Filter assembly for vacuum cleaner and method of using the same

Abstract

The present invention belongs to the technical field of dust separation, and specifically relates to an auxiliary device for filtering, and more particularly to a filter assembly for a vacuum cleaner and a method of using the same, wherein the filter assembly for a vacuum cleaner is provided with a supporting member in a wedge-shaped embedded block, and the walls on both sides of the wedge-shaped embedded block are pulled inward by the supporting member, thereby reducing the width of the wedge-shaped embedded block, thereby facilitating the removal and installation of a sealing ring and a filter disc; after the wedge-shaped embedded block is inserted into the embedding hole, the side wall of the wedge-shaped embedded block is clamped to the inner wall of the embedding hole by the supporting member, thereby reducing the gap at the clamping joint, thereby solving the problem of increased gap at the clamping joint caused by multiple disassembly of the sealing ring without affecting quick disassembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of dust separation, and specifically relates to an auxiliary device for filtering, and more particularly to a filter assembly for a vacuum cleaner and a method of using the same. Background Art

[0002] The filter element of a vacuum cleaner is one of its core components. Its main function is to filter out inhaled dust, dirt, debris and tiny particles to prevent secondary air pollution.

[0003] In the related art, in order to improve the filtration accuracy of the filter element, HEPA filter elements are used for filtration. Due to the high pore density of the filter material of the HEPA filter element, it is easily clogged by dust and needs to be cleaned and replaced regularly. In order to facilitate the disassembly and assembly of the filter, a snap-on method is generally adopted to snap the filter disc at the bottom of the filter to the bottom of the filter through a sealing ring to complete the fixing of the filter disc. After multiple replacements, the gap between the filter disc and the sealing ring will gradually increase, resulting in a deterioration in the sealing effect between the sealing ring and the bottom of the filter, which will cause gas to enter the filter element through the gap, resulting in a decrease in the filtration accuracy of the filter.

[0004] Therefore, how to solve the problem of reduced sealing effect of the sealing ring without affecting the removal of the filter element is a technical problem that needs to be solved urgently.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0006] The embodiments of the present disclosure at least provide a filter assembly for a vacuum cleaner and a method for using the same.

[0007] In a first aspect, an embodiment of the present disclosure provides a filter assembly for a vacuum cleaner, comprising:

[0008] cylindrical bracket;

[0009] A filter cartridge, which is sleeved on the side wall of the cylindrical support;

[0010] a sealing ring, which is arranged at the bottom of the cylindrical bracket;

[0011] A filter disc, which is clamped on the sealing ring and connected to the cylindrical bracket through the sealing ring;

[0012] Wherein, a wedge-shaped embedded block is provided on the top of the sealing ring;

[0013] An embedding hole is provided at the bottom of the cylindrical bracket corresponding to the wedge-shaped embedding block;

[0014] The top of the wedge-shaped embedded block is provided with a groove;

[0015] A supporting member is provided in the groove;

[0016] The abutment is suitable for pulling the walls on both sides of the wedge-shaped embedded block inward to reduce the width of the wedge-shaped embedded block; the abutment is suitable for clamping the side walls of the wedge-shaped embedded block and the inner wall of the embedded hole after the wedge-shaped embedded block is inserted into the embedded hole.

[0017] In an optional embodiment, the abutting member includes:

[0018] An insert rod, one end of which passes through the sealing ring and extends into the groove of the wedge-shaped embedded block, and the other end of which is sleeved with a return spring;

[0019] The sealing ring is provided with an installation groove for installing the return spring;

[0020] One end of the return spring abuts against the mounting groove, and the other end is fixedly connected to the insertion rod;

[0021] Two support rods, wherein one end of the support rod is hinged to the end of the insertion rod extending into the groove, and the other end of the support rod is hinged to the wall on the corresponding side of the wedge-shaped embedded block.

[0022] In an optional embodiment, the rotation angle of the support rod is a, and the range of a is between 30°-85°;

[0023] The rotation angle a refers to the angle between the axis of the support rod and the axis of the insertion rod.

[0024] In an optional embodiment, the bottom surface of the sealing ring is provided with an annular flange;

[0025] The annular flange is opened inwardly along the axial direction of the sealing ring, and forms a slot for inserting the filter disc with the bottom of the sealing ring;

[0026] One end of the insertion rod of the abutting member away from the groove abuts against the annular flange.

