Filter Element and Water Purification Equipment

Abstract

The present invention discloses a filter element and a water purification device. The filter element includes a filter structure and a filter material. The filter structure is formed with a filter channel. The filter material is arranged in the filter channel, and the filter material is arranged to be conductive under the action of an external force so that water from the outside can enter the filter channel by applying pressure to the filter material, or water in the filter channel can flow out to the outside through the filter material by applying pressure to the filter material. When in use, water with pressure can apply pressure to the filter material, so that the filter material opens the filter channel to enter the filter channel for filtering, thereby realizing the normal filtering function of the filter element. The pure water after filtering also has a certain pressure. The water with a certain pressure can apply a certain pressure to the filter material to open the filter channel and thus discharge the filtered pure water to the outside. When the filter element is replaced, the filter element stops filtering water. At this time, the water in the filter channel has no pressure or is under low pressure. At this time, the filter material cannot be opened, and the water in the filter channel cannot be discharged.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifiers, and in particular to a filter element and water purification equipment. Background Art

[0002] With the continuous improvement of living standards, water purifiers have gradually become a must-have household appliance. Generally, water purifiers are equipped with filter cartridges. Due to the limited life of the filter material, the filter cartridge must be removed and replaced with a new one after a period of use.

[0003] However, when replacing the filter element of a traditional water purifier, water may remain inside the old filter element, which may inevitably spill during the operation and wet the user, the ground or the equipment, posing a certain risk and affecting user use. Summary of the Invention

[0004] Based on this, in order to solve the problem that when replacing the filter element of a traditional water purifier, there is water remaining inside the old filter element, which is inevitably spilled during the operation, wetting the user, the ground or the equipment, posing a certain risk and affecting the user's use, a filter element and a water purification device are proposed. The filter element and the water purification device can prevent the residual water inside the filter element from spilling out when in use.

[0005] The specific technical solutions are as follows:

[0006] On the one hand, the present application relates to a filter element, comprising: a filter structure and a filter material, wherein the filter structure forms a filter channel, the filter material is arranged in the filter channel, and the filter material is arranged to be conductive under the action of external force so that water from the outside can enter the filter channel through the filter material, or water in the filter channel can flow out to the outside through the filter material.

[0007] When the above-mentioned filter element is in use, when it is necessary to filter water, the external water is under pressure when it is supplied. At this time, the pressurized water can exert pressure on the filter material, causing the filter material to open the filter channel to enter the filter channel for filtration, thereby realizing the normal filtering function of the filter element. After the filtration is completed, since the filtered pure water also has a certain pressure during the filtration process, the water with a certain pressure can exert a certain pressure on the filter material to open the filter channel and thus discharge the filtered pure water to the outside world; when replacing the filter element, the filter element stops filtering water. At this time, the water in the filter channel has no pressure or is under low pressure. At this time, the filter material cannot be opened, and the water in the filter channel cannot be discharged, thereby preventing the residual water inside from spilling out when replacing the filter element.

[0008] The technical solution is further described below:

[0009] In one embodiment, the filter material is one or more of polyethylene filter material, synthetic fiber filter material, and polypropylene filter material.

[0010] In one embodiment, the filter channel includes a first water flow channel and a second water flow channel. The filter structure further includes a mounting housing and a filter element. The mounting housing is provided with a receiving cavity. The filter element is disposed in the receiving cavity and forms the first water flow channel with the inner wall of the receiving cavity. The filter element is provided with the second water flow channel. The filter media includes a first filter media valve body and a second filter media valve body. The first filter media valve body is disposed in the first water flow channel, and the second filter media valve body is disposed in the second water flow channel.

[0011] The on-off of the first water flow channel is controlled by the first filter media valve body, and the on-off of the second water flow channel is controlled by the second filter media valve body. When the first water flow channel is the raw water channel and the second water flow channel is the pure water channel, the water to be filtered applies pressure to the first filter media valve body to enter the first water flow channel through the filter media valve body, and after being filtered by the filter element, it enters the second water flow channel. The water in the second water flow channel applies pressure to the second filter media valve body so that the water in the second water flow channel can be discharged through the second valve. When replacing the filter element, since the water pressure in the second water flow channel is small, it cannot pass through the second filter media valve body and thus will not spill out. At the same time, the internal water pressure in the first water flow channel is small, it cannot pass through the first filter media valve body and thus will not spill out. Or, in another embodiment, when the first water flow channel can be the pure water channel and the second water flow channel can be the raw water channel, the principle is similar to that in the previous embodiment and will not be elaborated here one by one.

