Vacuum cleaner attachment and vacuum cleaner

Abstract

The present application relates to a kind of dust catcher attachment and dust catcher.The dust catcher attachment includes: shell;Air duct, the air duct is located in the inside of the shell, the air duct is used to be connected with vacuum source;Pushing assembly, the pushing assembly is connected with the shell, the suction inlet that is communicated with the air duct is equipped on the pushing assembly, the suction inlet can be suctioned under negative pressure when the air duct is connected with the vacuum source, and the pushing assembly can move to adjust the vacuum degree of the suction inlet.The dust catcher attachment can adjust suction degree when hair suction is carried out, and is suctioned with proper suction degree, to alleviate pet pain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a dust cleaner accessory and a dust cleaner. BACKGROUND

[0002] With the continuous development of science and technology, the dust cleaner begins to enter our life. The use of the dust cleaner for cleaning can reduce the labor cleaning burden, improve the cleaning efficiency, and the cleaning effect is also good. Therefore, the dust cleaner gradually becomes an indispensable auxiliary tool for people when cleaning. In the related art, some accessories are often used with the dust cleaner to clean different cleaning objects. For example, some dust cleaner accessories are suitable for cleaning carpets, some dust cleaner accessories are suitable for cleaning floors, and some dust cleaner accessories are suitable for cleaning pet hair. In the related art, some dust cleaner accessories can only clean at a fixed cleaning strength when performing suction cleaning, and cannot better adapt to different cleaning environments. SUMMARY

[0003] Therefore, the present application provides a dust cleaner accessory, which can adjust the suction strength when performing suction cleaning, so as to better adapt to different cleaning environments.

[0004] The dust cleaner accessory comprises:

[0005] a shell;

[0006] an air duct, which is located in the interior of the shell and is used to be connected with a vacuum source;

[0007] a pushing assembly, which is connected with the shell and is provided with a suction inlet in communication with the air duct, the suction inlet being capable of negative pressure adsorption when the air duct is connected with the vacuum source, and the pushing assembly being capable of moving to adjust the vacuum degree of the suction inlet.

[0008] In one of the embodiments, a slot hole is arranged on the pushing assembly and penetrates through the thickness direction, the slot hole being in communication with the air duct when the pushing assembly moves to a predetermined position, and external airflow being capable of entering the air duct through the slot hole.

[0009] In one of the embodiments, the pushing assembly extends into the shell, and external airflow is capable of entering the air duct through the slot hole and flowing through the gap between the shell and the pushing assembly when the pushing assembly moves to a predetermined position.

[0010] In one of the embodiments, the dust cleaner accessory further comprises a carding plate, which is connected with the shell and is provided with a plurality of carding needles arranged thereon.

[0011] In one of the embodiments, the pushing assembly comprises a pushing member and a first pressing structure, the first pressing structure comprises a first button, the first button is fixedly connected with the pushing member, the slot hole and the suction port are arranged on the pushing member, the first button is arranged in the shell, when the pushing assembly moves to a predetermined position, external airflow can enter the slot hole through the gap between the shell and the first button and then flow into the air duct.

[0012] In one of the embodiments, the slot hole extends along the moving direction of the pushing assembly, when the pushing assembly moves, the slot hole gradually enters the range of the air duct and communicates with the air duct.

[0013] In one of the embodiments, a plurality of slot holes are arranged at intervals along the moving direction of the pushing assembly, when the pushing assembly moves, a plurality of slot holes enter the range of the air duct and communicate with the air duct in turn.

[0014] In one of the embodiments, the pushing member comprises a pushing plate, the pushing plate is provided with a through slot and the suction port, the comb needle passes through the through slot, in the grooming mode, the pushing member moves to the comb needle exposed through the through slot; in the cleaning mode, the pushing member moves to the pushing plate shielding the outer end of the comb needle.

[0015] In one of the embodiments, the through slot is in a strip shape, a plurality of comb needles pass through each through slot, and a plurality of comb needles are arranged in a column along the extension direction of the through slot, the extension direction of the through slot is arranged at an angle with the movement direction of the comb needle in the grooming mode.

[0016] In one of the embodiments, the extension direction of the through slot is perpendicular to the movement direction of the comb needle in the grooming mode.

[0017] In one of the embodiments, the outer end of the comb needle is in a curved surface shape.

[0018] In one of the embodiments, the outer end of the comb needle is in a spherical or ellipsoidal shape.

[0019] In one of the embodiments, the diameter d of the comb needle ranges from 0.8mm to 1.2mm.

[0020] In one of the embodiments, a comb needle glue layer is further included, the comb needle glue layer is fixedly connected with the comb needle plate, and the comb needle is connected with the comb needle glue layer.

[0021] In one of the embodiments, the comb needle is provided with a first limiting portion and a second limiting portion distributed along the axial direction, the first limiting portion and the second limiting portion are protruded from the peripheral surface of the comb needle along the radial direction, and the comb needle glue layer is clamped between the first limiting portion and the second limiting portion.

[0022] In one of the embodiments, the comb needle is connected with the comb needle plate through an elastic part; or the comb needle has elasticity and can stretch and contract along the length direction of itself.

[0023] In one of the embodiments, the suction inlet is located in the central area of the push plate, and a plurality of the through grooves are arranged around the suction inlet.

[0024] In one of the embodiments, the pusher further comprises a convex plate integrally connected with the push plate and protruding towards the inside of the cleaner accessory, and the convex plate is provided with an opening, and the air duct and the suction inlet are in communication with the opening.

[0025] In one of the embodiments, a sealing member is further provided and is buckled with the air duct, the sealing member seals between the housing and the inlet of the air duct and between the convex plate and the inlet of the air duct, and the sealing member is located outside the opening.

[0026] In one of the embodiments, the inlet of the air duct is embedded in the sealing member, and the sealing member extends along the edge of the inlet of the air duct.

[0027] In one of the embodiments, the outer side wall of the sealing member abutting the convex plate is provided with a protruding rib, and the rib abuts the area of the convex plate located on both sides of the opening.

[0028] In one of the embodiments, when the pusher moves, the convex plate slides along the rib and abuts the rib all the time.

[0029] In one of the embodiments, the housing is provided with a recess recessed towards the inside of the cleaner accessory, and the side wall of the recess is fitted to the sealing member, and the fitting part is arc-shaped.

[0030] In one of the embodiments, when the pusher moves to the limit position, the opening is located within the range of the inlet of the air duct.

[0031] In one of the embodiments, the housing comprises an upper housing and a lower housing, the push plate and the comb needle are located on the side close to the lower housing, the convex plate is provided with a protruding part protruding into the upper housing, the slot hole is arranged on the protruding part, and when the pusher moves to the lower limit position, the end part of the protruding part is located in the upper housing.

[0032] In one of the embodiments, the side of the inlet of the air duct close to the lower housing is inclined towards the outside of the opening.

[0033] In one of the embodiments, the first button is provided with an elastic member for driving the pusher to reset between the housing.

[0034] In one of the embodiments, the pushing assembly comprises a pushing member and a second pressing structure, the second pressing structure is in contact with the pushing member, the slot and the suction port are arranged on the pushing member, the second pressing structure is arranged in the shell, the second pressing structure is used to drive the pushing member to move, and the second pressing structure can lock the pushing member at the current position, when the pushing member moves to the predetermined position, external airflow can enter the slot through the gap between the shell and the second pressing structure and then flow into the air duct.

[0035] In one of the embodiments, the second pressing structure comprises a second limiting sleeve, a second button, a second elastic part and a connecting member, the second elastic part is arranged between the pushing member and the shell, so that the pushing member elastically abuts against the connecting member, the second button is arranged in the inner cavity of the second limiting sleeve, the second limiting sleeve is used to limit the connecting member, the second button can drive the connecting member to slide along the axial direction of the second limiting sleeve, when the connecting member moves away from the second limiting sleeve, the connecting member can be rotated to adjust the position of the connecting member extending towards the pushing member.

[0036] In one of the embodiments, the outer wall of the connecting member is provided with a protrusion, the end of the protrusion close to the second button is provided with a first inclined surface, the end of the second button close to the connecting member is provided with a plurality of sawteeth which are continuously distributed along the circumferential direction, the first inclined surface can be engaged with the sawteeth, the outer wall of the second button is further provided with a sliding block, the side wall of the inner cavity is provided with a sliding groove which is in sliding connection with the sliding block, the second limiting sleeve is further provided with a plurality of clamping grooves which are distributed along the circumferential direction, the depth of each clamping groove is different, the clamping grooves extend along the axial direction of the second limiting sleeve and are in communication with the sliding groove, the end of the second limiting sleeve close to the connecting member is further provided with a second inclined surface, the second inclined surface can be in close contact with the first inclined surface.

