An air filter arrangement for a vacuum cleaner

Abstract

The utility model discloses an air filter device of dust collector, its characterized in that, including first component and second component, first component and second component are mutually nested installation, first component includes tubular portion no.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to an air filtration device for a vacuum cleaner. Background Technology

[0002] Vacuum cleaners use an electric motor to drive blades to rotate at high speed, creating negative air pressure inside a sealed casing to suck up dust and debris. Because vacuum cleaners can suck up dust and debris without causing it to fly around, they can prevent dust and debris from being inhaled and affecting human health, and are therefore increasingly favored by families.

[0003] However, the filtration devices in existing vacuum cleaners are generally divided into primary filtration and fine filtration. Primary filtration mainly targets large particles of debris, while fine filtration mainly targets tiny dust particles. Currently, the structure used for primary filtration is a stainless steel filter screen. Through an electro-corrosion process, small holes are formed on this stainless steel filter screen. Air can pass through the holes, while large particles of debris cannot pass through and are blocked by the stainless steel filter screen, thus achieving the purpose of primary filtration.

[0004] Currently, primary filtration typically uses stainless steel filter screens, which are injection molded together with plastic to form an integrated filter structure.

[0005] This invention provides a new technical solution to the problem of primary filtration. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an air filtration device for a vacuum cleaner that is simple in structure, easy to process and low in cost, easy to assemble and disassemble, easy to recycle, and highly practical.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An air filtration device for a vacuum cleaner includes a first component and a second component, wherein the first component and the second component are nested together.

[0009] The first component includes a cylindrical part, and a plurality of through grooves are formed on the outer periphery of the cylindrical part along the axial direction, with ribs formed between adjacent through grooves.

[0010] The second component includes a cylindrical part 2, and a plurality of through grooves 2 are formed on the outer periphery of the cylindrical part 2 along the axial direction, and ribs 2 are formed between adjacent through grooves 2;

[0011] The first cylindrical part and the second cylindrical part are nested together, and the first rib and the second rib are respectively embedded in the second through groove and the first through groove, forming a filter gap between the first rib and the second rib for dust and air to pass through.

[0012] The present invention is further configured such that the width of the filter gap is 0.1~1mm.

[0013] The present invention is further configured such that the first component includes an annular boss and an annular base, the annular boss being integrally connected to the upper end of the cylindrical part, and the annular base being partially embedded in the inner circumference of the bottom end of the cylindrical part and integrally connected to several ribs.

[0014] The present invention is further configured such that the second component includes an annular boss and a cylindrical part. The annular boss is partially sleeved on the outer periphery of the upper end of the cylindrical part and integrally connected to the outer side of several ribs. The extension is cylindrical and integrally connected to the lower center of the cylindrical part. The center of the extension has a through hole that communicates with the inner periphery of the cylindrical part.

[0015] The present invention is further configured such that the first rib is arranged in a ring array along the axial direction of the first cylindrical part, the second rib is arranged in a ring array along the axial direction of the second cylindrical part, and the widths of the first rib and the second rib in the vertical direction are both gradually varied.

[0016] The present invention is further configured such that the width of the first rib gradually increases from bottom to top, and the width of the second rib gradually decreases from bottom to top.

[0017] The present invention is further configured such that the first through groove and the second through groove are respectively adapted to the first rib and the second rib, the width of the first through groove gradually narrows from bottom to top, and the width of the second through groove gradually widens from bottom to top.

[0018] The present invention is further configured such that the overall width of the first through groove is smaller than the overall width of the second through groove.

[0019] The present invention is further configured such that the outer peripheral surface of the first cylindrical part coincides with the outer peripheral surface of the second cylindrical part.

[0020] The beneficial effects of this utility model are as follows: The air filtration device for the vacuum cleaner in this utility model mainly adopts a first component and a second component nested together. The first component includes a cylindrical part 1, and several through grooves 1 are opened on the outer periphery of the cylindrical part 1. Ribs 1 are formed between each two adjacent through grooves 1. Similarly, the second component includes a cylindrical part 2, and several through grooves 2 are opened on the outer periphery of the cylindrical part 2. Ribs 2 are formed between each two adjacent through grooves 2. The cylindrical part 1 and the cylindrical part 2 are nested together so that ribs 1 are embedded in through grooves 2 and ribs 2 are embedded in through grooves 1. A filter gap is formed between ribs 1 and ribs 2, which allows dust and air to pass through only. Large dust particles can be blocked. The overall structure is simple to assemble, easy to process and low in cost. It is easy to assemble and disassemble, easy to recycle, and highly practical. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the air filtration device of a vacuum cleaner in this embodiment.

