Air filter element based on PET non-woven fabric

Abstract

The utility model discloses an air filter element based on PET non-woven fabrics, which comprises three groups of filter element bodies, the interior of each group of filter element body is respectively composed of a PET non-woven fabric layer, a metal outer framework, a filter inner layer and a metal inner framework, the outer side of the metal inner framework is provided with the filter inner layer and the metal outer framework, and the PET non-woven fabric layer is arranged on the outer side of the metal outer framework. A PET non-woven fabric layer is laid on the outer side of the metal outer framework; through the arrangement of the splicing structure of the splicing rings, a plurality of filter element bodies can be conveniently spliced and combined, a plurality of filter elements can be stably spliced according to the actually required length, and meanwhile, the splicing blocks and the splicing grooves are used for position calibration and the positioning bolts and the U-shaped fixing rods are used for clamping and positioning, so that the filter element bodies can be conveniently spliced and combined. The tightness and the stability of the splicing structure of the filter element are further ensured, so that stable air filtering work of the filter element is met, the splicing combination structure of the splicing ring is utilized, recycling and dismounting are facilitated, and the operability and the working efficiency of recycling of the filter element are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, in particular to an air filtration filter element based on PET non-woven fabric. Background Art

[0002] At present, in equipment such as automobiles and air conditioning systems, in order to improve the operation stability of the equipment and improve the air quality, a new type of air filter element device made of PET plastic material and PET non-woven fabric material has emerged. This kind of air filter element has a simple structure, low production and use costs, and a resource recovery utilization rate of nearly 100%. Therefore, the usage amount is huge;

[0003] The authorized announcement number CN205308006U discloses an air filtration filter element based on PET non-woven fabric. This new type has a simple structure, high structural strength, good filtration effect, is flexible and convenient to use, has a simple production process and low cost. Thus, on the one hand, it meets the needs of air filtration work, and the filtration performance is stable. On the other hand, it can effectively improve the resource recovery utilization rate of the filter element, and the recycling cost is low. However, when the device is actually used, there are still the following defects:

[0004] The above patent mainly improves the structural strength of the filter element and increases the resource recovery utilization rate of the filter element. When a longer filter element structure needs to be selected according to requirements, multiple filter elements usually need to be combined. However, multiple filter elements generally do not have a splicing structure, resulting in greater difficulty in splicing the filter elements, and the stability of multiple spliced filter elements is poor, unable to meet the normal structural strength and use of the filter element. And during recycling and disassembly, the disassembly and assembly process is relatively cumbersome, increasing the limitations and inconvenience of filter element recycling. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an air filtration filter element based on PET non-woven fabric to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an air filtration filter element based on PET non-woven fabric, including a filter element body. There are three groups of the filter element bodies. The interior of each group of filter element bodies is respectively composed of a PET non-woven fabric layer, a metal outer skeleton, a filter inner layer, and a metal inner skeleton. The filter inner layer and the metal outer skeleton are arranged outside the metal inner skeleton, and the PET non-woven fabric layer is laid outside the metal outer skeleton. The top of one group of metal inner skeletons is provided with an upper end cover, and a screen is arranged inside the upper end cover. The bottom of another group of metal inner skeletons is provided with a lower end cover. A splicing ring for splicing combination is arranged between the three groups of filter element bodies;

[0007] At the top and bottom of the inner sides of the two sets of the splicing rings, splicing grooves are formed. On both sides of the top and bottom of the two filter element bodies, splicing blocks are installed, and the splicing blocks are snap-fitted with the splicing grooves. Insertion holes are formed inside the two sets of splicing blocks on the same side. On both sides of the two sets of splicing rings, U-shaped fixing rods in sliding fit are sleeved, and the U-shaped fixing rods pass through the inside of the splicing rings and are inserted and fixed with the insertion holes. Inside the two sets of U-shaped fixing rods, positioning bolts threadedly connected with the splicing rings are sleeved.

[0008] Preferably, a conical connecting ring is provided at the bottom of the three filter element bodies. A conical splicing seat is connected to the top of the two filter element bodies, and the conical splicing seat and the conical connecting ring are combined and spliced. A filter screen layer is provided inside the three conical connecting rings to improve the filtering efficiency inside the filter element.

[0009] Preferably, threaded holes are symmetrically formed on the outer sides of the two sets of splicing rings, and the threaded holes are threadedly adapted to the positioning bolts, which is convenient for locking and fixing the U-shaped fixing rods by connecting the positioning bolts and the threaded holes.

[0010] Preferably, the two filter element bodies are spliced and combined with the splicing rings through the snap-fitting of the splicing blocks and the splicing grooves, and the U-shaped fixing rods simultaneously insert and fix the splicing blocks spliced at the top and bottom of the inner sides of the splicing rings.

