A quick-installation structure for filter cartridges

Abstract

This utility model discloses a quick-installation structure for a filter element, including a support base and a filter element assembly disposed on the support base. The filter element assembly includes a filter element housing, a filter element body disposed within the filter element housing, an inner end cap disposed on the filter element body, and an outer end cap disposed outside the inner end cap. A plurality of water passage connectors communicating with the filter element body are provided between the inner end cap and the filter element housing. An installation cavity is formed on the inner side of the inner end cap to engage with the water passage connectors. An installation groove is provided on the inner wall of the installation cavity, and an installation block corresponding to the installation groove is provided on the water passage connector. The installation block can be locked by rotation after being inserted into the installation groove. The outer end cap is used to restrict the rotation of the water passage connector in the locked state. The water passage connector of this utility model achieves quick assembly through insertion and rotation, thereby improving installation efficiency and ensuring connection stability.

Description

Technical Field

[0001] This utility model relates to the field of filter element technology, and in particular to a quick installation structure for a filter element. Background Technology

[0002] A filter cartridge is a core component installed inside a filtration device or water purification equipment to remove impurities from water. It is usually composed of filter media and a frame. The filter media can be activated carbon, PP cotton, ultrafiltration membrane, resin, ceramics, etc. Different materials are selected depending on the application. Filter cartridges are widely used in household water dispensers, water purifiers, coffee machines, and industrial pure water systems. They usually need to be replaced regularly to ensure the filtration effect and normal operation of the equipment.

[0003] Existing filter cartridges have problems such as cumbersome installation steps, difficulty in alignment, and long disassembly and assembly time. When replacing or maintaining them, users need to align the interface and tighten it with tools. The operation is not only time-consuming and laborious, but also may lead to inadequate sealing or damage to the interface if not handled carefully, affecting the normal use and sealing performance of the equipment and the user experience. Utility Model Content

[0004] The purpose of this invention is to provide a quick-installation structure for filter elements. The water connector achieves rapid assembly through insertion and rotation, thereby improving installation efficiency and ensuring connection stability.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a quick-installation structure for a filter element, comprising a support base and a filter element assembly disposed on the support base, the filter element assembly comprising a filter element housing, a filter element body disposed within the filter element housing, an inner end cap disposed on the filter element body, and an outer end cap disposed outside the inner end cap; a plurality of water passage connectors communicating with the filter element body are provided between the inner end cap and the filter element housing, and an installation cavity is formed on the inner side of the inner end cap for insertion and mating with the water passage connectors; an installation groove is provided on the inner wall of the installation cavity, and an installation block corresponding to the installation groove is provided on the water passage connector; the installation block can be locked by rotation after being inserted into the installation groove; the outer end cap is used to restrict the rotation of the water passage connector in the locked state.

[0006] By adopting the above technical solution, the water connector can be quickly and reliably installed on the inner end cover by plugging and rotating, while the outer end cover limits and constrains it, ensuring the stability of the filter element assembly after assembly.

[0007] The present invention is further configured such that: the mounting groove includes a guide groove and a locking groove, the guide groove extends inward along the axial direction of the mounting cavity from the open end of the mounting cavity, and the locking groove is arranged along the circumference of the mounting cavity and is perpendicularly connected to the guide groove.

[0008] By adopting the above technical solution, the guide groove and the locking groove together form an L-shaped mounting groove. The mounting block can be inserted along the guide groove in a straight line first, and then rotated along the locking groove to realize the step-by-step operation of insertion and locking, improve assembly efficiency and prevent accidental detachment.

[0009] The present invention is further configured such that: the inner end cover is provided with an outwardly extending mounting portion, the mounting cavity is provided in the mounting portion, and the top end of the mounting portion is provided with a limiting groove communicating with the locking groove.

[0010] By adopting the above technical solution, the upper opening of the locking groove allows users to easily observe the locking status of the mounting block from above, ensuring that it rotates into place.

[0011] The present invention is further configured such that: a limiting protrusion is provided on the outer end cover, and a corresponding slot is provided on the mounting block; the limiting protrusion passes through the limiting groove and is inserted into the slot.

[0012] By adopting the above technical solution, the limiting protrusion and the mounting block slot cooperate with each other to constrain the position of the mounting block after locking, preventing it from loosening or reversing in the locked state and improving the reliability of locking.

[0013] The present invention is further configured such that: a connector is provided on the filter element housing, the end of the water connector away from the inner end cover is bent downward and inserted into the connector, and a water pipe communicating with the water connector is installed on the connector.

[0014] By adopting the above technical solution, the filter element assembly can be easily connected to the external water circuit, simplifying the installation steps, while ensuring both sealing performance and smooth water flow.

