Dust collector

Abstract

The utility model belongs to the field of dust collectors, and particularly provides a dust collector which can collect a large amount of floating hair from a pet body and efficiently clean the floating hair. The dust collector comprises a dust barrel, wherein an air inlet channel allowing dirty air to enter is formed in a barrel body; the dust-air separation unit is arranged in the dust barrel and is used for intercepting dirt in dirty air; the electric fan unit is used for generating suction airflow for sucking dirty air into the dust-air separation unit from the air inlet channel; the at least one group of comb tooth units are mounted on the dust barrel, are positioned near the at least one air inlet channel and are used for pets to rub hair; the hair scraping units are matched with the comb tooth units and are used for stripping hair on the comb tooth units; the at least one group of state conversion units are in contact with the comb tooth units or the dehairing units, so that the comb tooth units are converted between an extending state and a retracting state; in the extending state, comb teeth of the comb tooth unit extend outwards relative to the dehairing unit to form a combing part for pets to rub hair; and in the retraction state, the carding part retracts inwards relative to the dehairing unit.

Description

Technical Field

[0001] The utility model belongs to the field of vacuum cleaners, and particularly relates to a vacuum cleaner capable of sucking floating dust, hair and other dirt in the air. Background Art

[0002] Vacuum cleaners are now widely used in daily life to provide users with efficient and convenient cleaning services. However, vacuum cleaners usually clean dirt on fixed surfaces such as the ground, and it is difficult to clean dust, hair and other dirt suspended (or floating) in the air. These dirt in the air are more likely to be inhaled by the human body and affect physical health. For example, it can cause allergies and sneezing in people.

[0003] Air purifiers can clean suspended dirt, including floating hair. However, in order to work continuously to achieve the maximum air change rate, existing air purifiers strive to balance extremely low noise and extremely high air volume, and widely use low-speed axial flow electric fans. The rotational speed of the electric fan is generally about 3000 rpm, and the service life can reach about 10,000 hours, but the suction is very small, and floating hair needs to float near the air inlet to be sucked into the purifier. Every time spring and summer alternate, or autumn and winter alternate, multiple breeds of pet cats will shed a large amount of hair. Because they are wrapped by healthy hair around, after the floating hair detaches from the hair follicle, it will not immediately fall to the ground, but a large amount of it lies horizontally inside the hair layer. Therefore, pet cats like to lick their own hair more during the molting season. Although it can relieve itching briefly, it is easy to lick a large amount of floating hair into the abdomen and cause discomfort. Moreover, the range that a pet cat can lick by itself is limited, and there will still be a lot of floating hair clamped in the hair layer in the places that it can't lick, causing itching. As the pet cat moves around and its body posture changes, the rootless floating hair in the hair layer will gradually float to the surface of the hair layer, and finally break away from the hair layer with various accidental factors, scatter into the air, or adhere to the surfaces of furniture and home decorations such as sofas, beds, and dining tables, or transfer to the owner's arms. Excessive floating hair not only affects household hygiene, but also easily causes allergic symptoms in family members.

[0004] Therefore, the market needs a product that can not only collect a large amount of floating hair from pets, but also suck floating hair from the air, thereby effectively reducing the amount of floating hair in the environment. Summary of the Utility Model

[0005] The utility model is made to solve the above problems, and aims to provide a vacuum cleaner that can not only suck floating dust, hair and other dirt in the air, but also collect and clean a large amount of floating hair from pets, thereby effectively reducing the amount of floating hair in the environment. In the utility model, the air containing dirt is called dirty air.

[0006] In order to achieve the above purpose, the utility model adopts the following solutions:

[0007] The present utility model provides a vacuum cleaner capable of sucking dirt in the air, comprising: a dust bucket, with at least one air inlet channel for dirty air to enter formed on the shell wall; a dust-air separation unit disposed in the dust bucket for intercepting dirt in the dirty air; an electric fan unit, the inlet of which is connected to the dust-air separation unit to generate a suction airflow for sucking the dirty air from the air inlet channel into the dust-air separation unit; at least one set of comb teeth units installed on the dust bucket and near at least one air inlet channel for pets to rub their fur; at least one set of state conversion units in contact with the comb teeth units or the hair scraping units to enable the comb teeth units to switch between an extended state and a retracted state; and at least one set of hair scraping units matching the comb teeth units for stripping the hair on the comb teeth units; wherein, in the extended state, the comb teeth of the comb teeth units protrude outward relative to the hair scraping units to form a grooming part for pets to rub their fur; and in the retracted state, the grooming part retracts inward relative to the hair scraping units.

[0008] The beneficial effects of the above solution are as follows: On the premise of being able to suck dirt such as floating dust and hair in the air, by setting the comb teeth units, hair scraping units and state conversion units, the comb teeth units can be switched between an extended state and a retracted state relative to the hair scraping units. In the extended state, the comb teeth protrude for pets to rub their fur, thereby transferring the floating hair on the pets to the comb teeth; while in the retracted state, the hair scraping units strip the hair on the retracted comb teeth, and the stripped hair scatters in the air and enters the air inlet channel along with the suction airflow; thus, it can be used for pets to rub their fur, enabling the pet floating hair to be concentrated on the comb teeth units as much as possible, rather than being widely scattered and adhered everywhere, and then efficiently cleaning these hairs through the hair scraping units and the air inlet channel, effectively reducing the amount of floating hair in the environment. Moreover, since the comb teeth are more likely to take away the floating hair on the pets and allow the pets to rub, the pets will be more willing to actively rub. In addition, if the electric fan is in the on state during the fur rubbing process, some floating hair that floats into the air or is not clamped by the comb teeth will also be sucked into the dust bucket by the nearby air inlet channel.

[0009] In the present utility model, "in contact" means that force can be transmitted or linkage (interaction) can occur between two structures through contact. Whether the two structures are fixedly connected or can move relative to each other, as long as the two structures are in contact with each other, it belongs to "in contact". For example, the state conversion unit in contact with the comb teeth unit can be that the state conversion unit is fixedly connected to the comb teeth unit, or the state conversion unit and the comb teeth unit are only in contact with each other to transmit force through mutual contact.

[0010] Preferably, the comb tooth unit or the carding part and the hair scraping unit are both detachable and can be detached from the dust bucket for maintenance and replacement. Preferably, in the vacuum cleaner provided by the present utility model, there are multiple air intake channels, the multiple air intake channels are arranged at intervals, and a comb tooth unit is arranged near at least one side of each air intake channel. In addition, the comb tooth unit may include multiple groups of comb teeth, and each group of comb teeth may be arranged in an array according to a certain direction or arrangement shape. For example, multiple groups of comb teeth are arranged around the air intake channel, and at least one group of comb teeth is arranged on each side of the air intake channel. Such a setting can expand the carding area, making it more convenient for pets to rub their hair and for the floating hair to be carded and removed from the pet's body.

