Barrel cover assembly and dust collector

Abstract

The barrel cover assembly comprises an upper cover, a lower cover and a draught fan, the draught fan is installed between the upper cover and the lower cover, the top wall of the upper cover is provided with an air outlet duct formed by extending towards the direction of the lower cover, the cross section of the columnar air outlet duct is in a C shape, and the air outlet duct is arranged in the lower cover. An air guide part, arc-shaped guide plates and an air outlet are arranged on the inner side wall of the upper cover, the air guide part is arranged in the middle of a first lateral notch of the air outlet duct, and airflow exhausted by the fan flows through the air outlet duct towards the first lateral notch, is drained by the arc-shaped guide plates on the two sides of the air guide part and is exhausted from the air outlet. According to the barrel cover assembly, the C-shaped air outlet channel and the arc-shaped guide plate are arranged, airflow is effectively guided and dispersed, an exhaust path is smoothed, and noise generated when a draught fan operates is remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaner components, and more specifically, to a bucket cover assembly and a vacuum cleaner. Background Art

[0002] During the operation of a vacuum cleaner, the fan is a key driving device. The fan generates a strong airflow by rotating at high speed. This airflow sucks in air and dust through the air inlet of the vacuum cleaner and forms a certain degree of vacuum environment in the dust collection bucket, thereby effectively capturing dust and debris. However, when the fan of a traditional vacuum cleaner is running, since the airflow generated by the fan directly discharges from the air outlet, significant noise problems are caused. These noises not only reduce the user's comfort during use, but also may pose potential hazards to the hearing of long-term users. Summary of the Invention

[0003] The utility model aims to solve one of the technical problems in the related technologies to a certain extent. For this purpose, the utility model provides a bucket cover assembly, which effectively guides and disperses the airflow by setting a C-shaped air outlet duct and an arc-shaped guide plate, smooths the discharge path, and significantly reduces the noise generated during the operation of the fan.

[0004] The technical solution adopted by the utility model is as follows: A bucket cover assembly is provided, which includes an upper cover, a lower cover and a fan. The fan is installed between the upper cover and the lower cover. The top wall of the upper cover has an air outlet duct extending towards the lower cover. The cross-section of the columnar air outlet duct is C-shaped. The inner side wall of the upper cover has a wind guiding part, an arc-shaped guide plate and an air outlet. The wind guiding part is centered at the first side notch of the air outlet duct. The airflow discharged by the fan flows through the air outlet duct towards the first side notch, and after being guided by the arc-shaped guide plates on both sides of the wind guiding part, it is discharged from the air outlet.

[0005] After adopting the above structure, the utility model can effectively reduce the noise generated during the operation of the fan. By setting a C-shaped air outlet duct and an arc-shaped guide plate in the bucket cover assembly, the airflow is effectively guided and dispersed before being discharged, thereby avoiding the noise problem caused by the direct high-speed discharge of the airflow from the air outlet. The design of the arc-shaped guide plate further smooths the path of the airflow, makes the discharge of the airflow more uniform and stable, and reduces the noise caused by eddy currents and airflow impacts.

[0006] According to an embodiment of the present utility model, baffles are provided in pairs between the outer sidewall of the air outlet duct and the inner sidewall of the upper cover. The air outlet duct, the upper cover, the baffles, and the arc-shaped guide plate form a drainage air duct in combination. The baffles cooperate with the outer sidewall of the air outlet duct and the inner sidewall of the upper cover to form a multi-level drainage structure, so that the air flow discharged by the fan passes through multiple curved paths before entering the air outlet, thereby further slowing down the air flow speed and reducing the generation of noise. Through this combined design, the air flow is fully guided and buffered before being discharged, reducing the direct impact force of the air flow and effectively reducing the resonance noise caused by the high-speed passage of the air flow through a narrow channel.

[0007] According to an embodiment of the present utility model, the air outlet is arranged adjacent to the baffle.

