A filter with a filter element quick release structure
By using the threaded connection between the filter element and the filter cover and the locking structure of the retaining ring, the problem of complicated filter element disassembly and assembly in traditional filters is solved, enabling quick disassembly and replacement, and improving work efficiency and sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ZHAOBO FILTRATION TECH CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-09
AI Technical Summary
The disassembly and assembly of filter elements in traditional filters are cumbersome and complicated, affecting work efficiency.
The filter element and filter cover are connected by a threaded connecting rod, and the filter cylinder and filter cover are locked together by a fixing ring and fixing bolts. Combined with a sealing ring gasket and a connecting plate, the filter element can be quickly disassembled and assembled and has good sealing performance.
It enables quick disassembly and replacement of filter elements, improves maintenance efficiency, and ensures the sealing performance and filtration effect of the filter.
Smart Images

Figure CN224331659U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration equipment technology, and in particular to a filter with a quick-release filter element structure. Background Technology
[0002] In many fields such as industrial production and water treatment, filters are indispensable key equipment used to remove impurities from liquids and ensure the normal operation of subsequent processes or equipment.
[0003] Some traditional filters include a filter cartridge, a filter cover, and a filter element installed inside the filter cartridge. The filter element is usually directly fixed to the filter cartridge. When the filter element is clogged and needs cleaning and maintenance, the filter cover needs to be removed first, and then the filter element needs to be taken out of the filter cartridge. After the filter element is cleaned, it is put back into the filter cartridge, and then the filter cover is put back on.
[0004] The replacement of filter elements is a rather cumbersome and complicated process. In order to further optimize the disassembly and assembly of filter elements and improve work efficiency, this utility model provides a filter with a quick-release structure for filter elements. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter with a quick-release filter element structure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A filter with a quick-release filter element structure includes a filter cylinder, a filter cover, and a filter element. The filter cover is detachably installed on the upper end of the filter cylinder. The upper end of the filter cover has a threaded hole for installation, and the lower end of the filter cylinder has an outlet groove. The upper end of the filter element has a threaded connecting rod that matches the threaded hole for installation. The threaded connecting rod is threadedly connected to the threaded hole for installation. The lower end of the filter element has an outlet pipe that matches the outlet groove for sealing connection.
[0008] As a further improvement of this utility model, the filter cylinder and the filter cover are locked together by a first fixing ring and a second fixing ring. A connecting plate is fixedly connected to the upper end of the filter cylinder and the lower end of the filter cover. The first fixing ring and the second fixing ring are both provided with fixing grooves that are adapted to the connecting plate. The design of the fixing grooves ensures that the connecting plate can be accurately embedded in the fixing ring, which improves the stability and sealing of the connection. One end of the first fixing ring and the second fixing ring are hinged together, and the other end is connected by a fixing component. This connection method is not only stable and reliable, but also facilitates quick disassembly and assembly, which improves the maintenance efficiency of the device.
[0009] As a further improvement of this utility model, a first fixing block is formed at the end of the first fixing ring, and a connecting hole is formed on the first fixing block; a second fixing block is formed at the end of the second fixing ring, and a fixing threaded hole corresponding to the connecting hole is formed on the second fixing block; the fixing component includes a fixing bolt, one end of which passes through the connecting hole and is threadedly connected to the fixing threaded hole. The threaded connection is not only firm, but also easy to disassemble and install, improving the convenience of operation. The other end is fixedly connected to a handle, and the design of the handle simplifies the disassembly and assembly process.
[0010] As a further improvement of this utility model, a sealing gasket is fixedly connected to one end of each of the two connecting discs. The sealing gasket can effectively prevent liquid leakage at the connection, ensuring the sealing performance of the filter and improving the filtration effect.
[0011] As a further improvement of this utility model, a connecting plate is fixedly connected to the lower end of the filter element. The connecting plate provides a stable support for the connection between the filter element and the filter cartridge, ensuring the stability of the filter element during operation. A sealing gasket is fixedly connected to the lower surface of the connecting plate. The connecting plate presses the sealing gasket and the filter cartridge to form a seal, which enhances the sealing performance between the filter element and the filter cartridge, prevents unfiltered liquid from flowing around the filter element, and ensures the filtration quality.
[0012] As a further improvement of this utility model, an inlet valve pipe is fixedly connected to one side of the filter cylinder, an outlet valve pipe is fixedly connected to the lower end of the filter cylinder, and the upper end of the outlet valve pipe is fixedly connected to the outlet trough.
[0013] As a further improvement of this utility model, the lower end of the filter cylinder is fixedly connected to a support base. There are three support bases, which are arranged in a triangle to enhance the stability of the device.
[0014] The beneficial effects of this utility model are as follows: The upper end of the filter element is threadedly connected to the filter cover via a threaded connecting rod. When cleaning and maintenance are required, the filter element can be removed simultaneously with the filter cover. During cleaning, there is no need to remove the filter element from the filter cover. After cleaning and reinstallation, the filter element can be installed back onto the filter cartridge along with the filter cover. Compared to existing technologies, this reduces the number of disassembly and assembly steps during filter element cleaning and maintenance, enabling quick assembly and disassembly and improving work efficiency. Furthermore, the threaded connection between the filter element and the filter cover allows for easy removal and quick replacement of the damaged filter element. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a filter with a quick-release filter element structure proposed in this utility model.
