Connector mounting structure, filter element structure and water purification equipment

Abstract

The utility model discloses a connector mounting structure, a filter element structure and water purification equipment, and relates to the technical field of water purification, the connector mounting structure comprises a cover body assembly and a connecting assembly, the cover body assembly comprises a first cover body and a second cover body, and the first cover body is provided with a first pipe body; a first limiting hole is formed in the wall surface of the first pipe body, a first opening is formed in one end of the first pipe body, and a first notch is formed in the first opening; the second cover body abuts against one side of the first cover body, and a first clamping part is arranged on the side, facing the first limiting hole, of the second cover body. The connecting assembly comprises a first connector, the first connecting end of the first connector is located in the first pipe body, a first groove is formed in the first connecting end in a winding mode, and the first clamping part penetrates through the first limiting hole to be clamped into the first groove; the first connector is provided with a first protrusion, and the first protrusion is clamped into the first notch. According to the technical scheme, the connection process of the first connector and the cover body assembly is simplified, the connection stability and reliability are enhanced, and the installation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of water purification technology, and in particular to a connector installation structure, a filter element structure, and a water purification device. Background Technology

[0002] Currently, water purifier filter cartridges typically have multiple interfaces, including raw water interface, pure water interface, and concentrated water interface. These interfaces are connected to various corresponding pipelines of the water purifier through multiple connectors. However, these connectors are independent of each other, and when a connector is connected to an interface on the filter cartridge, the connector can easily rotate relative to the interface; therefore, the existing connector installation structure suffers from low stability. Utility Model Content

[0003] The main purpose of this application is to propose a connector installation structure, filter element structure, and water purification equipment, aiming to solve the problem of low stability in existing connector installation structures.

[0004] To achieve the above objectives, the joint mounting structure proposed in this application includes:

[0005] A cover assembly, comprising a first cover and a second cover, wherein the first cover is provided with a first tube; the wall of the first tube is provided with a first limiting hole, one end of the first tube is provided with a first opening, and the first opening is provided with a first notch; the second cover abuts against one side of the first cover, and the side of the second cover facing the first limiting hole is provided with a first snap-fit ​​portion;

[0006] A connecting assembly includes a first connector, a first connecting end of the first connector located inside the first tube, a first groove being provided around the first connecting end, and a first snap-fit ​​portion passing through the first limiting hole and snapping into the first groove; the first connector is provided with a first protrusion, and the first protrusion snaps into the first notch.

[0007] In one embodiment, the first cover further includes a second tube, which is disposed between the first tube and the second tube; the wall of the second tube is provided with a second limiting hole, one end of the second tube is provided with a second opening, and the second opening is provided with a second notch; the second cover is provided with a second snap-fit ​​portion on the side facing the second limiting hole, and the second snap-fit ​​portion and the first snap-fit ​​portion are respectively located on opposite sides of the second cover; the connecting assembly further includes a second connector, the second connecting end of the second connector is located inside the second tube, the second connecting end is provided with a second groove, and the second snap-fit ​​portion passes through the second limiting hole and snaps into the second groove; the second connector is provided with a second protrusion, and the second protrusion snaps into the second notch.

[0008] In one embodiment, the second cover is provided with a third tube, the wall of the third tube is provided with a third limiting hole, one end of the third tube is provided with a third opening, and the third opening is provided with a third notch; the first cover is provided with a third snap-fit ​​part on the side facing the third limiting hole; the connecting assembly further includes a third connector, the third connecting end of the third connector is located in the third tube, and the third connecting end is provided with a third groove; the third snap-fit ​​part passes through the third limiting hole and snaps into the third groove; the third connector is provided with a third protrusion, and the third protrusion snaps into the third notch.

[0009] In one embodiment, the second cover includes a plurality of third tubes and a plurality of third connectors, the number of which corresponds to the number of third tubes and third connectors; the third tubes are arranged in a direction perpendicular to the length of the first tube; the third limiting hole is provided between two adjacent third tubes; the third snap-fit ​​part includes a plurality of spaced first inserts, the first inserts passing through the third limiting hole at the corresponding position and snapping into the third groove of the corresponding third connector.

