Filter element port sealing structure and filter element

Abstract

The utility model belongs to the technical field of filter elements, and discloses a filter element port sealing structure and a filter element. The filter element port sealing structure comprises an end cover and a connecting piece. The end cover is provided with a first mounting groove, the end cover is mounted at the first end of the filter element main body through the first mounting groove so as to seal the first port of the filter element main body, and sealing colloids are arranged between the top wall of the first mounting groove and the end surface of the filter element main body and between the peripheral wall of the first mounting groove and the peripheral surface of the filter element main body; a plurality of glue grooves are formed in the top wall of the first mounting groove; one end of the connecting piece is connected with the second end of the filter element main body, and the other end is connected with the base. The filter element port sealing structure can still ensure reliable sealing performance in a high-flow pressure working environment, is simple in structure, reduces cost and is convenient to assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter core technical field especially, relate to a filter core port sealing structure and filter core. BACKGROUND

[0002] In the aviation kerosene filtering system, along with the aircraft to the fuel cleanliness and supply efficiency requirement's unceasing enhancement, filter needs to bear greater flow pressure, under the high flow pressure operating environment, filter core's port is easy to appear to blow because of pressure concentration, leads to leakage, this not only has affected the filtering efficiency, can lead to fuel pollution, even influence flight safety.

[0003] In order to improve the sealing stability of filter core port under high flow pressure condition, generally adopt the sealing mode of pull rod pressure, this kind of sealing mode needs to set up pull rod to connect the upper and lower end cover of filter core, and the structure is complex, and, need to set up conical sealing pad to seal the radial clearance of pull rod, the size requirement of the outer diameter of pull rod and the inner diameter of conical sealing pad is very strict, under the condition of water hammer pressure, along the axial direction of pull rod thread segment, easy to leak, and the sealing performance is poor.

[0004] Therefore, it is urgent to propose a filter core port sealing structure and filter core to solve the above technical problems. INNOVATION CONTENT

[0005] According to one aspect of the utility model, the utility model provides a filter core port sealing structure, which can still guarantee reliable sealing performance under the working environment of high flow pressure, and the structure is simple, which reduces the cost and facilitates assembly.

[0006] To achieve this purpose, the utility model adopts the following technical scheme:

[0007] The filter core port sealing structure comprises:

[0008] The end cover has a first mounting groove, and the end cover is mounted on the first end of the filter core body through the first mounting groove to seal the first port of the filter core body, a top wall of the first mounting groove and an end face of the filter core body are provided with a sealing glue body, and a peripheral wall of the first mounting groove and an outer peripheral surface of the filter core body are provided with a sealing glue body, and a plurality of glue grooves are arranged on the top wall of the first mounting groove.

[0009] The connecting piece is connected to the second end of the filter core body at one end and is connected to the base at the other end.

[0010] Optionally, the glue groove is an annular glue groove, and a plurality of annular glue grooves are concentrically and spacedly arranged.

[0011] In all the annular glue grooves, the cross sections of the junctions of two adjacent annular glue grooves are in "V" shape; or, in the annular glue grooves close to the peripheral wall of the first mounting groove, the cross sections of the junctions of two adjacent annular glue grooves are in "V" shape.

[0012] Optionally, a middle part of the first mounting groove is provided with an annular flange, and an outer peripheral wall of the annular flange abuts against an inner wall of the central hole of the filter core body.

[0013] Optionally, a handle is arranged on the end face of the end cover away from the filter core body.

[0014] Optionally, a connecting block is arranged on the middle part of the end face of the end cover away from the filter core body, a first threaded hole is arranged on the connecting block, the handle is a screw rod, and the screw rod is screwed into the first threaded hole.

[0015] Optionally, a plurality of first reinforcing ribs are arranged on the end cover along the circumferential direction of the connecting block; and / or, a reinforcing block opposite to the connecting block is arranged on the top wall of the first mounting groove, and a plurality of second reinforcing ribs are arranged on the reinforcing block in the circumferential direction.

[0016] Optionally, one end of the connecting piece is provided with a second mounting groove, the connecting piece is bonded to the second end of the filter core body through the second mounting groove, the other end of the connecting piece is provided with a second threaded hole in communication with the second mounting groove, a connecting part is arranged on the base, an external thread is arranged on the connecting part, and the connecting part is screwed into the second threaded hole through the external thread.

