CN212523305U

CN212523305U - Filter element shell for containing filter material and water purifying device

Info

Publication number: CN212523305U
Application number: CN202020976723.6U
Authority: CN
Inventors: 周梦德; 陈洋; 洪峰
Original assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd; AO Smith China Environmental Products Co Ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-02-12
Anticipated expiration: 2030-06-01

Abstract

The utility model discloses a filter core casing and purifier for taking up filtering material, it relates to the water purification field, and filter core casing includes: the device comprises a cylinder body, an end cover and a sealing ring; the end cover is provided with a first end facing the cylinder body and a second end facing away from the cylinder body, and the cylinder body is provided with a third end facing the end cover; the first end is provided with an annular groove, and the third end of the cylinder is inserted into the annular groove and is connected with the end cover in a rotary fusion welding or hot melting mode; the sealing ring is arranged on the second end of the end cover, and the inner side wall of the sealing ring is provided with at least one annular bulge; the second end of the end cover is provided with an annular blocking part which extends upwards, the blocking part is inserted into the sealing ring and is positioned on the periphery of the bulge, and when the bulge is pressed outwards along the radial direction, the blocking part can abut against the bulge. This application can effectively improve the leakproofness to avoid causing the pollution to water.

Description

Filter element shell for containing filter material and water purifying device

Technical Field

The utility model relates to a water purification field, in particular to a filter core casing and purifier for taking up filtering material.

Background

The water purifier is also called water purifier and water purifier, and is water treating equipment for deep filtering and purifying water according to the requirement of water use. Water purification devices currently used in households generally have a multi-stage filtration cartridge, and for this purpose, the filtration cartridge needs to be mounted on the water purification device. In a prior art, the last filter flask that has of purifier, the filter flask is used for holding and filters the filter core, and the filter core when installing on the filter flask, thereby the filter core needs to dock the intercommunication that realizes the water route with the filter flask, will guarantee the leakproofness between the two in order to prevent to appear leaking at the intercommunication in-process. At present, a sealing ring is arranged on the upper end face of a filtering filter element, and the sealing between the end face of the filtering filter element and a filter bottle is realized through the compression in the axial direction, but the area of the end face in the radial direction is large, and the pressure formed by the compression force in the axial direction is small, so that the sealing performance is not particularly high. Secondly, the filter cartridge itself has a barrel and an end cap, and the filter cartridge is used for holding filter material, such as activated carbon particles and the like. After the filtering material is filled in the cylinder body and the end cover, the cylinder body and the end cover are required to be connected in a sealing mode, and the cylinder body and the end cover are connected in a sealing mode in a gluing mode. Therefore, a new approach to solve the above problems is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a technical problem that will solve provides a filter core casing and purifier for taking up filtering material, and it can effectively improve the leakproofness to avoid causing the pollution to water.

The embodiment of the utility model provides a concrete technical scheme is:

a cartridge housing for housing a filter material, the cartridge housing comprising: the device comprises a cylinder body, an end cover and a sealing ring; the end cap has a first end facing the barrel and a second end facing away from the barrel, the barrel having a third end facing the end cap;

the first end is provided with an annular groove, and the third end of the cylinder is inserted into the annular groove and is connected with the end cover in a rotary fusion welding or hot fusion mode;

the sealing ring is arranged on the second end of the end cover, and the inner side wall of the sealing ring is provided with at least one annular bulge; the second end of the end cover is provided with an annular blocking part which extends upwards, the blocking part is inserted into the sealing ring and is positioned on the periphery of the bulge, and when the bulge is pressed outwards along the radial direction, the blocking part can abut against the bulge.

Preferably, before the spin-welding or the thermal-melting connection, the inner wall of the annular groove and at least one part of the third end of the cylinder body are provided with overlapped interference parts.

Preferably, an inner wall of the annular groove has a stepped portion to form the interference portion.

Preferably, the inner side wall of the cylinder body at the third end is in a smooth state.

Preferably, the outer side wall of the cylinder has corrugations extending in the axial direction.

Preferably, after the spin-weld welding is completed, the third end of the cylinder abuts against the bottom of the annular groove.

Preferably, after the hot-melt connection is completed, in the annular groove, the cylinder body and the end cover are connected together through a hot-melt material, and the hot-melt material is the same as the material of the cylinder body and the material of the end cover.

Preferably, the thickness of the sealing ring is greater than the height of the blocking portion.

Preferably, the number of the protrusions is 2.

A water purification device, comprising: the filter bottle that holds as above-mentioned arbitrary filter core casing, the filter bottle is last to have the connecting pipe, the connecting pipe passes the sealing washer with the end cover docks mutually, the lateral wall of connecting pipe supports bellying on the sealing washer inside wall.

