CN118177646B - Handheld dust collector convenient to clearance - Google Patents

Abstract

The present invention relates to the field of household cleaning products, and in particular to a handheld vacuum cleaner that is easy to clean. The technical problem is that compared with dust, grease has greater adhesion, and the suction force of a household vacuum cleaner is limited, so it is difficult to clean a screen window with grease, and the cleaning effect is poor. In addition, since the edge of the screen window has a small deformable amount, when the vacuum cleaner cleans the edge of the screen window, the continuous vibration of the screen window easily causes the edge part and the frame to fall off, thereby causing damage to the screen window. The technical implementation scheme of the present invention is: a handheld vacuum cleaner that is easy to clean, including a cover shell and a filter element, etc.; the filter element is installed in the cover shell. The present invention controls the air to enter from the air suction hole, the air flow channel is small, and the air flow rate is greater, so that the grease is easily sucked into the cleaning roller, the cleaning ability of the grease on the screen window is improved, and the grease and detergent sucked into the cleaning roller are intercepted by a sponge rod, so as to avoid the grease adhering to the air intake channel and being difficult to clean, thereby reducing the difficulty of cleaning the vacuum cleaner.

Description

A handheld vacuum cleaner that is easy to clean

Technical Field

The invention relates to the field of household cleaning products, and in particular to a handheld vacuum cleaner which is easy to clean.

Background Art

Chinese patent application number CN203122283U: Screen vacuum cleaner, the device discloses a vacuum cleaner for removing dust from screens, the bristles of the roller contact the screen to remove the dust, so as to achieve efficient cleaning of the dust on the screen, but there is a lot of oil smoke in the kitchen, the surface of the screen will adhere to more oil stains, and absorb more dust, thereby forming oil stains with strong adhesion, compared with the screen only adhering to the dust, cleaning the oil stains requires spraying detergent to soften the oil stains, and the suction force required to remove the oil stains is greater, but the suction force of household vacuum cleaners is limited, for this reason, it is difficult to clean the screen with oil stains with conventional vacuum cleaners, and the cleaning effect is poor, further, due to the small deformability of the edge of the screen, when the vacuum cleaner cleans to the edge of the screen, the continuous vibration of the screen is likely to cause the edge to fall off the frame, thereby causing damage to the screen.

Summary of the invention

In order to overcome the disadvantages that grease has greater adhesion than dust and household vacuum cleaners have limited suction power, cleaning screen windows with grease is difficult and has a poor cleaning effect, and since the edge of the screen window has a small deformable amount, when the vacuum cleaner cleans the edge of the screen window, the continuous vibration of the screen window can easily cause the edge to fall off the frame, thereby causing damage to the screen window, the present invention provides a handheld vacuum cleaner that is easy to clean.

The technical implementation scheme of the present invention is: a handheld vacuum cleaner that is easy to clean, including a housing, a filter element, a dust hood, a power assembly and a cleaning roller; a cavity is arranged in the housing; a dust removal fan is installed in the cavity; a filter element is installed in the housing; a dust hood is arranged on the front side of the housing; a power assembly is installed on the dust hood; a cleaning roller is connected to the power assembly; the cleaning roller is driven to rotate by the power assembly; bristles are arranged on the cleaning roller; an air inlet channel is arranged in the housing; the air inlet channel is located between the filter element and the dust hood; a frame portion is arranged on the screen window; a sealing strip is installed in the screen window; a plurality of screen meshes are opened on the screen window; and a retaining ring is also included , slider, air duct and edge protection system; the interior of the cleaning roller is arranged as a hollow structure, and a number of air suction holes are provided on the cleaning roller for cleaning grease on the screen window; a retaining ring is installed in the cover shell; a through hole is provided in the middle of the retaining ring; a slider for controlling the air flow direction in the dust hood is slidably connected in the cover shell; an air duct is connected between the interior of the cleaning roller and the air inlet channel in the cover shell; when the slider is in the initial position, the slider blocks the connection between the air duct and the air inlet channel; when the slider slides to fit the retaining ring, the slider blocks the through hole in the middle of the retaining ring; an edge protection system is installed on the dust hood to prevent the edge of the screen window from detaching from the frame.

Optionally, the cleaning roller is configured as a quick-release structure; a first end cover is disposed on the upper side of the dust hood, and a second end cover is disposed on the lower side of the dust hood.

