End cover assembly, filter element and water purification equipment

Abstract

The utility model discloses an end cover assembly, filter element and water purification equipment, and relates to the technical field of water purification equipment manufacturing, the end cover assembly comprises a cover body group, the cover body group is used for covering the opening end of a filter bottle and comprises a plurality of sub-cover bodies, the plurality of sub-cover bodies are all annular structures with a first axis as a central axis, and the first axis is a first axis. The plurality of sub-cover bodies are sequentially sleeved on a plane vertical to the first axis; each sub-cover body is provided with at least one flow channel, and the flow channels penetrate through the sub-cover bodies in the direction parallel to the first axis. According to the end cover assembly, the filter element and the water purification equipment provided by the technical scheme, the production and installation difficulty of the filter element is reduced, and the production efficiency of the filter element is improved.

Description

Technical Field

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

[0002] During the production of filter cartridges, to improve the water-stopping effect of the filter cartridge, a valve body structure is usually installed at the end cap of the filter cartridge to control the direction and flow of water. However, the end cap and filter bottle in related technologies are usually installed using a flat assembly method, which increases the difficulty of installing the water-stop structure. Usually, a water sealing disk is combined with a valve body structure or a specialized water-stop structure is developed to achieve water-stopping. This results in a complex filter cartridge structure, high difficulty in production and assembly, and low production efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide an end cover assembly, a filter element and a water purification device, aiming to reduce the difficulty of production and installation of the filter element and improve the production efficiency of the filter element.

[0004] To achieve the above-mentioned purpose, the utility model provides an end cover assembly, which includes a cover body group, which is used to cover the open end of the filter bottle and includes multiple sub-cover bodies. The multiple sub-cover bodies are all annular structures with a first axis as the central axis, and the multiple sub-cover bodies are sequentially socketed on a plane perpendicular to the first axis; each sub-cover body is provided with at least one flow channel, and the flow channel is set through the sub-cover body in a direction parallel to the first axis.

[0005] In some embodiments, the sub-cover includes a connecting wall, a first extension wall and a second extension wall, and the first extension wall and the second extension wall are respectively arranged on both sides of the connecting wall along a direction parallel to the first axis; the flow channel passes through the first extension wall, the connecting wall and the second extension wall in sequence.

[0006] In some embodiments, the connecting wall extends in a plane parallel to the first axis, and adjacent sub-cover bodies are connected by the connecting wall; between adjacent sub-cover bodies, the connecting wall of one is provided with an avoidance groove, and at least a portion of the connecting wall of the other is provided in the avoidance groove.

[0007] In some embodiments, adjacent sub-covers are fixed by welding.

[0008] In some embodiments, each flow channel is provided with a water stop valve.

[0009] In some embodiments, the end cap assembly also includes a socket having a accommodating space, the cover body group is arranged in the accommodating space and connected to the inner wall of the socket; the connecting walls together divide the accommodating space into a first sub-space and a second sub-space, and the first extension walls are located in the first sub-space and are used to connect to the external component; the second extension walls are located in the second sub-space and are used to connect to the filter bottle of the filter element.

[0010] In some embodiments, the socket includes a plurality of channels isolated from each other, and one channel is connected to at least one flow channel; the channel is used to connect the accommodating space with the outside world.

[0011] In some embodiments, each channel is provided with a water stop valve.

[0012] The present invention also provides a filter element, which includes an end cap assembly as provided in any of the aforementioned embodiments and a filter bottle with an open end, wherein the end cap assembly is connected to the open end of the filter bottle.

[0013] The utility model also provides a water purification device, which includes the filter element provided by any of the above embodiments.

[0014] The technical solution of the present invention is to set up multiple sub-cover bodies, all of which are annular structures with the first axis as the central axis, and the multiple sub-cover bodies are sequentially connected on a plane perpendicular to the first axis. During the production process of the filter element, each sub-cover body can be formed separately, which is conducive to forming a structure for forming a flow channel on each sub-cover body and is conducive to demoulding; at the same time, during the assembly process of the filter element, since adjacent sub-cover bodies are sequentially connected on a plane perpendicular to the first axis, each sub-cover body can be assembled along a direction parallel to the first axis, which can effectively reduce the difficulty of installing the end cover assembly, thereby improving the overall production efficiency of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 1 This is a schematic plan view of the structure of the end cap assembly provided by one embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the planar structure decomposition of the end cover assembly provided by one embodiment of the present utility model;

[0018] Figure 3 This is a schematic cross-sectional view of an end cap assembly provided by one embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the planar structure of a filter element provided in one embodiment of the present utility model;

[0020] Figure 5 This is a schematic cross-sectional view of a filter element provided in one embodiment of the present invention;

[0021] Figure 6 yes Figure 5 An enlarged view of section A of the filter element is shown.

