Quick-release filter element structure for bypass filter

Abstract

This utility model relates to the field of filter technology, specifically to a quick-release filter element structure for a bypass filter. It includes a cylindrical body with an inlet pipe installed on one side and an outlet pipe installed on the other side. A filter element is installed inside the cylindrical body. A quick-release assembly is installed between the cylindrical body and the outlet pipe for quickly disassembling the filter element. A mating assembly is installed inside the cylindrical body to cooperate with the quick-release assembly for quick disassembly of the filter element. Compared to existing technologies, this application, by setting up the quick-release assembly and the mating assembly, achieves rapid disassembly and assembly, precise positioning, and reliable sealing of the filter element. This not only significantly improves maintenance efficiency and simplifies the operation process but also effectively prevents liquid leakage and filter element misalignment. It has advantages such as compact structure, strong adaptability, and suitability for frequent filter element replacement conditions, significantly improving the practicality and reliability of the bypass filter.

Description

Technical Field

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

[0002] In liquid transport and circulation systems, bypass filters are important components for ensuring liquid cleanliness and extending equipment life. They are widely used in industrial cooling systems, hydraulic systems, lubrication systems, and various applications with high requirements for liquid purity. Existing bypass filters typically adopt a built-in filter element structure, which effectively intercepts and filters solid impurities and particulate contaminants in the liquid during operation, thereby improving the stability and safety of system operation.

[0003] In practical applications, the filter media inside bypass filters often faces serious problems after prolonged use. As the filtration process continues, solid impurities and particulate contaminants in the liquid accumulate on and inside the filter media. These accumulated contaminants gradually clog the pores of the filter media, reducing the filtration area and significantly decreasing the filtration efficiency. Simultaneously, clogged filter media increases the resistance of the liquid passing through the filter, raising system pressure and affecting normal system operation. Furthermore, existing filter replacement methods typically require specialized tools; for example, removing bolts requires wrenches and screwdrivers. For some special snap-fit ​​structures, specialized disassembly tools may be needed. The carrying and use of these specialized tools increases the difficulty and cost of filter replacement, especially in confined spaces and inconvenient operating environments, making filter replacement even more difficult and severely impacting equipment maintenance efficiency and operational continuity. These problems are particularly pronounced under conditions requiring frequent filter replacement. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a quick-release filter element structure for bypass filters, so as to solve the problem of cumbersome and time-consuming filter element replacement operations in traditional methods.

[0005] Based on the above objectives, this utility model provides a quick-release filter element structure for a bypass filter, comprising: a cylindrical body, an inlet pipe installed on one side of the cylindrical body, an outlet pipe installed on the other side of the cylindrical body, and a filter cartridge installed inside the cylindrical body;

[0006] A quick-release assembly is installed between the cylinder and the outlet pipe, and the quick-release assembly is used to quickly disassemble the filter cartridge;

[0007] A fitting component is installed inside the cylinder body and is used to cooperate with a quick-release component to quickly disassemble the filter cartridge.

[0008] Preferably, the quick-release assembly includes a connecting seat installed on one side of the outlet tube, two mating blocks slidably mounted on the connecting seat, a connecting block fixedly mounted on the mating block away from the outlet tube, a locking pin fixedly mounted on the connecting block away from the mating block, a second trigger block fixedly mounted on the locking pin, a plurality of locking heads slidably mounted on the locking pin, and a plurality of locking grooves opened on the side of the cylinder near the outlet tube, the locking grooves being adapted to the locking heads.

[0009] Preferably, the connecting seat has several arc-shaped grooves, and a through hole is formed in each arc-shaped groove, the through hole penetrating the connecting seat. Several limiting posts are slidably inserted into the arc-shaped grooves. A first trigger block is fixedly installed on one side of each limiting post. The first trigger block can slide relative to the connecting seat with the limiting post. The mating block can rotate circumferentially with the connecting seat and slide vertically relative to the connecting seat. The mating block has a mating groove, and the first trigger block is slidably installed in the mating groove.

