CN210673208U - Columnar mini dust collector with upper and lower parts as shell - Google Patents

Abstract

The utility model provides a shell is mini dust catcher of upper and lower two parts, the shell divide into upper portion and lower part along the axial, the play axle place side of motor is connected with the wind-guiding seat, the wind-guiding seat is equipped with the wind-guiding hole around motor circumference, the periphery wall of wind-guiding seat pastes or the clearance sets up with lower part inner chamber mutually, the wind-guiding seat is connected with the support, the support covers the wind wheel and forms the room that induced drafts with between the wind-guiding seat, the support is equipped with the air intake, this air intake and the air outlet of filter are adjacent to be communicated or stretch into to be communicated or sealed to be communicated, the room that induced drafts is through wind-guiding hole and air-out end intercommunication, sealing connection between the air; the support is equipped with connection structure, and this connection structure is connected with the opening part that is located the same side of upper portion and lower part respectively, and upper portion and lower part link together through this connection structure and form the shell, and the advantage is: the structure of shell is further simplified, and the processing degree of difficulty of shell also reduces in addition.

Description

Columnar mini dust collector with upper and lower parts as shell

Technical Field

The utility model relates to a dust catcher technical field specifically says that a shell is the mini dust catcher of column of upper and lower two parts.

Background

The mini dust collector is one kind of dust collector, and its main characteristic lies in that the volume is less, it is easy to take in, it is good to carry the performance, the mini dust collector includes the body, the body installs the electric motor, the wind wheel, the filter mainly in, after the electricity, the electric motor drives the wind wheel to rotate, the wind wheel rotates to produce the suction, the air sucks from one end, the other end discharges at a high speed, therefore the air of the dust collection part (formed by the suction nozzle and the dust storehouse) of the front end of the mini dust collector is sucked constantly, cause the inside of the mini dust collector to produce the instantaneous vacuum, and the external atmospheric pressure forms the negative pressure, in the process that the air is sucked constantly, debris such as the dust are detained in the dust storehouse, the air is discharged by the tail of the mini dust collector after the filter filters, the dust storehouse is the trade term, and does not mean that can only store the dust.

We exemplify several mini-cleaners that have been disclosed, illustrating the difficulties and deficiencies found by the applicant:

1. the patent document, entitled multipurpose mini vacuum cleaner under utility model No. CN 202341943U, describes that it includes a cylindrical housing 1, and the housing 1 is composed of two halves 2 which are split and folded together and a rear cover 3 which is installed behind the two halves 2. The front part of a shell 1 is provided with an air suction cover 4, an air blade cavity 5 is arranged in the air suction cover 4, filter screens 6 are arranged around the air blade cavity 5, an air blade 7 is arranged in the air blade cavity 5, an air suction opening 8 is arranged at the front end of the air suction cover 4, the air suction opening 8 is communicated with the air blade cavity 5, a motor 9 is arranged in the shell 1, a rotating shaft 10 of the motor 9 is connected with the air blade 7, a battery box 12 for installing a dry battery 11 is arranged in the shell l, a sliding plate switch assembly 13 for controlling the motor 9 to rotate is arranged on the shell 1, and brushes 14 are arranged around the air suction opening 8 on the front end surface. An air outlet 150 communicated with the fan blade cavity 5 is arranged on the shell 1 opposite to the fan blade cavity 5, and a protective cover 16 covering the air suction cover 4 can be arranged at the front end of the air suction cover 4 and covers when not used.

2. No. CN 208590990U, utility model name is a vehicle-mounted vacuum cleaner, this patent document describes, including casing 1, fan 2, filter 3, casing 1 is the cartridge type structure, casing 1 front end is provided with inhales grey mouth 4 and inside coaxial setting gradually to the back by preceding filter 3, fan 2, filter 3 will casing 1 is by the dust separation of front end opening entering and messenger fan 2 produced air current by filter 3 passes through, inhale grey mouth 4 is the cavity suction nozzle structure, inhale grey mouth 4 the cavity with form confined ash storehouse 5 between the filter 3, casing 1 rear end is provided with power module 7.

The shell l, the fan 2 and the filter 3 are arranged from front to back and form an internal cavity, and the suction nozzle 4 is of a streamline structure and is used for sucking ash. The filter blocks dust in the dust bin 5, and the structure is a base for mounting the power module 7 at the rear, and is different from a traditional common vehicle-mounted dust collector. The rear part of the general vehicle-mounted dust collector is not provided with the power supply module 7, so that the wind resistance is smaller, an air outlet is arranged, and the design of a simple shell is not needed.