[0037] In the first state, the protrusion is clamped in the clamping groove, and the first inclined surface is partially engaged with the sawteeth;

[0038] In the second state, the second button drives the connecting member to move along the axial direction of the second limiting sleeve until the protrusion exits the clamping groove, the connecting member is rotated relative to the second button, so that the first inclined surface is completely engaged with the sawteeth, and the first inclined surface is in close contact with the second inclined surface;

[0039] In the third state, under the driving of the second elastic part, the first inclined surface slides along the second inclined surface, so that the protrusion slides into the adjacent clamping groove.

[0040] In one of the embodiments, the pushing assembly comprises a pushing member and a third pressing structure arranged in the housing, the third pressing structure is in contact with the pushing member, the slot is arranged on the third pressing structure, the suction port is arranged on the pushing member, the third pressing structure is used to drive the pushing member to move, and the third pressing structure can lock the pushing member at the current position, when the pushing member moves to the predetermined position, external airflow can enter the slot through the gap between the housing and the third pressing structure and then flow into the air duct.

[0041] In one of the embodiments, the third pressing structure comprises a third button, a third elastic part and a third limiting sleeve, the third elastic part is arranged between the pushing member and the housing to make the pushing member elastically abut against the third button, the third button is arranged in the inner cavity of the third limiting sleeve, the slot is arranged on the third button, the third button comprises a first tooth part, the third limiting sleeve comprises a second tooth part capable of engaging with the first tooth part, the third button can move relative to the third limiting sleeve, and when the third button moves to the position where the first tooth part is separated from the second tooth part, the third button can be rotated to adjust the position of the pushing member extending towards the pushing member.

[0042] In one of the embodiments, the third button comprises a pressing surface used to press the pushing member, different areas of the pressing surface press the pushing member when the third button is rotated; the pressing surface is curved, or the pressing surface comprises a plurality of planes connected in sequence and having an included angle.

[0043] The above-mentioned dust collector accessory can be cleaned by suction through the suction port, and the vacuum degree of the suction port can be adjusted when the pushing assembly moves during the suction cleaning process, so that the pushing assembly can move according to different cleaning environments to adjust the vacuum degree of the suction port and change the suction force of the suction port. For example, if the amount of the object to be cleaned is small, the pushing assembly can be moved to reduce the vacuum degree of the suction port and thus reduce the suction force of the suction port and appropriately reduce the cleaning strength; if the amount of the object to be cleaned is large, the pushing assembly can be moved to appropriately increase the vacuum degree of the suction port and thus increase the suction force of the suction port and appropriately increase the cleaning strength.

[0044] The application further provides a dust collector comprising the above-mentioned dust collector accessory.

[0045] The above-mentioned dust collector can adjust the suction strength when performing suction cleaning by applying the above-mentioned dust collector accessory, so that the suction is performed with appropriate suction strength, thereby better adapting to different cleaning environments. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1The overall structure of the pet brush in one embodiment of the present application is shown in the figure;

[0047] Figure 2 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The cross-sectional view of the pet brush in the grooming mode is shown in the figure;

[0048] Figure 3 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The cross-sectional view of the pet brush in the cleaning mode is shown in the figure;

[0049] Figure 4 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The exploded view of the pet brush is shown in the figure;

[0050] Figure 5 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The structure of the pusher of the pet brush is shown in the figure;

[0051] Figure 6 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The structure of the air duct and the sealing member of the pet brush is shown in the figure;

[0052] Figure 7 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The structure of the sealing member of the pet brush is shown in the figure;

[0053] Figure 8 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The bottom view of the pet brush is shown in the figure;

[0054] Figure 9 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The structure of the pusher, the sealing member and the air duct of the pet brush is shown in the figure;

[0055] Figure 10 The overall structure of the pet brush in one embodiment of the present application is shown in the figure; Figure 1 The cross-sectional view of the upper shell and the pusher of the pet brush in the cleaning mode is shown in the figure;

[0056] Figure 11 The structure of the second pressing structure in another embodiment of the present application is shown in the figure;

[0057] Figure 12 The structure of the slot hole on the extension in one embodiment of the present application is shown in the figure;

[0058] Figure 13 The position of the slot hole on the extension when the pusher is not pushed out in one embodiment of the present application is shown in the figure;

[0059] Figure 14 The position of the slot hole on the extension when the pusher is not pushed out in one embodiment of the present application is shown in the figure;

[0060] Figure 15 The structure of the third pressing structure in another embodiment of the present application is shown in the figure;

[0061] Figure 16 Fig. 3 is a structural schematic view of a third button in a third pressing structure; Figure 15 Fig. 3 is a structural schematic view of a third button in a third pressing structure;

[0062] Figure 17 Fig. 3 is a structural schematic view of a third button in a third pressing structure; Figure 15 Fig. 3 is a structural schematic view of a third button in a third pressing structure.

[0063] Reference signs:

[0064] upper shell 110, recess 111, notch 112, accommodating cavity 113, sliding groove 114, lower shell 120;

[0065] comb needle plate 210, comb needle glue layer 220, through hole 221, comb needle 230, first limiting portion 231, second limiting portion 232, ball head 233;

[0066] push plate 310, through slot 311, suction port 312, convex plate 320, opening 321, extension 322, first slot hole 3221;

[0067] air duct 400, protruding block 410, inclined portion 420;

[0068] sealing member 500, insertion slot 510, clamping groove 520, rib 530, first sealing portion 540, second sealing portion 550, third sealing portion 560;

[0069] first button 600;

[0070] handle 710, main body structure 720;

[0071] second limiting sleeve 810, clamping groove 811, second inclined surface 812, second button 820, sawtooth 821, sliding block 822, connecting member 830, protruding block 831, first inclined surface 8311;

[0072] third button 910, third slot hole 911, first tooth portion 912, connecting column 913, pressing block 914, pressing surface 9141, third limiting sleeve 920, second tooth portion 921, protruding portion 922, groove 9221, inner cavity 923, spring 930. DETAILED DESCRIPTION

[0073] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below. In other instances, well-known methods, procedures and components have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0074] In the description of the application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0075] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0076] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0078] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0079] See Figures 1 to 3 , Figure 10 ,as well as Figures 12 to 14 , Figure 1 This is a schematic diagram of the overall structure of a pet brush according to one embodiment of the present invention. Figure 2 for Figure 1 A cross-sectional view of a pet brush in grooming mode. Figure 3 for Figure 1 A cross-sectional view of the pet brush in cleaning mode. Figure 10 for Figure 1 A cross-sectional view of the upper shell and pusher of the pet brush in cleaning mode. Figure 12 This is a schematic diagram of the structure of the slot hole on the protruding part in one embodiment of the present invention. Figure 13 This is a schematic diagram showing the position of the slot hole on the protrusion when the pusher is not pushed out, according to one embodiment of the present invention. Figure 14 This is a schematic diagram showing the position of the slot on the protruding part when the pushing member is not pushed out in one embodiment of the present invention. The vacuum cleaner accessory provided in one embodiment of the present invention includes a housing, an air duct 400, and a pushing assembly. The air duct 400 is disposed inside the housing and can be connected to a vacuum source. The comb plate 210 and the pushing assembly are both connected to the housing. The pushing assembly has a suction port 312, which communicates with the air duct 400. When the air duct 400 is connected to the vacuum source, the suction port 312 can perform negative pressure adsorption. When the pushing assembly moves, it can change the vacuum level during suction, thereby changing the suction force for cleaning. Therefore, the vacuum level of the suction port 312 can be adjusted by moving the push component according to different cleaning environments, thereby changing the suction force of the suction port 312. For example, if there is less material to be cleaned, the vacuum level of the suction port 312 can be reduced by moving the push component, thereby reducing the suction force of the suction port 312; if there is more material to be cleaned, the vacuum level of the suction port 312 can be appropriately increased by moving the push component, thereby increasing the suction force of the suction port 312 and improving the suction efficiency.

