CN217855514U

CN217855514U - Filtering structure, filtering system and water purifier

Info

Publication number: CN217855514U
Application number: CN202221009558.2U
Authority: CN
Inventors: 田春宇; 余剑锋
Original assignee: Dreame Technology Suzhou Co ltd
Current assignee: Dreame Technology Suzhou Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-11-22
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses a filtration, filtration system and water purifier. The filtering structure comprises a central pipe body and a reverse osmosis membrane, wherein the cross section of the central pipe body is long and provided with two long sides and two short sides, the two short sides are arranged in an arc shape, the two long sides respectively comprise at least one straight line section connected between the two short sides, and at least one long side comprises a plurality of straight line sections and at least one arc section positioned between every two adjacent straight line sections; the reverse osmosis membrane is wound on the outer periphery of the central pipe body. The utility model discloses make the cross section of center body roughly be the runway type to make things convenient for reverse osmosis membrane to carry out the coiling, be provided with at least one arc segment moreover at long avris, through arc segment evagination in the straightway setting, make arc segment can exert certain pretightning force to the reverse osmosis membrane of coiling on the straightway, thereby can effectively avoid reverse osmosis membrane the phenomenon that appears collapsing after long-term the use, with keep filter effect, increase of service life.

Description

Filtering structure, filtering system and water purifier

Technical Field

The utility model relates to a technical field of water purification, concretely relates to filtration, filtration system and water purifier.

Background

The core component of the reverse osmosis water purifier is a reverse osmosis filter element, and the filtering principle of the existing reverse osmosis filter element is as follows: the raw water is filtered by the preposed filter element and then passes through the reverse osmosis filter element to obtain pure water. But traditional reverse osmosis filter core's filtration center tube generally is cylindric setting for it is short to filter the runner, and effective filtration area is little, thereby easily forms old water, when the user does not use for a long time, leads to the first glass of water quality of water of preparation after shutting down poor, is unfavorable for the health. At present some filter cores are long in order to increase effective filtering area, and the filtering central tube is arranged, but when the long central tube is wound with a reverse osmosis filtering membrane, the reverse osmosis membrane is easy to collapse after being used for a long time due to the existence of a long straight line segment, and the filtering effect is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that traditional filtration area is little, perhaps reverse osmosis membrane easily collapses, influences the filter effect.

In order to solve the technical problem, the utility model provides a filtering structure, include:

the cross section of the central tube body is long, the central tube body is provided with two long sides and two short sides, the two short sides are arranged in an arc shape, the two long sides respectively comprise at least one straight line section connected between the two short sides, and at least one long side comprises a plurality of straight line sections and at least one arc line section positioned between every two adjacent straight line sections; and

and the reverse osmosis membrane is wound on the outer peripheral side of the central pipe body.

Optionally, the two long sides of the filtering structure each include two straight segments and an arc segment located between the two straight segments, and the two short sides are connected to the two straight segments on each long side respectively.

Optionally, in the filter structure, two long sides are asymmetrically arranged; and/or the presence of a gas in the atmosphere,

the two short sides are arranged asymmetrically.

Optionally, the ratio of the length of the long side to the length of the short side of the filter structure is greater than 2.

Optionally, the filter structure has a total length of an arc segment of the central tube in a circumferential direction along the cross section of the central tube, which is greater than a total length of a straight segment of the central tube.

Optionally, the two short sides of the filtering structure comprise a first short side and a second short side, the two long sides comprise a first long side and a second long side, the first long side comprises a first straight line section, a first circular arc section and a second straight line section which are sequentially connected, the first straight line section is connected with the first short side, the second straight line section is connected with the second short side, the second long side comprises a third straight line section, a second circular arc section and a fourth straight line section which are sequentially connected, the third straight line section is connected with the second short side, and the fourth straight line section is connected with the first short side;

wherein the first straight line segment is parallel to the third straight line segment; the second linear segment is parallel to the fourth linear segment; and/or the presence of a gas in the atmosphere,

the first straight line segment, the second straight line segment, the third straight line segment and the fourth straight line segment are arranged in a different mode.

The utility model also provides a filtration system, include:

the filter shell is provided with a raw water inlet and a pure water outlet;

the filtration, filtration locate in the filter shell, certainly raw water import gets into the interior liquid of filter shell is through reverse osmosis membrane filters the back, gets into in the center tube body, and the flow is to the pure water export.

