Outer frame of a high efficiency filter

Abstract

The utility model discloses a kind of high-efficiency filter outer frame, for by the frame structure of two side plates of relative arrangement, multiple edge strips installed between two side plates and two baffle plates detachably connected on side plate, the length direction both ends of each edge strip are respectively equipped with positioning part and clamping hole;Each baffle plate includes square tube and the support plate of being equipped with in square tube width direction one side, the length direction both ends of square tube are respectively equipped with mounting hole, the both ends of support plate are respectively equipped with clamping hole;Correspondingly, the inner side of two side plates opposite, respectively equipped with with positioning part matched cooperation part, with clamping hole clamping buckle, with mounting hole matched connection boss, and with clamping hole matched clamping block.The utility model is positioned and connected structure between edge strip, baffle plate and side plate, not only can realize the quick positioning and fixed of each component connecting position, improve assembly efficiency, and ensure the stability of outer frame overall structure after assembly.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, specifically to a high-efficiency filter frame. Background Technology

[0002] In air purification systems, high-efficiency particulate matter (HEPA) filters play a crucial role, effectively intercepting fine particulate matter in the air and improving air quality. The HEPA filter frame, as the supporting component, directly impacts the filter's installation and performance due to its structural rationality and stability. Existing filter frames have some shortcomings in structural design and component connections, such as insufficiently secure component installation and inadequate overall structural strength, affecting the filter's performance and lifespan. Summary of the Invention

[0003] To overcome the above-mentioned defects, this utility model provides a high-efficiency filter frame to achieve rapid positioning and stable connection between the components.

[0004] The technical solution adopted by this utility model to solve its technical problem is to provide a high-efficiency filter outer frame, which is a frame structure composed of two oppositely arranged side plates, multiple edge strips installed between the two side plates, and two baffles detachably connected to the side plates. Each edge strip is provided with a positioning part and a locking hole at both ends in the length direction.

[0005] Each of the baffles includes a square tube and a support plate disposed on one side of the square tube in the width direction. The two ends of the square tube in the length direction are respectively provided with mounting holes, and the two ends of the support plate are respectively provided with snap-fit ​​holes.

[0006] Correspondingly, on the inner surfaces of the two side plates facing each other, there are respectively a mating part that matches the positioning part, a buckle that engages with the card hole, a connecting protrusion that matches the mounting hole, and a card block that fits with the card hole.

[0007] As a further improvement of this utility model, the longitudinal section of the edge strip is V-shaped and the V-shape is obtuse, which includes a base and two extension plates that branch out from the base; the positioning part includes a cylindrical positioning hole provided on the base and extending inward along its length direction, and a positioning groove that communicates with the positioning hole and vertically penetrates the base on the side away from the V-shaped opening.

[0008] The mating parts are provided in multiple ways. The multiple mating parts are respectively located on both sides of the width direction of the side plate and are evenly spaced and staggered. Each mating part includes a positioning post protruding from the inner side of the side plate and adapted to the positioning hole, and a positioning plate extending radially along the positioning post and capable of being inserted into the positioning groove.

[0009] As a further improvement of this utility model, each end of the edge strip is provided with a connecting piece, which is horizontally arranged and its two ends are respectively connected to the ends of the two extension plates. Each connecting piece has two square locking holes, and the two locking holes are symmetrically arranged about the center line of the base.

[0010] The side plate is provided with abutment piece corresponding to each of the mating parts. The abutment piece is provided with two buckles on the side facing the mating part that are adapted to the two buckle holes. The longitudinal cross section of the buckle is a right triangle.

[0011] As a further improvement of this utility model, the edge strip also includes two limiting plates disposed on the side opposite to the V-shaped opening. The two limiting plates are integrally connected to both sides of the two extension plates and are perpendicular to the extension plates.

[0012] The side plate is provided with a plurality of V-shaped grooves arranged sequentially and connected to each other with their openings facing the side of the connecting protrusion. The ends of the two inner sidewalls of the V-shaped groove are respectively connected to the two ends of the abutment piece facing the side of its opening, and the ends of the two outer sidewalls are respectively connected to the positioning plate facing the side of its opening. The connecting piece is provided at the bottom of the V-shaped groove.

