Filter element

Abstract

The embodiment of the utility model provides a filter element and relates to the technical field of filtering equipment. The filter element comprises a filter piece, a first end cover and a second end cover. The filtering part is hollow and is of a cylindrical structure, the filtering part is provided with a first end and a second end which are opposite in the axis direction of the filtering part, the first end cover is arranged at the first end of the filtering part, the second end cover is arranged at the second end of the filtering part, the first end cover and the second end cover are both made of flexible materials, and the first end cover and the second end cover are both bonded with the filtering part through mucilage glue. And the connection sealing performance among the first end cover, the second end cover and the filtering piece is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field, specifically, relate to a filter core. BACKGROUND

[0002] With the development of economy and social progress, people's quality of life and environmental requirements are higher and higher. Therefore, air purification equipment is more and more welcomed by people.

[0003] The filter core is usually indispensable in the air purification device, which is used for filtering air to achieve the effect of purification. Most of the filter cores in the present include a cylindrical filter element and end covers installed at both ends of the filter element. The existing patent 202222837610.X discloses an air filter element, which includes a filter material part and a frame part. The polyurethane of the frame part is bonded together with the filter material part through a foaming process to ensure the sealing degree between the two. SUMMARY

[0004] The utility model aims to provide a filter core, mainly to provide another end cover and filter element sealing connection mode, wherein the first end cover and the second end cover are bonded with the filter element by adhesive to ensure the connection sealing between the first end cover, the second end cover and the filter element.

[0005] The embodiment of the utility model can be realized as follows:

[0006] In the first aspect, the utility model provides a filter core, which comprises:

[0007] The filter element is hollow and has a cylindrical structure. The filter element has opposite first and second ends in the axial direction.

[0008] The first end cover is arranged at the first end of the filter element.

[0009] The second end cover is arranged at the second end of the filter element.

[0010] The first end cover and the second end cover are made of flexible material. The first end cover is bonded with the filter element by adhesive, and / or the second end cover is bonded with the filter element by adhesive.

[0011] In the optional embodiment, at least one of the first end cover and the second end cover is provided with a lifting part.

[0012] In the optional embodiment, at least one of the first end cover and the second end cover is made of sponge.

[0013] In an optional embodiment, the first end cover comprises a first end portion and a first surrounding portion, the first surrounding portion is arranged at the outer periphery of the first end portion, the first end cover is bonded to the first end surface of the filter element by adhesive, the first surrounding portion is bonded to the outer peripheral wall of the filter element by adhesive, and the first end portion or the first surrounding portion is provided with a pulling portion.

[0014] In an optional embodiment, the first surrounding portion extends along the axial direction of the filter element and has a length of 5-12 mm.

[0015] In an optional embodiment, the pulling portion is protruded from the outer periphery of the first surrounding portion, and the pulling portion is in an integral structure with the first surrounding portion and the first end portion.

[0016] In an optional embodiment, the outer side surface of the first surrounding portion is curved from the end surface of the filter element to the outer peripheral wall of the filter element.

[0017] In an optional embodiment, the second end cover comprises a second end portion and a second surrounding portion, the second end cover is bonded to the second end surface of the filter element, and the second surrounding portion is bonded to the outer peripheral wall of the filter element.

[0018] And / or the filter element has a through hole extending along the axial direction of the filter element, the through hole is coaxial with the filter element, and the first end cover and the second end cover are both provided with a matching hole coaxial with the through hole.

[0019] In an optional embodiment, the filter element comprises a first filter portion and a second filter portion coaxially and fixedly connected, and the second filter portion is sleeved on the first filter portion.

[0020] In an optional embodiment, the first filter portion is a pleated structure formed by folding, and the second filter portion is provided with activated carbon.