Optionally, a baffle is also included; a ventilation pipe is fixedly connected to the lower side of the first end cover of the dust hood, and the interior of the ventilation pipe is connected to the air guide pipe through the first end cover; a plurality of ventilation holes are opened on the surface of the ventilation pipe; a baffle that increases the air flow rate at the suction hole is fixedly connected to the lower side of the first end cover of the dust hood; the baffle is slidably connected to the cleaning roller.

Optionally, it also includes a sponge rod and a supporting plate; the sponge rod for intercepting grease and detergent is rotatably connected to the ventilation pipe of the dust cover; the sponge rod is connected to the air duct through the ventilation hole; and the supporting plate is fixedly connected to the lower side of the sponge rod.

Optionally, it also includes a convex rod; a convex portion is arranged on the supporting plate; a convex rod is fixedly connected to the inner side of the cleaning roller to prevent uneven thickness of oil stains attached to the sponge rod; the convex rod is made of elastic material; the convex rod is in sliding contact with the convex portion of the supporting plate.

Optionally, a scraper is also included; the scraper is fixedly connected to the inner side of the baffle to prevent the sponge rod from being in a water-saturated state.

Optionally, the edge protection system includes a limit plate and an air bag; a plurality of limit plates are fixedly connected to the front side of the dust hood to reduce the pressure on the edge of the screen; an air bag is installed between the plurality of limit plates and the dust hood; the air bag is connected to the air outlet of the dust removal fan in the cavity through an air supply pipe in the cover shell; and a convex arc portion is provided on each limit plate.

Optionally, the edge protection system also includes a fixing frame and an expansion rod; the fixing frame is fixedly connected to the inner side of the dust hood; the interior of the fixing frame is connected to the airbag; a number of expansion rods are fixedly connected to the fixing frame to prevent the edge of the screen window from falling off; the interior of the expansion rod is hollow and connected to the interior of the fixing frame; the expansion rod is made of elastic material; the expansion rod is configured to be retractable in the front-to-back direction and can expand in the radial direction of the expansion rod.

Optionally, the front end of the expansion rod is configured to be conical.

Optionally, when the expansion rod is in an expanded state, two adjacent expansion rods are in a state of being in contact with each other.

Compared with the prior art, the present invention has the following advantages:

By controlling the air to enter from the air suction hole, the air flow channel is small and the air flow velocity is greater, so that the grease is easily sucked into the cleaning roller, thereby improving the cleaning ability of the grease on the screen window;

The sponge stick intercepts the oil and detergent sucked into the cleaning roller, thereby preventing the oil from entering the air intake passage through the air duct, thereby preventing the oil from adhering to the air intake passage and being difficult to clean, and reducing the difficulty of cleaning the vacuum cleaner;

The sponge bar is squeezed by the scraper, so that the detergent absorbed by the sponge bar is squeezed out, and then the detergent flows along the scraper to the lower side of the cleaning roller, thereby preventing the sponge bar from being in a water-saturated state;

By clamping the expansion rod in the mesh of the screen, the part of the screen window clamped by the expansion rod is in a stationary state, reducing the vibration amplitude of the screen window, thereby reducing the deformation of the edge of the screen window, thereby preventing the edge of the screen window from falling off;

When the expansion rod is in an expanded state, two adjacent expansion rods are in a mutually fitted state, thereby preventing the mesh of the yarn from being compressed and deformed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a handheld vacuum cleaner for easy cleaning according to the present invention;

FIG2 is a partial three-dimensional structural schematic diagram of the present invention;

Fig. 3 is a partial cross-sectional view of the present invention;

FIG4 is a cross-sectional view of the dust cover and cleaning roller assembly of the present invention;

FIG5 is a schematic diagram of the three-dimensional structure of the baffle, sponge rod and cleaning roller combination of the present invention;

FIG6 is a schematic diagram of the three-dimensional structure of the cleaning roller, the supporting plate and the scraper assembly of the present invention;

FIG7 is an enlarged view of the area A in FIG6 of the present invention;

FIG8 is a schematic diagram of the three-dimensional structure of the cleaning roller and baffle assembly of the present invention;

Fig. 9 is a state diagram of cleaning the screen window of the present invention;

FIG10 is a schematic diagram of the three-dimensional structure of the edge protection system of the present invention;

FIG11 is a schematic diagram of a three-dimensional structure of a dust cover and an air bag combination according to the present invention;

FIG. 12 is a schematic diagram of the three-dimensional structure of the expansion rod of the present invention.

