An assembled filter screen structure

Abstract

The application belongs to the technical field of air purification, and particularly relates to an assembled filter screen structure. The assembled filter screen structure comprises a filter screen body, a first frame assembly, and a second frame assembly which is detachably connected with the first frame assembly. The first frame assembly and the second frame assembly are connected and matched to expand the connection of the filter screen body and fill the mounting opening formed by the connection of the first frame assembly and the second frame assembly. The assembled filter screen structure can be folded and disassembled during transportation and storage, so that the packaging volume of the finished product is greatly reduced, and the logistics cost and storage pressure are reduced. Meanwhile, during installation, the connection and matching process of the first frame assembly and the second frame assembly provides structural support and positioning for the expansion of the filter screen body, so that the filter screen body can be conveniently expanded and filled to form the mounting opening.

Description

[Technical Field] This application belongs to the field of air purification technology, specifically relating to an assembled filter structure. [Background Technology] Air filters are crucial components for ensuring air quality. Existing filter products, such as those used in HVAC or fresh air systems, employ a one-piece fixed structure where the frame and filter body are integrated. While structurally stable in the finished product state, the non-removable frame results in excessively large finished and packaged filter volumes, requiring significant space for transportation and storage, leading to high logistics costs and warehousing pressure. Secondly, foldable filters require hangers at both ends for installation, necessitating manual alignment with mounting tracks on the upper and lower sides of the air duct to unfold the filter. This makes the installation process cumbersome, time-consuming, and reduces operational efficiency. [Utility Model Content] To address the problem of excessively large finished filter sizes caused by the existing integrated fixed structure of the filter frame and filter body, this application provides an assembled filter structure.

[0001] This application is achieved through the following technical solution: An assembled filter structure includes a filter body, a first frame assembly, and a second frame assembly detachably connected to the first frame assembly. The first frame assembly and the second frame assembly are connected and cooperate to allow the filter body to unfold and connect, and to fill the mounting opening formed by the connection of the first frame assembly and the second frame assembly.

[0002] As described above, in an assembled filter structure, the first frame assembly includes a first frame member and a second frame member connected to both ends of the filter body in the stretching direction, and the second frame assembly includes a third frame member and a fourth frame member detachably connected to the first frame member and the second frame member and used to support the unfolding of the filter body.

[0003] As described above, in an assembled filter structure, the filter body is detachably connected to the first frame member and the second frame member.

[0004] In the assembled filter structure described above, the first frame member has a first connecting hole and a second connecting hole at both ends, the second frame member has a third connecting hole and a fourth connecting hole at both ends, the third frame member has a fifth connecting hole and a sixth connecting hole at both ends, and the fourth frame member has a seventh connecting hole and an eighth connecting hole at both ends. Fasteners pass through the first connecting hole and the fifth connecting hole to connect the first frame member and the third frame member; fasteners pass through the second connecting hole and the seventh connecting hole to connect the first frame member and the fourth frame member; fasteners pass through the third connecting hole and the sixth connecting hole to connect the second frame member and the third frame member; and fasteners pass through the fourth connecting hole and the eighth connecting hole to connect the second frame member and the fourth frame member.

[0005] As described above, in an assembled filter structure, the first frame assembly includes a first frame member and a third frame member pivotally connected to the first frame member, and the second frame assembly includes a second frame member and a fourth frame member pivotally connected to the second frame member. The first frame member and the third frame member can be folded and closed relative to each other, and the second frame member and the fourth frame member can also be folded and closed relative to each other.

[0006] As described above, in an assembled filter structure, the first frame member is provided with a first positioning member for adapting to the upper mounting track inside the ventilation duct. The first positioning member is embedded inside the upper mounting track to hold the first frame member on the upper mounting track.

[0007] As described above, in an assembled filter structure, the second frame member is provided with a second positioning member for adapting to the lower mounting track inside the ventilation duct. The second positioning member is embedded inside the lower mounting track to hold the second frame member on the lower mounting track.

[0008] In the assembled filter structure described above, both the first positioning member and the second positioning member include a connecting portion connected to the first frame assembly, and a positioning portion that arches away from the first frame assembly.

