Connecting seat assembly, filter element device and water purification equipment

Abstract

The utility model discloses a joint seat assembly, filter element device and water purification equipment, and relates to the technical field of water purification equipment, the joint seat assembly comprises a joint seat main body, two valve rods and two elastic pieces, two cavities are arranged in the joint seat main body, each cavity is provided with a first chamber, a second chamber and a communication port, the first chamber is communicated with the second chamber through the communication port, and the second chamber is communicated with the second chamber through the communication port. The first chamber is provided with a water inlet / outlet; the valve rod is provided with a main body structure and an extending part which are connected, the main body structure is arranged in the first cavity, and the extending part penetrates through the communicating opening and extends into the second cavity; the two elastic pieces are correspondingly arranged in the two first cavities; the elastic piece is used for applying acting force in the first direction to the main body structure so that the main body structure can abut against and be in sealing fit with the communicating opening; two tubular structures are arranged on the filter element assembly; and after the two tubular structures correspondingly extend into the two second cavities in the second direction and reach preset positions, the extension parts are pressed by the tubular structures and move in the opposite direction of the first direction, so that the main body structure is separated from the communication opening.

Description

Technical Field

[0001] This utility model relates to the field of water purification equipment technology, and in particular to a connector assembly, a filter element device, and a water purification device. Background Technology

[0002] Water purification equipment typically includes filter cartridges. These cartridges filter external water sources, such as tap water, to produce filtered water that meets requirements for direct drinking, removal of impurities, and improvement of taste. Filter cartridges are usually supported and secured using mounting brackets. These brackets, typically designed with inlet and outlet ports, connect to the water supply pipe and the filtered water output pipe, allowing for the supply of water to and the reception of filtered water from the filter cartridge.

[0003] However, when the filter cartridge is not installed with the connector, or during the process of removing the filter cartridge from the connector, the current connector cannot stop the water flow at the inlet and outlet, resulting in water waste. To avoid stopping the water flow at the inlet and outlet, the water supply pipe must be disconnected when the filter cartridge is removed or not installed, and then reconnected after the filter cartridge and connector are installed, which increases the amount of work for the user.

[0004] Therefore, there is an urgent need for a new type of connector assembly to solve the problem that the connector assembly cannot automatically stop water flow when the filter cartridge is disassembled or not installed. Utility Model Content

[0005] The main purpose of this utility model is to propose a connector assembly, a filter element device, and a water purification device, which aims to solve the problem that the connector assembly cannot automatically stop water flow when the filter element device is disassembled or not installed.

[0006] To achieve the above objectives, the present invention proposes a connector assembly for use with a filter element assembly. The connector assembly includes a connector body, two valve stems, and two elastic elements. The connector body has two independent cavities, each having a first chamber, a second chamber, and a connecting port. The first chamber is connected to the second chamber through the connecting port and has inlet and outlet ports. The valve stems have a connected main structure and an extension. The main structure is located in the first chamber, and the extension passes through the connecting port and extends into the second chamber. The two elastic elements are correspondingly located in the two first chambers. The elastic elements apply a force along a first direction to the main structure, causing the main structure to abut against the connecting port and form a sealing fit. The filter element assembly has two tubular structures. After the two tubular structures extend into the two second chambers along a second direction and reach a preset position, the extension is pressed by the tubular structures and moves in the opposite direction along the first direction, causing the main structure to separate from the connecting port.

[0007] In one embodiment, a notch is provided on the side wall of the first chamber facing away from the second chamber; the receiving assembly also includes a cover plate assembly, which is detachably connected to the two notches and forms a sealing fit; one side of the elastic member is connected to the cover plate assembly, and the other side of the elastic member abuts against the main structure.

[0008] In one embodiment, the main structure includes a rod and an annular protrusion. One end of the rod facing the second chamber is connected to the annular protrusion, and the other end of the annular protrusion facing the second chamber is connected to the protrusion. The outer diameter of the annular protrusion is larger than the diameter of the communication opening. The elastic element is annular and is sleeved on the outer periphery of the rod. The end of the elastic element facing the cover plate assembly is connected to the cover plate assembly. The end of the elastic element facing the second chamber presses against the annular protrusion so that the annular protrusion abuts against the communication opening and forms a sealing fit.

