CN215352302U

CN215352302U - Composite filter element

Info

Publication number: CN215352302U
Application number: CN202120814253.8U
Authority: CN
Inventors: 姜明华; 徐威; 余锋
Original assignee: Shanghai Shuihudun Health Technology Co ltd
Current assignee: Shanghai Shuihudun Health Technology Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-12-31
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a composite filter element, which comprises a filter flask, a front filter element assembly and a rear filter element assembly; the front filter element assembly and the rear filter element assembly are arranged in the cavity of the filter bottle and are communicated; the rear filter element component comprises a sleeve, a bottom cover and a rear filter element; the sleeve and the bottom cover are connected in a sealing way to form a rear water cavity which is not communicated with the cavity of the filter bottle; the rear filter element is arranged in the rear water cavity, and a first rear water cavity is formed between the rear filter element and the sleeve; telescopic one end is provided with the mounting groove, and leading filter element group spare installation sets up on the mounting groove. Set up the two jointly and form composite filter element in a filter flask, rearmounted filter element group spare is as an solitary whole for rearmounted filter element group spare's leakproofness can not receive the influence, reaches composite filter element simple structure, and the convenient effect of equipment has solved in current composite filter element, and the sealing member of filter core can be damaged, influences the problem of sealed effect.

Description

Composite filter element

Technical Field

The utility model relates to the technical field of filter elements, in particular to a composite filter element.

Background

Along with people to the continuous improvement of quality of water requirement, water purification unit has obtained the wide use, and the tradition structure is that each filter core sets up alone respectively, and this just leads to the purifier whole volume great, occupies a considerable space, can not satisfy present user's needs, consequently in water purification unit, replaces the filter core that sets up alone with composite filter core more and more, and this also plays important role to water purification.

However, in the existing composite filter element, two different filtering water cavities are separated by a closed separator, so that the closed separator can damage a sealing piece when the closed separator rotates relatively for multiple times, the sealing effect is influenced, two originally independent water cavities are caused to lead to the situation of water flowing, the filtering effect of the filter element is influenced, and the composite filter element is scrapped.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems and provides a composite filter element, wherein the rear filter element component is designed into a single and closed integral body which is fixedly arranged in a filter flask, a water through hole is only communicated with the front filter element component, and the rear filter element component and the front filter element component are jointly arranged in the filter flask to form the composite filter element, so that the sealing performance of the rear filter element component is not influenced, and the effects of simple structure and convenient assembly of the composite filter element are achieved.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the application provides a composite filter element, which comprises a filter flask, a front filter element component and a rear filter element component; the front filter element assembly and the rear filter element assembly are arranged in a cavity of the filter bottle, and the front filter element assembly is communicated with the rear filter element assembly; the rear filter element component comprises a sleeve, a bottom cover and a rear filter element; the sleeve and the bottom cover are connected in a sealing way to form a rear water cavity, and the rear water cavity is not communicated with the cavity of the filter bottle; the rear filter element is arranged in the rear water cavity, and a first rear water cavity is formed between the rear filter element and the sleeve; telescopic one end is provided with the mounting groove, leading filter element group spare installation sets up on the mounting groove.

In the application, the prepositive filter element assembly and the postpositive filter element assembly are both arranged in the filter flask, the prepositive filter element assembly can filter water for the first time, the post-positioned filter element component can carry out secondary filtration on water, the post-positioned filter element component is only communicated with the pre-positioned filter element component, wherein the sleeve and the bottom cover are hermetically connected to form a rear water cavity, a first rear water cavity is formed between the rear filter element and the sleeve, the first postposition water cavity is not communicated with the cavity of the filter flask, the postposition filter element component is taken as a single whole and is not influenced by the rotation of the filter flask and the like, so as to ensure the tightness of the post-filter element component, the mounting groove is used for fixing the pre-filter element component, and the mounting groove with leading filter element group spare phase-match has increased the airtight effect of installation for the cavity water in the filter flask can not flow to rearmounted filter element group spare. The problem of in current composite filter core, separately two different filtration water cavities by an airtight separator, can lead to airtight separator to damage the sealing member when a lot of relative rotations like this, influence sealed effect, cause two independent water cavities originally to appear leading to the fact the water condition, influence the filter effect of filter core, lead to composite filter core condemned is solved.

Optionally, the rear filter element is of a hollow structure, and two ends of the rear filter element are abutted to the inside of the rear filter element component to form a second rear water cavity. The water in the first rear water cavity is filtered to the second rear water cavity through the rear filter element, and the first rear water cavity and the second rear water cavity are both arranged in the rear water cavity formed by the sleeve and the bottom cover in a closed connection mode.

