Air filter screen

Abstract

The utility model discloses an air filter screen, set up the metal screen in the frame body front side, the rear side flips the hinge limiting frame, and the filter core can be dismantled and placed between both, when installing the filter core, only need to place the filter core on the metal screen, then flip the limiting frame and make it close, can complete the installation of filter core, when needing to replace the filter core, reverse operation, open the limiting frame, and can easily take out the filter core, compared with the traditional buckle type etc.

Description

Technical Field

[0001] This utility model relates to an air filter. Background Technology

[0002] In various filtration systems, air filters generally consist of a filter frame and a filter element housed within the frame, with the filter frame structure being a crucial component ensuring effective filtration. Existing filter frames present numerous problems with the installation and securing of filter elements. Traditional snap-on filter element fixing methods require technicians to disassemble numerous clips one by one during after-sales maintenance, a highly tedious process that not only consumes a significant amount of time but also drastically reduces maintenance efficiency. For example, in the maintenance of filters in some large ventilation or air conditioning systems, technicians may need to spend several hours disassembling and reinstalling the filter element, impacting the equipment's uptime. Utility Model Content

[0003] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, the present invention proposes an air filter with a reusable outer frame and an easy-to-replace filter element.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An air filter includes a frame body and a filter element disposed within the frame body. A metal mesh plate is provided on the front side of the frame body, and a limiting frame is hinged to the rear side. The filter element can be detachably placed between the metal mesh plate and the limiting frame, and the limiting frame can limit and fix the filter element when it is closed.

[0006] In some embodiments, the filter element is a paper filter element or a non-woven fabric filter element.

[0007] In some embodiments, support bars are provided on the left and right inner sides of the frame body, and slots are provided on the rear side of the support bars. The limiting frame includes a swing pressure bar hinged in the slot. The left and right ends of the filter element are located in the slot, and the filter element is clamped and pressed by the swing pressure bar.

[0008] In some embodiments, a plurality of connecting strips are connected vertically and horizontally between the two swing pressure strips.

[0009] In some embodiments, the connecting strip is made of fabric tape.

[0010] In some embodiments, a pull cord is provided at the end of the swing bar away from the hinge end.

[0011] In some embodiments, grooves are provided on both the upper and lower inner sides of the frame body, and the upper and lower ends of the filter element are embedded in the grooves.

[0012] In some embodiments, a cotton pad is also provided in the groove.

[0013] In some embodiments, a cotton strip is attached to the end face of the swing pressure strip, and the connecting strip is fixed to the swing pressure strip by the cotton strip.

[0014] In summary, compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This patent features a metal mesh plate on the front of the frame body and a hinged limiting bracket on the rear, with the filter element detachably placed between the two. To install the filter element, simply place it on the metal mesh plate and then flip the limiting bracket to close it. When replacing the filter element, reverse the process, open the limiting bracket, and the filter element can be easily removed. Compared to traditional snap-on fixing methods, this process is simple and quick, greatly improving the efficiency of filter element installation and replacement, and reducing maintenance time and labor costs.

[0016] 2. The reusable design of the frame eliminates the need for complete replacement; only the internal filter elements need to be replaced periodically. This design not only reduces the consumption of outer frame materials and the amount of waste generated, thus embodying the concept of green environmental protection, but also significantly reduces replacement costs over long-term use, greatly saving on consumable expenses compared to traditional integrated filter elements.

[0017] 3. After the limiting frame flips and closes, it can firmly limit and fix the filter element between the metal mesh plate and the limiting frame. During the operation of the equipment, no matter how the airflow impacts, the filter element can maintain a stable position and will not be displaced, thus ensuring the stability and continuity of the filtration effect. This stable limiting and fixing method helps to extend the service life of the filter element and improve the reliability of the entire filtration system. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is one of the three-dimensional schematic diagrams of the limiting frame after it is closed according to this utility model;

[0020] Figure 2 This is the second three-dimensional schematic diagram of the limiting frame after it is closed.

