Folding cover of air filtering device

Abstract

The utility model relates to the field of air filtering devices, and discloses a folding cover of an air filtering device, which comprises two first frames and two second frames, the two first frames and the two second frames are respectively and symmetrically arranged, the top surfaces of the two second frames are respectively provided with a semicircular groove, and the two first frames and the two second frames are symmetrically arranged. And semicircular plates are fixed to one ends of the two first frames correspondingly, the two semicircular plates are rotationally arranged on the two semicircular grooves correspondingly, and the other ends of the two first frames and the other ends of the two second frames are rotationally arranged correspondingly. According to the folding cover, the first frame, the second frame, the semicircular grooves and the semicircular plates are used in cooperation, folding of the folding cover is facilitated, the occupied space during storage or transportation can be reduced, and therefore the transportation and storage difficulty and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of air filtration devices, specifically a folding cover for an air filtration device. Background Technology

[0002] Air filtration devices are increasingly widely used in modern industry, homes, and commerce. Their main function is to remove harmful substances such as particulate matter, pollutants, bacteria, and viruses from the air through filter media to provide clean air. Traditional air filter units include a filter used to filter the airflow generated by a fan, thereby removing particles and other impurities from the air.

[0003] Currently, filters available for air filtration devices on the market are larger in size and shape in order to not restrict airflow and provide the required purification effect. This results in larger cover plates that fit the filters, which has the following disadvantages: because the cover plates cannot be folded, they occupy a lot of space during storage or transportation, which not only increases the difficulty of transportation and storage, but also increases costs. Utility Model Content

[0004] The purpose of this invention is to provide a folding cover for an air filtration device to solve the problem that the cover cannot be folded, thus occupying a lot of space during storage or transportation, which not only increases the difficulty of transportation and storage, but also increases costs.

[0005] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a folding cover for an air filtration device, comprising two first frames and two second frames, the two first frames and the two second frames being symmetrically arranged, the top surfaces of the two second frames being respectively provided with semi-circular grooves, one end of the two first frames being respectively fixed with a semi-circular plate, the two semi-circular plates being rotatably arranged on the two semi-circular grooves, and the other ends of the two first frames and the two second frames being rotatably arranged.

[0006] Preferably, two snap-fit ​​blocks are fixed to the bottom surfaces of the two second frames respectively, and a snap-fit ​​interface is provided on one side of each of the two snap-fit ​​blocks. A rotating shaft is fixed to the bottom surfaces of the two first frames and the two semi-circular plates respectively. The rotating shaft is detachably snapped into the snap-fit ​​block through the snap-fit ​​interface, and a stop block is fixed to the bottom end of each of the two rotating shafts.

[0007] Preferably, limit plates are fixed to the inner top surfaces of the two first frames.

[0008] Preferably, the top surface of both semicircular plates is provided with a directional indicator.

[0009] Preferably, the top surfaces of the two first frames and the two second frames are respectively provided with weight-reducing grooves.

[0010] Preferably, positioning holes are provided on the top surfaces of both first frames and both second frames.

[0011] Compared with the prior art, the folding cover of an air filtration device that adopts the above technical solution has the following beneficial effects:

[0012] 1. During use, when the folding cover needs to be stored or transported, the two second frames can be pressed inwards, causing the two semi-circular plates to rotate smoothly on the two semi-circular grooves, thereby folding the entire first and second frames, making the folding cover easy to fold and store. Conversely, when the folding cover needs to be used, the two first frames are pulled outwards, making the first frame perpendicular to the adjacent second frame, forming a stable folding cover. The coordinated use of the first frame, second frame, semi-circular grooves, and semi-circular plates facilitates the folding of the cover, reducing the space occupied during storage or transportation, thus lowering the difficulty and cost of transportation and storage.

[0013] Second, in use, the coordinated use of snap-fit ​​blocks, snap-fit ​​interfaces, and rotating shafts ensures a stable connection between the first and second frames while facilitating easy assembly and disassembly. The rotating shaft is snapped into the snap-fit ​​block via the snap-fit ​​interface, while the stop block effectively prevents accidental disengagement of the rotating shaft during rotation. This not only ensures structural stability but also simplifies the installation and disassembly process. The directional indicators provide visual guidance for folding and unfolding directions, enabling operators to quickly identify the correct direction during operation, thereby improving accuracy and efficiency.

[0014] Thirdly, during use, the weight-reducing grooves not only reduce the weight of the frame, but also allow workers to ensure correct component installation by aligning the positioning holes, thus avoiding incorrect assembly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 This is a top view schematic diagram of an embodiment.

[0017] Figure 3 This is a bottom view diagram of an embodiment.

[0018] Figure 4 For the example Figure 3 Enlarged diagram of point A in the middle.

[0019] In the diagram: 101, First frame; 102, Second frame; 3, Semi-circular groove; 4, Semi-circular plate; 5, Snap-fit ​​block; 6, Snap-fit ​​interface; 7, Rotating shaft; 8, Stop block; 9, Limiting plate; 10, Indicator; 11, Weight reduction groove; 12, Positioning hole. Detailed Implementation

[0020] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-4 As shown, a folding cover for an air filtration device includes two first frames 101 and two second frames 102, which are symmetrically arranged. The top surfaces of the two second frames 102 are respectively provided with semi-circular grooves 3. One end of each of the two first frames 101 is fixed with a semi-circular plate 4, which is rotatably mounted on the two semi-circular grooves 3. The other ends of the two first frames 101 and the two second frames 102 are respectively rotatably mounted.

