Air curtain machine with self-cleaning structure

By introducing a self-cleaning structure into the air curtain machine, including a motor-driven brush and a dust collection box, the problem of existing air curtain machines being unable to clean in all directions is solved, achieving efficient dust collection and a simplified cleaning process.

CN223965567UActive Publication Date: 2026-03-03GUANGZHOU RUILONG ELECTRICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520488499.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-03
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Existing air curtain machines can only clean the heated parts and cannot clean other parts, resulting in poor overall cleaning effect.

Method used

An air curtain machine with a self-cleaning structure was designed, including components such as an air inlet grille, a first filter plate, a second motor, a cleaning plate, a brush, a dust removal port, a dust removal box, a third motor, fan blades, and a dust collection box. The motor drives the brush to clean the filter plate, the scraper cleans the inner wall of the machine casing, and the dust enters the dust collection box through the inclined filter plate, achieving all-round cleaning.

Benefits of technology

It achieves all-round self-cleaning of the air curtain machine, effectively collecting and removing dust, simplifying the cleaning process, and improving cleaning efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air curtain machine with a self-cleaning structure, which comprises a case, an air inlet air grid and a first filter plate are arranged at the front end in the case, a second motor is arranged between the first filter plate and the air inlet air grid, a screw rod is arranged on an output shaft of the second motor, a cleaning plate is arranged on the screw rod, and the cleaning plate is arranged on the cleaning plate. A cleaning plate is installed on the lower portion of the right side of the machine box, a brush is installed at one end of the cleaning plate, an ash removing box is installed on the lower portion of the right side of the machine box, a second filter plate is obliquely installed in the ash removing box, a third motor is installed below the second filter plate through a support, an output shaft of the third motor is connected with fan blades, and a dust collecting box is installed on one side of the ash removing box. According to the scheme, the first filter plate prevents dust from entering the space behind the device, the second motor drives the cleaning plate to clean the first filter plate through the brush, the dust generated by sweeping is adsorbed by the fan blades driven by the third motor under negative pressure, and the dust finally enters the dust collection box under the action of the inclined second filter plate and is convenient to dump.
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Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and in particular to an air curtain machine with a self-cleaning structure. Background Technology

[0002] An air curtain is an air purification device that uses a high-speed motor to drive a cross-flow or centrifugal fan to generate a powerful airflow, forming an "invisible curtain." Air curtains are also known as air curtain machines, air barriers, or air doors. The high-speed airflow of an air curtain can isolate outdoor fumes and odors from entering the room, and can also effectively block outdoor dust from entering, maintaining indoor cleanliness and creating a fresh and comfortable environment.

[0003] A search revealed Chinese patent application number 202022263015.0, which discloses a self-cleaning air curtain machine. The machine includes an air curtain with an air inlet extending through its upper surface, a motor mounted on its side wall, a reciprocating mechanism at the motor's power end, a heater inside, and two mounting plates extending through its side wall. Each mounting plate has an electrostatic dust removal mesh, and rectangular plates are fixedly connected to the side walls of both mounting plates. Limiting mechanisms are provided between the rectangular plates and the side walls of the air curtain machine. The air curtain machine has four storage slots, each containing a pop-out mechanism. The self-cleaning air curtain machine described in the above-mentioned document has the following drawback: it can only clean the heated area and cannot clean other parts. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an air curtain machine with a self-cleaning structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An air curtain machine with a self-cleaning structure includes a casing. An air inlet grille and a first filter plate are installed at the front end of the casing. A second motor is installed between the first filter plate and the air inlet grille. A lead screw is installed on the output shaft of the second motor. A cleaning plate is installed on the lead screw. A brush is installed on the end of the cleaning plate near the first filter plate. A dust removal port is opened on the lower right side of the casing. A dust removal box is installed below the dust removal port. A second filter plate is installed at an angle inside the dust removal box. A third motor is installed below the second filter plate via a bracket. A fan blade is connected to the output shaft of the third motor. A dust collection box is installed on one side of the dust removal box.

[0007] As a further improvement of this utility model: a scraper is installed at one end of the cleaning plate near the bottom of the inner wall of the chassis.

[0008] As a further improvement of this utility model: a guide groove is provided on the lower side of the outer wall of the chassis, and a guide block is installed at the corresponding position on the bottom outer wall of the dust collection box.

[0009] As a further embodiment of this utility model: a first motor is installed in the rear part of the chassis via a bracket, and shaft seats are installed on both sides of the inner wall of the rear part of the chassis. A centrifugal fan roller is rotatably installed between the output shaft of the first motor and the shaft seats at both ends, and an adjustable air grid is installed below the centrifugal fan roller via a bracket.

