CN209770239U - Portable dust collector - Google Patents

Abstract

the utility model provides a portable dust collector has dust absorption storehouse, barrel and handle portion, and dust absorption storehouse entry inside has dust absorption storehouse entry leg, be formed with vertical rib on the leg, the tip department of the passageway that dust absorption storehouse entry leg formed has a valve block, and the tip department of the passageway that dust absorption storehouse entry leg formed is formed with to the step form that the ascending axis direction of first side is outstanding is protruding, the step form protruding can with the surface of valve block forms great area of contact to make the tip department of the passageway that valve block and dust absorption storehouse entry leg formed laminate better sealed. The valve plate is integrally formed into an arc-shaped bent state, and in order to enable the valve plate to be better attached to the vertical rib and the step-shaped protrusion, the vertical rib and the step-shaped protrusion are respectively provided with an arc-shaped surface at the part contacted with the valve plate. The utility model discloses a unique design can make the difficult reverse leakage of foul in the dust absorption storehouse.

Description

Portable dust collector

Technical Field

The utility model relates to a domestic or automobile-used burnisher field especially relates to a portable dust catcher.

background

Compared with a large-sized dust collector, the portable dust collector is an updated product with small volume and convenient carrying. The principle is that the fan impeller is driven by the motor at high speed, so that higher pressure difference is formed between the inside and the outside of the dust collector, and therefore, outside dirt such as dust, debris and the like enters the inside of the dust collector along with air, and the dust, the debris and the like are collected in a dust cylinder through the filtering action of a filter, so that the purpose of cleaning the environment is achieved.

A typical such type of cleaner can be found in CN203914778U, CN 106805845A.

However, the vacuum cleaners have problems in that the overall structure is not compact enough, the volume is too large, the suction force is insufficient, the places difficult to clean, such as gaps in the vehicle and narrow spaces, cannot be effectively cleaned, and the structural design of many details is not ideal.

For example, the design of the dust collection bin has the disadvantages that dust is easy to leak out of the dust collection bin reversely through a gap, a filter screen in the dust collection bin is not easy to detach, air flow blown by the dust collector is directly blown to hands of people and causes discomfort, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. To this end, the present invention provides a portable vacuum cleaner which is optimally designed in a plurality of detailed structures, thereby optimizing the performance of the vacuum cleaner.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

the utility model provides a portable dust collector, which comprises a dust collection bin, a cylinder body and a handle part, wherein a filtering part is arranged in the dust collection bin, and a fan and a motor are arranged in the cylinder body;

the first end part of the dust collection bin extending along the first direction is provided with a dust collection bin inlet, and the dust collection bin inlet is arranged in a manner of deviating from the axis in the first direction, so that the dust collection bin on one side of the dust collection bin inlet has an arc shape with a smaller radius than that of the curved surface on the other side;

The dust collection bin inlet is internally provided with a dust collection bin inlet surrounding wall, the dust collection bin inlet surrounding wall integrally extends along the first direction and forms a closed structure around the axis in the first direction, so that a concave channel is formed in the dust collection bin along the first direction from the dust collection bin inlet, and when the dust collector works, airflow with dirt such as dust can enter the interior of the dust collection bin along the channel;

the dust collection bin inlet peripheral wall is formed with a vertical rib away from the axis in the first direction;

The end part of a channel formed by the dust collection bin inlet surrounding wall is provided with a valve plate, and the valve plate is fixed at the end part of the channel formed by the dust collection bin inlet surrounding wall through a valve plate fixing piece;

step-shaped protrusions protruding towards the axis direction in the first direction are formed at the end part of a channel formed by the dust collection bin inlet surrounding wall, and the step-shaped protrusions can form a large contact area with the surface of the valve plate, so that the valve plate and the end part of the channel formed by the dust collection bin inlet surrounding wall can be better attached and sealed;

The valve plate 26 forms an arc-shaped bending state as a whole;

The vertical rib is provided with an arc surface, and the arc surface is provided with an arc shape matched with the valve plate, so that the valve plate is tightly combined with the vertical rib when being positioned near the vertical rib;

the step-shaped protrusion also has an arc shape adapted to the valve plate at a portion contacting the valve plate so as to form a tighter coupling therebetween.

Further, the number of the vertical ribs is 1, 2 or more.

Furthermore, horizontal ribs which are vertically crossed with the vertical ribs are formed on the vertical ribs; and a cylindrical protrusion is formed at the intersection point of the vertical rib and the horizontal rib.

furthermore, the valve plate is provided with a plurality of through holes, the through holes of the valve plate are sleeved on the cylindrical protrusions and tightly attached to the end parts of a channel formed by the vertical ribs, the horizontal ribs and the dust collection bin inlet surrounding wall through valve plate fixing pieces.

furthermore, the valve plate fixing piece is an annular metal piece, a plurality of claw-shaped parts protruding radially are arranged on the ring, and the claw-shaped parts have certain elasticity or plasticity, so that the valve plate can be tightly fixed at the end part of a channel formed by the peripheral wall of the dust collection bin inlet.

