CN210114398U - A kind of air-dust separation net cover, air-dust separation system and vacuum cleaner - Google Patents

Abstract

The utility model relates to a gas-dust separation net cover, a gas-dust separation system and a vacuum cleaner, wherein the gas-dust separation net cover comprises: a net cover main body, which has a cavity surrounded by circumferential side walls arranged around a circumference, The circumferential sidewall is formed with at least one path spirally arranged around the circumferential sidewall, and the portion of the circumferential sidewall that constitutes the top of the path is provided with several nets along the extending direction of the path. holes, the mesh holes communicate with the cavity. The air-dust separation system and the vacuum cleaner of the present invention have the above-mentioned air-dust separation net cover, so the air-dust separation effect is better.

Description

A kind of air-dust separation net cover, air-dust separation system and vacuum cleaner

technical field

The utility model relates to the field of living appliances, in particular to a gas-dust separation net cover, a gas-dust separation system and a vacuum cleaner.

Background technique

The increasing development and progress of vacuum cleaners greatly facilitates and simplifies people's daily cleaning work, but at the same time, users' expectations for cleaning efficiency and vacuuming ability are also gradually increasing. The dust separation effect of a vacuum cleaner is a key technical indicator to measure the performance of a vacuum cleaner. The air and dust separation system of the vacuum cleaner includes a filter screen cover as a primary filter system, a secondary filter system arranged in the filter screen cover, and a HEPA filter screen provided at the exhaust hole of the secondary filter system, wherein the filter screen cover It is usually a columnar cylindrical structure, and the mesh holes are distributed radially on the side wall surface of the filter screen. After entering the dust cup, the gas-dust mixed air flow directly enters the secondary filter system and the HEPA filter screen through the mesh holes in turn. Due to the existing cylindrical filter The mesh cover has limited dust filtration, and the gas filtered by the secondary filtration system is still mixed with a certain amount of dust. When it passes through the air filter, it is easy to block the HEPA filter, requiring frequent cleaning by the user, which is inconvenient for cleaning operations. Frequent cleaning results in a greatly reduced service life of the HEPA filter.

Utility model content

Therefore, the technical problem to be solved by the present invention is to overcome the defect that the filter screen cover in the prior art has poor gas-dust separation effect, thereby providing a gas-dust separation screen cover and a gas-dust separation system with good gas-dust separation effect. and vacuum cleaners.

In order to solve the above-mentioned technical problems, a gas-dust separation net cover of the present invention includes:

The main body of the mesh cover has a cavity surrounded by circumferential side walls arranged around a circumference, at least one path spirally arranged around the circumferential side walls is formed on the circumferential side walls, and the circumferential side walls are The part of the side wall that forms the top of the path is provided with a plurality of mesh holes along the extending direction of the path, and the mesh holes communicate with the cavity.

The area of the cross-sectional area surrounded by the path every 360° around the circumferential sidewall increases sequentially from the lower end to the upper end of the circumferential sidewall.

The circumferential sidewall is provided with a path, and the path spirals around the circumferential sidewall several times.

The circumferential side wall has a stepped shape with several steps, and the part of the circumferential side wall that constitutes the top of the path is formed by the stepped surface of each step of the step, and the mesh is arranged on the on the steps.

The circumferential side wall is also provided with a surrounding edge along the extending direction of the path, the upper end of the surrounding edge is connected with the part of the circumferential side wall that constitutes the top of the path, and the lower end of the surrounding edge is suspended, and The peripheral edge is located outside the mesh hole.

A gas-dust separation system of the present invention has the above-mentioned gas-dust separation net cover.

The gas-dust separation system also includes:

cyclone funnel;

The cyclone is arranged in the cyclone funnel, and its upper end extends out of the upper end of the cyclone funnel and is sealedly connected with the upper end of the cyclone funnel to form a cyclone assembly;

The cyclone assembly is arranged in the air-dust separation screen, the lower end of the cyclone funnel protrudes from the lower end of the air-dust separation screen, and the cyclone assembly and the air-dust separation screen are formed between the cyclone assembly and the air-dust separation screen. There is a closed space for separation of gas and dust.

It also includes a HEPA filter installed on the cyclone.

The cyclone is also provided with a handle that can be rotated around the rotating shaft between a horizontal state and a vertical state.

The rotating shaft is provided with an elastic member, the elastic force of the elastic member keeps the handle in a vertical state, and when the HEPA filter is installed on the cyclone, the handle is pressed in a horizontal state .