[0012] In one embodiment, the filter element includes a mounting seat and a filter element body. The mounting seat is fixedly provided on the filter element body. A first gap is formed between the mounting seat and the inner wall of the receiving cavity. A second gap is formed between the filter element body and the inner wall of the receiving cavity. The first gap and the second gap communicate to form the first water flow channel. A third water flow channel is formed inside the filter element body, and a fourth water flow channel is formed inside the mounting seat. The third water flow channel and the fourth water flow channel communicate to form the second water flow channel.

[0013] In one embodiment, the second filter media valve body is disposed in the fourth water flow channel, and the first filter media valve body is disposed in the first gap.

[0014] In one embodiment, the mounting seat includes a connecting seat body and a flow guiding assembly. The connecting seat body is fixedly provided on the filter element body. The flow guiding assembly is fixedly provided on the connecting seat body. The gap between the flow guiding assembly and the connecting seat body and the inner wall of the receiving cavity forms the first gap through clearance fit. The fourth water flow channel is formed inside the flow guiding assembly. The connecting seat body is provided with a through hole for communicating the third water flow channel and the fourth water flow channel.

[0015] In one embodiment, the diversion assembly includes a first diversion member and a second diversion member. The first diversion member is fixedly arranged on the connection seat body. A clearance fit between the first diversion member and the connection seat body and the inner wall of the accommodation cavity forms the first gap. The first diversion member is provided with an installation channel. The second diversion member is inserted into the installation channel and connected to the connection seat body. The second diversion member and the inner wall of the installation channel form the fourth water flow channel.

[0016] In one embodiment, the second diversion member is provided with an installation protrusion, and the second filter element valve body is fixedly arranged on the installation protrusion.

[0017] In one embodiment, the connection seat body is provided with a connection portion. The first diversion member is sealingly connected to the connection portion. The connection portion is provided with an installation groove. The second diversion member is fixedly arranged in the installation groove and cooperates with the inner wall of the installation groove to form a fifth water flow channel communicating with the fourth water flow channel. The inner wall of the fifth water flow channel is provided with the through hole.

[0018] On the other hand, the present application further relates to a water purification device, which is characterized by including the filter element in any of the above embodiments.

[0019] The water purification device includes the filter element in any of the above embodiments. Therefore, when the water purification device is in use and water needs to be filtered, the water from the outside has pressure when it is supplied. At this time, the water with pressure can apply pressure to the filter medium to open the filtration channel so as to enter the filtration channel for filtration. In this way, the normal filtration function of the filter element is realized. After filtration, since during the filtration process, the filtered pure water also has a certain pressure, the water with a certain pressure can apply a certain pressure to the filter medium to open the filtration channel, and then the filtered pure water is discharged to the outside. When replacing the filter element, the filter element stops filtering water. At this time, the water in the filtration channel has no pressure or has a small pressure. At this time, the filter medium cannot be opened, and thus the water in the filtration channel cannot be discharged, so as to avoid the water remaining inside from spilling out when replacing the filter element. Description of the Drawings

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] In addition, the accompanying drawings are not drawn to a scale of 1:1, and the relative sizes of the respective components are only drawn illustratively in the accompanying drawings and not necessarily to the actual scale.

[0023] Figure 1 is a schematic structural view of a filter element in an embodiment;

[0024] Figure 2 is Figure 1 a partially enlarged schematic view of A in

[0025] Figure 3 a partially enlarged schematic view of a filter element in another embodiment.

[0026] Explanation of reference numerals:

[0027] 10. Filter element; 100. Filter structure; 110. Installation housing; 112. Accommodation cavity; 114. First water flow channel; 116. Second gap; 118. First gap; 120. Filter element; 122. Second water flow channel; 124. Filter element body; 1242. Third water flow channel; 126. Mounting seat; 1262. Fourth water flow channel; 1264. Connecting seat body; 12642. Through hole; 12644. Connecting portion; 12646. Fifth water flow channel; 1266. Flow guiding assembly; 12662. First flow guiding member; 12664. Second flow guiding member; 12666. Installation channel; 12668. Installation protrusion; 200. Filter media; 210. First filter media valve body; 220. Second filter media valve body. Detailed embodiments

[0028] In order to make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationships 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. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 thus should not be construed as limiting the present invention.

[0030] 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 invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] Please refer to Figure 1 and Figure 2 , an embodiment provides a filter element 10, and when the filter element 10 and the water purification device are in use, it can prevent the water remaining inside the filter element 10 from spilling out.

