Wind-direction-variable dust collector main machine structure

Abstract

The utility model discloses a wind-direction-variable dust collector main machine structure which comprises a dust collection mechanism, a dust cup installed at one end of the dust collection mechanism and a dust inlet pipe connected with the dust cup, and a cover plate capable of being opened and closed is installed at the end, away from the dust collection mechanism, of the dust cup. The dust collection mechanism comprises a motor used for providing suction force and a direction changing mechanism used for changing the wind direction, the dust collector main machine structure at least comprises two working states providing different wind directions so as to conduct dust collection and dust cup dust removal, and the wind directions in the dust collection state and the dust cup dust removal state are changed through the direction changing mechanism. According to the dust collector main machine structure with the variable wind direction, the wind direction in the dust collector main machine can be changed through structural change without reverse rotation of the motor through cooperation of the ejector rod and the direction changing mechanism, the overall structural design is simple but ingenious, the frequency of cleaning a dust cup by a user can be effectively reduced, the dust collection efficiency is improved, and the service life is prolonged; and the user experience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a vacuum cleaner main unit structure with variable airflow direction. Background Technology

[0002] With social development and the improvement of people's living standards, vacuum cleaners are becoming increasingly popular. A vacuum cleaner typically consists of a main unit, a connecting hose, and a floor brush. The main unit includes a fan, and a dust cup is installed outside the main unit. A filter is placed between the fan and the dust cup. The fan draws dust and debris from the floor brush through the connecting hose into the dust cup, completing the suction and collection process. During this process, the fan motor, which enables the suction effect, rotates in one direction to ensure that the airflow is directed from the floor brush into the main unit.

[0003] However, almost all such vacuum cleaners have the following drawbacks: after prolonged use, the dust cup fills up and needs to be disassembled for cleaning; otherwise, it can easily cause airflow blockage and affect suction performance. This also means users need to manually disassemble the dust cup, and due to their structural limitations, various dust cups can easily interfere with cleaning tools, increasing the difficulty of cleaning. Some special models use dust cup structures that are easier to clean and attempt to use reverse fan rotation to blow away the dust cup. However, changing the dust cup structure does not effectively reduce the number of times users need to clean, and reverse fan rotation can easily damage the motor, reducing its lifespan and also leading to dust leakage.

[0004] Therefore, considering the aforementioned technical problems, it is necessary to provide a new technical solution. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum cleaner main unit structure that can change the direction of airflow through structural changes to clean the dust cup, reduce the frequency of manual cleaning by users, reduce the difficulty of cleaning, and has a longer service life and prevents dust leakage.

[0006] To solve the above-mentioned technical problems, this utility model provides a vacuum cleaner main unit structure with variable airflow direction, and the specific technical solution is as follows:

[0007] A vacuum cleaner main unit structure with variable airflow direction includes a vacuuming mechanism, a dust cup installed at one end of the vacuuming mechanism, and a dust inlet pipe connected to the dust cup. The end of the dust cup away from the vacuuming mechanism is equipped with an openable and closable cover. The vacuuming mechanism includes a motor for providing suction power and a direction-changing mechanism for changing the airflow direction. The vacuum cleaner main unit structure includes at least two working states that provide different airflow directions for vacuuming and dust cup cleaning, respectively. The airflow direction in the vacuuming state and the dust cup cleaning state is changed by the direction-changing mechanism.

[0008] The vacuum cleaner main unit structure is also equipped with at least one top rod that can move along a direction parallel to the axis of the vacuum cleaner main unit structure. One end of the top rod extends outward from the cover plate, and the other end is connected to the direction-changing mechanism. After the top rod is subjected to pressure in a direction parallel to the cover plate and pointing towards the vacuuming mechanism, it drives the direction-changing mechanism to move to change the airflow direction inside the main unit structure.

[0009] Preferably, the vacuum cleaner main unit structure is placed in a cup-shaped base in the dust removal state. The base is provided with a dust collection bag, and one end of the dust cup with a cover plate is open and extends into the dust collection bag in the base. A protrusion is fixedly provided in the base. The protrusion is adapted to the position of the top rod, and the protrusion is located on the movement path of the top rod so as to lift the top rod and drive the reversing mechanism to move when the vacuum cleaner main unit structure is inserted into the base.

