Filter element and water purification equipment

Abstract

The utility model discloses a filter element and water purification equipment, and relates to the technical field of water purification equipment manufacturing, the filter element comprises an outer shell and an inner shell, the outer shell is provided with an accommodating space and comprises a fluid inlet and a fluid outlet, and the fluid inlet and the fluid outlet are both used for communicating the accommodating space with the outside; the inner shell is accommodated in the accommodating space and comprises at least two mutually separated filter spaces and filter materials filled in the filter spaces; the outer shell is movably connected with the inner shell, so that each filtering space is communicated with the outside through the fluid inlet and the fluid outlet in sequence. The filter element and the water purification equipment provided by the technical scheme of the utility model aim to prolong the service life of the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment manufacturing, in particular to a filter element and water purification equipment. Background Art

[0002] After the filter element of the related technology is installed in the water purification equipment, the filter element as a whole is usually used to filter the fluid. In this way, the purification effect can be guaranteed in the early stage of filter element replacement, and exceeds the quality requirements by a lot. However, as time goes by, the filter element as a whole ages and needs to be replaced as a whole, and the service life is short. Utility Model Content

[0003] The main purpose of the utility model is to provide a filter element and a water purification device, aiming to increase the service life of the entire filter element.

[0004] To achieve the above-mentioned purpose, the utility model provides a filter element, which includes an outer shell and an inner shell, wherein the outer shell has a accommodating space and includes a fluid inlet and a fluid outlet, and the fluid inlet and the fluid outlet are both used to connect the accommodating space with the outside world; the inner shell is accommodated in the accommodating space, and includes at least two mutually separated filter spaces and filter materials filled in each filter space; the outer shell and the inner shell are movably connected so that each filter space is used to communicate with the outside world through the fluid inlet and the fluid outlet in turn.

[0005] In some embodiments, the outer shell is rotatably connected to the inner shell, and the plurality of filter spaces are rotationally symmetrical along a rotation axis between the outer shell and the inner shell.

[0006] In some embodiments, the outer shell includes a first end wall and a second end wall arranged opposite to each other along a first direction, the fluid inlet is arranged on the first end wall, and the fluid outlet is arranged on the second end wall; the filter element also includes a driving member, which is arranged outside the accommodating space and connected to the inner shell to drive the inner shell to rotate along an axis parallel to the first direction.

[0007] In some embodiments, the outer shell also includes a first side wall connecting the first end wall and the second end wall, and the inner shell includes a second side wall; the cross-sectional shapes of the first side wall and the second side wall along a cross-sectional shape perpendicular to the first direction are both circular, and the radial inner wall surface of the first side wall abuts against the radial outer wall surface of the second side wall.

[0008] In some embodiments, the inner shell further includes a third end wall, the third end wall is disposed at an end of the second side wall close to the driving member, and the driving member is connected to the third end wall.

[0009] In some embodiments, the inner shell also includes a partition wall, which is arranged in the inner shell and divides the internal space of the inner shell into at least two filter spaces; a plurality of through holes are arranged on the inner shell, and in a single filter space, there is at least one through hole connecting the filter space with the fluid inlet, and at the same time, there is at least one through hole connecting the filter space with the fluid outlet.

[0010] In some embodiments, the number of the partition walls is two, and in a plane perpendicular to the first direction, the two partition walls intersect to divide the inner space of the inner shell into four filter spaces.

[0011] In some embodiments, the first end wall is provided with an avoidance hole extending along the first direction, the inner shell further comprises a connecting boss, and the connecting line between the connecting boss and the avoidance hole is parallel to the first direction; at least part of the driving member passes through the avoidance hole and is connected to the connecting boss.

[0012] In some embodiments, the driving member is detachably connected to the connecting boss.

[0013] An embodiment of the utility model further provides a water purification device, which includes a filter element as provided in any of the aforementioned embodiments.

