CN210961778U - Split type columnar mini dust collector with higher strength at joint - Google Patents

Abstract

The utility model provides a split type columnar mini dust collector with higher strength of a joint, a shell is divided into two parts along the axial direction, an output shaft of a motor is connected with a wind wheel to form an air suction unit, the air suction unit is fixed in a lower part, a filter is fixed in an upper part, an air inlet of the air suction unit is communicated with an air outlet of the filter in a sealing way, the air outlet side of the filter is connected with the upper part in a sealing way, and a dust bin is formed between the filter and the upper part; the upper portion has cup jointed first connecting piece, and the second connecting piece has been cup jointed to the lower part, and first connecting piece, second connecting piece are the cylinder shape, first connecting piece and second connecting piece detachable connection, and upper portion and lower part link together through this detachable connection and form the shell, and the advantage is: the design of shell and the design of subassembly are heavy to make the structure of shell further simplify, upper and lower two parts junction intensity is higher, and the processing degree of difficulty of shell also reduces in addition, on this basis, realizes compact structure.

Description

Split type columnar mini dust collector with higher strength at joint

Technical Field

The utility model relates to a dust catcher technical field specifically says to a split type mini dust catcher of column that junction intensity is higher.

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 also increased for the processing of the shell, and particularly, the scheme that the shell is designed in a split structure and has a more compact structure is not seen yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's defect, provide the higher split type column mini dust catcher of junction intensity, the design of shell and the design of subassembly are heavy to make the structure of shell further simplify, upper and lower two parts junction intensity is higher, the processing degree of difficulty of shell also reduces in addition, on this basis, realizes compact structure.

In order to solve the technical problem, the utility model provides a split type columnar mini dust collector with higher joint strength, which comprises a shell, a motor, a wind wheel and a filter, wherein the shell is divided into two parts along the axial direction, the two parts are respectively marked as an upper part and a lower part, the shell formed by connecting the upper part and the lower part is a cylinder, the cylinder is provided with a cylindrical installation inner cavity and is provided with openings at two ends, and the openings at two ends are respectively used as an air inlet end and an air outlet end; the filter, the wind wheel and the motor are sequentially positioned in the cylindrical mounting inner cavity, the output shaft of the motor is connected with the wind wheel to form an air suction unit, the air suction unit is fixed in the lower part, the filter is fixed in the upper part, the air inlet of the air suction unit is communicated with the air outlet of the filter at intervals or adjacently communicated or stretched into a sleeve joint communication or a sealing communication, the air outlet side of the filter is connected with the upper part in a sealing way, and a dust bin is formed between the filter and the upper part; the upper part is sleeved with a first connecting piece, the lower part is sleeved with a second connecting piece, the first connecting piece is detachably connected with the second connecting piece, and the upper part and the lower part are connected together through the detachable connection to form the shell.

After adopting above-mentioned structure, compare with prior art, the utility model has the advantages of it is following: the shell formed by connecting the upper part and the lower part is a cylinder, and the first connecting piece and the second connecting piece are arranged by sleeving, so that a certain reinforcing effect can be achieved on the joint, the strength of the joint of the upper part and the lower part is higher, in addition, 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 component are also changed, for example, a filter is positioned on the upper part and is easy to assemble, and similarly, a motor and a wind wheel are positioned on the lower part and are easy to assemble, in addition, the two parts are connected through the first connecting piece and the second connecting piece, the connecting positions of the upper part and the lower part are arranged on the opening part, in a word, the thinking that the design of the shell and the design of the component are repeated is realized, meanwhile, the processing difficulty of the shell is obviously reduced, for example, the processing difficulty of the structure in the shell is reduced, and in addition, the structure is compact.