[0008] According to an embodiment of the present utility model, a first sound insulation cotton is installed on the inner sidewall of the upper cover. The first sound insulation cotton adheres to the surface of the inner sidewall of the upper cover, aiming to further absorb and attenuate the noise generated during the operation of the fan. The sound insulation cotton effectively captures and scatters sound waves through its porous structure, converting a part of the sound energy into heat energy, thereby significantly reducing the propagation of noise.

[0009] According to an embodiment of the present utility model, a second sound insulation cotton is installed on the inner sidewall of the air outlet duct. It cooperates with the first sound insulation cotton to further control the noise of the air flow discharged by the fan. The second sound insulation cotton can effectively absorb the high-frequency noise caused by the air flow and reduce the friction sound between the air flow and the inner wall of the air duct at the same time.

[0010] According to an embodiment of the present utility model, the first sound insulation cotton has a second lateral notch, and the orientation of the second lateral notch is opposite to that of the first lateral notch.

[0011] According to an embodiment of the present utility model, the lower cover is provided with a safety protection valve, and the safety protection valve is used to connect or separate the upper and lower sides of the lower cover. When the vacuum degree at the bottom of the lower cover exceeds the threshold value, the safety protection valve switches from the closed state to the open state. The safety protection valve is used to monitor and adjust the vacuum degree in the lower cover. When the vacuum degree at the bottom of the lower cover exceeds the preset safety threshold value, the safety protection valve automatically switches from the closed state to the open state, quickly connecting the upper and lower sides of the lower cover, thereby releasing the excess vacuum pressure and preventing the vacuum cleaner from being damaged or malfunctioning due to excessive vacuum degree. When the vacuum degree returns to the safe range, the safety protection valve will automatically reset to the closed state and restore the normal sealing function.

[0012] According to an embodiment of the present utility model, the safety protection valve is arranged at the position of the second lateral notch.

[0013] According to an embodiment of the present utility model, the lower cover has a plurality of air outlet guide plates arranged in parallel. When the upper cover is connected to the lower cover, the air outlet guide plates are located inside the air outlet; after the plurality of air outlet guide plates arranged in parallel on the lower cover are connected to the upper cover, they are precisely located in the inner area of the air outlet. The design of the air outlet guide plates is intended to further optimize the air flow discharge path, so that the air flow can be effectively split when passing through the air outlet, reducing the generation of turbulence. The parallel air outlet guide plates divide the large-volume high-speed air flow into multiple small air flows by separating the air flow, thereby reducing the air flow discharge speed at the air outlet, weakening the impact force of the air flow, and further reducing the generation of noise.

[0014] A vacuum cleaner includes a dust collection bucket and the bucket cover assembly described in any one of the above. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a three-dimensional view of the vacuum cleaner in the embodiment of the present utility model;

[0017] Figure 2 It is a three-dimensional view of the bucket cover assembly in the embodiment of the present utility model;

[0018] Figure 3 It is an exploded view of the bucket cover assembly in the embodiment of the present utility model;

[0019] Figure 4 It is a structural schematic diagram of the upper cover in the embodiment of the present utility model;

[0020] Figure 5 It is a three-dimensional view of the upper cover in the embodiment of the present utility model;

[0021] Figure 6 It is a three-dimensional view of the bucket cover assembly after removing the upper cover in the embodiment of the present utility model;

[0022] Figure 7 It is a structural schematic diagram of the bucket cover assembly after removing the upper cover in the embodiment of the present utility model;

[0023] Figure 8 It is a three-dimensional view of the lower cover in the embodiment of the present utility model;

[0024] Figure 9 It is a three-dimensional view of the first sound insulation cotton in the embodiment of the present utility model;

[0025] Figure 10 This is a three-dimensional view of the second sound insulation cotton in the embodiment of the present utility model.

