A filter cartridge fastening assembly for an oil filter
By introducing a combination design of fastening guide rod, fastening seat, fastening pressure plate and adjustment mechanism into the oil filter, the problem of inconvenient fastening and disassembly of filter element is solved, and the stable installation and convenient adjustment of filter element are realized, improving the ease of operation and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUAN JINNUO FILTER EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-29
AI Technical Summary
The existing filter element fastening method of the oil filter makes disassembly and assembly inconvenient, results in poor stability, and requires disassembling the oil filter for fastening and adjustment, which is inconvenient to operate.
The filter element is fastened and adjusted by combining a fastening guide rod, a fastening seat, a fastening pressure plate, and an adjustment mechanism. The fastening and adjustment are achieved through external operation. The fastening guide rod, fastening spring, fastening pressure plate, and adjustment mechanism work together. The external adjustment mechanism consists of an upper support, a lower support, a threaded rod, a threaded sleeve, and a knob, which enables stable installation and convenient disassembly of the filter element.
It enables convenient disassembly and stable installation of the filter element, and the external adjustment operation is simple, which improves the installation stability and adjustment convenience of the filter element.
Smart Images

Figure CN224292729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter element fastening technology, specifically a filter element fastening assembly for an oil filtration machine. Background Technology
[0002] The filter element in an oil filter plays a crucial role in the filtration process, removing impurities such as dust, metal particles, carbon deposits, and soot particles from the oil, thereby protecting the equipment from damage and ensuring its efficient operation. The design and material selection of the filter element significantly impact its filtration effectiveness and lifespan; therefore, choosing a suitable filter element is essential for maintaining the normal operation of the equipment.
[0003] Currently, the filter element of an oil filter is secured inside the filter by springs and pressure plates. While this secures the filter element, the springs are located inside the filter element, and the adjustment of the filter element's tightness is also done inside the filter. Therefore, it is inconvenient to install and remove the filter element, resulting in poor filter element stability. Furthermore, the adjustment requires disassembling the oil filter, which is also inconvenient. Utility Model Content
[0004] The purpose of this invention is to provide a filter element fastening assembly for an oil filtration machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a filter element fastening assembly for an oil filter, comprising a fastening guide rod and a housing. The fastening guide rod is disposed inside the housing, and a fastening seat is provided at the bottom of the fastening guide rod. The bottom of the fastening seat is fixedly installed at the inner bottom of the housing via an adjustment mechanism. An oil filter element is disposed inside the housing, and a filter element skeleton is disposed inside the oil filter element. A lower end plate is provided at the bottom of the oil filter element, and an upper end plate is provided at the top of the oil filter element. A fastening pressure plate is provided on the outer side of the upper end plate, and a through hole is provided on the fastening pressure plate. The fastening pressure plate is disposed on the fastening guide rod, and a fastening spring is sleeved on the fastening guide rod between the fastening pressure plate and the fastening seat. A purification outlet is provided at the bottom of the lower end plate, and the purification outlet passes through the housing. A cover is provided at the top of the housing.
[0006] Preferably, the adjustment mechanism includes an upper support, a lower support, a threaded rod, a threaded sleeve, and a knob. The bottom of the fastening seat is provided with an upper support, the bottom of the outer shell is provided with a lower support, the lower support is provided with a threaded rod, the bottom of the upper support is provided with a threaded sleeve, the lower end of the upper support is located inside the lower support, the threaded sleeve is connected to the threaded rod, and the bottom of the threaded rod passes through the outer shell and is connected to the knob.
[0007] Preferably, a plurality of fastening guide rods, fastening springs and fastening pressure plates are provided in a one-to-one correspondence, and the fastening pressure plates are evenly distributed at equal intervals on the upper end plate.
[0008] Preferably, the bottom of the cover is provided with several limiting seats corresponding to the fastening guide rod, and the upper end of the fastening guide rod is located inside the limiting seat.
[0009] Preferably, the filter element frame is provided with a plurality of evenly spaced components, the filter element frame is arranged in a ring-shaped star structure, and a support frame is provided on the inner side of the filter element frame.