[0032] Please refer to Figure 1 and Figure 2 , specifically, the filter element 10 includes a filtering structure 100, and the filtering structure 100 forms a filtering channel. Wherein, the water to be filtered from the outside can enter the filtering channel for filtering, and after filtering, it is discharged through the filtering channel.

[0033] Please refer to Figure 2 , further, the filter element 10 further includes a filter medium 200, the filter medium 200 is disposed inside the filtering channel, and the filter medium 200 is configured to be conductive under the action of an external force so that the water from the outside can enter the filtering channel by applying pressure to the filter medium 200 and the water inside the filtering channel can flow out to the outside by applying pressure to the filter medium 200. The filter medium 200 is divided into a water inlet side and a water outlet side. The water from the outside can enter the filtering channel by applying pressure to the water inlet side to pass through the filter medium 200. After filtering, the water with pressure can apply pressure to the water outlet side to flow out to the outside through the filter medium 200.

[0034] Please refer to Figure 1 and Figure 2 , when water needs to be filtered, the water from the outside has pressure when it is supplied. At this time, the water with pressure can apply pressure to the filter medium 200 to open the filtering channel to enter the filtering channel for filtering. In this way, the normal filtering function of the filter element 10 is realized. After filtering, since the filtered pure water also has a certain pressure during the filtering process, the water with a certain pressure can apply a certain pressure to the filter medium 200 to open the filtering channel and then discharge the filtered pure water to the outside; when replacing the filter element 10, the filter element 10 stops filtering water. At this time, the water inside the filtering channel has no pressure or has a small pressure, and at this time, the filter medium 200 cannot be opened, and thus the water inside the filtering channel cannot be discharged, and thus it can be avoided that the water remaining inside spills out when replacing the filter element 10.

[0035] Specifically, the filter medium 200 can be a filter medium 200 such as PP (polypropylene) cotton filter medium 200, synthetic fiber filter medium 200, or polyethylene filter medium 200 that requires a certain pressure to pass through.

[0036] Please refer to Figure 2 , the filtration channel includes a first water flow channel 114 and a second water flow channel 122. The filtration structure 100 further includes a mounting housing 110 and a filter element 120. The mounting housing 110 is provided with a receiving cavity 112. The filter element 120 is disposed in the receiving cavity 112 and forms a first water flow channel 114 with the inner wall of the receiving cavity 112. The filter element 120 is provided with a second water flow channel 122. Among them, the first water flow channel 114 can be a raw water channel, and the second water flow channel 122 can be a pure water channel. At this time, the water to be filtered enters the first water flow channel 114 and enters the second water flow channel 122 through the filtration of the filter element 120; or, the first water flow channel 114 can be a pure water channel, and the second water flow channel 122 can be a raw water channel. At this time, the water to be filtered enters the second water flow channel 122 and enters the first water flow channel 114 through the filtration of the filter element 120.

[0037] Please refer to Figure 2 , the filter medium 200 includes a first filter medium 200 valve body and a second filter medium 200 valve body. The first filter medium 200 valve body is disposed in the first water flow channel 114, and the second filter medium 200 valve body is disposed in the second water flow channel 122. In this way, the on-off of the first water flow channel 114 is controlled by the first filter medium 200 valve body, and the on-off of the second water flow channel 122 is controlled by the second filter medium 200 valve body. When the first water flow channel 114 is a raw water channel and the second water flow channel 122 is a pure water channel, the water to be filtered exerts pressure on the first filter medium 200 valve body to pass through the filter medium 200 valve body and enter the first water flow channel 114, and after passing through the filtration of the filter element 120, it enters the second water flow channel 122. The water in the second water flow channel 122 exerts pressure on the second filter medium 200 valve body so that the water in the second water flow channel 122 can be discharged through the second filter medium 200 valve body. When replacing the filter element 10, since the water pressure in the second water flow channel 122 is small and cannot pass through the second filter medium 200 valve body, it will not spill out. At the same time, the internal water pressure in the first water flow channel 114 is small and cannot pass through the first filter medium 200 valve body, so it will not spill out; or, in another embodiment, when the first water flow channel 114 can be a pure water channel and the second water flow channel 122 can be a raw water channel, the principle is similar to that in the previous embodiment and will not be elaborated here one by one.

