CN211302312U

CN211302312U - Postposition filter element and water purification system

Info

Publication number: CN211302312U
Application number: CN201921389334.7U
Authority: CN
Inventors: 孙天厚
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-08-21
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a rearmounted filter core and water purification system, rearmounted filter core includes: the filter cartridge is provided with a water inlet and a water outlet and is divided into a filter cavity and a pressure storage cavity, wherein the inlet end of the filter cavity is connected with the water inlet, and the outlet end of the pressure storage cavity is connected with the water outlet. According to the utility model discloses rearmounted filter core through set up in straining a section of thick bamboo with the communicating pressure accumulation chamber of filter chamber for at least, store some pressurized water in the pressure accumulation intracavity, thereby before water purification system normal system water, water purification system can go out water steadily in succession.

Description

Postposition filter element and water purification system

Technical Field

The utility model relates to a water purification technology field, more specifically relates to a rearmounted filter core and water purification system.

Background

With the application of water purification technology in household, reverse osmosis membrane filtration becomes the mainstream of water purification system, and the start and stop of water purification system is often controlled through high-voltage switch, and one of the problems of this water purification system lies in: at the initial stage of water making, water cannot be quickly and continuously discharged, specifically, after the water faucet is turned on, a section of water is output outwards violently, then the water flow is reduced or interrupted, and the water faucet can continuously and stably discharge water until RO normally makes water.

The above problems bring poor water use experience to consumers, and particularly, in the initial stage of use of the water purification system, users often misunderstand that the quality of the machine is a problem, thereby bringing unnecessary customer complaints and loss of manpower and material resources.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of above-mentioned technical problem to a certain extent at least.

Therefore, the utility model provides a rearmounted filter core has stored pressure water in this rearmounted filter core, can guarantee that water purification system goes out water in succession steadily.

The utility model discloses still provide a water purification system who has above-mentioned rearmounted filter core, water purification system can go out water in succession steadily.

According to the utility model discloses rearmounted filter core of first aspect embodiment includes: the filter cartridge is provided with a water inlet and a water outlet and is divided into a filter cavity and a pressure storage cavity, wherein the inlet end of the filter cavity is connected with the water inlet, and the outlet end of the pressure storage cavity is connected with the water outlet.

According to the utility model discloses rearmounted filter core through set up in straining a section of thick bamboo with the communicating pressure accumulation chamber of filter chamber for at least, store some pressurized water in the pressure accumulation intracavity, thereby before water purification system normal system water, water purification system can go out water steadily in succession.

In addition, according to the utility model discloses rearmounted filter core can also have following additional technical characterstic:

according to some embodiments of the invention, the outlet end of the filter chamber is connected to the inlet end of the pressure storage chamber.

According to some embodiments of the utility model, the rearmounted filter core is still including forming the barrel in pressure storage chamber, the import of barrel with the exit linkage in filter chamber, the export of barrel with the delivery port intercommunication.

In an optional embodiment, a central tube is further arranged in the rear filter element, one end of the central tube penetrates through the outlet of the cylinder body, and the other end of the central tube is embedded in the cylinder body.

In a further optional embodiment, the water inlet and the water outlet are both located at the upper end of the filter cartridge, and the filter chamber is located at the lower side of the pressure accumulation chamber.

In a further optional embodiment, an upper support and a lower support which are opposite up and down and are arranged at intervals are further arranged in the filter cylinder, the upper support is connected with the lower end of the cylinder body, the lower support is connected to the filter cylinder, and a filter material is arranged between the upper support and the lower support.

In a further alternative embodiment, the filter cartridge comprises: the water inlet and the water outlet are formed in the end cover, and one end of the central tube is fixed on the end cover.

In an optional embodiment, the outer wall of the cylinder body is provided with a plurality of protrusions, and the protrusions abut against the inner wall surface of the filter cartridge.

In an optional embodiment, the upper bracket is provided with a sleeve inserted into the barrel, one of the sleeve and the barrel is provided with a positioning column, and the other is provided with a positioning groove.

According to the utility model discloses water purification system includes the rearmounted filter core of above-mentioned embodiment, because according to the utility model discloses the rearmounted filter core of embodiment has reserved pressure water, consequently, can guarantee that water purification system can go out water in succession steadily at the use initial stage.

