CN212213645U - Dust collector - Google Patents

Abstract

The utility model provides a dust collector, include: a body comprising an air inlet and an air outlet; a cup body assembly mounted on the main body; the cup body assembly comprises a cup body, and the cup body is provided with a cup opening; the cup cover is arranged on the cup opening in a covering manner; a motor assembly is arranged in the main body and rotates to generate suction force so that external air flow enters the main body from the air inlet and is discharged from the air outlet; the main part still includes the back shroud subassembly, the air outlet is located the back shroud subassembly, be equipped with in the back shroud subassembly and filter the piece, the air current in the main part process filter the piece back follow the air outlet is discharged, has solved current dust catcher and has not cleared up the dirt box for a long time and produce the bad smell and have not filtered clean dirty air who still carries the dust through the filter screen and get into the air and cause secondary pollution's problem.

Description

Dust collector

Technical Field

The utility model relates to a dust absorption cleans technical field, concretely relates to dust catcher.

Background

Along with the improvement of living standards of people, the application of a dust collector in life is more and more extensive, the working principle of the dust collector is that a motor of the dust collector rotates at a high speed to generate vacuum, dust or dirty air is sucked from a suction inlet, the dust or the dirty air enters a dust box through a floor brush, an extension pipe, a handle, a hose and the like, a filtering device is arranged in the dust box, the dust is filtered by the filtering device and is left in the dust box, and the filtered clean air is discharged out of the dust collector through the motor and an exhaust port.

The dust or dirty air sucked by the dust collector is filtered and then discharged out of the dust collector through the air outlet. Although the filter screens in the dirt box filter most of the dirt or dirty air, a small portion of the dirt will pass through the filter screens and be expelled from the motor and exhaust. Particularly, after long-time use or when dust is much, the dust can be attached to the exhaust filter screen to generate unpleasant smell and breed bacteria, or the dust returns to the air again through the exhaust filter screen to cause secondary pollution. The existing exhaust port filter screen is mostly installed in the machine body and is difficult to clean and replace. Therefore, the problem that the existing exhaust filter screen cannot be cleaned and replaced is urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a dust collector, include: a body comprising an air inlet and an air outlet; a cup body assembly mounted on the main body; the cup body assembly comprises a cup body, and the cup body is provided with a cup opening; the cup cover is arranged on the cup opening in a covering manner; a motor assembly is arranged in the main body and rotates to generate suction force so that external air flow enters the main body from the air inlet and is discharged from the air outlet; the main part still includes the back shroud subassembly, the air outlet is located the back shroud subassembly, be equipped with in the back shroud subassembly and filter, the air current in the main part passes through filter the piece back is followed the air outlet is discharged.

The advantage is, filter the air current that can effectual filtration process filter screen and dirt box, effectively filters filter screen and dirt box because of bacterium and the bad smell that the dust of not in time clearing up produced, avoids these bad smell that have the bacterium to get into the air in, influences user's healthy and use and experience, can reduce the noise that the air current produced through the tail-hood clearance fast simultaneously.

Preferably, the filter element is detachably disposed with the rear cover assembly.

The advantage is, be convenient for in time clear up or change the filter piece, because filter piece filtration bacterium and bad smell, long-time not clear up or change, its filtration efficiency can weaken even lose efficacy.

Preferably, the rear cover subassembly includes air-out cover and tail-hood, filter and locate air-out cover with between the tail-hood, air-out cover with the cooperation can be dismantled to the tail-hood.

The advantage is, convenient to detach tail-hood, and then will filter a piece clearance or change.

Preferably, the air outlet cover is provided with a fixing part, and the filtering part is in interference fit with the fixing part.

The advantage is, fixed filter piece is at the assigned position, avoids filtering a piece and is blown the skew mounted position by the air current, because the general velocity of flow through dust catcher filter screen and dirt box is great, leads to easily filtering a piece skew mounted position.

Preferably, the tail cap and the circumference adjacent the hood define the air outlet.

The advantage is, the user is when using the dust catcher, because the use habit, lid generally can squint with the user behind the dust catcher for the back lid of dust catcher can not be just facing the user, sets up air outlet and makes the air current of dust catcher exhaust can not be just facing the user and blow at back lid position, uses and experiences better.

Preferably, the air outlet is trumpet-shaped.

The advantage is that the airflow is limited to be diffused into the air along the air outlet in a trumpet shape, and the trumpet-shaped air outlet can reduce the flow velocity of the airflow, so that the airflow discharged from the air outlet is gentle and smooth.

Preferably, an airflow inlet is formed in the bottom of the air outlet cover, and the filtering piece covers the airflow inlet.

The air flow inlet guides the air flow passing through the filter screen and the dust box to the air outlet cover for filtering, and the filter element completely covers the air flow outlet, so that the air flow discharged from the air flow inlet can be discharged out of the dust collector only by being filtered by the filter element.

Preferably, the tail cover is provided with a groove, and the groove is crescent.

The advantage is that when the exhaust filter cotton needs to be cleaned or replaced after being used for a long time, coins or objects with the same size as the coins can be inserted into the grooves to screw down the tail cover, so that the filter element can be replaced conveniently.

Preferably, the rear cover component is provided with a rope hanging hole.

The advantage is that can pass the rope in hanging the rope hole and hang the dust catcher in appointed storage position such as stores pylon or wall.

Preferably, the rear cover assembly is detachably connected to the main body.

The advantage is, when the back shroud subassembly broke down, is convenient for dismantle the back shroud subassembly alone and clear up or change.

The benefit is, the main part is equipped with the filter screen subassembly, the filter screen subassembly establish air inlet with between the back shroud subassembly, air current in the main part passes through in proper order behind filter screen subassembly and the filter piece follow the air outlet is discharged.

The advantage is, through the double filtration of filter screen subassembly and filtration piece, can be cleaner with the dirty air filtration clean back exhaust air that the main part was inhaled, avoid the air by secondary pollution.

