CN211159300U

CN211159300U - Filter element

Info

Publication number: CN211159300U
Application number: CN201921673916.8U
Authority: CN
Inventors: 贾建东; 张超; 柯文静
Original assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Current assignee: Hangzhou Cobetter Filtration Equipment Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-08-04
Anticipated expiration: 2029-10-08

Abstract

The utility model provides a pair of filter element, it includes that filter membrane and sealed first end cover that is fixed in the first end of filter membrane and the second end cover of second end, the filter membrane forms to the hollow circular cylinder who has inside fluid passage, first end cover have with the interface of the inside fluid passage intercommunication of filter membrane, this interface is including the annular seal wall that extends dorsad filter membrane direction, the periphery of annular seal wall has a plurality of lugs, forms the mounting groove between lug and the annular seal wall. The presence of the mounting slot makes positioning easier when the filter cartridge is installed. After the filter core installation is accomplished, a plurality of lugs that are located the periphery of the annular seal wall of interface support the periphery that leans on the inner tube to extrude the inner tube towards the direction of the annular seal wall of interface, thereby the annular seal wall of interface and lug firmly block the inner tube of base together, make the sealing connection between filter core and base more firm, even be in the operating mode of big fluid flow, the rocking of filter core can not appear yet, thereby avoid damaging the interface of filter core and the emergence of fluid leakage.

Description

Filter element

Technical Field

The utility model relates to a filter technical field, especially a filter core.

Background

Conventional filter elements generally include a central core, a housing, a filter membrane disposed therebetween, and end caps secured to opposite ends of the filter element, one of the end caps being liquid-tight and the other end cap having a port communicating with the internal flow passage of the central core. This filter core forms sealing connection with the inner tube of the base of filter only through the sealing connection structure on its interface, and the entry of filter is established in certain one side of filter core usually, when this filter core was applied to the operating mode of big fluid flow, the filter core can receive the strong impact effect of fluid to its unilateral that produces, the filter core can be followed the flow direction of fluid or rocked with the opposite direction of fluid flow direction, if rock the frequency too high, or the range of rocking is too big, very easily harm the interface of filter core to lead to leaking.

Therefore, the fixed connection effect of the base of the filter element and the filter needs to be improved, and the problem of shaking of the filter element under the working condition of large fluid flow is solved, so that the interface of the filter element is prevented from being damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose that will reach is to solve current filter core under the operating mode of big fluid flow, the problem of rocking about appearing to a new filter core is provided. The utility model provides a behind the base installation adaptation of filter core and filter, the problem of rocking about can not appearing to can avoid damaging the interface of filter core, stop the emergence of leaking, and prolong the life of filter core.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a filter element comprises a filter membrane, a first end cover and a second end cover, wherein the first end cover is hermetically fixed at the first end of the filter membrane, the second end cover is fixed at the second end of the filter membrane, the filter membrane is formed into a hollow cylinder with an internal fluid channel, the first end cover is provided with a port communicated with the internal fluid channel of the filter membrane, the port comprises an annular sealing wall extending in a direction opposite to the direction of the filter membrane, the periphery of the annular sealing wall is provided with a plurality of convex blocks, and a mounting groove is formed between each convex block and the annular sealing wall.

The existing filter element is only in sealing connection with a base of the filter through a sealing connection structure on an interface of the existing filter element, an inlet of the filter element is usually arranged on one side of the filter element, when the filter element is applied to a working condition with large fluid flow, the filter element can be subjected to strong impact action of fluid on one side of the filter element, the filter element can shake along the flowing direction of the fluid or the direction opposite to the flowing direction of the fluid, if the shaking frequency is too high, or the shaking amplitude is too large, the interface of the filter element is easily damaged, and accordingly leakage is caused.

The utility model provides a filter core, the interface of its first end cover includes the annular seal wall that extends in the filter membrane direction dorsad to the periphery of annular seal wall has a plurality of lugs, forms the mounting groove between lug and the annular seal wall. When the filter element is installed, the installation groove between the convex block and the annular sealing wall of the interface is aligned to the inner cylinder of the base and the filter element is pressed downwards until the end part of the inner cylinder abuts against the bottom surface of the installation groove, namely the surface of the first end cover, and then the installation of the filter element can be completed. The existence of mounting groove makes the location when the filter core installation easier, and the installation is more convenient. After the filter core installation is accomplished, a plurality of lugs that are located the periphery of annular seal wall support and lean on the periphery of inner tube to extrude the inner tube towards the direction of the annular seal wall of interface, thereby the annular seal wall of interface and lug firmly block the inner tube of base together, make the sealing connection between filter core and base more firm, even be in the operating mode of big fluid flow, rocking of filter core can not appear yet, thereby avoid haring the interface of filter core, fluid leakage can not take place yet.