[0021] The utility model embodiment provides a kind of filter core, filter core includes filter element, first end cover and second end cover.The filter element is hollow and is cylindrical structure, the filter element has opposite first end and second end in the axial direction of itself, first end cover is located at the first end of filter element, second end cover is located at the second end of filter element, first end cover and second end cover are both made of flexible material, first end cover and second end cover are both bonded to filter element by adhesive, the connection sealing between first end cover and second end cover and filter element is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying creative labor, other related drawings can also be obtained according to these drawings.

[0023] Figure 1 A structure schematic view of the filter core under a first visual angle provided by the utility model embodiment;

[0024] Figure 2 A structure schematic view of the filter core under a second visual angle provided by the utility model embodiment;

[0025] Figure 3 A structure schematic view of the filter piece under a second visual angle provided by the utility model embodiment;

[0026] Figure 4 A structure schematic view of the filter piece provided by the optional utility model embodiment is partially cut.

[0027] Icon: 1-filter core; 100-filter piece; 110-first filter part; 120-second filter part; 130-protection piece; 140-connecting part; 150-supporting part; 101-first end; 102-second end; 103-through hole; 200-first end cover; 210-first end part; 220-first surrounding part; 230-lifting part; 300-second end cover; 310-second end part; 320-second surrounding part; 400-matching hole. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model embodiments clearer, the technical scheme in the utility model embodiments will be described clearly and completely below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

[0030] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and it does not indicate or imply 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 on the utility model.

[0032] In addition, if the terms "first", "second" and the like are used only to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0034] It should be noted that the end cover in some existing filter cartridges 1 is mostly a plastic end cover, since the hardness of the plastic end cover is relatively large, the end cover cannot easily deform under the action of external force, and is prone to damage after deformation and difficult to recover to the original state, therefore, the filter cartridge 1 occupies a relatively large space during transportation, and the transportation cost of the filter cartridge 1 is relatively high.

[0035] The embodiment provides a filter cartridge 1 which can be reset after overall deformation, therefore, when transporting the filter cartridge 1 in the embodiment, the filter screen can be folded, greatly saving the occupied space for transporting the filter cartridge 1, thereby reducing the transportation cost of the filter cartridge 1.

[0036] The specific structure of the filter cartridge 1 provided by the embodiment of the utility model and the corresponding technical effects brought by the specific structure will be described in detail below with reference to the patent drawings.

[0037] Please refer to Figures 1-3 The filter cartridge 1 provided by the embodiment of the utility model comprises a filter piece 100, a first end cover 200 and a second end cover 300.

[0038] The filter piece 100 is hollow and has a cylindrical structure, the filter piece 100 has opposite first and second ends 101 and 102 in the axial direction of the filter piece 100, the first end cover 200 is arranged at the first end 101 of the filter piece 100, and the second end cover 300 is arranged at the second end 102 of the filter piece 100, the first and second end covers 200 and 300 are both made of flexible material, the first end cover 200 is bonded to the filter piece 100 by adhesive, and the second end cover 300 is bonded to the filter piece 100 by adhesive.

[0039] It should be noted that the flexible material can be understood as a material that can deform and will not easily break.

[0040] It can be understood that, since the first end cover 200 and the second end cover 300 are both made of flexible material, the first end cover 200 and the second end cover 300 can be deformed to some extent, and the first end cover 200 and the second end cover 300 are both bonded to the filter element 100 by adhesive, which can ensure that the first end cover 200 is more tightly bonded to the filter element 100 at all places, and also can ensure that the second end cover 300 is more tightly bonded to the filter element 100 at all places, thereby ensuring the connection and sealing between the first end cover 200 and the second end cover 300 and the filter element 100.

[0041] At least one of the first end cover 200 and the second end cover 300 is provided with a lifting portion 230.

[0042] It should be noted that, in the present embodiment, the filter element 100 has a through hole 103 extending along the axis direction thereof, the through hole 103 is coaxial with the filter element 100, and the first end cover 200 and the second end cover 300 are both provided with a matching hole 400 coaxial with the through hole 103. By the provision of the through hole 103 and the matching hole 400, the gas can be filtered not only from the outside to the inside, but also from the inside to the outside, and the circulation of the gas can be ensured, thereby effectively ensuring the filtering effect of the filter element 100.

