CN213282724U - Dust collection unit assembly structure and handheld cleaning equipment - Google Patents

Abstract

The utility model discloses a dust collecting unit assembly structure and hand-held type cleaning equipment, including handheld portion, the dust collecting unit of induced draft unit and built-in filter unit, locked groove handheld portion is fixed with locked groove induced draft unit, the front end of locked groove handheld portion is equipped with the shaft-like part of straight line extension, dust collecting unit detachably installs in one side of shaft-like part and with fix the induced draft unit butt joint on handheld portion, be equipped with first location structure between dust collecting unit and the locked groove shaft-like part, be equipped with the second location structure between locked groove dust collecting unit and the induced draft unit; the advantage is that utilize two connection points of first location structure and second location structure to connect dust collecting unit detachably in clean host computer, and connection structure is more firm reliable.

Description

Dust collection unit assembly structure and handheld cleaning equipment

Technical Field

The utility model relates to a dust catcher technical field especially relates to a dust collecting unit assembly structure and hand-held type cleaning device.

Background

The hand-held vacuum cleaner is used for household cleaning due to the advantages of small volume, light total weight and convenient carrying and use.

A stick vacuum cleaner of application publication No. CN102440717A, comprising a rigid wand and a cleaning head at the end of the wand, the cleaning head being connected to the wand via a mechanical steering coupling for steering the cleaning head in a plane parallel to the floor as the wand is rotated about its axis.

An upright electric vacuum cleaner having a vacuum cleaner main body with an electric blower and a dust collecting mechanism, which is disclosed in publication No. CN 1806741A; a suction body arranged at the lower part of the cleaner main body; a handle arranged at the upper part of the cleaner main body; and an extension suction pipe which is provided at the front end of the suction hose extending from the cleaner body and is capable of extending and retracting.

The dust collecting box of the dust collector has a complex assembly structure and high production and manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a dust collecting unit assembly structure of simplified structure is provided, further provide a hand-held type cleaning device who has above-mentioned dust collecting unit assembly structure.

The utility model provides a technical scheme that above-mentioned technical problem provided does: dust collecting unit assembly structure is applied to among the hand-held type cleaning device, including handheld portion, the dust collecting unit who induced drafts unit and built-in filter unit, handheld portion with the unit of induced drafting fix, the front end of handheld portion be equipped with straight line extension's shaft-like part, dust collecting unit detachably install in one side of shaft-like part and with fix the unit butt joint that induced drafts in handheld portion, dust collecting unit with shaft-like part between be equipped with first location structure, dust collecting unit and induced draft be equipped with the second location structure between the unit.

The utility model discloses further preferred technical scheme does: the first positioning structure and the second positioning structure are of buckle type structures.

The utility model discloses further preferred technical scheme does: the second positioning structure is positioned on the lower surface of the rear end of the dust collection unit and the lower surface of the front end of the dust collection unit.

The utility model discloses further preferred technical scheme does: the second positioning structure comprises a hook hole positioned on the dust collecting unit and a hook part positioned on the dust collecting unit, and the hook hole hooks the hook part so that the dust collecting unit is connected with the dust collecting unit.

The utility model discloses further preferred technical scheme does: the first positioning structure is positioned on the upper surface of the front end of the dust collecting unit and the lower surface of the rod-shaped component.

The utility model discloses further preferred technical scheme does: the first positioning structure comprises a lock tongue positioned on the integrated unit and a lock groove positioned on the rod-shaped component, and the lock tongue extends into the lock groove so as to connect the dust collecting unit with the rod-shaped component.

The utility model discloses further preferred technical scheme does: the lock tongue is controlled by an operating button to extend into or out of the lock groove, and the operating button is positioned on the front end face of the dust collecting unit.

The utility model discloses further preferred technical scheme does: one side of the rod-shaped component is provided with a depressed area, the dust collecting unit is a cylindrical component, and a part of the peripheral side part of the cylindrical component is embedded in the depressed area.

The utility model discloses further preferred technical scheme does: one side of the rod-shaped component is provided with a first air outlet, the peripheral side wall of the dust collecting unit is provided with a second air inlet, and the first air outlet is in butt joint with the second air inlet; the rear end of the dust collection unit is provided with a second air outlet, the front end of the air suction unit is provided with a third air inlet, and the second air outlet is in butt joint with the third air inlet.

