Filter element base and water retaining piece

Abstract

The utility model discloses a filter element base and a water retaining piece. The water retaining piece comprises a retaining part, at least one valve part and a valve clack, the retaining part is provided with a first water inlet channel and a first water outlet channel, the valve part is connected with the retaining part, the valve part is provided with a non-return cavity, the non-return cavity is communicated with the first water inlet channel or the first water outlet channel, the side wall of the non-return cavity is provided with a runner hole, the runner hole is communicated with the outside, and the valve clack is arranged in the non-return cavity. One side of the valve clack abuts against a port of the first water inlet channel or the first water outlet channel, and the other side of the valve clack is connected with the inner wall of the non-return cavity. The valve clack is made of elastic materials, and when the water pressure of the side, opposite to the water flow direction, of the valve clack reaches the preset degree, the valve clack can deform to be separated from the port of the first water inlet channel or the port of the first water outlet channel. The valve part is arranged on the water retaining piece of the filter element base, the valve clack is arranged in the valve part and made of the elastic material, the valve clack controls opening and closing of a flow channel in the water retaining piece through elastic deformation of the valve clack, the structure is simple, and the material cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, in particular to a filter element base and a water retaining member. Background Art

[0002] In existing water purifiers, the filter element and the filter element base are usually designed separately. An inlet and an outlet corresponding to the filter element are provided on the filter element base. In order to ensure the unidirectional flow of water, a check valve needs to be provided in the water flow channel of the filter element base. Especially in the outlet channel, it is common to set a check valve. However, the current check valve includes a valve plate and a spring. The valve plate is reset by the spring to prevent the reverse flow of water. In view of the compact internal structure of the filter element base, it is difficult to install the check valve, and moreover, the check valve is prone to jamming and failure. In addition, due to the complex structure of the check valve, the cost of the water purifier is increased. Summary of the Utility Model

[0003] In order to solve the problem that a check valve needs to be provided inside the filter element base in the prior art, resulting in a complex structure of the filter element base, the utility model provides a filter element base and a water retaining member.

[0004] The water retaining member provided in this application includes a blocking portion, at least one valve portion and a valve flap. The blocking portion is provided with a first water inlet channel and a first water outlet channel. The valve portion is connected to the blocking portion. The valve portion is provided with a check cavity. The check cavity is communicated with the first water inlet channel or the first water outlet channel. A flow channel hole is provided on the side wall of the check cavity. The flow channel hole is communicated with the outside. The valve flap is arranged inside the check cavity. One side of the valve flap abuts against the port of the first water inlet channel or the first water outlet channel, and the other side is connected to the inner wall of the check cavity;

[0005] Wherein, the valve flap is made of an elastic material. When the water pressure on the side of the valve flap opposite to the water flow direction reaches a predetermined level, the valve flap can be deformed to disengage from the port of the first water inlet channel or the first water outlet channel.

[0006] In some embodiments, the first water outlet channel includes a pure water channel and a waste water channel. The valve portion is arranged at the pure water channel of the blocking portion. The check cavity is communicated with the pure water channel. The valve flap abuts against the port of the pure water channel.

[0007] In some embodiments, an end face is provided at the abutting position of the first water inlet channel or the first water outlet channel and the valve flap;

[0008] The valve flap includes a closing portion and a deformation portion. The deformation portions are respectively connected to the closing portion and the inner wall of the check cavity;

[0009] Wherein, the end face is tightly abutted and attached to the side face of the closing portion.

[0010] In some embodiments, the water retaining member further comprises a bearing ring, the bearing ring is arranged inside the check cavity, the bearing ring is arranged on a side of the flow channel hole close to the end surface, and the outer side of the bearing ring is connected to the side wall of the check cavity, and a through hole is opened in the middle of the bearing ring, and the through hole is used for passing water;

[0011] The deformation part is provided with a plurality of evenly distributed notches, and the notches are used for passing water flow;

[0012] Wherein, a side of the deformation portion away from the closing portion abuts against the carrying ring.