[0009] In one embodiment, an annular groove is provided on the outer periphery of the annular protrusion, and a sealing ring is provided in the annular groove. The annular protrusion is sealed and engaged with the communication port through the sealing ring.

[0010] In one embodiment, the cover plate assembly is provided with two guide structures extending along a first direction, the two guide structures correspondingly extending into two first chambers; the guide structures are tubular and are sleeved on the outer periphery of the rod; an elastic member is sleeved on the outer periphery of the guide structures and the rod, and one end of the elastic member facing the cover plate assembly is connected to the guide structure.

[0011] In one embodiment, the tubular structure includes a fitting and a mating part. One end of the fitting is connected to the interior of the filter element assembly, and the edge of the other end of the fitting is connected to the mating part. The mating part is provided with an inclined structure on the side facing the protrusion. The inclined structure is inclined downward in the opposite direction of the first direction. The inclined structure is used to move in the second direction and press against the protrusion, so that the protrusion moves in the opposite direction of the first direction. There is an angle between the first direction and the second direction.

[0012] In one embodiment, the outer surface of the receiving body is provided with a connecting structure for connecting to the housing of the filter element assembly.

[0013] In one embodiment, the cover plate assembly is further provided with two sleeves extending along a first direction, the sleeves being located outside the guide structure; a notch is fitted around the outer periphery of the sleeves, the notch and the sleeves forming a sealing fit.

[0014] This utility model also proposes a filter element device, including a filter element assembly and the aforementioned connector assembly, wherein the connector assembly is installed in conjunction with the filter element assembly.

[0015] This utility model also proposes a water purification device, including the above-mentioned filter cartridge device.

[0016] The technical solution of this utility model employs a connector assembly for installation with a filter element assembly. The connector assembly includes a connector body, two valve stems, and two elastic elements. The connector body has two independent cavities, each with a first chamber, a second chamber, and a connecting port. The first chamber is connected to the second chamber via the connecting port and has inlet and outlet ports. The valve stems have a connected main structure and an extension. The main structure is located in the first chamber, and the extension passes through the connecting port and extends into the second chamber. The two elastic elements are correspondingly located in the two first chambers. The elastic elements apply a force along a first direction to the main structure, causing the main structure to abut against the connecting port and form a sealing fit. The filter element assembly has two tubular structures. After the two tubular structures extend into the two second chambers along a second direction and reach a preset position, the extension is pressed by the tubular structures and moves in the opposite direction along the first direction, causing the main structure to separate from the connecting port.

[0017] The technical solution of this utility model involves providing two independent cavities within the main body of the receiving seat. One cavity serves as a water supply cavity, supplying external water to the filter element assembly, while the other cavity serves as a filtration cavity, receiving filtered water from the filter element assembly. This creates a separation between the unfiltered external water source and the filtered water, preventing contamination of the filtered water by the external water source. Furthermore, by having a first chamber, a second chamber, and a connecting port within each cavity, and by placing the main structure of the elastic element and valve stem within the first chamber, the elastic element applies a force along a first direction to the main structure, causing the main structure to abut against the connecting port and form a sealing fit. This ensures that even when the filter element assembly is disassembled or not installed, the elastic element can maintain the seal between the main structure and the connecting port. The sealing fit between the opening and the filter element achieves an automatic water-stopping effect. Furthermore, by allowing the protruding part connected to the main structure to pass through the connecting port and extend into the second chamber, and by providing two tubular structures on the filter element assembly, after the two tubular structures extend into the two second chambers along the second direction and reach their preset positions (i.e., after the filter element assembly and the receiving body are assembled), the protruding part is pressed against by the tubular structures and moves in the opposite direction along the first direction, causing the main structure to separate from the connecting port. This releases the sealing fit between the main structure and the connecting port, restoring communication between the first and second chambers. The communication between the chamber and the tubular structures enables the water supply chamber to supply water to one of the tubular structures, and the filtration chamber to receive filtered water from the other tubular structure.

