Waterway butt joint structure, water purification assembly and water purifier

Abstract

The utility model discloses a waterway butt joint structure, water purification subassembly and water purifier relates to water purification technical field, waterway butt joint structure includes: first butt joint waterway structure and second butt joint waterway structure, the first butt joint waterway structure includes first pipeline and membrane structure, the membrane structure is installed in the first pipeline, and the membrane structure is installed in the second pipeline. At least part of the diaphragm structure is elastically and movably arranged, and the diaphragm structure has a closed state for closing the first pipeline and an open state for opening the first pipeline in the moving stroke; the second butt joint water path structure comprises a second pipeline and a jacking column, the jacking column is arranged in the second pipeline, the second pipeline is connected with the first pipeline in a sleeved mode, and the jacking column abuts against the membrane structure, so that the membrane structure is in an open state. According to the technical scheme, when the second pipeline is connected with the first pipeline in the sleeved mode, the ejection column ejects the membrane structure open, so that the second pipeline is communicated with the first pipeline all the time, and the technical effect that small-flow water flow can flow between the first pipeline and the second pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a water channel docking structure, a water purification component and a water purifier. Background Art

[0002] The existing water purifier includes a waterway plate and a filter. The filter is plugged into the waterway plate. When the filter is pulled out of the waterway plate, water will flow out of the pipe connected to the inside of the filter. In order to prevent the water inside the filter from flowing out, a check valve is provided on the pipe connecting the filter and the waterway plate.

[0003] However, for a check valve composed of an elastic diaphragm, when the elastic diaphragm is opened by the impact of the water flow, the water flow needs to overcome the elastic force of the elastic diaphragm to flow out, which also has a suppressive effect on the flow rate of the water. Especially when the water flow rate is small, the waterway will be blocked.

[0004] Therefore, the existing arrangement of the check valve may result in the problem that the water path cannot be connected when the water flow rate is small. Utility Model Content

[0005] The main purpose of the present utility model is to provide a water channel docking structure, a water purification component and a water purifier, and in particular to a water channel docking structure, which aims to solve the problem that a small water flow cannot circulate in the water channel when a non-return structure is provided.

[0006] To achieve the above-mentioned objectives, the water channel docking structure proposed in the utility model includes: a first docking water channel structure and a second docking water channel structure, the first docking water channel structure includes a first pipeline and a diaphragm structure, the diaphragm structure is installed in the first pipeline, at least part of the diaphragm structure can be elastically movable in the length direction of the first pipeline, the diaphragm structure has a closed state for closing the first pipeline and an open state for opening the first pipeline in its movable stroke, and the diaphragm structure can be reset to the closed state under the action of its elastic reset force; the second docking water channel structure includes a second pipeline and a top column, the top column is arranged in the second pipeline, the second pipeline is sleeved with the first pipeline, and the top column pushes against the diaphragm structure, so that the diaphragm structure is in an open state, and the second pipeline is connected to the first pipeline.

[0007] In one embodiment, the diaphragm structure includes a plurality of elastic diaphragms, which are distributed along the circumference of the first pipeline. One end of the plurality of elastic diaphragms is fixedly mounted on the first pipeline, and the other end is elastically movable so that the first pipeline can be closed under the elastic force of the plurality of elastic diaphragms.

[0008] The top column abuts against the other ends of the plurality of elastic diaphragms.

[0009] In one embodiment, the diaphragm structure further includes an annular mounting portion, which is mounted on the first pipeline. The multiple elastic diaphragms are arranged on the inner side of the annular mounting portion and one end of each diaphragm is connected to the annular mounting portion.

[0010] In one embodiment, a side surface of the annular mounting portion is in contact with an end surface of the first pipe;

[0011] The waterway docking structure also includes a limiting seat, which includes a fixed sleeve sleeved on the periphery of the first pipeline and a limiting portion extending from the inner side of the fixed sleeve, and the limiting portion abuts the other side of the annular mounting portion.

[0012] In one embodiment, the fixing sleeve is threadedly connected to the first pipeline; and / or,

[0013] One of a side surface of the annular mounting portion and an end surface of the first pipeline is provided with a positioning protrusion, and the other is provided with a positioning groove.

