Dust-gas separating and filtering system

Abstract

The utility model discloses a dust-gas separating and filtering system and relates to the technical field of dust-gas separation. According to the dust-gas separation and filtration system, an annular wall is arranged in a dust cup, and an inner cavity of the dust cup is divided into an inner cavity body and an outer cavity body; the filter screen cover is arranged on the inner cavity to form the spiral flow guide air channel, so that airflow flows along the spiral flow guide air channel, and unexpected substances enter the outer cavity through the separation opening under the action of centrifugal force to be collected. Meanwhile, a dust blocking piece is arranged at the end, close to the dust cup cover, of the filter screen cover, a gap is formed between the dust blocking piece and the annular wall, and unexpected substances can enter the bottom of the inner cavity through the gap between the dust blocking piece and the annular wall; the dust blocking piece can prevent air flow from directly impacting unexpected substances at the bottom of the inner cavity to cause the unexpected substances to fly, and meanwhile, the unexpected substances flying are blocked, so that the risk that the unexpected substances are raised again is greatly reduced, finally, the blocking speed of the filter screen is slowed down, the replacement or cleaning interval of the filter screen is prolonged, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust and gas separation, in particular to a dust and gas separation and filtering system. Background Art

[0002] As people's demand for home cleanliness continues to rise, cleaning appliances are becoming essential for furniture cleaning. These appliances typically include vacuum cleaners, dust mite removers, and floor scrubbers. These appliances primarily use a motor to generate airflow, which then suctions surfaces and separates and filters the airflow for dust and air.

[0003] In traditional dust-gas separation and filtration systems, dust entering the dust cup is easily lifted up again by the incoming airflow, causing the airflow entering the filter to be mixed with more unwanted substances, causing the filter to be quickly clogged, and ultimately requiring frequent replacement or cleaning of the filter, resulting in a poor user experience. Utility Model Content

[0004] The purpose of this utility model is to address the defects and shortcomings of the existing technology and provide a dust and gas separation filtration system, which has the advantages of slowing down the clogging speed of the filter, extending the interval for replacing or cleaning the filter, and improving the user experience.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a dust and gas separation and filtration system, comprising:

[0006] The dust cup has an axially extending cavity, the inner side wall of the dust cup is provided with a mounting ring, an annular wall is provided in the cavity, one end of the annular wall is connected to the inner side of the mounting ring, and the other end extends axially away from the mounting ring, the annular wall cooperates with the mounting ring to divide the cavity into an inner cavity and an outer cavity; an air inlet is provided on the outer peripheral side of the dust cup, the air inlet passes through the outer cavity and is connected to the inner cavity, and a separation port connecting the inner cavity and the outer cavity is provided on the annular wall;

[0007] A dust cup cover, wherein the dust cup cover abuts against an end surface of the dust cup away from the mounting ring and an end surface of the annular wall away from the mounting ring, so that the inner cavity and the outer cavity are independent of each other;

[0008] a filter cover installed in the inner cavity, and having one end assembled with the mounting ring, the filter cover comprising: a filter cover body, a filter cavity disposed in the filter cover body, and a guide vane located on the outer wall of the filter cover body, the guide vane, the outer wall of the filter cover body, and the annular wall forming a spiral guide air duct, the separation port being in communication with the spiral guide air duct;

[0009] A dust shield is provided at one end of the filter cover close to the dust cup cover, with a gap between the dust shield and the annular wall to prevent dust that falls into the inner cavity from floating back to the filter cover;

[0010] And, the filter screen is sealed and connected to a side of the filter cavity away from the dust cup cover, and is communicated with the filter cavity.

[0011] The utility model is further provided that the dust shield is detachably arranged on the filter cover.

[0012] The utility model is further provided that the dust shield is made of a flexible material.

[0013] The utility model further arranges that the dust shield is arranged as an arc-shaped piece, and the dust shield is inclined or bent from the center to the surroundings in a direction close to the dust cup cover.

[0014] The utility model is further provided with a dust-blocking ring on the inner side of the annular wall and on the side of the dust-blocking piece close to the dust cup cover, and the dust-blocking ring is inclined or bent in the direction close to the dust cup cover.

[0015] The utility model is further provided that the filter cover body includes a separation section and a filter section, the guide plate is located on the outside of the separation section, and the filter section has a plurality of filter holes, and the air flow enters the filter cavity through the filter holes.

[0016] The present invention is further provided with a guide piece on the outer side wall of the filter cover body corresponding to the position of the separation opening to guide the airflow to the separation opening.