[0010] In one embodiment, the third snap-fit ​​portion is further provided with a second insert plate and a third insert plate. The second insert plate is provided on the side of the first tube body facing the second tube body, and the third tube body that abuts against the first tube body is provided with a fourth limiting hole that cooperates with the second insert plate. The third insert plate is provided on the side of the second tube body facing the first tube body, and the other third tube body that abuts against the second tube body is provided with a fifth limiting hole that cooperates with the third insert plate.

[0011] In one embodiment, the third snap-fit ​​portion further includes a plurality of arc-shaped support portions, which are located between adjacent first insert plates, or between the first insert plate and the second insert plate, or between the first insert plate and the third insert plate; the arc-shaped support portions abut against the outer surface of the third tube body; and the curvature of the arc-shaped support portions is adapted to the curvature of the outer surface of the third tube body.

[0012] In one embodiment, the first snap-fit ​​portion is located on the outer surface of the third tube that abuts against the first tube body, and the second snap-fit ​​portion is located on the outer surface of another third tube that abuts against the second tube body.

[0013] In one embodiment, one side of the first snap-fit ​​portion is connected to the outer surface of the first tube body. The side of the first snap-fit ​​portion facing the first limiting hole is provided with a first abutting arc surface and a first abutting plane. The curvature of the first abutting arc surface matches the curvature of the first groove, and the first abutting arc surface abuts against the bottom wall of the first groove. The first abutting plane abuts against the tube wall at the opening of the first limiting hole; and / or,

[0014] One side of the second snap-fit ​​part is connected to the outer surface of the second tube body. The side of the second snap-fit ​​part facing the second limiting hole is provided with a second abutting arc surface and a second abutting plane. The curvature of the second abutting arc surface is adapted to the curvature of the second groove. The second abutting arc surface abuts against the bottom wall of the second groove. The second abutting plane abuts against the tube wall at the opening of the second limiting hole.

[0015] This application also proposes a filter element structure, including the connector mounting structure as described above, and further including a filter bottle and a filter element, wherein the side of the first cover away from the second cover is connected to the filter bottle, and the first tube communicates with the interior of the filter bottle; the filter element body is disposed inside the filter bottle.

[0016] This application also proposes a water purification device, including the filter element structure as described above.

[0017] In this application's technical solution, a first tube is provided on a first cover, and the first connecting end of the first connector is installed into the first tube. The first snap-fit ​​portion of the second cover engages with the first limiting hole on the first tube to achieve axial positioning of the first connector. The first protrusion on the first connector engages with the first notch on the first tube to achieve circumferential positioning of the first connector, thus ensuring a stable connection between the first connector and the cover assembly. Specifically, the cover assembly includes a first cover and a second cover, with the first tube provided on the first cover. The wall of the first tube has a first limiting hole, and the first connecting end has a first groove. Simultaneously, the first connecting end of the first connector is installed into the first tube, and then the second cover abuts against one side of the first cover. The first cover body has a first locking part on the side facing the first limiting hole; at the same time, since one end of the first tube body has a first opening and a first notch, the first connector has a first protrusion, which engages with the first notch to prevent the first connector from rotating relative to the first tube body, thus achieving circumferential positioning of the first connector; when the first cover body abuts against the second cover body, and the first locking part passes through the first limiting hole and engages with the first groove, it can prevent the first connector from moving along the length of the first tube body, thus achieving axial positioning of the first connector; this connector installation structure simplifies the connection process between the first connector and the cover body assembly, improves the installation efficiency of the first connector, and enhances the stability and reliability of the connection between the first connector and the cover body assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 An exploded structural diagram of an embodiment of the connector mounting structure provided in this application;

[0020] Figure 2 A schematic diagram of an embodiment of the connector mounting structure provided in this application;

[0021] Figure 3 A schematic diagram showing the disassembled structure of the first cover and the second cover of an embodiment of the connector mounting structure provided in this application;

[0022] Figure 4 A schematic diagram of the structure of the first cover body of an embodiment of the connector mounting structure provided in this application;

[0023] Figure 5 A schematic diagram of the structure of the second cover of an embodiment of the connector mounting structure provided in this application.