[0022] Description of the accompanying figures: 1000, filter element; 200, filter bottle;

[0023] 100, end cap assembly; 10, cover assembly; 11, sub-cover; 111, connecting wall; 112, first extension wall; 113, second extension wall; 20, socket; 21, channel;

[0024] O, first axis; 101, flow channel; 102, water stop valve; 103, accommodating space; 1031, first subspace; 1032, second subspace; 104, retaining wall.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0029] During the production process of filter elements, in order to improve the water-stopping effect of the filter elements, it is usually necessary to set a valve body structure at the end cover of the filter element to control the flow direction and flow of water.

[0030] However, the end cap and the filter bottle in the related technology are usually installed in a flat assembly manner, which increases the difficulty of installing the water-stop structure. Usually, a water sealing plate is required to be matched with a valve body structure or a special water-stop structure is developed to achieve water-stopping. As a result, the structure of the filter element is complicated, the production and assembly of the filter element are difficult, and the production efficiency is low.

[0031] Based on this, please refer to Figures 1 to 3 The utility model provides an end cover assembly 100, which includes a cover body group 10, which is used to cover the open end of the filter bottle and includes a plurality of sub-cover bodies 11. The plurality of sub-cover bodies 11 are all annular structures with a first axis O as the central axis, and the plurality of sub-cover bodies 11 are sequentially sleeved on a plane perpendicular to the first axis O; each sub-cover body 11 is provided with at least one flow channel 101, and the flow channel 101 is arranged to pass through the sub-cover body 11 in a direction parallel to the first axis O.

[0032] The end cap assembly 100 is a part of the outer shell structure of the filter element, and is used to be arranged at the open end of the filter bottle to cover the open end of the filter bottle to form a relatively sealed and stable working environment.

[0033] The cap assembly 10 is the structure within the end cap assembly 100 that actually covers the open end of the filter bottle. In these embodiments of the present invention, the cap assembly 10 includes a plurality of sub-caps 11, meaning that the cap assembly 10 is composed of a plurality of sub-caps 11. Thus, during the processing and forming stage of the cap assembly 10, each sub-cap 11 can be designed with a special-shaped structure and assembled during the installation stage after each sub-cap 11 is formed, thereby forming flow channels 101 for different water flows, achieving different functions, and adapting to different filter cartridges.

[0034] For example, in some embodiments, the water inlet and the pure water outlet of the filter element need to be connected to the outside world through the cover group 10. At this time, at least two flow channels 101 need to be formed through multiple sub-covers 11, which can be used as the path for the external water source to lead to the interior of the filter element, and the path for the filtered pure water inside to flow out of the filter element; in some embodiments, the water inlet, pure water outlet and concentrated water outlet of the filter element need to be connected to the outside world through the cover group 10. At this time, at least three flow channels 101 need to be formed through multiple sub-covers 11, which can be used as the path for the external water source to lead to the interior of the filter element, the path for the filtered pure water inside to flow out of the filter element, and the path for the filtered concentrated water to flow out of the filter element.

[0035] The multiple sub-cover bodies 11 are all annular structures with the first axis O as the central axis, wherein the first axis O is a virtual axis. The multiple sub-cover bodies 11 are all annular structures with the first axis O as the central axis, which means that each sub-cover body 11 is designed as an annular structure in the design stage and can be individually produced and demolded in the production molding stage to reduce the difficulty of demolding and facilitate the design of the flow channel 101; in the assembly stage, the sub-cover bodies 11 are assembled into an integral structure with a common central axis.

[0036] For example, in these embodiments of the present invention, the cross-sectional shape of the sub-cover body 11 perpendicular to the first axis O may be, but is not limited to, a circular ring or a rectangular ring, etc., which can be selected according to actual conditions.

