Anti-blocking filter element cover

Abstract

The anti-blocking filter element cover comprises an annular folded wave filter element, an inner cover body and an outer cover body, the inner cover body comprises a supporting ring, inner supporting bodies are evenly fixed to the outer wall of the supporting ring, the inner supporting bodies are circumferentially distributed around the outer wall of the supporting ring, the outer cover body comprises a cover body, an inserting portion is arranged in the center of the cover body, and the inserting portion is arranged on the outer wall of the cover body. The inserting part is connected with the interior of the supporting ring in an inserting mode, outer supporting bodies are evenly fixed to the inner wall of the cover body, the outer supporting bodies are circumferentially distributed around the center line of the cover body, and a ventilation opening is formed in the position, located in the center of the inserting part, of the cover body; the outer wall of the support ring and the inner wall of the cover body are respectively contacted with the end points of an inner folded angle and an outer folded angle of the annular folded wave filter element, the inner support body and the outer support body are respectively attached to the inner folded surface and the outer folded surface of the annular folded wave filter element, and the inner support body of the outer wall of the support ring and the outer support body of the inner wall of the cover body are arranged in a staggered manner.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal filter accessories, and in particular relates to an anti-blocking filter element cover. Background Art

[0002] In the current market, the design of the filter element of the straight-cylinder dust filter generally tends to adopt an annular pleated filter element structure, which is also called a pleated filter element or a corrugated filter element. The manufacturing process of this filter element is to press the metal fiber sintered felt or metal woven wire mesh into a wavy texture through a clapper-type pleating bending machine. However, in the actual application of dust filters, the end of the pleated filter element installed often has the problem of poor sealing. This is mainly because the end sealing form of the pleated filter element usually adopts the method of directly abutting the sealing pad. When the folding of the filter element is faced with a large wind pressure, the folding of the filter element is prone to occur, which leads to a loose abutment between the end of the filter element and the sealing pad. The airflow carrying dust has the opportunity to enter the interior of the filter from here. In order to ensure that the filtering accuracy meets the standard, a small filter screen is usually added at the vent of the filter cover. However, after using this additional filter screen for a period of time, it is very easy to affect its filtering effect due to clogging. Therefore, the utility model proposes an anti-blocking filter element cover to avoid the problem of loose sealing and poor sealing at the end of the pleated filter element, improve the filtering accuracy, and make it unnecessary to set a filter screen at the central vent to avoid blockage.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kind of anti-blocking filter element cover, comprising an annular pleated filter element, an inner cover and an outer cover, the inner cover comprising a support ring, the outer wall of the support ring is evenly fixed with inner supports, the inner supports are arranged in a circular distribution around the outer wall of the support ring, the outer cover comprises a cover body, a plug-in portion is arranged at the center of the cover body, the plug-in portion and the inside of the support ring are connected by plug-in, the inner wall of the cover body is evenly fixed with outer supports, the outer supports are arranged in a circular distribution around the center line of the cover body, and the cover body is provided with a vent at the center of the plug-in portion.

[0005] As a preferred technical solution of the utility model, the outer wall of the support ring and the inner wall of the cover body are respectively in contact with the inner corner and the outer corner end points of the annular pleated filter element.

[0006] As a preferred technical solution of the utility model, the inner support body and the outer support body are respectively arranged to fit the inner folded surface and the outer folded surface of the annular folded filter element.

[0007] As a preferred technical solution of the utility model, the inner wall of the support ring is evenly provided with positioning grooves, the outer wall of the cover body located at the plug-in portion is evenly provided with positioning rods, and the positioning grooves and the positioning rods are connected by plugging.

[0008] As a preferred technical solution of the utility model, a sealing gasket is fixed between adjacent positioning grooves on the inner wall of the support ring.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model designs the filter element cover as a split structure, which is convenient for disassembly and assembly, while making the inner support body and the outer support body respectively abut and squeeze at the inner and outer corners of the pleated filter element, thereby avoiding the problem of loose sealing and poor sealing at the ends of the pleated filter element, improving the filtering accuracy, and no filter screen is set at the central vent to avoid blockage; at the same time, the folds of the pleated filter element are positioned to ensure the ventilation and filtration performance of the pleated filter element during normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 It is a structural schematic diagram of the outer cover in the utility model;

[0012] Figure 2 It is a cross-sectional view of the cover body in the utility model;

[0013] Figure 3 It is a bottom view of the annular pleated filter element and the inner cover in the utility model;

[0014] Figure 4 This is a bottom view of the annular pleated filter element, inner cover and outer cover of the utility model after installation.

