Multi-stage filtering dust collector filter screen

Abstract

The utility model provides a dust collector filter screen with multi-stage filtration, which relates to the technical field of dust collector filter screens and comprises an annular block, a cylinder coaxially arranged with the annular block is welded to the bottom end face of the annular block, and three-stage filtration of air sucked by a dust collector is realized sequentially through a stainless steel filter screen, an inner filter screen sleeve and an outer filter screen sleeve. Large-size solid impurities possibly contained in air are filtered and intercepted on the basis of the stainless steel filter screen, so that the situation that the large-size solid impurities are impacted and damaged when making contact with the subsequent outer filter screen sleeve and the subsequent inner filter screen sleeve due to large impact force is avoided, and interception protection is achieved; and subsequently, impurities contained in the air are filtered to the maximum extent on the basis of matched filtering of the inner filter screen sleeve and the outer filter screen sleeve on the air, so that the suction force and the cleaning effect of the dust collector are ensured, and the problems that an existing dust collector filter screen is relatively low in impact resistance and is easily damaged by impact of large-size solid impurities are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaner filters, and in particular to a multi-stage filtering vacuum cleaner filter. Background Art

[0002] Vacuum cleaner filters, as a key component in vacuum cleaners, are primarily used to filter impurities from the air, ensuring the vacuum cleaner's suction power and cleaning effectiveness. However, current vacuum cleaner filters have a significant problem: their relatively low impact resistance. Once large solid impurities are introduced into the vacuum cleaner filter along with the air, they can easily damage the filter due to their greater impact force. Once this occurs, it will seriously affect the filter's filtration application, thereby reducing the overall performance and effectiveness of the vacuum cleaner. Utility Model Content

[0003] The utility model relates to a multi-stage filtering vacuum cleaner filter screen, which solves the problem that the existing vacuum cleaner filter screen has relatively low impact resistance and is easily damaged by the impact of large-volume solid impurities.

[0004] The utility model provides a multi-stage filtration vacuum cleaner filter screen, specifically comprising: an annular block, the bottom end face of the annular block is welded with a cylinder arranged coaxially therewith, the outer diameter of the cylinder is smaller than the outer diameter of the annular block, and the inner diameter of the cylinder is also smaller than the inner diameter of the annular block; the outer circumferential surface of the cylinder is provided with eight matching openings connected with the inner circumferential surface in an annular array; the bottom end face of the cylinder is provided with six snap fasteners a in an annular array; a stopper with a circular block structure is provided directly below the cylinder, the diameter of the stopper is consistent with the outer diameter of the annular block; the top face of the stopper is provided with six snap fastener grooves b in an annular array, and the six snap fastener grooves b are respectively snap-fitted with the six snap fasteners a; the outer circumferential surface of the cylinder is sleeved with an outer filter screen sleeve; the inner circumferential surface of the cylinder is sleeved with an inner filter screen sleeve.

[0005] Furthermore, the outer filter screen sleeve adopts a nylon filter screen, and the outer filter screen sleeve covers the outer opening end parts of the eight matching openings.

[0006] Furthermore, the inner filter screen sleeve adopts a nylon filter screen, and the inner filter screen sleeve covers the inner opening end parts of the eight matching openings.

[0007] Furthermore, the top surface of the annular block is provided with six snap grooves a in the shape of an annular array; an annular plate is provided directly above the annular block, and the bottom end surface of the annular plate is welded with six snap parts b in the shape of an annular array, and the six snap parts b are respectively snap-fitted with the six snap grooves a; the inner diameter of the annular plate is consistent with the inner diameter of the annular block.

[0008] Furthermore, a stainless steel filter is fixedly installed on the inner circumference of the annular plate. The stainless steel filter is designed as a top-opening structure, and the top surface of the stainless steel filter is in the same horizontal plane as the top surface of the annular plate.

[0009] This utility model provides a multi-stage filtration vacuum cleaner filter screen, which has the following beneficial effects:

[0010] The utility model realizes three-stage filtration of the air inhaled by the vacuum cleaner through the stainless steel filter, the inner filter cover and the outer filter cover in sequence. The stainless steel filter is used to filter and intercept large-volume solid impurities that may be contained in the air, so as to avoid the large-volume solid impurities from being damaged by impact when contacting the subsequent outer filter cover and the inner filter cover due to the large impact force, thereby realizing interception protection. The subsequent coordinated filtration of the air by the inner filter cover and the outer filter cover can filter the impurities contained in the air to the maximum extent, so as to ensure the suction power and cleaning effect of the vacuum cleaner.