[0037] The plurality of sub-covers 11 are sequentially nested on a plane perpendicular to the first axis O, which means that the plurality of sub-covers 11 are sequentially nested and connected on a plane perpendicular to the first axis O. For example, in an embodiment in which there are three sub-covers 11, the three sub-covers 11 are respectively a first sub-cover, a second sub-cover, and a third sub-cover. Thus, on a plane perpendicular to the first axis O, the second sub-cover is nested on the outside of the first sub-cover, and the third sub-cover is nested on the outside of the second sub-cover.

[0038] In these embodiments of the present invention, each sub-cover body 11 can be designed to be molded separately and assembled together in the subsequent assembly process, which is conducive to the design of the flow channel 101 in the cover body group 10, and thus provides the prerequisite for the installation of the valve body structure; at the same time, such a production method is conducive to the demolding of the cover body group 10 and improves production efficiency.

[0039] Each sub-cover 11 is provided with at least one flow channel 101 , which means that each sub-cover 11 can be individually formed with a flow channel 101 during the molding process, or can be formed by cooperating with other sub-covers 11 to form a flow channel 101 after molding and assembly.

[0040] The function of the flow channel 101 is to supply water flow, such as guiding the external water source into the filter element, or guiding the filtered pure water inside the filter element to the water outlet, or discharging the concentrated water and waste water generated by filtration inside the filter element.

[0041] The flow channel 101 is arranged to pass through the sub-cover body 11 in a direction parallel to the first axis O, wherein, since each sub-cover body 11 is socketed on a plane perpendicular to the first axis O, the flow channel 101 can be formed by adjacent sub-cover bodies 11. In an embodiment where the flow channel 101 has an irregular structure or a more complex structure, the flow channel 101 can be split into two parts and molded in two different sub-cover bodies 11 respectively, and then formed after each sub-cover body 11 is assembled.

[0042] It should be noted that the flow channel 101 is disposed through the sub-cover body 11 in a direction parallel to the first axis O. This means that the two ends of the flow channel 101 are located at the two ends of the sub-cover body 11 in a direction parallel to the first axis O, and does not mean that the flow channel 101 is a straight cylinder. In this way, when the end cap assembly 100 is installed in the filter bottle, each flow channel 101 can connect the interior space of the filter element with the outside world.

[0043] The technical solution of the present invention is to set up multiple sub-cover bodies 11, all of which are annular structures with the first axis O as the central axis, and multiple sub-cover bodies 11 are sequentially connected on a plane perpendicular to the first axis O. During the production process of the filter element, each sub-cover body 11 can be formed separately, which is conducive to forming a structure for forming the flow channel 101 on each sub-cover body 11 and is conducive to demoulding; at the same time, during the assembly process of the filter element, since adjacent sub-cover bodies 11 are sequentially connected on a plane perpendicular to the first axis O, each sub-cover body 11 can be assembled along a direction parallel to the first axis O, which can effectively reduce the difficulty of installing the end cover assembly 100, thereby improving the overall production efficiency of the filter element.

[0044] In some embodiments, the sub-cover 11 includes a connecting wall 111, a first extension wall 112 and a second extension wall 113, and the first extension wall 112 and the second extension wall 113 are respectively arranged on both sides of the connecting wall 111 along a direction parallel to the first axis O; the flow channel 101 passes through the first extension wall 112, the connecting wall 111 and the second extension wall 113 in sequence.

[0045] Adjacent sub-caps 11 can be connected by connecting walls 111, with at least the outermost sub-caps 11 of the cap assembly 10 being used to connect to the open end of the filter bottle. Thus, the connecting walls 111 of each sub-cap 11 can collectively cover the open end of the filter bottle, allowing the end cap assembly 100 and the filter bottle to form a sealed working space.

[0046] It can be understood that in these embodiments of the present invention, the connecting wall 111 generally extends in a plane perpendicular to the first axis O so as to contact and connect with the connecting wall 111 of the adjacent sub-cover body 11 .

[0047] The first extension wall 112 and the second extension wall 113 are components in each sub-cover body 11 for forming the flow channel 101, wherein the first extension wall 112 and the second extension wall 113 are respectively arranged on both sides of the connecting wall 111 along a direction parallel to the first axis O, which means that after the end cover assembly 100 is connected to the filter bottle, one of the first extension wall 112 and the second extension wall 113 is used to connect the internal structure of the filter element, and the other is used to connect the external structure outside the filter element.

