WO2013127237A1

WO2013127237A1 - Dust collecting device having central cyclone separation structure, and precipitator

Info

Publication number: WO2013127237A1
Application number: PCT/CN2012/087322
Authority: WO
Inventors: 刘庆林; 尹昌虎
Original assignee: 乐金电子(天津)电器有限公司
Priority date: 2012-02-28
Filing date: 2012-12-24
Publication date: 2013-09-06
Also published as: CN103284658A

Abstract

A dust collecting device having a central cyclone separation structure. The dust collecting device comprises a housing (11) and a central cyclone separation structure in the housing (11). The cyclone separation structure comprises a cyclonic cylinder (13) and a filter (17). The dust collecting device is provided with an air outlet and an air inlet (15) making the cyclonic cylinder (13) in communication with the outside of the housing. The axis of the cyclonic cylinder (13) is located in the center of the dust collecting device, and at least two dust outlets (16a) and (16b) are formed at a top opening of the cyclonic cylinder (13). The cyclonic cylinder (13) is located in the center of the dust collecting device, and at least two corresponding dust outlets (16a) and (16b) are formed, so as to facilitate uniform discharge of separated foreign substances such as the dust to two sides of the cyclonic cylinder, thereby increasing the effective space, in the dust collecting device, for accommodating dust, and further facilitating cleaning of the dust collecting device and a precipitator. Also provided is a precipitator containing the dust collecting device.

Description

Dust collecting device and dust collector with central cyclone separation structure

Technical field

The present technology relates to a dust removing technique, and more particularly to a dust collecting device and a vacuum cleaner having a central type cyclonic separating structure. Background technique

The vacuum cleaner is an indoor clean household appliance that removes dust from floors, carpets, walls, furniture, clothing, and various gaps.

According to the shape of the vacuum cleaner, it can be divided into vertical vacuum cleaners, horizontal (or can) vacuum cleaners, and portable vacuum cleaners.

Whether it is a vertical vacuum cleaner, a horizontal vacuum cleaner or a portable vacuum cleaner, the inside of the vacuum cleaner body is provided with a dust collecting device that separates, filters, and collects foreign matter such as dust. The dust and foreign matter collected inside the dust collecting device need to be periodically removed to ensure the vacuum cleaner. Normal use.

When the vacuum cleaner is running, the vacuum motor drives the impeller of the fan to rotate at a high speed to discharge the air inside the vacuum cleaner, forming an instantaneous vacuum inside the vacuum cleaner, and forming a relatively high negative pressure difference with the outside atmosphere. Under the action of the negative pressure difference, the inhaled gas containing foreign matter such as dust is sucked into the cyclone through the air inlet and forms a swirling airflow. During the traveling of the swirling airflow, part of the dust falls to the dust collecting device. At the lower part of the cylinder, at the same time, the separated and filtered gas is discharged from the air outlet to the outside of the vacuum cleaner. In this way, the effect of removing dust and cleaning the ground is achieved.

Chinese Patent Application No. 201010604620. 8 relates to an "integrated structure of a vacuum cleaner", which comprises a dust collecting cylinder having a handle and a cylinder cover that is engaged with the top of the dust collecting cylinder, and a built-in filtering is integrally formed vertically in the dust collecting cylinder. a core gas cylinder, a dust outlet of the gas cylinder is formed on a side wall of the top of the gas cylinder, and is opened in the dust collecting cylinder, and the air inlet and the air outlet of the gas cylinder are respectively formed on one side wall and the bottom of the dust collecting cylinder . The vacuum cleaner not only has a gas cylinder with a built-in filter core, but also integrates the dust collecting cylinder, the gas cylinder and the filter core, which saves cost, simplifies the number of parts, and greatly improves dust collection efficiency and dust separation efficiency.