[0016] Figure 2This is a schematic diagram of the disassembled structure of a filter with a quick-release filter element proposed in this utility model.
[0017] Figure 3 This is a cross-sectional structural diagram of a filter with a quick-release filter element proposed in this utility model.
[0018] In the diagram: 1. Filter cartridge, 2. Filter cover, 3. First fixing ring, 4. Mounting threaded hole, 5. Threaded connecting rod, 6. Filter element, 7. Outlet groove, 8. Outlet pipe, 9. Second fixing ring, 10. First fixing block, 11. Second fixing block, 12. Fixing threaded hole, 13. Fixing bolt, 14. Handle, 15. Connecting plate, 16. Fixing groove, 17. Sealing ring gasket, 18. Connecting plate, 19. Sealing gasket, 20. Inlet valve pipe, 21. Outlet valve pipe, 22. Support base. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figures 1-3 A filter with a quick-release filter element structure includes a filter cylinder 1, a filter cover 2, and a filter element 6. The filter cover 2 is detachably installed on the upper end of the filter cylinder 1. The upper end of the filter cover 2 has a threaded hole 4, and the lower end of the filter cylinder 1 has an outlet groove 7. The upper end of the filter element 6 has a threaded connecting rod 5 that matches the threaded hole 4. The threaded connecting rod 5 is threadedly connected to the threaded hole 4. The lower end of the filter element 6 has an outlet pipe 8 that matches the outlet groove 7. The outlet pipe 8 is sealed and inserted into the outlet groove 7.
[0021] In this embodiment of the utility model, the filter cylinder 1 and the filter cover 2 are locked together by a first fixing ring 3 and a second fixing ring 9. A connecting plate 15 is fixedly connected to the upper end of the filter cylinder 1 and the lower end of the filter cover 2. The first fixing ring 3 and the second fixing ring 9 are both provided with fixing grooves 16 that are adapted to the connecting plate 15. The fixing grooves are trapezoidal in shape, which can ensure that the connecting plate can be accurately embedded in the fixing grooves 16 of the fixing rings. As the first fixing ring 3 and the second fixing ring 9 are locked together, the filter cylinder 1 and the filter cover 2 are forced to press against each other to form a tight fit, which improves the stability and sealing of the connection.
[0022] The first fixing ring 3 and the second fixing ring 9 are hinged at one end and connected at the other end by a fixing component. The hinged end serves as the rotation fulcrum, and the fixing component at the other end serves as the locking end, forming a complete closed system. The hinge connection makes the opening and closing of the first fixing ring 3 and the second fixing ring 9 more convenient, facilitating daily maintenance and filter replacement.
[0023] A first fixing block 10 is formed at the end of the first fixing ring 3, and a connecting hole is formed on the first fixing block 10. A second fixing block 11 is formed at the end of the second fixing ring 9, and a fixing threaded hole 12 corresponding to the connecting hole is formed on the second fixing block 11. The fixing assembly includes a fixing bolt 13. One end of the fixing bolt 13 passes through the connecting hole and is threadedly connected to the fixing threaded hole 12. The other end is fixedly connected to a handle 14. The fixing bolt 13 can lock the second fixing block 11 and the first fixing block 10 together to form a complete locking mechanism. The threaded connection of the fixing bolt 13 provides an adjustable locking force, which is convenient for equipment assembly and maintenance. The handle 14 on the fixing bolt 13 is designed to facilitate the operator to apply torque.
[0024] Each of the two connecting discs 15 has a sealing gasket 17 fixedly connected to one end of its opposite side. The sealing gasket 17 is made of corrosion-resistant elastic material and forms a double sealing barrier under pressure.
[0025] A connecting plate 18 is fixedly connected to the lower end of the filter element 6. A sealing gasket 19 is fixedly connected to the lower surface of the connecting plate 18. The connecting plate 18 presses the sealing gasket and the filter element to form a seal. This pressing and sealing structure can effectively prevent liquid bypass and ensure the filtration effect.
[0026] A water inlet valve pipe 20 is fixedly connected to one side of the filter cylinder 1, and a water outlet valve pipe 21 is fixedly connected to the lower end of the filter cylinder 1. The upper end of the water outlet valve pipe 21 is fixedly connected to the outlet groove 7. A support base 22 is fixedly connected to the lower end of the filter cylinder 1. There are three support bases 22, and the three support bases 22 adopt a triangular support layout to provide stable mechanical support.
