Framework assembly, filter element and water purifier

Abstract

The utility model relates to the technical field of water treatment, and particularly discloses a framework assembly of a filter element, the filter element and a water purifier, the framework assembly of the filter element comprises a framework and an end cover, the framework is provided with a first end part, a second end part and a first channel, and the first end part is provided with a first interface communicated with the first channel; the end cover comprises an insertion pipe, at least one part of the insertion pipe is inserted into the first connector, the end cover is provided with a first positioning part, the framework is provided with a second positioning part, one of the first positioning part and the second positioning part is a positioning convex part, the other one of the first positioning part and the second positioning part is a positioning concave part, and the positioning convex part is arranged in the positioning concave part. According to the framework assembly of the filter element, the insertion pipe is arranged on the end cover and communicated with the first channel, the pipeline of the filter element is optimized, in addition, the first positioning part is arranged on the end cover, and the second positioning part is arranged on the framework, so that the framework and the end cover can be quickly positioned during installation, and the installation efficiency of the framework assembly is improved; and the structural stability of the framework assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, and particularly relates to a skeleton assembly of a filter element, a filter element and a water purifier. Background Art

[0002] The water purification device removes impurities and pollutants in water through a multi-stage filtration system. The filter element is a key core component of the water purification device, and the water flow path in the filter element affects the filtration efficiency, the size of the filter element, etc. Summary of the Utility Model

[0003] An object of the utility model is to provide a skeleton assembly of a filter element, which can optimize the pipeline of the filter element.

[0004] Another object of the utility model is to provide a filter element including the aforementioned skeleton assembly.

[0005] A further object of the utility model is to provide a water purifier including the aforementioned skeleton assembly or including the aforementioned filter element.

[0006] The skeleton assembly of the filter element according to an embodiment of the utility model includes: a skeleton and an end cap. The skeleton has a first end, a second end and a first channel, and a first interface communicating with the first channel is provided at the first end; the end cap includes an insertion tube, and at least a part of the insertion tube is inserted into the first interface. Wherein, the end cap is provided with a first positioning part, the skeleton is provided with a second positioning part, one of the first positioning part and the second positioning part is set as a positioning convex part, and the other is set as a positioning concave part, and the positioning convex part is arranged in the positioning concave part.

[0007] The skeleton assembly of the filter element according to an embodiment of the utility model optimizes the pipeline of the filter element by arranging an insertion tube on the end cap and the insertion tube communicating with the first channel. In addition, by arranging a first positioning part on the end cap and a second positioning part on the skeleton, it is convenient to quickly position the skeleton and the end cap during installation, improve the installation efficiency of the skeleton assembly, and improve the structural stability of the skeleton assembly.

[0008] In addition, the skeleton assembly of the filter element according to the above embodiment of the utility model may further have the following additional technical features:

[0009] In some embodiments, the first positioning part is arranged on the outer peripheral surface of the insertion tube, and the second positioning part is arranged on the inner peripheral surface of the skeleton.

[0010] In some embodiments, the first positioning part is a positioning convex part, the second positioning part is set as the positioning concave part, and the dimension of the positioning convex part along the radial direction of the insertion tube is d3, where d3≥1mm.

[0011] In some embodiments, the end cap further includes an end plate disposed outside the first end of the skeleton, the first positioning portion is disposed on the surface of the end plate, and the second positioning portion is disposed on the end surface of the first end of the skeleton.

[0012] In some embodiments, the skeleton further has a second channel. The skeleton includes a first elongated portion and a second elongated portion arranged side by side. The first channel is disposed in the first elongated portion, the second channel is disposed in the second elongated portion. The first elongated portion and the second elongated portion are arranged side by side, and the first elongated portion and the second elongated portion are symmetrically distributed, or the first elongated portion and the second elongated portion are asymmetrically distributed.

[0013] In some embodiments, the skeleton includes a first side wall, a second side wall, and an intermediate wall. The first side wall is connected to the intermediate wall, and the first channel is disposed therebetween. The second side wall is connected to the intermediate wall, and the second channel is disposed therebetween. The first side wall and the second side wall are formed as arcs with different radii.

[0014] In some embodiments, the skeleton further includes a first joint connected to the first elongated portion, and the first interface is disposed on the first joint; or the skeleton further includes a second joint connected to the second elongated portion, and the second joint is provided with a second interface communicating with the second channel.

[0015] In some embodiments, the first interface includes a first section and a second section connected to each other. One end of the first section is open and the other end is connected to the second section. The inner diameter of the first section is larger than the inner diameter of the second section, and the cannula is inserted through the first section and the second section.

[0016] In some embodiments, a positioning groove is provided on the outer peripheral surface of the cannula, and the skeleton assembly further includes a sealing ring disposed in the positioning groove, and the sealing ring abuts against the inner peripheral surface of the skeleton.