[0014] In one embodiment, the top column is arranged in the second pipeline; and / or,

[0015] The top column is arranged in the second pipeline, and the inner side wall of the second pipeline is provided with a connecting portion connecting the top column and the second pipeline. The first pipeline is sleeved in the second pipeline, and one end of the first pipeline abuts against the connecting portion.

[0016] In one embodiment, a first channel is provided in the top column and passes through both ends thereof, and the second pipeline is connected to the first pipeline at least through the first channel; and / or,

[0017] A second channel is formed in the second pipeline and on the periphery of the top column, and the second pipeline is communicated with the first pipeline at least through the second channel.

[0018] In one embodiment, the first pipeline is sleeved inside the second pipeline, and a sealing ring is provided between the outer side of the first pipeline and the inner side of the second pipeline.

[0019] The present utility model further provides a water purification component, which includes: a filter and a waterway plate, wherein the waterway docking structure is provided between the filter and the waterway plate.

[0020] The utility model also provides a water purifier, which includes the water purification component.

[0021] The technical solution of the utility model is that when the second pipeline is connected to the first pipeline, the top column pushes open the diaphragm structure, so that the second pipeline is always connected to the first pipeline, and the technical effect of achieving a smaller flow of water can also flow between the first pipeline and the second pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 This is a structural diagram of an embodiment of the waterway docking structure provided by the utility model;

[0024] Figure 2 for Figure 1 A schematic structural diagram of the second docking waterway structure of the intermediate waterway docking structure;

[0025] Figure 3 for Figure 1 A schematic diagram of the structure of the diaphragm structure of the intermediate water channel docking structure in the open state;

[0026] Figure 4 This is a structural schematic diagram of an embodiment of a water purification component provided by the utility model.

[0027] Figure 5 for Figure 4 A schematic diagram of the structure of the water purification component from another perspective;

[0028] Figure 6 for Figure 4 Exploded diagram of the water purification component.

[0029] Description of Figure Numbers:

[0030] 100. Waterway docking structure; 1. First docking waterway structure; 11. First pipeline; 111. Positioning groove; 12. Diaphragm structure; 121. Elastic diaphragm; 122. Annular mounting portion; 2. Second docking waterway structure; 21. Second pipeline; 22. Top column; 23. Connecting portion; 24. First channel; 25. Second channel; 3. Sealing ring; 4. Limiting seat; 41. Fixing sleeve; 411. Positioning protrusion; 42. Limiting portion; 1000. Water purification component; 200. Filter; 300. Waterway plate.

[0031] 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

[0032] 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 shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] Existing water purifiers include a waterway plate and a filter. The filter is plugged into the waterway plate. When the filter is removed from the waterway plate, water will flow out of the pipe connecting the filter's interior. To prevent this, a check valve is installed in the pipe connecting the filter to the waterway plate. However, the check valve, which is composed of an elastic diaphragm, opens under the impact of the water flow. Since the water flow must overcome the elastic force of the diaphragm to allow water to flow out, it also has a suppressive effect on the water flow rate. In particular, when the water flow rate is low, the waterway will be blocked. Therefore, the existing check valve installation method may result in the waterway being unable to communicate when the water flow rate is low.

[0036] The utility model provides a waterway docking structure.

[0037] See also Figure 1In one embodiment of the present utility model, the water channel docking structure 100 includes a first docking water channel structure 1 and a second docking water channel structure 2. The first docking water channel structure 1 includes a first pipe 11 and a diaphragm structure 12, the diaphragm structure 12 is installed in the first pipe 11, and at least a portion of the diaphragm structure 12 is elastically movable in the length direction of the first pipe 11. The diaphragm structure 12 has a closed state that closes the first pipe 11 and an open state that opens the first pipe 11 in its movable stroke, and the diaphragm structure 12 can be reset to the closed state under the action of its elastic reset force; the second docking water channel structure 2 includes a second pipe 21 and a top column 22, the top column 22 is arranged in the second pipe 21, the second pipe 21 is sleeved with the first pipe 11, and the top column 22 pushes against the diaphragm structure 12, so that the diaphragm structure 12 is in the open state, and the second pipe 21 is connected to the first pipe 11.