[0080] Specifically, the shell includes an upper shell 110 and a lower shell 120, which are fixedly connected. The air duct 400 is arranged in the cavity between the upper shell 110 and the lower shell 120, and is fixedly connected with the upper shell 110 and the lower shell 120. In some embodiments, the upper shell 110 and the lower shell 120 can be connected by threaded fasteners. In other embodiments, the upper shell 110 and the lower shell 120 can be connected by buckling. Similarly, the air duct 400 can be fixedly connected with the upper shell 110 and the lower shell 120 by buckling.

[0081] Specifically, in some embodiments, the push assembly includes a slot hole extending through the thickness of the push assembly. When the push assembly moves to the predetermined position, the slot hole is in communication with the air duct 400, and external airflow can enter the air duct 400 through the slot hole. At this time, if suction is performed, external airflow can enter the air duct 400 through the slot hole. At this time, if suction is performed, part of the external airflow enters from the suction inlet 312 and flows into the air duct 400, and part of the external airflow flows into the air duct 400 from the slot hole. That is, only part of the suction force exerted by the vacuum source is used for effective suction of the object to be cleaned. At this time, the suction force exerted on the object to be cleaned is smaller than when the push member is not pushed. Further, in some embodiments, the push assembly extends into the shell. When the push assembly moves to the predetermined position, external airflow can enter through the gap between the shell and the push assembly and flow through the slot hole into the air duct 400.

[0082] In some embodiments, the cleaner accessory is a pet brush, and the object to be cleaned is the pet's hair. The cleaner accessory can comb and clean the pet's hair. Specifically, the cleaner accessory further includes a comb needle plate 210, and a plurality of comb needles 230 are arranged on the comb needle plate 210. The pet's hair can be combed by the comb needles 230. When the air duct 400 is connected with the vacuum source, the suction inlet 312 can perform negative pressure adsorption to suction and collect the combed hair. When the push assembly moves, the vacuum degree during suction can be changed, thereby changing the suction force exerted on the pet's body. Therefore, the push assembly can be moved according to the pain exhibited by the pet, thereby adjusting the vacuum degree of the suction inlet 312 and changing the suction force of the suction inlet 312. For example, if the pet exhibits obvious pain, the push assembly can be moved to reduce the vacuum degree of the suction inlet 312, thereby reducing the suction force of the suction inlet 312 and alleviating the pain of the pet. If the pet does not exhibit obvious pain, the push assembly can be moved to appropriately increase the vacuum degree of the suction inlet 312, thereby increasing the suction force of the suction inlet 312 and improving the suction efficiency. In addition, the vacuum degree can also be adjusted according to the breed, hair shedding period, and age of the pet. For example, if the pet is a long-haired pet, the vacuum degree of the suction inlet 312 can be appropriately increased, thereby increasing the suction force of the suction inlet 312 and improving the suction efficiency. Similarly, if the pet is currently in the hair shedding period, the vacuum degree of the suction inlet 312 can be appropriately increased. If the pet is older and has longer hair, the vacuum degree of the suction inlet 312 can be appropriately increased.

[0083] In some embodiments, the dust cleaner attachment of the present application is suitable for cleaning a carpet; in some other embodiments, the dust cleaner attachment of the present application is suitable for cleaning a floor. For the purpose of description and understanding, the following embodiments are described with respect to a pet hair brush suitable for cleaning pet hair. The vacuum level adjustment structure of other types of dust cleaner attachments is similar to that of the pet hair brush.

[0084] Specifically, in some embodiments, the pushing assembly comprises a pushing member and a first pressing structure, the first pressing structure comprises a first button 600, the pushing member is fixedly connected with the first button 600, and the first button 600 is arranged in the housing. The first slot hole 3221 and the suction port 312 are both arranged on the pushing member. Specifically, the pushing member comprises an extension 322 extending into the housing, and the extension 322 is provided with the first slot hole 3221 penetrating through the thickness direction of the extension 322. When the pushing assembly is moved to a predetermined position, the first slot hole 3221 is in communication with the air duct 400, and external airflow can enter from the gap between the upper housing 110 and the first button 600, and then flow into the air duct 400 through the first slot hole 3221. Referring to Figure 4 , Figure 4 For Figure 1 the exploded view of the pet hair brush. Specifically, the upper housing 110 is provided with a recessed portion 111 recessed towards the interior of the pet hair brush, and the first button 600 is mounted in the recessed portion 111. When it is necessary to push out the pushing member, the first button 600 only needs to be pressed. When the first button 600 is not pressed, the pushing member is not pushed out, and the extension 322 and the first slot hole 3221 arranged thereon are located in the recessed portion 111 on the upper housing 110 (as shown in the position), at this time, if suction is performed, the airflow will all enter from the suction port 312 and flow into the air duct 400, that is, the suction force exerted by the vacuum source is all used for effective suction of pet hair. Figure 13 When the first button 600 is pressed, the pushing member is pushed out, and the extension 322 and the first slot hole 3221 arranged thereon will gradually exit the recessed portion 111 (as shown in the position), at this time, if suction is performed, the airflow will enter from the first slot hole 3221 and the suction port 312, and then flow into the air duct 400, that is, the suction force exerted by the vacuum source is partially used for effective suction of pet hair. Figure 14When the pusher is pushed to the predetermined position, at least part of the first slot hole 3221 enters the range of the air duct 400 and communicates with the air duct 400, at this time, if suction is performed, part of the external airflow enters from the suction port 312 and flows into the air duct 400, and part of the airflow enters from the gap between the first button 600 and the recess 111 and flows into the air duct 400 from the first slot hole 3221, that is, the suction force of the vacuum source is only partially used for effective suction of pet hair, at this time, the suction force applied to the pet body is smaller than that when the pusher is not pushed, and the pet's pain will be lighter. Therefore, in use, if the pet shows obvious discomfort, the force of pressing the first button 600 can be increased to push the pusher out more, so that the suction force of the vacuum source is less used for effective suction, thereby reducing the suction force applied to the pet body and reducing its pain.

[0085] Specifically, in some embodiments, the first slot hole 3221 extends along the moving direction of the pusher, and when the pusher moves, the first slot hole 3221 gradually enters the range of the air duct 400 and communicates with the air duct 400. Alternatively, the extension direction of the first slot hole 3221 can also form an angle with the pushing direction of the pusher, that is, the first slot hole 3221 is inclined. In some embodiments, a plurality of first slot holes 3221 can be provided on the extension portion 322, the plurality of first slot holes 3221 all extend along the moving direction of the pusher, and the plurality of first slot holes 3221 are arranged in a direction perpendicular to the pushing direction, and when the pusher is pushed, the plurality of first slot holes 3221 simultaneously exit the recess 111. Alternatively, the plurality of first slot holes 3221 can also be arranged in the moving direction of the pusher, and under the angle shown in the drawings, that is, the plurality of first slot holes 3221 are arranged in an up-down direction, and when the pusher is pushed, the plurality of first slot holes 3221 exit the recess 111 in sequence, the more the pusher is pushed out, the more the number of first slot holes 3221 entering the range of the air duct 400. In addition, the shape of the first slot hole 3221 can be a strip as shown in the drawings, or other shapes, for example, it can also be circular, oval, square, triangular, etc.

[0086] Referring to Figures 1 to 3The pushing member includes a pushing plate 310, and the pushing plate 310 is provided with a through slot 311 and the aforementioned suction port 312, and the bristles 230 pass through the through slot 311. The pet brush has two modes, namely a combing mode and a cleaning mode. In the combing mode, the pushing member is moved to expose the bristles 230 through the through slot 311; in the cleaning mode, the pushing member is moved to block the outer end of the bristles 230 so that the suction port 312 can perform negative pressure adsorption. The bristles 230 pass through the through slot 311 provided on the pushing plate 310, so when the pushing member moves relative to the bristles 230, the through slot 311 provided on the pushing plate 310 will also move relative to the bristles 230. In the combing mode, when the pushing member is moved to expose the bristles 230 through the through slot 311, the pet hair can be combed, and the pet hair adhered to the clothes of the user can also be cleaned; in the cleaning mode, when the pushing member is moved to the outer end of the bristles 230, the hair wound on the bristles 230 during the combing process can be separated from the bristles 230 and accumulated at the end of the pushing plate 310 during the movement of the pushing plate 310 relative to the bristles 230, and in this process, the hair does not need to be manually removed, which is time-saving and labor-saving. The suction port 312 can also perform negative pressure adsorption, and the hair accumulated at the end of the pushing plate 310 can be sucked into the air duct 400 for collection. In addition, in the cleaning mode, other objects other than hair can also be adsorbed and cleaned, such as sofas or table surfaces, which can realize one brush with multiple uses and have a wide range of application scenarios.