[0038] Specifically, the first filter media 200 valve body can be the first filter media 200, and the second filter media 200 valve body can be the second filter media 200. Among them, the first filter media 200 and the second filter media 200 can be filter media 200 such as PP (polypropylene) cotton filter media 200, synthetic fiber filter media 200, or polyethylene filter media 200 that require a certain pressure to pass through.

[0039] Please refer to Figure 1 and Figure 2 , the filter element 120 includes a mounting seat 126 and a filter element body 124. The mounting seat 126 is fixedly arranged on the filter element body 124. A first gap 118 is formed between the mounting seat 126 and the inner wall of the accommodating cavity 112, and a second gap 116 is formed between the filter element body 124 and the inner wall of the accommodating cavity 112. The first gap 118 and the second gap 116 communicate to form a first water flow channel 114. A third water flow channel 1242 is formed inside the filter element body 124, and a fourth water flow channel 1262 is formed inside the mounting seat 126. The third water flow channel 1242 and the fourth water flow channel 1262 communicate to form a second water flow channel 122.

[0040] Further, please refer to Figure 2 , the second filter media 200 valve body is arranged in the fourth water flow channel 1262, and the first filter media 200 valve body is arranged in the first gap 118. In other embodiments, the second filter media 200 valve body can also be arranged in the third water flow channel 1242, and the first filter media 200 valve body can also be arranged in the second gap 116. The specific arrangement position is set according to needs.

[0041] Please refer to Figure 2 , the mounting seat 126 includes a connecting seat body 1264 and a flow guiding component 1266. The connecting seat body 1264 is fixedly arranged on the filter element body 124, and the flow guiding component 1266 is fixedly arranged on the connecting seat body 1264. The gap between the flow guiding component 1266 and the connecting seat body 1264 and the inner wall of the accommodating cavity 112 forms the first gap 118 by clearance fit. A fourth water flow channel 1262 is formed inside the flow guiding component 1266, and the connecting seat body 1264 is provided with a through hole 12642 for communicating the third water flow channel 1242 and the fourth water flow channel 1262. In this way, the water in the fourth water flow channel 1262 can enter the third water flow channel 1242 through the through hole 12642, or the water in the third water flow channel 1242 can enter the fourth water flow channel 1262 through the through hole 12642.

[0042] Further, please refer to Figure 2, the diversion component 1266 includes a first diversion member 12662, and the first diversion member 12662 is fixedly provided on the connection seat body 1264. The gap between the first diversion member 12662 and the connection seat body 1264 and the inner wall of the accommodation cavity 112 forms a first gap 118. In this way, the water from the outside can flow in the first gap 118 under the guidance of the first diversion member 12662.

[0043] Please refer to Figure 2 , specifically, the diversion component 1266 further includes a second diversion member 12664. The first diversion member 12662 is provided with an installation channel 12666. The second diversion member 12664 is inserted into the installation channel 12666 and connected to the connection seat body 1264. The second diversion member 12664 and the inner wall of the installation channel 12666 form a fourth water flow channel 1262. In this way, the water discharged along the third water flow channel 1242 can flow in the fourth water flow channel 1262 under the guidance of the second diversion member 12664. The second diversion member 12664 can be an integral structure or, in a back embodiment, please refer to Figure 3 , the second diversion member 12664 can be a split structure.

[0044] Please refer to Figure 2 , the second diversion member 12664 is provided with an installation protrusion 12668, and the second filter element 200 valve body is fixedly provided on the installation protrusion 12668. Specifically, the structure of the installation protrusion 12668 can match the shape of the fourth water flow channel 1262, so that it can fit with the inner wall of the fourth water flow channel 1262 to improve the sealing performance.

[0045] Furthermore, please refer to Figure 2 , the connection seat body 1264 is provided with a connection portion 12644. The first diversion member 12662 is hermetically connected to the connection portion 12644. The connection portion 12644 is provided with an installation groove. The second diversion member is fixedly provided in the installation groove and forms a fifth water flow channel 12646 communicating with the fourth water flow channel 1262 with the inner wall of the installation groove. The inner wall of the fifth water flow channel 12646 is provided with a through hole 12642.

[0046] Specifically, the hermetic connection between the first diversion member 12662 and the connection portion 12644 can be that there is a sealing portion between the first diversion member 12662 and the connection portion 12644, and the first diversion member 12662 and the connection portion 12644 are connected through the sealing portion.

[0047] Furthermore, the connection portion 12644 extends into the installation channel 12666. A sealing groove is provided on the outer wall of the first diversion member 12662, and a sealing ring is provided in the sealing groove. The sealing groove and the sealing ring cooperate to form a sealing portion; or a sealing groove is provided on the outer wall of the connection portion 12644, and a second sealing ring is provided in the sealing groove. The sealing groove and the sealing ring cooperate to form a sealing portion.

