CN216167175U - Hand-held vacuum cleaner - Google Patents

Abstract

The utility model discloses a hand-held vacuum cleaner, which comprises a cyclone separation main body, a cyclone separator and a dust collection cylinder, wherein one end of the inlet pipeline penetrates through the first end part of the dust collection cylinder; when the dust collecting cylinder is in a detachable state, dirt is poured out from one side of the second end part of the dust collecting cylinder. The utility model relates to a handheld vacuum cleaner, which is characterized in that a dust collecting cylinder is designed to be integrally moved in and out along the axis of a separator so as to be selectively assembled on or disassembled from an inlet pipeline or the separator; when the dust collecting cylinder is in a detachable state, dirt is poured out from the second end part of the dust collecting cylinder, so that the dust collecting cylinder is convenient to disassemble and assemble, the complicated mechanical structure design for pushing the end wall of the dust collecting cylinder is reduced, the cost and the maintenance cost are reduced, and meanwhile, the structure is simplified, the manufacture is convenient, and the replacement is also facilitated; the discharged dust collecting barrel can directly and quickly dump out the particle dirt in the dust collecting barrel.

Description

Hand-held vacuum cleaner

Technical Field

The utility model relates to the technical field of cyclone separation, in particular to a handheld vacuum cleaner.

Background

When the existing hand-held dust collector pours dirt, a bottom cover arranged on a dust collecting barrel is pushed open generally, an inlet pipeline passes through a central hole of the bottom cover when the bottom cover is not opened and forms a dirt collecting cavity with the barrel wall of the dust collecting barrel, and the bottom cover pivots relative to the barrel wall of the dust collecting barrel to open the bottom cover when the bottom cover is opened, but in the specific implementation, a complex mechanical structure for pushing the bottom cover to open needs to be arranged, so that the structure is complex, and the manufacturing cost and the maintenance cost are high; moreover, most of the structure of the dust collecting cylinder is fixed on the main body of the dust collector, the bottom cover can only pivot, when dirt needs to be poured, the whole dust collector is communicated with the dust collecting cylinder and is taken to the garbage can, and the dirt can be poured, so that some dirt remained on the wall of the dust collecting cylinder after being poured is not good for cleaning.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a hand-held vacuum cleaner.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a hand-held vacuum cleaner comprising a cyclonic separating body having an inlet duct, a separator and a dust collecting cartridge, one end of the inlet duct passing through a first end of the dust collecting cartridge, the dust collecting cartridge passing in and out along the axis of the separator for selective mounting on or dismounting from the inlet duct or the separator; when the dust collecting barrel is in a detachable state, dirt is poured out from one side of the second end part of the dust collecting barrel.

As a preferred embodiment of the handheld vacuum cleaner provided by the present invention, the separator includes a primary separation assembly and a secondary separation assembly, the primary cyclone chamber of the primary separation assembly is communicated with the inlet duct; the secondary separation assembly is located downstream of the primary separation assembly.

As a preferred embodiment of the handheld vacuum cleaner provided by the present invention, the dust collecting barrel includes a barrel wall, a first dirt chamber disposed in the first end portion, and a second dirt chamber disposed in the second end portion, when the dust collecting barrel is in an assembled state, the first dirt chamber corresponds to the primary dust discharge opening of the primary cyclone chamber, and the second dirt chamber corresponds to the secondary dust discharge opening of the secondary separating assembly.

In a preferred embodiment of the hand-held vacuum cleaner of the present invention, the first dirt chamber and the second dirt chamber are spaced apart along the axis of the separator.

In a preferred embodiment of the hand-held vacuum cleaner of the present invention, the cylinder wall is integrally formed with the first dirt chamber.

As a preferred embodiment of the hand-held vacuum cleaner provided by the present invention, the inlet duct includes a connection pipe, a middle pipe, and a downward spiral pipe, which are sequentially communicated; the connecting pipe is arranged in the dust collecting cylinder in a penetrating way, and part of the connecting pipe protrudes to be used for sucking dirty air; the downward spiral pipe is used for downwards spirally leading the dirty air sucked from the connecting pipe into the primary cyclone chamber.

As a preferred embodiment of the handheld vacuum cleaner provided by the present invention, a cleaning opening is further formed at a side edge of the downward spiral pipe, and is used for cleaning dirt in the downward spiral pipe.