[0011] Preferably, in the vacuum cleaner provided by the present utility model, in the comb tooth unit, multiple groups of comb teeth are arranged in rows along at least one longest side of the air intake channel, and the comb tooth unit further includes a connecting plate connecting the multiple groups of comb teeth. The connecting plate can drive all the comb teeth to move synchronously and telescopically together. In addition, the connecting plate can also only play a role of supporting and limiting, and these comb teeth can be telescoped relative to the connecting plate synchronously or asynchronously.

[0012] Preferably, in the vacuum cleaner provided by the present utility model, at least one group of through holes is provided on the outer surface of the dust bucket, and the carding part telescopically moves along the through holes relative to the outer surface; a hair scraping unit is formed in the area on the outer surface of the dust bucket at the edge and in the vicinity of the through holes. A group of through holes can be openings that are continuous with each other to form a continuous area (for example, a long strip), and this opening corresponds to a group of comb tooth units, and one group or multiple groups of comb teeth in the comb tooth unit can extend or retract relative to this opening. In addition, a group of through holes can also be formed by a series of non - continuous (spaced - apart) holes. For example, one hole corresponds to one tooth, and the holes are spaced apart from each other, and these spaced - apart areas also belong to the hair scraping unit. Or one through hole corresponds to a cluster of comb teeth. The shapes and sizes of these through holes can be the same or different, as long as the comb teeth can extend or retract.

[0013] In addition, in the present utility model, the material of the comb teeth can be any material suitable for carding or collecting / rubbing floating hair (sufficient to scrape off the floating hair on the pet's body and allow the inhaled air flow to smoothly suck it away). For example, wood, metal, plastic, rubber, bristle or other composite materials, etc. Similarly, the shapes of the comb teeth and the teeth only need to be suitable for carding or collecting / rubbing floating hair. In addition, the surface roughness of the comb teeth can be set to be sufficient to scrape off the floating hair on the pet's body and allow the inhaled air flow to smoothly suck it away.

[0014] Preferably, in the vacuum cleaner provided by the present utility model, the state conversion unit includes: a driving mechanism for driving the comb tooth unit to retract relative to the hair scraping unit into a retracted state or extend into an extended state, and a locking mechanism for locking the comb tooth unit at the position of the retracted or extended state; the driving mechanism drives the comb teeth to move, the hair scraping unit remains stationary, and the locking mechanism is connected to the comb tooth unit and performs locking and unlocking actions; alternatively, the driving mechanism drives the hair scraping unit to move, the comb teeth remain stationary, and the locking mechanism is connected to the hair scraping unit and performs locking and unlocking actions. Additionally, it can also be that both the hair scraping unit and the comb tooth unit move, but there is relative movement between them, such that the comb tooth unit can retract or extend relative to the hair scraping unit. The locking mechanism can fix the state position of the comb tooth unit relative to the hair scraping unit. When fixed at the extended position, it can more stably and reliably provide a place for a pet to rub its hair. When fixed at the retracted position, it can store and protect the comb teeth, facilitating the overall storage and packaging of the vacuum cleaner. In the present utility model, both the driving mechanism and the locking mechanism can adopt any structure in the prior art that can achieve the corresponding functions.

[0015] The purpose of the relative movement between the combing unit and the hair scraping unit is: during combing, the comb teeth extend relative to the hair scraping unit, and during hair scraping, the comb teeth retract relative to the hair scraping unit, thereby realizing the combing and hair scraping actions. For the case where the hair scraping unit moves while the comb teeth remain stationary, for example, the hair scraping unit can be a hollow rectangular plate arranged around the periphery of the comb teeth, and the hollow area corresponds to the comb teeth to allow the comb teeth to extend and retract relatively. Or rows of scraping rods can be arranged in the hollow rectangular plate, corresponding to rows of tooth gaps. In addition, one hair scraping unit can correspond to one combing unit, or one hair scraping unit can correspond to several or all combing units.

[0016] In the vacuum cleaner provided by the present utility model, the hair scraping unit can be a scraper that matches and surrounds the comb teeth, and the driving mechanism is in contact with the scraper to drive the scraper to move back and forth relative to the comb tooth part.

[0017] In the vacuum cleaner provided by the present utility model, the locking mechanism can be in contact with the driving mechanism and includes: a card slot, a pressing member, and an elastic member; a limiting bayonet is provided in the card slot; the pressing member matches the card slot, and when the pressing member is not pressed by an external force, it is pushed by the elastic member to be engaged with the limiting bayonet (locked by clamping), and the state of the comb tooth unit is locked. The locking function is realized through a simple structure.

[0018] Furthermore, in the vacuum cleaner provided by the present utility model, the driving mechanism can include: an elastic member and a driving member; the elastic member abuts against the comb tooth unit or the hair scraping unit along a certain direction F to make the comb tooth unit enter the extended or retracted state; the driving member moves the comb tooth unit or the hair scraping unit along the direction opposite to F to make the comb tooth unit enter the opposite state.

[0019] In addition, in the vacuum cleaner provided by the present utility model, the driving mechanism may include: a comb tooth moving chamber, and a moving member; the comb tooth moving chamber is provided on the dust bucket, accommodates the comb tooth unit, and enables the comb tooth unit to move between two state positions of extending and retracting, and the moving member is in contact with the comb tooth unit and drives the comb tooth unit to move between the two state positions. Guide rods are respectively provided at the upper and lower ends of the comb tooth unit; the moving member includes: two rotating disks covering the top and bottom of the comb tooth moving chamber, at least one set of arc-shaped grooves are correspondingly provided on both rotating disks, each arc-shaped groove extends in an arc from a position far from the center of the rotating disk towards a position close to the center of the rotating disk, and the upper and lower guide rods of each comb tooth unit are respectively inserted into the arc-shaped grooves of the upper and lower rotating disks. In the present utility model, one driving mechanism can be in contact with all the comb tooth units and can drive all the comb tooth units to act, or only be in contact with one or several comb tooth units and only drive the corresponding comb tooth units to act.

[0020] In the vacuum cleaner provided by the present utility model, there may be multiple sets of comb tooth units, and one set of state conversion units. One set of state conversion units is in direct or indirect contact with all the comb tooth units, so that all the comb tooth units synchronously switch between the extended state and the retracted state.

