Primary filter screen and filter with same

Abstract

The utility model relates to a primary filter screen and a filter with the primary filter screen, and relates to the technical field of air purifiers, the primary filter screen comprises a filter frame, the filter frame comprises a first mounting rack and a second mounting rack, the first mounting rack and the second mounting rack are symmetrical about the central plane of the filter frame, and the first mounting rack and the second mounting rack are arranged in parallel. And the first mounting rack and the second mounting rack are fixed through a detachable assembly. Compared with the prior art, when the primary filter screen is assembled, a worker can firstly align the first mounting frame and the second mounting frame, then move the first mounting frame and the second mounting frame to enable the first mounting frame and the second mounting frame to be close to each other, and then buckle and mount the first mounting frame and the second mounting frame through the detachable assembly; therefore, the effect of assembling the filtering frame is achieved; meanwhile, the cross section of the filtering frame is circular, and the filtering frame can be stacked in the transportation process, so that the filtering frame is convenient to transport.

Description

Technical Field

[0001] This application relates to the technical field of air purifiers, and in particular to a pre-filter and a filter with the same. Background Technology

[0002] As people's demands for quality of life increase and their attention to a healthy environment grows, the use of air purifiers is becoming more and more widespread.

[0003] An air purifier is a device that filters, removes, or decomposes pollutants in indoor air, thereby improving air quality. It is primarily used to remove particulate matter and microorganisms from the air. Air purifiers are widely used in homes, offices, hospitals, and other places where air quality needs to be improved.

[0004] In existing technologies, air purifier filters typically consist of a filter element and a pre-filter fitted around the periphery of the filter element. The pre-filter is a complete ring shape. When installing the pre-filter and filter element, the pre-filter needs to be fitted onto the filter element. However, because the outer diameter of the filter element is slightly larger than the inner diameter of the pre-filter, assembling the pre-filter is very inconvenient for workers. Utility Model Content

[0005] To facilitate the installation of the pre-filter by staff, this application provides a pre-filter and a filter with the pre-filter.

[0006] The primary filter provided in this application adopts the following technical solution:

[0007] A primary filter includes a filter frame, the filter frame including a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket being symmetrical about the center plane of the filter frame, and the first mounting bracket and the second mounting bracket being fixed together by a detachable component.

[0008] By adopting the above technical solution, when assembling the primary filter, the staff can first align the first mounting bracket and the second mounting bracket, then move the first mounting bracket and the second mounting bracket so that they are close together, and then use the detachable components to fasten and install the first mounting bracket and the second mounting bracket, thereby completing the assembly of the filter frame.

[0009] Optionally, the opposite end faces of the first mounting bracket and the second mounting bracket are respectively provided with a plug-in ring and a snap-fit ​​block that matches the plug-in ring.

[0010] By adopting the above technical solution, when the staff fixes the first mounting frame and the second mounting frame together, the insertion ring and snap-fit ​​block on the end face of the first mounting frame can cooperate with the snap-fit ​​block and insertion ring on the end face of the second mounting frame, so that the first mounting frame and the second mounting frame are combined to form a filter frame.

[0011] Optionally, the end of the snap-fit ​​block facing away from the filter frame is provided with a barb, and the inner wall of the plug ring is provided with a slot that engages with the barb.

[0012] By adopting the above technical solution, when the snap-fit ​​block is inserted into the plug ring, since the snap-fit ​​block has a barb on the end away from the filter frame, on the one hand, the snap-fit ​​block can be easily inserted into the plug ring during installation and the snap-fit ​​is achieved by the guide of the snap-fit ​​groove; on the other hand, the snap-fit ​​structure of the barb and the snap-fit ​​groove can effectively reduce the snap-fit ​​block from falling out of the plug ring, thereby improving the stability of the connection.

[0013] Optionally, the first mounting bracket and the second mounting bracket are further provided with positioning pins and positioning holes corresponding to the positioning pins on their respective end faces.

[0014] By adopting the above technical solution, the positioning holes and positioning pins on the first mounting bracket can cooperate with the positioning pins and positioning holes on the second mounting bracket. Due to the positioning holes and positioning pins, the first mounting bracket and the second mounting bracket can be precisely aligned during installation, effectively fixing the relative positions of the first mounting bracket and the second mounting bracket.

[0015] Optionally, the detachable component includes a magnetic attachment disposed on the first mounting bracket and the second mounting bracket.

[0016] By adopting the above technical solution, the first mounting bracket and the second mounting bracket can be quickly connected and disassembled through magnetic attachments, making it easier for workers to install the first mounting bracket and the second mounting bracket, while ensuring a more stable connection between the first mounting bracket and the second mounting bracket.

[0017] Optionally, the magnetic attractor includes a first magnet and a first iron sheet disposed on the first mounting bracket, and a second magnet and a second iron sheet disposed on the second mounting bracket, wherein the first magnet and the second iron sheet are magnetically attracted to each other, and the second magnet and the first iron sheet are magnetically attracted to each other.