[0026] Description of the reference numerals in the figure:

[0027] 10. Bucket cover assembly; 20. Dust collection bucket;

[0028] 11. Handle; 12. Upper cover; 13. Lower cover; 14. First sound insulation cotton; 15. Second sound insulation cotton; 16. Fan; 17. Safety protection valve; 18. Air outlet;

[0029] 12a. Air outlet duct; 12b. Air guiding part; 12c. Arc-shaped guide plate; 12d. Baffle;

[0030] 13a. Air outlet guide plate; 13b. Air inlet. Detailed implementation manners

[0031] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. Embodiment 1

[0032] As Figure 2-10 shown, in this embodiment, a bucket cover assembly 10 is disclosed, which includes an upper cover 12, a lower cover 13 and a fan 16. The fan 16 is installed between the upper cover 12 and the lower cover 13. The top wall of the upper cover 12 has an air outlet duct 12a extending towards the lower cover 13. The columnar air outlet duct 12a has a C-shaped cross-section. The inner side wall of the upper cover 12 has an air guiding part 12b, an arc-shaped guide plate 12c and an air outlet 18. The air guiding part 12b is centered on the first lateral notch of the air outlet duct 12a. The air flow discharged by the fan 16 flows through the air outlet duct 12a towards the first lateral notch, and after being guided by the arc-shaped guide plates 12c on both sides of the air guiding part 12b, it is discharged from the air outlet 18.

[0033] Furthermore, as Figure 4-5 shown, in this embodiment, a handle 11 is detachably connected to the upper part of the upper cover 12. The upper cover 12 has a top wall and an annular side wall, and the top wall and the side wall are integrally connected. As Figure 7-8 shown, the lower cover 13 is generally circular as a whole. When the upper cover 12 and the lower cover 13 are closed, a cavity is formed. An air inlet 13b is provided at the center position of the lower cover 13, and the fan 16 is installed at the center position between the upper cover 12 and the lower cover 13. The air inlet end of the fan 16 is communicated with the air inlet 13b, and the air outlet end of the fan 16 is communicated with the air outlet duct 12a.

[0034] Furthermore, the top wall of the upper cover 12 bulges downward to form an air outlet duct 12a. When the upper cover 12 is connected to the lower cover 13, the lower end of the air outlet duct 12a abuts against the lower cover 13, thereby forming a columnar air duct. On the left and right sides of the side wall of the upper cover 12, two arc-shaped guide plates 12c are symmetrically arranged. The two arc-shaped guide plates 12c are connected at the distal ends relative to the side wall of the upper cover 12 and form a wind guiding portion 12b. Between the outer side wall of the air outlet duct 12a and the inner side wall of the upper cover 12, baffle plates 12d are arranged in pairs. The air outlet duct 12a, the upper cover 12, the baffle plates 12d and the arc-shaped guide plates 12c are combined to form a diversion air duct.

[0035] Specifically, a first sound insulation cotton 14 is installed on the inner side wall of the upper cover 12. A second sound insulation cotton 15 is installed on the inner side wall of the air outlet duct 12a. The first sound insulation cotton 14 has a second lateral notch, and the orientation of the second lateral notch is opposite to the orientation of the first lateral notch.

[0036] Further, as Figure 4-5 shown, the second sound insulation cotton 15 is also attached to the inner side wall of the air outlet duct 12a. Part of the wind noise is absorbed by the second sound insulation cotton 15 and part is reflected, which can increase the propagation path of the sound wave, thereby further reducing the noise. The first sound insulation cotton 14 is closely attached to the shape of the inner side wall of the upper cover 12, so that the air flow can be fully buffered and sound-absorbed after entering the wind guiding portion 12b. After the upper cover 12 and the lower cover 13 are connected to form a cavity, the fan 16 sucks air through the air inlet 13b and guides the air flow into the air outlet duct 12a. Due to the multiple functions of the diversion air duct, the sound insulation cotton and the arc-shaped guide plates 12c, the air flow is fully sound-insulated and shunted before being guided to the air outlet 18, thereby reducing the noise generated when the air flow is directly discharged.