A vacuum cleaner of the present invention includes a dust cup assembly, an air inlet is provided on the circumferential side wall of the dust cup of the dust cup assembly, and also includes the above-mentioned gas dust disposed in the dust cup assembly separation system.

The air inlet is arranged close to the upper end of the main body of the grille.

The technical scheme of the utility model has the following advantages:

1. In the present utility model, after the mixed air flow enters the spiral path on the main body of the screen cover, it rotates along the spiral path for centrifugal separation. The effect of gravity falls down without entering the mesh on the top, so the separation effect of gas and dust is better. In addition, the spiral path has a guiding effect on the mixed air flow, and the mixed air flow rotates downward, driving the dust and dirt down to the bottom, which can further improve the efficiency of the first-stage air and dust separation.

2. In the present invention, the area of the cross-sectional area surrounded by the path every 360° around the circumferential sidewall increases sequentially from the lower end to the upper end of the circumferential sidewall. In this way, the separated and settled dust can be guaranteed to fall completely without being deposited on the circumferential side wall.

3. In the present utility model, the peripheral side wall is also provided with a surrounding edge along the extending direction of the path, and the upper end of the surrounding edge is connected with the top part of the peripheral side wall that constitutes the path, and its lower end is suspended, and the surrounding edge is connected. on the outside of the mesh. The arrangement of the surrounding edge can prevent the mixed air flow from directly entering the cavity through the mesh hole, thereby further improving the separation effect of gas and dust.

4. In the present utility model, the HEPA filter screen installed on the cyclone is also included. The air from the air outlet of the cyclone enters the HEPA filter to continue the separation of air and dust. At the same time, due to the good separation effect of the air-dust separation mesh cover for primary filtration, the HEPA filter does not need to be cleaned frequently, which is convenient to use and can prolong the service life of the HEPA filter.

5. In the utility model, a handle and a torsion spring are arranged on the cyclone. When the HEPA filter is manually removed, the handle will automatically bounce under the torsion force of the torsion spring, which is convenient for people to carry and enables users to operate more convenient. At the same time, if the HEPA filter is not installed during the assembly of the hood components, the handle will always be in a bounced state and cannot be assembled with the whole machine. At the same time, an effective leak-proof structure is provided to prevent the HEPA filter from leaking. It is installed to protect the vacuum motor from entering the dust directly and improve the service life of the motor.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1, is the exploded view of the gas-dust separation system of the present utility model;

Fig. 2, is the assembly schematic diagram of the gas-dust separation system of the present utility model (the HEPA filter screen is not drawn in the figure);

Fig. 3, is the structural representation of the air-dust separation net cover of the present utility model;

Fig. 4, is the front view of Fig. 3;

Description of reference numbers:

1- Dust separation mesh cover, 2- Cyclone funnel, 3- Cyclone sub, 4- Handle, 5- Elastic part, 6- HEPA filter, 7- Cyclone sub-sealing ring, 8- Funnel sealing ring, 9- Bottom Cover sealing ring, 10-dust cup bottom cover, 11-dust cup, 12-cavity, 13-perimeter, 14-mesh hole, 15-air inlet.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

As shown in Figures 1-3, a gas-dust separation net cover of the present invention includes:

The main body of the mesh cover has a cavity 12 surrounded by a circumferential side wall arranged around a circumference, at least one path spirally arranged around the circumferential side wall is formed on the circumferential side wall, and the circumference A plurality of mesh holes 14 are provided along the extending direction of the path toward the part of the side wall that constitutes the top of the path, and the mesh holes 14 communicate with the cavity 12 .

After the mixed airflow enters the spiral path on the main body of the screen cover, it rotates along the spiral path for centrifugal separation. Since the mesh 14 of the air-dust separation screen cover 1 is located at the top of the path, the dust after centrifugal separation falls down due to the action of gravity. It will not enter the mesh hole 14 at the top, so the gas and dust separation effect is better. In addition, the spiral path has a guiding effect on the mixed air flow, and the mixed air flow rotates downward, driving the dust and dirt down to the bottom, which can further improve the efficiency of the first-stage air and dust separation.

Further, preferably, the area of the cross-sectional area surrounded by the path every 360° around the circumferential sidewall increases sequentially from the lower end to the upper end of the circumferential sidewall. The air-dust separation mesh cover is in the shape of a conical spiral, which not only has a good separation effect, but also can ensure that the separated and settled dust and dirt fall completely without being deposited on the circumferential side wall.