[0018] By adopting the above technical solution, when the workers install the first mounting bracket and the second mounting bracket, they can install them by mutual magnetic attraction between the magnet and the iron sheet, thus ensuring the connection stability between the first mounting bracket and the second mounting bracket.

[0019] Optionally, a first limiting ring is provided at one end of the first mounting bracket perpendicular to the center line of the filter frame, and a second limiting ring is provided at one end of the second mounting bracket corresponding to the first mounting bracket.

[0020] By adopting the above technical solution, when the workers assemble the first mounting frame and the second mounting frame, since the first mounting frame and the second mounting frame are respectively provided with a first limiting ring and a second limiting ring, the first limiting ring and the second limiting ring can first abut against the top of the matching filter element, thereby improving the installation efficiency of the primary filter screen.

[0021] Optionally, a filter includes a filter element and a pre-filter screen as described in any of the above.

[0022] By adopting the above technical solution, the filter uses the aforementioned pre-filter, which makes it easier for staff to assemble the pre-filter. On the other hand, since the filter consists of two parts, the filter element and the pre-filter, the filter can purify the air evenly and effectively in a short time.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When assembling the primary filter, the staff can first align the first and second mounting brackets, then move the first and second mounting brackets closer together, and then use the detachable components to fasten and install the first and second mounting brackets, thereby completing the assembly of the filter frame.

[0025] 2. The first and second mounting brackets can be quickly connected and disassembled via magnetic attachments, making it easier for workers to install the first and second mounting brackets while ensuring a more stable connection between them. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a primary filter.

[0027] Figure 2 This is a schematic diagram of the structure of the first mounting bracket in Embodiment 1.

[0028] Figure 3 This is a schematic diagram of the structure of the second mounting bracket in Embodiment 1.

[0029] Figure 4 yes Figure 2 Enlarged view of the partial structure of part A.

[0030] Figure 5 yes Figure 3 Enlarged view of the partial structure of part B.

[0031] Figure 6 This is a schematic diagram of the structure of the first mounting bracket in Embodiment 2.

[0032] Figure 7 This is a schematic diagram of the structure of the second mounting bracket in Embodiment 2.

[0033] Figure 8 This is a schematic diagram of the filter structure.

[0034] Explanation of reference numerals in the attached drawings: 1. Primary filter screen; 2. Filter frame; 3. First mounting bracket; 31. First vertical rod; 32. Second vertical rod; 33. First limiting ring; 4. Second mounting bracket; 41. Third vertical rod; 42. Fourth vertical rod; 43. Second limiting ring; 5. Detachable component; 51. Snap-fit ​​block; 511. Barb; 52. Insertion ring; 521. Slot; 53. Magnetic component; 531. First magnet; 532. First iron sheet; 533. Second magnet; 534. Second iron sheet; 6. Positioning pin; 7. Positioning hole; 8. Filter; 9. Filter element. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0036] This application discloses a filter.

[0037] Example 1

[0038] Reference Figure 1 A primary filter 1 is generally annular and includes a filter frame 2. The filter frame 2 is composed of a first mounting bracket 3 and a second mounting bracket 4. Both the first mounting bracket 3 and the second mounting bracket 4 are semi-circular arc-shaped. The first mounting bracket 3 and the second mounting bracket 4 are connected and fixed by a detachable component 5. When assembling the filter frame 2, the workers can more easily install the first mounting bracket 3 and the second mounting bracket 4 by using the detachable component 5.

[0039] Reference Figure 2 and Figure 3 The first mounting bracket 3 and the second mounting bracket 4 are respectively provided with a first limiting ring 33 and a second limiting ring 43 on the side ends perpendicular to the central axis of the filter frame 2. The first mounting bracket 3 and the second mounting bracket 4 are respectively provided with a first vertical rod 31 and a second vertical rod 32 on the two sides corresponding to the first mounting bracket 3. The second mounting bracket 4 and the first mounting bracket 3 are respectively provided with a third vertical rod 41 corresponding to the first vertical rod 31 and a fourth vertical rod 42 corresponding to the second vertical rod 32 on the two sides corresponding to the first mounting bracket 3.

[0040] Reference Figure 2 and Figure 3The first vertical rod 31 is also provided with four positioning pins 6 at intervals. The specific number of positioning pins 6 can be selected according to the actual situation. The third vertical rod 41 is provided with positioning holes 7 corresponding to the positioning pins 6 at intervals. The number of positioning holes 7 matches the number of positioning pins 6. The positions of the positioning pins 6 and positioning holes 7 are staggered with the positions of the detachable components 5. When the workers install the first mounting bracket 3 and the second mounting bracket 4, the positioning pins 6 on the two mounting brackets also correspond one-to-one with the corresponding positioning holes 7, thereby improving the accuracy of installation.