[0010] Preferably, one side of the lock head abuts against one side of the second trigger block, and several elastic ropes are installed between every two lock heads.

[0011] Preferably, the locking groove expands in the middle and narrows at both ends.

[0012] Preferably, the mating assembly includes a connecting hoop installed on one side of the filter cartridge, a plurality of top posts are fixedly installed on the connecting hoop, and a plurality of sliding grooves are opened in the cartridge body, with the top posts slidably installed in the sliding grooves.

[0013] Preferably, a spring is fixedly installed on one side of the slide groove, a waterproof plate is fixedly installed on the side of the slide groove near the spring, and the limiting post is slidably installed in the slide groove.

[0014] Preferably, a sealing ring is installed inside the cylinder, and one side of the sealing ring abuts against one side of the waterproof plate.

[0015] The beneficial effects of this utility model are:

[0016] 1. This bypass filter uses a quick-release filter element structure. With a quick-release assembly, when the filter cartridge needs to be installed inside the cylinder, the operator first aligns several locking heads on the connecting seat with the locking grooves on the cylinder and slides it axially into the central expansion area of ​​the locking groove. As the pushing operation continues, the operator rotates the connecting seat, causing it to rotate relative to the limiting post and the first trigger block that slide through the arc-shaped groove. The first trigger block then gradually aligns with the mating groove on the mating block and enters a sliding state. During the sliding process, the mating block is guided to rotate circumferentially with the connecting seat while simultaneously generating a vertical movement relative to the connecting seat, thereby causing the connecting block and the locking post to move vertically along the through hole to a certain extent. At this point, several lock heads installed on the locking pin are already located in the expansion area of ​​the lock groove, with a certain expansion space. When the locking pin continues to advance, the second trigger block fixed on it will abut against the inner side of the lock head and squeeze the lock head outward. Under the tension of the elastic rope, the lock head will then spring open to both sides of the lock groove and be braced against the wall of the expansion area, ultimately forming a reliable locking connection between the connecting seat and the cylinder, thus completing the quick assembly and locking of the filter cartridge. In the subsequent disassembly process, the trigger structure is released sequentially by rotating the connecting seat in the opposite direction, and the lock head retracts and exits the lock groove, which can easily realize the quick replacement of the filter cartridge. The entire operation process does not require tool assistance, the structural action is smooth, the locking is reliable, and the efficiency and stability are high.

[0017] 2. This bypass filter uses a quick-release filter cartridge structure. With a matching assembly, when the filter cartridge is installed into the cylinder via the quick-release assembly, the connecting clamp fixed to one side of the filter cartridge is inserted into the cylinder along with the filter cartridge. Several top posts on the connecting clamp align with and slide within the sliding grooves inside the cylinder. During this process, the top posts are guided along a set direction within the sliding grooves, achieving precise guidance and stable positioning of the filter cartridge within the cylinder. An elastic spring is installed inside the sliding groove; as the top posts are gradually inserted, their tail ends compress the springs, creating an elastic pre-tight state, providing continuous clamping force to the filter cartridge and enhancing its fit stability with the cylinder. This also facilitates automatic ejection of the filter cartridge during disassembly by releasing the spring force. To improve replacement efficiency, a waterproof plate is fixed at the end of the chute. When the top column is pushed to its limit position, the end of the connecting hoop will fit against the waterproof plate to form a physical barrier, preventing the filter cartridge from being over-inserted and providing a waterproof seal. In addition, a sealing ring is also provided inside the cartridge. The sealing ring is located on one side of the waterproof plate. After the filter cartridge is pushed into place, its end face abuts against the sealing ring, forming a closed liquid filtration path to prevent liquid from bypassing the filter material or leaking out. The chute also has space for the sliding of the limiting column. The limiting column enters the chute during assembly and further stabilizes the position of the filter cartridge, thereby realizing the reliable guidance, precise positioning, sealing and closure and elastic compression functions of the filter cartridge, ensuring its stable operation and complete sealing during the filtration process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the cylinder and the outlet pipe of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the outlet pipe, connecting seat, and limiting post of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the first trigger block, mating block, and locking pin of this utility model;

[0025] Figure 7 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0026] Figure 8 This is a three-dimensional structural diagram of the connector of this utility model.