[0021] In the vacuum cleaner provided by the present utility model, the electric fan unit may include: an electric fan, and a power supply for supplying power to the electric fan; the power supply is a rechargeable battery pack or a power cord assembly connected to the external power grid. The battery pack can facilitate the user to move the vacuum cleaner to any place for cleaning work. In addition, the battery pack can be charged with a conventional adapter. The vacuum cleaner further includes a movable base provided at the bottom of the dust bucket, which has rollers and roller stoppers, facilitating the user to move and fix the vacuum cleaner. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the vacuum cleaner according to the embodiment of the present utility model, where (a) is the extended state S2 and (b) is the retracted state S1;

[0023] Figure 2 is an exploded view of the vacuum cleaner according to the embodiment of the present utility model;

[0024] Figure 3 is Figure 1 (a) Schematic structure after removing the electric fan unit Figure 1 where (a) is the extended state S2 and (b) is the retracted state S1;

[0025] Figure 4 is Figure 1 (a) Schematic structure after removing the electric fan unit Figure 2 where (a) is the extended state S2 and (b) is the retracted state S1;

[0026] Figure 5 Schematic diagram of the structure after removing the rotating disk, where (a) is the extended state S2 and (b) is the retracted state S1; Figure 3 Schematic diagram of the structure after removing the rotating disk, where (a) is the extended state S2 and (b) is the retracted state S1;

[0027] Figure 6 Schematic diagram of the structure after removing the rotating disk, where (a) is the extended state S2 and (b) is the retracted state S1; Figure 4 Schematic diagram of the structure after removing the rotating disk, where (a) is the extended state S2 and (b) is the retracted state S1;

[0028] Figure 7 Partial schematic diagram of the driving mechanism involved in the embodiment of the present invention, where (a) is the front view and (b) is the view after (a) is inverted up and down;

[0029] Figure 8 Top view of Figure 3 . Detailed implementation mode

[0030] The following is a detailed description of the specific implementation of the vacuum cleaner involved in the present invention with reference to the accompanying drawings.

[0031] <Example>

[0032] As Figures 1 to 3 shown, the vacuum cleaner 1000 can suck dust, floating hair and other dirt suspended or floating in the air. The vacuum cleaner 1000 includes a dust bucket 10, a dust-air separation unit 20, an electric fan unit 30, multiple groups of comb teeth units 40, multiple groups of hair scraping units 50, a set of state conversion units 60, and a base 70.

[0033] The inside of the dust bucket 10 is hollow to form a dust collection chamber. The outer barrel is surrounded by inner and outer barrel walls 11 and 12 and upper and lower barrel covers 13 and 14. The inner barrel wall 11 and the outer barrel wall 12 are coaxial and spaced apart, and the space between the inner and outer barrel walls 11 and 12 is a hollow sandwich layer. The upper and lower barrel covers 13 and 14 are both annular and are respectively covered on the top and bottom of the hollow sandwich layer. The hollow sandwich layer is not connected to the dust collection chamber. At least one air inlet channel 15 for dirty air to enter is opened on the barrel body. In this embodiment, as Figure 2 and 6 shown, the dust bucket 10 is a circular barrel shape with openings at both the top and bottom. Six air inlet channels 15 penetrate the barrel body (penetrating the inner and outer barrel walls 11 and 1212). The air inlet channel 15 is not connected to the hollow sandwich layer but is connected to the dust collection chamber. The opening of the air inlet channel 15 penetrating the outer surface of the outer barrel wall 12 forms the suction port 151 of the vacuum cleaner 1000. External dirty air enters the dust collection chamber of the dust bucket 10 through the suction port 151. The six air inlet channels 15 are evenly and equally spaced from each other along the circumferential direction of the barrel body. Each air inlet channel 15 extends along the height direction of the dust bucket 10. Each air inlet channel 15 is in the shape of a cuboid, and the longest sides are the left and right sides, and the length of the longest side is slightly less than the height of the dust bucket 10.

[0034] As shown Figures 2 to 6 As shown, the dust-gas separation unit 20 is arranged inside the dust bucket 10 and is used to intercept dirt in the dirty air. In this embodiment, the dust-gas separation unit 20 is coaxially arranged with the dust bucket 10 and is located in the middle of the dust collection cavity; the dust-gas separation unit 20 includes a cylindrical filter net 21, a folded filter paper 22 and two sealing rings 23. The filter net 21 is used to intercept most of the dirt; the folded filter paper 22 is in a barrel shape, is located inside the filter net 21, and has an open upper part, and is used to further filter out finer dirt to obtain clean air. The two sealing rings 23 respectively seal the top and bottom of the dust-gas separation unit 20 with the electric fan unit 30 and the base 70.

[0035] The electric fan unit 30 is arranged above the dust-gas separation unit 20. The suction port 151 of the electric fan unit 30 is hermetically communicated with the dust-gas separation unit 20 and is used to stir the air to generate a suction air flow, so as to suck the dirty air in the external environment of the dust bucket 10 into the dust-gas separation unit 20 through the air inlet passage 15. In this embodiment, the electric fan unit 30 includes a support plate 31, an electric fan 32, a power supply, an exhaust hood 33 and a switch 34.

[0036] The support plate 31 is erected above the dust bucket 10 and is used to support the electric fan 32. A through hole is provided in the middle of the support plate 31, and the through hole is hermetically communicated with the inlet of the electric fan 32. A mounting ring is provided at the bottom of the support plate 31 corresponding to the inner barrel wall 11. Three mounting protrusions 311 matching the L-shaped mounting grooves 111 of the inner barrel wall 11 are evenly arranged in the circumferential direction of the mounting ring. By making the mounting protrusions 311 first enter the bottom of the vertical section of the L-shaped mounting groove 111 and then rotate to the horizontal section of the L-shaped mounting groove 111, the electric fan unit 30 can be fixedly installed on the dust bucket 10. If it is necessary to remove the electric fan unit 30 from the dust bucket 10, first rotate it in the reverse direction and then lift the electric fan unit 30 to drive the mounting protrusions 311 to leave the L-shaped mounting grooves 111. Since the dust-gas separation unit 20 and the electric fan unit 30 are detachably connected, the dust-gas separation unit 20 can be taken out together while removing the electric fan unit 30.