Optionally, in the filtering system, a limiting structure is arranged on an inner wall of the filtering shell, and the limiting structure abuts against an outer peripheral side of the reverse osmosis membrane.

Optionally, in the filtering system, the limiting structure includes a plurality of limiting ribs protruding from the inner wall of the filtering shell, and the plurality of limiting ribs are arranged along the circumferential direction of the filtering shell.

The utility model provides a water purifier, include filtration system.

The utility model provides a technical scheme has following advantage:

the utility model provides a filtering structure, including central body and reverse osmosis membrane, the cross section of central body is microscler to be set up, and have two long avris and two short avris, make the week side area of central body bigger, thus the area of the reverse osmosis membrane around locating on it is bigger, therefore the effective filtration area of filtering structure can be bigger, the filtration capacity is bigger; be the arcuation setting with two short avris, with the long avris including at least one straightway, make the cross section of center body roughly be the runway type, thereby make things convenient for reverse osmosis membrane to carry out the coiling, be provided with at least one arc line section in long avris moreover, outwards bulge out the straightway through the arc line section and set up, make the arc line section can apply certain pretightning force to the reverse osmosis membrane of coiling on the straightway, thereby can effectively avoid reverse osmosis membrane to appear the phenomenon of coming loose after long-term the use, in order to keep the filter effect. This filtration has not only increased filter area for the filtration volume is bigger, can keep reverse osmosis membrane's rate of tension moreover, makes filtration's filter effect better, and life is longer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a filtration system provided by the present invention;

FIG. 2 is a schematic diagram of another perspective of the filtration system of FIG. 1;

FIG. 3 is a schematic structural view of the filter structure of FIG. 2;

FIG. 4 is a schematic view of the central tube of FIG. 1;

FIG. 5 is a schematic cross-sectional view of the central tube of FIG. 4;

fig. 6 is a schematic cross-sectional view of the filter structure of fig. 3.

Description of reference numerals:

1000-a filtration system; 100-a filter shell; 110-a limiting structure; 1101-limit convex ribs; 200-a filter structure; 1-a central tube body; 11-short side; 12-long side; 121-a first straight line segment; 122-a second straight line segment; 123-a third straight line segment; 124-fourth straight line segment; 125-first arc segment; 126-a second arc segment; 2-reverse osmosis membrane.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In the present application, where the contrary is not intended, the use of directional terms such as "upper, lower, top, bottom" generally refer to the orientation as shown in the drawings, or to the component itself being oriented in a vertical, perpendicular, or gravitational direction; similarly, "inner and outer" refer to the inner and outer relative to the contours of the components themselves for ease of understanding and description, but the above directional terms are not intended to limit the invention.

Example 1

Referring to fig. 3 and 4, the filtering structure 200 includes a central tube 1 and a reverse osmosis membrane 2 surrounding the outer periphery of the central tube 1, the central tube 1 is hollow, and in the process of purifying water, pure water filtered by the reverse osmosis membrane 2 can flow into the central tube 1 to flow to a pure water outlet for use; the cross section of the central tube body 1 is long, preferably, the shape of the central tube body 1 is matched with the shape of the filter shell 100 of the filter system 1000, the central tube body 1 is provided with two long sides 12 and two short sides 11, the two short sides 11 are arc-shaped, the two long sides 12 comprise at least one straight line segment, so that the cross section of the central tube body 1 is approximately in a runway shape, and therefore the reverse osmosis membrane 2 is convenient to wind, and the at least one long side 12 comprises a plurality of straight line segments and at least one arc line segment positioned between the two adjacent straight line segments, so that the transition part of the straight line segments is in smooth transition, the arc line segments and the straight line segments are in tangent arrangement, the arc line segments are outwards protruded out of the straight line segments, so that the arc line segments can apply certain pre-tightening force to the reverse osmosis membrane 2 wound on the straight line segments, and therefore, the phenomenon that the reverse osmosis membrane 2 is loosened after long-term use can be effectively avoided, and the filter effect is maintained. This filtration 200 has not only increased filtration area for the filtration volume is bigger, can keep reverse osmosis membrane 2's rate of tension moreover, makes filtration 200's filter effect better, and life is longer.

