desktop vacuum cleaner

Abstract

The present invention relates to a desktop vacuum cleaner comprising a housing, a fan, and a collection cup. The collection cup is disposed at the bottom of the housing and is provided with an upwardly directed suction channel at the bottom of the collection cup. The lower end of the suction channel communicates with the exterior of the bottom of the collection cup, and the upper end of the suction channel extends into the collection cup. The fan is disposed within the housing and above the rim of the collection cup. The housing is provided with an exhaust hole corresponding to the fan. The rim of the collection cup is provided with a cup cover, which is provided with a baffle above the suction channel corresponding to the cup cover. The outer periphery of the baffle is provided with a filter window. This desktop vacuum cleaner has a cup cover on the rim of the collection cup. The cup cover has a filter window that prevents dust from being discharged through the exhaust hole. In addition, the baffle prevents inhaled garbage from colliding with the fan and generating noise.

Description

Technical Field

[0001] The invention relates to a desktop vacuum cleaner. Background Art

[0002] Chinese Patent No. CN201520328425.5, issued on September 9, 2015, discloses a desktop vacuum cleaner comprising a base, an upper shell, and a lower shell. The upper end of the base is connected to the upper shell, the lower end of the base is connected to the lower shell, and an air outlet is provided at the lower end of the base. The base is provided with a motor, a gap is left between the inner sidewall of the lower shell and the outer wall of the lower end of the base, and the horizontal projection of the air outlet is located on the inner sidewall of the lower shell. The lower end surface of the lower shell is provided with a plurality of brushes. The lower shell of this structure is used to collect fine waste such as dust (such as squeegee fragments). Because the suction port of the lower shell faces the wind wheel, when waste the size of squeegee fragments is sucked in, the small waste collides with the wind wheel, producing a crashing sound.

[0003] Another example is a keyboard mini vacuum cleaner disclosed in Chinese patent number CN201710666416.0 on October 17, 2017, which includes a vacuum cleaner lower part and a detachable upper cover provided on the vacuum cleaner lower part, the bottom surface of the vacuum cleaner lower part is flat, a cleaning ball and a cleaning brush are provided on the bottom surface of the vacuum cleaner lower part, a dust suction port is provided at the center of the bottom surface of the vacuum cleaner lower part, and a dust suction chamber connected to the dust suction port is provided at the vacuum cleaner lower part, and a dust suction fan is provided corresponding to the dust suction chamber. A filter is provided between the dust suction port and the fan blades of this structure to prevent the inhaled garbage from colliding with the fan blades and making noise. However, since the suction force of the filter is relatively large at the position opposite to the dust suction port, large particles of garbage are easily blocked at the position opposite to the dust suction port, and the purpose of the dust box cover to fully collect garbage cannot be achieved. In addition, since the filter cannot be disassembled, large particles of garbage often block the filter, making cleaning more difficult and inconvenient to use. Summary of the Invention

[0004] The object of the present invention is to provide a desktop vacuum cleaner which has a simple and reasonable structure, low noise, is easy to clean and easy to use.

[0005] The object of the present invention is achieved like this:

[0006] A desktop vacuum cleaner includes a shell, a fan and a collection cup. The collection cup is arranged at the bottom of the shell. The bottom of the collection cup is provided with an air suction channel pointing upward and downward. The lower end of the air suction channel is connected to the outside of the bottom of the collection cup, and the upper end of the air suction channel extends into the collection cup. The fan is arranged in the shell and is located above the cup mouth of the collection cup. The shell is provided with an exhaust hole corresponding to the fan. The characteristic is that: a cup cover is provided on the cup mouth of the collection cup, a baffle is provided above the cup cover corresponding to the air suction channel, and a filter window is provided on the periphery of the baffle.

[0007] The purpose of the present invention can also be solved by the following technical measures:

[0008] As a more specific solution, the baffle is provided with a rib at its outer bottom, with an inner diameter larger than the diameter of the suction channel. A downwardly projecting guide cone is provided at the center of the baffle's bottom, corresponding to the suction channel. Heavier small particles of waste collide with the guide cone and then with the baffle before falling into the collection chamber of the collection cup.