[0024] Explanation of icon numbers:

[0025] 1. Cover assembly; 11. First cover; 111. First tube; 1111. First limiting hole; 1112. First opening; 1113. First notch; 112. Second tube; 1121. Second limiting hole; 1122. Second opening; 1123. Second notch; 113. Third locking part; 1131. First insert plate; 1132. Second insert plate; 1133. Third insert plate; 1134. Arc-shaped support part; 114. Through hole; 12. Second cover; 121. First locking part; 1211. First abutting arc surface; 1212. First abutting surface 122. Second snap-fit ​​part; 1221. Second abutting arc surface; 1222. Second abutting plane; 123. Third tube body; 1231. Third limiting hole; 1232. Third opening; 1233. Third notch; 1234. Fourth limiting hole; 1235. Fifth limiting hole; 124. Connecting part; 2. Connecting assembly; 21. First connector; 211. First groove; 212. First protrusion; 22. Second connector; 221. Second groove; 222. Second protrusion; 23. Third connector; 231. Third groove; 232. Third protrusion.

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

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

[0028] It should be noted that if the embodiments of this application 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 application 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 that simultaneously satisfies A and B. 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 in this application.

[0030] Currently, water purifier filter cartridges typically have multiple interfaces, including raw water interface, pure water interface, and concentrated water interface. These interfaces are connected to various corresponding pipelines of the water purifier through multiple connectors. However, these connectors are independent of each other, and when a connector is connected to an interface on the filter cartridge, the connector can easily rotate relative to the interface; therefore, the existing connector installation structure suffers from low stability.

[0031] To address the aforementioned problems, this application proposes a connector mounting structure.

[0032] Please see Figures 1 to 5In one embodiment of this application, the connector mounting structure includes a cover assembly 1 and a connecting assembly 2. The cover assembly 1 includes a first cover 11 and a second cover 12. The first cover 11 is provided with a first tube 111. The wall surface of the first tube 111 is provided with a first limiting hole 1111. One end of the first tube 111 is provided with a first opening 1112 and a first notch 1113 at the first opening 1112. The second cover 12 abuts against one side of the first cover 11. The side of the second cover 12 facing the first limiting hole 1111 is provided with a first snap-fit ​​portion 121. The connecting assembly 2 includes a first connector 21. The first connecting end of the first connector 21 is located inside the first tube 111. A first groove 211 is provided around the first connecting end. The first snap-fit ​​portion 121 passes through the first limiting hole 1111 and snaps into the first groove 211. A first protrusion 212 is provided on the first connector 21. The first protrusion 212 snaps into the first notch 1113.

[0033] By setting a first tube 111 on the first cover 11 and installing the first connecting end of the first connector 21 into the first tube 111, the first snap-fit ​​part 121 of the second cover 12 and the first limiting hole 1111 on the first tube 111 are used to achieve axial positioning of the first connector 21. The first protrusion 212 on the first connector 21 and the first notch 1113 on the first tube 111 are used to achieve circumferential positioning of the first connector 21, so that the first connector 21 and the cover assembly 1 are stably connected. Specifically, the cover assembly 1 includes a first cover 11 and a second cover 12. The first cover 11 is provided with a first tube 111, and the wall surface of the first tube 111 is provided with a first limiting hole 1111. The first connecting end is surrounded by a first groove 211. At the same time, the first connecting end of the first connector 21 is installed into the first tube 111, and the second cover 12 is abutted against one side of the first cover 11. The second cover 12 has a first locking part 121 on the side facing the first limiting hole 1111; at the same time, since one end of the first tube 111 has a first opening 1112 and a first notch 1113, the first connector 21 has a first protrusion 212, which engages with the first notch 1113 to prevent the first connector 21 from rotating relative to the first tube 111, thus achieving circumferential positioning of the first connector 21; when the first cover 11 abuts against the second cover 12, and the first locking part 121 passes through the first limiting hole 1111 and engages with the first groove 211, it can prevent the first connector 21 from moving along the length of the first tube 111, thus achieving axial positioning of the first connector 21; this connector installation structure simplifies the connection process between the first connector 21 and the cover assembly 1, improves the installation efficiency of the first connector 21, and enhances the stability and reliability of the connection between the first connector 21 and the cover assembly 1.