Furthermore, a plurality of material reducing holes are formed in the valve plate, the material reducing holes enable the valve plate not to be in contact with any part and do not need to be hollowed at the position for playing a role in dust separation, the overall material consumption of the valve plate is reduced, and the valve plate is enabled to be more easily formed into an arc shape so as to be attached to the arc-shaped surface of the step-shaped protrusion and the arc-shaped surface of the vertical rib more closely.

Further, a filter screen bracket, a Hepa filter screen and a filter screen detachable end cover are arranged in the dust collection bin 2;

The gauze is arranged on the filter screen bracket, so that the dust can be preliminarily filtered;

the Hepa filter screen is sleeved in the filter screen bracket and is relatively and stably fixed together by detaching the end cover through the filter screen;

The filter screen bracket, the Hepa filter screen and the filter screen dismounting end cover are tightly attached to the inner wall of the dust collection bin when being arranged in the dust collection bin;

the filter screen detaching end cover is of an annular structure, and a crosspiece is arranged on the diameter of the filter screen detaching end cover, so that the fingers of a person can conveniently take out and clean the filter screen detaching end cover, the filter screen support and the Hepa filter screen which are connected with the filter screen detaching end cover through the crosspiece.

further, a cylinder cap is arranged at the end of the cylinder body along the first direction, and when the cylinder cap is buckled on the cylinder body, the cylinder cap is tightly combined with the cylinder body, so that the cylinder cap and the cylinder body have the same radius or width in a second direction orthogonal to the first direction, and the surfaces of the cylinder cap and the cylinder body can be smoothly transited without generating drop height.

Further, the front electric quantity indicator light of the portable dust collector, the electric quantity indicator light 12 can be used for indicating the residual electric quantity of the battery, so that people can conveniently charge in time.

Furthermore, the back of the portable dust collector is provided with a plurality of groups of air outlet grids, each group comprises a plurality of strip-shaped air outlets, the inner side of each strip-shaped air outlet is provided with an air guide grid which forms a certain angle with the strip-shaped air outlet, and the air guide grid and the flowing direction of the airflow form a certain included angle, so that the airflow can be guided and deviated;

the air outlet grille and the air guide grille play a three-dimensional flow guiding role in airflow, under the guiding role of the air outlet grille and the air guide grille, air flowing out of the portable dust collector is discharged from two sides of the dust collector and cannot be sprayed to hands of people gripping the handle, and therefore the air outlet grille and the air guide grille do not cause blowing feeling to people, and use comfort and experience are reduced.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1(a) is a schematic front view of a portable vacuum cleaner according to an embodiment of the present invention.

Fig. 1(b) is a schematic back view of a portable vacuum cleaner according to an embodiment of the present invention.

Fig. 1(c) is a schematic side view of a portable vacuum cleaner according to an embodiment of the present invention.

fig. 2 is an exploded view of various components of a portable vacuum cleaner according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a portable vacuum cleaner according to an embodiment of the present invention.

Fig. 4 is a sectional perspective view of a dust collection chamber of a portable vacuum cleaner according to an embodiment of the present invention.

Fig. 5 is a partial perspective view of a portable vacuum cleaner according to an embodiment of the present invention.

Fig. 6 to 7 are schematic views illustrating the assembly of the dust collecting chamber and the coupling ring of the portable vacuum cleaner according to an embodiment of the present invention.

Fig. 8 is an end view of a portable vacuum cleaner in accordance with an embodiment of the present invention.

fig. 9-11 are schematic views of a two-in-one brush head of a portable vacuum cleaner according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

in the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In addition, in the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and for example, they may be mechanically or electrically connected, or they may be connected to each other within two elements, directly or indirectly through an intermediate medium, and those skilled in the art may understand the specific meanings of the above terms according to specific situations.

Further, in the description of any method below, any process or method description in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system.

Fig. 1 shows a front view (a), a back view (b) and a side view (c) of the portable vacuum cleaner of the present invention, which has a cylinder structure as a whole, and which includes a cleaner cylinder 5, the cleaner cylinder 5 extending in a first direction as a whole, and having a closed structure surrounding an axis formed in the first direction. The cleaner barrel 5 has a circular cross-sectional shape, it being understood that the cross-sectional shape may also be square, oval, trapezoidal or other suitable geometric shape.

