Dust cup assembly

Abstract

The dust cup assembly comprises a dust cup and a filter assembly; a dust cavity is formed inside the dust cup; the filter assembly is screw-coupled to the dust cavity; the filter assembly can be rotated to a locked position locked with the dust cup and an unlocked position unlocked with the dust cup; the filter assembly is provided with an elastic protrusion; an inner wall of the dust cavity is provided with a supporting groove; when the filter assembly is rotated to the locked position relative to the dust cup, the elastic protrusion is clamped into the supporting groove and kept in a compressed state; the elastic protrusion provides elastic force to keep the filter assembly and the dust cup locked. In the utility model, the dust cup and the filter assembly are assembled through screw-coupling, which is quick and convenient to install; after assembly, the elastic protrusion is clamped in the supporting groove to provide elastic force to keep the filter assembly and the dust cup locked, ensuring stable assembly; the utility model is applied to household electrical appliances such as vacuum cleaners and floor washing machines, further preventing the filter assembly and the dust cup from being separated and ensuring filtering effect.

Description

Technical Field

[0001] This utility model relates to the technical field of dust cup components for vacuum cleaners, and more specifically to a dust cup component that is easy to install and stably assembled. Background Technology

[0002] Vacuum cleaners on the market all have a dust cup structure, which consists of a dust cup and a filter. Its main function is that airflow enters the filter chamber of the dust cup, is filtered by the filter, and then clean air is discharged outward, while dust, particulate matter, etc. are collected in the filter chamber.

[0003] In existing dust cup structures, filter elements are mostly assembled into the dust cup using spring pins, which is cumbersome and costly to assemble. Utility Model Content

[0004] In view of this, the present invention provides a dust cup assembly that is easy to install and has stable assembly.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dust cup assembly, comprising:

[0006] The dust cup has a dust chamber inside.

[0007] The filter assembly is screw-fitted into the dust chamber; the filter assembly can be rotated to a locked position to lock with the dust cup, and can be rotated to an unlocked position to unlock with the dust cup;

[0008] The filter assembly is provided with an elastic protrusion; the inner wall of the dust chamber is provided with a support groove; when the filter assembly rotates relative to the dust cup to the locked position, the elastic protrusion is engaged in the support groove and remains in a compressed state; the elastic protrusion provides elasticity to keep the filter assembly and the dust cup locked.

[0009] In a preferred embodiment of this utility model, the filter element assembly enters the dust chamber along the axis L and rotates to the locked position; the elastic protrusion provides the filter element assembly with elastic force in the direction parallel to the axis L.

[0010] As a preferred embodiment of this utility model, the elastic force supplied by the elastic protrusion is directed in the direction in which the filter assembly is pulled out of the dust chamber.

[0011] As a preferred embodiment of the present invention, a spring sheet is installed on one wall of the filter assembly, and the spring sheet is provided with an elastic protrusion protruding toward the bottom wall of the dust chamber.

[0012] The inner wall of the dust chamber is formed with a support portion protruding towards the center, and the top of the support portion is provided with the support groove.

[0013] As a preferred embodiment of this utility model, the top end of the support portion is provided with an arc-shaped guide surface that guides the elastic protrusion into and out of the support groove.

[0014] As a preferred embodiment of this utility model, a mounting platform is provided on one wall of the filter element assembly, and the two ends of the spring sheet are respectively supported on the mounting platform.

[0015] As a preferred embodiment of this utility model, the spring is installed on the mounting platform by any one of the following methods: screw fastening, snap fastening, welding, or riveting.

[0016] As a preferred embodiment of this utility model, one of the inner wall of the dust chamber and the filter assembly is provided with a locking tongue, and the other is provided with a screw groove.

[0017] As a preferred embodiment of this utility model, the inner wall of the dust chamber is provided with a screw groove; the filter assembly has a bracket, and the locking tongue is provided radially outward on the bracket.

[0018] As a preferred embodiment of this utility model, the swivel groove includes: an opening section, a connecting section, and a limiting section; the opening section communicates with the opening of the dust chamber; the limiting section extends relative to the connecting section toward the opening of the dust chamber; the elastic protrusion provides elastic force for the locking tongue to engage with the limiting section.

