Filter assembly with dust cup locking device and vacuum system

Abstract

The application provides a filter assembly and dust cup locking device and a dust collector system. In the filter assembly and dust cup locking device, a first clamping groove is formed in the inner wall of the side of the dust cup, the first clamping groove comprises a first clamping inlet and a first clamping interface which are connected, the first clamping inlet extends to the top wall of the dust cup, the first clamping interface extends along the circumference of the dust cup, and a stopper is arranged in the first clamping interface; a main body and a mounting ring are arranged on the filter assembly, and a locking piece is arranged on the mounting ring; the locking piece comprises a first clamping block on the mounting ring, the first clamping block can be clamped into the first clamping groove from the first clamping inlet and moved to be detachably limited between the stopper and the inner side wall of the first clamping interface. The application prevents the filter assembly from loosening, increases the stability of the locking of the filter assembly, is simple to operate, and is stable and reliable.

Description

Technical Field

[0001] This application relates to the field of vacuum cleaner technology, and more particularly to a filter assembly, a dust cup locking device, and a vacuum cleaner system. Background Technology

[0002] Vacuum cleaners typically include a dust cup and a removable filter for easy dust removal.

[0003] Existing filter components and dust cups are mostly connected by threaded connections or axial snap-fit ​​connections. These connection methods can lead to circumferential loosening of the filter components, resulting in unreliable locking of the filter components. Moreover, threaded connections require repeated circumferential rotation during installation and disassembly, which is inconvenient. Summary of the Invention

[0004] This application provides a filter assembly and dust cup locking device and a vacuum cleaner system to solve the problems existing in the prior art, prevent the filter assembly from loosening, increase the stability of the filter assembly locking, and is simple to operate and stable and reliable.

[0005] The filter assembly and dust cup locking device provided in this application include: a dust cup, wherein a first slot is formed on the inner side wall of the dust cup, the first slot includes a first slot inlet and a first slot outlet that are connected to each other, the first slot inlet extends to the top wall of the dust cup, the first slot outlet extends circumferentially along the dust cup, and a stop is provided in the first slot outlet; a filter assembly, wherein a main body and a mounting ring are provided on the filter assembly, and a locking member is provided on the mounting ring; the locking member includes a first snap-fit ​​block located on the mounting ring, the first snap-fit ​​block can snap into the first slot from the first slot inlet and move to be detachably limited between the stop and the inner side wall of the first slot outlet.

[0006] Optionally, the first latching block includes latching blocks and limiting blocks spaced apart circumferentially; when the first latching block engages with the first card interface, the latching blocks engage with the side of the stop block facing away from the first card inlet, and the limiting blocks are limited within the first card interface and located on the side of the stop block facing away from the latching blocks.

[0007] Optionally, the side of the limiting block that is circumferentially away from the stop is a first inclined surface, and the inner side of the first card inlet that is circumferentially away from the first card interface is a second inclined surface; the first inclined surface and the second inclined surface have the same inclination direction.

[0008] Optionally, the sidewall of the stop block facing the first card inlet is a first guide slope, and the sidewall of the card block facing away from the limiting block is a second guide slope; the inclination directions of the first guide slope and the second guide slope are the same.

[0009] Optionally, the inner side wall of the dust cup is further provided with a second slot and a third slot, which are located on both sides of the first slot along the circumferential direction. The second slot includes a connected second slot inlet and a connected second slot outlet, with the second slot inlet extending to the top wall of the dust cup and the second slot outlet extending along the circumferential direction of the dust cup. The third slot includes a connected third slot inlet and a connected third slot outlet, with the third slot inlet extending to the top wall of the dust cup and the third slot outlet extending along the circumferential direction of the dust cup. The locking member further includes a second locking block and a third locking block located on the mounting ring, which are located on both sides of the first locking block along the circumferential direction. When the first locking block is engaged in the first slot, the second locking block and the third locking block are engaged in the second slot and the third slot simultaneously, respectively.

[0010] Optionally, the mounting ring includes an annular sidewall, and a handle is rotatably connected to the inside of the annular sidewall; the filter assembly has a baffle protruding from the inner wall of the annular sidewall at the bottom, and the handle can be attached to the baffle; or the inner wall of the annular sidewall has a snap-fit ​​protrusion, and the outer wall of the handle has a groove, and the handle is limited when rotated to the point where the snap-fit ​​protrusion is located in the groove.

