A front wheel assembly for a vacuum cleaner

Abstract

The application provides a front wheel assembly of a dust collector, which comprises a front wheel shaft (3), a wheel hub (1) and soft rubber (4), the front wheel shaft (3) penetrates the wheel hub (1) along the axial direction of the wheel hub (1); the outer wall of the wheel hub (1) is wrapped with the soft rubber (4); the wheel hub (1) is internally provided with a coaxial annular cavity (2), and the soft rubber (4) comprises an isolated soft rubber part (8) which extends and fills into the annular cavity (2) and abuts against the front wheel shaft (3). The front wheel assembly of the dust collector provided by the application reduces the running noise of the front wheel structure fundamentally through the collision between the soft rubber hub and the front wheel shaft.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a front wheel assembly for a vacuum cleaner. Background Technology

[0002] Noise control in vacuum cleaners is key to improving the user experience. Current technology generally uses a structure with a thin layer of soft rubber covering the wheel hub. Relying solely on the outer layer of soft rubber for vibration damping, the front axle is in direct contact with the wheel hub. This not only causes impact noise on bumpy roads but also produces sharp friction sounds, resulting in significant noise defects.

[0003] Therefore, a front wheel structure is needed that can isolate the axle hub from the front wheel axle and fundamentally reduce running noise. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of this, this application provides a front wheel assembly for a vacuum cleaner, which fundamentally reduces operating noise by setting a soft rubber to isolate the axle hub from collision with the front wheel axle.

[0006] (II) Technical Solution

[0007] The embodiments in this specification provide the following technical solutions:

[0008] A front wheel assembly for a vacuum cleaner includes a front wheel axle, a hub, and a soft rubber, wherein the front wheel axle extends along the axis of the hub; the outer wall of the hub is covered with soft rubber; a coaxial annular cavity is provided inside the hub, and the soft rubber includes an insulating soft rubber portion that extends and fills the annular cavity and abuts against the front wheel axle.

[0009] In the above technical solution, the annular cavity inside the wheel hub is filled with soft rubber, which can effectively reduce noise.

[0010] Furthermore, a soft rubber fixing groove is provided at the upper end of the outer wall of the wheel hub, and the soft rubber fixing groove is formed by the inward indentation of the upper outer wall of the wheel hub.

[0011] In the above technical solution, the soft rubber fixing groove is used to fix the soft rubber wrapped around the outer wall of the wheel hub.

[0012] Furthermore, a soft rubber fixing groove is provided at the lower end of the outer wall of the wheel hub, and the soft rubber fixing groove is formed by the inward indentation of the lower end of the outer wall of the wheel hub.

[0013] In the above technical solution, the soft rubber fixing groove is used to fix the soft rubber wrapped around the outer wall of the wheel hub.

[0014] Furthermore, the soft rubber fixing grooves are evenly arranged around the axis of the wheel hub on the upper end of the outer wall of the wheel hub, and multiple soft rubber fixing grooves are provided.

[0015] In the above technical solution, the multiple soft rubber fixing grooves better fix the soft rubber wrapped around the outside of the wheel hub.

[0016] Furthermore, the soft rubber fixing grooves are evenly arranged around the axis of the wheel hub at the lower end of the outer wall of the wheel hub, and multiple soft rubber fixing grooves are provided.

[0017] In the above technical solution, the multiple soft rubber fixing grooves better fix the soft rubber wrapped around the outside of the wheel hub.

[0018] Furthermore, an upper partition wall is formed between the two soft rubber fixing grooves of the wheel hub.

[0019] Furthermore, a lower partition wall is formed between the two soft rubber fixing short grooves of the wheel hub.

[0020] Furthermore, the wheel hub includes a soft rubber channel that extends from the bottom surface of the soft rubber fixing groove into an annular cavity.

[0021] In the above technical solution, the soft rubber extends into the annular cavity through the soft rubber channel, thereby filling the annular cavity.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least:

[0024] 1. The soft rubber of this utility model includes an insulating soft rubber part that extends and fills the annular cavity and abuts against the front wheel axle. The insulating soft rubber part wraps around the front wheel axle to isolate the hub from rigid collision and suppress abnormal noise.

[0025] 2. The lower end of the wheel hub of the present invention is provided with a soft rubber channel that runs horizontally through the wheel hub. This soft rubber channel realizes the integral injection molding of soft rubber between the outer wall of the wheel hub and the annular cavity inside the wheel hub. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0028] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the wheel hub structure according to an embodiment of the present utility model;

[0030] Figure 4 This is a cross-sectional view of the wheel hub according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the soft adhesive in an embodiment of the present invention;

[0032] Figure 6 This is a cross-sectional view of the soft adhesive according to an embodiment of the present invention.