[0017] Optionally, the connecting piece comprises a connecting plate provided with a through hole in a middle part, a first plate face of the connecting plate is provided with a flange in the circumferential direction, the flange and the connecting plate enclose the second mounting groove, a connecting barrel is arranged on a second plate face of the connecting plate, an internal thread is arranged in the connecting barrel, and a plurality of third reinforcing ribs are arranged between an outer peripheral wall of the connecting barrel and the second plate face of the connecting plate along the circumferential direction of the connecting barrel.

[0018] Optionally, a middle part of the top wall of the first mounting groove is provided with a reinforcing block, a third threaded hole is arranged on the reinforcing block, one end of the pull rod is threadedly connected to the third threaded hole, and the other end of the pull rod is threadedly connected to a fourth threaded hole on the base.

[0019] According to another aspect of the utility model, the utility model also provides a filter core which comprises a filter core body and the filter core port sealing structure of any one of the above technical solutions, and the filter core port sealing structure is used for the filter core body.

[0020] The utility model has the advantages of:

[0021] The utility model provides a filter core port sealing structure, including end cover and connecting piece. End cover is bonded in the first end of filter core main part through first installation groove on it, to seal the first port of filter core main part, connecting piece installs base in the second end of filter core main part. Such setting, compared with the scheme of connecting base and end cover through pull rod in prior art, spares pull rod and conical sealing washer of sealing pull rod, both simplifies the structure, assembles conveniently, avoids the problem of pull rod threaded section leakage, improves the sealing performance to filter core main part.

[0022] And, a plurality of glue grooves are arranged on the top wall of the first installation groove, the contact area of the end cover and the sealing glue is increased, and the bonding strength between the end cover and the filter core main body is further improved, so that the end cover can still maintain reliable sealing performance under a high-flow pressure working environment.

[0023] The utility model discloses still provide a filter core, including filter core main body and above-mentioned filter core port sealing structure. The filter core adopts the filter core port sealing structure, and the structure is simple, and the sealing performance is superior to the filter core of prior pull rod scheme. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the utility model embodiment, the following will briefly introduce the drawing needed to be used in the utility model embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for the ordinary skilled person in the art, under the premise of not paying creative labor, other drawings can also be obtained according to the content of the utility model embodiment and these drawings.

[0025] Figure 1 It is the assembly drawing of filter core port sealing structure and filter core main body provided by the utility model embodiment;

[0026] Figure 2 It is the structure diagram of end cover under one visual angle provided by the utility model embodiment;

[0027] Figure 3 It is the partial view of the sectional view of end cover provided by the utility model embodiment;

[0028] Figure 4 It is the structure schematic diagram of end cover under another visual angle provided by the utility model embodiment;

[0029] Figure 5 It is the structure schematic diagram of connecting piece under one visual angle provided by the utility model embodiment;

[0030] Figure 6 It is the structure schematic diagram of connecting piece under another visual angle provided by the utility model embodiment.

[0031] In the drawing:

[0032] 10. Filter element body;

[0033] 100, end cap; 110, first mounting groove; 120, glue groove; 130, annular flange; 140, handle; 150, connecting block; 160, first reinforcing rib; 170, reinforcing block; 171, third threaded hole; 180, second reinforcing rib;

[0034] 200, base;

[0035] 300, connecting part; 310, connecting plate; 311, through hole; 312, annular groove; 320, flange; 321, second mounting groove; 330, connecting tube; 331, second threaded hole; 332, internal thread; 340, third reinforcing rib. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] Embodiment one

[0041] The present embodiment provides a filter core port sealing structure which can still ensure reliable sealing performance under the working environment of high flow pressure, and has simple structure, which not only reduces the cost, but also facilitates assembly.

[0042] As shown in Figure 1 and Figure 2 , the filter core port sealing structure comprises an end cover 100 and a connecting piece 300.

[0043] Among them, the end cover 100 has a first mounting groove 110, and the end cover 100 is mounted on the first end of the filter core body 10 through the first mounting groove 110 to seal the first port of the filter core body 10. In the present embodiment, the first end of the filter core body 10 is bonded in the first mounting groove 110, specifically, a sealing glue is provided between the top wall of the first mounting groove 110 and the end face of the filter core body 10, and between the peripheral wall of the first mounting groove 110 and the outer peripheral surface of the filter core body 10, and a plurality of glue grooves 120 are provided on the top wall of the first mounting groove 110, by providing a plurality of glue grooves 120, the contact area between the end cover 100 and the sealing glue can be increased, and the connection strength between the end cover 100 and the filter core body 10 can be improved.