The markings of the components in the accompanying drawings are as follows: 1-cover, 1001-cavity, 1002-air inlet channel, 2-filter element, 3-dust hood, 3001-first end cover, 3002-second end cover, 3003-ventilation pipe, 4-cleaning roller, 4001-intake hole, 5-blocking ring, 6-slider, 7-air guide pipe, 8-screen window, 8001-frame part, 8002-sealing strip, 8003-gauze mesh, 201-motor, 202-baffle, 203-sponge rod, 204-support plate, 20401-protrusion, 205-protruding rod, 206-scraper, 301-limiting plate, 30101-convex arc part, 302-air bag, 303-fixing frame, 304-expansion rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Example 1

As shown in Fig. 1 to Fig. 9, a handheld vacuum cleaner which is easy to clean comprises a housing 1, a filter element 2, a dust hood 3, a power assembly and a cleaning roller 4; a cavity 1001 is arranged in the housing 1; a dust removal fan is installed in the cavity 1001; a filter element 2 is installed in the housing 1; a dust hood 3 is arranged on the front side of the housing 1; a power assembly is installed on the dust hood 3; a cleaning roller 4 is connected to the power assembly; the cleaning roller 4 is driven to rotate by the power assembly; bristles are arranged on the cleaning roller 4; an air inlet channel 1002 is arranged in the housing 1; the air inlet channel 1002 is located between the filter element 2 and the dust hood 3; a frame portion 8001 is arranged on the screen window 8; a sealing strip 8002 is installed in the screen window 8; a plurality of screen meshes 8003 are opened on the screen window 8;

It also includes a retaining ring 5, a slider 6, an air duct 7 and an edge protection system; the interior of the cleaning roller 4 is set as a hollow structure, and a plurality of air suction holes 4001 are opened on the cleaning roller 4; a retaining ring 5 is installed in the cover shell 1; a through hole is opened in the middle of the retaining ring 5; a slider 6 is slidably connected in the cover shell 1; an air duct 7 is connected between the interior of the cleaning roller 4 and the air inlet channel 1002 in the cover shell 1; when the slider 6 is in the initial position, the slider 6 blocks the connection between the air duct 7 and the air inlet channel 1002; when the slider 6 slides to fit the retaining ring 5, the slider 6 blocks the through hole in the middle of the retaining ring 5; an edge protection system is installed on the dust hood 3, and the edge of the screen window 8 is protected by the edge protection system to prevent the edge of the screen window 8 from being damaged.

The power assembly includes a motor 201; the motor 201 is fixedly connected to the lower side of the dust cover 3, and the output end of the motor 201 is fixedly connected to the cleaning roller 4. The cleaning roller 4 is driven by the motor 201 to rotate counterclockwise when viewed from top to bottom.

The cleaning roller 4 is configured as a quick-release structure; a first end cover 3001 is disposed on the upper side of the dust hood 3 , and a second end cover 3002 is disposed on the lower side of the dust hood 3 .

It also includes a baffle 202; a ventilation pipe 3003 is fixedly connected to the lower side of the first end cover 3001 of the dust hood 3, and the interior of the ventilation pipe 3003 is connected to the air guide pipe 7 through the first end cover 3001; a plurality of ventilation holes are opened on the surface of the ventilation pipe 3003; a baffle 202 is fixedly connected to the lower side of the first end cover 3001 of the dust hood 3; the baffle 202 is slidably connected to the cleaning roller 4.

It also includes a sponge rod 203 and a supporting plate 204; the sponge rod 203 is rotatably connected to the ventilation pipe 3003 of the dust cover 3; the sponge rod 203 is connected to the air guide pipe 7 through the ventilation hole; and the supporting plate 204 is fixedly connected to the lower side of the sponge rod 203.

It also includes a protruding rod 205; a protruding portion 20401 is provided on the supporting plate 204; the protruding rod 205 is fixedly connected to the lower inner side of the cleaning roller 4; the protruding rod 205 is made of elastic material; the protruding rod 205 is in sliding contact with the protruding portion 20401 of the supporting plate 204.

A scraper 206 is also included; the scraper 206 is fixedly connected to the inner side of the baffle 202 .

