Mounting structure and vacuum cleaner

Abstract

The present invention provides a mounting structure and a vacuum cleaner. The mounting structure includes a base, a connecting column, and support ribs. The connecting column is disposed on the base, and the outer wall of the connecting column is configured to interference fit with the inner ring of the bearing to be assembled. The support ribs are disposed on the base, connected to the connecting column, and have a support surface configured to support the inner ring. There are multiple support ribs, and the multiple support ribs are disposed around the connecting column. With this solution, the connecting column can be reliably connected to the bearing by an interference fit, eliminating the need for fasteners such as screws during assembly. The bearing can be supported and axially limited by the multiple support ribs. Compared to the prior art, this mounting structure does not require screws or inserts, thereby reducing costs and facilitating assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing assembly, and in particular to a mounting structure and a dust collector. Background Art

[0002] Vacuum cleaners of all styles are available on the market, and nearly all have a roller brush to enhance cleaning performance. Because the roller brush rotates, the end cap (the structure that mates with the roller brush) or the structure that mates with it often incorporates a rotating structure, such as a bearing. Bearings are typically assembled using insert molding (a metal part is embedded in the end cap or the structure that mates with the roller brush to mate with the bearing), or by providing a clearance fit in the end cap and securing the bearing with screws.

[0003] However, this is not convenient and simple enough, resulting in an increase in cost. Therefore, it is necessary to design a bearing installation structure that is convenient for assembly and can meet the requirements of use. Summary of the Invention

[0004] The present invention provides a mounting structure and a dust collector to reduce costs and facilitate bearing assembly.

[0005] To achieve the above objectives, according to one aspect of the present invention, there is provided a mounting structure comprising: a base; a connecting post disposed on the base, the outer wall of the connecting post being configured to achieve an interference fit with the inner ring of the bearing to be assembled; and a supporting rib disposed on the base, the rib being connected to the connecting post and having a supporting surface configured to support the inner ring; a plurality of supporting ribs disposed around the connecting post, wherein the outer diameter of the connecting post is greater than the inner diameter of the inner ring.

[0006] Furthermore, the outer wall of the connecting column has multiple grooves distributed along its circumference. The bottoms of the grooves are connected to the support ribs in a one-to-one correspondence. This arrangement facilitates fitting the bearing sleeve onto the connecting column. Furthermore, the one-to-one correspondence between the bottoms of the grooves and the support ribs reduces stress concentration at the connection, improves strength, and prevents fracture of the connecting column.

[0007] Furthermore, a first transition fillet is provided at the connection between the bottom of the groove and the top of the support rib, which can further reduce stress concentration and improve the reliability of the mounting structure.

[0008] Furthermore, the upper end of the connecting column has a chamfer, which makes it easier to put the bearing on the connecting column.

[0009] Furthermore, in the axial direction of the connecting column, the connection between the connecting column and the side surface of the supporting rib has a second transition fillet. By providing the second transition fillet, stress concentration can be reduced and the strength of the mounting structure can be improved.

[0010] Furthermore, the mounting structure is an integrally formed structure. Specifically, the mounting structure is made by injection molding, which is easy to manufacture and low in cost.

[0011] Furthermore, the connecting column is a hollow structure. This saves material and allows the connecting column to elastically deform in the radial direction when the bearing is mounted on the connecting column, facilitating bearing assembly.

[0012] Furthermore, the base has a receiving cavity, and the connecting column and the supporting rib are both located in the receiving cavity.

[0013] According to another aspect of the present invention, a vacuum cleaner is provided, comprising the above-mentioned mounting structure.

[0014] Furthermore, the vacuum cleaner also includes a bearing and a roller brush, the inner ring of the bearing cooperates with the mounting structure, and the outer ring of the bearing cooperates with the roller brush.

[0015] The technical solution of the present invention provides a mounting structure comprising a base, a connecting post, and support ribs. The connecting post is disposed on the base, and the outer wall of the connecting post is configured to achieve an interference fit with the inner ring of the bearing to be assembled. The support ribs are disposed on the base and connected to the connecting post. The support ribs have a support surface configured to support the inner ring. Multiple support ribs are provided, and the multiple support ribs are arranged around the connecting post. Using this solution, the connecting post can be securely connected to the bearing through an interference fit, eliminating the need for fasteners such as screws during assembly. The bearing can be supported and axially limited by the multiple support ribs. Compared to the prior art, this mounting structure eliminates the need for screws and inserts, thereby reducing costs and facilitating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 A schematic diagram showing an installation structure provided by an embodiment of the present invention is shown;

[0018] Figure 2 Shown Figure 1 A partial enlarged view of the installation structure;

[0019] Figure 3 Shown Figure 1The installation structure and bearing assembly drawing in;

[0020] Figure 4 Shown Figure 3 sectional view of .

[0021] The above drawings include the following reference numerals:

[0022] 10. Base; 20. Connecting column; 21. Groove; 22. First transition fillet; 23. Chamfer; 24. Second transition fillet; 30. Support rib; 31. Support surface; 40. Bearing. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, an embodiment of the present invention provides a mounting structure, comprising: a base 10; a connecting post 20 disposed on the base 10, the outer wall of which is configured to interference fit with the inner ring of the bearing 40 to be assembled; a support rib 30 disposed on the base 10, the support rib 30 being connected to the connecting post 20, the support rib 30 having a support surface 31 for supporting the inner ring; a plurality of support ribs 30, each disposed around the connecting post 20. The outer diameter of the connecting post 20 is greater than the inner diameter of the inner ring.

