A detachable guide structure for increasing dust holding capacity of dust bag of vacuum cleaner

Abstract

A detachable guide structure for improving the dust holding capacity of a dust bag of a vacuum cleaner comprises a conical base, a plurality of columns connected to the edge of the conical base, a plastic connector connected to the top of the plurality of columns, and a plurality of guide plates movably connected to the conical surface of the conical base; the plurality of columns and the bottom surface of the conical base are vertically arranged; the conical base is provided with a plurality of protruding columns on the conical surface, and the guide plates are provided with a plurality of connecting holes at positions corresponding to the protruding columns, and the protruding columns pass through the connecting holes. In this way, the bottom surface of the filter bag can be prevented from being damaged, the dust holding capacity can be improved, the installation and disassembly are convenient, and the guide plates can be reused.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, in particular to a detachable flow guide structure for improving the dust holding capacity of a dust bag of a vacuum cleaner. Background Art

[0002] Vacuum cleaners can be divided into bag filter, dust cup filter, and water filter according to the filtering method. Among them, bag filter vacuum cleaners have the highest market share due to their low price, high filtering efficiency, and ease of use. As a consumable part of the vacuum cleaner, the filter bag is installed in a dust bin. After a period of use, due to the accumulation of dust, the air outlet efficiency of the filter bag decreases, causing the suction power of the vacuum cleaner to decrease and need to be replaced. The high dust holding material on the inner surface of the existing filter bag is easily destroyed by high-speed wind flow on the windward side opposite to the inlet, resulting in a decrease in the dust holding capacity of the filter bag; in addition, dust is easily accumulated on the side of the filter bag close to the air outlet under the action of wind. Since there is more dust accumulated on the side of the air outlet, the suction power of the vacuum cleaner decreases rapidly and the life of the dust bag is shortened. Summary of the invention

[0003] In view of this, the present invention provides a detachable guide structure for improving the dust holding capacity of a vacuum cleaner dust bag, which avoids damage to the bottom surface of the filter bag, increases the dust holding capacity, is easy to install and disassemble, and has a reusable guide piece, so as to solve the above problems.

[0004] A detachable guide structure for improving the dust holding capacity of a dust bag of a vacuum cleaner comprises a conical base, a plurality of columns connected to the edge of the conical base, plastic connectors connected to the tops of the plurality of columns, and a plurality of guide plates movably connected to the conical surface of the conical base; the plurality of columns and the bottom surface of the conical base are vertically arranged; the conical base is provided with a plurality of convex columns protruding from the conical surface, a plurality of connection holes are provided on the guide plate at positions corresponding to the convex columns, and the convex columns pass through the connection holes.

[0005] Furthermore, the bottom edge of the guide plate protrudes from the bottom edge of the conical base.

[0006] Furthermore, avoidance holes are provided on the guide plate corresponding to the columns, and the columns pass through the avoidance holes.

[0007] Furthermore, the guide plate is in the shape of a conical fan.

[0008] Furthermore, the number of the columns is 3 and they are distributed at equal angles relative to the center of the conical base, and the number of the guide plates is correspondingly set to 3.

[0009] Furthermore, the number of the connecting holes on the guide plate is 3.

[0010] Furthermore, the outer diameter of the plastic connecting piece is larger than the diameter of the bottom surface of the conical base and the diameter of the air inlet.

[0011] Furthermore, an opening is provided in the middle of the plastic connector, and a rubber coating is provided on the inner side wall of the plastic connector extending toward the center of the opening.

[0012] Compared with the prior art, the detachable guide structure for improving the dust holding capacity of the dust bag of the vacuum cleaner of the present invention comprises a conical base, a plurality of columns connected to the edge of the conical base, a plastic connector connected to the top of the plurality of columns, and a plurality of guide plates movably connected to the conical surface of the conical base; the plurality of columns and the bottom surface of the conical base are vertically arranged; the conical base is provided with a plurality of protruding columns on the conical surface, and a plurality of connecting holes are provided on the guide plate at positions corresponding to the protruding columns, and the protruding columns pass through the connecting holes. In this way, the bottom surface of the filter bag can be prevented from being damaged, the dust holding capacity can be improved, the installation and disassembly are convenient, and the guide parts can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The embodiments of the present invention are described below in conjunction with the accompanying drawings, wherein:

[0014] Figure 1 A schematic diagram of a detachable guide structure for increasing the dust capacity of a dust bag of a vacuum cleaner provided by the present invention being installed in a dust bin.

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of the dust bin and the bayonet plate.

[0016] Figure 3 for Figure 1 Schematic diagram of the layered structure of the filter bag.