1 is a schematic view showing a three-dimensional structure of a dust collecting cylinder having a cyclone separating structure in the prior art. As shown in the figure, a handle 2 for gripping is formed in the middle of the convex side of the dust collecting cylinder 1 having a semicircular cross section, and the handle 2 is An air inlet 5 leading to the gas cylinder 3 and the air inlet passage 4 in the dust collecting cylinder 1 is formed below. The upper side of the air cylinder 3 in the dust collecting cylinder 1 is formed with an additional side A dust outlet 6 formed after the cylinder cover (not shown). A filter core 7 having a dense filter hole is disposed in the center of the cyclone cylinder 3, and an open end of the filter core 7 faces an air outlet (not shown) at the bottom of the dust collecting cylinder 1.

In the dust collecting cylinder shown in Fig. 1, since the gas cylinder is located on one side of the horizontal center line of the dust collecting cylinder, that is, only one side of the dust collecting cylinder can accommodate dust, and the space on the other side of the dust collecting cylinder is not fully utilized, and It causes waste of effective space and hinders the accumulation of dust. Summary of the invention

In order to solve the problem of insufficient utilization of the effective dust collecting space in the dust collecting cylinder in the prior art, the present invention proposes a dust collecting cylinder and a vacuum cleaner having a central type cyclonic separating structure.

The technical solution of the present invention is as follows:

A dust collecting device and a vacuum cleaner having a central type cyclone separating structure, the dust collecting device comprising a casing and a central type cyclone separating structure in the casing, the cyclone separating structure comprising a gas rotating cylinder and a filter core, wherein the dust collecting device is provided An air outlet and an air inlet connecting the air cylinder and the outer portion of the casing, wherein an axial center of the air cylinder is located at a center of the dust collecting device, and at least two dust outlets are formed at the top of the air cylinder.

The present invention also proposes a vacuum cleaner having the above dust collecting device.

The invention is a handle formed in the middle of one side of the dust collecting device, and an air inlet is formed below the handle, and a filter core is arranged in the center of the air cylinder with an elliptical cross section in the dust collecting cylinder, and the axial center of the air cylinder is located in the center of the dust collecting cylinder And at least two dust outlets are formed at the top of the gas cylinder. The invention thus designed overcomes the waste of space in one side corner of the dust collecting cylinder and is difficult to clean. Since the gas cylinder is located at the center of the dust collecting cylinder and at least two corresponding dust outlets are respectively formed, it is convenient to uniformly discharge the separated foreign matter such as dust to both sides of the gas cylinder, thereby improving the effective dust collection in the dust collecting cylinder. Space is more conducive to the cleaning of dust collectors and vacuum cleaners. DRAWINGS

1 is a schematic perspective view of a prior art dust collecting cylinder having a cyclonic separating structure;

2 is a schematic perspective view of a preferred embodiment of the present invention;

3 is a schematic plan view showing a planar structure of a preferred embodiment of the present invention;

4 is a schematic top plan view of a preferred embodiment of the present invention.

Figure 5 is a schematic exploded view of another preferred embodiment of the present invention.

6A-6D are schematic structural views of different directions of the sealing cover used in the other preferred embodiment of the present invention. Fig. 7A is a cross-sectional view showing a specific embodiment of a horizontal cleaner using the dust collecting device of the present invention.

7B and 7C are a plan view and a side view of the horizontal vacuum cleaner of Fig. 7A. detailed description

