Separating and filtering structure and dust collector thereof

Abstract

The utility model discloses a separating and filtering structure and a dust collector thereof, the separating and filtering structure comprises a shell, and a filter element, a filter screen and an outer cover which are positioned in the shell, the filter element and the filter screen are fixedly mounted at the mounting end of the shell, the filter screen is sleeved outside the filter element, and the outer cover is movably mounted at the mounting end of the shell and is sleeved outside the filter screen; first filter holes are formed in the filter screen, second filter holes are formed in the outer cover, during air draft and dust collection, the outer cover moves to a first position in the direction facing the mounting end of the shell, and during air blowing and self-cleaning, the outer cover moves to a second position in the direction away from the mounting end of the shell, so that the second filter holes and the first filter holes generate relative displacement. During air draft and dust collection, hair is partially wound on the outer cover, and part of the hair penetrates through the second filter holes to be wound on the filter screen; during blowing and self-cleaning, in the process that the outer cover moves to the second position, the hair can be pulled to move relative to the filter screen, and garbage such as the hair wound on the filter screen and the outer cover can be discharged easily.

Description

Technical Field

[0001] This utility model relates to the field of vacuuming technology, and in particular to a separation filter structure and a vacuum cleaner thereof. Background Technology

[0002] Most vacuum cleaners on the market use a detachable filter structure for filtration. In vacuuming mode, the suction draws dust through the filter structure to separate it, while in self-cleaning mode, the airflow blows the dust off the filter. However, with traditional vacuum cleaners, hair and other debris easily get tangled in the filter structure during vacuuming mode, and in self-cleaning mode, this tangled hair affects the separation efficiency and can even clog the filter pores, resulting in a poor user experience. Utility Model Content

[0003] In order to overcome at least one of the defects described in the prior art, the present invention provides a separation filter structure and a vacuum cleaner thereof, so as to solve the problem that the separation effect of the separation filter structure of the existing vacuum cleaner is affected by hair entanglement in the self-cleaning mode, and even the filter holes on the separation filter structure are blocked.

[0004] The present invention provides a technical solution to address the problem. In a first aspect, an embodiment of the present invention discloses a separation and filtration structure, comprising a housing and a filter element, a filter screen, and an outer cover located within the housing. The filter element and the filter screen are fixedly installed on the mounting end of the housing, with the filter screen sleeved over the filter element. The outer cover is movably installed on the mounting end of the housing and sleeved over the filter screen. The filter screen has a first filter hole, and the outer cover has a second filter hole. During dust extraction, the outer cover moves to a first position in the direction towards the mounting end of the housing. During self-cleaning, the outer cover moves to a second position in the direction away from the mounting end of the housing, thereby causing a relative displacement between the second filter hole and the first filter hole.

[0005] As an optional implementation, in an embodiment of the first aspect of this utility model, the area of ​​the second filter hole is larger than the area of ​​the first filter hole.

[0006] As an optional implementation, in an embodiment of the first aspect of the present invention, a scraper is provided on the inner wall surface of the outer cover facing the filter screen, the scraper being used to scrape off dust on the filter screen when the outer cover moves to a second position in a direction away from the mounting end of the outer shell.

[0007] As an optional implementation, in an embodiment of the first aspect of this utility model, the mounting end of the housing is provided with an air inlet, and the separation filter structure further includes an end cap, the end cap covering the ends of the filter element and the filter screen away from the mounting end of the housing, the end cap being provided with an air outlet, and the air inlet, the filter element and the air outlet being sequentially connected to form a first airflow channel for self-cleaning by blowing air.

[0008] As an optional implementation, in an embodiment of the first aspect of this utility model, the end of the outer cover near the mounting end of the outer shell is bent outward to form a first bending plate. When the outer cover is in the first position, the first bending plate closes the air inlet. During self-cleaning by blowing air, the first bending plate moves under the action of the airflow to drive the outer cover from the first position to the second position.

[0009] As an optional implementation, in an embodiment of the first aspect of the present invention, the outer shell has a first limiting portion and a second limiting portion formed at intervals, the first bending plate is located between the first limiting portion and the second limiting portion, the first limiting portion is used to limit the first bending plate when the outer shell moves to the first position, and the second limiting portion is used to limit the first bending plate when the outer shell moves to the second position.

[0010] As an optional implementation, in an embodiment of the first aspect of this utility model, the outer shell includes a cover and a body with an opening. The cover seals the opening of the body. The filter element and the filter screen are fixedly installed on the cover. The air inlet and the first limiting part are provided on the cover, and the second limiting part is provided on the body.