Furthermore, the lug is provided with a first peripheral surface facing the periphery of the annular sealing wall of the interface and a second peripheral surface opposite to the first peripheral surface, the first peripheral surface and the second peripheral surface are connected through a top plane parallel to the surface of the first end cover, and the first peripheral surface is a cylindrical surface.

The first periphery of the lug on the first end cover is arranged to be a cylindrical surface so as to be matched with the cylindrical outer wall of the inner barrel of the base of the filter, so that the inner barrel of the base can be tightly clamped, and the filter element can be conveniently and rotatably installed.

Further, the second peripheral surface includes a first portion which is an inclined surface formed to protrude upward from the surface of the first cap, and a second portion which is a vertical surface formed vertically upward from the end of the first portion, and the vertical surface and the first peripheral surface are connected by a top plane parallel to the surface of the first cap.

The second peripheral surface of the projection includes an inclined surface and a vertical surface, the inclined surface making the projection integrally inclined toward the annular sealing wall of the interface so as to be clamped more tightly with the inner cylinder of the base, further increasing the fastening force between the filter element and the base.

Furthermore, the periphery of the lug is also provided with a circle of flanges which vertically protrude upwards from the outer edge of the first end cover to form a cylinder, and the lug is connected with the flanges at the initial position of the first part of the second peripheral surface of the lug from the first end cover.

The outer periphery of the lug is provided with a cylindrical flange, so that the strength of the lug and the first end cover is improved, and the lug and the inner cylinder are reliably fixed.

Further, the inclined surface of the first portion extends obliquely from the starting position of the first end cap toward the first circumferential surface.

The inclined surface of the first portion of the second peripheral surface of the projection is inclined in the direction of the first peripheral surface, which makes the projection inclined overall in the direction of the annular sealing wall of the mouthpiece, so as to snap the cartridge and the inner cylinder of the base of the filter more firmly.

Furthermore, a plurality of first reinforcing ribs which are integrally formed with the convex blocks are arranged on the second periphery.

The first reinforcing ribs arranged on the second circumferential surface of the lug play a role in improving the strength of the lug and ensure the reliability of the fastening effect of the lug on the inner cylinder of the base.

Furthermore, the periphery of the annular sealing wall of the interface is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the axial height of the bump is equal to or slightly less than the axial distance between the sealing groove and the first end cover.

The axial height of lug equals or slightly is less than the axial distance of seal groove and first end cap, and it ensures that the inner tube of lug and base has the extrusion fixed height of abundant height to the lug firmly blocks the inner tube of base together with the annular seal wall of interface, thereby even be applied to the filtration operating mode of big fluid flow, the filter core can not rock yet.

Furthermore, the second end cover is liquid-tight, and a plurality of second reinforcing ribs are arranged on the outer surface of the second end cover.

In order to improve the strength of the end cover in the prior art, the thickness of the end cover is increased generally, but the increase of the thickness of the end cover can cause the welding surface of the end cover to be uneven, which is not beneficial to reliable welding, and if the welding surface still has a gap. The utility model provides a second end cover through set up the second strengthening rib at its surface, improves the intensity of second end cover to can reduce the thickness of second end cover under the prerequisite of the intensity of ensureing the second end cover, with the level and smooth of assurance face of weld, and then be favorable to reliable welding.

Further, the outer surface of the second end cover is also provided with a handle.

The handle that sets up on the second end cover is convenient for install and dismantle the filter core.

Further, the number of the second reinforcing ribs is 2, the 2 second reinforcing ribs and the handle are integrally formed on the outer surface of the second end cover, and the 2 second reinforcing ribs extend radially from the center of the bottom of the handle along the direction perpendicular to the handle.