The present invention provides a dust collecting device having a central type cyclone separating structure and a vacuum cleaner having the dust collecting device, wherein the dust collecting device includes a casing and a central type cyclone separating structure in the casing, and the side wall of the casing is formed An air inlet, the cyclone separation structure includes a gas cylinder and a filter core disposed at a center of the gas cylinder, the dust collecting device is provided with an air outlet, and an air inlet connecting the air cylinder and the outside of the housing. The axis of the cyclone is located at the center of the dust collecting device, and at least two dust outlets are formed at the top end of the side wall of the cyclone.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in Figs. 2 to 4, it is a schematic structural view of a preferred embodiment of the dust collecting device having a central type cyclone separating structure of the present invention in different directions. The embodiment is a dust collecting cylinder having a central type cyclone separating structure, which comprises an arcuate handle 12 formed at an appropriate position in the middle of the side wall of the dust collecting cylinder, and an air inlet 15 is formed below the arcuate handle 12, and the dust collecting cylinder is provided The air cylinder 13 having a cross section is preferably elliptical, and the filter cylinder 17 is provided with a filter core 17 at the center. The filter core 17 preferably has a hollow truncated cone shape with an open end. The bottom opening of the filter core 17 constitutes a dust collecting cylinder. The air outlet of the air cylinder 13 is formed with an air inlet passage 14 communicating with the air inlet port in a tangential direction, and the axial center of the air cylinder 13 is located at the center of the dust collecting cylinder, and the top opening of the air cylinder 13 is evenly formed at two intervals. One dust outlet 16a, 16b.

In this embodiment, an air inlet passage 14 communicating with the air cylinder 13 is formed at the air inlet, and the air inlet passage is disposed such that the airflow enters the air cylinder along a tangential direction of the side wall of the air cylinder to Conducive to the formation of vortex flow.

Preferably, as shown in FIGS. 2-4, the dust collecting cylinder housing 11 has an arch shape (large semicircular shape) having a square bottom portion, one side of which is a flat side wall, and the opposite side is approximately semicircular. The convex round wall is formed with a handle 12 that is easy to grip in the axial direction at a circumferentially intermediate position of the convex round wall. Of course, the shape of the dust collecting cylinder is not limited thereto, and may be an elliptical shape, a square shape, a circular shape, or the like, and the position and structure of the handle are not limited to the embodiment and the drawings, but may be set in other Any suitable location, and/or transformation to any form suitable for grasping.

The axial center of the cyclone cylinder 13 is preferably located at the center of the dust collecting cylinder housing 11 so that the dust collecting space formed between the dust collecting cylinder housing and the air rotating cylinder can contribute to higher dust collecting efficiency. In this embodiment, the top of the gas cylinder 13 is on the top of the mouth. The upper end of the top end of the dust collecting cylinder housing may be located at the same horizontal plane, and the long axis of the cyclone cylinder 13 is preferably located on the center line of the symmetrical two sides of the dust collecting cylinder, and the short shaft position may be set as needed. That is, the position of the cyclone can be flexibly set along the long axis direction as needed.

In this embodiment, a cyclone 13 having an elliptical cross section is used, so that the angular velocity becomes small but the linear velocity is maximum when the airflow is operated to the long axis position, and the dust separation effect is best at this moment. Therefore, the aforementioned gas cylinder having an elliptical cross section contributes to the improvement of dust separation.

The dust outlets 16a, 16b preferably correspond to the cylinder walls formed on the left and right sides of the long axis of the elliptical top opening of the cyclone cylinder 13, respectively. In this embodiment, the two dust outlets 16a, 16b of the cyclone cylinder 13 are respectively formed on the cylinder walls at both ends of the long axis of the elliptical top opening of the cyclone cylinder 13, and are respectively located on the left and right sides of the long axis, as shown in the figure. 2 is shown.

It should be noted that the present invention should not be limited to the formation positions of the dust outlets 16a, 16b described in the drawings and the embodiments. The dust outlets 16a, 16b may also be respectively formed on the wall of the cylinder opposite to the horizontal center line of the dust collecting cylinder 11 when the elliptical top end axis of the cyclone cylinder 13 is perpendicularly intersected (not shown), The object of the invention can be achieved.

In another embodiment, the dust outlets 16a, 16b are formed on the wall of the cylinder (not shown) on either side of the short axis of the elliptical top of the cyclone cylinder 13.

In an embodiment, the dust outlets 16a, 16b are respectively in the shape of corresponding upper slits, and the top of the gas cylinder 13 is closed when the top of the dust collecting cylinder is capped, so that the dust outlets 16a, 16b respectively become rectangular openings (not Illustration).