Optionally, a support frame is arranged between the mounting groove and the rear filter element, and the support frame is sleeved at the upper end of the rear filter element; the support frame is provided with support ribs which are abutted against the bottom of the mounting groove, and the outer side of the support frame is not in contact with the inner side of the sleeve. The support frame with the inboard contactless formation space of sleeve, the confession rivers pass through, the support frame with the laminating of the top of rearmounted filter core sets up, prevents the water intercommunication in different water cavities.

Optionally, a butt joint groove is formed in the mounting groove, a butt joint piece is arranged in the butt joint groove, and the butt joint piece is communicated with the second postposition water cavity; the butt joint groove with butt joint groove bottom between the butt joint spare is provided with the through-hole, the through-hole with first rearmounted water cavity intercommunication. The butt joint groove with the setting of butt joint piece be used for with leading filter element group spare bottom phase-match airtight intercommunication for lead to water, the through-hole makes to be in the rivers of leading filter element group spare advance in the first rearmounted water cavity in the rearmounted filter element group spare.

Optionally, a fixing rib is arranged on the bottom cover, the rear filter element is sleeved on the fixing rib, and the bottom of the rear filter element abuts against the bottom cover. The fixed rib is used for fixing the rear filter element and preventing water in different water cavities from communicating with each other to influence the filtering effect.

Optionally, an annular groove is formed in the outer side of the bottom cover, and a sealing ring is arranged in the annular groove. The bottom cover with the sleeve passes through the airtight combination installation of sealing washer for rearmounted water cavity with the cavity of filter flask does not communicate, only communicates with leading filter element group spare, prevents that the water intercommunication in different water cavities from influencing the filter effect.

Optionally, the front filter element assembly sequentially comprises a front filter element, a first central tube and a second central tube from outside to inside; a first water inlet cavity is formed between the preposed filter element and the filter flask, a first water outlet cavity is formed between the preposed filter element and the first central tube, a second water inlet cavity is formed between the first central tube and the second central tube, and the inner cavity of the second central tube is a second water outlet cavity; the second water inlet cavity is communicated with the through hole, and the second water outlet cavity is communicated with the butt joint piece. The water of first intake antrum gets into through the filtration of leading filter core first play water cavity, the water process of second intake antrum the through-hole flows extremely first rearmounted water cavity, and water process the filtration of rearmounted filter core gets into the rearmounted water cavity of second, the water in the rearmounted water cavity of second flows through in proper order butt joint piece and second play water cavity.

Optionally, the top of the filter flask comprises a filter cover, a rotary disc, a first end cover and a second end cover which are hermetically connected, the rotary disc is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet, and the first end cover is provided with a first water inlet column, a first water outlet column, a second water inlet column and a second water outlet column; the first water inlet, the first water inlet column and the first water inlet cavity are communicated with each other, and the first water outlet, the first water outlet column and the first water outlet cavity are communicated with each other; the second water inlet, the second water inlet column and the second water inlet cavity are communicated with each other, and the second water outlet, the second water outlet column and the second water outlet cavity are communicated with each other.

Optionally, the first water outlet and the second water inlet are respectively communicated with an external RO reverse osmosis membrane filter element.

Drawings

FIG. 1 is a cross-sectional view of a composite filter element of the present invention;

FIG. 2 is a schematic structural view of a post-filter assembly of the present invention;

FIG. 3 is a cross-sectional view of another angle of the composite filter element of the present invention;

FIG. 4 is a schematic structural diagram of a turntable according to the present invention;

FIG. 5 is a schematic structural view of a first end cap of the present invention;

FIG. 6 is a schematic view of another angle configuration of the first endcap of the present invention;

fig. 7 is an exploded view of the composite filter element of the present invention.

Detailed Description

In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 5, an embodiment of the present application provides a composite filter element, which includes a filter flask 1, a front filter element assembly 2, and a rear filter element assembly 3; the front filter element assembly 2 and the rear filter element assembly 3 are arranged in a cavity of the filter bottle 1, and the front filter element assembly 2 is communicated with the rear filter element assembly 3; the rear filter element assembly 3 comprises a sleeve 31, a bottom cover 32 and a rear filter element 33; the sleeve 31 and the bottom cover 32 are hermetically connected to form a rear water cavity (not shown in the figure), and the rear water cavity is not communicated with the cavity of the filter bottle 1; the rear filter element 33 is arranged in the rear water cavity, and a first rear water cavity 313 is formed between the rear filter element 33 and the sleeve 31; one end of the sleeve 31 is provided with a mounting groove 311, and the front filter element assembly 32 is mounted and arranged on the mounting groove 311.