[0017] In some embodiments, the skeleton is integrally formed.

[0018] A filter element according to an embodiment of the present invention includes: the aforementioned skeleton assembly, a first filter medium, and a cylinder. The first filter medium surrounds the periphery of the skeleton, and a first cavity is formed between the first filter medium and the skeleton support; the cylinder has a receiving cavity for receiving the first filter medium, and a second cavity is formed between the cylinder and the first filter medium; wherein, the cannula communicates with the second cavity.

[0019] In some embodiments, the central axis of the first filter medium is offset from the central axis of the first end.

[0020] In some embodiments, the filter element further includes: a second filter medium and a housing. The second filter medium is disposed around the periphery of the skeleton, and a third cavity is formed between the second filter medium and the skeleton support. The second filter medium is disposed inside the housing, and a fourth cavity is formed between the housing and the second filter medium.

[0021] In some embodiments, the skeleton is provided with a flange, and the accommodating cavity is formed between the cylinder body and the flange.

[0022] The water purifier according to the embodiment of the present invention includes the aforementioned skeleton assembly or includes the aforementioned filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the skeleton assembly according to the embodiment of the present invention.

[0024] Figure 2 is an exploded schematic diagram of the skeleton assembly according to the embodiment of the present invention.

[0025] Figure 3 is a cross-sectional schematic diagram of the skeleton assembly according to the embodiment of the present invention.

[0026] Figure 4 is Figure 3 an enlarged schematic diagram of circle A in

[0027] Figure 5 is a cross-sectional view of the skeleton assembly according to the embodiment of the present invention, in which the skeleton and the end cap are in an unassembled state.

[0028] Figure 6 is Figure 5 an enlarged schematic diagram of circle B in

[0029] Figure 7 is a schematic diagram of the skeleton according to the embodiment of the present invention.

[0030] Figure 8 is a cross-sectional schematic diagram of the skeleton according to the embodiment of the present invention.

[0031] Figure 9 is a cross-sectional schematic diagram of the skeleton in another direction according to the embodiment of the present invention.

[0032] Figure 10 is a cross-sectional schematic diagram of the filter element according to the embodiment of the present invention.

[0033] Figure 11 is a cross-sectional schematic diagram of the filter element according to the embodiment of the present invention.

[0034] Figure 12 is a cross-sectional schematic diagram of the filter element according to the embodiment of the present invention, which shows the water flow direction.

[0035] Figure 13 This is a cross-sectional schematic view of the filter element according to an embodiment of the present invention, showing the water flow direction in another embodiment.

[0036] Reference numerals:

[0037] Filter element 1000, skeleton assembly 100, skeleton 10, first end 11, first interface 111, first section 1111, second section 1112, second end 12, first channel 131, second channel 132, inlet 1321, second positioning portion 14, positioning recess 141, first elongated portion 151, second elongated portion 152, first side wall 161, second side wall 162, intermediate wall 163, first joint 171, second joint 172, second interface 1721, end cap 20, insertion tube 21, end plate 22, first positioning portion 23, positioning protrusion 231, sealing ring 30, flange 40, first filter medium 200, first cavity 210, cylinder 300, second cavity 320, second filter medium 400, third cavity 410, fourth cavity 420, outer shell 500. Detailed description of the embodiments

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0039] Combined with Figure 1 and Figure 2 , according to the skeleton assembly 100 of the embodiment of the present invention, it can be applied to the filter element 1000 of a water purifier. The skeleton assembly 100 includes: a skeleton 10 and an end cap 20. The skeleton 10 has a first end 11, a second end 12, and a first channel 131. The first end 11 is provided with a first interface 111 communicating with the first channel 131. The first channel 131 can be configured to pass water. Exemplarily, the first channel 131 can be an inlet water flow channel or an outlet water flow channel. The end cap 20 can include an insertion tube 21, and at least a part of the insertion tube 21 is inserted into the first interface 111. In other words, all of the insertion tube 21 can be inserted into the first interface 111 of the skeleton 10, or a part of the insertion tube 21 is inserted into the first interface 111 of the skeleton 10. That is to say, after the end cap 20 is installed on the skeleton 10, a part of the insertion tube 21 can be exposed. After the insertion tube 21 is inserted into the first interface 111, the water in the first channel 131 can be diverted through the insertion tube 21, or the water can be diverted to the first channel 131 through the insertion tube 21.

[0040] In addition, inserting the insertion tube 21 of the end cap 20 into the first interface 111 can facilitate the positioning of the installation of the end cap 20 and improve the installation efficiency.

