Handheld vacuum cleaner with dust bag assembly

Abstract

The present invention discloses a handheld vacuum cleaner with a dust bag assembly, comprising a body having a body cavity, an air inlet pipe, and a handle; a dust bag assembly disposed within the body cavity; a motor base fixedly connected to the bottom of the body; a motor disposed between the body and the motor base; and a dust bag cover that opens / closes one end of the body cavity and secures one end of the dust bag assembly. The body is provided with an air inlet baffle at the bottom end of the body cavity, located downstream of the dust bag assembly and upstream of the motor. The present invention has the advantages of achieving dust cleaning by regularly replacing the dust bag, reducing secondary pollution, and improving user experience.

Description

Technical Field

[0001] The invention relates to a handheld vacuum cleaner with a dust bag assembly. Background Art

[0002] Vacuum cleaners currently on the market usually include a cyclonic dust cup for dust and gas separation. However, the dust cup needs to be emptied regularly, and the dust dumping process is prone to secondary contamination of the dust. Summary of the Invention

[0003] The purpose of the present invention is to provide a handheld vacuum cleaner with a dust bag assembly, which can clean dust by regularly replacing the dust bag, reduce secondary pollution, and improve user experience.

[0004] The first technical solution of the present invention is: a handheld vacuum cleaner with a dust bag assembly, which includes a body with a body cavity, an air inlet pipe and a handle, a dust bag assembly arranged in the body cavity, a motor base body fixedly connected to the bottom of the body, a motor arranged between the body and the motor base body, and a dust bag cover that opens / closes one end of the body cavity and fixes one end of the dust bag assembly, wherein the body is provided with an air inlet baffle at the bottom end of the body cavity, which is located downstream of the dust bag assembly and upstream of the motor.

[0005] On the basis of the above technical solution, the following subsidiary technical solutions are further included:

[0006] Preferably, the central axis of the air inlet pipe intersects the handle at an obtuse angle to achieve a trigger-gun-like grip, reduce user grip fatigue, and comply with ergonomics.

[0007] Preferably, the dust bag cover includes an air inlet hole connected to the air inlet pipe, a lock buckle connected to the body, an air inlet cavity located downstream of the air inlet hole, and a connecting portion located at the bottom of the air inlet cavity, so as to facilitate the removal and placement of the dust bag assembly.

[0008] Preferably, the product further includes a battery pack disposed on the top of the handle and adjacent to the dust bag cover to facilitate wireless use of the product.

[0009] Preferably, it also includes an air outlet cover located below the motor base, a front filter element arranged on the air outlet cover and upstream of the motor, and a rear filter element arranged on the air outlet cover and downstream of the motor, so as to facilitate regular replacement of the front and rear filters.

[0010] Preferably, the air outlet cover includes a retaining protrusion at one end, an unlocking buckle at the other end, and a plurality of air outlet holes corresponding to the rear filter element, so that the air outlet cover can be detachably arranged.

[0011] Preferably, the motor base includes a front air intake cavity located below the air intake baffle and upstream of the front filter element, and an air outlet grid corresponding to the rear filter element, so as to miniaturize the product and reasonably arrange the air duct.

[0012] Preferably, the central axis direction of the motor intersects the air inlet baffle at an acute angle, and the projection of the air inlet baffle at least partially overlaps with the projection of the motor, so as to miniaturize the product and reduce user fatigue when holding it.

[0013] The second technical solution of the present invention is: a handheld vacuum cleaner with a dust bag assembly, which includes a body with a body cavity, an air inlet pipe and a handle, a dust bag assembly arranged in the body cavity, a motor base body fixedly connected to the bottom of the body, a motor arranged between the body and the motor base body, a dust bag cover that opens / closes one end of the body cavity and fixes one end of the dust bag assembly, and a battery pack arranged at the top of the handle and adjacent to the dust bag cover, wherein the central axis direction of the air inlet pipe intersects with the handle at an obtuse angle.

[0014] The projection of the battery pack at least partially overlaps with the projection of the motor.

[0015] The advantages of the present invention are: dust cleaning is achieved by regularly replacing the dust bag, secondary pollution is reduced, and user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 is an exploded view of the present invention;

[0018] Figure 2 is an assembly diagram of the present invention;

[0019] Figure 3 is a cross-sectional view of the present invention;

[0020] Figure 4 It is a three-dimensional diagram of the air inlet baffle in the present invention. DETAILED DESCRIPTION

[0021] Example: Figure 1-4As shown, the present invention discloses a first embodiment of a handheld vacuum cleaner with a dust bag assembly, which includes a body 100 having a body cavity 112, an air inlet pipe 114 and a handle 140, a dust bag assembly 200 disposed in the body cavity 112, a motor base 160 fixedly connected to the bottom of the body 100, a motor 300 disposed between the body 100 and the motor base, a dust bag cover 150 that opens / closes one end of the body cavity 112 and fixes one end of the dust bag assembly 200, The battery pack 400 is located at the top of the handle 140 and adjacent to the dust bag cover 150; the air outlet cover 170 is located below the motor base 160; the front filter 500 is located on the air outlet cover 170 and upstream of the motor 300; and the rear filter 510 is located on the air outlet cover 170 and downstream of the motor 300. The body 100 is provided with an air inlet baffle 180 at the bottom end of the body cavity 112, downstream of the dust bag assembly and upstream of the motor 300. The central axis of the air inlet duct 114 intersects the handle 140 at an obtuse angle.