The filter cartridge is assembled or disassembled by grasping the handle on the second end cap and rotating or pressing down or pulling up the filter cartridge, so that the second end cap and the handle must be able to withstand a certain tensile force. The application provides a second end cover of filter core has 2 second strengthening ribs and the handle of an organic whole formation on, and this 2 second strengthening ribs radially extend along the direction perpendicular with the handle from the central point of the bottom of handle, 2 second strengthening ribs promptly, handle and second end cover are a whole, 2 the intensity of 2 second strengthening ribs increase handle and second end cover simultaneously, guarantee the filter core installation and dismantle the in-process, handle and second end cover are intact, and then guarantee going on smoothly of installation and dismantlement.

The utility model provides a pair of filter element, it includes that filter membrane and sealed first end cover that is fixed in the first end of filter membrane and the second end cover of second end, the filter membrane forms to the hollow circular cylinder who has inside fluid passage, first end cover have with the interface of the inside fluid passage intercommunication of filter membrane, this interface is including the annular seal wall that extends dorsad filter membrane direction, the periphery of annular seal wall has a plurality of lugs, forms the mounting groove between lug and the annular seal wall. The existence of mounting groove makes the location when the filter core installation easier, and the installation is more convenient. After the filter core installation is accomplished, a plurality of lugs that are located the periphery of the annular seal wall of interface support and lean on the periphery of inner tube to extrude the inner tube towards the direction of the annular seal wall of interface, thereby the annular seal wall of interface and lug firmly block the inner tube of base together, make the sealing connection between filter core and base more firm, even be in the operating mode of big fluid flow, rocking of filter core can not appear yet, thereby avoid haring the interface of filter core, fluid leakage can not take place yet.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

fig. 1a and 1b are axial side views of a filter element provided by the present invention;

fig. 2 is a cross-sectional view of the filter element and the filter base provided by the present invention after the base is installed;

fig. 3 is a cross-sectional view of a first end cap of a filter cartridge according to the present invention;

fig. 4 is a top view of a first end cap of a filter cartridge according to the present invention;

fig. 5 is a front view of a second end cap of the filter cartridge provided by the present invention;

fig. 6 is a top view of a second end cap of a filter cartridge according to the present invention; the filter comprises a filter element 1, a filter core 10, a center rod 11, a shell 12, a filter membrane 13, a first end cover 131, a connector 1310, a sealing groove 1311, a lug boss 14, a second end cover 141, a second reinforcing rib 142, a handle 15, a lug boss 151, a first peripheral surface 152, a second peripheral surface 1521, a first part 1522, a second part 153, a top plane 154, a first reinforcing rib 16, a flange 17, a sealing ring 2, a base 2 and an inner barrel 20.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

As shown in fig. 1a and 1b and fig. 2, the filter cartridge 1 comprises a central rod 10, a housing 11, a filter membrane 12 disposed between the central rod 10 and the housing 11, and a first end cap 13 and a second end cap 14 sealingly fixed to a first end of the filter cartridge 1, the central rod 10 and the housing 11 having liquid permeable pores. The filter membrane 12 is formed as a hollow cylinder, the central rod 10 being located within the hollow interior of the filter membrane 12, the central rod 10 providing an internal fluid passage. Alternatively, when the flow direction of the fluid is inward and outward, that is, when the feed fluid flows from the inside to the outside of the filter membrane 12, the center rod 10 may be omitted and the cylindrical hollow interior of the filter membrane 12 directly serves as an internal fluid passage. Even in the case where the strength of the material of the filter membrane 12 is sufficiently high, both the center rod 10 and the housing 11 can be omitted. The first 13 and second 14 end caps are sealingly secured directly to the first and second ends of the filter membrane 12.

The first end cap 13 has a port 131 communicating with the internal fluid passage of the central rod 10 or the internal fluid passage of the filter membrane 12, the port 131 includes an annular sealing wall extending away from the filter membrane 12, the outer periphery of the annular sealing wall of the port 131 has a plurality of protrusions 15, and a mounting groove is formed between the protrusions 15 and the annular sealing wall of the port 131. The outer surface of the second cap 14 is provided with a second rib 141 and a handle 142.