[0034] Additionally, when the cover assembly 1 is used for the filter element structure, the filter element structure can be connected to an external pipeline via the first connector 21; for example, the first connector 21 can be connected to a raw water supply pipe or a pure water outlet pipe. The first connector 21 is sealed to the inner wall of the first pipe body 111, specifically by using sealant or a sealing ring.

[0035] In one embodiment, the first cover 11 is further provided with a second tube 112, which is disposed between the first tube 111 and the second tube 112; the wall of the second tube 112 is provided with a second limiting hole 1121, one end of the second tube 112 is provided with a second opening 1122, and a second notch 1123 is provided at the second opening 1122; a second snap-fit ​​part 122 is provided on the side of the second cover 12 facing the second limiting hole 1121, and the second snap-fit ​​part 122 and the first snap-fit ​​part 121 are respectively located on opposite sides of the second cover 12; the connecting assembly 2 further includes a second connector 22, the second connecting end of the second connector 22 is located inside the second tube 112, a second groove 221 is provided around the second connecting end, and the second snap-fit ​​part 122 passes through the second limiting hole 1121 and snaps into the second groove 221; a second protrusion 222 is provided on the second connector 22, and the second protrusion 222 snaps into the second notch 1123.

[0036] By adding a second tube 112 to the first cover 11, the number of connectors that can be installed in the cover assembly 1 is increased. Specifically, the second cover 12 is positioned between the first tube 111 and the second tube 112, and the second snap-fit ​​portion 122 and the first snap-fit ​​portion 121 are located on opposite sides of the second cover 12. When the first connector 21 is installed into the first tube 111, the first protrusion 212 on the first connector 21 snaps into the first notch 1113 on the first tube 111 to prevent the first connector 21 from rotating relative to the first tube 111, thus achieving circumferential positioning of the first connector 21. At the same time, when the second connector 22 is installed into the second tube 112, the second protrusion 222 on the second connector 22 snaps into the first notch 1113. The second notch 1123 on the second tube body 112 prevents the second connector 22 from rotating relative to the second tube body 112, thus achieving circumferential positioning of the second connector 22. Then, the second cover 12 and the first cover 11 abut against each other. At this time, the first locking part 121 passes through the first limiting hole 1111 and engages with the first groove 211, while the second locking part 122 passes through the second limiting hole 1121 and engages with the second groove 221. This prevents the first connector 21 from moving along the length of the first tube body 111 and prevents the second connector 22 from moving along the length of the second tube body 112, thus achieving axial positioning of the second connector 22. By utilizing the first locking part 121 and the second locking part 122 of the second cover 12, axial positioning of the first connector 21 and the second connector 22 can be achieved simultaneously, improving the installation efficiency of the first connector 21 and the second connector 22. When the cover assembly 1 is used for the filter element structure, the filter element structure can be connected to an external pipeline through the first connector 21 and the second connector 22. For example, the first connector 21 can be connected to the raw water supply pipe, and the second connector 22 can be connected to the pure water outlet pipe. In addition, the second connector 22 is sealed to the inner wall of the second pipe body 112. Specifically, the sealing connection can be achieved by using sealant or by using a sealing ring.

[0037] In one embodiment, the second cover 12 is provided with a third tube 123, the wall of the third tube 123 is provided with a third limiting hole 1231, one end of the third tube 123 is provided with a third opening 1232, and the third opening 1232 is provided with a third notch 1233; the first cover 11 is provided with a third snap-fit ​​part 113 on the side facing the third limiting hole 1231; the connecting assembly 2 also includes a third connector 23, the third connecting end of the third connector 23 is located inside the third tube 123, and a third groove 231 is provided around the third connecting end; the third snap-fit ​​part 113 passes through the third limiting hole 1231 and snaps into the third groove 231; the third connector 23 is provided with a third protrusion 232, and the third protrusion 232 snaps into the third notch 1233.