[0038] The technical solution of the present invention is to respectively arrange the diaphragm structure 12 and the top column 22 in the first pipeline 11 and the second pipeline 21. The diaphragm structure 12 is arranged in the first pipeline 11. The diaphragm structure 12 is elastic. When it is not affected by external forces but only by elastic forces, the diaphragm structure 12 is in a closed state to block the passage of the first pipeline 11. The top column 22 is arranged in the second pipeline 21. There is a certain gap between the top column 22 and the second pipeline 21 to ensure that the water flow can flow in the second pipeline 21. When the first pipeline 11 and the second pipeline 21 need to be connected, the first pipeline 11 and the second pipeline 21 are partially connected. The first pipeline may be sleeved on the outside of the second pipeline, or the second pipeline may be sleeved on the outside of the first pipeline. Taking the second pipeline sleeved on the outside of the first pipeline as an example (such as Figure 1 ), the first pipe 11 extends into the second pipe 21. During the extension process, the diaphragm structure 12 approaches the top post 22, then contacts it. Finally, the top post 22 pushes the diaphragm structure 12 open, placing it in an open state, connecting the first pipe 11 and the second pipe 21. Because the diaphragm structure 12 is pushed open by the top post 22 and supported by the top post 22, the diaphragm structure 12 is always kept in an open state. Therefore, the elastic force of the diaphragm structure 12 does not act on the water flow and does not hinder the flow of water. Therefore, even when the flow rate of water is small, it can pass through the second pipe 21 and flow into the first pipe 11. When the first pipe 11 is withdrawn from the second pipe 21, the top post 22 disengages from the diaphragm structure 12, and the top post 22 releases the restriction on the diaphragm structure 12. Under the action of the elastic force, the diaphragm structure 12 returns to its original state and is again in a closed state, thereby blocking the passage of the first pipe 11 and preventing water from flowing back.

[0039] The diaphragm structure 12 can be a single elastic diaphragm 121 or multiple elastic diaphragms 121. For a solution that includes only one elastic diaphragm 121, the edge of the elastic diaphragm 121 is fixedly connected to the wall of the first pipe. To fully open the elastic diaphragm 121, the first pipe 11 needs to be inserted into the second pipe 21 so that the top column 22 completely pushes the elastic diaphragm 121 open, positioning the elastic diaphragm 121 on one side of the top column 22. The elastic diaphragm 121 is then bent circumferentially along the first pipe 11 to wrap around the outer periphery of the top column 22. Due to the large overall area of ​​the elastic diaphragm 121, it is subject to significant bending and deformation. The elastic diaphragm 121 is generally a silicone diaphragm or a rubber diaphragm. Long-term high stress on the elastic diaphragm 121 may cause material fatigue, resulting in a decrease in the mechanical properties of the elastic component, including a decrease in elastic modulus and a weakening of strength. Since the elastic diaphragm 121 is used in a liquid environment, its service life is naturally shortened. Therefore, when the top column 22 pushes the elastic diaphragm 121 open and connects the first pipe 11 with the second pipe 21, the elastic diaphragm 121 is subjected to less stress and produces less deformation, so as to maximize the service life of the elastic diaphragm 121. Figure 3 The diaphragm structure 12 includes a plurality of elastic diaphragms 121, which are distributed along the circumference of the first pipeline 11. One end of the plurality of elastic diaphragms 121 is fixedly mounted on the first pipeline 11, and the other end is movably arranged. Therefore, the size of a single diaphragm in the circumferential direction of the first pipeline 11 is small. When it is opened, the bending generated along the circumference of the first pipeline 11 is small, and the stress it is subjected to is small, so that it can obtain a longer service life. The other ends of the plurality of elastic diaphragms 121 converge at the center position of the first pipeline 11, and the top column 22 is arranged at the center position of the second pipeline 21. Therefore, the top column 22 can be used to push the other ends of the plurality of elastic diaphragms 121 at the same time, so that the plurality of elastic diaphragms 121 are separated and in an open state. In addition, multiple elastic diaphragms 121 are arranged along the circumference. When the first pipeline 11 is drawn out of the second pipeline 21, the liquid in the first pipeline 11 may flow back. The multiple elastic diaphragms 121 can disperse the impact force of the liquid and reduce damage to the diaphragm structure 12. This design helps to extend the service life of the diaphragm structure 12 and ensure its reliability under various working conditions.