[0010] Preferably, the dust collection mechanism includes a housing, with the motor fixedly installed inside the housing. The reversing mechanism includes a top cover, a support plate, and multiple connecting rods at both ends that are respectively connected and fixed to the top cover and the support plate. The reversing mechanism is movably installed inside the housing. The end of the motor near the dust cup is the air outlet, and the other end of the motor is the air inlet. The top cover and the support plate are located outside the air inlet of the motor, and the support plate is located outside the air outlet of the motor. The connecting rods are located on the outer periphery of the motor. One end of the housing is open and sealed to the end of the dust cup away from the cover plate, while the other end is adapted to the top cover in the reversing mechanism. A support ear plate is integrally connected to the top cover, and the support ear plate is fixedly connected to the end of the top rod.

[0011] Preferably, an outer cover is fixedly installed inside the outer casing, and the reversing mechanism also includes a reversing bottom cover fixedly installed inside the outer casing and located outside the support plate. The reversing bottom cover has a ventilation opening and is coaxially arranged with the support plate. The support plate can move closer to or away from the reversing bottom cover under the action of the connecting rod, and the size of the support plate covers the ventilation opening. The outer cover surrounds the motor from the periphery, and both ends of the outer cover are fixed and sealed to the end of the outer casing away from the dust cup and the reversing bottom cover, respectively. The outer cover has multiple ventilation holes, and an inner cover is fixedly installed inside the outer cover. One end of the inner cover is arranged around the periphery of the motor air inlet, and the inner cover is sealed to the motor air inlet by an annular sealing element.

[0012] Preferably, the outer casing has multiple air passages at the end away from the dust cup. The air passages include a central air passage located at the center of the end of the outer casing and multiple peripheral air passages evenly arranged around the central air passage. The position of the central air passage is adapted to the air inlet of the motor, and the position of the peripheral air passages is adapted to the gap between the inner and outer casings.

[0013] Preferably, the upper cover is fixedly provided with a plurality of directional changing parts pointing into the outer shell. The directional changing parts include a main directional changing part and a plurality of secondary directional changing parts evenly arranged around the main directional changing part. The main directional changing part is adapted to the central air passage hole, the secondary directional changing parts are adapted to the peripheral air passage holes, and one end of the main directional changing part is inserted into the inner shell through the annular notch formed by the inner shell surrounding the air inlet end of the motor.

[0014] Preferably, both the main and auxiliary reversing sections are tubular with through holes on their side walls. The through holes are located on a section of the side wall of the reversing section near the top cover, so that the side wall of the reversing section forms a non-ventilated solid part and a ventilated hollow part. The end of the auxiliary reversing section pointing towards the inside of the outer shell and the end of the main reversing section pointing towards the top cover are closed, while the connection end between the auxiliary reversing section and the top cover and the end of the main reversing section pointing towards the inside of the outer shell are open. In the dust suction state, the top cover is in contact with the end of the outer shell and the hollow part is located inside the outer shell. In the dust cup dust removal state, the top cover is away from the end of the outer shell and the solid part of the auxiliary reversing section closes the peripheral air passage hole, and the solid part of the main reversing section closes the gap between the inner cover and the top cover.

[0015] Preferably, the reversing bottom cover is hollow, with its two ends pointing towards the inside of the outer shell and the inside of the dust cup, respectively, and several ventilation openings in different positions are provided on the two ends of the reversing bottom cover to change the airflow convergence point.

[0016] Preferably, the dust cup is equipped with a multi-cone filter, and a filter screen is installed at the end of the dust cup connected to the dust collection mechanism. The multi-cone filter divides the interior of the dust cup into a filtration chamber inside the multi-cone filter and a dust collection chamber located between the multi-cone filter and the dust cup. The filtration chamber is connected to the air outlet of the variable bottom cover through the filter screen.

[0017] Preferably, a limiting cover is also provided on the outer side of the upper cover, the limiting cover is connected and fixed to the outer shell, and a return spring is installed between the limiting cover and the upper cover.