[0087] The bristles 230 can be made of steel needles. Preferably, a plurality of bristles 230 are uniformly arranged on the bristle plate 210, so that when the hair is combed, the stress on each bristle 230 is relatively uniform, and some of the bristles 230 are not easy to bend due to excessive stress. Preferably, the diameter d of the bristle 230 is in the range of 0.8mm≤d≤1.2mm, and the bristle 230 is designed to be relatively thick, so that it has higher strength and is not easy to deform and bend during use, and is also not easy to scratch the pet and the operator. The vacuum source can be a vacuum pump or a similar component.

[0088] Referring to Figure 1 and Figure 8 , Figure 8 for Figure 1The bottom view of the pet brush. Preferably, in some embodiments, the push plate 310 is provided with a plurality of through-slots 311, each of which is in the shape of a strip, and a plurality of bristles 230 are passed through each of the through-slots 311, the plurality of bristles 230 are arranged in a single column along the extension direction of the through-slot 311, and the extension direction of each of the through-slots 311 is arranged at an angle with the movement direction of the bristles 230 in the grooming mode. The movement direction of the bristles 230 is the direction of the bristles 230 relative to the hair during use, and the extension direction of the through-slot 311 is the length direction thereof. The entire pet brush comprises two parts, a handle 710 and a main body structure 720, the air duct 400 is mainly distributed in the area of the handle 710, and the push member and the bristle plate 210 and other structures are distributed in the area of the main body structure 720. When using the pet brush, the user holds the handle 710 and pushes the pet brush, and the pushing direction is the direction of the bristles 230 relative to the hair. In this way, when grooming, since there is only one column of bristles 230, if the bristles 230 are deformed during movement, the bristles 230 will be blocked by the slot wall of the through-slot 311 when the deformation reaches a certain degree, that is, the slot wall of the through-slot 311 can limit the deformation of the bristles 230 in the movement direction, so that the bristles 230 are not easy to bend, and the invalid grooming caused by excessive deformation of the bristles 230 is reduced. Preferably, the extension direction of each of the through-slots 311 is perpendicular to the movement direction of the bristles 230 in the grooming mode. Figure 8 At the angle shown, the pushing direction, i.e. the movement direction of the bristles 230, is usually the up-down direction, and the extension direction of the through-slot 311 is the left-right direction. Of course, in other embodiments, the included angle between the extension direction of each of the through-slots 311 and the movement direction of the bristles 230 in the grooming mode can also be 60° or 75°, etc.

[0089] Referring to Figure 1 and Figure 4 , preferably, in some embodiments, the outer end of the bristle 230 is in the shape of a curved surface, and the outer end here refers to the end of the bristle 230 that can be exposed to the outside, i.e. the end that contacts the fur of the pet. After being arranged in the shape of a curved surface, it is not easy to scratch the pet or the user. Further, in some embodiments, the outer end of the bristle 230 comprises a ball head 233, which is in the shape of a sphere or an ellipsoid. In this way, during grooming, the ball head 233 can also serve as a massage ball to massage the pet.

[0090] Referring to Figures 2 to 4 and Figure 8In some embodiments, a comb needle adhesive layer 220 is also included. The comb needle adhesive layer 220 is fixedly connected to the comb needle plate 210, and the comb needle 230 is connected to the comb needle adhesive layer 220. Specifically, the comb needle adhesive layer 220 is made of soft adhesive. The comb needle adhesive layer 220 can be bonded and fixed to the comb needle plate 210, and the comb needle 230 can be fixed to the comb needle adhesive layer 220 by bonding or snapping. Because the comb needle adhesive layer 220 itself has a certain degree of flexibility, the root of the comb needle 230 installed on it can have a certain amount of movement, and the comb needle 230 is not easy to break due to excessive pulling during the combing process. Furthermore, because the comb needle adhesive layer 220 connected to the root of the comb needle 230 has a certain degree of flexibility, during the combing process, the root of the comb needle 230 can move along the extension direction of the through groove 311 (i.e., Figure 8 The comb plate 210 is equipped with multiple through holes 221, and the comb needles 230 are provided with a first limiting part 231 and a second limiting part 232 distributed axially. Both the first limiting part 231 and the second limiting part 232 protrude radially from the circumferential surface of the comb needles 230, and the comb needle adhesive layer 220 is engaged between the first limiting part 231 and the second limiting part 232. Preferably, the comb needle adhesive layer 220 can be made of antibacterial silicone to reduce the growth of internal bacteria. Further, the comb needle adhesive layer 220 can be made of medical silicone. Alternatively, in some embodiments, an ultraviolet germicidal lamp can be installed on the comb plate 210, and the user can choose to turn on the ultraviolet germicidal lamp to disinfect and sterilize the comb needle adhesive layer 220 connected to the comb plate 210 and the base of the comb needles 230.

[0091] In some embodiments, the comb needles 230 and the comb plate 210 are connected by an elastic part. A spring can be installed between the base of the comb needle 230 and the comb plate 210, and the spring can extend and retract along the length of the comb needle 230. This arrangement allows the comb needles 230 to undergo a certain degree of compression deformation when in contact with the pet, so as to better conform to the uneven areas such as the pet's joints, and can also provide cushioning, thereby reducing the pressure intensity of the comb needles 230 on the pet and reducing the pet's pain. Specifically, a spring can be provided between the base of each comb needle 230 and the comb plate 210, or the bases of multiple comb needles 230 can be connected to the same component, such as all being connected to a plate, which is connected to the comb plate 210 by a spring. Alternatively, in some embodiments, the comb needles 230 themselves are elastic, and the comb needles 230 can extend and retract along their own length.

[0092] See Figures 2 to 5 , Figure 5 for Figure 1A schematic diagram of the pusher component of the pet brush. In some embodiments, the suction port 312 is located in the central region of the push plate 310, and multiple through slots 311 are arranged around the suction port 312. As mentioned earlier, after combing is completed, the push plate 310 moves relative to the comb needles 230, separating the hair wrapped around the comb needles 230 during combing and accumulating it at the end of the push plate 310. If the suction port 312 is located in the central region of the push plate 310, the hair around it can be sucked in as much as possible, resulting in a better cleaning effect. Specifically, in some embodiments, the pusher component also includes a protruding plate 320 integrally connected to the push plate 310 and protruding into the interior of the pet brush. The protruding plate 320 is provided with an opening 321, and the air duct 400 and the suction port 312 are both connected to the opening 321. The hair sucked in from the suction port 312 can be sucked into the air duct 400 through the opening 321. The protruding plate 320 is generally hollow cuboid in shape, and the opening 321 is provided at one of its side plates. Of course, in other embodiments, a flexible hose may be provided to connect the suction port 312 to the inlet of the air duct 400.

[0093] See Figures 2 to 4 In some embodiments, the pet brush also includes a seal 500 inside. This seal 500 seals the entrance to the upper housing 110 and the air duct 400, as well as the entrance to the air duct 400 from the protruding plate 320. The seal 500 is snap-fitted to the air duct 400 and is located outside the opening 321. This prevents air leakage between the air duct 400 entrance and the opening 321, improving suction and preventing hair from easily entering the area outside the air duct 400 from gaps. The air duct 400 entrance connects to the opening 321, and its outlet connects to components such as a vacuum pump. In other embodiments, the seal 500 may be integrally injection molded with the air duct 400.

[0094] See Figure 4 , Figures 5 to 7 as well as Figure 9 , Figure 6 for Figure 1 A schematic diagram of the air duct and sealing components of a pet hair brush. Figure 7 for Figure 1 A schematic diagram of the sealing component of a pet hair brush. Figure 9 for Figure 1 A schematic diagram of the pusher, seal, and air duct of a pet hair brush.

[0095] In some embodiments, the seal 500 is embedded at the inlet of the air duct 400 and extends along the edge of the inlet of the air duct 400. In this way, the seal 500 wraps around the inlet of the air duct 400 and provides a better sealing effect. Specifically, the seal 500 is provided with inwardly recessed slots 510 distributed along the entire extension direction of the seal 500. The inlet of the air duct 400 is shaped to match the slots 510 and is inserted into the slots 510. The outer side wall of the inlet of the air duct 400 is provided with a plurality of protrusions 410, and the seal 500 is provided with a plurality of clamping grooves 520 at corresponding positions. Each protrusion 410 is clamped into a clamping groove 520.