3. The utility model is a mini-sized dust collector with the name of 92214546.6, which is described in the patent document, a cylindrical shell (1) is made of engineering plastics, and the interior of the shell is divided into two grids, wherein one grid is a battery box (2) which can be used for accommodating two batteries No. 1, and the structure of the shell is similar to that of a common flashlight; the other grid is a motor room (3), a motor (4) provided with fan blades and an arc streamline surface is pushed along a guide edge of the inner wall of the shell (a certain gap is reserved between the motor and the shell), and a screw pin (6) positioned on the shell is screwed in after the motor is in place, so that the motor is fixed on the shell. Uncovering the movable block (6) at the joint of the motor and the battery box, connecting the motor wire end into the three-position contact switch (7), and then installing the movable block (6). Four fixing holes (8) are drilled on the shell at the joint part of the fan case, and the fan case plays a role in ventilating and cooling the motor. This assembles the axial flow fan. Then the horn mouth of the horn-shaped connector (9) with the fabric filter screen (10) is connected with the shell mouth by a hook (11) and a button (12), and an elastic sealing ring (13) is padded at the interface. The small-diameter end of the connector is tapped with threads and is connected with an elbow suction brush (14) or a straight extension suction brush (15). The elbow suction brush has 150 degrees of curvature, and the brush head is triangular, so that dust on small areas and small corners can be adsorbed. The straight-extending suction brush (15) has a rod diameter reduced to an ellipse (the major diameter is 1.2cm, the minor diameter is O.8cm), the length is about 25cm, the brush head is also elliptical, five claw teeth (16) at the brush end are about lmm lower than the brush hair, and the brush can be used for scratching except absorbing dust in tiny spaces.

From the above, we can find that 1) the mini dust collector is small, but the related parts are more, so that the further improvement is difficult; 2) in the prior art of mini dust collectors, the research on the relation between the shell and other components is not enough, the main research content is still in the component part, and the shell mainly adapts to the design of the component part, so that the design idea makes the structure of the shell further simplified and has difficulty, and the difficulty is increased for the processing of the shell.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's defect, provide a shell for the mini dust catcher of upper and lower two parts, the design of shell and the design of subassembly are heavy to make the structure of shell further simplify, the processing degree of difficulty of shell also reduces in addition, on this basis, realizes compact structure, has better performance simultaneously.

In order to solve the technical problem, the utility model provides a mini dust collector with an upper shell and a lower shell, which comprises a shell, a motor, a wind wheel and a filter, wherein the shell is divided into two parts along the axial direction, which are respectively marked as an upper part and a lower part; the filter, the wind wheel and the motor are sequentially positioned in the cylindrical installation inner cavity, an output shaft of the motor is connected with the wind wheel, the side of the output shaft of the motor is connected with a wind guide seat, the motor is fixedly connected with the wind guide seat and is fixed in the lower part through the wind guide seat, the wind guide seat is provided with wind guide holes around the circumference of the motor, the outer circumferential wall of the wind guide seat is attached to or arranged in a gap with the inner cavity of the lower part, the wind guide seat is connected with a support, the support covers the wind wheel and forms a wind suction chamber with the wind guide seat, the support is provided with an air inlet, the air inlet is adjacently communicated with an air outlet of the filter or extends into the filter for communication or is hermetically communicated with the air outlet end through the wind guide holes; the bracket is provided with a connection structure that is connected with the opening portions of the upper and lower portions on the same side, respectively, and the upper and lower portions are connected together to form the housing via the connection structure.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: the shell is divided into two parts along the axial direction, on one hand, the length of each part is not too long, on the other hand, the position relation and the connection relation of the shell and the assembly are changed, for example, the filter is positioned on the upper part and is easy to install, similarly, the motor, the wind wheel and the wind guide seat are positioned on the lower part and are easy to install, one part of the bracket is also positioned on the lower part of the shell, for example, the opening parts of the two parts which are positioned on the same side are connected through the connecting structure, so that the two parts are connected, the connecting position of the bracket and the upper part and the lower part is arranged on the opening parts, in short, through the improvement of multiple places, the idea of overlapping the design of the shell and the assembly is realized, so that the structure of the shell is further simplified, and simultaneously, the processing difficulty of the structure in the shell is also remarkably reduced, Has better performance.