[0013] The outer side of the limiting plate abuts against the inner side of the corresponding V-shaped groove sidewall.

[0014] As a further improvement of this utility model, the support plate has an L-shaped structure, including a horizontal plate integrally connected with the square tube and a vertical plate connected with the horizontal plate;

[0015] The baffle is provided with connecting parts at both ends along its length. The connecting parts are located above the horizontal plate and one end is connected to the vertical plate. The connecting parts have snap-fit ​​holes.

[0016] The side plate has a notch at the end near the connecting protrusion to avoid the support plate.

[0017] As a further improvement of this utility model, the square tube has multiple cavities on the side facing away from the support plate, and each cavity is provided with a cross-shaped reinforcing rib.

[0018] The top of the horizontal plate is provided with triangular ribs spaced apart along its length.

[0019] As a further improvement of this utility model, an arc-shaped reinforcing rib is provided along the length direction of the base facing its opening.

[0020] On the upper surface of the two extension plates, two vertical ribs are symmetrically distributed about the centerline of the base, and a number of horizontal ribs are spaced apart along the length of the edge strip.

[0021] As a further improvement of this utility model, a frame is provided on the outer side of the side plate facing the connecting protrusion, and multiple support ribs are provided at intervals along the length of the frame.

[0022] As a further improvement of this utility model, the side plate strips and baffles are all made of ABS material by injection molding process.

[0023] The beneficial effects of this utility model are:

[0024] 1. By setting positioning and connection structures between the edge strips, baffles and side panels, the assembly efficiency of the outer frame is effectively improved while ensuring that the overall structure of the outer frame has sufficient stability.

[0025] 2. By optimizing the shape and reinforcing ribs of each component, the structural strength of each component is improved, thereby extending the service life of the outer frame and reducing maintenance costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is an exploded structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the inner side surface structure of the side plate of this utility model;

[0029] Figure 4 This utility model Figure 1 Enlarged view of point A;

[0030] Figure 5 This utility model Figure 1 Enlarged view of point B;

[0031] Figure 6 This utility model Figure 1 Enlarged diagram of point C.

[0032] Referring to the accompanying drawings, the following explanations are provided:

[0033] 1. Side plate; 11. Mating part; 111. Positioning post; 112. Positioning plate; 12. Buckle; 13. Connecting protrusion; 14. Locking block; 15. Abutting piece; 16. V-groove; 161. Inner wall; 162. Outer wall; 17. Notch; 18. Frame; 181. Supporting rib; 2. Edge strip; 21. Positioning part; 211. Positioning hole; 212. Positioning groove; 22. Locking hole; 23. Base; 231. Arc-shaped reinforcing rib; 24. Extension plate; 241. Vertical rib; 242. Horizontal rib; 25. Connecting piece; 26. Limiting plate; 3. Baffle; 31. Square tube; 311. Mounting hole; 312. Cavity; 313. Cross-shaped reinforcing rib; 32. Support plate; 321. Locking hole; 322. Horizontal plate; 323. Vertical plate; 33. Connecting part; 34. Triangular rib. Detailed Implementation

[0034] The preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] See Figures 1 to 6 This utility model provides an embodiment of a high-efficiency filter outer frame. The outer frame is a frame structure, consisting of two opposing side plates 1, multiple edge strips 2 installed between the two side plates 1, and two baffles 3 detachably connected to the side plates 1. The side plates 1, edge strips 2, and baffles 3 are all made of ABS material using injection molding to meet the structural strength requirements of the side plates 1, edge strips 2, and baffles 3 during normal use, while also being environmentally friendly and conducive to waste disposal. Figure 1 For reference, two side plates are positioned opposite each other on the left and right sides of the side strip. Multiple side strips are divided into upper and lower rows, arranged in an orderly, staggered pattern. Two baffles 3 are positioned on the front and rear sides of the upper row of side strips. This staggered arrangement of the side strips is a conventional technique. It allows for precise positioning of the filter media, creating an upward-facing V-shaped structure. This structure helps increase the contact area between the filter media and air, optimizing the airflow path and thus effectively improving the filtration effect.