[0017] Figure 4 A three-dimensional schematic diagram of a detachable flow guide structure for improving the dust holding capacity of a dust bag of a vacuum cleaner provided by the present invention.

[0018] Figure 5 A schematic diagram of the disassembly of a detachable guide structure for improving the dust holding capacity of a dust bag of a vacuum cleaner provided by the present invention. DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention are further described in detail below based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0020] Please refer to Figure 1 and Figure 2 The detachable guide structure 40 for improving the dust holding capacity of the dust bag of the vacuum cleaner provided by the present invention is arranged in a dust bin 10.

[0021] An air inlet 11 is provided at the top of the dust bin 10, and an air outlet 12 is provided at the side thereof. The air inlet 11 is circular in shape.

[0022] A bayonet plate 30 is disposed at the air inlet 11 . The bayonet plate 30 is rectangular in shape and is detachably connected to the air inlet 11 . For example, the periphery of the bayonet plate 30 is connected to the periphery of the air inlet 11 by a slot.

[0023] A circular air inlet 31 is provided in the middle of the bayonet plate 30 . The top of the air guide structure 40 is installed at the air inlet 31 , and an external dust suction pipe is directly inserted into the interior of the air guide structure 40 .

[0024] A filter bag 20 is disposed in the dust bin 10 . The opening of the filter bag 20 faces the air inlet 31 .

[0025] Please refer to Figure 3 The filter bag 20 is provided with a high-weight spunbond layer 21, a sol layer 22, a high dust holding material layer 23 and a low-weight spunbond layer 24 in sequence from the outside to the inside.

[0026] The high dust holding material layer 23 has a relatively high dust holding capacity, and may specifically be the material shown in Chinese patent CN103638747B.

[0027] Please refer to Figure 4 and Figure 5 The detachable guide structure 40 for improving the dust holding capacity of the dust bag of the vacuum cleaner provided by the present invention includes a conical base 41, a plurality of columns 42 connected to the edge of the conical base 41, a plastic connector 43 connected to the top of the plurality of columns 42, and a plurality of guide plates 44 connected to the conical surface of the conical base 41.

[0028] The plurality of columns 42 are arranged perpendicularly to the bottom surface of the conical base 41. In the present embodiment, the number of the columns 42 is 3 and they are distributed at equal angles relative to the center of the conical base 41, that is, the angle formed between two adjacent columns 42 and the center of the conical base 41 is 120 degrees. The number of the guide plates 44 is correspondingly 3, and the shape of the guide plates 44 matches the shape of the area enclosed between the top of the conical base 41 and the two adjacent columns 42, that is, it is in the shape of a conical fan. The diameter of the bottom surface of the conical base 41 is less than or equal to the diameter of the air inlet 31.

[0029] The conical base 41 is provided with a plurality of protruding columns 411 on the conical surface. In this embodiment, in the area enclosed between the top of the conical base 41 and two adjacent columns 42, the number of the protruding columns 411 is at least two, such as three.

[0030] A plurality of connection holes 441 are provided on the guide plate 44 at positions corresponding to the convex pillars 411, and the number of the connection holes 441 on the guide plate 44 is the same as the number of the convex pillars 411 in the area enclosed between the top of the conical base 41 and two adjacent upright pillars 42. The convex pillars 411 pass through the connection holes 441, so that the guide plate 44 is movably mounted on the conical base 41.

[0031] The bottom of the guide plate 44 extends downward along the conical surface of the conical base 41, so that the bottom edge of the guide plate 44 protrudes from the bottom edge of the conical base 41, that is, the diameter of the circle where the bottom of the guide plate 44 is located is greater than the diameter of the bottom surface of the conical base 41. The guide plate 44 is provided with a avoidance hole 442 corresponding to the column 42, and the column 42 passes through the avoidance hole 442. In this way, after several guide plates 44 are spliced ​​together, they have a larger guide surface, which can protect a larger area of ​​the bottom surface of the filter bag 20, and a single guide plate 44 is convenient for entering and exiting the air inlet 11. After several guide plates 44 enter the dust bin 10 and the filter bag 20, they are installed on the conical base 41 in the dust bin 10 and the filter bag 20.

[0032] The outer diameter of the plastic connector 43 is larger than the bottom surface of the conical base 41 and the diameter of the air inlet 31 , so that the detachable guide structure for improving the dust holding capacity of the vacuum cleaner dust bag provided by the present invention can be snapped onto the air inlet 31 of the bayonet plate 30 through the plastic connector 43 .

[0033] An opening is provided in the middle of the plastic connector 43, and a rubber bag 431 is provided on the inner wall of the plastic connector 43 extending toward the center of the opening. The diameter of the external dust suction tube is smaller than the inner diameter of the rubber bag 431. The dust suction tube extends into the opening after overcoming the resistance of the rubber bag 431, and the rubber bag 431 realizes the connection and sealing between the plastic connector 43 and the dust suction tube.