[0096] In some embodiments, the outer side wall of the seal 500 adjacent to the protruding plate 320 is provided with protruding ribs 530, which abut against the areas on both sides of the opening 321 of the protruding plate 320 to enhance the sealing at the opening 321 and provide a better suction effect. Only the ribs 530 of the seal 500 are in contact with the pushing member, and the contact area is small. Therefore, during the movement of the pushing member, the ribs 530 can ensure the sealing between the inlet of the air duct 400 and the opening 321, but will not affect the movement of the pushing member. During the movement of the pushing member, the protruding plate 320 will slide along the ribs 530, and the two are always in abutment. Therefore, even if the opening 321 moves with the pushing member, the opening 321 and the inlet of the air duct 400 are not easy to leak air, that is, the sealing during movement can be achieved. In some embodiments, the side wall of the recess 111 of the shell is fitted to the seal 500, and the fitting part is arc-shaped. In this way, the sealing between the inlet of the air duct 400 and the shell can be enhanced to prevent hair from leaking out of the two to other positions in the shell.

[0097] Specifically, the sealing member 500 comprises a first sealing part 540, a second sealing part 550 and a third sealing part 560, which are integrated. The inner side wall of the third sealing part 560 is attached to the side wall of the recessed part 111, and the top wall of the third sealing part 560 is attached to the inner top wall of the upper shell 110. The second sealing part 550 is attached to the convex plate 320, and two second sealing parts 550 are respectively located on both sides of the opening 321. The rib 530 is arranged on the second sealing part 550. The first sealing part 540 has a gap with the push member, and the two are not in contact. The first sealing part 540 is attached to the structure arranged on the recessed part 111, for example, a baffle (not shown in the figure) is arranged on the side wall of the recessed part 111, and the first sealing part 540 is attached to the baffle. When the push member moves up and down, the convex plate 320 will move relative to the second sealing part 550, but during the movement, since the convex plate 320 is always in contact with the rib 530 arranged on the second sealing part 550, the sealing performance during the movement can be guaranteed. In the embodiment, the sealing between the air duct 400 entrance and the upper shell 110 at the entrance of the air duct 400 can be realized by the first sealing part 540 and the third sealing part 560, that is, the sealing of the upper area of the opening 321 can be realized, and the sealing between the air duct 400 entrance and the convex plate 320 at the entrance of the air duct 400 can be realized by the first sealing part 540, that is, the sealing of the two side areas of the opening 321 can be realized. Further, the lower ends of the two second sealing parts 550 can be connected together to form a fourth sealing part, and the sealing of the lower area of the opening 321 can be realized by the fourth sealing part, so as to realize all-around sealing.

[0098] The push member has two limit positions, one of which is the upper limit position shown in Figure 2 , at which the push member is not pushed out at all, and the length of the exposed comb needle 230 is the largest, so that the comb needle 230 can be used for combing hair; the other is the lower limit position shown in Figure 3 , at which the push member is completely pushed out, and the push plate 310 reaches the outer end of the comb needle 230 to shield the comb needle 230. At this time, when the pet brush is placed on the fur of the pet, the push plate 310 contacts the fur, and the comb needle 230 is not exposed. The hair combed before can be sucked into the opening 321 through the suction port 312, and then into the air duct 400, and then stored in the storage box or other components in communication with the air duct 400. Referring to Figures 2 to 4 , in some embodiments, when the push member moves to the limit position, the opening 321 is located within the entrance range of the air duct 400. Specifically, when the push member moves to the upper limit position shown in Figure 2 and the lower limit position shown in Figure 3 , the opening 321 does not exceed the entrance range of the air duct 400, so that good sealing performance can be guaranteed, and the suction effect is good.

[0099] Referring to Figures 2 to 5 and Figure 10In some embodiments, the protruding portion 322 is arranged on the protruding plate 320 and extends into the upper shell 110, and the end of the protruding portion 322 is located in the upper shell 110 when the pusher moves to the limit position. Specifically, the protruding portion 322 is arranged on the protruding plate 320 close to one side of the upper shell 110, i.e., the protruding portion 322 is arranged on the top of the protruding plate 320, and the upper shell 110 is provided with the aforementioned recess 111, the bottom wall of the recess 111 is provided with a gap 112, and the side wall of the recess 111 is provided with a sliding groove 114, and the protruding portion 322 extends into the recess 111 through the gap 112. When the pusher is pushed up and down, the protruding portion 322 will slide in the sliding groove 114, and the protruding portion 322 can be guided and limited by the sliding groove 114. As the pusher is pushed downward, the protruding portion 322 will gradually exit the recess 111, and when the pusher moves to the lower limit position shown in Figure 3 Thus, the upper end of the wind channel 400 at the inlet can be well sealed, and the hair sucked in through the opening 321 can all enter the wind channel 400.

[0100] In some embodiments, the side of the inlet of the wind channel 400 close to the lower shell 120 is inclined outward of the opening 321. Specifically, the inlet of the wind channel 400 includes an inclined portion 420, and the inclined portion 420 is inclined outward of the opening 321. Thus, the contact position of the inclined portion 420 and the protruding plate 320 can be as low as possible, i.e., as far away from the opening 321 as possible, and as the pusher is pushed downward, the opening 321 will gradually move downward, and the distance between the lower end of the opening 321 and the inclined portion 420 will become closer and closer, and when the pusher moves to the lower limit position shown in Figure 3 Thus, the lower end of the wind channel 400 at the inlet can be well sealed, and the hair sucked in through the suction port 312 can all enter the wind channel 400 through the opening 321.

[0101] Referring to Figures 1 to 4In some embodiments, the first button 600 is provided with an elastic member (not shown) between the first button 600 and the housing for driving the push member to reset. When it is needed to push the push member out, the first button 600 is simply pressed, and after the first button 600 is released, the push member will automatically reset, which is more convenient. Specifically, the first button 600 is installed in a recess 111 provided on the upper housing 110, and the bottom end of the first button 600 is fixedly connected with the top of the protruding plate 320. The protruding portion 322 extends into the recess 111, which divides the recess 111 into two parts, one of which forms a receiving cavity 113 for accommodating the elastic member, the top end of the elastic member is fixedly connected with the first button 600, and the bottom end is fixedly connected with the cavity bottom wall of the receiving cavity 113. When the first button 600 is pressed downward, the push member fixedly connected with the first button 600 is pushed out, at this time the elastic member will be compressed, when the first button 600 is released, the first button 600 and the push member move upward and reset under the driving of the elastic member. Of course, in other embodiments, a rotary knob can also be used, when the rotary knob is rotated, the push member moves. Any structure capable of achieving this function in the prior art can be used, which will not be described here.

[0102] When the pet brush is used, if the pet hair needs to be combed, and the pet hair is long, the first button 600 does not need to be pressed, the length of the exposed comb needle 230 is larger, which can facilitate the extension into the root of the hair, and the combing effect is better. If the pet hair is short, the first button 600 can be pressed appropriately to reduce the length of the exposed comb needle 230, of course, the first button 600 can also not be pressed directly for combing. The force of pressing the first button 600 can also be adjusted according to the length of the pet hair, for example, if the hair is long, the pressing force is small, so that the comb needle 230 is exposed as much as possible. The force of pressing the first button 600 can also be adjusted according to the current shedding period of the pet, for example, if the pet is currently in the shedding period, the first button 600 does not need to be pressed, or the pressing force is small, so that the comb needle 230 is exposed as much as possible, so as to have a better combing effect. The force of pressing the first button 600 can also be adjusted according to the age of the pet, for example, if the pet is older and the hair is longer, the first button 600 does not need to be pressed, or the pressing force is small, so that the comb needle 230 is exposed as much as possible, so as to have a better combing effect. When combing, the user holds the handle 710 and gently presses on the pet fur, and moves back and forth. After moving back and forth for a few times, if the comb needle 230 is wound with more hair, the first button 600 can be pressed to the second position, so that the length of the exposed comb needle 230 is reduced, and the combing effect is better. Figure 3The lower limit position is shown, and the comb 230 is completely hidden inside the push plate 310. During the extension of the push plate 310, the hair wound on the comb 230 is scraped and accumulated at the end of the push plate 310. Then, the vacuum pump and other components are opened, and the hair accumulated at the end of the push plate 310 is sucked into the air duct 400 from the suction port 312, and the cleaning of the hair is completed. In addition, when the push plate 310 is completely pushed out and the comb 230 is hidden, the area such as a sofa or a table top can also be cleaned by suction.