[0009] As a further solution, the cup lid has a tapered surface, wider at the top and narrower at the bottom, on the periphery of the baffle. The filter window is located on the tapered surface. A connecting sleeve is provided downwardly from the outer periphery of the upper end of the tapered surface. The upper end of the connecting sleeve has a retaining flange. The connecting sleeve engages with the inner side of the rim of the collection cup, and the retaining flange engages with the top surface of the rim. The filter window is located on the tapered surface to increase its area. The collection cup is connected to the cup lid, so when removing the collection cup, the lid can be removed simultaneously for easier cleaning.

[0010] As a further solution, a support brush is provided at the bottom of the collection cup, which raises the bottom of the collection cup to form an air suction space; in addition, the support brush can sweep away small garbage attached to the table to reduce its adhesion and help it be sucked into the collection cup.

[0011] As a further solution, the wind turbine includes a motor, a wind wheel and a motor frame, the motor is connected to the housing through the motor frame, and the wind wheel is transmission-connected to the motor.

[0012] As a further solution, a deflector shroud is provided between the impeller and the cup lid. The deflector shroud is in the shape of an inverted frustum, with an air inlet at its bottom facing the top surface of the baffle. The top of the deflector shroud forms a clearance fit or a sealed fit with the inner wall of the housing. The exhaust shroud is located above the deflector shroud. This creates a narrow passage between the deflector shroud and the cup lid, utilizing air compression to create a stronger negative pressure in the intake passage and enhance suction.

[0013] As a further embodiment, the housing has a handle at the top end, within which is a battery chamber. The upper end of the battery chamber is open and fitted with an end cap. The end cap houses a circuit board, which includes control buttons, a charging port, and an operating indicator light. A rechargeable battery is housed within the battery chamber and can be charged via the charging port. The control buttons are used to adjust the motor power and wind speed.

[0014] As a further solution, the lower part of the shell is a cover cavity with an open bottom. The collection cup is plugged into the cover cavity. A buckle position is provided on the outer periphery of the lower part of the collection cup, and a buckle rib is provided on the inner wall of the cover cavity for buckling with the buckle position.

[0015] As a further solution, a clearance hole is provided in the center of the guide cone, a center hole is provided in the center of the bottom surface of the air guide cover, a pin is provided in the center of the wind wheel, and the clearance hole, center hole, pin and suction channel are located on the same straight line; it also includes a blade, a tool holder, a transmission shaft and a mesh cover, the blade is set on the tool holder, a through hole is provided on the surface of the tool holder, one end of the transmission shaft is connected to the center of the tool holder, and the other end of the transmission shaft passes through the suction channel, the clearance hole and the center hole in sequence and is connected to the pin; the mesh cover is set outside the bottom of the collection cup, the blade and the tool holder are located between the bottom of the collection cup and the inner bottom surface of the mesh cover, and the blade is close to the inner bottom surface of the mesh cover.

[0016] As a further solution, a clutch sleeve is provided at the other end of the transmission shaft, and the clutch sleeve is sleeved with the pin shaft.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) This desktop vacuum cleaner has a cup cover on the mouth of the collection cup. The cup cover has a filter window to prevent dust from being discharged through the exhaust hole. In addition, the baffle can prevent the sucked-in garbage from colliding with the fan and making noise.

[0019] (2) The cup cover of this desktop vacuum cleaner is connected to the collection cup. When the collection cup is taken out of the shell, the cup cover is also separated from the shell along with the collection cup, making it easier to clean the cup cover.

[0020] (3) This desktop vacuum cleaner can also be equipped with a hair trimming device, which can replace the fan, collection cup and cup cover, turning the desktop vacuum cleaner into a hair trimmer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the decomposed structure of an embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the decomposition structure of the collection mechanism in the present invention.

[0023] Figure 3 for Figure 2 Schematic diagram of the structure from another angle.

[0024] Figure 4 It is a schematic diagram of the exploded structure of the exhaust mechanism in the present invention.

[0025] Figure 5 for Figure 4 Schematic diagram of the structure from another angle.

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention after assembly.

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention after assembly from another angle.

[0028] Figure 8 This is a schematic diagram of the main structure of the present invention (with the wrist strap removed).