[0010] Preferably, a sealing seat is provided between the lower end plate and the outer casing, a sealing plate is provided at the bottom of the outer casing, the purification outlet passes through the sealing seat and the sealing plate, and a sealing gasket is provided at the bottom of the outer casing above the knob.
[0011] Preferably, the cover is bolted to the top of the outer casing, and a sealing ring is provided between the cover and the outer casing.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The filter element fastening assembly of this oil filter uses a fastening pressure plate on the top end plate of the filter element to cooperate with the fastening seat, fastening guide rod and fastening spring inside the outer shell to achieve external fastening support and installation of the filter element inside the oil filter. The filter element is easy to disassemble and assemble, and the installation is stable and reliable.
[0014] 2. The filter element fastening assembly of this oil filter uses an adjustment mechanism located at the bottom of the fastening seat. The upper support and threaded sleeve at the bottom of the fastening seat cooperate with the lower support, threaded rod, and knob to adjust the height of the fastening seat, that is, to adjust the distance between the fastening pressure plate and the fastening seat and the fastening elasticity of the fastening spring. The fastening adjustment is operated outside the outer shell of the oil filter, making the adjustment operation convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the outer shell structure in this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the oil filter element in this utility model;
[0018] Figure 4 This is a schematic diagram of the fastening base in this utility model;
[0019] Figure 5 This is a schematic diagram of the filter element skeleton in this utility model.
[0020] In the diagram: 1. Fastening guide rod; 2. Fastening spring; 3. Adjusting mechanism; 31. Upper support; 32. Lower support; 33. Threaded rod; 34. Threaded sleeve; 35. Knob; 36. Sealing gasket; 4. Fastening seat; 5. Oil filter element; 6. Lower end plate; 7. Upper end plate; 8. Purification outlet; 81. Sealing plate; 9. Sealing seat; 10. Fastening pressure plate; 11. Filter element frame; 12. Outer shell; 13. Shell cover; 14. Limiting seat. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] like Figures 1 to 5As shown, the filter element fastening assembly of the oil filter in this embodiment includes a fastening guide rod 1 and a housing 12. The fastening guide rod 1 is located inside the housing 12. A fastening seat 4 is provided at the bottom of the fastening guide rod 1. The bottom of the fastening seat 4 is fixedly installed on the inner bottom of the housing 12 through an adjusting mechanism 3. An oil filter element 5 is provided inside the housing 12. A filter element skeleton 11 is provided inside the oil filter element 5. A lower end plate 6 is provided at the bottom of the oil filter element 5. An upper end plate 7 is provided at the top of the oil filter element 5. A fastening pressure plate 10 is provided on the outer side of the upper end plate 7. A through hole is provided on the fastening pressure plate 10. The fastening pressure plate 10 is located on the fastening guide rod 1. A fastening spring 2 is sleeved on the fastening guide rod 1 between the fastening pressure plate 10 and the fastening seat 4. The top of the fastening seat 4 and the fastening pressure plate 10 are connected to the fastening guide rod 1. The bottom of each plate 10 is equipped with a spring hook. The bottom of the fastening spring 2 is fixed to the top of the fastening seat 4 by the spring hook, and the top of the fastening spring 2 is fixed to the bottom of the fastening pressure plate 10 by the spring hook. The fastening spring 2 is easy to install and remove from the fastening seat 4 and the fastening pressure plate 10. The bottom of the lower plate 6 is connected to a purification outlet 8, which passes through the outer shell 12. The top of the outer shell 12 is equipped with a cover 13, which realizes the external fastening support and installation of the oil filter element 5 inside the oil filter. The oil filter element 5 is easy to install and remove, and the installation is stable and reliable. The distance between the fastening pressure plate 10 and the fastening seat 4 and the fastening elasticity of the fastening spring 2 can be adjusted by adjusting the adjustment mechanism 3. The adjustment is operated on the outside of the outer shell 12 of the oil filter, and the adjustment operation is convenient.