As an improvement, the structure of the air suction unit comprises:

the side of the output shaft of the motor is connected with an air guide seat, the motor is fixedly connected with the air guide seat and is fixed in the lower part through the air guide seat, the air guide seat is provided with air guide holes around the circumference of the motor, the outer circumferential wall of the air guide seat is attached to or arranged in a clearance with the inner cavity of the lower part, the air guide seat is connected with a support, the support covers the wind wheel and forms an air suction chamber with the air guide seat, the support is provided with an air inlet, the air inlet is used as an air inlet of an air suction unit, and the air; the bracket is independently arranged or the second connecting piece is used as the bracket, so the structure is simple and compact, the air guide seat can also play a certain role in guiding air, the air suction chamber is favorable for improving the air suction performance, and in addition, the structure can be further simplified if the second connecting piece is used as the bracket;

or the shell of the motor is attached to or arranged in a clearance way with the inner cavity of the lower part, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, and the other end of the airflow channel is communicated with the air outlet end, so that an air guide seat is omitted, the number of components is less, the structure is more compact, and the radial size of the dust collector is reduced;

or the shell of the motor is attached to or arranged in a gap with the inner cavity of the lower part, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, the other end of the airflow channel is communicated with the air outlet end, the motor is provided with a support, the support covers the wind wheel to form an air suction chamber, the support is provided with an air inlet, the air inlet is used as an air inlet of an air suction unit, and the air suction chamber is communicated with the air outlet end through the airflow; the bracket is independently arranged or the second connecting piece is used as the bracket, so that the air guide seat is cancelled, and the air suction chamber is more favorable for improving the air suction performance;

or in the above situation, the lower part is provided with the first mounting surface, the first mounting surface provides axial downward limiting, after the second connecting piece is sleeved with the lower part, the second connecting piece and the first mounting surface clamp and fix the air guide seat in the inner cavity of the lower part, or under the situation that the air guide seat is not provided, the second connecting piece and the first mounting surface clamp and fix the motor in the inner cavity of the lower part, so that on one hand, the structure is simple and compact, on the other hand, the separate fixation is realized, and when the upper part and the lower part are disassembled, the lower part assembly cannot fall out;

or, in the above situation, a positioning connection structure is further arranged between the support and the air guide seat, and the positioning connection structure adopts a first axial groove and a first axial convex matching structure which are arranged in the circumferential direction, 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, a first connecting piece is in threaded connection and sleeve joint with the upper part, a wind guide seat is in threaded connection and sleeve joint with the lower part, a second connecting piece is in axial buckling and sleeve joint with the lower part and is axially connected with the wind guide seat, a positioning connecting structure is arranged between the second connecting piece and the wind guide seat, and the positioning connecting structure adopts a matching structure of a first axial groove and a first axial bulge which are arranged in the circumferential direction; first connecting piece cup joints or threaded connection cup joints with the rotatory joint of second connecting piece, and like this, simple structure is compact on the one hand, and on the other hand joint strength is higher, connects more firmly, and in addition, the dismouting of upper and lower part is very convenient.

As an improvement, the circumference of the filter is provided with a circumferential installation part, the filter is sleeved with the first connecting piece and extends into the upper part, after the first connecting piece is detachably connected with the second connecting piece, the circumferential installation part is abutted to the first connecting piece by the second connecting piece, and the circumferential installation part is clamped and fixed by the first connecting piece and the second connecting piece, so that on one hand, the structure is simple and compact, on the other hand, the filter is very convenient to disassemble, namely the upper part and the lower part are disassembled, then the filter can be taken out, and the filter can be installed reversely, and in this way, a dust pouring use mode is also provided, namely, the filter is disassembled, dust is poured through the lower end opening of the lower part, the dust pouring mode can be poured more cleanly, a user can check the use state of the filter conveniently, the filter can be replaced timely, and in addition, the dust pouring is, therefore, the straw interface can be basically flush with the upper end face of the shell, and the shell is mainly exposed outside, so that the overall appearance consistency is better, the texture is better, and the structure has the advantages;

or, the opening part of the upper part is provided with a second mounting surface for supporting the first connecting piece, after the first connecting piece is sleeved with the upper part, the first connecting piece is limited by the second mounting surface in the axial direction, the circumferential mounting part is arranged in the circumferential direction of the filter, the filter is sleeved with the first connecting piece and extends into the upper part, and after the first connecting piece is detachably connected with the second connecting piece, the circumferential mounting part is abutted to the first connecting piece by the second connecting piece, and the circumferential mounting part is clamped and fixed by the first connecting piece and the second connecting piece, so that the axial limiting of the first mounting surface can be enhanced, the first connecting piece and the filter can be fixed more stably, and the structure is simple and compact;

or, in the above case, a positioning connection structure is further arranged between the first connecting piece and the upper part, and the positioning connection structure adopts a second axial groove arranged in the circumferential direction and a matching structure protruding in the second axial direction, so that the connection precision is further improved, and the circumferential limit of the first connecting piece is enhanced, so that the first connecting piece is kept still when the upper part and the lower part are rotationally disassembled and assembled.