The end part of the cylinder 5 along the first direction is provided with a cylinder cap 1, when the cylinder cap 1 is buckled on the cylinder 5, the cylinder cap 1 is tightly combined with the cylinder 5, so that the cylinder cap 1 and the cylinder 5 have the same radius or width in a second direction orthogonal to the first direction, and the surfaces of the cylinder cap 1 and the cylinder 5 can be smoothly transited without generating drop height. It will be appreciated that the cap 1 is separable from the body 5, and when the cap 1 is removed from the body 5, the dust bin inlet, etc. on the body 5 are exposed, so that cleaning can commence.

When the cylinder cap 1 is buckled on the cylinder body 5, the portable dust collector is in a shape similar to a pen cylinder as a whole, so that the portable dust collector is compact in structure, convenient to store, carry, dust-proof and dustproof.

The front of the portable dust collector is provided with a switch 10 and an electric quantity indicator light 12, and when the switch 10 is turned on, the dust collector starts to work. The electric quantity indicator lamp 12 can be used for indicating the residual electric quantity of the rechargeable battery, so that people can conveniently charge in time.

the back of the portable dust collector is provided with a plurality of air outlet grilles 11, in the embodiment, the air outlet grilles are two groups, each group is provided with a plurality of strip-shaped air outlets, and the inner sides of the strip-shaped air outlets are provided with air guide grilles 111 which form a certain angle with the strip-shaped air outlets. The air guide grille 111 forms a certain included angle with the flowing direction of the air flow, so that the air flow can be guided and deviated from the flowing direction. Therefore, the air outlet grille 11 and the air guide grille 111 have a three-dimensional flow guiding effect on the air flow. Under the guiding action of the air outlet grille 11 and the air guide grille 111, air flowing out of the portable dust collector is discharged from two sides of the dust collector and cannot be sprayed to hands of people gripping the handle, so that the blowing feeling of people cannot be caused, and the use comfort and experience are reduced.

Still have illumination LED9 on the barrel when the dust catcher is worked illumination LED9 opens and illuminates the surrounding environment, and the people of being convenient for discover dust, piece or other filth, makes things convenient for the people to clean when the dark sight of light is not good in the car.

The combination and relationship of the components of the portable vacuum cleaner can be more clearly understood with reference to fig. 2 to 4.

the cylinder 5 is connected with the dust collection bin 2 through a connection ring 61 at a first end extending in a first direction, the dust collection bin 2 has a dust collection bin inlet 21 at the first end extending in the first direction, the dust collection bin inlet 21 is arranged to deviate from an axis in the first direction so that the dust collection bin 2 at one side of the dust collection bin inlet 21 has an arc shape with a smaller radius than that of a curved surface at the other side, and the dust collection bin 2 has a center line which is symmetrical left and right. The dust collection bin inlet 21 arranged by deviating from the axis in the first direction enables the dust collection bin inlet 21 to be parallel or basically parallel to the surface to be cleaned when a person uses the dust collector to clean the surface, and facilitates dust or dirt to be sucked into the dust collector, so that the person is comfortable and efficient when using the dust collector, the dust collector can always keep an included angle of less than 90 degrees with the surface to be cleaned when the person moves the dust collector back and forth, and the use habit of the person is met.

The dust collection bin inlet 21 is internally provided with a dust collection bin inlet surrounding wall 22, the dust collection bin inlet surrounding wall 22 integrally extends along the first direction and forms a closed structure around the axis in the first direction, so that a concave channel is formed from the dust collection bin inlet 21 to the dust collection bin 2 along the first direction, and when the dust collector works, airflow with dirt such as dust can enter the dust collection bin 2 along the channel.

The dust bin inlet enclosure wall 22 is formed with a vertical rib 28, which may be 1, 2 or more, away from the axis in the first direction. The vertical rib 28 is formed with a horizontal rib 281 perpendicularly intersecting therewith. A cylindrical protrusion 29 is formed at an intersection point where the vertical rib 28 and the horizontal rib 281 intersect.

The end of the channel formed by the dust collecting bin inlet surrounding wall 22 is provided with a valve plate 26, and the valve plate 26 is provided with a plurality of through holes 261. During assembly, the through hole 261 of the valve plate 26 is sleeved on the cylindrical protrusion 29 and tightly attached to the end of the channel formed by the vertical rib, the horizontal rib and the dust collection bin inlet surrounding wall 22 through the valve plate fixing member 25. Step-shaped protrusions 27 protruding towards the axial direction in the first direction are formed at the end of the channel formed by the dust collection bin inlet surrounding wall 22, and the step-shaped protrusions 27 can form a large contact area with the surface of the valve plate 26, so that the valve plate 26 and the end of the channel formed by the dust collection bin inlet surrounding wall 22 are better attached and sealed.

valve sheet 26 as a whole is formed in an arc-shaped bent state. This is because when the vacuum cleaner is working, the air rushes into the dust collecting compartment, except for the part fixed by the valve plate fixing member 25, most of the valve plate 26 is blown inward by the air flow and forms a bend with the fixed part, when the vacuum cleaner stops working, the valve plate 26 will recover the deformation to a certain extent, but it will not completely recover to the straight state, but will remain a certain arc-shaped surface.