[0019] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, the dust cup and filter assembly are assembled by a screw fastener, which is quick and convenient to install. After assembly, the elastic protrusion is locked in the support groove to provide elastic force to keep the filter assembly and dust cup locked together, ensuring that the two are assembled stably. When applied to household appliances such as vacuum cleaners and floor scrubbers, it further prevents the filter assembly and dust cup from detaching and ensures the filtration effect.

[0020] The remaining beneficial technical effects of this utility model are embodied in the specific embodiments. Attached Figure Description

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

[0022] Figure 1 An exploded view of the dust cup assembly;

[0023] Figure 2This is a schematic diagram of the filter assembly in the dust cup assembly;

[0024] Figure 3 This is a top view of the filter assembly in the dust cup assembly.

[0025] Figure 4 This is a cross-sectional view of the dust cup in the dust cup assembly;

[0026] Figure 5 This is a cross-sectional schematic diagram of the dust cup assembly;

[0027] Figure 6 This is another cross-sectional view of the dust cup assembly.

[0028] Explanation of reference numerals in the attached figures

[0029] Dust cup 100; dust chamber 101; screw groove 110; opening section 111; connecting section 112; limiting section 113; filter element assembly 200; filter media 202; sealing ring 203; mounting platform 210; bracket 220; locking tongue 230; spring 300; elastic protrusion 310; support part 400; support groove 410; guide surface 420. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0031] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Dust cup assembly, please refer to Figure 1-6As shown, it includes: dust cup 100 and filter assembly 200;

[0034] like Figure 4 As shown, a dust chamber 101 is formed inside the dust cup 100, and an opening is formed at the top of the dust cup 100. During assembly, the filter element assembly 200 is inserted into the dust chamber 101 from top to bottom. The filter element assembly 200 and the dust cup 100 are assembled with a snap-lock limiter. After the filter element assembly 200 enters the dust chamber 101, the filter element assembly 200 can be rotated to a locked position that locks with the dust cup 100, and can be rotated to an unlocked position that unlocks from the dust cup 100.

[0035] The filter assembly 200 is provided with an elastic protrusion 310; the inner wall of the dust chamber 101 is provided with a support groove 410; when the filter assembly 200 rotates relative to the dust cup 100 to the locked position, the elastic protrusion 310 is engaged in the support groove 410 and remains in a compressed state; the elastic protrusion 310 provides elasticity to keep the filter assembly 200 and the dust cup 100 locked.

[0036] When the filter assembly 200 of this technical solution is assembled into the dust cup 100, the assembly method is simple. After placing the filter assembly 200 into the dust chamber 101, rotate the filter assembly 200 to lock it with the dust cup 100 in a screw-locking manner. During the locking process, the elastic protrusion 310 simultaneously engages with the support groove 410. The elastic force of the elastic protrusion 310 keeps the filter assembly and the dust cup 100 locked. When removing, simply apply force to rotate the filter assembly 200 in the opposite direction. When the filter assembly 200 and the dust cup 100 are unlocked, the elastic protrusion 310 simultaneously leaves the support groove 410, making removal very convenient.

[0037] When the dust cup assembly of this technical solution is applied to structures such as vacuum cleaners and floor scrubbers, the dust cup 100 and the filter assembly 200 are easy to disassemble and assemble, making it convenient to remove the filter assembly 200 for cleaning or replacement. At the same time, during use, the filter assembly 200 will not loosen due to the vibration generated when the vacuum cleaner or floor scrubber moves, nor due to the vibration generated by the suction motor, water pump, or other components of the vacuum cleaner or floor scrubber, making it more stable in use.

[0038] In one implementation, such as Figure 5 As shown, the filter assembly 200 enters the dust chamber 101 along axis L and rotates to the locked position; the elastic protrusion 310 provides elastic force to the filter assembly 200 in the direction parallel to axis L; axis L is approximately Figure 5 The filter element assembly 200 enters the dust chamber 101 downward along the central axis of the dust cup 100. The elastic force supplied by the elastic protrusion 310 points in the direction in which the filter element assembly 200 is pulled out of the dust chamber 101, that is, the elastic force is upward.

