Cleaning appliance

Abstract

A main air duct and an auxiliary air duct are arranged in a machine body of the cleaning appliance, and the auxiliary air duct is used for prolonging the air inlet end of the main air duct, so that the air inlet end and the air outlet end of the main air duct are gathered in a set central control area; a filter assembly and an airflow motor are sequentially arranged in the main air duct according to the airflow direction, and a flow direction converter is assembled on the machine body and located in the central control area, so that the flow directions of inlet air and outlet air of the main air duct are controlled by the flow direction converter; the air tap is designed to protrude outwards from one side of the machine body and is communicated with the main air duct through the flow direction converter, and the air tap adaptively obtains air flow in opposite movement when controlling the air inlet and outlet direction of the main air duct along with the flow direction converter so as to be used for dust collection or air blowing. The dust collection and air blowing device has the dust collection function and the air blowing function at the same time, the dust collection function and the air blowing function work through the air nozzle, rapid switching between dust collection and air blowing can be achieved only by operating the flow direction converter, and operation is easy and convenient; the structure is compact and reasonable, dismounting and maintenance are easy, and the product size is small.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning appliances, in particular to a handheld vacuum cleaner. Background Art

[0002] A vacuum cleaner is a commonly used cleaning device that can be used at home, in the office and production environments to suck dust and small sundries in the indoor environment. At present, the main function of the vacuum cleaners on the market is to vacuum, with the function of sucking air. However, in actual applications, when it is necessary to clean some narrow spaces such as cracks, it is difficult to fit the suction port of the vacuum cleaner, and it is difficult to remove the dirt by sucking. At this time, it is necessary to blow away the dirt by blowing or air blowing. Most of the existing vacuum cleaners do not have the function of air blowing. A small number of vacuum cleaners with the function of air blowing have a relatively complex structure, high cost and price, and are inconvenient to adjust the suction and air blowing states; further improvement is needed. Summary of the Invention

[0003] The purpose of the utility model is to provide a cleaning appliance that has both the functions of vacuuming and air blowing, and has a simple and reasonable structure, and is convenient to switch between the vacuuming and air blowing functions.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A cleaning appliance, which has:

[0006] A body, inside which a main air duct and an auxiliary air duct are provided. The auxiliary air duct is used to extend the air inlet end of the main air duct so that the air inlet end and the air outlet end of the main air duct converge in a set central control area; in the main air duct, a filter assembly and an air flow motor are arranged in sequence according to the air flow direction, and the air inlet of the main air duct is realized by the operation of the air flow motor.

[0007] A dust cup, assembled on the body, for receiving the dust residues separated by the filter assembly.

[0008] A flow direction converter, assembled on the body and located in the above-mentioned central control area, so that the air inlet and outlet of the main air duct are both controlled by the flow direction converter for the flow direction.

[0009] A nozzle, protruding from one side of the body and communicating with the main air duct through the flow direction converter, and the nozzle automatically obtains the airflow with opposite movement as the flow direction converter controls the air inlet and outlet directions of the main air duct, for vacuuming or air blowing.

[0010] Further, the above solution is that the body is erected, the main air duct extends along the erected direction of the body, the auxiliary air duct is distributed on the outer periphery of the main air duct, and the flow direction converter is installed at the upper end of the body and controls the air inlet and outlet directions of the main air duct by rotation.

[0011] Further, in the above solution, the flow direction converter includes a bottom plate and a peripheral wall portion surrounding the bottom plate. An air hole is provided in the middle of the inner part of the bottom plate, and a notch and a concave opening are provided on the peripheral wall portion. The notch and the concave opening are arranged at intervals in the rotation direction of the flow direction converter, and the notch communicates with the air hole. An installation groove with an upward opening is provided at the upper end of the fuselage, and a first through hole communicating with the main air duct and a second through hole communicating with the auxiliary air duct are provided at the bottom of the installation groove. The flow direction converter is embedded in the installation groove, and the bottom plate fits against the bottom of the installation groove so that the air hole communicates with the first through hole. There are two second through holes, and they alternately communicate with the concave opening according to the rotation of the flow direction converter. An upper cover is further assembled at the upper end of the fuselage. The upper cover and the fuselage surround and limit the flow direction converter and simultaneously form a nozzle. The upper cover has a covering portion with a downward opening, and the covering portion wraps the peripheral wall portion of the flow direction converter. An air port is provided on the covering portion, and the air port is used to cooperate with the notch and the concave opening to work.