[0011] Optionally, the handle includes a hand-held portion and a pivot at both ends of the hand-held portion, the pivot being rotatably mounted on the annular sidewall.

[0012] Optionally, a first limiting member is installed on the side of the dust cup, and the first limiting member is provided with an axially extending receiving cavity; the filter assembly is installed with a second limiting member that extends axially, and when the dust cup is installed on the filter assembly, at least part of the second limiting member passes through the receiving cavity; the mounting ring is rotatably installed on the main body, and when the mounting ring rotates to abut against the second limiting member or the blocking part provided on the main body in the circumferential direction, the locking member is unlocked or locked with the dust cup.

[0013] Optionally, the main body of the filter assembly has a sliding port, and the bottom of the mounting ring is equipped with a hook. The hook part of the hook is engaged in the sliding port. The circumferential width of the sliding port is greater than the width of the hook part, and the hook part can rotate circumferentially within the sliding port.

[0014] This application also provides a vacuum cleaner system, including a filter assembly and a dust cup locking device as described in any one of the above and a vacuum cleaner body, wherein the vacuum cleaner body includes a locking port; the filter assembly is provided with a latch, and after the locking member is engaged with the dust cup, the latch can be engaged with the locking port along the axial direction of the dust cup.

[0015] The above technical solution has the following beneficial effects: The filter assembly, dust cup locking device, and vacuum cleaner system provided in this application can be detachably engaged with the first slot on the dust cup and the locking member on the filter assembly, thereby achieving axial limiting and circumferential locking of the filter assembly on the dust cup, preventing the filter assembly from loosening and increasing the stability of the filter assembly locking. In addition, when the filter assembly is installed in the dust cup, the first locking block in the locking member can be rotated to engage with the stop block, which is simple to operate and stable and reliable after engagement. Attached Figure Description

[0016] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings to help understand the purpose and advantages of this application, wherein...

[0017] Figure 1 This is a schematic diagram of a dust cup with a locking mechanism provided in an optional embodiment of this application.

[0018] Figure 2 This is a schematic diagram of a dust cup with a handle provided in an optional embodiment of this application.

[0019] Figure 3 This is a schematic diagram of a filter assembly provided in an optional embodiment of this application, which includes a blocking part and a second limiting member.

[0020] Figure 4 This is a partial enlarged view of the top of the filtering component provided in an optional embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure in an optional embodiment of this application, showing that the filter assembly is separated from the dust cup.

[0022] Figure 6 This is a schematic diagram of the structure of the first slot on the dust cup provided in an optional embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the structure of the second slot on the dust cup provided in an optional embodiment of this application.

[0024] Figure 8 This is a schematic diagram of the structure of the third slot on the dust cup provided in an optional embodiment of this application.

[0025] Figure 9 This is a schematic diagram of the structure of the first snap-fit ​​block on the filter assembly provided in an optional embodiment of this application.

[0026] Figure 10 This is a schematic diagram of the structure of the second snap-fit ​​block on the filter assembly provided in an optional embodiment of this application.

[0027] Figure 11 This is a schematic diagram of the structure of the third snap-fit ​​block on the filter assembly provided in an optional embodiment of this application.

[0028] Figure 12 This is a schematic diagram of the main body structure provided in an optional embodiment of this application.

[0029] Figure 13 A partial structural diagram of the mounting ring provided for an optional implementation of this application.

[0030] Figure 14 This is a schematic diagram of the structure of the filter assembly locking device provided in an optional embodiment of this application when the dust cup is separated from the vacuum cleaner body.

[0031] Figure 15 This is a partial enlarged view of the vacuum cleaner body provided in an optional embodiment of this application.

[0032] Explanation of reference numerals in the attached figures: Dust cup-1, first card slot-10, first card inlet-100, second inclined surface-100a, first card interface-101, inner sidewall-101a, stop-block-10c, second card slot-11, second card inlet-110, second card interface-111, third card slot-12, third card inlet-120, third card interface-121, first limiting component-13, filter assembly-2, main body-20, sliding port-200, annular slide-201, arc groove-201a, block Part-201b, Mounting ring-21, Annular sidewall-210, Snap-fit ​​protrusion-210a, Snap hook-211, Hook part-211a, Locking part-22, First snap-fit ​​block-220, Snap block-220a, Limiting block-220b, First inclined surface-2200b, Lock-23, Second limiting part-24, Handle-25, Groove-250, Filter element-26, Baffle-27, Second snap-fit ​​block-28, Third snap-fit ​​block-29, Vacuum cleaner body-3, Snap-fit ​​opening-30. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below with reference to embodiments and accompanying drawings. The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0034] The filter assembly and dust cup locking device provided in this application, such as Figures 1 to 5 As shown, it includes: a dust cup 1 and a filter assembly 2.