[0022] Figure 2 This is an exploded view of an air filtration device for a vacuum cleaner in this embodiment.

[0023] Figure 3 This is a partial cross-sectional view of the air filtration device of a vacuum cleaner in this embodiment.

[0024] Figure 4 for Figure 3 Enlarged view at point A.

[0025] Reference numerals: First component 1; Annular boss 11; Cylindrical part 12; Through groove 121; Rib 122; Upper end face 123; Annular base 13; Second component 2; Annular boss 21; Cylindrical part 22; Through groove 221; Rib 222; Top end face 223; Extension 23; Through hole 231; Filter gap 3. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This embodiment discloses an air filtration device for a vacuum cleaner, referring to... Figures 1-4As shown, it mainly includes a first component 1 and a second component 2, wherein the first component 1 is partially nested within the second component 2; the first component 1 mainly includes a cylindrical part 12, and a plurality of through slots 121 are formed on the outer periphery of the cylindrical part 12 along its axial direction. The plurality of through slots 121 are distributed in a ring array structure, and a rib 122 is formed between each two adjacent through slots 121. The plurality of ribs 122 are arranged in a ring array structure along their axial direction; an annular boss 11 is integrally connected to the upper end of the cylindrical part 12, and an annular base 13 is integrally connected to the bottom end of the cylindrical part 12. Specifically, the annular base 13 is integrally connected to the ribs 122, the inner periphery of the annular base 13 protrudes from the inner side of the ribs 122, and the outer side of the ribs 122 protrudes from the outer periphery of the annular base 13. Similarly, the second component 2 mainly includes a cylindrical part 22. Several through slots 221 are formed on the outer periphery of the cylindrical part 22 along its axial direction. The several through slots 221 are arranged in a ring array structure. Ribs 222 are formed between each two adjacent through slots 221. The several ribs 222 are arranged in a ring array structure along their axial direction. An annular boss 21 is fitted on the outer periphery of the upper end of the cylindrical part 22. The upper part of the annular boss 21 protrudes from the upper end of the cylindrical part 22. That is, the inner periphery of the annular boss 21 is integrally connected to the outer end face of the several ribs 222. The upper end of the annular boss 21 protrudes from the top end face 223 of the ribs 222. An extension 23 is integrally connected to the lower end of the cylindrical part 22. The extension 23 has a cylindrical structure. A through hole 231 is formed in the center of the extension 23. The through hole 231 can communicate with the inner periphery of the cylindrical part 22.

[0028] Reference Figure 3 As shown, the first component 1 is nested and installed above the second component 2 from top to bottom, so that the first cylindrical part 12 and the second cylindrical part 22 are nested together. More specifically, the first rib 122 is embedded in the interior of the second through groove 221, and the second rib 222 is correspondingly embedded in the interior of the first through groove 121. The top surface 223 of the second rib 222 abuts against the upper surface of the first through groove 121, forming a vertically limiting installation of the first component 1 and the second component 2. A filter gap 3 can be formed between each first rib 122 and each second rib 222. The filter gap 3 can block large particles of debris and only allow dust and air to pass through, forming the primary filtration of the vacuum cleaner. The specific size of the filter gap 3 is set to 0.1~1mm, which can be set in detail according to the usage scenario of the vacuum cleaner.

[0029] Reference Figure 2As shown, the through groove 121 on the outer periphery of the cylindrical part 12 and the through groove 222 on the outer periphery of the cylindrical part 22 both have a gradually changing width in the vertical direction. Specifically, the width of the through groove 121 gradually narrows from bottom to top, while the width of the through groove 222 gradually widens from bottom to top. Since the through groove 121 and the through groove 221 are adapted to the rib 122 and the rib 222 respectively, the width of the rib 122 gradually widens from bottom to top, and the width of the rib 222 gradually narrows from bottom to top. The main purposes are to facilitate demolding during the production process and to facilitate the first part 1 to be nested and installed on top of the second part 2 from top to bottom, which facilitates assembly and disassembly.