Drawings

FIG. 1 is a perspective view of a vacuum cleaner;

FIG. 2 is an axial cross-sectional view of the vacuum cleaner;

FIG. 3 is an exploded view of the dirt cup assembly;

FIG. 4 is an axial cross-sectional view of the dirt cup assembly shown in the closed position;

FIG. 5 is an axial cross-sectional view of the dirt cup assembly shown in an open position;

FIG. 6 is an enlarged view of a portion a of FIG. 14;

FIG. 7 is an enlarged view of the portion b of FIG. 15;

fig. 8 is a schematic perspective view of the ejection mechanism;

FIG. 9 is a schematic view of the structure of the lift pin;

FIG. 10 is a schematic view of the structure of the lift pin;

FIG. 11 is a schematic view showing the movement of the stem bar caused by the rotation of the cup body;

FIG. 12 is a perspective view of a dust cup attachment ring;

FIG. 13 is a perspective view of a dust cup holder;

FIG. 14 is a schematic view of the ejector pin moving around the dirt cup attachment ring;

FIG. 15 is a schematic view showing the positions of the limiting ribs and the chamber on the cup body;

FIG. 16 is a schematic view of the connection of the cup body with the dust cup coupling ring and the dust cup holder;

FIG. 17 is a schematic view showing the connection of the cup body with the dust cup coupling ring and the dust cup holder;

FIG. 18 is a schematic view of the screen assembly coupled to the cleaning assembly;

FIG. 19 is a schematic view of the screen assembly coupled to the cleaning assembly;

FIG. 20 is a schematic view of the screen assembly coupled to the cleaning assembly;

FIG. 21 is a schematic view of the screen assembly coupled to the cleaning assembly;

FIG. 22 is a schematic view of a cleaning assembly;

FIG. 23 is an exploded view of the rear cover assembly;

FIG. 24 is an axial cross-sectional view of the rear cover assembly;

FIG. 25 is an axial cross-sectional view of the rear cover assembly;

FIG. 26 is a perspective view of the operation part;

FIG. 27 is an axial cross-sectional view of the operating portion;

wherein: 1. a main body; 10. a cup holder assembly; 11. a cup body assembly; 12. a cleaning assembly; 100. a dirt cup assembly; 110. a screen assembly; 120. filtering with a screen; 130. a cleaning assembly; 131. a rotating part; 132. a cleaning member; 133. a first cleaning section; 134. a second cleaning section; 135. a connecting rod; 136. an accessory; 137. a screen support; 140. an ejection mechanism; 141. a top rod; 142. a fastening part; 143. a positioning part; 144. a first elastic member; 145. a second inclined plane; 150. a cup cover; 151. a linkage section; 152. a second elastic member; 160. a cup body; 161. a chamber; 162. an opening; 163. limiting ribs; 164. a cup mouth; 170. a dust cup coupling ring; 171. surface A; 172. b surface; 173. a first buckle; 174. c surface; 180. a dust cup fixing seat; 181. a second buckle; 190. an elastic positioning bead; 191. a bead body; 192. a third elastic member; 193. positioning holes; 200. a motor assembly; 300. an operation section; 310. a rib is protruded; 320. a potentiometer; 321. a potentiometer rotating shaft; 330. a potentiometer substrate; 340. an installation part; 400. a battery assembly; 410. a main control board; 500. a rear cover assembly; 510. an air outlet cover; 511. a rope hanging hole; 520. a tail cover; 521. a groove; 530. a filter member; 540. an airflow inlet; 550. an air outlet; 560. a fixed part; 570. an installation port; 601. an air inlet.

Detailed Description

The following describes the present invention in detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1 to 17, 24, a vacuum cleaner includes a main body 1, the main body 1 including an air inlet 601 and an air outlet 550; a dirt cup assembly 100, said dirt cup assembly 100 being mounted on said main body 1; the dirt cup assembly 100 includes a cup body 160, the cup body 160 having a cup opening 164; the cup cover 150 is arranged on the cup opening 164, and the cup cover 150 covers the cup opening; a motor assembly 200 is provided in the main body 1, and the motor assembly 200 rotates to generate a suction force to allow an external air flow to enter the main body 1 from the air inlet 601 and to be discharged from the air outlet 550.

As shown in fig. 3, wherein, the dirt cup assembly 100 further includes a cup holder assembly 10 and a cup body assembly 11, the cup body assembly 11 is connected to the cup holder assembly 10, the cup body 160 is relative to the cup holder assembly 10 is rotated to open the cup cover 150, the cup cover 150 is opened by rotating the cup body 160, compared with the conventional button-type cup cover 150 opening manner, the misoperation of the dirt cup caused by collision or extrusion can be effectively avoided, the operation is simple and convenient, the user experience is better, no button is left on the cup body 160, and the integral appearance of the dirt cup is concise and beautiful.

As shown in fig. 2, 3 and 24, wherein the air inlet 601 is an inlet for dirty air or dust, the air outlet 550 is an outlet for filtered air flow, the cup 160 is used for collecting impurities such as dust absorbed through the air inlet 601, the cup opening 164 is an inlet for impurities, and the cup opening 164 is not limited to be disposed at a free end of the cup 160, which means an end of the cup 160 not connected to other components of the main body 1 in this case, as long as the position of the cup opening 164 facilitates the introduction of impurities into the cup 160, wherein the cup cover 150 is used for closing the cup 160, the cup cover 150 is disposed on the cup opening 164 such that the cup cover 150 completely covers the cup opening 164, the cup cover 150 can also be disposed on the main body 1, that is, the cup cover 150 is connected to the main body 1, or connected to the cup assembly 11, wherein the motor assembly 200 is used for providing power for the suction force of the vacuum cleaner, and in particular, the motor assembly 200 generates the suction force by rotating, and the impurities such as dirty air and dust outside the cleaner are sucked into the main body 1 through the air inlet 601.

As shown in fig. 3 to 17, the cup assembly 11 further includes an ejection mechanism 140 disposed on a side wall of the cup 160, a linkage portion 151 engaged with the ejection mechanism 140 is disposed on the lid 150, and the cup 160 rotates relative to the cup holder assembly 10 to enable the ejection mechanism 140 to engage with the linkage portion 151 to open the lid 150.

The side wall of the cup 160 has a hollow chamber 161, one end of the chamber 161 close to the cup cover 150 is provided with an opening 162, the ejection mechanism 140 is installed in the chamber 161, the ejection mechanism 140 includes a push rod 141 capable of moving in the chamber 161 along the vertical direction, and the cup 160 rotates relative to the cup base assembly 10 to make the push rod 141 move along the vertical direction to cooperate with the linkage portion 151 to open the cup cover 150.

As shown in fig. 4 to 8, the ejection mechanism 140 further includes a first elastic member 144 near one end of the cap 150, the first elastic member 144 is used for the return of the lift rod 141 after being lifted, the first elastic member 144 may be a spring, a soft rubber or other elastic member, and in this embodiment, the first elastic member 144 is preferably a spring.

As shown in fig. 4 to 8, the top bar 141 further includes a positioning portion 143 connected to the first elastic member 144, the positioning portion 143 is used for mounting the first elastic member 144, so as to prevent the first elastic member 144 from deviating from the mounting position during the compression process, and two ends of the first elastic member 144 abut against the cup 160 and the top bar 141 respectively. The positioning portion 143 may be a rod-shaped structure, and the first elastic member 144 is sleeved on an outer wall of the positioning portion 143; the first elastic member 144 may be in a groove-like structure and is fitted over the positioning portion 143, and the positioning portion 143 is preferably in a rod-like structure in this embodiment.

