Filtering structure with filter element capable of being replaced independently

Abstract

The utility model discloses a filter structure with a filter element capable of being replaced independently. The filter structure comprises a filter screen upper cover, a filter screen lower cover and the filter element, the filter screen upper cover can be combined with the filter screen lower cover, and the filter screen upper cover can be completely separated from the filter screen lower cover; after the filter screen upper cover and the filter screen lower cover are combined, the filter element is clamped between the filter screen upper cover and the filter screen lower cover. When the filter element needs to be replaced or cleaned, the filter element can be taken out after the filter screen lower cover is detached, so that the filter element is convenient to replace or clean, and is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of filter element structures, and more specifically to a filter structure in which the filter element can be replaced separately. Background Art

[0002] The handheld vacuum cleaner is provided with a filtering structure, which is mainly used to filter dust, debris, etc., which are collected in a dust cup after filtering, and finally the garbage in the dust cup is centrally processed.

[0003] At present, the filtration structures of fixed filters of most handheld vacuum cleaners on the market are mainly the following two types:

[0004] 1. Filter structure using HEPA as filter element: This filter structure usually consists of three parts: upper cover, HEPA and lower cover. HEPA is glued between the upper cover and the lower cover. Because it is fixed by glue, when the filter element needs to be cleaned or replaced, the entire assembly needs to be cleaned or replaced together. The filter element cannot be cleaned alone, which is difficult to clean. The filter element cannot be replaced alone, which is costly.

[0005] 2. Filter structure that uses filter cotton as the filter element: This structure usually consists of two parts: filter cotton and filter bracket. The filter cotton is glued to the filter bracket with glue. Because it is fixed with glue, when it needs to be cleaned or replaced, the entire assembly is cleaned or replaced together. A single filter element cannot be cleaned or replaced, resulting in a waste of resources and increased costs.

[0006] In view of the above structure, the biggest problem is that the filter element cannot be removed individually, which makes it difficult to clean the filter element, and the filter element cannot be replaced individually, which leads to waste of resources and high costs. Utility Model Content

[0007] In view of this, the utility model provides a filtering structure in which a filter element can be replaced separately. When the filter element needs to be replaced, the filter element can be taken out after the lower cover of the filter screen is removed, so replacement and cleaning are more convenient.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a filter structure capable of replacing a filter element separately, comprising: a filter cover, a filter lower cover and a filter element; the filter cover can be combined with the filter lower cover, and the filter cover can be completely separated from the filter lower cover; after the filter cover is combined with the filter lower cover, the filter element is clamped between the filter cover and the filter lower cover;

[0009] In this technology, when the filter element needs to be replaced or cleaned, the filter element can be taken out after the filter lower cover is removed, which is convenient for replacing or cleaning the filter element and easy to disassemble and assemble.

[0010] As a preferred solution of the utility model, the middle part of the upper cover of the filter screen and the middle part of the lower cover of the filter screen are hollowed out; the middle part of the upper cover of the filter screen is provided with an upper limit bone, and the middle part of the lower cover of the filter screen is provided with a lower limit bone; the filter element is limited between the upper limit bone and the lower limit bone;

[0011] In this technology, the middle part of the upper cover of the filter and the middle part of the lower cover of the filter are hollowed out, and air can flow through the hollowed-out position, while the upper limit bone and the lower limit bone can prevent the filter element from passing through the middle part of the upper cover of the filter and the lower cover of the filter, making the filter element installation more stable.

[0012] As a preferred solution of the present invention, the upper limit bone and the lower limit bone are arched in the same direction in the axial direction.

[0013] As a preferred solution of the utility model, the filter element is in the shape of a thin sheet, and the edge of the filter element is clamped between the filter cover and the filter cover. In this technology, the filter element is in the shape of a thin sheet to facilitate the installation of the filter element between the filter cover and the filter cover.

[0014] As a preferred solution of the utility model, the filter upper cover and the filter lower cover are assembled by any one of threaded connection, snap connection and twist-lock connection, which is convenient for assembly and disassembly, and the filter element can be easily replaced or cleaned after disassembly.

[0015] As a preferred solution of the utility model, the filter upper cover and the filter lower cover are assembled by snap-fitting;

[0016] Between the filter upper cover and the filter lower cover, one is provided with an elastic buckle position, and the other is provided with a buckle portion; here it is specifically defined that the filter upper cover and the filter lower cover are assembled by snap-fitting.