When the filter element 1 is installed, the installation groove between the convex block 15 and the annular sealing wall of the interface 131 is aligned with the inner cylinder 20 of the base 2 and the filter element 1 is pressed downwards until the end part of the inner cylinder 20 abuts against the bottom surface of the installation groove, namely the surface of the first end cover 13, so that the installation of the filter element 1 can be completed. The existence of mounting groove makes the location when filter core 1 installs easier, and the installation is more convenient. After the installation of filter core 1 is accomplished, a plurality of lugs 15 that are located the periphery of the annular seal wall of interface 131 support and lean on the periphery of inner tube 20, and extrude inner tube 20 towards the direction of the annular seal wall of interface 131, thereby the annular seal wall of interface 131 firmly blocks inner tube 20 of base 2 together with lug 15, make the sealing connection between filter core 1 and base 2 more firm, even be in the operating mode of big fluid flow, the rocking of filter core 1 can not appear yet, thereby avoid haring the interface 131 of filter core 1, fluid leakage can not take place yet.

As shown in fig. 3-4, the projection 15 has a first peripheral surface 151 facing the outer periphery of the annular sealing wall of the mouthpiece 131 and a second peripheral surface 152 opposite to the first peripheral surface 151, the first and second

peripheral surfaces

151 and 152 being connected by a top plane 153 parallel to the surface of the first end cap 13, the first peripheral surface 151 being a cylindrical surface. The second peripheral surface 152 includes a first portion 1521 and a second portion 1522, the first portion 1521 is an inclined surface formed to protrude upward from the surface of the first end cap 13, the second portion 1522 is a vertical surface formed vertically upward from the end of the first portion 1521, and the vertical surface and the first peripheral surface 151 are connected by a top plane 153 parallel to the surface of the first end cap 13.

The first peripheral surface 151 of the projection 15 on the first end cap 13 is configured as a cylindrical surface to match the cylindrical outer wall of the inner cylinder 20 of the base 2 of the filter, so as to tightly clamp the inner cylinder 20 of the base 2 and facilitate the rotational installation of the filter cartridge 1. The second peripheral surface 152 comprises an inclined surface and a vertical surface, the inclined surface being such that the projection 15 is inclined overall in the direction of the annular sealing wall of the interface 131, so as to snap more tightly with the inner cylinder 20 of the base 2.

The outer periphery of the projection 15 is further provided with a ring of flanges 16 protruding vertically upwards from the outer edge of the first end cap 13 to form a cylindrical shape, and the projection 15 is connected to the flanges 16 at the beginning of the first portion 1521 of the second peripheral surface 152 of the projection from the first end cap 13. The flange 16 serves to increase the strength of the boss 15 and the first end cap 13 to ensure a reliable fixing between the boss 15 and the inner cylinder 20.

The inclined surface of the first portion 1521 of the second peripheral surface 152 of the projection 15 extends obliquely from the starting position of the first end cap 13 in the direction of the first peripheral surface 151, which makes the projection 15 as a whole inclined in the direction of the annular sealing wall of the mouth 131, in order to clamp the cartridge 1 and the inner cylinder 20 of the base 2 of the filter more firmly.

Further, the second peripheral surface 152 of the boss 15 is provided with a plurality of first ribs 154 formed integrally with the boss 15. The plurality of first ribs 154 function to increase the strength of the bump 15 and ensure the reliability of the fastening action of the bump 15 to the inner cylinder 20 of the base 2.

To ensure a reliable seal between the annular sealing wall of the interface 131 and the inner cylinder 20, the outer circumference of the annular sealing wall of the interface 131 is provided with a sealing groove 1310, a sealing ring 17 (see fig. 2) is placed in the sealing groove 1310, and two lugs 1311 (see fig. 4) are provided at a distance from the surface of the first end cap 13 which is smaller than the distance from the sealing groove 1310 to the surface of the first end cap 13. After installation, the lugs 1311 are screwed into and retained in a mating arrangement on the inner wall of the inner barrel 20 and the sealing ring 17 is compressed by the sealing groove 1310 and the inner wall of the inner barrel 20, thereby ensuring a reliable seal between the annular sealing wall of the interface 131 and the inner barrel 20 of the base 2. The axial height of the projection 15 is equal to or slightly less than the axial distance between the sealing groove 1310 and the first end cap 13, which ensures that the projection 15 and the inner cylinder 20 of the base 2 have a sufficiently high extrusion fixing height and contact extrusion area, so that the projection 15 and the annular sealing wall of the interface 131 firmly clamp the inner cylinder 20 of the base 2 together, and the filter cartridge 1 does not shake even when applied to a filtering condition of a large fluid flow.