The top rod 141 and the linkage part 151 are matched to enable the cup cover 150 to cover the cup body 160. More specifically, the top rod 141 includes an engaging portion 142 disposed at a position corresponding to the opening 162, that is, the linking portion 151 is movably engaged with the engaging portion 142, in this embodiment, the movable engagement means that two components can be engaged with each other to keep the two components relatively fixed, and the engaged relationship can also be conveniently released, and in this embodiment, the preferable movable engagement is a snap connection.

As shown in fig. 3 to 5, when the cup 160 is rotated, the ejection mechanism 140 follows the circumferential rotation of the cup 160, thereby driving the ejector rod 141 to lift by a certain height to open the cup lid 150, specifically, when the ejector rod 141 is limited to move up and down in the axial direction of the cup 160 in the chamber 161, when the cup 160 is rotated, the cup 160 drives the ejection mechanism 140 to rotate synchronously around the cup holder assembly 10, the cup holder assembly 10 does not rotate relatively, and the cup holder assembly 10 is in sliding fit with the ejection mechanism 140, thereby enabling the ejector rod 141 to slide along the cup holder assembly 10 toward the cup lid 150 to lift by a certain height, thereby opening the cup lid 150.

It will be appreciated that, as shown in fig. 11, the ejection mechanism 140 does not circumferentially rotate with the cup 160 when the cup 160 is rotated, and in particular, the ejection mechanism 140 is defined in the cavity 161 to be capable of moving up and down in the axial direction of the cup 160, and when the ejection mechanism 140 is installed in the cavity 161 but not fixedly connected to the cup 160, the ejection mechanism 140 is connected to the cup holder assembly 10, and the cup holder assembly 10 is relatively non-rotatable, so that, when the cup 160 circumferentially rotates around the cup holder assembly 10, the ejection mechanism 140 does not synchronously circumferentially move, but the ejection mechanism 140 and the cup 160 are capable of relatively sliding, and the cup 160 is rotated to slide the ejection mechanism 140 relative to the cup 160 to a certain height, thereby opening the lid 150.

As shown in fig. 4 and 5, the lid 150 is connected to the cup 160 through a rotating structure, the rotating structure includes a second elastic member 152, when the lid 150 is closed on the cup 160, the second elastic member 152 is in a compressed state, and when the lid 150 is opened, the second elastic member 152 exerts an elastic force on the lid 150 to bounce the lid 150. When the linkage portion 151 of the cup lid 150 is disengaged from the fastening portion 142, the second elastic member 152 can bounce the cup lid 150 when the compression state is changed into the normal state, so as to achieve automatic opening of the cup lid and avoid hands from being contaminated when the cup lid 150 is opened by hands, wherein the second elastic member 152 can be a spring, a torsion spring, a soft rubber and other components which can be reset, and the preferred second elastic member 152 in this embodiment is a torsion spring.

As shown in fig. 3, 4, 5, 12 and 14, the cup holder assembly 10 includes a step surface engaged with the push rod 141, the step surface is disposed on a side of the cup holder assembly 10 facing the cup body 160, and the cup body 160 rotates relative to the cup holder assembly 10 to enable the push rod 141 to be engaged with the step surface to realize the movement of the push rod 141 in the vertical direction. Specifically, the step surface in this example means a plurality of splicing planes or arc surfaces or inclined surfaces which are not in the same horizontal plane.

The preferred step surface of this embodiment is disposed at the end of the cup holder assembly 10, i.e. the step surface is disposed at the end of the top end of the cup holder assembly 10 facing the cup body 160, which reduces the thickness of the cup holder assembly 10, saves materials, and reduces the production cost compared to disposing the step surface at the side of the cup holder assembly 10.

It will be appreciated that the step surface can be provided on the inner side of the cup holder assembly 10, and the bottom of the top rod 141 can be engaged with the step surface to achieve the same technical effect.

It will be appreciated that the step surface can also be disposed on the outer side of the cup holder assembly 10, and the bottom of the top rod 141 can be engaged with the step surface to achieve the same technical effect.

As shown in fig. 12, the stepped surface includes a surface a 171 and a surface B172, the surface a 171 is higher than the surface B172, the lift rod 141 passes through the surface B and then passes through the surface a when the cup body 160 rotates relative to the cup holder assembly 10, the lift rod 141 moves up to push the linkage portion 151 to open the cup lid 150 when the lift rod 141 contacts the surface a 171, and the surface a 171 and the surface B172 may be connected or disposed at intervals, which is shown in fig. 12.

As shown in fig. 15, the inner wall of the cup 160 includes a limiting rib 163, the limiting rib 163 is engaged with the surface B172, and after the lid 150 is opened, the limiting rib 163 abuts against the surface B172. After the cup cover 150 is opened, the limiting rib 163 is matched with the surface B172 to prevent the cup body 160 from rotating continuously, specifically, the shape of the limiting rib 163 is not limited in this example, and the limiting rib 163 can be a cylinder or a cuboid, as long as the limiting rib 163 can limit the cup body 160 to rotate within a certain angle; meanwhile, the number of the limiting ribs 163 is not limited in this embodiment, as long as the limiting ribs 163 can limit the cup 160 to rotate within a certain angle.

As shown in fig. 12 and 14, the a surface 171 is a first inclined surface, and the bottom of the top bar 141 includes a second inclined surface 145 engaged with the a surface 171, so that the top bar 141 can slide along the a surface 171, and further the top bar 141 is driven to move upward. The distance from the first inclined plane to the horizontal plane is gradually increased along the direction that the cup body 160 rotates to open the cup cover 150.

It will be appreciated that the entirety of the a-plane may be provided as a first slope having a unique slope.

As shown in fig. 12 and 15, wherein the B surface 172 is a vertical surface, the vertical surface can more effectively and stably limit the limiting rib 163, specifically, when the cup body 160 is rotated, the prop 141 is lifted to a certain height along the a surface 171, and when the cup body 160 is continuously rotated along the same direction, the limiting rib 163 can contact with the B surface 172, when the B surface 172 is set to be the vertical surface, the limiting rib 163 can be effectively limited, so that the cup body 160 stops rotating, and the cup body 160 is prevented from rotating infinitely, and the setting of the B surface to be the vertical surface takes into consideration that when the B surface 172 has a certain angle, and the force for rotating the cup body 160 is large, the limiting rib 163 is easy to slip when limiting with the B surface 172, so as to influence the limitation of the limiting rib 163 on the rotation angle of the cup body 160.

When the cup 160 is rotated, the push rod 141 and the cup 160 rotate, and the cup holder assembly 10 is not moved, the second inclined surface 145 at the bottom of the push rod 141 is matched with the step surface, so that the push rod 141 is lifted by a certain height along the axial direction of the cup 160, and the cup cover 150 is opened.

