Bidirectional water locking type filter element mounting structure and water purifier

Abstract

The utility model relates to a bidirectional water locking type filter element mounting structure. The utility model relates to a bidirectional water locking type filter element mounting structure which comprises a filter element provided with a filter element flow channel, and a first water locking assembly is arranged in the filter element flow channel; the base is provided with a base flow channel corresponding to the filter element flow channel, and a second water locking assembly is arranged in the base flow channel; when the filter element and the base are combined in a specific mode, the first water locking assembly abuts against the second water locking assembly, and the filter element flow channel and the base flow channel are communicated. When the filter element is separated from the base, the first water locking assembly and the second water locking assembly are respectively recovered to initial positions, so that the filter element flow channel and the base flow channel are closed. According to the bidirectional water locking type filter element mounting structure, the water locking assemblies are respectively mounted at the water inlet and the water outlet of the filter element and the water inlet and the water outlet of the base, so that when the filter element is mounted on the base, a water path is automatically communicated, and when the filter element is detached from the base, the filter element and the base automatically stop water, the problems of water resource waste and water splashing are avoided, and the filter element replacement portability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purification technical field, in particular to a bidirectional water locking type filter core mounting structure and water purifier. BACKGROUND

[0002] The water purifier is a water treatment equipment for deep filtration and purification of water quality, which purifies water through a filter core, and the water reaches a certain cleanliness after passing through the filter core in the water purifier. However, with the extension of use time, impurities in the water will block the filter core, and the filter core needs to be replaced to maintain the filtering effect on the water. When replacing the filter core, the water inlet valve outside the water purifier needs to be closed first to prevent water from the external water source from flowing out of the waterway board of the water purifier. In addition, there is water storage in the filter core and the waterway board of the water purifier. After closing the water inlet valve, the water storage in the filter core and the waterway board will still flow out of the water inlet and outlet, causing the water purifier to fail to timely transmit water to the newly replaced filter core, not only wasting water resources, but also splashing the operator's clothes and shoes, or flowing to the floor, causing inconvenience to the use of the water purifier. Moreover, during the installation process, dust or bacteria may enter the newly replaced filter core from the water inlet of the filter core, polluting the filter core and thus polluting the water resources. SUMMARY

[0003] Therefore, one of the purposes of the utility model is to provide a bidirectional water locking type filter core mounting structure, which realizes automatic water connection when the filter core is installed to the base, and automatic water stop when the filter core is detached from the base, avoids water resource waste and splashing, and improves the portability of replacing the filter core.

[0004] Another purpose of the utility model is to provide a water purifier with the bidirectional water locking type filter core mounting structure, which can realize quick replacement of the filter core without closing the external water inlet valve, is simple to operate, and has strong practicality.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bidirectional water locking type filter core mounting structure comprises:

[0007] The filter core is provided with a filter core flow channel, and the filter core flow channel is provided with a first water locking assembly;

[0008] The base is provided with a base flow channel corresponding to the filter core flow channel, and the base flow channel is provided with a second water locking assembly;

[0009] When the filter element and the base are combined in a specific manner, the first water locking assembly and the second water locking assembly abut, the first water locking assembly moves to the inside of the filter element, the second water locking assembly moves to the inside of the base, and the filter element flow channel and the base flow channel are connected; when the filter element and the base are separated, the first water locking assembly and the second water locking assembly return to the initial position respectively, and the filter element flow channel and the base flow channel are closed.

[0010] Further, the first water locking assembly and the second water locking assembly are provided with a sliding member and a reset member, the sliding member is arranged in the flow channel, the sliding member is provided with a sealing part, the sealing part has a gap with the inner wall of the flow channel, and the inner wall of the flow channel is provided with a sealing table matched with the sealing part; when the filter element and the base are combined in a specific manner, the sliding member compresses the reset member, so that the sealing part is separated from the sealing table; when the filter element and the base are separated, the restoring force of the reset member makes the sealing part abut against the sealing table.

[0011] Further, the sealing part includes a sealing ring, the sealing ring is fixedly arranged on the outer side of the sliding member, or the sealing ring is fixedly arranged on the side of the sealing table facing the flow channel, and the outer diameter of the sealing ring is greater than the inner diameter of the sealing table; when the filter element and the base are separated, the sealing ring abuts against the sealing table.

[0012] Further, the sealing part includes a water stopping table, the water stopping table is fixedly arranged on the outer side of the sliding member, located on the side of the sealing ring away from the sealing table, and the outer diameter of the water stopping table is greater than the inner diameter of the sealing ring and less than the inner diameter of the flow channel; when the filter element and the base are separated, the water stopping table abuts against the sealing ring.

[0013] Further, when the sealing ring is fixedly arranged on the outer side of the sliding member, an inclined surface is arranged on the side of the sealing table facing the sealing ring, the inclined surface is inclined to the direction close to the sliding member along the direction from the inside to the outside of the flow channel; when the filter element and the base are separated, the inclined surface abuts against the sealing ring.