In this embodiment, as shown in FIGS. 3-4 , preferably, the circumferential side wall is provided with one of the paths, and the path spirals around the circumferential side wall for several turns. Such a structure is easy to form and has a good separation effect.

Specifically, the circumferential side wall has a stepped shape with several steps, and the portion of the circumferential side wall that constitutes the top of the path is formed by the stepped surface of each step. The mesh 15 arranged on the step surface. Such a structure is easy to process and form, and the separation effect is good.

Further, preferably, a peripheral edge 13 is also provided on the peripheral side wall along the extending direction of the path, and the upper end of the peripheral edge 13 is connected to the part of the peripheral side wall that constitutes the top of the path. , the lower end of which is suspended, and the surrounding edge 13 is located outside the mesh hole 14 . The setting of the surrounding edge 13 can prevent the mixed air flow from directly entering the cavity 12 through the mesh hole 14, thereby further improving the gas-dust separation effect.

A gas-dust separation system of the present invention has the above-mentioned gas-dust separation net cover 1, and the gas-dust separation effect is better.

Preferably, the gas-dust separation system further comprises:

Cyclone Funnel 2;

The cyclone 3 is arranged in the cyclone funnel 2, and its upper end extends out of the upper end of the cyclone funnel 2 and is sealedly connected with the upper end of the cyclone funnel 2 to form a cyclone assembly;

The cyclone assembly is arranged in the air-dust separation screen cover 1, the lower end of the cyclone funnel 2 protrudes from the lower end of the air-dust separation screen cover 1, and the cyclone assembly and the air-dust separation screen cover A closed gas and dust separation space is formed between 1.

The mixed airflow passes through the air-dust separation screen cover 1 for primary filtration, and then enters the cyclone assembly for secondary filtration, multi-stage filtration, and the filtration effect is better.

Preferably, the cyclone assembly is detachably connected to the air-dust separation screen cover 1 . During specific implementation, it is preferable that a funnel sealing ring 8 is provided between the flange of the upper end of the cyclone funnel 2 and the upper end of the cyclone 3, and the cyclone funnel 2, the funnel sealing ring 8 and the cyclone 3 are connected by threaded fasteners to form a cyclone assembly . The upper end of the cyclone 3 is crimped on the upper end of the air-dust separation screen cover 1, and a cyclone sealing ring 7 is arranged between the upper end of the cyclone 3 and the dust cup, and the lower end of the cyclone funnel 2 has an abutting part, the abutting part It is in contact with the stopper on the inner surface of the dust separation grill 1 .

Further, the HEPA filter screen 6 installed on the cyclone 3 is also included. The air from the air outlet of the cyclone 3 enters the HEPA filter screen 6 to continue the separation of gas and dust. The HEPA filter screen 6 acts as a tertiary filter, which can further improve the effect of gas and dust separation. At the same time, due to the good separation effect of the air-dust separation screen cover 1 for primary filtration, the HEPA filter screen 6 is not easy to be blocked, and the HEPA filter screen 6 does not need to be cleaned frequently, which is convenient for users to use, and can prolong the service life of the HEPA filter screen 6 .

In order to facilitate taking out the gas-dust separation system from the dust cup 11 , the cyclone 3 is also provided with a handle 4 that can rotate between a horizontal state and a vertical state around the rotating shaft.

Further, preferably an elastic member 5 is provided on the rotating shaft, and the elastic force of the elastic member 5 makes the handle 4 in a vertical state, and when the HEPA filter 6 is installed on the cyclone 3, the The handle 4 is pressed in a horizontal state. The elastic member 5 is a torsion spring in this embodiment. When the HEPA filter 6 is manually removed, the handle 4 will automatically bounce up under the torsion force of the torsion spring, which is convenient for people to carry and makes the user's operation more convenient. At the same time, if the HEPA filter 6 is missing during the assembly of the hood components, the handle will always be in a bounced state and cannot be assembled with the whole machine. At the same time, an effective leak-proof structure is provided to prevent the HEPA filter. Missing installation protects the vacuum motor from directly entering dust and improves the service life of the motor.

A vacuum cleaner of the present invention includes a dust cup assembly, an air inlet 15 is provided on the circumferential side wall of the dust cup 11 of the dust cup assembly, and also includes an air inlet 15 disposed in the dust cup assembly, as described above Air and dust separation system. The dust cup assembly 11 includes a dust cup 11 , a dust cup bottom cover 10 disposed at the bottom of the dust cup 11 , and a bottom cover sealing ring 9 disposed between the dust cup 11 and the dust cup bottom cover 10 .