[0027] The diagram is marked as follows:

[0028] 1. Cylinder body; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting seat; 5. Filter cartridge; 6. Connecting clamp; 7. Top column; 8. Slide groove; 9. Elastic spring; 10. Waterproof membrane; 11. Sealing ring; 12. Limiting column; 13. First trigger block; 14. Mating block; 15. Mating groove; 16. Connecting block; 17. Locking column; 18. Lock head; 19. Second trigger block; 20. Elastic rope; 21. Arc groove; 22. Through hole; 23. Locking groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] like Figures 1 to 8 As shown, the bypass filter uses a quick-release filter element structure, including: a cylinder 1, an inlet pipe 2 installed on one side of the cylinder 1, an outlet pipe 3 installed on the other side of the cylinder 1, and a filter element 5 installed inside the cylinder 1; a quick-release assembly, which is installed between the cylinder 1 and the outlet pipe 3, and is used to quickly remove the filter element 5; and a mating assembly, which is installed inside the cylinder 1 and is used to cooperate with the quick-release assembly to quickly remove the filter element 5.

[0032] When the filter is running, the liquid to be filtered flows into the cylinder 1 through the inlet pipe 2. Inside the cylinder 1, the liquid first enters the filter cartridge 5, where the filter media effectively traps and filters solid impurities, particles, and other contaminants. The clean liquid flows through the filter cartridge 5 to the outlet pipe 3 and is then output to the next process. Throughout the filtration process, the filter cartridge 5 serves as the main filtration element. Its compact structure and stable filtration efficiency effectively improve liquid cleanliness and extend equipment life. After a period of use, the filter media inside the filter cartridge 5 may become clogged or its filtration efficiency may decrease due to the accumulation of impurities. In this case, the filter cartridge 5 can be re-detached using a quick-release assembly located between the cylinder 1 and the outlet pipe 3. The quick-release assembly features a fast-locking and unlocking mechanism, which, combined with the internal components of the cartridge 1, forms a stable and repeatable connection structure. This allows the filter cartridge 5 to be installed or removed without the need for additional tools, significantly improving maintenance efficiency and reducing the difficulty of manual operation. At the same time, the components provide guiding, limiting, and sealing assistance to the quick-release assembly, ensuring that the filter cartridge 5 maintains good sealing and stability during operation, preventing leakage, and ensuring the continuity and safety of the filtration process. This filter not only has high-efficiency filtration performance but also achieves convenient filter element maintenance, making it suitable for various bypass filtration applications with high requirements for liquid cleanliness.

[0033] like Figure 2 , Figure 3As shown, the quick-release assembly includes a connecting seat 4 installed on one side of the outlet tube 3. Two mating blocks 14 are slidably installed on the connecting seat 4. A connecting block 16 is fixedly installed on the mating block 14 away from the outlet tube 3. A locking pin 17 is fixedly installed on the connecting block 16 away from the mating block 14. A second trigger block 19 is fixedly installed on the locking pin 17. Several locking heads 18 are slidably installed on the locking pin 17. Several locking grooves 23 are opened on the side of the cylinder 1 near the outlet tube 3. The locking grooves 23 are adapted to the locking heads 18. Several arc-shaped grooves 21 are opened on the connecting seat 4. Through holes 22 are opened in the arc-shaped grooves 21. A through hole 22 passes through the connecting seat 4, and several limiting posts 12 slide through the arc-shaped groove 21. A first trigger block 13 is fixedly installed on one side of the limiting post 12. The first trigger block 13 can slide relative to the connecting seat 4 with the limiting post 12. The mating block 14 can rotate circumferentially with the connecting seat 4 and slide vertically relative to the connecting seat 4. A mating groove 15 is opened on the mating block 14, and the first trigger block 13 is slidably installed in the mating groove 15. One side of the lock head 18 abuts against one side of the second trigger block 19. Several elastic ropes 20 are installed between every two lock heads 18. The middle of the lock groove 23 expands and the two ends narrow.