[0011] The annular block and the annular plate of the utility model are designed as a split structure. Therefore, when the utility model is disassembled for cleaning, the annular block and the annular plate can be disassembled and separated simultaneously, so as to facilitate all-round cleaning of the stainless steel filter screen. Moreover, the stopper and the cylinder of the utility model are also designed as a split structure. Therefore, when the utility model is disassembled for cleaning, the stopper and the cylinder can be disassembled and separated simultaneously, so as to facilitate the outer filter screen sleeve and the inner filter screen sleeve to be pulled out from the cylinder, thereby facilitating all-round cleaning of the outer filter screen sleeve and the inner filter screen sleeve, and also facilitating the cleaning of the cylinder without dead angles, thereby ensuring the cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiment of this utility model, the drawings of the embodiment will be briefly introduced below.

[0013] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0014] In the attached figure:

[0015] Figure 1 Shows an axonometric structural diagram of the present application;

[0016] Figure 2 Shows a schematic diagram of the split structure of this application;

[0017] Figure 3 The figure shows the isometric structure diagram of the bottom end of the annular plate of the present application;

[0018] Figure 4 It shows a schematic diagram of the top axonometric structure of the annular block and the stopper of the present application in a separated state;

[0019] Figure 5It shows a schematic diagram of the bottom axonometric structure of the annular block and the stopper of the present application in a separated state;

[0020] Figure 6 shows a schematic cross-sectional view of the present application;

[0021] Reference Signs List

[0022] 1. Annular block; 101. Stopper; 102. Buckle groove a; 103. Cylinder; 104. Matching opening; 105. Buckle groove b; 106. Buckle a;

[0023] 2. Annular plate; 201. Stainless steel filter; 202. Fastener b;

[0024] 3. External filter cover;

[0025] 4. Filter cover. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution, and advantages of this practical embodiment more clear, the technical solution of this practical embodiment will be clearly and completely described below in conjunction with the drawings of this practical embodiment. Obviously, the described embodiment is only a part of the embodiment of this practical embodiment, not all of the embodiments. Based on the described embodiment of this practical embodiment, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical embodiment.

[0027] Example: Please refer to Figures 1 to 6 :

[0028] The utility model proposes a multi-stage filtering vacuum cleaner filter screen, comprising: an annular block 1, the bottom end surface of the annular block 1 is welded with a cylinder 103 arranged coaxially therewith, the outer diameter of the cylinder 103 is smaller than the outer diameter of the annular block 1, and the inner diameter of the cylinder 103 is also smaller than the inner diameter of the annular block 1; the outer circumference of the cylinder 103 is provided with eight matching openings 104 connected to the inner circumference thereof in an annular array; the bottom end surface of the cylinder 103 is welded with six snap fasteners a106 in an annular array; a stopper 101 in a circular block structure is provided directly below the cylinder 103, and the stopper The diameter of 101 is consistent with the outer diameter of the annular block 1; the top surface of the stopper 101 is in an annular array with a total of six snap grooves b105, and the six snap grooves b105 are respectively snap-fitted with six snap fasteners a106; the outer circumferential surface of the cylinder 103 is sleeved with an outer filter sleeve 3; the inner circumferential surface of the cylinder 103 is sleeved with an inner filter sleeve 4; the outer filter sleeve 3 adopts a nylon filter mesh, and the outer filter sleeve 3 covers the outer opening end parts of the eight matching openings 104; the inner filter sleeve 4 adopts a nylon filter mesh, and the inner filter sleeve 4 covers the inner opening end parts of the eight matching openings 104.

[0029] In this embodiment, the top surface of the annular block 1 is provided with six snap grooves a102 in a circular array; an annular plate 2 is provided directly above the annular block 1, and the bottom end surface of the annular plate 2 is welded with six snap parts b202 in a circular array, and the six snap parts b202 are respectively snap-fitted with the six snap grooves a102; the inner diameter of the annular plate 2 is consistent with the inner diameter of the annular block 1; a stainless steel filter screen 201 is fixedly installed on the inner circumference of the annular plate 2, and the stainless steel filter screen 201 is designed as a top open structure, and the top surface of the stainless steel filter screen 201 is on the same horizontal plane as the top surface of the annular plate 2.

[0030] The working principle of this embodiment is as follows:

[0031] When the present application is used in conjunction with a vacuum cleaner, the air inhaled by the vacuum cleaner first passes through the inner circumferential surface of the annular plate 2 and enters the stainless steel filter 201. The stainless steel filter 201 intercepts solid impurities of a relatively large volume that may be contained in the air, thereby preventing the solid impurities of a relatively large volume from being damaged by the impact when they come into contact with the subsequent outer filter cover 3 and inner filter cover 4 due to a large impact force, thereby achieving interception protection.