[0041] Reference Figure 4 and Figure 5 The detachable component 5 includes a snap-fit ​​block 51 and a matching insertion ring 52. The first vertical rod 31 is provided with snap-fit ​​blocks 51, and three snap-fit ​​blocks 51 are evenly arranged along the axial direction of the first vertical rod 31. The specific number of snap-fit ​​blocks 51 can be selected according to actual conditions. The third vertical rod 41, corresponding to the first vertical rod 31, has three matching insertion rings 52 evenly arranged along its axial direction. The specific number of insertion rings 52 can be selected according to actual conditions. During installation, the first vertical rod 31 and the third vertical rod 41 are aligned, and the snap-fit ​​blocks 51 on the first vertical rod 31 match the insertion rings 52 on the third vertical rod 41. The installation of the second vertical rod 32 and the fourth vertical rod 42 is consistent with the installation of the first vertical rod 31 and the third vertical rod 41.

[0042] Reference Figure 4 and Figure 5 The end of the snap-fit ​​block 51 furthest from the filter frame is provided with a barb 511, and the inner wall of the insertion ring 52 is provided with a slot 521 that engages with the barb 511. When the operator installs the first mounting bracket 3 and the second mounting bracket 4 respectively, the engagement of the barb 511 and the slot 521 can effectively reduce the probability of the snap-fit ​​block 51 falling off the insertion ring 52.

[0043] The implementation principle of Example 1 is as follows: When the staff assembles the primary filter 1, they can first align the first mounting bracket and the second mounting bracket, and then move the first mounting bracket and the second mounting bracket. At the same time as the first mounting bracket and the second mounting bracket are close together, the snap-fit ​​block 51 and the insertion ring 52 on the second mounting bracket 4 are fixed with the insertion ring 52 and the snap-fit ​​block 51 on the first mounting bracket 3, thereby completing the assembly of the filter frame.

[0044] Example 2

[0045] Reference Figure 6 and Figure 7The difference between this embodiment and embodiment 1 is that the detachable component 5 includes a magnetic attractor 53 disposed on the corresponding end faces of the first mounting bracket 3 and the second mounting bracket 4. The magnetic attractor 53 includes a first magnet 531 and a first iron piece 532 disposed on the first mounting bracket 3, and a second magnet 533 and a second iron piece 534 disposed on the second mounting bracket 4 that are magnetically attracted to the first iron piece 532 and magnetically attracted to the first magnet 531.

[0046] The implementation principle of Example 2 is as follows: When the staff is assembling the primary filter 1, the first magnet 531 and the first iron piece 532 set on the first mounting frame 3 can be magnetically attracted to the second magnet 533 and the second iron piece 534 on the second mounting frame 4, thereby realizing the splicing of the first mounting frame 3 and the second mounting frame 4, which makes it easier for the staff to splice and install the primary filter 1.

[0047] Example 3

[0048] This embodiment provides a filter 8, as shown in the reference. Figure 8 It may include the primary filter 1 and the filter element 9 built into the primary filter 1 provided in any of the above embodiments 1 or 2, wherein the first limiting ring 33 on the first mounting bracket 3 and the second limiting ring 43 on the second mounting bracket 4 respectively abut against the top of the filter element 9.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A primary filter screen, characterized in that, Includes a filter frame (2), the filter frame (2) includes a first mounting bracket (3) and a second mounting bracket (4), the first mounting bracket (3) and the second mounting bracket (4) are symmetrical about the center plane of the filter frame (2), and the first mounting bracket (3) and the second mounting bracket (4) are fixed together by a detachable component (5).

2. A primary filter according to claim 1, characterized in that, The first mounting bracket (3) and the second mounting bracket (4) are respectively provided with a plug ring (52) and a snap block (51) that matches the plug ring (52) on their opposite end faces.

3. A primary filter screen according to claim 2, characterized in that, The snap-fit ​​block (51) has a barb (511) at one end away from the filter frame (2), and the inner wall of the plug ring (52) has a slot (521) that engages with the barb (511).

4. A primary filter screen according to claim 2, characterized in that, The first mounting bracket (3) and the second mounting bracket (4) are provided with positioning pins (6) and positioning holes (7) corresponding to the positioning pins (6) on their respective end faces.

5. A primary filter screen according to claim 1, characterized in that, The detachable component (5) includes a magnetic element (53) disposed on the first mounting bracket (3) and the second mounting bracket (4).

6. A primary filter screen according to claim 5, characterized in that, The magnetic component (53) includes a first magnet (531) and a first iron sheet (532) disposed on the first mounting bracket (3), and a second magnet (533) and a second iron sheet (534) disposed on the second mounting bracket (4). The first magnet (531) and the second iron sheet (534) are magnetically attracted to each other, and the second magnet (533) and the first iron sheet (532) are magnetically attracted to each other.

7. A primary filter according to claim 1, characterized in that, The first mounting bracket (3) is provided with a first limiting ring (33) on one end perpendicular to the center line of the filter frame (2), and the second mounting bracket (4) is provided with a second limiting ring (43) on one end corresponding to the first mounting bracket (3).

8. A filter, characterized in that, It includes a filter element (9) and a primary filter screen fitted with any one of the claims 1-7.

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