[0018] Overall, by using this connector assembly, when the filter element assembly is disassembled or not installed, the elastic element causes the valve stem to abut against the connection port and form a sealing fit, achieving the effect of automatic water stoppage; after the filter element assembly and the connector body are assembled in place, the tubular structure presses against the protruding part to separate the main structure from the connection port, thereby restoring the connection between the first chamber and the second chamber, achieving the effect of automatically connecting the pipeline after the filter element assembly is assembled in place. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 A cross-sectional view of an embodiment of the connector assembly provided by this utility model;

[0021] Figure 2 A schematic diagram of another embodiment of the connector assembly provided by this utility model;

[0022] Figure 3 This is a cross-sectional view of another embodiment of the connector assembly provided by this utility model.

[0023] Explanation of icon numbers:

[0024] 100. Connector assembly; 1. Connector body; 11. Cavity; 111. First chamber; 112. Second chamber; 113. Connecting port; 114. Inlet / outlet; 12. Connecting structure; 2. Valve stem; 21. Main structure; 211. Rod; 212. Annular protrusion; 213. Sealing ring; 22. Protrusion; 3. Elastic element; 4. Cover plate assembly; 41. Guide structure; 42. Sleeve pipe;

[0025] 500, Filter element assembly; 510, Tubular structure; 511, Pipe fitting; 512, Fitting part; 513, Inclined structure.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Water purification equipment typically includes filter cartridges. These cartridges filter external water sources, such as tap water, to produce filtered water that meets requirements for direct drinking, removal of impurities, and improvement of taste. Filter cartridges are usually supported and secured using mounting brackets. These brackets, typically designed with inlet and outlet ports, connect to the water supply pipe and the filtered water output pipe, allowing for the supply of water to and the reception of filtered water from the filter cartridge.

[0031] However, when the filter cartridge is not installed with the connector, or during the process of removing the filter cartridge from the connector, the current connector cannot stop the water flow at the inlet and outlet, resulting in water waste. To avoid stopping the water flow at the inlet and outlet, the water supply pipe must be disconnected when the filter cartridge is removed or not installed, and then reconnected after the filter cartridge and connector are installed, which increases the amount of work for the user.

[0032] Therefore, there is an urgent need for a new type of connector assembly to solve the problem that the connector assembly cannot automatically stop water flow when the filter cartridge is disassembled or not installed.

[0033] To solve the above problems, this utility model proposes a connector assembly.

[0034] Please see Figures 1 to 3In one embodiment of this utility model, the connector assembly 100 is used to cooperate with the filter element assembly 500 for installation. The connector assembly 100 includes a connector body 1, two valve stems 2, and two elastic members 3. The connector body 1 has two independent cavities 11. Each cavity 11 has a first chamber 111, a second chamber 112, and a connecting port 113. The first chamber 111 is connected to the second chamber 112 through the connecting port 113. The first chamber 111 has an inlet and outlet port 114. The valve stems 2 have a connected main body structure 21 and an extension 22. The main body structure 21 is located in the first chamber 111, and the extension 22 is located in the second chamber 112. 22 passes through the connecting port 113 and extends into the second chamber 112; two elastic elements 3 are correspondingly disposed in the two first chambers 111; the elastic elements 3 are used to apply a force along the first direction to the main body structure 21 so that the main body structure 21 abuts against the connecting port 113 and forms a sealing fit; the filter element assembly 500 is provided with two tubular structures 510; after the two tubular structures 510 extend into the two second chambers 112 in the second direction and reach the preset position, the protruding part 22 is pressed by the tubular structure 510 and moves in the opposite direction along the first direction so that the main body structure 21 separates from the connecting port 113.