[0014] Further, the end of the sliding member facing the outside of the flow channel is provided with a water passing port, and the side wall is provided with a plurality of through holes, the water passing port and the through holes are communicated to form a water passing waterway; when the filter element and the base are combined in a specific manner, the through holes at least partially protrude from the side of the sealing table facing the inside of the flow channel.

[0015] Further, the reset member is arranged on the side of the sealing table away from the outside of the flow channel, one end abuts against the sealing part of the sliding member, and the other end abuts against the inner wall of the flow channel; or the reset member is arranged on the side of the sealing table facing the outside of the flow channel, one end abuts against the sliding member, and the other end abuts against the sealing table.

[0016] Further, the reset member is a conical spring, one end of the conical spring with a small bottom surface is fixedly connected to the sliding member, and the other end with a large bottom surface is fixedly connected to the inner wall of the flow channel or the sealing table.

[0017] Furthermore, the outer diameters of the sliding members of the first and second water-locking components are equal; or, the outer diameters of the sliding members of the first and second water-locking components are unequal, and the water outlet of the sliding member with the larger outer diameter is provided with a limiting structure that abuts against the other sliding member.

[0018] On the other hand, this utility model also provides a water purifier, including the above-mentioned bidirectional water-locking filter cartridge installation structure.

[0019] The beneficial effects of this utility model are as follows:

[0020] (1) By setting a water-locking component in each flow channel of the filter element, the water remaining in the filter element cavity is prevented from flowing out during the process of removing the filter element from the base;

[0021] (2) By setting a water-locking component in each flow channel of the base, the filter element can be directly disassembled without closing the external water valve, and the residual water in the flow channel of the base can be prevented from flowing out.

[0022] (3) By setting the sealing platform as an inclined surface, the contact area between the sealing platform and the sealing element is increased, thereby enhancing the sealing effect;

[0023] (4) By setting a groove in the sliding part to accommodate the sealing ring, the stability of the sealing ring is increased and its displacement is prevented;

[0024] (5) By setting a water-stop platform to abut the sealing ring, the sealing ring deforms under the combined action of the sealing platform and the water-stop platform, which enhances the sealing effect and prevents water from flowing out from the gap between the sealing ring and the sliding part, further enhancing the sealing effect.

[0025] (6) By setting the reset component as a conical spring, the stability of the water-locking component is improved, so that the sliding component moves as parallel to the flow channel as possible without skewing or deformation.

[0026] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0027] Figure 1 An exploded view of a bidirectional water-locking filter cartridge installation structure provided in an embodiment of this application;

[0028] Figure 2 for Figure 1 A cross-sectional view of the installation structure of the two-way water-locking filter element;

[0029] Figure 3 This is a schematic diagram of the structure of a water-locking component provided in one embodiment of this application;

[0030] Figure 4A structure diagram of a water locking assembly according to an embodiment of the present application is provided.

[0031] Figure 5 A structure diagram of a water locking assembly according to an embodiment of the present application is provided.

[0032] Figure 6 A structure diagram of a water locking assembly according to an embodiment of the present application is provided. Figure 1 A schematic diagram of a disassembled state of a bidirectional water locking filter core mounting structure according to an embodiment of the present application is provided.

[0033] Figure 7 A schematic diagram of an assembled state of a bidirectional water locking filter core mounting structure according to an embodiment of the present application is provided. Figure 6 A schematic diagram of an assembled state of a bidirectional water locking filter core mounting structure according to an embodiment of the present application is provided.

[0034] Figure 8 A structure diagram of a filter core according to an embodiment of the present application is provided. Figure 6

[0035] A structure diagram of a filter core according to an embodiment of the present application is provided. Figure 9

[0036] A structure diagram of a filter core according to an embodiment of the present application is provided. Figure 10 Figure 1 A structure diagram of a filter core according to an embodiment of the present application is provided.

[0037] Figure 11 A structure diagram of a filter core according to an embodiment of the present application is provided. Figure 1 A structure diagram of a filter core according to an embodiment of the present application is provided.

[0038] In the figure: 10 - filter core; 11 - filter core flow channel; 12 - first shell; 13 - first shaft hole; 14 - second shell; 15 - second shaft hole; 20 - base; 21 - base flow channel; 22 - bottom shell; 221 - port; 23 - middle shell; 231 - adapter; 232 - first joint part; 233 - second joint part; 30 - first water locking assembly; 31 - first sliding part; 311 - first water passing opening; 312 - first through hole; 313 - partition plate; 32 - first sealing part; 321 - first sealing ring; 322 - first water stopping platform; 33 - first reset part; 34 - first sealing platform; 40 - second water locking assembly; 41 - second sliding part; 411 - second water passing opening; 412 - second through hole; 42 - second sealing part; 421 - second sealing ring; 422 - second water stopping platform; 43 - second reset part; 44 - second sealing platform. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.​

[0040] In the description of the utility model, it needs to be explained that the terms "upper", "bottom", "top", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise specified, the meaning of "multiple" is two or more.