In order to adapt to the arc-shaped surface state of valve plate 26, vertical rib 28 has an arc-shaped surface 24, and arc-shaped surface 24 has an arc shape adapted to valve plate 26, so that valve plate 26 forms a tighter combination with vertical rib 28 when being located near the vertical rib, and a gap is prevented from being formed between the two and causing dust overflow. The stepped projection 27 also has an arc shape corresponding to the valve plate 26 at a portion contacting the valve plate so as to form a tighter coupling therebetween. It can be seen that the valve plate 26, the step-shaped protrusion 27 and the curved surface 24 of the vertical rib 28 are designed to cooperate with each other to prevent dust and other dirt from entering the dust bin from the inlet in one direction, so as to prevent the dust from moving in the opposite direction.

the valve plate fixing member 25 in this embodiment is an annular metal member, and the annular member has a plurality of radially protruding claw-shaped members having a certain elasticity or plasticity, so that the valve plate 26 can be tightly fixed to the columnar protrusion 29. The valve plate 26 can also be provided with a plurality of material reducing holes 262, the material reducing holes 262 ensure that the valve plate 26 is not in contact with any part and the part which does not need to bear the dust separation function is hollowed out, so that the overall material consumption of the valve plate 26 is reduced, and the valve plate 26 can be more easily formed into an arc shape to be more tightly attached to the arc-shaped surfaces 24 of the step-shaped protrusion 26 and the vertical rib 28.

Referring to fig. 2, a filter screen bracket 31, a Hepa (High Efficiency Particulate Air filter) filter screen 32, and a filter screen detachable end cover 33 are disposed in the dust collection bin 2. The screen support 31 is provided with a screen, so that the dust can be filtered primarily. The Hepa filter screen 32 is sleeved in the filter screen bracket 31, and is relatively and stably fixed together through the filter screen detaching end cover 33. Filter screen support 31, Hepa filter screen 32, filter screen dismantlement end cover 33 are arranged in dust absorption storehouse 2 in with the inner wall in dust absorption storehouse 2 closely laminates. The screen saver end cap 33 is of a generally annular configuration and is characterized by a ledge in diameter to facilitate removal and cleaning of the screen saver end cap 33 and its associated screen support 31, Hepa screen 32 by a person's fingers.

the dust collection bin 2 is connected with the cylinder 5 through a connecting ring 61. The connection structure between the dust collection bin 2 and the connection ring 61 has a fool-proof design. With reference to fig. 5 to 7.

The dust collection bin 2 is provided with a first circumferential protrusion 201 and a second circumferential protrusion 202 which is circumferentially spaced from the first circumferential protrusion 201 at one end, and preferably the circumferential spacing between the first circumferential protrusion 201 and the second circumferential protrusion 202 is half circle or close to half circle. The first circumferential projection 201 and the second circumferential projection 202 form a certain included angle with the circumferential direction, that is, they belong to a part of a spiral line, so that the dust collecting bin 2 can be screwed into the screwing groove of the connecting ring 61 when being screwed into the connecting ring 61. The first circumferential protrusion 201 is provided with a first axial protrusion 203, the second circumferential protrusion 202 is provided with a second axial protrusion 204, the first axial protrusion 203 is located near one end of the first circumferential protrusion 201, and the second axial protrusion 204 is located near one end of the second circumferential protrusion 202. The first circumferential projection 201 has a significant difference in length over the second circumferential projection 202.

the connecting ring 61 is provided with a connecting ring inner surface 611 extending along the circumferential direction and the axial direction, a first circumferential groove 601 recessed inwards and a second circumferential groove 602 spaced from the first circumferential groove 601 in the circumferential direction are arranged on the connecting ring inner surface 611, and the circumferential spacing between the first circumferential groove 601 and the second circumferential groove 602 is the same as the spacing between the first circumferential protrusion 201 and the second circumferential protrusion 202. The first circumferential groove 601 is matched with the circumferential length of the first circumferential protrusion 201, and the second circumferential groove 602 is matched with the circumferential length of the second circumferential protrusion 202.

The first circumferential groove 601 and the adjacent inner connecting ring surface 611 of the connecting ring 61 are provided with a gradually-raised first buffering surface 607, an axial groove 605 which is recessed inwards relative to the inner connecting ring surface 611 is arranged at the position adjacent to the first buffering surface 607, and a first screwing groove 603 which is recessed inwards relative to the inner connecting ring surface 611 is arranged near the first circumferential groove 601.