[0048] In addition, an embodiment also relates to a water purification device, which is characterized by including the filter element 10 in any of the above embodiments.

[0049] The water purification device includes the filter element 10 in any of the above embodiments. Therefore, when the water purification device is in use and water needs to be filtered, the water from the outside has pressure when it is supplied. At this time, the pressurized water can exert pressure on the filter medium 200 to open the filtration channel so that the water can enter the filtration channel for filtration. In this way, the normal filtration function of the filter element 10 is achieved. After filtration, since the filtered pure water also has a certain pressure during the filtration process, the water with a certain pressure can exert a certain pressure on the filter medium 200 to open the filtration channel and then discharge the filtered pure water to the outside; when replacing the filter element 10, the filter element 10 stops filtering water. At this time, the water in the filtration channel has no pressure or has a small pressure, and at this time, the filter medium 200 cannot be opened, so the water in the filtration channel cannot be discharged, and thus it is possible to avoid the water remaining inside from spilling out when replacing the filter element 10.

[0050] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can 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" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0052] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0053] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0054] The above embodiments only express several implementation manners of the present invention, and the description is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. A filter element, characterized in that, include: A filter structure, wherein the filter structure is formed with a filter channel; and A filter material is disposed in the filter channel and is configured to be conductive under the action of an external force so that water from the outside can enter the filter channel through the filter material, or water in the filter channel can flow out to the outside through the filter material; The filter material is one or more of polyethylene filter material, synthetic fiber filter material, and polypropylene filter material; The filter channel includes a first water flow channel and a second water flow channel, and the filter structure further includes a mounting housing and a filter element. The mounting housing is provided with a receiving cavity. The filter element is disposed in the receiving cavity and forms the first water flow channel with the inner wall of the receiving cavity. The filter element is provided with the second water flow channel. The filter material includes a first filter material valve body and a second filter material valve body. The first filter material valve body is disposed in the first water flow channel, and the second filter material valve body is disposed in the second water flow channel. The filter element includes a mounting seat and a filter element body, the mounting seat being fixed to the filter element body, a first gap being formed between the mounting seat and the inner wall of the accommodating cavity, a second gap being formed between the filter element body and the inner wall of the accommodating cavity, the first gap and the second gap being connected to form a first water flow channel, a third water flow channel being formed in the filter element body, a fourth water flow channel being formed in the mounting seat, the third water flow channel and the fourth water flow channel being connected to form the second water flow channel; The second filter material valve body is arranged in the fourth water flow channel, and the first filter material valve body is arranged in the first gap; The filter material is used to be unable to open when the water in the filter channel has no pressure or has a low pressure, thereby preventing the water in the filter channel from being discharged.

2. The filter element according to claim 1, characterized in that, The mounting seat includes a connecting seat body and a guide assembly, the connecting seat body is fixed to the filter element body, the guide assembly is fixed to the connecting seat body, the gap between the guide assembly and the connecting seat body and the inner wall of the accommodating cavity cooperates to form the first gap, the fourth water flow channel is formed in the guide assembly, and the connecting seat body is provided with a through hole for connecting the third water flow channel and the fourth water flow channel.

3. The filter element according to claim 2, characterized in that The flow guide assembly includes a first flow guide member and a second flow guide member. The first flow guide member is fixed to the connecting seat body. The first flow guide member and the gap between the connecting seat body and the inner wall of the accommodating cavity cooperate to form the first gap. The first flow guide member is provided with an installation channel. The second flow guide member is inserted into the installation channel and connected to the connecting seat body. The second flow guide member and the inner wall of the installation channel form the fourth water flow channel.

4. The filter element according to claim 3, characterized in that, The second flow guide member is provided with a mounting protrusion, and the second filter material valve body is fixedly arranged on the mounting protrusion.

5. The filter element according to claim 3, characterized in that The connecting seat body is provided with a connecting portion, the first flow guide is sealedly connected to the connecting portion, the connecting portion is provided with a mounting groove, the second flow guide is fixed in the mounting groove, and cooperates with the inner wall of the mounting groove to form a fifth water flow channel connected to the fourth water flow channel, and the inner wall of the fifth water flow channel is provided with the through hole.

6. A water purification device, characterized in that, The filter element comprises the filter element according to any one of claims 1 to 5.

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