[0035] The technical solution of this utility model is achieved by providing two independent cavities 11 within the main body 1 of the receiving seat. One cavity 11 serves as a water supply cavity to provide external water to the filter element assembly 500, while the other cavity 11 serves as a water filtration cavity to receive filtered water from the filter element assembly 500. This creates a separation between the unfiltered external water source and the filtered water, preventing contamination of the filtered water by the external water source. Furthermore, by having the cavity 11 have a first chamber 111, a second chamber 112, and a connecting port 113, and by placing the main structure 21 of the elastic member 3 and the valve stem 2 within the first chamber 111, the elastic member 3 applies a force along a first direction to the main structure 21, causing the main structure 21 to abut against the connecting port 113 and form a sealing fit. This ensures that even when the filter element assembly 500 is disassembled or not installed, the elastic member 3 can maintain a sealing fit between the main structure 21 and the connecting port 113. This achieves an automatic water-stopping effect. Furthermore, by allowing the protrusion 22 connected to the main structure 21 to pass through the communication port 113 and extend into the second chamber 112, and by providing two tubular structures 510 on the filter element assembly 500, after the two tubular structures 510 extend into the two second chambers 112 in the second direction and reach the preset position, that is, after the filter element assembly 500 and the receiving body 1 are assembled in place, the protrusion 22 is pressed by the tubular structures 510 and moves in the opposite direction in the first direction, so that the main structure 21 is separated from the communication port 113, the sealing fit between the main structure 21 and the communication port 113 is released, the first chamber 111 and the second chamber 112 are restored to communication, and the communication between the cavity 11 and the tubular structure 510 realizes the effect of the water supply chamber supplying water to one of the tubular structures 510 and the water filtration chamber receiving filtered water from the other tubular structure 510.

[0036] Overall, by using this connector assembly 100, when the filter element assembly 500 is disassembled or not installed, the elastic element 3 causes the valve stem 2 to abut against the connection port 113 and form a sealing fit, thus achieving the effect of automatic water stoppage; after the filter element assembly 500 and the connector body 1 are assembled in place, the tubular structure 510 presses against the protruding part 22 to separate the main body structure 21 from the connection port 113, thereby restoring the connection between the first chamber 111 and the second chamber 112, thus achieving the effect of automatically connecting the pipeline after the filter element assembly 500 is assembled in place.

[0037] It should be noted that the tubular structure 510 is internally connected to the filter element assembly 500 to supply water to the filter element body inside the filter element assembly 500 and to receive filtered water from the filter element body. As an optional implementation, the filter element body can be a reverse osmosis membrane filter (RO membrane filter). A reverse osmosis membrane filter allows only water molecules and a small amount of mineral ions to pass through its membrane, while impurities such as bacteria, viruses, heavy metal ions, and organic matter are retained by the membrane. This achieves a filtering effect on bacteria, viruses, heavy metal ions, and organic matter, and also improves the taste and odor of the water. In addition, the filter element itself can also be a composite filter element, which can include a pre-filter and a post-filter. The pre-filter is responsible for the initial filtration of water sources such as tap water, removing large particulate impurities such as sediment, colloids, and rust, resulting in pre-filtered water. Then, the post-filter is used to further filter the pre-filtered water, adsorbing harmful substances such as discoloration, odor, and residual chlorine in the reverse osmosis pure water, improving the taste of the water, resulting in the final post-filtered water. Of course, pre-filters, reverse osmosis membrane filter elements, and post-filters can also be used in combination. In actual production, the selection of filters and filter membranes can be based on filtration needs and water quality requirements, which will not be elaborated on here.

[0038] To address the problem that components such as the valve stem 2 and the elastic element 3 in the first chamber 111 cannot be replaced after damage, in this embodiment of the invention, a notch is provided on the side wall of the first chamber 111 facing away from the second chamber 112; the receiving assembly 100 also includes a cover plate assembly 4, which is detachably connected to the two notches and forms a sealing fit; one side of the elastic element 3 is connected to the cover plate assembly 4, and the other side of the elastic element 3 abuts against the main structure 21.

[0039] In the above structure, a notch is provided on the side wall of the first chamber 111 facing away from the second chamber 112. A cover plate assembly 4 is detachably connected to both notches to form a sealing fit. This allows the cover plate assembly 4 to be disassembled after damage to components such as the valve stem 2 and the elastic element 3, so that the valve stem 2 and the elastic element 3 can be removed from the notch and replaced. After replacement, the cover plate assembly 4 can connect to the notch to form a sealing fit, ensuring that the water source only flows through the inlet / outlet 114 of the first chamber 111, preventing water leakage from the notch. As an optional embodiment, the cover plate assembly 4 and / or the notch are provided with a sealing element. The cover plate assembly 4 is sealed to the notch through the sealing element, which can be a sealing ring.