[0037] The electric fan 32 is installed on the support plate 31, with its inlet facing the upper opening of the folded filter paper 22, sucking in the air cleaned by the dust and gas separation unit 20; the electric fan 32 can be an electric fan 32 with low speed and low suction, or an electric fan 32 with high speed and large suction; if it is the former, the electric fan 32 can be kept on all the time; if it is the latter, it can be intermittently turned on (run intermittently). For example, in this embodiment, the electric fan 32 can use a commonly used motor of a purifier with low speed and low noise, with a large air volume and weak suction, a rotation speed ≤ 5000 rpm, a maximum vacuum degree of the electric fan ≤ 3 kPa, low noise ≈ 40 dB(A), and a long service life ≈ 10000 hours. Therefore, by continuously turning on the machine and sucking the dirt in the air within a very small range around the suction port of the purifier with weak suction, after about one month, a lot of dirt can also accumulate on the dust and gas separation unit 20, reflecting the air purification effect. The electric fan 32 can also use a high-speed vacuum brushless motor, with a high speed > 50,000 rpm, medium noise ≈ 70 rpm, medium service life ≈ 500 to 800 hours, and a maximum vacuum degree of the electric fan > 15 kPa, with strong suction. After using a high-power electric fan, the suction far exceeds that of ordinary air purifiers, and it is suitable for sucking floating dirt from a larger range of space. The high-speed vacuum brushless electric fan can be combined with a rechargeable battery pack. When the electric fan operates at a low gear, the maximum battery life of the battery pack is about one hour, and then it needs to be charged. Intermittent operation can prevent the premature exhaustion of the service life of the vacuum brushless motor. Each time it is used, the suction port 151 can have strong suction, which can effectively suck away the floating hair that has fallen off from the comb teeth and can also effectively suck the floating hair from the nearby air.

[0038] The power supply is connected to the electric fan 32. In this embodiment, the power supply is a rechargeable battery pack.

[0039] The exhaust hood 33 covers the support plate 31, and a plurality of exhaust ports 331 communicating with the outlet of the electric fan 32 are opened on the hood wall, discharging the cleaned air out of the vacuum cleaner 1000. The position of the exhaust port 331 is higher than that of the intake passage 15. The exhaust direction of each exhaust port 331 can be the same or different. When the user manipulates the vacuum cleaner 1000 to move in the room, the air discharged from the exhaust port 331 can be blown in different directions, so as to blow the floating hair from various furniture surfaces and facilitate it to be sucked away by the air flow flowing towards the intake passage 15. In this embodiment, the plurality of exhaust ports 331 are evenly arranged around the outer periphery of the exhaust hood 33. In addition, the upper part of the exhaust hood 33 is set to be appropriately recessed downward, which is more convenient for pets to lie on, making the floating hair on the pets closer to the suction port 151. Both sides of the upper part of the exhaust hood 33 are provided with handlebars 332, which are used for the user to rotate and lift the electric fan unit 30 and the dust and gas separation unit 20 through the handlebars 332 during cleaning, so as to facilitate the cleaning, maintenance, replacement, etc. of the dust and gas separation unit 20.

[0040] The switch 34 is installed on the exhaust hood 33 and is connected to the electric fan 32 to control the operation of the electric fan 32.

[0041] The comb tooth unit 40 is installed on the dust bucket 10 and is located near at least one intake channel 15. In this embodiment, every two groups of comb tooth units 40 correspond to one intake channel 15, and these two groups of comb tooth units 40 are arranged in rows along the longest side of the intake channel 15 on the left and right sides near the intake channel 15. The shortest vertical distance between the comb tooth part of the comb tooth unit 40 extending out of the bucket body 10 and the suction port 151 is about 5 mm. Comb tooth units 40 are provided on both the left and right sides of each intake channel 15, and a total of twelve are provided. As Figures 2 to 8 shown, the comb tooth unit 40 includes comb teeth 41, a connecting plate 42, and two guide rods 43.

[0042] The comb teeth 41 include three rows of teeth arranged along the longest side. Each row of teeth is formed by arranging dozens of teeth 411 spaced apart from each other, and the teeth 411 all extend outward from the dust bucket 10. In this embodiment, whether in the extended state S2 or the retracted state S1, the distance from the tip of each tooth 411 to the root (the root of the comb tooth part) remains unchanged, and the root of the tooth is always closer to the inner barrel wall 11 than the tip of the tooth.

[0043] The connecting plate 42 is used to fix or support multiple groups of comb teeth 41. In this embodiment, the connecting plate 42 is directly connected to the three rows of comb teeth 41 and is used to fix and synchronously move the three rows of comb teeth 41.

[0044] The two guide rods 43 are respectively arranged at the upper and lower ends of the comb tooth unit and penetrate through the upper and lower bucket covers 13 and 14.

[0045] Corresponding to each comb tooth unit 40, three rows of extension openings 121 are formed on the outer surface of the dust bucket 10. These three rows of extension openings 121 only penetrate the outer barrel wall 12 but do not penetrate the inner barrel wall 11, so that the comb teeth 41 can extend relative to the outer surface of the dust bucket 10. The extension openings 121 are not communicated with the dust collection cavity inside the dust bucket 10. The number of extension openings 121 is the same as that of the comb teeth 41. The three rows of extension openings 121 respectively match the three rows of teeth 411. Each row of extension openings 121 is a continuous slender strip, and the length is equivalent to the length of one row of comb teeth.

[0046] The hair scraping unit 50 is matched with the comb tooth unit 40 and is used to strip the hair on the comb tooth unit 40 when the comb teeth 41 retract relative to the hair scraping unit 50. In this embodiment, the hair scraping unit 50 is the hair scraping area on the outer surface of the outer barrel wall 12 at the edge and around the extension openings 121. The upper, lower, left, and right areas of the extension openings 121 all belong to the hair scraping area, and the area between adjacent extension openings 121 also belongs to the hair scraping area.

[0047] The state conversion unit 60 is in contact with the comb unit 40, causing the comb unit 40 to convert between the extended state S2 and the retracted state S1. In the extended state S2, the comb teeth 41 extend outward relative to the hair scraping unit 50, forming a combing part for the pet to rub its hair. In the retracted state S1, the combing part retracts inward relative to the hair scraping unit 50, and the hair scraping unit 50 pushes the hair from the root of the tooth 411 towards the front end of the tooth 411, causing the hair to leave the tooth 411 and scatter in the air and then be sucked into the dust collection chamber along with the suction airflow. The state conversion unit 60 includes a driving mechanism 61 and a locking mechanism 62.

[0048] The driving mechanism 61 is used to drive the comb unit 40 to retract relative to the hair scraping unit 50 into the retracted state S1 or extend into the extended state S2. As Figures 2 to 8 shown, the driving mechanism 61 is in contact with all the comb units 40, and is used to drive the comb units 40 to perform a movement conversion between the position corresponding to the extended state S2 in (a) and the position corresponding to the retracted state S1 in (b). The driving mechanism 61 includes a comb tooth moving chamber 611, two rotating disks 612, three fixed rods 613, and a handle 614.