The filter element 17 is hollow, and the peripheral wall is densely covered with an equal diameter filter hole. The cone bottom of the filter element 17 is open, and is installed at the air outlet of the bottom of the dust collecting cylinder housing 11, and constitutes the air outlet 18 of the dust collecting cylinder (please refer to FIG. 5); The filter element 17 is preferably in the shape of a small, large, conical cone, preferably in the shape of a truncated cone, to provide a more sufficient space in the upper portion of the cyclone, so that the incoming gas containing dust or the like can efficiently form a vortex flow. Dust and the like can be quickly separated from the airflow and enter the dust collecting space through the dust outlets 16a, 16b.

Preferably, each of the dust outlets 16a, 16b between the casing of the dust collecting device and the gas cylinder respectively forms a separate dust collecting chamber. Further, corresponding to the air inlet 15, the dust collecting space between the cyclone 13 and the dust collecting device casing 11 is divided into left and right dust collecting chambers by the cyclone diaphragm 19. As shown in FIG. 2 and FIG. 3, in this embodiment, one end side of the long axis of the elliptical cross-section of the air cylinder 13 is in contact with the plane side wall of the casing 11, and the other end side passes through a cyclone plate 19 and the casing 11. The inner surfaces of the convex round walls are in contact with each other to form left and right dust collecting cavities respectively corresponding to the two dust outlets. The double-side dust collecting chamber is advantageous for balancing the airflow in the gas cylinder 13, which can effectively improve the separation efficiency, and the double-side dust collecting can increase the dust collecting capacity. Further, in the present embodiment, since the air inlet 15 is located on the right side, the cyclone inside the cyclone is counterclockwise, and the position of the dust outlet is preferably arranged in the counterclockwise direction in the long axis direction.

The dust collecting cylinder of the embodiment can be used for a horizontal vacuum cleaner, a vertical vacuum cleaner, a hand-held vacuum cleaner, etc., below The application is applied to a horizontal vacuum cleaner as an example.

As shown in Figs. 7A to 7C, it is a cross-sectional view and a plan view of a horizontal cleaner using the above-described dust collecting device of the present invention. The horizontal vacuum cleaner mainly comprises a body, a suction hose, a vacuum suction pipe and a nozzle or a brush head (not shown) connected to the distal end of the vacuum suction pipe. The vacuum cleaner body comprises a bottom shell 308 and a top cover 303. The lower part of the bottom shell 308 is respectively provided with a front caster 310 for facilitating movement of the body and a corresponding pair of rear casters 306. The top of the body is provided with a lock switch 301, a handle 302, a power control button and Recycle the reel button of the power cord. The hose connector on the top cover is connected to the suction hose, and the hose connector is provided with an adjustment knob 305 for controlling and adjusting the amount of intake air.

The vacuum cleaner body at the upper portion of the bottom casing 308 mainly includes a dust collecting cylinder having a cyclonic separating structure, and the air inlet 15 of the dust collecting cylinder communicates with the dust suction hose, the vacuum suction pipe, the suction nozzle or the brush head. Further, the air outlet 18 of the dust collecting cylinder is docked by the filter box 309 and the motor 307 placed in the motor box of the vacuum cleaner, and the exhaust air is filtered through the exhaust grid 304 and discharged.

In the vacuum cleaner, the cyclone separating structure combined with the casing 11 communicates with the air inlet passage 14 in a tangential direction on the peripheral wall of the air cylinder having an elliptical cross section, so that the air flow entering the air cylinder 13 from the air inlet 15 and the air inlet passage 14 is The filter element 17 forms a swirling airflow for the axis to achieve separation of dust and foreign matter.

The operation of the vacuum cleaner having the above structure of the present embodiment will be briefly described below.