[0038] By adding a third tube 123 to the second cover 12 and installing a third connector 23 on the third tube 123, the number of connectors that can be installed in the cover assembly 1 can be increased. This allows the filter element structure to be connected to the corresponding pipelines of the water purification equipment through the first connector 21, the second connector 22, and the third connector 23, thus accommodating more connection needs. The cooperation between the third protrusion 232 on the third connector 23 and the third notch 1233 on the third tube 123 achieves axial positioning of the third connector 23; and the cooperation between the third limiting hole 1231 on the third tube 123 and the third snap-fit ​​part 113 on the first cover 11 achieves circumferential positioning of the third connector 23. Through axial and circumferential positioning, the stability and reliability of the connection between the third connector 23 and the cover assembly 1 are improved. Furthermore, when the cover assembly 1 is used in the filter element structure, the filter element structure can be connected to an external pipeline via the first connector 21, the second connector 22, and the third connector 23. For example, the first connector 21 can be connected to the raw water supply pipe, the second connector 22 can be connected to the pure water outlet pipe, and the third connector 23 can be connected to the concentrated water outlet pipe. The connector installation structure, by adding multiple pipes and connectors, not only improves the stability and reliability of the connection between the connecting assembly 2 and the cover assembly 1, but also improves the installation efficiency between the connecting assembly 2 and the cover assembly 1, making the installation of the connecting assembly 2 more convenient and faster. It should be noted that the third connector 23 is sealed to the inner wall of the third pipe 123, which can be achieved using sealant or a sealing ring.

[0039] In one embodiment, the second cover 12 includes a plurality of third tubes 123 and a plurality of third connectors 23, the number of third tubes 123 and the number of third connectors 23 corresponding to each other; the third tubes 123 are arranged in a direction perpendicular to the length of the first tube 111; the third limiting hole 1231 is provided between two adjacent third tubes 123; the third snap-fit ​​part 113 includes a plurality of spaced first inserts 1131, the first inserts 1131 passing through the third limiting hole 1231 at the corresponding position and snapping into the third groove 231 of the corresponding third connector 23.

[0040] The second cover 12 is provided with multiple third pipes 123. The connecting assembly 2 includes third connectors 23 corresponding to the number of third pipes 123, allowing the cover assembly 1 to connect more pipes simultaneously through the connecting assembly 2. The third pipes 123 are arranged along the length direction perpendicular to the first pipe 111, which saves space and increases the structural compactness of the second cover 12. The third limiting hole 1231 is provided between two adjacent third pipes 123. The third snap-fit ​​part 113 is composed of several spaced first insert plates 1131. Each first insert plate 1131 passes through the third limiting hole 1231 at the corresponding position and snaps into the third groove 231 of the corresponding third connector 23. By using one first insert plate 1131 to achieve axial positioning of two third connectors 23, the installation efficiency can be improved, and the overall structural compactness can be further improved. In addition, the number of third pipes 123 and third connectors 23 can be increased or decreased as needed, providing high flexibility and scalability to adapt to various different pipe connection requirements.

[0041] In one embodiment, the third snap-fit ​​portion 113 is further provided with a second insert plate 1132 and a third insert plate 1133. The second insert plate 1132 is provided on the side of the first tube 111 facing the second tube 112. The third tube 123 that abuts against the first tube 111 is provided with a fourth limiting hole 1234 that cooperates with the second insert plate 1132. The third insert plate 1133 is provided on the side of the second tube 112 facing the first tube 111. The other third tube 123 that abuts against the second tube 112 is provided with a fifth limiting hole 1235 that cooperates with the third insert plate 1133.