[0025] With this solution, the connecting column 20 securely connects to the bearing through an interference fit, eliminating the need for screws or other fasteners during assembly. Multiple support ribs 30 support and axially limit the bearing. Compared to existing technologies, this mounting structure eliminates the need for screws and inserts, reducing costs and facilitating assembly.

[0026] In this embodiment, the outer wall of the connecting column 20 has multiple grooves 21 distributed along the circumference of the connecting column 20. The bottoms of the grooves 21 are connected to the support ribs 30 in a one-to-one correspondence. Providing multiple grooves 21 facilitates fitting the bearing sleeve onto the connecting column 20. Furthermore, the one-to-one correspondence between the bottoms of the grooves 21 and the support ribs 30 reduces stress concentration at the connection, improves strength, and prevents breakage of the connecting column 20.

[0027] Furthermore, a first transition fillet 22 is provided at the connection between the bottom of the groove 21 and the top of the support rib 30. The first transition fillet 22 can further reduce stress concentration and improve the reliability of the mounting structure.

[0028] In this embodiment, the upper end of the connecting column 20 has a chamfer 23. The chamfer 23 is provided to facilitate the installation of the bearing sleeve on the connecting column 20.

[0029] In this embodiment, in the axial direction of the connecting column 20, the connection between the connecting column 20 and the side surface of the supporting rib 30 has a second transition fillet 24. By providing the second transition fillet 24, stress concentration can be reduced and the strength of the mounting structure can be improved.

[0030] In this embodiment, the mounting structure is an integrally formed structure. Specifically, the mounting structure is made by injection molding, which is easy to manufacture and low in cost.

[0031] In this embodiment, the connecting column 20 is a hollow structure. The hollow structure can save materials. Moreover, when the bearing is sleeved on the connecting column 20, the connecting column 20 can undergo elastic deformation in the radial direction, which is convenient for assembling the bearing.

[0032] Furthermore, the base 10 has a receiving cavity, and the connecting column 20 and the supporting rib 30 are both located in the receiving cavity.

[0033] In the above solution, by replacing the flat support bearing with a support rib, the risk of stress concentration at the intersection of the bearing assembly position and the support plane is eliminated; a groove is provided at the junction of the bearing assembly position and the support rib to facilitate a rounded transition and eliminate stress concentration; the outer wall of the connecting column and the bearing are designed to be an interference fit, avoiding the need for additional screw fixation, simplifying the design, facilitating assembly, saving screws, and saving costs.

[0034] Another embodiment of the present invention provides a vacuum cleaner including the aforementioned mounting structure. Using this solution, the connecting post 20 securely connects to the bearing through an interference fit, eliminating the need for screws or other fasteners during assembly. Multiple support ribs 30 support and axially limit the bearing. Compared to existing technologies, this mounting structure eliminates the need for screws and inserts, thereby reducing costs and facilitating assembly.

[0035] Furthermore, the vacuum cleaner also includes a bearing and a roller brush, the inner ring of the bearing cooperates with the mounting structure, and the outer ring of the bearing cooperates with the roller brush.

[0036] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0039] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

Claims

1. A mounting structure, characterized in that: include: substrate (10); A connecting column (20) is provided on the base (10), wherein the outer wall of the connecting column (20) is used for interference fit with the inner ring of the bearing to be assembled; A support rib (30) is provided on the base (10), the support rib (30) is connected to the connecting column (20), the support rib (30) has a support surface (31), and the support surface (31) is used to support the inner ring; there are multiple support ribs (30), and the multiple support ribs (30) are arranged around the connecting column (20); The outer wall of the connecting column (20) is provided with a plurality of grooves (21), and the plurality of grooves (21) are distributed along the circumference of the connecting column (20), wherein the groove bottoms of the plurality of grooves (21) and the plurality of supporting ribs (30) are connected in a one-to-one correspondence.

2. The mounting structure according to claim 1, wherein: A first transition fillet (22) is provided at the connection between the bottom of the groove (21) and the top of the support rib (30).

3. The mounting structure according to claim 1, wherein: The upper end of the connecting column (20) has a chamfer (23).

4. The mounting structure according to claim 1, wherein: In the axial direction of the connecting column (20), a connection between the connecting column (20) and the side surface of the supporting rib (30) has a second transition fillet (24).

5. The mounting structure according to claim 1, wherein: The mounting structure is an integrally formed structure.

6. The mounting structure according to claim 1, wherein: The connecting column (20) is a hollow structure.

7. The mounting structure according to claim 1, wherein: The base (10) has a receiving cavity, and the connecting column (20) and the supporting rib (30) are both located in the receiving cavity.

8. A vacuum cleaner, characterized in that: The vacuum cleaner includes the mounting structure according to any one of claims 1 to 7.

9. The vacuum cleaner according to claim 8, characterized in that The vacuum cleaner further comprises a bearing and a roller brush, wherein the inner ring of the bearing cooperates with the mounting structure, and the outer ring of the bearing cooperates with the roller brush.

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