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 support is equipped with the wind-guiding portion, the second connecting piece is as this support, the circumference of the air outlet of filter is equipped with first sealing washer, the lower terminal surface of this first sealing washer and the up end sealing connection of wind-guiding portion, and after first connecting piece and the detachable connection of second connecting piece, the circumference installation department is in first connecting piece through first sealing washer butt by the second connecting piece, the circumference installation department is by wind-guiding portion and the fixed state of second connecting piece centre gripping, thus, the circumference installation department is in first connecting piece through first sealing washer butt by the second connecting piece, be favorable to keeping sealed, simplify the structure simultaneously, and the reverse elasticity that this butt produced, still more have the feeling when making the dismouting of upper and lower part, and after the upper and lower part is connected, this reverse elasticity is favorable to keeping the upper and lower part to connect firmly, be applicable to the vibration.

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 sealing connection between the air outlet side and the upper part of the filter means that a circumferential installation part is arranged on the circumference of the filter, a second sealing ring is arranged on the circumferential installation part, the filter is sleeved with a first connecting piece and extends into the upper part, and after the first connecting piece is detachably connected with a second connecting piece, the circumferential installation part and the second sealing ring are butted in the first connecting piece in a sealing way by the second connecting piece, and the circumferential installation part is in a state of being clamped and fixed by the first connecting piece and the second connecting piece in a sealing way, so that by utilizing the detachable structure of the upper part and the lower part, the circumferential installation part and the second sealing ring are butted in the first connecting piece in a sealing way by the second connecting piece, the structure is simple and compact, the sealing effect is better, meanwhile, the reverse elasticity generated by the butting can also enable the upper part and the lower part to have more hand feeling during the, is suitable for vibration use environment.

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, like this, is applicable to the design point of this application at first, is favorable to starting from the casing angle to realize the function, and the compactness still ensures certain dirt storehouse volume simultaneously promptly, and the other then 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 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 a perspective view of the mini vacuum cleaner with the upper part of the housing removed.

Fig. 6 is a perspective view of the mini vacuum cleaner after the lower part of the housing is removed.

Fig. 7 is a perspective view of the mini vacuum cleaner with the housing removed.

Fig. 8 is a perspective view of the lower portion of the housing of the mini vacuum cleaner of the present invention.

Fig. 9 is a perspective view of the upper portion of the housing of the mini vacuum cleaner of the present invention.

Fig. 10 is a perspective view of fig. 9 with the first connector removed.

Fig. 11 is a perspective view of a relevant portion of the filter.

Fig. 12 is a perspective view of fig. 11 from another perspective.

Fig. 13 is a perspective view of the filter.

Fig. 14 is a perspective view of the second seal ring.

Fig. 15 is a partial front view of fig. 7 with the first and second connectors removed.

Fig. 16 is a partial perspective view of fig. 7 with the first connector and the second seal ring removed.

Fig. 17 is a perspective view of the second connector.

Fig. 18 is a perspective view from another perspective of the second connector.

Fig. 19 is a perspective view of the air intake interface piece.

Fig. 20 is a perspective view of fig. 19 with the bushing removed.

Fig. 21 is a front view of the embodiment in which the first connecting member is sleeved with the upper portion and the air guide seat is sleeved with the lower portion.

Fig. 22 is a perspective view of the motor with the wind guide base.

Fig. 23 is a bottom perspective view of the wind guide seat.

Fig. 24 is a perspective view of a top view of the air guide seat (arrows indicate flow directions).

Fig. 25 is a perspective view of an inclined top view of the wind guide seat.

FIG. 26 is a perspective view of a top view of the seat.

Fig. 27 is a perspective view of the first seal ring.

Fig. 28 is a half-section view of the suction unit with the motor housing in contact with the cavity of the lower part or in a clearance arrangement.