[0017] The utility model is further provided that the filter cover is detachably connected to the mounting ring.

[0018] The filter screen is detachably connected to one end of the filter screen cover away from the dust cup cover, and a sealed communication channel is formed between the filter screen and the filter cavity.

[0019] The present invention further provides that the annular wall includes: a first section located on the side of the connecting channel, and a second section of the first section close to the dust cup cover side, and the first section and the second section are detachably connected.

[0020] The utility model is further provided that the dust cup cover is detachable or movably mounted on the side of the dust cup away from the mounting ring, and the dust cup cover can be opened to clean the outer cavity and the inner cavity;

[0021] The dust cup cover is provided with: a first isolation groove that cooperates with the end surface of the dust cup away from the mounting ring, and a second isolation groove that cooperates with the end surface of the annular wall away from the mounting ring.

[0022] After adopting the above technical solution, the beneficial effects of the utility model are:

[0023] In the present invention, a dust shield is provided at one end of the filter cover close to the dust cup cover, and there is a gap between the dust shield and the annular wall. Undesirable substances (dust, garbage) will enter the bottom of the inner cavity (i.e., between the dust shield and the dust cup cover) through the gap between the dust shield and the annular wall. The dust shield will prevent the airflow from directly impacting the unwanted substances at the bottom of the inner cavity and causing them to fly, and at the same time block the flying unwanted substances, thereby greatly reducing the risk of unwanted substances being lifted up again, and ultimately slowing down the clogging speed of the filter, extending the interval for replacing or cleaning the filter, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0027] Figure 3 It corresponds to Figure 2 , cross-section view in AA direction;

[0028] Figure 4 It is a schematic diagram of the structure explosion of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the filter screen, filter screen cover and dust shield of the utility model;

[0030] Figure 6 It is a structural diagram of the filter cover of the utility model;

[0031] Figure 7 It is a structural schematic diagram of the dust cup and the dust cup cover of the utility model.

[0032] Explanation of reference numerals: 100, dust cup; 200, dust cup cover; 300, filter cover; 400, dust shield; 500, filter; 110, mounting ring; 600, annular wall; 700, inner cavity; 800, outer cavity; 120, air inlet; 610, separation port; 310, filter cover body; 320, filter cavity; 330, guide vane; 900, spiral guide air duct; 311, plug port; 410, plug-in column; 620, dust shield ring; 312, separation section; 313, filter section; 314, filter hole; 315, mounting ring; 630, first section; 640, second section; 510, snap-on column; 631, hanging hole; 641, hanging block; 210, first isolation groove; 220, second isolation groove; 130, hinged seat; 140, snap-fit ​​seat; 230, hinged head; 240, snap-fit ​​head. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0035] This embodiment relates to a dust and gas separation and filtration system, which is mainly used in cleaning appliances that need to generate airflow through a motor to clean objects, such as vacuum cleaners, mite removers, floor scrubbers, etc. The dust and gas separation and filtration system 100 is a mechanism for filtering airflow with unwanted substances (dust, garbage, etc.), so that the unwanted substances remain and clean gas is discharged. It should be noted that in this embodiment, the unwanted substances are described as dust and garbage. Figure 1-7 As shown, the dust and gas separation and filtration system includes: a dust cup 100, a dust cup cover 200, a filter cover 300, a dust shield 400 and a filter 500.

[0036] Specifically, the dust cup 100 has an axially extending cavity. A mounting ring 110 is protruding from the inner sidewall of one side of the dust cup 100. An annular wall 600 is provided in the cavity. One end of the annular wall 600 is connected to the inner side of the mounting ring 110, and the other end extends axially away from the mounting ring 110. The annular wall 600 cooperates with the mounting ring 110 to divide the cavity into an inner cavity 700 and an outer cavity 800. An air inlet 120 is provided on the outer circumference of the dust cup 100. The air inlet 120 passes through the outer cavity 800 and communicates with the inner cavity 700 to form an air inlet channel. A separation port 610 is provided on the annular wall 600 to communicate with the inner cavity 700 and the outer cavity 800.