[0027] In an optional embodiment, the side wall of the filter disc is provided with an inclined groove;

[0028] A sliding column is extended radially outward from the fitting position between the insertion rod and the inclined slot;

[0029] The sliding post is inserted into the inclined groove;

[0030] After the wedge-shaped embedding block is inserted into the embedding hole, the filter disc is rotated by external force, driving the chute to rotate, thereby adjusting the distance between the sliding column and the bottom surface of the sealing ring, so that the supporting member further clamps the side wall of the wedge-shaped embedding block and the inner wall of the embedding hole, and at the same time clamps the filter disc and the bottom surface of the sealing ring.

[0031] In an optional embodiment, the side wall of the filter disc is further provided with a sliding groove adapted to the sliding post in the vertical direction;

[0032] The chute passes through the top surface of the filter disc, and the chute is connected to the chute;

[0033] When the filter disc is inserted into the slot of the sealing ring, the slide groove is first aligned with the slide post, and then the filter disc is rotated by external force to make the slide post inserted into the inclined groove and slide along the inclined groove.

[0034] In an optional embodiment, a sliding groove is provided on the side wall of the filter disc in the vertical direction;

[0035] A sliding column is extended radially outward from the fitting portion between the insertion rod and the sliding groove;

[0036] The sliding post is inserted into the sliding groove, and the side wall of the sliding groove is provided with a plurality of bar teeth along the sliding direction of the sliding post;

[0037] When the filter disc is pulled out, the vibration caused by the sliding post along the plurality of bar teeth shakes off the dust on the surface of the filter disc, the sealing ring and the filter cartridge.

[0038] In an optional embodiment, a first limiting ring is extended from the edge of the top of the cylindrical bracket axially toward the bottom of the cylindrical bracket;

[0039] A second limiting ring is extended from the edge of the bottom of the cylindrical bracket in the axial direction toward the top of the cylindrical bracket;

[0040] The top of the filter cartridge is installed between the first limiting ring and the side wall of the cylindrical bracket;

[0041] The bottom of the filter cartridge is mounted on the side wall bracket between the second limiting ring and the cylindrical shape.

[0042] In an optional embodiment, the embedded hole is provided close to the second limiting ring;

[0043] Furthermore, the embedding hole is away from the inner side of the filter cartridge.

[0044] In a second aspect, an embodiment of the present disclosure provides a method for using the filter assembly for a vacuum cleaner as described above, the method comprising:

[0045] During assembly:

[0046] Put the filter cartridge on the cylindrical bracket;

[0047] Attach the filter disc to the sealing ring;

[0048] Pull the walls on both sides of the wedge-shaped embedded block inwards through the supporting piece, and then insert the wedge-shaped embedded block into the embedded hole;

[0049] The side wall of the wedge-shaped embedded block is clamped to the inner wall of the embedded hole by a supporting piece;

[0050] During disassembly:

[0051] Remove the filter disc from the sealing ring;

[0052] Pull the walls on both sides of the wedge-shaped embedded block inwards through the supporting piece, and then pull the wedge-shaped embedded block out of the embedded hole;

[0053] Remove the filter cartridge from the cartridge holder.

[0054] The beneficial effect of the present invention is that the filter assembly for a vacuum cleaner and the method of using the same are as follows: by arranging a supporting member in the wedge-shaped embedded block, when the wedge-shaped embedded block is inserted into the embedded hole, the supporting member pulls the walls on both sides of the wedge-shaped embedded block inward, thereby reducing the width of the wedge-shaped embedded block and facilitating the removal of the sealing ring and the filter disc; after the wedge-shaped embedded block is inserted into the embedded hole, the supporting member clamps the side wall of the wedge-shaped embedded block to the inner wall of the embedded hole, reducing the gap at the clamping point, thereby solving the problem of increased gap at the clamping point caused by repeated removal of the sealing ring without affecting quick removal.