[0042] The second insert plate 1132 in the third snap-fit ​​part 113 cooperates with the fourth limiting hole 1234, and the third insert plate 1133 in the third snap-fit ​​part 113 cooperates with the fifth limiting hole 1235. By using the second insert plate 1132 and the third insert plate 1133, additional axial positioning of the third tube 123 arranged at both ends can be achieved, and the connection stability between the second cover 12 and the first cover 11 can also be improved. For example, at least three third tubes 123 are arranged along the length direction perpendicular to the first tube 111. The second insert plate 1132 is located on the side of the first tube 111 facing the second tube 112. The third tube 123 adjacent to the first tube 111 is provided with a fourth limiting hole 1234 that cooperates with the second insert plate 1132. Similarly, the third insert plate 1133 is located on the side of the second tube 112 facing the first tube 111. The other third tube 123 adjacent to the second tube 112 is provided with a fifth limiting hole 1235 that cooperates with the third insert plate 1133. This not only enhances the connection stability of the entire structure but also ensures installation efficiency.

[0043] In one embodiment, the third snap-fit ​​portion 113 further includes a plurality of arc-shaped support portions 1134, which are located between adjacent first insert plates 1131, or between the first insert plate 1131 and the second insert plate 1132, or between the first insert plate 1131 and the third insert plate 1133; the arc-shaped support portions 1134 abut against the outer surface of the third tube body 123; the curvature of the arc-shaped support portions 1134 is adapted to the curvature of the outer surface of the third tube body 123.

[0044] The arc-shaped support portion 1134 provides additional support for the third tube body 123, enhancing the connection stability between the third snap-fit ​​portion 113 and the third tube body 123. At the same time, by adapting the arc-shaped support portion 1134 to the curvature of the outer surface of the third tube body 123, the force exerted by the arc-shaped support portion 1134 on the third tube body 123 is evenly distributed, avoiding the phenomenon of local stress concentration on the third tube body 123.

[0045] In one embodiment, the first snap-fit ​​portion 121 is located on the outer surface of the third tube 123 that abuts against the first tube 111, and the second snap-fit ​​portion 122 is located on the outer surface of another third tube 123 that abuts against the second tube 112.

[0046] By directly setting the first snap-fit ​​part 121 on the outer surface of the third tube 123 that abuts against the first tube 111, and placing the second snap-fit ​​part 122 on the outer surface of another third tube 123 that abuts against the second tube 112, space can be utilized more effectively when the first cover 11 and the second cover 12 are fitted together. At the same time, it is also convenient for the first snap-fit ​​part 121 to directly snap into the first limiting hole 1111 and the first groove 211, and for the second snap-fit ​​part 122 to directly snap into the second limiting hole 1121 and the second groove 221, thereby making the installation process of the cover assembly 1 and the connector assembly simpler, reducing the requirement for precise alignment, and lowering the installation difficulty.

[0047] In one embodiment, one side of the first snap-fit ​​portion 121 is connected to the outer surface of the first tube body 111. The first snap-fit ​​portion 121 is provided with a first abutting arc surface 1211 and a first abutting plane 1212 on the side facing the first limiting hole 1111. The curvature of the first abutting arc surface 1211 is adapted to the curvature of the first groove 211. The first abutting arc surface 1211 abuts against the bottom wall of the first groove 211. The first abutting plane 1212 abuts against the tube wall at the opening of the first limiting hole 1111.

[0048] The fit between the first abutting arc surface 1211 and the first groove 211 ensures a stable connection between the first snap-fit ​​part 121 and the first connector 21, reducing loosening at the connection point; the abutting of the first abutting plane 1212 with the pipe wall provides additional stability, preventing displacement of the first snap-fit ​​part 121 due to external forces.

[0049] In one embodiment, one side of the second snap-fit ​​portion 122 is connected to the outer surface of the second tube body 112. The second snap-fit ​​portion 122 is provided with a second abutting arc surface 1221 and a second abutting plane 1222 on the side facing the second limiting hole 1121. The curvature of the second abutting arc surface 1221 is adapted to the curvature of the second groove 221. The second abutting arc surface 1221 abuts against the bottom wall of the second groove 221. The second abutting plane 1222 abuts against the tube wall at the opening of the second limiting hole 1121.

[0050] Similarly, the cooperation between the second abutting arc surface 1221 and the second groove 221 ensures a stable connection between the second snap-fit ​​part 122 and the second connector 22, reducing loosening at the connection point; the abutting of the second abutting plane 1222 with the pipe wall provides additional stability, preventing displacement of the second snap-fit ​​part 122 due to external forces.