[0037] The dust cup cover 200 can be detachably or movably mounted on the side of the dust cup 100 away from the mounting ring 110, and the dust cup cover 200 and the dust cup 100 have an open state and a closed state. When the dust cup cover 200 and the dust cup 100 are in the closed state, the end surface of the dust cup cover 200 and the dust cup 100 away from the mounting ring 110 and the end surface of the annular wall 600 away from the mounting ring 110 are in contact with each other, making the inner cavity 700 and the outer cavity 800 independent of each other; when the dust cup cover 200 and the dust cup 100 are in the closed state, the outer cavity 800 and the inner cavity 700 can be opened for cleaning;

[0038] The filter cover 300 is installed in the inner cavity 700 and assembled with the mounting ring 110 at one end. The filter cover 300 includes: the filter cover 300 body, the filter cavity 320 disposed in the filter cover 300 body, and the guide plate 330 located on the outer wall of the filter cover 300 body. The guide plate 330, the outer wall of the filter cover 300 body, and the annular wall 600 form a spiral guide air duct 900. The separation port 610 is connected to the spiral guide air duct 900. The dust shield 400 is disposed at one end of the filter cover 300 near the dust cup cover 200. There is a gap between the dust shield 400 and the annular wall 600, that is, the radius of the dust shield 400 is smaller than the inner diameter of the annular wall 600. The dust shield 400 prevents dust that falls into the inner cavity 700 from floating back to the filter cover 300.

[0039] The filter screen 500 is sealed and connected to the side of the filter chamber 320 away from the dust cup cover 200, and is connected to the filter chamber 320, so that the airflow in the filter chamber 320 can be discharged through the filter screen 500 to achieve a good filtering effect. The structure of the filter screen 500 belongs to the prior art and will not be described in detail here.

[0040] It should be noted that the air flows into the inner cavity 700121 from the air inlet 120 and the spiral guide air duct 90030, and the air flow flowing through the spiral guide air duct 900 moves along a spiral trajectory, so that the undesirable substances mixed in the air flow move along the annular wall 600 under the action of centrifugal force. When the undesirable substances move to the position of the separation port 610, a large amount of undesirable substances continue to enter the outer cavity 800 through the separation port 610 under the action of centrifugal force, and are finally precipitated and collected in the outer cavity 800; a very small part of the undesirable substances enter the inner cavity 700 along with the air flow, which greatly The speed of unwanted matter accumulating in the inner cavity 700 is reduced; and the unwanted matter will enter the bottom of the inner cavity 700 (i.e., between the dust shield 400 and the dust cup cover 200) through the gap between the dust shield 400 and the annular wall 600. The dust shield 400 will prevent the airflow from directly impacting the unwanted matter at the bottom of the inner cavity 700 and causing it to fly, and at the same time block the flying unwanted matter, thereby greatly reducing the risk of the unwanted matter being lifted up again, and ultimately slowing down the clogging speed of the filter 500, extending the interval for replacing or cleaning the filter 500, and improving the user experience.

[0041] In this embodiment, the dust shield 400 is detachably mounted on the filter cover 300. Multiple plug-in ports 311 are evenly distributed along the circumference of one end of the filter cover 300 near the dust cup cover 200. Multiple plug-in posts 410 are provided on the dust shield 400 corresponding to the plug-in ports 311. The plug-in ports 311 cooperate with the plug-in posts 410 to achieve a detachable connection between the dust shield 400 and the filter cover 300, thereby facilitating the cleaning of unwanted substances on the dust shield 400 and ensuring the filtering effect of the dust-gas separation and filtration system. Of course, in other embodiments, the dust shield 400 can also be mounted on the filter cover 300 using other detachable structures.

[0042] As a preferred embodiment, the dust shield 400 is constructed of a flexible material, allowing airflow to deform the dust shield 400, thereby increasing the gap between the dust shield 400 and the annular wall 600 and facilitating the fall of unwanted matter to the bottom of the dust cup 100. In this embodiment, the dust shield 400 is configured as an arc-shaped piece, tilting or curving from the center toward the dust cup cover 200, so that the dust shield 400 forms a trumpet-shaped shape, facing the dust cup cover 200. When airflow is directed toward the dust cup cover 200, it pushes the dust shield 400 downward to increase the gap between the dust shield 400 and the annular wall 600, facilitating the fall of unwanted matter to the bottom of the dust cup 100. However, when airflow rebounds toward the filter 500, the dust shield 400 is less likely to deform, maintaining a small gap between the dust shield 400 and the annular wall 600, thereby preventing unwanted matter from the inner cavity 700 from flying upward and slowing the clogging of the filter 500.