[0049] The comb tooth moving chamber 611 is arranged in the hollow interlayer of the dust bucket 10, and the front opening is communicated with the extension opening 121. It is used to accommodate and limit the comb unit 40, and allows the comb unit 40 to perform a movement conversion between the extended and retracted state positions. The comb tooth moving chamber 611 is not communicated with the dust collection chamber and the dust-gas separation unit 20. The shape and size of the comb tooth moving chamber 611 correspond to those of the comb unit 40, and the number is equal to the number of comb units 40; as Figure 5 and 6 shown, in this embodiment, the comb tooth moving chamber 611 is in the shape of a cuboid, and its length and width are approximately equal to the length and width of the connecting plate 42. The length refers to the height direction of the dust bucket 10, and the width refers to the tangential direction of the dust bucket 10. In the thickness direction (the radial direction of the dust bucket 10), the sum of the thicknesses of the connecting plate 42 and the tooth 411 is not greater than the thickness of the comb tooth moving chamber 611, and the thickness of the comb tooth moving chamber 611 is less than the thickness of the shell wall, so that the comb unit 40 can move back and forth along the radial direction of the dust bucket 10 in the comb tooth moving chamber 611, avoiding rotation (the circumferential direction of the dust bucket 10) and horizontal movement (the tangential direction of the dust bucket 10). The comb tooth moving chamber 611 also has a rectangular upper opening and a lower opening, which are respectively closed by the upper and lower bucket covers 13 and 14. The comb unit 40 can only move along the radial direction between the front and rear side surfaces of the comb tooth moving chamber 611; after opening the bucket cover, the comb unit 40 can be taken out through the opening, and then the comb unit 40 can be cleaned, repaired, replaced, etc.

[0050] As Figure 5 (a) shown, when the connecting plate 42 is in the position close to the front side surface of the comb tooth moving chamber 611 (close to the extension opening 121), the comb unit 40 is in the extended state S2; asFigure 5 As shown in (b), when the connecting plate 42 moves to a position close to the rear side of the comb tooth moving chamber 611 (away from the extension outlet 121), the comb tooth unit 40 is in the retracted state S1.

[0051] Both of the two rotating disks 612 are annular, coaxial with the dust bucket 10, and are respectively rotatably arranged at the top and bottom of the dust bucket 10, denoted as the upper rotating disk 612-1 and the lower rotating disk 612-2 respectively. The upper rotating disk 612-1 is coaxial with the dust bucket 10, and covers the upper bucket lid 13, covering the top openings of all twelve comb tooth moving chambers 611, and can rotate relative to the dust bucket 10. At positions corresponding to the twelve comb tooth moving chambers 611 on the rotating disk 612, twelve arc-shaped grooves 612a are opened. The arc-shaped grooves 612a are not coaxial (concentric) with the rotating disk 612. Looking along the clockwise direction, the arc-shaped grooves 612a extend obliquely from the inner end A1 to the outer end A2, that is, the inner end A1 is closer to the center of the rotating disk 612, while the outer end A2 is far from the center of the rotating disk 612. The entire arc-shaped groove 612a extends in an arc from the position A2 far from the center of the rotating disk 612 towards the position A1 close to the center of the rotating disk 612, and the connecting line between the inner end and the outer end does not pass through the rotation center of the rotating disk 612. The lower rotating disk 612-2 is located in a groove with a downward opening at the bottom of the lower bucket lid 14, can rotate relative to the lower bucket lid 14, and does not bear the gravity of the dust bucket 10. Similar to the upper rotating disk 612-1, the lower rotating disk 612-2 is also provided with arc-shaped grooves 612a of the same number, position and shape.

[0052] The upper and lower end guide rods 43 of each comb tooth unit 40 are respectively inserted into the arc-shaped grooves 612a of the upper and lower two rotating disks 612. And, the guide rod 43 matches the arc-shaped groove 612a, and the arc-shaped groove 612a can move relative to the guide rod 43.

[0053] Three fixing rods 613 are arranged at equal intervals along the circumferential direction of the dust bucket 10 in the hollow interlayer. The upper and lower ends of each fixing rod 613 respectively extend out of the upper and lower bucket lids 13 and 14, and are detachably fixed to the upper rotating disk 612-1 and the lower rotating disk 612-2 by bolts. The upper rotating disk 612-1 and the lower rotating disk 612-2 are rotated together through the fixing rods 613. Correspondingly, at positions on the upper and lower bucket lids 13 and 14 corresponding to the moving paths of these three fixing rods 613, sliding grooves are correspondingly provided.

[0054] The handle 614 is connected to the rotating disk 612, for the user to hold, and then rotates the rotating disk 612 along the counterclockwise or clockwise direction, so as to drive the comb tooth unit 40 to switch between the extended state S2 and the retracted state S1. In this embodiment, the handle 614 extends radially outward along the rotating disk 612. The handle 61 can also be arranged to extend perpendicular to or obliquely to the radial direction of the rotating disk 612. In addition, the extension length can also be set according to requirements.

[0055] For example, as Figure 8 shown, when the guide rod 43 is at the A2 end of the arc-shaped groove 612a, correspondingly Figure 4 (a) and Figure 5 (a), at this time, the comb unit 40 is in the extended state S2; converting the comb unit 40 from the extended state S2 to the retracted state S1: driving the upper rotating disk 612-1 to rotate clockwise relative to the dust bucket 10 through the handle 614, and the three fixed rods 613 rotate in the chute accordingly, driving the lower rotating disk 612-2 to rotate synchronously. During this process, the arc-shaped groove 612a rotates with the rotating disk 612, driving the guide rod 43 to move along the arc-shaped groove 612a from the A2 end to the A1 end. During the movement, the distance (radius) between the contact point of the guide rod 43 and the arc-shaped groove 612a and the center of the rotating disk 612 gradually becomes smaller, and the guide rod 43 gradually approaches the center of the rotating disk 612 in the radial direction, as Figure 4 (b) and Figure 5 (b) shown. At the same time, the guide rod 43 drives the comb unit 40 to move from the front side of the comb moving chamber 611 to the rear side. When the guide rod 43 finally moves to the A1 end, the comb unit 40 is close to the rear side of the comb moving chamber 611, and the combs 41 are all retracted into the comb moving chamber 611 relative to the hair scraping unit 50, and are in the retracted state S1 position.

[0056] Similarly, to convert from the retracted state S1 to the extended state S2, it is only necessary to drive the rotating disk 612 to rotate counterclockwise relative to the dust bucket 10 through the handle 614.

[0057] As Figures 4 to 5 shown in FIGS. 7 and 8, the locking mechanism 62 is in contact with the driving mechanism 61 and is used to lock the comb unit 40 in the retracted or extended state position. In this embodiment, the locking mechanism 62 is installed on the upper rotating disk 612-1 and the barrel body 10 and is located near the handle 614. The locking mechanism 62 includes a card slot 621, a pressing member 622, and an elastic member 623.

[0058] The card slot 621 is opened on the upper rotating disk 612-1. The card slot 621 has an arc-shaped moving section 621a and two semi-circular limiting bayonets B1 and B2 extending radially from both ends of the moving section 621a in a direction away from the center of the rotating disk 612. The moving section 621a is coaxial with the upper rotating disk 612-1, and the radian of the moving section 621a corresponds to the rotating radian of the upper rotating disk 612-1. The two limiting bayonets B1 and B2 respectively correspond to the upper rotating disk 612-1 rotating to make the guide rod 43 in the A1 position and the A2 position, and the corresponding comb units 40 are respectively in the retracted state S1 and the extended state S2 positions.