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, a 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 wire, 20, a switch, 21, a third sealing ring, 23, an air inlet, 24, an air outlet, 25, a support rib, 26, an electrode, 27, a check sheet, 28, a first axial groove, 29, a first axial bulge, 30, a second axial groove, 31, a second axial bulge, 32, a fixing hole, 33, a bulge, 34, a first flow guide surface, 35, an inlet, 36, a diffusion part, 37, a second flow guide surface, 38, a wind guide part, 39, a USB interface, 40, a USB, The rotor comprises a first buckle hook, 41, a first buckle groove, 42, a rotary clamping block, 43, a rotary clamping groove, 44, a lining, 45, a first connecting piece, 46, a second connecting piece, 47, a second buckle hook, 48, a second buckle groove, 49, a first thread, 50, a second thread, 51, a rotor, 52, a permanent magnet, 53, a cross bar part, 54, a stop block, 55, a tail cover, 56 and an airflow channel.

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 it is the cylinder respectively to mark as upper portion 7.1 and lower part 7.2, 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 mounting inner cavity, an output shaft of the motor 2 is connected with the wind wheel 3 to form an air suction unit, the air suction unit is fixed in the lower part 7.2, the filter is fixed in the upper part 7.1, an air inlet 23 of the air suction unit is communicated with an air outlet 24 of the filter at intervals or adjacently or is in sleeved connection or sealed connection, in the embodiment, the air inlet is in sealed connection, the air outlet side of the filter is in sealed connection with the upper part 7.1, and a dust bin 12 is formed between the filter and the upper part 7.1; the upper part 7.1 is sleeved with a first connecting piece 45, the lower part 7.2 is sleeved with a second connecting piece 46, the first connecting piece 45 is detachably connected with the second connecting piece 46, and the upper part 7.1 and the lower part 7.2 are connected together through the detachable connection to form the shell 1. The motor 2 may be of a carbon brush structure or a carbon-brush-free structure, and in this example, the structure is a carbon brush structure.

The upper part 7.1 and the lower part 7.2 are connected in a detachable manner, and can be clamped in a rotating manner or in a threaded manner, in the embodiment, the upper part 7.1 and the lower part 7.2 are clamped in a rotating manner through a rotating clamping block 42 arranged on the circumferential direction of the lower part 7.2 and a rotating clamping groove 43 arranged on the upper part 7.1, and the rotating clamping block 42 and the rotating clamping groove 43 can be used interchangeably.

The structure of the air suction unit comprises: the side of the output shaft of the motor 2 is connected with an air guide seat 16, the motor 2 is fixedly connected with the air guide seat 16 and is fixed in the lower part 7.2 through the air guide seat 16, the air guide seat 16 is provided with air guide holes around the circumference of the motor 2, the outer circumferential wall of the air guide seat 16 is attached to or arranged in a clearance with the inner cavity of the lower part 7.2, the air guide seat 16 is connected with a support, the support covers the wind wheel 3 and forms an air suction chamber 11 with the air guide seat 16, the support is provided with an air inlet 23, the air inlet 23 is used as an air inlet 23 of an air suction unit, and the air suction; the bracket is provided separately or the second connector 46 is used as the bracket, and in the embodiment, the second connector 46 is used as the bracket. When the stand is provided separately, the stand can be connected with the second connecting member 46 by a sleeve connection, an axial buckling connection, or the like.

The lower part 7.2 is provided with a first mounting surface 13, the first mounting surface 13 provides axial downward limiting, and after the second connecting piece 46 is sleeved with the lower part 7.2, the second connecting piece 46 and the first mounting surface 13 clamp and fix the air guide seat 16 in the inner cavity of the lower part 7.2. For the sleeve connection of the second connecting element 46 with the lower part 7.2, for example, the second connecting element 46 is fixed with the lower part 7.2 by fastening the second hook 47 disposed on the circumferential direction of the second connecting element 46 with the second groove 48 disposed on the inner circumferential wall of the lower part 7.2.

And a positioning connection structure is also arranged between the bracket and the air guide seat 16, and the positioning connection structure adopts a matching structure of a first axial groove 28 and a first axial bulge 29 which are arranged in the circumferential direction.