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 a schematic diagram of a water purification system according to some embodiments of the present invention;

fig. 2 is a schematic view of an angled post-filter element according to some embodiments of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a schematic view of a rear cartridge at another angle according to some embodiments of the present invention;

fig. 5 is a cross-sectional view of a cartridge and a central tube according to some embodiments of the present invention;

fig. 6 is a schematic structural view of a cartridge and a central tube according to some embodiments of the present invention;

fig. 7 is a perspective view of a cartridge and a central tube from above according to some embodiments of the present invention;

fig. 8 is a schematic structural view of an upper bracket according to some embodiments of the present invention;

fig. 9 is a bottom view of an upper bracket according to some embodiments of the present invention;

fig. 10 is a top view of an upper bracket according to some embodiments of the present invention.

Reference numerals:

a water purification system 100;

a rear filter element 10;

a filter cartridge 11; a water inlet 111; a water outlet 112; a filter chamber 113; a tub 115; an end cap 116;

a barrel 12; a central tube 121; a projection 122; a pressure accumulation chamber 123; a positioning slot 124; a reinforcing rib 125;

an upper bracket 13; a sleeve 131; positioning posts 1311; a bump 132; a through hole 133;

a lower bracket 14;

a filter material 15;

a sewage flow passage 16;

a front filter element 20; a booster pump 30; a reverse osmosis filter element 40; a high voltage switch 50.

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 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 exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1, a waterway of a water purification system 100 is generally provided with a booster pump 30, a reverse osmosis filter 40 and a post-filter 10, wherein a water outlet 112 of the post-filter 10 is connected with a water tap. A high-pressure switch 50 is arranged between the rear filter element 10 and the reverse osmosis filter element 40, when the faucet is started, the high-pressure switch 50 is switched off along with the reduction of the pressure of the water channel, and the water purification system 100 is started to produce water.

In the prior art, the delay is provided between the start point of the water purification system 100 and the time point when the reverse osmosis filter element 40 sends the pressure water to the rear filter element 10, which often causes the pressure water between the rear filter element 10 and the faucet to be released, and the pressure water of the reverse osmosis filter element 40 is not sent to the rear filter element 10, so that the faucet has a water cut-off phenomenon.

It is understood that, in order to improve the water purifying capacity of the water purifying system 100, the water purifying system 100 may further include a front filter element 20, and the raw water is filtered by the front filter element 20 and then is delivered to the reverse osmosis filter element 40 and the rear filter element 10 for filtering. In addition, it should be noted that the water outlet 112 of the rear filter element 10 may also be connected with a water outlet pipe, and is not limited to water outlet by means of a faucet.

Referring now to fig. 2-10, a rear cartridge 10 according to an embodiment of the present invention is described. As shown in fig. 2 in conjunction with fig. 3 and 4, the rear filter cartridge 10 includes a filter cartridge 11 having a water inlet 111 and a water outlet 112, the filter cartridge 11 is partitioned into a filter chamber 113 and a pressure accumulation chamber 123, wherein an inlet end of the filter chamber 113 is connected to the water inlet 111, and an outlet end of the pressure accumulation chamber 123 is connected to the water outlet 112.

That is, at least a part of the water after being filtered by the filter chamber 113 is stored in the pressure storage chamber 123, that is, a part of the pressure water produced by the water purification system 100 is retained in the pressure storage chamber 123, in other words, compared with the existing water purification system, only a part of the pressure water is retained in the pipeline between the faucet and the rear filter element 10, the embodiment of the present invention provides an additional pressure water storage chamber in the rear filter element 10, so that when the water purification system 100 is started, the pressure water between the faucet and the rear filter element 10 is discharged, the pressure storage chamber 123 can continuously supply the pressure water, and before the rear filter element 10 sends water to the rear filter element 10, the faucet can continuously output water, thereby avoiding the water cut-off problem in the use process of the water purification system 100.

Therefore, according to the embodiment of the present invention, the post-filter element 10 is provided with the pressure storage chamber 123 communicating with the filter chamber 113 in the filter cartridge 11, so that at least a part of pressure water is stored in the pressure storage chamber 123, and the water purification system 100 can continuously and stably discharge water before the water purification system 100 normally produces water.