[0059] The pressing member 622 is matched with the card slot 621 and is correspondingly installed on the upper barrel cover 13. The pressing member 622 includes a locking protrusion 622a and an unlocking member 622b. The locking protrusion 622a extends into the card slot 621, can move relative to the moving section 621a, and can be pushed by the elastic member 623 into the limit card opening, so as to be engaged and locked with the limit card opening. The unlocking member 622b is installed in the installation groove 131 of the upper barrel cover 13 and can only move back and forth along the radial direction of the upper rotating disc 612-1 in the installation groove 131. The unlocking member 622b is connected to the locking protrusion 622a and extends radially from the bottom of the locking protrusion 622a to expose below the upper rotating disc 612-1. The exposed part serves as an unlocking button 622b-1 for the user to press for unlocking. The elastic member 623 is arranged between the locking protrusion 622a and the rear side wall of the card slot 621 (the side wall opposite to the limit card opening) and is used to push the pressing member 622 into the limit card opening. In this embodiment, the elastic member 623 is a spring.

[0060] When the unlocking button 622b-1 is not pressed by an external force, the locking protrusion 622a is pushed outward (away from the center of the circle) by the elastic member 623 to be engaged with a certain limit card opening. The card slot 621 is locked by the locking protrusion 622a, the rotating disc 612 cannot rotate, and the corresponding state of the comb tooth unit 40 is locked. At this time, the state position of the comb tooth unit 40 remains unchanged. If the locking protrusion 622a is engaged with the limit card opening B1, the comb tooth unit 40 is locked at the retracted state S1 position; if it is engaged with the limit card opening B2, the comb tooth unit 40 is locked at the extended state S2 position.

[0061] When the pressing member 621 is pressed by an external force, the elastic member 623 is compressed inward (towards the center of the circle), the pressing member 622 moves inward, and the locking protrusion 622a withdraws from the limit card opening until its rear side abuts against the rear side wall of the card slot 621. At this time, the locking protrusion 622a enters the moving section 621a, and the card slot 621 can move relative to the locking protrusion 622a. The rotating disc 612-1 is in a rotatable unlocking state. At this time, the state position of the comb tooth unit 40 can change as the rotating disc 612-1 rotates.

[0062] The base 70 is arranged at the bottom of the dust bucket 10, including a chassis 71, three rollers 72 and a roller stopper (not shown in the figure). The chassis 71 supports the dust bucket 10, the dust and gas separation unit 20, the electric blower unit 30, the comb unit 40 and the state conversion unit 60, and covers the bottom of the dust bucket 10 and the dust and gas separation unit 20. The roller 61 is installed under the chassis 71 for moving the vacuum cleaner 1000. The roller stopper is connected to the roller 61 to prevent the roller 61 from moving so that the position of the mobile vacuum cleaner 1000 is fixed. When the roller stopper is released, the user can push and pull the vacuum cleaner 1000 to make it move freely, and then absorb floating hair from different areas of space. An automatic driving mechanism can also be set inside the vacuum cleaner, so that the vacuum cleaner can automatically walk in the room, absorb floating hair from a wide space to purify the air, and return to the charging pile to charge itself at an appropriate time. Similar structures have been fully applied in sweeping robot products and will not be described in detail here.

[0063] like Figures 1 to 8 As shown, based on the above structure, the specific working process of the vacuum cleaner 1000 provided in this embodiment is as follows (taking the vacuum cleaner 1000 placed on the ground, the initial state is the retracted state S1, and the pet is a cat as an example):

[0064] First, the user presses the button 522b to compress the elastic member 623, so that the locking protrusion 622a withdraws from the limit bayonet B1 and enters the moving section 621a, thereby unlocking the upper rotating disk 612-1. Then, the user pushes the handle 614 in the clockwise direction while keeping the button 522b pressed. The handle 614 drives the upper and lower rotating disks 612 to rotate synchronously clockwise. During this process, the arc grooves 612a of the two rotating disks 612 synchronously contact and drive the upper and lower guide rods 43 of the comb unit 40 to move from the A1 end to the A2 end, and the comb unit 40 enters the extended state S2 from the retracted state S1. At the same time, the locking protrusion 622a moves along the moving section 621a to a position facing the limit bayonet B2. At this time, the button 522b is released, the elastic member 623 is reset and the locking protrusion 622a is pressed to the limit bayonet B2 to engage, the upper rotating disk 612-1 is locked, and the comb unit 40 is locked in the position as shown in FIG. Figure 1 , 3 The extended state S2 shown in (a) of ~6.

[0065] In the extended state S2, the comb teeth 41 extend outwards from the outlet 121, and the comb teeth 41 are firmly exposed relative to the outer surface of the dust bucket 10. When a cat rubs against it, the floating hairs are transferred from the hair layer to the comb teeth. During the process of the cat rubbing against the comb teeth 41, if the electric fan 32 is in the on state, an inhalation airflow is formed. In the external environment of the dust bucket 10, especially near the intake passage 15, which is the upstream of the inhalation airflow, the floating hairs that float into the air or are not clamped by the comb teeth will be carried by the inhalation airflow to form dirty air. The dirty air flows downstream along the intake passage 15 into the dust collection chamber of the dust bucket 10, and then flows into the dust-air separation unit 20. The dust-air separation unit 20 intercepts dirt such as hairs in the airflow to obtain clean air, and the clean air is discharged from the exhaust port 331 after passing through the downstream electric fan 32. In addition, when a cat rubs against it in the extended state S2, the electric fan 32 may not be turned on.

[0066] After the cat finishes rubbing and leaves, or after the grooming part has accumulated / held a certain amount of hairs, the user can use the hair scraping unit 50 to clean the comb teeth. First, turn on the electric fan 32 through the switch 34 or maintain the previous on state of the electric fan 32 to form an inhalation airflow. Then press the button 522b to compress the elastic member 623, so that the locking protrusion 622a exits from the limit bayonet B2 and enters the moving section 621a, unlocking the upper rotating disk 612-1. Next, while the user keeps pressing the button 522b, push the handle 614 in the counterclockwise direction. The handle 614 drives the upper and lower rotating disks 612 to rotate counterclockwise synchronously, and at the same time, the arc grooves 612a of the two rotating disks 612 are in contact with each other synchronously to drive the upper and lower guide rods 43 of the comb tooth unit 40 to move from the A2 end towards the A1 end, and the comb tooth unit 40 retracts relative to the hair scraping unit 50 (the outer surface of the outer barrel wall 12). During the retraction process, the hair scraping unit 5012 strips the hairs from the comb teeth 41 and scatters them in the air, so that the hairs enter the intake passage 15 with the inhalation airflow and flow into the dust-air separation unit 20. The dust-air separation unit 20 intercepts dirt such as hairs in the airflow to obtain a clean airflow, and the clean airflow is discharged from the exhaust port 331 after passing through the electric fan 32.