[0012] Further, in the above solution, a rotatable cover is provided on the upper cover. The rotatable cover is connected to the flow direction converter to form a linkage system so that operating the rotatable cover can drive the flow direction converter to rotate.

[0013] Further, in the above solution, the cleaning appliance is a handheld vacuum cleaner. A handle is provided on the corresponding side of the fuselage, and the handle and the nozzle are respectively arranged on the opposite sides of the fuselage.

[0014] Further, in the above solution, the bottom end of the fuselage is connected to the dust cup by a screw snap connection.

[0015] Further, in the above solution, the fuselage is in the shape of a teapot with a wider bottom and a narrower top.

[0016] Further, in the above solution, a blowing channel and a suction channel are hierarchically constructed inside the nozzle, and a movable baffle is provided at the inner end of the suction channel. The movable baffle tightly closes the suction channel in the blowing working state of the nozzle.

[0017] Further, in the above solution, the movable baffle is a hanging damper structure. The upper end of the movable baffle is hinged to the inner wall of the nozzle, and the lower end of the movable baffle hangs freely. The outer dimension of the movable baffle matches the inner peripheral wall contour of the suction channel.

[0018] The cleaning appliance provided by the present utility model simultaneously has the functions of dust suction and blowing, and both dust suction and blowing work through the nozzle. It not only solves the defect that the existing vacuum cleaner lacks blowing function, but also solves the problem of poor use experience caused by the non - sharing of the suction / blowing port. By simply operating the flow direction converter to control the inlet and outlet air directions of the main air duct, the quick switching from the "suction" function to the "blowing" function can be realized, and the operation is simple and convenient. The nozzle obtains opposite - moving airflows with the control of the flow direction converter for the inlet and outlet air directions of the main air duct, which is used for dust suction or blowing, and has a simple structure, low cost and high reliability.

[0019] Another advantage of the present utility model is that it has a compact and reasonable structure, is easy to disassemble, assemble and maintain, has a small product volume and is convenient to use. At the same time, the structure is further optimized to form a concentrated high-pressure air flow for blowing, achieving a better blowing and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. Figure 1 is a schematic structural diagram of one embodiment of the present utility model;

[0021] FIG. Figure 2 is Figure 1 a schematic exploded view of the structure of the embodiment;

[0022] FIG. Figure 3 is Figure 1 a schematic cross-sectional view of the internal structure of the embodiment;

[0023] FIG. Figure 4 is Figure 1 a schematic structural diagram of the flow direction converter of the embodiment;

[0024] FIG. Figure 5 、 6 is Figure 1 a schematic diagram of the dust suction operation of the embodiment;

[0025] FIG. Figure 7 、 8 is Figure 1 a schematic diagram of the blowing operation of the embodiment;

[0026] FIG. Figure 9 is a schematic structural diagram of a second embodiment of the present utility model;

[0027] FIG. Figure 10 is Figure 9 a schematic exploded view of the structure of the embodiment;

[0028] FIG. Figure 11 is Figure 9 a schematic diagram of the dust suction operation of the embodiment;

[0029] FIG. Figure 12 is Figure 9 a schematic diagram of the blowing operation of the embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will further illustrate the concept, specific structure and technical effects of the present utility model with reference to the drawings, so as to fully understand the purpose, features and effects of the present utility model.