[0040] The diaphragm structure 12 includes more than just a plurality of elastic diaphragms 121. If the plurality of elastic diaphragms 121 were directly installed in the first pipe 11, it would be inconvenient to secure them directly. Furthermore, during installation, it would be difficult to ensure that adjacent elastic diaphragms 121 fit tightly together, ensuring that the integrated diaphragm structure 12 is in a closed state after installation. Therefore, in this embodiment, the diaphragm structure 12 also includes an annular mounting portion 122. The plurality of elastic diaphragms 121 are disposed on the inner side of the annular mounting portion 122, with one end connected to the annular mounting portion 122. The plurality of elastic diaphragms 121 are first installed on the annular mounting portion 122, ensuring that the plurality of elastic diaphragms 121 are installed on the annular mounting portion 122 and in a closed state. The annular mounting portion 122 is then installed in the first pipe 11. In this manner, the annular mounting portion 122 facilitates the installation of the plurality of elastic diaphragms 121, ensuring that the plurality of elastic diaphragms 121 are in a closed state, and the annular mounting portion 122 also facilitates the installation of the plurality of elastic diaphragms 121 in the first pipe 11.

[0041] Since installing the annular mounting portion 122 on the inner wall of the first pipe 11 increases the difficulty of installation and may also cause a gap between the annular mounting portion 122 and the inner wall of the first pipe 11, it will prevent the liquid in the first pipe 11 from flowing back. Therefore, in this embodiment, the annular mounting portion 122 is not arranged inside the first pipe 11, but is arranged at the end of the first pipe 11. Arranging it outside the first pipe 11 is convenient for installation on the one hand, and makes it easier for the elastic diaphragm 121 to completely cover the end of the first pipe 11 on the other hand, preventing the liquid in the first pipe 11 from flowing back. One side of the annular mounting portion 122 is in contact with one end face of the first pipe 11; the waterway docking structure 100 also includes a limit seat 4, which includes a fixed sleeve 41 that is sleeved on the outer periphery of the first pipe 11, and a limit portion 42 that extends from the inner side of the fixed sleeve 41, and the limit portion 42 abuts the other side of the annular mounting portion 122. The end of the first pipeline 11 and the limiting portion 42 jointly clamp the diaphragm structure 12 in the length direction of the first pipeline 11 to fix the diaphragm structure 12 at the end of the first pipeline 11 .

[0042] Since the diaphragm structure 12 has a service life, the elastic diaphragm 121 made of silicone or rubber will age and its elastic force will weaken. Then, the elastic diaphragm 121 will no longer be in a closed state. Therefore, after a period of use, the elastic diaphragm 121 needs to be replaced. Therefore, the annular mounting portion 122 cannot be directly welded to the first pipe 11, so the annular mounting portion 122 needs to be detachably mounted on the first pipe 11. There are many ways to detach it. In this embodiment, the fixed sleeve 41 is threadedly connected to the first pipe 11. For the threaded connection method, in which the fixed sleeve 41 is threadedly connected to the first pipe 11, the sealing performance of the connection is better. Even if water overflows from the end face of the first pipe 11 and the limiting portion 42, it can prevent water from leaking from the first pipe 11 and the fixed sleeve 41. One of the side surface of the annular mounting portion 122 and the end face of the first pipe 11 is provided with a positioning protrusion 411, and the other is provided with a positioning groove 111. Regarding the connection method between the positioning protrusion 411 and the positioning groove 111, specifically, a positioning protrusion 411 can be provided on the outer side of the annular mounting portion 122, and the positioning groove 111 is provided on the inner side wall of the fixed sleeve 41, extending from the end of the fixed sleeve 41 along the length direction of the fixed sleeve 41, and then extending along the circumference of the fixed sleeve 41. In the installation method of the fixed sleeve 41, the positioning groove 111 corresponds to the positioning protrusion 411, and the fixed sleeve 41 is moved along the length direction of the fixed sleeve 41, and then the fixed sleeve 41 is rotated. The positioning groove 111 limits the positioning protrusion 411 in the length direction of the fixed sleeve 41. When disassembling, the fixed sleeve 41 is first rotated, and then the fixed sleeve 41 is pulled away from the fixed sleeve 41 along the length direction of the fixed sleeve 41. In this way, the disassembly is completed. The installation and disassembly methods are more convenient and can be completed by hand without the help of tools.

