CN112624367A

CN112624367A - Front-rear detachable integrated filter element structure

Info

Publication number: CN112624367A
Application number: CN202011421643.5A
Authority: CN
Inventors: 陶林兵; 杨玖林
Original assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Current assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-04-09

Abstract

The invention discloses a front-rear detachable integrated filter element structure, which comprises an outer barrel, a front-rear mechanism and an RO (reverse osmosis) membrane component, wherein the front-rear mechanism is arranged on the outer barrel; the front and rear mechanisms are detachably arranged in the outer barrel and comprise a front component and a rear component, the upper ends of the front and rear mechanisms are communicated with a raw water inlet, a front outlet and a pure water outlet, the bottoms of the front and rear mechanisms are provided with fixing seats, and the fixing seats are connected with the bottom of the outer barrel through a rotary buckle type structure; the front and rear mechanisms can be replaced by utilizing the detachable mounting mode of the front and rear mechanisms, the service life of the RO membrane assembly is fully utilized, the use cost of a user is effectively reduced, and the replacement is very convenient.

Description

Front-rear detachable integrated filter element structure

Technical Field

The invention relates to water filtering equipment, in particular to a front-rear detachable integrated filter element structure.

Background

At present, the filter element of the household water purifier on the market is often combined with a front-rear filter assembly and an RO membrane to form an integrated filter element for use. Because the RO membrane has long service life and short front and back service life, when the front and back service lives are finished, the whole filter element needs to be replaced, so that the waste of the RO membrane is caused, the filter element replacement cost is increased, and the use cost of a user is increased.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the related art. Therefore, the invention provides a front-rear detachable integrated filter element structure, which can facilitate replacement of a front-rear mechanism and reduce use cost.

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

according to a first aspect of the invention, the front and rear detachable integrated filter element structure comprises:

the top of the outer cylinder is provided with a raw water inlet, a preposed outlet, a secondary water inlet, a pure water outlet and a wastewater outlet;

the front and rear mechanism is detachably arranged in the outer barrel and comprises a front component and a rear component, the upper end of the front and rear mechanism is communicated with the raw water inlet, the front outlet and the pure water outlet, a fixed seat is arranged at the bottom of the front and rear mechanism, and the fixed seat is connected with the bottom of the outer barrel through a rotary buckle type structure;

the RO membrane assembly is arranged in the outer barrel and arranged around the front and rear mechanisms, and the RO membrane assembly is communicated with the secondary water inlet and the waste water outlet;

raw water enters the front-mounted assembly from a raw water inlet and is discharged from the front-mounted outlet, pretreated water penetrates through the RO membrane assembly through a secondary water inlet, enters the rear-mounted assembly and is finally discharged from the pure water outlet.

The front-rear detachable integrated filter element structure provided by the embodiment of the invention at least has the following beneficial effects: the front and rear mechanisms can be replaced by utilizing the detachable mounting mode of the front and rear mechanisms, the service life of the RO membrane assembly is fully utilized, the use cost of a user is effectively reduced, and the replacement is very convenient.

According to some embodiments of the invention, a bottom cover is arranged at the bottom of the outer barrel, the bottom cover is provided with an opening, a clamping groove is arranged on the side wall of the opening, and a buckle matched with the clamping groove is arranged on the fixing seat to form the rotary buckle type structure.

According to some embodiments of the invention, the bottom cover is fixedly connected to the bottom of the outer barrel through spin-melt welding.

According to some embodiments of the present invention, the RO membrane module includes a first inner cylinder and an RO membrane core sleeved on an outer wall of the first inner cylinder, a plurality of through holes are provided on a wall of the first inner cylinder, and the front and rear mechanisms are coaxially installed in the first inner cylinder.

According to some embodiments of the present invention, the pre-assembly includes a second inner cylinder, a PAC cartridge and a center tube installed in the second inner cylinder, and upper and lower end caps respectively covering upper and lower ends of the PAC cartridge; the PAC filter element is arranged around the central tube; the raw water inlet is communicated to a gap existing between the outer wall of the PAC filter element and the second inner cylinder; the preposed outlet is communicated to a gap existing between the inner wall of the PAC filter element and the outer wall of the central tube; the upper end of the central tube penetrates out of the upper end cover and then is connected with the pure water outlet, and the lower end of the central tube penetrates out of the lower end cover and the bottom of the second inner tube and is connected with the rear component.

