Multi-point connection stable filter element

Abstract

The utility model belongs to the technical field of filtering equipment, and particularly relates to a multipoint connection stable filter element which comprises an end cover, a connecting cylinder and a wrinkled filter cylinder, and the connecting cylinder is arranged on the end cover; the pleated filter cartridge is arranged on the outer side wall of the connecting cylinder in a sleeving manner, and the end part of the pleated filter cartridge is fixedly connected with the end cover; wherein a plurality of filter holes are formed in the side wall of the connecting cylinder in a penetrating manner, at least one group of connecting ribs extending in the circumferential direction and the length direction of the outer side wall of the connecting cylinder are arranged on the outer side wall of the connecting cylinder, and the inner ring of the wrinkled filter cylinder is fixedly connected with a plurality of positions of the connecting ribs. Through the design of the connecting ribs which are in multi-point fixed connection on the same axis with the inner ring of the wrinkled filter cylinder, the connecting stability of the connecting cylinder and the wrinkled filter cylinder is effectively improved, and the structural strength of the filter element is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter equipment technical field especially relates to a multi -point connection stable filter core. BACKGROUND

[0002] In the traditional air filter design, the structure of filter core is commonly fixed with filter paper on the middle frame, so as to play the role of filtering particulate matter in air. However, there is a obvious defect in this design: the connection stability between filter paper and middle frame is insufficient. This connection method not only affects the overall durability of filter core, but also in the process of use, filter paper can fall off from the middle frame, and further cause the decline of air filtration effect, or cause the damage of air filter internal structure. This unstable connection problem limits the performance improvement and wide application of traditional air filter, especially in the high filtration requirement industry and environmental protection field. SUMMARY

[0003] The utility model discloses a multi -point connection stable filter core, and aims at solving the technical problem of filter core in prior art in the process of use, filter paper can fall off from the middle frame, and further cause the decline of air filtration effect, the damage of air filter internal structure.

[0004] To achieve the above object, a multi -point connection stable filter core provided by the utility model embodiment, including end cover, connecting barrel and pleated filter cartridge, the connecting barrel is arranged on the end cover, the pleated filter cartridge is sleeved on the outer lateral wall of the connecting barrel, and the end of the pleated filter cartridge is fixedly connected with the end cover, wherein the lateral wall of the connecting barrel is provided with a plurality of filter holes, the outer lateral wall of the connecting barrel is provided with at least a group of connecting ribs extending along the circumferential direction and length direction of the outer lateral wall of the connecting barrel, and the inner ring of the pleated filter cartridge is fixedly connected with a plurality of positions of the connecting rib.

[0005] Optionally, the connecting barrel is provided in a cylindrical structure, and the two ends of the connecting barrel are fixedly connected with the end cover through a glue layer.

[0006] Optionally, the number of the end cover is two groups, and the two groups of end covers are fixedly connected at the two ends of the connecting barrel one by one through corresponding glue layers, and a perforation communicating with the inner ring of the connecting barrel is arranged on one group of end covers.

[0007] Optionally, the connecting rib is arranged in an inclined extension mode along the outer lateral wall of the connecting barrel.

[0008] Optionally, the connecting barrel is provided in a linear cylindrical structure, the planes where the two end edges of the connecting barrel are located are parallel to each other, and the connecting rib extends along the outer lateral wall of the connecting barrel, and the extension direction of the connecting rib is always arranged in an inclined and staggered mode with the planes where the two end edges of the connecting barrel are located.

[0009] Optionally, the connecting cylinder is arranged in a circular cylindrical structure.

[0010] Optionally, the connecting cylinder is arranged in a square cylindrical structure.

[0011] Optionally, along the axial direction perpendicular to the end faces where the edges of both ends of the connecting cylinder are located, at least two connecting points in contact with the inner circle of the pleated filter cartridge are formed on the connecting rib.

[0012] Optionally, the end cover is arranged in a C-shaped cross-sectional structure, and a receiving groove for receiving the glue injection layer and the end of the connecting cylinder is formed on the end face of the end cover facing the connecting cylinder.

[0013] Optionally, a limiting boss for limiting the connecting cylinder is convexly provided at the middle position of the receiving groove.

[0014] One or more of the above technical solutions in the multi-point connection stable filter cartridge provided by the embodiment of the present invention at least have the following technical effects: the connecting ribs on the outer side wall of the connecting cylinder extend obliquely along the circumferential and longitudinal directions of the connecting cylinder, so that at least two connecting points exist on any axial path on the outer side wall of the connecting cylinder. The position of the pleated filter cartridge along the corresponding axis of the connecting cylinder can be fixedly connected to all the connecting points, such as glue connection or ultrasonic welding, etc.; compared with the filter cartridge in the prior art during use, the filter paper may fall off from the middle frame, which may lead to problems such as a decrease in air filtration effect and damage to the internal structure of the air filter. The multi-point connection stable filter cartridge provided by the embodiment of the present invention effectively improves the connection stability between the connecting cylinder and the pleated filter cartridge through the design of the connecting ribs that achieve multi-point fixed connection on the same axis with the inner circle of the pleated filter cartridge, and improves the structural strength of the filter cartridge. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is an exploded view of the structure of the multi-point connection stable filter cartridge provided by the embodiment of the present invention.