[0013] In some embodiments, a limiting protrusion is provided on a side of the bearing ring close to the deformation portion, and a side of the limiting protrusion close to the inner wall of the anti-return cavity is in contact with a side of an edge of the deformation portion away from the inner wall of the anti-return cavity.

[0014] In some embodiments, a recess is formed on a side of the closing portion away from the end surface, and the recess is opposite to the through hole.

[0015] The filter element base provided in the present application comprises a seat body and the above-mentioned water retaining member, wherein the seat body is provided with an assembly port, a second water inlet channel and a second water outlet channel, the second water inlet channel and the second water outlet channel are both connected to the assembly port, and the water retaining member is assembled at the assembly port;

[0016] Wherein, the first water inlet channel can be selectively connected with the second water inlet channel, and the first water outlet channel can be selectively connected with the second water outlet channel. When the water blocking member is in a connected state, the first water inlet channel and the first water outlet channel are respectively connected with the second water inlet channel and the second water outlet channel. When the water blocking member is in a disconnected state, the first water inlet channel and the first water outlet channel are respectively disconnected from the second water inlet channel and the second water outlet channel.

[0017] In some embodiments, an insertion cavity is provided on the seat body, the insertion cavity is communicated with the assembly port, and the second water outlet channel is communicated with the insertion cavity;

[0018] The valve portion protrudes from the stopper and is connected to the first water outlet channel, the valve flap abuts against the port of the first water outlet channel, the valve portion is inserted into the insertion cavity, and the water stopper can be rotated relative to the seat body through the insertion cavity to put the water stopper in a connected state or a disconnected state;

[0019] Wherein, when the water retaining member is in a connected state, the flow channel hole is aligned and connected with the second water outlet channel; when the water retaining member is in a disconnected state, the flow channel hole is staggered and separated from the second water outlet channel.

[0020] In some embodiments, a sealing ring is directly provided between the side wall of the valve portion and the side wall of the insertion cavity, and the sealing ring is disposed on one side of the flow passage hole close to the blocking portion.

[0021] In some embodiments, one of the seat body and the water blocking member is provided with a protrusion, and the other of the seat body and the water blocking member is provided with a limiting groove, and the protrusion is disposed inside the limiting groove and can slide along the limiting groove;

[0022] Wherein, when the protrusion slides to one end of the limiting groove, the water blocking member is in the communicating state, and when the protrusion slides to the other end of the limiting groove, the water blocking member is in the disconnected state.

[0023] Compared with the prior art, the filter element base and the water blocking member in the embodiments of the present invention have the beneficial effects that: a valve portion is provided on the water blocking member of the filter element base, a valve flap is provided inside the valve portion, the valve flap is made of an elastic material, and the valve flap controls the opening and closing of the internal flow passage of the water blocking member through its own elastic deformation, without using a spring, the structure is simple, and the material cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the filter element base provided in an embodiment of the present application;

[0025] Figure 2 is a schematic diagram of the disassembled structure of the filter element base provided in an embodiment of the present application;

[0026] Figure 3 is a schematic diagram of the disassembled and dissected structure of the filter element base provided in an embodiment of the present application;

[0027] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at A in

[0028] Figure 5 is a schematic diagram of the sectional plane structure of the filter element base provided in an embodiment of the present application;

[0029] Figure 6 is Figure 5 an enlarged schematic diagram of the structure at B in

[0030] Figure 7 is Figure 6 an enlarged schematic diagram of the structure at C in

[0031] Figure 8 is another sectional structure diagram of the filter element base provided in an embodiment of the present application.

[0032] 1000. Water retaining member; 100. Blocking portion; 11. First water inlet channel; 12. First water outlet channel; 200. Valve portion; 21. Check cavity; 211. Flow channel hole; 300. Valve flap; 31. Sealing portion; 32. Deformation portion; 33. Notch; 34. Concave portion; 400. Bearing ring; 41. Limit protrusion; 42. Through hole; 01. Protrusion; 500. Sealing ring; 2000. Seat body; 201. Assembly port; 202. Second water inlet channel; 203. Second water outlet channel; 204. Insertion cavity; 02. Restriction groove; 03. End face. Detailed implementation mode

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present utility model.

