Filter element end cover with anti-falling structure
By designing anti-detachment components and auxiliary components on the filter element end cap, the problem of media leakage caused by loose end caps is solved, achieving a firm connection and convenient disassembly of the end caps.
Patent Information
- Application Number
- CN202520351969.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing filter element end caps are prone to loosening during long-term use, leading to media leakage and poor connection stability.
It adopts anti-detachment components, including structures such as rings, buckles and U-shaped brackets, which connect and fix the end cap and the cylinder through snap-fit connection, and combined with the auxiliary components of sliding connection, it is easy to disassemble and replace.
It improves the robustness of the end cap, prevents media leakage, and facilitates the removal of the end cap and the replacement of the anti-detachment component.
Smart Images

Figure CN223861494U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, specifically a filter end cap with an anti-detachment structure. Background Technology
[0002] Filter element is a professional term for filtration and purification function. Filter elements are mainly used in filtration industries such as oil filtration, air filtration, and water filtration. Filter elements separate solid particles from liquids or gases, or allow different substances to come into full contact and accelerate the reaction time. This can protect the normal operation of equipment or ensure the cleanliness of the air. Currently, the lower and upper end caps on the outside of the filter element are generally sealed using a threaded connection with an end face seal.
[0003] When existing filter cartridge end caps are connected by a screw, changes in the flow rate or volume of liquid or gas passing through the filter cartridge during long-term use will alter the internal pressure on the filter cartridge end cap. This will cause the filter medium to repeatedly push the end cap, causing it to loosen and rotate. The end cap connection will be less secure, and the medium will easily leak from the connection between the end cap and the cylinder, resulting in media waste. Utility Model Content
[0004] The purpose of this invention is to provide a filter cartridge end cap with an anti-detachment structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A filter cartridge end cap with an anti-detachment structure includes:
[0007] An end cap is movably provided at the upper end of the outer surface of the cylinder;
[0008] An anti-detachment component is movably mounted on one side of the end cap. The anti-detachment component includes a ring movably mounted on one side of the end cap. Multiple No. 1 buckles are fixedly installed at equal angles on the outer surface of the ring. Multiple No. 2 buckles are fixedly installed at equal angles on the outer surface of the ring. Multiple U-shaped brackets are fixedly installed at equal angles on the outer surface of the cylinder.
[0009] The auxiliary component is movably sleeved on the outside of the cylinder.
[0010] Furthermore, the upper outer end of the cylinder is fixedly provided with a thread, the end cap is screwed into the thread, the inside of the cylinder is provided with a filter element, the lower end of the cylinder is fixedly provided with a discharge port, and a material distribution plate is fixedly installed on one side of the inner surface of the end cap.
[0011] Furthermore, multiple positioning rods are fixedly installed at equal angles on one side surface of the end cap, and multiple positioning holes are opened at equal angles on one side surface of the ring, with the positioning rods movably inserted into the positioning holes at corresponding positions.
[0012] Furthermore, the first buckle is movably engaged with the U-shaped card seat, and the second buckle is movably engaged with one end of the end cap.
[0013] Furthermore, the auxiliary components include:
[0014] The limiting ring is fixedly installed on the outer surface of the cylinder.
[0015] The collar is movably fitted onto the outside of the cylinder.
[0016] Preferably, multiple No. 1 push plates are fixedly installed at equal angles on one side surface of the collar, and multiple No. 2 push plates are fixedly installed at equal angles on one side surface of the collar.
[0017] Preferably, a sliding rod is fixedly installed at equal angles on the other side surface of the collar, and a sliding hole is opened at equal angles on one side surface of the limiting ring, and the sliding rod is slidably connected to the sliding hole at the corresponding position.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. By pressing the ring, fix the ring to the end cap. Through the insertion of the positioning hole and the positioning rod, the ring is installed in a fixed position on one side of the end cap. The first buckle is engaged with the U-shaped bracket, and the second buckle is engaged with the edge of the end cap to limit and fix the end cap and the cylinder, prevent the end cap from loosening and falling off, improve the firmness of the end cap, and prevent the medium from leaking out.