[0037] Specifically, in combination with Figure 6 shown, the lower cover 13 is provided with a safety protection valve 17. The safety protection valve 17 is used to connect or separate the upper and lower sides of the lower cover 13. When the vacuum degree at the bottom of the lower cover 13 exceeds the threshold value, the safety protection valve 17 switches from the closed state to the open state. The safety protection valve 17 is arranged at the position of the second lateral notch. The lower cover 13 has a plurality of parallel air outlet guide plates 13a. When the upper cover 12 is connected to the lower cover 13, the air outlet guide plates 13a are located inside the air outlet 18.

[0038] Furthermore, the safety protection valve 17 is installed at the second lateral notch position of the lower cover 13, making clever use of the structural characteristics of this area for layout. When the vacuum degree inside the lower cover 13 exceeds the set threshold, the safety protection valve 17 will automatically switch from the closed state to the open state, enabling the upper and lower sides of the lower cover 13 to be quickly connected, thereby releasing the excessive vacuum pressure and preventing the internal components of the vacuum cleaner from being damaged due to excessive pressure. When the vacuum degree returns to the normal range, the safety protection valve 17 will automatically reset to the closed state to ensure the sealing performance and normal operation of the system.

[0039] In addition, a plurality of parallel arranged air outlet guide plates 13a are provided on the lower cover 13, and these guide plates are precisely located inside the air outlet 18 when the upper cover 12 and the lower cover 13 are connected. The presence of the air outlet guide plates 13a not only optimizes the air flow path but also effectively reduces the speed of the discharged air flow through the air flow splitting effect, further weakening the noise at the air outlet 18. The combined design of the air outlet guide plates 13a, the arc-shaped guide plate 12c, the air guiding duct, and the sound insulation cotton forms an efficient air flow control system, ensuring the smooth and quiet discharge of the air flow during the entire discharging process.

[0040] Combined Figure 1 As shown, in another embodiment, a vacuum cleaner is disclosed, including a dust collection bucket 20 and the bucket cover assembly 10 described in this embodiment.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0045] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. A bucket lid assembly, comprising an upper lid, a lower lid and a blower, wherein the blower is installed between the upper lid and the lower lid, and is characterized in that: The top wall of the upper cover has an air outlet duct extending towards the lower cover. The columnar air outlet duct has a C-shaped cross-section. The inner side wall of the upper cover has a wind guiding part, an arc-shaped guide plate and an air outlet. The wind guiding part is centered on the first lateral notch of the air outlet duct. The air flow discharged by the fan flows through the air outlet duct towards the first lateral notch, and after being guided by the arc-shaped guide plates on both sides of the wind guiding part, it is discharged from the air outlet.

2. The barrel cover assembly according to claim 1, wherein: Pairs of baffles are provided between the outer side wall of the air outlet duct and the inner side wall of the upper cover. The air outlet duct, the upper cover, the baffles and the arc-shaped guide plates form a diversion air duct.

3. The barrel cover assembly according to claim 2, wherein: The air outlet is arranged adjacent to the baffle.

4. A barrel lid assembly according to any one of claims 1-3, characterized in that: The inner side wall of the upper cover is provided with a first sound insulation cotton.

5. The barrel cover assembly according to claim 4, characterized in that: The inner side wall of the air outlet duct is provided with a second sound insulation cotton.

6. The barrel cover assembly according to claim 4, characterized in that: The first sound insulation cotton has a second lateral notch, and the orientation of the second lateral notch is opposite to that of the first lateral notch.

7. The barrel cover assembly according to claim 6, wherein: The lower cover is provided with a safety protection valve, which is used to connect or separate the upper and lower sides of the lower cover. When the vacuum degree at the bottom of the lower cover exceeds the threshold value, the safety protection valve switches from the closed state to the open state.

8. The barrel cover assembly according to claim 7, wherein: The safety protection valve is arranged at the position of the second lateral notch.

9. The barrel cover assembly according to claim 1, wherein: The lower cover has a plurality of parallel air outlet guide plates. When the upper cover is connected to the lower cover, the air outlet guide plates are located inside the air outlet.

10. A vacuum cleaner, characterized in that: It includes a dust collection bucket and the bucket cover assembly according to any one of claims 1-9.

Images