[0041] Among them, in combination with Figure 2 and Figure 4 , the end cap 20 is provided with a first positioning portion 23, and the skeleton 10 is provided with a second positioning portion 14. One of the first positioning portion 23 and the second positioning portion 14 is set as a positioning convex portion 231, and the other is set as a positioning concave portion 141, and the positioning convex portion 231 is arranged in the positioning concave portion 141. In other words, the end cap 20 may be provided with the positioning convex portion 231, and the skeleton 10 is provided with the positioning concave portion 141; or, the end cap 20 is provided with the positioning concave portion 141, and the skeleton 10 is provided with the positioning convex portion 231. By providing the first positioning portion 23 on the end cap 20 and the second positioning portion 14 on the skeleton 10, the first positioning portion 23 and the second positioning portion 14 can quickly position the installation of the skeleton 10 and the end cap 20, improve the installation efficiency of the skeleton assembly 100, and the positioning convex portion 231 is arranged in the positioning concave portion 141, which can limit the skeleton 10 and the end cap 20, prevent relative rotation between the skeleton 10 and the end cap 20, and improve the structural stability of the skeleton assembly 100.

[0042] For the skeleton assembly 100 according to the embodiment of the present invention, by providing an insertion tube 21 on the end cap 20, and the insertion tube 21 communicates with the first channel 131, the water in the first channel 131 can be diverted through the end cap 20, or the water outside the end cap 20 can be diverted into the first channel 131, optimizing the pipeline of the filter element 1000. In addition, by providing the first positioning portion 23 on the end cap 20 and the second positioning portion 14 on the skeleton 10, it is convenient to quickly position the skeleton 10 and the end cap 20 during installation, improve the installation efficiency of the skeleton assembly 100, and improve the structural stability of the skeleton assembly 100.

[0043] The skeleton assembly 100 of the present invention can be used for the filter element 1000, and the filter element 1000 may include but is not limited to the following embodiments:

[0044] Embodiment 1

[0045] In combination with Figure 3 and Figure 12, the first channel 131 can be an inlet water flow channel, the second end 12 can be the water inlet end of the first channel 131, the first end 11 can be the water outlet end of the first channel 131. After the water flows to the first end 11, it can be diverted to the outside of the end cap 20 through the insertion tube 21. It should be noted that the outside of the end cap 20 mentioned here refers to the side of the end cap 20 away from the first end 11. The skeleton assembly 100 can be used for the filter element 1000. Exemplarily, the filter element 1000 can also include a first filter medium 200, a cylinder 300, etc. The first filter medium 200 can be disposed around the periphery of the skeleton 10. A first cavity 210 can be constructed between the first filter medium 200 and the skeleton 10. The cylinder 300 has a receiving cavity. The first filter medium 200 can be disposed in the receiving cavity, and a second cavity 320 is constructed between the first filter medium 200 and the receiving cavity. The insertion tube 21 can communicate with the second cavity 320. The water in the first channel 131 can be diverted to the second cavity 320 through the insertion tube 21, filtered by the first filter medium 200, and then enter the first cavity 210. The connection between the first channel 131 of the skeleton 10 and the second cavity 320 can be realized through the end cap 20, which is convenient for guiding the water to flow from the first channel 131 into the second cavity 320, optimizing the pipeline of the filter element 1000, and facilitating the filtration of water.

[0046] Embodiment 2

[0047] The first channel 131 can be an outlet water flow channel, the first end 11 can be the water inlet end of the first channel 131, the second end 12 can be the water outlet end of the first channel 131. The water outside the end cap 20 can be led into the first channel 131 through the insertion tube 21 and discharged through the second end 12. It should be noted that the outside of the end cap 20 mentioned here refers to the side of the end cap 20 away from the first end 11. The skeleton assembly 100 can be used for the filter element 1000. Exemplarily, the filter element 1000 can also include a first filter medium 200, a cylinder 300, etc. The first filter medium 200 can be disposed around the periphery of the skeleton 10. A first cavity 210 can be constructed between the first filter medium 200 and the skeleton 10. The cylinder 300 has a receiving cavity. The first filter medium 200 can be disposed in the receiving cavity, and a second cavity 320 is constructed between the first filter medium 200 and the receiving cavity. The insertion tube 21 can communicate with the second cavity 320. The raw water can first enter the first cavity 210, and after being filtered by the first filter medium 200, it enters the second cavity 320. The water in the second cavity 320 can be diverted into the first channel 131 through the end cap 20 and discharged from the second end 12. By providing the insertion tube 21 on the end cap 20 to communicate with the first channel 131, it is convenient to divert the water in the second cavity 320 into the first channel 131, optimizing the pipeline of the filter element 1000.

[0048] The first positioning portion 23 and the second positioning portion 14 can be provided at different positions. Exemplarily, the first positioning portion 23 can be provided on the outer peripheral surface of the cannula 21, and the second positioning portion 14 can be provided on the inner peripheral surface of the frame 10; alternatively, the second positioning portion 14 can be provided on the end surface of the first end portion 11 of the frame 10, and the first positioning portion 23 can be provided on a side surface of the end cap 20 close to the first end portion 11.