[0009] In the assembled filter structure described above, the length of the positioning part is L, the width of the upper mounting track and the width of the lower mounting track are both S, and the height of both are H, wherein SL < H.

[0010] Compared with the prior art, this application has the following advantages: This application discloses an assembled filter structure. By designing the frame as a detachable first frame component and a second frame component, the filter can be disassembled and folded during transportation and storage, significantly reducing the packaging volume of the finished product and lowering logistics costs and storage pressure. Simultaneously, during installation, the connection and cooperation between the first and second frame components provides structured support and positioning for the unfolding of the filter body, allowing it to easily unfold and fill the formed installation opening. [Attached Image Description] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a three-dimensional representation of this application; Figure 2 yes Figure 1 A partially exploded view; Figure 3 This is an exploded view of Embodiment 1 of this application; Figure 4 This is an exploded view of Embodiment 2 of this application; Figure 5 yes Figure 1 Side view; Figure 6 This is a schematic diagram of the folding process of the first border component in Embodiment 2 of this application; Figure 7 This is a schematic diagram of the fully folded first border component in Embodiment 2 of this application; Figure 8 This is a schematic diagram of the track installation in a ventilation duct; Figure 9 yes Figure 8 Side view.

Detailed Implementation Methods

[0012] Please see Figures 1 to 9An assembled filter structure includes a filter body 1, a first frame assembly 2, and a second frame assembly 3 detachably connected to the first frame assembly 2. The first frame assembly 2 and the second frame assembly 3 are connected and cooperated to allow the filter body 1 to unfold and connect, and to fill the mounting opening 4 formed by the connection of the first frame assembly 2 and the second frame assembly 3.

[0013] This application discloses an assembled filter structure. By designing the frame as a detachable first frame component and a second frame component, the filter can be disassembled and folded during transportation and storage, significantly reducing the packaging volume of the finished product and lowering logistics costs and storage pressure. Simultaneously, during installation, the connection and cooperation between the first and second frame components provides structured support and positioning for the unfolding of the filter body, allowing it to easily unfold and fill the formed installation opening.

[0014] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the first frame assembly 2 includes a first frame member 21 and a second frame member 22 connected to both ends of the filter body 1 in the stretching direction, and the second frame assembly 3 includes a third frame member 31 and a fourth frame member 32 detachably connected to the first frame member 21 and the second frame member 22 and used to support the unfolding of the filter body 1.

[0015] In this first embodiment, as Figure 3 As shown, by designing the frame as a separate, assemblable first, second, third, and fourth frame component, the first and second frame components are fixed to both ends of the filter body in the stretching direction via adhesive or connecting structures during assembly. Combined with the detachable third and fourth frame components, the finished filter can be folded during storage and transportation, reducing packaging volume and logistics costs. During installation, after the filter ends are connected to the frame, the filter body can be actively stretched and fixed from a compressed state to an unfolded state, ensuring the flatness of the filter and improving filtration performance.

[0016] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the filter body 1 is detachably connected to the first frame member 21 and the second frame member 22.

[0017] Furthermore, as a preferred embodiment of this solution and not a limitation, the first frame member 21 is provided with a first connecting hole 211 and a second connecting hole 212 at both ends, the second frame member 22 is provided with a third connecting hole 221 and a fourth connecting hole 222 at both ends, the third frame member 31 is provided with a fifth connecting hole 311 and a sixth connecting hole 312 at both ends, and the fourth frame member 32 is provided with a seventh connecting hole 321 and an eighth connecting hole 322 at both ends. Fasteners pass through the first connecting hole 211 and the fifth connecting hole 311 to connect the first frame member 21 and the third frame member 31; fasteners pass through the second connecting hole 212 and the seventh connecting hole 321 to connect the first frame member 21 and the fourth frame member 32; fasteners pass through the third connecting hole 221 and the sixth connecting hole 312 to connect the second frame member 22 and the third frame member 31; and fasteners pass through the fourth connecting hole 222 and the eighth connecting hole 322 to connect the second frame member 22 and the fourth frame member 32.