[0039] In one embodiment, a spring sheet 300 is installed on one wall of the filter assembly 200. The spring sheet 300 is provided with an elastic protrusion 310 protruding toward the bottom wall of the dust chamber 101. The spring sheet 300 is strip-shaped and is bent at approximately the middle position to form the elastic protrusion 310.

[0040] The inner wall of the dust chamber 101 has a support portion 400 protruding towards the center, and a support groove 410 is provided at the top of the support portion 400; specifically, the dust cup 100 is made of plastic material, and the support portion 400 is integrally formed during the manufacturing process of the dust cup 100, such as... Figure 1 As shown, the support groove 410 is recessed downwards, and the elastic protrusion 310 protrudes downwards, cooperating with the support groove 410.

[0041] In one embodiment, the top end of the support portion 400 is provided with an arc-shaped guide surface 420 that guides the elastic protrusion 310 into and out of the support groove 410, making assembly easier.

[0042] In one implementation, such as Figure 2 As shown, a mounting platform 210 is provided on one wall of the filter assembly 200. The two ends of the spring 300 are respectively supported on the mounting platform 210. One spring 300 corresponds to two mounting platforms 210. The two ends of the spring 300 are provided with connection holes. The spring 300 is installed on the mounting platform 210 by any one of the following methods: screw fastening, snap fastening, welding, or riveting.

[0043] Preferably, in this embodiment, the spring piece 300 is assembled to the mounting platform 210 by means of a rivet connection. After assembly, it continues as follows: Figure 2 As shown, there is a larger elastic deformation gap between the elastic protrusion 310 and the wall surface where the mounting platform 210 is located, and the elastic protrusion 310 can achieve effective deformation.

[0044] Furthermore, the filter assembly 200 includes: a bracket 220 and a filter material 202. The spring 300 is installed on the bracket 220, the locking tongue 230 is formed on the bracket 220, and a sealing ring 203 is provided on the outer surface of the bracket 220 to seal with the inner wall of the dust chamber 101.

[0045] In one embodiment, the inner wall of the dust chamber 101 and the filter assembly 200 are provided with a locking tongue and a locking groove, respectively.

[0046] Preferably, such as Figure 1 As shown, the inner wall of the dust chamber 101 is provided with a screw groove 110; the filter assembly 200 has a bracket 220, and a locking tongue 230 is provided on the bracket 220 protruding radially outward.

[0047] Furthermore, the swivel groove 110 includes: an opening section 111, a connecting section 112, and a limiting section 113; the opening section 111 communicates with the opening of the dust chamber 101; the limiting section 113 extends relative to the connecting section 112 toward the opening of the dust chamber 101; the elastic protrusion 310 provides the locking tongue 230 with elasticity to engage with the limiting section 113.

[0048] Continue as Figure 1 , Figure 5-6 As shown, during assembly, the filter element assembly 200 enters the dust chamber 101 from top to bottom. When the locking tongue 230 enters the opening section 111 and abuts against the end of the opening section 111, the filter element assembly 200 is rotated in the forward direction. The locking tongue 230 enters the connecting section 112. When the locking tongue 230 moves to the end of the connecting section 112, the elastic protrusion 310 is engaged in the support groove 410. At this time, the elastic protrusion 310 is in a compressed deformation state, providing upward elastic force to the filter element assembly 200 in the reverse direction. At this time, the force acting on the filter element assembly 200 is released. Under the action of the upward elastic force provided by the spring piece 300, the locking tongue 230 moves upward and is engaged in the limiting section 113. At this time, the filter element assembly 200 cannot rotate in the reverse direction.

[0049] After the locking tongue 230 moves to the limiting section 113, the elastic protrusion 310 is still in a compressed deformation state, thus keeping the filter assembly 200 and the dust cup 100 in a locked state.

[0050] During the movement of the aforementioned locking tongue 230 within the connecting section 112, the elastic protrusion 310 moves toward the supporting groove 410 under the guidance of the guide surface 420.