[0103] In some embodiments, multiple gears can be provided, and the distance of the pusher pushed out is different for each gear, and the vacuum degree is also different. After each press, the pusher will stop at the current position, and the position of the pusher will change only after the button is pressed again. Specifically, the vacuum degree provided by the vacuum source is 18 kpa, and the area of the suction port 312 is 1277 mm2. When the pusher is pushed out to reach the first gear, the total area of the first slot hole 3221 entering the range of the air duct 400 and communicating with the air duct 400 is 150 mm2, and the vacuum degree for effective suction at the suction port 312 decreases by 0.75 kpa. When the pusher is pushed out to reach the second gear, the total area of the first slot hole 3221 entering the range of the air duct 400 and communicating with the air duct 400 is 300 mm2, and the vacuum degree for effective suction at the suction port 312 decreases by 1 kpa. When the pusher is pushed out to reach the third gear, the total area of the first slot hole 3221 entering the range of the air duct 400 and communicating with the air duct 400 is 450 mm2, and the vacuum degree for effective suction at the suction port 312 decreases by 1.2 kpa. It can be seen that as the pusher is gradually pushed out, the total area of the first slot hole 3221 entering the range of the air duct 400 and communicating with the air duct 400 becomes larger and larger, the vacuum degree for effective suction at the suction port 312 becomes smaller and smaller, and correspondingly, the suction force applied to the body of the pet becomes smaller and smaller, and the pain of the pet will become lighter and lighter.

[0104] In some embodiments, the push assembly includes a pusher and a second pressing structure, the second pressing structure is in contact with the pusher, and the structure of the pusher is the same as the foregoing embodiments. The second pressing structure is arranged in the housing, the second pressing structure can drive the pusher to move, and at each gear, the second pressing structure can lock the pusher at the current position, and the position of the pusher will change only after the operation again. Therefore, only when the preset gear is reached, the force can be stopped, and it is not necessary to press all the time, and the operation is more convenient. The external airflow can enter through the gap between the housing and the second pressing structure and flow through the slot hole into the air duct. Specifically, the second pressing structure is arranged in the upper housing 110, and the installation manner is similar to the first button 700 described above.

[0105] Referring to Figure 11 , Figure 11Fig. 9 is a schematic view of a second pressing structure according to another embodiment of the present application. Specifically, in some embodiments, the second pressing structure includes a second limiting sleeve 810, a second button 820, a second elastic part, and a connecting member 830. The push member is connected to the housing through the second elastic part, which is in a compressed state. The elastic force of the second elastic part elastically biases the push member against the connecting member 830. The second limiting sleeve 810 is hollow inside. The second button 820 is disposed in the inner cavity of the second limiting sleeve 810 and can slide along the axial direction of the second limiting sleeve 810. When the second button 820 slides, it will drive the connecting member 830 to move, thereby driving the push member to move. The second limiting sleeve 810 is used to limit the connecting member 830, thereby limiting the push member to the current position. When the connecting member 830 moves away from the second limiting sleeve 810, the connecting member 830 can rotate to adjust the position of the push member.

[0106] Specifically, the outer wall of the connecting piece 830 is provided with a protrusion 831 extending along the axial direction of the connecting piece 830, and the protrusion 831 is provided with a first inclined surface 8311 near the end of the connecting piece 830 close to the second button 820. The second button 820 is provided with a plurality of sawteeth 821 continuously distributed in the circumferential direction near the end of the connecting piece 830, and the first inclined surface 8311 can engage with the sawteeth 821. The outer wall of the second button 820 is further provided with a sliding block 822, and the side wall of the inner cavity of the second limiting sleeve 810 is provided with a sliding groove in sliding connection with the sliding block 822, the sliding groove extending along the axial direction of the second limiting sleeve 810, and the sliding block 822 can slide along the sliding groove. The second limiting sleeve 810 is further provided with a plurality of clamping grooves 811 distributed in the circumferential direction, each clamping groove 811 extending along the axial direction of the second limiting sleeve 810, and the depth of each clamping groove 811 along the axial direction of the second limiting sleeve 810 is different. The clamping groove 811 and the sliding groove are located at the same position in the circumferential direction of the second limiting sleeve 810 and are in communication, and the second limiting sleeve 810 is further provided with a second inclined surface 812 near the end close to the connecting piece 830, and the second inclined surface 812 can abut against the first inclined surface 8311. In FIG. a, in the first state, when the second button 820 is not pressed, the protrusion 831 is clamped in the clamping groove 811, and the first inclined surface 8311 partially engages with the sawteeth 821, which means that only part of the first inclined surface 8311 abuts against the tooth surface of the sawteeth 821. In the second state, when the second button 820 is pressed, the second button 820 will push the connecting piece 830 to move along the axial direction of the second limiting sleeve 810, and the protrusion 831 slides in the clamping groove 811. Due to the limitation of the clamping groove 811 to the protrusion 831, the connecting piece 830 cannot rotate, and the first inclined surface 8311 still partially engages with the sawteeth 821. When the connecting piece 830 slides to the position shown in FIG. b, the protrusion 831 will exit the clamping groove 811. When the connecting piece 830 slides to the position shown in FIG. c, the protrusion 831 has completely exited the clamping groove 811, and the protrusion 831 is no longer limited by the clamping groove 811. During the above-mentioned pressing of the second button 820, the connecting piece 830 will move together with the pushing piece, thereby compressing the second elastic part arranged between the pushing piece and the shell. In the position shown in FIG. c, when the pressing of the second button 820 is stopped, under the driving of the elastic force of the second elastic part, the pushing piece and the connecting piece 830 have a tendency to move reversely and reset, thereby causing the first inclined surface 8311 to slide along the tooth surface of the sawteeth 821, and the connecting piece 830 rotates in the direction of the arrow, thereby realizing the complete engagement of the first inclined surface 8311 with the sawteeth 821. The complete engagement means that the entire region of the first inclined surface 8311 abuts against the tooth surface of the sawteeth 821. When reset to the position shown in FIG. d, it is in the state of complete engagement. With the continuous reverse reset of the second button 820, the second button 820 will be pushed into the inner cavity of the second limiting sleeve 810, while the connecting piece 830 will be blocked by the second inclined surface 812 at the end of the second limiting sleeve 810, and the first inclined surface 8311 abuts against the second inclined surface 812.Additionally, it should be noted that after the second button 820 is pushed into the inner cavity of the second limiting sleeve 810, it must be ensured that it does not slide out of the second limiting sleeve 810 on its own. Therefore, the sliding groove provided on the side wall of the inner cavity of the second limiting sleeve 810 does not need to be provided throughout the entire axial dimension. In this way, after the second button 820 is pushed into the inner cavity of the second limiting sleeve 810, even if the second button 820 continues to slide due to inertia, it will stop when it reaches the end of the sliding groove and will not come out of the second limiting sleeve 810. In the third state, due to the driving force of the rebound force of the second elastic part, the reverse movement tendency of the connecting member 830 still exists, causing the first inclined surface 8311 to slide along the second inclined surface 812, thereby causing the connecting member 830 to rotate until the protrusion 831 is engaged in the adjacent slot on the second limiting sleeve 810 and is limited by the slot. At this time, the position of the connecting member 830 in the pressing direction is limited, and the pushing member will also stay in the current position. Since each slot 811 has a different depth, when the protrusion 831 is engaged in different slots 811, the pusher will also be pushed out at different positions to correspond to different gears. To switch gears, simply press the second button 820.

[0107] See Figures 15 to 17 , Figure 15 This is a schematic diagram of the third pressing structure in another embodiment of the present invention. Figure 16 for Figure 15 A schematic diagram of the third button in the third pressing structure. Figure 17 for Figure 15 A schematic diagram of the third limiting sleeve of the third pressing structure. In some embodiments, the pushing component includes a pushing member and a third pressing structure. The third pressing structure is disposed within the housing and contacts the pushing member. A slot is disposed on the third pressing structure, and an intake port is disposed on the pushing member. The third pressing structure is used to drive the pushing member to move and can lock the pushing member in its current position. When the pushing member moves to a predetermined position, external airflow can enter through the gap between the housing and the third pressing structure and flow through the slot into the air duct. Specifically, the pushing member in this embodiment is generally similar in structure to the pushing member in the aforementioned embodiments. The intake port 312 is still located on the push plate 310 of the pushing member. The difference is that in this embodiment, the slot is disposed on the third pressing structure, and the pushing member may not have a protruding part. Similar to the second pressing structure, the third pressing structure is also disposed within the upper housing 110, and the installation method is similar to that of the aforementioned first button 700.

