Multi-stage filtering structure of dust collector

Abstract

The utility model discloses a dust collector multistage filtering structure which comprises a dust cup and a conical cup-shaped filter screen which is installed inside the dust cup and used for first filtering, an air inlet is formed in the side wall of the dust cup, an air outlet is formed in the top of the dust cup, and the filter screen is located between the air inlet and the air outlet. A pneumatic impeller is rotatably mounted between the filter screen and the air outlet and used for secondary filtration, the size of the impeller is larger than the diameter of the top of the filter screen, and filter cotton is further arranged between the impeller and the air outlet and used for tertiary filtration. According to the multistage filter structure of the dust collector, the conical filter screen is matched with the movable impeller and the filter cotton to filter dust and wind in a multistage mode, the effect of filtering impurities is improved while it is guaranteed that the overall structure is simple and convenient to produce, garbage can be classified and separated, the effect of filtering fine dust is improved, and the service life of the dust collector is prolonged. The influence of fine dust on the service life of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, in particular to a multi-stage filtering structure of a vacuum cleaner. Background Art

[0002] With the progress of society and the improvement of people's living standards, vacuum cleaners, as common household appliances, are gradually becoming popular in thousands of households. Moreover, with the development of the vacuum cleaner industry, the scale of vacuum cleaner production is also expanding. There are many types of common vacuum cleaners on the market, and their structures are also different. However, most of them have the same disadvantages. Conventional vacuum cleaners are not effective in filtering fine dust. Fine dust can enter the electrical components of the vacuum cleaner along the wind direction, directly shortening the life of the equipment. It is also easy to cause inconvenience to users when cleaning the dust cup, causing secondary pollution. If the cleaning effect of fine dust is to be improved, the improved vacuum cleaner structure will be more complex, occupy more space, and require higher motor power, which is difficult to meet daily work needs.

[0003] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a new technical solution. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-stage filtering structure of a vacuum cleaner that can perform multi-stage filtering on garbage and dust while maintaining a simple structure, improve the filtering effect on fine dust, thereby increasing the service life of the equipment and solving the problem of secondary pollution of garbage.

[0005] In order to solve the above technical problems, the present invention provides a multi-stage filtering structure for a vacuum cleaner. The specific technical solutions are as follows:

[0006] A multi-stage filtration structure for a vacuum cleaner includes a dust cup and a conical cup-shaped filter installed inside the dust cup for primary filtration, an air inlet is provided on the side wall of the dust cup, an air outlet is provided on the top of the dust cup, and the filter is located between the air inlet and the air outlet; a pneumatic impeller is rotatably installed between the filter and the air outlet for secondary filtration, the size of the impeller being larger than the diameter of the top of the filter, and filter cotton is also provided between the impeller and the air outlet for tertiary filtration.

[0007] Preferably, the dust cup is internally divided into a first dust collecting chamber and a second dust collecting chamber by a longitudinal partition, a transverse space is left above the partition so that the first dust collecting chamber and the second dust collecting chamber form an opening connected through the transverse space, the top of the filter is fixedly installed at the opening of the first dust collecting chamber to separate the size of impurities in the first dust collecting chamber and the second dust collecting chamber, the impeller is installed in the transverse space and covers the top outlet of the filter, and the outer end of the impeller blade is located within the opening range of the second dust collecting chamber.

[0008] Preferably, an impeller cover plate is fixedly installed in the dust cup, the impeller cover plate is located between the filter screen and the air outlet, the bottom side of the impeller cover plate is located in the horizontal space and extends in an arc shape toward the bottom of the center, the impeller is rotatably fixed under the impeller cover plate by a bearing, and the cross-section of the impeller is an arc parallel to the bottom side of the impeller cover plate, and a plurality of air outlets are provided on the bottom side surface of the impeller cover plate to facilitate gas circulation, and the air outlets are located within the longitudinal coverage range of the impeller.

[0009] Preferably, the upper side of the impeller cover plate has a groove, the air outlet extends from the bottom side of the impeller cover plate into the groove on the upper side of the impeller cover plate, the filter cotton is fixed in the groove and the size of the filter cotton is adapted to the inner diameter of the groove.

[0010] Preferably, a detachable upper cover is provided on the upper cover of the dust cup, and the air outlet is located in the middle of the upper cover.