[0034] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed when in use. It 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 of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0036] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0038] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0039] As Figure 2 、 Figure 3As shown, a water retaining member 1000 provided in the present application includes a retaining portion 100, at least one valve portion 200 and a valve flap 300, the valve portion 200 is connected to the retaining portion 100 or molded as a whole, a check cavity 21 is opened inside the valve portion 200, a flow channel hole 211 for communicating with the outside is opened on the inner wall of the check cavity 21, the valve flap 300 is arranged inside the check cavity 21, the retaining portion 100 is opened with a first water inlet channel 11 for water inlet and a first water outlet channel 12 for water outlet, the check cavity 21 is communicated with the first water inlet channel 11 or the first water outlet channel 12, one side of the valve flap 300 is abutted against the port of the first water inlet channel 11 or the first water outlet channel 12, and the other side is connected to the inner wall of the check cavity 21, and the valve flap 300 is an elastic material, which can be made of rubber or silicone.

[0040] In actual application, when the water pressure on the side of the valve flap 300 opposite to the water flow (i.e., the side of the valve flap 300 away from the check chamber 21) reaches a predetermined level, the valve flap 300 can produce elastic deformation so that the valve flap 300 is separated from the first water inlet channel 11 or the first water outlet channel 12. In this way, the water inside the first water inlet channel 11 or the first water outlet channel 12 can enter the check chamber 21 and then flow out from the flow channel hole 211. When the water pressure decreases or the water has a tendency to flow back, the valve flap 300 will restore and close the port of the first water inlet channel 11 or the first water outlet channel 12. Since the valve flap 300 is arranged inside the check chamber 21, when the water flows back, the water pressure inside the check chamber 21 is greater than the water pressure inside the first water inlet channel 11 or the first water outlet channel 12. At this time, the valve flap 300 will be more tightly pressed against the port of the first water inlet channel 11 or the first water outlet channel 12, thereby effectively blocking the backflow of water. Compared with the one-way valve, the backflow prevention method does not need to use a spring for resetting, and has a simple structure and low cost.

[0041] In some embodiments, the first water outlet channel 12 includes a pure water channel and a waste water channel, the pure water channel is used to flow out the filtered and purified water, and the waste water channel is used to flow out the concentrated water produced by the filtration; the valve portion 200 is arranged at the pure water channel of the blocking portion 100, and is used to prevent the water inside the pure water channel from flowing back, the check cavity 21 is connected to the pure water channel, one side of the valve flap 300 abuts against the port of the pure water channel, and the other side is connected to the inner wall of the check cavity 21. Since the water inside the pure water channel needs to be directly drinkable, if backflow occurs, the water inside the pure water channel may be contaminated, and the valve portion 200 and the valve flap 300 are arranged at the pure water channel to ensure the hygiene of the pure water. The structure of the valve portion 200 and the valve flap 300 is simple, and compared with installing a one-way valve, it reduces the complexity of the filter element base structure and also saves costs.

[0042] In some embodiments, Figure 5 , Figure 6 , Figure 7As shown, an end face 03 is provided at the abutting position between the above-mentioned first water inlet passage 11 or first water outlet passage 12 and the valve flap 300, and the end face 03 is in close contact with the valve flap 300.

[0043] The above-mentioned valve flap 300 includes a closing portion 31 and a deformation portion 32. The closing portion 31 can be in close contact with the end face 03 to close the port of the first water inlet passage 11 or the first water outlet passage 12. The deformation portion 32 is connected to the closing portion 31. Usually, the deformation portion 32 and the closing portion 31 are integrally molded. Since the valve flap 300 is made of an elastic material, the end face 03 can increase the abutting area between the port of the first water inlet passage 11 or the first water outlet passage 12 and the valve flap 300, improving the closing effect of the valve flap 300 on the port of the first water inlet passage 11 or the first water outlet passage 12, and further enabling the valve flap 300 to more effectively prevent the phenomenon of water flow backflow.

[0044] In some embodiments, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the above-mentioned water blocking member 1000 further includes a bearing ring 400. The bearing ring 400 is arranged on the side of the flow channel hole 211 close to the end face 03 and is located inside the check cavity 21. The outer side of the bearing ring 400 is connected to the side wall of the check cavity 21, and a through hole 42 for water flow is provided in the middle of the bearing ring 400.

