An ultrafiltration water purification device
By using the interlocking connection of arc-shaped buckles and arc-shaped grooves, the problem of cumbersome disassembly and assembly of traditional ultrafiltration water purification devices is solved, enabling quick replacement and maintenance of internal components and simplifying the operation steps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
Smart Images

Figure CN224513264U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water purification equipment technology, and in particular to an ultrafiltration water purification device. Background Technology
[0002] Ultrafiltration water purification devices are water treatment equipment that uses ultrafiltration membranes as the core filtration element. They primarily utilize the sieving effect of ultrafiltration membranes to remove suspended particles, colloids, bacteria, viruses, and large organic molecules from water, while retaining some beneficial minerals and trace elements. Due to their high filtration efficiency, effective removal of bacteria, viruses, and other microorganisms, the absence of chemical additives in the filtration process, safety and environmental friendliness, retention of some minerals, better water taste, relatively low operating costs, and ease of maintenance, they are widely used in production and daily life.
[0003] Ultrafiltration water purification devices mainly consist of a cylinder, end caps, and ultrafiltration membrane filter cartridges. The filter cartridges are housed inside the cylinder, and the cylinder is sealed by the end caps. In traditional technology, the end caps are usually connected to the cylinder using clamps or flanges. However, these connection methods involve cumbersome disassembly and assembly steps, resulting in a long time required for replacing and repairing the internal components of the cylinder. Utility Model Content
[0004] This application provides an ultrafiltration water purification device, which aims to solve the technical problem of the long time required for the replacement and maintenance of internal components.
[0005] To solve the above-mentioned technical problems, the technical solution of this application is: an ultrafiltration water purification device, comprising:
[0006] cylindrical body;
[0007] The filter element assembly is detachably connected to the cylinder body;
[0008] The connector is located at the upper end of the cylinder and has an arc-shaped groove circumferentially arranged around it.
[0009] The end cap sleeve is fitted inside the connector, and arc-shaped buckles are hinged on both sides of its circumference. By rotating the arc-shaped buckles, they are pressed into the arc-shaped grooves, so that the connector and the end cap sleeve are connected.
[0010] Optionally, the end cap cylinder near the connector is provided with a guide groove that allows the arc-shaped buckle to pass through, and the end cap cylinder away from the connector is provided with a rotating cover, with a water inlet at the center of the rotating cover.
[0011] Optionally, a positioning block is provided between the rotating cover and the connector.
[0012] Optionally, the connector has a movable hole along its peripheral wall that allows the arc-shaped buckle to rotate, and the arc-shaped buckle is hinged in the movable hole.
[0013] Optionally, the connector is provided with a hinge seat along its outer periphery, and the arc-shaped buckle is installed on the hinge seat through a rotating shaft.
[0014] Optionally, the arc-shaped buckle has an unlocking protrusion along its outer periphery, and the arc-shaped buckle is connected to a rotating handle.
[0015] Optionally, the connector has a sealing groove on its inner circumference for installing a sealing ring.
[0016] Optionally, a limiting ring is provided on the upper part of the inner side of the cylinder, and a support ring is provided on the lower part of the inner side of the cylinder. The filter element assembly is placed on the support ring and fixed by the limiting ring.
[0017] Optionally, a water outlet pipe is threadedly connected to the end of the cylinder away from the end cap cylinder, and a water pump is installed on the water outlet pipe.
[0018] Beneficial effects: By adopting the above technical solution, the arc-shaped buckle is pressed into the arc-shaped groove by rotating it, thereby connecting the connector to the end cap cylinder and achieving a quick connection between the end cap cylinder and the cylinder body. When disassembly is required, the arc-shaped buckle is rotated in the opposite direction. This connection method simplifies the assembly and disassembly process and effectively saves time on the replacement and maintenance of internal cylinder components. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the ultrafiltration water purification device of this application;
[0020] Figure 2 This is a cross-sectional view of the ultrafiltration water purification device of this application;
[0021] Figure 3 This is an enlarged view of part A of the ultrafiltration water purification device of this application;
[0022] Figure 4 This is a schematic diagram of the connector structure of this application;
[0023] Figure 5 This is a three-dimensional structural diagram of part A of the ultrafiltration water purification device of this application.