Further, in this embodiment, the rear filter element 33 is a hollow structure, and two ends of the rear filter element 33 are abutted to the inside of the rear filter element assembly 3 to form a second rear water chamber 323. The water in the first rear water cavity 313 is filtered to the second rear water cavity 323 through the rear filter element 33, and the first rear water cavity 313 and the second rear water cavity 323 are both arranged in the rear water cavity formed by the sealing connection between the sleeve 31 and the bottom cover 32.

Further, in this embodiment, a support frame 34 is disposed between the mounting groove 311 and the rear filter element 33, and the support frame 34 is sleeved on the upper end of the rear filter element 33; the support frame 34 is provided with a support rib 341, the support rib 341 abuts against the bottom of the mounting groove 311, and the outer side of the support frame 34 is not in contact with the inner side of the sleeve 31. The support frame 34 and the inner side of the sleeve 31 are not contacted to form a gap for water to pass through, and the support frame 34 and the top of the rear filter element 33 are attached to prevent water in different water cavities from communicating with each other.

Further, in this embodiment, a butt joint groove 35 is disposed on the mounting groove 311, a butt joint member 36 is disposed in the butt joint groove 35, and the butt joint member 36 is communicated with the second postposition water cavity 323; a through hole 356 is formed in the bottom of the butt joint groove 35 between the butt joint groove 35 and the butt joint piece 36, and the through hole 356 is communicated with the first rear water cavity 313. The butt joint groove 35 with the setting of butt joint piece 36 be used for with leading filter element group spare 2 bottom matches airtight intercommunication for lead to water, through-hole 356 makes and is in the rivers of leading filter element group spare 2 advance in the first rearmounted water cavity 313 in the rearmounted filter element group spare 3.

Further, in this embodiment, the bottom cover 32 is provided with a fixing rib 321, the rear filter element 33 is sleeved on the fixing rib 321, and the bottom of the rear filter element 33 abuts against the bottom cover 32. The fixing rib 321 is used for fixing the rear filter element 33 and preventing water in different water chambers from communicating with each other to affect the filtering effect.

Further, in the present embodiment, an annular groove 322 is disposed on an outer side of the bottom cap 32, and a sealing ring 324 is disposed in the annular groove 322. The bottom cover 32 and the sleeve 31 are assembled and installed in a closed mode through the sealing ring 324, so that the rear water cavity is not communicated with the cavity of the filter bottle 1 and is only communicated with the front filter element assembly 2, and the filter effect is prevented from being influenced by the water intercommunication in different water cavities.

It should be noted that, a sealed structure may also be formed between the bottom cover and the sleeve by means of screw fixation and ultrasonic welding.

Further, in this embodiment, the front filter element assembly 2 sequentially includes, from outside to inside, a front filter element 21, a first center tube 22, and a second center tube 23; a first water inlet cavity 211 is formed between the front filter element 21 and the filter bottle 1, a first water outlet cavity 212 is formed between the front filter element 21 and the first central tube 22, a second water inlet cavity 223 is formed between the first central tube 22 and the second central tube 23, and the inner cavity of the second central tube 23 is a second water outlet cavity 234; the second inlet chamber 223 is in communication with the through hole 356 and the second outlet chamber 234 is in communication with the abutment 36. The water in the first water inlet cavity 211 enters the first water outlet cavity 212 through the filtration of the front filter element 21, the water in the second water inlet cavity 234 flows to the first rear water outlet cavity 313 through the through hole 356, the water enters the second rear water outlet cavity 323 through the filtration of the rear filter element 33, and the water in the second rear water outlet cavity 323 sequentially flows through the butt joint element 36 and the second water outlet cavity 234.

Further, in this embodiment, the top of the filter flask 1 includes a filter cover 13, a rotary disc 14, a first end cover 11 and a second end cover 12, which are hermetically connected, the rotary disc 14 is provided with a first water inlet 141, a first water outlet 142, a second water inlet 143 and a second water outlet 144, and the first end cover 11 is provided with a first water inlet column 111, a first water outlet column 112, a second water inlet column 113 and a second water outlet column 114; the first water inlet 141, the first water inlet column 111 and the first water inlet cavity 211 are communicated with each other, and the first water outlet 142, the first water outlet column 112 and the first water outlet cavity 212 are communicated with each other; the second inlet 143, the second inlet column 113 and the second inlet chamber 223 are in communication with each other, and the second outlet 144, the second outlet column 114 and the second outlet chamber 234 are in communication with each other.

Further, in this embodiment, the first water outlet 141 and the second water inlet 143 are respectively communicated with an external RO reverse osmosis membrane cartridge.