In some embodiments, the outlet end of the filter cavity 113 is connected to the inlet end of the plenum 123. That is, the filter chamber 113 is directly communicated with the pressure storage chamber 123, so that the water filtered by the filter chamber 113 can directly flow into the pressure storage chamber 123, thereby reducing pressure loss and ensuring that the water in the pressure storage chamber 123 can keep stronger pressure. It will be appreciated that the closer to the water path of the reverse osmosis cartridge 40, the greater the pressure within the water path. The pressure water flowing out of the reverse osmosis filter element 40 flows into the filter element chamber through the water inlet 111 of the rear filter element 10 and is filtered again, and therefore, the pressure in the filter element chamber is higher than the pressure in the pressure accumulation chamber 123.

In some embodiments, the rear filter cartridge 10 further includes a cylinder 12 forming the pressure accumulation chamber 123, an inlet of the cylinder 12 is connected to an outlet of the filter chamber 113, and an outlet of the cylinder 12 is communicated with the water outlet 112. That is, the filtered water in the filter chamber 113 is drawn out through the cylindrical body 12 and sent out to the rear filter element 10. I.e., at least a portion of the pressurized water exiting the filter cavity 113 will be stored in the bowl 12. The cylinder 12 and the outlet of the filter cavity 113 may be directly connected or indirectly connected.

In an alternative embodiment, a central tube 121 is further disposed in the rear filter element 10, one end of the central tube 121 passes through the outlet of the cylinder 12, and the other end is embedded in the cylinder 12. That is, the inlet of the central tube 121 is equivalent to the outlet of the pressure accumulation cavity 123, the water path between the outlet and the inlet of the pressure accumulation cavity 123 is shortened through the central tube 121, and when the reverse osmosis filter element 40 sends water to the rear filter element 10 again, the water in the filter cavity 113 can be quickly guided into the central tube 121, so that the continuity of the water flow is ensured, and the water cut-off problem at the water outlet 112 of the water purification system 100 is further prevented.

The extending distance of the central tube 121 to the filter element cavity direction can be as long as possible, so that the water path between the inlet and the outlet of the pressure storage cavity 123 is shortened, and the pressure loss is reduced.

In an alternative embodiment, the water inlet 111 and the water outlet 112 are both located at the upper end of the filter cartridge 11, and the filter chamber 113 is located at the lower side of the pressure accumulation chamber 123. The water flows from top to bottom, and flows from bottom to top after being fully filtered in the filter element cavity and enters the water storage cavity. That is, the water flow must overcome its own gravity and the resistance of the filter material 15 to flow upward, so that the water flow can be effectively filtered and purified in the filter cavity 113, and the filtering capacity of the post-filter element 10 is improved.

Wherein, a lower water flow passage 16 is formed between the outer wall of the cylinder 12 and the inner wall of the filter cartridge 11, and the lower water flow passage 16 is communicated with the filter cavity 113. To prevent water from flowing between the sewage flow passage 16 and the pressure accumulation chamber 123, the upper end of the cylinder 12 is closed.

Referring to fig. 7, the top wall of the cylinder 12 is provided with a reinforcing rib 125, and the reinforcing rib 125 is connected to the outer wall of the central tube 121, so that the central tube 121 is prevented from deforming during use, and the structural stability of the central tube 121 is improved.

Further, a plurality of projections 122 are provided on the outer wall of the cylinder 12, and the projections 122 abut against the inner wall surface of the filter cartridge 11. The bowl 12 is prevented from rotating relative to the cartridge 11 by the plurality of projections 122.

In an alternative embodiment, as shown in fig. 3, an upper bracket 13 and a lower bracket 14 are further disposed in the filter cartridge 11, wherein the upper bracket 13 and the lower bracket 14 are opposite to each other and are spaced apart from each other, the upper bracket 13 is connected to the lower end of the bowl 12, the lower bracket 14 is connected to the filter cartridge 11, and a filter material 15 is disposed between the upper bracket 13 and the lower bracket 14. That is, the filter medium 15 is interposed between the upper frame 13 and the lower frame 14, and the filter medium 15 and the cylindrical body 12 connected to the upper frame 13 are supported by the lower frame 14, wherein the upper frame 13 is provided with a through hole 133 communicating the pressure accumulation chamber 123 and the filtration chamber 113, respectively.