Correspondingly, a gradually-raised buffer surface 608 II is arranged between the second circumferential groove 602 and the connecting ring inner surface 611 of the connecting ring 61 adjacent to the second circumferential groove, an axial groove 606 which is recessed inwards relative to the connecting ring inner surface 611 is arranged adjacent to the second buffer surface 608 II, and a screw-in groove 604 which is recessed inwards relative to the connecting ring inner surface 611 is arranged adjacent to the second circumferential groove 602.

The process of assembling the dust collecting bin 2 into the connecting ring 61 is as follows, firstly, the first circumferential projection 201 is aligned with the first circumferential groove 601, the corresponding second circumferential projection 202 is aligned with the second circumferential groove 602, the dust collecting bin 2 and the connecting ring 61 move relatively along the axial direction so that the axial projections are inserted into the corresponding circumferential grooves, when the two are contacted with each other and can not move relatively, the dust collecting bin 2 rotates along the circumferential direction, the first circumferential projection 201 is screwed into the first circumferential groove 603, the first axial projection 203 slides along the first buffer surface 607 and then is clamped into the first axial groove 605, similarly to the above, the second circumferential projection 202 is screwed into the second circumferential groove 604, the second axial projection 204 slides along the second buffer surface 608 and then is clamped into the second axial groove 606, when the axial projections slide along the buffer surfaces, the dust collecting bin may generate a certain degree of elastic deformation, when the protrusions are all matched into the corresponding grooves, the deformation is recovered, and the dust suction bin and the connecting ring are assembled together.

because the first circumferential projection 201 has a significant difference in length from the second circumferential projection 202, the first circumferential projection must be inserted into the corresponding groove when the dust collecting bin is assembled, and if a person is assembled in an opposite direction, the dust collecting bin cannot be inserted into the connecting ring, so that the dust collecting bin has a fool-proof function of preventing the dust collecting bin from being assembled in an opposite direction.

The connecting piece 61 is connected with the cylinder 5 through a rotating fastener, and it can be understood that the connecting piece can also be connected through a screw, a plug-in buckle and the like. The connecting piece 61 is provided with an airflow channel at the position close to the axis, the airflow channel is provided with a protective cover 65, and the protective cover 65 can prevent fingers or other foreign matters of a person from entering so as to prevent the person from being accidentally injured or the motor from being damaged. The shield may be a concentric annular grid, or a grid of other shapes.

With reference to fig. 2 and 3, a fan 63, a first fan bin assembly 64, a second fan bin assembly 62, a motor 7, a circuit board, and other components are disposed inside the barrel 5, the fan 63 is disposed in a fan bin enclosed by the first fan bin assembly 64 and the second fan bin assembly 62, and the fan 63 is driven by the motor 7.

At the other end of the cylinder 5 in the first direction, a handle part 41 connected with the cylinder 5 is provided, and the central part of the handle part 41 is concave inwards and forms a through hole, so that the handle part 41 forms three handle parts which are convenient to hold and generally present a 'one' shape around the through hole.

The handle portion 41 has a cover 4 which can be replaced with a handle portion, and the cover 4 can be detached from the handle portion. The handle portion 41 defines a cavity 811 therein, it being understood that the cavities 811 are formed in each of the three generally "one" shaped handle portions, the cavities 811 being in communication with one another, the cavities 811 also being in communication with the cavity in the barrel 5. Two rechargeable batteries 8 are arranged in the cavity 811, and are respectively placed in the cavities formed in the mutually opposite one-shaped handle parts of the handle part 41, and the rechargeable batteries are connected with the motor 7 in the barrel 5 through electric wires and supply power to the motor 7. The structure that rechargeable battery set up in the cavity of handle portion makes portable dust catcher's whole volume reduce greatly, and the cavity in the handle portion makes can place the longer rechargeable battery of capacity thereby improve portable dust catcher's operating duration. The rechargeable batteries are placed in the handle part to play a role of a counterweight, the gravity center of the dust collector is near the handle part when a person holds the handle part to work, so that the dust collector does not feel heavy and inconvenient, and the head and feet are light. The handle cover 4 can be detached and replaced, so that the subsequent replacement of the handle cover 4 with various colors, patterns or materials is possible, and the beneficial effect is achieved for the upgrading and updating of products.

The handle replaceable cover body 4 is provided with a buckling structure, and the handle replaceable cover body 4 can be buckled on the three 'one' handle parts through the buckling structure.

The number of the buckling structures is multiple, the buckling structures are evenly distributed on the replaceable cover body 4 of the handle part, the cavities of the three 'one' -shaped handle parts are internally provided with structures matched with the buckling structures, and the buckling structures are fastened on the matched structures to realize tight combination between the two.

the three I-shaped handles are provided with smooth transition angles.