[0055] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1A schematic structural diagram of a filter assembly for a vacuum cleaner provided in an embodiment of the present disclosure;

[0059] Figure 2 A schematic structural diagram of a sealing ring provided in an embodiment of the present disclosure;

[0060] Figure 3 A cross-sectional view of a filter assembly for a vacuum cleaner provided in an embodiment of the present disclosure;

[0061] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0062] Figure 5 A schematic diagram of the structure of a filter disc provided in an embodiment of the present disclosure;

[0063] Figure 6 An exploded view of a filter assembly for a vacuum cleaner provided in an embodiment of the present disclosure;

[0064] Figure 7 A flow chart of a method for using a filter assembly for a vacuum cleaner provided by an embodiment of the present disclosure during installation;

[0065] Figure 8 This is a flow chart of a method for using a filter assembly for a vacuum cleaner during disassembly provided by an embodiment of the present disclosure.

[0066] In the figure: 100, cylindrical bracket; 110, embedding hole; 120, first limiting ring; 130, second limiting ring; 140-bracket body; 150-top cover; 200, filter cartridge; 300, sealing ring; 310, wedge-shaped embedding block; 311, groove; 320, supporting member; 321, plug rod; 322, return spring; 323, support rod; 3231, sliding column; 330, mounting groove; 340, annular flange; 350, slot; 400, filter disc; 410, inclined groove; 420, slide groove; 430, bar teeth. DETAILED DESCRIPTION

[0067] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0068] Research has found that after repeated replacements of the filter cartridge and filter disc, the elasticity of the sealing ring used to seal the filter disc and the bottom of the filter element decreases. This causes the gap between the sealing ring and the filter base to widen when the sealing ring's clamping block is engaged with the filter element base, increasing the gap between the sealing ring and the filter base and reducing the sealing effect of the sealing ring. If the width of the clamping block is increased to reduce the gap, the sealing ring will become too tight to the filter base, making it difficult to remove.

[0069] Based on the above research, an embodiment of the present disclosure provides a filter assembly for a vacuum cleaner and a method of using the same. A groove 311 is opened at the top of the wedge-shaped embedded block 310, and a supporting member 320 is provided in the groove 311. The supporting member 320 is used to support or pull inward the walls on both sides of the wedge-shaped embedded block 310, thereby reducing the gap between the wedge-shaped embedded block 310 and the embedded hole 110 while satisfying quick release.

[0070] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0071] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0072] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0073] See also Figure 1 and Figure 2 At least one embodiment provides a filter assembly for a vacuum cleaner, comprising the following structure:

[0074] The cylindrical bracket 100 is formed by plugging the top cover 150 and the bracket body 140. When assembling the filter cartridge 200, the bracket body 140 and the top cover 150 are separated, the filter cartridge 200 is placed on the bracket body 140, and then the top cover 150 is covered on the bracket body to complete the installation of the filter cartridge 200. The structural diagram of the cylindrical bracket 100 after the top cover 150 and the bracket body 140 are separated is shown in FIG. Figure 6 shown.

[0075] The filter cartridge 200 is sleeved on the side wall of the cylindrical bracket 100 .

[0076] Specifically, the filter cartridge 200 is a HEPA filter that can capture particles larger than 0.3 μm.

[0077] The sealing ring 300 is disposed at the bottom of the cylindrical bracket 100 .

[0078] The filter disc 400 is clamped on the sealing ring 300 and connected to the cylindrical bracket 100 through the sealing ring 300 .

[0079] It should be noted that the filter disc 400 includes a filter and a circular frame made of elastic material for supporting the filter, wherein the filter is a HEPA filter.

[0080] See also Figure 2 as well as Figure 3 A wedge-shaped embedding block 310 is provided on the top of the sealing ring 300 , and an embedding hole 110 is provided at the bottom of the cylindrical bracket 100 corresponding to the wedge-shaped embedding block 310 .

[0081] The wedge-shaped embedded block 310 is in an inverted trapezoidal shape, and the shape of the embedded hole 110 is also inverted trapezoidal, and the wedge-shaped embedded block 310 is adapted to the size of the embedded hole 110. During installation, the wedge-shaped embedded block 310 is inserted into the embedded hole 110 to complete the installation of the sealing ring 300.

[0082] The top of the wedge-shaped embedded block 310 is provided with a groove 311. By providing the groove 311, the deformation ability of the wedge-shaped embedded block 310 is improved, thereby facilitating the wedge-shaped embedded block 310 to be stuck in the embedded hole 110 and to be easy to disassemble.