[0043] In this embodiment, a dust shield ring 620 is further provided on the inner side of the annular wall 600 and on the side of the dust shield sheet 400 close to the dust cup cover 200. The dust shield ring 620 is tilted or curved in the direction close to the dust cup cover 200. The dust shield ring 620 and the dust shield sheet 400 are staggered vertically to block the gap between the dust shield sheet 400 and the annular wall 600, preventing unwanted substances from returning to the filter cover 300 through the gap between the dust shield sheet 400 and the annular wall 600, thereby improving the anti-flying effect. The dust shield ring 620 is tilted in the direction close to the dust cup cover 200, which not only facilitates the smooth flow of air to bring unwanted substances to the bottom of the inner cavity 700, but also better prevents unwanted substances from flying upwards.

[0044] In this embodiment, the filter cover 300 body includes a separation section 312 and a filter section 313. The guide plate 330 is provided on the outer wall of the separation section 312. The filter section 313 has a plurality of filter holes 314. The airflow enters the filter cavity 320 through the filter holes 314. As a preferred solution, the filter cover 300 body is inserted into the mounting ring 110. The upper end of the filter cover 300 is provided with a mounting ring 315, which is sealed and mounted above the mounting ring 110 to achieve a detachable connection between the filter cover 300 and the dust cup 100, so as to facilitate the replacement or cleaning of the filter cover 300. Of course, in other embodiments, the filter cover 300 can also be mounted on the dust cup 100 through other detachable structures.

[0045] As a preferred solution, a guide plate 340 is provided on the outer wall of the filter cover 300 body, corresponding to the separation port 610, to guide the airflow to the separation port 610, so that more unwanted substances can enter the outer cavity 800 through the separation port 610, reducing the amount of unwanted substances entering the inner cavity 700, thereby slowing down the clogging speed of the filter cover 300 and the filter screen 500.

[0046] In this embodiment, the filter 500 is detachably connected to the end of the filter cover 300 away from the dust cup cover 200, forming a sealed communication channel with the filter cavity 320. This allows airflow within the filter cavity 320 to be discharged through the filter 500, achieving a good filtration effect. The filter 500 is disposed at one end of the filter cover 300 and does not extend into the filter cavity 320 within the filter cover 300. This increases the distance between the airflow entering the filter cavity 320 and the filter 500 for dust and gas separation, thereby reducing the rate of clogging of the filter 500. As a preferred embodiment, the filter 500 is provided with a plurality of snap-in posts 510 on the end near the filter cover 300. The plurality of snap-in posts 510 snap into place within the filter cavity 320 of the filter cover 300 to facilitate installation of the filter 500. The filter 500 also seals against the inner wall of the dust cup 100, ensuring that airflow within the filter cavity 320 flows toward the filter 500, achieving a good filtration effect.

[0047] In this embodiment, the annular wall 600 includes a first section 630 located on the communication channel side, and a second section 640 located on the side of the first section 630 closer to the dust cup cover 200. The first section 630 and the second section 640 are detachably connected, and the second section 640 can be removed for cleaning to ensure the cleanliness of the inner cavity 700 and the outer cavity 800, thereby improving filtration efficiency and reducing the clogging rate of the filter screen 500. In this embodiment, a plurality of hanging holes 631 are provided on the inner circumference of the first section 630, and a plurality of hanging blocks 641 are provided on the second section 640 corresponding to the hanging holes 631. The hanging blocks 641 cooperate with the hanging holes 631 to achieve a detachable connection between the first section 630 and the second section 640.

[0048] In this embodiment, the dust cup cover 200 is provided with: a first isolation groove 210 that cooperates with the end surface of the dust cup 100 away from the mounting ring 110, and a second isolation groove 220 that cooperates with the end surface of the annular wall 600 away from the mounting ring 110. This improves the sealing effect of the dust cup cover 200, preventing unwanted substances from leaking out of the dust cup 100, and improves the isolation effect between the inner cavity 700 and the outer cavity 800, preventing unwanted substances from the outer cavity 800 from entering the inner cavity 700 through the dust cup cover 200, which could easily cause the unwanted substances to clog the filter cover 300 and the filter screen 500. As a preferred embodiment, a hinge seat 130 and a snap-fit ​​seat 140 are provided on the outer wall of the dust cup 100 away from the mounting ring 110. The dust cup cover 200 is provided with a hinge head 230 and a snap-fit ​​head. The hinge head 230 and the hinge seat 130 are rotatably assembled. The snap-fit ​​head is used to adapt to the snap-fit ​​seat 140 to fix the other end of the dust cup cover 200 on the dust cup 100.

[0049] As a preferred solution, sealing rings are provided between the mounting ring 110 and the filter cover 300, between the filter 500 and the inner wall of the dust cup 100, between the first section 630 and the second section 640 of the annular wall 600, between the first isolation groove 210 and the end face of the dust cup 100 away from the mounting ring 110, and between the second isolation groove 220 and the end face of the annular wall 600 away from the mounting ring 110, so as to ensure that the airflow flows along the set path and achieve good dust and gas separation and filtering effects.