[0035] Among them, such as Figures 6 to 8As shown, a first card slot 10 is provided on the inner side wall of the dust cup 1. The first card slot 10 includes a first card inlet 100 and a first card interface 101 that are connected to each other. The first card inlet 100 extends to the top wall of the dust cup 1, and the first card interface 101 extends along the circumference of the dust cup 1. A stop block 10c is provided in the first card interface 101.

[0036] like Figures 9 to 11 As shown, the filter assembly 2 is provided with a main body 20 and a mounting ring 21, and the mounting ring 21 is provided with a locking member 22; the locking member 22 includes a first snap-fit ​​block 220 located on the mounting ring 21, the first snap-fit ​​block 220 can be snapped into the first card slot 10 from the first card inlet 100 and moved to be detachably limited between the stop block 10c and the inner sidewall 101a of the first card interface 101.

[0037] Please refer to Figure 6 The first slot 10 is an L-shaped slot, and the stop block 10c protrudes from the inner wall of the first card interface 101. During installation, the first card contact block 220 is first inserted into the first card inlet 100, and then the dust cup 1 or filter assembly 2 is rotated to make the first card contact block 220 inserted into the first card interface 101 until it contacts the stop block 10c. Continue to apply force to rotate, so that the first card contact block 220 passes the stop block 10c and is limited to the stop block 10c and the inner side wall 101a of the first card interface 101. The stop block 10c and the inner side wall 101a of the first card interface 101 limit the first card contact block 220 circumferentially. The upper and lower walls of the first card interface 101 along the axis can limit the first card contact block 220 axially.

[0038] The filter assembly and dust cup locking device provided in this application embodiment can be detachably engaged with the first slot 10 on the dust cup 1 and the locking member 22 on the filter assembly 2, thereby achieving axial limiting and circumferential locking of the filter assembly 2 on the dust cup 1, preventing the filter assembly 2 from loosening and increasing the stability of the filter assembly 2 locking; in addition, when the filter assembly 2 is installed on the dust cup 1, the first locking block 220 in the locking member 22 can be rotated to engage with the stop block 10c, which is simple to operate and stable and reliable.

[0039] In an optional embodiment, the first latching block 220 includes latching blocks 220a and limiting blocks 220b spaced apart circumferentially; when the first latching block 220 engages with the first card interface 101, the latching blocks 220a are engaged with the side of the stop block 10c facing away from the first card inlet 100, and the limiting blocks 220b are confined within the first card interface 101 and located on the side of the stop block 10c facing away from the latching blocks 220a. Figure 9As shown, by setting the first locking block 220 as a combination structure including the locking block 220a and the limiting block 220b, the stop block 10c is "clamped" between the locking block 220a and the limiting block 220b in the locked state, so as to achieve bidirectional limiting in the circumferential direction, effectively preventing the filter assembly 2 from accidentally loosening due to reverse rotation relative to the dust cup 1 in the locked position, and enhancing the reliability of locking.

[0040] The first locking block 220 can be a single integral component with two circumferentially spaced protrusions forming a locking block 220a and a limiting block 220b, respectively. The distance between the locking block 220a and the limiting block 220b is slightly greater than the thickness of the stop block 10c, so that the stop block 10c can be embedded therebetween.

[0041] In an optional embodiment, the side of the limiting block 220b circumferentially away from the stop block 10c is a first inclined surface 2200b, and the inner side of the first card inlet 100 circumferentially away from the first card interface 101 is a second inclined surface 100a; the first inclined surface 2200b and the second inclined surface 100a have the same inclination direction, such as... Figure 6 and Figure 11 As shown, it can provide guidance during the initial installation stage (before the first card connector 220 is fully inserted into the first card inlet 100). When there is an angular deviation in the filter assembly 2, the contact between the first inclined surface 2200b and the second inclined surface 100a can generate a component force, guiding the first card connector 220 to slide smoothly into the first card inlet 100, playing a role in initial correction and auxiliary alignment, and reducing the installation difficulty.