[0027] During assembly of this embodiment, the threaded connecting rod 5 at the upper end of the filter element 6 is first screwed into the mounting threaded hole 4 at the upper end of the filter cover 2 to complete the connection between the filter element 6 and the filter cover 2. Then, the filter cover 2 together with the filter element 6 is installed onto the filter cylinder 1. The outlet pipe 8 at the lower end of the filter element 6 is inserted into the outlet groove 7 at the lower end of the filter cylinder 1. The connecting plate at the lower end of the filter cover 2 is aligned with the connecting plate at the upper end of the filter cylinder 1. Next, the fixing grooves 16 of the first fixing ring 3 and the second fixing ring 9 are aligned with the connecting plates 15 at the upper end of the filter cylinder 1 and the lower end of the filter cover 2. The second fixing ring 9 and the first fixing ring 3 are closed by hinges. Then, the fixing bolt 13 on one side of the first fixing ring 3 is screwed into the fixing threaded hole 12 on one side of the second fixing ring 9. The handle 14 at one end of the fixing bolt 13 is used to lock the first fixing ring 3 and the second fixing ring 9, forcing the filter cylinder 1 and the filter cover 2 to remain tightly connected.
[0028] During filtration, the liquid enters the filter cylinder 1 through the inlet valve pipe 20 on one side of the filter cylinder 1. Inside the filter cylinder 1, it is filtered by the filter element 6, and impurities are intercepted. The pure liquid flows into the outlet groove 7 through the outlet pipe 8 at the lower end of the filter element 6, and then enters the outlet valve pipe 21 from the outlet groove 7 and is discharged from the filter to complete the filtration.
[0029] After a period of filtration, a large amount of pollutants will be adsorbed on the surface of the filter element 6, so it needs to be disassembled and cleaned. First, unscrew the fixing bolt 13 by using the handle 14 to open the first fixing ring and the second fixing ring. Then, remove the filter cover 2 and take the filter element 6 out with it. The filter element 6 does not need to be removed from the filter cover 2, and the surface of the filter element 6 can be directly brushed. After the surface of the filter element 6 is clean, the filter cover 2 and the filter element 6 can be reinstalled on the filter cylinder 1.
[0030] If the filter element 6 needs to be replaced due to damage or other faults after repeated use and cleaning, after the filter cover 2 and the filter element 6 are removed from the filter cylinder 1 together, the threaded connecting rod 5 is unscrewed from the mounting threaded hole 4 by rotation to remove the old filter element. Then, the threaded connecting rod 5 at the upper end of the new filter element is screwed into the mounting threaded hole 4 to complete the replacement. Finally, the filter cover 2 is reinstalled on the filter cylinder 1 according to the assembly process and fixed with the first fixing ring 3 and the second fixing ring 9 to restore the filter to work.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A filter with a quick-release filter element structure, comprising a filter cylinder (1), a filter cover (2), and a filter element (6), wherein the filter cover (2) is detachably installed on the upper end of the filter cylinder (1); Its features are, The filter cover (2) has an installation threaded hole (4) at the upper end, the filter cylinder (1) has an outlet groove (7) at the lower end, the filter element (6) has a threaded connecting rod (5) that matches the installation threaded hole (4) at the upper end, the threaded connecting rod (5) is threadedly connected to the installation threaded hole (4), and the filter element (6) has an outlet pipe (8) that matches the outlet groove (7) at the lower end, the outlet pipe (8) and the outlet groove (7) are sealed and inserted together.
2. A filter with a quick-release filter element structure according to claim 1, characterized in that, The filter cylinder (1) and the filter cover (2) are locked together by a first fixing ring (3) and a second fixing ring (9). The upper end of the filter cylinder (1) and the lower end of the filter cover (2) are both fixedly connected to a connecting plate (15). The first fixing ring (3) and the second fixing ring (9) are both provided with a fixing groove (16) that matches the connecting plate (15). One end of the first fixing ring (3) and the second fixing ring (9) are hinged together, and the other end is connected by a fixing component.
3. A filter with a quick-release filter element structure according to claim 2, characterized in that, The first fixing ring (3) has a first fixing block (10) at its end, and a connecting hole is formed on the first fixing block (10). The second fixing ring (9) has a second fixing block (11) at its end, and a fixing threaded hole (12) corresponding to the connecting hole is formed on the second fixing block (11). The fixing component includes a fixing bolt (13), one end of which passes through the connecting hole and is threadedly connected to the fixing threaded hole (12), and the other end is fixedly connected to a handle (14).
4. A filter with a quick-release filter element structure according to claim 2, characterized in that, Each of the two connecting discs (15) has a sealing gasket (17) fixedly connected to one end facing the other.
5. A filter with a quick-release filter element structure according to claim 1, characterized in that, The filter element (6) is fixedly connected to a connecting plate (18) at its lower end. A sealing gasket (19) is fixedly connected to the lower surface of the connecting plate (18). The connecting plate (18) presses the sealing gasket and the filter cartridge together to form a seal.
6. A filter with a quick-release filter element structure according to claim 1, characterized in that, A water inlet valve pipe (20) is fixedly connected to one side of the filter cylinder (1), a water outlet valve pipe (21) is fixedly connected to the lower end of the filter cylinder (1), and the upper end of the water outlet valve pipe (21) is fixedly connected to the outlet trough (7).
7. A filter with a quick-release filter element structure according to claim 1, characterized in that, The lower end of the filter cartridge (1) is fixedly connected to a support base (22), and there are three support bases (22).