[0041] In the description of the utility model, it also needs to be explained that, unless otherwise specified and limited, the terms "set", "install", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0042] The waterway plate and the filter element of the existing water purifier are usually not provided with a water stop valve, so that when the filter element is replaced, the water inlet valve outside the water purifier needs to be closed first to avoid the water in the external water source from flowing out of the waterway plate of the water purifier. Even so, the stored water in the filter element and the waterway plate of the water purifier will still flow out of the water inlet and outlet of the filter element and the waterway plate, causing the water purifier to be unable to timely transmit water to the newly replaced filter element, not only wasting water resources, but also splashing the operator's clothes, shoes, or flowing to the floor, causing inconvenience to the use of the water purifier. And in the installation process, dust or bacteria may enter the newly replaced filter element from the water inlet of the filter element, polluting the filter element and further polluting the pure water in the water purifier.

[0043] Based on this, the utility model provides a bidirectional water locking type filter element installation structure, which installs an automatic water stop assembly at the water inlet and outlet of the filter element and the base, realizes automatic water connection when the filter element is installed to the base, and automatic water stop of the filter element and the base when the filter element is dismounted from the base.

[0044] Please refer to Figure 1The embodiment of the application provides a bidirectional water-locking type filter core mounting structure, which comprises a filter core 10 and a base 20, the filter core 10 is provided with a filter core flow channel 11, the filter core flow channel is provided with a first water-locking assembly 30, the base 20 is provided with a base flow channel 21 corresponding to the filter core flow channel 11 and used for connecting an external flow channel, the base flow channel is provided with a second water-locking assembly 40; when the filter core 10 and the base 20 are combined in a specific way, the first water-locking assembly 30 and the second water-locking assembly 40 abut, the first water-locking assembly 30 moves to the inside of the filter core 10, the second water-locking assembly 40 moves to the inside of the base 20, and then the filter core flow channel 11 and the base flow channel 21 are conducted; when the filter core 10 and the base 20 are separated, the first water-locking assembly 30 and the second water-locking assembly 40 respectively return to initial positions, so that the filter core flow channel 11 and the base flow channel 21 are closed. The specific combination of the filter core 10 and the base 20 comprises plug-in or screw connection of a first end of the filter core 10 in the base 20.

[0045] Compared with the prior art, the first water-locking assembly 30 and the second water-locking assembly 40 are arranged in the filter core flow channel 11 and the base flow channel 20 respectively, when the filter core 10 and the base 20 are disassembled, the water-locking assemblies automatically lock water, water resource waste and water splashing problems during replacement of the filter core 10 are avoided, the filter core 10 can be replaced without closing an external water inlet valve, operation is simple, user experience is improved, in addition, the water-locking assemblies can prevent external dust and bacteria from entering the filter core 10 and the base 20, keep the filter core 10 clean, prevent pollution, the filter core 10 and the base 20 are connected in a plug-in or screw connection mode, further improving the convenience of replacement of the filter core 10, and the user can replace the filter core 10 by himself, without needing professional personnel to install or disassemble on site.

[0046] Please refer to Figures 1-5 Further, in some embodiments, the first water-locking assembly 30 comprises a first sliding piece 31 and a first reset piece 33, the first sliding piece 31 is slidingly arranged in the filter core flow channel 11, the first sliding piece 31 is provided with a first sealing part 32, a gap is arranged between the first sealing part 32 and an inner wall of the filter core flow channel 11, the inner wall of the filter core flow channel 11 is provided with a first sealing table 34 matched with the first sealing part 32, the first reset piece 33 makes the first sealing part 32 abut on the first sealing table 34, the first water-locking assembly 30 realizes conduction and closure of the filter core flow channel 11 through movement of the first sliding piece 31 and elastic force of the first reset piece 33.

[0047] The second water locking assembly 40 comprises a second sliding member 41 and a second restoring member 43. The second sliding member 41 is arranged in the base flow channel 21. The second sliding member 41 is provided with a second sealing portion 42. A gap is arranged between the second sealing portion 42 and the inner wall of the base flow channel 21. The inner wall of the base flow channel 21 is provided with a second sealing platform 44 matched with the second sealing portion 42. The second restoring member 43 is arranged to make the second sealing portion 42 abut against the second sealing platform 44. The second water locking assembly 40 realizes the opening and closing of the base flow channel 21 through the movement of the second sliding member 41 and the elastic force of the second restoring member 43. Specifically, the first restoring member 33 in the filter core flow channel 11 makes the first sealing portion 32 of the first sliding member 31 in the filter core flow channel 11 abut against the first sealing platform 34 of the inner wall of the filter core flow channel 11. The second restoring member 43 in the base flow channel 21 makes the second sealing portion 42 of the second sliding member 41 in the base flow channel 21 abut against the second sealing platform 44 of the inner wall of the base flow channel 21.