[0030] Reference Figure 3 and Figure 4 As shown, the overall width of through groove 121 is smaller than the overall width of through groove 221, which makes the overall width of rib 122 larger than the overall width of rib 222. When the first component 1 and the second component 2 are nested and installed, the outer peripheral surface of cylindrical part 12 and the outer peripheral surface of cylindrical part 22 can remain flush, improving the overall integrity and stability of the assembly between the two.

[0031] The air filtration device in this invention is mainly used for primary filtration in vacuum cleaners. Vacuum cleaners typically have a dust collection box, and this filtration device also requires a filter element (screen) installed inside. Both are installed together in the dust collection box. The extension 23 on the second component 2 can abut against the dust collection box, sealing the opening of the through hole 231 on the extension 23. When the vacuum cleaner is working, the motor drives the blades to rotate at high speed, generating negative air pressure within the sealed housing to suck up dust and debris. Both large and small dust particles are sucked into the dust collection box. Large particles cannot pass through the filter gaps 3 in the filtration device and are blocked in the dust collection box. Small dust particles and air pass through the filter gaps 3 and then through the filter element for fine filtration, and the filtered air is discharged. Dust is usually adsorbed on the surface of the filter element, which typically needs to be replaced periodically. When too many dust particles accumulate, they can be discharged through the through hole 231 in the center of the extension 23 on the second component 2, which can appropriately extend the service life of the filter element and save costs.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An air filtration device for a vacuum cleaner, characterized in that, It includes a first component (1) and a second component (2), which are nested together. The first component (1) includes a cylindrical part (12), and a plurality of through slots (121) are provided on the outer periphery of the cylindrical part (12) along the axial direction, and ribs (122) are formed between adjacent through slots (121). The second component (2) includes a cylindrical part (22), and a plurality of through slots (221) are provided on the outer periphery of the cylindrical part (22) along the axial direction, and ribs (222) are formed between adjacent through slots (221). The first cylindrical part (12) and the second cylindrical part (22) are nested together. The first rib (122) and the second rib (222) are respectively embedded in the second through groove (221) and the first through groove (121). A filter gap (3) is formed between the first rib (122) and the second rib (222) to allow dust and air to pass through.

2. The air filtration device for a vacuum cleaner according to claim 1, characterized in that, The width of the filter gap (3) is 0.1~1 mm.

3. The air filtration device for a vacuum cleaner according to claim 1, characterized in that, The first component (1) further includes an annular boss (11) and an annular base (13). The annular boss (11) is integrally connected to the upper end of the cylindrical part (12), and the annular base (13) is partially embedded in the inner circumference of the bottom end of the cylindrical part (12) and integrally connected to several ribs (122).

4. The air filtration device for a vacuum cleaner according to claim 1, characterized in that, The second component (2) also includes an annular boss (21) and a cylindrical part (22). The annular boss (21) is partially sleeved on the outer periphery of the upper end of the cylindrical part (22) and integrally connected to the outer side of several ribs (222). The lower end center of the cylindrical part (22) is integrally connected to an extension (23). The extension (23) is cylindrical and has a through hole (231) at its center. The through hole (231) communicates with the inner circumference of the cylindrical part (22).

5. The air filtration device for a vacuum cleaner according to claim 1, characterized in that, The first rib (122) is arranged in a ring array along the axis of the first cylindrical part (12), and the second rib (222) is arranged in a ring array along the axis of the second cylindrical part (22). The widths of the first rib (122) and the second rib (222) in the vertical direction are both gradually varied.

6. The air filtration device for a vacuum cleaner according to claim 5, characterized in that, The width of the first rib (122) gradually increases from bottom to top, and the width of the second rib (222) gradually decreases from bottom to top.

7. An air filtration device for a vacuum cleaner according to claim 6, characterized in that, The first through groove (121) and the second through groove (221) are adapted to the first rib (122) and the second rib (222) respectively. The width of the first through groove (121) gradually narrows from bottom to top, and the width of the second through groove (221) gradually widens from bottom to top.

8. An air filtration device for a vacuum cleaner according to claim 7, characterized in that, The overall width of the first through slot (121) is smaller than the overall width of the second through slot (221).

9. An air filtration device for a vacuum cleaner according to claim 1, characterized in that, The outer peripheral surface of the first cylindrical part (12) coincides with the outer peripheral surface of the second cylindrical part (22).

Images