According to some embodiments of the invention, the rear assembly comprises a rear carbon rod, the rear carbon rod is hollow and has a filtering hole on the wall, the upper end of the rear carbon rod is communicated with the lower end of the central tube, and the bottom of the rear carbon rod is fixedly connected with the fixed seat.

According to some embodiments of the invention, the central tube is provided with first sealing rings at both upper and lower ends.

According to some embodiments of the invention, two layers of second sealing rings are arranged on the outer wall of the fixing seat, the second sealing ring on the upper layer is sealed on the bottom of the inner wall of the RO membrane module, and the second sealing ring on the lower layer is sealed on the inner wall of the bottom of the outer barrel.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a sectional view of the internal structure of the present invention

FIG. 3 is a schematic view of the bottom cover structure of the present invention;

fig. 4 is an exploded view of the front and rear mechanisms of the present invention.

Reference numerals: an outer tub 100; a raw water inlet 101; a pre-exit 102; a secondary water inlet 103; a pure water outlet 104; a waste water outlet 105; a front-rear mechanism 200; a front-end component 210; a back component 220; a fixing base 230; an RO membrane module 300; a bottom cover 110; an opening 111; a card slot 112; a buckle 231; a first inner barrel 310; an RO membrane core 320; a through hole 311; a second inner cylinder 211; a PAC filter element 212; a center tube 213; an upper end cap 214; a lower end cap 215; a rear carbon rod 221; a first seal ring 410; and a second gasket 420.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 and 2, a front-rear detachable integrated filter element structure comprises an outer barrel 100, a front-rear mechanism 200 and an RO membrane module 300. The outer cylinder 100 has a hollow cylindrical shape, and a raw water inlet 101, a pre-outlet 102, a secondary water inlet 103, a pure water outlet 104, and a waste water outlet 105 are provided at the top of the outer cylinder 100. The front and rear mechanism 200 and the RO membrane module 300 are both installed in the outer cylinder 100, the RO module surrounds the periphery of the front and rear mechanism 200, and the outer wall and the inner wall of the RO membrane module respectively have a gap with the inner wall of the outer cylinder 100 and the outer wall of the front and rear mechanism 200. The front and rear mechanism 200 has an upper end communicating with the raw water inlet 101, the front outlet 102 and the pure water outlet 104, and the front and rear mechanism 200 includes a front module 210 and a rear module 220. The working principle is as follows: raw water such as tap water enters the front and rear mechanisms 200 through the raw water inlet 101 and is pretreated through the front assembly 210; the pretreated water is discharged through a front outlet 102, and the front outlet 102 is connected with a secondary water inlet 103 through an external pressure pump; the pretreated water enters the space between the outer tub 100 and the RO membrane module 300 through the secondary water inlet 103, and the water is secondarily purified by the RO membrane module 300, and at this time, the water is separated into wastewater and pure water by the reverse osmosis of the RO membrane module 300; the wastewater is discharged from the wastewater outlet, the water passing through the RO membrane module 300 is pure water, the pure water enters the post-module 220 for three times of purification to improve the taste, and finally the purified water is discharged from the pure water outlet 104 for the user to use.

As shown in fig. 1 and 3, the front and rear mechanism 200 has a fixing seat 230 at the bottom, the front and rear mechanism 200 is inserted into the outer tub 100 from the bottom of the outer tub 100, and the fixing seat 230 and the bottom of the outer tub 100 are connected by a screw-fastening structure; when the front and rear mechanism 200 is detached, the fixing base 230 is rotated to separate the fixing base 230 from the bottom of the outer cylinder 100, and then the front and rear mechanism 200 is pulled out from the outer cylinder 100 by pulling the fixing base 230. By utilizing the detachable installation mode of the front and rear mechanism 200, the front and rear mechanism 200 can be replaced, the service life of the RO membrane assembly 300 is fully utilized, the use cost of a user is effectively reduced, and the replacement is very convenient.

In some embodiments of the present invention, the bottom cover 110 is disposed at the bottom of the outer barrel 100, the bottom cover 110 has an opening 111, a slot 112 is disposed on a side wall of the opening 111, and a buckle 231 engaged with the slot 112 is disposed on the fixing base 230 to form the rotary buckle type structure. The front and rear mechanism 200 passes through the opening 111 of the bottom cover 110 and enters the outer cylinder 100, and the fastener 231 of the fixing seat 230 is screwed into the fastener slot 112, thereby completing the assembly of the front and rear mechanism 200.