[0010] As a further improvement of this utility model: power supplies are installed on both sides of the inner rear wall of the chassis, and several heating tubes are installed on the power supplies.

[0011] As a further improvement of this utility model: a second connector is installed on the outer back wall of the chassis, and a first connector is detachably installed inside the second connector, with a fixing hole on the first connector.

[0012] As a further improvement of this utility model, an end cover is installed on the side of the chassis.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. With the above scheme, the first filter plate prevents dust from entering the space behind the device. The second motor drives the cleaning plate to clean the first filter plate with a brush. The dust generated by the brush is adsorbed by the negative pressure of the fan blade driven by the third motor. Under the action of the inclined second filter plate, the dust finally enters the dust collection box, which is convenient to empty.

[0015] 2. By setting up a scraper, the brush sweeps the dust off the first filter plate, and the scraper effectively prevents the dust from adhering to the inner wall of the chassis.

[0016] 3. The above solution allows operators to quickly and accurately disassemble and install the dust collection box for cleaning.

[0017] 4. With the above scheme, the first motor generates a strong airflow through the centrifugal fan roller, and the adjustable fan grille below can change the direction of the blown air by changing its angle.

[0018] 5. By setting a heating element, the temperature of the blown air can be changed, allowing the device to be used in some low-temperature environments.

[0019] 6. With the above solution, the first connector can be installed on the wall through the fixing hole and fixing bolt, and the device can be conveniently installed by combining the second connector with the first connector.

[0020] 7. By installing end caps, operators can easily maintain the internal mechanisms of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an air curtain machine with a self-cleaning structure proposed in this utility model;

[0022] Figure 2 This is a cross-sectional view of the front structure of an air curtain machine with a self-cleaning structure proposed in this utility model.

[0023] Figure 3 This is a cross-sectional view of the rear structure of an air curtain machine with a self-cleaning structure proposed in this utility model.

[0024] Figure 4 This is a side sectional view of an air curtain machine with a self-cleaning structure proposed in this utility model.

[0025] In the diagram: 1-Chassis, 2-End cover, 3-Dust removal box, 4-Dust collection box, 5-Air inlet grille, 6-Clean plate, 7-Second motor, 8-Screw screw, 9-Scraper, 10-Brush, 11-First filter plate, 12-Dust removal port, 13-Second filter plate, 14-Third motor, 15-Fan blade, 16-First motor, 17-Centrifugal fan roller, 18-Shaft seat, 19-Power supply, 20-Heating tube, 21-Adjustable grille, 22-First connector, 23-Second connector, 24-Guide block. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] Example 1

[0029] An air curtain machine with a self-cleaning structure, such as Figure 1-4 As shown, the device includes a chassis 1. To address the self-cleaning issue, an air intake grille 5 and a first filter plate 11 are installed at the front end of the chassis 1. A second motor 7 is installed between the first filter plate 11 and the air intake grille 5. A lead screw 8 is installed on the output shaft of the second motor 7. A cleaning plate 6 is installed on the lead screw 8. A brush 10 is installed on the end of the cleaning plate 6 near the first filter plate 11. A dust removal port 12 is provided on the lower right side of the chassis 1. A dust removal box 3 is installed below the dust removal port 12. A second filter plate 13 is installed at an angle inside the dust removal box 3. A third motor 14 is installed below the second filter plate 13 via a bracket. A fan blade 15 is connected to the output shaft of the third motor 14. A dust collection box 4 is installed on one side of the dust removal box 3.

[0030] With the above scheme, the first filter plate prevents dust from entering the space behind the device. The second motor drives the cleaning plate to clean the first filter plate with a brush. The dust generated by the brush is adsorbed by the negative pressure of the fan blade driven by the third motor. Under the action of the inclined second filter plate, the dust finally enters the dust collection box, which is convenient to empty.

[0031] The device is further configured such that a scraper 9 is installed at one end of the cleaning plate 6 near the bottom of the inner wall of the chassis 1.

[0032] By setting up a scraper, the brush sweeps the dust off the first filter plate, and the scraper effectively prevents the dust from adhering to the inner wall of the chassis.

[0033] The device is further configured such that a guide groove is provided on the lower side of the outer wall of the casing 1, and a guide block 24 is installed at the corresponding position on the bottom outer wall of the dust collection box 4.

[0034] The aforementioned solution allows operators to quickly and accurately disassemble and install the dust collection box for cleaning.

