Anti-degumming filter end cover

Abstract

The utility model discloses an anti-degumming filter end cover, and belongs to the technical field of filters. An annular glue injection groove coaxial with the end cover is formed in the inner side of the anti-degumming filter end cover, sand blasting layers are arranged on the surfaces of the two side walls and the bottom wall of the annular glue injection groove, glue hanging grooves continuously sunken towards the annular glue injection groove are formed in the side walls of the annular glue injection groove, and a plurality of glue storage grooves are formed in the bottom wall of the annular glue injection groove. The sand blasting layers are arranged on the side wall and the bottom wall of the annular glue injection groove, the glue hanging groove is formed in the side wall, and the glue storage groove is formed in the bottom wall, so that the roughness and the bonding area of a bonding surface are increased, the adhesive force of glue on the end cover is improved, the bonding strength between the end cover and the filter element and the stress strength of the glue bonding surface are effectively improved, and the service life of the end cover is prolonged. The filter element end cover is simple in structure and good in connection firmness, degumming and loosening between the filter element end cover are well prevented, the service life of the filter is prolonged, and the market competitiveness and brand influence of products are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to an anti-adhesion filter end cap. Background Technology

[0002] An oil-gas separator filter for air compressors consists of several main parts, including a metal upper end cover, a metal lower end cover, a metal perforated mesh support frame, electrostatic conductive elements, and filter media. Its primary function is to separate and filter out micro-oil droplets and solid particles from the oil-gas mixture in the air compressor system, thereby meeting the requirements for clean air use. The structural stability of the oil-gas separator filter is crucial. Both the upper and lower metal end covers have adhesive injection grooves. Adhesive is injected into these grooves to bond and fix the upper and lower end covers to the metal perforated mesh support frame. The sealing effect of the adhesive affects the service life of the filter product. However, because the two sides of the glue injection groove of the end cap are smooth vertical baffles, the adhesion of the glue between the upper and lower end caps and the metal perforated plate mesh support frame is reduced, the bonding strength is low, and the connection is not firm enough. At the same time, since the direction of force on the filter during use is parallel to the two sides, if the bonding strength is insufficient, the glue injection groove of the end cap and the glue bonding area will be subjected to force for a long time, which will cause the bonding surface to detach and delaminate, resulting in quality problems such as loosening or even falling off of the end cap. This seriously affects the integrity and service life of the filter element product and reduces the quality of the product. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an anti-degumming filter end cap. The end cap has a simple structure and reasonable design, which can effectively improve the bonding strength between the end cap and the filter element, thereby preventing degumming and loosening between the filter element and the end cap, and extending the service life of the filter.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] An anti-adhesion filter end cap is provided on the inner side of the end cap, with an annular glue injection groove coaxial with the end cap. The two side walls and the bottom wall of the annular glue injection groove are all provided with a sandblasting layer. The side walls of the annular glue injection groove are provided with glue hanging grooves that are continuously recessed into the annular glue injection groove. The bottom wall of the annular glue injection groove is provided with a plurality of glue storage grooves.

[0006] In a preferred embodiment of this utility model, the cross-section of the glue-coating groove is a wave shape or a zigzag shape that is continuously recessed into the annular glue-injection groove.

[0007] In a preferred embodiment of this utility model, the cross-section of the glue storage tank is trapezoidal or parallelogram-shaped.

[0008] In a preferred embodiment of this utility model, the end cap includes a cap body and a positioning ring for positioning the filter element. The positioning ring is fixedly connected to the cap body, and a filter hole is provided in the middle of the cap body. The cap body includes a suspension part, a connecting part, an injection part, and a hanging part connected in sequence. The suspension part and the injection part are arranged horizontally, and the connecting part and the hanging part are arranged vertically. The positioning ring is fixedly connected to the connecting part, so that the positioning ring, the injection part, and the hanging part form the annular injection groove.

[0009] More preferably, the suspension part, connecting part, glue injection part, and glue coating part are integral structures formed by stamping.

[0010] More preferably, the positioning ring is riveted to the connecting part.

[0011] In a preferred embodiment of the present invention, the end cap is provided with a vertically arranged flange, and the center of the end cap is provided with an upwardly protruding positioning boss; the annular glue injection groove is formed between the flange and the positioning boss, and the glue hanging groove is provided on the inner side wall of the flange.