[0024] In the diagram: 1-Cylinder body, 2-Filter element assembly, 3-Connector, 4-Arc-shaped groove, 5-End cap cylinder, 6-Arc-shaped buckle, 7-Guide groove, 8-Rotating cover, 9-Inlet, 10-Positioning block, 11-Modular hole, 12-Hinge seat, 13-Rotating shaft, 14-Unlocking protrusion, 15-Rotating handle, 16-Sealing groove, 17-Limiting ring, 18-Support ring, 19-Outlet pipe, 20-Water pump. Detailed Implementation
[0025] The specific embodiments of this application will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this application and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.
[0026] Example 1:
[0027] See Figures 1 to 4 An ultrafiltration water purification device, comprising:
[0028] Cylinder 1;
[0029] Filter element assembly 2 is detachably connected inside cylinder 1;
[0030] Connector 3 is located at the upper end of cylinder 1, and has an arc-shaped groove 4 circumferentially arranged around it.
[0031] The end cap cylinder 5 is fitted inside the connector 3, and arc-shaped buckles 6 are hinged on both sides of its circumference. By rotating the arc-shaped buckles 6, they are pressed into the arc-shaped groove 4, so that the connector 3 and the end cap cylinder 5 are connected.
[0032] Specifically, the cylinder 1 serves as the main frame of the device, and a closed water flow channel is formed inside the cylinder 1, providing installation space for the filter element assembly 2. It also guides raw water in, forcing it to flow through the filter element assembly 2 for filtration, and finally discharges purified water. The filter element assembly 2 (containing an ultrafiltration membrane) uses the membrane's sieving action to trap bacteria, colloids, large organic molecules, and other impurities in the water, achieving water purification. It features a detachable connection, facilitating regular removal for cleaning and replacement, preventing filter clogging or decreased filtration efficiency from affecting the water purification effect, and reducing maintenance costs.
[0033] The arc-shaped buckle 6 is hinged to both sides of the end cap cylinder 5 and has a rotating function. The pressing part of the arc-shaped buckle 6 is adapted to the arc-shaped groove 4. After the end cap cylinder 5 is inserted into the connector 3, the positions of the two are adjusted so that the arc-shaped groove 4 corresponds to the arc-shaped buckle 6. Then, the arc-shaped buckle 6 is rotated so that its pressing part gradually fits into the arc-shaped groove 4 until it is pressed tightly into the arc-shaped groove 4, preventing the two from separating axially. This achieves the connection between the end cap cylinder 5 and the connector 3, and thus achieves the quick connection between the end cap cylinder 5 and the cylinder body 1. When disassembly is required, simply rotate the arc-shaped buckle 6 in the opposite direction.
[0034] In traditional technologies, the connection between the end cap and the cylinder 1 is usually achieved using clamps or flanges. However, these connection methods involve cumbersome assembly and disassembly steps, resulting in lengthy replacement and maintenance times for the internal components of the cylinder 1. In this embodiment, by rotating the arc-shaped buckle 6 to press it into the arc-shaped groove 4, the connector 3 is connected to the end cap cylinder 5, thus achieving a quick connection between the end cap cylinder 5 and the cylinder 1. When disassembly is required, simply rotate the arc-shaped buckle 6 in the opposite direction. This connection method simplifies assembly and disassembly steps and effectively saves time on the replacement and maintenance of the internal components of the cylinder 1.
[0035] In this embodiment, the arc-shaped groove 4 and the arc-shaped buckle 6 are matched in an arc shape. When vibration occurs, the arc-shaped buckle 6 will be limited by the groove and will not easily detach on its own. The arc-shaped buckle 6 is made of elastic metal material. The elastic deformation of the arc-shaped buckle 6 will continuously apply axial pressure, so that the arc-shaped buckle 6 always fits the arc-shaped groove 4, offsetting the risk of loosening caused by vibration and pressure fluctuations.