The utility model discloses a another protection topic does: the handheld cleaning equipment comprises the dust collecting unit assembling structure.

Compared with the prior art, the utility model has the advantages that dust collecting unit detachably install in one side of shaft-like part and with fix the unit butt joint that induced drafts on handheld portion, dust collecting unit with shaft-like part between be equipped with first location structure, dust collecting unit and induced draft and be equipped with second location structure between the unit, utilize two connection points of first location structure and second location structure to connect dust collecting unit detachably at clean host computer, and connection structure is more firm reliable.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a first schematic view of a hand-held cleaning device according to a preferred embodiment of the present invention;

FIG. 2 is a second schematic view of a hand-held cleaning device in accordance with a preferred embodiment of the present invention;

FIG. 3 is a third schematic view of a hand-held cleaning device in accordance with a preferred embodiment of the present invention;

FIG. 4 is an exploded view of a hand-held cleaning device in accordance with a preferred embodiment of the present invention;

fig. 5 is a first schematic view of a cleaning main unit according to a preferred embodiment of the present invention;

fig. 6 is a second schematic view of the cleaning main machine according to a preferred embodiment of the present invention;

fig. 7 is a cross-sectional view taken at a-a of fig. 6 in accordance with a preferred embodiment of the present invention;

fig. 8 is an exploded view of a cleaning main body according to a preferred embodiment of the present invention;

fig. 9 is a first exploded view of the cleaning main unit according to a preferred embodiment of the present invention;

fig. 10 is a second exploded view of the cleaning main body according to a preferred embodiment of the present invention;

FIG. 11 is a first schematic view of a dust collecting unit according to a preferred embodiment of the present invention;

FIG. 12 is a second schematic view of a dust collecting unit according to a preferred embodiment of the present invention;

fig. 13 is an exploded view of a dust collection unit according to a preferred embodiment of the present invention;

FIG. 14 is a schematic view of a barrel component of a preferred embodiment of the present invention;

fig. 15 is a first schematic view of a filter unit according to a preferred embodiment of the present invention;

FIG. 16 is a second schematic view of a filtration unit in accordance with a preferred embodiment of the present invention;

fig. 17 is a third schematic view of a filter unit according to a preferred embodiment of the present invention;

fig. 18 is an exploded view of a filter unit according to a preferred embodiment of the present invention;

fig. 19 is a schematic view of a fixing frame according to a preferred embodiment of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is illustrative only, and is not to be construed as limiting the scope of the invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 4, the handheld cleaning device includes a floor brush 100, a rigid suction rod 200, and a cleaning main body 300. The lower end of the rigid suction rod 200 is connected with the floor brush 100, and the upper end is connected with the cleaning main unit 300. The cleaning main body 300 includes a hand-held portion 001, an air suction unit 002 with a built-in fan 02, and a dust collection unit 003 with a built-in filter unit 01, wherein a rod-shaped member 004 abutting against the upper end of the rigid suction rod 200 is provided at the front end of the hand-held portion 001, and the dust collection unit 003 is detachably mounted on one side of the rod-shaped member 004 and abuts against the air suction unit 002 fixed on the hand-held portion 001.

As shown in fig. 4, an air inlet K is provided on the lower surface of the floor brush 100, an air inlet channel is provided inside the floor brush 100, and the air inlet channel is communicated with the dust suction channel T of the inner cavity of the rigid suction rod 200. And the other end of the dust suction passage T of the rigid suction rod 200 is communicated with the first air inlet 1 of the rod-shaped component 004.

When in use, dust and impurities on the ground surface can be sucked into the floor brush 100 from the air inlet K along with air, and are upwards drawn into the cleaning main machine 300 by the air flow. The dust-containing air is dedusted by the cleaning main unit 300 to form clean air, and then is exhausted back to the atmosphere, and dust and impurities are retained in the dust collecting unit 003 of the cleaning main unit 300.

In the embodiment, the floor brush 100 is detachably sleeved on the rigid suction rod 200 by a screw thread, a buckle, etc., and the floor brush 100 can be used for cleaning objects such as a soleplate, a carpet, etc. In addition, the floor brush 100 can be removed from the lower end of the rigid suction rod 200, and the rigid suction rod 200 and the cleaning main body 300 are combined to form a handheld cleaning apparatus for long-distance dust suction, and dust-containing air enters from the front end of the dust suction passage T of the rigid suction rod 200. This mode can be used to clean dust in dead corners, gaps, etc.