[0049] The end cap 20 can have opposite first and second side surfaces. The cannula 21 can be provided on the first side surface, and a through hole can be provided on the second side surface of the end cap 20. The through hole communicates with the cannula 21.

[0050] In addition, a first channel 131 is provided between the first end portion 11 and the second end portion 12 of the frame 10. Only the first channel 131 can be provided in the frame 10. Of course, a second channel 132 can also be provided in the frame 10. Exemplarily, the first channel 131 can be an inlet water flow channel, and the second channel 132 can be an outlet water flow channel; or, the second channel 132 is an inlet water flow channel, and the first channel 131 is an outlet water flow channel. By integrating the first flow channel and the second flow channel into the frame 10, the structure of the frame 10 is made compact, and the space utilization rate is improved.

[0051] Combined Figure 3 and Figure 4 In some embodiments of the present utility model, the first positioning portion 23 is provided on the outer peripheral surface of the cannula 21, and the second positioning portion 14 is provided on the inner peripheral surface of the frame 10. After the cannula 21 is inserted into the first interface 111, the cooperation between the first positioning portion 23 and the second positioning portion 14 can limit the cannula 21 and the frame 10, improving the structural stability of the frame assembly 100.

[0052] Combined Figure 5 and Figure 6 Further, a positioning convex portion 231 can be provided on the outer peripheral surface of the cannula 21, and a positioning concave portion 141 is provided on the inner peripheral surface of the frame 10. Among them, a groove can be provided on the inner peripheral wall of the frame 10 to form the positioning concave portion 141; or, a part of the peripheral wall of the frame 10 protrudes radially outward to form the positioning concave portion 141. That is to say, the position of the outer peripheral wall of the frame 10 corresponding to the positioning concave portion 141 protrudes outward.

[0053] Combined Figure 6 In some embodiments of the present utility model, the dimension of the positioning convex portion 231 in the radial direction is d3, where d3≥1 mm, reducing the processing and forming difficulty of the frame assembly 100 and being able to play a role in rapid positioning.

[0054] In some embodiments of the present utility model, the end cap 20 further includes an end plate 22. The end plate 22 is disposed outside the first end portion 11 of the skeleton 10. The first positioning portion 23 is disposed on the surface of the end plate 22, and the second positioning portion 14 is disposed on the end face of the first end portion 11 of the skeleton 10. When installing the end cap 20, the first positioning portion 23 of the end cap 20 can be aligned with the second positioning portion 14 of the skeleton 10, so as to facilitate the quick positioning of the end cap 20 and the skeleton 10 and improve the installation efficiency of the skeleton assembly 100.

[0055] Combined with Figure 7 and Figure 8 , in some embodiments of the present utility model, the skeleton 10 further has a second channel 132. The skeleton 10 includes a first elongated portion 151 and a second elongated portion 152 arranged side by side. The first channel 131 is disposed in the first elongated portion 151, and the second channel 132 is disposed in the second elongated portion 152. The first elongated portion 151 and the second elongated portion 152 are arranged side by side, making the structure of the skeleton 10 compact, improving the space utilization rate of the filter element 1000, and the skeleton 10 integrates two channels, which can reduce the number of components of the filter element 1000.

[0056] Among them, the first elongated portion 151 and the second elongated portion 152 may be symmetrically distributed. In the projection along the axial direction, the first elongated portion 151 and the second elongated portion 152 may be symmetrically distributed, which is convenient for the processing and forming of the skeleton 10; or, the first elongated portion 151 and the second elongated portion 152 are asymmetrically distributed. Exemplarily, in the projection along the axial direction, the shapes of the first elongated portion 151 and the second elongated portion 152 are different, which is convenient for improving the space utilization rate outside the skeleton 10.

[0057] Combined with Figure 9 , further, the skeleton 10 includes a first side wall 161, a second side wall 162 and an intermediate wall 163. The first side wall 161 is connected to the intermediate wall 163, and the first channel 131 is disposed therebetween. In other words, the first channel 131 is disposed between the first side wall 161 and the intermediate wall 163; the second side wall 162 is connected to the intermediate wall 163, and the second channel 132 is disposed therebetween. In other words, the second channel 132 is disposed between the second side wall 162 and the intermediate wall 163. Among them, the first side wall 161 and the second side wall 162 are provided as arcs with different radii.