[0043] It can be understood that, since the filter element 100, the first end cover 200 and the second end cover 300 are all made of flexible material, the filter element 1 can be deformed as a whole under the action of external force, and due to the characteristics of the flexible material, it will not be easily damaged after deformation and can restore to its original state. Therefore, when transporting the filter element 1, the filter screen can be folded, which greatly saves the occupied space for transporting the filter element 1, thereby reducing the transportation cost of the filter element 1.

[0044] It should be noted that, for some existing filter elements 1 with hard end covers, the filter element 100 and the hard end cover are mostly bonded by gluing when assembling. Since the end cover is of hard structure, it is difficult to ensure the sealing between the end cover and the filter element 100.

[0045] However, in the present embodiment, the first end cover 200 and the second end cover 300 are both made of flexible material, i.e. the first end cover 200 and the second end cover 300 are both flexible and deformable. Therefore, when bonding the first end cover 200 and the second end cover 300 to the filter element 100, the operator can easily apply adhesive between the first end cover 200 and the filter element 100 and between the second end cover 300 and the filter element 100, thereby ensuring the sealing between the first end cover 200 and the filter element 100 and the sealing between the second end cover 300 and the filter element 100.

[0046] It can be understood that when the first end cover 200 is assembled with the filter element 100, the first end cover 200 or the second end cover 300 can be fixed by a mold, and glue can be rolled on the first end cover 200 or the second end cover 300. Then the filter element 100 can be directly spliced with the first end cover 200 and the second end cover 300. Since the first end cover 200 and the second end cover 300 are flexible, it can be ensured that each part of the filter element 100 can be in full contact with the first end cover 200 or the second end cover 300, thereby ensuring the sealing property of the first end cover 200 or the second end cover 300 and the filter element 100.

[0047] Since at least one of the first end cover 200 or the second end cover 300 is provided with the pulling portion 230, it needs to be explained that when the filter element 1 is disassembled, the user can pull out the filter element 1 through the pulling portion 230.

[0048] In detail, in the present embodiment, the first end cover 200 is provided with the pulling portion 230, and the second end cover 300 is not provided with the pulling portion 230. Of course, in another optional embodiment, the first end cover 200 and the second end cover 300 can be both provided with the pulling portion 230.

[0049] Optionally, at least one of the first end cover 200 and the second end cover 300 is made of sponge, and the sponge can be ethylene-propylene-diene rubber material, that is, at least one of the first end cover 200 and the second end cover 300 is made of ethylene-propylene-diene rubber material. In the present embodiment, the first end cover 200 and the second end cover 300 are both made of ethylene-propylene-diene rubber material. It can be understood that ethylene-propylene-diene rubber material has good elasticity, aging resistance, and resistance to ozone and ultraviolet radiation. That is, the first end cover 200 and the second end cover 300 made of ethylene-propylene-diene rubber material can not be aged after being exposed to air for a long time, and can also resist ozone and ultraviolet radiation, thereby ensuring the service life of the filter element 1 in the present embodiment.

[0050] In addition, ethylene-propylene-diene rubber material also has good chemical stability and good temperature adaptability. Ethylene-propylene-diene rubber material is an environmentally friendly and odorless material, which can resist corrosion of various acid and alkali substances and is suitable for various different working environments. It also has good resistance to most oils and organic solvents and will not deteriorate due to contact with these substances. It can work normally in a high temperature environment and can generally withstand a maximum temperature of 150°C. It can still maintain good elasticity and sealing performance in a low temperature environment and can withstand a minimum low temperature of -40°C. It also does not produce odor during use.

[0051] Of course, in another embodiment, the first end cover 200 and the second end cover 300 can also be made of other flexible materials, such as silicone rubber, chloroprene rubber, nitrile rubber, natural rubber, or polyurethane rubber.

