Air inlet structure of dust collection cylinder of dust collector

Abstract

An air inlet structure of a dust collection barrel of a dust collector comprises a barrel body, a dust collection cavity is formed in the barrel body, and an air inlet communicated with the dust collection cavity is obliquely formed in the side portion of the barrel body so as to achieve air inlet in the tangential direction of the barrel body. A sealing plug is arranged on the air inlet, a fixed end is arranged at one end of the sealing plug, a free end is arranged at the other end, and the fixed end is fixed on one side of the air inlet; when air enters the barrel, the free end of the sealing plug is pushed away by air pressure so as to open the air inlet. The air inlet communicated with the dust collection cavity is obliquely formed in the side portion of the barrel, the sealing plug is arranged on the air inlet, and after the free end of the sealing plug is pushed away by air pressure, the gap used for air inlet is formed between the first inclined portion and the second inclined portion, so that air enters the dust collection cavity along the side portion of the air inlet, and air inlet in the tangential direction of the barrel is achieved; and therefore, cyclone air supply in the dust collection cavity is achieved, air flow rotates to enter the filtering device, dust can effectively enter the filtering device to be filtered, and the dust collection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, in particular to an air inlet structure of a dust collecting cylinder of a vacuum cleaner. Background Art

[0002] Chinese Patent Document No. CN207627252U disclosed a dust collecting cylinder and a vacuum cleaner having the same on July 20, 2018. Among them, the dust collecting cylinder includes: a dust collecting cylinder housing having a receiving cavity for receiving garbage, an air inlet hole provided on the side wall of the dust collecting cylinder housing, and the top of the dust collecting cylinder housing is open to form an opening; a first filtering structure is detachably provided at the opening of the dust collecting cylinder housing; a second filtering structure is detachably provided below the first filtering structure, and the air entering the dust collecting cylinder housing through the air inlet hole flows out of the dust collecting cylinder after passing through the second filtering structure and the first filtering structure in sequence. The air inlet of this vacuum cleaner dust collecting cylinder admits air in a straight line direction, and it is impossible to form a cyclone air supply inside the dust collecting cylinder, resulting in poor dust suction effect.

[0003] Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an air inlet structure of a dust collecting cylinder of a vacuum cleaner with simple structure, good dust suction effect, good filtering effect, good user experience and strong practicability, so as to overcome the deficiencies of the prior art.

[0005] An air inlet structure of a dust collecting cylinder of a vacuum cleaner designed according to this purpose includes a cylinder body, and a dust collecting cavity is arranged inside the cylinder body. It is characterized in that: an air inlet communicating with the dust collecting cavity is obliquely arranged on the side of the cylinder body to realize air inlet in the tangential direction of the cylinder body.

[0006] A sealing plug is arranged on the air inlet. One end of the sealing plug is provided with a fixed end and the other end is provided with a free end. The fixed end is fixed on one side of the air inlet; when air enters the cylinder body, air pressure pushes open the free end of the sealing plug to open the air inlet.

[0007] A first inclined portion is arranged on the free end, and a second inclined portion is arranged on the other side of the air inlet. After the air pressure pushes open the free end of the sealing plug, a gap for air inlet is formed between the first inclined portion and the second inclined portion.

[0008] A buckle is arranged on the fixed end, and a buckling position is arranged on one side of the air inlet. The buckle and the buckling position are buckled with each other.

[0009] A third inclined portion is arranged on one side of the air inlet. An obliquely arranged air inlet is formed between the third inclined portion and the second inclined portion.

[0010] A filtering device is provided on the dust collection chamber. The filtering device includes a filter housing assembly, a filter element, and filter paper. A first filtering chamber and a second filtering chamber are provided in the filter housing assembly and are separated from each other. The filter element is provided on the first filtering chamber, and the filter paper is provided on the second filtering chamber. The dust collection chamber, the first filtering chamber, and the second filtering chamber are communicated in sequence.