As a preferred embodiment of the handheld vacuum cleaner provided by the present invention, the secondary separation assembly includes a plurality of cyclone units disposed around the axis of the separation chamber, each cyclone unit includes a tangential air inlet duct, a separation cylinder, and an overflow cylinder disposed in the separation cylinder and coaxial therewith, the tangential air inlet duct communicates with the separation cylinder; the outer wall of the overflow cylinder is provided with a spiral groove, and the helix angle of the spiral groove is larger than the half cone angle of the inverted cone.

As a preferred embodiment of the hand-held vacuum cleaner provided by the present invention, the hand-held vacuum cleaner further comprises a handle and a suction generator; the cyclone separation device comprises a handle, a cyclone separation main body and a suction generator, wherein the cyclone separation main body and the suction generator are connected and supported on two sides of the handle respectively, the suction generator is located on the upper rear portion of the handle, and the cyclone separation main body is located on the upper front portion of the handle.

In a preferred embodiment of the hand-held vacuum cleaner provided by the present invention, the handle is provided at a bottom thereof with a power source for supplying power to the suction power means.

In a preferred embodiment of the present invention, the handle is further provided with an on-off switch, the first pressing is to start the suction generator to start operation, and the second pressing is to turn off the suction generator to stop operation, i.e. the vacuum cleaner is not operated in a continuously pressed state.

The utility model has the following beneficial effects:

the handheld vacuum cleaner is characterized in that the dust collecting cylinder is integrally designed to enter and exit along the axis of the separator so as to be selectively assembled on or disassembled from the inlet pipeline or the separator, so that the whole dust collecting cylinder is convenient to disassemble for dumping dirt, and the dust collecting cylinder is also beneficial to cleaning more simply and quickly; when the dust collecting cylinder is in a detachable state, dirt is poured out from the second end part side of the dust collecting cylinder, so that the dust collecting cylinder is convenient to disassemble and assemble, the complicated mechanical structure design for pushing the end part wall of the dust collecting cylinder is reduced, the cost and the maintenance cost are reduced, the structure is simplified, the manufacture is convenient, and the replacement is also facilitated; the discharged dust collecting barrel can directly and quickly dump out the particle dirt in the dust collecting barrel.

Drawings

FIG. 1 is a schematic view of a hand-held vacuum cleaner according to the present invention;

FIG. 2 is a schematic view of the dust collecting tube of the hand-held vacuum cleaner of the present invention;

FIG. 3 is an exploded view of the cyclonic separating body of the hand-held vacuum cleaner of the present invention;

FIG. 4 is a schematic structural view of a cyclone separating main body of the hand-held vacuum cleaner of the present invention, in which a dust collecting container and a lower spiral pipe are partially shown in section;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is a cut-away perspective view of a cyclonic separating body of the hand-held vacuum cleaner of the present invention;

FIG. 7 is a schematic cross-sectional view of the two-stage separation assembly of the hand-held vacuum cleaner of the present invention with the overflow cartridge not shown in cross-section;

FIG. 8 is a cut-away perspective view of a cyclone unit in a secondary separation assembly of the present invention with a cylindrical drum and an inverted cone partially cut away.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, a hand-held vacuum cleaner includes a handle 1, a cyclone main body 2, and a suction generator 3; the cyclone separation device is characterized in that the two sides of the handle 1 are respectively connected and supported with the cyclone separation main body 2 and the suction generator 3, the suction generator 3 is positioned at the upper rear part of the handle 1, and the cyclone separation main body 2 is positioned at the upper front part of the handle 1. The bottom of the handle 1 is provided with a power supply 11 for supplying power to the suction power device. Further, the handle 1 is further provided with an on-off switch 12, wherein the first pressing is to start the suction generator 3 to start working, and the second pressing is to turn off the suction generator 3 to stop working, i.e. the vacuum cleaner is not operated in a continuously pressed state.

The cyclone separation body 2 is provided with an inlet pipeline 21, a separator 22 and a dust collecting cylinder 23, one end of the inlet pipeline 21 passes through a first end part 231 of the dust collecting cylinder 23, and the dust collecting cylinder 23 enters and exits along an axis 221 of the separator 22 so as to be selectively assembled on or disassembled from the inlet pipeline 21 or the separator 22; when the dust collecting cylinder 23 is in a detachable state, dirt is dumped from the side of the second end 232 of the dust collecting cylinder 23. By the design, the dust collecting cylinder 23 is convenient to disassemble and assemble, the complicated mechanical structure design for pushing the end wall of the dust collecting cylinder 23 is reduced, the cost and the maintenance cost are reduced, and meanwhile, the structure is simplified, the manufacture is convenient, and the replacement is also facilitated; the discharged dust collecting barrel 23 can directly and rapidly dump the particle dirt in the dust collecting barrel 23.