When it is necessary to clean the dust on the surface of the screen window 8, the cover shell 1 is manually lifted up to make the dust hood 3 fit on the surface of the screen window 8, so that the cleaning roller 4 fits on the surface of the screen window 8. Based on the view from top to bottom, the motor 201 is controlled to drive the cleaning roller 4 to rotate counterclockwise, so that the bristles continuously brush the surface of the screen window 8 to separate the dust from the screen window 8. At the same time, the dust removal fan in the cavity 1001 is controlled to start, so that the air flow continuously flows from the dust hood 3 into the air inlet channel 1002, and then the dust on the screen window 8 is sucked into the cover shell 1, and the dust is intercepted and collected through the filter element 2, so as to facilitate the subsequent dust cleaning. When there is grease attached to the screen window 8, the cleaning agent is first sprayed on the surface of the screen window 8 to soften the grease on the surface of the screen window 8, and then the slider 6 is pushed forward to make the slider 6 contact and squeeze the retaining ring 5, and the slider 6 blocks the through hole in the middle of the retaining ring 5, thereby blocking the connection between the dust hood 3 and the air inlet channel 1002, and making the cleaning roller 4 The interior is connected with the air inlet channel 1002 through the air duct 7. At this time, the air from the dust hood 3 enters the air duct 7 through the air suction hole 4001 of the cleaning roller 4, and then the cleaning roller 4 is attached to the surface of the screen window 8. The grease on the surface of the screen window 8 enters the interior of the cleaning roller 4 through the air suction hole 4001. Since the suction force of the dust removal fan remains unchanged, compared with the case where the air directly enters the air inlet channel 1002 from the dust hood 3, the air flow channel is smaller and the air flow rate is greater when the air enters from the air suction hole 4001, which facilitates the suction of grease into the cleaning roller 4, thereby improving the cleaning ability of the grease on the screen window 8. On this basis, when the cleaning roller 4 rotates, the air suction hole 4001 is partially blocked by the control baffle 202, so as to ensure that only the air suction hole 4001 facing the side of the screen window 8 is connected with the outside of the cleaning roller 4, thereby further increasing the air flow rate at the air suction hole 4001. On this basis, the grease and detergent sucked into the cleaning roller 4 are intercepted by the sponge rod 203, thereby preventing the grease from entering the cleaning roller 4. The dirt enters the air guide pipe 7 through the vent pipe 3003 and then enters the air inlet channel 1002, thereby preventing the oil dirt from adhering to the air inlet channel 1002 and being difficult to clean, reducing the difficulty of cleaning the vacuum cleaner, and absorbing the detergent through the sponge rod 203 to prevent the detergent from entering the air inlet channel 1002 and adhering to the surface of the filter element 2, thereby wetting the surface of the filter element 2 and reducing the dust filtering efficiency. Furthermore, based on the view from top to bottom, when the cleaning roller 4 rotates counterclockwise, it drives the convex rod 205 to rotate counterclockwise. When the convex rod 205 contacts and squeezes the protrusion 20401, it drives the supporting plate 204 to rotate counterclockwise, causing the sponge rod 203 to rotate counterclockwise, and then the convex rod 205 is bent by force, so that the convex rod 205 is separated from the protrusion 20401, and the cleaning roller 4 continues to rotate until it squeezes the protrusion 20401 again, so that the sponge rod 203 continues to rotate counterclockwise, thereby facilitating the uniform attachment of oil dirt to the surface of the sponge rod 203, avoiding The uneven thickness of the grease attached to the sponge rod 203 leads to a reduced grease interception effect. Furthermore, based on the view from top to bottom, when the sponge rod 203 rotates counterclockwise, the scraper 206 squeezes the sponge rod 203, so that the detergent absorbed by the sponge rod 203 is squeezed out, and then the detergent flows along the scraper 206 to the lower side of the inside of the cleaning roller 4, thereby preventing the sponge rod 203 from being in a water-saturated state. On this basis, the cleaning roller 4 is configured as a quick-release structure. When the screen window 8 is cleaned, the second end cover 3002 is pulled downward to separate the second end cover 3002 from the dust cover 3. At the same time, the cleaning roller 4 and the motor 201 move downward synchronously with the second end cover 3002, so that the cleaning roller 4 is separated from the first end cover 3001, thereby facilitating the cleaning of the inside of the cleaning roller 4, and then the sponge rod 203 is removed from the first end cover 3001, so as to facilitate the separate cleaning of the sponge rod 203 and improve the cleaning effect of the vacuum cleaner.

