CN219126172U - Dust collector - Google Patents

Abstract

The utility model provides a dust collector, which comprises a dust cup, a suction pipe fitting and a dust cup cover. One end of the dust cup cover is movably connected with the dust cup, the other end of the dust cup cover is provided with a buckling key, the dust cup cover is provided with a groove, and the first end of the buckling key is buckled with the groove. The dust cup is provided with the lock and presses the keyway, is provided with first fixing device on the lock button, is provided with the second fixing device in the lock and presses the keyway, and first fixing device and second fixing device mutually support and are used for pressing the rotatable coupling of lock button in the lock and presses the keyway. An elastic piece is arranged between the second end of the buckling key and the buckling key groove, a boss is arranged on the buckling key, and the boss is attached to the buckling key groove to limit the inclination of the buckling key, so that the buckling key is basically flush with the surface of the dust cup under the action of the elastic piece. According to the dust collector provided by the utility model, the buckling keys are flush with the surface of the dust cup, so that the surface looks neat, and when the buckling is finished, the buckling is finished by the sound prompt of 'click', so that the user experience is improved.

Description

Dust collector

Technical Field

The utility model belongs to the technical field of cleaning appliances, and particularly relates to a dust collector.

Background

Along with the development of economy and the progress of society, the living standard of family is constantly improved, and the dust catcher also is used more and more in the life, and the dust bowl cover of dust catcher flip formula at present, structural mode all is through the mode of button with the spring, and technical defect is that the spring can push the button to the biggest position, and the button the place ahead is not spacing, leads to the button top too to be less than the profile, and unsmooth when making the dust bowl cover above down detain, the feel is poor, perhaps withstands the dust bowl cover, and simultaneously under the button natural state, the button is the tilt state, also unaesthetic.

Many dust collector brushes at present in the market, most all have a drawback, and the dust collector is in the use area brush accessory can shake and send different degree abnormal sound, experiences very poor. The dust blocking sheet in the dust cup cover of the traditional dust collector is fixed in a screw or hardware card mode, or is integrated with the in-mold injection molding process, so that the manufacturing cost is high, the screw or the assembly card is required to be additionally used, and the in-mold injection molding process is high in cost.

Disclosure of Invention

The present utility model aims to provide a dust collector to solve at least one of the above technical problems. In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the dust collector comprises a dust cup, a suction pipe fitting and a dust cup cover for opening or closing the dust cup.

The dust cup cover is characterized in that one end of the dust cup cover is movably connected with the dust cup, a buckling key is arranged at the other end of the dust cup cover, the buckling key is used for locking or loosening the dust cup cover, a groove is formed in the first end of the dust cup cover, corresponding to the buckling key, and the first end of the buckling key is buckled with the groove.

The dust cup is characterized in that a buckling key groove is formed in the edge of the dust cup, a first fixing device is arranged on the buckling key, a second fixing device is arranged in the buckling key groove, and the first fixing device and the second fixing device are matched with each other and used for rotationally coupling the buckling key to the buckling key groove.

The second end of lock button with lock is provided with the elastic component between pressing the keyway, be provided with the boss on the lock button, the boss with lock presses the keyway and laminates mutually in order to restrict the slope of lock button, makes the lock button be in under the effect of elastic component with the surface of dirt cup is basic flush.

In the above technical scheme, preferably, the pressing stroke space of the buckling key is larger than the engaging stroke space of the buckling key and the groove, so that the dust cup cover is turned up when the buckling key is pressed down.

In the above technical solution, preferably, a guiding inclined plane is provided between the groove and the edge of the dust cup cover, so that the fastening key slides into the groove along the guiding inclined plane.

In the above technical scheme, preferably, the first end of the buckling key is provided with a chamfer structure for guiding the buckling key to compress the elastic piece when the dust cup cover is pressed downwards.