[0011] Preferably, the bottom cover of the dust cup is provided with a bottom cover, a button for controlling the opening and closing of the bottom cover is installed on the outer wall of the dust cup, and a bottom cover filter cotton is fixed at the fitting position of the bottom cover and the second dust collecting chamber.

[0012] Preferably, the cross section of the blades of the impeller extends radially outward from the center of the impeller in an involute shape.

[0013] The multi-stage filtering structure of a vacuum cleaner of the utility model has the following beneficial effects:

[0014] The multi-stage filtration structure of the vacuum cleaner of the utility model performs multi-stage filtration of dust and wind through a conical filter mesh in conjunction with a movable impeller and filter cotton, which improves the filtration effect of impurities while ensuring the overall structure is simple and easy to produce, can realize the classification and separation of garbage and improve the filtration effect of fine dust, reduce the impact of fine dust on the life of the equipment, and can more conveniently clean large particles of dust and hair impurities, thereby improving the user experience;

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of a multi-stage filtering structure of a vacuum cleaner;

[0018] Figure 2 for Figure 1 Schematic diagram of the coordination between the middle moving impeller and the dust cup.

[0019] Among them, 1-dust cup; 11-bottom cover; 12-upper cover; 13-air inlet; 14-air outlet; 15-first dust collecting chamber; 16-second dust collecting chamber; 2-filter; 3-moving impeller; 31-impeller cover; 311-air inlet; 32-bearing; 4-filter cotton. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] Example

[0022] See also Figures 1 to 2 A multi-stage filtration structure of a vacuum cleaner includes a dust cup 1 and a conical cup-shaped filter screen 2 installed inside the dust cup as the first filtration. The side wall of the dust cup is provided with an air inlet 13, and the top of the dust cup is provided with an air outlet 14. The filter screen is located between the air inlet and the air outlet; a pneumatic impeller 3 is rotatably installed between the filter screen and the air outlet as the secondary filtration. The size of the impeller is larger than the diameter of the top of the filter screen. A filter cotton 4 is also provided between the impeller and the air outlet as the tertiary filtration.

[0023] The interior of the dust cup 1 is divided into a first dust collecting chamber 15 and a second dust collecting chamber 16 by a longitudinal partition. A horizontal space is left above the partition so that the first dust collecting chamber and the second dust collecting chamber form an opening connected through the horizontal space. The top of the filter 2 is fixedly installed at the opening of the first dust collecting chamber to separate the size of impurities in the first dust collecting chamber and the second dust collecting chamber. The impeller is installed in the horizontal space and covers the top outlet of the filter, and the outer end of the impeller blade is located within the opening range of the second dust collecting chamber.

[0024] An impeller cover plate 31 is fixedly installed in the dust cup 1, and the impeller cover plate is located between the filter 2 and the air outlet 14. The bottom side of the impeller cover plate is located in the horizontal space and extends in an arc shape toward the bottom of the center. The impeller is rotatably fixed under the impeller cover plate by a bearing 32, and the cross-section of the impeller is an arc parallel to the bottom side of the impeller cover plate. A plurality of air outlets 311 are also provided on the bottom side surface of the impeller cover plate to facilitate gas circulation. The air outlets are located within the longitudinal coverage range of the impeller.

[0025] The upper side of the impeller cover plate 31 has a groove, and the air outlet extends from the bottom side of the impeller cover plate into the groove on the upper side of the impeller cover plate. The filter cotton 4 is fixed in the groove and the size of the filter cotton is adapted to the inner diameter of the groove.

[0026] A detachable upper cover 12 is provided on the upper cover of the dust cup 1, and an air outlet 14 is located in the middle of the upper cover.

[0027] The bottom cover of the dust cup 1 is provided with a bottom cover 11, and a button for controlling the opening and closing of the bottom cover is installed on the outer wall of the dust cup. A bottom cover filter cotton is fixed at the fitting position of the bottom cover and the second dust collecting chamber.

[0028] The cross section of the blades of the impeller 3 extends radially outward from the center of the impeller in an involute shape so that the dust suction wind can drive the impeller to rotate.