[0048] The flow channel 101 sequentially passes through the first extension wall 112, the connecting wall 111, and the second extension wall 113, which means that the first extension wall 112, the second extension wall 113, and the connecting wall 111 are all components that enclose the flow channel 101. A possible embodiment is described by taking the number of sub-covers 11 as an example, where the three sub-covers 11 are the first sub-cover, the second sub-cover, and the third sub-cover, which are sequentially sleeved from the inside out.

[0049] The first extension wall 112, the second extension wall 113, and the connecting wall 111 of the first sub-cover body enclose an annular structure, the inner wall of which is a flow channel 101. The flow channel 101 can be used to connect the filter element to an external water source. The first extension wall 112 of the first sub-cover body can be connected to the external water source, and the second extension wall 113 of the first sub-cover body can be connected to the interior of the filter element.

[0050] At the same time, the connecting wall 111 of the second sub-cover is connected to the connecting wall 111 of the first sub-cover, and the first extension wall 112 of the second sub-cover is located on the outside of the first extension wall 112 of the first sub-cover and is spaced apart from the first extension wall 112 of the first sub-cover. The second extension wall 113 of the second sub-cover is located on the outside of the second extension wall 113 of the first sub-cover and is spaced apart from the second extension wall 113 of the first sub-cover. In this way, another flow channel 101 is formed between the first sub-cover and the second sub-cover. The flow channel 101 can be used to connect the filter element with external water equipment, so the first extension walls 112 of the first sub-cover and the second sub-cover can be set to be connected to the external water equipment, and the second extension walls 113 of the first sub-cover and the second sub-cover can be used to connect to the pure water outlet inside the filter element.

[0051] Similarly, the connecting wall 111 of the third sub-cover is connected to the connecting wall 111 of the second sub-cover, and the first extension wall 112 of the third sub-cover is located outside the first extension wall 112 of the second sub-cover and is spaced apart from the first extension wall 112 of the second sub-cover. The second extension wall 113 of the third sub-cover is located outside the second extension wall 113 of the second sub-cover and is spaced apart from the second extension wall 113 of the second sub-cover. In this way, another flow channel 101 is formed between the second and third sub-covers. This flow channel 101 can be used to connect the filter element to external wastewater treatment equipment. Therefore, the first extension walls 112 of the second and third sub-covers can be configured to connect to external wastewater treatment equipment, and the second extension walls 113 of the second and third sub-covers can be configured to connect to the concentrated water outlet inside the filter element.

[0052] In some embodiments, the connecting wall 111 extends in a plane parallel to the first axis O, and adjacent sub-cover bodies 11 are connected by the connecting wall 111; between adjacent sub-cover bodies 11, the connecting wall 111 of one is provided with an avoidance groove (unnumbered), and at least a portion of the connecting wall 111 of the other is provided in the avoidance groove.

[0053] In these embodiments of the present invention, the avoidance groove structure is intended to provide pre-positioning for the assembly of adjacent connecting walls 111. That is, during the design phase of each sub-cover 11, an avoidance groove structure can be provided at the connecting walls 111 of adjacent sub-covers 11. During the assembly phase of each sub-cover 11, the avoidance groove can be used to achieve pre-positioning between two adjacent sub-covers 11 before proceeding to the next fixing process, thereby further improving the accuracy of the assembly between adjacent sub-covers 11.

[0054] Exemplarily, the avoidance groove can be provided between adjacent sub-covers 11, penetrating the opposing surfaces of the connecting walls 111 of the two sub-covers 11 and the surface at one end thereof in a direction parallel to the first axis O. In this way, between two adjacent sub-covers 11, one sub-cover 11 can be inserted into the annular structure of the other sub-cover 11 in a direction parallel to the first axis O, and at least a portion of the connecting wall 111 of one sub-cover 11 is located in the aforementioned avoidance groove of the connecting wall 111 of the other sub-cover 11, thereby achieving pre-positioning of the adjacent sub-covers 11 for installation, and connecting the connecting walls 111 of the adjacent sub-covers 11 in the subsequent connection process.

[0055] In these embodiments of the present invention, adjacent sub-covers 11 may be connected by welding, snap connection, or connection via connecting members such as screws and bolts.

[0056] In some embodiments, adjacent sub-covers 11 are welded together. This allows each sub-cover 11 to be individually molded during the molding process, reducing mold design complexity and facilitating demolding. Furthermore, during the assembly of multiple sub-covers 11, welding adjacent sub-covers 11 together increases the structural consistency of the cover assembly 10.