[0024] Specifically, the adjustment mechanism 3 includes an upper support 31, a lower support 32, a threaded rod 33, a threaded sleeve 34, and a knob 35. The bottom of the fastening seat 4 is provided with the upper support 31, and the bottom of the outer casing 12 is provided with the lower support 32. The threaded rod 33 is provided inside the lower support 32. The bottom of the upper support 31 is provided with the threaded sleeve 34. The lower end of the upper support 31 is located inside the lower support 32. The threaded sleeve 34 is connected to the threaded rod 33. The bottom of the threaded rod 33 passes through the outer casing 12 and is connected to the knob 35. The two opposite parts inside the lower support 32... Each side is provided with a limiting groove, and each side of the threaded sleeve 34 is provided with a limiting block. The limiting block slides in the limiting groove and limits the threaded sleeve 34. Rotating the knob 35 rotates the threaded rod 33 in the lower support 32, and the threaded sleeve 34 on the threaded rod 33 moves up and down in the lower support 32, causing the upper support 31 to extend and retract inside the lower support 32, thereby adjusting the height of the fastening seat 4, that is, adjusting the distance between the fastening pressure plate 10 and the fastening seat 4 and the fastening elasticity of the fastening spring 2.
[0025] Furthermore, several fastening guide rods 1, fastening springs 2, and fastening pressure plates 10 are provided one-to-one. The fastening pressure plates 10 are evenly distributed at equal intervals on the upper end plate 7, ensuring a balanced and stable fastening installation of the oil filter element 5.
[0026] Furthermore, the bottom of the cover 13 is provided with several limiting seats 14 corresponding to the fastening guide rod 1. The upper end of the fastening guide rod 1 is located inside the limiting seat 14. The adjustment of the fastening guide rod 1 is limited within the limiting seat 14, thereby improving the stability of the fastening guide rod 1 structure.
[0027] Furthermore, the filter element frame 11 is evenly spaced and has a ring-shaped star structure. The inner side of the filter element frame 11 is provided with a support frame, which provides stable support for the oil filter element 5 and strengthens the structural strength of the oil filter element 5.
[0028] Furthermore, a sealing seat 9 is provided between the lower end plate 6 and the outer casing 12, and a sealing plate 81 is provided at the bottom of the outer casing 12. The purification outlet 8 passes through the sealing seat 9 and the sealing plate 81. A sealing gasket 36 is provided at the bottom of the outer casing 12 above the knob 35 to securely install and seal the filter element.
[0029] Furthermore, the cover 13 is bolted to the top of the outer shell 12, and a sealing ring is provided between the cover 13 and the outer shell 12. The cover 13 and the outer shell 12 are sealed together, making disassembly and assembly convenient.
[0030] The usage method of this embodiment is as follows: The oil filter element 5 is installed inside the outer casing 12. The fastening pressure plate 10 on the upper end plate 7 is inserted into the fastening guide rod 1 through the through hole. A fastening spring 2 is sleeved on the fastening guide rod 1. The bottom of the fastening spring 2 is fixed to the top of the fastening seat 4 by a spring hook. The top of the fastening spring 2 is fixed to the bottom of the fastening pressure plate 10 by a spring hook. That is, the fastening spring 2 is fixedly installed between the fastening pressure plate 10 and the fastening seat 4. The elasticity of the fastening spring 2 provides fastening support for the oil filter element 5. The lower end plate 6 at the bottom of the oil filter element 5 is fastened and pressed onto the sealing seat 9. The casing cover 13 is fixedly installed on the top of the outer casing 12 by bolts. The upper end of the fastening guide rod 1 is inserted into the limiting seat 14 at the bottom of the casing cover 13, thereby realizing the external fastening support and installation of the oil filter element 5 inside the oil filter machine. The oil filter element 5 is easy to disassemble and assemble, and the installation is stable and reliable. The filter element skeleton 11 inside the oil filter element 5 filters the oil. Supported by core 5, rotating knob 35 drives the threaded rod 33 inside the lower support 32 to rotate. The threaded sleeve 34 on the threaded rod 33 moves up and down inside the lower support 32, causing the upper support 31 to extend and retract inside the lower support 32, adjusting the height of the fastening