Preferably, as shown in fig. 4, each of the two long sides 12 includes two straight line segments and an arc line segment located between the two straight line segments, and the two upper short sides 11 are respectively connected to the two straight line segments of each of the long sides 12, so that each of the long sides 12 is provided with the arc line segment, thereby preventing the straight line segment from being too long and preventing the reverse osmosis membrane 2 wound around the straight line segment from being easily loosened. Certainly, the radian of each arc segment is difficult too big, avoids jack-up reverse osmosis membrane 2, and makes the clearance too big between reverse osmosis membrane 2 and the central body 1, and preferably, the arc segment all is tangent setting with adjacent straightway, can laminate reverse osmosis membrane 2 in the outside of central body 1, and has exerted certain pretension tension to reverse osmosis membrane 2 to keep reverse osmosis membrane 2's rate of tension.

Preferably, two long avris 12 are asymmetric settings, because filtration system 1000's filtration shell 100 generally is symmetrical structure, when filtration structure 200 was placed in filtration shell 100, if filtration structure 200 also is symmetrical structure, the risk of misloading appeared easily, installer probably need go on trying by mistake to find the correct installation orientation, it is comparatively time-consuming to install, consequently, is asymmetric settings with filtration structure 200's long avris 12, can find the correct installation orientation more fast, the installation effectiveness is higher.

Similarly, the two short sides 11 can also be asymmetrically arranged, the two short sides 11 are arranged in a staggered manner on the symmetry axis along the filter shell 100, and the connecting line of the two short sides 11 and the symmetry axis of the filter shell 100 are obliquely arranged at a certain angle, so that the installation direction can be easily judged when the filter shell is installed.

And, the length of long avris 12 and the length of short avris 11 are difficult too big than, too big long avris 12 can make the straightway great, and be unfavorable for reverse osmosis membrane 2's tensioning, and too short long avris 12, make the space in the filter shell 100 can not obtain rational utilization, and can not effectively increase filtration 200's filter area, preferably, the length of long avris 12 and the length of short avris 11's ratio are greater than 2, can increase effectual filter area, make filtration 200's filter capacity bigger, can guarantee again that reverse osmosis membrane 2 has sufficient tensile force, keep rate of tension, the result of use is better.

Preferably, the total length of the arc segment of the central tube body 1 is greater than the total length of the straight segment of the central tube body 1 in the circumferential direction along the cross section of the central tube body 1, because the arc segment is longer than the straight segment in the same distance, so that more reverse osmosis membranes 2 can be wound, the filtration area can be increased, and the tensity of the reverse osmosis membranes 2 can be maintained.

Specifically, as shown in fig. 4, the two short sides 11 include a first short side 11 and a second short side 11, the two long sides 12 include a first long side 12 and a second long side 12, the first long side 12 includes a first straight line segment 121, a first circular arc segment 125 and a second straight line segment 122 connected in sequence, the first straight line segment 121 is connected to the first short side 11, the second straight line segment 122 is connected to the second short side 11, the second long side 12 includes a third straight line segment 123, a second circular arc segment 126 and a fourth straight line segment 124 connected in sequence, the third straight line segment 123 is connected to the second short side 11, the fourth straight line segment 124 is connected to the first short side 11, the first straight line segment 121, the first circular arc segment 125, the second straight line segment 122, the second short side 11, the third circular arc segment 123, the second straight line segment 126 and the fourth straight line segment 124 are connected end to end in sequence; the first straight line segment 121 is parallel to the third straight line segment 123, and the second straight line segment 122 is parallel to the fourth straight line segment 124, so as to facilitate processing.

The first straight line segment 121, the second straight line segment 122, the third straight line segment 123 and the fourth straight line segment 124 are arranged differently, the first straight line segment 121, the second straight line segment 122, the third straight line segment 123 and the fourth straight line segment 124 may not be identical, that is, the lengths are different, or the length of the first straight line segment 121 is the same as that of the third straight line segment 123, and the lengths of the second straight line segment 122 and the fourth straight line segment 124 are the same, and the first straight line segment 121, the second straight line segment 122, the third straight line segment 123 and the fourth straight line segment 124 may be arranged according to a specific structure, which is not limited herein.

