Fresh air system for haze filtering

Abstract

The fresh air system for haze filtering relates to the technical field of fresh air systems and comprises a shell, a top cover is clamped at the top end of the shell, an electric push rod is fixedly installed at the top end of the top cover, an insertion plate movably penetrates through the middle of the top end of the top cover, and a filter screen is embedded in the middle of the insertion plate. A filter screen is arranged in the outer shell, a brush strip is arranged on one side of the filter screen, an air inlet pipe penetrates through the front face of the outer shell, a baffle is movably connected to the joint of the air inlet pipe and the outer shell, an air outlet pipe penetrates through one side wall of the outer shell, and a negative pressure fan is installed on the back face of the outer shell. According to the fresh air system, a series of structures are arranged, so that the filter screen in the fresh air system is cleaned more conveniently and quickly, the situation that the filter screen filtering effect is affected due to the fact that the filter screen is not cleaned in time is avoided, and therefore the probability that fine particulate matter detained in the system drifts to the deep position in the system along with airflow is reduced; and adverse effects on normal operation of the fresh air system are reduced.

Description

Technical Field

[0001] This utility model relates to the field of fresh air system technology, specifically a fresh air system for filtration of smog. Background Technology

[0002] Due to the frequent occurrence of smog, opening windows for ventilation has become a luxury. As a result, a fresh air system has emerged that can achieve air exchange without opening windows. The fresh air system can purify pollutants such as smog in the outdoor air and introduce them into the room, while simultaneously expelling indoor air, thus achieving the exchange of indoor and outdoor air.

[0003] When filtering fine particulate matter such as smog, fresh air systems typically rely on filters. These filters require timely cleaning after prolonged use; otherwise, their filtration efficiency will be affected. However, the filters in existing fresh air systems need to be removed for cleaning, which is cumbersome and time-consuming. Furthermore, delayed cleaning can easily lead to reduced filtration effectiveness. When removing the filters, fine particles that are not firmly attached to the surface can fall into the fresh air system due to the shaking during removal. This can cause fine particulate matter such as smog to accumulate inside the system, making it difficult to collect effectively. These particles can then easily drift deeper into the system with the airflow, affecting its normal operation. Summary of the Invention

[0004] The purpose of this invention is to provide a fresh air system for filtration of smog, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fresh air system for filtration of smog, comprising a housing, a top cover snapped onto the top of the housing, an electric push rod fixedly installed on the top of the top cover, an insert plate movably penetrating the middle of the top of the top cover, a filter screen embedded in the middle of the insert plate, a brush strip provided on one side of the filter screen, an air inlet pipe penetrating the front of the housing, a baffle movably connected at the junction of the air inlet pipe and the housing, an air outlet pipe penetrating one side wall of the housing, a negative pressure fan installed on the back of the housing, a dust collection hopper movably threaded through the bottom of the housing, a support plate movably connected to the inner wall of the dust collection hopper, and a marker rod fixedly connected to the bottom of the support plate.

[0006] Preferably, a sealing strip is embedded at the junction of the insert plate and the top cover.

[0007] Preferably, the outer shell has a first cavity and a second cavity respectively, the air inlet pipe is connected to the first cavity, and the air outlet pipe is connected to the second cavity.

[0008] Preferably, the first cavity is connected to the second cavity via a filter screen, and the ash collection hopper is connected to the interior of the first cavity.

[0009] Preferably, a bracket is fixedly connected to the bottom of the inner side of the second cavity, and a stirrer is rotatably connected to the top of the bracket.

[0010] Preferably, the brush strip is engaged with the output end of the electric push rod, and the brush strip is movably connected to the filter screen via the electric push rod.

[0011] Preferably, the indicator rod is movably connected to the bottom end of the ash collection hopper, and a marking ring is embedded at the top of the indicator rod.

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

[0013] This smog filtration fresh air system uses an electric push rod, brush strip, insert plate, and baffle to allow the filter to be cleaned without removing it from the system. This enables timely wiping and cleaning of the filter, making cleaning more convenient and faster, and preventing situations where delayed cleaning affects the filtration effect.