[0043] When the first pipe 11 is connected to the second pipe 21, during the insertion of the first pipe 11 into the second pipe 21, it is not known when the push post 22 will completely push open the multiple elastic membranes 121. Furthermore, the first pipe 11 cannot be positioned in the insertion direction, which results in the push post 22 disengaging the multiple elastic membranes 121 as the first pipe 11 penetrates deeper. Because the push post 22 cannot be fixed to the center position of the second pipe 21 on its own, a connecting portion 23 is required to secure the second push post 22. Therefore, a connecting portion 23 is provided on the inner sidewall of the second pipe 21, connecting the push post 22 and the second pipe 21. The first pipe 11 is sleeved within the second pipe 21, and one end of the first pipe 11 abuts against the connecting portion 23. The connecting portion 23 connects to the end of the push post 22 that is away from the port for inserting the first pipeline 11 into the second pipeline 21. After the push post 22 pushes aside the multiple elastic membranes 121, the connecting portion 23 abuts against the first pipeline 11, limiting the position of the first pipeline 11. When the first pipeline 11 cannot be inserted further, it indicates that the push post 22 has pushed aside the multiple elastic membranes 121. Whether the first pipeline 11 or the second pipeline 21 is arranged outside, and whether the push post 22 is completely located inside the second pipeline 21, can be flexibly configured according to actual needs, as long as the above requirements are met.

[0044] In the prior art, the check valve with a valve core is provided. During the use of the water purifier 10000, the valve core will occupy a large space in the pipeline, affecting the water flow rate and making the water purification efficiency low. Corresponding to the present invention, the water channel docking structure 100 is analyzed. For the second pipeline 21, the connecting portion 23 is generally configured as a rod, and the number is small, so as not to block the second channel 25 between the inner wall of the second pipeline 21 and the periphery of the top column 22 (see Figure 2 ), water can flow through the second channel 25. For the first pipeline 11, when the top column 22 pushes open the multiple elastic diaphragms 121, a small gap between two adjacent elastic diaphragms 121 and the periphery of the top column 22 is allowed to flow. If the top column 22 is set to be solid, then, like the valve core in the prior art, it occupies most of the volume of the water flow channel, which will severely limit the water flow rate. Therefore, in this embodiment, the top column 22 is provided with a first channel 24 extending through both ends thereof, and the second pipeline 21 is connected to the first pipeline 11 at least through the first channel 24; and a second channel 25 is formed within the second pipeline 21 and on the periphery of the top column 22, and the second pipeline 21 is connected to the first pipeline 11 at least through the second channel 25. The thickness of the top column 22 can be as thin as possible, as long as it does not deform and can push open the multiple elastic diaphragms 121. Therefore, the thickness of the top column 22 has little effect on the water flow rate, ensuring the efficiency of liquid flow.

[0045] When the second pipeline 21 is connected to the first pipeline 11, there may be a gap between the inner wall of the second pipeline 21 and the outer wall of the first pipeline 11. Then, when water flows through, water may flow out from the gap, causing water leakage. A sealing ring 3 is provided between the outer side of the first pipeline 11 and the inner side of the second pipeline 21 to achieve a sealing effect and avoid the occurrence of water leakage.

[0046] The water channel docking structure 100 has many applications, such as being set between a water dispenser and a water bucket, or inside a water purification component 1000.

[0047] The present invention also provides a water purification assembly 1000, see Figures 4 to 6 The water purification assembly 1000 includes a filter 200 and a waterway plate 300, wherein the waterway docking structure 100 is disposed between the filter 200 and the waterway plate 300. Specifically, a water inlet docking structure and a water outlet docking structure are directly disposed between the filter 200 and the waterway plate 300, with at least one of the water inlet docking structure and the water outlet docking structure being configured as the waterway docking structure 100. The specific structure of the waterway docking structure 100 is similar to that of the above-described embodiments. Since the water purification assembly 1000 utilizes all the technical solutions of all the above-described embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-described embodiments, and therefore will not be further elaborated here.