[0040] In an embodiment of this utility model, the main structure 21 includes a rod 211 and an annular protrusion 212. One end of the rod 211 facing the second chamber 112 is connected to the annular protrusion 212, and the other end of the annular protrusion 212 facing the second chamber 112 is connected to the protrusion 22. The outer diameter of the annular protrusion 212 is larger than the diameter of the connecting port 113. The elastic member 3 is annular and is sleeved on the outer periphery of the rod 211. One end of the elastic member 3 facing the cover plate assembly 4 is connected to the cover plate assembly 4. The end of the elastic member 3 facing the second chamber 112 presses against the annular protrusion 212 so that the annular protrusion 212 abuts against the connecting port 113 and forms a sealing fit.

[0041] In the above structure, by including a rod 211 and an annular protrusion 212 in the main structure 21, and making the outer diameter of the annular protrusion 212 larger than the diameter of the connecting opening 113, when the elastic member 3 presses against the annular protrusion 212, the annular protrusion 212 can abut against the connecting opening 113 and prevent the annular protrusion 212 from passing through the connecting opening 113, thus preventing the sealing fit between the annular protrusion 212 and the connecting opening 113 from failing. Furthermore, by having the elastic member 3 sleeved on the outer circumference of the rod 211, and the rod 211 connected to the annular protrusion 212, the elastic member 3 can achieve pressure on the same point of the annular protrusion 212 without needing to be connected to it. This prevents the pressure position between the elastic member 3 and the annular protrusion 212 from changing during the compression and elongation of the elastic member 3, thus preventing the elastic member 3 from being unable to apply force to the annular protrusion 212 and deviating from the first direction. As an optional implementation, the elastic member 3 can be a spring.

[0042] To address the issue of how the annular protrusion 212 can form a sealed fit with the connecting port 113, in this embodiment of the invention, an annular groove is provided on the outer periphery of the annular protrusion 212, and a sealing ring 213 is provided in the annular groove. The annular protrusion 212 is sealed with the connecting port 113 through the sealing ring 213.

[0043] In the above structure, an annular groove is provided on the outer periphery of the annular protrusion 212, and a sealing ring 213 is provided in the annular groove, so that the sealing ring 213 is fixed in the annular groove, preventing the sealing ring 213 from being pushed away from its original position and falling off the annular protrusion 212 during long-term contact with the connecting port 113. The annular protrusion 212 is sealed with the connecting port 113 through the sealing ring 213, thereby ensuring the sealing between the annular protrusion 212 and the connecting port 113, and preventing water from flowing through the gap between the annular protrusion 212 and the connecting port 113 after the annular protrusion 212 and the connecting port 113 are in contact. In one preferred embodiment, the ratio of the height of the portion of the sealing ring 213 protruding from the bottom of the annular groove to the diameter of the sealing ring 213 ranges from 20% to 40%. Within this range, the main body of the sealing ring 213 is located below the top of the annular groove, effectively preventing the sealing ring 213 from coming out of the annular groove. At the same time, 20% to 40% of the sealing ring 213 still protrudes from the top of the annular groove, and this part can fully contact the connecting port 113 to ensure a good sealing effect.

[0044] To address the issue that gaps may exist between the tubular structures 510 and the second chambers 112 after the two tubular structures 510 extend into the two second chambers 112, potentially causing water leakage, in this embodiment of the invention, a sealing element is provided on the outer periphery of the tubular structure 510, and / or a sealing element is provided on the cavity wall of the second chamber 112; the tubular structure 510 is sealed to the second chamber 112 through the sealing element.

[0045] In the above structure, by providing a sealing element in the tubular structure 510 and / or the second chamber 112, the tubular structure 510 can form a sealed fit with the second chamber 112 through the sealing element, thereby improving the sealing degree between the tubular structure 510 and the second chamber 112 and preventing water leakage from the tubular structure 510 and the second chamber 112. As an optional embodiment, the sealing element can be a sealing ring.