Example 2

On the basis of Example 1, as shown in Figures 10-12, the edge protection system includes a limiting plate 301 and an airbag 302; three limiting plates 301 are fixedly connected to the front side of the dust hood 3; an airbag 302 is installed between the three limiting plates 301 and the dust hood 3; the airbag 302 is connected to the air outlet of the dust removal fan in the cavity 1001 through the air supply pipeline in the cover shell 1; and a convex arc portion 30101 is provided on each limiting plate 301.

The edge protection system also includes a fixing frame 303 and an expansion rod 304; the fixing frame 303 is fixedly connected to the inner side of the dust hood 3; the interior of the fixing frame 303 is connected to the airbag 302; a plurality of expansion rods 304 are fixedly connected to the fixing frame 303; the expansion rods 304 are hollow inside and are connected to the interior of the fixing frame 303; the expansion rods 304 are made of elastic material; the expansion rods 304 are configured to be retractable in the front-to-back direction and to be expandable in the radial direction of the expansion rods 304.

The front end of the expansion rod 304 is configured to be conical.

When the expansion rods 304 are in an expanded state, two adjacent expansion rods 304 are in a state of being in contact with each other.

When the cleaning roller 4 cleans the surface of the screen window 8, the surface of the screen window 8 is constantly vibrating, especially when the cleaning roller 4 contacts the edge of the screen window 8. Since the deformation at the edge of the screen window 8 is small, long-term vibration can easily cause the edge of the screen window 8 to separate from the frame portion 8001, causing damage to the screen window 8. In addition, the cleaning roller 4 constantly shakes the edge of the screen window 8, which can easily cause the sealing strip 8002 to separate. Therefore, when the cleaning roller 4 cleans the edge of the screen window 8, the control button of the cover shell 1 is pressed first to make the dust removal fan in the cavity 1001 inflate the airbag 302 and The airbag 302 is expanded, and the limiting plate 301 is bent toward the frame portion 8001, so as to fit the surface of the frame portion 8001, thereby preventing the dust cover 3 from continuing to squeeze the surface of the screen window 8, thereby reducing the pressure on the edge of the screen window 8. On this basis, the convex arc portion 30101 fits the sealing strip 8002, reducing the pressure on the sealing strip 8002, and preventing the sealing strip 8002 from being separated due to squeezing. Further, when the airbag 302 is inflated, the air in the airbag 302 flows through the fixing frame 303 and then enters the interior of the expansion rod 304. The expansion rod 304 is inflated and extended toward the front side, so that the expansion rod 304 passes through the mesh 8003, and then the expansion rod 304 continues to be inflated and expands in the radial direction of the expansion rod 304, so that the expansion rod 304 is stuck in the mesh 8003. At this time, the dust cover 3 is in a static state, thereby ensuring that the fixing frame 303 and the expansion rod 304 are in a static state, so that the part of the screen 8 stuck by the expansion rod 304 is in a static state, reducing the vibration amplitude of the screen 8, thereby reducing the deformation of the edge of the screen 8, and preventing the edge of the screen 8 from falling off. On this basis, the front end of the expansion rod 304 is set to be conical, so as to facilitate the expansion rod 304 to be inserted into the mesh 8003. On this basis, when the expansion rod 304 is in an expanded state, two adjacent expansion rods 304 are in a mutually fitted state, thereby preventing the mesh 8003 from being compressed and deformed. When the edge of the screen window 8 is cleaned, the air bag 302 is stopped from being inflated, and the air in the air bag 302 is quickly extracted, so that the expansion rod 304 contracts and is separated from the mesh 8003, thereby facilitating the movement of the dust hood 3.

While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims (7)