[0048] Further, the first sealing portion 32 comprises a first sealing ring 321. The first sealing ring 321 is arranged on the first sliding member 31 and located on the side of the first sealing platform 34 away from the outside of the filter core flow channel 11. Alternatively, the first sealing ring 321 is fixedly arranged on the side of the first sealing platform 34 facing the filter core flow channel 21. The outer diameter of the first sealing ring 321 is greater than the inner diameter of the first sealing platform 34 and less than the inner diameter of the inner wall of the flow channel, so as to avoid affecting the water flow in the flow channel when water flows. The elastic force of the first restoring member 33 makes the first sealing ring 321 abut against the first sealing platform 34, thereby realizing water locking. Preferably, the first sliding member 31 is provided with a groove. The first sealing ring 321 is fixedly arranged in the groove. More preferably, the groove is arc-shaped and matches the shape of the first sealing ring 321, so as to reduce the dislocation and deformation of the first sealing ring 321 and further improve the water locking effect of the first sealing ring 321.

[0049] Please refer to Figure 5, further, in some embodiments, the first sealing part 32 further comprises a first water stop 322 fixed on the first sliding part 31, protruding from the outer side of the first sliding part 31, located on the side of the first sealing ring 321 away from the first sealing table 34, and the outer diameter of the first water stop 322 is greater than the inner diameter of the first sealing table 34 and less than the inner diameter of the inner wall of the filter core flow channel 11. The first reset part 33 is located on the side of the first mounting table 34 away from the outside of the filter core flow channel 11, one end of the first reset part 33 is fixed on the first water stop 322, and the other end of the first reset part 33 is fixed on the inner wall of the filter core flow channel 11. The elastic force of the first reset part 33 makes the first sealing ring 321 abut against the first water stop 322 and the first sealing table 34. The second sealing part 42 comprises a second sealing ring 421 and a second water stop 422. The second sealing ring 421 is fixed on the second sliding part 41 or the second sealing table 34, and the outer diameter of the second sealing ring 421 is greater than the inner diameter of the second sealing table 44. The second water stop 422 is fixed on the second sliding part 41, and the outer diameter of the second water stop 422 is greater than the inner diameter of the second sealing table 44 and less than the inner diameter of the inner wall of the base flow channel 21. The second reset part 43 is located on the side of the mounting table away from the outside of the base flow channel 21, one end of the second reset part 43 is fixed on the inner wall of the base flow channel 21, and the other end of the second reset part 43 is fixed on the second water stop 422. The elastic force of the second reset part 43 makes the second sealing ring 421 abut against the second water stop 422 and the second sealing table 44.

[0050] In some embodiments, the structure of the second water locking assembly 40 is the same as or similar to that of the first water locking assembly 30. Taking the first water locking assembly 30 as an example, the first sealing ring 321 of the first water locking assembly 30 is fixed on the first sealing table 34, the first water stop 322 is located on the side of the first sealing ring 321 away from the first sealing table 34, and the elastic force of the first reset part 33 pushes the first sliding part 31 to slide outwardly to the flow channel, so that the first water stop 322 abuts against the first sealing ring 321. The first sealing ring 321, the first sliding part 31 and the first water stop 322 are independent of each other and do not interfere with each other, so that the sealing of the first sealing ring 321 is not affected by the deformation and movement of the first sliding part 31, thereby preventing the sealing of the first sealing ring 321 from being invalid.

[0051] As an example, the first sealing ring 321 is fixed on the first sliding member 31, the first water stop 322 abuts against one side of the first sealing ring 321 away from the first sealing platform 34, and the elastic force of the first reset member 33 pushes the first sliding member 31 to slide out of the flow channel, so that the first water stop 322 abuts the first sealing ring 321 against the first sealing platform 34. Preferably, the outer diameter of the first water stop 322 is greater than the outer diameter of the first sealing ring 321. When the filter element 10 and the base 20 are assembled, the port of the filter element flow channel 11 and the port of the base flow channel 21 are inserted together, the first sliding member 31 in the filter element flow channel 11 cooperates with the second sliding member 41 in the base flow channel 21, and the first reset member 33 in the filter element flow channel 11 and the second reset member 43 in the base flow channel 21 are compressed together, the first sealing ring 321 and the first sealing platform 34 are separated, the second sealing ring 421 and the second sealing platform 44 are separated, and water flow is achieved; when the filter element 10 and the base 20 are disassembled, the first reset member 33 in the flow channel pushes the first sliding member 31 to slide towards the outside of the flow channel, the elastic force of the first reset member 33 makes the first water stop 322 abut the first sealing ring 321 against the first sealing platform 34, and the elastic force of the second reset member 43 makes the second water stop 422 abut the second sealing ring 421 against the second sealing platform 44, so that the filter element 10 and the base 20 are locked. The first sealing ring 321 is arranged on the first sliding member 31, which helps to increase the difference between the inner diameter of the first sealing platform 34 and the inner diameter of the filter element flow channel 11, thereby reducing the outer diameter of the first water stop 322, increasing the space between the first water stop 322 and the inner wall of the filter element flow channel 11, improving water flow, further improving the filtering efficiency of the filter element 10, and enabling the user to drink pure water faster.