[0067] As the guide rod 43 moves from the A2 end to the A1 end, the comb tooth unit 40 changes from the extended state S2 as shown in (a) in Figure 1 、 3 ~6 to the retracted state S1 as shown in (b) in Figure 1 、 3 ~6, and the locking protrusion 622a moves to a position facing the limit bayonet B1. At this time, the user can release the button 522b, so that the locking protrusion 622a is pressed by the elastic member 623 into the limit bayonet B1 for engagement, locking the comb tooth unit 40 in the state as shown in Figure 1 、 3The retracted state S1 position shown in (a) of 0 to 6; the user can also push the handle 614 in the clockwise direction without releasing the button 522b, so that the comb tooth unit 40 returns to the extended state S2 again, and then release the button 522b in this state. That is, it is not locked in the retracted state S1, but only the comb tooth unit 40 is scraped and cleaned of hair by the hair scraping unit 50 during the retraction process, and the comb tooth unit 40 is only locked in the extended state S2.

[0068] Compared with walls, furniture, etc., the comb tooth unit 40 is more effective in cleaning floating hair (removing the floating hair in the hair layer), so it is more comfortable after rubbing, and the cat is more willing to rub. What the user sees is that the cat actively removes the floating hair from its body by rubbing against the vacuum cleaner 1000 and enjoys it.

[0069] When it is necessary to move the vacuum cleaner 1000 to other rooms, the user releases the roller stopper, and then can push and pull to move the vacuum cleaner 1000.

[0070] When it is necessary to stop the vacuuming work, the user can turn off the electric blower 32 (shutdown) through the switch 34.

[0071] When it is necessary to clean the dirt collected in the dust bucket 10, after shutting down, the user can first rotate and then lift the handle 332 to lift the electric blower unit 30, move the electric blower unit 30 together with the dust and gas separation unit 20 away from the dust bucket 10 from above, and then the dust and gas separation unit 20 can be unscrewed for cleaning, and the dust in the dust bucket 10 can be poured out from the upper bucket opening.

[0072] In addition, when it is necessary to store the vacuum cleaner 1000, the comb tooth unit 40 can also be locked in the retracted state S1 position according to the foregoing method, which not only reduces the volume but also protects the comb teeth.

[0073] The above embodiments are only illustrative examples of the technical solutions of the present invention. The vacuum cleaner involved in the present invention is not limited to the content described in the above embodiments, but is subject to the scope defined by the claims. Any modification, supplement or equivalent replacement made by those skilled in the art in the field of the present invention based on this embodiment is within the scope protected by the claims of the present invention.

[0074] For example, in the above embodiments, the shape of the dust bucket is cylindrical. In the present invention, the shape of the dust bucket is not limited to this, and it can also be arc-shaped, cubic, polyhedral or other shapes (or composite shape structures such as polyhedrons containing arc surfaces).

[0075] In the present invention, the dust and gas separation unit can be any separation / filtration structure capable of intercepting dirt in dirty air, such as filter screens, filter papers, HEPA, or filter components with both filtering performance and dirt adhesion performance, etc.

[0076] In the above embodiments, the comb tooth units are arranged on the left and right sides of the air inlet channel. In the present invention, according to the shape of the air inlet channel, the comb tooth units can also be arranged in a circle around the periphery of the air inlet channel, or arranged near three sides of the air inlet channel, or only near one side, etc.

[0077] In the above embodiments, the comb tooth units are arranged on the left and right sides of the air inlet channel. In the present invention, the connecting plate can also only play a role of supporting and limiting, and each group of comb teeth can expand and contract relative to the connecting plate synchronously or asynchronously.

[0078] In the above embodiments, a group of through holes are continuous with each other to form a continuous long strip-shaped opening. In the present invention, a group of through holes can also be formed by a series of non-continuous (spaced apart from each other) holes. For example, one hole corresponds to one tooth, and the non-hollowed areas between the holes are not hollowed out. These non-hollowed spaced areas on the barrel body also belong to the hair scraping unit. Or one through hole corresponds to a cluster of comb teeth. The shapes and sizes of these through holes can be the same or different, as long as they can allow the comb teeth to extend and retract.

[0079] In the above embodiments, the comb tooth moving chamber is fixedly connected to the dust bucket, and the plane where the front side opening of the comb tooth moving chamber is located does not exceed the outer surface of the dust bucket. In the present invention, the comb tooth moving chamber can be detachably arranged on the dust bucket. The plane where the front side opening of the comb tooth moving chamber is located can also protrude outward relative to the outer surface of the dust bucket. At this time, the front side opening of the comb tooth moving chamber can be used as the comb tooth outlet, and the edge and surrounding area of the front side opening form the hair scraping unit.

[0080] In the above embodiments, the hair scraping unit is the surface area of the dust bucket. In the present invention, the hair scraping unit can not be the surface area of the dust bucket, but the area corresponding to the comb teeth on the surface of other structures outside the dust bucket; the hair scraping unit can also be a scraper arranged to match and surround the comb teeth, and the driving mechanism contacts the scraper to drive the scraper to move back and forth relative to the comb tooth part. In addition, one hair scraping unit can correspond to one combing unit, or one hair scraping unit can correspond to several or all combing units. In addition, the comb teeth in the combing unit can completely retract relative to the hair scraping unit (not exposed after retraction) as in the embodiment, or can partially retract relative to the hair scraping unit (partially exposed).

[0081] In the above embodiments, the exhaust port is located at the upper part of the vacuum cleaner. In the present invention, the exhaust port can also be arranged in the middle or at the bottom of the vacuum cleaner, for example, on the side or at the bottom of the dust bucket.

[0082] In the above embodiments, the shapes, sizes, and tooth spacings of each group of comb teeth and each row of comb teeth are the same. In the present utility model, according to the pet grooming requirements, the shapes, sizes, and tooth spacings of each group of comb teeth and each row of comb teeth can also be set to be different. Moreover, the arrangement of the comb teeth is not limited to the vertical arrangement in the embodiments, and can also be various arrangement forms such as horizontal arrangement, inclined arrangement, circular area arrangement, cluster arrangement, etc. The shape of the teeth is not limited to circular, and can also be any other shape, and the cross-section is not limited to being perpendicular to the surface of the dust bucket, and can also be bent or inclined relative to the surface of the dust bucket. As long as it is suitable for grooming or collecting / catching floating hair.