Preferably, the air inlet 15 is disposed close to the upper end of the mesh cover body, so that the air intake will not affect the settling of the separated dust.

The working process of the vacuum cleaner of the present utility model:

The mixed air flow entering from the air inlet 15 of the dust cup 11 enters the dust cup tangentially, and is rotated and centrifuged in the dust cup 11. The separated and settled dust will fall into the dust collection chamber of the dust cup. The airflow enters the cyclone assembly through the mesh hole 14 for secondary separation. After the airflow enters the secondary separation system, it enters the inside of the cyclone funnel 2 through the tangential air inlet of the cyclone funnel 2, and is rotated and centrifuged inside the cyclone funnel 2, and finally the settled dust is collected in the dust collection chamber at the lower end of the cyclone funnel. The air after the secondary separation is discharged to the HEPA filter 6 through the exhaust hole of the cyclone 3, and is filtered through the HEPA filter 6 again.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (12)

1. a gas-dust separation net cover, is characterized in that, comprises: The main body of the grille has a cavity (12) surrounded by circumferential side walls arranged around a circumference, at least one path spirally arranged around the circumferential side walls is formed on the circumferential side walls, and the A plurality of mesh holes (14) are provided along the extending direction of the path on the part of the circumferential side wall that constitutes the top of the path, and the mesh holes (14) communicate with the cavity (12). 2 . The air-dust separation net cover according to claim 1 , wherein the area of the cross-sectional area surrounded by the path every 360° around the circumferential side wall is from the lower end to the upper end of the circumferential side wall. 3 . direction increases. 3. The air-dust separation net cover according to claim 2 is characterized in that, The circumferential sidewall is provided with a path, and the path spirals around the circumferential sidewall several times. 4 . The air-dust separation net cover according to claim 3 , wherein the circumferential side wall has a stepped shape with several steps, and the part of the circumferential side wall that constitutes the top of the path is composed of 4 . The step surface of each step is formed, and the mesh (14) is arranged on the step surface. 5. The gas-dust separation net cover according to any one of claims 1-4, characterized in that, A peripheral edge (13) is also provided on the peripheral side wall along the extending direction of the path, and the upper end of the peripheral edge (13) is connected to the part of the peripheral side wall that constitutes the top of the path , the lower end of which is suspended, and the surrounding edge (13) is located outside the mesh hole (14). 6. A gas-dust separation system, characterized in that it has the gas-dust separation net cover (1) according to any one of claims 1-5. 7. The gas-dust separation system according to claim 6, wherein the gas-dust separation system further comprises: Cyclone funnel (2); The cyclone (3) is arranged in the cyclone funnel (2), and its upper end extends out of the upper end of the cyclone funnel (2) and is sealedly connected with the upper end of the cyclone funnel (2) to form a cyclone assembly; The cyclone assembly is arranged in the air-dust separation screen (1), the lower end of the cyclone funnel (2) protrudes from the lower end of the air-dust separation screen (1), and the cyclone assembly is connected to the air-dust separation screen (1). A closed air-dust separation space is formed between the gas-dust separation screen covers (1). 8. The gas-dust separation system according to claim 7, characterized in that, It also includes a HEPA filter screen (6) installed on the cyclone (3). 9 . The gas-dust separation system according to claim 8 , wherein the cyclone ( 3 ) is further provided with a handle ( 4 ) that can be rotated between a horizontal state and a vertical state around the rotating shaft. 10 . 10 . The gas-dust separation system according to claim 9 , wherein an elastic member ( 5 ) is provided on the rotating shaft, and the elastic force of the elastic member ( 5 ) keeps the handle ( 4 ) in a vertical position. 11 . When the HEPA filter screen (6) is installed on the cyclone (3), the handle (4) is pressed in a horizontal state. 11. A vacuum cleaner, comprising a dust cup assembly, an air inlet (15) is provided on the circumferential side wall of the dust cup (11) of the dust cup assembly, characterized in that it further comprises an air inlet (15) disposed in the dust cup assembly , the gas-dust separation system according to any one of claims 6-10. 12. The vacuum cleaner according to claim 11, characterized in that, the air inlet (15) is disposed close to the upper end of the mesh cover main body.

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