[0033] Wherein: 1-hub, 2-annular cavity, 3-front axle, 4-soft rubber, 5-soft rubber fixing short groove, 6-partition wall, 7-soft rubber channel, 8-isolated soft rubber part, 9-soft rubber fixing long groove. Detailed Implementation

[0034] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0035] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0037] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0039] Combination Figures 1-6 As shown, this application provides a front wheel assembly for a vacuum cleaner, including a front wheel axle 3, a hub 1, and a soft rubber 4. The front wheel axle 3 extends along the axis of the hub 1. The outer wall of the hub 1 is covered with soft rubber 4. A coaxial annular cavity 2 is provided inside the hub 1, and the axial length of the annular cavity 2 is half the axial length of the hub 1. The soft rubber 4 includes an insulating soft rubber portion 8 that extends and fills the annular cavity 2 and abuts against the front wheel axle 3.

[0040] A long, soft rubber fixing groove 9 is provided on the upper end of the outer wall of the hub 1, and the long, soft rubber fixing groove 9 is formed by an inward indentation of the upper outer wall of the hub 1. A short, soft rubber fixing groove 5 is provided on the lower end of the outer wall of the hub 1, and the short, soft rubber fixing groove 5 is formed by an inward indentation of the lower outer wall of the hub 1. The long, soft rubber fixing grooves 9 are evenly arranged around the axis of the hub 1 on the upper end of the outer wall of the hub 1, and multiple long, soft rubber fixing grooves 9 are provided. The short, soft rubber fixing grooves 5 are evenly arranged around the axis of the hub 1 on the lower end of the outer wall of the hub 1, and multiple short, soft rubber fixing grooves 5 are provided; the extension length of the short, soft rubber fixing grooves 5 is shorter than that of the long, soft rubber fixing grooves 9. An upper partition wall 6 is formed between two long, soft rubber fixing grooves 9 of the hub 1. A lower partition wall 6 is formed between two short, soft rubber fixing grooves 5 of the hub 1. The hub 1 includes a soft rubber channel 7, which extends from the bottom surface of the long, soft rubber fixing groove 9 into the annular cavity 2.

[0041] The soft rubber 4 of this invention is fixed to the outer wall of the wheel hub 1 through the soft rubber fixing short groove 5 and the soft rubber fixing long groove 9. The soft rubber 4 then enters the annular cavity 2 through the soft rubber channel 7 set in the wheel hub 1, so that it can wrap around the front wheel axle 3, avoiding the noise generated when there is a gap between the wheel hub 1 and the front wheel axle 3.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A front wheel assembly for a vacuum cleaner, characterized in that, It includes a front axle (3), a hub (1), and a soft rubber (4); the front axle (3) passes through the axis of the hub (1); the outer wall of the hub (1) is covered with soft rubber (4); the hub (1) has an annular cavity (2) surrounding the front axle, and the soft rubber (4) includes an insulating soft rubber portion (8) that extends into the annular cavity (2) and abuts against the front axle (3).

2. The front wheel assembly of a vacuum cleaner according to claim 1, characterized in that, The upper end of the outer wall of the hub (1) is provided with a soft rubber fixing groove (9), which is formed by the inward indentation of the upper outer wall of the hub (1).

3. The front wheel assembly of a vacuum cleaner according to claim 1, characterized in that, The lower end of the outer wall of the hub (1) is provided with a soft rubber fixing groove (5), which is formed by the inward indentation of the lower end of the outer wall of the hub (1).

4. The front wheel assembly of a vacuum cleaner according to claim 2, characterized in that, The soft rubber fixing groove (9) is evenly arranged around the axis of the hub (1) on the upper end of the outer wall of the hub (1), and multiple soft rubber fixing grooves (9) are provided.

5. The front wheel assembly of a vacuum cleaner according to claim 3, characterized in that, The soft rubber fixing grooves (5) are evenly arranged around the axis of the hub (1) at the lower end of the outer wall of the hub (1), and multiple soft rubber fixing grooves (5) are provided.

6. The front wheel assembly of a vacuum cleaner according to claim 4, characterized in that, An upper partition wall (6) is formed between the two soft rubber fixing grooves (9) of the hub (1).

7. The front wheel assembly of a vacuum cleaner according to claim 5, characterized in that, A lower partition wall (6) is formed between the two soft rubber fixing short grooves (5) of the hub (1).

8. The front wheel assembly of a vacuum cleaner according to claim 4, characterized in that, The hub (1) includes a soft rubber channel (7) that extends from the bottom surface of the soft rubber fixing groove (9) into the annular cavity (2).

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