[0052] In some embodiments, the end of the first water stop 322 away from the first sliding member 31 is provided with a protruding portion, and the first reset member 33 is sleeved outside the protruding portion, further increasing the stability of the operation of the first reset member 33 and reducing the situation of the first sliding member 31 moving obliquely.

[0053] Further, the first sealing platform 34 is provided with a first inclined surface on the side facing the first sealing ring 321, the first inclined surface is inclined towards the first sliding member 31 along the direction from the inside to the outside of the filter element flow channel 11; the second sealing platform 44 is provided with a second inclined surface on the side facing the second sealing ring 421, the second inclined surface is inclined towards the second sliding member 41 along the direction from the inside to the outside of the base flow channel 21; when the filter element 10 and the base 20 are separated, the first inclined surface and the first water stop 322 jointly extrude the corresponding first sealing ring 321, and the second inclined surface and the second water stop 422 jointly extrude the corresponding second sealing ring 421. By arranging the inclined surface, the contact area between the sealing platform and the sealing ring is increased, the deformation and displacement of the sealing ring are avoided, and the water locking effect of the sealing ring is improved.

[0054] Further, in some embodiments, the first sliding member 31 has an outer diameter slightly smaller than the inner diameter of the first mounting platform, and a first water passage 311 is formed at one end of the first sliding member 31 away from the first water stop platform 322, and a plurality of first through holes 312 are formed in the side wall of the first sliding member 31, the first water passage 311 and the first through holes 312 are in communication to form a filter core water passage, the second sliding member 41 has an outer diameter slightly smaller than the inner diameter of the first mounting platform, and a second water passage 411 is formed at one end of the second sliding member 41 away from the second water stop platform 422, and a plurality of second through holes 412 are formed in the side wall of the second sliding member 41, the second water passage 411 and the second through holes 412 are in communication to form a base water passage. When assembling the filter core 10 and the base 20, the first sliding member 31 in the filter core flow channel 11 abuts against the second sliding member 41 in the base flow channel 21, and compresses the first return member 33 in the filter core flow channel 11 and the second return member 43 in the base flow channel 21 together, so that the first sealing ring 321 is separated from the first mounting platform 34 or the first water stop platform 322, the second sealing ring 421 is separated from the second mounting platform 44 or the second water stop platform 422, and the through holes 312 at least partially protrude from the mounting platform or the side of the sealing ring 321 towards the water stop platform 322, thereby guiding the filter core flow channel 11 and the base flow channel 21; when disassembling the filter core 10 and the base 20, the return member 33 in the flow channel pushes the sliding member 31 to slide towards the outside of the flow channel, and the elastic force of the return member 33 makes the sealing ring 321 abut against the sealing platform 34 or the water stop platform 322 to achieve water locking. By providing the water passage, the water inlet and outlet efficiency of the filter core 10 is improved, the water passes through the inside of the sliding member 31, and the deformation and movement skew of the sliding member 31 in the flow channel is reduced.

[0055] Please refer to Figure 4 In some embodiments, the first return member 33 is arranged on the side of the first sealing platform 34 away from the outside of the filter core flow channel 11, one end of the first return member 33 abuts against or is fixed to the first sliding member 31, and the other end abuts against the inner wall of the filter core flow channel 11.

[0056] Please refer to Figure 5 In some embodiments, the first return member 33 is arranged on the side of the first sealing platform 34 towards the outside of the filter core flow channel 11, the first sliding member 31 extends in the direction of the inner wall of the flow channel to form a mounting structure at one end away from the sealing ring, one end of the first return member 33 abuts against the mounting structure of the first sliding member 31, and the other end abuts against the first mounting platform 34 of the inner wall of the filter core flow channel 11.

[0057] Further, in some embodiments, the outer diameter of the first sliding member 31 in the filter core flow channel 11 is equal to that of the second sliding member 41 in the base flow channel 21, avoiding the engagement of one sliding member with the other sliding member. In some embodiments, the outer diameter of one sliding member is greater than that of the other sliding member, and the water passage of the sliding member with the greater outer diameter is provided with a limiting structure, avoiding the entry of the other sliding member into the sliding member through the water passage, thereby blocking the through hole of the sliding member and affecting the water flow of the water passage. In the present embodiment, the inner diameter of the first sliding member is greater than the outer diameter of the second sliding member 41, and the water passage of the first sliding member 31 is provided with a limiting structure, which is preferably a partition plate 313.

[0058] Preferably, when the filter core 10 and the base 20 are assembled together, the distance between the first mounting platform 34 of the filter core 10 and the second mounting platform 44 of the base 20 is less than the distance between the bottom end of the first through hole 312 of the first sliding member 31 in the filter core flow channel 11 and the top end of the through hole 412 of the second sliding member 41 in the base flow channel 21.