As an improvement, the opening part of the lower part is provided with a first mounting surface for supporting and mounting the air guide seat, the periphery of the filter is provided with a peripheral mounting part, the opening part of the upper part is provided with a second mounting surface for supporting and mounting the peripheral mounting part, the connecting structure comprises two buckling hooks which are distributed in sequence along the axial direction and are oppositely arranged, the two buckling hooks are respectively marked as an upper buckling hook and a lower buckling hook, the two buckling hooks are in one group and are arranged in two or more groups, the upper buckling hook is buckled with an upper buckling groove arranged on the opening part of the upper part, the lower buckling hook is buckled with a lower buckling groove arranged on the opening part of the lower part, and after buckling, the filter, the bracket and the air guide seat are clamped and fixed by the first mounting surface and the second mounting surface along the axial direction of the shell The second mounting surface is also arranged close to the opening part, so that the processing difficulty is low, the third aspect is convenient to produce and assemble, the fourth aspect is convenient to assemble and disassemble the filter, and the filter can be conveniently assembled and disassembled only by taking the upper part down from the bracket;

or the upper part is connected with a first sleeve with openings at two ends, the opening of the first sleeve positioned at the air inlet end is used as an air inlet opening, the filter is sleeved in the first sleeve, and the end part of the first sleeve, which is far away from the opening of the air inlet end, replaces the second mounting surface, so that the second mounting surface of the upper part is not required to be processed, the structure of the upper part is simplified, and the filter can be disassembled and assembled without detaching the upper part from the bracket, thereby being more convenient;

or the lower part is connected with a second sleeve with openings at two ends, the opening of the second sleeve positioned at the air outlet end is used as an air outlet opening, and the end part of the opening of the second sleeve far away from the air outlet end replaces the first mounting surface, so that the first mounting surface does not need to be processed, and the structure of the lower part is simplified;

or the first sleeve and the second sleeve are arranged at the same time, and the corresponding mounting surfaces are replaced respectively, so that the first mounting surface and the second mounting surface are not required to be processed, the structure of the lower part is simplified, and the motor assembly and the filter which are connected with the air guide seat and the wind wheel can be disassembled and assembled without detaching the upper part or the lower part from the bracket, so that the production, assembly and maintenance are convenient;

or, in the above four cases, a positioning connection structure is further arranged between the support and the air guide seat, and the positioning connection structure adopts a matching structure of an axial groove arranged in the circumferential direction and an axial protrusion, so that the connection precision is further improved, the circumferential relative position between the support and the air guide seat is more stable, the stability of the air suction chamber is more facilitated, and the air suction performance is stable and reliable.

As an improvement, the bracket is provided with an air guide part, a first sealing ring is arranged on the circumference of an air outlet of the filter, and the lower end face of the first sealing ring is hermetically connected with the upper end face of the air guide part, so that air leakage is avoided, and the performance is better;

or the bracket is provided with an air guide part which is sleeved with the air suction opening of the wind wheel; the first sealing ring is arranged on the periphery of the air outlet of the filter, and the lower end face of the first sealing ring is in sealing connection with the upper end face of the air guide part, so that the air flow path is shorter and reaches the air suction opening of the wind wheel directly, air leakage is avoided, and the performance is better;

or the bracket is provided with an air guide part which is sleeved with the air suction opening of the wind wheel; the circumference of the air outlet of the filter is provided with a first sealing ring, the lower end face of the first sealing ring is in sealing connection with the upper end face of the air guide part, the support is in abutting connection with the filter through sealing connection, the abutting connection is used for clamping and fixing the filter, the support and the air guide seat by the first mounting face or the corresponding end part and the second mounting face or the corresponding end part along the axial direction of the shell, and therefore on one hand, an air flow passage is shorter and reaches the air suction opening of the wind wheel, meanwhile, air leakage is avoided more favorably, on the other hand, the sealing tight state of the first sealing ring is better, and the performance is better in a word.

As the improvement, the circumference of the air outlet of the filter is provided with an annular blind hole with a downward opening, the bottom of the annular blind hole is provided with a plurality of fixing holes distributed in the circumferential direction, the first sealing ring is sleeved with the annular blind hole, and the upper end face of the first sealing ring is provided with a plurality of convex parts matched with the fixing holes.