[0036] Specifically, in this embodiment, each edge strip 2 is provided with a positioning part 21 and a locking hole 22 at both ends of its length direction; each baffle 3 includes a square tube 31 and a support plate 32 provided on one side of the square tube 31 in the width direction. The two ends of the square tube 31 in the length direction are provided with mounting holes 311, and the two ends of the support plate 32 are provided with locking holes 321. Correspondingly, on the inner surfaces of the two side plates 1 facing each other, there are respectively a mating part 11 matching the positioning part 21, a buckle 12 engaging with the locking hole 22, a connecting protrusion 13 adapting to the mounting hole 311, and a locking block 14 fitting with the locking hole 321. This structural design not only enables rapid and accurate positioning of the edge strip, baffle, and side plate connection positions, but also forms a stable and reliable connection relationship, effectively improving the assembly efficiency of the outer frame while ensuring sufficient stability of the overall outer frame structure.

[0037] Furthermore, the longitudinal section of the edge strip 2 has an obtuse V-shaped structure, which includes a base 23 and two extension plates 24 extending from the base 23. The positioning part 21 includes a cylindrical positioning hole 211 provided in the base 23 and extending inward along its length direction, and a positioning groove 212 connected to the positioning hole 211 and vertically penetrating the base 23 on the side opposite to the V-shaped opening.

[0038] Understandably, the mating parts 11 on the side panel 1 are correspondingly arranged with the edge strip 2 to achieve positioning between the two ends of the edge strip and the side panel. Among them, multiple mating parts 11 are respectively provided at the upper and lower ends of the inner side of the side panel 1, and are arranged in a uniformly spaced and interlaced manner, which can meet the requirements of the interlaced arrangement of the edge strip, thereby ensuring that the upper and lower rows of edge strips are interlaced.

[0039] Furthermore, each mating part 11 includes a positioning post 111 protruding from the inner side of the side plate 1 and adapted to the positioning hole 211, and a positioning plate 112 extending radially along the positioning post 111 and capable of being inserted into the positioning groove 212. During assembly, the positioning post 111 of the side plate 1 is inserted into the positioning hole 211 of the edge strip 2 to achieve initial positioning of the edge strip 2; at the same time, the positioning plate 112 of the side plate is inserted into the positioning groove 212 of the edge strip, which can effectively prevent the edge strip from swinging in the horizontal direction, thereby achieving a fast and stable positioning effect for the edge strip.

[0040] Furthermore, the edge strip 2 is equipped with connecting pieces 25 at both ends, which are horizontally positioned and integrally connected to the top of the two extension plates 24 at both ends. Each connecting piece 25 has two square locking holes 22, which are symmetrically distributed about the center line of the base 23. Each mating part 11 on the side plate 1 is provided with an abutment piece 15, which is parallel to the connecting piece 25. Two latches 12 are provided on the side of the abutment piece 15 facing the mating part 11. The latches 12 are adapted to the locking holes 22 on the connecting piece 25, and the longitudinal section of the latches 12 is a right-angled triangle. The snap-fit ​​between the latches and the locking holes ensures precise engagement of the latches 12 and the locking holes 22 during assembly, achieving a reliable connection between the edge strip 2 and the side plate 1. The inclined surface of the right-angled triangle latches 12 effectively guides the locking holes 22 to smoothly engage with the latches 12, improving the convenience and accuracy of assembly, as well as the stability of the connection.

[0041] The side strip 2 is further provided with two limiting plates 26, which are positioned opposite to the V-shaped opening and integrally connected to both sides of the two extension plates 24, perpendicular to the extension plates 24. The side plate 1 has multiple V-shaped grooves 16 arranged sequentially, with their openings facing the connecting protrusion 13. The ends of the two inner sidewalls 161 of the V-shaped groove 16 are connected to the ends of the abutment pieces 15 facing their openings, and the ends of the two outer sidewalls 162 are connected to the positioning plates 112 facing their openings. A connecting piece 25 is provided at the bottom of the V-shaped groove 16. When the side strip 2 is assembled with the side plate 1, the outer surfaces of the limiting plates 26 abut against the inner surfaces of the corresponding V-shaped groove 16 sidewalls. Through the interaction between the limiting plates 26 and the V-shaped groove 16 sidewalls, the stability of the connection between the side strip and the side plate is further enhanced, effectively improving the overall strength of the assembled frame and ensuring that it can withstand corresponding external forces during use, maintaining the integrity and reliability of the structure. Simultaneously, the V-shaped grooves 16 facilitate the installation and fixing of the filter media. In addition, trapezoidal notches are provided between adjacent V-shaped grooves 16 to facilitate air circulation.