When the horizontal vacuum cleaner is in operation, the power supply is turned on, and the dust suction motor drives the impeller of the fan to rotate at a high speed to discharge the air inside the vacuum cleaner, forming an instantaneous vacuum inside the vacuum cleaner, and forming a relatively high negative pressure difference with the outside atmosphere. Under the action of the negative pressure difference, the inhaled foreign matter containing dust or the like enters the inside of the vacuum cleaner (not shown) from the brush head or the suction nozzle of the vacuum cleaner, and passes under the dust collecting handle 12 The air inlet 15 passes through the air inlet passage 14 and enters the vortex direction into the air cylinder 13 having an elliptical cross section, and forms a vortex airflow around the filter element 17 in the air cylinder 13, and the larger particles of dust and foreign matter are filtered. 17 blocked, and as the cyclone is separated, the dust outlets 16a, 16b passing through the top of the gas cylinder 13 and located on the left and right sides of the elliptical long axis are respectively discharged and uniformly dropped into the gas cylinder 13 in the dust collecting cylinder In the dust collecting space on the side, when dust collects to a certain amount, it is cleaned separately.

At the same time, the gas of the foreign matter such as dust is separated, the filter hole 171 on the filter element 17 and the air outlet 18 communicating with the dust suction motor, and the filter of the motor case, the filter box, and the row grill (not shown). , become a clean gas, and finally discharge to the outside of the horizontal vacuum cleaner. As shown in FIG. 5, it is a schematic exploded view of another embodiment of the present invention. The shape and structure of the cyclone of the dust collecting device of this embodiment are substantially the same as those of the previous embodiment. The dust collecting device includes a casing and a central type cyclone separating structure in the casing, and the cyclone separating structure includes a cyclone cylinder and is disposed at the The filter core in the center of the gas cylinder is formed with a handle in the middle of the dust collecting device, and an air inlet is formed below the handle, and the air outlet is arranged at the bottom of the filter. The axial center of the air cylinder is located at the center of the dust collecting device, and at least two dust outlets are formed at the top end of the side wall of the air cylinder, and the housing of the dust collecting device and the air cylinder preferably correspond to each other. The dust ports are respectively formed into separate dust collecting chambers.

As shown in the figure, the cyclone separation structure of the dust collecting device is formed with an air inlet passage communicating with the air inlet port in a tangential direction on the wall of the air cylinder having an elliptical cross section, so that the airflow entering the air cylinder is vortexed by the filter core as an axis. Swirling air to achieve the purpose of separating dust and foreign matter.

As shown in Fig. 5, the peripheral wall of the filter element 17 includes a filter portion and a non-porous portion, and a peripheral portion of the air inlet port is a non-porous portion, and other peripheral wall portions are provided with filter holes to form a filter portion. The non-porous portion is provided by the side wall of the filter element facing the air inlet to avoid adversely affecting the airflow entering the air inlet passage and affecting the formation of the swirling air flow.

The housing 21 of the dust collecting device of the present embodiment includes a case body 211 and a cover body 212, and the cover body 212 and the case body 211 can be combined by a hook and a combination structure.

The shape and structure of the shell body 211 can be referred to, but not limited to the previous embodiment. The cover body 212 is preferably composed of a combination of a sealing cover 213 and an outer cover 214. For example, it can be screwed or the like in combination. The sealing cover 213 has a slightly flat shape for sealing the top opening of the casing body 211, thereby constituting a structure inside the dust collecting device for facilitating the formation of the swirling airflow and effectively separating the dust in the airflow. Of course, the structure of the cover 212 is not limited thereto, and other existing structures can be completely employed.

Preferably, as shown in FIG. 5, the top of the outer cover 214 is provided with a grip portion 218 for easy access, and a side edge thereof is provided with an engaging portion for assembling with the shell body 211. Specifically, in this embodiment, a hooking groove 216 is disposed at an axial center line of the convex wall of the shell body 211, and the outer cover 214 is provided with a convex buckle portion 217 corresponding to the hooking groove 216 of the shell body 211.