As an improvement, the air outlet side of the filter is positioned at one end of the filter far away from the air inlet end, and the part of the cylindrical installation inner cavity positioned between the end and the air inlet end is used as a dust bin; the circumference of air-out side is equipped with the circumference installation department, and sealing connection between this circumference installation department and the cylindric installation inner chamber, like this, on the one hand, is favorable to the dirt storehouse volume to be done greatly, can hold more, and on the other hand, air-out side and circumference installation department unite two into one, need not to go other positions and additionally set up the circumference installation department, simplify the structure, reduce the weight of filter.

As the improvement, the filter includes lid, filter core and seat, and lid, filter core and seat are connected according to the preface, and the seat is equipped with the air outlet, and the circumference of seat is equipped with the circumference installation department, sealing connection between this circumference installation department and the cylindric installation inner chamber, like this, be applicable to the design point of this application at first, be favorable to realizing the function from the casing angle, still ensure certain dirt storehouse volume simultaneously promptly compactly, then in addition such simple structure, the filtering surface can be done great (the filter effect is good).

As an improvement, the air guide hole comprises a first air guide surface, an inlet and a diffusion part which are arranged in sequence, the diffusion part is provided with a second air guide surface, the first air guide surface is used for guiding air flow in, and the second air guide surface is used for guiding the air flow downwards and discharging the air flow; each air guide hole is distributed along the circumferential direction in a cyclone shape, so that the suction force is favorably improved, the flow velocity is improved, and the air exhaust efficiency is high.

As the improvement, the air-out end is connected with the control lid, and the control lid is equipped with the exhaust vent, and the control lid still is equipped with the switch of power cord and control power cord break-make, and the power cord is connected with the motor electricity, like this, provides the position distribution preferred scheme of a control part structure, and such design makes shell side direction surface need not the trompil, the shell wholeness is good, and convenient operation is then to additional advantage, and the power cord also need not turn the quarter bend.

As an improvement, the on-off operation part of the switch is arranged in the middle, and the air outlet holes are distributed around the on-off operation part, so that a preferable scheme is provided, smooth air outlet is facilitated, and the switch operation is convenient;

or the on-off operation part of the switch is arranged in a non-centered mode, and the air outlet and the on-off operation part are distributed separately, so that another preferable scheme is provided, and the switch is convenient to install.

As an improvement, the upper part and the lower part are both cylinders which are axially penetrated by cylindrical through holes, and the cylindrical through holes are used as cylindrical installation inner cavities; the upper part and the lower part are both made of metal pipe fittings, so that the shape is regular and easy to manufacture, the metal pipe fittings are easy to obtain, the production and the manufacture are facilitated, the cost is reduced, the strength of the shell is guaranteed, the wall thickness is reduced, in addition, the metal pipe fittings can obtain better texture after surface treatment, and the metal pipe fittings adopted by the cylinder are also beneficial to improving the grade of the whole product.

Drawings

Fig. 1 is a front view of the mini vacuum cleaner of the present invention.

Fig. 2 is a bottom view of the mini vacuum cleaner of the present invention.

Fig. 3 is a top view of the mini vacuum cleaner of the present invention.

Fig. 4 is a half-sectional view of the mini vacuum cleaner of the present invention.

Fig. 5 is an enlarged view a of fig. 4.

Fig. 6 is an enlarged view B of fig. 4.

Fig. 7 is a perspective view of the mini vacuum cleaner after the lower part of the housing is removed.

Fig. 8 is a perspective view of fig. 7 with an upper portion of the housing removed.

Fig. 9 is a partially exploded perspective view of fig. 8.

Fig. 10 is a perspective view of the motor with the wind guide base.

Fig. 11 is a bottom perspective view of the wind guide seat.

Fig. 12 is a perspective view of a top view of the air guide seat (arrows indicate flow directions).

Fig. 13 is a perspective view of an inclined top view of the wind guide seat.

FIG. 14 is a perspective view of a top view of the seat.

FIG. 15 is a side perspective view of the seat.

Fig. 16 is a perspective view of the first seal ring.

Fig. 17 is a perspective view of the housing.