Of course, other cleaning heads can be disposed at the front end of the rigid suction rod 200 to perform other functions. Of course, the floor brush 100 may be permanently fixed to the front end of the rigid suction rod 200.

Further, the rigid suction rod 200 is detachably sleeved at the front end of the rod-shaped part 004, the cleaning main machine 300 can be independently used as an independent part to suck dust by detaching the rigid suction rod 200, and various cleaning heads including the floor brush 100 can also be directly connected with the rod-shaped part 004, so that a short-distance cleaning mode is realized, and the use convenience and flexibility of the handheld cleaning equipment are improved.

As shown in fig. 5, in the present embodiment, a rod-shaped member 004 extending linearly is provided at the front end of the hand-held part 001, and a dust collection unit 003 is detachably attached to one side of the rod-shaped member 004 and abuts against a suction unit 002 fixed to the hand-held part 001. This kind of connected mode makes cleaning device's structure simpler, and the dismantlement installation of the dust collection unit 003 of being convenient for has not only reduced manufacturing cost, has further improved cleaning device's use convenience.

As shown in fig. 5 and 6, preferably, the upper surface of the joint of the rod-shaped member 004 and the handheld portion 001 is provided with a switch D for controlling the fan, so that when a user holds the handheld cleaning device with one hand, the thumb can press the switch D to realize control while cleaning, and therefore the operation is more convenient and easier, and the experience feeling is better. Further, it is preferable that a rear side surface of the suction unit is provided with a power line C.

As shown in fig. 7-10, the front end of the rod-shaped member 004 is provided with a first air inlet 1, the inner side of the rod-shaped member 004 is provided with a first air outlet 2, and the rod-shaped member 004 is hollow to form a linear air duct Z.

As shown in fig. 8-10 and 15, the dust collection unit 003 includes a cylindrical member 04, a filter unit 01, a second air inlet 3 and a second air outlet 4, and the filter unit 01 includes a filter assembly 011 located in the cylindrical member 04 and forming a dust collection duct between the second air inlet 3 and the second air outlet 4 on an air flow path between the second air inlet 3 and the second air outlet 4. The second air inlet 3 is arranged on the peripheral side wall of the cylindrical part 04, the second air outlet 4 is arranged at the rear end of the cylindrical part 04, and the first air outlet 2 is in butt joint with the second air inlet 3.

As shown in fig. 8-10, the air suction unit 002 includes a housing 03, a fan 02 disposed in the housing 03, a third air inlet 5 disposed at the front end of the housing 03, and a third air outlet 6 disposed at the rear end of the housing 03, wherein the third air inlet 5 and the third air outlet 6 form an air suction duct L, and the second air outlet 4 is in butt joint with the third air inlet 5.

Preferably, the third air inlet 5 is disposed on a front end surface F1 of the housing 03, the front end surface F1 being perpendicular to the extending direction of the rigid suction rod 200, and the third air outlet 6 is disposed on a lower end portion of the housing 03, so that the air suction duct L between the third air inlet 5 and the third air outlet 6 is curved. This prevents the air blown out from the air suction unit 002 from being directed to the user, so that the comfort of the apparatus is improved and the noise of the apparatus is reduced.

In summary, as shown in fig. 7, an air duct structure of the handheld cleaning device provided in this embodiment is formed between the first air inlet 1 and the third air outlet 6. When the handheld cleaning device works, the fan 02 operates to enable the dust suction channel T (in the rigid suction rod), the linear air channel Z and the dust collection air channel in front of the fan to generate negative pressure to generate suction force, air containing dust or foreign matters is sucked from the dust suction channel T and filtered by the filtering unit 01 in the dust collection unit 003, the dust and the foreign matters are concentrated in the cylindrical part 04, and the purified air is discharged from the third air outlet 6 through the air suction air channel L after passing through the fan 02.

In this embodiment, the air that includes dust or foreign matter gets into from linear type wind channel Z, get into dust collecting unit 003 after the turn in, the dust of partly great particle size or foreign matter are blockked by linear type wind channel Z's rear end, reduced the flow velocity and by near the deposit in first air outlet 2 and 3 butt joints of second air intake, it is big to avoid the direct throw of large granule dust to filter unit 01 to lead to filter unit 01 filtration load, prevent that the problem that the filter screen surface is occupied by the dirt bits from producing, reduce the whole air current resistance in wind channel, the convulsions efficiency of fan 02 is improved.