[0046] To address the issue of the annular protrusion 212 deviating from the first direction in its movement direction, in this embodiment of the invention, the cover plate assembly 4 is provided with two guide structures 41 extending along the first direction, with the two guide structures 41 correspondingly extending into the two first chambers 111; the guide structure 41 is tubular and is sleeved on the outer periphery of the rod 211; the elastic member 3 is sleeved on the outer periphery of the guide structure 41 and the rod 211, with one end of the elastic member 3 facing the cover plate assembly 4 connected to the guide structure 41.

[0047] In the above structure, by providing two guide structures 41 extending along the first direction on the cover plate assembly 4 and making the guide structures 41 tubular, the guide structures 41 are sleeved on the outer periphery of the rod 211, thereby providing a guiding function for the rod 211, thereby restricting the degree of freedom of movement of the annular protrusion 212, so that the annular protrusion 212 can only move along the first direction and the opposite direction of the first direction, ensuring that the annular protrusion 212 can abut against the communication port 113 and form a sealing fit after moving along the first direction.

[0048] To address the issue of how to achieve the reverse movement of the protruding part 22 along the first direction after the tubular structure 510 presses against it, in this embodiment of the invention, the tubular structure 510 includes a tube 511 and a mating part 512. One end of the tube 511 is connected to the interior of the filter element assembly 500, and the edge of the tube opening at the other end of the tube 511 is connected to the mating part 512. The mating part 512 is provided with an inclined structure 513 on the side facing the protruding part 22. The inclined structure 513 is inclined downward along the reverse direction of the first direction. The inclined structure 513 is used to move along the second direction and press against the protruding part 22, so that the protruding part 22 moves in the reverse direction of the first direction. There is an angle between the first direction and the second direction.

[0049] In the above structure, the pipe end of the fitting 511 is connected to the mating part 512 through the edge of the pipe opening. An inclined structure 513 is provided on the side of the mating part 512 facing the protrusion 22. The inclined structure 513 is inclined downward in the opposite direction of the first direction. After the inclined structure 513 moves in the second direction to press against the protrusion 22, the protrusion 22 is subjected to an inclined force applied by the inclined surface of the inclined structure 513. This inclined force has a first component force in the opposite direction of the first direction and a second component force perpendicular to the first direction and upward. Due to the presence of the guide structure 41, the degree of freedom of the protrusion 22 connected to the rod 211 and the annular protrusion 212 in the upward direction perpendicular to the first direction is restricted. Therefore, under the action of the first component force, the protrusion 22 moves in the opposite direction of the first direction. Thus, by using the inclined structure 513 to move in the second direction and press against the protrusion 22, the protrusion 22 can be moved in the opposite direction of the first direction.

[0050] In an embodiment of this utility model, a connecting structure 12 is provided on the outside of the receiving body 1, and the connecting structure 12 is used to connect with the outer shell of the filter element assembly 500.

[0051] In the above structure, the connecting structure 12 is used to connect the receiving body 1 to the filter element assembly 500. After the filter element assembly 500 and the receiving body 1 are assembled, the connecting structure 12 of the receiving body 1 provides stable support and fixation for the filter element assembly 500. As an optional implementation, the connecting structure 12 may have a through hole, and the outer shell of the filter element assembly may have a threaded hole. A threaded fastener passes through the through hole and engages with the threaded hole, thereby achieving a threaded connection between the connecting structure 12 and the filter element assembly.

[0052] In an embodiment of this utility model, the cover plate assembly 4 is further provided with two sleeves 42 extending along the first direction. The sleeves 42 are located outside the guide structure 41. The notch is sleeved on the outer periphery of the sleeves 42, and the notch and the sleeves 42 form a sealing fit.

[0053] In the above structure, the cover plate assembly 4 has a sleeve 42 extending in the first direction on the outside of the guide structure 41, thereby utilizing the sleeve 42 to engage with the notch. This sleeve engagement connection is convenient to assemble and disassemble, and the connection is reliable, which helps to improve production assembly efficiency. In addition, by forming a sealed fit between the notch and the sleeve 42, water leakage at the connection between the sleeve 42 and the notch is prevented, reducing water waste.