[0015] The present invention is further configured such that: a pull ring is rotatably provided on the inner end cover, and a through groove is provided on the outer end cover for the pull ring to pass through; a locking groove is provided on the outer end cover, and a locking tongue is provided on the inner end cover that can slide relative to the locking groove; the pull ring drives the locking tongue to engage with the locking groove through a transmission structure to achieve locking between the outer end cover and the inner end cover.

[0016] By adopting the above technical solution, it is possible to quickly lock and unlock between the outer end cover and the inner end cover, simplify the filter replacement process, improve disassembly and assembly efficiency, effectively prevent the outer end cover from loosening and falling off, and enhance assembly reliability. The transmission structure is a movable block with a slanted groove that cooperates with the locking tongue. The slanted groove converts the displacement of the movable block into the lateral sliding of the locking tongue, so that the locking tongue can reliably insert into or exit the locking groove, thereby achieving control over locking and unlocking.

[0017] The present invention is further configured such that: the outer end cover is provided with a buckle, and the inner end cover is provided with a snap-fit ​​groove, and the buckle engages with the snap-fit ​​groove.

[0018] By adopting the above technical solution, an auxiliary snap-fit ​​structure is formed between the outer end cap and the inner end cap, which further limits the end cap after locking and prevents it from loosening.

[0019] The present invention is further configured such that: a first sealing ring is provided between the water pipe connector and the mounting part, and a second sealing ring is provided between the water pipe connector and the connector head.

[0020] By adopting the above technical solution, a multi-level sealing structure is formed between the water circuit connector and the inner and outer end caps, ensuring that the filter element assembly maintains a good sealing effect and preventing leakage.

[0021] The present invention is further configured such that: one end of the support base is provided with a support plate, the support plate is provided with a top cover, the top cover is provided with an assembly groove, and the outer end cover is inserted into the assembly groove.

[0022] By adopting the above technical solution, the support plate is used to support the pipeline, booster pump, solenoid valve and other structures, and the filter element assembly can be easily passed through the top cover and installed on the support base, improving the assembly efficiency and stability of the whole machine.

[0023] The present invention is further configured such that a gripping groove is provided on the outer edge of the assembly groove.

[0024] By adopting the above technical solution, the grip groove makes it easier for operators to grasp the outer end cap when replacing or repairing it, thus improving the convenience and safety of operation.

[0025] In summary, this utility model has the following beneficial effects: 1. This utility model provides a composite mounting groove consisting of a guide groove and a locking groove on the inner end cover. Combined with the mounting block on the water connector, the assembly and locking of the water connector and the inner end cover can be completed quickly by insertion and rotation. This eliminates the need for complex operations such as multi-step alignment and tightening, thus greatly improving assembly efficiency.

[0026] 2. The limiting protrusion on the outer end cover can cooperate with the mounting block slot to prevent backing under pressure or vibration; the snap-fit ​​groove between the outer end cover and the inner end cover assists in limiting the locking strength and overall stability.

[0027] 3. This utility model achieves quick unlocking and easy reset of the outer end cover through the linkage mechanism of the pull ring and the locking tongue. The opening and closing operation can be completed without tools, which greatly improves the convenience of use. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is an exploded view of the filter element assembly of this utility model.

[0030] Figure 3 This is a cross-sectional view of the filter element assembly of this utility model.

[0031] Figure 4 yes Figure 3 A magnified view of A in the middle.

[0032] Figure 5 This is a schematic diagram of the structure of the inner end cap of this utility model.

[0033] Figure 6 This is a structural schematic diagram of the water connector of this utility model.

[0034] Figure 7 This is a schematic diagram of the structure of the outer end cap of this utility model.

[0035] Figure 8 This is a schematic diagram of the top cover of this utility model.

[0036] In the diagram: 1. Support base; 2. Filter element assembly; 21. Filter element body; 22. Inner end cap; 221. Mounting part; 222. Mounting cavity; 223. Mounting groove; 2231. Guide groove; 2232. Locking groove; 2233. Limiting groove; 224. Snap-fit ​​groove; 23. Outer end cap; 231. Limiting protrusion; 232. Through groove; 233. Locking groove; 234. Buckle; 24. Filter element housing; 241. Connector; 242. Water pipe; 3. Water circuit connector; 31. Mounting block; 311. Slot; 32. First sealing ring; 33. Second sealing ring; 4. Pull ring; 41. Locking tongue; 5. Support plate; 6. Top cover; 61. Assembly groove; 62. Grip groove. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] like Figures 1 to 4 As shown, the present invention provides a quick-installation structure for a filter element, including a support base 1 and a filter element assembly 2 installed on the support base 1. The filter element assembly 2 consists of a filter element housing 24, a filter element body 21, an inner end cap 22, and an outer end cap 23. The filter element body 21 is disposed inside the filter element housing 24, the inner end cap 22 is installed on the filter element body 21, and the outer end cap 23 is sleeved on the inner end cap 22. The filter element body 21 and the inner end cap 22 cooperate to form a closed cavity, and filter element material is disposed inside the cavity for filtering the flowing water. Several water passage connectors 3 are provided between the inner end cap 22 and the filter element housing 24, and the water passage connectors 3 are connected to the filter element body 21.