[0011] The filter housing assembly includes a filter housing, a filter screen, and a gland. The filter housing is connected to the gland, and the filter screen is fixed between the filter housing and the gland. A first filtering chamber is formed between the filter housing, the filter screen, and the gland. The second filtering chamber is located inside the filter housing, and the dust collection chamber is communicated with the first filtering chamber through the filter screen.

[0012] A plurality of first through holes are provided on one side of the filter housing. The first filtering chamber is communicated with the second filtering chamber through the first through holes.

[0013] A duct housing is provided on one side of the cylinder body. A duct chamber is provided inside the duct housing. A fan is provided on the duct chamber. The second filtering chamber is communicated with the duct chamber. An air outlet hole communicating with the outside is provided on the duct housing, and the duct chamber is communicated with the air outlet hole.

[0014] An air suction channel is provided on the vacuum cleaner, and the air suction channel is communicated with the air inlet.

[0015] In the present utility model, an air inlet communicating with the dust collection chamber is obliquely provided on the side of the cylinder body. A sealing plug is provided on the air inlet. After the free end of the sealing plug is pushed open by air pressure, a gap for air inlet is formed between the first inclined portion and the second inclined portion, so that air enters the dust collection chamber along the side of the air inlet, thereby realizing tangential air inlet of the cylinder body, and then realizing cyclone air supply in the dust collection chamber, so that the air flow rotates and enters the filtering device, and then the dust can effectively enter the filtering device for filtering, improving the dust suction effect. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the dust collection cylinder in an embodiment of the present utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of the dust collection cylinder in another orientation in an embodiment of the present utility model.

[0018] Figure 3 It is a cross-sectional view of the dust collection cylinder in an embodiment of the present utility model.

[0019] Figure 4 It is a cross-sectional view of the exploded structure of the dust collection cylinder in an embodiment of the present utility model.

[0020] Figure 5 It is a schematic diagram of the overall structure of the sealing plug in an embodiment of the present utility model.

[0021] Figure 6 It is a cross-sectional view of the dust collection cylinder in another orientation in an embodiment of the present utility model.

[0022] Figure 7 This is a schematic exploded view of the filtering device in an embodiment of the present utility model.

[0023] Figure 8 This is a schematic overall structure view of the gland in an embodiment of the present utility model.

[0024] Figure 9 For Figure 8 an enlarged schematic view of the structure at position A in

[0025] Figure 10 This is a partial cross-sectional view of the structure of the vacuum cleaner in an embodiment of the present utility model.

[0026] Figure 11 This is a schematic overall structure view of the vacuum cleaner in an embodiment of the present utility model. Detailed implementation manners

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Referring to Figures 1-11 , the air inlet structure of the dust collection cylinder of this vacuum cleaner includes a cylinder body 1. A dust collection chamber 2 is provided inside the cylinder body 1. An air inlet 3 communicating with the dust collection chamber 2 is obliquely provided on the side of the cylinder body 1 to realize the tangential air inlet of the cylinder body 1, that is, air enters the dust collection chamber 2 along the tangential direction of the cylinder body 1 through the air inlet 3, and the air inlet 3 protrudes on the outer wall of the cylinder body 1.

[0029] A sealing plug 4 is provided on the air inlet 3. One end of the sealing plug 4 is provided with a fixed end 5 and the other end is provided with a free end 6. The fixed end 5 is fixed on one side of the air inlet 3. When the cylinder body 1 intakes air, the air pressure pushes open the free end 6 of the sealing plug 4 to open the air inlet 3, and then air enters the dust collection chamber 2 through the air inlet 3. When the cylinder body 1 stops intaking air, the free end 6 resets to seal the air inlet 3 to prevent dust from leaking from the air inlet 3 when the dust collection cylinder is disassembled. The sealing plug 4 is a rubber plug.