[0057] In some embodiments, each flow channel 101 is provided with a water stop valve 102 to control the flow rate and flow velocity of each flow channel, so that the end cover assembly 100 itself has a water stop function without the need for other components (such as a water sealing disk) to achieve water stop.

[0058] The water stop valve 102 can be provided at one end of each flow channel 101. That is, the water stop valve 102 is used to block one end of the flow channel 101, so that water flowing through the flow channel 101 must pass through the water stop valve 102. This arrangement facilitates the installation of the water stop valve 102 and helps improve the production and processing efficiency of the end cap assembly 100.

[0059] It should be noted that in these embodiments of the present invention, the water stop valve 102 can be set as a one-way valve. In this case, the water stop valve 102 needs to be installed in the direction of the water flow designed; in some embodiments, the water stop valve 102 can also be set as a two-way valve so that water always flows from the end with higher pressure to the end with lower pressure in each flow channel 101.

[0060] In some embodiments, the end cap assembly 100 also includes a socket 20 having a accommodating space 103, the cover body group 10 is arranged in the accommodating space 103 and connected to the inner wall of the socket 20; each connecting wall 111 jointly divides the accommodating space 103 into a first sub-space 1031 and a second sub-space 1032, each first extension wall 112 is located in the first sub-space 1031 and is used to connect to an external component; each second extension wall 113 is located in the second sub-space 1032 and is used to connect to the filter bottle 200 of the filter element.

[0061] The socket 20 is a component in the end cap assembly 100 that is connected to the filter bottle and is used to ultimately connect to external components.

[0062] The socket 20 has a accommodating space 103. A possible practical approach is that the socket 20 can be set as a semi-enclosed structure with one end open, and the cover group 10 is set in the accommodating space 103 and connected to the inner wall of the socket 20. On the one hand, the socket 20 can cooperate with the end of the flow channel 101 for communication with the outside world to form an independent sealed path to extend the flow channel 101 to the port connected to the outside world; on the other hand, the end of the flow channel 101 for connecting to the filter element can be set at the open end of the socket 20, so as to be connected to different parts of the filter element while the socket 20 is connected to the filter bottle to achieve different functions.

[0063] Among them, the socket 20 cooperates with the flow channel 101 to form an independently sealed path. A possible implementation method is that the inner wall of the socket 20 is provided with a plurality of retaining walls 104 extending into the accommodating space 103, and each retaining wall 104 abuts against the first extension wall 112 of each sub-cover body 11, so as to utilize the retaining wall 104 to extend the first extension wall 112, and then extend the flow channel 101 formed between adjacent first extension walls 112 to the port where the socket 20 is connected to the external component.

[0064] Each connecting wall 111 jointly divides the accommodating space 103 into a first sub-space 1031 and a second sub-space 1032. As mentioned above, the connecting wall 111 of each sub-cover body 11 extends in a plane perpendicular to the first axis O, so that after multiple sub-cover bodies 11 are connected, each connecting wall 111 can form a planar structure perpendicular to the first axis O. At the same time, the cover body group 10 is connected to the inner wall of the seat 20 through the connecting wall 111, so that each connecting wall 111 jointly divides the accommodating space 103 into a first sub-space 1031 and a second sub-space 1032.

[0065] In these embodiments of the present invention, the first subspace 1031 is a space in the accommodating space 103 connected to external components, wherein each first extension wall 112 is located in the first subspace 1031 and is used to connect to the external components; the second subspace 1032 is a space in the accommodating space 103 connected to the filter bottle 200 of the filter element, wherein each second extension wall 113 is located in the second subspace 1032 and is used to connect to the filter bottle 200 of the filter element.

[0066] In these embodiments of the present invention, the water stop valve 102 arranged in the flow channel 101 can be arranged in the second sub-space 1032 to fully utilize the second sub-space 1032; at the same time, the aforementioned retaining wall 104 can be extended from the inner surface corresponding to the socket 20 and the first sub-space 1031 to cooperate with the first extension wall 112 of each sub-cover body 11 to guide the flow channel 101 to connect with the external component.

[0067] The connection between the socket 20 and the filter bottle can be a detachable connection such as a snap connection, a threaded connection, a connector connection, etc., so as to facilitate the replacement and maintenance of the internal structure of the filter element.

