Air filter element structure

Abstract

The utility model relates to air filter element equipment, in particular to an air filter element structure, which comprises a cylindrical filter element main body and a plurality of filter elements, the connecting strip is arranged at the joint of the filter element main body and is used for fixing the filter element main body; the clamping groove is formed in the connecting strip; and the buckle is arranged on the filter element main body in a sleeving manner, is clamped in the clamping groove and is used for fixing the filter element main body and the connecting strip and uniformly separating the filter element main body. According to the filter element, the filter element body is fixed through the connecting strips, the buckles are clamped into the clamping grooves in the connecting strips, and therefore the buckles can fix the connecting strips and the filter element body, wrinkles on the filter element body are evenly separated, and the filter element is simple in structure, convenient to use, efficient and capable of saving labor.

Description

Technical Field

[0001] This application relates to air filter devices, and more particularly to an air filter structure. Background Technology

[0002] An air filter is a type of filter, also known as an air cartridge, air purifier, or filter element. It is mainly used for air filtration in engineering vehicles, automobiles, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms. The filter body of an air filter is mainly made of filter paper folded into a cylindrical shape, and then fixed with buckles, such as straps, on the outside of the filter body. These buckles not only need to fix the filter body to prevent it from breaking open, but also need to evenly separate the folds on the filter body. For example, the device described in utility model patent CN212632133U can fix and evenly separate the filter body, but it is easy to drift on the filter body during use. Therefore, multiple buckles on the filter body can easily pile up in one place, making the filter body unevenly fixed. To solve this problem, it is often necessary to install fixing components on the filter body to fix the device to the filter body. However, this limits the device's ability to evenly separate the folds of the filter body, making it unable to evenly separate the folds of each part of the filter body. Based on this, the inventor has developed a new air filter structure. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this application provides an air filter structure that uses a connecting strip to fix the filter body and snaps into the slots on the connecting strip, so that the snaps can fix the connecting strip and the filter body and evenly separate the wrinkles on the filter body. The structure is simple, easy to use, efficient and labor-saving.

[0004] This application provides an air filter structure, which adopts the following technical solution:

[0005] An air filter structure includes:

[0006] The filter element body is cylindrical, with multiple pleats uniformly formed along the axial direction on the outer surface.

[0007] Connecting strips are located at the connection points of the filter element body and are used to fix the filter element body.

[0008] The card slot is located on the connecting strip;

[0009] The buckle is fitted onto the filter element body and snaps into the slot to fix the filter element body and the connecting strip, and to evenly separate the filter element body.

[0010] Preferably, the cross-section of the connecting strip is V-shaped, and the inner wall of the connecting strip is fixed to the filter element body.

[0011] Preferably, there are multiple card slots, and each card slot is provided with a buckle.

[0012] Preferably, the plurality of slots are evenly distributed on the connecting strip.

[0013] Preferably, the buckle includes a separating ring and a fixing ring. The separating ring has a number of separating protrusions inside that are the same as the number of pleated grooves on the filter element body. Each of the separating protrusions is disposed in a pleated groove of the filter element body. The separating ring is snapped into a slot. The fixing ring is disposed on the outer ring of the separating ring and is used to fix the separating ring.

[0014] Preferably, the separating ring has skirt portions at both ends in the axial direction, and the skirt portions are located on the side of the separating ring away from the filter element body.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This application uses a connecting strip to fix the filter element body and snaps into the slots on the connecting strip, so that the snaps can fix the connecting strip and the filter element body and evenly separate the wrinkles on the filter element body. The structure is simple, easy to use, efficient and labor-saving.

[0017] 2. This product uses multiple clips on the connecting strip to better secure the filter element body, thus improving the stability of the filter element body.

[0018] 3. By providing skirt sections on both sides of the separation ring, this application ensures that when the filter element body needs to be cleaned and reversed, the skirt sections can support the bulging filter element body, making it less likely for the edges of the separation ring to scratch or puncture the filter element body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0020] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle.

[0021] Figure 3 yes Figure 1 An exploded view of one of the clips and the filter body.

[0022] Figure 4 This is a partial structural diagram of the buckle engaging with the slot on the connecting strip in an embodiment of this application.

[0023] Figure 5 This is a schematic diagram of the buckle structure in an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Filter element body; 2. Connecting strip; 21. Slot; 3. Buckle; 31. Separation ring; 311. Separation protrusion; 32. Fixing ring; 33. Skirt section. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses an air filter structure.

[0027] Reference Figure 1 and Figure 2 The air filter structure includes a filter body 1, a connecting strip 2, and a buckle 3.