[0012] More preferably, the flange and the positioning boss are integral structures formed by stamping.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention increases the roughness and bonding area of ​​the bonding surface by setting a sandblasting layer on the side wall and bottom wall of the annular glue injection groove, setting a glue hanging groove on the side wall, and opening a glue storage groove on the bottom wall. This improves the adhesion of the glue to the end cap, effectively increasing the bonding strength between the end cap and the filter element and the stress strength of the glue bonding surface. Compared with the traditional straight-edge end cap, the glue bonding strength is increased by more than 30%, thus effectively preventing the filter element end cap from delaminating and loosening, improving the connection firmness of the filter end cap, extending the service life of the filter (to more than 4000 hours), and to a certain extent improving the product's market competitiveness and brand influence. Attached Figure Description

[0015] Figure 1 This is a cross-sectional schematic diagram of the anti-derivative filter end cap according to Embodiment 1 of this utility model.

[0016] Figure 2 This is a cross-sectional schematic diagram of the anti-derivative filter end cap according to Embodiment 2 of this utility model.

[0017] The following are the reference numerals: 1. Annular glue injection groove; 2. Sandblasted layer; 3. Glue hanging groove; 4. Glue storage groove; 5. Cover; 51. Suspension part; 52. Connecting part; 53. Glue injection part; 54. Glue hanging part; 6. Positioning ring; 7. Flanged edge; 8. Positioning boss; 9. Connecting plate. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] like Figure 1 or Figure 2 As shown, the anti-detachment filter end cap provided by this utility model has an annular glue injection groove 1 coaxial with the end cap on its inner side. The two side walls and bottom wall of the annular glue injection groove 1 are coated with a sandblasted layer 2 through surface sandblasting treatment. By increasing the surface roughness of the annular glue injection groove 1, the bonding strength between the glue and the end cap is enhanced, making it less likely for the adhesive surface between the glue and the end cap to separate in the direction of force, thus avoiding the quality risks caused by glue detachment. Simultaneously, the side walls of the annular glue injection groove 1 are provided with continuously recessed glue-holding grooves 3 through methods such as mold rolling. The bottom wall of the annular glue injection groove 1 is provided with several glue storage grooves 4 through methods such as machining grooves. The glue-holding grooves 3 and glue storage grooves 4 increase the bonding area between the glue and the end cap, enhance the adhesion of the glue to the end cap, and further improve the bonding strength between the glue and the end cap. As can be seen, this utility model has a simple structure and reasonable design, which can effectively improve the bonding strength between the end cap and the filter element, improve the connection firmness of the filter end cap, and thus effectively prevent the filter element end cap from delaminating or loosening, extend the service life of the filter, and to a certain extent enhance the product's market competitiveness and brand influence.

[0020] In some embodiments, the cross-section of the adhesive tray 3 is a wavy or zigzag shape that continuously indents towards the annular adhesive injection groove 1. The wavy or zigzag-shaped adhesive tray 3 increases the bonding area between the adhesive and the end cap, ensuring the adhesive remains attached to the tray 3. Simultaneously, the adhesive tray 3 of the end cap can distribute some of the force in the direction of stress, thereby reducing the stress on the adhesive and preventing bond detachment between the adhesive and the end cap due to prolonged high-temperature and high-pressure use of the filter, effectively improving the overall service life of the filter product. Similarly, the cross-section of the adhesive storage tank 4 is trapezoidal or parallelogram-shaped, which increases the bonding area and enhances the end cap's ability to hold the adhesive, thereby improving the bonding strength between the adhesive and the end cap.

[0021] Example 1

[0022] The anti-derivative filter end cap provided in this embodiment is an upper end cap, which is the upper flange of the oil-gas separator filter. It is used to suspend the filter on the oil-gas tank of the machine during installation and also serves a sealing function. Figure 1As shown, the upper end cap includes a cap body 5 with a filter hole in the middle and a positioning ring 6 for positioning the filter element. The positioning ring 6 is fixedly connected to the cap body 5, and an annular glue injection groove 1 is formed between the positioning ring 6 and the cap body 5. Specifically, the cap body 5 includes a suspension part 51, a connecting part 52, a glue injection part 53, and a glue hanging part 54 connected in sequence. The suspension part 51 and the glue injection part 53 are both horizontally arranged, while the connecting part 52 and the glue hanging part 54 are both vertically arranged. Preferably, the suspension part 51, the connecting part 52, the glue injection part 53, and the glue hanging part 54 are integral structures formed by stamping. The positioning ring 6 is fixedly connected to the connecting part 52 by welding, riveting, or other methods, so that an annular glue injection groove 1 coaxial with the end cap is formed between the positioning ring 6, the glue injection part 53, and the glue hanging part 54. Preferably, the positioning ring 6 is riveted to the connecting part 52. The inner walls of the positioning ring 6 and the inner walls of the glue-hanging part 54 are the two side walls of the annular glue-injection groove 1, and the bottom wall of the glue-injection part 53 is the bottom wall of the annular glue-injection groove 1. A sandblasted layer 2 is formed on the two side walls and the bottom wall of the annular glue-injection groove 1 through surface sandblasting treatment. By increasing the surface roughness of the annular glue-injection groove 1, the bonding strength between the glue and the end cap is enhanced, making it less likely for the adhesive surface between the glue and the end cap to separate in the direction of force, thus avoiding the quality risk caused by glue delamination. Simultaneously, a wavy glue-hanging groove 3 with a radius of 3mm is continuously recessed into the annular glue-hanging groove 3 on the side wall of the annular glue-injection groove 1 through mold rolling. Several glue storage grooves 4 are formed on the bottom wall of the annular glue-injection groove 1 through machining or other methods. The glue-hanging groove 3 and the glue storage grooves 4 increase the bonding area between the glue and the end cap, enhance the adhesion of the glue on the end cap, and further improve the bonding strength between the glue and the end cap.