[0045] A plurality of uniformly distributed notches 33 are provided in the deformation portion 32 of the above-mentioned valve flap 300. The notches 33 are used for water flow and make the deformation portion 32 more likely to deform under the action of water pressure. One end of the deformation portion 32 away from the closing portion 31 abuts against the bearing ring 400.

[0046] In practical applications, water flows from the port of the first water inlet passage 11 or the first water outlet passage 12 into the check cavity 21 and then passes through the notches 33, the through hole 42 and the flow channel hole 211 in sequence and flows to the outside of the water blocking member 1000. If backflow occurs, the backflowing water will be concentrated by the through hole 42, resulting in a greater water pressure on the side of the valve flap 300 away from the end face 03, and further making the valve flap 300 fit more tightly with the end face 03. To sum up, through the above design, the anti-backflow effect of the valve flap 300 can be made more sensitive.

[0047] In some embodiments, such as Figure 4 , Figure 6 , Figure 7As shown, a limiting protrusion 41 is provided on one side of the supporting ring 400 close to the deformation portion 32, and the side of the limiting protrusion 41 close to the side wall of the non-return cavity 21 is fitted with the side of the edge of the deformation portion 32 away from the side wall of the non-return cavity 21. The limiting protrusion 41 can limit the position of the valve flap 300, so that the valve flap 300 can always fit with the end face 03 at the most appropriate angle to close the port of the first water inlet channel 11 or the first water outlet channel 12, thereby avoiding the position deviation of the valve flap 300 during the activity and enhancing the stability of the valve flap 300 during the backflow prevention process.

[0048] In some embodiments, Figure 5 , Figure 6 As shown, a concave portion 34 is provided on one side of the above-mentioned closing portion 31 away from the end surface 03, and the concave portion 34 is arranged opposite to the through hole 42. When water flows back, the water flows through the through hole 42 and then impacts the concave portion 34. The concave portion 34 can amplify the impact force of the water flow on the closing portion 31 when the water flows back, so that the valve flap 300 can be more closely attached to the end surface 03, thereby improving the anti-backflow effect of the valve flap 300.

[0049] like Figure 1 , Figure 2 , Figure 3 As shown, the filter element base provided in the present application includes a seat body 2000 and the above-mentioned water retaining member 1000, and an assembly port 201, a second water inlet channel 202 and a second water outlet channel 203 are provided on the seat body 2000, the assembly port 201 is used to assemble the filter element and the water retaining member 1000, the second water inlet channel 202 and the second water outlet channel 203 are both used to circulate water and are connected with the assembly port 201, the water retaining member 1000 is arranged inside the assembly port 201, and the first water inlet channel 11 on the water retaining member 1000 can be selectively connected with the second water inlet channel 202, and the first water outlet channel 12 on the water retaining member 1000 can be selectively connected with the second water outlet channel 203.

[0050] When the water retaining member 1000 is in a connected state, the first water inlet channel 11 and the first water outlet channel 12 are respectively connected with the second water inlet channel 202 and the second water outlet channel 203, and when the water retaining member 1000 is in a disconnected state, the first water inlet channel 11 and the first water outlet channel 12 are respectively disconnected with the second water inlet channel 202 and the second water outlet channel 203. In this way, the water retaining member 1000 can control the connection and disconnection of the water path inside the filter element base while avoiding backflow, so that the filter element base can avoid water leakage when the filter element is disassembled.