[0011] As an optional implementation, in an embodiment of the first aspect of this utility model, the separation filter structure further includes a reset spring, a third limiting part is provided inside the outer shell, the reset spring is sleeved outside the outer cover, one end of which abuts against the third limiting part and the other end of which abuts against the first bending plate.

[0012] As an optional implementation, in an embodiment of the first aspect of this utility model, the end of the outer cover away from the mounting end of the outer shell is bent inward to form a second bending plate whose shape is adapted to the end cover. When the outer cover is moved to the first position, the second bending plate closes the air outlet. When the outer cover is moved to the second position, the second bending plate opens the air outlet.

[0013] Secondly, this utility model discloses a vacuum cleaner, including a vacuum cleaner body and a separation filter structure as described above, wherein the separation filter structure is disposed on the vacuum cleaner body.

[0014] Implementing the embodiments of this utility model will have the following beneficial effects:

[0015] This utility model employs a separate filtration structure comprising a housing and a filter element, a filter screen, and an outer cover located within the housing. The filter element and filter screen are fixedly installed at the mounting end of the housing, with the filter screen covering the filter element. The outer cover is movably installed at the mounting end of the housing and covers the filter screen. The filter screen has a first filter hole, and the outer cover has a second filter hole. During vacuuming, the outer cover moves to a first position towards the mounting end of the housing. During self-cleaning, the outer cover moves to a second position away from the mounting end of the housing, causing a relative displacement between the second and first filter holes. With this design, during vacuuming, some hair becomes entangled on the outer cover, while some passes through the second filter hole and becomes entangled on the filter screen. During self-cleaning, as the outer cover moves to the second position, it pulls the hair relative to the filter screen, helping to remove hair and other debris entangled on the filter screen and outer cover, thus causing the hair to fall out. Attached Figure Description

[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the separation and filtration structure in an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the outer cover of the separation filter structure in this embodiment of the present invention, moved to the first position.

[0019] Figure 3 A cross-sectional view of the outer cover of the separation filter structure in this embodiment of the present invention moved to the second position. Figure 1 ;

[0020] Figure 4 A cross-sectional view of the outer cover of the separation filter structure in this embodiment of the present invention moved to the second position. Figure 2 .

[0021] The meanings of the reference numerals in the attached figures are as follows:

[0022] 1-Outer shell; 11-Shell cover; 111-Air inlet; 112-First limiting part; 12-Shell body; 121-Second limiting part; 2-Filter element; 3-Filter screen; 31-First filter hole; 4-Outer cover; 41-Second filter hole; 42-First bending plate; 43-Scraper; 44-Second bending plate; 5-End cap; 51-Air outlet; 6-Reset spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0026] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0027] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0028] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0029] Please refer to the following: Figure 1 and Figure 4 This utility model discloses a vacuum cleaner, including a vacuum cleaner body (not shown) and a separate filter structure disposed on the vacuum cleaner body. The separate filter structure of this solution includes a shell 1 and a filter element 2, a filter screen 3, and an outer cover 4 located inside the shell 1. The filter element 2 and the filter screen 3 are fixedly installed on the mounting end of the shell 1, with the filter screen 3 sleeved over the filter element 2. The outer cover 4 is movably installed on the mounting end of the shell 1 and sleeved over the filter screen 3. The filter screen 3 has a first filter hole 31, and the outer cover 4 has a second filter hole 41. During vacuuming, the outer cover 4 moves to a first position in the direction towards the mounting end of the shell 1 (e.g., ...). Figure 2 As shown), during self-cleaning by blowing air, the outer cover 4 moves to the second position in the direction away from the mounting end of the outer casing 1 (as shown). Figure 3 As shown in the diagram, the second filter hole 41 is displaced relative to the first filter hole 31. With this design, when the fan is sucking in the dust, some hair gets tangled on the outer cover 4, and some passes through the second filter hole 41 and gets tangled on the filter screen 3. When the fan is blowing for self-cleaning, as the outer cover 4 moves to the second position, it can pull the hair, causing the hair to move relative to the filter screen 3, which helps to remove the hair and other debris tangled on the filter screen 3 and the outer cover 4, thus helping the hair to fall off.

[0030] Furthermore, the area of ​​the second filter hole 41 is larger than the area of ​​the first filter hole 31. With this design, larger pieces of trash can be intercepted outside the outer cover 4, while medium-sized pieces of trash can be intercepted outside the filter screen 3.