[0020] 2. By sliding the sliding rod and the sliding hole, the collar can only slide along the direction of the sliding rod along the cylinder. The first push plate abuts against the second buckle, and one end of the second buckle is flipped outward to separate from one end of the end cap. At the same time, the second push plate abuts against the first buckle, and one end of the first buckle is flipped outward to separate from the U-shaped seat. The ring, the first buckle, and the second buckle are then disassembled, which facilitates the disassembly of the end cap and the replacement of the anti-detachment component, thus maintaining the anti-detachment effect of the end cap. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the overall disassembled structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the overall vertical cross-sectional structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the overall side sectional structure of this utility model;
[0025] Figure 5This is a schematic diagram of the vertical cross-sectional structure of the anti-detachment component and auxiliary component in this utility model.
[0026] In the diagram: 1. Cylinder; 101. Thread; 102. End cap; 103. Filter element; 104. Discharge port; 105. Distributor plate; 2. Anti-detachment component; 201. Ring; 202. No. 1 buckle; 203. No. 2 buckle; 204. Positioning rod; 205. Positioning hole; 206. U-shaped bracket; 3. Auxiliary component; 301. Limiting ring; 302. Collar; 303. No. 1 push plate; 304. No. 2 push plate; 305. Slide rod; 306. Slide hole. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1-5 In this embodiment of the present invention, a filter element end cap with an anti-detachment structure includes an end cap 102 movably disposed at the upper end of the outer surface of a cylindrical body 1, a thread 101 fixedly disposed at the upper end of the outer surface of the cylindrical body 1, the end cap 102 being screwed into the thread 101, a filter element 103 disposed inside the cylindrical body 1, a discharge port 104 fixedly disposed at the lower end of the cylindrical body 1, a material distribution plate 105 fixedly installed on one side of the inner surface of the end cap 102, an anti-detachment component 2 movably disposed on one side of the end cap 102, the anti-detachment component 2 including a ring 201 movably disposed on one side of the end cap 102, a plurality of first buckles 202 fixedly installed at equal angles on the outer surface of the ring 201, a plurality of second buckles 203 fixedly installed at equal angles on the outer surface of the ring 201, a plurality of U-shaped brackets 206 fixedly installed at equal angles on the outer surface of the cylindrical body 1, and an auxiliary component 3 movably sleeved on the outer side of the cylindrical body 1.
[0029] Specifically, after the filter element 103 is placed inside the cylinder 1, the end cap 102 is screwed on by the thread 101 to fix the end cap 102, and the material distribution plate 105 is pressed against the filter element 103 to fix it. Then, the end cap 102 is fixed by the anti-detachment component 2, and the auxiliary component 3 makes the anti-detachment component 2 easy to disassemble and replace.
[0030] Example 1
[0031] like Figure 2-4 As shown, in this embodiment, multiple positioning rods 204 are fixedly installed at equal angles on one side surface of the end cap 102, and multiple positioning holes 205 are opened at equal angles on one side surface of the ring 201. The positioning rods 204 are movably inserted into the positioning holes 205 at the corresponding positions.
[0032] In this embodiment, pressing the ring 201 fixes the ring 201 to the end cap 102. By inserting the positioning hole 205 and the positioning rod 204, the ring 201 is installed in a fixed position on one side of the end cap 102, so that the first buckle 202 can lock the U-shaped card seat 206.
[0033] like Figure 2 As shown, in this embodiment, the first buckle 202 is movably engaged with the U-shaped bracket 206, and the second buckle 203 is movably engaged with one end of the end cap 102.
[0034] In practice, the first buckle 202 is engaged with the U-shaped bracket 206, and the second buckle 203 is engaged with the edge of the end cover 102 to limit and fix the end cover 102 and the cylinder 1, thereby preventing the end cover 102 from loosening and falling off, improving the firmness of the end cover 102 and preventing the medium from leaking out.
[0035] Example 2
[0036] Based on Example 1, in order to compensate for the problem that buckles 202 and 203 are easily damaged by repeated bending, resulting in a decrease in the locking effect.