[0022] The body 100 also includes a housing 110, a battery pack housing 120 adjacent to the housing 110 and located at the top of the handle 140, and a motor housing 130 located at the bottom of the handle 140 and partially housing the motor 300. The housing 110 defines a body cavity 112, and an air inlet duct 114 communicates with the body cavity 112. A fixing plate 102 is provided at the bottom of the body 100. The housing 110 is at least partially transparent or translucent to allow the user to identify the location of the dust bag assembly. The battery pack housing 120 not only partially houses the battery pack 400 but also includes a guide groove 122 for guiding the sliding insertion of the battery pack 400. The battery pack 400 is provided with guide ribs 420 that cooperate with the guide groove 122. The battery pack 400 is detachably connected to the battery pack housing 120 via an unlocking button 410. The handle 140 is provided with a trigger 142 for starting the motor 300. The dust bag cover 150 includes an air inlet hole 152 connected to the air inlet pipe 114, a lock 154 connected to the body 100, an air inlet cavity 156 located downstream of the air inlet hole 152, and a connecting portion 158 at the bottom of the air inlet cavity 156. The motor base 160 includes a front air inlet cavity 162 located below the air inlet baffle 180 and upstream of the front filter 500, and an air outlet grille 164 corresponding to the rear filter 510. The air outlet cover 170 includes a retaining protrusion 172 at one end, an unlocking latch 174 at the other end, and a plurality of air outlet holes 176 corresponding to the rear filter 510. The air inlet baffle 180 includes an outer edge 182, three retaining tabs 184 positioned outside the outer edge 182 and snap-connected to the bottom of the housing 100, a plurality of spacing ribs 186 within the outer edge 182, a plurality of honeycomb holes 188 formed by adjacent spacing ribs 186, and screw-connected fixing holes 189 corresponding to the fixing tabs 102. The spacing ribs 186 are regular or irregular in shape and have varying thicknesses to ensure nonlinear or single-plane contact with the dust bag assembly, maximizing contact across multiple surfaces to increase the dust bag's air outlet area and prevent clogging. The cross-sectional area of the air inlet baffle 180 is larger than that of the front airflow cavity 162 to constrict airflow.

[0023] The central axis of the motor 300 intersects the air inlet baffle 180 at an acute angle, and the projection of the air inlet baffle 180 at least partially overlaps with the projection of the motor 300 .

[0024] The motor 300 is preferably a brushed DC motor or a brushless DC motor.

[0025] The battery pack 400 is preferably a lithium battery pack, but may also be a nickel-metal hydride battery pack.

[0026] like Figure 1-4As shown, the present invention discloses a second embodiment of a handheld vacuum cleaner with a dust bag assembly, which includes a body 100 having a body cavity 112, an air inlet duct 114, and a handle 140; a dust bag assembly 200 disposed in the body cavity 112; a motor base 160 fixedly connected to the bottom of the body 100; a motor 300 disposed between the body 100 and the motor base; a dust bag cover 150 that opens / closes one end of the body cavity 112 and fixes one end of the dust bag assembly 200; and a battery pack 400 disposed at the top of the handle 140 and adjacent to the dust bag cover 150. The central axis of the air inlet duct 114 intersects the handle 140 at an obtuse angle. The projection of the battery pack 400 at least partially overlaps with the projection of the motor 300. The handle 140 extends through the battery pack 400.