[0028] The filter element body 1 can be made of folded filter paper, and the filter element body 1 is cylindrical in shape. Multiple pleats are uniformly formed on the outer side of the filter element body 1 along the axial direction.

[0029] The connecting strip 2 is installed at the connection of the filter element body 1. The connecting strip 2 is used to connect and fix the connection of the filter element body 1. The connecting strip 2 is set along the axial direction of the filter element body 1 and is located outside the filter element body 1.

[0030] Reference Figures 1 to 3 Multiple slots 21 are formed on the connecting strip 2 along the axial direction of the filter element body 1. The multiple slots 21 can be evenly or unevenly distributed on the connecting strip 2. In this embodiment, the multiple slots 21 are evenly distributed on the connecting strip 2.

[0031] The cross-section of the connecting strip 2 is V-shaped, and the inner wall of the connecting strip 2 is bonded and fixed to the filter element body 1 or fixed by bolts or other connection methods.

[0032] Reference Figures 3 to 5 The buckle 3 is sleeved on the outside of the filter element body 1 and can be snapped into the slot 21. The number of buckles 3 is the same as the number of slots 21, and one buckle 3 is installed in each slot 21. The buckle 3 is used to fix the filter element body 1 and the connecting strip and prevent the filter element body 1 from breaking apart. At the same time, the buckle 3 can evenly separate the filter element body 1 so that the pleats of the filter element body 1 remain open, thereby improving the filtration effect of the filter element body 1.

[0033] Specifically, the buckle 3 includes a separating ring 31 and a fixing ring 32. The separating ring 31 has a number of separating protrusions 311 formed inside, which are the same as the number of pleated grooves on the filter element body 1. Each separating protrusion 311 is set in a pleated groove of the filter element body 1 in a one-to-one correspondence. The separating ring 31 is snapped into a slot on the connecting strip 2. When the separating ring 31 is snapped into the slot on the connecting strip 2, the separating protrusions 311 evenly separate the pleats on the filter element body 1, so that the filter element body 1 can maintain the pleated state well and filter impurities well.

[0034] The fixing ring 32 can be made of annular steel bar. The fixing ring 32 is located on the outer ring of the separating ring 31 and is used to fix the separating ring 31, improve the rigidity of the separating ring 31, and reduce the risk of the separating ring 31 breaking apart.

[0035] Furthermore, referring to Figure 4 The separation ring 31 is provided with skirt portions 33 at both ends in the axial direction. The skirt portions 33 are located on the side of the separation ring 31 away from the filter element body 1. That is, the diameter of the skirt portions 33 is larger than the diameter of the separation ring 31. Furthermore, the connection between the skirt portions 33 and the separation ring 31 needs to be polished or rounded to avoid scratching or puncturing the filter element body 1 at the connection between the skirt portions 33 and the separation ring 31.

[0036] In other possible embodiments, the skirt portion 33 may also be configured as a frustum, and the diameter of the skirt portion 33 gradually increases as the distance from the separation ring 31 increases.

[0037] When in use, the filter element structure uses the buckle 3 to fix the filter element body 1 and the connecting strip 2, and the separation protrusion 311 on the separation ring 31 can evenly separate the wrinkles on the filter element body 1 to maintain the wrinkle state on the filter element body 1 and improve the filtration effect.

[0038] 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. An air filter structure, characterized in that, include: The filter element body is cylindrical, with multiple pleats uniformly formed along the axial direction on the outer surface. Connecting strips are located at the connection points of the filter element body and are used to fix the filter element body. The card slot is located on the connecting strip; The buckle is fitted onto the filter element body and snaps into the slot to fix the filter element body and the connecting strip, and to evenly separate the filter element body.

2. The air filter structure according to claim 1, characterized in that, The connecting strip has a V-shaped cross-section, and its inner wall is fixed to the filter element body.

3. The air filter structure according to claim 1, characterized in that, There are multiple card slots, and each card slot is equipped with a buckle.

4. The air filter structure according to claim 3, characterized in that, The multiple slots are evenly distributed on the connecting strip.

5. The air filter structure according to claim 1, characterized in that, The buckle includes a separating ring and a fixing ring. The separating ring has a number of separating protrusions inside that are the same as the number of pleated grooves on the filter element body. Each of the separating protrusions is disposed in a pleated groove of the filter element body. The separating ring is snapped into a slot. The fixing ring is disposed on the outer ring of the separating ring and is used to fix the separating ring.

6. An air filter structure according to claim 5, characterized in that, The separating ring has skirted portions at both ends in the axial direction, and the skirted portions are located on the side of the separating ring away from the filter element body.

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