[0011] Preferably, the metal inner framework and the metal outer framework are coaxially distributed on the outer layer and the inner layer of the filter element body, and a filter inner layer is provided between the metal inner framework and the metal outer framework. The filter layer and the non-woven fabric layer are stably erected through the framework structures of the inner and outer layers, thereby improving the stability of the filter element structure.

[0012] An air filter element based on PET non-woven fabric proposed by the present utility model at least includes the following

[0013] Beneficial effects:

[0014] Through the setting of the splicing structure of the splicing rings, it is convenient to splice and combine multiple filter element bodies, and multiple filters can be stably spliced according to the length required in actual situations. At the same time, by using the position calibration of the splicing blocks and the splicing grooves and the snap-fitting positioning of the positioning bolts and the U-shaped fixing rods, the tightness and stability of the filter element splicing structure are ensured, so as to meet the stable air filtering work of the filter element. And by using the splicing and combination structure of the splicing rings, it is convenient for recycling and disassembly, increasing the operability and working efficiency of filter element recycling. Brief description of the drawings

[0015] Figure 1 is a three-dimensional view of the present utility model;

[0016] Figure 2 is a front view cross-sectional view of the present utility model;

[0017] Figure 3Stereogram of the filter element body and the splicing ring of the present utility model;

[0018] Figure 4 of the present utility model Figure 2 Schematic enlarged view of the structure at position A.

[0019] In the figure: 1, filter element body; 2, splicing ring; 3, lower end cover; 4, screen; 5, upper end cover; 6, PET non-woven fabric layer; 7, metal outer skeleton; 8, inner filter layer; 9, metal inner skeleton; 10, conical connection ring; 11, conical splicing seat; 12, U-shaped fixing rod; 13, positioning bolt; 14, splicing block; 15, splicing groove; 16, jack. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the embodiment provided by the present utility model: an air filter element based on PET non-woven fabric, including a filter element body 1. There are three groups of filter element bodies 1, and the interior of each group of filter element bodies 1 is respectively composed of a PET non-woven fabric layer 6, a metal outer skeleton 7, an inner filter layer 8 and a metal inner skeleton 9. The outer side of the metal inner skeleton 9 is provided with an inner filter layer 8 and a metal outer skeleton 7, and a PET non-woven fabric layer 6 is laid on the outer side of the metal outer skeleton 7. The top of a group of metal inner skeletons 9 is provided with an upper end cover 5, and a screen 4 is provided inside the upper end cover 5. The bottom of another group of metal inner skeletons 9 is provided with a lower end cover 3. A splicing ring 2 for splicing combination is provided between the three groups of filter element bodies 1;

[0022] Splicing grooves 15 are opened at the top and bottom inside the two splicing rings 2. Splicing blocks 14 are installed on both sides of the top and bottom of the two filter element bodies 1, and the splicing blocks 14 are snap-fitted and spliced with the splicing grooves 15. Jacks 16 are opened inside the two splicing blocks 14 on the same side. U-shaped fixing rods 12 in sliding fit are sleeved on both sides of the two splicing rings 2, and the U-shaped fixing rods 12 pass through the inside of the splicing rings 2 and are inserted and fixed with the jacks 16. Positioning bolts 13 threadedly connected with the splicing rings 2 are sleeved inside the two U-shaped fixing rods 12. Threaded holes are symmetrically opened on the outer sides of the two splicing rings 2, and the threaded holes are threadedly adapted to the positioning bolts 13, which is convenient to lock and fix the U-shaped fixing rods by connecting the positioning bolts 13 and the threaded holes;

[0023] The metal inner framework 9 and the metal outer framework 7 are coaxially distributed and arranged on the outer layer and the inner layer of the filter element body 1, and a filter inner layer 8 is arranged between the metal inner framework 9 and the metal outer framework 7. The filter layer and the non-woven fabric layer are stably erected through the framework structures of the inner and outer layers, thereby improving the structural stability of the filter element.

[0024] Example 1, as Figures 1-4 shown, a conical connecting ring 10 is provided at the bottom of three groups of filter element bodies 1, and a conical splicing seat 11 is connected to the top of two groups of filter element bodies 1. The conical splicing seat 11 and the conical connecting ring 10 are combined and spliced. A filter screen layer is arranged inside the three conical connecting rings 10. By providing a conical connecting ring 10 below each group of filter element bodies 1 and a conical splicing seat 11 that engages with the conical connecting ring 10 above the splicing, the precise calibration and precise fitting of each group of filter element bodies 1 are ensured, and by additionally providing a filter screen layer in each splicing layer, the filtering strength and efficacy of the filter element are further enhanced.