[0015] In the figure: 1. annular pleated filter element; 2. support ring; 3. inner support body; 4. cover body; 5. plug-in part; 6. outer support body; 7. positioning groove; 8. positioning rod; 9. vent; 10. sealing gasket. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example

[0018] See also Figure 1-4 The utility model provides the following technical solutions: an anti-blocking filter element cover, comprising an annular pleated filter element 1, an inner cover and an outer cover, wherein the inner cover portion is mainly composed of a support ring 2, and the outer wall of the support ring 2 is evenly arranged with inner supports 3, and these inner supports 3 are distributed in a circumferential direction with the support ring 2 as the center, ensuring that they can abut against the inner side of the inner folded corners of the folded annular pleated filter element 1 one by one. The outer cover portion includes a cover body 4, and the outer wall of the support ring 2 and the inner wall of the cover body 4 are in close contact with the inner and outer folded corner endpoints of the annular pleated filter element 1, respectively, to ensure the stable installation of the annular pleated filter element 1. At the center position of the cover body 4, a plug-in portion 5 is provided, and the plug-in portion 5 is connected to the inside of the support ring 2 by plugging, ensuring the tight fitting installation of the inner cover and the outer cover. At the same time, the inner wall of the cover body 4 is evenly distributed with external support bodies 6, which fit tightly with the outer folded surface of the annular pleated filter element 1, and the filter element end is sealed by squeezing the two sides of the folded corners of the end of the annular pleated filter element 1 between the internal support body 3 and the external support body 6, while effectively supporting and fixing the folds of the annular pleated filter element 1 to separate them evenly; in addition, the internal support body 3 and the external support body 6 are both made of rubber material, which has good elasticity and sealing properties, thereby ensuring the sealing performance of the filter element cover.

[0019] A vent 9 is also provided at the center of the plug-in portion 5 of the cover body 4. The design of the vent 9 ensures the ventilation performance of the filter element cover during normal operation, while ensuring the sealing of the filter element end of the equipment, avoiding the problem of blockage caused by setting a filter screen at the vent 9.

[0020] In order to facilitate the positioning of the cover body 4 during installation, in this embodiment, as a preferred technical solution of the utility model, positioning grooves 7 are evenly provided on the inner wall of the support ring 2, and positioning rods 8 are evenly provided on the outer wall of the cover body 4 located at the plug-in part 5, and the positioning grooves 7 and the positioning rods 8 are connected by plugging.

[0021] In order to ensure the sealing of the vent 9 , in this embodiment, as a preferred technical solution of the utility model, a sealing gasket 10 is fixed between adjacent positioning grooves 7 on the inner wall of the support ring 2 .

[0022] To summarize, with the aid of the above-mentioned technical solution of the utility model, when in use, the triangular inner support body 3 on the outer wall of the support ring 2 and the outer support body 6 on the inner wall of the cover body 4 are respectively squeezed on the inner and outer folded surfaces of the annular pleated filter element 1 to seal both ends of the filter element, thereby ensuring the sealing of the end of the annular pleated filter element 1, and avoiding the problem of frequent clogging of the filter screen caused by setting a filter screen at the internal vent 9.

[0023] Finally, it should be noted that in the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0024] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anti-blocking filter element cover, comprising an annular pleated filter element (1), an inner cover and an outer cover, characterized in that: The inner cover comprises a support ring (2), the outer wall of the support ring (2) is evenly fixed with inner support bodies (3), the inner support bodies (3) are arranged in a circumferential distribution around the outer wall of the support ring (2), the outer cover comprises a cover body (4), a plug-in portion (5) is arranged at the center of the cover body (4), the plug-in portion (5) and the inside of the support ring (2) are connected by plugging, the inner wall of the cover body (4) is evenly fixed with outer support bodies (6), the outer support bodies (6) are arranged in a circumferential distribution around the center line of the cover body (4), and the cover body (4) is provided with a ventilation hole (9) at the center of the plug-in portion (5).

2. The anti-blocking filter element cover according to claim 1, characterized in that: The outer wall of the support ring (2) and the inner wall of the cover body (4) are in contact with the inner corner and outer corner end points of the annular folded filter element (1) respectively.

3. The anti-blocking filter element cover according to claim 2, characterized in that: The inner support body (3) and the outer support body (6) are respectively arranged to fit the inner folded surface and the outer folded surface of the annular folded filter element (1).

4. The anti-blocking filter element cover according to claim 1, characterized in that: The inner wall of the support ring (2) is evenly provided with positioning grooves (7), and the outer wall of the cover body (4) located at the plug-in portion (5) is evenly provided with positioning rods (8), and the positioning grooves (7) and the positioning rods (8) are connected by plugging.

5. The anti-blocking filter element cover according to claim 4, characterized in that: A sealing gasket (10) is fixed between adjacent positioning grooves (7) on the inner wall of the support ring (2).

Images