[0014] The technical solution of the utility model is to provide an inner shell including at least two mutually separated filter spaces, and to provide an outer shell and an inner shell movably connected, so that each filter space is used to communicate with the outside world through a fluid inlet and a fluid outlet in turn. During use, the filter material in a single filter space can be used to filter and purify the fluid, and when the filter material in the filter space is lost and the filtering and purification effect is reduced, other filter spaces can be connected to the fluid inlet and the fluid outlet through the movable connection between the inner shell and the outer shell, and the filter material in the converted filter space can be used to continue to filter and purify the fluid. This can improve the situation in which the filter element utilization rate of the related technology is low and the large-area filter element is easy to be contaminated during use, thereby increasing the overall service life of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a filter element provided in one embodiment of the utility model;

[0017] Figure 2 This is a schematic exploded view of the three-dimensional structure of a filter element provided in one embodiment of the utility model;

[0018] Figure 3 yes Figure 1 The cross-sectional view of the filter element shown along line AA;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of an inner shell of a filter element provided by an embodiment of the utility model at one angle.

[0020] Description of Figure Numbers:

[0021] 100, filter element; 10, housing; 11, fluid inlet; 12, fluid outlet; 13, first end wall; 131, avoidance hole; 14, second end wall; 15, first side wall; 20, inner housing; 21, filter material; 22, second side wall; 23, third end wall; 24, fourth end wall; 25, partition wall; 26, through hole; 27, connecting boss; 30, driving member;

[0022] 101, accommodating space; 102, filtering space; X, first direction.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] After the filter element of the related technology is installed in the water purification equipment, the filter element as a whole is usually used to filter the fluid. In this way, the purification effect can be guaranteed in the early stage of filter element replacement, and exceeds the quality requirements by a lot. However, as time goes by, the filter element as a whole ages and needs to be replaced as a whole, and the service life is short.

[0028] Specifically, after a new filter element is connected to the fluid purification equipment, since the filter layer structures of the filter material have not been contaminated by the fluid, the filter material has a stronger ability to filter pollutants in the fluid, and there is no risk of residual pollutants being washed downstream and flowing out through the fluid outlet. Therefore, generally speaking, the filtering capacity of the filter element at this time often exceeds the quality requirements.

[0029] Based on this, in the related technology, the inner shell of the filter element is not divided into areas, and the filter material is used as a whole to filter and purify the fluid. As the number of times the filter element is used increases, pollutants will accumulate in the various layers of the filter material, and then gradually pollute the entire filter element. When the pollution reaches a certain level, the overall filtering capacity of the filter element decreases significantly, and the entire element needs to be replaced, and the service life is short.

[0030] In view of the above situation, the inventor has designed an inner shell with multiple separated areas. During use, the inner shell and the outer shell can be flexibly connected to each other to connect different areas of the inner shell to the filter materials of the fluid inlet and the fluid outlet in turn, so as to improve the problem of the overall low service life of the filter element.

[0031] Figure 1 It is a three-dimensional structural schematic diagram of a filter element provided in one embodiment of the utility model; Figure 2 This is a schematic exploded view of the three-dimensional structure of a filter element provided in one embodiment of the utility model; Figure 3 yes Figure 1 The cross-sectional view of the filter element shown along line AA; Figure 4 It is a schematic diagram of the three-dimensional structure of an inner shell of a filter element provided by an embodiment of the utility model at one angle.

[0032] Please refer to Figures 1 to 4 The utility model provides a filter element 100, which includes an outer shell 10 and an inner shell 20, wherein the outer shell 10 has a accommodating space 101 and includes a fluid inlet 11 and a fluid outlet 12, and the fluid inlet 11 and the fluid outlet 12 are both used to connect the accommodating space 101 with the outside; the inner shell 20 is accommodated in the accommodating space 101, and includes at least two mutually separated filter spaces 102 and filter materials 21 filled in each filter space 102; the outer shell 10 and the inner shell 20 are movably connected so that each filter space 102 is used to communicate with the outside through the fluid inlet 11 and the fluid outlet 12 in turn.

[0033] The filter element 100 is a consumable material used in purification equipment. It is a core component that plays a purification role in various purification equipment. During the operation of the purification equipment, the fluid flows into the filter element 100 from one end, passes through the internal filter material 21, and flows out from the other end of the filter element 100, so as to utilize the multi-layer structure of the filter material 21 to filter out large particles of impurities, small particles of impurities and other harmful substances in the fluid in turn.

[0034] In these embodiments of the present invention, the fluid acted on by the filter element 100 can be gas, liquid, or a gas-liquid mixture. The following description will only take the case where the fluid is liquid as an example.

[0035] The outer shell 10 is the outer structural component of the filter element 100 and is used to limit the external shape of the filter element 100 so as to adapt to different types of water purification equipment. At the same time, the outer shell 10 can also play a protective and sealing role, providing a stable working environment for the normal operation of the filter element 100.