The side of the 'one' shaped handle part facing the through hole is provided with a round surface along the circumferential direction, so that a person can hold the handle comfortably without hurting hands.

at one end of the handle-replaceable cover 4 there is a small throat which facilitates the entry of tools and the prying up and removal of the handle-replaceable cover.

It is understood that the cylinder 5 of the portable vacuum cleaner may be provided with a charging interface through which a power source is connected and the rechargeable battery is charged, and the charging interface may be connected to various power interfaces, such as a cigarette lighter on a vehicle, a household power interface, and the like.

Referring to fig. 1 and 8, the cylinder 5 of the portable vacuum cleaner has cylinder outer protrusions 51 formed thereon, the cylinder outer protrusions 51 are distributed on both sides of the illumination LED, and the cylinder outer protrusions 51 have a length extending in the first direction and protrude in a direction parallel to a height direction of the illumination LED. When the portable cleaner is placed on a table or other surface, the illumination LED and the cylinder outer protrusion 51 on one side thereof form a bracket structure and fix the portable cleaner so that the portable cleaner does not roll at will. It will be appreciated that the projecting direction of the barrel outer projection 51 may also be radial or other suitable direction along the cross-section of the barrel.

In another embodiment of the present invention, any one side of the illumination LED may have more than one cylinder outer protrusion 51, and the more than one cylinder outer protrusions are arranged in parallel and have a certain circumferential interval therebetween, so that a bracket structure can be formed between any two adjacent cylinder outer protrusions and the portable vacuum cleaner can be prevented from rolling arbitrarily.

The cylinder outer protrusion 51 may also have any geometric shape, such as a triangle, a trapezoid, etc., one side of which is parallel to the extending direction of the illumination LED, so that one side of the geometric shape forms a support structure with the LED and prevents the portable cleaner from rolling arbitrarily.

Or the cylinder body outer protrusion has a geometric shape with any one point, so that the any point of the geometric shape and the LED form a bracket structure and prevent the portable dust collector from rolling arbitrarily.

The structure of the two-in-one brush head 71 of the portable vacuum cleaner will be explained with reference to fig. 9 to 11.

The two-in-one brush head 71 has a body part extending in the first direction and forming a closed structure around the axis of the first direction, a dust collection bin inlet joint part 77 is provided at one end of the body part, the joint part extends in the first direction and forms a closed structure around the axis of the first direction, the dust collection bin inlet joint part 77 can be inserted into the dust collection bin inlet 21 and closely fit with the inner surface of the surrounding wall 22 of the dust collection bin inlet, one end of the dust collection bin inlet joint part 77 can abut against and form a close fit with a step-shaped protrusion 27 formed at the end of the surrounding wall 22 of the dust collection bin inlet, a deformable member 76 is further provided at one end of the dust collection bin inlet joint part 77, and a part of the surrounding wall 22 of the dust collection bin inlet corresponding to the deformable member 76 has a dust collection bin inlet groove 23, the end of the deformable part 76 can be buckled at the step part formed by the groove 23 of the dust collection bin inlet and the surrounding wall 22 of the dust collection bin inlet nearby, so that the two-in-one brush head 71 can be assembled in the dust collection bin inlet 21 and forms a stable structure. A two-in-one brush head body transition part 78 is arranged between the dust collection bin inlet combining part 77 and the body part of the two-in-one brush head 71. The two-in-one brush head 71 has a brush head inlet 79 at the other end.

The surface of the body of the two-in-one brush head 71 is also provided with a first protruding part 72 and a second protruding part 73, the first protruding part 72 is at a certain distance from the second book searching protruding part 73, and the two-in-one brush head is also provided with a first recess 74 opposite to the protruding part and a second recess 75 opposite to the protruding part. An outer layer brush head 81 is sleeved outside the body part of the two-in-one brush head 71, the outer layer brush head 81 can slide up and down along the body part of the two-in-one brush head 71, a bristle connecting part 83 is arranged at one end part of the outer layer brush head 81, a plurality of bristles are arranged on the bristle connecting part 83, and an outer layer brush head transition part 83 is further arranged for connecting the bristle connecting part 83 and the body of the outer layer brush head 81. The outer brush head 81 also has a pressing elastic member 85 at the surface of the body, and when one pressing elastic member end 86 of the pressing elastic member 85 is pressed, the pressing elastic member 85 can rotate around a certain axis, so that the other end opposite to the pressing elastic member end 86 moves up and down. The other end opposite to the end 86 of the pressing elastic member has a protrusion (not shown) inside, which matches the shape of the first recess 74 of the opposite protrusion and the second recess 75 of the opposite protrusion on the surface of the body of the two-in-one brush head 71 and can be locked in the recesses.