[0030] A first inclined portion 7 is provided on the free end 6, and a second inclined portion 8 is provided on the other side of the air inlet 3. After the air pressure pushes open the free end 6 of the sealing plug 4, a gap for air inlet is formed between the first inclined portion 7 and the second inclined portion 8, and air enters the dust collection chamber 2 from the gap, so that air enters the dust collection chamber 2 along the side of the air inlet 3.

[0031] A buckle 9 is provided on the fixed end 5, and a buckle position 10 is provided on one side of the air inlet 3. The buckle 9 and the buckle position 10 are buckled with each other to fix the fixed end 5 on one side of the air inlet 3.

[0032] A third inclined portion 11 is provided on one side of the air inlet 3. An obliquely arranged air inlet 3 is formed between the third inclined portion 11 and the second inclined portion 8.

[0033] A filtering device is provided on the dust collection chamber 2. The filtering device includes a filter housing assembly, a filter element 12, and a filter paper 13. A first filtering chamber 14 and a second filtering chamber 15 are provided in the filter housing assembly and are separated from each other. The filter element 12 is provided on the first filtering chamber 14, and the filter paper 13 is provided on the second filtering chamber 15. The dust collection chamber 2, the first filtering chamber 14, and the second filtering chamber 15 are communicated in sequence.

[0034] The filter housing assembly includes a filter housing 16, a filter screen 17, and a gland 18. The filter housing 16 is connected to the gland 18, and the filter screen 17 is fixed between the filter housing 16 and the gland 18. A first filtering chamber 14 is formed between the filter housing 16, the filter screen 17, and the gland 18. The second filtering chamber 15 is located inside the filter housing 16. The dust collection chamber 2 is communicated with the first filtering chamber 14 through the filter screen 17; the filter screen 17 can filter out large particle dust and hair in the gas, the filter element 12 can separate solid particles in the gas, and the filter paper 13 can adsorb solid particles in the gas; the filter screen 17, the filter element 12, and the filter paper 13 perform triple filtration on the air, and can effectively remove dust and hair in the air.

[0035] A fixing post hole 25 is provided on the filter housing 16, and a fixing hole 26 is provided on the gland 18. After a screw passes through the fixing hole 26, it is tightly connected to the fixing post hole 25 to connect the filter housing 16 and the gland 18; a first clamping groove 27 is provided on the filter housing 16, and a second clamping groove 28 is provided on the gland 18. One end of the filter screen 17 is clamped into the first clamping groove 27 and the other end is clamped into the second clamping groove 28, so that the filter screen 17 is fixed between the filter housing 16 and the gland 18.

[0036] A plurality of first through holes 19 are provided on one side of the filter housing 16, and the first filtering chamber 14 is communicated with the second filtering chamber 15 through the first through holes 19.

[0037] The filter housing 16 includes a first housing 29 and a second housing 30 that are clamped to each other. The second filtering chamber 15 is formed between the first housing 29 and the second housing 30. The first filtering chamber 14 and the second filtering chamber 15 are separated by the first housing 29, and the first through holes 19 are provided on the first housing 29.

[0038] A duct housing 20 is provided on one side of the cylinder body 1. A duct chamber 21 is provided in the duct housing 20. A fan 22 is provided on the duct chamber 21. The second filtering chamber 15 is communicated with the duct chamber 21. An air outlet hole 23 communicating with the outside is provided on the duct housing 20. The duct chamber 21 is communicated with the air outlet hole 23; a plurality of second through holes 31 are provided on the second housing 30, and the second filtering chamber 15 is communicated with the duct chamber 21 through the second through holes 31.