[0036] The housing 10 has a containing space 101 and includes a fluid inlet 11 and a fluid outlet 12, which means that the housing 10 can be configured as an enclosing structure to enclose a containing space 101 isolated from the outside world; the fluid inlet 11 and the fluid outlet 12 are both used to connect the containing space 101 with the outside world, which means that the fluid inlet 11 is the inlet for the fluid to be filtered to enter the filter element 100, and the fluid outlet 12 is the outlet for the fluid to flow out of the filter element 100 after filtering and purification.

[0037] The structures of the fluid inlet 11 and the fluid outlet 12 may be recessed inward from the outer surface of the housing 10 , or may be protruding outward, and the selection may be made according to the model of the water purification device.

[0038] The fluid inlet 11 and the fluid outlet 12 are respectively disposed at two ends of the multi-layer structure of the filter material 21 , so that the fluid passes through each filter layer of the filter material 21 during the filtering process, thereby improving the filtering and purification effect of the fluid.

[0039] The inner shell 20 is accommodated in the accommodation space 101 , wherein the inner shell 20 is a component in the filter element 100 for placing the filter material 21 , so as to maintain the structural form of the filter material 21 in the accommodation space 101 and improve the structural stability of the filter material 21 .

[0040] The inner shell 20 includes at least two mutually separated filter spaces 102, which means that the inner shell 20 can also be a surrounding structure, and at least two mutually separated filter spaces 102 are formed. The filter material 21 is filled in each filter space 102 to filter and purify the fluid in each mutually separated filter space 102.

[0041] Among them, at least two mutually separated filter spaces 102 may be arranged in a possible manner: each filter space 102 is arranged in sequence along a straight line. At this time, the movable connection mode between the outer shell 10 and the inner shell 20 can be set as a sliding connection, and the connecting line between the fluid inlet 11 and the fluid outlet 12 is perpendicular to the straight line on which each filter space 102 is arranged in sequence. When a new filter space 102 needs to be replaced for filtering, the inner shell 20 can be slid along the straight line on which each filter space 102 is arranged in sequence compared to the outer shell 10 to change the relative position relationship between the inner shell 20 and the outer shell 10, and connect different filter spaces 102 to the fluid inlet 11 and the fluid outlet 12.

[0042] In some embodiments, each filter space 102 can also be arranged along a curve in sequence. At this time, the movable connection mode between the outer shell 10 and the inner shell 20 can also be set as a sliding connection. The connecting line between the fluid inlet 11 and the fluid outlet 12 is perpendicular to the plane where the curves in which each filter space 102 is arranged in sequence are located. When a new filter space 102 needs to be replaced for filtering, the inner shell 20 can be slid compared to the outer shell 10 along the curves in which each filter space 102 is arranged in sequence.

[0043] Each filter space 102 is used to communicate with the outside world through the fluid inlet 11 and the fluid outlet 12 in turn, that is, each filter space 102 is independent of each other, and only one filter space 102 is connected to the outside world through the fluid inlet 11 and the fluid outlet 12 in the same time period, thereby playing a role in filtering the fluid. At this time, other filter spaces 102 are in standby state or have lost their filtering function.

[0044] The technical solution of the utility model is to set an inner shell 20 including at least two mutually separated filter spaces 102, and set an outer shell 10 and the inner shell 20 to be movably connected, so that each filter space 102 is used to communicate with the outside world through the fluid inlet 11 and the fluid outlet 12 in turn. During use, the filter material 21 in a single filter space 102 can be used to filter and purify the fluid, and when the filter material 21 in the filter space 102 is lost and the filtering and purification effect is reduced, other filter spaces 102 can be connected to the fluid inlet 11 and the fluid outlet 12 through the movable connection between the inner shell 20 and the outer shell 10, and the filter material 21 in the converted filter space 102 can be used to continue to filter and purify the fluid, which can improve the low utilization rate of the filter element in the related technology and the large area of ​​the filter element is easy to be contaminated during use, thereby prolonging the overall service life of the filter element.

[0045] In some embodiments, the outer shell 10 is rotatably connected to the inner shell 20 , and the plurality of filter spaces 102 are rotationally symmetrical along the rotation axis between the outer shell 10 and the inner shell 20 .