[0068] It should be noted that in these embodiments of the present invention, the cover group 10 is a component that actually covers the open end of the filter bottle and is a component that actually forms a closed working environment together with the filter bottle. The socket 20 can be used to extend the flow channel 101 and guide it to the external structure. At the same time, the socket 20, as a connection between the filter bottles, can also change the overall force of the filter element, that is, the impact pressure of the water pressure on the filter element cover (i.e., the cover group 10) is transferred to between the socket 20 and the filter bottle through the connection between the cover group 10 and the socket 20, which greatly improves the pressure bearing capacity of the filter element and further improves the reliability of the filter element.

[0069] In some embodiments, the socket 20 includes a plurality of channels 21 isolated from each other, and each channel 21 is connected to at least one flow channel 101 ; the channel 21 is used to connect the accommodating space 103 with the outside.

[0070] In these embodiments of the present invention, channel 21 is the water flow path formed by the aforementioned retaining wall 104. A channel 21 is connected to at least one flow channel 101. This means that in some embodiments, there may be multiple flow channels 101 with the same function. In this case, channel 21 can serve as the central path for these multiple flow channels 101, diverting water from the outer wall and allowing it to flow into the filter element through each flow channel 101; or, alternatively, collecting the purified water or concentrated water filtered from the filter element for discharge.

[0071] In some embodiments, each channel 21 is provided with a water stop valve 102. The water stop valve 102 can be embedded in each channel 21, so that the inner wall of the channel 21 can be used to provide protection for the water stop valve 102, thereby increasing the service life of the water stop valve 102.

[0072] In these embodiments of the present invention, the water stop valve 102 and the channel 21, as well as the water stop valve 102 and the flow channel 101 can be connected by welding to improve the structural consistency between the water stop valve 102 and the channel 21, and between the water stop valve 102 and each flow channel 101.

[0073] Please refer to Figures 1 to 6 The present invention also provides a filter element, which includes an end cap assembly 100 as provided in any of the aforementioned embodiments and a filter bottle 200 with an open end, wherein the end cap assembly 100 is connected to the open end of the filter bottle 200.

[0074] The utility model also provides a water purification device, which includes the filter element provided by any of the above embodiments.

[0075] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An end cap assembly, characterized in that: include: A cover assembly, used to cover the open end of the filter bottle, and comprising a plurality of sub-covers, each of which is an annular structure with the first axis as the central axis, and the plurality of sub-covers are sequentially sleeved on a plane perpendicular to the first axis; Each of the sub-cover bodies is provided with at least one flow channel, and the flow channel is provided through the sub-cover body along a direction parallel to the first axis.

2. The end cap assembly according to claim 1, wherein: The sub-cover includes a connecting wall, a first extending wall and a second extending wall, wherein the first extending wall and the second extending wall are respectively arranged on both sides of the connecting wall along a direction parallel to the first axis; The flow channel sequentially passes through the first extension wall, the connecting wall and the second extension wall.

3. The end cap assembly according to claim 2, wherein: The connecting wall extends in a plane parallel to the first axis, and adjacent sub-covers are connected by the connecting wall; Between adjacent sub-covers, the connecting wall of one is provided with an avoidance groove, and at least a portion of the connecting wall of the other is provided in the avoidance groove.

4. The end cap assembly according to claim 2, wherein: Adjacent sub-covers are fixed by welding.

5. The end cap assembly according to claim 2, wherein: Each flow channel is provided with a water stop valve.

6. The end cap assembly according to any one of claims 2 to 5, wherein: The end cover assembly further includes a socket having an accommodating space, the cover assembly is disposed in the accommodating space and connected to the inner wall of the socket; The connecting walls together divide the accommodating space into a first subspace and a second subspace. The first extension walls are located in the first subspace and are used to connect with external components. The second extension walls are located in the second subspace and are used to connect with the filter bottle of the filter element.

7. The end cap assembly according to claim 6, wherein: The socket includes a plurality of channels isolated from each other, and one of the channels is connected to at least one of the flow channels; The channel is used to connect the accommodating space with the outside world.

8. The end cap assembly according to claim 7, wherein: Each of the channels is provided with a water stop valve.

9. A filter element, characterized in that: The invention comprises the end cap assembly according to any one of claims 1 to 8 and a filter bottle with an open end, wherein the end cap assembly is connected to the open end of the filter bottle.

10. A water purification device, characterized in that: Comprising the filter element as claimed in claim 9.

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