[0054] Please see Figure 3 This utility model also proposes a filter element device, which includes a filter element assembly 500 and a connector assembly 100 as described in the above embodiments. The connector assembly 100 is installed in conjunction with the filter element assembly 500. The specific structure of the connector assembly 100 is as described in the above embodiments. Since this filter element device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0055] This utility model also proposes a water purification device, which includes the filter element device of the above embodiments. The specific structure of the filter element device is the same as that of the above embodiments. Since this water purification device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0056] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A connector assembly, characterized in that, The connector assembly is used for installation with a filter cartridge assembly and includes: The receiving body has two independent cavities. Each cavity has a first chamber, a second chamber, and a connecting port. The first chamber is connected to the second chamber through the connecting port. The first chamber is provided with an inlet and an outlet. Two valve stems, each valve stem having a connected main body structure and an extension portion, the main body structure being disposed in the first chamber, and the extension portion passing through the communication port and extending into the second chamber; Two elastic elements are respectively disposed in the two first cavities; the elastic elements are used to apply a force along a first direction to the main structure so that the main structure abuts against the communication port and forms a sealing fit. The filter assembly has two tubular structures; after the two tubular structures extend into the two second chambers along the second direction and reach the preset position, the protruding part is pressed by the tubular structure and moves in the opposite direction along the first direction, so as to separate the main body structure from the communication port.

2. The connector assembly as described in claim 1, characterized in that, The first chamber has a notch on the side wall facing away from the second chamber; the receiving assembly also includes a cover plate assembly, which is detachably connected to the two notches and forms a sealing fit. One side of the elastic element is connected to the cover plate assembly, and the other side of the elastic element abuts against the main structure.

3. The connector assembly as described in claim 2, characterized in that, The main structure includes a rod and an annular protrusion. One end of the rod facing the second chamber is connected to the annular protrusion, and one end of the annular protrusion facing the second chamber is connected to the protrusion. The outer diameter of the annular protrusion is larger than the diameter of the connecting opening. The elastic element is annular and is sleeved on the outer periphery of the rod. One end of the elastic element facing the cover plate assembly is connected to the cover plate assembly. The end of the elastic element facing the second chamber presses against the annular protrusion so that the annular protrusion abuts against the communication port and forms a sealing fit.

4. The connector assembly as described in claim 3, characterized in that, The annular protrusion has an annular groove on its outer periphery, and a sealing ring is provided in the annular groove. The annular protrusion is sealed to the communication port through the sealing ring.

5. The connector assembly as described in claim 3 or 4, characterized in that, The cover plate assembly is provided with two guide structures extending along the first direction, and the two guide structures extend into the two first cavities respectively. The guide structure is tubular and is sleeved on the outer periphery of the rod; The elastic element is sleeved on the outer periphery of the guide structure and the rod, and one end of the elastic element facing the cover plate assembly is connected to the guide structure.

6. The connector assembly as described in claim 5, characterized in that, The tubular structure includes a tube and a mating part. One end of the tube is connected to the interior of the filter element assembly, and the edge of the tube opening at the other end of the tube is connected to the mating part. The mating part is provided with an inclined structure on the side facing the protruding part, and the inclined structure is inclined downward in the opposite direction of the first direction; the inclined structure is used to move in the second direction and press against the protruding part, so that the protruding part moves in the opposite direction of the first direction; There is an angle between the first direction and the second direction.

7. The connector assembly as described in claim 5, characterized in that, The main body of the connector has a connecting structure on its exterior, which is used to connect to the outer shell of the filter element assembly.

8. The connector assembly as described in claim 5, characterized in that, The cover plate assembly is also provided with two sleeves extending along the first direction, the sleeves being located on the outside of the guide structure; The notch is fitted around the outer periphery of the sleeve, and the notch forms a sealing fit with the sleeve.

9. A filter cartridge device, characterized in that, include: Filter cartridge assembly; The connector assembly as described in any one of claims 1 to 8, wherein the connector assembly is installed in conjunction with the filter element assembly.

10. A water purification device, characterized in that, The water purification equipment includes the filter cartridge device as described in claim 9.

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