[0029] Figure 9 for Figure 8 AA cross-sectional structural diagram.

[0030] Figure 10 This is a structural diagram of the second embodiment of the present invention.

[0031] Figure 11 This is a schematic diagram of the decomposed structure of the collection mechanism in the second embodiment of the present invention.

[0032] Figure 12 for Figure 11 Schematic diagram of the structure from another angle.

[0033] Figure 13 This is a schematic diagram of the main structure of the present invention (with the wrist strap removed).

[0034] Figure 14 13 is a schematic diagram of the BB cross-sectional structure.

[0035] In the figure: 1 is the housing, 11 is the cover cavity, 12 is the buckle rib, 13 is the exhaust hole, 14 is the handle, 15 is the end cover, and 16 is the hand strap;

[0036] 2 is the circuit board, 21 is the control button, 22 is the charging port, and 23 is the working indicator light;

[0037] 3 is the battery;

[0038] 4 is the motor;

[0039] 5 is a motor frame, 51 is a motor cover, and 52 is a connecting arm;

[0040] 6 is a wind wheel, 61 is a pin;

[0041] 7 is a deflector, 71 is an air inlet, and 72 is a center hole;

[0042] 8 is the cup cover, 81 is the filter window, 82 is the limit flange, 83 is the baffle, 84 is the guide cone, 85 is the rib, 86 is the clearance hole, and 87 is the connecting sleeve;

[0043] 9 is a collection cup, 91 is an air suction channel, 92 is a support brush, 93 is a buckle position, 94 is a collection chamber, and 95 is a mesh cover connection position;

[0044] 10 is a mesh cover;

[0045] 20 is a blade, 201 is a blade holder, 202 is a through hole, 203 is a transmission shaft, and 204 is a clutch sleeve. DETAILED DESCRIPTION

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0047] Example 1, see Figures 1 to 9 As shown, a desktop vacuum cleaner includes a shell 1, a fan and a collection cup 9. The collection cup 9 is arranged at the bottom of the shell 1. The bottom of the collection cup 9 is provided with an air suction channel 91 pointing upward and downward. The lower end of the air suction channel 91 is connected to the outside of the bottom of the collection cup 9, and the upper end of the air suction channel 91 extends into the collection cavity 94 of the collection cup 9. The fan is arranged in the shell 1 and is located above the cup mouth of the collection cup 9. The shell 1 is provided with an exhaust hole 13 corresponding to the fan; a cup cover 8 is provided on the cup mouth of the collection cup 9, and a baffle 83 is provided above the cup cover 8 corresponding to the air suction channel 91. The periphery of the baffle 83 is provided with a filter window 81.

[0048] The baffle 83 is provided with a rib 85 at the bottom of its outer periphery. The rib 85 has an inner diameter larger than the diameter of the air intake passage 91 . A guide cone 84 is provided at the center of the bottom of the baffle 83 corresponding to the air intake passage 91 . The guide cone 84 protrudes downward.

[0049] The cup cover 8 is provided with a conical surface corresponding to the baffle 83 and having a wider upper portion and a narrower lower portion, and the filter window 81 is provided on the conical surface.

[0050] A connecting sleeve 87 is provided downwardly on the outer periphery of the upper end of the conical surface, and a limiting flange 82 is provided on the outer upper end of the connecting sleeve 87. The connecting sleeve 87 is plugged into the inner side of the cup mouth of the collection cup 9, and the limiting flange 82 is limitedly matched with the top surface of the cup mouth.

[0051] A supporting brush 92 is provided at the bottom of the collecting cup 9 , and the supporting brush 92 raises the bottom of the collecting cup 9 .

[0052] The fan includes a motor 4, a wind wheel 6 and a motor frame 5. The motor 4 is connected to the housing 1 through the motor frame 5, and the wind wheel 6 is in transmission connection with the motor 4. The motor frame 5 includes a motor cover 51 and a connecting arm 52. The motor cover 51 is sleeved on the outside of the motor 4, and the connecting arm 52 is arranged on the outside of the motor cover 51.