As shown in fig. 2, 4 and 6, the dust collecting barrel 23 includes a barrel wall 233, a first dirt chamber 234 disposed in the first end 231, and a second dirt chamber 235 disposed in the second end 232, when the dust collecting barrel 23 is in an assembled state, the first dirt chamber 234 corresponds to the primary dust discharge opening of the primary cyclone chamber 2222, and is used for collecting large-particle dirt separated by the primary cyclone; the second dirt chamber 235 corresponds to a secondary dirt discharge port of the secondary separating assembly 223 and is used for collecting fine particulate dirt separated by secondary cyclone.

The second end 232 of the dust collecting cylinder 23 is disposed in an open state to be in sealing abutment with the lower portion of the secondary separating assembly 223. In some embodiments, the first dirt chamber 234 and/or the second dirt chamber 235 can be detachably connected to the dust collecting barrel 23, so as to facilitate disassembly, cleaning, replacement and maintenance; in other embodiments, the first dirt chamber 234 and/or the second dirt chamber 235 are integrally formed in the dust collecting barrel 23, i.e., the dust collecting barrel may be an integral or partially integral member. Preferably, but not limited to, in the present embodiment, the first dirt chamber 234 is integrally formed on the dust collecting barrel 23, and the second dirt chamber 235 is hung on the upper end edge of the barrel wall 233 by a hanging manner, for example, by providing an outer hook on the top of the outer wall of the second dirt chamber 235 to facilitate hanging; the cylinder wall 233 can be further locked by screws to further enhance the stability of the connection between the two. In order to improve the sealing effect, a sealing ring is additionally arranged at the contact area of the outer wall of the second dirt chamber 235 and the cylinder wall 233.

The first dirt chamber 234 and the second dirt chamber 235 are arranged at intervals along the axis 221 of the separator 22, that is, the first dirt chamber 234 is not designed to surround the second dirt chamber 235, so that the two dirt chambers are not interfered with each other, the second dirt chamber 235 which is short and wide can be provided, secondary dirt can be collected conveniently, secondary dirt can be cleaned quickly, and the problems that a secondary dust collecting chamber formed between a primary dust collecting chamber and the inlet pipeline 21 in the existing push-cover type dust cup structure is long and narrow, the outlet width of the secondary dust collecting chamber is narrower, and the secondary dust collecting chamber is difficult to clean effectively are solved.

The cylindrical wall 233 is integrally formed with the first dirt chamber 234 for ease of manufacture and cost reduction.

The dust collecting cylinder 23 may be connected to the inlet duct 21 or the fixed housing 2231 of the secondary separating assembly 223 by a detachable structure such as a snap structure 24, a screw structure, or a rotary structure. In order to further improve the sealing effect, sealing rings are additionally arranged at the contact areas of the first end 231 and the second end 232 of the dust collecting cylinder 23 with the inlet pipeline 21 and the fixed shell 2231. The following is an example of a rotating buckle, but it is not limited thereto. As shown in fig. 4 and 5, the rotating buckle includes a buckle 241, a slot 242 matching with the buckle 241, and a sliding slot 243 for the buckle 241 to slide in and out, the slot 242 is disposed at a side of the sliding slot 243, so that when the buckle 241 slides in place along the sliding slot 243, the rotating buckle rotates into the slot 242 to realize locking and blocking. The buckle 241 may be selectively disposed on the dust collecting tube 23, the inlet duct 21 or the fixing housing 2231, and correspondingly, the engaging groove 242 and the sliding groove 243 are disposed on the corresponding structures. In this embodiment, the fastening member 241 is disposed outside the wall of the primary dirt chamber of the dust collecting container 23, and the fastening groove 242 and the sliding groove 243 are disposed outside the wall of the inlet duct 21. With such design, when the dust collecting cylinder 23 is assembled, after the dust collecting cylinder 23 is sleeved in the inlet pipeline 21, the buckle 241 slides to the top along the chute 243 and then rotates to rotate the buckle 241 into the clamping groove 242 to complete the installation and locking of the dust collecting cylinder 23, and at this time, the second end 232 of the dust collecting cylinder 23 abuts against the fixed shell 2231; when the dust collecting cylinder 23 is disassembled, the buckle 241 is rotated reversely to rotate out of the clamping groove 242, and then slides out along the sliding groove 243, so that the dust collecting cylinder 23 is disassembled.