[0108] Specifically, in some embodiments, the third pressing structure comprises a third button 910, a third elastic part arranged between the pushing member and the housing, and a third limiting sleeve 920. The third elastic part is in a compressed state, and the elastic force of the third elastic part elastically abuts the pushing member against the third button 910. The third button 910 is arranged in an inner cavity 923 of the third limiting sleeve 920, a third slot hole 911 is arranged on the third button 910, the third button 910 comprises a first tooth part 912, the third limiting sleeve 920 comprises a second tooth part 921 capable of engaging with the first tooth part 912, the third button 910 is capable of moving relative to the third limiting sleeve 920, and when the first tooth part and the second tooth part are separated, the third button 910 is capable of rotating to adjust the position of the pressing block 914 extending towards the pushing member. Specifically, the inner cavity 923 of the third limiting sleeve 920 is in a slit shape, the third button 910 is in a plate shape, the third button 910 passes through the inner cavity 923, and two ends of the third button 910 respectively protrude from two ends of the inner cavity 923. One end of the third button 910 is used for applying an operation, and the other end, i.e., the pressing block 914, is used for abutting against the pushing member. The elastic force of the third elastic part elastically abuts the pushing member against the pressing block 914. The third button 910 is provided with a connecting column 913 protruding outward, the end of the connecting column 913 is connected with the first tooth part 912, and the first tooth part 912 can be directly selected as a cylindrical gear. The third limiting sleeve 920 is provided with a protruding part 922 protruding outward along the thickness direction, the protruding part 922 is provided with a groove 9221 in communication with the inner cavity 923, the second tooth part 921 is connected to the protruding part 922, and the second tooth part 921 can have only a part of a sawtooth-shaped tooth profile. The connecting column 913 extends from the inner cavity 923 into the groove 9221, the first tooth part 912 and the second tooth part 921 can engage to limit the third button 910. When the first tooth part 912 and the second tooth part 921 are separated, the limitation is released, the third button 910 can rotate relative to the third limiting sleeve 920, and during the rotation process, the position of the pressing block 914 extending towards the pushing member can be adjusted, so as to change the position of the pushing member extending, thereby realizing the scraping of the hair from the comb needle 230. In the first state, the elastic force of the third elastic part elastically abuts the pushing member against the third button 910, so that the first tooth part 912 on the third button 910 and the second tooth part 921 engage. At this time, the third button 910 is limited by the third limiting sleeve 920, and the pushing member also stays at the current position. In the second state, the third button 910 is pressed to separate the first tooth part 912 and the second tooth part 921, the third elastic part is further compressed, the third limiting sleeve 920 releases the limitation of the third button 910, the third button 910 is rotated to adjust the position of the pressing block 914 extending towards the pushing member, so as to change the position of the pushing member extending.After the third button 910 is rotated to the preset position, pressing the third button 910 stops. Driven by the rebound force of the third elastic part, the first tooth 912 on the third button 910 moves toward the second tooth 921 until the two re-engage and are limited. The third slot 911 is crescent-shaped. When the third button 910 is rotated to different angles, the third slot 911 may partially enter the air duct 400 and communicate with it. For example, in... Figure 15 and Figure 16 At the indicated position, the distance between the third slot 911 and the air duct 400 is at its maximum, and it does not enter the range of the air duct 400. When the third button 910 is rotated to tilt it at a certain angle relative to the third limiting sleeve 920, part of the crescent-shaped third slot 911 will enter the range of the air duct 400. At this time, external airflow can enter through the gap between the housing and the third pressing structure, enter between the third button 910 and the third limiting sleeve 920, and flow through the third slot 911 into the air duct 400. Of course, in some embodiments, the third slot 911 can also be strip-shaped, waist-shaped, elliptical, etc., as long as it is ensured that when the third button 910 is rotated to certain positions, the third slot 911 at least partially enters the range of the air duct 400 and the two are connected. In some embodiments, a spring 930 is also provided in the groove 9221. One end of the spring 930 is fixed to the inner wall of the groove 9221, and the other end can abut against the connecting post 913. When the third button 910 is pressed, the spring 930 and the aforementioned third elastic part are compressed. When the third button 910 is stopped, the spring 930 and the third elastic part rebound force drive the first tooth 912 on the third button 910 to move toward the second tooth 921 until the two engage again and are limited. In the above embodiments, the third limiting sleeve 920 is installed in the housing and the two are fixedly connected. External airflow can enter from the gap between the housing and the third limiting sleeve 920 and enter between the third button 910 and the third limiting sleeve 920, flowing through the third slot 911 and entering the air duct 400. In other embodiments, the third limiting sleeve 920 can also be part of the housing, and external airflow can directly enter from the gap between the third button 910 and the third limiting sleeve 920, flowing through the third slot 911 and entering the air duct 400.

[0109] Further, in some embodiments, the third button 910 comprises a pressing surface 9141 for pressing the pusher, different areas of the pressing surface 9141 press the pusher when the third button 910 rotates, and the pressing surface 9141 comprises a plurality of planes connected in sequence and having an included angle. Specifically, the pressing surface 9141 is arranged at the end of the pressing block 914, and the plurality of pressing surfaces 9141 are arranged at an angle. In the embodiment shown in the drawings, it can be considered that there are three pressing surfaces 9141, the middle pressing surface 9141 is arranged horizontally, and one inclined pressing surface 9141 is connected to each end of the middle pressing surface 9141. When the third button 910 rotates to the middle pressing surface 9141 in contact with the pusher, the pusher is pushed out the farthest, the third slot hole 911 is farthest from the air duct 400, and does not enter the range of the air duct 400; when the third button 910 rotates to the two side pressing surfaces 9141 in contact with the pusher, the pusher is pushed out less, and the tip area of the third slot hole 911 enters the range of the air duct 400 and communicates with the air duct 400. In other embodiments, the pressing surface 9141 can also be curved, for example, it can be an arc surface, which is equivalent to a smooth transition between the adjacent planar pressing surfaces 9141 in the previous embodiment.

[0110] When the third pressing structure of the above-mentioned Figures 15 to 17 embodiments is used, when adjusting the vacuum degree, the operator first presses the third button 910, and then rotates the third button 910 to switch to different pressing surfaces 9141 in contact with the pusher. When rotating the third button 910, it can be rotated left and right, or it can be rotated forward and backward, depending on the installation direction of the third pressing structure. When installing, the third pressing structure can be installed horizontally or vertically according to the size of the space available for installation.

[0111] In some embodiments, the vacuum cleaner comprises the vacuum cleaner accessory of any one of the preceding embodiments, and has the beneficial effects of any one of the preceding embodiments.

[0112] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0113] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A vacuum cleaner accessory, characterized in that, include: case; An air duct, located inside the housing, is used to connect to a vacuum source; A pushing component is connected to the housing. The pushing component has an intake port that communicates with the air duct. When the air duct is connected to the vacuum source, the intake port can perform negative pressure adsorption, and the pushing component can move to adjust the vacuum degree of the intake port. The pushing component has a through slot along the thickness direction. The pushing component includes a pushing member and a first pressing structure. The first pressing structure includes a first button, which is fixedly connected to the pushing member. The slot and the intake port are both provided on the pushing member. The first button is provided inside the housing. When the pushing component moves to a predetermined position, the slot communicates with the air duct, and external airflow can enter through the gap between the housing and the first button and flow through the slot into the air duct.

2. The vacuum cleaner accessory according to claim 1, characterized in that, The vacuum cleaner accessory also includes a comb plate, which is connected to the housing, and has multiple comb needles arranged on it.

3. The vacuum cleaner accessory according to claim 1, characterized in that, The slot extends along the moving direction of the pushing component. When the pushing component moves, the slot gradually enters the air duct range and connects with the air duct.

4. The vacuum cleaner accessory according to claim 1, characterized in that, The plurality of slots are arranged at intervals along the moving direction of the pushing component. When the pushing component moves, the plurality of slots sequentially enter the air duct range and communicate with the air duct.