[0042] Furthermore, the inclination angle of the first inclined surface 2200b and the second inclined surface 100a can be between 30-45°, and the surfaces are provided with a lubricating coating to increase the guiding effect.

[0043] In an optional embodiment, the sidewall of the stop block 10c facing the first card inlet 100 is a first guide slope, and the sidewall of the card block 220a facing away from the limiting block 220b is a second guide slope; the inclination directions of the first guide slope and the second guide slope are the same. In this embodiment, the first guide slope and the second guide slope cooperate to assist the card block 220a in passing over the stop block 10c when the card block 220a rotates to contact the stop block 10c, thereby reducing the torque required for the filter assembly 2 to engage with the dust cup 1 and increasing the ease of operation.

[0044] Similarly, the inclination angle of the first guide ramp and the second guide ramp can be between 30-45°, and the surface is provided with a lubricating coating to enhance the guiding effect.

[0045] In an optional embodiment, the inner side wall of the dust cup 1 is further provided with a second slot 11 and a third slot 12, the second slot 11 and the third slot 12 being located on both sides of the first slot 10 along the circumferential direction, as shown below. Figure 7 As shown; the second card slot 11 includes a connected second card inlet 110 and a connected second card interface 111, the second card inlet 110 extending to the top wall of the dust cup 1, and the second card interface 111 extending circumferentially along the dust cup 1; the third card slot 12 includes a connected third card inlet 120 and a third card interface 121, the third card inlet 120 extending to the top wall of the dust cup 1, and the third card interface 121 extending circumferentially along the dust cup 1; the locking member 22 also includes a second locking block 28 and a third locking block 29 located on the mounting ring 21, the second locking block 28 and the third locking block 29 being located on both sides of the first locking block 220 circumferentially; when the first locking block 220 is engaged in the first card slot 10, the second locking block 28 and the third locking block 29 are engaged in the second card slot 11 and the third card slot 12 simultaneously, respectively. Figures 9 to 11 As shown, the embodiments of this application employ at least three circumferentially distributed slots and blocks 220a for cooperation (the first slot 10 and the first block 220, the second slot 11 and the second block 28, and the third slot 12 and the third block 29 cooperate), which significantly improves the balance and stability of the locking between the dust cup 1 and the filter assembly 2, prevents shaking or tilting that may occur due to single-point force, and enhances the strength and reliability of the connection.

[0046] Furthermore, the first slot 10, the second slot 11, and the third slot 12 are evenly distributed along the circumference of the dust cup 1. The first locking block 220, the second locking block 28, and the third locking block 29 correspond one-to-one with the positions of the first slot 10, the second slot 11, and the third slot 12, respectively. During installation, the three locking blocks simultaneously enter their respective slots and move within the slots along the circumference of the dust cup 1 until they are stopped, thus achieving balanced locking at multiple points.

[0047] In one optional embodiment, the mounting ring 21 includes an annular sidewall 210, and a handle 25 is rotatably connected to the inside of the annular sidewall 210; the filter assembly 2 has a baffle 27 protruding from the inner wall of the annular sidewall 210 at the bottom, and the handle 25 can be placed on the baffle 27; or the inner wall of the annular sidewall 210 has a snap-fit ​​protrusion 210a, and the outer wall of the handle 25 has a groove 250, and the handle 25 is limited when rotated until the snap-fit ​​protrusion 210a is limited to the groove 250. Figures 2 to 4As shown, the handle 25 makes it easy for users to lift the entire filter assembly 2, and the baffle 27 provides a storage position for the handle 25. When the handle 25 is not in use, it can be stably supported on the baffle 27 to prevent it from shaking and protect the handle 25 from damage. The locking and limiting method of the slot 250 and the locking protrusion 210a helps to increase the stability of the handle 25.

[0048] The annular sidewall 210 of the mounting ring 21 is part of the main body 20 of the filter assembly 2. The handle 25 is mounted on the inner or two side walls of the annular sidewall 210 via a pivot, hinge, or other structure. The inner side of the handle 25 may also have a groove-like structure to facilitate hand application of force. The baffle 27 may be a platform, flange, or a series of support points protruding inward from the inner wall of the annular sidewall 210.

