Formaldehyde removal air purifier

Abstract

The utility model relates to the field of air purifiers, and discloses a formaldehyde removal air purifier which comprises a shell, an air inlet is formed in the right side of the shell, a filtering mechanism is arranged in the shell and comprises a fixing frame and a guide rod, the fixing frame is fixedly connected to the inner wall of the shell, and the guide rod is arranged on the inner wall of the shell. A mounting groove is formed in the top of the fixing frame, a first filter screen abuts against the inner wall of the mounting groove, a second filter screen is arranged at the top of the first filter screen, a square frame abuts against the top of the second filter screen, and a sealing gasket is arranged at the bottom of the square frame. According to the utility model, the screw rod is rotated by rotating the knob, so that the movable plate linearly moves rightwards, the square frame slides downwards along the guide rod, the sealing gasket is tightly attached to the filter screen II, the filtering resistance is increased, the purification efficiency is improved, no leakage is ensured between the filter screen I and the filter screen II as well as between the filter screen I and the square frame, and airflow is completely filtered by the filter screens.

Description

Technical Field

[0001] This utility model relates to the field of air purifiers, and more particularly to a formaldehyde-removing air purifier. Background Technology

[0002] Air purifiers draw in polluted air, pass it through an internal filter, and then expel it. The main principle is: a fan draws air into the machine, which is then filtered through the built-in filter. The core component of a filter-type air purifier is the filter element. If a high-performance filter element is not properly sealed to the panel in the air duct, the overall performance of the machine will be poor. Therefore, to ensure the filter element functions properly and to reduce its unreasonable use, the sealing design between the filter element and the air duct panel is particularly important.

[0003] Normally, air enters the filter assembly of an air purifier through the air inlet and is filtered. The filtered air is then sent out through the air outlet, thus circulating and filtering. Therefore, the airtightness of the filter assembly is required to be high. Conventional filter assemblies achieve a sealing effect by attaching sealing tape to the edges of the filter assembly. After a period of use, the adhesive part of the sealing tape is prone to aging, which reduces the airtightness of the filter assembly and causes air leakage at the edges of the filter assembly, thereby reducing the air filtration efficiency. To address this issue, a formaldehyde-removing air purifier is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a formaldehyde-removing air purifier, which aims to improve the problem in the prior art that "the part of the sealing sticker is prone to aging, which reduces the sealing performance of the filter element assembly".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a formaldehyde-removing air purifier, comprising a housing, an air inlet on the right side of the housing, a filter mechanism inside the housing, the filter mechanism comprising a fixing frame and a guide rod, the fixing frame being fixedly connected to the inner wall of the housing, an installation groove on the top of the fixing frame, a first filter screen abutting against the inner wall of the installation groove, a second filter screen abutting against the top of the first filter screen, a square frame abutting against the top of the second filter screen, a sealing gasket at the bottom of the square frame, a guide rod being fixedly connected to the top of the fixing frame, the top of the guide rod being slidably connected to the inner wall of the square frame, a control mechanism on the front of the square frame, a fan compartment fixedly connected to the inner wall of the housing, and an air outlet on the top of the housing.

[0006] As a further description of the above technical solution:

[0007] The control mechanism includes a fixing plate, which is fixedly connected to the front of the housing, and a screw is rotatably connected to the inner wall of the fixing plate.

[0008] As a further description of the above technical solution:

[0009] The control mechanism also includes a nut block, which is threaded onto the outer wall of the screw, and a knob is fixedly connected to the right side of the screw.

[0010] As a further description of the above technical solution:

[0011] The control mechanism also includes a movable plate, the front of which is fixedly connected to the back of the nut block, and the movable plate is slidably connected to the inner wall of the housing.

[0012] As a further description of the above technical solution:

[0013] The surface of the movable plate is provided with inclined grooves, and the inner wall of the housing is provided with vertical grooves.

[0014] As a further description of the above technical solution:

[0015] The control mechanism also includes a round rod, which is fixedly connected to the front and rear surfaces of the frame. The outer wall of the round rod contacts the inner wall of the inclined groove and the outer wall of the round rod contacts the inner wall of the vertical groove.

[0016] As a further description of the above technical solution:

[0017] A control panel is fixedly connected to the right side of the housing.

[0018] As a further description of the above technical solution:

[0019] A filter screen is installed at the top of the air inlet and on the right side of the air outlet.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, rotating the knob causes the screw to rotate, which in turn causes the moving plate to move linearly to the right, causing the frame to slide downward along the guide rod, so that the sealing gasket and the second filter screen are tightly fitted, increasing the filtration resistance and improving the purification efficiency, ensuring that there is no leakage between the first filter screen, the second filter screen, and the frame, and ensuring that the airflow is completely filtered by the filter screen.