[0083] A supporting member 320 is provided in the groove 311; when the wedge-shaped embedded block 310 is inserted into the embedded hole 110, the supporting member 320 pulls the walls on both sides of the wedge-shaped embedded block 310 inward to reduce the width of the wedge-shaped embedded block 310; after the wedge-shaped embedded block 310 is inserted into the embedded hole 110, the supporting member 320 clamps the side wall of the wedge-shaped embedded block 310 with the inner wall of the embedded hole 110.

[0084] At the same time, the assembly accuracy requirement between the sealing ring 300 and the cylindrical bracket 100 can be reduced, and the accuracy can be adaptively compensated by the supporting member 320.

[0085] During disassembly or installation, the walls on both sides of the wedge-shaped embedded block 310 are pulled inward by the supporting member 320, thereby reducing the width of the wedge-shaped embedded block 310, thereby facilitating the disassembly or installation of the sealing ring 300 and the filter disc 400; after the wedge-shaped embedded block 310 is inserted into the embedding hole 110, the side walls of the wedge-shaped embedded block 310 are clamped to the inner wall of the embedding hole 110 by the supporting member 320, thereby reducing the gap at the clamping point, thereby solving the problem of increased gap at the clamping point caused by multiple disassembly of the sealing ring 300 without affecting quick disassembly.

[0086] It should be noted that during initial assembly, the gap at the clamping joint ranges from 0.1mm to 0.3mm. When the abutment 320 clamps the sidewall of the wedge-shaped insert 310 against the inner wall of the insert hole 110, it can compensate for the gap, and the compensation range is ≤0.5mm, further reducing the gap. At this time, the gap at the clamping joint ranges from 0.05mm to 0.1mm. After multiple disassemblies, if the gap at the clamping joint is no greater than 0.5mm, the abutment 320 can compensate for it, reducing the risk of dust infiltration and thus ensuring the filtration accuracy of the filter assembly.

[0087] See also Figure 3 and Figure 4 , the supporting member 320 includes the following structure:

[0088] The insertion rod 321 has one end passing through the sealing ring 300 and extending into the groove 311 of the wedge-shaped embedded block 310. The other end is sleeved with a return spring 322. The insertion rod 321 drives the support rod 323 to rotate, thereby supporting or shrinking the walls on both sides of the wedge-shaped embedded block 310.

[0089] The sealing ring 300 is provided with a mounting groove 330 for mounting the return spring 322 ; one end of the return spring 322 abuts against the mounting groove 330 , and the other end is fixedly connected to the insertion rod 321 .

[0090] The position of the insertion rod 321 is reset by setting a reset spring 322. After the wedge-shaped embedded block 310 is inserted into the embedded hole 110, the insertion rod 321 is reset under the elastic force of the reset spring 322, driving the support rod 323 to open the walls on both sides of the wedge-shaped embedded block 310, thereby reducing the gap between the walls on both sides of the wedge-shaped embedded block 310 and the embedded hole 110, and improving the sealing between the sealing ring 300 and the bottom of the cylindrical bracket 100.

[0091] Two support rods 323 , wherein one end of the support rod 323 is hinged to one end of the insertion rod 321 extending into the groove 311 , and the other end of the support rod 323 is hinged to the wall on the corresponding side of the wedge-shaped embedded block.

[0092] The rotation angle of the support rod 323 is a, and the range of a is between 30°-85°; wherein the rotation angle a refers to the angle between the axis of the support rod 323 and the axis of the insertion rod 321. Figure 4 When the direction F is rising, the rotation angle a decreases, and the insertion rod 321 moves along Figure 4 When the direction opposite to the direction shown by F decreases, the rotation angle a increases.

[0093] An annular flange 340 is provided on the bottom surface of the sealing ring 300 , and one end of the insertion rod 321 of the abutting member 320 away from the groove 311 abuts against the annular flange 340 .

[0094] When pushing the rod 321 upward (as Figure 4 F in the middle pushes the annular flange 340 and then pushes the insertion rod 321 to move upward, thereby reducing the rotation angle a of the support rod 323, causing the walls on both sides of the wedge-shaped embedded block 310 to expand and contract inward, thereby reducing the width of the wedge-shaped embedded block 310.

[0095] The annular flange 340 is opened inwardly along the axial direction of the sealing ring 300 and forms a slot 350 with the bottom of the sealing ring 300 for inserting the filter disc 400. When the filter disc 400 is installed, the filter disc 400 is inserted into the slot 350 and supported by the annular flange 340.