[0021] Figure 3This is a three-dimensional schematic diagram of the limiting frame of this utility model after it has been opened;

[0022] Figure 4 This is an exploded view of the present invention;

[0023] Figure 5 This is a front view schematic diagram of the limiting frame of this utility model after it is closed;

[0024] Figure 6 This utility model Figure 5 Schematic diagram of section AA;

[0025] Figure 7 This utility model Figure 6 Enlarged diagram of point A. Detailed Implementation

[0026] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of this utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0027] like Figures 1 to 7 The air filter shown includes a frame body 1 and a filter element 2 disposed in the frame body 1. A metal mesh plate 3 is provided on the front side of the frame body 1, and a limiting frame 4 is hinged to the rear side. The filter element 2 can be detachably placed between the metal mesh plate 3 and the limiting frame 4, and the limiting frame 4 can limit and fix the filter element 2 when it is flipped closed.

[0028] According to the above structure, a metal mesh plate 3 is set on the front side of the frame body 1, and a hinged limiting frame 4 is flipped on the rear side. The filter element 2 can be detachably placed between the two. When installing the filter element 2, simply place the filter element 2 on the metal mesh plate 3, and then flip the limiting frame 4 to close it to complete the installation of the filter element 2. When the filter element 2 needs to be replaced, reverse the operation, open the limiting frame 4, and the filter element 2 can be easily taken out. Compared with traditional snap-on and other fixing methods, this process is simple and quick to operate, greatly improving the efficiency of filter element installation and replacement, and reducing maintenance time and labor costs.

[0029] The reusable design of the frame body 1 eliminates the need for complete replacement; only the internal filter element 2 needs to be replaced periodically. This design not only reduces the consumption of outer frame materials and the amount of waste generated, thus practicing the concept of green environmental protection, but also significantly reduces replacement costs over long-term use, greatly saving on consumable expenses compared to traditional integrated filter elements.

[0030] After the limiting frame flips and closes, it can firmly limit and fix the filter element between the metal mesh plate and the limiting frame. During the operation of the equipment, no matter how the airflow impacts, the filter element can maintain a stable position and will not be displaced, thus ensuring the stability and continuity of the filtration effect. This stable limiting and fixing method helps to extend the service life of the filter element and improve the reliability of the entire filtration system.

[0031] In this patent, the material of the filter element 2 is preferably a paper filter element or a non-woven fabric filter element.

[0032] Furthermore, support bars 31 are provided on both the left and right inner sides of the frame body 1, and slots 32 are provided on the rear side of the support bars 31. The limiting frame 4 includes a swing pressure bar 33 hinged in the slot 32. The left and right ends of the filter element 2 are located in the slot 32, and the filter element 2 is clamped and pressed by the swing pressure bar 33.

[0033] Cut the paper filter element or non-woven filter element into a shape that matches the internal dimensions of the frame body so that it can be placed precisely between the metal mesh plate 3 and the limiting frame 4; when installing the filter element 2, put the left and right ends of the filter element 2 into the slot 32, and then rotate the swing pressure strip 33 to clamp and press the left and right ends of the filter element 2 tightly.

[0034] Thus, the support bars 31 on the left and right inner sides of the frame body 1 and the slot 32 on the rear side provide a stable placement space for the left and right ends of the filter element 2. The swing pressure bar 33 is hinged in the slot 32, which can clamp and press the filter element 2, further enhancing the stability of the filter element 2 after installation, effectively preventing the filter element 2 from shifting in the left and right direction during use, and ensuring the filtration effect. In addition, the cooperative design of the support bars 31 and the swing pressure bar 33 makes the filter element 2 easier to install and remove, improves the efficiency of filter element replacement, reduces maintenance costs, and this stable installation method also extends the service life of the filter element.

[0035] Several connecting strips 41 are connected vertically between the two swing pressure strips 33. The number of connecting strips can be reasonably set according to the length of the swing pressure strips 33, and is generally 3-5.