[0046] The outer shell 10 is rotatably connected to the inner shell 20. A possible implementation is that the filter spaces 102 of the inner shell 20 are rotationally symmetrical, and the inner shell 20 is provided with a rotating shaft for rotationally connecting to the inner wall of the outer shell 10 at the position of the rotation center axis. In this way, the inner shell 20 can rotate relative to the outer shell 10 along the rotating shaft to change the relative position relationship between each filter space 102 and the fluid inlet 11 and the fluid outlet 12.

[0047] In these embodiments of the present invention, the fluid inlet 11 and the fluid outlet 12 can be arranged on the end faces of the shell 10 corresponding to the two ends of the aforementioned rotating shaft, so as to improve the smoothness of the fluid flow when the fluid inlet 11 and the fluid outlet 12 are connected in different filter spaces 102, reduce the backflow in the filter material 21, and improve the filtering effect of the fluid.

[0048] Furthermore, in these embodiments of the present invention, the fluid inlet 11 and the fluid outlet 12 can be arranged on the same side of the outer shell 10 corresponding to the aforementioned rotating shaft. In this way, the side of the outer shell 10 where the fluid inlet 11 and the fluid outlet 12 are arranged can be used as the working position of the filter element 100. When each filter space 102 is rotated to the working position, it can be connected with the fluid inlet 11 and the fluid outlet 12, and then enter the working state; at the same time, the filter space 102 with poor filtering effect can also be moved to the non-working position of the outer shell 10 through the rotation between the inner shell 20 and the outer shell 10 at the same time, and will not affect other filter spaces 102.

[0049] In these embodiments of the present invention, a rotating movable connection method is adopted between the outer shell 10 and the inner shell 20. Compared with the aforementioned sliding connection method, the volume of the outer shell 10 can be reduced, which is conducive to the miniaturization of the product or frees up design space for other components inside the filter element 100.

[0050] In some embodiments, the outer shell 10 includes a first end wall 13 and a second end wall 14 arranged opposite to each other along a first direction X, the fluid inlet 11 is arranged on the first end wall 13, and the fluid outlet 12 is arranged on the second end wall 14; the filter element 100 also includes a driving member 30, which is arranged outside the accommodating space 101 and connected to the inner shell 20 to drive the inner shell 20 to rotate along an axis parallel to the first direction X.

[0051] The first end wall 13 and the second end wall 14 are arranged opposite to each other along the first direction X, which means that the first end wall 13 and the second end wall 14 are respectively two end walls of the shell 10 at both ends of the first direction X. Since the shell 10 is a surrounding structure, a possible implementation method is that the shell 10 includes a side wall structure and an end wall structure, and the side wall structure is provided with an opening at at least one end along the first direction X, and the end wall structure covers the opening to form a surrounding structure together with the side wall structure.

[0052] That is to say, in some embodiments, the aforementioned side wall structure may be a structure with openings at both ends along the first direction X. In this case, the two end wall structures located at both ends of the side wall structure along the first direction X may be the first end wall 13 and the second end wall 14, respectively; in some embodiments, the aforementioned side wall structure may be a structure with an opening at one end along the first direction X. In this case, the end wall structure covering the opening may be one of the first end wall 13 and the second end wall 14, and the end wall opposite to the end wall structure in the aforementioned side wall structure is the other of the first end wall 13 and the second end wall 14.

[0053] The fluid inlet 11 is arranged on the first end wall 13, and the fluid outlet 12 is arranged on the second end wall 14, that is, the fluid inlet 11 and the fluid outlet 12 are respectively arranged at the two ends of the outer shell 10 along the first direction X. This is conducive to simplifying the arrangement of the filter material 21 in the inner shell 20. The filter layers of the filter material 21 only need to be arranged in sequence in the first direction X, and the structure is simple and easy to install.

[0054] The function of the driving member 30 is to drive the inner shell 20 to move relative to the outer shell 10. In these embodiments of the present invention, the driving member 30 is arranged outside the accommodating space 101. Its purpose is to facilitate user operation, so that when the filtering capacity of a filtering space 102 decreases, the inner shell 20 can be quickly driven to move relative to the outer shell 10 to utilize the new filtering space 102 to filter the fluid.