It can be understood that, rotating the cup 160, the cup holder assembly 10 can also rotate, the cup 160 drives the cup holder assembly 10 to rotate, but the rotating speed of the cup 160 and the cup holder assembly 10 is different, the ejector rod 141 is immobile, so that the step surface arranged on the cup holder assembly 10 is matched with the second inclined surface 145 of the ejector rod 141 arranged in the cup 160 to slide, the ejector rod 141 is lifted by a certain height along the axial direction of the cup 160, and the cup cover 150 is opened.

It will be appreciated that turning the cup 160, with the stem 141 stationary and the cup holder assembly 10 stationary, will be a structure in which the stem 141 can move upward to seat on the cup 160.

The cup 160 is rotated to open the cup cover 150 at least by an angle alpha, wherein alpha is more than or equal to 10 degrees, specifically, when the angle alpha is less than 10 degrees, on one hand, misoperation is easily caused, that is, the cup 160 can be opened by a small rotation, and when the cup cover 150 is not to be opened, a user carelessly touches the cup 160 to cause the cup 160 to rotate slightly to open the cup cover 150, which can affect the use experience; on the other hand, the step surface on the cup holder assembly 10 is steep, so that the cup 160 is not easy to rotate when rotating, a large force is required, and the operation is inconvenient, and the rotation angle α of the cup 160 is not less than 10 ° which is an optimal rotation angle capable of preventing the misoperation and easily rotating the cup 160.

Further, the cup 160 rotates an angle α relative to the cup base assembly 10 to open the cup lid, where α is not greater than 180 °. In this example α =180 °. When the cup 160 rotates clockwise within the angle range of 0 ° to 180 °, the stem 141 is not pushed up under the pressure of the first elastic member 144, the linkage portion 151 of the lid 150 is snap-fitted to the stem 141, and the lid 150 is in a closed state covering the cup 160. When the cup 160 rotates clockwise to 180 °, the upper limiting rib 163 of the cup 160 contacts with the B surface 172, the cup 160 cannot rotate continuously, the bottom of the top rod 141 is lifted to the a surface 171, the first elastic element 144 is compressed, the fastening position moves upwards, the fastening of the lid 150 and the top rod 141 is released, and the lid 150 is opened under the action of the second elastic element 152.

As shown in fig. 10 to 11, the bottom of the top bar 141 includes a second inclined surface 145, and the angle formed by the second inclined surface 145 and the horizontal plane is not greater than 60 °. The cup cover has the advantages that the first inclined surface is matched with the second inclined surface to ensure that the ejector rod is reliably lifted, so that the cup cover is opened; when the angle on second inclined plane and horizontal plane was greater than 60, the inclination on second inclined plane was steeper, and the cup was difficult for rotating this moment, need use great power to go the rotation, and often so operation can lead to the wearing and tearing on first inclined plane and second inclined plane, makes the ejector pin lifting failure, influences the bowl cover and opens, influences the use and experiences.

The projection length of the second inclined surface 145 on the horizontal plane is L, the diameter of the cup body 160 is D, wherein L is larger than or equal to (pi/36) D, when L < (pi/36) D, the projection length of the second inclined surface 145 on the horizontal plane is smaller, and two conditions exist, when the inclination of the second inclined surface is slower, the condition means that the length of the second inclined surface is smaller, the lifting height of the ejector rod in the vertical direction is smaller, the cup cover cannot be effectively opened, and the reliability is reduced; when the slope of the second slope 145 is steep, the cup 160 is not easy to rotate, and a large force is required to rotate, which affects the use experience.

As shown in FIG. 9, the width of the lift pins 141 is H, where H.gtoreq.L.

As shown in fig. 12, an elastic positioning bead 190 is disposed on the cup holder assembly 10, a hole matched with the elastic positioning bead 190 is disposed on the cup holder assembly 10, the elastic positioning bead 190 extends into the hole, the elastic positioning bead 190 can sink to enable the cup body 160 to rotate relative to the cup holder assembly 10, specifically, the elastic positioning bead 190 includes a bead body 191 and a third elastic member 192 connected to the bead body 191, wherein a positioning hole 193 for mounting the elastic positioning bead 190 is disposed on the cup holder assembly 10, the third elastic member 192 is mounted in the positioning hole 193, the bead body 191 is mounted in the positioning hole 193 and disposed at an upper end of the third elastic member 192, so that the third elastic member 192 can push the bead body 191 to move, in this example, the third elastic member 192 is a spring, a soft rubber, or other elastic structure, in this example, the third elastic member 192 is a spring, and the elastic positioning bead 190 plays a positioning role on one hand, the elastic positioning beads 190 and the positioning holes 193 are matched in place to generate sound and feel difference, so that the user can clearly know that the cup body 160 is correctly assembled to the cup holder assembly 10.

As shown in fig. 3, 12 and 13, the cup holder assembly 10 includes a dust cup coupling ring 170 and a dust cup holder 180, the dust cup coupling ring 170 is disposed between the dust cup holder 180 and the cup body 160 for connecting the dust cup holder 180 and the cup body 160, the cup body 160 rotates relative to the dust cup coupling ring 170 according to a first rotation direction to open the cup cover 150, and specifically, a step surface is disposed on a side of the dust cup coupling ring 170 facing the cup body 160, the step surface cooperates with the second inclined surface 145 at the bottom of the lift pin 141 to rotate the cup body 160 according to the first rotation direction, so that the lift pin 141 can move relative to the step surface to lift the lift pin 141 to a certain height, and the second elastic member 152 is used to convert a compression state into a normal elastic force to open the cup cover 150.

As shown in fig. 12 and 13, when the cup body 160 rotates in the second rotation direction, the dust cup coupling ring 170 is driven to rotate synchronously to disengage the dust cup coupling ring 170 from the dust cup holder 180, specifically, a first latch 173 is disposed on a side of the dust cup coupling ring 170 facing the dust cup holder 180, and a second latch 181 engaged with the first latch 173 is disposed on a side of the dust cup holder 180 facing the dust cup coupling ring 170, but the present embodiment is not limited to the structure of the first latch 173 engaging with the second latch 181, as long as the first latch 173 can engage with the second latch 181 to latch the dust cup coupling ring 170 and the dust cup holder 180, wherein the first latch 173 and the second latch 181 can be fastened and fixed by rotating the cup body 160, or the first latch 173 and the second latch 181 in the fastened state can be disengaged by rotating the cup body 160, specifically, when the cup body 160 rotates in the second rotation direction opposite to the first rotation direction, that is, when the first rotation direction is clockwise rotation, then the second rotation direction is anticlockwise rotation, otherwise the same, the cup base assembly 10 still includes the spacing C face 174 of cooperation with spacing muscle 163, and the spacing C face 174 and spacing muscle 163 make can be dismantled the cup base assembly 10 by unlocking on the cup 160 when rotating the cup 160, specifically, when rotating the cup 160 along the cup 160 rotation direction that deviates from and opens bowl cover 150, at this moment, spacing muscle 163 moves to C face 174 to paste C face 174 tightly, when continuing to rotate the cup 160 along same direction, the cup 160 breaks away from with the cup base assembly 10.