[0059] Please refer to Figures 4-6 Further, in some embodiments, the filter core flow channel 11 and / or the base flow channel 21 is provided with a mounting portion in communication with the outside, the mounting portion having a first flow channel in communication with the outside and a second flow channel in communication with the filter core flow channel 11 and / or the base flow channel 21, the inner diameter of the second flow channel being greater than that of the first flow channel, and the connection between the first flow channel and the second flow channel forming a sealing platform 34. As an example, the first sliding member 31 is slidingly arranged in the first flow channel, the first sealing portion 32 and the end of the first sliding member 31 to which the first sealing portion 32 is fixed are located in the second flow channel, and the outer diameter of the first sealing portion 32 is greater than the inner diameter of the first flow channel, the first return member 33 is arranged in the second flow channel, one end of the first return member 33 is fixedly connected to the end of the second flow channel away from the first sliding member 31, and the other end of the first return member 33 is fixedly connected to the first sliding member 31 or the first sealing portion 32 located in the second flow channel. In an embodiment, the mounting portion is a stepped hole, and the connection between the first flow channel and the second flow channel forms a stepped surface.

[0060] Please refer to Figures 6-9 Further, the first end of the filter core 10 is provided with a plug-in portion, the plug-in portion is fixedly connected with the first housing 12, the first housing 12 is provided with a first shaft hole 13 corresponding to the filter core flow channel 11, a second housing 14 is arranged between the first housing 12 and the first end of the filter core 10, the second housing 14 is provided with a plurality of second shaft holes 15, one end of each second shaft hole 15 is arranged outside the first shaft hole 13, and the other end of each second shaft hole 15 is arranged outside the port of the filter core flow channel 11, so as to communicate the first shaft hole 13 and the filter core flow channel 11. The end of each second shaft hole 15 close to the filter core flow channel 11 is provided with a limiting portion, and the port of the filter core flow channel 11 abuts against the limiting portion. The end of each second shaft hole 15 close to the first shaft hole 13 is provided with a mounting platform. Further, a sealing member is arranged on the mating surface of the first shaft hole 13 and the second shaft hole 15, and the sealing member is preferably an O-ring.

[0061] Further, the first sliding member 31 is arranged inside the first shaft hole 13, protrudes from the first shaft hole 13 towards one end of the second shaft hole 15, and is provided with a first sealing part 32, the outer diameter of the first sealing part 32 is greater than the inner diameter of the first shaft hole 13, the first reset member 33 is arranged inside the second shaft hole 15, one end is fixedly connected with the mounting table of the second shaft hole 15, and one end is fixedly connected with the first sealing part 32. The first sealing part 32 comprises a first water stop table 322 and a first sealing ring 321, preferably, the outer diameter of the first water stop table 322 is greater than the outer diameter of the first sealing ring 321, the first reset member 33 is connected with the side of the first water stop table 322 away from the first shaft hole 13, and the elastic force of the first reset member 33 causes the first sealing part 32 to abut against the top of the first shaft hole 13, thereby sealing the first shaft hole 13 to achieve water locking. In some embodiments, the mounting table of the second shaft hole 15 can serve as a limiting part, one end abuts against the port of the filter core flow channel 11, and one end is fixedly connected with the first reset member 33.

[0062] Further, in some embodiments, the base 20 is provided with a plug-in interface corresponding to the plug-in part, the base 20 comprises a bottom shell 22 and a middle shell 23, the bottom shell 22 is provided with a port 221 to communicate with the external waterway. The middle shell 23 is provided with an adapter 231 to communicate the filter core flow channel 11 with the port 221, the adapter 231 comprises a first joint part 232 connected with the port 221 of the bottom shell 21 in a plug-in manner, and a second joint part 233 connected with the first shaft hole 13 of the filter core 10 in a plug-in manner, the first joint part 232 and the second joint part 233 are communicated, and a sealing member is arranged on the matching surface of the joint part and the port 221 to ensure the sealing property of the middle shell 23 and the bottom shell 22, so that water leakage is less likely to occur. The middle shell 23 is fixed on the bottom shell 22 by a locking member, and the inner wall of the port 221 is provided with a mounting table. Preferably, the inner diameter of the first joint part 232 is greater than the inner diameters of the waterway 234 and the second joint part 233, and a second sealing table 44 is formed at the connection between the first joint part 232 and the second joint part 233.

[0063] Further, the second sliding member 41 is arranged inside the second joint part 233, protrudes from the second joint part 233 towards one end of the bottom shell 22, and is provided with a second sealing part 42, the outer diameter of the second sealing part 42 is greater than the inner diameter of the second joint part 233, and the second reset member 43 is arranged inside the port 221 of the bottom shell 22, one end is fixedly connected with the mounting table of the port 221, and one end is fixedly connected with the second sealing part 42. The second sealing part 42 comprises a second water stop table 422 and a second sealing ring 421, preferably, the outer diameter of the second water stop table 422 is greater than the outer diameter of the second sealing ring 421, the second reset member 43 is connected with the side of the second water stop table 422 away from the first joint part 232, and the elastic force of the second reset member 43 causes the second sealing part 42 to abut against the second sealing table 34, thereby sealing the first joint part 232 to achieve water locking of the base 20.