As shown in fig. 7 and 16, a slope 21 and a curved surface 22 are further provided in the dust collecting air duct to be abutted against the second air inlet 3, and the slope 21 and the curved surface 22 form a rotary air duct inside the dust collecting unit 003. The air entering the cylindrical member 04 is guided by the inclined surface 21 and the arc surface 22, and circularly flows along the inside of the cylindrical member 04 and enters the filter unit 01.

As shown in fig. 8 and 13, preferably, the first outlet 2 is provided with a first annular sealing member X2 around it, and the edge of the second inlet 3 of the dust collecting unit 003 is provided with a first annular protrusion which abuts against the first annular sealing member X2 to seal the pair of ports.

A second annular sealing element X1 is arranged around the third air inlet 5, a second annular bulge is arranged on the edge of the second air outlet 4 of the dust collection unit 003, and the second annular bulge is fixed on the second annular sealing element X1 to seal the pair of the openings. Through two sealing measures, the air tightness of the air duct structure is enhanced, the wind power loss is reduced, and the dust collection effect of the equipment is enhanced.

As shown in fig. 5, as an embodiment of the hand-held portion 001, in this embodiment, the hand-held portion 001 includes a first handle portion 11 and a second handle portion 12, the first handle portion 11 is located in a rear extending direction of the rigid suction rod 200, the second handle portion 12 forms an acute angle with the first handle portion 11, a connection portion 13 is disposed between a front end of the first handle portion 11 and a lower end of the second handle portion 12, and the first handle portion 11, the second handle portion 12 and the connection portion 13 form a triangular region with a hollow center. The triangular handheld part 001 structure enables the gravity center of the device to be close to a user, so that the user can use the device more easily and conveniently.

Preferably, the upper side of the housing 03 of the air suction unit 002 is fixed to the front end extension of the first handle knob 11, and the rear side of the housing 03 of the air suction unit 002 is integrally formed with the coupling portion 13. Therefore, the equipment structure is more compact, the appearance is more attractive, and meanwhile, the gravity center of the equipment is further closer to a user.

The assembly structure of the dust collection unit 003 on the cleaning main body 300 will be specifically described below with reference to fig. 9 to 10, so that those skilled in the art can more clearly understand the implementation manner of the present embodiment.

A first positioning structure is arranged between the dust collecting unit 003 and the rod-shaped part 004, and a second positioning structure is arranged between the dust collecting unit 003 and the air suction unit 002. The dust collection unit 003 is detachably mounted to one side of the rod-shaped member 004 and is butted against the suction unit 002 fixed to the hand-held part 001. The first positioning structure and the second positioning structure are of buckle type structures.

Specifically, as shown in fig. 9 to 10, the first positioning structure is located on the upper surface of the front end of the dust collection unit 003 and the lower surface of the rod-like member 004. The dust collection device comprises a lock tongue 7 positioned on a dust collection unit 003 and a lock groove 8 positioned on a rod-shaped component 004, wherein the lock tongue 7 is controlled by an operating button P to extend into or out of the lock groove 8, and the operating button P is positioned on the front end face of the dust collection unit 003. When the dust collecting unit 003 is fitted to the rod member 004, the latch 7 is displaced away from the latch groove 8 by pressing the operating button P, so that the dust collecting unit 003 and the rod member 004 can be unlocked and detached from each other. When the user releases the operating button P, the latch 7 is moved to extend into the latch groove 8, and the dust collection unit 003 is locked with the rod member 004, so that the dust collection unit 003 is connected with the rod member 004.

And, as shown in fig. 9-10, the second positioning structure is located at the lower surface of the rear end of the dust collection unit 003 and the lower surface of the front end of the suction unit. It includes hook hole 9 that is located dust collection unit 003 and the hook portion 10 that is located the unit that induced drafts, and hook hole 9 catches on hook portion 10 to make dust collection unit 003 link to each other with the unit 002 that induced drafts. I.e. the first and second locating formations are located on either side of the tubular member 04.

When the user assembles the dust collection unit 003, the user first couples the second positioning structures to each other, i.e., aligns the hook 10 with the hook hole 9, and hooks the hook hole 9 to the hook 10, so that the dust collection unit 003 is connected to the air suction unit 002; then, the operating button P is pressed to compress the bolt 7, and the dust collecting unit 003 is arranged in place; finally, the operating button P is released, and the latch tongue 7 moves to extend into the locking groove 8, so that the dust collection unit 003 is locked with the rod-shaped member 004, and the dust collection unit 003 is connected with the rod-shaped member 004. So that the dust collection unit 003 is firmly and reliably attached to the cleaning main body 300 by means of the two attachment points.