In the above technical solution, preferably, the suction pipe member is a hollow pipe, a first end of the suction pipe member is coupled to the dust cup cover and used for conveying the objects in the suction pipe member into the dust cup, and a second end of the suction pipe member is provided with a suction nozzle.

The brush piece is sleeved on the suction nozzle and comprises a brush frame and brush hair arranged on the brush frame.

The brush holder comprises a suction pipe fitting and a brush holder, wherein a positioning device and a limiting device are arranged between the suction pipe fitting and the brush holder, the positioning device is used for positioning the brush hair at the front end of the suction nozzle, and the limiting device is used for limiting the brush holder to shake along at least one direction when the brush hair is locked at the front end of the suction nozzle.

In the above technical scheme, preferably, the limiting device comprises a bone position inside the brush frame, a limiting protrusion on the back of the suction pipe, and a limiting groove arranged at a position of the brush frame corresponding to the limiting protrusion, wherein the limiting protrusion and the limiting groove are engaged with each other when the brush hair is locked at the front end of the suction nozzle, the bone position comprises a plurality of microprotrusions, and the microprotrusions are extruded by the suction pipe when the brush frame is sleeved on the suction pipe.

In the above technical scheme, preferably, the connection part between the inside of the dust cup cover and the suction pipe piece is provided with a backflow preventing device, the backflow preventing device comprises a fixing groove and a dust blocking piece, and the dust blocking piece comprises a fixing end and a dust blocking end which are coupled with the fixing groove.

In the above technical solution, preferably, the size of the fixed end gradually decreases from the top of the fixed end to the bottom of the fixed end.

In the above technical solution, preferably, the dust-blocking sheet is an elastic dust-blocking sheet, and is used for resetting through self elastic force when the dust collector is closed, and an elongated slot is arranged at the opening and closing position of the dust-blocking sheet.

In the above technical scheme, preferably, a protrusion is disposed in the fixing groove, the protrusion is coupled with the fixing end, and a hole is disposed at the top of the fixing end.

The dust collector provided by the utility model has the main beneficial effects that: the boss is arranged on the buckling key, and the boss is attached to the buckling key groove to limit the inclination of the buckling key, so that the buckling key is basically flush with the surface of the dust cup under the action of the elastic piece. When the dust cup cover is buckled to the dust cup, the buckling keys cannot prop against the dust cup cover, and meanwhile the surface of the dust cup looks neat, so that user experience is improved.

Further, a groove is formed in the first end, corresponding to the buckling key, of the dust cup cover, and a guide inclined plane is formed between the groove and the edge of the dust cup cover and used for enabling the buckling key to slide into the groove along the guide inclined plane. Because the guiding inclined plane is arranged, the resistance of the dust cup cover is reduced when the dust cup cover is buckled downwards, and the first end of the buckling key slides into the groove to generate a click sound and feel, so that a user is prompted to complete buckling.

Further, a limiting device and a positioning device are arranged between the suction pipe fitting and the brush frame, the positioning device is used for positioning the brush hair at the front end of the suction nozzle, the limiting device is used for limiting the brush frame to shake along at least one direction when the brush hair is locked at the front end of the suction nozzle, and vibration and abnormal sound of the dust collector are reduced when the dust collector is used.

Further, the connection part between the inside of the dust cup cover and the suction pipe piece is provided with a backflow prevention device, the backflow prevention device comprises a fixing groove and a dust blocking piece, and the dust blocking piece is an elastic dust blocking piece and is used for resetting through self elasticity when the dust collector is closed. One end of the dust blocking piece inserted into the fixed groove is set as a fixed end, and one end of the dust blocking piece arranged on the suction pipe fitting is set as a dust blocking end. The fixing end can be directly pressed into the fixing groove to finish fixing, and additional screw procedures and in-mold injection molding processes are not needed, so that the cost and the installation time are saved.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional structure of a dust cup cover of the utility model;

FIG. 3 is a schematic cross-sectional view of the suction pipe and brush of the present utility model;

FIG. 4 is a schematic perspective view of a suction pipe fitting according to the present utility model;

FIG. 5 is a schematic perspective view of a brush member according to the present utility model;

FIG. 6 is an enlarged schematic view of the present novel guide ramp;

FIG. 7 is a schematic diagram of the structure of the positioning key and the buckling key of the present utility model;

FIG. 8 is a schematic view of the inner structure of the dust cup cover of the utility model;

FIG. 9 is an enlarged schematic view of a dust flap of the present utility model;

fig. 10 is an enlarged schematic view of the positioning boss of the present utility model.