[0025] Example 2, as Figures 1-4 shown, two groups of filter element bodies 1 are spliced and combined with a splicing ring 2 through the engagement of splicing blocks 14 and splicing grooves 15. The U-shaped fixing rod 12 simultaneously inserts and fixes the splicing blocks 14 spliced at the top and bottom inside the splicing ring 2. Using the fixing method of this structure, it is convenient to quickly position the splicing between the two groups of filter element bodies 1 and the splicing ring 2, improve the working efficiency of structural assembly, and is easy to disassemble and separate.

[0026] Working principle: In the air filter element based on PET non-woven fabric;

[0027] The filter element main body composed of the PET non-woven fabric layer 6, the metal outer framework 7, the filter inner layer 8 and the metal inner framework 9 arranged inside each group of filter element bodies 1 is used to form a filter element structure of PET non-woven fabric for air filtration work. When a longer filter element is needed, according to the length requirement, multiple filter elements are erected, and the structure is combined through a matching splicing ring 2. Thus, by using the combination method of the splicing ring 2, the two splicing blocks 14 provided at the top and the two splicing blocks 14 provided at the bottom of the two groups of filter element bodies 1 are inserted into the splicing grooves 15 opened in the upper and lower layers of the splicing ring 2. So, through the engagement splicing of this structure, the two groups of filter element bodies 1 are pre-positioned under the connection of the splicing ring 2. Then, the positioning bolt 13 is pushed into the inside of the splicing ring 2 and contacts the splicing block 14 and the splicing groove 15, prompting the U-shaped fixing rod 12 to insert into the jack 16 inside the splicing block 14 for fixing. Finally, by rotating and tightening the positioning bolt 13, multiple filter elements can be quickly spliced and combined, and the splicing strength is more stable, thus being applicable to highly stable air filtration work.

[0028] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0029] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An air filter element based on PET nonwoven fabric, comprising a filter element body (1), characterized in that: The filter element body (1) is provided with three groups, and the interior of each group of the filter element body (1) is respectively composed of a PET non-woven fabric layer (6), a metal outer frame (7), a filter inner layer (8) and a metal inner frame (9); the outer side of the metal inner frame (9) is provided with a filter inner layer (8) and a metal outer frame (7), and the outer side of the metal outer frame (7) is paved with a PET non-woven fabric layer (6); the top of one group of the metal inner frames (9) is provided with an upper end cover (5), and the inner side of the upper end cover (5) is provided with a screen (4); the bottom of another group of the metal inner frames (9) is provided with a lower end cover (3); and splicing rings (2) for splicing are provided between the three groups of the filter element bodies (1); The top and bottom of the inner side of the two groups of splicing rings (2) are provided with splicing grooves (15), the top and bottom sides of the two groups of filter element bodies (1) are installed with splicing blocks (14), and the splicing blocks (14) are spliced ​​with the splicing grooves (15), and the splicing blocks (14) are spliced ​​with the splicing grooves (15), and the inside of the two groups of splicing blocks (14) on the same side is provided with a plug hole (16), and the two sides of the two groups of splicing rings (2) are sleeved with a U-shaped fixing rod (12) that is slidably matched, and the U-shaped fixing rod (12) passes through the inside of the splicing ring (2) and is inserted and fixed with the plug hole (16), and the inside of the two groups of U-shaped fixing rods (12) is sleeved with a positioning bolt (13) that is threadedly connected to the splicing ring (2).

2. The air filter element based on PET nonwoven fabric according to claim 1, characterized in that: The bottoms of the three groups of filter element bodies (1) are provided with conical connecting rings (10), the tops of the two groups of filter element bodies (1) are connected with conical splicing seats (11), and the conical splicing seats (11) are combined and spliced ​​with the conical connecting rings (10), and the interiors of the three groups of conical connecting rings (10) are provided with filter screen layers.

3. The air filter element based on PET nonwoven fabric according to claim 1, characterized in that: The outer sides of the two groups of splicing rings (2) are symmetrically provided with threaded holes, and the threaded holes are threadably matched with the positioning bolts (13).

4. The air filter element based on PET nonwoven fabric according to claim 1, characterized in that: The two groups of filter element bodies (1) are spliced ​​and assembled with the splicing ring (2) through the snap-fit ​​splicing of the splicing blocks (14) and the splicing grooves (15), and the U-shaped fixing rod (12) simultaneously inserts and fixes the splicing blocks (14) spliced ​​at the top and bottom of the inner side of the splicing ring (2).

5. The air filter element based on PET nonwoven fabric according to claim 1, characterized in that: The metal inner skeleton (9) and the metal outer skeleton (7) are coaxially distributed on the outer layer and the inner layer of the filter element body (1), and a filtering inner layer (8) is provided between the metal inner skeleton (9) and the metal outer skeleton (7).

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