5. The vacuum cleaner accessory according to claim 2, characterized in that, The pushing component includes a push plate, which has a through groove and an intake port. The comb needle passes through the through groove. In combing mode, the pushing component moves until the comb needle is exposed through the through groove. In cleaning mode, the pusher moves until the push plate covers the outer end of the comb needle.

6. The vacuum cleaner accessory according to claim 5, characterized in that, The through groove is strip-shaped, and multiple comb needles pass through each through groove. The multiple comb needles are arranged in a row along the extension direction of the through groove, and the extension direction of the through groove is set at an angle to the movement direction of the comb needles in the combing mode.

7. The vacuum cleaner accessory according to claim 5, characterized in that, The extension direction of the channel is perpendicular to the movement direction of the comb needle in the combing mode.

8. The vacuum cleaner accessory according to claim 2, characterized in that, The outer end of the comb needle is curved.

9. The vacuum cleaner accessory according to claim 8, characterized in that, The outer end of the comb needle is spherical or ellipsoidal.

10. The vacuum cleaner accessory according to claim 2, characterized in that, The diameter d of the comb needle is in the range of 0.8mm≤d≤1.2mm.

11. The vacuum cleaner accessory according to claim 2, characterized in that, It also includes a comb needle adhesive layer, which is fixedly connected to the comb needle plate, and the comb needle is connected to the comb needle adhesive layer.

12. The vacuum cleaner accessory according to claim 11, characterized in that, The comb needle is provided with a first limiting part and a second limiting part distributed along the axial direction. Both the first limiting part and the second limiting part protrude radially from the circumferential surface of the comb needle, and the comb needle adhesive layer is stuck between the first limiting part and the second limiting part.

13. The vacuum cleaner accessory according to claim 2, characterized in that, The comb needles are connected to the comb needle plate by an elastic part; or, the comb needles are elastic and can extend and retract along their own length.

14. The vacuum cleaner accessory according to claim 5, characterized in that, The suction port is located in the central area of ​​the push plate, and multiple through slots are arranged around the suction port.

15. The vacuum cleaner accessory according to claim 14, characterized in that, The pushing component also includes a protruding plate integrally connected to the push plate and protruding toward the interior of the vacuum cleaner accessory. The protruding plate has an opening, and the air duct and the suction inlet are both connected to the opening.

16. The vacuum cleaner accessory according to claim 15, characterized in that, It also includes a sealing element that is snapped together with the air duct. The housing and the air duct inlet, as well as the convex plate and the air duct inlet, are sealed by the sealing element, and the sealing element is located outside the opening.

17. The vacuum cleaner accessory according to claim 16, characterized in that, The inlet of the air duct is embedded in the seal, and the seal extends along the edge of the inlet of the air duct.

18. The vacuum cleaner accessory according to claim 17, characterized in that, The outer side wall of the seal adjacent to the convex plate is provided with protruding ribs, which abut against the area on the convex plate located on both sides of the opening.

19. The vacuum cleaner accessory according to claim 18, characterized in that, When the pusher moves, the convex plate slides along the rib and the two always abut against each other.

20. The vacuum cleaner accessory according to claim 17, characterized in that, The housing has a recessed portion that is recessed into the interior of the vacuum cleaner accessory. The sidewall of the recessed portion is fitted to the sealing element, and the joint between the two is arc-shaped.

21. The vacuum cleaner accessory according to claim 15, characterized in that, When the pusher moves to its limit position, the opening is located within the inlet range of the air duct.

22. The vacuum cleaner accessory according to claim 21, characterized in that, The housing includes an upper shell and a lower shell. The push plate and the comb are located on the side close to the lower shell. The convex plate has a protrusion that extends into the upper shell. The slot is provided on the protrusion. When the pusher moves to the lower limit position, the end of the protrusion is located inside the upper shell.

23. The vacuum cleaner accessory according to claim 22, characterized in that, The inlet of the air duct is inclined outward from the side near the lower shell.

24. The vacuum cleaner accessory according to claim 1, characterized in that, An elastic element for driving the pusher to reset is provided between the first button and the housing.

25. A vacuum cleaner accessory, characterized in that, include: case; An air duct, located inside the housing, is used to connect to a vacuum source; A pushing component is connected to the housing. The pushing component is provided with an intake port that communicates with the air duct. When the air duct is connected to the vacuum source, the intake port can perform negative pressure adsorption, and the pushing component can move to adjust the vacuum level of the intake port. The pushing component has a through slot along its thickness direction. The pushing component includes a pushing member and a second pressing structure. The second pressing structure contacts the pushing member. The slot and the suction port are both located on the pushing member. The second pressing structure is located inside the housing. The second pressing structure is used to drive the pushing member to move and can lock the pushing member in its current position. When the pushing member moves to a predetermined position, the slot communicates with the air duct, and external airflow can enter through the gap between the housing and the second pressing structure and flow through the slot into the air duct.

26. The vacuum cleaner accessory according to claim 25, characterized in that, The second pressing structure includes a second limiting sleeve, a second button, a second elastic part, and a connecting member. The second elastic part is disposed between the pushing member and the housing so that the pushing member elastically abuts against the connecting member. The second button is disposed in the inner cavity of the second limiting sleeve. The second limiting sleeve is used to limit the connecting member. The second button can drive the connecting member to slide along the axial direction of the second limiting sleeve. When the connecting member moves to separate from the second limiting sleeve, the connecting member can rotate to adjust the position extending toward the pushing member.

27. The vacuum cleaner accessory according to claim 26, characterized in that, The outer wall of the connector is provided with a protrusion, and the end of the protrusion near the second button is provided with a first inclined surface. The end of the second button near the connector is provided with a plurality of circumferentially continuously distributed serrations. The first inclined surface can engage with the serrations. The outer wall of the second button is also provided with a slider. The side wall of the inner cavity is provided with a sliding groove that is slidably connected to the slider. The second limiting sleeve is also provided with a plurality of circumferentially distributed slots. Each slot has a different depth. The slots extend along the axial direction of the second limiting sleeve and communicate with the sliding grooves. The end of the second limiting sleeve near the connector is also provided with a second inclined surface. The second inclined surface can fit against the first inclined surface. In the first state, the protrusion is engaged in the slot, and the first inclined surface engages with the serrated portion; In the second state, the second button drives the connector to move axially along the second limiting sleeve until the protrusion exits the slot. The connector rotates relative to the second button so that the first inclined surface fully engages with the serration and the first inclined surface fits against the second inclined surface. In the third state, driven by the second elastic part, the first inclined surface slides along the second inclined surface so that the protrusion slides into the adjacent slot.

28. A vacuum cleaner accessory, characterized in that, include: case; An air duct, located inside the housing, is used to connect to a vacuum source; A pushing component is connected to the housing. The pushing component is provided with an intake port that communicates with the air duct. When the air duct is connected to the vacuum source, the intake port can perform negative pressure adsorption, and the pushing component can move to adjust the vacuum level of the intake port. The pushing component has a through slot along its thickness direction. The pushing component includes a pushing member and a third pressing structure. The third pressing structure is disposed inside the housing and contacts the pushing member. The slot is disposed on the third pressing structure. The suction port is disposed on the pushing member. The third pressing structure is used to drive the pushing member to move and can lock the pushing member in its current position. When the pushing member moves to a predetermined position, the slot communicates with the air duct, and external airflow can enter through the gap between the housing and the third pressing structure and flow through the slot into the air duct.

29. The vacuum cleaner accessory according to claim 28, characterized in that, The third pressing structure includes a third button, a third elastic part, and a third limiting sleeve. The third elastic part is disposed between the pusher and the housing so that the pusher elastically abuts against the third button. The third button is disposed in the inner cavity of the third limiting sleeve. The slot is disposed on the third button. The third button includes a first tooth. The third limiting sleeve includes a second tooth that can mesh with the first tooth. The third button can move relative to the third limiting sleeve. When the third button moves to the point where the first tooth and the second tooth separate, the third button can rotate to adjust its position extending toward the pusher.

30. The vacuum cleaner accessory according to claim 29, characterized in that, The third button includes a pressing surface for pressing the pusher. When the third button is rotated, different areas of the pressing surface press against the pusher. The pressing surface is curved, or the pressing surface includes multiple planes connected in sequence and having included angles.

31. A vacuum cleaner, characterized in that, include: The vacuum cleaner accessory according to any one of claims 1 to 30.

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