[0035] The device is further configured such that a first motor 16 is mounted on the rear part of the housing 1 via a bracket, and bearing seats 18 are mounted on both sides of the rear inner wall of the housing 1. A centrifugal fan roller 17 is rotatably mounted between the output shaft of the first motor 16 and the bearing seats 18 at both ends, and an adjustable air grid 21 is mounted below the centrifugal fan roller 17 via a bracket.

[0036] With the above scheme, the first motor generates a powerful airflow through the centrifugal fan roller, and the adjustable fan grille below can change the direction of the blowing air by changing its angle.

[0037] The device is further configured such that power supplies 19 are installed on both sides of the rear inner wall of the chassis 1, and several heating tubes are installed on the power supplies 19.

[0038] By incorporating a heating element, the temperature of the blown airflow can be altered, allowing the device to be used in certain low-temperature environments.

[0039] The device is further configured such that a second connector 23 is installed on the outer back wall of the chassis 1, and a first connector 22 is detachably installed inside the second connector 23, with a fixing hole on the first connector 22.

[0040] According to the above scheme, the first connector can be installed on the wall through the fixing hole and fixing bolt, and the device can be conveniently installed by combining the second connector with the first connector.

[0041] The device is further configured such that an end cover 2 is installed on the side of the chassis 1.

[0042] By installing end caps, operators can easily maintain the internal mechanisms of the device.

[0043] Working principle: The first motor 16 drives the centrifugal fan roller 17 to rotate at high speed, and the airflow flowing in from the air inlet grille 5 is blown out at high speed from the adjustable grille 21. Due to the presence of the first filter plate 11, the dust in the air is blocked on the surface of the first filter plate 11. When cleaning is required, the second motor 7 drives the cleaning plate 6, and the brush 10 on the cleaning plate 6 sweeps the dust attached to the first filter plate 11. The scraper 9 cleans the dust attached to the lower side of the inner wall of the casing 1. Finally, all the dust is pushed into the dust removal port 12. The third motor 14 drives the fan blade 15 to perform negative pressure adsorption. Under the action of the inclined second filter plate 13, the dust finally enters the dust collection box 4 for easy cleaning.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air curtain machine with a self-cleaning structure, comprising a casing (1), characterized in that, An air intake grille (5) and a first filter plate (11) are installed at the front end of the casing (1). A second motor (7) is installed between the first filter plate (11) and the air intake grille (5). A lead screw (8) is installed on the output shaft of the second motor (7). A cleaning plate (6) is installed on the lead screw (8). A brush (10) is installed on one end of the cleaning plate (6) near the first filter plate (11). A dust removal port (12) is opened on the lower right side of the casing (1). A dust removal box (3) is installed below the dust removal port (12). A second filter plate (13) is installed at an angle inside the dust removal box (3). A third motor (14) is installed below the second filter plate (13) via a bracket. A fan blade (15) is connected to the output shaft of the third motor (14). A dust collection box (4) is installed on one side of the dust removal box (3).

2. The air curtain machine with a self-cleaning structure according to claim 1, characterized in that, A scraper (9) is installed at one end of the cleaning plate (6) near the bottom of the inner wall of the chassis (1).

3. An air curtain machine with a self-cleaning structure according to claim 2, characterized in that, The lower side of the outer wall of the chassis (1) is provided with a guide groove, and a guide block (24) is installed at the corresponding position on the bottom outer wall of the dust collection box (4).

4. An air curtain machine with a self-cleaning structure according to claim 3, characterized in that, The first motor (16) is installed in the rear part of the casing (1) by a bracket. Shaft seats (18) are installed on both sides of the inner wall of the rear part of the casing (1). Centrifugal air rollers (17) are rotatably installed between the output shaft of the first motor (16) and the shaft seats (18) at both ends. An adjustable air grid (21) is installed below the centrifugal air rollers (17) by a bracket.

5. An air curtain machine with a self-cleaning structure according to claim 4, characterized in that, Power supplies (19) are installed on both sides of the inner rear wall of the chassis (1), and several heating tubes are installed on the power supplies (19).

6. An air curtain machine with a self-cleaning structure according to claim 5, characterized in that, The back outer wall of the chassis (1) is equipped with a second connector (23), and a first connector (22) is detachably installed inside the second connector (23). The first connector (22) has a fixing hole.

7. An air curtain machine with a self-cleaning structure according to claim 6, characterized in that, The side of the chassis (1) is fitted with an end cover (2).

Citation Information

Patent Citations

  • Hot air curtain machine with self-cleaning function

    CN213395954U