[0051] It should be noted that the side of the first cover 11 away from the first tube 111 and the second tube 112 is used to connect with the filter bottle of the filter element structure. The first tube 111 and the second tube 112 are in communication with the filter bottle. The first cover 11 is provided with a through hole 114. The side of the second cover 12 connected to the first cover 11 is provided with a connecting part 124. The connecting part 124 is inserted into the through hole 114, so that the first cover 11 and the second cover 12 are connected, improving the connection stability of the first cover 11 and the second cover 12. At the same time, the third tube 123 on the second cover 12 is in communication with the filter bottle through the channel of the connecting part 124, so as to ensure that the fluid in the filter bottle can flow to the outside through the first tube 111, the second tube 112 and the third tube 123.

[0052] In addition, to provide connection stability, the first snap-fit ​​portion 121 is interference-fitted with the first groove 211, the second snap-fit ​​portion 122 is interference-fitted with the second groove 221, and the third snap-fit ​​portion 113 is interference-fitted with the third groove 231.

[0053] In this application's technical solution, a first tube 111 is provided on a first cover 11, and the first connecting end of the first connector 21 is installed inside the first tube 111. The first snap-fit ​​portion 121 of the second cover 12 engages with the first limiting hole 1111 on the first tube 111 to achieve axial positioning of the first connector 21. The first protrusion 212 on the first connector 21 engages with the first notch 1113 on the first tube 111 to achieve circumferential positioning of the first connector 21, thus achieving a stable connection between the first connector 21 and the cover assembly 1. Specifically, the cover assembly 1 includes a first cover 11 and a second cover 12. The first cover 11 is provided with a first tube 111, and the wall surface of the first tube 111 is provided with a first limiting hole 1111. A first groove 211 is wound around the first connecting end. Simultaneously, the first connecting end of the first connector 21 is installed inside the first tube 111, and then the second cover 12 is connected to the first cover 11. The first cover 11 abuts against the second cover 12; the second cover 12 has a first locking part 121 on the side facing the first limiting hole 1111; at the same time, the first tube 111 has a first opening 1112 at one end, and a first notch 1113 at the first opening 1112; correspondingly, the first connector 21 has a first protrusion 212, which is engaged with the first notch 1113 to prevent the first connector 21 from rotating relative to the first tube 111, thereby achieving circumferential positioning of the first connector 21; when the first cover 11 abuts against the second cover 12, and the first locking part 121 passes through the first limiting hole 1111 and engages with the first groove 211, it can prevent the first connector 21 from moving along the length direction of the first tube 111, thereby achieving axial positioning of the first connector 21; this connector installation structure simplifies the connection process between the first connector 21 and the cover assembly 1, improves the installation efficiency of the first connector 21, and enhances the stability and reliability of the connection between the first connector 21 and the cover assembly 1.

[0054] This application also proposes a filter element structure, which includes a connector mounting structure, a filter bottle, and a filter element. The specific structure of the connector mounting structure is as described in the above embodiments. Since this filter element structure 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. Specifically, the side of the first cover 11 away from the second cover 12 is connected to the filter bottle, and the first tube 111 communicates with the interior of the filter bottle; the filter element body is disposed inside the filter bottle.

[0055] This application also proposes a water purification device, which includes a filter element structure. The specific structure of the filter element structure is as described in 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, which will not be described in detail here.

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

Claims

1. A connector mounting structure, characterized in that, include: A cover assembly, comprising a first cover and a second cover, wherein the first cover is provided with a first tube; the wall of the first tube is provided with a first limiting hole, one end of the first tube is provided with a first opening, and the first opening is provided with a first notch; the second cover abuts against one side of the first cover, and the side of the second cover facing the first limiting hole is provided with a first snap-fit ​​portion; A connecting assembly includes a first connector, a first connecting end of the first connector located inside the first tube, a first groove being provided around the first connecting end, and a first snap-fit ​​portion passing through the first limiting hole and snapping into the first groove; the first connector is provided with a first protrusion, and the first protrusion snaps into the first notch.