It will be appreciated that, among other things, the cup 160 rotates relative to the cup holder assembly 10 in a first rotational direction to open the lid 150; the cup 160 is separated from the cup holder assembly 10 when rotating in the second rotation direction, specifically, one end of the cup 160 facing the cup holder assembly 10 is provided with a first buckle 173, the cup holder assembly 10 is provided with a second buckle 181 matched with the first buckle 173, in this example, the specific shape of the first buckle 173 and the second buckle 181 is not limited, as long as the first buckle 173 and the second buckle 181 can be matched to buckle and clamp the cup 160 and the cup holder assembly 10, wherein the first buckle 173 and the second buckle 181 are movably connected, that is, the first buckle 173 and the second buckle 181 can be buckled and fixed by rotating the cup 160, or the first buckle 173 and the second buckle 181 in a buckled state can be unlocked by rotating the cup 160, specifically, when the cup 160 rotates according to the second rotation angle, the first buckle 173 is rotated away from the second buckle 181, so that the first buckle 173 and the second buckle are unlocked, i.e., the cup 160 is unlatched from the cup holder assembly 10 to facilitate removal of the cup 160 from the cup holder assembly 10.

It is understood that the first latch 173 can be disposed on the inner sidewall of the cup coupling ring 170, and the second latch 181 can be disposed on the outer sidewall of the cup holder 180, such that the cup coupling ring 170 is disposed on the outer wall of the cup holder 180.

It is understood that the first latch 173 can be disposed on the outer sidewall of the cup coupling ring 170, and the second latch 181 can be disposed on the inner sidewall of the cup holder 180, such that the cup holder 180 is disposed on the outer wall of the cup coupling ring 170.

The dust cup assembly 100 is applied to a dust collector, so that the dust collector is convenient to operate, the probability of misoperation can be effectively reduced compared with the traditional mode of opening the cup cover 150 by pressing a button, and the structural design that the locking function is additionally arranged for preventing the misoperation when the dust collector opens the cup cover 150 by pressing the button is avoided.

Example two:

as shown in fig. 2 and 18, the vacuum cleaner further includes a screen assembly 110 and a cleaning assembly 12, the screen assembly 110 is used for filtering an external airflow, the cleaning assembly 12 is used for cleaning dust attached to the screen assembly 110, so that the filtering efficiency of the screen 120 is high, the screen assembly 110 is disposed in the cup 160, so that dirty air and dust can pass through the screen assembly 110, and further impurities such as dust cleaned by the screen assembly 110 through the cleaning assembly 12 can enter the dirt cup assembly 100, the cleaning assembly 12 cleans dust attached to the screen assembly 110 along the circumferential movement of the screen assembly 110, because dust adheres to the outer side of the screen assembly 110 during use, and if not cleaned in time, the dust blocks the air flow through the small holes in the screen assembly 110, thereby greatly affecting the filtering effect of the screen assembly 110, in this example, when the cleaning assembly 12 moves along the inner circumferential direction of the screen assembly 110, dust attached to the outer side wall of the screen assembly 110 can be effectively flicked off, so that the filtering efficiency of the screen assembly 110 is high.

It will be appreciated that when dust adheres to the inner side of the screen assembly 110, the cleaning assembly 12 moves circumferentially along the outer side of the screen assembly 110 to dislodge dust adhering to the inner side of the screen assembly 110, as shown in fig. 20; or, when dust adheres to the outer side of the screen assembly 110, the cleaning assembly 12 moves circumferentially along the outer side of the screen assembly 110 to scrape or brush off the dust adhering to the inner side wall of the screen assembly 110, and specifically, the cleaning assembly 12 further includes a scraper or a brush, etc. contacting with the side of the screen assembly 110, which can clean the dust, and the scraper or the brush is used to clean the dust on the screen assembly 110, which is not easily flicked off by the cleaning assembly 12.

It will be appreciated that when dust adheres to the inside portion of the screen assembly 110, the cleaning assembly 12 moves circumferentially along the inside portion of the screen assembly 110 to scrape or brush off the dust adhering to the inside wall of the screen assembly 110.

The cleaning assembly 12 rotates around the screen assembly 110360 °, so that the cleaning assembly 12 can clean dust attached to the screen assembly 110 without dead corners, and the screen assembly 110 can be cleaned more cleanly, and meanwhile, the present embodiment does not limit the rotating direction of the cleaning assembly 12 around the screen assembly 110, that is, the cleaning assembly 12 can rotate around the screen assembly 110 clockwise or counterclockwise.

As shown in fig. 2 and 18, the cleaning assembly 12 includes a cleaning portion 130, the cleaning portion 130 is configured to directly contact with the screen assembly 110, the screen assembly 110 includes the screen 120, and the cleaning portion 130 extends into the folds of the screen 120, because the screen 120 is generally made of a flexible material, when the screen 120 is installed, the screen 120 is relatively loosely arranged in consideration of that an airflow with a fast flow rate passes through the screen 120, so that the screen 120 is prevented from being broken, the filter 120 is folded after being installed, the folds can easily hide dust and are not easily cleaned, and when the cleaning portion 130 extends into the folds, the dust at the folds can be easily cleaned, so that the dust attached to the screen 120 is cleaned more cleanly, and the filtering efficiency of the screen 120 is improved.

It can be understood that, as shown in fig. 19, when the filter screen 120 is made of a hard material, the side wall of the filter screen 120 is hard, and the dust adhered to the side wall of the filter screen 120 is not easily flicked off when the cleaning part 130 cleans the dust, one side of the cleaning part 130 for cleaning the dust is tightly attached to the filter screen 120, so that the cleaning part 130 can clean the dust adhered to the side wall of the filter screen 120.

The length of the cleaning part 130 is greater than or equal to the height of the filter screen 120, specifically, the cleaning dust range of the cleaning part 130 completely covers the height of the filter screen 120, and when the cleaning part 130 rotates, dust attached to the filter screen 120 can be cleaned without dead corners as much as possible.

As shown in fig. 18 to 22, the cleaning assembly 12 further includes a rotating portion 131, the rotating portion 131 is connected to the cleaning portion 130, the rotating portion 131 rotates and drives the cleaning portion 130 to move synchronously after receiving an external force, specifically, when the rotating portion 131 drives the cleaning portion 130 to rotate, the rotating portion 131 is driven by the external force, so that the rotation of the cleaning portion 130 is stable, and the cleaning portion 130 can rotate synchronously with the rotating portion 131, that is, the rotation speed of the cleaning portion 130 can be controlled by controlling the external force, in this example, the external force includes, but is not limited to, a driving device such as a manual toggle, a motor or a motor, which can provide a driving force for driving the rotating portion 131 to rotate.