When the outer brush head 81 slides down to the root of the two-in-one brush head 71, the inner protrusion of the other end opposite to one end 86 of the pressing elastic member 85 falls into the first recess 74 of the opposite protrusion and forms a stable fixation, and the dust suction operation can be performed by using the brush head inlet 79.

When one end 86 of the pressing elastic component 85 is pressed, the pressing elastic component 85 rotates, the other end opposite to the end 86 moves upwards and enables the inner protrusion and the first recess 74 of the opposite protrusion to be separated from each other, so that the outer layer brush head 81 can slide upwards, when the outer layer brush head slides to the other end of the two-in-one brush head 71, the inner protrusion of the other end opposite to the end 86 of the pressing elastic component 85 falls into the second recess 75 of the opposite protrusion and forms stable fixation, and the suction inlet of the outer layer brush head 81 is flush with the brush head inlet 79, so that dust can be cleaned by using bristles and dust collection can be carried out.

The opposite side of the body of the two-in-one brush head 71 and the surface of the first protruding part 72 and the second protruding part 73 is further provided with a first stopping part 711 and a second stopping part 712, which can assist in limiting the outer brush head 81 when sliding to the two ends.

The working process of the portable dust collector is as follows: after the switch 10 is turned on, the motor 7 drives the fan 63 to work, air is discharged from the air outlet grille 11 at a very high speed, and simultaneously air in the dust collection bin 2 at the front end of the barrel 5 is continuously supplemented to the other side of the fan, so that instant vacuum is formed in the barrel 5 and the dust collection bin 2, namely a high negative pressure difference is formed between the inside of the barrel and the external atmospheric pressure, under the action of the negative pressure difference, dust, other dirt and the like enter the dust collection bin 2 through the dust collection bin inlet 21 along with airflow, and then the dust, the dust particles and the like are retained in the dust collection bin through the filtering action of the filter screen support 31 and the Hepa filter screen 32, and the air flows through the filter screen 32 and is discharged out of the barrel through the fan, so that the whole dust collection.

The specification reference numbers indicate:

1 cylinder cap, 2 dust collection chamber, 21 dust collection chamber inlet, 22 dust collection chamber inlet surrounding wall, 23 dust collection chamber inlet groove, 24 arc surface, 25 valve sheet fixing piece, 26 valve sheet, 261 through hole, 262 material reducing hole, 27 step-shaped protrusion, 28 vertical rib, 281 horizontal rib, 29 column-shaped protrusion, 201 circumference protrusion I, 202 circumference protrusion II, 203 axial protrusion I, 204 axial protrusion II, 31 filter screen bracket, 32Hepa filter screen, 33 filter screen detaching end cover, 4 handle part replaceable cover body, 41 handle part, 5 dust collector cylinder, 7 motor, 8 rechargeable battery, 811 cavity, 9 lighting LED, 10 switch, 11 air outlet grid, 111 air guide grid, 12 indicator light, 51 cylinder outer protrusion, 61 connecting ring, 62 fan chamber component II, 63 fan, 64 fan chamber component I, 65 protective cover 601, 602 circumference groove II, 603 screw-in groove I, 604 screw-in groove II, 605 axial groove one, 606 axial groove two, 607 buffer surface one, 608 buffer surface two, 611 connecting ring inner surface, 71 two-in-one brush head, 72 protrusion one, 73 protrusion two, 74 relative to protrusion recess one, 75 relative to protrusion recess two, 76 deformable component, 77 dust collection bin inlet joint portion, 78 two-in-one brush head body transition portion, 79 brush head inlet, 711 backstop portion one, 712 backstop portion two, 81 outer layer brush head, 82 outer layer brush head transition portion, 83 bristle connecting portion, 84 bristles, 85 pressing elastic component, 86 pressing elastic component end portion.

in the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. the utility model provides a portable dust collector, the dust collector has dust absorption storehouse, barrel and handle portion, filter component has in the dust absorption storehouse, fan and motor have in the barrel, its characterized in that:

A dust collection bin inlet is arranged at a first end part of the dust collection bin, wherein the first end part of the dust collection bin extends along a first direction, and the dust collection bin inlet is arranged in a mode of deviating from an axis in the first direction, so that the dust collection bin at one side of the dust collection bin inlet has an arc shape with a smaller radius than that of a curved surface at the other side;

The dust collection bin inlet is internally provided with a dust collection bin inlet surrounding wall, the dust collection bin inlet surrounding wall integrally extends along the first direction and forms a closed structure around the axis in the first direction, so that a concave channel is formed from the dust collection bin inlet to the dust collection bin along the first direction, and when the dust collector works, airflow with dirt such as dust can enter the interior of the dust collection bin along the channel;

the dust collection bin inlet peripheral wall is formed with a vertical rib away from the axis in the first direction;