The reference numerals in the figures are: 1. the brush comprises a brush bristle, 2, a brush holder, 3, a suction pipe, 4, a positioning key, 5, a positioning protrusion, 6, a buckling key, 7, a dust blocking piece, 8, a dust cup cover, 9, an elastic piece, 10, a guiding inclined plane, 11, a fixing groove, 12, a deformation hole, 13, a long groove, 15, a boss, 16, a chamfering angle, 17, a sealing piece, 19, a long strip protrusion, 20, a key protrusion, 22, an inclined plane guiding structure, 23, a limiting protrusion, 24, a buckling button, 25, a limiting groove, 26, a positioning hole, 27, a positioning key slot, 28, a brush piece, 29, a torsion spring, 30, a suction nozzle, 31, a bone position, 32, a dust cup, 33, a vertical guiding inclined plane, 34, a bottom guiding inclined plane, 35, a buckling key slot, 37, a first fixing device, 38, a second fixing device, 39, a third fixing device, 40 and a fourth fixing device.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model.

Hereinafter, various embodiments of the present utility model will be described more fully. The utility model is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit the various embodiments of the utility model to the specific embodiments disclosed herein, but rather the utility model is to be understood to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the utility model.

Hereinafter, the terms "comprises" or "comprising" as may be used in various embodiments of the present utility model indicate the presence of the disclosed functions, operations or elements, and are not limiting of the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the utility model, the terms "comprises," "comprising," and their cognate terms are intended to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.

In various embodiments of the utility model, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B or may include both a and B.

Expressions (such as "first", "second", etc.) used in the various embodiments of the utility model may modify various constituent elements in the various embodiments, but the respective constituent elements may not be limited. For example, the above description does not limit the order and/or importance of the elements. The above description is only intended to distinguish one element from another element. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present utility model.

It should be noted that: in the present utility model, unless explicitly specified and defined otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between the interiors of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, it should be understood by those of ordinary skill in the art that the terms indicating an orientation or a positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of description, not to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

The terminology used in the various embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the utility model. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the utility model belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the utility model.

As shown in fig. 1, the cleaner of the present utility model includes a dust cup 32, a suction pipe member 3, and a dust cup cover 8 for opening or closing the dust cup 32.

As shown in fig. 2, the dust cup cover 8 is disposed above the dust cup 32, one end of the dust cup cover 8 is movably connected with the dust cup 32, and the other end is provided with a buckling button 6 for controlling the opening or closing of the dust cup cover 8, and a force is provided to the dust cup cover 8 when the dust cup cover 8 is opened by a plurality of (2 in the preferred embodiment) torsion springs 29. A sealing member 17 is arranged between the dust cup cover 8 and the dust cup 32, and a preferable embodiment of the sealing member 17 is rubber plastic foaming material made of ethylene-vinyl acetate copolymer, so that good sealing performance is ensured when the dust cup cover 8 is closed, and objects and odor in the dust cup 32 are prevented from being scattered.

As shown in fig. 6, the dust cup cover 8 is provided with a groove 36 corresponding to the first end of the buckling key 6, and the size of the groove 36 is slightly larger than that of the first end of the buckling key 6. The edge from the groove 36 to the dust cup cover 8 is provided with a guide inclined plane 10, so that the buckling key 6 slides into the groove 36 along the guide inclined plane 10, the buckling key 6 slides into the groove 36 more easily and smoothly, and the edge of the dust cup 32 is provided with a buckling key groove 35.