[0044] One end of the connecting piece 300 is connected with the second end of the filter core body 10, and the other end is used to be connected with the base 200, so as to install the base 200 on the second end of the filter core body 10. The fluid to be filtered enters the filter core body 10 through the base 200 and the second port of the filter core body 10.

[0045] When the end cover 100 and the filter core body 10 are assembled, the sealing glue is applied on the top wall of the first mounting groove 110, and then the end cover 100 is buckled on the first end of the filter core body 10. In the process of pressing the end cover 100, the sealing glue will be extruded, part of the sealing glue will enter the glue groove 120 under the action of the extrusion force, and the other part will overflow between the peripheral wall of the first mounting groove 110 and the outer peripheral surface of the filter core body 10. After the sealing glue solidifies, the assembly of the end cover 100 is completed.

[0046] Compared with the prior art of connecting the base 200 and the end cover 100 through the pull rod, the filter core port sealing structure provided by the embodiment saves the pull rod and the conical sealing gasket for sealing the pull rod, simplifies the structure, facilitates assembly, avoids the problem of leakage of the threaded section of the pull rod, and improves the sealing performance of the filter core body 10. In addition, a plurality of glue grooves 120 are arranged on the top wall of the first mounting groove 110, the contact area of the end cover 100 and the sealing glue is increased, and the bonding strength between the end cover 100 and the filter core body 10 is further improved, so that the end cover 100 can still maintain reliable sealing performance in a high-flow pressure working environment.

[0047] Optionally, continuing to refer to Figure 2 , the glue groove 120 is an annular glue groove, and a plurality of annular glue grooves are arranged concentrically and at intervals. In this way, the processing is facilitated, and the connection strength between the end cover 100 and the filter core body 10 is improved.

[0048] Further, in one possible embodiment, in all annular glue grooves, the cross section of the connection between adjacent two annular glue grooves is in the shape of “V”. In this way, the connection between the two annular glue grooves can be easily inserted into the sealing glue and tightly bonded in the sealing glue, which is conducive to improving the bonding strength between the end cover 100 and the filter core body 10. In another possible embodiment, the cross section of the connection between adjacent two annular glue grooves in a part of the annular glue grooves close to the peripheral wall of the first mounting groove 110 can be in the shape of “V”.

[0049] As shown in Figure 3 , in the embodiment, in a part of the annular glue grooves, the cross section of the connection between adjacent two annular glue grooves is in the shape of “N”, and in another part of the annular glue grooves, the cross section of the connection between adjacent two annular glue grooves is in the shape of “V”. In addition, the annular glue groove with the cross section of the connection in the shape of “V” is arranged close to the peripheral wall of the first mounting groove 110.

[0050] Further, continuing to refer to Figure 2 , the middle part of the first mounting groove 110 is provided with an annular flange 130, and the outer peripheral wall of the annular flange 130 abuts against the inner wall of the central hole of the filter core body 10. By arranging the annular flange 130, a certain guiding effect can be achieved for the installation of the end cover 100.

[0051] Further, as shown in Figure 4 , the end cover 100 is provided with a handle 140 on the end face away from the filter core body 10. Since the filter core body 10 cannot be touched during the process of carrying the filter core, and the end cover 100 and the base 200 are small and difficult to hold, by arranging the handle 140, convenience can be provided for the staff to carry the filter core.

[0052] Optionally, continuing to refer to Figure 1In the embodiment, the end cover 100 is provided with a connecting block 150 at the middle of the end face of the filter element main body 10, the connecting block 150 is provided with a first threaded hole, the handle 140 is a screw rod, and the screw rod is screwed in the first threaded hole. The handle 140 has a simple structure and is convenient to process.

[0053] Further, in a possible embodiment, the screw rod can be integrally formed with the end cover 100 during injection molding, that is, the screw rod is embedded in the end cover 100 during injection molding of the end cover 100 to form the first threaded hole. In another possible embodiment, the screw rod can also be a split structure with the end cover 100 and is assembled in the first threaded hole by screwing.