As shown in the figure, 1, a housing, 2, a motor, 3, a wind wheel, 4, a cover, 5, a filter element, 6, a seat, 7.1, an upper part, 7.2, a lower part, 8, a circumferential installation part, 9, a first sealing ring, 10, a second sealing ring, 11, an air suction chamber, 12, a dust bin, 13, a first installation surface, 14, a second installation surface, 15, an air inlet interface part, 16, an air guide seat, 17, a control cover, 18, an air outlet, 19, a power line, 20, a switch, 21, an air guide hole, 22, a bracket, 23, an air inlet, 24, an air outlet, 25, an upper buckling hook, 26, an electrode, 27, a check sheet, 28, an axial groove, 29, an axial protrusion, 30, an air guide part, 31, a lower buckling hook, 32, a fixing hole, 33, a convex part, 34, a first flow guide surface, 35, an inlet, 36, a diffusion part, 37, a second flow guide surface, 38, a fixing pin, 39 and.

Detailed Description

The following is a more detailed description of the present invention:

the utility model discloses a mini dust collector, including shell 1, motor 2, wind wheel 3 and filter, shell 1 is divided into two parts along the axial, and is marked as upper portion 7.1 and lower part 7.2 respectively, and the shell 1 that upper portion 7.1 and lower part 7.2 connect and form is equipped with cylindric installation inner chamber and both ends opening, and both ends opening is as air inlet end and air outlet end respectively; the filter, the wind wheel 3 and the motor 2 are sequentially positioned in the cylindrical installation inner cavity, the output shaft of the motor 2 is connected with the wind wheel 3, the side where the output shaft of the motor 2 is positioned is connected with the wind guide seat 16, the motor 2 is fixedly connected with the wind guide seat 16 and is fixed in the lower part 7.2 through the wind guide seat 16, the wind guide seat 16 is provided with wind guide holes 21 around the circumference of the motor 2, the peripheral wall of the wind guide seat 16 is attached to or arranged in a clearance way with the inner cavity of the lower part 7.2, in the embodiment, the wind guide seat 16 is connected in a close, the bracket 22 covers the wind wheel 3 and forms an air suction chamber 11 with the air guide seat 16, the bracket 22 is provided with an air inlet 23, the air inlet 23 is communicated with the air outlet 24 of the filter adjacently or extends into the filter to be communicated or is communicated in a sealing way, the air suction chamber 11 is communicated with the air outlet end through the air guide hole 21, the air outlet side of the filter is connected with the upper part 7.1 in a sealing way, and the dust bin 12 is formed between the filter and the upper part 7.1; the bracket 22 is provided with a connection structure which is connected with the opening portions of the upper part 7.1 and the lower part 7.2 on the same side, respectively, and via which the upper part 7.1 and the lower part 7.2 are connected together to form the housing 1. The motor 22 may be of a carbon brush or carbon-brush-less structure, in this example a carbon brush structure.

The opening part of the lower part 7.2 is provided with a first mounting surface 13 for supporting and mounting the air guide seat 16, the periphery of the filter is provided with a peripheral mounting part 8, the opening part of the upper part 7.1 is provided with a second mounting surface 14 for supporting and mounting the peripheral mounting part 8, the connecting structure comprises two buckling hooks which are distributed in sequence along the axial direction and are oppositely arranged, the two buckling hooks are respectively marked as an upper buckling hook 25 and a lower buckling hook 31, the two buckling hooks are one group and are arranged in two or more groups, the upper buckling hook 25 is buckled with an upper buckling groove arranged at the opening part of the upper part 7.1, the lower buckling hook 31 is buckled with a lower buckling groove arranged at the opening part of the lower part 7.2, and after buckling, the filter, the bracket 22 and the air guide seat 16 are clamped and fixed by the first mounting surface 13 and the second mounting; the four groups are arranged in the example shown in the figure, and the adjacent groups are spaced at intervals, so that the arrangement is favorable for reducing the circumferential length of the buckling groove arranged on the opening part, thereby being favorable for avoiding excessively weakening the strength of the opening part, and the wall thickness of the corresponding shell can be smaller, otherwise, the wall thickness is increased; the filter, the bracket 22 and the air guide seat 16 are connected and fixed by adopting the structure. Of course, other configurations are possible, such as:

1) the upper portion 7.1 is connected with a first sleeve with openings at two ends, the opening of the first sleeve positioned at the air inlet end is used as an air inlet opening, the filter is sleeved in the first sleeve, the end portion, far away from the opening of the air inlet end, of the first sleeve replaces the second mounting surface 14, and the second mounting surface 14 is provided by the end surface of the end portion.

2) The lower part 7.2 is connected with a second sleeve with two open ends, the opening of the second sleeve located at the air outlet end is used as an air outlet opening, the end part of the opening of the second sleeve far away from the air outlet end replaces the first mounting surface 13, namely the first mounting surface 13 is provided by the end surface of the end part.