[0049] In an optional embodiment, the handle 25 includes a holding portion and pivots at both ends of the holding portion, the pivots being rotatably mounted on the annular sidewall 210. The pivots may be cylindrical pins extending from both ends of the handle 25, and correspondingly, the annular sidewall 210 has shaft holes, the pivots being rotatably connected within the shaft holes to achieve rotation of the handle 25 relative to the annular sidewall 210.

[0050] The upper surface of the stop 27 is provided with an arc-shaped groove adapted to the handle portion, and the handle portion can be at least partially disposed within the arc-shaped groove. The arc-shaped groove adapts to the shape of the handle portion, allowing the handle 25 to fit more snugly and stably on the stop 27 when stored, further preventing the handle 25 from springing up due to vibration or movement, increasing structural stability and reliability, and improving user experience. The curvature of the arc-shaped groove roughly matches the curvature of the lower surface of the handle portion, and its depth is sufficient to accommodate part of the handle portion's structure. In an optional embodiment, a first limiting member 13 is installed on the side of the dust cup 1, and the first limiting member 13 is provided with an axially extending receiving cavity; a second limiting member 24 extending axially is installed on the filter assembly 2, and when the dust cup 1 is installed on the filter assembly 2, at least part of the second limiting member 24 passes through the receiving cavity; the mounting ring 21 is rotatably mounted on the main body 20, and when the mounting ring 21 rotates to abut against the second limiting member 24 or the blocking part 201b, it corresponds exactly to the three latching blocks retracting from the three latching interfaces to the latching inlet position (unlocked position) or exactly to the three latching blocks snapping in from the three latching interfaces. The position of the card slot (locking position) prevents damage to the mechanism that may be caused by excessive rotation by the user, thus playing a protective role and facilitating the standardization of the unlocking action. The blocking part 201b provides a clear mechanical limit point for the rotation stroke of the mounting ring 21. In this embodiment, the receiving cavity can limit the second limiting member 24 along the axial direction to ensure that the filter assembly 2 is correctly installed on the dust cup 1. Subsequently, the mounting ring 21 is rotated to achieve circumferential engagement between the first card block 220 and the first card slot 10 on the dust cup 1. Both the second limiting member 24 and the blocking part 201b can serve as limiting structures for the unlocking or locking positions of the circumferential engagement.

[0051] In one alternative implementation, such as Figure 2 and Figure 3 As shown, the main body 20 includes an annular slide 201, and the mounting ring 21 is sleeved on the annular slide 201 and rotates along the arc groove 201a opened on the annular slide 201. The blocking part 201b can be located at the end of the arc groove 201a.

[0052] Furthermore, in the embodiments of this application, the first limiting member 13 and the second limiting member 24 may have a cavity structure for accommodating the transmission component, which can drive the dust scraping component that scrapes the filter component 2 in the dust cup 1 to move axially.

[0053] In this embodiment, the mounting ring 21 can be rotatably fitted onto the outside or upper part of the main body 20 by means of bearings, bushings, or simple annular protrusions and grooves.

[0054] In one alternative implementation, please refer to Figures 12 to 13The filter assembly 2 has a sliding opening 200 on its main body 20. A hook 211 is installed at the bottom of the mounting ring 21. The hook portion 211a of the hook 211 engages with the sliding opening 200 from the inner cavity of the main body 20. The circumferential width of the sliding opening 200 is greater than the width of the hook portion 211a, allowing the hook portion 211a to rotate circumferentially within the sliding opening 200, thus causing the mounting ring 21 to rotate relative to the main body 20. The number of hooks 211 can be at least two, preferably three, with at least two hooks evenly distributed along the circumference of the main body 20. The number of sliding openings 200 corresponds one-to-one with the number of hooks 211 to increase the stability of the mounting ring 21 when rotating on the main body 20.