[0083] In the above embodiments, the outer diameter of the upper rotating disk is larger than the outer diameter of the dust bucket. In the present utility model, the upper rotating disk can also be set to have an outer diameter smaller than or equal to the outer diameter of the dust bucket.

[0084] In the above embodiments, a locking mechanism is used to lock the comb tooth unit in two states: extended and retracted. In the present utility model, the locking mechanism can also only lock the comb tooth unit in the extended state and not lock it after retraction. As long as the comb tooth unit is not specifically driven, the comb tooth unit will not extend. In the present utility model, a locking mechanism can also not be provided. For example, the comb tooth unit is fixed in the extended state, and pets can stably rub their hair against it. The driving mechanism only connects and drives the hair scraping unit. In this way, although the comb tooth unit is fixed relative to the vacuum cleaner, during the movement of the hair scraping unit, the comb tooth unit can also extend outward and retract inward relative to the hair scraping unit.

[0085] In addition, the state conversion unit, the driving mechanism, and the locking mechanism are not limited to the structures described in the above embodiments, and any structure in the prior art that can achieve the corresponding functions can also be used. For example, the driving mechanism can include: an elastic member and a driving member; the elastic member abuts against the comb tooth unit along a certain direction F to make the comb tooth unit enter the extended or retracted state S1; the driving member (for example, a push-pull rod) pushes or pulls the comb tooth unit along the direction opposite to F to make the comb tooth unit enter the opposite state. The driving mechanism can include: a comb tooth moving chamber and a moving member; the comb tooth moving chamber is arranged on the dust bucket, accommodates the comb tooth unit, and corresponds to the positions of the extended and retracted states of the comb tooth unit. The moving member contacts the comb tooth unit and drives the comb tooth unit to move between the two state positions. The locking mechanism can include a limiting rod and a limiting groove opened on the driving mechanism or the comb tooth unit.

[0086] In addition, in the above embodiments, one driving mechanism contacts all the comb tooth units and can drive all the comb tooth units to act (extend, retract). In the present utility model, one or several driving mechanisms can also be provided for each comb tooth unit or hair scraping unit, so as to drive the corresponding comb tooth unit or the corresponding hair scraping unit to act in a divided area.

[0087] In addition, in the above embodiments, a rechargeable battery pack is used as the power supply, and the battery pack can be charged with a conventional adapter. In the present invention, a power cord assembly connected to the external power grid can also be adopted. After accessing / inserting into the external power grid, electrical energy can be obtained from the external power grid.

Claims

1. A vacuum cleaner capable of sucking up dirt from the air, characterized in that: include: A dust bin, the body of which is provided with at least one air inlet passage for letting in dirty air; A dust-gas separation unit, arranged in the dust barrel, for intercepting dirt in the dirty air; an electric blower unit, the inlet of which is connected to the dust and gas separation unit, and is used to generate an intake airflow to suck dirty air from the air inlet passage into the dust and gas separation unit; At least one group of comb units, mounted on the dust bucket and located near at least one of the air inlet channels, for pets to rub their fur; At least one set of shaving units, matched with the comb tooth unit, for removing hair from the comb tooth unit; At least one set of state conversion units, contacting the comb tooth unit or the shaving unit, so that the comb tooth unit is converted between an extended state and a retracted state; Wherein, in the extended state, the comb teeth of the comb tooth unit extend outward relative to the shaving unit to form a combing portion for rubbing the pet's hair; In the retracted state, the combing portion is retracted inwardly relative to the shaving unit.

2. The vacuum cleaner according to claim 1, characterized in that: in, There are a plurality of the air intake channels, and the plurality of the air intake channels are arranged at intervals, and the comb tooth unit is arranged near at least one side of each of the air intake channels.

3. The vacuum cleaner according to claim 1, characterized in that: in, In the comb tooth unit, a plurality of groups of comb teeth are arranged in a row along at least one longest side of the air intake passage, and the comb tooth unit further comprises a connecting plate connecting the plurality of groups of comb teeth.

4. The vacuum cleaner according to claim 1, characterized in that: in, The outer surface of the dust bucket is provided with at least one group of through holes, and the combing part is extended and retracted relative to the outer surface of the dust bucket along the through holes; The shaving unit is formed on the outer surface of the dust barrel in an area located at the edge of the through hole and nearby areas.

5. The vacuum cleaner according to claim 1, characterized in that: in, The state conversion unit comprises: a driving mechanism for driving the comb unit to retract into the retracted state or to extend into the extended state relative to the shaving unit, and a locking mechanism for locking the comb unit in the retracted or extended state position; The driving mechanism drives the comb teeth to move, and the shaving unit remains stationary; or, the driving mechanism drives the shaving unit to move, and the comb teeth remain stationary.

6. The vacuum cleaner according to claim 5, characterized in that: in, The scraping unit is a scraper that matches and is arranged around the comb unit. The driving mechanism is in contact with the scraper to drive the scraper to move back and forth relative to the comb unit.

7. The vacuum cleaner according to claim 5, characterized in that: in, The locking mechanism is in contact with the driving mechanism, and includes: a card slot, a pressing piece and an elastic piece; a limit slot is provided in the card slot; the pressing piece matches the card slot, and when the pressing piece is not pressed by external force, it is pushed by the elastic piece to fit with the limit slot, and the state of the comb tooth unit is locked.

8. The vacuum cleaner according to claim 5, Features: Wherein, the driving mechanism includes: an elastic member and a driving member; the elastic member abuts against the comb tooth unit or the shaving unit along a certain direction F to make the comb tooth unit enter an extended or retracted state; the driving member moves the comb tooth unit or the shaving unit along a direction opposite to F to make the comb tooth unit enter an opposite state.

9. The vacuum cleaner according to claim 5, characterized in that: in, The driving mechanism comprises: a comb tooth moving chamber and a moving member; the comb tooth moving chamber is arranged on the dust bucket, accommodates the comb tooth unit, and allows the comb tooth unit to move between two states and positions, the moving member contacts the comb tooth unit, and drives the comb tooth unit to move between two states; The upper end and the lower end of the comb unit are respectively provided with guide rods; The moving part includes: two rotating disks covered at the top and bottom of the comb tooth moving chamber, at least one group of arc grooves are arranged on the two rotating disks corresponding to each other, the arc grooves are not concentric with the rotating disks, and the upper and lower end guide rods of each comb tooth unit are respectively inserted into the arc grooves of the two rotating disks.

10. The vacuum cleaner according to claim 1, characterized in that: in, The electric blower unit comprises: an electric blower, and a power supply for supplying power to the electric blower; The vacuum cleaner also includes a movable base provided at the bottom of the dust bucket and having a roller and a roller stopper.

Images