[0027] The body 100 also includes a housing 110, a battery pack housing 120 adjacent to the housing 110 and located at the top of the handle 140, and a motor housing 130 located at the bottom of the handle 140 and partially housing the motor 300. The housing 110 defines a body cavity 112, and an air inlet duct 114 communicates with the body cavity 112. A fixing plate 102 is provided at the bottom of the body 100. The housing 110 is at least partially transparent or translucent to allow the user to identify the location of the dust bag assembly. The battery pack housing 120 not only partially houses the battery pack 400 but also includes a guide groove 122 for guiding the sliding insertion of the battery pack 400. The battery pack 400 is provided with guide ribs 420 that cooperate with the guide groove 122. The battery pack 400 is detachably connected to the battery pack housing 120 via an unlocking button 410. The handle 140 is provided with a trigger 142 for starting the motor 300. The dust bag cover 150 includes an air inlet hole 152 connected to the air inlet pipe 114, a lock 154 connected to the body 100, an air inlet cavity 156 located downstream of the air inlet hole 152, and a connecting portion 158 at the bottom of the air inlet cavity 156. The motor base 160 includes a front air inlet cavity 162 located below the air inlet baffle 180 and upstream of the front filter 500, and an air outlet grille 164 corresponding to the rear filter 510. The air outlet cover 170 includes a retaining protrusion 172 at one end, an unlocking latch 174 at the other end, and a plurality of air outlet holes 176 corresponding to the rear filter 510. The air inlet baffle 180 includes an outer edge 182, three retaining tabs 184 positioned outside the outer edge 182 and snap-connected to the bottom of the housing 100, a plurality of spacing ribs 186 within the outer edge 182, a plurality of honeycomb holes 188 formed by adjacent spacing ribs 186, and screw-connected fixing holes 189 corresponding to the fixing tabs 102. The spacing ribs 186 are regular or irregular in shape and have varying thicknesses to ensure nonlinear or single-plane contact with the dust bag assembly, maximizing contact across multiple surfaces to increase the dust bag's air outlet area and prevent clogging. The cross-sectional area of the air inlet baffle 180 is larger than that of the front airflow cavity 162 to constrict airflow.

[0028] The central axis of the motor 300 intersects the air inlet baffle 180 at an acute angle, and the projection of the air inlet baffle 180 at least partially overlaps with the projection of the motor 300. The handle 140 extends through the battery pack 400.

[0029] The motor 300 is preferably a brushed DC motor or a brushless DC motor.

[0030] The battery pack 400 is preferably a lithium battery pack, but may also be a nickel-metal hydride battery pack.

[0031] The advantages of the present invention are: dust cleaning is achieved by regularly replacing the dust bag, secondary pollution is reduced, and user experience is improved.

[0032] Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A handheld vacuum cleaner with a dust bag assembly, characterized in that It includes: A machine body (100) comprising a machine body cavity (112), an air inlet pipe (114) and a handle (140), a dust bag assembly (200) disposed in the machine body cavity (112), a motor base (160) fixedly connected to the bottom of the machine body (100), a motor (300) disposed between the machine body (100) and the motor base, a dust bag cover (150) for opening / closing one end of the machine body cavity (112) and fixing one end of the dust bag assembly (200), and a dust bag cover (150) disposed at the top of the handle (140) and connected to the dust bag cover (150). An adjacent battery pack (400), wherein the body (100) is provided with an air inlet baffle (180) at the bottom end of the body cavity (112), which is located downstream of the dust bag assembly and upstream of the motor (300), and the central axis direction of the air inlet pipe (114) intersects with the handle (140) at an obtuse angle; wherein the central axis direction of the motor (300) intersects with the air inlet baffle (180) at an acute angle, and the projection of the air inlet baffle (180) at least partially overlaps with the projection of the motor (300); in The projection of the battery pack (400) at least partially overlaps with the projection of the motor (300).

2. The handheld vacuum cleaner according to claim 1, wherein: The dust bag cover comprises an air inlet hole (152) connected to the air inlet pipe (114), a lock buckle (154) connected and matched with the body (100), an air inlet cavity (156) located downstream of the air inlet hole (152), and a connecting portion (158) located at the bottom of the air inlet cavity (156).

3. The handheld vacuum cleaner according to claim 1, characterized in that The invention also includes an air outlet cover plate (170) located below the motor base (160), a front filter element (500) arranged on the air outlet cover plate (170) and located upstream of the motor (300), and a rear filter element (510) arranged on the air outlet cover plate (170) and located downstream of the motor (300).

4. The handheld vacuum cleaner according to claim 3, wherein: The air outlet cover plate (170) comprises a holding protrusion (172) at one end, an unlocking buckle (174) at the other end, and a plurality of air outlet holes (176) corresponding to the rear filter element (510).

5. The handheld vacuum cleaner according to claim 4, characterized in that: The motor base (160) comprises a front airflow cavity (162) located below the air inlet baffle (180) and upstream of the front filter element (500), and an air outlet grid (164) corresponding to the rear filter element (510).

6. The handheld vacuum cleaner according to claim 5, characterized in that: The air inlet baffle (180) comprises a baffle outer edge (182), three retaining pieces (184) arranged outside the baffle outer edge (182) and snap-connected to the bottom of the body (100), a plurality of spacing ribs (186) located within the baffle outer edge (182), a plurality of honeycomb holes (188) formed by adjacent spacing ribs (186), and fixing holes (189) arranged corresponding to the fixing pieces (102) and connected by screws.

7. The handheld vacuum cleaner according to claim 6, wherein: The cross-sectional area of the air inlet partition (180) is larger than the cross-sectional area of the front air inlet cavity (162).

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