[0058] Combined with Figure 9 , exemplarily, the first side wall 161 may be an arc shape, and the second side wall 162 may also be an arc shape. Among them, the radius of the first side wall 161 is greater than the radius of the second side wall 162, and the arch height of the first side wall 161 is less than the arch height of the second side wall 162. Among them, combined with Figure 6As shown, the radius of the first side wall 161 is R1, the radius of the second side wall 162 is R2, the arch height of the first side wall 161 is h1, and the arch height of the second side wall 162 is h2, where R1 > R2 and h1 < h2. Thus, an asymmetric structure is constructed for the first side wall 161 and the second side wall 162. The second side wall 162 has a small radius, and the space outside the second side wall 162 can be fully utilized to fill powder and granular filter media, optimizing the filtering effect of the filter element 1000. Moreover, the outside of the second side wall 162 can be used to limit and shape the powder and granular filter media, improving the space utilization rate of the filter media. Of course, the radius of the first side wall 161 can also be smaller than the radius of the second side wall 162, and the arch height of the first side wall 161 is greater than the arch height of the second side wall 162. The present utility model does not make any limitation in this regard.

[0059] It should be noted that the arch height of the aforementioned side wall refers to the vertical distance from the lowest point to the highest point of the arc.

[0060] Combined with the foregoing, the first elongated portion 151 and the second elongated portion 152 can be asymmetrically distributed, and the first side wall 161 and the second side wall 162 are provided as arcs with different radii, so as to construct a space for filling powder, granular and other filter media outside the first side wall 161 or the second side wall 162. Therefore, the first channel 131 and the second channel 132 can be of an asymmetric structure, and the central axis at the first end portion 11 of the framework 10 can deviate from the central axis of the first filter medium 200. The end cap 20 includes an insertion tube 21 and an end plate 22, and the central axis of the insertion tube 21 deviates from the central axis of the end plate 22.

[0061] Exemplarily, combined with Figure 10 , the first elongated portion 151 and the second elongated portion 152 can be asymmetrically distributed, and the first end portion 11 communicates with the first channel 131. Therefore, the central axis at the first end portion 11 is eccentric with respect to the filter element 1000. Referring to Figure 10 , the median axis at the first end portion 11 of the framework 10 is a, and the central axis of the first filter medium 200 is b, where a and b are not on the same straight line and deviate from each other.

[0062] By providing a second positioning portion 14 on the framework 10 and a first positioning portion 23 on the end cap 20, when installing the end cap 20 onto the framework 10, the first positioning portion 23 can be aligned with the second positioning portion 14 to achieve rapid positioning of the end cap 20 and the insertion tube 21. Therefore, by providing the first positioning portion 23 and the second positioning portion 14, an anti-fooling effect can also be achieved, improving the installation efficiency of the framework assembly 100.

[0063] Combined with Figure 7 and Figure 8, in some embodiments of the present utility model, the framework 10 further includes a first joint 171. The first joint 171 is connected to the first elongated portion 151, and the first interface 111 is provided on the first joint 171; alternatively, the framework 10 further includes a second joint 172. The second joint 172 is connected to the second elongated portion 152, and the second joint 172 is provided with a second interface 1721 communicating with the second channel 132.

[0064] Among them, the first joint 171 is provided at the first end portion 11 of the framework 10, and the first joint 171 is connected to the end cap 20. The second joint 172 is provided at the second end portion 12, and the second interface 1721 can be connected to the water inlet and outlet joints of the filter element 1000. Exemplarily, the first channel 131 can be an inlet water flow channel, and the second channel 132 can be an outlet water flow channel. After water enters from the first channel 131, it passes through the filter and exits from the second channel 132, optimizing the flow path of the filter element 1000 and improving the space utilization rate of the filter element 1000.

[0065] Optionally, one end of the first channel 131 can be provided on the circumferential surface of the second end portion 12, and the other end can be provided on the end face of the first end portion 11. One end of the second channel 132 can be provided on the circumferential surface of the framework 10 (between the first end portion 11 and the second end portion 12), and the other end can be provided on the end face of the second end portion 12.

[0066] Combined Figure 6 , in some embodiments of the present utility model, the first interface 111 includes a first section 1111 and a second section 1112 connected to each other. One end of the first section 1111 is open and the other end is connected to the second section 1112. In the projection along the axial direction, the inner circumferential surface of the first section 1111 is disposed around the outer side of the inner circumferential surface of the second section 1112, and the insertion tube 21 is inserted through the first section 1111 and the second section 1112. Specifically, the inner circumferential surface of the first section 1111 expands outward relative to the inner circumferential surface of the second section 1112. The insertion tube 21 is inserted into the first interface 111. During installation, the insertion tube 21 first passes through the first section 1111 and then through the second section 1112. The inner circumferential surface of the first section 1111 expands outward, and the first section 1111 can play a role of pre-positioning, which can facilitate the installation of the insertion tube 21 and improve the assembly efficiency.

[0067] Among them, the insertion tube 21 can be provided with a positioning convex portion 231, and the inner circumferential surface of the first section 1111 can be provided with a positioning concave portion 141, which can facilitate the installation of the end cap 20 and facilitate the cooperation between the insertion tube 21 and the framework 10 after installation.