The structure of the suction unit can also be other structures, such as no wind guide seat 16: the shell of the motor 2 is attached to or arranged in a clearance with the inner cavity of the lower part 7.2, the interval between the shell of the motor 2 and the rotor 51 of the motor 2 is used as an airflow channel 56, one end of the airflow channel 56 is communicated with the wind wheel 3, and the other end of the airflow channel 56 is communicated with the air outlet end; for another example, the housing of the motor 2 is attached to or disposed in a gap with the inner cavity of the lower portion 7.2, the space between the housing of the motor 2 and the rotor 51 of the motor 2 serves as an airflow channel 56, one end of the airflow channel 56 is communicated with the wind wheel 3, the other end of the airflow channel 56 is communicated with the air outlet end, the motor 2 is provided with a support, the support covers the wind wheel 3 to form an air suction chamber 11, the support is provided with an air inlet 23, the air inlet 23 serves as an air inlet 23 of an air suction unit, and the air suction chamber 11 is communicated with the air outlet end through the airflow channel; the bracket is provided separately or the second connector 46 serves as the bracket.

For the scheme design that the shell of the motor 2 is attached to the inner cavity of the lower part 7.2 or a gap is arranged, the air suction unit under the scheme does not have the air guide seat 16, and can be in a structure as shown in fig. 28, the shell of the motor 2 can be an integral cylindrical member, the axial half section is in an H shape and is separated by an H-shaped cross bar part 53, as shown in the figure, a tail cover 55 is arranged at the lower end opening of the H shape, the tail cover 55 is provided with the electrode 26 and the carbon brush, the tail cover 55 and the cross bar part 53 are used for rotatably supporting the rotor 51, the permanent magnet 52 is arranged in a space between the tail cover 55 and the H-shaped cross bar part 53, two blocks 54 are uniformly distributed in the shell of the motor 2 in the circumferential direction, the two blocks 54 separate the two permanent magnets 52, and meanwhile. The upper portion of the H-shaped bar portion 53 is adapted to be connected to the second connector 46 and to participate in the formation of the suction chamber 11.

The lower part 7.2 is provided with a first mounting surface 13, the first mounting surface 13 provides axial downward limiting, and after the second connecting piece 46 is sleeved with the lower part 7.2, the second connecting piece 46 and the first mounting surface 13 clamp and fix the motor 2 in an inner cavity of the lower part 7.2 under the condition that the wind guide seat 16 is not arranged.

The first mounting surface 13 is provided by a plurality of axially disposed support ribs 25 arranged circumferentially in the inner cavity of the lower part 7.2, or may be provided by other structures, such as a connecting sleeve of the lower part 7.2, the end surface of the connecting sleeve being used as the first mounting surface 13, or, for example, an annular platform machined in the inner cavity of the lower part 7.2, the platform surface of the annular platform being used as the first mounting surface 13.

The opening part of upper segment 7.1 is equipped with the second installation face 14 that supports first connecting piece 45, first connecting piece 45 cup joints the back with upper segment 7.1, first connecting piece 45 is spacing in second installation face 14 axial, the circumference of filter is equipped with circumference installation department 8, the filter cup joints with first connecting piece 45 and stretches into in the upper segment 7.1, and behind first connecting piece 45 and the detachable connection of second connecting piece 46, circumference installation department 8 is by second connecting piece 46 butt in first connecting piece 45, circumference installation department 8 is by the fixed state of first connecting piece 45 and the centre gripping of second connecting piece 46.

The first connecting piece 45 is sleeved with the upper part 7.1 and fixed through the axial buckling and connecting fit of the first buckle hook 40 and the first buckle groove 41.

A positioning connection structure is further arranged between the first connecting piece 45 and the upper part 7.1, and the positioning connection structure adopts a matching structure of the second axial groove 30 and the second axial protrusion 31 which are arranged in the circumferential direction.

The support is provided with an air guide portion 38, the second connecting piece 46 is used as the support, a first sealing ring 9 is arranged on the periphery of the air outlet 24 of the filter, the lower end face of the first sealing ring 9 is connected with the upper end face of the air guide portion 38 in a sealing mode, after the first connecting piece 45 is detachably connected with the second connecting piece 46, the peripheral installation portion 8 is abutted into the first connecting piece 45 through the first sealing ring 9 by the second connecting piece 46, and the peripheral installation portion 8 is clamped and fixed by the air guide portion 38 and the second connecting piece 46.