3) With the first and second sleeves described, each replacing a respective mounting face, i.e. the second mounting face 14 is provided by an end face of an end of a respective sleeve.

4) In the above four cases, a positioning connection structure is further provided between the bracket 22 and the air guide seat 16, the positioning connection structure adopts a matching structure of an axial groove 28 and an axial protrusion 29 which are provided in the circumferential direction, the axial groove 28 can be provided on either the bracket 22 or the air guide seat 16, and the axial protrusion 29 can be adjusted adaptively.

The mounting surfaces or the mounting surfaces provided at the ends may be continuous annular lands or may be spaced apart lands, i.e. the portions of the lands have a separation, preferably a continuous annular land.

The air inlet opening is provided with a suction pipe connector 15, the suction pipe connector 15 is provided with a check sheet 27, the check sheet 27 is used for sealing before the suction pipe is inserted, dirty objects in the dust bin 12 are prevented from being poured out, when the suction pipe is inserted, the check sheet 27 can be opened, the check sheet 27 can be an elastic silica gel sheet, and the suction pipe can be different suction nozzle-shaped suction pipes, so that the suction pipe is not drawn in the attached drawing, but the understanding of the scheme of the application by general technicians in the industry is not hindered.

Straw interface member 15 and air inlet opening are through locating the locking of the fixed pin 38 swivelling joint of air inlet opening part, adopt removable structure, straw interface member 15 circumference be equipped with the helicla flute 39 of fixed pin 38 swivelling joint locking, after setting up like this, upper portion 7.1 structure is further simplified, the processing requirement further reduces.

The support 22 is provided with an air guide part 30, a first sealing ring 9 is arranged on the circumference of an air outlet 24 of the filter, and the lower end face of the first sealing ring 9 is connected with the upper end face of the air guide part 30 in a sealing manner; or, the bracket 22 is provided with an air guide part 30, and the air guide part 30 is sleeved with the air suction opening of the wind wheel 3; a first sealing ring 9 is arranged on the circumference of the air outlet 24 of the filter, and the lower end surface of the first sealing ring 9 is hermetically connected with the upper end surface of the air guide part 30; or, the bracket 22 is provided with an air guide part 30, and the air guide part 30 is sleeved with the air suction opening of the wind wheel 3; the circumference of the air outlet 24 of the filter is provided with a first sealing ring 9, the lower end surface of the first sealing ring 9 is connected with the upper end surface of the air guiding part 30 in a sealing manner, and the bracket 22 is connected with the filter in an abutting manner through a sealing connection, the abutting connection is used for clamping and fixing the filter, the bracket 22 and the air guiding seat 16 by the first mounting surface 13 or the corresponding end part and the second mounting surface 14 or the corresponding end part along the axial direction of the shell 1 after buckling, which is exemplified in the present case.

The circumference of the air outlet 24 of the filter is provided with an annular blind hole with a downward opening, the bottom of the annular blind hole is provided with a plurality of fixing holes 32 distributed in the circumferential direction, the first sealing ring 9 is sleeved with the annular blind hole, and the upper end face of the first sealing ring 9 is provided with a plurality of convex parts 33 matched with the fixing holes 32.

The air outlet side of the filter is positioned at one end of the filter far away from the air inlet end, and the part of the cylindrical installation inner cavity between the end and the air inlet end is used as a dust bin 12.

The circumference of air-out side is equipped with circumference installation department 8, and sealing connection between this circumference installation department 8 and the cylindric installation inner chamber adopts second sealing washer 10 to realize this sealing connection.

The filter includes lid 4, filter core 5 and seat 6, and lid 4, filter core 5 and seat 6 connect according to the preface, and seat 6 is equipped with air outlet 24, and the circumference of seat 6 is equipped with circumference installation department 8, sealing connection between this circumference installation department 8 and the cylindric installation inner chamber. Seat 6 is equipped with the annular blind hole of the downward open-ended that sets up around air outlet 24, and the bottom of annular blind hole is equipped with a plurality of fixed orificess 32 that circumference distributes, and first sealing washer 9 cup joints with the annular blind hole, and the up end of first sealing washer 9 be equipped with a plurality of convex parts 33 of fixed orifices 32 complex.