[0068] In some embodiments of the present utility model, a positioning groove is provided on the outer peripheral surface of the intubation tube 21. The skeleton assembly 100 further includes a sealing ring 30 disposed in the positioning groove, and the sealing ring 30 abuts against the inner peripheral surface of the skeleton 10. By providing the positioning groove to position the sealing ring 30, the structural stability of the sealing ring 30 is improved, and during the process of installing the intubation tube 21 onto the skeleton 10, the displacement of the sealing ring 30 can be avoided, thereby improving the sealing performance of the skeleton assembly 100.

[0069] Further, the sealing ring 30 can abut against the inner peripheral surface of the second section 1112 to improve the sealing effect.

[0070] In some embodiments of the present utility model, the skeleton 10 is integrally formed, which improves the structural strength of the skeleton 10 and is convenient for the processing and forming of the skeleton 10. Among them, the integral forming of the skeleton 10 can be realized by an injection molding process.

[0071] The filter element 1000 according to the embodiment of the present utility model includes the aforementioned skeleton assembly 100. By providing the aforementioned skeleton assembly 100, the pipeline of the filter element 1000 is optimized, the installation efficiency of the skeleton assembly 100 is improved, and the structural stability of the skeleton assembly 100 is improved.

[0072] Combined with Figure 11 furthermore, the skeleton assembly 100 may further include a first filter medium 200 and a cylinder 300. The first filter medium 200 is disposed around the periphery of the skeleton 10, and a first cavity 210 is formed between the first filter medium 200 and the skeleton 10; the cylinder 300 has a receiving cavity for receiving the first filter medium 200, and a second cavity 320 is formed between the cylinder 300 and the first filter medium 200; wherein, the intubation tube 21 communicates with the second cavity 320.

[0073] Exemplarily, the first channel 131 can be configured as a water inlet channel. Water can enter the first channel 131 from the second end 12, and is guided to the second cavity 320 through the intubation tube 21 of the end cap 20. The water in the second cavity 320 passes through the first filter medium 200 and is filtered into the second cavity 320. By means of radial filtration, the filtration area can be effectively increased, thereby increasing the flow rate and reducing the size and volume of the filter element 1000 assembly.

[0074] Among them, the end cap 20 may further include an end plate 22, and the end plate 22 can be used to position the first filter medium 200. In this way, the layout of the filter element 1000 is made compact, and the installation efficiency of the filter element 1000 can be improved.

[0075] Exemplarily, the skeleton 10 may also be provided with a flange 40, and a receiving cavity is constructed between the cylindrical body 300 and the flange 40. Specifically, the flange 40 is connected to the skeleton 10 and is axially opposite to the end cap 20 along the skeleton 10. The flange 40 covers the cylindrical body 300 and constructs a closed receiving cavity with the cylindrical body 300. A first filter medium 200 may be provided in the receiving cavity. There is a first cavity 210 between the first filter medium 200 and the skeleton 10, and a second cavity 320 between the first filter medium 200 and the cylindrical body 300.

[0076] On one side of the flange 40 facing the end plate 22 and on one side of the end plate 22 facing the flange 40, fixing grooves surrounding the skeleton 10 are provided. Both ends of the first filter medium 200 are respectively positioned in the fixing grooves, thereby realizing the positioning of the first filter medium 200. At the same time, the first cavity 210 and the second cavity 320 are separated to facilitate the filtration of water through the first filter medium 200.

[0077] Thus, after the end cap 20 is installed on the skeleton 10, on the one hand, the water in the first channel 131 can be diverted into the second cavity 320 through the insertion tube 21, optimizing the flow path of the filter element 1000 and facilitating the filtration of water through the first filter medium 200. On the other hand, the first filter element 1000 can be positioned through the end cap 20, optimizing the overall structure of the filter element 1000.

[0078] Furthermore, the skeleton 10 further has a second channel 132, and one end of the second channel 132 communicates with the first cavity 210. Exemplarily, the second channel 132 can be configured as an outlet flow channel, and the water filtered by the first filter element 1000 can flow out through the second channel 132. Thus, the skeleton 10 has both an inlet flow channel and an outlet flow channel, improving the space utilization rate of the filter element 1000.

[0079] Combined with Figure 12 , exemplarily, an inlet 1321 may be provided on the outer peripheral surface of the skeleton 10, and the first cavity 210 and the second channel 132 are communicated through the inlet 1321. Combined with the attached Figure 12 , the arrow shows the flow direction of water. Specifically, after the water enters the first channel 131, it is diverted to the second cavity 320 between the cylindrical body 300 and the first filter medium 200 through the insertion tube 21, then enters the first cavity 210 after being filtered by the first filter medium 200, and then enters the second channel 132 through the inlet 1321.