[0039] An air suction channel 24 is provided on the vacuum cleaner. The air suction channel 24 communicates with the air inlet 3. The vacuum cleaner includes a main body 32, and an air inlet hole 33 is provided on the main body 32. The air inlet hole 33 communicates with the air suction channel 24. When the fan 22 operates, the outside air sequentially passes through the air inlet hole 33, the air suction channel 33, and the air inlet 3 to enter the dust collection chamber 2. Then the air passes through the filter screen 17 to enter the first filtration chamber 14. The filter screen 17 performs a preliminary filtration on the air to remove large particle dust and hair in the gas. After the air enters the first filtration chamber 14, the filter element 12 performs a fine filtration on the air to remove fine particle dust in the gas. Then the air enters the second filtration chamber 15 through the first through hole 19. The filter paper 13 adsorbs the solid particles in the gas, so that the dust is collected in the dust collection chamber 2. Then the air enters the air duct chamber 21 through the second through hole 31 and is finally discharged to the outside through the air outlet hole 23.

[0040] The above is the preferred solution of the present invention, which shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air inlet structure for a dust collecting cylinder of a vacuum cleaner, comprising a cylinder (1), wherein a dust collecting chamber (2) is arranged in the cylinder (1), and characterized in that: An air inlet (3) connected to the dust collecting chamber (2) is obliquely arranged on the side of the cylinder (1) to enable air to enter in a tangential direction of the cylinder (1).

2. The air inlet structure of the dust collecting cylinder of the vacuum cleaner according to claim 1, characterized in that: A sealing plug (4) is provided on the air inlet (3), one end of the sealing plug (4) is provided with a fixed end (5) and the other end is provided with a free end (6), and the fixed end (5) is fixed to one side of the air inlet (3); when air enters the cylinder (1), air pressure pushes the free end (6) of the sealing plug (4) to open the air inlet (3).

3. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 2, characterized in that: A first inclined portion (7) is provided on the free end (6), and a second inclined portion (8) is provided on the other side of the air inlet (3); after the air pressure pushes open the free end (6) of the sealing plug (4), a gap for air intake is formed between the first inclined portion (7) and the second inclined portion (8).

4. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 2, characterized in that: A buckle (9) is provided on the fixed end (5), a buckle position (10) is provided on one side of the air inlet (3), and the buckle (9) and the buckle position (10) are buckled with each other.

5. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 3, characterized in that: A third inclined portion (11) is provided on one side of the air inlet (3), and an obliquely arranged air inlet (3) is formed between the third inclined portion (11) and the second inclined portion (8).

6. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 1, characterized in that: A filter device is arranged on the dust collecting chamber (2), the filter device comprising a filter housing assembly, a filter element (12) and filter paper (13); a first filter chamber (14) and a second filter chamber (15) separated from each other are arranged in the filter housing assembly; the filter element (12) is arranged on the first filter chamber (14), the filter paper (13) is arranged on the second filter chamber (15); the dust collecting chamber (2), the first filter chamber (14) and the second filter chamber (15) are sequentially connected.

7. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 6, characterized in that: The filter housing assembly comprises a filter housing (16), a filter screen (17) and a gland (18); the filter housing (16) is connected to the gland (18); the filter screen (17) is fixed between the filter housing (16) and the gland (18); a first filter chamber (14) is formed between the filter housing (16), the filter screen (17) and the gland (18); the second filter chamber (15) is located in the filter housing (16); and the dust collecting chamber (2) is connected to the first filter chamber (14) via the filter screen (17).

8. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 7, characterized in that: A plurality of first through holes (19) are provided on one side of the filter housing (16), and the first filter cavity (14) is connected to the second filter cavity (15) through the first through holes (19).

9. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to claim 8, characterized in that: An air duct shell (20) is provided on one side of the cylinder body (1), an air duct cavity (21) is provided in the air duct shell (20), a fan (22) is provided on the air duct cavity (21), the second filter cavity (15) is connected to the air duct cavity (21), an air outlet hole (23) connected to the outside is provided on the air duct shell (20), and the air duct cavity (21) is connected to the air outlet hole (23).

10. The air inlet structure of the dust collecting cylinder of a vacuum cleaner according to any one of claims 1 to 9, characterized in that: The vacuum cleaner is provided with an air suction channel (24), and the air suction channel (24) is connected to the air inlet (3).

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