[0032] The air filtered by the stainless steel filter 201 enters the inner circumference of the cylinder 103 and contacts the inner filter sleeve 4 sleeved on the inner circumference of the cylinder 103. The air is filtered for the second time by the inner filter sleeve 4 to filter out a large number of small-sized impurities and hair contained in the air. Then, the air passes through the mesh of the inner filter sleeve 4 and is discharged based on the matching opening 104. At this time, the air will again contact the outer filter sleeve 3 sleeved on the outer circumference of the cylinder 103, and the air is filtered for the third time by the outer filter sleeve 3, thereby filtering out impurities contained in the air to the maximum extent, thereby achieving multi-stage filtration and ensuring the suction power and cleaning effect of the vacuum cleaner.

[0033] When disassembling for cleaning, since the annular block 1 and the annular plate 2 are fixedly mounted by the snap fit of the snap fastener b202 and the snap fastener groove a102, the snap fastener b202 and the snap fastener groove a102 can be separated at this time to simultaneously separate the annular block 1 and the annular plate 2, so as to facilitate cleaning of the impurities intercepted and stored in the stainless steel filter 201;

[0034] The stopper 101 and the cylinder 103 are fixedly installed by the snap fit of the snap groove b105 and the snap piece a106. Therefore, the snap groove b105 and the snap piece a106 can be separated at this time to simultaneously separate the stopper 101 and the cylinder 103, thereby facilitating the removal of the outer filter cover 3 and the inner filter cover 4 from the cylinder 103, so as to facilitate all-round cleaning of the outer filter cover 3 and the inner filter cover 4, and also facilitate cleaning of the cylinder 103 without dead angles, thereby ensuring the cleaning quality.

[0035] In this article, there are several points to note:

[0036] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0037] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0038] The above are only specific implementation methods of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this disclosure, and they should all be covered by the protection scope of the present disclosure.

Claims

1. A multi-stage filtration vacuum cleaner filter, characterized in that: include: An annular block (1), wherein the bottom end surface of the annular block (1) is welded with a cylinder (103) arranged coaxially therewith, the outer diameter of the cylinder (103) is smaller than the outer diameter of the annular block (1), and the inner diameter of the cylinder (103) is also smaller than the inner diameter of the annular block (1); the outer circumference of the cylinder (103) is provided with eight matching openings (104) connected to the inner circumference thereof in an annular array; the bottom end surface of the cylinder (103) is welded with six snap fasteners a (106) in an annular array; A stopper (101) having a circular block structure is provided directly below the cylinder (103), and the diameter of the stopper (101) is consistent with the outer diameter of the annular block (1); the top surface of the stopper (101) is provided with six snap grooves b (105) in an annular array, and the six snap grooves b (105) are snap-fitted with six snap members a (106) respectively; the outer peripheral surface of the cylinder (103) is sleeved with an outer filter screen sleeve (3); and the inner peripheral surface of the cylinder (103) is sleeved with an inner filter screen sleeve (4).

2. A multi-stage filtration vacuum cleaner filter according to claim 1, characterized in that: The outer filter screen sleeve (3) is made of a nylon filter screen, and the outer filter screen sleeve (3) covers the outer opening end portions of the eight matching openings (104).

3. The multi-stage filtration vacuum cleaner filter according to claim 2, characterized in that: The inner filter screen sleeve (4) is made of a nylon filter screen, and the inner filter screen sleeve (4) covers the inner opening end portions of the eight matching openings (104).

4. A multi-stage filtration vacuum cleaner filter according to claim 3, characterized in that: The top surface of the annular block (1) is provided with six snap grooves a (102) in an annular array; an annular plate (2) is provided directly above the annular block (1); the bottom surface of the annular plate (2) is welded with six snap fasteners b (202) in an annular array, and the six snap fasteners b (202) are respectively snap-fitted with the six snap grooves a (102); the inner diameter of the annular plate (2) is consistent with the inner diameter of the annular block (1).

5. The multi-stage filtration vacuum cleaner filter according to claim 4, characterized in that: A stainless steel filter screen (201) is fixedly mounted on the inner circumference of the annular plate (2). The stainless steel filter screen (201) is designed as a top-opening structure, and the top surface of the stainless steel filter screen (201) is in the same horizontal plane as the top surface of the annular plate (2).

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