Sealing connection between the air outlet side of the filter and the upper part 7.1 means that the circumferential direction of the filter is provided with a circumferential installation part 8, the circumferential installation part 8 is provided with a second sealing ring 10, the filter is sleeved with a first connecting piece 45 and extends into the upper part 7.1, and after the first connecting piece 45 is detachably connected with a second connecting piece 46, the circumferential installation part 8 is connected with the second sealing ring 10 in the first connecting piece 45 in a sealing and abutting mode through the second connecting piece 46, and the circumferential installation part 8 is in a state of being clamped and fixed in a sealing mode through the first connecting piece 45 and the second connecting piece 46.

Of course, the relationship between the upper part 7.1, the first connecting element 45 and the filter can also be other structural designs, such as: the circumference of the filter is provided with a circumferential installation part 8, the filter is sleeved with the first connecting piece 45 and extends into the upper part 7.1, after the first connecting piece 45 is detachably connected with the second connecting piece 46, the circumferential installation part 8 is abutted in the first connecting piece 45 by the second connecting piece 46, and the circumferential installation part 8 is clamped and fixed by the first connecting piece 45 and the second connecting piece 46; the filter is only simply sealed with the upper part 7.1, i.e. clamped and fixed by the first connecting piece 45 and the second connecting piece 46 by means of the circumferential mounting part 8, although other sealing structures can be provided for improving the sealing performance.

The abutting relationship of the second connector 46 to the filter may be other configurations, such as: the second connection 46 extends upwards to abut directly against the lower side of the seat 6 of the filter, instead of against the first sealing ring 9.

The second mounting surface 14 is provided by a plurality of axially disposed second axial projections 31 arranged circumferentially in the cavity of the upper part 7.1, but other configurations are also possible, such as an upper part 7.1 connecting sleeve, the end surface of which serves as the second mounting surface 14, or for example, an annular platform machined in the cavity of the upper part 7.1, the platform surface of which serves as the second mounting surface 14.

If the first mounting surface 13 and the second mounting surface 14 are provided by sleeves, for example, the first sleeve and the second sleeve are provided to replace the corresponding mounting surfaces, so that the structure of the upper part and the lower part can be simplified without processing the first mounting surface and the second mounting surface or providing the support rib 25 and the second axial protrusion 31 shown in the figure, and the air suction unit assembly and the filter connected with the air guide seat 16 and the wind wheel 3 can be disassembled without separating the upper part 7.1 or the lower part 7.2, thereby providing certain convenience for production, assembly and maintenance.

The scheme design of each component between the upper part 7.1 and the lower part 7.2 can also be as follows: the first connecting piece 45 is in threaded connection and sleeve joint with the upper part 7.1 through a second thread 50, the air guide seat 16 is in threaded connection and sleeve joint with the lower part 7.2 through a first thread 49, the second connecting piece 46 is in axial buckling and sleeve joint with the lower part 7.2, the second connecting piece 46 is in axial connection with the air guide seat 16, a positioning connecting structure is arranged between the second connecting piece 46 and the air guide seat 16, and the positioning connecting structure adopts a matching structure of a first axial groove 28 and a first axial bulge 29 which are arranged in the circumferential direction; first connecting piece 45 cup joints with the rotatory joint of second connecting piece 46 or threaded connection cup joints, for rotatory joint in the embodiment, like this, simple structure is compact on the one hand, and on the other hand joint strength is higher, connects more firmly, and in addition, the dismouting of upper and lower part 7.2 is very convenient.

The mounting surfaces may be continuous annular mesas or mesas with spacing, i.e. each portion of the mesa has a partition, which is used in the embodiment.

The air inlet opening is provided with an air inlet connector 15, the air inlet 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, the suction pipe can be in different suction nozzle shapes, therefore, the suction pipe is not drawn in the attached drawing, but the understanding of the scheme of the application by general technical personnel in the industry is not hindered.

Air inlet interface spare 15 is connected with bush 44, bush 44 and upper portion 7.1's inner chamber axial lock joint, and the constant head tank and the protruding 31 location fit of second axial of bush 44, thereby it is spacing to bush 44 circumference, adopt removable structure between air inlet interface spare 15 and the bush 44, in the embodiment be rotatory joint, thus, insert the straw, regard the straw as the rotor arm, rotate the straw, it rotates to drive air inlet interface spare 15 by the straw, then can make things convenient for dismouting air inlet interface spare 15, it then can fall the dirt to pull down air inlet interface spare 15, above-mentioned after setting up like this, upper portion 7.1 structure is further simplified, the processing requirement further reduces.