[0017] As a preferred solution of the utility model, the filter element is provided with a through hole, and the elastic buckle passes through the through hole to be connected with the buckle part. In this technology, the elastic buckle passes through the through hole to further limit the filter element.

[0018] As a preferred solution of the utility model, it also includes: a dust cup and a filter cup, the filter cup is assembled in the dust cup, the filter upper cover, the filter lower cover and the filter element are assembled to form a filter element assembly, the filter element assembly is assembled in the filter cup as a whole, the filter cup is used to filter dust and garbage, and the filtered dust and garbage are collected in the dust cup.

[0019] As a preferred solution of the utility model, the filter cover radially protrudes to form a supporting edge; the filter cup forms a supporting step, and the supporting step and the supporting edge are limited to prevent the filter element assembly from being pushed excessively into the dust cup.

[0020] As a preferred solution of the utility model, soft glue is provided on the outer peripheral side of the filter cover, through which the filter cover is tightly connected to the inner wall of the filter cup, and the assembly of the filter element assembly and the dust cup is more stable.

[0021] Other beneficial technical effects of the utility model are embodied in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 It is an exploded view of the filter element assembly in the utility model;

[0024] Figure 2 It is a cross-sectional schematic diagram of the filter element assembly in the utility model;

[0025] Figure 3 It is a schematic diagram of the utility model in which the filter upper cover and the filter lower cover are combined by threaded connection;

[0026] Figure 4 It is a schematic diagram of the utility model in which the filter upper cover and the filter lower cover are combined by means of a snap connection;

[0027] Figure 5 It is a cross-sectional schematic diagram of the filtering structure of the utility model with a detachable and replaceable filter element;

[0028] Figure 6 It is an exploded view of the filter structure of the utility model with a detachable and replaceable filter element;

[0029] Figure 7 for Figure 5 Enlarged view of point A in the middle.

[0030] Description of Reference Numerals

[0031] Filter upper cover 100; screw-on groove 101; upper limit bone 110; handle portion 120; support edge 130; filter lower cover 200; buckle 201; hook portion 2011; elastic buckle position 202; lower limit bone 210; filter element 300; through hole 301; dust cup 400; filter cup 500; filter hole 510; support step 520; air inlet pipe 600; soft rubber 700. DETAILED DESCRIPTION

[0032] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] The filter structure with a filter element that can be replaced separately includes: a filter cover 100, a filter lower cover 200 and a filter element 300; the filter cover 100 can be combined with the filter lower cover 200, and the filter cover 100 can be completely separated from the filter lower cover 200;

[0034] After the filter upper cover 100 and the filter lower cover 200 are combined, the filter element 300 is clamped between the filter upper cover 100 and the filter lower cover 200;

[0035] After the filter upper cover 100 is separated from the filter lower cover 200, the filter element 300 can be taken out, which is convenient for replacing the filter element 300 or cleaning the filter element 300.

[0036] In this embodiment, the filter upper cover 100, the filter lower cover 200 and the filter element 300 are designed as three independent parts. If any one of the filter upper cover 100 and the filter lower cover 200 is damaged, it can be replaced separately, saving materials and reducing costs; the filter element 300 can be replaced or cleaned separately, which also reduces costs.

[0037] Furthermore, when removing the filter element 300, it is only necessary to remove the filter lower cover 200 relative to the filter upper cover 100, and the disassembly and assembly are very convenient.

[0038] The filter upper cover 100, the filter lower cover 200 and the filter element 300 are combined to form a filter element assembly.

[0039] In one embodiment, if Figure 1-2 As shown, the middle part of the filter upper cover 100 is hollowed out, and an upper limit bone 110 is set in the middle part of the filter upper cover 100. The upper limit bone 110 can prevent the filter element 300 from passing through the hollow part of the filter upper cover 100; the middle part of the filter lower cover 200 is also hollowed out, and a lower limit bone 210 is set in the middle part of the filter lower cover 200. The lower limit bone 210 can prevent the filter element 300 from passing through the hollow part of the filter lower cover 200; the filter element 300 can be stably restricted between the filter upper cover 100 and the filter lower cover 200, and the air flows through the filter element 300 and is filtered.

