Fresh air ventilator convenient to clean

Abstract

The utility model relates to the technical field of fresh air machines, and discloses a fresh air machine convenient to clean, which comprises a fresh air machine body, two exhaust fans and two air inlet pipes, the two exhaust fans and the two air inlet pipes are mounted at two ends of the fresh air machine body, two replacement ports are formed in the upper surfaces of the two air inlet pipes in a penetrating manner, and the inner walls of the two replacement ports are connected with frames in a sliding manner; filter screens are connected to the inner walls of the two frames, two supporting blocks are fixedly connected to the sides, close to the replacement opening, of the two air inlet pipes, a rotating assembly is connected between the two supporting blocks, the rotating assembly is located between the two frames on the same air inlet pipe, and the two frames are connected with the rotating assembly. According to the fresh air machine convenient to clean, after the fresh air machine body is used for a period of time and two filter screens in the two air inlet pipes are stained with dust or other sundries, only the other two frames on the two air inlet pipes need to be pressed downwards at the moment, exchange of the filter screens can be automatically completed, and at the moment, the replaced filter screens are cleaned and replaced; convenience and rapidness are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air fans, in particular to a fresh air fan which is easy to clean. Background Art

[0002] The fresh air fan is an air purification and ventilation equipment, which is mainly used to improve indoor air quality. It is widely used in residences, offices, schools, hospitals and other places, and has become an important equipment for improving indoor air quality and ensuring people's breathing health.

[0003] The patent with announcement number CN211781766U discloses a new type of fresh air fan, including a chassis, with air intake and air outlet on the left and right sides of the chassis, a fan embedded in the air outlet, and the fan is arranged inside the chassis, and an easily removable heat exchange core is also arranged inside the chassis; in this new air fan, the heat exchange core is connected to the chassis through the cooperation of a card column and a card slot, which is convenient for removal and cleaning; the heat conductive plate adopts high-quality hydrophilic aluminum foil material as the carrier, has a long service life, and will not produce secondary pollution. The surface of the heat conductive plate is subjected to spiral corrugated stamping processing to enhance heat transfer, the heat transfer area is increased by 10%, and the heat exchange efficiency can reach more than 70%.

[0004] However, the above-mentioned new air blower still has the following problems:

[0005] During the ventilation process, the current fresh air fans often inhale a certain amount of dust or other debris from the outside air. Because of the function of the filter, these dust and debris will stick to the filter, which will cause the filter to be blocked over time, thus affecting the ventilation effect.

[0006] Currently, most of the fresh air fan filters are connected and fixed by bolts. Although it is convenient to install and disassemble, the fresh air fan must be stopped and wait during the disassembly to clean the filter. The filter must be cleaned and dried before it can be reinstalled on the fresh air fan. The whole process is very time-consuming and inconvenient. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a fresh air fan which is easy to clean. When two of the filters in the two air inlet pipes are covered with dust or other debris after the fresh air fan body has been used for a period of time, it is only necessary to press down the other two frames on the two air inlet pipes to automatically complete the interchange of the filters. At this time, the replaced filters can be cleaned and replaced, which is convenient and quick.

[0008] The utility model provides the following technical solutions: a fresh air fan which is easy to clean, comprising a fresh air fan body, two exhaust fans and two air inlet pipes installed at both ends of the fresh air fan body, the upper surfaces of the two air inlet pipes are penetrated with two replacement ports, the inner walls of the two replacement ports are slidably connected with frames, the inner walls of the two frames are connected with filters, the two air inlet pipes are fixedly connected with two support blocks on one side close to the replacement ports, a rotating assembly is connected between the two support blocks, the rotating assembly is located between the two frames on the same air inlet pipe, and the two frames are connected to the rotating assembly.

[0009] Furthermore, the rotating assembly includes a rotating rod and two gears. The side walls of the two support blocks are penetrated with rotating holes. The two ends of the rotating rod are respectively rotatably connected to the inner walls of the two rotating holes. The two gears are respectively mounted on the two ends of the rotating rod and fixedly connected to the outer wall of the rotating rod. The two gears are connected to both frames.

[0010] Furthermore, racks are fixedly connected to both ends of adjacent sides of the two frames, and the two gears are respectively meshed with the racks at the same end of the two frames.

[0011] Furthermore, a locking bolt passes through and is threadedly connected to the inner wall of one of the support blocks, and the screw rod of the locking bolt abuts against the outer wall of the rotating rod.

[0012] Furthermore, a mounting cavity is provided on one side of the two frames which are away from each other, and the outer walls of the two filters are slidably connected to the inner walls of the two mounting cavities respectively.