[0018] The variable airflow structure of this vacuum cleaner main unit has the following beneficial effects:

[0019] This utility model features a variable airflow vacuum cleaner main unit structure. Through the cooperation of the top rod and the direction-changing mechanism, the airflow direction inside the vacuum cleaner main unit can be changed by structural changes without the motor reversing. Users only need to separate the main unit structure from the connecting pipe, floor brush, and other components and insert it directly into the base. The suction provided by the motor will then automatically blow away dust. When the user picks up the main unit structure, the airflow direction will return to normal under the action of the return spring. The overall structural design is simple yet ingenious, which can effectively reduce the frequency of users cleaning the dust cup, improve dust removal efficiency, and extend its service life, greatly improving the user experience.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of a vacuum cleaner main unit with variable airflow direction;

[0023] Figure 2 for Figure 1 A schematic diagram showing the connection between the main unit and the base of a vacuum cleaner;

[0024] Figure 3 for Figure 1 A cross-sectional schematic diagram of the central vacuuming mechanism;

[0025] Figure 4 for Figure 3 Schematic diagram of the reversing mechanism;

[0026] Figure 5 for Figure 3 A schematic diagram of the housing of the central vacuuming mechanism;

[0027] Figure 6 for Figure 3 A schematic diagram of the airflow direction of the vacuuming mechanism in vacuuming mode;

[0028] Figure 7 for Figure 3 A schematic diagram showing the airflow direction when the central dust collection mechanism is installed on the base and in the dust cup dust collection state.

[0029] Among them, 1-Dust suction mechanism; 11-Outer shell; 111-Central air vent; 112-Side air vent; 12-Directional change mechanism; 121-Top cover; 122-Support plate; 123-Connecting rod; 124-Directional change bottom cover; 125-Main directional change part; 126-Support ear plate; 127-Secondary directional change part; 13-Limit cover; 14-Reset spring; 15-Motor; 151-Outer cover; 152-Inner cover; 153-Seal; 2-Dust cup; 21-Multi-cone filter; 22-Filter screen; 23-Cover plate; 3-Dust inlet pipe; 4-Top rod; 5-Base; 51-Dust collection bag; 52-Protrusion part. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0031] Please see Figures 1 to 7 A vacuum cleaner main unit structure with variable airflow direction includes a vacuuming mechanism 1, a dust cup 2 installed at one end of the vacuuming mechanism, and a dust inlet pipe 3 connected to the dust cup. The end of the dust cup away from the vacuuming mechanism is equipped with an openable and closable cover 23. The vacuuming mechanism 1 includes a motor 15 for providing suction and a direction-changing mechanism 12 for changing the airflow direction. The vacuum cleaner main unit structure includes at least two working states that provide different airflow directions for vacuuming and dust cup cleaning, respectively. The airflow direction in the vacuuming state and the dust cup cleaning state is changed by the direction-changing mechanism.

[0032] The vacuum cleaner main unit structure is also equipped with at least one top rod 4 that can move along a direction parallel to the axis of the vacuum cleaner main unit structure. One end of the top rod extends outward from the cover plate, and the other end is connected to the direction-changing mechanism. After the top rod is subjected to pressure in a direction parallel to the cover plate and pointing towards the vacuuming mechanism, it drives the direction-changing mechanism to move to change the airflow direction inside the main unit structure.

[0033] The vacuum cleaner main unit is placed in a cup-shaped base 5 in the dust removal state. The base is provided with a dust collection bag 51. One end of the dust cup with a cover plate is open and extends into the dust collection bag in the base. A protrusion 52 is fixedly provided in the base. The protrusion is adapted to the position of the top rod and is located on the movement path of the top rod so as to lift the top rod and drive the reversing mechanism to move when the vacuum cleaner main unit is inserted into the base.

[0034] The dust collection mechanism 1 includes a housing 11, with a motor fixedly installed inside the housing. The reversing mechanism 12 includes a top cover 121, a support plate 122, and multiple connecting rods 123 that are respectively connected and fixed to the top cover and the support plate at both ends. The reversing mechanism is movably installed inside the housing. The end of the motor near the dust cup is the air outlet, and the other end of the motor is the air inlet. The top cover and the support plate are located outside the air inlet of the motor, and the support plate is located outside the air outlet of the motor. The connecting rods are located on the outer periphery of the motor. One end of the housing is open and sealed to the end of the dust cup away from the cover plate 23, and the other end is adapted to the top cover in the reversing mechanism. A support ear plate 126 is integrally connected to the top cover 121, and the support ear plate is fixedly connected to the end of the top rod.