[0017] Figure 2 It is a sectional view of the multi-point connection stable filter cartridge provided by the embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the connecting cylinder and the connecting rib provided by the embodiment of the present invention.

[0019] Figure 4 A structure schematic diagram of the multi-point connection stable filter core is provided in the embodiment of the present application.

[0020] In the figure, various reference signs are as follows:

[0021] 100 - end cover 200 - connecting cylinder 300 - pleated filter cartridge

[0022] 400 - filter hole 500 - connecting rib 600 - glue filling layer

[0023] 110 - perforation 700 - limiting boss. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments are described below by referring to the drawings. Figures 1-4 The described embodiments are exemplary, and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] In an embodiment of the utility model, as shown in Figures 1-4 As shown in the figure, a multi-point connection stable filter element is provided, comprising an end cover 100, a connecting cylinder 200 and a pleated filter cartridge 300, the connecting cylinder 200 is arranged on the end cover 100; the pleated filter cartridge 300 is sleeved on the outer sidewall of the connecting cylinder 200, and the end part of the pleated filter cartridge 300 is fixedly connected with the end cover 100; wherein a plurality of filter holes 400 are arranged on the sidewall of the connecting cylinder 200, at least one group of connecting ribs 500 extending along the circumferential direction and the length direction of the outer sidewall of the connecting cylinder 200 is arranged on the outer sidewall of the connecting cylinder 200, and the inner ring of the pleated filter cartridge 300 is fixedly connected with the plurality of positions of the connecting rib 500.

[0029] As shown in the figure, Figures 1-4 In the embodiment, the connecting cylinder 200 is formed by punching and rolling a metal steel plate, and the filter holes 400 are formed on the connecting cylinder 200 in the punching process. Wherein, the pleated filter cartridge 300 is a pleated filter paper.

[0030] Specifically, the connecting rib 500 of the outer sidewall of the connecting cylinder 200 extends along the circumferential direction and the length direction of the connecting cylinder 200, so that the connecting rib 500 has at least two connecting points on the outer sidewall of the connecting cylinder 200 along any axis path, and the position of the pleated filter cartridge 300 along the corresponding axis of the connecting cylinder 200 can be fixedly connected with all the connecting points, such as adhesive connection or ultrasonic welding, etc. Compared with the filter element in the prior art, the pleated filter paper may fall off from the middle frame during use, thereby causing the technical problems of air filtration effect decline and damage to the internal structure of the air filter. The multi-point connection stable filter element provided in the embodiment of the utility model realizes the multi-point fixed connection of the connecting rib 500 on the same axis with the inner ring of the pleated filter cartridge 300, effectively improves the connection stability of the connecting cylinder 200 and the pleated filter cartridge 300, and improves the structural strength of the filter element.

[0031] As shown in the figure, Figures 1-4 Further, the connecting cylinder 200 is arranged in a cylindrical structure, and the two ends of the connecting cylinder 200 are fixedly connected with the end cover 100 through a glue filling layer 600. Specifically, the glue material is accumulated in the preset position of the end cover 100 by glue filling, and the edge of the connecting cylinder 200 is covered and fixed, thereby effectively improving the connection stability between the connecting cylinder 200 and the end cover 100.

[0032] As shown in the figure, Figures 1-4As shown, further, the number of the end cover 100 is two groups, and the two groups of the end cover 100 are fixedly connected to the two ends of the connecting cylinder 200 through the corresponding adhesive layer respectively, and a group of the end cover 100 is provided with a perforation 110 communicating with the inner ring of the connecting cylinder 200. The gas to be filtered enters the inner ring of the connecting cylinder 200 from the perforation 110, and then moves to the pleated filter cartridge 300 from the filter hole 400, thereby realizing filtering.

[0033] As shown in the drawings, Figures 1-4 As shown, further, the connecting rib 500 is arranged to extend obliquely along the outer side wall of the connecting cylinder 200; specifically, when the connecting cylinder 200 is in the state of a metal steel plate, the connecting rib 500 is arranged in a straight line structure, one end of the connecting rib 500 is fixedly connected to the edge of the connecting cylinder 200 in the state of a plate, and the other end of the connecting rib 500 is arranged obliquely staggered with the edge of the connecting cylinder 200, and the middle position of the connecting rib 500 is fixedly connected to the middle position of the connecting cylinder 200. When the connecting cylinder 200 is rolled, the connecting rib 500 deforms with the connecting cylinder 200 to a preset shape.