[0064] Further, in some embodiments, the adapter 231 is provided with a water channel 234 connecting the first joint part 232 and the second joint part 233, the inner diameter of the water channel 234 is equal to the inner diameter of the port 221, and is smaller than the inner diameter of the first joint part 232 and larger than the inner diameter of the second joint part 233, a sealing member is arranged at the joint between the water channel 234 and the first joint part 232 to seal the water channel 234 and the port 221, and the joint between the water channel 234 and the second joint part 233 forms a second sealing platform 44, the elastic force of the second reset member 43 makes the second sealing part 42 abut against the second sealing platform 44 to block the water channel to achieve water locking.

[0065] In some embodiments, the inner diameter of the first sliding member 31 is larger than the inner diameter of the second sliding member 41, and a partition plate 313 is arranged inside the first sliding member 31 or the water passage 311 to block the second sliding member 41 from being inserted into the first sliding member 31.

[0066] Please refer to Figures 10-11 Further, in some embodiments, the base 20 is provided with a water inlet channel, a drainage channel and a pure water channel, the filter core 10 is provided with a filter core water inlet channel corresponding to the water inlet channel, a filter core drainage channel corresponding to the drainage channel and a filter core pure water channel corresponding to the pure water channel, and each channel is provided with the first water locking assembly 30 or the second water locking assembly 40.

[0067] In some embodiments, the first reset member 33 and / or the second sliding member 43 is a conical spring, one end of the conical spring with a small bottom surface is connected with the sliding member, and the other end with a large bottom surface is fixedly connected with the mounting platform in the second shaft hole 15 or the port 211. The conical spring has higher stability and reliability, and is not easy to fail or be damaged when bearing load. Compared with a conventional spiral spring, the conical spring can achieve higher load and displacement.

[0068] In some embodiments, the first sliding member 31 and / or the second sliding member 41 is made of wear-resistant material, and the first sealing ring 321 and / or the second sealing ring 421 is made of high-elasticity rubber material to ensure the sealing effect.

[0069] The utility model also provides a water purifier, the water purifier includes above-mentioned two -way water locking formula filter core installation structure. The water purifier connects external water source, and sets up wastewater waterway and pure water waterway, the water inlet channel, drainage channel and pure water channel of base 20 are communicated with external water source, wastewater waterway, pure water waterway through water inlet, drainage, pure water mouth respectively, the wastewater that filter core 10 filters obtains can be discharged through wastewater waterway, and pure water can be taken through pure water waterway.

[0070] The two-way water locking formula filter core installation structure in the embodiment can have the same structure and achieve the same effect as the two-way water locking formula filter core installation structure in the above-mentioned embodiments, and the embodiment will not be repeated.

[0071] The working principle of the bidirectional water-locking type filter core mounting structure is as follows:

[0072] When the filter core 10 and the base 20 are mounted, the plug-in part of the filter core 10 is plugged together with the plug-in port of the base 20, the first shaft hole 13 of the filter core 10 is plugged together with the second joint part 233 of the base 20, the first sliding part 31 in the first shaft hole 13 and the second sliding part 41 in the second joint part 233 abut together and slide towards the inside of the filter core 10 and the inside of the base 20 respectively, the first return part 33 and the second return part 43 are compressed, the first sealing part 32 is separated from the first shaft hole 13, the second sealing part 42 is separated from the second joint part 233, and the water flow channel of the base and the water flow channel of the filter core are communicated. The external water source of the bidirectional water-locking type filter core mounting structure enters the water inlet flow channel of the filter core through the water inlet flow channel of the base 20, the water flow channel of the base and the water flow channel of the filter core in sequence, is filtered through the filter core 10, and the obtained waste water and pure water enter the filter core water outlet flow channel and the filter core pure water flow channel respectively. The waste water in the filter core water outlet flow channel enters the water outlet flow channel of the base 20 through the water flow channel of the filter core and the water flow channel of the base in sequence. The pure water in the filter core pure water flow channel enters the pure water flow channel of the base 20 through the water flow channel of the filter core and the water flow channel of the base in sequence.

[0073] When the filter core 10 and the base 20 are dismounted, the first sliding part 31 in the first shaft hole 13 is separated from the second sliding part 41 in the second joint part 233, the first return part 33 pushes the first sliding part 31 to move towards the outside of the filter core 10, the first sealing part 32 abuts against the top of the first shaft hole 13, the first shaft hole 13 is sealed to realize water locking of the filter core 10; at the same time, the second return part 43 pushes the second sliding part 41 to move towards the outside of the base 20, the second sealing part 42 abuts against the second sealing table 44 of the adapter 23, the adapter 23 is sealed to realize water locking of the base 20.