[0054] Further, continuing to refer to Figure 2 and Figure 4 , in order to improve the structural strength of the end cover 100 and avoid damage caused by excessive deformation of the end cover 100 during the process of carrying the filter element by the handle 140. In a possible embodiment, a plurality of first reinforcing ribs 160 can be provided on the end cover 100 along the circumference of the connecting block 150 to improve the structural strength of the end cover 100. In another possible embodiment, a reinforcing block 170 opposite to the connecting block 150 can be provided on the top wall of the first mounting groove 110, and a plurality of second reinforcing ribs 180 can be provided on the reinforcing block 170 along the circumference to improve the structural strength of the end cover 100. Of course, in other embodiments, a plurality of first reinforcing ribs 160 can be provided on the end cover 100 along the circumference of the connecting block 150, and a reinforcing block 170 opposite to the connecting block 150 can be provided on the top wall of the first mounting groove 110, and a plurality of second reinforcing ribs 180 can be provided on the reinforcing block 170 along the circumference.

[0055] In the embodiment, the reinforcing block 170 is arranged at the middle of the annular flange 130, one end of the second reinforcing rib 180 is connected with the reinforcing block 170, and the other end is connected with the inner circumferential wall of the annular flange 130.

[0056] Further, as shown in Figure 5 and Figure 6 , one end of the connecting piece 300 is provided with a second mounting groove 321, and the connecting piece 300 is bonded to the second end of the filter element main body 10 through the second mounting groove 321. The other end of the connecting piece 300 is provided with a second threaded hole 331 in communication with the second mounting groove 321, and the base 200 is provided with a connecting part, the connecting part is provided with an external thread, and the connecting part is screwed into the second threaded hole 331 through the external thread. The connection between the base 200 and the second end of the filter element main body 10 is realized through the connecting piece 300, which has a simple structure and is convenient for assembly of the base 200. Moreover, the connecting piece 300 is connected with the filter element main body 10 by bonding, which has a simple connection mode and good sealing performance. The connecting piece 300 is connected with the base 200 by threaded connection, which has a simple structure, is convenient for assembly, and has good connection reliability.

[0057] Optionally, continuing to refer to Figure 5 and Figure 6 In the embodiment, the connecting piece 300 comprises a connecting plate 310 with a through hole 311 in the middle, a flange 320 is arranged on the periphery of the first plate surface of the connecting plate 310, and the flange 320 and the connecting plate 310 enclose a second mounting groove 321. A connecting cylinder 330 is arranged on the second plate surface of the connecting plate 310, and an internal thread 332 is arranged in the connecting cylinder 330, which is connected with the connecting portion of the base 200. Furthermore, a plurality of third reinforcing ribs 340 are arranged between the outer peripheral wall of the connecting cylinder 330 and the second plate surface of the connecting plate 310 along the periphery of the connecting cylinder 330. By arranging the plurality of third reinforcing ribs 340, the structural strength of the connecting cylinder 330 can be improved, and the reliability of the connection between the connecting piece 300 and the base 200 is further improved.

[0058] It is worth noting that the through hole 311 is in communication with the central hole of the filter core body 10, and the fluid to be filtered enters the through hole 311 of the connecting piece 300 from the base 200 first, and then enters the central hole of the filter core body 10.

[0059] Optionally, the shape of the third reinforcing rib 340 can be set according to actual needs. For example, a triangle or the like.

[0060] Further, continuing to refer to Figure 6 On the second plate surface of the connecting plate 310, an annular groove 312 is arranged in the connecting cylinder 330, and the annular groove 312 is used to install a sealing gasket to improve the sealing performance between the connecting piece 300 and the base 200.

[0061] Further, continuing to refer to Figure 2 In one possible embodiment, the filter core port sealing structure further comprises a pull rod (not shown in the figure), a reinforcing block 170 is arranged in the middle of the top wall of the first mounting groove 110, a third threaded hole 171 is formed in the reinforcing block 170, one end of the pull rod is threadedly connected to the third threaded hole 171, and the other end is threadedly connected to a fourth threaded hole on the base 200. By arranging the pull rod, the pressure resistance of the end cover 100 can be improved, the risk of the end cover 100 being blown out is reduced, and the end cover 100 can still reliably seal the first port of the filter core body 10 under high-flow pressure environment.