[0052] In detail, the filter element 100 comprises a coaxial and fixedly connected first filter part 110 and a second filter part 120, the second filter part 120 is sleeved on the first filter part 110. It can be understood that the first filter part 110 and the second filter part 120 are provided, that is, the filter element 1 has at least two layers of filters, thereby improving the filtering effect of the filter element 1.

[0053] Optionally, the first filter part 110 is a pleated structure formed by folding, and the second filter part 120 is provided with activated carbon. It can be understood that the first filter part 110 can be understood as being repeatedly folded back and forth in a wave shape by a filter paper with a certain width. After folding, a plurality of folding surfaces with the same width are formed on the first filter part 110, and the first filter part 110 is in a ring structure.

[0054] Optionally, the second filter part 120 can be formed by bonding activated carbon with cotton, and the second filter part 120 is also in a ring structure.

[0055] It can be understood that since the second filter part 120 is located on the outer side of the filter element 1, it can ensure that the air first contacts the activated carbon when entering the air purifier, effectively removing odors and harmful gases such as formaldehyde, benzene, and volatile organic compounds (VOCs), and then passing through the inner first filter part 110 of the inner ring can provide a larger filtering area in a limited space, thereby improving the filtering efficiency of particulate matter.

[0056] It should be noted that the outer side of the filter element 100 is also sleeved with a cylindrical protective element 130, and the protective element can be made of sponge material.

[0057] Optionally, please refer to Figure 4 In some embodiments, the filter element further comprises a cylindrical connecting part 140 and a supporting part 150, wherein the supporting part 150 is sleeved on the second filter part 120, and the supporting part 150 can be bonded to the second filter part by adhesive. The connecting part 140 is sleeved on the supporting part 150, and the connecting part 140 can also be bonded to the supporting part 150 by adhesive. The protective element 130 can be sleeved on the connecting part 140, and the connecting part 140 can be a mesh filter structure and can play a certain filtering role. Of course, the protective element 130 can also be bonded to the connecting part 140 by adhesive.

[0058] Of course, in some other embodiments, the first filter part 110 can also be sleeved on the second filter part 120, that is, the first filter part 110 can be located on the outer ring of the filter element 1, and the second filter part 120 is located on the inner ring of the filter element 1.

[0059] In detail, the first end cover 200 comprises a first end portion 210 and a first surrounding portion 220, the first surrounding portion 220 is arranged at the outer periphery of the first end portion 210, the first end cover 200 is bonded with the first end 101 of the filter element 100, and the first surrounding portion 220 is bonded with the outer peripheral wall of the filter element 100. In order to ensure the connection strength and stability of the first surrounding portion 220 and the filter element 100, the first surrounding portion extends along the axis of the filter element 100 and has a length of 5-12 mm.

[0060] The first end portion 210 or the first surrounding portion 220 is provided with a pulling portion 230. In detail, the pulling portion 230 is protruded from the outer periphery of the first surrounding portion 220, and the pulling portion 230, the first surrounding portion 220 and the first end portion 210 are in an integrated structure.

[0061] In detail, the outer side surface of the first surrounding portion 220 is curved along the end surface of the filter element 100 to the direction of the outer peripheral wall of the filter element 100, so as to ensure that the first surrounding portion 220 is in close contact with the outer periphery of the filter element 100.

[0062] It can be understood that, since the first end cover 200 is also provided with the first surrounding portion 220, and the first surrounding portion 220 is also bonded with the outer peripheral wall of the filter element 100, the stability of the bonding between the first end cover 200 and the filter element 100 can be ensured, and the filter element 1 is prevented from being easily damaged, and the service life of the filter element 1 is ensured.

[0063] In detail, in the embodiment, the pulling portion 230 is arranged on the first surrounding portion 220, and the number of the pulling portion 230 is multiple and the multiple pulling portions 230 are arranged at intervals along the circumference of the first surrounding portion 220. Through the arrangement of the multiple pulling portions 230, the efficiency of the user in disassembling the filter element 1 can be improved.