[0034] During the use of the quick-release assembly, when the filter cartridge 5 needs to be installed inside the cylinder 1, first slide the locking head 18 into the locking groove 23 on the cylinder 1. As the pushing operation continues, the operator rotates the connecting seat 4, causing the connecting seat 4 to rotate relative to the limiting post 12 and the first trigger block 13. The limiting post 12 and the first trigger block 13 slide relative to each other in the arc groove 21, thereby causing the first trigger block 13 to gradually move relative to the mating groove 15 on the mating block 14. Since the first trigger block 13 is set with an inclined structure, during its sliding along the mating groove 15, it will guide the mating block 14, which rotates circumferentially with the connecting seat 4, to move vertically relative to the connecting seat 4, thereby causing the connecting block 16 and the locking post 17 to slide vertically along the through hole 22 within a certain range. At this time, if The dry lock head 18 has entered the larger central area of ​​the lock groove 23. Since the lock groove 23 is structured to expand in the middle and narrow at both ends, the lock head 18 has a certain amount of free expansion space in this area. As the lock pin 17 continues to advance, the second trigger block 19 fixed on it will abut and squeeze the inside of the lock head 18, thereby forcing each lock head 18 to spring outward under the tension of the elastic rope 20. The unfolded lock head 18 will fill the central expansion area of ​​the lock groove 23, thereby realizing the quick locking assembly between the connecting seat 4 and the cylinder 1. Through the coordinated action of the above structures, the quick-release assembly can realize the quick assembly and locking of the filter cartridge 5 in the cylinder 1 without the aid of additional tools. The structure is stable and reliable, and the operation is convenient and efficient. It is suitable for bypass filtration application scenarios that require frequent filter replacement.

[0035] like Figures 4 to 8As shown, the assembly includes a connecting clamp 6 installed on one side of the filter cartridge 5, several top posts 7 fixedly installed on the connecting clamp 6, several sliding grooves 8 opened inside the cartridge body 1, and the top posts 7 slidably installed in the sliding grooves 8; a spring spring 9 fixedly installed on one side of the sliding groove 8, a waterproof plate 10 fixedly installed on the side of the sliding groove 8 near the spring spring 9, and a limiting post 12 slidably installed in the sliding groove 8; a sealing ring 11 is installed inside the cartridge body 1, and one side of the sealing ring 11 abuts against one side of the waterproof plate 10.

[0036] When the filter cartridge 5 is installed into the cylinder 1 via the quick-release assembly, the connecting clamp 6 located on one side of the filter cartridge 5 will first be inserted into the cylinder 1 along with the filter cartridge 5. Several top posts 7 fixedly installed on the connecting clamp 6 will align with the sliding groove 8 provided inside the cylinder 1 and slide into it. As the top posts 7 slide along the sliding groove 8, the limiting posts 12 can also be simultaneously guided into the sliding groove 8, further realizing the guidance and positioning of the filter cartridge 5, ensuring accurate installation direction and position matching. As the top posts 7 continue to be inserted, their ends will contact the elastic spring 9 provided inside the sliding groove 8. The elastic spring 9 provides elastic reaction force under compression, effectively improving the tightness of the fit between the filter cartridge 5 and the cylinder 1, enhancing the stability of the overall structure. When the quick-release assembly is used to disassemble it, the elastic spring 9 releases its elastic potential. The filter cartridge 5 can be popped out for easy replacement; at the same time, the waterproof plate 10 provides a blocking and waterproof sealing function to prevent liquid leakage due to vibration or misalignment during filtration; the sealing ring 11 installed inside the cylinder 1 further realizes the sealed closed loop of liquid filtration, preventing impurities from circling the filter cartridge 5 and causing insufficient filtration. Through the coordinated cooperation of components such as the connecting clamp 6, top column 7, slide groove 8, elastic spring 9, waterproof plate 10, sealing ring 11 and limiting column 12, the cooperating components not only realize the rapid positioning and stable guidance of the filter cartridge 5 in the cylinder 1, but also ensure the reliability and sealing performance of the filtration components in the working state through elastic compression and sealing structure. Thus, in conjunction with the quick-release components, the efficient, convenient replacement and stable sealing of the filter cartridge 5 are completed in an integrated installation process.