The air guide hole 21 comprises a first guide surface 34, an inlet 35 and a diffusion part 36 which are sequentially arranged, the diffusion part 36 is provided with a second guide surface 37, the first guide surface 34 is used for guiding air flow in, and the second guide surface 37 is used for guiding and discharging the air flow downwards; the air guide holes 21 are distributed in a cyclone shape along the circumferential direction.

As shown in fig. 11, the diffusing portion 36 is a portion between two sides as viewed in the drawing, and the opening is gradually enlarged.

The air outlet 24, the air inlet 23, the wind wheel 3 and the motor 2 are coaxially arranged, and the air outlet 24 and the air inlet 23 are arranged just opposite to each other, so that air flowing is facilitated, and efficiency is improved.

The air outlet end is connected with a control cover 17, the control cover 17 is provided with an air outlet 18, the control cover 17 is further provided with a power line 19 and a switch 20 for controlling the on-off of the power line 19, the power line 19 is electrically connected with the motor 2, the on-off operation part of the switch 20 is arranged in the middle, and the air outlet 18 is distributed around the on-off operation part. In this embodiment, the structure is mainly adopted, and the air outlet 18 is circular and has a plurality of air outlets 18, and the air outlets 18 are uniformly distributed around the circumference of the on-off operation part. It is noted that the power supply line 19 is not connected to the electrode 26 in the figures for the sake of simplicity of illustration, but this does not prevent a correct understanding of the solution of the present application.

Of course, other configurations are possible, such as: the on-off operation part of the switch 20 is not arranged in the center, and the air outlet 18 and the on-off operation part are distributed separately.

The upper part and the lower part are both cylinders which are axially penetrated by cylindrical through holes, and the cylindrical through holes are used as cylindrical installation inner cavities; the upper part and the lower part are both made of metal pipe fittings.

The metal pipe fittings such as aluminum alloy pipes, stainless steel pipes and the like are preferably aluminum alloy pipes, and have the advantages of light weight, high strength and low cost.

In the embodiment, as an example, the external power line 19 is a solution provided with a battery, for example, a battery unit is disposed in a space between the control cover 17 and the motor 2, a channel is disposed between the battery unit itself or the housing 1 for exhausting air flow, and the control cover 17 is provided with a charging interface, so as to form a solution provided with a battery.

The descriptions of first, second, etc. are provided for purposes of distinguishing between similar elements and not for describing a sequential or chronological order, but rather for describing a sequential or chronological order.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims (10)

1. A columnar mini dust collector with a shell of an upper part and a lower part comprises the shell, a motor, a wind wheel and a filter, and is characterized in that the shell is divided into the two parts along the axial direction, wherein the two parts are respectively marked as the upper part and the lower part; the filter, the wind wheel and the motor are sequentially positioned in the cylindrical installation inner cavity, an output shaft of the motor is connected with the wind wheel, the side of the output shaft of the motor is connected with a wind guide seat, the motor is fixedly connected with the wind guide seat and is fixed in the lower part through the wind guide seat, the wind guide seat is provided with wind guide holes around the circumference of the motor, the outer circumferential wall of the wind guide seat is attached to or arranged in a gap with the inner cavity of the lower part, the wind guide seat is connected with a support, the support covers the wind wheel and forms a wind suction chamber with the wind guide seat, the support is provided with an air inlet, the air inlet is adjacently communicated with an air outlet of the filter or extends into the filter for communication or is hermetically communicated with the air outlet end through the wind guide holes; the bracket is provided with a connection structure that is connected with the opening portions of the upper and lower portions on the same side, respectively, and the upper and lower portions are connected together to form the housing via the connection structure.

2. The cylinder-shaped mini-vacuum cleaner with the upper and lower shell parts as claimed in claim 1,

the opening part of the lower part is provided with a first mounting surface for supporting and mounting the air guide seat, the periphery of the filter is provided with a peripheral mounting part, the opening part of the upper part is provided with a second mounting surface for supporting and mounting the peripheral mounting part, the connecting structure comprises two buckling hooks which are distributed along the axial direction in sequence and are oppositely arranged, the two buckling hooks are respectively marked as an upper buckling hook and a lower buckling hook, the two buckling hooks are in one group and are arranged in two or more groups, the upper buckling hook is buckled with an upper buckling groove of the opening part arranged on the upper part, the lower buckling hook is buckled with a lower buckling groove of the opening part arranged on the lower part, and after buckling, the filter, the bracket and the air guide seat are clamped and fixed by the first mounting surface and;