[0018] In this embodiment, by providing connecting holes at the ends of all four frame members and using fasteners passing through the corresponding holes to achieve four-corner connection, a method with low manufacturing cost, extremely simple structure, yet high connection strength and very stable assembly is provided. Its working principle is that during installation, the end holes of the frame members used to support the unfolding filter are aligned with those of the frame members fixing the filter screen, fasteners are inserted and locked. This process forcibly stretches and fixes the filter screen body, forming a rigid frame that ensures the flatness and wind pressure resistance of the filter screen.

[0019] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the first frame assembly 2 includes a first frame member 21 and a third frame member 31 pivotally connected to the first frame member 21, and the second frame assembly 3 includes a second frame member 22 and a fourth frame member 32 pivotally connected to the second frame member 22. The first frame member 21 and the third frame member 31 can be folded and closed relative to each other, and the second frame member 22 and the fourth frame member 32 can be folded and closed relative to each other.

[0020] In this second embodiment, as Figure 4 As shown, by designing the frame components as two sets of pivotally connected components—that is, the first frame component is pivotally connected to the third frame component, and the second frame component is pivotally connected to the fourth frame component, or the first frame component is pivotally connected to the fourth frame component, and the second frame component is pivotally connected to the third frame component—the installation process is further simplified. Its working principle is that during storage and transportation, these two sets of components are folded and compressed to reduce volume. During installation, workers only need to pivot and unfold them separately to form two L-shaped structures. Then, the free ends of these two L-shaped components are joined and locked. This connection action automatically stretches and expands the filter body fixed to the first and second frame components, forming a stable rectangular frame.

[0021] Furthermore, as a preferred embodiment of this solution and not a limitation, the first frame member 21 is provided with a first positioning member 213 for adapting to the upper mounting track 5 inside the ventilation duct. The first positioning member 213 is embedded inside the upper mounting track 5 to hold the first frame member 21 on the upper mounting track 5.

[0022] In this embodiment, by setting a first positioning component that can be embedded inside the upper mounting track, the force distribution and operational logic of the installation are changed. Since the third and fourth frame components support the filter body, the traditional method of hanging and stretching the filter body is unnecessary, improving installation convenience and stability. The working principle is that the installer can easily embed the first frame component into the upper mounting track using the positioning component. The guide inside the track ensures it is accurately and stably held in place. The third and fourth frame components then support the filter body. This reduces installation difficulty and saves time.

[0023] Furthermore, as a preferred embodiment of this solution and not a limitation, the second frame member 22 is provided with a second positioning member 223 for adapting to the lower mounting track 6 inside the ventilation duct. The second positioning member 223 is embedded inside the lower mounting track 6 to hold the second frame member 22 on the lower mounting track 6.

[0024] In this embodiment, by setting a second positioning component that can be embedded inside the lower mounting track, the force distribution and operational logic of the installation are changed. Since the third and fourth frame components support the filter body, the traditional method of hanging and stretching the filter body is unnecessary, improving installation convenience and stability. The working principle is that the installer can easily embed the second frame component into the lower mounting track using the positioning component. The guide inside the track ensures it is accurately and stably held in place. The third and fourth frame components then support the filter body. This reduces installation difficulty and saves time.

[0025] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, both the first positioning member 213 and the second positioning member 223 include a connecting portion 7 connected to the first frame assembly 2, and a positioning portion 8 that arches away from the first frame assembly 2.

[0026] In this embodiment, when the frame piece is pushed into the mounting track, the positioning part cooperates with the inner side of the mounting track. This design can keep the frame piece inside the track, prevent it from shaking or falling off, and can effectively adapt to the dimensional tolerances inside the track.

[0027] Furthermore, as a preferred embodiment of this solution and not a limitation, the length of the positioning part 8 is L, the width of the upper mounting track 5 and the lower mounting track 6 are both S, and the height of both are H, wherein SL < H.

[0028] In this embodiment, a simple yet extremely robust anti-detachment locking mechanism is achieved by defining a specific relationship between the length of the positioning part, the width of the track opening, and the track height. Its working principle is as follows: during installation, the shorter positioning part is inserted into the wider track opening, allowing for convenient embedding of the positioning part inside the mounting track. This lateral distance difference is designed to be less than the vertical height of the track. Once the positioning part is in place, it is vertically restricted by the track height. To remove it, both the track height and the lateral gap must be overcome simultaneously, effectively preventing the frame from accidentally detaching due to vibration or airflow impact. It can simply be pulled out along the length of the mounting track.