[0022] When the staff needs to store or transport the folding cover during use, they can press the two second frames 102 inwards respectively, so that the two semi-circular plates 4 can rotate smoothly on the two semi-circular grooves 3 respectively, thereby driving the entire first frame 101 and the second frame 102 to fold, so that the folding cover can be folded and is easy to fold and store.

[0023] Conversely, when the folding cover is needed, the two first frames 101 are pulled outwards respectively, so that the first frame 101 and the adjacent second frame 102 are perpendicular to each other, forming a stable folding cover. It should be noted that when installing the folding cover to the filter body, two sets of folding covers are required. The two sets of folding covers are respectively installed on the top and bottom surfaces of the filter body (the filter body is not shown in the figure). The filter body described above is an existing structure. You can refer to the US Patent Publication No. US10888809B2. The folding cover of this application is compatible with the filter body in the referenced document.

[0024] The combined use of the first frame 101, the second frame 102, the semi-circular groove 3, and the semi-circular plate 4 facilitates the folding of the cover, thereby reducing the space occupied during storage or transportation, and thus reducing the difficulty and cost of transportation and storage.

[0025] like Figures 1-4 As shown, two snap-fit ​​blocks 5 are fixed to the bottom surfaces of the two second frames 102 respectively. Each snap-fit ​​block 5 has a snap-fit ​​interface 6 on one side. The bottom surfaces of the two first frames 101 and the two semi-circular plates 4 are respectively fixed with rotating shafts 7. The rotating shafts 7 are detachably snapped into the snap-fit ​​blocks 5 through the snap-fit ​​interface 6. The bottom ends of the two rotating shafts 7 are respectively fixed with stop blocks 8.

[0026] In use, the combination of snap-fit ​​block 5, snap-fit ​​interface 6, and rotating shaft 7 makes the connection between the first frame 101 and the second frame 102 both stable and easy to disassemble and assemble. The rotating shaft 7 is snapped into the snap-fit ​​block 5 through the snap-fit ​​interface 6, while the stop block 8 effectively prevents the rotating shaft 7 from accidentally coming off during rotation, which not only ensures the stability of the structure, but also simplifies the installation and disassembly process.

[0027] like Figures 1-4 As shown, limit plates 9 are fixed to the inner top surfaces of the two first frames 101 respectively, and the top surfaces of the two semi-circular plates 4 are provided with pointers 10.

[0028] During use, the limiting plate 9 helps to block one end of the second frame 102, preventing misalignment or excessive swaying during folding or unfolding. This not only enhances the stability of the structure but also ensures smooth folding and unfolding operations. The indicator 10 provides visual indication of the folding and unfolding direction, allowing operators to quickly identify the correct direction, thereby improving the accuracy and efficiency of the operation.

[0029] like Figures 1-4 As shown, the top surfaces of the two first frames 101 and the two second frames 102 are respectively provided with weight reduction grooves 11, and the top surfaces of the two first frames 101 and the two second frames 102 are all provided with positioning holes 12.

[0030] During use, the weight reduction groove 11 can reduce the weight of the frame. Workers can ensure the correct installation of the components by aligning the positioning holes 12, thereby avoiding incorrect assembly. When the positioning holes 12 on the first frame 101 coincide with the positioning holes 12 on the second frame 102, it means that the first frame 101 and the adjacent second frame 102 are in a mutually perpendicular state.

[0031] 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. A folding cover for an air filter device comprising two first frames (101) and two second frames (102), characterized in that, Two first frames (101) and two second frames (102) are symmetrically arranged. The top surfaces of the two second frames (102) are respectively provided with semi-circular grooves (3). One end of each of the two first frames (101) is fixed with a semi-circular plate (4). The two semi-circular plates (4) are rotatably arranged on the two semi-circular grooves (3). The other ends of the two first frames (101) and the two second frames (102) are rotatably arranged. Two snap-fit ​​blocks (5) are fixed to the bottom surfaces of the two second frames (102), and a snap-fit ​​interface (6) is provided on one side of each of the two snap-fit ​​blocks (5). A rotating shaft (7) is fixed to the bottom surfaces of the two first frames (101) and the two semi-circular plates (4). The rotating shaft (7) is detachably snapped into the snap-fit ​​block (5) through the snap-fit ​​interface (6). A stop block (8) is fixed to the bottom end of each of the two rotating shafts (7).

2. A folding cover for an air filter assembly according to claim 1, wherein: Limiting plates (9) are fixed to the inner top surfaces of the two first frames (101).

3. A folding cover for an air filter assembly according to claim 2, wherein: The top surfaces of both semicircular plates (4) are provided with pointers (10).

4. The folding cover for an air filter assembly of claim 1 wherein: The top surfaces of the two first frames (101) and the two second frames (102) are respectively provided with weight reduction grooves (11).

5. A folding cover for an air filter assembly according to claim 4 wherein: Positioning holes (12) are provided on the top surfaces of the two first frames (101) and the two second frames (102).

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