[0055] The driving member 30 is connected to the inner shell 20 to drive the inner shell 20 to rotate along an axis parallel to the first direction X. In these embodiments of the utility model, the driving member 30 can be a knob connected to the inner shell 20. At this time, the user can drive the inner shell 20 to rotate relative to the outer shell 10 by turning the knob; in some embodiments, the driving member 30 can also be set to a common motor or connecting rod structure for driving an object to rotate, so as to improve the degree of automation of the inner shell 20 drive, reduce the user's operating steps, and improve the user experience.

[0056] Of course, when the movable connection between the inner shell 20 and the outer shell 10 is not a rotational connection, the driving member 30 can be used to drive the inner shell 20 to slide relative to the outer shell 10 .

[0057] In some embodiments, the outer shell 10 also includes a first side wall 15 connecting the first end wall 13 and the second end wall 14, and the inner shell 20 includes a second side wall 22; the cross-sectional shapes of the first side wall 15 and the second side wall 22 along the cross-sectional shape perpendicular to the first direction X are both circular, and the radial inner wall surface of the first side wall 15 abuts against the radial outer wall surface of the second side wall 22.

[0058] The first side wall 15 connects the first end wall 13 and the second end wall 14. A possible implementation method is that the first side wall 15 and the first end wall 13 and the second end wall 14 are all connected in a detachable manner such as a snap connection, a threaded connection, etc.; or, in some embodiments, the first side wall 15 can be fixedly connected to one of the first end wall 13 and the second end wall 14, and detachably connected to the other.

[0059] The second side wall 22 is a structural component of the inner shell 20 , and is used to cooperate with other wall structures of the inner shell 20 to enclose the aforementioned filtering space 102 .

[0060] It should be noted that the cross-sectional shape of the first side wall 15 and the second side wall 22 along the direction perpendicular to the first direction X can be, but is not limited to, circular, rectangular, triangular, etc., wherein the shape of the first side wall 15 is used to match with different types of water purification equipment to facilitate the replacement of the filter element 100; the shape of the second side wall 22 is used to adapt to filter spaces 102 of different shapes, and each filter space 102 can change its working position by rotation within the accommodating space 101.

[0061] The cross-sectional shapes of the first side wall 15 and the second side wall 22 along the direction perpendicular to the first direction X can be set to the same shape or different shapes. For example, in some embodiments, the cross-sectional shapes of the first side wall 15 and the second side wall 22 along the direction perpendicular to the first direction X can be set to be circular. In some embodiments, the cross-sectional shape of the first side wall 15 along the direction perpendicular to the first direction X can also be set to be rectangular, and the cross-sectional shape of the second side wall 22 along the direction perpendicular to the first direction X can be set to be circular. The above can be selected according to actual conditions, and the utility model does not limit this.

[0062] In these embodiments of the utility model, the cross-sectional shapes of the first side wall 15 and the second side wall 22 along the perpendicular direction X can be both circular, and the radial inner wall surface of the first side wall 15 abuts against the radial outer wall surface of the second side wall 22. In this way, the first side wall 15 and the second side wall 22 are arranged in a circular cross-sectional shape, and the gap that may exist between the second side wall 22 and the first side wall 15 can be minimized under the premise of ensuring that the inner shell 20 and the outer shell 10 can rotate relative to each other (in other settings, a certain gap needs to be set between the second side wall 22 and the first side wall 15 so that the inner shell 20 and the outer shell 10 can rotate relative to each other), so that the structure of the filter element 100 is more compact, which is conducive to the miniaturization design of the filter element 100.

[0063] In some embodiments, the inner shell 20 further includes a third end wall 23 . The third end wall 23 is disposed at one end of the second side wall 22 close to the driving member 30 . The driving member 30 is connected to the third end wall 23 .

[0064] The third end wall 23 is a structural member of the inner shell 20, wherein the third end wall 23 is disposed at one end of the second side wall 22 close to the driving member 30, which means that the third end wall 23 is connected to the second side wall 22 and is located at one end of the second side wall 22 close to the driving member 30. The connection between the third end wall 23 and the second side wall 22 can be a detachable connection such as a snap connection, a threaded connection, or a fixed connection such as welding or even integral molding.