A concave-convex structure is arranged on the phase region of the access path of the buckle 241 relative to the card slot 242, wherein the concave part 245 of the concave-convex structure is preferably arranged on the card slot 242, and the convex part 244 is correspondingly arranged on the buckle 241, it can be understood that the concave part 245 and the convex part 244 can also be respectively arranged on the buckle 241 and the card slot 242. Due to the design, the concave-convex structure can be used as an in-place reminder in the assembling process, and can also play a role in preventing the problem that the buckle 241 is automatically rotated out of the clamping groove 242 in the using process and the problem that the rotary torque with certain strength is needed during dust collection, so that the connection firmness of the dust collection barrel 23 is improved, and the safety accident caused by loosening or separation is avoided.

The inlet pipeline 21 comprises a connecting pipe 211, a middle pipe 212 and a downward spiral pipe 213 which are communicated in sequence; the connecting tube 211 is arranged in the dust collecting cylinder 23 in a penetrating way and is partially protruded for sucking dirty air; the spiral inlet 2132 of the spiral passage in the spiral-down coil 213 is communicated with the top of the middle pipe 212, and is used for downwards screwing the dirty air sucked from the connection pipe 211 into the primary cyclone chamber 2222. The spiral outlet 2131 of the spiral passage is located above the primary cyclone chamber 2222, so that the dirty air before entering the primary cyclone chamber 2222 rotates in the downward spiral pipe 213, and compared with the middle pipe 212, the rotation speed of the dirty air after directly turning to enter the primary cyclone chamber 2222 is higher, the separation effect is better, and the downward moving speed is better promoted, so as to push the separated large-particle dirt to fall into the first dirt chamber 234 as soon as possible. It will be appreciated that the helical downstrole tube 213 is about one lead, i.e., approximately one lead, or more than one lead.

In order to increase the compactness of the structure, the second dirt chamber 235 is annularly arranged outside the spiral pipe 213.

As shown in fig. 2 and 3, the downward spiral tube 213 is further provided with a cleaning opening 214 corresponding to the spiral passage, and the cleaning opening is used for cleaning dirt in the spiral passage. Preferably, but not limitatively, the cleaning port 214 is located at the side of the helical inlet 2132 or an extended area thereof. So design, not dismantling under the condition of spiral pipe 213 of spiraling down, can pass through clean mouthful 214 carries out quick effective cleaning to the spiral passage in the spiral pipe 213 of spiraling down, blocks or blocks up and influence the air inlet effect when avoiding the foul switching-over to get into spiral passage, and especially there is the possibility of blocking or blocking up at the groove periphery of switching-over more. It should be noted that, in the specific use process, as shown in fig. 2, the dust collecting barrel 23 of the vacuum cleaner is entirely detachable, that is, the dust collecting barrel 23 can be entirely detached from the vacuum cleaner to pour dirt and then be assembled into the vacuum cleaner, and when the dust collecting barrel 23 is assembled into the vacuum cleaner, the second dirt chamber 235 is located right outside the spiral downward pipe 213, so that the cleaning opening 214 can be closed by the second dirt chamber 235 without additionally adding a sealing plate on the cleaning opening 214; when the dust collecting cylinder 23 is detached from the vacuum cleaner, the cleaning opening 214 is exposed, which is also convenient for cleaning.

Referring to fig. 3, 4, 6 and 7, the separator 22 includes a primary separation assembly 222 and a secondary separation assembly 223, the primary cyclone chamber 2222 of the primary separation assembly 222 is communicated with the inlet duct 21; the secondary separation assembly 223 is located downstream of the primary separation assembly 222.

The primary separation assembly 222 includes an inner cylinder 2221 sleeved on the middle tube 212, a primary cyclone chamber 2222 is defined between the inner cylinder 2221 and the cylinder wall 233, a primary air outlet 2223 is further formed on the wall of the inner cylinder 2221, the primary air outlet 2223 is formed by forming a large hole 2224 on the inner cylinder 2221 and additionally arranging a filter screen 2225 on the large hole 2224. The first dirt chamber 234 is located below the primary cyclone chamber 2222, the downward-turning spiral pipe 213 is located above the primary cyclone chamber 2222, that is, the spiral outlet 2131 of the downward-turning spiral pipe 213 is located above the primary cyclone chamber 2222, so that the dirty air enters from the connection pipe 211 and then spirally rotates downwards through the downward-turning spiral pipe 213 to enter the primary cyclone chamber 2222 for separation, the separated large particle dirt falls into the first dirt chamber 234 along the cylinder wall 233, and the separated air is discharged from the primary air outlet 2223. A skirt portion 2226 connected to the circumference of the inner cylinder 2221 is provided at a lower side of the primary air outlet 2223 to prevent dirt falling into the first dirt chamber 234 from flowing back to the primary cyclone chamber 2222. A flow guide channel 224 is formed between the inner cylinder 2221 and the middle pipe 212, and an avoidance hole is formed in the area of the downward spiral pipe 213 opposite to the flow guide channel 224, so that air exhausted from the first-stage separation assembly 222 can enter the second-stage separation assembly 223 through the flow guide channel 224 and the avoidance hole.