Preferably, the protrusion is located between the connection pipe and the stopper, so that the connection pipe and the stopper press the protrusion.

Preferably, the upper end of the inner side wall of the sealing ring is provided with a chamfer for inserting the connecting pipe into the sealing ring.

The technical scheme of the utility model following beneficial effect that is showing has:

a filter core casing for holding dress filtering material in this application is through seting up the annular groove on the first end of end cover, will the third end of barrel inserts to realize through the mode of spin-melt welding or hot melt in the annular groove with the end cover is connected, and sticky glue can not be introduced to this kind of mode to avoid causing the risk of pollution to the water purification, can guarantee the leakproofness of being connected between barrel and the end cover simultaneously. In addition, when the filter core casing for holding filtering material in this application is installed on the filter flask, the connecting pipe on the filter flask passes the sealing washer with the end cover docks mutually, and at this in-process, the lateral wall of connecting pipe supports the bellying on the sealing washer inside wall to make the bellying receive radial direction outside pressure, the boss supports. The bulge is compressed tightly by the high-pressure of the blocking part and the connecting pipe in the radial direction, so that the sealing performance between the connecting pipe and the filtering filter element is effectively improved.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.

Fig. 1 is a schematic structural view of a water purification apparatus according to an embodiment of the present invention, in which a filter element is installed in a filter flask;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is an enlarged schematic view of fig. 1 at B.

Reference numerals of the above figures:

1. a barrel; 2. an end cap; 21. a blocking portion; 22. a limiting part; 23. opening a hole; 3. a seal ring; 31. a boss portion; 32. chamfering; 4. an annular groove; 41. an interference section; 42. a step portion; 5. a filter flask; 51. a connecting pipe; 52. a pressing part.

Detailed Description

The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In order to effectively improve the sealing performance and avoid polluting water, the present application provides a filter element housing for accommodating filter material, fig. 1 is a structural schematic diagram of a water purifying device in which a filter element is installed in a filter flask, fig. 2 is an enlarged schematic diagram of a position a in fig. 1, fig. 3 is an enlarged schematic diagram of a position B in fig. 1, and as shown in fig. 1 to 3, the filter element housing may include: the device comprises a cylinder body 1, an end cover 2 and a sealing ring 3; the end cover 2 is provided with a first end facing the cylinder body 1 and a second end facing away from the cylinder body 1, and the cylinder body 1 is provided with a third end facing the end cover 2; the first end is provided with an annular groove 4, and the third end of the cylinder body 1 is inserted into the annular groove 4 and is connected with the end cover 2 in a rotary fusion welding or hot fusion mode; the sealing ring 3 is arranged at the second end of the end cover 2, and the inner side wall of the sealing ring 3 is provided with at least one annular bulge part 31; the second end of the end cap 2 has an upwardly extending annular stop 21, the stop 21 is inserted into the sealing ring 3, the stop 21 is located at the periphery of the boss 31, and when the boss 31 is pressed outward in the radial direction, the stop 21 can abut against the boss 31.

The water purifying apparatus may include: the filter flask 5 that holds the filter core casing has connecting pipe 51 on the filter flask 5, and connecting pipe 51 passes sealing washer 3 and butts mutually with end cover 2, and the bellying 31 on the sealing washer 3 inside wall is supported to the lateral wall of connecting pipe 51.

A filter core casing for holding dress filtering material in this application is through offering annular groove 4 on the first end at end cover 2, inserts the third end of barrel 1 and realizes being connected with end cover 2 through the mode of spin-melt welding or hot melt in annular groove 4, and sticky glue can not be introduced to this kind of mode to avoid causing the risk of pollution to the water purification, can guarantee the leakproofness of being connected between barrel 1 and the end cover 2 simultaneously. In addition, when the filter cartridge housing for holding filter material in the present application is mounted on the filter bottle 5, the connecting tube 51 on the filter bottle 5 is passed through the sealing ring 3 and abutted against the end cap 2, and in the process, the outer side wall of the connecting tube 51 abuts against the boss 31 on the inner side wall of the sealing ring 3, and the boss 31 is subjected to outward pressure in the radial direction, and the stopper 21 abuts against the boss 31. The boss 31 is compressed by the high pressure of the stopper 21 and the connection pipe 51 in the radial direction, thereby effectively improving the sealing property between the connection pipe 51 and the filter cartridge.

