Fresh air ventilator filter screen capable of being automatically cleaned

Abstract

The utility model discloses a self-cleaning fresh air fan filter screen, relates to the field of fan filter screens, and aims to solve the problems that dust is accumulated on a filter screen after long-time use to influence the air inlet efficiency due to the fact that the filter screen is arranged in an air inlet pipe of an existing fresh air fan in the prior art to remove dust from inlet air, and the existing filter screen is mostly cleaned by detaching the filter screen, so that the cleaning cost is high. And the trouble is avoided. A filter screen is fixed in the filter screen outer frame, a first strip-shaped opening is formed in one side of the front end of the filter screen outer frame, the filter screen outer frame is fixedly arranged in the fresh air pipe, a second strip-shaped opening is formed in the middle of the upper end of the fresh air pipe, and a rectangular air suction pipe is fixedly connected to the upper end of the second strip-shaped opening; a dust collector is fixedly connected to one side of the rectangular air suction pipe, a cleaning roller is arranged at the front end of the filter screen, a first rotating shaft is fixedly connected to the middle of the cleaning roller, a driving box is connected to one side of the first rotating shaft, a motor box is fixedly connected to one side of the driving box, and a moving block is connected to the other side of the first rotating shaft.

Description

Technical Field

[0001] The utility model relates to the field of fan filter screens, in particular to a self-cleaning new fan filter screen. Background Art

[0002] Fresh air fan is an effective air purification device that can circulate indoor air. On the one hand, it discharges the dirty indoor air to the outside, and on the other hand, it sterilizes, disinfects, and filters the fresh outdoor air before inputting it into the room, so that the room is always filled with fresh and clean air. Fresh air fan uses patented fresh air convection technology to achieve indoor air convection through autonomous air supply and air intake, thereby maximizing indoor air replacement. Fresh air fan has a built-in multifunctional purification system to ensure that the air entering the room is clean and healthy. Fresh air fans are mainly divided into two types: exhaust-type fresh air fans and supply-type fresh air fans. They can be installed in most indoor environments, are easy to install, and are comfortable to use.

[0003] The existing fresh air fan has an internal filter to remove dust from the incoming air. After long-term use, dust accumulates on the filter, affecting the air intake efficiency. The existing filter cleaning method mostly requires disassembling the filter for cleaning, which is rather troublesome. Therefore, the market urgently needs to develop a self-cleaning fresh air fan filter to help people solve the existing problem. Utility Model Content

[0004] The purpose of the utility model is to provide a self-cleaning filter for a fresh air fan, so as to solve the problem proposed in the above background technology that a filter is set inside the air inlet duct of the existing fresh air fan to remove dust from the incoming air, and dust accumulates on the filter after long-term use, affecting the air intake efficiency. The existing filter cleaning method mostly requires disassembling the filter for cleaning, which is relatively troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-cleaning fresh air fan filter, comprising a filter outer frame, a filter is fixed inside the filter outer frame, a first strip opening is arranged on one side of the front end of the filter outer frame, and limiting strips are fixedly connected on both sides of the inner side of the first strip opening inside one side of the filter outer frame, a strip tooth portion is fixedly connected on one end face of one side of the filter outer frame, a T-shaped limiting groove is arranged on the other side of the front end of the filter outer frame, the filter outer frame is fixedly arranged inside the fresh air duct, a second strip opening is arranged in the middle part of the upper end of the fresh air duct, a rectangular air suction pipe is fixedly connected to the upper end of the second strip opening, a vacuum cleaner is fixedly connected to one side of the rectangular air suction pipe, a dust bag is fixedly connected to one side of the vacuum cleaner, a cleaning roller is arranged at the front end of the filter, a first rotating shaft is fixedly connected to the middle part of the cleaning roller, a drive box is connected to one side of the first rotating shaft, a motor box is fixedly connected to one side of the drive box, a motor is fixedly arranged inside the motor box, and a moving block is connected to the other side of the first rotating shaft.

[0006] Preferably, one end of the first rotating shaft passes through the middle of the driving box and extends to the inside of the motor box and is fixedly connected to the motor output shaft. A first conical tooth is fixedly connected on the first rotating shaft and inside the driving box.

[0007] Preferably, a second rotating shaft is rotatably connected to the middle part of the rear end of the driving box, a second conical tooth is fixedly connected to the front end of the second rotating shaft, and the second conical tooth on the second rotating shaft is meshedly connected with the first conical tooth portion on the first rotating shaft.