[0048] In addition, for the water purification component 1000, the water inlet pipe and the water outlet pipe on the filter 200 are both configured as a first pipe 11, and a diaphragm structure 12 is arranged in the first pipe 11. The water inlet pipe and the water outlet pipe of the waterway plate 300 are both configured as a second pipe 21, and a top column 22 is arranged in the second pipe 21. The water outlet pipe of the waterway plate 300 is used to communicate with the water inlet pipe of the filter 200, and the water inlet pipe of the waterway plate 300 is used to communicate with the water outlet pipe of the filter 200. When the filter 200 is inserted into the waterway plate 300, a loop is formed between the two, and the filter 200 filters the water flowing through. When the filter 200 is pulled out of the waterway plate 300, the diaphragm structure 12 acts as a check valve to prevent the water inside the filter 200 from flowing out.

[0049] The present invention further provides a water purifier, comprising a water purification assembly 1000, which includes the water purification assembly 1000 and a waterway plate 300. A waterway docking structure 100 is provided between the filter 200 and the waterway plate 300. The specific structure of the waterway docking structure 100 is similar to that of the above-mentioned embodiments. Since the present water purifier utilizes all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described in detail here.

[0050] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A waterway docking structure, characterized in that: include: A first docking water channel structure includes a first pipeline and a diaphragm structure, wherein the diaphragm structure is mounted on the first pipeline, and at least a portion of the diaphragm structure is elastically movable in the longitudinal direction of the first pipeline. The diaphragm structure has a closed state for sealing the first pipeline and an open state for opening the first pipeline during its movable range, and the diaphragm structure can be reset to the closed state under the action of its elastic reset force; as well as, The second docking water channel structure includes a second pipeline and a top column. The top column is set in the second pipeline. The second pipeline is sleeved with the first pipeline. The top column presses against the diaphragm structure, so that the diaphragm structure is in an open state, and the second pipeline is connected to the first pipeline.

2. The waterway docking structure according to claim 1, characterized in that: The diaphragm structure includes a plurality of elastic diaphragms, which are distributed along the circumference of the first pipeline. One end of the plurality of elastic diaphragms is fixedly mounted on the first pipeline, and the other end is elastically movable so that the first pipeline can be closed under the elastic force of the plurality of elastic diaphragms. The top column abuts against the other ends of the plurality of elastic diaphragms.

3. The waterway docking structure according to claim 2, characterized in that: The diaphragm structure further includes an annular mounting portion, which is mounted on the first pipeline. The plurality of elastic diaphragms are arranged on the inner side of the annular mounting portion, and one end of the elastic diaphragms is connected to the annular mounting portion.

4. The waterway docking structure according to claim 3, characterized in that: One side surface of the annular mounting portion is in contact with one end surface of the first pipe; The waterway docking structure also includes a limiting seat, which includes a fixed sleeve sleeved on the periphery of the first pipeline and a limiting portion extending from the inner side of the fixed sleeve, and the limiting portion abuts the other side of the annular mounting portion.

5. The waterway docking structure according to claim 4, characterized in that: The fixing sleeve is threadedly connected to the first pipeline; and / or, One of a side surface of the annular mounting portion and an end surface of the first pipeline is provided with a positioning protrusion, and the other is provided with a positioning groove.

6. The waterway docking structure according to claim 1, characterized in that: The top column is arranged in the second pipeline; and / or, The top column is arranged in the second pipeline, and the inner side wall of the second pipeline is provided with a connecting portion connecting the top column and the second pipeline. The first pipeline is sleeved in the second pipeline, and one end of the first pipeline abuts against the connecting portion.

7. The waterway docking structure according to claim 1 or 6, characterized in that: The top column is provided with a first channel extending through both ends thereof, and the second pipeline is connected to the first pipeline at least through the first channel; and / or, A second channel is formed in the second pipeline and on the periphery of the top column, and the second pipeline is communicated with the first pipeline at least through the second channel.

8. The waterway docking structure according to claim 1, characterized in that: The first pipeline is sleeved in the second pipeline, and a sealing ring is provided between the outer side of the first pipeline and the inner side of the second pipeline.

9. A water purification component, characterized in that: include: Filters; as well as, Waterway board; Wherein, a water channel docking structure as described in any one of claims 1 to 8 is provided between the filter and the water channel plate.

10. A water purifier, characterized in that: Comprising the water purification component as described in claim 9.

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