Preferably, in order to further ensure the positioning accuracy and improve the transverse connection strength between the dust collecting unit 003 and the rod-shaped member, a third positioning structure is further disposed behind the first positioning structure, and includes a plug-in piece 14 located on the lower surface of the rod-shaped member and an insertion hole 15 located on the upper surface of the cylindrical member 04 of the dust collecting unit 003, and the plug-in piece 14 is inserted into the insertion hole 15 to realize a third positioning protection.

As shown in fig. 9, it is more preferable that the rod-like member 004 has a recessed area 16 on the lower surface thereof, the first outlet 2 is located in the recessed area 16, and the upper portion of the peripheral side portion of the cylindrical member 04 is fitted in the recessed area 16. The recessed area 16 accommodates the dust collecting unit 003 therein, which not only makes the structure compact and the appearance neat and beautiful, but also supports the dust collecting unit 003 and improves the stability of connection. Preferably, the upper surface of the cylindrical part 04 is a planar structure matching the recessed area 16.

The specific structure of the dust collecting unit 003 itself in the present embodiment will be further described below with reference to fig. 11 to 19.

As described above, as shown in fig. 13, the dust collecting unit 003 includes the filter unit 01 and the cylindrical member 04 for collecting the garbage. Further, the filter unit 01 includes a fixing frame 012 and a filter component 011, the filter component 011 is assembled on the fixing frame 012, the rear end of the tubular component 04 is opened, the filter unit 01 is integrally plugged into the inner cavity of the tubular component 04 with the filter component 011 facing inwards, the outer wall of the fixing frame 012 is clamped on the inner wall of the opened end of the tubular component 04, and therefore the fixing frame 012 can be installed in the rear cavity of the tubular component 04 in a plugging manner.

As shown in fig. 7 and 12, the fixing frame 012 has a through hole N at the center thereof, and the air outlet of the filter assembly 011 is connected to the through hole N. The through hole N is opposed to the third air intake port 5 of the air suction unit 002. Therefore, the inlets of the air draft air channel and the air draft air channel are positioned on the same straight line, so that the air resistance is reduced, the air flow is ensured to be smooth, the loss of negative pressure suction in the conduction process is reduced, and the dust collection capacity of the equipment is improved.

In addition, a handle portion 06 is provided in an inner hole of the holder 012, and the handle portion 06 is used to separate the filter unit 01 from the cylindrical member 04.

As shown in fig. 19, the fixing frame 012 includes a first annular body 101 and a second annular body 102 which are adjacent to each other in a front-rear direction and located on the same axis, an outer diameter of the first annular body 101 is larger than an outer diameter of the second annular body 102, the first annular body 101 is configured to be connected to an inner wall of the cylindrical member 04 of the dust collecting unit 003, and the second annular body 102 is detachably connected to the filter assembly 011.

Preferably, the first annular body 101 and the second annular body 102 are both annular bodies, and the first annular body 101 and the second annular body 102 are integrally injection-molded.

As shown in fig. 9, it is further preferable that the inclined surface 21 and the arc surface 22, which are abutted to the second air inlet 3 in the dust collection duct, are disposed on the fixing frame 012. Wherein the inclined plane 21 abutting against the second air inlet 3 is an excessive inclined plane 21 between the outer wall of the first annular body 101 and the outer wall of the second annular body 102. While the cambered surface 22 refers to the outer surface of the second annular body 102.

And, a spiral coupling body 103 is provided between the first annular body 101 and the second annular body 102, and a spiral air duct is formed between the outer surface of the spiral coupling body 103, the outer surface of the second annular body 102, and the inner surface of the cylindrical member 04.

Thus, the air flow entering the second air inlet 3 is guided by the transition inclined surface 21, and enters the cylindrical part 04 along the tangential direction of the cylindrical part 04, and the air entering the dust collecting unit 003 flows along the spiral air channel in the direction close to the air suction unit 002. Such setting has not only increased the area of contact of air with filtering component 011 for the air inlet effect is better, avoids dusty air direct relative with filtering component 011's filter screen 105 moreover, avoids the filter screen surface to be occupied by the dirt bits, and such setting can also the noise reduction in addition.