[0034] During installation, first place the main body of the filter bag 20 into the dust bin 10, pass one end of the guide structure 40 with a conical base 41 without the guide plate 44 installed through the air inlet 31 of the bayonet plate 30 from the outside and connect the guide structure 40 to the bayonet plate 30; place a number of guide plates 44 into the dust bin 10 and the filter bag 20 from the air inlet 11, and install a number of guide plates 44 on the conical base 41 in the dust bin 10 and the filter bag 20; then connect the bag opening of the filter bag 20 to the bayonet plate 30 or the guide structure 40 of the air inlet 11; snap the bayonet plate 30 to the air inlet 11; finally, insert the dust suction tube into the plastic connector 43.

[0035] During operation, the guide structure 40 can guide the wind from the dust collection pipe, so that the wind flows toward the edge of the guide plate 44, thereby preventing the windward surface of the filter bag 20 facing the dust collection pipe from being damaged, especially the high dust holding material layer 23 on the windward surface of the filter bag 20. The wind carries the dust around the filter bag 20, and then gradually deposits at the bottom of the filter bag 20 under the action of vibration, so that the position of the filter bag 20 close to the air outlet 12 is not easy to accumulate dust, thereby increasing the dust holding capacity of the filter bag 20 and prolonging its service life.

[0036] Since the guide surface of the guide structure 40 is a conical surface, although it will reduce the wind speed to a certain extent, the wind speed will not be reduced too much compared to the flat baffle directly facing the dust suction pipe, so that the suction force of the vacuum cleaner will not be reduced too much. In this embodiment, the wind speed is 12m / s when the guide structure 40 is not provided, and the wind speed is 6m / s after the guide structure 40 is provided.

[0037] When the dust accumulated in the filter bag 20 reaches a predetermined value, the filter bag 20 can be disassembled and discarded, while the bayonet plate 30 and the guide structure 40 can be reused, and the guide structure 40 can be disassembled for cleaning, thereby reducing material waste.

[0038] Compared with the prior art, the detachable guide structure for improving the dust holding capacity of the dust bag of the vacuum cleaner of the present invention comprises a conical base 41, a plurality of columns 42 connected to the edge of the conical base 41, a plastic connector 43 connected to the top of the plurality of columns 42, and a plurality of guide plates 44 movably connected to the conical surface of the conical base 41; the plurality of columns 42 and the bottom surface of the conical base 41 are vertically arranged; the conical base 41 is provided with a plurality of protruding columns 411 on the conical surface, and the guide plates 44 are provided with a plurality of connecting holes 441 at positions corresponding to the protruding columns 411, and the protruding columns 411 pass through the connecting holes 441. In this way, the bottom surface of the filter bag can be prevented from being damaged, the dust holding capacity can be improved, the installation and disassembly are convenient, and the guide parts can be reused.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A detachable guide structure for increasing the dust holding capacity of a vacuum cleaner dust bag, characterized in that: The guide structure is arranged in a dust bin, a filter bag is arranged in the dust bin, the opening of the filter bag faces the air inlet of the dust bin, the top of the guide structure is installed at the air inlet, the guide structure comprises a conical base, a plurality of columns connected to the edge of the conical base, a plastic connector connected to the top of the plurality of columns, and a plurality of guide plates movably connected to the conical surface of the conical base; the plurality of columns and the bottom surface of the conical base are vertically arranged; the conical base is provided with a plurality of convex columns protruding from the conical surface, a plurality of connection holes are opened at positions corresponding to the convex columns on the guide plate, and the convex columns pass through the connection holes; The bottom edge of the guide plate protrudes from the bottom edge of the conical base; The guide plate is provided with avoidance holes corresponding to the columns, and the columns pass through the avoidance holes; The guide plate is in the shape of a conical fan.

2. The detachable guide structure for increasing the dust holding capacity of a vacuum cleaner dust bag as claimed in claim 1, characterized in that: The number of the columns is 3 and they are distributed at equal angles relative to the center of the conical base, and the number of the guide plates is correspondingly set to 3.

3. The detachable guide structure for increasing the dust holding capacity of a vacuum cleaner dust bag as claimed in claim 1, characterized in that: The number of the connecting holes on the guide plate is 3.

4. The detachable guide structure for increasing the dust holding capacity of a vacuum cleaner dust bag as claimed in claim 1, characterized in that: The outer diameter of the plastic connecting piece is larger than the diameter of the bottom surface of the conical base and the diameter of the air inlet.

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