2. The connector mounting structure as described in claim 1, characterized in that, The first cover also includes a second tube, which is located between the first tube and the second tube. The wall of the second tube has a second limiting hole, and one end of the second tube has a second opening with a second notch. The second cover has a second snap-fit ​​part on the side facing the second limiting hole, and the second snap-fit ​​part and the first snap-fit ​​part are located on opposite sides of the second cover. The connecting assembly also includes a second connector, the second connecting end of which is located inside the second tube. A second groove is provided around the second connecting end, and the second snap-fit ​​part passes through the second limiting hole and snaps into the second groove. The second connector has a second protrusion that snaps into the second notch.

3. The connector mounting structure as described in claim 2, characterized in that, The second cover has a third tube, the wall of which has a third limiting hole, one end of which has a third opening, and the third opening has a third notch; the first cover has a third snap-fit ​​part on the side facing the third limiting hole; the connecting assembly also includes a third connector, the third connecting end of which is located inside the third tube, and the third connecting end has a third groove; the third snap-fit ​​part passes through the third limiting hole and snaps into the third groove; the third connector has a third protrusion, which snaps into the third notch.

4. The connector mounting structure as described in claim 3, characterized in that, The second cover includes a plurality of third tubes and a plurality of third connectors, the number of which corresponds to the number of third tubes and third connectors; the third tubes are arranged in a direction perpendicular to the length of the first tube; the third limiting hole is located between two adjacent third tubes; the third snap-fit ​​part includes a plurality of spaced first inserts, the first inserts passing through the third limiting hole at the corresponding position and snapping into the third groove of the corresponding third connector.

5. The connector mounting structure as described in claim 3, characterized in that, The third snap-fit ​​part is further provided with a second insert plate and a third insert plate. The second insert plate is located on the side of the first tube body facing the second tube body. The third tube body that abuts against the first tube body is provided with a fourth limiting hole that cooperates with the second insert plate. The third insert plate is located on the side of the second tube body facing the first tube body. The other third tube body that abuts against the second tube body is provided with a fifth limiting hole that cooperates with the third insert plate.

6. The connector mounting structure as described in claim 5, characterized in that, The third snap-fit ​​portion further includes several arc-shaped support portions, which are located between adjacent first insert plates, or between the first insert plate and the second insert plate, or between the first insert plate and the third insert plate; the arc-shaped support portions abut against the outer surface of the third tube body; the curvature of the arc-shaped support portions is adapted to the curvature of the outer surface of the third tube body.

7. The joint mounting structure as described in any one of claims 3 to 6, characterized in that, The first snap-fit ​​portion is located on the outer surface of the third tube that abuts against the first tube body, and the second snap-fit ​​portion is located on the outer surface of another third tube that abuts against the second tube body.

8. The connector mounting structure as described in claim 7, characterized in that, One side of the first snap-fit ​​portion is connected to the outer surface of the first tube body. The side of the first snap-fit ​​portion facing the first limiting hole is provided with a first abutting arc surface and a first abutting plane. The curvature of the first abutting arc surface matches the curvature of the first groove, and the first abutting arc surface abuts against the bottom wall of the first groove. The first abutting plane abuts against the tube wall at the opening of the first limiting hole; and / or, One side of the second snap-fit ​​part is connected to the outer surface of the second tube body. The side of the second snap-fit ​​part facing the second limiting hole is provided with a second abutting arc surface and a second abutting plane. The curvature of the second abutting arc surface is adapted to the curvature of the second groove. The second abutting arc surface abuts against the bottom wall of the second groove. The second abutting plane abuts against the tube wall at the opening of the second limiting hole.

9. A filter element structure, characterized in that, The device includes the connector mounting structure as described in any one of claims 1 to 8, and further includes a filter bottle and a filter element, wherein the side of the first cover away from the second cover is connected to the filter bottle, and the first tube communicates with the interior of the filter bottle; the filter element body is disposed inside the filter bottle.

10. A water purification device, characterized in that, Includes the filter element structure as described in claim 9.

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