[0036] Example 2:
[0037] See Figures 1 to 5 Based on Embodiment 1, optionally, the end cap cylinder 5 near the connector 3 is provided with a guide groove 7 that allows the arc-shaped buckle 6 to pass through, and the end cap cylinder 5 away from the connector 3 is provided with a rotating cover 8, and a water inlet 9 is provided at the axis of the rotating cover 8.
[0038] Specifically, to facilitate the insertion of the end cap 5 into the connector 3, in this embodiment, a guide groove 7 is provided at the end of the end cap 5 near the connector 3 to allow the arc-shaped buckle 6 to pass through. The guide groove 7 guides the arc-shaped buckle 6 to slide into the arc-shaped groove 4, thus enabling the insertion of the end cap 5. Then, by rotating the cover 8, the end cap 5 is driven to rotate as a whole, causing the arc-shaped buckle 6 to be misaligned with the guide groove 7, thereby preventing the arc-shaped buckle 6 from sliding out of the arc-shaped groove 4 along the guide groove 7. Finally, rotating the arc-shaped buckle 6 to press it tightly into the arc-shaped groove 4 enables a quick connection between the end cap 5 and the cylinder 1.
[0039] Optionally, a positioning block 10 is provided between the rotating cover 7 and the connector 3.
[0040] Specifically, during the insertion of the end cap cylinder 5 into the connector 3, when the end of the connector 3 abuts against the positioning block 10, it indicates that the arc-shaped buckle 6 has moved to the arc-shaped groove 4, forming a one-to-one correspondence. At this point, the insertion of the end cap cylinder 5 can be stopped. The positioning block 10 ensures precise alignment between the arc-shaped buckle 6 and the arc-shaped groove 4, reducing the difficulty of docking and improving docking accuracy.
[0041] Optionally, the connector 3 has a movable hole 11 along its peripheral wall that allows the arc-shaped buckle 6 to rotate, and the arc-shaped buckle 6 is hinged in the movable hole 11; the connector 3 has a hinge seat 12 along its outer periphery, and the arc-shaped buckle 6 is mounted on the hinge seat 12 through a rotating shaft 13.
[0042] Specifically, the arc-shaped buckle 6 achieves rotation through the pivot 13, and the arc-shaped buckle 6 is installed and supported through the hinge seat 12; the arc-shaped buckle 6 is provided with rotation space by setting the movable hole 11, and at the same time, the arc-shaped buckle 6 can be inserted into the arc-shaped groove 4 through the movable hole 11, which facilitates the subsequent pressing action.
[0043] Optionally, the arc-shaped buckle 6 has an unlocking protrusion 14 along its outer periphery, and the arc-shaped buckle 6 is connected to a rotating handle 15.
[0044] Specifically, when disassembly is required, the arc-shaped buckle 6 is rotated in the opposite direction, causing the unlocking protrusion 14 to abut against the arc-shaped groove 4. This disengages the pressing part of the arc-shaped buckle 6 from the arc-shaped groove 4. Then, the end cap cylinder 5 is rotated so that the arc-shaped buckle 6 aligns with the guide groove 7, allowing it to slide out of the arc-shaped groove 4 along the guide groove 7. This separates the end cap cylinder 5 from the connector 3, achieving quick disassembly of the end cap cylinder 5 from the cylinder body 1. Rotating the handle 15 to turn the arc-shaped buckle 6 reduces the difficulty of operation and labor intensity.
[0045] Optionally, the connector 3 has a sealing groove 16 on its inner circumference for installing a sealing ring.
[0046] Specifically, the sealing ring is installed in the sealing groove 16, and the elastic deformation of the sealing ring achieves a reliable seal at the connection point, preventing fluid leakage from the connection.