[0029] The working principle of this embodiment is as follows: This application discloses an assembled filter structure. By designing the frame as a detachable first frame component and a second frame component, the filter can be disassembled and folded during transportation and storage, significantly reducing the packaging volume of the finished product and lowering logistics costs and storage pressure. Simultaneously, during installation, the connection and cooperation between the first and second frame components provides structured support and positioning for the unfolding of the filter body, allowing it to easily unfold and fill the formed installation opening.

[0030] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. An assembled filter structure, characterized in that, It includes a filter body (1), a first frame assembly (2), and a second frame assembly (3) detachably connected to the first frame assembly (2). The first frame assembly (2) and the second frame assembly (3) are connected and cooperated to allow the filter body (1) to unfold and connect, and fill the mounting port (4) formed by the connection of the first frame assembly (2) and the second frame assembly (3).

2. The assembled filter structure according to claim 1, characterized in that, The first frame assembly (2) includes a first frame piece (21) and a second frame piece (22) connected to both ends of the filter body (1) in the stretching direction. The second frame assembly (3) includes a third frame piece (31) and a fourth frame piece (32) detachably connected to the first frame piece (21) and the second frame piece (22) and used to support the unfolding of the filter body (1).

3. The assembled filter structure according to claim 2, characterized in that, The filter body (1) is detachably connected to the first frame piece (21) and the second frame piece (22).

4. The assembled filter structure according to claim 2, characterized in that, The first frame member (21) has a first connecting hole (211) and a second connecting hole (212) at both ends, the second frame member (22) has a third connecting hole (221) and a fourth connecting hole (222) at both ends, the third frame member (31) has a fifth connecting hole (311) and a sixth connecting hole (312) at both ends, and the fourth frame member (32) has a seventh connecting hole (321) and an eighth connecting hole (322) at both ends. Fasteners pass through the first connecting hole (211) and the fifth connecting hole (311) to connect the components. The first frame member (21) and the third frame member (31) are described; fasteners pass through the second connecting hole (212) and the seventh connecting hole (321) to connect the first frame member (21) and the fourth frame member (32); fasteners pass through the third connecting hole (221) and the sixth connecting hole (312) to connect the second frame member (22) and the third frame member (31); fasteners pass through the fourth connecting hole (222) and the eighth connecting hole (322) to connect the second frame member (22) and the fourth frame member (32).

5. The assembled filter structure according to claim 1, characterized in that, The first frame assembly (2) includes a first frame piece (21) and a third frame piece (31) pivotally connected to the first frame piece (21). The second frame assembly (3) includes a second frame piece (22) and a fourth frame piece (32) pivotally connected to the second frame piece (22). The first frame piece (21) and the third frame piece (31) can be folded and closed relative to each other. The second frame piece (22) and the fourth frame piece (32) can be folded and closed relative to each other.

6. The assembled filter structure according to claim 2, characterized in that, The first frame member (21) is provided with a first positioning member (213) for adapting to the upper mounting rail (5) inside the ventilation duct. The first positioning member (213) is embedded inside the upper mounting rail (5) to hold the first frame member (21) on the upper mounting rail (5).

7. The assembled filter structure according to claim 6, characterized in that, The second frame member (22) is provided with a second positioning member (223) for adapting to the lower mounting rail (6) inside the ventilation duct. The second positioning member (223) is embedded inside the lower mounting rail (6) to hold the second frame member (22) on the lower mounting rail (6).

8. The assembled filter structure according to claim 7, characterized in that, Both the first positioning member (213) and the second positioning member (223) include a connecting portion (7) connected to the first frame assembly (2) and a positioning portion (8) that arches away from the first frame assembly (2).

9. The assembled filter structure according to claim 8, characterized in that, The length of the positioning part (8) is L, the width of the upper mounting track (5) and the lower mounting track (6) are both S, and the height is both H, where SL < H.

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