The secondary separation assembly 223 comprises a fixed shell 2231, a plurality of cyclone units 2232 arranged around the axis of the separation chamber, and a cover plate 2233; the fixed shell 2231 is connected to the top of the downward-rotating spiral pipe 213, the cyclone unit 2232 is disposed on the fixed shell 2231, the cover plate 2233 covers the upper end of the fixed shell 2231, and the cover plate 2233 is provided with a plurality of through holes for avoiding an outlet of the overflow cylinder 2236. When the dust collecting cylinder 23 is assembled, the second end 232 of the dust collecting cylinder 23 abuts against the lower portion of the fixing housing 2231. Each cyclone unit 2232 comprises a tangential air inlet duct 2234, a separating cylinder 2235 as a secondary cyclone chamber, and an overflow cylinder 2236 disposed in the separating cylinder 2235 and coaxial therewith, wherein the tangential air inlet duct 2234 is in tangential communication with an upper side edge of the separating cylinder 2235; the cover plate 2233 blocks the air flowing through the diversion channel 224 and turns the air into the tangential air inlet duct 2234, and then the air enters the separating cylinder 2235 for secondary cyclone separation, the separated fine particle dirt is discharged from the secondary dust outlet of the separating cylinder 2235 to the second dirt chamber 235, and the clean air is discharged from the overflow cylinder 2236 out of the separating cylinder 2235, that is, out of the cyclone main body 2. In a top view, all the secondary dust outlets are arranged around the periphery of the downward spiral tube 213 and just correspond to the second dirt chamber 235 sleeved outside the downward spiral tube 213. So design for the tiny particle foul that the second grade was separated can directly fall into in the second foul chamber 235, avoid current long and narrow second grade dust collection chamber design to cause the problem that tiny particle foul can't effectively fall into push away lid department and avoid tiny particle foul to pile up on above-mentioned second grade dust collection chamber wall for a long time and be difficult to effective clear problem.

Further, as shown in fig. 7 and 8, a spiral groove 2239 is disposed on an outer wall of the overflow cylinder 2236, a helix angle of the spiral groove 2239 is greater than a half-cone angle of the inverted cone 2238, that is, the spiral groove 2239 is disposed in an area between the overflow cylinder 2236 and the separation cylinder 2235, an inlet slot 22391 of the spiral groove 2239 is disposed corresponding to the tangential air inlet duct 2234 or an extension area thereof, and an outlet slot 22392 of the spiral groove 2239 is disposed corresponding to a connection between the cylindrical cylinder 2237 and the inverted cone 2238 of the separation cylinder 2235Is arranged or arranged corresponding to the upper part of the inverted cone 2238. The helix angle of the spiral groove 2239 is larger than the half cone angle of the inverted cone 2238, so that the air enters from the tangential air inlet duct 2234 to form a revolving airflow, and then enters the inverted cone 2238 through the spiral groove 2239, the centripetal force direction (located on the solid line circular plane shown in fig. 8) of the revolving airflow is deflected from the direction (located on the dashed line circular plane shown in fig. 8) originally perpendicular to the longitudinal axis of the separation cylinder 2235, and the supporting force F of the revolving airflow and the cylinder wall 233 of the inverted cone 2238 is_NThe directions form an upward included angle. It can be understood that, by this particular spiral groove 2239, the centripetal force F of the revolving airflow_{To the direction of}The direction is changed from a direction vertically pointing to the longitudinal axis of the separating drum 2235 to a direction obliquely upward pointing to the longitudinal axis of the separating drum 2235 due to the supporting force F of the drum wall 233 of the inverted cone 2238_NPerpendicular to the wall 233 of the inverted cone 2238, to maintain a resultant force F according to the force vector decomposition_NAnd centripetal force F_{To the direction of}Is balanced by a vector of (1), another component force F_{Is divided into}Positively and centripetal force F_{To the direction of}Respectively straddling resultant force supporting force F_NBoth sides of (a); thus, when the revolving airflow is behind the spiral groove 2239, the particles in the revolving airflow receive another component F_{Is divided into}The direction is downward, it can be understood that under the condition of the force, the separated particles move downward under the traction of a downward component, so that the particles separated from the air flow are discharged out of the dust discharge port rapidly in time, and the separation cylinder 2235 is ensured to be in a clean state without particles or with few particles accumulated, which is helpful for improving the separation and purification effect and prolonging the service life.