[0055] This application also provides a vacuum cleaner system, including a filter assembly and dust cup locking device as described in any of the above embodiments, and a vacuum cleaner body 3. The vacuum cleaner body 3 includes a locking opening 30, and a latch 23 is provided on the main body 20 of the filter assembly 2. After the locking member 22 is engaged with the dust cup 1, the latch 23 can be engaged with the locking opening 30 along the axial direction of the dust cup 1. This application ensures that the filter assembly 2 and the dust cup 1 are properly engaged by means of the latch 23, which can only be engaged with the vacuum cleaner body 3 after the locking member 22 is engaged with the dust cup 1.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A filter assembly and dust cup locking device, characterized in that, include: The dust cup has a first card slot on its inner side wall. The first card slot includes a first card inlet and a first card outlet that are connected to each other. The first card inlet extends to the top wall of the dust cup, and the first card outlet extends along the circumference of the dust cup. A stop is provided in the first card outlet. A filter assembly, wherein the filter assembly is provided with a main body and a mounting ring, and the mounting ring is provided with a locking element; The locking element includes a first snap-fit ​​block located on the mounting ring. The first snap-fit ​​block can be snapped into the first card slot from the first card inlet and moved to be detachably limited between the stop block and the inner wall of the first card interface.

2. The filter assembly and dust cup locking device according to claim 1, characterized in that, The first latching block includes latching blocks and limiting blocks spaced apart circumferentially; When the first card-connecting block engages with the first card interface, the card-connecting block engages with the side of the stop block facing away from the first card inlet, and the limiting block is limited within the first card interface and located on the side of the stop block facing away from the card-connecting block.

3. The filter assembly and dust cup locking device according to claim 2, characterized in that, The side of the limiting block that is circumferentially away from the stop is a first inclined surface, and the inner side of the first card inlet that is circumferentially away from the first card interface is a second inclined surface. The first inclined plane and the second inclined plane have the same direction of inclination.

4. The filter assembly and dust cup locking device according to claim 3, characterized in that, The side wall of the stop block facing the first card inlet is a first guide slope, and the side wall of the card block facing away from the limiting block is a second guide slope; The first guide ramp and the second guide ramp have the same inclination direction.

5. The filter assembly and dust cup locking device according to claim 1, characterized in that, The inner side wall of the dust cup is also provided with a second slot and a third slot, which are located on both sides of the first slot along the circumferential direction. The second card slot includes a second card inlet and a second card interface that are connected to each other. The second card inlet extends to the top wall of the dust cup, and the second card interface extends circumferentially along the dust cup. The third card slot includes a third card inlet and a third card interface that are connected to each other. The third card inlet extends to the top wall of the dust cup, and the third card interface extends circumferentially along the dust cup. The locking component further includes a second locking block and a third locking block located on the mounting ring, the second locking block and the third locking block being located on both sides of the first locking block along the circumferential direction; When the first card block is inserted into the first card slot, the second card block and the third card block are inserted into the second card slot and the third card slot simultaneously, respectively.

6. The filter assembly and dust cup locking device according to claim 1, characterized in that, The mounting ring includes an annular sidewall, and a handle is rotatably connected to the inside of the annular sidewall; The filter assembly has a baffle protruding from the inner wall of the annular sidewall at the bottom of the annular sidewall, and the handle can be attached to the baffle; or the inner wall of the annular sidewall has a snap-fit ​​protrusion, and the outer wall of the handle has a groove, and the handle is limited when rotated to the point where the snap-fit ​​protrusion is located in the groove.

7. The filter assembly and dust cup locking device according to claim 6, characterized in that, The handle includes a hand-held portion and a pivot at both ends of the hand-held portion, the pivot being rotatably mounted on the annular sidewall.

8. The filter assembly and dust cup locking device according to claim 7, characterized in that, A first limiting member is installed on the side of the dust cup, and the first limiting member is provided with a receiving cavity extending along the axial direction. The filter assembly is equipped with a second limiting member extending along the axial direction. When the dust cup is installed on the filter assembly, at least part of the second limiting member passes through the receiving cavity. The mounting ring is rotatably mounted on the main body. When the mounting ring rotates to abut against the second limiting member or the blocking part provided on the main body in the circumferential direction, the locking member is unlocked or locked with the dust cup.

9. The filter assembly and dust cup locking device according to claim 8, characterized in that, The filter assembly has a sliding port on its main body and a hook is installed at the bottom of the mounting ring. The hook of the hook is engaged in the sliding port. The width of the sliding port in the circumferential direction is greater than the width of the hook. The hook can rotate in the circumferential direction within the sliding port.

10. A vacuum cleaner system, characterized in that, Includes the filter assembly and dust cup locking device as described in any one of claims 1-9 and the vacuum cleaner body, wherein the vacuum cleaner body includes a locking port; The filter assembly is provided with a latch. After the locking element is engaged with the dust cup, the latch can be engaged with the engagement port along the axial direction of the dust cup.

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