[0051] When removing the filter assembly 200, apply force to press down on the filter assembly 200 to make the locking tongue 230 leave the limiting section 113. Apply force to rotate the filter assembly 200 in the opposite direction. After the locking tongue 230 moves from the connecting section 112 to the opening section 111, the user can pull the filter assembly 200 upward.

[0052] Optionally, by designing the length of the top surface of the support part 400, when the locking tongue 230 moves from the connecting section 112 to the opening section 111, the elastic protrusion 310 still presses against the guide surface 420 of the support part 400. After the filter element assembly 200 is released, under the elastic force of the elastic protrusion 310, the filter element assembly 200 automatically pops upward, making disassembly more convenient.

[0053] Furthermore, one locking tongue 230 corresponds to one locking groove 110 to form a set of locking structures, and one spring piece 300 corresponds to one support part 400 to form a set of elastic support structures; in this embodiment, two sets of locking structures and two sets of elastic support structures are provided, and the two sets of locking structures and two sets of elastic support structures are alternately arranged. The two sets of locking structures enable quick assembly of the dust cup 100 and the filter assembly 200, and the two sets of elastic support structures enable stable assembly of the dust cup 100 and the filter assembly 200.

[0054] Optionally, the number of snap-fit ​​structures and elastic support structures can be changed.

[0055] In this technology, the dust cup 100 and the filter assembly 200 can be assembled quickly and stably.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0057] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A dust cup assembly, characterized in that: include: Dust cup (100), with a dust chamber (101) formed inside; The filter assembly (200) is screw-fitted into the dust chamber (101); the filter assembly (200) can be rotated to a locked position to lock with the dust cup (100), and can be rotated to an unlocked position to unlock with the dust cup (100); The filter assembly (200) is provided with an elastic protrusion (310); the inner wall of the dust chamber (101) is provided with a support groove (410); when the filter assembly (200) rotates relative to the dust cup (100) to the locked position, the elastic protrusion (310) is engaged in the support groove (410) and held in a compressed state; the elastic protrusion (310) provides elasticity to keep the filter assembly (200) and the dust cup (100) locked.

2. The dust cup assembly according to claim 1, characterized in that: The filter assembly (200) enters the dust chamber (101) along the axis L and rotates to the locked position; the elastic protrusion (310) provides elastic force to the filter assembly (200) in the direction parallel to the axis L.

3. The dust cup assembly according to claim 2, characterized in that: The elastic force supplied by the elastic protrusion (310) is directed in the direction that the filter assembly (200) is pulled out of the dust chamber (101).

4. The dust cup assembly according to claim 1, characterized in that: A spring sheet (300) is installed on one wall of the filter assembly (200), and the spring sheet (300) is provided with an elastic protrusion (310) protruding toward the bottom wall of the dust chamber (101); The inner wall of the dust chamber (101) is formed with a support part (400) protruding towards the center, and the top of the support part (400) is provided with the support groove (410).

5. The dust cup assembly according to claim 4, characterized in that: The top end of the support (400) is provided with an arc-shaped guide surface (420) that guides the elastic protrusion (310) into and out of the support groove (410).

6. The dust cup assembly according to claim 4, characterized in that: A mounting platform (210) is provided on one wall of the filter assembly (200), and the two ends of the spring (300) are respectively supported on the mounting platform (210).

7. The dust cup assembly according to claim 6, characterized in that: The spring clip (300) is installed on the mounting platform (210) by any one of the following methods: screw fastening, snap fastening, welding, or riveting.

8. The dust cup assembly according to claim 1, characterized in that: The inner wall of the dust chamber (101) and the filter assembly (200) are provided with a locking tongue and a screw groove, respectively.

9. The dust cup assembly according to claim 8, characterized in that: The inner wall of the dust chamber (101) is provided with a screw groove (110); The filter assembly (200) has a bracket (220) on which the locking tongue (230) protrudes radially outward.

10. The dust cup assembly according to claim 9, characterized in that: The swivel groove (110) includes an opening section (111), a connecting section (112), and a limiting section (113); the opening section (111) communicates with the opening of the dust chamber (101); the limiting section (113) extends relative to the connecting section (112) toward the opening of the dust chamber (101); the elastic protrusion (310) provides elastic force for the locking tongue (230) to engage with the limiting section (113).

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