[0031] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] Referring to Figures 1 to 12 As shown, it is a schematic structural diagram of a preferred embodiment of the present utility model. The present utility model relates to a cleaning appliance. Preferably, the cleaning appliance is a handheld vacuum cleaner, which has: a body 1, a filter assembly 2, an air flow motor 3, a dust cup 4, a flow direction converter 5, and a nozzle 6. The interior of the body 1 is provided with a main air duct 11 and an auxiliary air duct 12. The auxiliary air duct 12 is used to extend the air inlet end of the main air duct 11, so that the air inlet end and the air outlet end of the main air duct 11 converge in a set central control area. In the main air duct 11, the filter assembly 2 and the air flow motor 3 are arranged in sequence according to the air flow direction. The air flow motor 3 works to achieve the air inlet of the main air duct 11, and the filter assembly 2 separates the dust and slag in the air flow; the filter assembly 2 and the air flow motor 3 are prior arts, and their working principles will not be elaborated here. In this embodiment, a battery 15 and a circuit board 16 are further arranged inside the body 1 for supplying power and controlling the air flow motor 3 to achieve the portable effect. The dust cup 4 is assembled on the body 1 for receiving the dust and slag separated by the filter assembly 2 for subsequent cleaning. The flow direction converter 5 is assembled on the body 1 and located in the above-mentioned central control area, so that the air inlet and air outlet of the main air duct 11 are both controlled by the flow direction converter 5 for the flow direction; the flow direction converter 5 is used to control the air inlet and outlet directions of the main air duct 11 to achieve air inlet and outlet in different directions and meet the working needs; the nozzle 6 protrudes from one side of the body 1 and communicates with the main air duct 11 through the flow direction converter 5, and the nozzle 6 adaptively obtains the air flow with opposite movement when the flow direction converter 5 controls the air inlet and outlet directions of the main air duct 11, for vacuuming or blowing, realizing the multi-purpose of the nozzle 6, meeting the cleaning needs in different environments, and achieving a compact and reasonable product structure, which is convenient to implement.

[0033] Figure 3As shown, in this embodiment, the fuselage 1 is erected, and the main air duct 11 extends along the erected direction of the fuselage 1. Preferably, the main air duct 11 is arranged along the geometric center line of the fuselage 1. The filter assembly 2 and the air flow motor 3 are coaxially arranged in the main air duct 11, and the main air duct 11 admits air from bottom to top. The auxiliary air duct 12 is distributed on the outer periphery of the main air duct 11. The flow direction converter 5 is installed at the upper end of the fuselage 1 and controls the air inlet and outlet directions of the main air duct 11 by rotation, with simple operation. Preferably, the flow direction converter 5 is coaxially arranged with the filter assembly 2 and the air flow motor 3. The flow direction converter 5 includes a bottom plate 51 and a peripheral wall portion 52 enclosing the bottom plate. An air hole 511 is provided in the middle of the inner part of the bottom plate 51, and a notch 521 and an inner concave opening 522 are provided on the peripheral wall portion 52. The notch 521 and the inner concave opening 522 are arranged at intervals in the rotation direction of the flow direction converter 5, and the notch 521 communicates with the air hole 511. The inner concave opening 522 is recessed from the outside of the peripheral wall portion 52 and extends downward through the bottom plate 51. An upward-opening placement groove 13 is provided at the upper end of the fuselage 1, and a first through hole 131 communicating with the main air duct 11 and a second through hole 132 communicating with the auxiliary air duct 12 are provided at the bottom of the placement groove 13. The flow direction converter 5 is embedded in the placement groove 13, and the bottom plate 51 fits against the bottom of the placement groove 13, so that the air hole 511 communicates with the first through hole 131. In this embodiment, the first through hole 131 and the main air duct 11 are coaxially constructed, with a compact and reasonable structure. There are two second through holes 132, which are arranged at intervals around the first through hole 131. The two second through holes 132 alternately communicate with the inner concave opening 522 according to the rotation of the flow direction converter 5 to meet the requirements of air inlet in different directions. An upper cover 7 is also assembled at the upper end of the fuselage 1. The upper cover 7 and the fuselage 1 enclose and limit the flow direction converter 5 and simultaneously construct the air nozzle 6. In this embodiment, the upper cover 7 is covered on the fuselage 1 and locked by screws, meeting the requirements of sealing and being convenient for disassembly and assembly. The upper cover 7 has a covering portion 71 with a downward opening, and the covering portion 71 wraps the peripheral wall portion 52 of the flow direction converter 5. An air port 711 is provided on the covering portion 71, and the air port 711 is used to cooperate with the notch 521 and the inner concave opening 522 to work. In this embodiment, there are two air ports 711, which are arranged at intervals along the outer periphery of the covering portion 71. One air port 711 can cooperate with the notch 521 to exhaust air, so that the main air duct 11 can exhaust air through the first through hole 131, the air hole 511, the notch 521 and the air port 711. At this time, the corresponding working state of the air nozzle 6 is dust suction. The other air port 711 can cooperate with the inner concave opening 522 to admit air, so that external air can enter the main air duct 11 after passing through the air port 711, the inner concave opening 522, the second through hole 132 and the auxiliary air duct 12. At this time, the corresponding working state of the air nozzle 6 is air blowing.