[0035] An outer cover 151 is fixedly installed inside the outer shell 11. The reversing mechanism 12 also includes a reversing bottom cover 124 fixed inside the outer shell and located outside the support plate. The reversing bottom cover has a ventilation opening. The reversing bottom cover is coaxially arranged with the support plate. The support plate can move closer to or away from the reversing bottom cover under the action of the connecting rod, and the size of the support plate covers the ventilation opening. The outer cover surrounds the motor 15 on its periphery, and both ends of the outer cover are fixed and sealed to the end of the outer shell away from the dust cup and the reversing bottom cover, respectively. The outer cover has multiple ventilation holes, and an inner cover 152 is fixedly installed inside the outer cover. One end of the inner cover surrounds the periphery of the motor air inlet end, and the inner cover is sealed to the motor air inlet end by an annular sealing element 153.

[0036] The outer casing 11 has multiple air passage holes at the end away from the dust cup. The air passage holes include a central air passage hole 111 located at the center of the end of the outer casing and multiple peripheral air passage holes 112 evenly arranged around the central air passage hole. The position of the central air passage hole is adapted to the air inlet end of the motor, and the position of the peripheral air passage holes is adapted to the gap between the inner and outer casings.

[0037] The upper cover 121 is fixedly provided with a plurality of directional changing parts pointing into the outer shell. The directional changing parts include a main directional changing part 125 and a plurality of secondary directional changing parts 127 evenly arranged around the main directional changing part. The main directional changing part is adapted to the central air passage hole, and the secondary directional changing parts are adapted to the peripheral air passage holes. One end of the main directional changing part is inserted into the inner shell through the annular notch formed by the inner shell surrounding the air inlet end of the motor.

[0038] Both the main deflector 125 and the auxiliary deflector 127 are tubular with through holes on their side walls. The through holes are located on the side wall of the deflector near the top cover, so that the side wall of the deflector forms a non-ventilated solid part and a ventilated hollow part. The end of the auxiliary deflector pointing into the outer shell and the end of the main deflector pointing into the top cover are closed. The connection end between the auxiliary deflector and the top cover and the end of the main deflector pointing into the outer shell are open. In the dust suction state, the top cover is in contact with the end of the outer shell and the hollow part is located inside the outer shell. In the dust cup dust removal state, the top cover is away from the end of the outer shell and the solid part of the auxiliary deflector closes the peripheral air passage hole, and the solid part of the main deflector closes the gap between the inner cover and the top cover.

[0039] The deflector cover 124 is hollow, with its two ends pointing towards the inside of the outer shell and the inside of the dust cup, respectively. Several ventilation openings in different positions are provided on the two ends of the deflector cover to change the airflow convergence point.

[0040] The dust cup 2 is equipped with a multi-cone filter 21. A filter screen 22 is installed at the end of the dust cup connected to the dust collection mechanism. The multi-cone filter divides the inside of the dust cup into a filtration chamber inside the multi-cone filter and a dust collection chamber located between the multi-cone filter and the dust cup. The filtration chamber is connected to the air outlet of the variable bottom cover through the filter screen.

[0041] A limiting cover 13 is also provided on the outer side of the upper cover 121. The limiting cover is connected and fixed to the outer shell 11, and a return spring 14 is installed between the limiting cover and the upper cover.

[0042] It is worth noting that the cover plate 23 of the dust cup can be connected to the push rod. When the push rod is inserted into the base and moves, it drives the cover plate to open. The specific structure can be, for example, a torsion spring to control the opening and closing of the cover plate, or a torsion spring that is controlled by the push rod and rotates with the push rod. Since such structures are common in the mechanical field and widely used, they will not be described in detail here.

[0043] The working principle of the variable airflow vacuum cleaner main unit structure in this embodiment is as follows:

[0044] When the main unit is connected to the connecting pipe, floor brush, and other components for dust removal, the motor operates, and the main unit is in a dust suction state. At this time, the top rod 4 is not affected by external forces, and the upper cover 121 is in a retracted state under the influence of the return spring 14. At this time, the deflector is located inside the outer shell 11. The air movement path is as follows: Air enters the dust cup 2 through the dust inlet pipe 3, is filtered by the multi-cone filter 21 and the filter screen 22, and then enters the dust suction mechanism 1. At this time, the support plate covers the ventilation opening on the deflector bottom cover 124. The size of the deflector bottom cover is smaller than the inner diameter of the outer shell. Air enters the dust suction mechanism through the gap between the side of the deflector bottom cover and the outer shell, and enters the interior of the outer shell through the ventilation hole on the outer cover 151. At this time, the solid part of the main deflector 125 is located inside the inner shell, and the hollow part is located inside the outer shell. Air enters the air inlet of the motor through the hollow part of the main deflector and is discharged from the air outlet of the motor. After the air is sent out by the air outlet, the air is discharged from the outside of the upper cover 121 through the hollow part of the auxiliary deflector 127 inside the outer shell. For detailed path, please refer to [link to relevant documentation]. Figure 6 .