Leading filter element group spare 2 and rearmounted filter element group spare 3 all establish in filter flask 1 in the embodiment of this application, leading filter element group spare 2 can carry out water for the first time and filter, rearmounted filter element group spare 3 can carry out water secondary filter, rearmounted filter element group spare 3 only with leading filter element group spare 2 intercommunication, wherein airtight connection forms rearmounted water cavity between sleeve 31 and the bottom 32, rearmounted filter core 33 with form first rearmounted water cavity 313 between the sleeve 31, first rearmounted water cavity 313 does not communicate with the cavity of filter flask 1, rearmounted filter element group spare 3 is as an solitary whole, does not receive the influence of rotatory such as filter flask 1 to as can guarantee the seal of rearmounted filter element group spare 3, mounting groove 311 is used for fixing leading filter element group spare 2 to mounting groove 311 with leading filter element group spare 2 phase-match has increased the airtight effect of installation, so that water in the cavity of the filter flask cannot flow to the rear filter element assembly 3, wherein the first filtered water sequentially flows through the first water inlet 141, the first water inlet column 111, the first water inlet cavity 211, the first water outlet cavity 212, the first water outlet column 112 and the first water outlet 142; the water filtered for the second time sequentially passes through the second water inlet 143, the second water inlet column 113, the second water inlet cavity 223, the through hole 356, the first rear water cavity 313, the second rear water cavity 323, the butt joint piece 36, the second water outlet cavity 234, the second water outlet column 114 and the second water outlet 144, and the first water outlet 142 and the second water inlet 143 are respectively communicated with an external RO (reverse osmosis) membrane filter element. The problem of in current composite filter core, separately two different filtration water cavities by an airtight separator, can lead to airtight separator to damage the sealing member when a lot of relative rotations like this, influence sealed effect, cause two independent water cavities originally to appear leading to the fact the water condition, influence the filter effect of filter core, lead to composite filter core condemned is solved.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A composite filter element is characterized by comprising a filter flask, a front filter element component and a rear filter element component;

the front filter element assembly and the rear filter element assembly are arranged in a cavity of the filter bottle, and the front filter element assembly is communicated with the rear filter element assembly;

the rear filter element component comprises a sleeve, a bottom cover and a rear filter element;

the sleeve and the bottom cover are connected in a sealing way to form a rear water cavity, and the rear water cavity is not communicated with the cavity of the filter bottle;

the rear filter element is arranged in the rear water cavity, and a first rear water cavity is formed between the rear filter element and the sleeve;

telescopic one end is provided with the mounting groove, leading filter element group spare installation sets up on the mounting groove.

2. The composite filter element of claim 1, wherein the post-filter element is a hollow structure, and two ends of the post-filter element are abutted against the inside of the post-filter element component to form a second post-water cavity.

3. The composite filter element according to claim 1, wherein a support frame is arranged between the mounting groove and the rear filter element, and the support frame is sleeved at the upper end of the rear filter element;

the support frame is provided with support ribs which are abutted against the bottom of the mounting groove, and the outer side of the support frame is not in contact with the inner side of the sleeve.

4. The composite filter element according to claim 2 wherein a docking slot is provided on the mounting slot, a docking member is provided in the docking slot, and the docking member is in communication with the second backwater chamber;

the butt joint groove with butt joint groove bottom between the butt joint spare is provided with the through-hole, the through-hole with first rearmounted water cavity intercommunication.

5. The composite filter element of claim 1, wherein the bottom cover is provided with a fixing rib, the rear filter element is sleeved on the fixing rib, and the bottom of the rear filter element is abutted against the bottom cover.

6. The composite filter element of claim 1, wherein the bottom cap is provided with an annular groove on an outer side thereof, the annular groove having a sealing ring disposed therein.

7. The composite filter element according to claim 4, wherein the front filter element assembly comprises a front filter element, a first central tube and a second central tube in sequence from outside to inside;

a first water inlet cavity is formed between the preposed filter element and the filter flask, a first water outlet cavity is formed between the preposed filter element and the first central tube, a second water inlet cavity is formed between the first central tube and the second central tube, and the inner cavity of the second central tube is a second water outlet cavity;

the second water inlet cavity is communicated with the through hole, and the second water outlet cavity is communicated with the butt joint piece.

8. The composite filter element of claim 7, wherein the top of the filter flask comprises a filter cap, a turntable, a first end cap and a second end cap that are sealingly connected, the turntable is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet, the first end cap is provided with a first water inlet column, a first water outlet column, a second water inlet column and a second water outlet column;

the first water inlet, the first water inlet column and the first water inlet cavity are communicated with each other, and the first water outlet, the first water outlet column and the first water outlet cavity are communicated with each other;

the second water inlet, the second water inlet column and the second water inlet cavity are communicated with each other, and the second water outlet, the second water outlet column and the second water outlet cavity are communicated with each other.

9. The composite filter element of claim 8, wherein the first water outlet and the second water inlet are respectively communicated with an external RO reverse osmosis membrane filter element.