In some embodiments of the present invention, the bottom cover 110 is fixedly connected to the bottom of the outer tub 100 by spin-welding. When the RO membrane module 300 is installed, the RO membrane module 300 is fixed in the outer cylinder 100, and then the bottom cover 110 is covered, the bottom of the RO membrane module 300 is tightly abutted against the upper wall of the bottom cover 110, so that the inner part and the outer part of the bottom of the RO membrane module 300 are separated, then the bottom cover 110 is fixed through spin-melt welding, and meanwhile, the connection sealing performance of the bottom cover 110 is ensured.

In some embodiments of the present invention, the RO membrane module 300 comprises a first inner barrel 310 and an RO membrane core 320 sleeved on the outer wall of the first inner barrel 310, wherein the wall of the first inner barrel 310 is provided with a plurality of through holes 311, and the front and rear mechanisms 200 are coaxially installed in the first inner barrel 310. The pretreated water enters the space between the outer cylinder 100 and the RO membrane core 320, and the water passes through the RO membrane core 320 and then is communicated to the tandem mechanism 200 through the through hole 311 of the first inner cylinder 310.

As shown in fig. 4, in some embodiments of the present invention, the front assembly 210 includes a second inner barrel 211, a PAC cartridge 212 and a center tube 213 installed in the second inner barrel 211, and an upper end cap 214 and a lower end cap 215 respectively covering upper and lower ends of the PAC cartridge 212; the PAC cartridge 212 is disposed around the center tube 213; the raw water inlet 101 is communicated with a gap between the outer wall of the PAC filter element 212 and the second inner cylinder 211; pre-outlet 102 communicates with a gap existing between an inner wall of PAC cartridge 212 and an outer wall of center tube 213; the upper end of the central tube 213 penetrates through the upper end cover 214 and is connected with the pure water outlet 104, the lower end of the central tube 213 penetrates through the lower end cover 215, and the bottom of the second inner tube 211 is connected with the rear component 220. As shown in fig. 2 and 3, the second inner cylinder 211 has an opening 111 at an upper end thereof, the center tube 213 is coaxially installed in the second inner cylinder 211, and the PAC filter 212 has a hollow cylindrical shape and coaxially surrounds the center tube 213. Upper and

lower end caps

214 and 215 cover the upper and lower ends of PAC cartridge 212, equivalently separating the inside and outside of PAC cartridge 212. A gap exists between the outer wall of the PAC filter element 212 and the inner wall of the second inner cylinder 211, raw water enters the gap through the raw water inlet 101, and then permeates the PAC filter element 212 inwards to carry out pre-pretreatment, and at the moment, pretreated water enters the gap between the central tube 213 and the PAC filter element 212. The upper cap 214 may be provided with an opening 111 through which the pre-outlet 102 communicates to an interstitial space where the pre-treated water exists, thereby discharging the pre-treated water from the pre-outlet 102. The post-assembly 220 is positioned below the second inner cylinder 211, the post-assembly 220 is connected with the lower end of the central pipe 213, and the pure water purified by the RO membrane assembly 300 is discharged along the post-assembly 220, the central pipe 213 and the pure water outlet 104 for users to use.

In some embodiments of the present invention, the rear assembly 220 includes a rear carbon rod 221, the rear carbon rod 221 is hollow and has a filtering hole (not shown) on its wall, the upper end of the rear carbon rod 221 is communicated with the lower end of the central tube 213, and the bottom of the rear carbon rod 221 is fixedly connected to the fixing base 230. Pure water enters the central tube 213 after passing through the rear carbon rod 221, and the water quality of the pure water is further improved by utilizing the rear carbon rod 221 so as to improve the taste. The bottom of the rear carbon rod 221 may be connected to the fixing base 230 by gluing, so as to separate the inside and outside of the rear carbon rod 221.

In some embodiments of the present invention, the central tube 213 is provided with first sealing rings 410 at both upper and lower ends. The first sealing ring 410 at the upper end of the central tube 213 is sealed on the inner wall of the pure water outlet 104, and the first sealing ring 410 at the lower end of the central tube 213 is sealed on the rear component 220, so that the water tightness of the joint between the two ends of the central tube 213 is increased, and the series flow of raw water or pure water is avoided.