[0042] Furthermore, the support plate 32 of the baffle has an L-shaped structure, including a horizontal plate 322 integrally connected to the square tube 31, and a vertical plate 323 connected to the horizontal plate 322; the two ends of the baffle 3 along its length are provided with connecting parts 33, which are plate-shaped and located above the horizontal plate 322, with one end connected to the vertical plate 323; the connecting parts 33 are provided with snap-fit ​​holes 321. To facilitate the guidance and assembly of the side plate, the side plate 1 is provided with a notch 17 at the end near the connecting protrusion 13 to avoid the support plate 32, thereby realizing the quick positioning and stable connection between the baffle and the side plate.

[0043] Understandably, the abutment pieces 15 located at the front and rear ends of the side plate are half the size of the middle abutment piece, with the remaining space used to set the connecting protrusions 13. The connecting protrusions 13 corresponding to the mounting holes 311 on the baffle are set on the bottom surface of the outermost abutment piece. This structural design allows the number of V-grooves 16 to be adjusted according to production needs, thereby expanding the outer frame to meet the production requirements of products of different specifications and sizes, and improving the flexibility and adaptability of production.

[0044] Furthermore, the base 23 of the edge strip, facing its opening, is provided with an arc-shaped reinforcing rib 231 along its length. This ensures the structural strength of the V-shaped junction of the edge strip, thereby guaranteeing the ability of the longer edge strip to resist external deformation and ensuring the stability and integrity of the edge strip structure. On the upper surface of the two extension plates 24, two vertical ribs 241 are symmetrically distributed about the centerline of the base 23, providing longitudinal support and enhancing its bending resistance. In addition, multiple horizontal ribs 242 are spaced apart along the length of the edge strip 2, further improving the overall strength and stability of the edge strip.

[0045] Furthermore, the square tube 31 has multiple cavities 312 on the side facing away from the support plate 32, and each cavity 312 is provided with a cross-shaped reinforcing rib 313; the top of the horizontal plate 322 is provided with triangular ribs 34 at intervals along its length, thereby enhancing the baffle's resistance to deformation and damage, and ensuring that the baffle maintains stable performance during long-term use.

[0046] Furthermore, a frame 18 is provided on the outer side of the side plate 1 facing the connecting protrusion 13, and multiple support ribs 181 are provided at intervals along the length of the frame 18 to improve the rigidity of the upper part of the side plate. Since the lower end of the side plate is separated by a trapezoidal notch, the stress at the lower end is reduced, thereby ensuring the overall strength of the side plate.

[0047] In summary, the high-efficiency filter frame provided by this utility model, through the positioning and connection structure set between the edge strips, baffles, and side plates, not only enables rapid positioning and fixing of the connection positions of each component, greatly improving assembly efficiency, but also ensures the overall stability of the frame structure after assembly. Furthermore, by optimizing the shape and reinforcing ribs of each component, the structural strength of each component is improved, thereby extending the service life of the frame and reducing maintenance costs.

[0048] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A high efficiency filter frame, which is a frame structure composed of two oppositely arranged side plates (1), a plurality of edge strips (2) installed between the two side plates (1), and two baffle plates (3) detachably connected to the side plates (1), characterized in that: Each of the edge strips (2) has a positioning part (21) and a locking hole (22) at both ends in the length direction; Each of the baffles (3) includes a square tube (31) and a support plate (32) disposed on one side of the square tube (31) in the width direction. The two ends of the square tube (31) in the length direction are respectively provided with mounting holes (311), and the two ends of the support plate (32) are respectively provided with snap-fit ​​holes (321). Correspondingly, on the inner sides of the two side plates (1) facing each other, there are respectively a mating part (11) that matches the positioning part (21), a buckle (12) that engages with the card hole (22), a connecting protrusion (13) that matches the mounting hole (311), and a card block (14) that fits with the card hole (321).