or the upper part of the filter is connected with a first sleeve with openings at two ends, the opening of the first sleeve positioned at the air inlet end is used as an air inlet opening, the filter is sleeved in the first sleeve, and the end part of the first sleeve, which is far away from the opening of the air inlet end, replaces the second mounting surface;

or the lower part of the second sleeve is connected with a second sleeve with openings at two ends, the opening of the second sleeve positioned at the air outlet end is used as an air outlet opening, and the end part of the opening of the second sleeve far away from the air outlet end replaces the first mounting surface;

or, the first sleeve and the second sleeve are provided at the same time, and respectively replace the corresponding mounting surfaces;

or, in the above four cases, a positioning connection structure is further arranged between the support and the air guide seat, and the positioning connection structure adopts a matching structure of an axial groove and an axial protrusion arranged in the circumferential direction.

3. The cylindrical mini dust collector with the upper and lower shell parts as claimed in claim 1 or 2, wherein the bracket is provided with an air guide part, the circumference of the air outlet of the filter is provided with a first sealing ring, and the lower end surface of the first sealing ring is hermetically connected with the upper end surface of the air guide part;

or the bracket is provided with an air guide part which is sleeved with the air suction opening of the wind wheel; a first sealing ring is arranged on the periphery of the air outlet of the filter, and the lower end face of the first sealing ring is hermetically connected with the upper end face of the air guide part;

or the bracket is provided with an air guide part which is sleeved with the air suction opening of the wind wheel; the periphery of the air outlet of the filter is provided with a first sealing ring, the lower end face of the first sealing ring is in sealing connection with the upper end face of the air guide part, the support is in abutting connection with the filter through sealing connection, and the abutting connection is used for clamping and fixing the filter, the support and the air guide seat by the first mounting face or the corresponding end part and the second mounting face or the corresponding end part along the axial direction of the shell after buckling.

4. The cylindrical mini dust collector with the upper and lower casing parts as claimed in claim 3, wherein the air outlet of the filter is circumferentially provided with a ring-shaped blind hole with a downward opening, the bottom of the ring-shaped blind hole is provided with a plurality of circumferentially distributed fixing holes, the first sealing ring is sleeved with the ring-shaped blind hole, and the upper end surface of the first sealing ring is provided with a plurality of protrusions engaged with the fixing holes.

5. The cylindrical mini dust collector with the upper and lower parts of the shell as claimed in claim 1, wherein the air outlet side of the filter is located at one end of the filter far away from the air inlet end, and the part of the cylindrical installation cavity between the end and the air inlet end is used as a dust bin; the circumference of the air outlet side is provided with a circumferential installation part, and the circumferential installation part is hermetically connected with the cylindrical installation inner cavity.

6. The cylindrical mini vacuum cleaner with the upper and lower casing parts as claimed in claim 1, wherein the filter comprises a cover, a filter element and a base, the cover, the filter element and the base are connected in sequence, the base is provided with an air outlet, the base is provided with a circumferential installation part in the circumferential direction, and the circumferential installation part is connected with the cylindrical installation cavity in a sealing manner.

7. The cylindrical mini dust collector with the upper and lower shell parts according to claim 1 is characterized in that the air guiding hole comprises a first guiding surface, an inlet and a diffusion part which are arranged in sequence, the diffusion part is provided with a second guiding surface, the first guiding surface is used for guiding air flow in, and the second guiding surface is used for guiding and discharging air flow downwards; the air guide holes are distributed along the circumferential direction in a cyclone shape.

8. The cylinder-shaped mini dust collector with the upper and lower shell parts as claimed in claim 1, wherein the air outlet end is connected with a control cover, the control cover is provided with an air outlet hole, the control cover is further provided with a power cord and a switch for controlling the on-off of the power cord, and the power cord is electrically connected with the motor.

9. The cylindrical mini dust collector with the upper and lower shell parts as claimed in claim 8, wherein the on-off operation part of the switch is arranged in the center, and the air outlets are distributed around the on-off operation part;

or the on-off operation part of the switch is arranged in the non-center, and the air outlet and the on-off operation part are distributed separately.

10. The cylindrical mini vacuum cleaner with the upper and lower casing parts as claimed in claim 1, wherein the upper and lower parts are cylinders axially penetrated by cylindrical through holes as cylindrical mounting cavities; the upper part and the lower part are both made of metal pipe fittings.

Images