[0051] In some embodiments, Figure 3 , Figure 5As shown, an insertion cavity 204 is provided on the seat body 2000, and the insertion cavity 204 is respectively connected with the assembly port 201 and the second water outlet channel 203; correspondingly, the valve portion 200 of the water retaining member 1000 protrudes from the retaining portion 100 and is connected with the first water outlet channel 12, the valve flap 300 abuts against the port of the first water outlet channel 12, the valve portion 200 is inserted into the insertion cavity 204, and the water retaining member 1000 can be rotated relative to the seat body 2000 through the insertion cavity 204 to make the water retaining member 1000 in a connected state or a disconnected state; wherein, when the water retaining member 1000 is in a connected state, the flow channel hole 211 is aligned and connected with the second water outlet channel 203, and when the water retaining member 1000 is in a disconnected state, the flow channel hole 211 is staggered and separated from the second water outlet channel 203. Through the above design, when the water retaining member 1000 is in the disconnected state, the first water outlet channel 12 and the second water outlet channel 203 are in a completely isolated state, thereby preventing the residual water in the first water outlet channel 12 from flowing into the second water outlet channel 203 and causing leakage of the filter element base, making the filter element base more convenient to use when replacing the filter element.

[0052] In some embodiments, Figure 3 , Figure 5 , Figure 6 As shown, a sealing ring 500 is arranged between the side wall of the valve part 200 of the above-mentioned water retaining member 1000 and the inner wall of the insertion cavity 204, and the sealing ring 500 is arranged on the side of the flow channel hole 211 close to the retaining part 100, so that a good sealing structure can be formed between the valve part 200 and the side wall of the insertion cavity 204, which can prevent water from flowing into the interior of the assembly port 201 through the gap between the valve part 200 and the side wall of the insertion cavity 204, and further prevent water leakage from occurring at the filter element base.

[0053] In some embodiments, one of the seat body 2000 and the water retaining member 1000 is provided with a protrusion 01 , and the other of the seat body 2000 and the water retaining member 1000 is provided with a limiting groove 02 , and the protrusion 01 is disposed inside the limiting groove 02 and can slide along the limiting groove 02 .

[0054] like Figure 8As shown, the protrusion 01 is provided on the water baffle 1000, and the limiting groove 02 is formed on the seat body 2000. Of course, the protrusion 01 can also be provided on the seat body 2000, and then the limiting groove 02 is formed on the water baffle 1000. While the water baffle 1000 is rotating, the protrusion 01 slides along the limiting groove 02. When the protrusion 01 slides to one end of the limiting groove 02, the water baffle 1000 is in a communicating state. At this time, the flow channel hole 211 is aligned and communicated with the second water outlet channel 203. When the protrusion 01 slides to the other end of the limiting groove 02, the water baffle 1000 is in a disconnected state. At this time, the flow channel hole 211 is isolated and disconnected from the second water outlet channel 203. In summary, the mutual cooperation of the limiting groove 02 and the protrusion 01 can limit the rotation angle of the water baffle 1000 during actual use, so that the water baffle 1000 can be more accurately in a communicating state or a disconnected state, which facilitates the use of this filter element base.

[0055] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "provided", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0057] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water blocking member (1000), characterized in that, include: A blocking portion (100), wherein the blocking portion (100) is provided with a first water inlet channel (11) and a first water outlet channel (12); at least one valve portion (200), the valve portion (200) being connected to the blocking portion (100), the valve portion (200) being provided with a check cavity (21), the check cavity (21) being communicated with the first water inlet channel (11) or the first water outlet channel (12), a flow channel hole (211) being provided on a side wall of the check cavity (21), the flow channel hole (211) being communicated with the outside; a valve flap (300), the valve flap (300) being arranged inside the check cavity (21), one side of the valve flap (300) being in contact with a port of the first water inlet channel (11) or the first water outlet channel (12), and the other side of the valve flap (300) being connected to an inner wall of the check cavity (21); The valve flap (300) is made of elastic material, and when the water pressure on the side of the valve flap (300) opposite to the water flow direction reaches a predetermined level, the valve flap (300) can be deformed to detach from the port of the first water inlet channel (11) or the first water outlet channel (12).

2. The water retaining member (1000) according to claim 1, characterized in that The first water outlet channel (12) comprises a pure water channel and a waste water channel, the valve portion (200) is arranged at the pure water channel of the blocking portion (100), the check cavity (21) is connected to the pure water channel, and the valve flap (300) abuts against a port of the pure water channel.