[0045] In the other dust cup cleaning state, after the vacuum cleaner main unit is inserted into the base 5, the top rod 4, affected by the protrusion 52, lifts the top cover 121. The top cover moves outward from the outer shell, driving the connecting rod 123, support plate 122, and various deflector parts to move. At this time, the hollow parts of the main deflector and the auxiliary deflector both extend out of the outer shell. Simultaneously, the solid part of the main deflector covers the gap between the inner cover and the outer shell to prevent air leakage. The solid part of the auxiliary deflector seals the peripheral air passage 112. When the motor is working, the air inlet can only draw in air from outside the outer shell through the main deflector. The air is discharged into the outer cover through the motor outlet and enters the dust cup through the ventilation holes of the outer cover, thereby changing the airflow direction. At this time, the airflow direction in the dust cup is completely opposite to that in the vacuuming state. As the air blows towards the dust cup, the cover 23 opens, blowing the dust in the dust cup into the dust collection bag, achieving the effect of cleaning the dust cup.

[0046] The beneficial effects of this utility model are: through the cooperation of the top rod and the reversing mechanism, the airflow direction inside the vacuum cleaner main unit can be changed by structural changes without the need for motor reversal. Users only need to separate the main unit structure from the connecting pipe, floor brush and other components and insert it directly into the base. The suction provided by the motor will then automatically blow away dust. When the user picks up the main unit structure, the airflow direction will return to normal under the action of the return spring. The overall structural design is simple but ingenious, which can effectively reduce the frequency of users cleaning the dust cup, improve dust removal efficiency and extend its service life, greatly improving the user experience.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. A variable direction dust cleaner main structure, characterized by: The dust collector comprises a dust suction mechanism (1), a dust cup (2) mounted at one end of the dust suction mechanism, and a dust inlet pipe (3) connected with the dust cup, wherein the dust cup is provided with a cover plate (23) which can be opened and closed at the end away from the dust suction mechanism, the dust suction mechanism (1) comprises a motor (15) for providing suction force and a direction changing mechanism (12) for changing the direction of the wind, and the dust collector main structure comprises at least two working states for providing different wind directions to perform dust suction and dust cup dust removal respectively, and the wind direction in the dust suction state and the dust cup dust removal state is changed by the direction changing mechanism; At least one top rod (4) which can move along the direction parallel to the axis of the dust collector main structure is further mounted on the dust collector main structure, one end of the top rod extends to the outside of the cover plate, and the other end is connected with the direction changing mechanism, and the top rod drives the direction changing mechanism to move to change the direction of the wind in the main structure after being pressed in the direction parallel to the cover plate and pointing to the dust suction mechanism.

2. The variable direction dust cleaner main structure according to claim 1, characterized by: The dust collector main structure is placed in a cup-shaped base (5) in the dust removal state, the base is provided with a dust collecting bag (51), the dust cup is opened at the end with the cover plate and extends into the dust collecting bag in the base, and the base is fixedly provided with a synaptic part (52), the synaptic part is matched with the position of the top rod, and the synaptic part is located on the movement path of the top rod so as to lift the top rod and drive the direction changing mechanism to move when the dust collector main structure is inserted into the base.

3. The variable direction dust cleaner main structure according to claim 1 or 2, characterized by: The dust suction mechanism (1) comprises an outer shell (11), the motor is fixedly mounted in the outer shell, the direction changing mechanism (12) comprises an upper cover (121), a support plate (122), and a plurality of connecting rods (123) which are respectively connected and fixed at two ends of the upper cover and the support plate, and the direction changing mechanism is movably mounted in the outer shell, one end of the motor close to the dust cup is an air outlet end, the other end of the motor is an air inlet end, the upper cover and the support plate are located outside the air inlet end of the motor, the support plate is located outside the air outlet end of the motor, the connecting rods are located outside the motor, one end of the outer shell is open and is sealingly connected with the end of the dust cup away from the cover plate (23), and the other end of the outer shell is matched with the upper cover in the direction changing mechanism; the upper cover (121) is integrally connected with a support lug plate (126), and the support lug plate is connected and fixed with the end of the top rod.