[0034] In this embodiment, a rotatable cover 72 is provided on the upper cover 7. The rotatable cover 72 is connected to the flow direction converter 5 to form a linkage system, so that the flow direction converter 5 can be driven to rotate by operating the rotatable cover 72. The structure is simple and the switching is quite easy. In the embodiment, positioning or indication when rotated in place can be appropriately added to further optimize the operation. In this embodiment, the flow direction converter 5 and the rotatable cover 72 are connected by a screw locking method. A protruding stud 512 is also provided in the inner middle of the bottom plate 51 of the flow direction converter 5. The flow direction converter 5 can be locked tightly with the rotatable cover 72 by contacting the stud 512 with screws. A plurality of air holes 511 are opened at the root of the stud 512, which can not only meet the installation requirements but also ensure the construction of the air duct. In this embodiment, an annular groove 712 is further provided inside the covering portion 71. The annular groove 712 just clamps the upper edge of the peripheral wall portion 52 of the flow direction converter 5, providing good positioning and limiting to ensure the position and rotation of the flow direction converter 5.

[0035] Figure 5 , 6 As shown in the figure, during the dust suction operation, the flow direction converter 5 is rotated so that the concave notch 522 of the flow direction converter 5 is docked with the air nozzle 6 and communicates with the second through hole 132 of the corresponding part. At this time, the notch 521 on the flow direction converter 5 just faces one air port 711 on the covering portion 71. The air flow motor 3 is started, and external air is sucked in from the air nozzle 6 to form a dust suction operation. The air flow passes through the air nozzle 6, the concave notch 522, the second through hole 132, and the auxiliary air duct 12 and then enters the main air duct 11. The filter assembly 2 effectively intercepts and separates the dust and slag in the air flow, and the air flow in the main air duct 11 is exhausted through the first through hole 131, the air holes 511, the notch 521, and the air port 711.

[0036] Figure 7 , 8 As shown in the figure, during the blowing operation, the flow direction converter 5 is rotated so that the notch 521 of the flow direction converter 5 is docked with the air nozzle 6 to connect the air nozzle 6 with the main air duct 11. At this time, the concave notch 522 of the flow direction converter 5 just faces the corresponding air port 711 on the covering portion 71. The air flow motor 3 is started, and external air is sucked in from the concave notch 522 into the auxiliary air duct 12 and then enters the main air duct 11. The filter assembly 2 also effectively intercepts and separates the dust and slag in the air flow, and the air flow in the main air duct 11 blows air through the first through hole 131, the air holes 511, the notch 521, and the air nozzle 6 to achieve the blowing and cleaning operation.