[0022] 2. In this utility model, the screw is rotated by turning the knob, which causes the moving plate to move linearly to the left. When the frame is lifted by the moving plate, the sealing gasket at the bottom of the frame separates from the filter screen. The operator can then remove the old filter screen from the mounting slot and replace it with a new one, reducing the difficulty of maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a three-dimensional exploded cross-sectional view of the shell and control mechanism in this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the shell and the filter mechanism in this utility model;

[0026] Figure 4 This is a three-dimensional exploded cross-sectional view of the filtration mechanism in this utility model.

[0027] Legend:

[0028] 1. Housing; 2. Air inlet; 3. Mounting bracket; 4. Mounting slot; 5. Filter screen one; 6. Filter screen two; 7. Square frame; 8. Sealing gasket; 9. Guide rod; 10. Mounting plate; 11. Screw; 12. Nut block; 13. Knob; 14. Moving plate; 15. Inclined groove; 16. Vertical groove; 17. Round rod; 18. Fan compartment; 19. Control panel; 20. Air outlet. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 3 , Figure 4 This utility model provides an embodiment of a formaldehyde-removing air purifier, comprising a housing 1, an air inlet 2 on the right side of the housing 1, and a filter mechanism inside the housing 1. The filter mechanism includes a fixing frame 3 and a guide rod 9. The fixing frame 3 is fixedly connected to the inner wall of the housing 1. The top of the fixing frame 3 is provided with an installation groove 4. A filter screen 5 is abutted on the inner wall of the installation groove 4. The filter screen 5 is a HEPA filter, which plays a role in primary filtration and interception of larger particles. A filter screen 6 is provided on the top of the filter screen 5. The filter screen 6 is an activated carbon filter, which is used to adsorb harmful gases and small particles such as formaldehyde and odors. A square frame 7 is abutted on the top of the filter screen 6. A sealing gasket 8 is provided at the bottom of the square frame 7. The sealing gasket 8 is used to ensure that there is no leakage between the filter screen 5, the filter screen 6, and the square frame 7, and to ensure that the airflow is completely filtered by the filter screen.

[0031] Reference Figure 1 , Figure 3, Figure 4 The guide rod 9 is fixedly connected to the top of the fixed frame 3, and the top of the guide rod 9 is slidably connected to the inner wall of the frame 7. The guide rod 9 is used to ensure the vertical lifting and lowering movement of the frame 7 and avoid sealing failure or jamming due to offset. A control mechanism is provided on the front of the frame 7. A fan chamber 18 is fixedly connected to the inner wall of the housing 1. A fan is installed in the fan chamber 18. When the fan is working, it draws outside air into the housing 1 through the air inlet 2. A control panel 19 is fixedly connected to the right side of the housing 1. Through the control panel 19, the fan speed can be adjusted and the timer on / off function can be set. An air outlet 20 is provided on the top of the housing 1. Filters are provided on the top of the air inlet 2 and the right side of the air outlet 20.

[0032] Reference Figure 1 , Figure 2 The control mechanism includes a fixed plate 10, which is fixedly connected to the front of the housing 1. A horizontally arranged screw 11 is rotatably connected to the inner wall of the fixed plate 10. The control mechanism also includes a nut block 12, which is threadedly connected to the outer wall of the screw 11. The nut block 12 can be linearly displaced in the axial direction of the screw 11. A knob 13 is fixedly connected to the right side of the screw 11. The surface of the knob 13 is provided with anti-slip texture to improve friction and reduce the possibility of slippage.

[0033] Reference Figure 1 - Figure 3 The control mechanism also includes a movable plate 14, the front of which is fixedly connected to the back of the nut block 12. The movable plate 14 is slidably connected to the inner wall of the housing 1. The surface of the movable plate 14 is provided with a sloping groove 15, and the inner wall of the housing 1 is provided with a vertical groove 16. The cooperation between the guide rod 9 and the vertical groove 16 ensures that the frame 7 moves smoothly up and down. The sloping surface design of the sloping groove 15 converts the left and right linear motion into the up and down linear motion. The control mechanism also includes a round rod 17, which is fixedly connected to the front and rear surfaces of the frame 7. The outer wall of the round rod 17 contacts the inner wall of the sloping groove 15 and the inner wall of the vertical groove 16. When the frame 7 is lifted by the movable plate 14, the sealing gasket 8 at the bottom of the frame 7 separates from the filter screen 6, and the operator can remove the old filter screen from the mounting slot 4 and replace it with a new one.