[0062] Embodiment two

[0063] The embodiment provides a filter core, which comprises a filter core body 10 and the filter core port sealing structure provided in embodiment one, and the filter core port sealing structure is used for the filter core body 10.

[0064] The filter core has the above-mentioned filter core port sealing structure, which is simple in structure, convenient to assemble, and has good sealing performance, and the sealing performance is better than that of the existing pull rod scheme.

[0065] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A filter cartridge port seal structure, characterized by, The utility model relates to a filter element, comprising: an end cover (100) having a first mounting groove (110) for mounting the end cover (100) to a first end of a filter element body (10) to seal a first port of the filter element body (10), a top wall of the first mounting groove (110) and a peripheral wall of the first mounting groove (110) being provided with a sealing glue body between an end face of the filter element body (10) and an outer peripheral surface of the filter element body (10), and a plurality of glue grooves (120) being provided on the top wall of the first mounting groove (110); a connecting piece (300) connected to a second end of the filter element body (10) at one end and used for connecting to a base (200) at the other end.

2. The filter cartridge port seal structure of claim 1 wherein, The glue grooves (120) are annular glue grooves, and the annular glue grooves are concentrically and spacedly arranged; in all the annular glue grooves, cross sections of connecting portions of adjacent two annular glue grooves are in a "V" shape; or in some of the annular glue grooves close to the peripheral wall of the first mounting groove (110), cross sections of connecting portions of adjacent two annular glue grooves are in a "V" shape.

3. The filter cartridge port seal structure of claim 1 wherein, A middle portion of the first mounting groove (110) is provided with an annular flange (130), and an outer peripheral wall of the annular flange (130) abuts against an inner wall of a central hole of the filter element body (10).

4. The filter cartridge port seal structure of claim 1 wherein, The end cover (100) is provided with a handle (140) away from an end face of the filter element body (10).

5. The filter cartridge port seal structure of claim 4 wherein, The end cover (100) is provided with a connecting block (150) away from a middle portion of the end face of the filter element body (10), the connecting block (150) is provided with a first threaded hole, the handle (140) is a screw rod, and the screw rod is screwed into the first threaded hole.

6. The filter cartridge port seal structure of claim 5, wherein, A plurality of first reinforcing ribs (160) are arranged on the end cover (100) along a circumferential direction of the connecting block (150); and / or a reinforcing block (170) opposite to the connecting block (150) is arranged on the top wall of the first mounting groove (110), and a plurality of second reinforcing ribs (180) are arranged on the reinforcing block (170) along a circumferential direction of the reinforcing block (170).

7. The cartridge port seal structure of any of claims 1-6, wherein, One end of the connecting piece (300) is provided with a second mounting groove (321), the connecting piece (300) is bonded to the second end of the filter element body (10) through the second mounting groove (321), the other end of the connecting piece (300) is provided with a second threaded hole (331) in communication with the second mounting groove (321), the base (200) is provided with a connecting portion, the connecting portion is provided with an external thread, and the connecting portion is screwed into the second threaded hole (331) through the external thread.

8. The filter cartridge port seal structure of claim 7, wherein, The connecting piece (300) comprises a connecting plate (310) with a through hole (311) in the middle, a flange (320) is arranged on the periphery of the first plate surface of the connecting plate (310), the flange (320) and the connecting plate (310) form the second mounting groove (321), a connecting cylinder (330) is arranged on the second plate surface of the connecting plate (310), an internal thread (332) is arranged in the connecting cylinder (330), and a plurality of third reinforcing ribs (340) are arranged between the outer peripheral wall of the connecting cylinder (330) and the second plate surface of the connecting plate (310) along the periphery of the connecting cylinder (330).

9. The filter cartridge port seal structure of claim 1 wherein, The middle part of the top wall of the first mounting groove (110) is provided with a reinforcing block (170), a third threaded hole (171) is formed in the reinforcing block (170), one end of the pull rod is threadedly connected to the third threaded hole (171), and the other end of the pull rod is threadedly connected to a fourth threaded hole on the base (200).

10. A filter cartridge, characterized by A filter cartridge (10) comprising a filter cartridge body (10) and a filter cartridge port seal structure according to any one of claims 1-9, the filter cartridge port seal structure being for the filter cartridge body (10).

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