[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0038] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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 quick-release filter element structure for a bypass filter, characterized in that, include: A cylindrical body (1) is provided with an inlet pipe (2) on one side and an outlet pipe (3) on the other side. A filter cartridge (5) is installed inside the cylindrical body (1). A quick-release assembly is installed between the cylinder (1) and the outlet pipe (3) for quickly disassembling the filter cartridge (5). The fitting component is installed inside the cylinder (1) and is used to quickly disassemble the filter cartridge (5) by cooperating with the quick-release component. The quick-release assembly includes a connecting seat (4) installed on one side of the outlet tube (3). Two mating blocks (14) are slidably installed on the connecting seat (4). A connecting block (16) is fixedly installed on the mating block (14) away from the outlet tube (3). A locking pin (17) is fixedly installed on the connecting block (16) away from the mating block (14). A second trigger block (19) is fixedly installed on the locking pin (17). Several locking heads (18) are slidably installed on the locking pin (17). Several locking grooves (23) are opened on the side of the cylinder (1) near the outlet tube (3). The locking grooves (23) are adapted to the locking heads (18).

2. The quick-release filter element structure for a bypass filter according to claim 1, characterized in that, The connecting seat (4) has several arc-shaped grooves (21), and through holes (22) are provided in the arc-shaped grooves (21). The through holes (22) penetrate the connecting seat (4). Several limiting posts (12) are slidably inserted in the arc-shaped grooves (21). A first trigger block (13) is fixedly installed on one side of the limiting post (12). The first trigger block (13) can slide relative to the connecting seat (4) with the limiting post (12). The mating block (14) can rotate circumferentially with the connecting seat (4) and slide vertically relative to the connecting seat (4). The mating block (14) has a mating groove (15), and the first trigger block (13) is slidably installed in the mating groove (15).

3. The quick-release filter element structure for a bypass filter according to claim 2, characterized in that, One side of the lock head (18) abuts against one side of the second trigger block (19), and several elastic ropes (20) are installed between every two lock heads (18).

4. The quick-release filter element structure for a bypass filter according to claim 1, characterized in that, The middle part of the locking groove (23) expands and the two ends shrink.

5. The quick-release filter element structure for a bypass filter according to claim 2, characterized in that, The fitting assembly includes a connecting hoop (6) installed on one side of the filter cartridge (5), a plurality of top posts (7) are fixedly installed on the connecting hoop (6), and a plurality of sliding grooves (8) are opened in the cylinder (1), and the top posts (7) are slidably installed in the sliding grooves (8).

6. The quick-release filter element structure for a bypass filter according to claim 5, characterized in that, A spring (9) is fixedly installed on one side of the slide groove (8), and a waterproof plate (10) is fixedly installed on the side of the slide groove (8) near the spring (9). The limiting post (12) is slidably installed in the slide groove (8).

7. The quick-release filter element structure for a bypass filter according to claim 6, characterized in that, A sealing ring (11) is installed inside the cylinder (1), and one side of the sealing ring (11) abuts against one side of the waterproof plate (10).

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