[0036] Furthermore, the connecting strip 41 is made of fabric tape. A fabric tape with a certain strength and flexibility is selected as the connecting strip 41. The fabric tape is cut to a suitable length, and then the two ends of the fabric tape are fixed to the two swing pressure strips respectively by means of pasting or other methods.

[0037] By using a fabric material, it is lightweight and will not increase the overall weight of the limit bracket 4. It is also low in cost and easy to replace.

[0038] Furthermore, a cotton strip is attached to the end face of the swing pressure strip 33, and the connecting strip 41 is fixed to the swing pressure strip 33 by the cotton strip.

[0039] First, apply an appropriate amount of glue to the end face of the swing pressure strip 33. Then, attach the connecting strip 41. Finally, attach the cotton tape flat to the end face of the swing pressure strip 33 and fix both ends of the connecting strip 41 to the two swing pressure strips 33 using the cotton tape.

[0040] See Figure 1 , Figure 3 As shown, a pull rope 61 is provided at the end of the swing pressure bar 33 away from the hinge end. The pull rope 61 is glued to the swing pressure bar 33, which makes it convenient for the operator to pull the swing pressure bar 33, making the opening and closing operation of the limit frame 4 more effortless and convenient.

[0041] In this utility model, grooves 71 are provided on both the upper and lower inner sides of the frame body 1, and the upper and lower ends of the filter element 2 are embedded in the grooves 71.

[0042] When installing filter element 2, the upper and lower ends of filter element 2 are respectively embedded into the corresponding grooves 71, and then fixed with the slots 32 on the left and right sides and the swing pressure strips 33. This achieves all-round positioning of filter element 2, further preventing the filter element from shifting in the vertical direction during use, and making the filter element installation more stable.

[0043] A cotton pad is also provided in the groove 71. The cotton pad in the groove 71 has a buffering effect, which can prevent the upper and lower ends of the filter element 2 from directly and rigidly contacting the inner wall of the groove 71, reducing the wear of the filter element 2. At the same time, the cotton pad can also enhance the sealing between the filter element 2 and the groove 71, preventing unfiltered fluid from flowing out from the gaps and improving the filtration efficiency.

[0044] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air filter, comprising a frame body (1) and a filter element (2) disposed within the frame body (1), characterized in that: A metal mesh plate (3) is provided on the front side of the frame body (1), and a limiting frame (4) is hinged to the rear side. The filter element (2) can be detachably placed between the metal mesh plate (3) and the limiting frame (4), and the limiting frame (4) can limit and fix the filter element (2) when it is closed.

2. The air filter according to claim 1, characterized in that: The filter element (2) is a paper filter element or a non-woven fabric filter element.

3. The air filter according to claim 2, characterized in that: Support bars (31) are provided on the left and right inner sides of the frame body (1). A slot (32) is provided on the rear side of the support bar (31). The limiting frame (4) includes a swing pressure bar (33) hinged in the slot (32). The left and right ends of the filter element (2) are located in the slot (32), and the filter element (2) is clamped and pressed by the swing pressure bar (33).

4. The air filter according to claim 3, characterized in that: Several connecting strips (41) are connected vertically and vertically between the two swing pressure strips (33).

5. The air filter according to claim 4, characterized in that: The connecting strip (41) is made of cloth tape.

6. The air filter according to claim 3, characterized in that: A pull rope (61) is provided at the end of the swing pressure bar (33) away from the hinge end.

7. The air filter according to claim 2, characterized in that: The frame body (1) has grooves (71) on both the upper and lower inner sides, and the filter element (2) is embedded in the grooves (71) at both the upper and lower ends.

8. The air filter according to claim 7, characterized in that: A cotton pad is also provided in the groove (71).

9. The air filter according to claim 5, characterized in that: A cotton strip is pasted on the end face of the swing pressure strip (33), and the connecting strip (41) is fixed to the swing pressure strip (33) by the cotton strip.

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