[0080] Combined with Figure 10 , in some embodiments of the present invention, the central axis of the first filter medium 200 and the central axis of the first end portion 11 are mutually offset, and the central axis of the insertion tube 21 does not coincide with the central axis of the first filter medium 200. The space outside the skeleton 10 can be utilized to construct a space for filling filter media such as powders and granules.

[0081] In some embodiments of the present invention, the filter element 1000 also includes: a second filter material 400 and a shell 500, the second filter material 400 is arranged around the periphery of the skeleton 10, and a third cavity 410 is constructed between the second filter material 400 and the skeleton 10; a fourth cavity 420 is constructed between the shell 500 and the second filter material 400.

[0082] Combination Figure 13 For example, the fourth chamber 420 may have a water inlet channel, and the third chamber 410 may have a water outlet channel. The arrow shows the direction of water flow. Specifically, after water enters the fourth chamber 420, it can enter the third chamber 410 after being filtered by the second filter material 400, and then be discharged through the water outlet of the filter element 1000. By radial filtering, the filtering area can be effectively increased, thereby increasing the flow rate and reducing the size and volume of the filter element 1000.

[0083] Among them, the filter element 1000 of the embodiment of the utility model may only have the first filter material 200, or the filter element 1000 may have both the first filter material 200 and the second filter material 400. In the scheme where the filter element 1000 has both the first filter material 200 and the second filter material 400, the filter element 1000 has the function of two-stage filtration at the same time, that is, two-stage filtration is integrated on the same filter element 1000. Exemplarily, the first filter material 200 may be configured as pre-filtering, the second filter material 400 may be configured as post-filtering, or the first filter material 200 may be configured as post-filtering, and the second filter material 400 may be configured as pre-filtering. By integrating the pre-filtering and post-filtering on one filter element 1000, the frequency of users replacing the filter element 1000 is reduced, and the pre-filter element 1000 and the post-filter element 1000 are integrated into one filter element 1000, which can reduce the components of the water purifier, make the structure of the water purifier compact, and improve the space utilization of the water purifier.

[0084] In some embodiments of the utility model, the frame 10 is provided with a flange 40, and a receiving cavity is constructed between the cylinder 300 and the flange 40. Specifically, the flange 40 is connected to the frame 10, and is opposite to the end cover 20 along the axial direction of the pipeline frame 10, the flange 40 is covered on the cylinder 300, and a closed receiving cavity is constructed with the cylinder 300, and the first filter material 200 may be arranged in the receiving cavity, a first cavity 210 is arranged between the first filter material 200 and the frame 10, and a second cavity 320 is arranged between the first filter material 200 and the cylinder 300.

[0085] In addition, in an embodiment where the filter element 1000 has both the first filter medium 200 and the second filter medium 400, the flange 40 may have opposite upper and lower sides. The upper side of the flange 40 may position the second filter medium 400, and the lower side of the flange 40 may position the first filter medium 200. The flange 40 and the cylinder 300 cooperate to isolate an independent filtration chamber, and the flange 40 and the housing 500 cooperate to isolate another independent filtration chamber, enabling the filter element 1000 to have two independent filtration chambers simultaneously, with the function of two-stage filtration and a compact structure.

[0086] Exemplarily, the flange 40 and the cylinder 300 may be connected by welding. The flange 40 and the first filter medium 200 or the second filter medium 400 may be connected and sealed with hot melt adhesive.

[0087] Furthermore, the flange 40 and the skeleton 10 are integrally formed, enhancing the structural strength of the skeleton 10 and facilitating the processing and forming of the skeleton 10.

[0088] In some embodiments of the present utility model, the filter element 1000 further includes a flange 40, the flange 40 connects the skeleton 10, and the filter element 1000 includes the first filter medium 200 provided on one side of the flange 40 and / or the second filter medium 400 provided on the other side of the flange 40. The flange 40 and the skeleton 10 are of a split structure or an integral structure. Combining the foregoing embodiments, the filter element 1000 may include an end cap 20, the end cap 20 may be opposite to the flange 40 along the axis, and the first filter medium 200 may be positioned between the end cap 20 and the flange 40; in addition, the filter element 1000 assembly may further include a cover body, the cover body may be opposite to the flange 40 along the axis, and the second filter medium 400 may be provided between the cover body and the flange 40.

[0089] The water purifier according to the embodiment of the present utility model may include the foregoing skeleton assembly 100 or the foregoing filter element 1000.

[0090] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0091] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0092] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0093] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0094] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0095] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A filter element skeleton assembly (100), characterized in that: include: A skeleton (10), the skeleton (10) having a first end (11), a second end (12) and a first channel (131), the first end (11) being provided with a first interface (111) communicating with the first channel (131); an end cover (20), wherein the end cover (20) comprises a cannula (21), at least a portion of the cannula (21) is inserted into the first interface (111), The end cover (20) is provided with a first positioning portion (23), the frame (10) is provided with a second positioning portion (14), one of the first positioning portion (23) and the second positioning portion (14) is provided as a positioning convex portion (231), and the other is provided as a positioning concave portion (141), and the positioning convex portion (231) is provided in the positioning concave portion (141).