Wherein, the rotating part 131 is detachably connected with the cleaning part 130. The cleaning part 130 can be conveniently detached for cleaning or replacement, in the preferred embodiment, the rotating part 131 and the cleaning part 130 are fixedly connected by means of snap-in, and it can be understood that the cleaning part 130 and the rotating part 131 can also be connected by means of other methods such as screws or threads which are convenient to detach and install.

As shown in fig. 22, the cleaning assembly 12 further includes a connecting rod 135, the connecting rod 135 is detachably connected to the rotating portion 131, the cleaning portion 130 is detachably connected to the connecting rod 135, and specifically, the connecting rod 135 is connected to the rotating portion 131, this example is not limited to a fixed connection, but a detachable connection may also be adopted, which facilitates detachment and cleaning, and meanwhile, the connecting rod 135 is detachably connected to the cleaning portion 130, because the cleaning portion 130 needs to be in contact with dust, is easy to wear, and needs to be replaced frequently.

Wherein, the rotation portion 131 with the cup 160 cooperation, it is specific, rotate through the cup 160 and drive when the rotation portion 131 rotates, make to rotate through the cup 160 and can drive rotation portion 131 and rotate, this kind of mode that starts rotation portion 131 is intelligent, simple and convenient.

It can be understood that, as shown in fig. 19, the vacuum cleaner further includes an accessory 136, the accessory 136 is engaged with the rotating portion 131, the accessory 136 rotates to drive the rotating portion 131 to rotate, in this case, the accessory 136 is a device capable of providing rotating power, such as a motor or a motor, so that the rotating portion 131 is driven by the accessory 136 to rotate more stably.

It can be understood that the screen assembly 110 includes the screen 120 and the screen support 137, the screen support 137 is used for supporting or mounting the screen 120, so that the screen 120 can be limited to a certain shape, the screen support 137 rotates relative to the screen 120, and in particular, when the screen support 137 is fixedly connected with the rotating portion 131, the screen support 137 rotates to synchronously drive the rotating portion 131 to rotate, and the effect of driving the rotating portion 131 to rotate can also be achieved.

As shown in fig. 18 and 19, wherein the cleaning assembly 12 is disposed in the screen assembly 110, specifically, because dust adheres to the outer sidewall of the screen 120, when the cleaning assembly 12 is disposed inside the screen assembly 110, the dust can fall off under the action of the elastic force due to the pleats of the screen 120 being flapped better, on one hand, the purpose of cleaning the screen assembly 110 is achieved, on the other hand, the space utilization rate of the screen assembly 110 is made higher, more dust can be stored in the cup 160, the cup 160 does not need to be cleaned frequently, and the use experience is better.

Wherein, cup 160 for main part 1 rotates the setting, clean subassembly 12 is located the outside of screen subassembly 110 and with the cup 160 lateral wall is connected, and is concrete, when rotating through cup 160 and control clean subassembly 12 and rotate, and clean subassembly 12 is connected with the cup 160 lateral wall and can be better drive clean subassembly 12 to rotate in step through cup 160 for the rotation of clean subassembly 12 is more reliable and more stable, and the operation is more convenient.

As shown in fig. 21, the cleaning assembly 12 includes a first cleaning portion 133 and a second cleaning portion 134, the first cleaning portion 133 is located in the strainer assembly 110, the second cleaning portion 134 is located outside the strainer assembly 110, specifically, the first cleaning portion 133 is driven by the rotating portion 131, the second cleaning portion 134 is arranged inside the cup 160 and is driven by the cup 160, and by the cooperation of the first cleaning portion 133 and the second cleaning portion 134, the inner side wall and the outer side wall of the strainer 120 can be better cleaned at the same time, thereby improving the filtering efficiency of the strainer 120.

It can be understood that the second cleaning portion 134 can also be driven by the rotating portion 131, such that the second cleaning portion 134 rotates synchronously with the first cleaning portion 133, for example, the first cleaning portion 133 is connected to the top end of the second cleaning portion 134, such that the first cleaning portion 133 and the second cleaning portion 134 are integrally formed into a structural member, such that the filter screen 120 is disposed between the first cleaning portion 133 and the second cleaning portion 134, and the rotating portion 131 can drive the integral structure of the first cleaning portion 133 and the second cleaning portion 134 to rotate synchronously to clean the filter screen 120.

Example three:

as shown in fig. 23 to 24, the vacuum cleaner further includes a rear cover assembly 500, and in particular, the main body 1 includes the rear cover assembly 500, the rear cover assembly 500 is installed in the main body 1, an air outlet 550 is formed in the rear cover assembly 500, a filter element 530 is disposed in the rear cover assembly 500, and an air flow in the main body 1 passes through the filter element 530 and is then discharged from the air outlet 550, so as to effectively filter dirty air sucked by the vacuum cleaner for a second time, and prevent unfiltered clean air from being discharged into the air by the vacuum cleaner and affecting the health of a user.

As shown in fig. 23, in which the filter member 530 is detachably installed to the rear cover assembly 500, particularly, since the filter member 530 filters dirty air, it is required to be frequently replaced or cleaned, and when the filter member 530 is detachably coupled to the rear cover assembly 500, it is convenient to replace or clean the filter member 530.

As shown in fig. 24, wherein the rear cover assembly 500 includes a wind outlet housing 510 and a tail cover 520, the filter element 530 is disposed between the wind outlet housing 510 and the tail cover 520, the wind outlet housing 510 and the tail cover 520 are detachably engaged, specifically, a gap is left between the inner wall of the wind outlet housing 510 and the outer wall of the tail cover 520 for defining the air outlet 550 of the airflow exhaust dust collector, and a space can be defined between the inner wall of the wind outlet housing 510 and the bottom of the tail cover 520 for installing the filter element 530, wherein the wind outlet housing 510 and the tail cover 520 are detachably engaged, the detachable engagement includes, but not limited to, a screw thread and a snap fit, in this case, the detachable engagement is a screw thread, and the screw thread makes the connection between the tail cover 520 and the wind outlet housing 510 firmer and more convenient for detachment.

It can be understood that, as shown in fig. 25, the wind outlet housing 510 and the tail cover 520 may be fixedly connected, that is, the wind outlet housing 510 and the tail cover 520 may not be detached from each other, only the mounting opening 570 for taking out or mounting the filter 530 needs to be disposed on the sidewall of the wind outlet housing 510 or the tail cover 520, and the filter 530 may also be conveniently cleaned or replaced, in this embodiment, the wind outlet housing 510 and the tail cover 520 are detachably mounted, which is not only convenient for cleaning the filter 530, but also convenient for cleaning the wind outlet housing 510 and the tail cover 520.