[0014] This smog filtration fresh air system uses a dust collection hopper, tray, and indicator rod to ensure that fine particulate matter shaken off when the filter is removed falls into the dust collection hopper in the first cavity and is collected. The detachable dust collection hopper can be removed from the system after collecting all the smog particles remaining in the fresh air system, thereby reducing the probability that the fine particulate matter remaining in the system will be dispersed into the deeper parts of the system by the airflow and reducing the adverse effects on the normal operation of the fresh air system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the brush strip and baffle structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the marking rod and support structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the ash collection hopper and agitator plate of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Top cover; 3. Insert plate; 4. Electric push rod; 5. Negative pressure fan; 6. Sealing strip; 7. Air outlet pipe; 8. Ash collection hopper; 9. Air inlet pipe; 10. Filter screen; 11. Brush strip; 12. Stirring plate; 13. Bracket; 14. Marking rod; 15. Support plate; 16. Baffle; 17. First cavity; 18. Second cavity. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1 to 4 As shown, the fresh air system for smog filtration in this embodiment includes a housing 1, a top cover 2 that is snapped onto the top of the housing 1, an electric push rod 4 that is fixedly installed on the top of the top cover 2, an insert plate 3 that is movably inserted through the middle of the top of the top of the top cover 2, a filter screen 10 that is embedded in the middle of the insert plate 3, a brush strip 11 that is provided on one side of the filter screen 10, an air inlet pipe 9 that is inserted through the front of the housing 1, a baffle 16 that is movably connected at the junction of the air inlet pipe 9 and the housing 1, an air outlet pipe 7 that is inserted through one side wall of the housing 1, a negative pressure fan 5 that is installed on the back of the housing 1, a dust collection hopper 8 that is movably threaded through the bottom of the housing 1, a support plate 15 that is movably connected to the inner wall of the dust collection hopper 8, and a marker rod 14 that is fixedly connected to the bottom of the support plate 15.

[0024] Specifically, the top cover 2 can be detached from the outer shell 1, facilitating cleaning of the interior of the outer shell 1 and reducing the retention of smog particles inside. The electric push rod 4, when powered on, provides power to the brush strip 11, allowing it to brush along the surface of the filter screen 10. This enables cleaning of the filter screen 10 without disassembly, reducing the difficulty and time required for cleaning. The top of the insert plate 3 protrudes from the top of the top cover 2, allowing it to be pulled out separately from the top of the top cover 2. This simultaneously removes the filter screen 10, facilitating its removal and replacement for any malfunctioning filters. The filter screen 10 is a special smog filter capable of effectively adsorbing fine particulate matter such as smog. The brush strip 11 is made of brushed material, which generates static electricity when it comes into contact with and rubs against the filter screen 10, thereby adsorbing fine particles on the filter screen 10. At the same time, it can generate vibration during friction, so that the fine particles transferred to the brush strip 11 can be shaken off into the dust collection hopper 8 for collection, which is convenient for subsequent unified cleaning of smog fine particles. The baffle 16 can block the air inlet pipe 9 when no air is drawn in, so that when the filter screen 10 is cleaned in the first cavity 17, the smog particles wiped off the filter screen 10 are not easy to flow back into the air inlet pipe 9, so that the smog particles fall into the dust collection hopper 8 as much as possible for collection. The support plate 15 is made of metal material with good deformation ability. The indicator rod 14 is a round rod structure with a smooth surface and the bottom end is flush with the bottom surface of the dust collection hopper 8.

[0025] Furthermore, a sealing strip 6 is embedded at the junction of the insert plate 3 and the top cover 2. The function of the sealing strip 6 is to fill the gap at the junction of the insert plate 3 and the top cover 2, so that the interior of the outer casing 1 can maintain a negative pressure environment under the action of the negative pressure fan 5, thereby facilitating the intake pipe 9 to draw in outdoor air.

[0026] Furthermore, the interior of the outer casing 1 is provided with a first cavity 17 and a second cavity 18. The air inlet pipe 9 is connected to the first cavity 17, and the air outlet pipe 7 is connected to the second cavity 18. Outdoor air will flow from the first cavity 17 to the second cavity 18 and will pass through the filter screen 10 during the flow, thereby achieving the filtration of smog in the air.

[0027] Furthermore, the first cavity 17 is connected to the second cavity 18 through the filter 10, and the dust collection hopper 8 is connected to the interior of the first cavity 17. The filtered haze fine particles will remain in the first cavity 17 and fall into the dust collection hopper 8 at the bottom of the first cavity 17 for collection, so as to reduce the haze particles entering the deep interior of the fresh air system.

[0028] Furthermore, a bracket 13 is fixedly connected to the bottom of the inner side of the second cavity 18, and an air agitator 12 is rotatably connected to the top of the bracket 13. The function of the air agitator 12 is to turn the negative pressure airflow generated by the negative pressure fan 5 to the air outlet pipe 7, so that the air entering the outer shell 1 can be quickly discharged from the second cavity 18.