[0065] In these embodiments of the utility model, the inner shell 20 further includes a fourth end wall 24, which is opposite to the third end wall 23 along the first direction X and is located at both ends of the second side wall 22 along the first direction X. In some embodiments, an adaptive rotating structure may be provided between the fourth end wall 24 and the second end wall 14, so that when the driving member 30 is connected to the third end wall 23 and drives the inner shell 20 to rotate relative to the outer shell 10, a driven rotation occurs between the fourth end wall 24 and the third end wall 23; in some embodiments, the fourth end wall 24 may also be provided to be connected to the driving member 30, so that the driving member 30 can simultaneously drive the inner shell 20 to rotate relative to the outer shell 10 from both ends of the inner shell 20 along the first direction X, and the driving efficiency is higher.

[0066] Correspondingly, the fourth end wall 24 and the second side wall 22 may also be connected by a detachable connection such as a snap connection or a threaded connection. In some embodiments, a fixed connection such as welding or even an integral molding may also be used.

[0067] In some embodiments, the inner shell 20 also includes a partition wall 25, which is arranged in the inner shell 20 and divides the internal space of the inner shell 20 into at least two filter spaces 102; a plurality of through holes 26 are arranged on the inner shell 20, and in a single filter space 102, there is at least one through hole 26 connecting the filter space 102 with the fluid inlet 11, and at the same time, there is at least one through hole 26 connecting the filter space 102 with the fluid outlet 12.

[0068] The function of the partition wall 25 is to partition the internal space of the inner shell 20 to form at least two independent filter spaces 102. In these embodiments of the present invention, the partition wall 25 can be arranged parallel to the first direction X so that each filter space 102 is connected along the first direction X.

[0069] The partition wall 25 is disposed in the inner shell 20, which means that the partition wall 25 is disposed in the inner space of the inner shell 20 surrounded by the second side wall 22, the third end wall 23 and the fourth end wall 24, and is respectively connected to the second side wall 22, the third end wall 23 and the fourth end wall 24.

[0070] In these embodiments of the utility model, the internal space of the inner shell 20 is divided into at least two filter spaces 102 by a partition wall 25, so that during the use of the filter element 100, different filter spaces 102 can be switched to be connected with the fluid inlet 11 and the fluid outlet 12 through the movable connection between the inner shell 20 and the outer shell 10, thereby changing the working position of each filter space 102.

[0071] The through hole 26 is a structure that connects each filter space 102 with the fluid inlet 11 and the fluid outlet 12. Therefore, in a single filter space 102, there is at least one through hole 26 connecting the filter space 102 with the fluid inlet 11, and at the same time, there is at least one through hole 26 connecting the filter space 102 with the fluid outlet 12.

[0072] In these embodiments of the utility model, the through hole 26 can be arranged on the third end wall 23 and the fourth end wall 24, wherein the through hole 26 on the third end wall 23 is used to connect with the fluid inlet 11 when the filtering space 102 is in the working position, and at the same time, the through hole 26 on the fourth end wall 24 is used to connect with the fluid outlet 12 when the filtering space 102 is in the working position, so as to form a fluid filtering channel of fluid inlet 11-through hole 26-filtering space 102-through hole 26-fluid outlet 12.

[0073] In some embodiments, the number of the partition walls 25 is two, and in a plane perpendicular to the first direction X, the two partition walls 25 intersect to divide the inner space of the inner shell 20 into four filter spaces 102 .

[0074] In these embodiments of the present invention, the two partition walls 25 may be integrally formed to increase the structural consistency between the partition walls 25 and improve the degree of separation between the filter spaces 102 .

[0075] For example, in some embodiments, two partition walls 25 may be arranged to be perpendicular to each other.

[0076] In some embodiments, the first end wall 13 is provided with an avoidance hole 131 extending along the first direction X, and the inner shell 20 also includes a connecting boss 27, and the connecting line between the connecting boss 27 and the avoidance hole 131 is parallel to the first direction X; at least a portion of the driving member 30 passes through the avoidance hole 131 and is connected to the connecting boss 27.

[0077] In these embodiments of the present invention, by providing the avoidance hole 131 penetrating along the first direction X on the first end wall 13 , the connection between the driving member 30 and the inner shell 20 is facilitated.

[0078] The function of the connecting boss 27 is to connect with the driving member 30 . In the embodiments of the present invention, the connecting boss 27 may be arranged to protrude from the third end wall 23 along the first direction X toward the first end wall 13 .

[0079] The connecting line between the connecting boss 27 and the avoidance hole 131 is parallel to the first direction X, which means that the connecting boss 27 and the avoidance hole 131 are opposite to each other along the first direction X, so as to facilitate the connection between the driving member 30 and the connecting boss 27 after passing through the avoidance hole 131. In these embodiments of the utility model, a gap may be provided between the driving member 30 and the hole wall of the avoidance hole 131 to reduce the influence of the first end wall 13 on the driving effect of the driving member 30, and the reliability is higher.