4. The variable direction dust cleaner main structure according to claim 3, characterized by: An outer cover (151) is fixedly arranged on the inner side of the outer shell (11), the direction changing mechanism (12) further comprises a direction changing bottom cover (124) which is fixedly arranged in the outer shell and located outside the support plate, the direction changing bottom cover is provided with a ventilation opening, the direction changing bottom cover is coaxially arranged with the support plate, the support plate can be close to or away from the direction changing bottom cover under the driving of the connecting rods, the size of the support plate covers the ventilation opening, the outer cover surrounds the motor (15) on the peripheral side, and the two ends of the outer cover are respectively fixedly and sealingly connected with the end of the outer shell away from the dust cup and the direction changing bottom cover, the outer cover is provided with a plurality of ventilation holes, an inner cover (152) is fixedly arranged on the inner side of the outer cover, and one end of the inner cover is arranged around the peripheral side of the air inlet end of the motor and is sealingly connected with the air inlet end through a ring-shaped sealing element (153).

5. The variable direction dust cleaner main structure according to claim 4, characterized by: The outer shell (11) is provided with a plurality of air passing holes at one end away from the dust cup, including a central air passing hole (111) at the center of the end of the outer shell and a plurality of circumferential air passing holes (112) evenly arranged around the central air passing hole, the position of the central air passing hole is matched with the air inlet end of the motor, and the position of the circumferential air passing hole is matched with the gap position between the inner cover and the outer cover.

6. The variable direction dust cleaner main structure according to claim 5, wherein: The upper cover (121) is fixedly provided with a plurality of direction changing portions pointing to the inside of the outer shell, including a main direction changing portion (125) and a plurality of auxiliary direction changing portions (127) evenly arranged around the main direction changing portion, the main direction changing portion is matched with the central air passing hole, the auxiliary direction changing portion is matched with the circumferential air passing hole, and one end of the main direction changing portion is inserted into the inner cover from the annular gap formed by the inner cover around the air inlet end of the motor.

7. The variable direction dust cleaner main structure according to claim 6, characterized by: The main direction changing portion (125) and the auxiliary direction changing portion (127) are both tubular with a through hole in the side wall, the through hole is located in a section of the side wall close to the upper cover to form a solid part and a hollow part, one end of the auxiliary direction changing portion pointing to the inside of the outer shell and one end of the main direction changing portion pointing to the upper cover are closed, the connection end of the auxiliary direction changing portion and one end of the main direction changing portion pointing to the inside of the outer shell are open, the upper cover contacts the end of the outer shell and the hollow part is located in the inside of the outer shell in the dust collection state, the upper cover is away from the end of the outer shell in the dust removal state of the dust cup, the solid part of the auxiliary direction changing portion closes the circumferential air passing hole, and the solid part of the main direction changing portion closes the gap between the inner cover and the upper cover.

8. The variable direction dust cleaner main structure according to claim 4, wherein: The direction changing bottom cover (124) is hollow, the two end faces of the direction changing bottom cover point to the inside of the outer shell and the inside of the dust cup respectively, and a plurality of air vents are arranged on the two end faces of the direction changing bottom cover to change the wind direction collection point.

9. The variable direction dust cleaner main structure according to claim 8, characterized by: The dust cup (2) is provided with a multi-cone filter (21), and a filter screen (22) is arranged at one end of the dust cup connected with the dust collection mechanism, the multi-cone filter divides the inside of the dust cup into a filter cavity inside the multi-cone filter and a dust collecting cavity between the multi-cone filter and the dust cup, and the filter cavity is communicated with the air outlet of the direction changing bottom cover through the filter screen.

10. The variable direction dust cleaner main structure according to claim 3, wherein: The outer side of the upper cover (121) is further provided with a limiting cover (13), the limiting cover is fixedly connected with the outer shell (11), and a return spring (14) is arranged between the limiting cover and the upper cover.

Images