[0096] See also Figure 4 and Figure 5 , the side wall of the filter disc 400 is provided with an inclined groove 410; a sliding post 3231 extends radially outward from the fitting position of the insertion rod 321 and the inclined groove 410; the sliding post 3231 is inserted into the inclined groove 410; after the wedge-shaped embedded block 310 is inserted into the embedding hole 110, the filter disc 400 is rotated by external force, driving the inclined groove 410 to rotate, thereby adjusting the distance between the sliding post 3231 and the bottom surface of the sealing ring 300, so that the supporting member 320 further clamps the side wall of the wedge-shaped embedded block 310 and the inner wall of the embedding hole 110, and at the same time clamps the filter disc 400 and the bottom surface of the sealing ring 300.

[0097] Through the cooperation between the inclined groove 410 and the sliding column 3231, on the one hand, the filter disc 400 is clamped to the bottom surface of the sealing ring 300, reducing the gap between the filter disc 400 and the sealing ring 300, thereby improving the sealing performance of the filter disc 400 and the sealing ring 300; on the other hand, the wedge-shaped embedded block 310 is clamped to the embedded hole 110, thereby increasing the sealing performance between the sealing ring 300 and the bottom of the filter cartridge 200 bracket. After multiple disassemblies, even if the elasticity of the wedge-shaped embedded block 310 is weakened, the wedge-shaped embedded block 310 can be clamped to the embedded hole 110 by the supporting member 320, thereby not affecting the sealing performance of the sealing ring 300.

[0098] In order to facilitate the alignment of the sliding post 3231 with the inclined groove 410, in a preferred embodiment, the side wall of the filter disc 400 is further provided with a sliding groove 420 adapted to the sliding post 3231 in the vertical direction; the sliding groove 420 passes through the top surface of the filter disc 400, and the sliding groove 420 is connected to the inclined groove 410.

[0099] When the filter disc 400 is inserted into the slot of the sealing ring 300, the slide groove 420 is first aligned with the slide post 3231. Then, the filter disc 400 is rotated by external force, so that the slide post 3231 is inserted into the inclined groove 410 and slides along the inclined groove 410. The slide post 3231 and the slide groove 420 guide the installation of the filter disc 400, thereby facilitating the installation of the filter disc 400.

[0100] In a preferred embodiment, the side wall of the slide groove 420 is provided with a plurality of bar teeth 430 along the sliding direction of the slide column 3231; when the filter disc 400 is pulled out, the vibration formed by the sliding of the slide column 3231 along the plurality of bar teeth 430 shakes off the dust on the surface of the filter disc 400, the sealing ring 300 and the filter cartridge 200.

[0101] The vibration generated by the sliding column 3231 sliding across the bar teeth 430 shakes off the dust on the surfaces of the sealing ring 300, the filter disc 400 and the filter cartridge 200, reducing the amount of dust remaining on the surface of the sealing ring 300 during disassembly, thereby reducing the dust content in the gap formed by the wedge-shaped embedding block 310 and the embedding hole 110, further ensuring the sealing performance of the sealing ring 300.

[0102] See also Figure 6 In an optional embodiment, a first limiting ring 120 is extended axially from the edge of the top of the cylindrical bracket 100 toward the bottom of the cylindrical bracket 100; a second limiting ring 130 is extended axially from the edge of the bottom of the cylindrical bracket 100 toward the top of the cylindrical bracket 100; the top of the filter cartridge 200 is installed between the first limiting ring 120 and the side wall of the cylindrical bracket 100; the bottom of the filter cartridge 200 is installed between the second limiting ring 130 and the side wall of the cylindrical bracket.

[0103] The embedding hole 110 is positioned near the second retaining ring 130 and away from the inner side of the filter cartridge 200. The first and second retaining rings 120, 130 reduce the amount of dust that enters the bottom and top of the filter cartridge 200, ensuring the filtration accuracy of the filter cartridge 200. Furthermore, by positioning the embedding hole 110 away from the inner wall of the filter cartridge 200, gas that enters the sealing ring 300 along the insertion rod 321 will not enter the interior of the filter cartridge 200, thereby preventing it from affecting the filtration accuracy of the filter assembly.