As shown in fig. 24 and 25, the air-out housing 510 is provided with a fixing portion 560, the filter 530 is in interference fit with the fixing portion 560, specifically, the filter 530 is prevented from being blown by the air flow to deviate from the installation position, because the general flow rate of the air flow passing through the dust collector filter 120 and the dust box is large, when the filter 530 is not fixed, the filter 530 is easily deviated from the installation position, and the air flow blows the filter 530 to vibrate inside the air-out housing 510 to generate the noise influence experience, so the fixing portion 560 for installing and fixing the filter 530 is provided in the air-out housing 510, when the filter 530 is in interference fit with the fixing portion 560, the filter 530 is fixed in the fixing portion 560 more firmly, in this example, the structure of the fixing portion 560 is not limited, as long as the filter 530 can be fixed, in this example, the fixing portion 560 is preferably a cylinder extending integrally on the, the filter 530 is sleeved on a side portion of the cylinder, it can be understood that the fixing portion 560 may also be one of three-dimensional structures such as a truncated cone, a rectangular parallelepiped, and an umbrella, and similarly, the fixing portion 560 may be integrally formed with the air outlet cover 510, or may be separately formed and then installed.

As shown in fig. 24 and 25, the rear cover 520 and the circumference adjacent to the wind-out housing 510 define the air outlet 550, and specifically, the air outlet 550 is disposed in the rear cover assembly 500, so that the rear cover of the vacuum cleaner is generally offset from the user due to the usage habit when the user uses the vacuum cleaner, so that the rear cover of the vacuum cleaner does not face the user, and the air outlet 550 is disposed at the rear cover so that the airflow discharged from the vacuum cleaner does not blow towards the user, which is a good experience, wherein the circumference of the wind-out housing 510 in this example is not limited to the circumference of the inner wall of the wind-out housing 510, and similarly, the circumference of the outer wall of the wind-out housing 510 can also be the circumference of the outer.

It will be appreciated that the air outlet 550 may be formed in the tail cap 520, for example, by forming the opening 162 in the tail cap 520 without directly contacting the hood 510.

As shown in fig. 24 and 25, wherein the air outlet 550 is flared, specifically, the axial cross-sectional shape of the air outlet 550 is an inverted trapezoid, which limits the air flow to diffuse into the air along the air outlet 550 in a flared manner, the flared air outlet 550 can reduce the flow velocity of the air flow, so that the air flow discharged from the air outlet 550 is gentle and smooth.

It will be appreciated that the side of the axial cross-section of the air outlet 550 may be concave or convex, again to slow the flow rate of the air flow.

As shown in fig. 23 and 25, the bottom of the outlet housing 510 is provided with an airflow inlet 540, and the filter 530 covers the airflow inlet 540, and in particular, the airflow inlet 540 at the bottom of the outlet housing 510 can guide the airflow passing through the dirt cup assembly 100 into the rear cover assembly 500 for filtering, and the filter 530 covers the airflow inlet 540 so that the airflow entering the rear cover assembly 500 can be completely discharged out of the cleaner after passing through the filter 530, so that the airflow of the discharged air is filtered more cleanly.

As shown in fig. 23 and 25, the tail cap 520 is provided with a groove 521, the groove 521 is crescent-shaped, and in particular, when the tail cap 520 needs to be detached, the groove 521 is used for inserting a coin or an object with the size equivalent to the coin to unscrew the tail cap 520, so that the operation of detaching the tail cap 520 and replacing the filter 530 is more convenient.

It is understood that the axial cross-sectional shape of the groove 521 may be an arc shape, or a polygon such as a trapezoid, a quadrangle, etc., and the radial cross-sectional shape of the groove 521 may be a racetrack circle, or a polygon such as a rectangle, etc., and this example does not limit the specific shape of the groove 521, as long as an object can be inserted into the groove 521 to unscrew the tail cap 520, and the preferable shape of the groove 521 is a crescent shape.

As shown in fig. 23, a rope hanging hole 511 is formed in the rear cover assembly 500, the rope hanging hole 511 may be disposed in the tail cover 520, and the rope hanging hole 511 may also be disposed in the wind outlet cover 510.

Wherein, the rear cover assembly 500 with main part 1 can be dismantled and be connected, and is concrete, detachable construction is not limited to threaded connection or buckle grafting, still can be for other connected modes that can dismantle two parts conveniently and install, can dismantle rear cover assembly 500 and host computer and be connected for rear cover assembly 500 is convenient for change and clearance.

As shown in fig. 1, 2 and 23, the main body 1 is provided with the filter screen assembly 110, the filter screen assembly 110 is arranged between the air inlet 601 and the rear cover assembly 500, the air flow in the main body 1 passes through the filter screen assembly 110 and the filter element 530 in sequence and then is discharged from the air outlet 550, and through the double filtration of the filter screen assembly 110 and the filter element 530, dirty air sucked into the main body 1 can be filtered clean and then discharged into the air, thereby preventing the air from being secondarily polluted.

Example four:

as shown in fig. 1, the cleaner includes a switch for controlling the rotation speed of the motor assembly 200, and in particular, the switch is provided in the main body 1, and the switch includes an operating part 300, and the operating part 300 has a ring shape.

As shown in fig. 1, the annular operating part 300 is circumferentially wound around the main body 1 by one turn, so that the annular operating part 300 controls the rotation speed of the motor assembly 200 by rotating the operating part 300, and the structure makes full use of the shape of the main body 1, so that the operating part 300 is simple and convenient to operate and is elegant in appearance.

As shown in fig. 2, the switch is close to the air outlet 550, and particularly, because the motor assembly 200 is disposed close to the air outlet 550, the switch is disposed close to the air outlet 550, so that the wiring can be shortened, and the speed of the motor assembly 200 can be controlled better.

As shown in fig. 1 and 2, wherein the main body 1 is columnar, the outer surface of the operation portion 300 is flush with the outer surface of the main body 1, that is, the diameter of the radial section of the operation portion 300 is the same as that of the radial section of the main body 1, specifically, when the main body 1 is columnar, the operation portion is convenient for a user to hold, and the columnar is convenient for storage, so that the appearance integrity of the dust collector is strong and the appearance is elegant when the operation portion 300 is flush with the outer surface of the main body 1. Facilitating hand-held and single-handed/finger operation.

As shown in fig. 1 and 2, the vacuum cleaner further includes a battery assembly 400, the battery assembly 400 is disposed inside the main body 1, the switch is disposed between the battery assembly 400 and the motor assembly 200, specifically, the switch is used for controlling the motor assembly 200, and the battery assembly 400 is used for providing power to the motor assembly 200, so that the motor assembly 200 can be better controlled by the switch when the switch is disposed between the motor assembly 200 and the battery assembly 400, and the battery assembly 400 provides power to the switch and the motor assembly 200.