1. A handheld dust collector convenient to clean comprises a housing (1), a filter element (2), a dust collection cover (3), a power component and a cleaning roller (4); a cavity (1001) is arranged in the housing (1); a dust removal fan is arranged in the cavity (1001); a filter element (2) is arranged in the housing (1); a dust hood (3) is arranged at the front side of the housing (1); a power assembly is arranged on the dust hood (3); the power component is connected with a cleaning roller (4); the cleaning roller (4) is driven to rotate by the power component; the cleaning roller (4) is provided with brush hair; an air inlet channel (1002) is arranged in the housing (1); the air inlet channel (1002) is positioned between the filter element (2) and the dust hood (3); a frame part (8001) is arranged on the screen window (8); a sealing rubber strip (8002) is arranged in the screen window (8); a plurality of screen holes (8003) are arranged on the screen window (8); the method is characterized in that: the device also comprises a baffle ring (5), a sliding block (6), an air duct (7) and an edge protection system; the cleaning roller (4) is internally provided with a hollow structure, and a plurality of suction holes (4001) which are convenient for cleaning oil dirt on the screen window (8) are arranged on the cleaning roller (4); a baffle ring (5) is arranged in the housing (1); the middle part of the baffle ring (5) is provided with a through hole; a sliding block (6) for controlling the air flow direction in the dust hood (3) is connected in a sliding manner in the housing (1); an air duct (7) is communicated between the inside of the cleaning roller (4) and an air inlet channel (1002) in the housing (1); when the sliding block (6) is positioned at the initial position, the sliding block (6) blocks the communication between the air duct (7) and the air inlet channel (1002); when the sliding block (6) slides to be attached to the baffle ring (5), the sliding block (6) plugs the through hole in the middle of the baffle ring (5); an edge protection system for preventing the edge part of the screen window (8) from separating from the frame part (8001) is arranged on the dust hood (3);

The cleaning roller (4) is arranged in a quick-dismantling structure; a first end cover (3001) is arranged on the upper side of the dust hood (3), and a second end cover (3002) is arranged on the lower side of the dust hood (3);

The device also comprises a baffle plate (202); the lower side of a first end cover (3001) of the dust hood (3) is fixedly connected with a vent pipe (3003), and the interior of the vent pipe (3003) is communicated with an air duct (7) through the first end cover (3001); a plurality of vent holes are formed in the surface of the vent pipe (3003); a baffle plate (202) for increasing the air flow rate at the suction hole (4001) is fixedly connected to the lower side of the first end cover (3001) of the dust hood (3); the baffle plate (202) is in sliding connection with the cleaning roller (4);

The device also comprises a sponge rod (203) and a bearing plate (204); a sponge rod (203) for intercepting oil dirt and cleaning agent is rotatably connected to a vent pipe (3003) of the dust hood (3); the sponge rod (203) is communicated with the air duct (7) through an air vent; the lower side of the sponge rod (203) is fixedly connected with a supporting plate (204).

2. A hand-held cleaner for facilitating cleaning as defined in claim 1, wherein: also comprises a convex rod (205); a convex part (20401) is arranged on the bearing plate (204); a convex rod (205) for avoiding uneven thickness of the oil dirt attached to the sponge rod (203) is fixedly connected to the inner side of the cleaning roller (4); the convex rod (205) is made of elastic materials; the protruding rod (205) is in sliding contact with the protruding part (20401) of the supporting plate (204).

3. A hand-held cleaner for facilitating cleaning as defined in claim 1, wherein: the scraper (206) is also included; the inner side of the baffle plate (202) is fixedly connected with a scraping plate (206) for preventing the sponge rod (203) from being in a water absorption saturation state.

4. A hand-held cleaner for facilitating cleaning as defined in claim 1, wherein: the edge protection system comprises a limiting plate (301) and an air bag (302); a plurality of limiting plates (301) for reducing the pressure applied to the edge of the screen window (8) are fixedly connected to the front side of the dust hood (3); an air bag (302) is commonly arranged between the plurality of limiting plates (301) and the dust hood (3); the air bag (302) is communicated with an air outlet of a dust removal fan of the cavity (1001) through an air transmission pipeline in the housing (1); each limiting plate (301) is provided with a convex arc part (30101).

5. A hand-held cleaner for facilitating cleaning as defined in claim 4, wherein: the edge protection system also comprises a fixing frame (303) and an expansion rod (304); a fixing frame (303) is fixedly connected to the inner side of the dust hood (3); the inside of the fixing frame (303) is communicated with the air bag (302); a plurality of expansion rods (304) for preventing the edges of the screen window (8) from falling off are fixedly connected on the fixing frame (303); the expansion rod (304) is hollow and is communicated with the inside of the fixing frame (303); the expansion rod (304) is made of elastic materials; the expansion rod (304) is provided so as to be expandable and contractible in the front-rear direction, and is expandable in the radial direction of the expansion rod (304).

6. A hand-held cleaner for facilitating cleaning as defined in claim 5, wherein: the front end of the expansion rod (304) is conical.

7. A hand-held cleaner for facilitating cleaning as defined in claim 6, wherein: when the expansion rods (304) are in an expansion state, two adjacent expansion rods (304) are in a mutually attached state.