[0053] A deflector 7 is provided between the impeller 6 and the cup cover 8. The deflector 7 is in the shape of an inverted frustum, and an air inlet 71 is provided at the bottom of the deflector 7. The air inlet 71 faces the top surface of the baffle 83, and the top of the deflector 7 is in a clearance fit or sealed fit with the inner wall of the housing 1. The exhaust hole 13 is located above the deflector 7. The deflector 7 and the connecting arm 52 are connected to the housing 1 by screws.

[0054] The housing 1 has a handle 14 at its upper end, within which is a battery chamber. The upper end of the battery chamber is open and has an end cap 15. A circuit board 2 is mounted on the end cap 15. The circuit board 2 has control buttons 21, a charging port 22, and an operating indicator light 23. A battery 3 is mounted within the battery chamber, and the battery 3 and motor 4 are electrically connected to the circuit board 2.

[0055] The end cover 15 is further provided with a hand strap 16 .

[0056] The lower part of the shell 1 is a cover cavity 11 with an open bottom. The collecting cup 9 is plugged into the cover cavity 11. A buckle position 93 is provided on the outer periphery of the lower part of the collecting cup 9. The inner wall of the cover cavity 11 is provided with a buckle rib 12 buckled with the buckle position 93.

[0057] Its working principle is: after the heavy small particle garbage enters the collection cup 9 through the suction channel 91 and collides with the guide cone 84 of the cup cover 8, it is diverted by the guide cone 84 to the baffle 83 on the outer periphery of the corresponding suction channel 91, and then falls into the collection cavity 94 of the collection cup 9 under the action of gravity.

[0058] The difference between the second embodiment and the first embodiment is that the desktop vacuum cleaner can also be equipped with a hair trimming device, which can replace the blower, collection cup and cup cover of the first embodiment, so that the desktop vacuum cleaner can be turned into a hair trimmer. Figures 10 to 14 As shown, the hair trimming device includes a collection cup 9, a blade 20, and a mesh cover 10. The collection cup 9 differs from the first embodiment in that it does not have a supporting brush. The bottom of the collection cup 9 is provided with a mesh cover connection position 95 for connecting to the mesh cover 10. The guide cone 84 of the cup cover 8 protrudes downward, and the clearance hole 86 is provided at the center of the guide cone 84. The mesh cover 10 is disposed outside the bottom of the collection cup 9. The blade 20 is disposed between the bottom of the collection cup 9 and the inner bottom surface of the mesh cover 10, with the blade 20 being close to the inner bottom surface of the mesh cover 10. The blade 20 is provided with a transmission shaft 203, and the baffle 83 is provided with a clearance hole 86 corresponding to the transmission shaft 203. The transmission shaft 203 passes through the suction channel 91 and the clearance hole 86 and is then connected to the fan.

[0059] The blade 20 is arranged on the blade holder 201, the blade holder 201 is disc-shaped, and a through hole 202 is provided on the surface of the blade holder 201; one end of the transmission shaft 203 is connected to the center of the blade holder 201, and the other end of the transmission shaft 203 is provided with a clutch sleeve 204; the fan includes a motor 4, a wind wheel 6 and a motor frame 5, the motor 4 is connected to the housing 1 through the motor frame 5, the wind wheel 6 is connected to the motor 4 through transmission, a pin shaft 61 is provided in the center of the wind wheel 6, and the clutch sleeve 204 is sleeved on the pin shaft 61.

[0060] A central hole 72 is provided at the bottom of the air deflector 7 , and the transmission shaft 203 passes through the central hole 72 .

[0061] The working principle is as follows: the mesh cover 10 is placed against the surface of the clothing, the hair ends extend into the mesh holes of the mesh cover 10, and the blade 20 rotates at high speed, cooperating with the inner surface of the mesh cover 10 to cut the hair ends that have passed through the mesh holes. The cut hair ends are sucked into the collection chamber 94 of the collection cup 9 through the suction channel 91.