As shown in fig. 7, the left side is a buckling key 6, the right side is a positioning key 4, and a first fixing device 37 and a third fixing device 39 are respectively arranged at two sides of the middle position of the buckling key 6 and the positioning key 4. The second fixing device 38 and the fourth fixing device 40 are respectively arranged in the buckling key groove 35 and the positioning key groove 27, and the first fixing device 37 of the buckling key 6 is matched with the second fixing device 38 in the buckling key groove 35 to rotatably fix the buckling key 6 in the buckling key groove 35. The third fixing device 39 of the positioning key 4 and the fourth fixing device 40 in the positioning key groove 27 are matched with each other to rotatably fix the positioning key 4 in the positioning key 27 groove. In a preferred embodiment, the first fixing means 37 and the three fixing means 39 are provided as cylindrical protrusions and the second fixing means 38 and the fourth fixing means 40 are provided as cylindrical recesses.

An elastic piece 9 is arranged between the second end of the buckling key 6 and the buckling key groove 35, a boss 15 is arranged below a first fixing device 37 of the buckling key 6, the boss 15 is attached to the buckling key groove 35, and the attaching surface is set to be a plane. The boss 15 is attached to the buckling key groove 35 to limit the inclination of the buckling key 6, so that the buckling key 6 is basically flush with the surface of the dust cup 32 under the action of the elastic piece 9, the surface looks neat, and the user experience is improved. Meanwhile, due to the guide inclined plane 10, the dust cup cover 8 can be smooth when being buckled downwards, and a click sound is generated when the buckling key slides into the groove 36, so that a user is prompted to complete buckling.

The pressing stroke space of the buckling key 6 is larger than the meshing stroke space of the buckling key 6 and the groove 36, so that the dust cup cover 8 can be opened without pressing the buckling key 6 to the bottommost part. The first end of the buckling key 6 is provided with a bevel 16 for guiding the buckling key 6 to compress the elastic piece 9 when the dust cup cover 8 is pressed downwards, and the buckling key is smoother when the dust cup cover 8 is closed.

As shown in fig. 4, the suction pipe 3 is a flat hollow pipe, a first end of the suction pipe 3 is coupled with the dust cup cover 8 and is used for conveying objects in the suction pipe 3 into the dust cup 32, a second end of the suction pipe 3 is provided with a suction nozzle 30, and the suction nozzle 30 is in a shape of a chamfer of the flat hollow pipe, and one end is longer and the other end is shorter. The brush piece 28 comprises a brush frame 2 and brush hairs 1 arranged on the brush frame 2, the brush frame 2 is sleeved at one end of a suction nozzle 30 of the suction pipe piece 3, and a limiting device and a positioning device are arranged between the suction pipe piece 3 and the brush frame 2. The positioning device controls the bristles 1 to be locked at the front end of the suction nozzle 30 or the suction nozzle 30 to be locked at the front end of the bristles 1, the limiting device limits the virtual positions of the brush frame 2 in front and back and left and right when the bristles 1 are locked at the front end of the suction nozzle 30, the suction force of the dust collector is strong when the dust collector is used, the suction pipe fitting 3 can vibrate, abnormal sound is generated at the virtual positions between the suction pipe fitting 3 and the brush frame 2 due to vibration, and the abnormal sound and vibration can be reduced due to the limited virtual positions.