2. The filter element skeleton assembly (100) according to claim 1, characterized in that: The first positioning portion (23) is provided on the outer peripheral surface of the insertion tube (21), and the second positioning portion (14) is provided on the inner peripheral surface of the frame (10).

3. The filter element skeleton assembly (100) according to claim 2, characterized in that: The first positioning portion (23) is a positioning convex portion (231), the second positioning portion (14) is configured as the positioning concave portion (141), and the dimension of the positioning convex portion (231) along the radial direction of the cannula is d3, wherein d3≥1 mm.

4. The filter element skeleton assembly (100) according to claim 1, characterized in that: The end cover (20) also includes an end plate (22), wherein the end plate (22) is arranged on the outer side of the first end portion (11) of the frame (10), the first positioning portion (23) is arranged on the surface of the end plate (22), and the second positioning portion (14) is arranged on the end surface of the first end portion (11) of the frame (10).

5. The filter element skeleton assembly (100) according to claim 1, characterized in that: The skeleton (10) further has a second channel (132). The skeleton (10) includes a first slender portion (151) and a second slender portion (152) arranged side by side. The first channel (131) is arranged in the first slender portion (151), and the second channel (132) is arranged in the second slender portion (152). The first slender portion (151) and the second slender portion (152) are arranged side by side, and the first slender portion (151) and the second slender portion (152) are symmetrically distributed, or the first slender portion (151) and the second slender portion (152) are asymmetrically distributed.

6. The filter element skeleton assembly (100) according to claim 5, characterized in that: The skeleton (10) comprises a first side wall (161), a second side wall (162) and a middle wall (163); the first side wall (161) is connected to the middle wall (163), the first channel (131) is arranged therebetween, the second side wall (162) is connected to the middle wall (163), the second channel (132) is arranged therebetween, and the first side wall (161) and the second side wall (162) are arranged to be arcs with different radii.

7. The filter element skeleton assembly (100) according to claim 5, characterized in that: The skeleton (10) further comprises a first joint (171), wherein the first joint (171) is connected to the first elongated portion (151), and the first interface (111) is provided at the first joint (171); Alternatively, the skeleton (10) further comprises a second joint (172), wherein the second joint (172) is connected to the second elongated portion (152), and the second joint (172) is provided with a second interface (1721) communicating with the second channel (132).

8. The filter element skeleton assembly (100) according to claim 1, characterized in that: The first interface (111) comprises a first section (1111) and a second section (1112) which are connected to each other. One end of the first section (1111) is open and the other end is connected to the second section (1112). In the axial projection, the inner circumference of the first section (1111) is arranged around the outer side of the inner circumference of the second section (1112). The cannula (21) is passed through the first section (1111) and the second section (1112).

9. The filter element skeleton assembly (100) according to claim 1, characterized in that: The outer circumferential surface of the insertion tube (21) is provided with a positioning groove, and the skeleton assembly (100) further comprises a sealing ring (30) arranged in the positioning groove, and the sealing ring (30) abuts against the inner circumferential surface of the skeleton (10).

10. The filter element skeleton assembly (100) according to claim 1, characterized in that: The frame (10) is integrally formed.

11. A filter element (1000), characterized in that: include: The skeleton assembly (100) according to any one of claims 1 to 10; A first filter material (200), the first filter material (200) being arranged around the periphery of the frame (10), and a first cavity (210) being constructed between the first filter material (200) and a support of the frame (10); A cylinder (300), wherein the cylinder (300) has a receiving cavity for receiving the first filter material (200), and a second cavity (320) is formed between the cylinder (300) and the first filter material (200); Wherein, the cannula (21) is connected to the second cavity (320).

12. The filter element (1000) according to claim 11, characterized in that: The central axis of the first filter material (200) and the central axis of the first end portion (11) deviate from each other.

13. The filter element (1000) according to claim 11, characterized in that: Also includes: A second filter material (400), the second filter material (400) being arranged around the periphery of the frame (10), and a third cavity (410) being constructed between the second filter material (400) and the frame (10); The housing (500) is provided with the second filter material (400) disposed inside the housing (500), and a fourth cavity (420) is constructed between the housing (500) and the second filter material (400).

14. The filter element (1000) according to claim 11, characterized in that: The frame (10) is provided with a flange (40), and the accommodating cavity is constructed between the cylinder (300) and the flange (40).

15. A water purifier, characterized in that: A skeleton assembly (100) comprising the filter element according to any one of claims 1 to 10, or a filter element (1000) comprising any one of claims 11 to 14.

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