[0031] Specifically, both the first filter hole 31 and the second filter hole 41 are circular holes. The diameter of the first filter hole 31 is less than 0.5 mm, and the diameter of the second filter hole 41 is greater than 0.5 mm. The diameter of the first filter hole 31 can be 0.45 mm, 0.4 mm, 0.35 mm, etc., and a suitable diameter can be selected according to the actual situation during design; it is not limited here. The diameter of the second filter hole 41 can be 0.55 mm, 0.6 mm, 0.65 mm, etc., and a suitable diameter can be selected according to the actual situation during design; it is not limited here. Furthermore, the first filter hole 31 and the second filter hole 41 can also be elongated holes, etc., and this is not limited here.

[0032] Preferably, a scraper 43 is provided on the inner wall surface of the outer cover 4 facing the filter screen 3. The scraper 43 is used to scrape off the dust on the filter screen 3 when the outer cover 4 moves to a second position in a direction away from the mounting end of the outer casing 1. With this design, the scraper 43 can further improve the dust removal effect on the outer wall surface of the filter screen 3.

[0033] In some embodiments, the mounting end of the housing 1 is provided with an air inlet 111, and the separation filter structure also includes an end cap 5. The end cap 5 covers the ends of the filter element 2 and the filter screen 3 that are away from the mounting end of the housing 1. The end cap 5 is provided with an air outlet 51. The air inlet 111, the filter element 2, and the air outlet 51 are connected in sequence to form a first airflow channel for self-cleaning airflow (e.g., ...). Figure 3 (As shown in X). With this design, during self-cleaning, the air flows along the first airflow channel, that is, it enters the filter element 2 from the air inlet 111 to carry away the dust on the filter element 2, and is blown out from the air outlet 51 to discharge the dust.

[0034] In some embodiments, the end of the outer cover 4 near the mounting end of the outer shell 1 is bent outward to form a first bending plate 42. When the outer cover 4 is in the first position, the first bending plate 42 closes the air inlet 111. During self-cleaning, the first bending plate 42 moves under the action of airflow to move the outer cover 4 from the first position to the second position. With this design, on the one hand, when vacuuming, the first bending plate 42 closes the air inlet 111, that is, closes the first airflow channel, thereby preventing dust from entering the air inlet 111 during vacuuming; on the other hand, during self-cleaning, the first bending plate 42 moves under the action of airflow, and air enters the filter element 2 from the air inlet 111 and is discharged through the air outlet 51, taking away the dust on the filter element 2; furthermore, the movement of the outer cover 4 can be achieved under the action of airflow, which is simple in structure and convenient to use.

[0035] Furthermore, to prevent the outer cover 4 from leaving the first and second positions when moving back and forth between the first and second positions, the outer shell 1 is provided with a first limiting part 112 and a second limiting part 121 spaced apart. The first limiting part 112 is used to limit the first bending plate 42 when the outer cover 4 moves to the first position, and the second limiting part 121 is used to limit the first bending plate 42 when the outer cover 4 moves to the second position, so that the outer cover 4 moves only between the first and second positions.

[0036] Furthermore, the outer casing 1 includes a casing cover 11 and a casing body 12 with an opening. The casing cover 11 covers the opening of the casing body 12. The filter element 2 and the filter screen 3 are fixedly installed on the casing cover 11. The air inlet 111 and the first limiting part 112 are provided on the casing cover 11, and the second limiting part 121 is provided on the casing body 12.

[0037] In some embodiments, considering that the outer cover 4 is driven to the second position by airflow, in order for the outer cover 4 to return from the second position to the first position, the separation filter structure also includes a return spring 6. A third limiting part is provided inside the outer shell 1, and the return spring 6 is sleeved on the outer cover 4, with one end abutting against the third limiting part and the other end abutting against the first bending plate 42. With this design, when the outer cover 4 moves from the first position to the second position, the first bending plate 42 squeezes the return spring 6; when the outer cover 4 moves from the second position to the first position, the return spring 6 extends and retracts to push the first bending plate 42, and the first bending plate 42 drives the outer cover 4 to return to its original position.

[0038] In some embodiments, the end of the outer cover 4 furthest from the mounting end of the outer shell 1 is bent inward to form a second bending plate 44 whose shape is adapted to the end cover 5. When the outer cover 4 is moved to the first position, the second bending plate 44 closes the air outlet 51; when the outer cover 4 is moved to the second position, the second bending plate 44 opens the air outlet 51. With this design, on the one hand, when the air is being drawn in for dust extraction, the second bending plate 44 closes the air outlet 51, that is, it closes the first airflow channel; on the other hand, when the air is being blown for self-cleaning, the second bending plate 44 opens the air outlet 51, and the dust in the filter element 2 is discharged through the air outlet 51.