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-out side of filter is located the one end of keeping away from the air inlet end of filter, and the part that is located between this end and the air inlet end of cylindric installation inner chamber is as dirt storehouse 12, and like this, on the one hand, be favorable to dirt storehouse 12 volume to do greatly, can hold more, and on the other hand, air-out side and circumference installation department 8 unite two into one, need not to go other positions and additionally set up circumference installation department 8, simplify the structure, reduce the weight of filter.

The third sealing ring 21 is arranged on the circumference of the second connecting piece 46, and the third sealing ring 21 is in sealing sleeve connection with the inner cavity of the upper part 7.1, so that a seal is added between the upper part 7.2 and the lower part.

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. 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 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 are distributed along the circumferential direction in a cyclone shape.

As shown in fig. 23, 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 USB interface 39 connected with a power supply, the switch 20 for controlling on-off is controlled, 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 designed in a manner that a plurality of fan-shaped holes are radially distributed, and the fan-shaped holes are uniformly distributed around the circumference of the on-off operation part. 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 this embodiment, an example of a scheme of externally connecting a power supply through the USB interface 39 is illustrated, and the present application may also adopt a scheme of self-contained 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 and the housing 1 for discharging air flow, and the control cover 17 is provided with a charging interface, thereby forming a scheme of self-contained 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 split type columnar mini dust collector with high joint strength comprises a shell, a motor, a wind wheel and a filter, and is characterized in that the shell is divided into two parts along the axial direction, wherein the two parts 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 mounting inner cavity, the output shaft of the motor is connected with the wind wheel to form an air suction unit, the air suction unit is fixed in the lower part, the filter is fixed in the upper part, the air inlet of the air suction unit is communicated with the air outlet of the filter at intervals or adjacently communicated or stretched into a sleeve joint communication or a sealing communication, the air outlet side of the filter is connected with the upper part in a sealing way, and a dust bin is formed between the filter and the upper part; the upper part is sleeved with a first connecting piece, the lower part is sleeved with a second connecting piece, the first connecting piece and the second connecting piece are in a cylinder shape, the first connecting piece is detachably connected with the second connecting piece, and the upper part and the lower part are connected together through the detachable connection to form a shell.

2. The split cylindrical mini dust collector with higher joint strength as claimed in claim 1, wherein the structure of the suction unit comprises:

the side of the output shaft of the motor is connected with an air guide seat, the motor is fixedly connected with the air guide seat and is fixed in the lower part through the air guide seat, the air guide seat is provided with air guide holes around the circumference of the motor, the outer circumferential wall of the air guide seat is attached to or arranged in a clearance with the inner cavity of the lower part, the air guide seat is connected with a support, the support covers the wind wheel and forms an air suction chamber with the air guide seat, the support is provided with an air inlet, the air inlet is used as an air inlet of an air suction unit, and the air; the bracket is independently arranged or the second connecting piece is used as the bracket;

or the shell of the motor is attached to or arranged in a clearance way with the inner cavity of the lower part, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, and the other end of the airflow channel is communicated with the air outlet end;

or the shell of the motor is attached to or arranged in a gap with the inner cavity of the lower part, the interval between the shell of the motor and the rotor of the motor is used as an airflow channel, one end of the airflow channel is communicated with the wind wheel, the other end of the airflow channel is communicated with the air outlet end, the motor is provided with a support, the support covers the wind wheel to form an air suction chamber, the support is provided with an air inlet, the air inlet is used as an air inlet of an air suction unit, and the air suction chamber is communicated with the air outlet end through the airflow; the bracket is independently arranged or the second connecting piece is used as the bracket;

or in the above situation, the lower part is provided with the first mounting surface, the first mounting surface provides axial downward limiting, after the second connecting piece is sleeved with the lower part, the second connecting piece and the first mounting surface clamp and fix the air guide seat in the inner cavity of the lower part, or under the situation that the air guide seat is not provided, the second connecting piece and the first mounting surface clamp and fix the motor in the inner cavity of the lower part;

or, in the above case, a positioning connection structure is further provided between the bracket and the air guide seat, and the positioning connection structure adopts a matching structure of a first axial groove and a first axial protrusion which are arranged in the circumferential direction.