[0013] Furthermore, a plurality of connection ports are provided on the upper surfaces of the two installation cavities, and a plurality of connection blocks are fixedly connected to the upper surfaces of the two filter screens. The plurality of connection blocks are respectively located in the plurality of connection ports and are fastened together by bolts.

[0014] Furthermore, two receiving cavities are formed on the inner wall of the air inlet duct, and the outer walls of the two frames at one end away from the replacement port are slidably connected to the inner walls of the two receiving cavities respectively.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] This type of fresh air fan which is easy to clean has two replacement ports on the two air inlet pipes of the fresh air fan body, and frames and filters are set in the two replacement ports, and the two frames are connected at the same time by a rotating component. When the fresh air fan body has been used for a period of time, when two of the filters in the two air inlet pipes are covered with dust or other debris, at this time, you only need to press down the other two frames on the two air inlet pipes to automatically complete the exchange of the filters. At this time, you can clean and replace the replaced filters, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the overall appearance of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall appearance of the utility model without the frame and filter screen;

[0019] Figure 3 For this utility model Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 It is a detailed connection diagram of the rotating assembly and two frames of the utility model;

[0021] Figure 5 For this utility model Figure 4 Exploded diagram of the various components.

[0022] In the figure: 1. Fresh air fan body; 2. Exhaust fan; 3. Air inlet duct; 4. Frame; 5. Filter; 6. Rack; 7. Support block; 8. Locking bolt; 9. Connecting block; 10. Turn rod; 11. Gear; 301. Storage cavity; 302. Replacement port; 401. Installation cavity; 402. Connecting port; 701. Turn hole. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5 A fresh air fan that is easy to clean comprises a fresh air fan body 1, two exhaust fans 2 and two air inlet pipes 3 installed at both ends of the fresh air fan body 1, the upper surfaces of the two air inlet pipes 3 are penetrated with two replacement ports 302, the inner walls of the two replacement ports 302 are slidably connected with frames 4, the inner walls of the two frames 4 are connected with filters 5, the two air inlet pipes 3 are fixedly connected to one side of the replacement ports 302 close to two support blocks 7, a rotating assembly is connected between the two support blocks 7, the rotating assembly is located between the two frames 4 on the same air inlet pipe 3, and the two frames 4 are connected to the rotating assembly.

[0025] The new air blower in the utility model that is easy to clean is similar to the existing new air blower structure, such as a new type of new air blower disclosed in the patent with publication number CN211781766U. Figures 1 to 5As shown, after the fresh air fan which is easy to clean in the utility model has been used for a period of time, when two of the filters 5 in the two air inlet pipes 3 are covered with dust or other debris, it is only necessary to disconnect the main power supply of the fresh air fan body 1 first, and then install the two new filters 5 in the other two frames 4 on the two air inlet pipes 3, and then press the two newly replaced frames 4 downward. As the two frames 4 descend along the replacement port 302, the old filter 5 and frame 4 originally located in the air inlet pipe 3 will be pushed out of the air inlet pipe 3 from the other replacement port 302 through the rotating assembly during the descent. At this time, the pushed out filter 5 can be removed and cleaned and replaced. It is convenient and quick, and during the interchange and cleaning of the two filters 5, there is no need to wait for the filters 5 to be cleaned and dried, and the fresh air fan body 1 can be directly turned on for use, which saves more time. After using it for a period of time, it is only necessary to interchange the filters 5 again according to the above steps.

[0026] Please refer to Figure 4 and Figure 5 The rotating assembly includes a rotating rod 10 and two gears 11. The side walls of the two support blocks 7 are penetrated with rotating holes 701. The two ends of the rotating rod 10 are respectively rotatably connected with the inner walls of the two rotating holes 701. The two gears 11 are respectively sleeved on the two ends of the rotating rod 10 and fixedly connected with the outer wall of the rotating rod 10. The two gears 11 are connected with the two frames 4. The two ends of the adjacent sides of the two frames 4 are fixedly connected with racks 6. The two gears 11 are respectively meshed with the racks 6 at the same end of the two frames 4.

[0027] More specifically, when the new frame 4 and filter 5 are pressed downward along the replacement port 302, the two racks 6 on the frame 4 will descend together. When the racks 6 descend, they will engage and drive the gear 11 to rotate around the rotating rod 10, so that the rack 6 on the other frame 4 will be pushed up through the gear 11, so that the old frame 4 and filter 5 can be driven up while the new frame 4 and filter 5 are descending, thereby completing the interchange, which is convenient and quick.