[0040] like Figure 2 As shown, the edge of the filter element 300 is clamped between the filter cover 100 and the filter cover 200 to prevent the filter element 300 from moving under the push of the airflow or being partially blown out from the hollow part, which affects the filtering effect;

[0041] Furthermore, the upper limit bone 110 and the lower limit bone 210 are arched in the same direction in the axial direction; Figure 2As shown, the upper limit bone 110 and the lower limit bone 210 are arched upward, and the filter element 300 can be set to be arched upward. Compared with the horizontally set filter element, the overall filtering area of ​​the filter element 300 can be increased and the filtering effect can be enhanced.

[0042] Optionally, the edge of the filter element 300 is clamped between the filter upper cover 100 and the filter lower cover 200, and the middle of the filter element can also be clamped between the upper limit bone 110 and the lower limit bone 210;

[0043] Furthermore, the filter element 300 is in the shape of a thin sheet, and the edge of the filter element 300 is clamped between the filter cover 100 and the filter cover 200, and the upper limit bone 110 and the lower limit bone 210 provide a certain support for the filter element 300.

[0044] Furthermore, if Figure 1-2 As shown, a handle portion 120 is also provided in the middle of the filter upper cover 100 , and the handle portion 120 is used to facilitate the installation of the entire filter element assembly on the filter cup 400 or removal from the filter cup 500 .

[0045] In one embodiment, the filter upper cover 100 and the filter lower cover 200 are assembled by any one of threaded connection, snap connection, and twist-on connection. These assembly methods are simple, convenient, and quick.

[0046] like Figure 1 As shown, the filter upper cover 100 and the filter lower cover 200 are assembled by a screw connection method, the filter upper cover 100 is provided with a screw groove 101, the filter lower cover 200 is provided with a buckle 201, and the number of the screw groove 101 and the buckle 201 are both three;

[0047] Continue as Figure 1 As shown, a hook portion 2011 is provided on the top of the buckle 201. After the buckle 201 passes through the screw groove 101 and rotates at a certain angle, the hook portion 2011 abuts against a surface of the filter cover 100, so that the filter cover 100 and the filter lower cover 200 are locked;

[0048] The filter element 300 is provided with a through hole 301, and the buckle 201 passes through the through hole 301 and is connected to the screw buckle groove 101, so that the filter element 300 is installed more stably, ensuring that the filter element 300 cannot rotate between the filter upper cover 100 and the filter lower cover 200.

[0049] like Figure 3 As shown, the filter upper cover 100 and the filter lower cover 200 are assembled by threaded connection. The filter upper cover 100 is provided with an internal thread (not shown in the figure), and the filter lower cover 200 is provided with an external thread. During assembly, the filter lower cover 200 is threadedly screwed into the filter upper cover 100.

[0050] like Figure 4As shown, the filter upper cover 100 and the filter lower cover 200 are assembled by means of a snap connection; the filter upper cover 100 is provided with a buckle portion (not shown in the figure), and the filter lower cover 200 is provided with an elastic buckle position 202, and the opening provided on the elastic buckle position forms a buckle groove. When the filter upper cover 100 and the filter lower cover 200 are combined, the elastic buckle position 202 can be deformed until the buckle portion is buckled in the buckle groove of the elastic buckle position 202.

[0051] The filter element 300 is provided with a through hole 301, and the elastic buckle 202 passes through the through hole 301 and is connected to the buckle part, so that the filter element 300 is installed more stably, ensuring that the filter element 300 cannot rotate between the filter upper cover 100 and the filter lower cover 200.

[0052] The above three methods can all accomplish the quick disassembly and assembly between the filter upper cover 100 and the filter lower cover 200.

[0053] In one embodiment, if Figure 5-6 As shown, the filtering structure with a separately replaceable filter element also includes: a dust cup 400 and a filter cup 500, the filter cup 500 is assembled in the dust cup 400, the filter upper cover 100, the filter lower cover 200 and the filter element 300 are assembled to form a filter element assembly, and the filter element assembly is assembled as a whole in the filter cup 500.

[0054] Continue as Figure 6 As shown, the dust cup 400 is cup-shaped and is mainly used to collect dust, garbage, etc. The filter cup 500 is assembled in the dust cup 400, and the filter cup 500 is provided with a filter hole 510; and, the filter cup 500 is also provided with an air inlet pipe 600.