[0039] like Figures 3 to 6 As shown, the inner end cap 22 has an outwardly extending mounting portion 221. The inner side of the mounting portion 221 has a mounting cavity 222. The mounting cavity 222 is a hollow cylindrical structure. Its inner wall has a mounting groove 223 along the circumference. Each water connector 3 is provided with a corresponding mounting block 31, which can cooperate with the mounting groove 223 during installation. The mounting groove 223 is composed of a guide groove 2231 and a locking groove 2232. The guide groove 2231 extends axially from the opening of the mounting cavity 222 into the cavity. The locking groove 2232 is arranged along the circumference of the mounting cavity 222 and is perpendicularly connected to the guide groove 2231. The junction of the guide groove 2231 and the locking groove 2232 forms a sliding turning area. The guide groove 2231 and the locking groove 2232 together form an L-shaped mounting groove 223, which facilitates the mounting block 31 to rotate into the locking groove 2232 after insertion, thereby realizing the rapid rotation and locking of the water connector 3.

[0040] like Figures 3 to 6 As shown, the mounting part 221 is provided with a limiting groove 2233 that communicates with the locking groove 2232. The limiting groove 2233 opens away from the guide groove 2231, allowing the user to easily observe the locking status of the mounting block 31 from above and ensure that it rotates into place. The filter element housing 24 is provided with a connector 241 that matches the water connector 3. The connector 241 is connected to the external water pipe 242 to ensure that water flows smoothly into or out of the filter element. A limiting protrusion 231 is provided on the inner side of the outer end cover 23. A slot 311 is formed on the mounting block 31, which allows the limiting protrusion 231 on the outer end cover 23 to pass through the limiting groove 2233 and insert into the mounting block 31, thereby constraining the mounting block 31 and preventing the water connector 3 from retracting due to water flow impact after locking, thus improving the reliability of the locking structure.

[0041] like Figure 2 As shown, for easy disassembly and assembly, a rotatable pull ring 4 is installed on the inner end cover 22. The pull ring 4 is connected to the locking tongue 41 set on the inner end cover 22 through a transmission structure. The locking tongue 41 is located in the locking groove 233 of the outer end cover 23. The transmission structure is a movable block with a groove that cooperates with the locking tongue 41. The groove converts the displacement of the movable block into the lateral sliding of the locking tongue 41. When the pull ring 4 is pulled, the pull ring 4 rotates and generates a pushing force on the movable block, causing the locking tongue 41 to exit the locking groove 233, so that the outer end cover 23 is separated from the inner end cover 22, which facilitates the quick unlocking and locking of the outer end cover 23.

[0042] like Figure 7As shown, the outer wall of the outer end cover 23 is provided with a buckle 234, and the inner end cover 22 is provided with a corresponding snap-fit ​​groove 224. After assembly, the buckle 234 snaps into the snap-fit ​​groove 224, which can provide additional snap-fit ​​without affecting the unlocking of the lock tongue 41. The stability of the inner end cover 22 and the outer end cover 23 is ensured by the first sealing ring 32 between the water pipe connector 3 and the mounting part 221, and the second sealing ring 33 between the water pipe connector 3 and the connector 241. The first sealing ring 32 and the second sealing ring 33 work together to maintain reliable sealing performance under long-term pressure of the water pipe.

[0043] like Figure 8 As shown, a support plate 5 is formed on the top side of the support base 1. The support plate 5 is used to support the pipeline, booster pump, solenoid valve and other structures. A top cover 6 is provided on the support plate 5. The top cover 6 is provided with an assembly groove 61. The filter element assembly 2 can easily pass through the top cover 6 and be installed on the support base 1. A grip groove 62 is provided on the outer edge of the top cover 6. When installing or removing the outer end cover 23, the user can insert their fingers into the grip groove 62 to apply force, reduce the resistance to disassembly and installation, and prevent the filter element assembly 2 from being difficult to remove.