[0039] The present invention provides a vacuum cleaner by setting a separate filtration structure including a shell 1 and a filter element 2, a filter screen 3, and an outer cover 4 located inside the shell 1. The filter element 2 and the filter screen 3 are fixedly installed at the mounting end of the shell 1 and the filter screen 3 is sleeved on the outside of the filter element 2. The outer cover 4 is movably installed at the mounting end of the shell 1 and sleeved on the outside of the filter screen 3. The filter screen 3 is provided with a first filter hole 31 and the outer cover 4 is provided with a second filter hole 41. When vacuuming, the outer cover 4 moves to a first position in the direction toward the mounting end of the shell 1. When self-cleaning by blowing, the outer cover 4 moves to a second position in the direction away from the mounting end of the shell 1, so that the second filter hole 41 and the first filter hole 31 are relatively displaced. With this design, when the fan is sucking in the dust, some of the hair gets tangled on the outer cover 4 and some passes through the second filter hole 41 and gets tangled on the filter screen 3. When the fan is blowing and cleaning itself, as the outer cover 4 moves to the second position, it can pull the hair relative to the filter screen 3, which helps to remove the hair and other debris tangled on the filter screen 3 and the outer cover 4, thus causing the hair to fall off.

[0040] The above provides a detailed description of a separation filter structure and its vacuum cleaner disclosed in the embodiments of this utility model. This article uses specific examples to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the separation filter structure and its vacuum cleaner and its core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A separation and filtration structure, characterized in that, The device includes a housing and a filter element, a filter screen, and an outer cover located within the housing. The filter element and the filter screen are fixedly installed on the mounting end of the housing, with the filter screen sleeved over the filter element. The outer cover is movably installed on the mounting end of the housing and sleeved over the filter screen. The filter screen has a first filter hole, and the outer cover has a second filter hole. During vacuuming, the outer cover moves to a first position in the direction toward the mounting end of the housing. During self-cleaning, the outer cover moves to a second position in the direction away from the mounting end of the housing, so that the second filter hole and the first filter hole are relatively displaced.

2. The separation and filtration structure according to claim 1, characterized in that: The area of ​​the second filter hole is larger than the area of ​​the first filter hole.

3. The separation and filtration structure according to claim 1, characterized in that: The outer cover has a scraper on its inner wall facing the filter screen. The scraper is used to scrape dust off the filter screen when the outer cover moves to a second position in a direction away from the mounting end of the outer shell.

4. The separation and filtration structure according to any one of claims 1 to 3, characterized in that: The housing has an air inlet at the mounting end, and the separation filter structure also includes an end cap. The end cap covers the ends of the filter element and the filter screen that are away from the mounting end of the housing. The end cap has an air outlet. The air inlet, the filter element and the air outlet are connected in sequence to form a first airflow channel for self-cleaning by blowing air.

5. The separation and filtration structure according to claim 4, characterized in that: The end of the outer cover near the mounting end of the outer shell is bent outward to form a first bending plate. When the outer cover is in the first position, the first bending plate closes the air inlet. During self-cleaning by blowing air, the first bending plate moves under the action of the airflow to drive the outer cover from the first position to the second position.

6. The separation and filtration structure according to claim 5, characterized in that: The outer shell has a first limiting part and a second limiting part that are spaced apart. The first bending plate is located between the first limiting part and the second limiting part. The first limiting part is used to limit the first bending plate when the outer shell moves to the first position, and the second limiting part is used to limit the first bending plate when the outer shell moves to the second position.

7. The separation and filtration structure according to claim 6, characterized in that: The outer casing includes a cover and a main body with an opening. The cover seals the opening of the main body. The filter element and the filter screen are fixedly installed on the cover. The air inlet and the first limiting part are provided on the cover, and the second limiting part is provided on the main body.

8. The separation and filtration structure according to claim 5, characterized in that: The separation and filtration structure also includes a reset spring. A third limiting part is provided inside the outer shell. The reset spring is sleeved outside the outer cover, with one end abutting against the third limiting part and the other end abutting against the first bending plate.

9. The separation and filtration structure according to claim 4, characterized in that: The end of the outer cover away from the mounting end of the outer shell is bent inward to form a second bending plate whose shape is adapted to the end cover. When the outer cover is moved to the first position, the second bending plate closes the air outlet. When the outer cover is moved to the second position, the second bending plate opens the air outlet.

10. A vacuum cleaner, characterized in that, It includes a vacuum cleaner body and a separation filter structure as described in any one of claims 1 to 9, wherein the separation filter structure is disposed on the vacuum cleaner body.

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