[0104] See also Figure 7 and Figure 8 At least one embodiment further provides a method for using the filter assembly for a vacuum cleaner as described above, the method comprising:

[0105] During assembly:

[0106] S110, sleeve the filter cartridge 200 onto the cylindrical support 100;

[0107] S120, clamping the filter disc 400 onto the sealing ring 300;

[0108] S130, using the supporting member 320 to pull the walls on both sides of the wedge-shaped embedded block 310 inward, and then inserting the wedge-shaped embedded block 310 into the embedded hole 110;

[0109] S140 , clamping the side wall of the wedge-shaped embedding block 310 and the inner wall of the embedding hole 110 by the supporting member 320 .

[0110] During disassembly:

[0111] S210, removing the filter disc 400 from the sealing ring 300;

[0112] S220, using the supporting member 320 to pull the walls on both sides of the wedge-shaped embedded block 310 inward, and then pull the wedge-shaped embedded block 310 out of the embedded hole 110;

[0113] S230 , removing the filter cartridge 200 from the cylindrical support 100 .

[0114] In summary, the present invention provides a filter assembly for a vacuum cleaner and a method for using the same, wherein the filter assembly for a vacuum cleaner comprises: a cylindrical bracket 100; a filter cartridge 200, which is sleeved on the side wall of the cylindrical bracket 100; a sealing ring 300, which is arranged at the bottom of the cylindrical bracket 100; a filter disc 400, which is clamped on the sealing ring 300 and connected to the cylindrical bracket 100 through the sealing ring 300; wherein a wedge-shaped embedded block 310 is provided on the top of the sealing ring 300; an embedded hole 110 is provided at the bottom of the cylindrical bracket 100 corresponding to the wedge-shaped embedded block 310; the A groove 311 is provided at the top of the wedge-shaped embedded block 310; a supporting member 320 is provided in the groove 311; the supporting member 320 pulls the walls on both sides of the wedge-shaped embedded block 310 inward, thereby reducing the width of the wedge-shaped embedded block 310, thereby facilitating the removal and installation of the sealing ring 300 and the filter disc 400; after the wedge-shaped embedded block 310 is inserted into the embedding hole 110, the supporting member 320 clamps the side wall of the wedge-shaped embedded block 310 to the inner wall of the embedding hole 110, reducing the gap at the clamping point, thereby solving the problem of increased gap at the clamping point caused by multiple removals of the sealing ring 300 without affecting quick release.

[0115] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A filter assembly for a vacuum cleaner, characterized in that: include: a cylindrical support (100); A filter cartridge (200) sleeved on the side wall of the cylindrical support (100); A sealing ring (300) is provided at the bottom of the cylindrical support (100); a filter disc (400) which is clamped onto the sealing ring (300) and connected to the cylindrical bracket (100) via the sealing ring (300); Wherein, a wedge-shaped embedded block (310) is provided on the top of the sealing ring (300); An embedding hole (110) is provided at the bottom of the cylindrical bracket (100) corresponding to the wedge-shaped embedding block (310); A groove (311) is provided on the top of the wedge-shaped embedded block (310), and a supporting member (320) is provided in the groove (311); The supporting member (320) is adapted to pull the walls on both sides of the wedge-shaped embedded block (310) inward to reduce the width of the wedge-shaped embedded block (310); the supporting member (320) is adapted to clamp the side walls of the wedge-shaped embedded block (310) and the inner wall of the embedded hole (110) after the wedge-shaped embedded block (310) is inserted into the embedded hole (110); The supporting member (320) includes: An insert rod (321), one end of which passes through the sealing ring (300) and extends into the groove (311) of the wedge-shaped embedded block (310), and the other end of which is sleeved with a return spring (322); The sealing ring (300) is provided with a mounting groove (330) for mounting the return spring (322); One end of the return spring (322) abuts against the mounting groove (330), and the other end is fixedly connected to the insertion rod (321); Two support rods (323), wherein one end of the support rod (323) is hinged to one end of the insertion rod (321) extending into the groove (311), and the other end of the support rod (323) is hinged to the wall on the corresponding side of the wedge-shaped embedded block (310).