[0037] As described above, the cleaning appliance implementing the present utility model has both a dust suction function and a blowing function at the same time, and both the dust suction and the blowing work through the air nozzle. This not only solves the defect that the existing vacuum cleaner lacks the blowing function, but also solves the problem of poor user experience caused by the non - sharing of the suction / blowing port. By simply operating the flow direction converter to switch the air outlet of the main air duct, the quick switching from the "suction" function to the "blowing" function can be achieved, with simple and convenient operation; the air nozzle obtains the airflow with opposite movement as the flow direction converter switches the air outlet of the main air duct, which is used for dust suction or blowing. The structure is simple and compact, the product has a small volume, is convenient to use, and has low cost and high reliability.

[0038] Figures 1 to 3 As shown in FIGS. 5 - 12, a handle 14 is provided on the corresponding side of the body 1 of this embodiment, which is convenient for handheld operation. The handle 14 is constructed by enclosing the upper cover 7 and the body 1. In this embodiment, a battery 15 can also be embedded inside the handle 14 to increase the power and improve the standby performance of the product. The structure is compact and reasonable. The handle 14 and the air nozzle 6 of this embodiment are respectively arranged on the opposite sides of the body 1, which is beneficial to the handheld dust suction or blowing cleaning work. The body 1 of this embodiment is in the shape of a teapot with a wider bottom and a narrower top, which has a better geometric center of gravity and is convenient for handheld use. The bottom end of the body 1 is connected to the dust cup 4 by a spiral snap - fit method, which is convenient for disassembling and assembling the dust cup 4. And by using the teapot shape of the body 1, it is more conducive to separating and collecting dust residues, improving the cleaning efficiency.

[0039] Figures 9 to 12 As shown, the present utility model can further have a layered structure inside the air nozzle 6 to construct a blowing channel 61 and a suction channel 62, and a movable baffle 63 is provided at the inner end of the suction channel 62. The aperture of the suction channel 62 is larger than that of the blowing channel 61. The movable baffle 63 tightly closes the suction channel 62 in the blowing working state of the air nozzle 6. This can further gather the gas to blow through the blowing channel 61, and can form a concentrated high - pressure airflow for blowing, achieving a better blowing cleaning effect. The movable baffle 63 of this embodiment is a hanging damper structure. The upper end of the movable baffle 63 is hinged to the inner wall of the air nozzle 6, while the lower end of the movable baffle 63 freely hangs down. The outer dimension of the movable baffle 63 matches the inner peripheral wall contour of the suction channel 62. The taper structure or stop step of the inner peripheral wall of the suction channel 62 can be further used to cooperate with the movable baffle 63 to meet the one - way opening operation. This structure satisfies that when performing the dust suction work, the external air is inhaled and pushes open the movable baffle 63, while when performing the blowing work, the movable baffle 63 is pushed by the air pressure to tightly close the suction channel 62. The structure is compact and reasonable, easy to disassemble, assemble and maintain, and achieves a better blowing cleaning effect.

[0040] Although the preferred specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the exact structure and operation as described above and shown in the drawings. For those skilled in the art of this technology, many equivalent improvements and variations can still be made to the above embodiments through logical analysis, reasoning, or limited experiments without exceeding the concept and scope of the present invention. However, these improvements and variations should all fall within the scope of protection required by the present invention.

Claims

1. A cleaning tool, characterized in that: have: A body (1), wherein a main air duct (11) and an auxiliary air duct (12) are provided inside the body (1), wherein the auxiliary air duct (12) is used to extend the air inlet end of the main air duct (11), so that the air inlet end and the air outlet end of the main air duct (11) are gathered in a set central control area; a filter assembly (2) and an air flow motor (3) are arranged in sequence in the main air duct (11) according to the air flow direction, and air intake of the main air duct (11) is achieved by operating the air flow motor (3); A dust cup (4) is assembled on the body (1) and is used to receive dust separated by the filter assembly (2); A flow direction converter (5) is assembled on the fuselage (1) and is located in the above-mentioned central control area, so that the inlet and outlet air of the main air duct (11) are both controlled by the flow direction converter (5); The air nozzle (6) is designed to protrude from one side of the body (1) and is connected to the main air duct (11) through the flow direction converter (5). When the flow direction converter (5) controls the inlet and outlet wind directions of the main air duct (11), the air nozzle (6) automatically obtains an airflow with opposite movement, which is used for vacuuming or blowing.