[0074] Compared with the prior art, the bidirectional water-locking type filter core mounting structure has the following advantages:

[0075] (1) By arranging the water-locking assembly in each flow channel of the filter core, water remaining in the filter core cavity is prevented from flowing out during dismounting of the filter core from the base;

[0076] (2) By arranging the water-locking assembly in each flow channel of the base, the filter core can be directly dismounted without closing the external water valve, and water remaining in the flow channel of the base is prevented from flowing out;

[0077] (3) By arranging the sealing table as an inclined surface, the contact area of the sealing table with the sealing member is increased, and the sealing effect is enhanced;

[0078] (4) By arranging the recess in the sliding part to accommodate the sealing ring, the stability of the sealing ring is increased, and displacement of the sealing ring is avoided;

[0079] (5) by setting the water stop abutting sealing ring, make sealing ring in sealing station and water stop station jointly under the action of deformation, enhance the sealing effect, at the same time avoid water from the gap between sealing ring and sliding member, further enhance the sealing effect;

[0080] (6) by setting the reset member is a conical spring, improve the stability of the water locking assembly, make the sliding member as far as possible along the direction parallel to the flow channel movement, and do not occur skew, deformation, etc.

[0081] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these changes and modifications.

Claims

1. A bidirectional water-locking filter cartridge installation structure, characterized in that, include: The filter element is provided with a filter element flow channel, and a first water-locking component is provided in the filter element flow channel; The base has a base channel corresponding to the filter element channel, and a second water-locking component is provided in the base channel. When the filter element and the base are combined in a specific way, the first water-locking component and the second water-locking component abut against each other, and the first water-locking component moves into the filter element and the second water-locking component moves into the base, thereby opening the filter element flow channel and the base flow channel; when the filter element and the base are separated, the first water-locking component and the second water-locking component return to their initial positions respectively, thereby closing the filter element flow channel and the base flow channel.

2. The bidirectional water-locking filter element installation structure according to claim 1, characterized in that: Both the first and second water-locking components are provided with a sliding member and a resetting member. The sliding member is located inside the flow channel and has a sealing part. The sealing part has a gap with the inner wall of the flow channel, and the inner wall of the flow channel has a sealing platform that cooperates with the sealing part. When the filter element and the base are combined in a specific way, the sliding member compresses the resetting member, causing the sealing part to separate from the sealing platform. When the filter element and the base are separated, the restoring force of the resetting member causes the sealing part to abut against the sealing platform.

3. The bidirectional water-locking filter element installation structure according to claim 2, characterized in that: The sealing part includes a sealing ring, which is fixed to the outside of the sliding member, or the sealing ring is fixed to the side of the sealing platform facing the flow channel, and the outer diameter of the sealing ring is larger than the inner diameter of the sealing platform; when the filter element and the base are separated, the sealing ring abuts against the sealing platform.

4. The bidirectional water-locking filter element installation structure according to claim 3, characterized in that: The sealing part includes a water-stop platform, which is fixed on the outside of the sliding member and located on the side of the sealing ring away from the sealing platform. The outer diameter of the water-stop platform is larger than the inner diameter of the sealing ring and smaller than the inner diameter of the flow channel. When the filter element and the base are separated, the water-stop platform abuts against the sealing ring.

5. The bidirectional water-locking filter element installation structure according to claim 3, characterized in that: When the sealing ring is fixed to the outside of the sliding member, the sealing platform has an inclined surface on the side facing the sealing ring. The inclined surface is inclined from the inside to the outside along the flow channel and is closer to the sliding member. When the filter element and the base are separated, the inclined surface abuts against the sealing ring.

6. A bidirectional water-locking filter element installation structure according to any one of claims 2-5, characterized in that: The sliding member has a water inlet at the end facing out of the flow channel, and several through holes are opened on the side wall. The water inlet and the through holes are connected to form a water passage. When the filter element and the base are combined in a specific way, the through holes at least partially protrude from the side of the sealing platform facing inward of the flow channel.

7. The bidirectional water-locking filter element installation structure according to claim 6, characterized in that: The reset member is located on the side of the sealing platform away from the flow channel, with one end abutting against the sealing part of the sliding member and the other end abutting against the inner wall of the flow channel; or, the reset member is located on the side of the sealing platform facing the flow channel, with one end abutting against the sliding member and the other end abutting against the sealing platform.

8. The bidirectional water-locking filter element installation structure according to claim 7, characterized in that: The reset component is a conical spring, with the smaller end of the conical spring fixed to the sliding component and the larger end fixed to the inner wall of the flow channel or the sealing platform.

9. The bidirectional water-locking filter element installation structure according to claim 8, characterized in that: The outer diameters of the sliding members of the first and second water-locking components are equal; or, the outer diameters of the sliding members of the first and second water-locking components are unequal, and the water outlet of the sliding member with the larger outer diameter is provided with a limiting structure that abuts against the other sliding member.

10. A water purifier, characterized in that, include: The bidirectional water-locking filter cartridge installation structure according to any one of claims 1-9.

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