[0047] Optionally, a limiting ring 17 is provided on the upper inner side of the cylinder 1, and a support ring 18 is provided on the lower inner side of the cylinder 1. The filter element assembly 2 is placed on the support ring 18 and fixed by the limiting ring 17.
[0048] Specifically, the support ring 17 serves as the base of the filter element assembly 2, directly supporting the weight of the filter element and ensuring that the filter element is positioned at a preset height within the cylinder 1, preventing it from sinking or tilting due to gravity or water flow impact. The limiting ring 16 clamps the edge of the filter element assembly from the top of the cylinder, forming a clamping effect with the support ring to prevent the filter element from moving upwards or shifting when impacted by water flow or vibrating the equipment.
[0049] Optionally, a water outlet pipe 19 is threadedly connected to the end of the cylinder 1 away from the end cap cylinder 5, and a water pump 20 is installed on the water outlet pipe 19.
[0050] Specifically, the outlet pipe 19 discharges the purified water filtered by the filter element assembly 2 from the cylinder 1, connecting it to the next cylinder 1 to form a multi-stage filtration system, or directly connecting it to the point of use. The threaded connection facilitates the assembly and disassembly of the outlet pipe from the cylinder 1, making future maintenance and replacement of the outlet pipeline easier. Simultaneously, the threaded connection, combined with sealing tape or a sealing ring, ensures a tight seal at the connection, preventing purified water leakage. The water pump 20 provides continuous power to the water flow through active pressurization, ensuring that the raw water flows smoothly through the filter element and propels the purified water out of the outlet pipe 19.
[0051] The embodiments of this application have been described in detail above with reference to the accompanying drawings, but this application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, and these variations still fall within the protection scope of this application.
Claims
1. An ultrafiltration water purifying apparatus, characterized by comprising: include: Cylinder (1); The filter element assembly (2) is detachably connected inside the cylinder (1); The connector (3) is located at the upper end of the cylinder (1) and has an arc-shaped groove (4) circumferentially arranged around it. The end cap cylinder (5) is fitted inside the connector (3), and arc-shaped buckles (6) are hinged on both sides of its circumference. By rotating the arc-shaped buckles (6), they are pressed into the arc-shaped groove (4) so that the connector (3) and the end cap cylinder (5) are connected.
2. The ultrafiltration water purifier according to claim 1, wherein The end cap cylinder (5) near the connector (3) has a guide groove (7) that allows the arc-shaped buckle (6) to pass through, and the end cap cylinder (5) away from the connector (3) has a rotating cover (8), and the rotating cover (8) has a water inlet (9) at its axis.
3. The ultrafiltration water purifier according to claim 2, wherein A positioning block (10) is provided between the rotating cover (8) and the connector (3).
4. The ultrafiltration water purifier according to claim 3, wherein The connector (3) has an active hole (11) along its peripheral wall that allows the arc-shaped buckle (6) to rotate, and the arc-shaped buckle (6) is hinged in the active hole (11).
5. The ultrafiltration water purifier according to claim 4, wherein The connector (3) has a hinge seat (12) along its outer periphery, and the arc-shaped buckle (6) is installed on the hinge seat (12) through the rotating shaft (13).
6. The ultrafiltration water purifier according to claim 5, wherein The arc-shaped buckle (6) has an unlocking protrusion (14) along its outer periphery, and the arc-shaped buckle (6) is connected to a rotating handle (15).
7. The ultrafiltration water purifier according to claim 6, wherein The connector (3) has a sealing groove (16) on its inner circumference for installing a sealing ring.
8. The ultra filtration water purifier as claimed in claim 1, wherein The upper inner side of the cylinder (1) is provided with a limiting ring (17), and the lower inner side of the cylinder (1) is provided with a support ring (18). The filter element assembly (2) is placed on the support ring (18) and fixed by the limiting ring (17).
9. The ultrafiltration water purifier according to claim 1 or 8, wherein The end of the cylinder (1) away from the end cap cylinder (5) is threadedly connected to a water outlet pipe (19), and a water pump (20) is installed on the water outlet pipe (19).