[0034] Working principle: When in use, place the device in the indoor space that needs purification, and start the fan in the fan compartment 18 through the control panel 19. This causes air to be drawn into the housing 1 through the air inlet 2. The air first passes through the filter on the side of the air inlet 2 for preliminary filtration, removing large particles of dust and other impurities. Then, the air enters the filtration mechanism and is first filtered through filter screen 5, which can remove smaller particles such as PM2.5 and dust from the air. Next, the air passes through filter screen 6, which can be made of activated carbon material to adsorb harmful gases such as formaldehyde and volatile organic compounds.

[0035] When the filter needs to be replaced or cleaned, the screw 11 is rotated by rotating the knob 13. Since the nut block 12 is threadedly connected to the screw 11, the nut block 12 will move along the axis of the screw 11. The movement of the nut block 12 causes the moving plate 14, which is fixedly connected to its back, to slide on the inner wall of the housing 1. The inclined groove 15 on the moving plate 14 contacts the round rods 17 on the front and rear surfaces of the square frame 7. As the moving plate 14 moves up and down, the inclined groove 15 applies an upward or downward force to the round rods 17, causing the square frame 7 to slide along the guide rod 9. Since the bottom of the square frame 7 is provided with a sealing gasket 8, when the square frame 7 moves upward, the sealing gasket 8 gradually separates from the second filter screen 6 and the first filter screen 5, making it easy to remove the filter screen for replacement or cleaning. After replacement or cleaning, the knob 13 is rotated in the opposite direction, causing the square frame 7 to slide downward along the guide rod 9, so that the sealing gasket 8 re-fits tightly with the second filter screen 6, increasing the filtration resistance and improving the purification efficiency.

[0036] Finally, the filtered air is discharged through the air outlet 20 at the top of the housing 1. The filter on the right side of the air outlet 20 further ensures the cleanliness of the discharged air. With the continuous operation of the fan, the air is kept circulating and filtered inside the housing 1, effectively removing indoor formaldehyde and other harmful gases, and providing a fresh and healthy indoor environment.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A formaldehyde removal air purifier comprising a housing (1), characterized in that: The right side of the shell (1) is provided with an air inlet (2), the inside of the shell (1) is provided with a filtering mechanism, the filtering mechanism comprises a fixing frame (3) and a guide rod (9), the fixing frame (3) is fixedly connected to the inner wall of the shell (1), the top of the fixing frame (3) is provided with a mounting groove (4), the inner wall of the mounting groove (4) abuts a filter screen one (5), the top of the filter screen one (5) is provided with a filter screen two (6), the top of the filter screen two (6) abuts a square box (7), the bottom of the square box (7) is provided with a sealing gasket (8), the guide rod (9) is fixedly connected to the top of the fixing frame (3), the top of the guide rod (9) is slidingly connected to the inner wall of the square box (7), the front of the square box (7) is provided with a control mechanism, the inner wall of the shell (1) is fixedly connected with a fan bin (18), the top of the shell (1) is provided with an air outlet (20).

2. The formaldehyde removal air purifier according to claim 1, characterized in that: The control mechanism comprises a fixed plate (10), the fixed plate (10) is fixedly connected to the front face of the shell (1), and the inner wall of the fixed plate (10) is rotatably connected with a screw rod (11).

3. The formaldehyde removal air purifier according to claim 2, characterized in that: The control mechanism further comprises a nut block (12), the nut block (12) is threadedly connected to the outer wall of the screw rod (11), and the right side of the screw rod (11) is fixedly connected with a knob (13).

4. The formaldehyde removal air purifier according to claim 3, characterized in that: The control mechanism further comprises a moving plate (14), the front face of the moving plate (14) is fixedly connected with the back face of the nut block (12), and the moving plate (14) is slidingly connected to the inner wall of the shell (1).

5. The formaldehyde removal air purifier according to claim 4, characterized in that: The surface of the moving plate (14) is provided with an inclined groove (15), and the inner wall of the shell (1) is provided with a vertical groove (16).

6. The formaldehyde removal air purifier according to claim 5, characterized in that: The control mechanism further comprises a round rod (17), the round rod (17) is fixedly connected to the front and rear surfaces of the square box (7), the outer wall of the round rod (17) is in contact with the inner wall of the inclined groove (15), and the outer wall of the round rod (17) is in contact with the inner wall of the vertical groove (16).

7. The formaldehyde removal air purifier according to claim 1, characterized in that: The right side of the shell (1) is fixedly connected with a control panel (19).

8. The formaldehyde removal air purifier according to claim 1, characterized in that: The top of the air inlet (2) and the right side of the air outlet (20) are provided with filter screens.

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