[0008] Preferably, the rear end of the second rotating shaft passes through the rear end surface of the driving box and is inserted into the interior of the filter outer frame along the strip-shaped tooth portion and passes between two limit bars and is fixedly connected with a gear.

[0009] Preferably, the gear at the rear end of the second rotating shaft is meshingly connected with the inner bar-shaped tooth portion of the filter screen outer frame.

[0010] Preferably, the other end of the first rotating shaft is inserted into the middle of one side of the moving block for rotational connection, the rear end of the moving block is fixedly connected with a T-shaped limiting portion, and the T-shaped limiting portion on the moving block slides into the front end T-shaped limiting groove on one side of the filter outer frame for limiting connection.

[0011] Preferably, the front end of the driving box and the front end of the moving block are fixedly connected via a C-shaped connecting rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, through the setting of the cleaning roller, a filter is fixed inside the filter outer frame, a cleaning roller is set at the front end of the filter, a first rotating shaft is fixedly connected to the middle of the cleaning roller, a driving box is connected to one side of the first rotating shaft, and a moving block is connected to the other side of the first rotating shaft. When there is a lot of dust at the front end of the filter, the first rotating shaft is driven to rotate by the motor, and then the cleaning roller is driven to brush the air inlet side of the filter, thereby realizing automatic cleaning without disassembling the filter.

[0014] 2. In the utility model, through the setting of the second rotating shaft, the middle part of the rear end of the driving box is rotatably connected with the second rotating shaft, and the front end of the second rotating shaft is fixedly connected with the second conical teeth, the second conical teeth on the second rotating shaft are meshingly connected with the first conical teeth on the first rotating shaft, and when the first rotating shaft rotates, the second rotating shaft is synchronously driven to rotate, the rear end of the second rotating shaft passes through the rear end face of the driving box and is inserted into the interior of the filter outer frame along the strip teeth and is fixedly connected with a gear after passing through two limit bars, the gear at the rear end of the second rotating shaft is meshingly connected with the teeth of the strip teeth inside the filter outer frame, and when the second rotating shaft rotates, it drives the driving box to rise and fall at the front end of the filter outer frame, so that the driving box drives the cleaning roller to move up and down to scrub the front end face of the filter in all directions.

[0015] 3. In the utility model, through the setting of the vacuum cleaner, a strip opening is provided in the middle of the upper end of the fresh air duct, a rectangular suction pipe is fixedly connected to the upper end of the strip opening, a vacuum cleaner is fixedly connected to one side of the rectangular suction pipe, and a dust bag is fixedly connected to one side of the vacuum cleaner. The dust brushed off the filter screen is sucked out from the strip opening by the vacuum cleaner and collected by the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a self-cleaning fresh air fan filter of the utility model;

[0017] Figure 2 It is a side sectional view of the utility model;

[0018] Figure 3 It is a top sectional view of the utility model;

[0019] Figure 4 It is an enlarged view of the detail A of the present utility model.

[0020] In the figure: 1. filter frame; 101. filter; 102. first strip opening; 103. limit strip; 104. strip tooth portion; 105. T-shaped limit groove; 2. vacuum cleaner; 201. dust filter bag; 3. cleaning roller; 301. first rotating shaft; 302. first conical tooth; 4. drive box; 401. C-shaped connecting rod; 5. second rotating shaft; 501. second conical tooth; 502. gear; 6. motor box; 601. motor; 7. moving block; 701. T-shaped limit portion; 8. fresh air duct; 801. second strip opening; 802. rectangular suction duct. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-4, the utility model provides an embodiment: a self-cleaning fresh air filter, including a filter outer frame 1, a filter 101 is fixed inside the filter outer frame 1, a first strip opening 102 is provided on one side of the front end of the filter outer frame 1, and a limiting strip 103 is fixedly connected to both sides of the inner side of the first strip opening 102 inside one side of the filter outer frame 1, a strip tooth portion 104 is fixedly connected to one end surface of one side of the filter outer frame 1, a T-shaped limiting groove 105 is provided on the other side of the front end of the filter outer frame 1, and the filter outer frame 1 is fixedly arranged inside the fresh air duct 8, and the fresh air duct 8 A second strip opening 801 is provided in the middle of the upper end, a rectangular suction pipe 802 is fixedly connected to the upper end of the second strip opening 801, a vacuum cleaner 2 is fixedly connected to one side of the rectangular suction pipe 802, a dust bag 201 is fixedly connected to one side of the vacuum cleaner 2, a cleaning roller 3 is provided at the front end of the filter 101, a first rotating shaft 301 is fixedly connected to the middle of the cleaning roller 3, a drive box 4 is connected to one side of the first rotating shaft 301, a motor box 6 is fixedly connected to one side of the drive box 4, a motor 601 is fixedly arranged inside the motor box 6, and a moving block 7 is connected to the other side of the first rotating shaft 301.