6A to 6D are schematic views of different orientations of a preferred embodiment of the sealing cover. The center of the sealing cover 213 preferably extends downwardly with a flow guiding column 215 to prevent a cone-shaped cyclone from colliding. After assembly, the guide column 215 is disposed upright and opposite to the filter element 17 in the gas cylinder 13' and spaced apart by a certain distance. The guide column 215 is used to avoid collision when the cone-shaped cyclone reaches the end for better separation; the spacing between the guide column and the filter element is preferably between 15-20 but not limited thereto.

The sealing cover 213 has a linear side corresponding to the planar sidewall of the housing body 211, and a central portion of the linear side extends downwardly with a tongue-shaped engaging portion, and the engaging portion is provided with a horizontal elongated engaging hole 219; The upper middle portion of the planar side wall of the shell body 211 is provided with a protruding portion 220 for engaging with the engaging hole 219 during assembly of the cover body to form an integral structure.

In this embodiment, the height of the cyclone 13' is preferably larger than the height of the casing body 211 of the dust collecting cylinder and protrudes from the casing body. Increasing the height of the cyclone cylinder is beneficial to the stroke of the cyclone, and the capacity can be effectively improved. It also improves its separation performance. Referring to FIG. 6A, correspondingly to the protruding end of the air cylinder, the inner side of the sealing cover 213 is preferably slightly recessed to form a receiving portion 221, and the center of the receiving portion 221 is formed. There is a flow guiding column 215 corresponding to the filter element 17.

Preferably, the sealing cover 213 is formed with a rib, and the rib is formed at a position corresponding to the top end of the side wall of the cyclone 13', and the rib can provide a certain sealing effect to ensure that the airflow is from the cyclone. The dust outlet of the cylinder is discharged without dispersing; preferably, the first dust outlet and the second dust outlet corresponding to the top of the air cylinder 13' are disposed intermittently, thereby including the first rib The strip 222 and the second rib 223 further ensure that the air flow is discharged from the dust outlet of the cyclone without being dispersed.

In the dust collecting device of the embodiment, the filter element is first assembled into the gas cylinder, and the sealing cover and the outer cover are assembled into one body. Finally, the assembled cover body is hook-bonded to the shell body, that is, the assembly is completed. Assembly. It can be seen that the present invention not only has a simple structure, but also has various advantageous structural features such as a plurality of dust outlets, a plurality of dust collecting cavities, an elliptical cyclone structure and a flat sealing cover structure, so that the present invention can achieve further Good dust removal effect. The present invention has been disclosed in terms of specific embodiments, which are not intended to limit the invention, and any equivalents of the invention may be made without departing from the spirit and scope of the invention. Equivalent changes and modifications made by the scope of protection shall remain within the scope of this patent. Furthermore, the above embodiments are only intended to illustrate and not limit the technical solutions of the present invention, but it should not be understood that the implementation must be a combination of all the features in the specific embodiments. In the specific application, the present invention may be characterized by the technical features described in the specification. (Including structure, method steps) According to actual needs, choose one item alone or select multiple combinations to use.

Claims

Claim

A dust collecting device having a central type cyclone separating structure, wherein the dust collecting device comprises a casing and a central type cyclone separating structure in the casing, the cyclone separating structure comprising a cyclone cylinder (13) and a filter element, The dust collecting device is provided with an air outlet and an air inlet (15) connecting the air cylinder and the outside of the housing, wherein the axial center of the air cylinder (13) is located at the center of the dust collecting device, and the air cylinder (13) At least two dust outlets (16a), (16b) are formed in the top opening.

2. The dust collecting device having a central type cyclone separating structure according to claim 1, wherein an air inlet passage (14) connecting the air rotating cylinder (13) is formed at the air inlet, and the air inlet passage ( 14) arranged such that the airflow enters the cyclone (13) along a tangential direction of the side wall of the cyclone (13).