[0034] As shown in the drawings, Figures 1-4 As shown, further, the connecting cylinder 200 is arranged in a straight line cylinder structure, and the planes where the two ends of the connecting cylinder 200 are located are parallel to each other, and the connecting rib 500 extends along the outer side wall of the connecting cylinder 200. It should be noted that the length of the connecting rib 500 and the connecting cylinder 200 should be sufficient to reach a preset value, so that the connecting rib 500 contacts the single length axis of the side wall of the connecting cylinder 200 after rolling at least twice. That is, along the axial direction perpendicular to the end face where the two ends of the connecting cylinder 200 are located, the connecting rib 500 is formed with at least two connecting points in contact with the inner ring of the pleated filter cartridge 300.

[0035] In this embodiment, the connecting cylinder 200 is arranged in a circular cylinder structure, and the connecting rib 500 is arranged in a threaded structure and extends along the outer side wall of the connecting cylinder 200, as shown in the drawings, Figure 3 As shown, the contact points of the axis X and the connecting rib 500 are at least two groups, for example, as shown in the drawings, Figure 3 As shown, the connecting points of the connecting rib 500 and the single axis X of the outer side wall of the connecting cylinder 200 are A~H; in the remaining embodiments, the connecting cylinder 200 can also be arranged in a square cylinder structure. By arranging the connecting rib 500 extending in a spiral, the pleated filter paper can be accurately and fully fixedly connected with the connecting rib 500.

[0036] As shown in the drawings, Figures 1-4As shown, further, the end cover 100 is in a shape of a Chinese character "fang", and an accommodating groove is formed on the end surface of the end cover 100 for accommodating the glue filling layer 600 and the end of the connecting cylinder 200, which is beneficial to the curing of the glue in the preset area and prevents the glue from overflowing.

[0037] As shown, Figures 1-4 Further, a limiting boss 700 is arranged at the middle position of the accommodating groove for limiting the connecting cylinder 200, and the limiting boss 700 is adapted to the inner ring of the connecting cylinder 200 to improve the installation convenience of the connecting cylinder 200.

[0038] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-point connection stabilizing filter cartridge, characterized by, The utility model relates to a filter device, including: an end cover; a connecting cylinder arranged on the end cover; a pleated filter cartridge sleeved on the outer sidewall of the connecting cylinder, the end of the pleated filter cartridge being fixedly connected with the end cover; wherein the sidewall of the connecting cylinder is provided with a plurality of filter holes, the outer sidewall of the connecting cylinder is provided with at least one set of connecting ribs extending along the circumferential direction and the length direction of the outer sidewall of the connecting cylinder, and the inner ring of the pleated filter cartridge is fixedly connected with multiple positions of the connecting ribs.

2. The multi-port connection stable filter cartridge of claim 1, wherein: The connecting cylinder is in a cylindrical structure, and the two ends of the connecting cylinder are fixedly connected with the end cover through a glue filling layer.

3. The multi-port connection stable filter cartridge of claim 2, wherein: The number of the end cover is two sets, and the two sets of end covers are fixedly connected with the two ends of the connecting cylinder through corresponding adhesive layers one by one, wherein the end cover is provided with a through hole communicating with the inner ring of the connecting cylinder.

4. The multi-port connection stable filter cartridge of claim 1, wherein: The connecting rib is arranged in an inclined extension along the outer sidewall of the connecting cylinder.

5. The multi-port connection stable filter cartridge of claim 4, wherein: The connecting cylinder is in a linear cylindrical structure, the two end edges of the connecting cylinder are parallel to each other, and the connecting rib extends along the outer sidewall of the connecting cylinder, wherein the extension direction of the connecting rib is always arranged in an inclined and staggered manner with the plane where the two end edges of the connecting cylinder are located.

6. The multi-port connection stable filter cartridge of claim 4, wherein: The connecting cylinder is in a circular cylindrical structure.

7. The multi-port connection stable filter cartridge of claim 4, wherein: The connecting cylinder is in a square cylindrical structure.

8. The multi-port connection stabilizing filter cartridge of claim 6 or 7, wherein: In the axial direction perpendicular to the end face where the two end edges of the connecting cylinder are located, the connecting rib is formed with at least two connecting points in contact with the inner ring of the pleated filter cartridge.

9. The multi-port connection stable filter cartridge of claim 2, wherein: The end cover is in a cross-sectional shape structure, and the end face of the end cover towards the connecting cylinder is formed with an accommodation groove for accommodating the glue filling layer and the end part of the connecting cylinder.

10. The multi-port connection stable filter cartridge of claim 9, wherein: The middle position of the accommodation groove is protrusively provided with a limiting boss for limiting the connecting cylinder.

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