Example 2

The present embodiment further provides a filtering system 1000, as shown in fig. 1 and fig. 2, the filtering system 1000 includes a filtering shell 100 and the filtering structure 200, the filtering shell 100 is provided with a raw water inlet and a pure water outlet, the filtering structure 200 is disposed in the filtering shell 100, liquid entering the filtering shell 100 from the raw water inlet can be filtered by the reverse osmosis membrane 2, and the formed pure water flows into the inner cavity of the central tube 1 and then flows out to the pure water outlet along the inner cavity of the central tube 1, so as to form pure water for users to use. As shown in fig. 4, a plurality of water passing holes are formed on the peripheral side wall of the central tube 1, and pure water filtered by the reverse osmosis membrane 2 can enter the inner cavity of the central tube 1 through the water passing holes, specifically, refer to the flow direction of liquid in fig. 6, wherein the dashed arrow indicates the flow direction of the liquid, and the portion at the bottom end in fig. 6 is the water outlet of the central tube 1.

Specifically, the filtering system 1000 further includes an end cap, wherein a water outlet nozzle is disposed at one end of the inner cavity of the central tube body 1 to form a water outlet of the central tube body 1, a via hole is disposed at one end of the end cap, which is disposed on the filtering structure 200, and the water outlet nozzle is disposed in the via hole and communicated with the pure water outlet, so that pure water can be led out.

Further, be equipped with limit structure 110 on the inner wall of filtering shell 100, limit structure 110 butt in reverse osmosis membrane 2's periphery side for in filtering shell 100 is fixed in with filtration 200 is spacing, avoid filtration 200 to rock.

Preferably, as shown in fig. 2, the limiting structure 110 includes a plurality of limiting ribs 1101 convexly provided on the inner wall of the filter shell 100, and the plurality of limiting ribs 1101 are arranged along the circumferential direction of the filter shell 100, so that the filter structure 200 is more stable. Moreover, the protruding heights of the plurality of limiting convex ribs 1101 can be set differently, when the filter structure 200 is installed in a wrong way, the filter structure 200 cannot be installed into the filter shell 100 in a wrong direction under the effect of the limiting convex ribs 1101, and the wrong installation preventing effect is better.

Example 3

This embodiment provides a water purifier, and this water purifier includes foretell filtration system 1000, makes the equipment of water purifier more swift through this filtration system 1000, and filtration system 1000's effective water purification area is bigger moreover, and water purification efficiency is higher, and the water yield of pure water is bigger, and the user uses and experiences the sense better.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, a person skilled in the art can make changes or changes in other different forms without creative work, and all should belong to the protection scope of the present invention.

Claims

1. A filter structure, comprising:

2. The filtration structure of claim 1, wherein each of said long sides comprises two straight segments and an arc segment between said two straight segments, and wherein said two short sides are connected to said two straight segments of each of said long sides.

3. The filtration structure of claim 1, wherein two of said long sides are asymmetrically disposed; and/or the presence of a gas in the gas,

the two short sides are arranged asymmetrically.

4. The filter structure of claim 1, wherein the ratio of the length of said long sides to the length of said short sides is greater than 2.

5. The filter structure of claim 1, wherein a total length of an arc segment of the central tube is greater than a total length of a straight segment of the central tube in a circumferential direction along a cross section of the central tube.

6. The filtration structure of claim 1, wherein two of said short sides comprise a first short side and a second short side, and two of said long sides comprise a first long side and a second long side, said first long side comprising a first straight segment, a first circular arc segment and a second straight segment connected in sequence, said first straight segment being connected to said first short side, said second straight segment being connected to said second short side, said second long side comprising a third straight segment, a second circular arc segment and a fourth straight segment connected in sequence, said third straight segment being connected to said second short side, said fourth straight segment being connected to said first short side;

wherein the first straight line segment is parallel to the third straight line segment; the second linear segment is parallel to the fourth linear segment; and/or the presence of a gas in the gas,

7. A filtration system, comprising:

the filter shell is provided with a raw water inlet and a pure water outlet;

the filter structure according to any one of claims 1 to 6, which is provided in the filter housing, and in which liquid introduced into the filter housing from the raw water inlet is filtered by the reverse osmosis membrane, introduced into the central tubular body, and flows toward the pure water outlet.

8. The filtration system of claim 7, wherein a limit structure is provided on an inner wall of the filter housing, the limit structure abutting against an outer circumferential side of the reverse osmosis membrane.

9. The filtration system of claim 8, wherein the retaining structure comprises a plurality of retaining ribs protruding from an inner wall of the filter housing, the plurality of retaining ribs being arranged along a circumferential direction of the filter housing.

10. A water purifier characterized by comprising a filter system according to any one of claims 7 to 9.