In some embodiments of the present invention, two layers of second sealing rings 420 are disposed on the outer wall of the fixing base 230, the second sealing ring 420 located on the upper layer is sealed on the bottom of the inner wall of the RO membrane module 300, and the second sealing ring 420 located on the lower layer is sealed on the inner wall of the bottom of the outer tub 100. Specifically, the upper layer of the second sealing ring 420 is sealed on the inner wall of the first inner cylinder 310, and the lower layer of the second sealing ring 420 is sealed on the inner wall of the opening 111 of the bottom cover 110, so as to effectively prevent the fixing seat 230 from leaking water.

In the description herein, references to the description of "some specific embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a removable integration filter core structure of leading back which characterized in that includes:

the top of the outer cylinder (100) is provided with a raw water inlet (101), a preposed outlet (102), a secondary water inlet (103), a pure water outlet (104) and a waste water outlet (105);

the front and rear mechanism (200) is detachably mounted in the outer barrel (100) and comprises a front assembly (210) and a rear assembly (220), the upper end of the front and rear mechanism (200) is communicated with the raw water inlet (101), the front outlet (102) and the pure water outlet (104), the bottom of the front and rear mechanism (200) is provided with a fixed seat (230), and the fixed seat (230) is connected with the bottom of the outer barrel (100) through a screwing structure;

the RO membrane assembly (300) is installed in the outer barrel (100) and arranged around the front-rear mechanism (200), and the RO membrane assembly (300) is communicated with the secondary water inlet (103) and the waste water outlet (105);

raw water enters the front-mounted module (210) from a raw water inlet (101) and then is discharged from the front-mounted outlet (102), pretreated water penetrates the RO membrane module (300) through a secondary water inlet (103) and then enters the rear-mounted module (220) and finally is discharged through the pure water outlet (104).

2. The front and rear removable integrated filter cartridge arrangement according to claim 1, wherein: the bottom of the outer barrel (100) is provided with a bottom cover (110), the bottom cover (110) is provided with an opening (111), the side wall of the opening (111) is provided with a clamping groove (112), and the fixing seat (230) is provided with a buckle (231) matched with the clamping groove (112) to form the rotary buckle type structure.

3. The front and rear removable integrated filter cartridge arrangement according to claim 2, wherein: the bottom cover (110) is fixedly connected to the bottom of the outer barrel (100) in a rotary melting welding mode.

4. The front and rear removable integrated filter cartridge arrangement according to claim 1, wherein: the RO membrane assembly (300) comprises a first inner cylinder (310) and an RO membrane core (320) sleeved on the outer wall of the first inner cylinder (310), a plurality of through holes (311) are formed in the wall of the first inner cylinder (310), and the front and rear mechanisms (200) are coaxially installed in the first inner cylinder (310).

5. A front and rear removable integral cartridge structure according to claim 1 wherein: the lead assembly (210) comprises a second inner barrel (211), a PAC filter element (212) and a central pipe (213) which are arranged in the second inner barrel (211), and an upper end cover (214) and a lower end cover (215) which respectively cover the upper end and the lower end of the PAC filter element (212); the PAC filter element (212) is disposed around the center tube (213); the raw water inlet (101) is communicated to a gap existing between the outer wall of the PAC filter element (212) and the second inner barrel (211); the pre-outlet (102) being connected to a gap existing between an inner wall of the PAC cartridge (212) and an outer wall of the center tube (213); the upper end of the central pipe (213) penetrates through the upper end cover (214) and then is connected with the pure water outlet (104), and the lower end of the central pipe (213) penetrates through the lower end cover (215) and the bottom of the second inner cylinder (211) and is connected with the rear component (220).

6. The front and rear removable integrated filter cartridge arrangement according to claim 5, wherein: the rear assembly (220) comprises a rear carbon rod (221), the rear carbon rod (221) is hollow, a filter hole is formed in the wall of the rear carbon rod (221), the upper end of the rear carbon rod (221) is communicated with the lower end of the central pipe (213), and the bottom of the rear carbon rod (221) is fixedly connected with the fixed seat (230).

7. A front and rear removable integrated cartridge structure as claimed in claim 5 or 6, wherein: and the upper end and the lower end of the central pipe (213) are respectively provided with a first sealing ring (410).

8. A front and rear removable integrated cartridge structure as claimed in claim 1, 2 or 4, wherein: two layers of second sealing rings (420) are arranged on the outer wall of the fixing seat (230), the second sealing ring (420) positioned on the upper layer is sealed at the bottom of the inner wall of the RO membrane assembly (300), and the second sealing ring (420) positioned on the lower layer is sealed on the inner wall of the bottom of the outer barrel (100).