[0050] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A dust and gas separation and filtration system, characterized in that: include: A dust cup (100) has an axially extending cavity, an inner side wall of the dust cup (100) is provided with a mounting ring (110), an annular wall (600) is provided in the cavity, one end of the annular wall (600) is connected to the inner side of the mounting ring (110), and the other end extends axially away from the mounting ring (110), and the annular wall (600) cooperates with the mounting ring (110) to divide the cavity into an inner cavity (700) and an outer cavity (800); an air inlet (120) is provided on the outer peripheral side of the dust cup (100), and the air inlet (120) passes through the outer cavity (800) and communicates with the inner cavity (700), and a separation port (610) is provided on the annular wall (600) for communicating with the inner cavity (700) and the outer cavity (800); A dust cup cover (200), wherein the dust cup cover (200) abuts against an end surface of the dust cup (100) on a side away from the mounting ring (110) and an end surface of the annular wall (600) on a side away from the mounting ring (110), so that the inner cavity (700) and the outer cavity (800) are independent of each other; A filter cover (300) is installed in the inner cavity (700), and one end of the filter cover (300) is assembled with the mounting ring (110). The filter cover (300) comprises: a filter cover (300) body, a filter cavity (320) arranged in the filter cover (300) body, and a guide plate (330) located on the outer wall of the filter cover (300) body. The guide plate (330), the outer wall of the filter cover (300) body, and the annular wall (600) are arranged to form a spiral guide air duct (900). The separation port (610) is connected to the spiral guide air duct (900). A dust shield (400) is provided at one end of the filter cover (300) close to the dust cup cover (200), with a gap between the dust shield (400) and the annular wall (600) to prevent dust falling into the inner cavity (700) from floating back to the filter cover (300); Furthermore, the filter screen (500) is sealed and connected to a side of the filter cavity (320) away from the dust cup cover (200), and is in communication with the filter cavity (320).

2. The dust and gas separation and filtration system according to claim 1, characterized in that: The dust shield (400) is detachably arranged on the filter cover (300).

3. The dust and gas separation and filtration system according to claim 2, characterized in that: The dust shield (400) is made of a flexible material.

4. The dust and gas separation and filtration system according to claim 3, characterized in that: The dust shield (400) is configured as an arc-shaped piece, and the dust shield (400) is inclined or curved from the center to the periphery in a direction close to the dust cup cover (200).

5. The dust and gas separation and filtration system according to claim 4, characterized in that: A dust shield ring (620) is provided on the inner side of the annular wall (600) and on the side of the dust shield sheet (400) close to the dust cup cover (200), and the dust shield ring (620) is inclined or curved in a direction close to the dust cup cover (200).

6. The dust and gas separation and filtration system according to claim 1, characterized in that: The filter cover (300) body comprises a separation section (312) and a filter section (313); the guide plate (330) is located outside the separation section (312); the filter section (313) has a plurality of filter holes (314); and airflow enters the filter cavity (320) through the filter holes (314).

7. The dust and gas separation and filtration system according to claim 1, characterized in that: A guide piece (340) is provided on the outer side wall of the filter cover (300) body, corresponding to the position of the separation opening (610), so as to guide the airflow toward the separation opening (610).

8. The dust and gas separation and filtration system according to claim 1, characterized in that: The filter cover (300) is detachably connected to the mounting ring (110). The filter screen (500) is detachably connected to one end of the filter screen cover (300) away from the dust cup cover (200), and a sealed communication channel is formed between the filter screen cover (500) and the filter cavity (320).

9. The dust and gas separation and filtration system according to claim 8, characterized in that: The annular wall (600) includes: a first section (630) located on the side of the connecting channel, and a second section (640) of the first section (630) close to the dust cup cover (200), and the first section (630) and the second section (640) are detachably connected.

10. The dust and gas separation and filtration system according to claim 1, characterized in that: The dust cup cover (200) is detachably or movably mounted on a side of the dust cup (100) away from the mounting ring (110), and the dust cup cover (200) can be opened to clean the outer cavity (800) and the inner cavity (700); The dust cup cover (200) is provided with: a first isolation groove (210) that cooperates with the end surface of the dust cup (100) on the side away from the mounting ring (110), and a second isolation groove (220) that cooperates with the end surface of the annular wall (600) on the side away from the mounting ring (110).

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