A dust collecting device having a center type cyclone separation structure according to claim 1, wherein said gas cylinder (13) has an elliptical cross section.

4. The dust collecting device with a central type cyclone separating structure according to claim 1, wherein the filter element (17) has a truncated cone shape that is small and large, and a center of the top inner side of the dust collecting device extends downward. a flow guide column (215) corresponding to the filter element (17).

5. The dust collecting device having a central type cyclone separating structure according to claim 1, wherein a peripheral wall of the filter element (17) includes a filter portion and a non-porous portion, and a peripheral wall portion of the air inlet port is non-porous The other peripheral wall portion is provided with a filter hole to form a filter portion.

The dust collecting device having a central type cyclone separating structure according to claim 1, wherein a handle (12) is formed in a middle of one side of the dust collecting device, and the inlet is formed under the handle (12) The tuyere (15) is provided with the air outlet (18) corresponding to the bottom of the filter element (17).

The dust collecting device with a central type cyclone separating structure according to claim 1, wherein the dust collecting port (16a) is corresponding to the casing of the dust collecting device and the air rotating cylinder (13) (16b) form separate dust collecting chambers.

8. The dust collecting device having a central type cyclone separating structure according to claim 1, wherein a dust collecting space between the air rotating cylinder (13) and the dust collecting device housing is distinguished by a cyclone diaphragm (19) For the left and right dust collection chamber.

9. The dust collecting device having a central type cyclonic separating structure according to claim 8, wherein said cyclone is separated The plate (19) is located at the air inlet (15) - '

10. A dust collecting device having a central type cyclonic separating structure according to claim 4, wherein the casing comprises a casing body (211) and a cover body (212).

The dust collecting device having a central type cyclone separating structure according to claim 10, wherein a height of the air rotating cylinder (13) is larger than a height of the dust collecting device body (211) and protrudes from the shell body ( 211).

The dust collecting device with a central type cyclone separating structure according to claim 10, wherein the inner side of the sealing cover (213) is slightly concavely formed with a receiving portion (221) corresponding to a position of the top of the air rotating cylinder, The guide column 215 is formed at the center of the accommodating portion (221).

13. The dust collecting device having a central type cyclone separating structure according to claim 10, wherein the sealing cover (213) is formed with a rib, and the rib is formed at a position opposite to the side of the cyclone (13') The top of the wall corresponds.

The dust collecting device having a central type cyclone separating structure according to claim 13, wherein the at least two dust outlets corresponding to the top of the gas cylinder (13') are intermittently arranged And includes at least two rib segments.

The dust collecting device with a central type cyclone separating structure according to claim 10, wherein the cover body (212) comprises a sealing cover (213) and an outer cover (214), and the sealing cover (213) is slightly It is in the form of a flat plate for sealing the top opening of the casing body (211).

16. The dust collecting device having a central type cyclonic separating structure according to claim 1, wherein the cover body (212) and the case body (211) are combined by a hook combination structure.

The dust collecting device having a central type cyclone separating structure according to claim 1, wherein an axial center of the air rotating cylinder (13) is located at a midpoint of a horizontal center line of the cross section of the dust collecting cylinder (11), and the cyclone The midpoint of the long axis of the cylinder (13) intersects the horizontal centerline of the section of the dust collecting cylinder (11) perpendicularly at the midpoint.

18. The dust collecting device according to claim 1, wherein the dust outlets (16a) and (16b) are respectively formed on the long axis of the elliptical top of the gas cylinder (13). On the sides of the tube wall.

19. The dust collecting device having a central type cyclonic separating structure according to claim 1, wherein said The dust ports (16a) and (16b) are formed on the wall of the cylinder on both sides of the short axis of the elliptical top of the gas cylinder (13).

The dust collecting device having a center type cyclone separating structure according to claim 1, wherein the dust outlets (16a) and (16b) respectively have a corresponding upper slit shape.

A vacuum cleaner having the dust collecting device according to any one of claims 1 to 20.