3. The water retaining member (1000) according to claim 1, characterized in that, An end surface (03) is provided at the point where the first water inlet channel (11) or the first water outlet channel (12) abuts against the valve flap (300); The valve flap (300) comprises a closing portion (31) and a deformation portion (32), wherein the deformation portion (32) is respectively connected to the closing portion (31) and the inner wall of the check cavity (21); Wherein, the end surface (03) is tightly fitted with the side surface of the closing portion (31).

4. The water baffle (1000) according to claim 3, characterized in that, The water retaining member (1000) further comprises a bearing ring (400), the bearing ring (400) being arranged inside the non-return cavity (21), the bearing ring (400) being arranged on a side of the flow channel hole (211) close to the end surface (03), and the outer side of the bearing ring (400) being connected to the side wall of the non-return cavity (21), and a through hole (42) being provided in the middle of the bearing ring (400), and the through hole (42) being used for passing water; The deformation portion (32) is provided with a plurality of evenly distributed notches (33), and the notches (33) are used for passing water flow; Wherein, a side of the deformation portion (32) away from the closing portion (31) abuts against the carrying ring (400).

5. The water retaining member (1000) according to claim 4, characterized in that, A limiting protrusion (41) is provided on a side of the bearing ring (400) close to the deformation portion (32), and a side of the limiting protrusion (41) close to the inner wall of the non-return cavity (21) is in contact with a side of the edge of the deformation portion (32) away from the inner wall of the non-return cavity (21).

6. The water retaining member (1000) according to claim 4, characterized in that, A recess (34) is provided on a side of the closing portion (31) away from the end surface (03), and the recess (34) is opposite to the through hole (42).

7. A filter element base, characterized in that, include: A seat body (2000), the seat body (2000) is provided with an assembly port (201), a second water inlet channel (202) and a second water outlet channel (203), and both the second water inlet channel (202) and the second water outlet channel (203) are communicated with the assembly port (201); The water blocking member (1000) described in any one of claims 1 to 6, the water blocking member (1000) is assembled in the assembly port (201); Wherein, the first water inlet channel (11) can be selectively communicated with the second water inlet channel (202), and the first water outlet channel (12) can be selectively communicated with the second water outlet channel (203). When the water blocking member (1000) is in a connected state, the first water inlet channel (11) and the first water outlet channel (12) are respectively communicated with the second water inlet channel (202) and the second water outlet channel (203). When the water blocking member (1000) is in a disconnected state, the first water inlet channel (11) and the first water outlet channel (12) are respectively disconnected from the second water inlet channel (202) and the second water outlet channel (203).

8. The filter element base according to claim 7, characterized in that, An insertion cavity (204) is provided on the seat body (2000), the insertion cavity (204) is communicated with the assembly port (201), and the second water outlet channel (203) is communicated with the insertion cavity (204); The valve part (200) protrudes from the blocking part (100) and is communicated with the first water outlet channel (12). The valve flap (300) abuts against the port of the first water outlet channel (12). The valve part (200) is inserted into the insertion cavity (204). The water blocking member (1000) can rotate relative to the seat body (2000) through the insertion cavity (204) so that the water blocking member (1000) is in a connected state or a disconnected state; Wherein, when the water blocking member (1000) is in a connected state, the flow channel hole (211) is aligned and communicated with the second water outlet channel (203). When the water blocking member (1000) is in a disconnected state, the flow channel hole (211) is staggered and separated from the second water outlet channel (203).

9. The filter element base according to claim 8, characterized in that, A sealing ring (500) is directly arranged between the side wall of the valve part (200) and the side wall of the insertion cavity (204), and the sealing ring (500) is arranged on one side of the flow channel hole (211) close to the blocking part (100).

10. The filter element base according to claim 8, characterized in that, One of the seat body (2000) and the water blocking member (1000) is provided with a protrusion (01), and the other of the seat body (2000) and the water blocking member (1000) is provided with a limiting groove (02). The protrusion (01) is arranged inside the limiting groove (02) and can slide along the limiting groove (02); Wherein, when the protrusion (01) slides to one end of the limiting groove (02), the water blocking member (1000) is in the connected state. When the protrusion (01) slides to the other end of the limiting groove (02), the water blocking member (1000) is in the disconnected state.

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