2. The outer frame for a high efficiency filter of claim 1, wherein: The longitudinal section of the edge strip (2) is V-shaped with an obtuse angle. It includes a base (23) and two extension plates (24) extending from the base (23). The positioning part (21) includes a cylindrical positioning hole (211) located on the base (23) and extending inward along its length, and a positioning groove (212) communicating with the positioning hole (211) and vertically penetrating the base (23) on the side opposite to the V-shaped opening. The mating part (11) is provided in multiple ways. The multiple mating parts (11) are respectively provided on both sides of the width direction of the side plate (1) and are evenly spaced and staggered. Each mating part (11) includes a positioning post (111) protruding from the inner side of the side plate (1) and adapted to the positioning hole (211), and a positioning plate (112) extending radially along the positioning post (111) and capable of being inserted into the positioning groove (212).

3. The outer frame for a high efficiency filter of claim 2, wherein: The two ends of the edge strip (2) are respectively provided with connecting pieces (25). The connecting pieces (25) are horizontally arranged, and their two ends are respectively connected to the ends of the two extension plates (24). Each connecting piece (25) has two square holes (22), and the two holes (22) are symmetrically arranged about the center line of the base (23). The side plate (1) is provided with abutting piece (15) corresponding to each of the mating parts (11). The abutting piece (15) has two buckles (12) on the side facing the mating part (11) that are adapted to the two buckle holes (22). The longitudinal section of the buckle (12) is a right triangle.

4. The outer frame for a high efficiency filter of claim 3, wherein: The edge strip (2) also includes two limiting plates (26) disposed on the side opposite to the V-shaped opening. The two limiting plates (26) are integrally connected to the two sides of the two extension plates (24) and are perpendicular to the extension plates (24). The side plate (1) is provided with a plurality of V-shaped grooves (16) arranged sequentially and with their openings facing the side of the connecting protrusion (13). The ends of the two inner sidewalls (161) of the V-shaped groove (16) are respectively connected to the two ends of the abutment piece (15) facing the side of its opening, and the ends of the two outer sidewalls (162) are respectively connected to the positioning plate (112) facing the side of its opening. The connecting piece (25) is provided at the bottom of the V-shaped groove (16). The outer side of the limiting plate (26) abuts against the inner side of the corresponding V-groove (16) sidewall.

5. The outer frame for a high efficiency filter of claim 4, wherein: The support plate (32) has an L-shaped structure, including a horizontal plate (322) integrally connected to the square tube (31) and a vertical plate (323) connected to the horizontal plate (322). The baffle (3) has connecting parts (33) at both ends along its length. The connecting parts (33) are located above the horizontal plate (322) and one end is connected to the vertical plate (323). The connecting parts (33) have snap-fit ​​holes (321). The side plate (1) has a notch (17) at one end near the connecting protrusion (13) to avoid the support plate (32).

6. The outer frame for a high efficiency filter of claim 5 wherein: The square tube (31) has multiple cavities (312) on the side facing away from the support plate (32), and each cavity (312) is provided with a cross-shaped reinforcing rib (313). The top of the horizontal plate (322) is provided with triangular ribs (34) spaced apart along its length.

7. The outer frame for a high efficiency filter of claim 6, wherein: The base (23) is provided with an arc-shaped reinforcing rib (231) along its length on the side facing its opening. On the upper surface of the two extension plates (24), two vertical ribs (241) are symmetrically distributed with the center line of the base (23) as the axis of symmetry, and a number of horizontal ribs (242) are spaced apart along the length of the edge strip (2).

8. The outer frame for a high efficiency filter of claim 1 wherein: The side plate (1) has a frame (18) on the outer side facing the connecting protrusion (13), and a plurality of support ribs (181) are arranged at intervals along its length inside the frame (18).

9. The outer frame for a high efficiency filter of claim 1 wherein: The side panel (1), edge strip (2), and baffle (3) are all made of ABS material by injection molding process.

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