[0064] It should be noted that, in the embodiment, the first end cover 200 is in an integrated structure, that is, the pulling portion 230, the first end portion 210 and the first surrounding portion 220 on the first end cover 200 are all integral components of the integrated end cover, and the strength of the first end cover 200 itself is ensured.

[0065] The second end cover 300 comprises a second end portion 310 and a second surrounding portion 320, the second end cover 300 is bonded with the second end portion 310 of the filter element 100, and the second surrounding portion 320 is bonded with the outer peripheral wall of the filter element 100. Similarly, the second surrounding portion 320 is also bonded with the outer peripheral wall of the filter element 100, so as to ensure the stability of the bonding between the second end cover 300 and the filter element 100, prevent the filter element 1 from being easily damaged, and ensure the service life of the filter element 1.

[0066] In the embodiment, the second end cover 300 is also a one-piece structure, that is, the second end portion 310 and the second surrounding portion 320 on the second end cover 300 are integral components of the one-piece end cover, which ensures the strength of the second end cover 300.

[0067] The utility model embodiment further provides an air purification equipment, and the air purification equipment includes the filter core 1.

[0068] To sum up, the utility model embodiment provides a filter core 1, and the filter core 1 includes filter piece 100, first end cover 200 and second end cover 300. Filter piece 100 is hollow and is cylindrical structure, and filter piece 100 has opposite first end 101 and second end 102 in the direction of its own axis, first end cover 200 is arranged at the first end 101 of filter piece 100, and second end cover 300 is arranged at the second end 102 of filter piece 100, first end cover 200 and second end cover 300 are made of flexible material, and first end cover 200 and second end cover 300 are bonded with filter piece 100 through adhesive, which ensures the connection sealing property between first end cover 200, second end cover 300 and filter piece 100.

[0069] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A filter element, characterized in that, include: A filter element, which is hollow and has a cylindrical structure, and has a first end and a second end opposite to each other in the direction of its own axis; A first end cap is disposed at the first end of the filter element; The second end cap is disposed at the second end of the filter element; Both the first end cap and the second end cap are made of flexible material. The first end cap is bonded to the filter element by adhesive, and / or the second end cap is bonded to the filter element by adhesive.

2. The filter element according to claim 1, characterized in that: At least one of the first end cap and the second end cap is provided with a lifting portion.

3. The filter element according to claim 1, characterized in that: At least one of the first end cap and the second end cap is made of sponge.

4. The filter element according to claim 1, characterized in that: The first end cap includes a first end and a first enclosure portion. The first enclosure portion is disposed on the outer periphery of the first end. The first end cap is bonded to the first end face of the filter element by the adhesive. The first enclosure portion is bonded to the outer peripheral wall of the filter element by the adhesive. The first end or the first enclosure portion is provided with a lifting portion.

5. The filter element according to claim 4, characterized in that: The first enclosure extends along the axial direction of the filter element and has a length of 5 to 12 mm.

6. The filter element according to claim 4, characterized in that: The lifting portion protrudes from the outer edge of the first enclosure portion, and the lifting portion, the first enclosure portion, and the first end portion are integrally formed.

7. The filter element according to claim 4, characterized in that: The outer side of the first enclosure is bent along the end face of the filter element towards the outer peripheral wall of the filter element.

8. The filter element according to claim 1, characterized in that: The second end cap includes a second end portion and a second enclosure portion. The second end cap is bonded to the second end face of the filter element, and the second enclosure portion is bonded to the outer peripheral wall of the filter element. And / or the filter element has a through hole extending along its own axis, the through hole being coaxial with the filter element, and both the first end cap and the second end cap having mating holes, the mating holes being coaxial with the through hole.

9. The filter element according to claim 1, characterized in that: The filter element includes a first filter section and a second filter section that are coaxial and fixedly connected, with the second filter section sleeved on the first filter section.

10. The filter element according to claim 9, characterized in that: The first filter section has a pleated structure formed by folding, and the second filter section is provided with activated carbon.

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