In order to better understand the cartridge housing and the water purification device for housing the filter material in the present application, it will be further explained and illustrated below. As shown in fig. 1, the cartridge housing may include: the device comprises a cylinder body 1, an end cover 2 arranged at an opening at the upper end of the cylinder body 1 and a sealing ring 3 arranged at the upper end of the end cover 2.

Wherein the end cap 2 has a first end facing the cylinder 1 and a second end facing away from the cylinder 1. The cylinder 1 has a third end facing the end cap 2. The opening of the cylinder 1 is located at the third end, and the end cover 2 is used for sealing the opening at the third end of the cylinder 1. The sealing ring 3 is arranged at a second end of the end cap 2 facing away from the cylinder 1.

As shown in fig. 2, the end cover 2 is provided with an annular groove 4 towards the first end of the cylinder 1, and the shape of the third end of the cylinder 1 is matched with the annular groove 4, so that the third end of the cylinder 1 can be inserted into the annular groove 4 and connected with the end cover 2 through spin-weld welding or hot-melt welding. Because sticky glue can not be introduced to the mode of spin-melt welding or hot melt to avoid causing the risk of polluting the water purification, can guarantee the leakproofness of being connected between barrel 1 and the end cover 2 simultaneously.

In fig. 2, which is a schematic view before the cylinder and the end cover are welded completely or are not connected by hot melting, the inner wall of the annular groove 4 and at least one part of the third end of the cylinder 1 have an interference part 41 which is overlapped. In a possible embodiment, the inner wall of the annular groove 4 has a step 42 in the shape of a ring to form the interference portion 41. During the spin-melt welding, the interference portion 41, in which the inner wall of the annular groove 4 overlaps the third end of the cylinder 1, melts due to high temperature during the rotation, so that the cylinder 1 can continuously move upwards to the bottom of the annular groove 4 of the end cover 2, the melted interference portion 41 is filled in the annular groove 4 under the extrusion of the cylinder 1, and after cooling, the cylinder 1 and the end cover 2 are connected together. Therefore, after the spin-weld welding is completed, the third end of the cylinder 1 abuts against the bottom of the annular groove 4. In the case of thermal fusion, in a possible embodiment, the cylinder 1 and the end cap 2 are connected together in the annular groove 4 by a thermal fusion material, which is the same as the material of the cylinder 1 and the end cap 2. The third end of the cylinder 1 abuts against the interference portion 41 of the inner wall of the annular groove 4. Fill in the annular groove 4 and be full of hot melt material and can make the bottom and the inside wall of annular groove 4 all have hot melt material, can make the up end and the inside wall of barrel 1 all be connected with the bottom and the inner wall side of annular groove 4 respectively through hot melt material like this, effectively improve firm degree and the leakproofness of connection. Of course, in other possible embodiments, the inner wall of the annular groove 4 may not have the interference portion 41, and the third end of the cylinder 1 directly abuts against the bottom of the annular groove 4, and the third end of the cylinder 1 is connected together by the hot melting material at the bottom of the annular groove 4.

In order to ensure that the connection between the inner side wall of the third end of the cylinder body 1 and the inner side wall of the annular groove 4 of the end cover 2 is firmer and better in sealing performance during the spin-weld welding, the inner side wall of the cylinder body 1, which is positioned at the third end, is in a smooth state and is generally circular in the cross section in the horizontal direction.

Preferably, the outer side wall of the cylinder 1 may have corrugations extending in the axial direction, and the corrugations can effectively improve the strength of the cylinder 1, so that the cylinder 1 is not easy to break or bend under pressure. Simultaneously, the area of the lateral wall of the ripple-increased third end of the cylinder 1 can increase the firmness of the connection of the cylinder 1 and the end cover 2 to a certain extent.

As shown in fig. 3, the end cap 2 has a vertically extending opening 23 for fluid flow into and out of the cartridge housing. The seal ring 3 extends in a horizontal direction and is substantially annular. The inner side wall of the sealing ring 3 has at least one annular projection 31. The inner diameter of the seal ring 3 is smaller than the diameter of the opening 23. The second end of the end cap 2 has an upwardly extending annular stop 21. The thickness of sealing washer 3 is greater than the height of stop part 21, so can make stop part 21 imbed the lower terminal surface of sealing washer 3, and stop part 21 is located the periphery of bellying 31, so, when bellying 31 received along radial direction outside pressure, stop part 21 can support bellying 31 in radial direction, and bellying 31 will compress tightly the deformation to reach sealed purpose.

In order to effectively improve the sealing effect, the number of the protruding parts 31 is generally 2, so that the sealing effect is relatively good in cost performance, and excessive waste of the protruding parts 31 is avoided.