[0023] Furthermore, one end of the first rotating shaft 301 passes through the middle of the drive box 4 and extends to the inside of the motor box 6 and is fixedly connected to the output shaft of the motor 601. A first conical tooth 302 is fixedly connected on the first rotating shaft 301 and inside the drive box 4. The first rotating shaft 301 is driven to rotate by the motor 601, thereby driving the cleaning roller 3 to brush the air inlet side of the filter 101.

[0024] Furthermore, a second rotating shaft 5 is rotatably connected to the middle part of the rear end of the driving box 4, and a second conical tooth 501 is fixedly connected to the front end of the second rotating shaft 5. The second conical tooth 501 on the second rotating shaft 5 is meshed and connected with the tooth portion of the first conical tooth 302 on the first rotating shaft 301. When the first rotating shaft 301 rotates, the second rotating shaft 5 is synchronously driven to rotate. Since the second conical tooth 501 adopts a large diameter, the rotation speed of the second rotating shaft 5 is lower than that of the first rotating shaft 301.

[0025] Furthermore, the rear end of the second rotating shaft 5 passes through the rear end surface of the driving box 4 and is inserted into the filter outer frame 1 along the strip-shaped tooth portion 104 and passes between the two limit bars 103 and is fixedly connected with the gear 502 .

[0026] Furthermore, the gear 502 at the rear end of the second rotating shaft 5 is meshedly connected with the teeth of the inner strip teeth 104 of the filter outer frame 1 , and when the second rotating shaft 5 rotates, it drives the driving box 4 to rise and fall at the front end of the filter outer frame 1 .

[0027] Furthermore, the other end of the first rotating shaft 301 is inserted into the middle part of one side of the moving block 7 for rotational connection, and a T-shaped limit portion 701 is fixedly connected to the rear end of the moving block 7. The T-shaped limit portion 701 on the moving block 7 slides into the front end T-shaped limit groove 105 on one side of the filter outer frame 1 for limitation connection, so that the moving block 7 can be lifted and lowered along the T-shaped limit groove 105 at the front end of the filter outer frame 1.

[0028] Furthermore, the front end of the driving box 4 and the front end of the moving block 7 are fixedly connected via a C-shaped connecting rod 401 , and the C-shaped connecting rod 401 is used to ensure the synchronization of the lifting and lowering of the driving box 4 and the moving block 7 .