As shown in fig. 6, the cyclone separation main body 2 further includes an air guiding cover 25 connected to the upper portion of the cover plate 2233, a plurality of air guiding covers 251 are disposed in the air guiding cover 25, one end of each air guiding cover 251 is abutted to and communicated with an outlet of the overflow cylinder 2236, in a specific implementation, the end portion of each air guiding cover 251 is abutted to the edge of a through hole of the cover plate 2233, so as to rapidly discharge separated clean air flow, and simultaneously, the position relationship of the overflow cylinder 2236 relative to the separation cylinder 2235 is pressed and limited, thereby preventing the cyclone separation device from loosening and moving in the position of the overflow cylinder 2236 during the use and carrying processes, and further preventing the problem of poor separation effect.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "secured," "connected," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model and do not limit the scope of the utility model. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. A hand-held vacuum cleaner, characterized in that it comprises a cyclonic separating body having an inlet duct, a separator and a dust collecting cartridge, one end of the inlet duct passing through a first end of the dust collecting cartridge, the dust collecting cartridge passing in and out along the axis of the separator for selective mounting on or dismounting from the inlet duct or the separator; when the dust collecting barrel is in a detachable state, dirt is poured out from one side of the second end part of the dust collecting barrel.

2. The hand-held vacuum cleaner of claim 1, wherein the separator comprises a primary separation assembly and a secondary separation assembly, the primary cyclone chamber of the primary separation assembly being in communication with the inlet duct; the secondary separation assembly is located downstream of the primary separation assembly.

3. The hand-held vacuum cleaner of claim 2, wherein the dirt collection canister comprises a canister wall, a first dirt chamber disposed in the first end, and a second dirt chamber disposed in the second end, and wherein when the dirt collection canister is in an assembled state, the first dirt chamber corresponds to the primary dust exhaust of the primary cyclone chamber, and the second dirt chamber corresponds to the secondary dust exhaust of the secondary separation assembly.

4. The hand-held vacuum cleaner of claim 3, wherein the first and second dirt chambers are spaced apart along the axis of the separator.

5. The hand-held vacuum cleaner of claim 3 or 4, wherein the cartridge wall is integrally formed with the first dirt chamber.

6. The hand-held vacuum cleaner of claim 2, wherein the inlet duct comprises a connecting tube, a middle tube, and a down-spinning helix in sequential communication; the connecting pipe is arranged in the dust collecting cylinder in a penetrating way, and part of the connecting pipe protrudes to be used for sucking dirty air; the downward spiral pipe is used for downwards spirally leading the dirty air sucked from the connecting pipe into the primary cyclone chamber.

7. The hand-held vacuum cleaner of claim 6, wherein the side of the spiral pipe is further provided with a cleaning opening for cleaning dirt in the spiral pipe.

8. The hand-held vacuum cleaner of claim 2, wherein the secondary separation assembly comprises a plurality of cyclone units disposed about the separator axis, each cyclone unit comprising a tangential air inlet duct, a separation drum, and an overflow drum disposed within and coaxial with the separation drum, the tangential air inlet duct communicating with the separation drum; the outer wall of the overflow cylinder is provided with a spiral groove, and the helix angle of the spiral groove is larger than the half cone angle of the inverted cone of the separation cylinder.

9. The hand-held vacuum cleaner of claim 1, further comprising a handle and a suction generator; the cyclone separation device comprises a handle, a cyclone separation main body and a suction generator, wherein the cyclone separation main body and the suction generator are connected and supported on two sides of the handle respectively, the suction generator is located on the upper rear portion of the handle, and the cyclone separation main body is located on the upper front portion of the handle.

10. The hand-held vacuum cleaner of claim 9, wherein the handle further comprises an on/off switch, wherein a first actuation activates the suction generator to operate and a second actuation deactivates the suction generator to stop operation, i.e., rather than operating the vacuum cleaner under continuous pressure.

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