As shown in fig. 3, the third end of the end cap 2 preferably has an upwardly extending annular stopper 22. The limiting part 22 is located on the outer side wall of the sealing ring 3, and the sealing ring 3 is arranged in the limiting part 22, so that the sealing ring 3 can be effectively prevented from moving in a staggered mode in the horizontal direction.

The water purifying apparatus may include a filter flask 5 accommodating the cartridge housing of any one of the above, the filter flask 5 having a connection pipe 51 extending vertically downward. When the filter element housing is installed in the filter bottle 5, the connecting pipe 51 needs to pass through the sealing ring 3 and then butt against the opening 23 on the end cover 2 to realize communication, in this process, the outer side wall of the connecting pipe 51 butts against the boss 31 on the inner side wall of the sealing ring 3, and the boss 31 is located between the connecting pipe 51 and the blocking portion 21, so that the connecting pipe 51 and the blocking portion 21 squeeze the boss 31.

At this time, the protruding portion 31 is pressed radially outward by the connecting pipe 51, and since the connecting pipe 51 is thin, the force-bearing area on the protruding portion 31 is small, and the radially outward pressure can be controlled according to the outer diameter of the connecting pipe 51, the pressure on the protruding portion 31 is large and much larger than the pressure formed by the pressing force in the axial direction in the prior art, and therefore, in the above embodiment, the sealing performance between the connecting pipe 51 and the end cover 2 is far superior to the sealing performance between the filter flask 5 and the filter element housing in the prior art. Meanwhile, the sealing performance between the connection pipe 51 and the end cap 2 can be improved by the number of the protrusions 31.

In a possible embodiment, as shown in fig. 3, the upper end of the inner side wall of the sealing ring 3 has a chamfer 32 for inserting the connecting pipe 51 into the sealing ring 3, and the upper end of the inner side wall of the sealing ring 3 may have the chamfer 32 all around, so that the connecting pipe 51 of the filter flask 5 can be easily inserted into the sealing ring 3 to squeeze the protrusion 31.

In a possible embodiment, as shown in fig. 3, the filter bottle 5 further has a pressing portion 52 extending vertically downward, the pressing portion 52 may be located at the periphery of the connecting tube 51, and the pressing portion 52 is annular. When the filter cartridge is installed in the filter flask 5, the pressing portion 52 can press the sealing ring 3 downward in the vertical direction, thereby preventing the sealing ring 3 from moving freely in the axial direction.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments. All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional. A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

The above embodiments are only embodiments of the present invention, and although the embodiments of the present invention are disclosed as above, the contents are only embodiments adopted for facilitating understanding of the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A filter cartridge housing for housing a filter material, the filter cartridge housing comprising: the device comprises a cylinder body, an end cover and a sealing ring; the end cap has a first end facing the barrel and a second end facing away from the barrel, the barrel having a third end facing the end cap;

2. A cartridge housing for containing filter material as recited in claim 1, wherein the inner wall of the annular recess has an overlapping interference with at least a portion of the third end of the barrel prior to spin-welding or heat-staking.

3. A cartridge housing for holding filter material as recited in claim 2, wherein the inner wall of the annular groove has a step to form the interference portion.

4. A cartridge housing for holding filter material as recited in claim 1, wherein the inner sidewall of the cartridge at the third end is smooth.

5. A cartridge housing for holding filter material as recited in claim 1, wherein the outer sidewall of the cartridge has corrugations extending in the axial direction.

6. A cartridge housing for holding filter material as recited in claim 1, wherein the third end of the barrel abuts the bottom of the annular recess after the spin-weld is completed.

7. A cartridge housing for holding filter material as recited in claim 1, wherein the cartridge body and the end cap are joined together in the annular groove by a hot melt material that is the same as the material of the cartridge body and the end cap after the hot melt joining is completed.

8. A cartridge housing for containing filter material as recited in claim 1, wherein the seal ring has a thickness greater than a height of the stop.

9. A cartridge housing for holding filter material as recited in claim 1, wherein the number of bosses is 2.

10. A water purification device, characterized in that, water purification device includes: a filter bottle containing a cartridge housing according to any of claims 1 to 9, said filter bottle having a connector tube thereon, said connector tube passing through said seal ring and abutting said end cap, said connector tube having an outer sidewall abutting a boss on an inner sidewall of said seal ring.

11. The water purifying apparatus of claim 10, wherein the protrusion is located between the connection pipe and the blocking portion, such that the connection pipe and the blocking portion press the protrusion.

12. The water purifying apparatus of claim 11, wherein the upper end of the inner sidewall of the sealing ring has a chamfer for inserting the connection pipe into the sealing ring.