2. A cleaning device according to claim 1, characterized in that: The fuselage (1) is arranged vertically, the main air duct (11) extends along the vertical direction of the fuselage (1), the auxiliary air duct (12) is distributed on the periphery of the main air duct (11), and the flow direction converter (5) is installed at the upper end of the fuselage (1) and controls the inlet and outlet wind directions of the main air duct (11) by means of rotation.

3. A cleaning device according to claim 2, characterized in that: The flow direction converter (5) comprises a bottom plate (51) and a peripheral wall portion (52) surrounding the bottom plate, an air hole (511) is provided in the inner middle portion of the bottom plate (51), and a notch (521) and an inner recess (522) are provided on the peripheral wall portion (52), and the notch (521) and the inner recess (522) are arranged at intervals in the rotation direction of the flow direction converter (5), and the notch (521) is connected to the air hole (511); an upper end of the body (1) is provided with a placement groove (13) with an opening facing upward, and a first through hole (131) connected to the main air duct (11) and a second through hole (132) connected to the auxiliary air duct (12) are provided at the bottom of the placement groove (13); the flow direction converter (5) is embedded in the placement groove (13) ), and the bottom plate (51) is attached to the bottom of the placement groove (13), so that the air hole (511) is connected to the first through hole (131); the second through hole (132) has two holes and they are alternately connected to the inner recess (522) according to the rotation of the flow direction converter (5); the upper end of the body (1) is also assembled with an upper cover (7), the upper cover (7) and the body (1) enclose and restrict the flow direction converter (5) and simultaneously construct the air nozzle (6), the upper cover (7) has a cover part (71) with an opening facing downward, the cover part (71) wraps around the peripheral wall part (52) of the flow direction converter (5), and the cover part (71) is provided with an air port (711), the air port (711) is used to cooperate with the notch (521) and the inner recess (522) to work.

4. A cleaning device according to claim 3, characterized in that: The upper cover (7) is provided with a relatively movable rotating cover (72), and the rotating cover (72) is connected to the flow direction converter (5) to form a linkage system, so that the rotating cover (72) can be operated to drive the flow direction converter (5) to rotate.

5. A cleaning device according to claim 2, characterized in that: The cleaning device is a handheld vacuum cleaner, wherein a handle (14) is provided on the corresponding side of the body (1), and the handle (14) and the air nozzle (6) are respectively arranged on opposite sides of the body (1).

6. A cleaning device according to claim 2, characterized in that: The bottom end of the body (1) is connected to the dust cup (4) by means of a screw clamp.

7. A cleaning device according to claim 2, 5 or 6, characterized in that: The body (1) is in the shape of a teapot that is wide at the bottom and narrow at the top.

8. A cleaning device according to claim 1 or 3, characterized in that: The air nozzle (6) is provided with a layered blowing channel (61) and an air suction channel (62) inside, and a movable baffle (63) is provided at the inner end of the air suction channel (62), wherein the movable baffle (63) tightly closes the air suction channel (62) when the air nozzle (6) is in a blowing working state.

9. A cleaning device according to claim 8, characterized in that: The movable baffle (63) is a suspended damper structure, the upper end of the movable baffle (63) is hinged to the inner wall of the air nozzle (6), while the lower end of the movable baffle (63) is freely suspended, and the outer dimensions of the movable baffle (63) match the contour of the inner peripheral wall of the air intake channel (62).

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