Claims

1. A desktop vacuum cleaner, comprising a housing (1), a fan and a collection cup (9), wherein the collection cup (9) is arranged at the bottom of the housing (1), and an air suction channel (91) pointing upward and downward is provided at the bottom of the collection cup (9), wherein the lower end of the air suction channel (91) is communicated with the outside of the bottom of the collection cup (9), and the upper end of the air suction channel (91) extends into the collection cup (9), the fan is arranged in the housing (1) and is located above the cup mouth of the collection cup (9), and the housing (1) is provided with an exhaust hole (13) corresponding to the fan; and the characteristics are: The collection cup (9) is provided with a cup cover (8) on its mouth, a baffle (83) is provided above the cup cover (8) corresponding to the air intake channel (91), and a filter window (81) is provided on the periphery of the baffle (83); The baffle (83) is provided with a rib (85) at the bottom of its outer periphery. The rib (85) is located at an inner diameter greater than the diameter of the air intake passage (91). A guide cone (84) is provided at the center of the bottom of the baffle (83) corresponding to the air intake passage (91). The guide cone (84) protrudes downward. The cup cover (8) is provided with a conical surface that is wider at the top and narrower at the bottom on the periphery of the baffle (83), and the filter window (81) is provided on the conical surface; a connecting sleeve (87) is provided downwardly on the outer periphery of the upper end of the conical surface, and a limiting flange (82) is provided on the outer upper end of the connecting sleeve (87); the connecting sleeve (87) is plugged into and engaged with the inner side of the cup mouth of the collection cup (9), and the limiting flange (82) is limitedly engaged with the top surface of the cup mouth; The fan comprises a motor (4), a wind wheel (6) and a motor frame (5); the motor (4) is connected to the housing (1) via the motor frame (5); and the wind wheel (6) is transmission-connected to the motor (4); A shroud (7) is further provided between the wind wheel (6) and the cup cover (8). The shroud (7) is in the shape of an inverted cone. An air inlet (71) is provided at the bottom of the shroud (7). The air inlet (71) is opposite to the top surface of the baffle (83). The top of the shroud (7) is in a clearance fit or a sealing fit with the inner wall of the housing (1). The exhaust hole (13) is located above the shroud (7).

2. The desktop vacuum cleaner according to claim 1, characterized in that: A supporting brush (92) is provided at the bottom of the collecting cup (9), and the supporting brush (92) raises the bottom of the collecting cup (9).

3. The desktop vacuum cleaner according to claim 1, characterized in that: The housing (1) is provided with a handle (14) at the upper end, a battery cavity is provided in the handle (14), the upper end of the battery cavity is open and provided with an end cover (15), a circuit board (2) or a circuit switch control circuit is provided on the end cover (15), and a control button (21), a charging port (22) and a working indicator light (23) are provided on the circuit board (2).

4. The desktop vacuum cleaner according to claim 1, characterized in that: The lower portion of the housing (1) is a cover cavity (11), the bottom of the cover cavity (11) is open, the collecting cup (9) is plugged into the cover cavity (11), a buckle position (93) is provided on the outer periphery of the lower portion of the collecting cup (9), and a buckle rib (12) is provided on the inner wall of the cover cavity (11) for buckling with the buckle position (93).

5. The desktop vacuum cleaner according to claim 1, characterized in that: The guide cone (84) is provided with a clearance hole (86) at the center, the bottom surface of the guide cover (7) is provided with a center hole (72) at the center, the wind wheel (6) is provided with a pin (61) at the center, and the clearance hole (86), the center hole (72), the pin (61) and the air suction channel (91) are located on the same straight line; the blade (20), the blade holder (201), the transmission shaft (203) and the mesh cover (10) are also included, the blade (20) is set on the blade holder (201), and the surface of the blade holder (201) is provided with a There is a through hole (202), one end of the transmission shaft (203) is connected to the center of the knife holder (201), and the other end of the transmission shaft (203) passes through the suction channel (91), the clearance hole (86) and the center hole (72) in sequence and is then connected to the pin shaft (61); the mesh cover (10) is arranged outside the bottom of the collection cup (9), the blade (20) and the knife holder (201) are located between the bottom of the collection cup (9) and the inner bottom surface of the mesh cover (10), and the blade (20) is close to the inner bottom surface of the mesh cover (10).

6. The desktop vacuum cleaner according to claim 5, characterized in that: The other end of the transmission shaft (203) is provided with a clutch sleeve (204), and the clutch sleeve (204) is sleeve-connected with the pin shaft (61).

Images