3. The split columnar mini dust collector with the higher joint strength according to claim 2, wherein the first connecting piece is in threaded connection and sleeve joint with the upper part, the air guide seat is in threaded connection and sleeve joint with the lower part, the second connecting piece is in axial buckling and sleeve joint with the lower part and is axially connected with the air guide seat, a positioning connecting structure is arranged between the second connecting piece and the air guide seat, and the positioning connecting structure adopts a matching structure of a first axial groove and a first axial bulge which are arranged in the circumferential direction; the first connecting piece is in rotary clamping connection with the second connecting piece or in threaded connection.

4. The split cylindrical mini dust collector with higher joint strength as claimed in claim 1,

the filter is provided with a circumferential installation part in the circumferential direction, the filter is sleeved with the first connecting piece and extends into the upper part, and after the first connecting piece is detachably connected with the second connecting piece, the circumferential installation part is abutted to the first connecting piece by the second connecting piece and is clamped and fixed by the first connecting piece and the second connecting piece;

or the opening part of the upper part is provided with a second mounting surface for supporting the first connecting piece, after the first connecting piece is sleeved with the upper part, the first connecting piece is limited by the second mounting surface in the axial direction, the circumferential mounting part is arranged in the circumferential direction of the filter, the filter is sleeved with the first connecting piece and extends into the upper part, after the first connecting piece is detachably connected with the second connecting piece, the circumferential mounting part is abutted in the first connecting piece by the second connecting piece, and the circumferential mounting part is in a state of being clamped and fixed by the first connecting piece and the second connecting piece;

or, in the above case, a positioning connection structure is further provided between the first connecting piece and the upper part, and the positioning connection structure adopts a matching structure of a second axial groove and a second axial protrusion which are arranged in the circumferential direction.

5. The split type columnar mini dust collector with the higher strength at the joint according to claim 2, 3 or 4, wherein the bracket is provided with an air guide part, a first sealing ring is arranged on the periphery of the air outlet of the filter, and the lower end surface of the first sealing ring is connected with the upper end surface of the air guide part in a sealing manner;

or the support is provided with an air guide part, the second connecting piece is used as the support, a first sealing ring is arranged on the periphery of the air outlet of the filter, the lower end face of the first sealing ring is hermetically connected with the upper end face of the air guide part, and after the first connecting piece is detachably connected with the second connecting piece, the peripheral installation part is abutted in the first connecting piece by the second connecting piece through the first sealing ring, and is clamped and fixed by the air guide part and the second connecting piece.

6. The split cylindrical mini dust collector with the higher connection strength as claimed in claim 5, wherein the air outlet of the filter is circumferentially provided with an annular blind hole with a downward opening, the bottom of the annular blind hole is provided with a plurality of circumferentially distributed fixing holes, the first sealing ring is sleeved with the annular blind hole, and the upper end surface of the first sealing ring is provided with a plurality of convex parts matched with the fixing holes.

7. The split type columnar mini dust collector with the higher strength at the joint according to claim 1, wherein the sealing connection between the air outlet side and the upper part of the filter means that a circumferential installation part is arranged on the circumference of the filter, a second sealing ring is arranged on the circumferential installation part, the filter is sleeved with the first connecting piece and extends into the upper part, after the first connecting piece is detachably connected with the second connecting piece, the circumferential installation part and the second sealing ring are connected with each other in an abutting mode through the second connecting piece in a sealing mode, and the circumferential installation part is in a state of being clamped and fixed through the first connecting piece and the second connecting piece in a sealing mode.

8. The split type columnar mini dust collector with the higher strength at the joint as claimed in claim 1, wherein the filter comprises a cover, a filter element and a seat, the cover, the filter element and the seat are connected in sequence, the seat is provided with an air outlet, and a circumferential installation part is arranged on the seat in the circumferential direction.

9. The split type columnar mini dust collector with the higher connection strength according to claim 2 or 3, wherein the air guide hole comprises a first guide surface, an inlet and a diffusion part which are arranged in sequence, the diffusion part is provided with a second guide surface, the first guide surface is used for guiding air flow in, and the second guide surface is used for guiding and discharging the air flow downwards; the air guide holes are distributed along the circumferential direction in a cyclone shape.

10. The split type columnar mini dust collector with the higher strength at the joint according to claim 1, wherein 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 mounting inner cavities; the upper part and the lower part are both made of metal pipe fittings.

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