[0080] In some embodiments, the driving member 30 is detachably connected to the connecting boss 27 , so as to reduce the difficulty of disassembling the filter element 100 after recycling, and facilitate the reuse of the filter element 100 after replacing the filter material 21 in the filter space 102 .

[0081] Exemplarily, in some embodiments, the driving member 30 may include an operating rod and a driving rod connected to the operating rod, wherein the operating rod is used to be arranged outside the accommodating space 101, and at least a portion of the driving rod extends into the accommodating space 101 and is detachably connected to the connecting boss 27.

[0082] In this way, during the use of the filter element 100 , the user can rotate the inner shell 20 by rotating the operating rod, thereby changing the working position of each filter space 102 .

[0083] In these embodiments of the utility model, a snap-fit ​​connection is adopted between the driving rod and the connecting boss 27. A groove is provided on the end face of the connecting boss 27 close to the avoidance hole 131. The driving rod can pass through the avoidance hole 131 and be inserted into and snapped into the groove, thereby realizing the connection between the driving member 30 and the inner shell 20.

[0084] Exemplarily, the cross-sectional shape of the groove along the direction perpendicular to the first direction X may be a polygon, so as to reduce the difficulty of the driving rod driving the inner shell 20 to rotate during the use of the filter element 100 .

[0085] The embodiment of the utility model further provides a water purification device, which includes a filter element 100 provided in any of the aforementioned embodiments.

[0086] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A filter element, characterized in that: include: The housing has a containing space and includes a fluid inlet and a fluid outlet, wherein the fluid inlet and the fluid outlet are used to connect the containing space with the outside; An inner shell is contained in the containing space and comprises at least two mutually separated filter spaces and filter materials filled in each of the filter spaces; The outer shell is movably connected to the inner shell so that each of the filter spaces is connected to the outside through the fluid inlet and the fluid outlet in sequence.

2. The filter element according to claim 1, characterized in that: The outer shell is rotatably connected to the inner shell, and the plurality of filter spaces are rotationally symmetrical along a rotation axis between the outer shell and the inner shell.

3. The filter element according to claim 2, characterized in that: The housing comprises a first end wall and a second end wall which are arranged opposite to each other along a first direction, the fluid inlet is arranged on the first end wall, and the fluid outlet is arranged on the second end wall; The filter element further includes a driving member, which is disposed outside the accommodating space and connected to the inner shell to drive the inner shell to rotate along an axis parallel to the first direction.

4. The filter element according to claim 3, characterized in that: The outer shell further comprises a first side wall connecting the first end wall and the second end wall, and the inner shell comprises a second side wall; The cross-sectional shapes of the first side wall and the second side wall along the direction perpendicular to the first direction are both circular, and the inner wall surface of the first side wall along the radial direction abuts against the outer wall surface of the second side wall along the radial direction.

5. The filter element according to claim 4, characterized in that: The inner shell further comprises a third end wall, the third end wall is arranged at one end of the second side wall close to the driving member, and the driving member is connected to the third end wall.

6. The filter element according to claim 3, characterized in that: The inner shell further comprises a partition wall, which is disposed in the inner shell and divides the inner space of the inner shell into at least two filtering spaces; The inner shell is provided with a plurality of through holes, and in a single filtering space, at least one of the through holes connects the filtering space with the fluid inlet, and at the same time, at least one of the through holes connects the filtering space with the fluid outlet.

7. The filter element according to claim 6, characterized in that The number of the partition walls is two, and in a plane perpendicular to the first direction, the two partition walls intersect to divide the inner space of the inner shell into four filter spaces.

8. The filter element according to any one of claims 3 to 7, characterized in that: The first end wall is provided with an avoidance hole penetrating along a first direction, and the inner shell further comprises a connecting boss, and a connecting line between the connecting boss and the avoidance hole is parallel to the first direction; At least a portion of the driving member passes through the avoidance hole and is connected to the connecting boss.

9. The filter element according to claim 8, characterized in that The driving member is detachably connected to the connecting boss.

10. A water purification device, characterized in that: Comprising a filter element as described in any one of claims 1 to 9.

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