As shown in fig. 5, the limiting device comprises a bone position 31 at the inner side of the brush frame 2, a limiting protrusion 23 at the back of the suction pipe member, and a limiting groove 25 arranged at the position of the brush frame 2 corresponding to the limiting protrusion 23, wherein the limiting protrusion 23 and the limiting groove 25 are mutually engaged when the brush hair 1 is locked at the front end of the suction nozzle 30, the bone position 31 comprises a plurality of microprotrusions, the microprotrusions are extruded by the suction pipe member 3 when the brush frame 2 is sleeved on the suction pipe member 3, and the limiting device is mainly limited by the limiting protrusion 23 and limits the front-back and left-right virtual positions of the brush frame 2. The limit projection 23 is provided with a slope guide 22, and the slope guide 22 includes a lower slope guide and a side lower slope guide. The lower inclined surface guide and the side lower inclined surface guide are matched with the limit groove 25 arranged on the brush frame 2, so that the limit protrusion 23 and the brush frame 2 are more matched and more tightly when the brush frame 2 is pushed to the suction nozzle 30 until the brush frame is completely fixed.

As shown in fig. 3, the positioning device comprises a strip protrusion 19 on the back of the suction pipe fitting 3, a positioning protrusion 5 on the front of the suction pipe fitting 3, and a positioning key 4. As shown in fig. 10, a positioning groove is formed in the center of the positioning protrusion 5, a positioning key groove 27 is formed in the front face of the brush holder 2, a positioning hole 26 is formed in the positioning key groove 27, a key protrusion 20 is arranged below one end of the positioning key 4, an elastic piece 9 is arranged below the other end of the positioning key 4, and the key protrusion 20 is inserted into the positioning groove through the positioning hole 26. When the brush holder 2 is assembled downward from the suction nozzle 30, the brush holder 2 is forcibly pressed downward, so that the snap button 24 is moved rearward, thereby fitting the brush holder 2 into the suction pipe member 3. The brush hair 1 can be controlled to be locked at the front end of the suction nozzle 30 or the suction nozzle 30 can be controlled to be locked at the front end of the brush hair 1 by pressing the positioning key 4 and pushing the brush holder 2, and when the suction nozzle 30 is locked at the front end of the brush hair 1, the long protrusion 19 at the back of the suction pipe member 3 positions the brush holder 2 at the back of the suction pipe member 3.

As shown in fig. 8 and 9, a backflow preventing device is arranged at the joint between the interior of the dust cup cover 8 and the suction pipe piece 3, and the backflow preventing device comprises a fixing groove 11 and a dust blocking sheet 7. The end of the dust blocking piece 7 inserted into the fixing groove 11 is set as a fixed end, and the end of the dust blocking piece 11 arranged on the suction pipe piece 3 is set as a dust blocking end. The size of the fixed end gradually increases from the end inserted into the fixed slot 11 to the end connected with the dust blocking end, and the preferred embodiment comprises that the fixed end is provided with a vertical guide inclined plane 33 and a bottom guide inclined plane 34, and the vertical guide inclined plane 33 can be pressed more and more tightly when a user presses the fixed end downwards into the fixed slot 11 until the dust blocking piece 7 is completely fixed in the fixed slot 11, and the bottom guide inclined plane 34 is used for facilitating the dust blocking piece 7 to slide into the fixed slot 11. The fixing groove 11 is internally provided with a bulge, so that the contact area between the dust blocking sheet 7 and the fixing groove 11 is increased, and the fixing is firmer. The fixed end is provided with a plurality of (2 in the preferred embodiment) deformation holes 12, and the deformation holes 12 can deform when the fixed end is inserted into the fixed slot 11, and tension is formed after the fixed end is inserted into the fixed slot 11, so that the fixed end is better fixed in the fixed slot 11. The dust blocking piece 7 is provided with a long groove 13 at the opening and closing position, when the dust collector is started, the suction can suck the dust blocking end of the dust blocking piece 7, objects are sucked into the dust cup 32 from the suction pipe piece 3, and the long groove 13 is favorable for opening the dust blocking end. The dust blocking piece 7 is an elastic dust blocking piece 7, and when the dust collector is closed, the dust blocking piece 7 is restored to the original shape under the elasticity of natural silica gel, and objects in the dust cup 32 are blocked to be poured out. The assembly mode of the backflow preventing device is simple and convenient, the assembly process is simplified, and the cost is effectively reduced.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The vacuum cleaner is characterized by comprising a dust cup, a suction pipe fitting and a dust cup cover for opening or closing the dust cup;