[0037] like Figure 4 and Figure 5 As shown, in this embodiment, the auxiliary component 3 includes: a limiting ring 301 fixedly installed on the outer surface of the cylinder 1, and a collar 302 movably sleeved on the outer side of the cylinder 1; a plurality of first push plates 303 are fixedly installed at equal angles on one side surface of the collar 302, and a plurality of second push plates 304 are fixedly installed at equal angles on one side surface of the collar 302; a sliding rod 305 is fixedly installed at equal angles on the other side surface of the collar 302, and a sliding hole 306 is opened at equal angles on one side surface of the limiting ring 301, and the sliding rod 305 is slidably connected to the sliding hole 306 at the corresponding position.
[0038] In specific implementation, through the sliding connection of the slide rod 305 and the sliding hole 306, the collar 302 can only slide along the direction of the slide rod 305 along the cylinder 1, so that the first push plate 303 abuts against the second buckle 203, flipping one end of the second buckle 203 outward and separating it from one end of the end cover 102. Then, the second push plate 304 abuts against the first buckle 202, flipping one end of the first buckle 202 outward and separating it from the U-shaped seat 206. The ring 201, the first buckle 202, and the second buckle 203 are disassembled. By pushing the first buckle 202 and the second buckle 203 to flip, they are quickly separated from the end cover 102 and the cylinder 1, which facilitates the disassembly of the end cover 102 and the replacement of the anti-detachment component 2, thus maintaining the anti-detachment effect of the end cover 102.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A filter cartridge end cap with an anti-detachment structure, characterized in that, include: An end cap (102) is movable on the upper part of the outer surface of the cylinder (1); The anti-detachment component (2) is movably disposed on one side of the end cap (102). The anti-detachment component (2) includes a ring (201) movably disposed on one side of the end cap (102). Multiple first buckles (202) are fixedly installed at equal angles on the outer surface of the ring (201). Multiple second buckles (203) are fixedly installed at equal angles on the outer surface of the ring (201). Multiple U-shaped brackets (206) are fixedly installed at equal angles on the outer surface of the cylinder (1). The auxiliary component (3) is movably sleeved on the outside of the cylinder (1).
2. The filter element end cap with an anti-detachment structure according to claim 1, characterized in that, A thread (101) is fixedly provided at the upper outer side of the cylinder (1), and the end cap (102) is screwed into the thread (101). A filter element (103) is provided inside the cylinder (1), and a discharge port (104) is fixedly provided at the lower end of the cylinder (1). A material distribution plate (105) is fixedly installed on one side of the inner surface of the end cap (102).
3. The filter element end cap with an anti-detachment structure according to claim 1, characterized in that, Multiple positioning rods (204) are fixedly installed at equal angles on one side surface of the end cap (102), and multiple positioning holes (205) are opened at equal angles on one side surface of the ring (201). The positioning rods (204) are movably inserted into the positioning holes (205) at the corresponding positions.
4. The filter element end cap with an anti-detachment structure according to claim 1, characterized in that, The first buckle (202) is movably engaged with the U-shaped bracket (206), and the second buckle (203) is movably engaged with one end of the end cap (102).
5. The filter element end cap with an anti-detachment structure according to claim 1, characterized in that, The auxiliary component (3) includes: A limiting ring (301) is fixedly installed on the outer surface of the cylinder (1); The collar (302) is movably sleeved on the outside of the cylinder (1).
6. The filter element end cap with an anti-detachment structure according to claim 5, characterized in that, Multiple first-stage push plates (303) are fixedly installed at equal angles on one side surface of the collar (302), and multiple second-stage push plates (304) are fixedly installed at equal angles on one side surface of the collar (302).
7. The filter element end cap with an anti-detachment structure according to claim 6, characterized in that, A sliding rod (305) is fixedly installed at equal angles on the other side surface of the collar (302), and a sliding hole (306) is opened at equal angles on one side surface of the limiting ring (301). The sliding rod (305) is slidably connected to the sliding hole (306) at the corresponding position.