[0055] like Figure 5 and Figure 7 As shown, the filter element assembly is integrally assembled at the opening at the top of the filter cup 500; the filter upper cover 100 radially protrudes to form a support edge 130, and the overall diameter of the filter upper cover 100 is greater than the diameter of the filter lower cover 200;

[0056] The filter cup 500 forms a support step 520 , which is limited by the support edge 130 , thereby preventing the filter element assembly from being excessively pushed into the filter cup 500 .

[0057] Furthermore, the outer peripheral side of the filter upper cover 100 is coated with soft glue 700, and the filter upper cover 100 is tightly connected to the inner wall of the filter cup 500 through the soft glue 700, so as to prevent the filter element assembly from falling from the filter cup 500 and make the installation more stable.

[0058] At the same time, the soft glue 700 also plays a sealing role to a certain extent.

[0059] Continue as Figure 5 As shown, when the filter element assembly is removed, the filter element assembly can be pulled out by applying force through the handle portion 120.

[0060] Similarly, the dust cup 400 may also be designed with a support step, and the filter cup 500 may also be designed with a support edge, so that the filter cup 500 can be stably assembled in the dust cup 400 and prevent the filter cup 500 from being pushed excessively into the dust cup 400.

[0061] Optionally, after the filter element assembly is installed in the filter cup 500, the filter cup 500 is installed in the dust cup 400. If there is no relevant limiting structure between the filter cup 500 and the dust cup 400, the filter cup 500 is only placed in the dust cup 400. When the filter element assembly is pulled out by applying force through the handle 120, the filter cup 500 and the filter element assembly are pulled out from the dust cup 400 at the same time, which is convenient for cleaning the dust and garbage in the dust cup 400; then the filter element assembly is taken out from the filter cup 500.

[0062] The filtering structure of the utility model with replaceable filter elements is mainly used in handheld vacuum cleaners. When replacing the filter element 300, the filter lower cover 200 is removed, and the filter element 300 is replaced separately or the filter element 300 is cleaned, which can reduce waste of resources and reduce costs. In addition, according to user needs or different applicable environments, filter elements with different performances can be replaced at any time to adapt to different working environments and enhance the user experience.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The filter element can be replaced separately, characterized by: include: A filter upper cover, a filter lower cover and a filter element; the filter upper cover can be combined with the filter lower cover, and the filter upper cover can be completely separated from the filter lower cover; after the filter upper cover and the filter lower cover are combined, the filter element is clamped between the filter upper cover and the filter lower cover.

2. The filter structure with a separately replaceable filter element according to claim 1, characterized in that: The middle part of the filter upper cover and the middle part of the filter lower cover are hollowed out; the middle part of the filter upper cover is provided with an upper limit bone, and the middle part of the filter lower cover is provided with a lower limit bone; the filter element is restricted between the upper limit bone and the lower limit bone.

3. The filter structure with a separately replaceable filter element according to claim 2, characterized in that: The upper limit bone and the lower limit bone are arched in the same direction in the axial direction.

4. The filter structure with a separately replaceable filter element according to claim 2, characterized in that: The filter element is in the shape of a thin sheet, and the edge of the filter element is clamped between the filter screen upper cover and the filter screen lower cover.

5. The filter structure with a separately replaceable filter element according to any one of claims 1 to 4, characterized in that: The filter upper cover and the filter lower cover are assembled by any one of threaded connection, snap connection and twist connection.

6. The filter structure with a separately replaceable filter element according to claim 5, characterized in that: The filter upper cover and the filter lower cover are assembled by snap-fitting; Between the filter upper cover and the filter lower cover, one is provided with an elastic buckle position, and the other is provided with a buckle portion.

7. The filter structure with a separately replaceable filter element according to claim 6, characterized in that: The filter element is provided with a through hole, and the elastic buckle passes through the through hole and is connected with the buckle part.

8. The filter structure with a separately replaceable filter element according to claim 5, characterized in that: Also includes: The dust cup and the filter cup, the filter cup is assembled in the dust cup, and the filter upper cover, filter lower cover and filter element are assembled and assembled in the filter cup as a whole.

9. The filter structure with a separately replaceable filter element according to claim 8, characterized in that: The filter cover radially protrudes to form a supporting edge; the filter cup forms a supporting step, and the supporting step is limited to the supporting edge.

10. The filter structure with a separately replaceable filter element according to claim 9, characterized in that: The outer peripheral side of the filter cover is provided with soft glue, and the filter cover is tightly connected to the inner wall of the filter cup through the soft glue.

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