[0029] Working principle: when in use, a filter 101 is fixed inside the filter outer frame 1, a cleaning roller 3 is arranged at the front end of the filter 101, a first rotating shaft 301 is fixedly connected to the middle of the cleaning roller 3, a driving box 4 is connected to one side of the first rotating shaft 301, and a moving block 7 is connected to the other side of the first rotating shaft 301. When there is a lot of dust at the front end of the filter 101, the first rotating shaft 301 is driven to rotate by the motor 601, thereby driving the cleaning roller 3 to scrub the air inlet side of the filter 101, and a second rotating shaft 5 is rotatably connected to the middle part of the rear end of the driving box 4, a second conical tooth 501 is fixedly connected to the front end of the second rotating shaft 5, the second conical tooth 501 on the second rotating shaft 5 is meshed with the first conical tooth 302 on the first rotating shaft 301, and when the first rotating shaft 301 rotates, the second rotating shaft 5 is synchronously driven to rotate, the gear 502 at the rear end of the second rotating shaft 5 is meshed with the tooth portion of the strip tooth portion 104 inside the filter outer frame 1. When the filter screen 101 is moved, the driving box 4 is driven to rise and fall at the front end of the filter outer frame 1, and the other end of the first rotating shaft 301 is inserted into the middle part of one side of the moving block 7 for rotational connection. The rear end of the moving block 7 is fixedly connected with a T-shaped limiting portion 701, and the T-shaped limiting portion 701 on the moving block 7 slides into the T-shaped limiting groove 105 at the front end of one side of the filter outer frame 1 for limiting connection, so that the moving block 7 can be lifted and lowered along the T-shaped limiting groove 105 at the front end of the filter outer frame 1, and the dust on the filter screen 101 is brushed off by the cleaning roller 3. The filter screen outer frame 1 is fixedly arranged inside the fresh air duct 8, and a second strip opening 801 is arranged in the middle part of the upper end of the fresh air duct 8. A rectangular suction pipe 802 is fixedly connected to the upper end of the second strip opening 801, and a vacuum cleaner 2 is fixedly connected to one side of the rectangular suction pipe 802. A dust bag 201 is fixedly connected to one side of the vacuum cleaner 2. The dust brushed off the filter screen 101 is sucked out from the second strip opening 801 by the vacuum cleaner 2 and collected by the dust bag 201.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A self-cleaning fresh air fan filter, comprising a filter frame (1), characterized in that: A filter (101) is fixed inside the filter outer frame (1), a first strip opening (102) is provided on one side of the front end of the filter outer frame (1), limiting strips (103) are fixedly connected on both sides of the inner side of the first strip opening (102) inside one side of the filter outer frame (1), a strip tooth portion (104) is fixedly connected on one end surface of the inner side of the filter outer frame (1), a T-shaped limiting groove (105) is provided on the other side of the front end of the filter outer frame (1), the filter outer frame (1) is fixedly arranged inside the fresh air duct (8), a second strip opening (801) is provided in the middle of the upper end of the fresh air duct (8), and the second strip opening (802) is fixedly connected to the inner side of the filter outer frame (1), and the second strip opening (803) is fixedly connected to the inner side of the filter outer frame (1). A rectangular suction pipe (802) is fixedly connected to the upper end of the opening (801), a vacuum cleaner (2) is fixedly connected to one side of the rectangular suction pipe (802), a dust bag (201) is fixedly connected to one side of the vacuum cleaner (2), a cleaning roller (3) is arranged at the front end of the filter (101), a first rotating shaft (301) is fixedly connected to the middle of the cleaning roller (3), a driving box (4) is connected to one side of the first rotating shaft (301), a motor box (6) is fixedly connected to one side of the driving box (4), a motor (601) is fixedly arranged inside the motor box (6), and a moving block (7) is connected to the other side of the first rotating shaft (301).

2. The self-cleaning fresh air fan filter according to claim 1, characterized in that: One end of the first rotating shaft (301) passes through the middle of the driving box (4) and extends to the inside of the motor box (6) to be fixedly connected to the output shaft of the motor (601). A first conical tooth (302) is fixedly connected on the first rotating shaft (301) and inside the driving box (4).

3. The self-cleaning fresh air fan filter according to claim 2 is characterized in that: A second rotating shaft (5) is rotatably connected to the middle of the rear end of the driving box (4), a second conical tooth (501) is fixedly connected to the front end of the second rotating shaft (5), and the second conical tooth (501) on the second rotating shaft (5) is meshingly connected with the tooth portion of the first conical tooth (302) on the first rotating shaft (301).

4. The self-cleaning fresh air fan filter according to claim 3 is characterized in that: The rear end of the second rotating shaft (5) passes through the rear end surface of the driving box (4) and is inserted into the interior of the filter screen outer frame (1) along the strip-shaped tooth portion (104) and passes between the two limit bars (103) and is fixedly connected to the gear (502).

5. The self-cleaning fresh air fan filter according to claim 4, characterized in that: The gear (502) at the rear end of the second rotating shaft (5) is meshedly connected with the teeth of the inner bar-shaped teeth (104) of the filter outer frame (1).

6. The self-cleaning fresh air fan filter according to claim 1, characterized in that: The other end of the first rotating shaft (301) is inserted into the middle of one side of the moving block (7) for rotational connection, and a T-shaped limiting portion (701) is fixedly connected to the rear end of the moving block (7), and the T-shaped limiting portion (701) on the moving block (7) slides into the front end T-shaped limiting groove (105) on one side of the filter screen outer frame (1) for limiting connection.

7. The self-cleaning fresh air fan filter according to claim 1, characterized in that: The front end of the driving box (4) and the front end of the moving block (7) are fixedly connected via a C-shaped connecting rod (401).

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