[0028] Please refer to Figure 3 , a locking bolt 8 is passed through and threadedly connected to the inner wall of one of the support blocks 7, and the screw of the locking bolt 8 abuts against the outer wall of the rotating rod 10. After the frame 4 and the filter screen 5 have been interchanged, in order to prevent the frame 4 and the filter screen 5 from shaking by themselves, the locking bolt 8 can be rotated to make them descend along the inner wall of the support block 7, and during the descent, the rotating rod 10 inside the support block 7 is squeezed into the rotating hole 701 of the support block 7, so that the gear 11 cannot rotate, so the frame 4 and the filter screen 5 cannot be lifted or lowered by themselves.

[0029] Please refer to Figure 5The two frames 4 are provided with mounting cavities 401 on the sides away from each other, and the outer walls of the two filter screens 5 are respectively slidably connected with the inner walls of the two mounting cavities 401. By providing the mounting cavities 401, the external space occupied by the filter screens 5 can be reduced.

[0030] Please refer to Figure 5 The upper surfaces of the two installation cavities 401 are provided with a plurality of connection ports 402, and the upper surfaces of the two filter screens 5 are fixedly connected with a plurality of connection blocks 9, which are respectively located in the plurality of connection ports 402 and are fastened by bolts. By providing the connection ports 402 and the connection blocks 9, firstly, the connection tightness between the filter screen 5 and the frame 4 can be increased; secondly, by bolt connection, the filter screen 5 can be kept from falling off the frame 4 during installation, and it is also more convenient to operate when it needs to be disassembled later.

[0031] Please refer to Figure 2 The inner wall of the air inlet pipe 3 is provided with two receiving cavities 301, and the outer walls of the two frames 4 at one end away from the replacement port 302 are respectively slidably connected with the inner walls of the two receiving cavities 301. By providing the receiving cavities 301, the frame 4 can be accommodated so that it can be completely stuck in the middle of the air inlet pipe 3, thereby increasing the tightness of the connection between the frame 4 and the air inlet pipe 3.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fresh air fan that is easy to clean, comprising a fresh air fan body (1), two exhaust fans (2) installed at both ends of the fresh air fan body (1) and two air inlet pipes (3), characterized in that: Two replacement ports (302) are provided through the upper surfaces of the two air inlet pipes (3); the inner walls of the two replacement ports (302) are slidably connected to frames (4); the inner walls of the two frames (4) are connected to filters (5); two support blocks (7) are fixedly connected to one side of the two air inlet pipes (3) close to the replacement ports (302); a rotating assembly is connected between the two support blocks (7); the rotating assembly is located between the two frames (4) on the same air inlet pipe (3), and the two frames (4) are connected to the rotating assembly.

2. The fresh air blower that is easy to clean according to claim 1, characterized in that: The rotating assembly comprises a rotating rod (10) and two gears (11); the side walls of the two support blocks (7) are penetrated with rotating holes (701); the two ends of the rotating rod (10) are respectively rotatably connected to the inner walls of the two rotating holes (701); the two gears (11) are respectively sleeved on the two ends of the rotating rod (10) and fixedly connected to the outer wall of the rotating rod (10); and the two gears (11) are connected to the two frames (4).

3. The fresh air blower that is easy to clean according to claim 2 is characterized in that: Both ends of the adjacent sides of the two frames (4) are fixedly connected with racks (6), and the two gears (11) are respectively meshed with the racks (6) at the same end of the two frames (4).

4. A fresh air blower that is easy to clean according to claim 2 or 3, characterized in that: A locking bolt (8) penetrates and is threadedly connected to the inner wall of one of the support blocks (7), and the screw rod of the locking bolt (8) abuts against the outer wall of the rotating rod (10).

5. A fresh air blower that is easy to clean according to claim 1, 2 or 3, characterized in that: A mounting cavity (401) is provided on one side of the two frames (4) that is away from each other, and the outer walls of the two filter screens (5) are slidably connected to the inner walls of the two mounting cavities (401) respectively.

6. The fresh air blower that is easy to clean according to claim 5, characterized in that: The upper surfaces of the two installation cavities (401) are each provided with a plurality of connection ports (402); the upper surfaces of the two filter screens (5) are each fixedly connected with a plurality of connection blocks (9); the plurality of connection blocks (9) are respectively located in the plurality of connection ports (402) and are all fastened and connected by bolts.

7. A fresh air blower that is easy to clean according to claim 1, 2, 3 or 6, characterized in that: The inner wall of the air inlet pipe (3) is provided with two receiving cavities (301), and the outer walls of the two frames (4) at one end away from the replacement port (302) are respectively slidably connected to the inner walls of the two receiving cavities (301).

Images