seat 4. The upper end of the fastening guide rod 1 is limited to extend and retract inside the limiting seat 14, that is, adjusting the distance between the fastening pressure plate 10 and the fastening seat 4 and the fastening elasticity of the fastening spring 2. The fastening adjustment is performed outside the filter housing 12 through the adjusting mechanism 3, which is convenient. The liquid enters the housing 12 from the upper inlet and flows from the outside to the inside through the filter element 5 for filtration. After filtration, it is discharged from the purification outlet 8. The sealing seat 9 between the lower end plate 6 and the housing 12, the sealing plate 81 at the bottom of the housing 12, and the sealing gasket 36 at the bottom of the housing 12 above the knob 35 are used to seal the fastening installation of the filter element.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A filter element fastening assembly for an oil filter, comprising a fastening guide rod (1) and a housing (12), characterized in that: The fastening guide rod (1) is located inside the outer casing (12). The bottom of the fastening guide rod (1) is provided with a fastening seat (4). The bottom of the fastening seat (4) is fixedly installed on the inner bottom of the outer casing (12) by an adjusting mechanism (3). The outer casing (12) is provided with an oil filter element (5). The oil filter element (5) is provided with a filter element skeleton (11). The bottom of the oil filter element (5) is provided with a lower end plate (6), and the top of the oil filter element (5) is provided with an upper end plate (7). The upper end plate (7) is provided with a fastening pressure plate (10) on its outer side. The fastening pressure plate (10) is provided with a through hole. The fastening pressure plate (10) is provided on the fastening guide rod (1). A fastening spring (2) is sleeved on the fastening guide rod (1) between the fastening pressure plate (10) and the fastening seat (4). The bottom of the lower end plate (6) is connected to a purification outlet (8). The purification outlet (8) passes through the outer shell (12). The top of the outer shell (12) is provided with a shell cover (13).
2. The filter element fastening assembly of the oil filter machine according to claim 1, characterized in that: The adjustment mechanism (3) includes an upper support (31), a lower support (32), a threaded rod (33), a threaded sleeve (34), and a knob (35). The bottom of the fastening seat (4) is provided with an upper support (31), the bottom of the outer shell (12) is provided with a lower support (32), the lower support (32) is provided with a threaded rod (33) inside, the bottom of the upper support (31) is provided with a threaded sleeve (34), the lower end of the upper support (31) is located inside the lower support (32), the threaded sleeve (34) is connected to the threaded rod (33), and the bottom of the threaded rod (33) passes through the outer shell (12) and is connected to the knob (35).
3. The filter element fastening assembly of the oil filter machine according to claim 1, characterized in that: Each of the fastening guide rod (1), fastening spring (2) and fastening pressure plate (10) is provided in a corresponding manner, and the fastening pressure plate (10) is evenly distributed on the upper end plate (7) at equal intervals.
4. The filter element fastening assembly of the oil filter according to claim 1, characterized in that: The bottom of the cover (13) is provided with several limiting seats (14) corresponding to the fastening guide rod (1), and the upper end of the fastening guide rod (1) is located inside the limiting seat (14).
5. The filter element fastening assembly of the oil filter according to claim 1, characterized in that: The filter element frame (11) is evenly spaced and has a number of frames. The filter element frame (11) is arranged in a ring-shaped star structure. The inner side of the filter element frame (11) is provided with a support frame.
6. The filter element fastening assembly of the oil filter according to claim 2, characterized in that: A sealing seat (9) is provided between the lower end plate (6) and the outer shell (12). A sealing plate (81) is provided at the bottom of the outer shell (12). The purification outlet (8) passes through the sealing seat (9) and the sealing plate (81). A sealing gasket (36) is provided at the bottom of the outer shell (12) above the knob (35).
7. The filter element fastening assembly of the oil filter according to claim 1, characterized in that: The cover (13) is bolted to the top of the outer shell (12), and a sealing ring is provided between the cover (13) and the outer shell (12).