As shown in fig. 14 to 16, it is preferable that the outer surface of the first annular body 101 is provided with a positioning structure for abutting against the inner wall of the open end of the cylindrical member 04 of the dust collecting unit 003. The positioning structure specifically refers to a concave portion 17 on the outer wall of the first annular body 101 and a convex portion 18 on the inner wall of the open end of the cylindrical part 04, which is matched with the concave portion 17. When the protruding portion 18 is inserted into the recessed portion 17 in a fitting manner, the holder 012 and the cylindrical part 04 are precisely positioned, and the inclined surface on the holder 012 is just opposite to the second air inlet 3.

As shown in fig. 18, the filter assembly 011 preferably includes an inner filtering hpa 104 and an outer metal filter screen 105, the outer metal filter screen 105 being sleeved outside the inner filtering hpa 104 and being separable from each other.

In addition, the outer metal filter screen 105 includes a cylindrical plastic support 105a and a metal screen 105b disposed on the cylindrical plastic support 105a, and a rotary buckle structure is provided between the cylindrical plastic and the second annular body 102 so that the filter assembly 011 is mounted on the fixing frame 012.

As shown in fig. 11 to 13, it is further preferable that the dust collecting unit 003 is provided at its front end with an openable lid 05 for dumping the garbage in the cylindrical member 04 when the lid 05 is opened, and a third annular seal X3 is provided between the lid 05 and the cylindrical member.

One end of the cover body 05 is coupled to the cylindrical member 04, and the other end of the cover body 05 is provided with a detachable fastening structure. The buckle structure is arranged on the outer wall of the cylindrical part 04 on the same side as the second positioning structure, and the shaft end of the cover body 05 is on the same side as the bolt 7 controlled by the operating button.

It is right above the utility model provides a dust collecting unit assembly structure and hand-held type cleaning device have carried out detailed introduction, and it is right to have used specific individual example herein the utility model discloses a principle and implementation mode have been explained, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. Dust collecting unit assembly structure is applied to among the hand-held type cleaning device, and its characterized in that includes handheld portion, the dust collecting unit who induced drafts unit and built-in filter unit, handheld portion with induced drafts the unit fixed, the front end of handheld portion be equipped with straight line extension's shaft-like part, dust collecting unit detachably install in one side of shaft-like part and with fix the unit butt joint that induced drafts on handheld portion, dust collecting unit with shaft-like part between be equipped with first location structure, dust collecting unit and induced draft be equipped with the second location structure between the unit.

2. The dust collection unit mounting structure of claim 1, wherein the first and second positioning structures are snap-fit structures.

3. The dust collecting unit assembling structure of claim 1, wherein said second positioning structure is located at a lower surface of a rear end of the dust collecting unit and a lower surface of a front end of the dust suction unit.

4. The assembly structure of claim 3, wherein the second positioning structure comprises a hook hole formed on the dust collecting unit and a hook formed on the dust suction unit, and the hook hole hooks the hook so that the dust collecting unit is connected to the dust suction unit.

5. The dust collecting unit assembling structure of claim 1, wherein the first positioning structure is formed on an upper surface of the front end of the dust collecting unit and a lower surface of the rod member.

6. The dust collection unit assembly of claim 5, wherein the first positioning structure comprises a locking tongue on the integrated unit and a locking groove on the rod member, the locking tongue extending into the locking groove to connect the dust collection unit to the rod member.

7. The assembly structure of claim 6, wherein the latch is controlled by an operating button to extend into or out of the latch slot, the operating button being located on a front face of the dust collection unit.

8. The dust collecting unit assembling structure of claim 1, wherein a recessed area is provided on one side of said rod-like member, said dust collecting unit is a cylindrical member, and a part of a peripheral side portion of said cylindrical member is fitted in said recessed area.

9. The dust collecting unit assembling structure of claim 1, wherein the rod-shaped member has a first air outlet at one side thereof, and a second air inlet at a peripheral sidewall thereof, the first air outlet being in abutment with the second air inlet; the rear end of the dust collection unit is provided with a second air outlet, the front end of the air suction unit is provided with a third air inlet, and the second air outlet is in butt joint with the third air inlet.

10. A hand-held cleaning appliance characterised by comprising a dust collecting unit mounting structure according to any one of claims 1-9.

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