2. The filter assembly for a vacuum cleaner according to claim 1, wherein: The rotation angle of the support rod (323) is a, and the range of a is between 30° and 85°; The rotation angle a refers to the angle between the axis of the support rod (323) and the axis of the insertion rod (321).

3. The filter assembly for a vacuum cleaner according to claim 1, wherein: The bottom surface of the sealing ring (300) is provided with an annular flange (340); The annular flange (340) is opened inwardly along the axial direction of the sealing ring (300), and forms a slot (350) for inserting the filter disc (400) with the bottom of the sealing ring (300); One end of the insertion rod (321) of the abutting member (320) away from the groove (311) abuts against the annular flange (340).

4. The filter assembly for a vacuum cleaner according to claim 3, wherein: The side wall of the filter disc (400) is provided with an inclined groove (410); A sliding column (3231) extends radially outward from the fitting portion between the insertion rod (321) and the inclined groove (410); The sliding column (3231) is inserted into the inclined groove (410); After the wedge-shaped embedded block (310) is inserted into the embedded hole (110), the filter disc (400) is rotated by external force, driving the inclined groove (410) to rotate, thereby adjusting the distance between the sliding column (3231) and the bottom surface of the sealing ring (300), and further adjusting the distance between the insertion rod (321) and the bottom surface of the sealing ring (300), so that the supporting member (320) further clamps the side wall of the wedge-shaped embedded block (310) and the inner wall of the embedded hole (110), and at the same time clamps the filter disc (400) and the bottom surface of the sealing ring (300).

5. The filter assembly for a vacuum cleaner according to claim 4, wherein: The side wall of the filter disc (400) is further provided with a sliding groove (420) adapted to the sliding column (3231) in the vertical direction; The chute (420) passes through the top surface of the filter disc (400), and the chute (420) is in communication with the chute (410); When the filter disc (400) is inserted into the slot of the sealing ring (300), the slide groove (420) is first aligned with the slide post (3231), and then the filter disc (400) is rotated by external force, so that the slide post (3231) is inserted into the inclined groove (410) and slides along the inclined groove (410).

6. The filter assembly for a vacuum cleaner according to claim 3, wherein: A sliding groove (420) is provided on the side wall of the filter disc (400) in a vertical direction; A sliding column (3231) extends radially outward from the fitting point between the insertion rod (321) and the sliding groove (420); The sliding post (3231) is inserted into the sliding groove (420), and a side wall of the sliding groove (420) is provided with a plurality of bar-shaped teeth (430) along the sliding direction of the sliding post (3231); When the filter disc (400) is pulled out, the vibration generated by the sliding column (3231) sliding along the plurality of bar teeth (430) shakes off the dust on the surfaces of the filter disc (400), the sealing ring (300) and the filter cartridge (200).

7. The filter assembly for a vacuum cleaner according to claim 1, wherein: A first limiting ring (120) extends from the edge of the top of the cylindrical bracket (100) axially toward the bottom of the cylindrical bracket (100); A second limiting ring (130) extends from the edge of the bottom of the cylindrical bracket (100) axially toward the top of the cylindrical bracket (100); The top of the filter cartridge (200) is installed between the first limiting ring (120) and the side wall of the cylindrical bracket (100); The bottom of the filter cartridge (200) is installed between the second limiting ring (130) and the side wall of the cylindrical bracket.

8. The filter assembly for a vacuum cleaner according to claim 7, wherein: The embedded hole (110) is arranged close to the second limiting ring (130); Furthermore, the embedding hole (110) is away from the inner side of the filter cartridge (200).

9. A method for using the filter assembly for a vacuum cleaner according to claim 1, characterized in that: The method of use includes: During assembly: The filter cartridge (200) is sleeved on the cylindrical support (100); Clamp the filter disc (400) onto the sealing ring (300); Pull the walls on both sides of the wedge-shaped embedded block (310) inwards by using the supporting member (320), and then insert the wedge-shaped embedded block (310) into the embedded hole (110); The side wall of the wedge-shaped embedded block (310) is clamped to the inner wall of the embedded hole (110) by means of a supporting member (320); During disassembly: Remove the filter disc (400) from the sealing ring (300); Pull the walls on both sides of the wedge-shaped embedded block (310) inwards through the supporting member (320), and then pull the wedge-shaped embedded block (310) out of the embedded hole (110); Remove the filter cartridge (200) from the cylindrical support (100).

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