In order to prevent the upper bracket 13 from rotating within the filter cartridge 11, referring to fig. 8 to 10, a plurality of protrusions 132 are provided at the circumference of the upper bracket 13.

In a further alternative embodiment, the filter cartridge 11 comprises: a barrel 115 with an open upper end and an end cover 116 for closing the opening of the barrel 115, wherein the water inlet 111 and the water outlet 112 are formed on the end cover 116, and one end of the central tube 121 is fixed on the end cover 116. That is, the barrel 115 is an open cavity structure, the lower support 14, the filter material 15, the upper support 13 and the barrel 12 can be placed in the barrel 115 in sequence, and finally the end cap 116 is installed at the open end of the filter cartridge 11. Wherein, the barrel body 115 and the end cover 116 can be connected by spin welding.

In an alternative embodiment, the upper bracket 13 is provided with a sleeve 131 inserted into the barrel 12, one of the sleeve 131 and the barrel 12 is provided with a positioning column 1311, and the other is provided with a positioning groove 124. For example, as shown in fig. 5-10, the positioning column 1311 is formed on the sleeve 131, the positioning groove 124 is formed on the barrel 12, and in order to facilitate the matching between the positioning groove 124 and the positioning column 1311, the positioning groove 124 includes a longitudinal groove extending through the wall thickness of the barrel 12 and extending in the vertical direction, and a circumferential groove extending through the wall thickness of the barrel 12 and extending in the circumferential direction, the longitudinal groove communicates with the circumferential groove, and the longitudinal groove has an opening facing downward, so that when the sleeve 131 is matched with the barrel 12, the positioning column 1311 can enter the longitudinal groove from the opening of the longitudinal groove, then move upward, and finally slide into the circumferential groove, thereby realizing the matching between the sleeve 131 and the barrel 12.

According to the utility model discloses water purification system 100 includes the rearmounted filter core 10 of above-mentioned embodiment, because according to the utility model discloses rearmounted filter core 10 of embodiment has reserved pressure water, consequently, can guarantee that water purification system 100 can go out water in succession steadily at the use initial stage.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 do not necessarily 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.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. A post-filter cartridge, comprising:

the filter cartridge is provided with a water inlet and a water outlet and is divided into a filter cavity and a pressure storage cavity, wherein the inlet end of the filter cavity is connected with the water inlet, and the outlet end of the pressure storage cavity is connected with the water outlet.

2. The post-filter cartridge of claim 1, wherein the outlet end of the filter chamber is connected to the inlet end of the plenum chamber.

3. The post-filter cartridge according to claim 1, further comprising a cartridge body forming the pressure accumulation chamber, wherein an inlet of the cartridge body is connected to an outlet of the filter chamber, and an outlet of the cartridge body is communicated with the water outlet.

4. The post-filter element of claim 3, further comprising a center tube disposed therein, wherein one end of the center tube passes through the outlet of the cylinder and the other end of the center tube is embedded in the cylinder.

5. The post-filter cartridge of claim 4, wherein the water inlet and outlet are both located at an upper end of the filter cartridge, and the filter chamber is located on a lower side of the pressure accumulation chamber.

6. The rear filter element as recited in claim 5, wherein an upper bracket and a lower bracket are disposed in the filter cylinder, the upper bracket and the lower bracket being opposite to each other and spaced apart from each other, the upper bracket being connected to the lower end of the cylinder, the lower bracket being connected to the filter cylinder, and a filter material being disposed between the upper bracket and the lower bracket.

7. The post-filter cartridge of claim 6, wherein the filter cartridge comprises: the water inlet and the water outlet are formed in the end cover, and one end of the central tube is fixed on the end cover.

8. The post-filter cartridge of claim 5, wherein the outer wall of the bowl is provided with a plurality of protrusions that abut against an inner wall surface of the filter cartridge.

9. The rear filter element as recited in claim 6, wherein the upper bracket is provided with a sleeve inserted into the barrel, one of the sleeve and the barrel is provided with a positioning column, and the other is provided with a positioning groove.

10. A water purification system comprising a post-filter cartridge according to any one of claims 1 to 9.