As shown in fig. 1 and 2, wherein the battery assembly 400 is close to the air outlet 550 and the motor assembly 200 is close to the air inlet 601, in particular, the motor assembly 200 is used for providing the suction force of the vacuum cleaner, so that the motor assembly 200 is arranged close to the air inlet 601, so that the suction force loss is small.

As shown in fig. 1, the operation portion 300 is provided with a rib 310, the rib 310 extends along the axial direction of the operation portion 300, specifically, the rib 310 plays a role in indicating items such as a rotation position or a rotation speed, and on the other hand, the operation portion 300 rotates better in the rotation process to avoid a user from slipping when the operation portion 300 is rotated, the rib 310 may have a straight line structure, or the rib 310 may also have a curved line structure, but the present embodiment does not limit the structure of the rib 310, as long as the indication and anti-slip effects can be achieved.

The switch is a non-polar switch, and the non-polar switch enables a user to adjust the suction force of the dust collector more accurately so as to meet the requirement that different users need to adjust different suction forces when using different scenes.

As shown in fig. 26 and 27, the stepless switch further includes a potentiometer 320 and a potentiometer substrate 330, the potentiometer 320 is electrically connected to the potentiometer substrate 330, the potentiometer substrate 330 is electrically connected to the battery and the control board assembly through a wire, the potentiometer 320 is rotatable relative to the potentiometer substrate 330, and the operation portion 300 is connected to the potentiometer 320, specifically, the operation portion 300 drives the potentiometer 320 to rotate relative to the potentiometer substrate 330 when rotating, so that the potentiometer 320 is started by rotating the operation portion 300, the resistance value of the potentiometer 320 is continuously changed when the operation portion 300 is continuously rotated, and then the resistance value change signal is transmitted to the main control board 410 of the motor assembly 200, thereby controlling the rotation speed change of the motor assembly 200 to realize stepless speed regulation of the motor.

It can be understood that the potentiometer 320 includes a potentiometer rotating shaft 321, the potentiometer 320 is fixedly connected to the potentiometer substrate 330, the fixing manner may be a fixing connection manner such as a screw, a buckle, or a welding, and the preferred fixing manner in this embodiment is a welding, the welding can firmly fix the potentiometer 320 on the potentiometer substrate 330, the potentiometer rotating shaft 321 is connected to the operation portion 300, and the operation portion 300 rotates to control the rotation of the potentiometer rotating shaft 321, so that the resistance value of the potentiometer 320 changes, and further the rotation speed of the motor assembly 200 is driven to change to realize stepless speed regulation of the motor.

It can be understood that the rotating shaft of the potentiometer 320 is fixed, the potentiometer 320 rotates, and the operating portion 300 drives the potentiometer 320 to rotate, so that the resistance value of the potentiometer 320 changes, and the rotation speed of the motor assembly 200 is controlled to change, thereby realizing stepless speed regulation of the motor.

The present embodiment does not limit the relationship between the rotation direction of the potentiometer 320 and the resistance value of the potentiometer 320, that is, the potentiometer 320 may rotate clockwise to increase the corresponding resistance value, or rotate counterclockwise to increase the corresponding resistance value.

As shown in fig. 2, a main control board 410 is further disposed in the main body 1, the main control board 410 is electrically connected to the motor assembly 200, the switch is electrically connected to the main control board 410, the operating portion 300 controls the resistance value of the potentiometer 320 to change when rotating, the resistance value signal of the potentiometer 320 is transmitted to the main control board 410, and the main control board 410 controls the rotation speed of the motor assembly 200 according to the resistance value signal.

As shown in fig. 27, an installation portion 340 is disposed in the middle of the operation portion 300, the potentiometer 320 is fixedly connected to the installation portion 340, specifically, the installation portion 340 is used for fixing the potentiometer 320, and the influence of the deviation of the installation position of the potentiometer 320 when the potentiometer is driven to rotate by the operation portion 300 on the stepless speed regulation operation is avoided.

Stepless speed regulation principle: when the user rotates the operation part 300, starts the potentiometer 320, and continues to rotate the operation part 300 in the first rotation direction, the resistance value of the potentiometer 320 gradually increases, the PWM signal transmitted to the main control board 410 of the motor assembly 200 continuously increases, the motor rotation speed continuously increases until the maximum rotation speed, and when the operation part 300 is rotated in the second rotation direction opposite to the first rotation direction, the rotation speed of the motor assembly 200 gradually decreases until the motor is turned off, thereby realizing the stepless speed regulation of the motor.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the technical scope of the present invention are included in the protection scope of the present invention.

Claims (11)

1. A vacuum cleaner, comprising:

a body comprising an air inlet and an air outlet;

a cup body assembly mounted on the main body;

the cup body assembly comprises a cup body, and the cup body is provided with a cup opening;

the cup cover is arranged on the cup opening in a covering manner;

a motor assembly is arranged in the main body and rotates to generate suction force so that external air flow enters the main body from the air inlet and is discharged from the air outlet;

the air filter is characterized in that the main body further comprises a rear cover assembly, the air outlet is formed in the rear cover assembly, a filter element is arranged in the rear cover assembly, and air flow in the main body passes through the filter element and then is discharged from the air outlet.

2. The vacuum cleaner of claim 1, wherein the filter element is removably disposed with the rear cover assembly.

3. The vacuum cleaner of claim 2, wherein the rear cover assembly includes a hood and a tail cover, the filter member being disposed between the hood and the tail cover, the hood and the tail cover being removably engaged.

4. The vacuum cleaner of claim 3, wherein the exhaust hood has a fixing portion, and the filter member is in interference fit with the fixing portion.

5. The vacuum cleaner of claim 3, wherein the tail cap and a circumference adjacent the hood define the air outlet.

6. A vacuum cleaner as claimed in claim 5, characterized in that the air outlet is trumpet-shaped.

7. A vacuum cleaner according to claim 3, wherein the hood has an airflow inlet at a bottom thereof, and the filter element covers the airflow inlet.

8. A vacuum cleaner according to claim 3, wherein the tail cap is provided with a recess, the recess being crescent shaped.

9. The vacuum cleaner of any one of claims 1 to 8, wherein a cord hanging hole is provided on the rear cover assembly.

10. The vacuum cleaner of any one of claims 1 to 8, wherein the rear cover assembly is removably connected to the main body.

11. The vacuum cleaner of claim 1, wherein the main body defines a screen assembly disposed between the air inlet and the rear cover assembly, and wherein the air flow within the main body passes through the screen assembly and the filter element in sequence before exiting the air outlet.

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