The end part of a channel formed by the dust collection bin inlet surrounding wall is provided with a valve plate, and the valve plate is fixed at the end part of the channel formed by the dust collection bin inlet surrounding wall through a valve plate fixing piece;

Step-shaped protrusions protruding towards the axis direction in the first direction are formed at the end of a channel formed by the dust collection bin inlet surrounding wall, and the step-shaped protrusions can be in contact with the surface of the valve plate, so that the valve plate and the end of the channel formed by the dust collection bin inlet surrounding wall can be better attached and sealed;

The valve plate (26) integrally forms an arc-shaped bending state;

the vertical rib is provided with an arc surface, and the arc surface is provided with an arc shape matched with the valve plate, so that the valve plate is tightly combined with the vertical rib when being positioned near the vertical rib;

The step-shaped protrusion also has an arc shape adapted to the valve plate at a portion contacting the valve plate so as to form a tighter coupling therebetween.

2. The portable vacuum cleaner according to claim 1, wherein:

The number of the vertical ribs is 1, 2 or more.

3. The portable vacuum cleaner according to claim 1, wherein:

Horizontal ribs which are vertically crossed with the vertical ribs are formed on the vertical ribs;

And a cylindrical protrusion is formed at the intersection point of the vertical rib and the horizontal rib.

4. The portable vacuum cleaner according to claim 3, wherein:

The valve plate is provided with a plurality of through holes, the through holes of the valve plate are sleeved on the cylindrical protrusions and tightly attached to the end parts of a channel formed by the vertical ribs, the horizontal ribs and the dust collection bin inlet surrounding wall through valve plate fixing pieces.

5. The portable vacuum cleaner according to claim 1, wherein:

The valve plate fixing piece is an annular metal piece, a plurality of radial protruding claw-shaped parts are arranged on the ring, and the claw-shaped parts have certain elasticity or plasticity, so that the valve plate can be tightly fixed at the end part of a channel formed by the dust collection bin inlet surrounding wall.

6. The portable vacuum cleaner according to claim 1, wherein:

The valve plate is provided with a plurality of material reducing holes, the material reducing holes enable the valve plate not to be in contact with any part and do not need to be hollowed at the part for playing a dust isolating function, the whole material consumption of the valve plate is reduced, and the valve plate is enabled to be easier to form an arc shape so as to be attached to the arc-shaped surfaces of the step-shaped protrusions and the vertical ribs more tightly.

7. the portable vacuum cleaner according to claim 1, wherein:

A filter screen bracket, a Hepa filter screen and a filter screen detachable end cover are arranged in the dust collection bin (2);

the gauze is arranged on the filter screen bracket, so that the dust can be preliminarily filtered;

the Hepa filter screen is sleeved in the filter screen bracket and is relatively and stably fixed together by detaching the end cover through the filter screen;

the filter screen bracket, the Hepa filter screen and the filter screen dismounting end cover are tightly attached to the inner wall of the dust collection bin when being arranged in the dust collection bin;

The filter screen is dismantled the end cover and is the loop configuration, has a crosspiece on its diameter, and the people's of being convenient for finger is taken out filter screen dismantlement end cover and the filter screen support that links to each other rather than Hepa filter screen and is cleaned through this crosspiece.

8. The portable vacuum cleaner according to claim 1, wherein:

The end part of the cylinder body along the first direction is provided with a cylinder cap, when the cylinder cap is buckled on the cylinder body, the cylinder cap is tightly combined with the cylinder body, so that the cylinder cap and the cylinder body have the same radius or width in a second direction orthogonal to the first direction, and the surfaces of the cylinder cap and the cylinder body can be smoothly transited without generating drop height.

9. the portable vacuum cleaner according to claim 1, wherein:

The front electric quantity indicating lamp of the portable dust collector can be used for indicating the residual electric quantity of a battery, so that people can conveniently charge the battery in time.

10. the portable vacuum cleaner according to claim 1, wherein:

the back of the portable dust collector is provided with a plurality of groups of air outlet grids, each group is provided with a plurality of strip-shaped air outlets, the inner side of each strip-shaped air outlet is provided with an air guide grid which forms a certain angle with the strip-shaped air outlet, and an included angle is formed between the air guide grid and the flowing direction of the airflow, so that the portable dust collector can guide and deviate the flowing direction of the airflow;

The air outlet grille and the air guide grille play a three-dimensional flow guiding role in airflow, under the guiding role of the air outlet grille and the air guide grille, air flowing out of the portable dust collector is discharged from two sides of the dust collector and cannot be sprayed to hands of people gripping the handle, and therefore the air outlet grille and the air guide grille do not cause blowing feeling to people, and use comfort and experience are reduced.