[0044] During assembly, the mounting block 31 of the water connector 3 is first inserted into the mounting cavity 222 along the guide groove 2231. After the water connector 3 is fully inserted, it is rotated to allow the mounting block 31 to enter the locking groove 2232. Then, the outer end cover 23 is fitted onto the inner end cover 22. The limiting protrusion 231 passes through the limiting groove 2233 and engages with the slot 311 on the mounting block 31, thus locking the water connector 3. At the same time, the buckle 234 engages with the locking groove 224. Then, the pull ring 4 is pressed down, and the pull ring 4 drives the locking tongue 41 to move outward, thus... The locking tongue 41 is inserted into the locking groove 233 to complete the locking between the inner end cover 22 and the outer end cover 23. Finally, the filter element body 21 is placed into the filter element housing 24, ensuring that the other end of the water connector 3 is inserted into the connector 241. When it is necessary to replace the internal components, the user can first pull the pull ring 4 to release the engagement between the locking tongue 41 and the locking groove 233, then pull out the outer end cover 23, and then rotate the water connector 3 in the opposite direction to make the mounting block 31 disengage from the locking groove 2232 and exit the mounting cavity 222 along the guide groove 2231, so that the water connector 3 can be easily removed.

[0045] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A quick-installation structure for a filter element, comprising a support base (1) and a filter element assembly (2) disposed on the support base (1), characterized in that: The filter element assembly (2) includes a filter element housing (24), a filter element body (21) disposed in the filter element housing (24), an inner end cap (22) disposed on the filter element body (21), and an outer end cap (23) disposed outside the inner end cap (22); A plurality of water connectors (3) communicating with the filter element body (21) are provided between the inner end cap (22) and the filter element housing (24). An installation cavity (222) is formed on the inner side of the inner end cap (22) to be inserted and matched with the water connectors (3). The inner wall of the mounting cavity (222) is provided with an L-shaped mounting groove (223), and the water connector (3) is provided with a mounting block (31) corresponding to the mounting groove (223). The mounting block (31) can be locked by rotation after being inserted into the mounting groove (223). The outer end cap (23) is used to restrict the rotation of the water connector (3) in the locked state.

2. The quick-installation structure for a filter element according to claim 1, characterized in that: The mounting groove (223) includes a guide groove (2231) and a locking groove (2232). The guide groove (2231) extends inward along the axial direction of the mounting cavity (222) from the open end of the mounting cavity (222). The locking groove (2232) is arranged along the circumference of the mounting cavity (222) and is perpendicularly connected to the guide groove (2231).

3. The quick-installation structure for a filter element according to claim 2, characterized in that: The inner end cap (22) is provided with an outwardly extending mounting portion (221), the mounting cavity (222) is located in the mounting portion (221), and the top of the mounting portion (221) is provided with a limiting groove (2233) that communicates with the locking groove (2232).

4. The quick-installation structure for a filter element according to claim 3, characterized in that: The outer end cap (23) is provided with a limiting protrusion (231), and the mounting block (31) is provided with a corresponding slot (311). The limiting protrusion (231) passes through the limiting groove (2233) and is inserted into the slot (311).

5. The quick-installation structure for a filter element according to claim 3, characterized in that: The filter housing (24) is provided with a connector (241). The end of the water connector (3) away from the inner end cap (22) is bent downward and inserted into the connector (241). A water pipe (242) communicating with the water connector (3) is installed on the connector (241).

6. The quick-installation structure for a filter element according to claim 1, characterized in that: The inner end cap (22) is rotatably provided with a pull ring (4), and the outer end cap (23) is provided with a through groove (232) for the pull ring (4) to pass through; The outer end cover (23) is provided with a locking groove (233), and the inner end cover (22) is provided with a locking tongue (41) that can slide relative to the locking groove (233). The pull ring (4) drives the locking tongue (41) to engage with the locking groove (233) through a transmission structure to achieve locking between the outer end cover (23) and the inner end cover (22).

7. The quick-installation structure for a filter element according to claim 1, characterized in that: The outer end cap (23) is provided with a buckle (234), and the inner end cap (22) is provided with a snap-fit ​​groove (224). The buckle (234) and the snap-fit ​​groove (224) engage with each other.

8. The quick-installation structure for a filter element according to claim 5, characterized in that: A first sealing ring (32) is provided between the water connector (3) and the mounting part (221), and a second sealing ring (33) is provided between the water connector (3) and the connector (241).

9. The quick-installation structure for a filter element according to claim 1, characterized in that: One end of the support base (1) is provided with a support plate (5), the support plate (5) is provided with a top cover (6), the top cover (6) is provided with an assembly groove (61), and the outer end cover (23) is inserted into the assembly groove (61).

10. The quick-installation structure for a filter element according to claim 9, characterized in that: The assembly groove (61) has a gripping groove (62) on its outer edge.

Images