[0029] Furthermore, the brush strip 11 is engaged with the output end of the electric push rod 4, and the brush strip 11 is movably connected to the filter screen 10 through the electric push rod 4. Under the push of the electric push rod 4, the brush strip 11 can slide down along the filter screen 10 and contact and rub against the surface of the filter screen 10, thereby cleaning the smog particles intercepted on the filter screen 10.

[0030] Furthermore, the indicator rod 14 is movably connected to the bottom of the dust collection hopper 8, and a marking ring is embedded at the top of the indicator rod 14. The marking ring is used to help users confirm the amount of haze fine particulate matter collected in the dust collection hopper 8, so as to facilitate the timely removal of the fine particulate matter collected in the dust collection hopper 8 from the fresh air system.

[0031] The usage method of this embodiment is as follows: When using this fresh air system for smog filtration, the fresh air system needs to be installed in a suitable location and then connected to an external power source to start the negative pressure fan 5. This causes the air inside the outer casing 1 to be discharged from the air outlet 7, creating a negative pressure inside the outer casing 1. Outdoor air is then drawn into the first cavity 17 from the air inlet 9, and the baffle 16 is also blown up. The air entering the first cavity 17 then passes through the filter screen 10 and enters the second cavity 18. Fine smog particles in the air will be intercepted on the filter screen 10. When it is necessary to clean the filter screen 10, the negative pressure fan 5 is turned off. At this time, the baffle 16 blocks the junction of the air inlet 9 and the outer casing 1. Then, the power is turned on. The push rod 4 is activated, causing the output end of the electric push rod 4 to drive the brush strip 11 to slide down the surface of the filter screen 10. This causes the brush strip 11 to separate the fine particles intercepted on the filter screen 10 from the filter screen 10, and then shake them off onto the tray 15 in the dust collection hopper 8. This ensures that the filter screen 10 is cleaned in a timely manner. At the same time, the shaken-off smog fine particles will accumulate more and more in the dust collection hopper 8, causing the tray 15 to bend downwards due to compression. This pushes the marking rod at the bottom of the tray 15 to extend out of the bottom of the dust collection hopper 8 until the marking ring on the marking rod is exposed from the bottom of the dust collection hopper 8. Then, the dust collection hopper 8 can be unscrewed from the bottom of the outer casing 1, allowing the dust collection hopper 8 and the collected smog particles to be cleared out of the fresh air system.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A fresh air system for filtration of smog, comprising a housing (1), characterized in that: The top of the outer shell (1) is fitted with a top cover (2), and an electric push rod (4) is fixedly installed on the top of the top cover (2). A plate (3) is movably inserted through the middle of the top of the top of the top cover (2). A filter screen (10) is embedded in the middle of the plate (3). A brush strip (11) is provided on one side of the filter screen (10). An air inlet pipe (9) is inserted through the front of the outer shell (1). A baffle (16) is movably connected at the junction of the air inlet pipe (9) and the outer shell (1). An air outlet pipe (7) is inserted through one side wall of the outer shell (1). A negative pressure fan (5) is installed on the back of the outer shell (1). A dust collection hopper (8) is movably threaded through the bottom of the outer shell (1). A support plate (15) is movably connected to the inner wall of the dust collection hopper (8). A marker rod (14) is fixedly connected to the bottom of the support plate (15).

2. The fresh air system for filtration of smog according to claim 1, characterized in that: A sealing strip (6) is embedded at the junction of the insert plate (3) and the top cover (2).

3. The fresh air system for filtration of smog according to claim 1, characterized in that: The outer shell (1) has a first cavity (17) and a second cavity (18) respectively. The air inlet pipe (9) is connected to the first cavity (17), and the air outlet pipe (7) is connected to the second cavity (18).

4. The fresh air system for filtration of smog according to claim 3, characterized in that: The first cavity (17) is connected to the second cavity (18) through a filter screen (10), and the ash collection hopper (8) is connected to the interior of the first cavity (17).

5. The fresh air system for filtration of smog according to claim 4, characterized in that: A bracket (13) is fixedly connected to the bottom of the inner side of the second cavity (18), and a stir plate (12) is rotatably connected to the top of the bracket (13).

6. The fresh air system for filtration of smog according to claim 1, characterized in that: The brush strip (11) is engaged with the output end of the electric push rod (4), and the brush strip (11) is movably connected to the filter screen (10) through the electric push rod (4).

7. The fresh air system for filtration of smog according to claim 1, characterized in that: The indicator rod (14) is movably connected to the bottom end of the ash collection hopper (8), and a marking ring is embedded at the top of the indicator rod (14).

Images