[0029] The vacuum cleaner of this embodiment has a multi-stage filtering structure. When working, the dust suction wind enters the first dust collecting chamber 15 from the air inlet 13. Under the action of the conical filter 2, the air rotates in the first dust collecting chamber and separates large particles of dust, hair and other garbage from it. After completing the first filtration through the filter 2, the dust suction wind enters the horizontal space above the first dust collecting chamber and drives the impeller 3 to rotate. Under the action of the impeller, since the weight of dust is greater than the weight of air, the fine dust will be subjected to centrifugal force under the action of the impeller and separated outward, and then fall into the second dust collecting chamber 16 under the action of gravity, thereby completing the secondary filtration. At the same time, the dust suction wind that removes the fine dust is turned by the impeller and returned to the upper impeller cover 31 and discharged upward from the air outlet 311. When discharged, it is filtered three times through the filter cotton 4 and finally leaves the dust cup from the air outlet 14 to complete the multi-stage filtration.

[0030] The beneficial effects of the present invention are: multi-stage filtration of dust and wind is performed through the conical filter mesh in conjunction with the impeller and filter cotton, which improves the filtering effect of impurities while ensuring the simplicity of the overall structure and ease of production, can realize the classification and separation of garbage and improve the filtering effect of fine dust, reduce the impact of fine dust on the life of the equipment, and can also more conveniently clean large particles of dust and hair impurities, thereby improving the user experience.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify and modify the above embodiments within the scope of the present invention.

Claims

1. A multi-stage filtration structure for a vacuum cleaner, characterized by: The invention comprises a dust cup (1) and a conical cup-shaped filter (2) installed inside the dust cup for primary filtration, wherein an air inlet (13) is provided on the side wall of the dust cup, an air outlet (14) is provided on the top of the dust cup, and the filter is located between the air inlet and the air outlet; a pneumatic impeller (3) is rotatably installed between the filter and the air outlet for secondary filtration, wherein the size of the impeller is larger than the diameter of the top of the filter, and filter cotton (4) is further provided between the impeller and the air outlet for tertiary filtration.

2. The multi-stage filtration structure of a vacuum cleaner according to claim 1, characterized in that: The dust cup (1) is internally divided into a first dust collecting chamber (15) and a second dust collecting chamber (16) by a longitudinal partition, a transverse space is left above the partition so that the first dust collecting chamber and the second dust collecting chamber form an opening connected through the transverse space, the top of the filter (2) is fixedly installed at the opening of the first dust collecting chamber to separate the size of impurities in the first dust collecting chamber and the second dust collecting chamber, the impeller is installed in the transverse space and covers the top outlet of the filter, and the outer end of the impeller blade is located within the opening range of the second dust collecting chamber.

3. The multi-stage filtration structure of a vacuum cleaner according to claim 2, characterized in that: An impeller cover plate (31) is fixedly installed in the dust cup (1), and the impeller cover plate is located between the filter screen (2) and the air outlet (14). The bottom side of the impeller cover plate is located in the horizontal space and extends in an arc shape toward the center. The impeller is rotatably fixed below the impeller cover plate through a bearing (32), and the cross section of the impeller is in an arc shape parallel to the bottom side of the impeller cover plate. A plurality of air outlets (311) are also provided on the bottom side surface of the impeller cover plate to facilitate gas circulation. The air outlets are located within the longitudinal coverage range of the impeller.

4. The multi-stage filtration structure of a vacuum cleaner according to claim 3, characterized in that: The upper side of the impeller cover plate (31) has a groove, and the air outlet extends from the bottom side of the impeller cover plate into the groove on the upper side of the impeller cover plate. The filter cotton (4) is fixed in the groove, and the size of the filter cotton is adapted to the inner diameter of the groove.

5. The multi-stage filtration structure of a vacuum cleaner according to claim 1, characterized in that: The dust cup (1) is covered with a detachable upper cover (12), and the air outlet (14) is located in the middle of the upper cover.

6. The multi-stage filtration structure of a vacuum cleaner according to claim 1, characterized in that: The bottom cover of the dust cup (1) is provided with a bottom cover (11), and a button for controlling the opening and closing of the bottom cover is installed on the outer wall of the dust cup. A bottom cover filter cotton is fixed at the fitting position of the bottom cover and the second dust collecting chamber.

7. The multi-stage filtration structure of a vacuum cleaner according to claim 1, characterized in that: The blade cross section of the impeller (3) radiates outward from the center of the impeller in an involute shape.

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