one end of the dust cup cover is movably connected with the dust cup, a buckling key is arranged at the other end of the dust cup cover, the buckling key is used for locking or loosening the dust cup cover, a groove is arranged at the first end of the dust cup cover corresponding to the buckling key, and the first end of the buckling key is buckled with the groove;

the dust cup is characterized in that a buckling key groove is formed in the edge of the dust cup, a first fixing device is arranged on the buckling key, a second fixing device is arranged in the buckling key groove, and the first fixing device and the second fixing device are matched with each other and used for rotatably coupling the buckling key in the buckling key groove;

the utility model discloses a dust cup, including lock button, dust cup, lock button, boss, lock button second end with lock is provided with the elastic component between pressing the keyway, be provided with the boss on the lock button, the boss with the lock presses the keyway to laminate mutually in order to restrict the slope of lock button, make the lock button be in under the effect of elastic component with the surface of dust cup is basic flush.

2. The vacuum cleaner of claim 1, wherein the snap button has a pressing stroke space that is greater than a snap stroke space of the snap button and the recess, such that the dust cup cover is flipped up when the snap button is pressed.

3. The vacuum cleaner of claim 1, wherein a guide ramp is provided from the recess to the edge of the dirt cup cover for sliding the snap button into the recess along the guide ramp.

4. The vacuum cleaner of claim 1, wherein the first end of the snap button is provided with a beveled structure for guiding the snap button to compress the resilient member when the dust cup cover is pressed downward.

5. The vacuum cleaner of claim 1, wherein the suction tube member is configured as a hollow tube, a first end of the suction tube member being coupled to the dirt cup cover and configured to transport objects within the suction tube member into the dirt cup, a second end of the suction tube member being provided with a suction nozzle;

the suction nozzle is sleeved with a brush piece, and the brush piece comprises a brush frame and brush hair arranged on the brush frame;

the brush holder comprises a suction pipe fitting and a brush holder, wherein a positioning device and a limiting device are arranged between the suction pipe fitting and the brush holder, the positioning device is used for positioning the brush hair at the front end of the suction nozzle, and the limiting device is used for limiting the brush holder to shake along at least one direction when the brush hair is locked at the front end of the suction nozzle.

6. The vacuum cleaner according to claim 5, wherein the limiting means comprises a bone portion inside the brush holder, a limiting protrusion on the back surface of the suction pipe member, and a limiting groove provided at a position of the brush holder corresponding to the limiting protrusion, the limiting protrusion and the limiting groove being engaged with each other when the bristles are locked to the front end of the suction nozzle, the bone portion comprising a plurality of protrusions for being pressed by the suction pipe member when the brush holder is fitted over the suction pipe member.

7. The vacuum cleaner according to claim 1, wherein a backflow prevention device is provided at a junction of the inside of the dust cup cover and the suction pipe member, the backflow prevention device includes a fixing groove and a dust blocking piece, one end of the dust blocking piece inserted into the fixing groove is provided as a fixing end, the fixing end is used for fixing the dust blocking piece in the fixing groove, and one end of the dust blocking piece arranged on the suction pipe member is provided as a dust blocking end.

8. The vacuum cleaner of claim 7, wherein the fixed end is formed to be gradually larger in size from an end inserted into the fixed slot to an end connected to the dust blocking end.

9. The vacuum cleaner of claim 7, wherein the dust flap is an elastic dust flap for returning the dust flap by its own elastic force when the vacuum cleaner is closed;

the opening and closing positions of the dust blocking sheets are provided with long grooves.

10. The vacuum cleaner of claim 7, wherein a protrusion is disposed in the fixing groove, the protrusion being coupled with the fixing end;

the top of the fixed end is provided with a hole.

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