[0023] Example 2

[0024] like Figure 2As shown, the anti-derailment filter end cap provided in this embodiment is a lower end cap, which seals the lower end of the oil-gas separator filter and also functions as an oil collection groove. The lower end cap has a vertically arranged flange 7 on its edge, and a locating boss 8 protruding upwards at the center of the lower end cap. The center of the locating boss 8 is recessed downwards to form an oil collection groove. Filter media and a support frame are bonded between the upper and lower end caps. The lubricating oil separated by the filter media is collected in the oil collection groove at the center of the lower end cap and subsequently sucked away by the oil return pipe. The flange 7 is connected to the locating boss 8 via a connecting plate 9. Preferably, the flange 7, connecting plate 9, and locating boss 8 are an integral structure formed by stamping. An annular glue injection groove 1, coaxial with the lower end cap, is formed between the flange 7 and the locating boss 8; that is, the inner sidewall of the flange 7 and the sidewall of the locating boss 8 form the sidewall of the annular glue injection groove 1, and the top wall of the connecting plate 9 forms the bottom wall of the annular glue injection groove 1. The two side walls and bottom wall of the annular glue injection groove 1 are coated with a sandblasted layer 2 through surface sandblasting. By increasing the surface roughness of the annular glue injection groove 1, the bonding strength between the glue and the end cap is enhanced, making it less likely for the adhesive surface between the glue and the end cap to separate in the direction of force, thus avoiding the quality risks caused by glue delamination. At the same time, the side walls of the annular glue injection groove 1 are formed by rolling with a mold, creating a wavy adhesive groove 3 with a radius of 3mm that is continuously recessed towards the annular adhesive groove 3. The bottom wall of the annular glue injection groove 1 is provided with several glue storage grooves 4 by means of machining grooves, etc. The setting of adhesive grooves 3 and glue storage grooves 4 can increase the bonding area between the glue and the end cap, enhance the adhesion of the glue on the end cap, and further improve the bonding strength between the glue and the end cap.

[0025] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An anti-derivative filter end cap, characterized in that: The inner side of the end cap is provided with an annular glue injection groove coaxial with the end cap. The two side walls and the bottom wall of the annular glue injection groove are provided with a sandblasting layer. The side walls of the annular glue injection groove are provided with glue hanging grooves that are continuously recessed into the annular glue injection groove. The bottom wall of the annular glue injection groove is provided with several glue storage grooves.

2. The anti-derivative filter end cap according to claim 1, characterized in that: The cross-section of the glue-coating groove is a wave shape or a zigzag shape that is continuously concave towards the annular glue-injection groove.

3. The anti-derivative filter end cap according to claim 1 or 2, characterized in that: The cross-section of the glue storage tank is trapezoidal or parallelogram-shaped.

4. The anti-derivative filter end cap according to claim 3, characterized in that: The end cap includes a cover body and a positioning ring for positioning the filter element. The positioning ring is fixedly connected to the cover body, and a filter hole is provided in the middle of the cover body. The cover body includes a suspension part, a connecting part, a glue injection part, and a glue hanging part connected in sequence. The suspension part and the glue injection part are arranged horizontally, and the connecting part and the glue hanging part are arranged vertically. The positioning ring is fixedly connected to the connecting part, so that the positioning ring, the glue injection part, and the glue hanging part form the annular glue injection groove.

5. The anti-derivative filter end cap according to claim 4, characterized in that: The suspension part, connecting part, glue injection part, and glue coating part are integral structures formed by stamping.

6. The anti-derivative filter end cap according to claim 4, characterized in that: The positioning ring is riveted to the connecting part.

7. The anti-derivative filter end cap according to claim 3, characterized in that: The end cap is provided with a vertically arranged flange, and the center of the end cap is provided with an upwardly protruding positioning boss; the annular glue injection groove is formed between the flange and the positioning boss, and the glue hanging groove is provided on the inner side wall of the flange.

8. The anti-derivative filter end cap according to claim 7, characterized in that: The flange and positioning boss are integral structures formed by stamping.

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