As shown in fig. 1 and 5-6, the second cap 14 is liquid-tight, and the outer surface of the second cap 14 is provided with a plurality of second ribs 141 and a handle 142.

In order to improve the strength of the end cover in the prior art, the thickness of the end cover is increased generally, but the increase of the thickness of the end cover can cause the welding surface of the end cover to be uneven, which is not beneficial to reliable welding, and if the welding surface still has a gap. The utility model discloses in, through set up second strengthening rib 141 at second end cover 14 surfaces, improve second end cover 141's intensity to can reduce second end cover 14's thickness under the prerequisite of the intensity of ensureing second end cover 14, with the level and smooth of assurance weld face, and then be favorable to reliable welding.

The handle 142 on the outer surface of the second end cap 14 provides for easy installation and removal of the cartridge 1.

The number of the second reinforcing ribs 141 is 2, the 2 second reinforcing ribs 141 and the handle 142 are integrally formed at the outer surface of the second cap 14, and the 2 second reinforcing ribs 141 radially extend from a central position of the bottom of the handle 142 in a direction perpendicular to the handle 142.

The assembly or disassembly of the cartridge 1 is accomplished by grasping the handle 142 on the second end cap 14 and rotating or pressing down or pulling up the cartridge 1, and therefore the second end cap 14 and handle 142 must be able to withstand a certain tensile force. The second end cap 14 of the filter element 1 provided by the present application has 2 second reinforcing ribs 141 and a handle 142 integrally formed, and the 2 second reinforcing ribs 141 extend radially from the center of the bottom of the handle 142 along the direction perpendicular to the handle 142, that is, the 2 second reinforcing ribs 141, the handle 142 and the second end cap 14 are an integral body, and the 2 second reinforcing ribs 141 increase the strength of the handle 142 and the second end cap 14, so as to ensure that the handle 142 and the second end cap 14 are intact during the installation and removal of the filter element 1, thereby ensuring the smooth operation of the installation and removal of the filter element 1.

The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims

1. A filter cartridge comprising a filter membrane and first and second end caps sealingly secured to a first end of the filter membrane, said filter membrane formed as a hollow cylinder having an internal fluid passageway, wherein: the first end cover is provided with a port communicated with the internal fluid channel of the filter membrane, the port comprises an annular sealing wall extending back to the direction of the filter membrane, the periphery of the annular sealing wall is provided with a plurality of convex blocks, and a mounting groove is formed between each convex block and the annular sealing wall.

2. The cartridge of claim 1, wherein the projection has a first peripheral surface facing the periphery of the annular closure wall of the port and a second peripheral surface opposite the first peripheral surface, the first and second peripheral surfaces being connected by a top plane parallel to the surface of the first end cap, the first peripheral surface being cylindrical.

3. The filter cartridge of claim 2, wherein the second perimeter surface includes a first portion that is an angled surface projecting upwardly from a surface of the first end cap and a second portion that is a vertical surface formed vertically upwardly from a distal end of the first portion, the vertical surface and the first perimeter surface being connected by a top plane that is parallel to the surface of the first end cap.

4. A filter element as claimed in claim 3, wherein the projection is provided with a peripheral rim which projects vertically upwardly from the outer edge of the first end cap to form a cylindrical flange, the projection being connected to the flange at a first portion of its second peripheral surface from the start of the first end cap.

5. The filter cartridge of claim 4, wherein the angled surface of the first portion extends obliquely from the initial position of the first end cap toward the first peripheral surface.

6. A filter element as claimed in claim 3 or claim 5, wherein the second peripheral surface is provided with a plurality of first ribs formed integrally with the boss.

7. The filter element according to claim 2, wherein the annular sealing wall of the mouth has a sealing groove formed in an outer periphery thereof, a sealing ring is disposed in the sealing groove, and an axial height of the projection is equal to or slightly smaller than an axial distance between the sealing groove and the first end cap.

8. The filter cartridge of claim 1, wherein the second endcap is liquid-tight and has a plurality of second ribs on an exterior surface thereof.

9. The filter cartridge of claim 8, wherein the outer surface of the second end cap further comprises a handle.

10. The filter cartridge of claim 9, wherein the number of the second reinforcing ribs is 2, the 2 second reinforcing ribs and the handle are integrally formed at the outer surface of the second cap, and the 2 second reinforcing ribs radially extend from a central position of the bottom of the handle in a direction perpendicular to the handle.