An activated carbon filter element that is convenient to fill
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU JIESEN PURIFICATION EQUIP CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-26
AI Technical Summary
The existing activated carbon filter cartridges are fixed by hot-melt welding of the inlet end cap during assembly, which makes it impossible to replace the activated carbon inside the outer shell separately during maintenance. The entire cartridge must be replaced, which increases maintenance costs.
The design incorporates a connecting ring, connecting block, mounting block, fixing ring, fixing insert, and sliding insert rod, allowing for the removal of the inlet end cap and individual replacement of the activated carbon filter media. The threaded ring and threaded groove ensure stability, and the replacement of the spring prevents the effects of aging.
This achieves cost savings in the maintenance of activated carbon filter elements, ensures that the filter element housing remains undamaged and can continue to be used, and reduces maintenance difficulty and cost.
Smart Images

Figure CN224279836U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of activated carbon filter technology, specifically relating to an activated carbon filter that is easy to fill. Background Technology
[0002] Activated carbon filter cartridges typically consist of an outer shell and an inner layer of activated carbon. They are filtration devices that utilize the adsorption and filtration properties of activated carbon to remove impurities, odors, pigments, and harmful gases from fluids.
[0003] When activated carbon filter cartridges are used in water treatment, operators connect the end caps at both ends of the outer casing to the water pipes. Water then flows into the casing, where the activated carbon inside adsorbs and filters the water. However, activated carbon filter cartridges require regular maintenance and replacement. In some cases, the inlet end caps are fixed to the outer casing via hot-melt welding during assembly. This means that when maintaining or replacing the filter cartridge, operators cannot replace the activated carbon inside the casing individually; they must replace the entire filter cartridge, rendering the undamaged casing unusable. This increases maintenance costs and causes inconvenience in using activated carbon filter cartridges.
[0004] Therefore, this invention provides an activated carbon filter element that is easy to fill, in order to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide an activated carbon filter element that is easy to fill, in order to solve the problem that in the prior art, when assembling some activated carbon filter elements, the water inlet cap on the activated carbon filter element is fixed to the outer shell by hot-melt welding. As a result, when operators maintain and replace the activated carbon filter element, they cannot replace the activated carbon inside the outer shell separately, but can only replace the entire activated carbon filter element. The undamaged outer shell cannot be reused, which leads to high maintenance costs and inconvenience in the use of activated carbon filter elements.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an easily filled activated carbon filter element, comprising a filter element housing, an outlet end cap fixedly connected to the bottom surface of the filter element housing, and the top surface of the filter element housing in contact with the bottom surface of the inlet end cap. Filter sponges are connected to the inner surfaces of both the outlet and inlet end caps. Activated carbon filter media is filled inside the filter element housing. A connecting ring is connected to the outer surface of the inlet end cap, and connecting blocks are symmetrically connected to the outer surface of the connecting ring. One end of each connecting block is slidably inserted into a connecting groove, which is located on the top surface of a mounting block. The mounting blocks are symmetrically connected to the outer surface of a fixing ring, which is connected to the outer surface of the top end of the filter element housing. A slot is provided on the front surface of the mounting block, and a fixing block is slidably connected inside the slot. One end of the fixing block is connected through a limiting hole, which is located through the front surface of the bottom end of the connecting block.
[0007] As a preferred embodiment of the activated carbon filter element of this utility model that is easy to fill, an insertion hole is provided on the top surface of one end of the fixed insertion block, and one end of the sliding insertion rod is slidably inserted into the insertion hole.
[0008] As a preferred embodiment of the activated carbon filter element for easy filling according to this utility model, the other end of the sliding insert is connected to a vertical block, the vertical block is connected to the top surface of the mounting block, and a spring is provided inside the vertical block through which the sliding insert passes.
[0009] As a preferred embodiment of the activated carbon filter element of this utility model that is easy to fill, the inner surface of the connecting ring is connected with two sets of sealing rings, one end of the sealing ring is engaged in the sealing groove, and the sealing groove is opened on the outer surface of the top of the fixing ring.
[0010] As a preferred embodiment of the activated carbon filter element for easy filling according to this utility model, the bottom surface of the block is connected with a threaded ring, and the other end of the threaded ring is connected to a threaded groove, which is opened on the top surface of the mounting block.
[0011] As a preferred embodiment of the activated carbon filter element of this utility model that is easy to fill, the outer surface of the block is connected with protrusions in a ring array.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes the interplay of a connecting ring, connecting block, mounting block, fixing ring, fixing insert, and sliding rod. When the activated carbon filter cartridge requires maintenance or replacement, the operator pulls the sliding rod, causing one end of the sliding rod to separate from the fixing insert. Then, the fixing insert is pulled out of the slot, causing one end of the fixing insert to separate from the limiting hole on the connecting block. This allows the connecting block to separate from the mounting block, enabling the operator to remove the inlet cap without tools. This facilitates the cleaning and refilling of the activated carbon filter media within the filter cartridge housing, allowing for independent maintenance and replacement of the activated carbon filter media. This ensures continued use of the filter cartridge without damage to the housing, thus saving on the maintenance costs of the activated carbon filter cartridge.
[0014] This invention utilizes the interplay of a threaded ring, a threaded groove, and a protrusion. When the spring in the vertical block ages and becomes ineffective, the vertical block can be turned to allow the threaded ring to rotate within the threaded groove, separating the threaded ring from the groove. At this point, the vertical block can be disassembled for maintenance and replacement, thus ensuring the effectiveness of the spring in the vertical block and preventing spring aging from affecting the stability of the sliding rod after insertion. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0018] Figure 3 This is a partial bottom view of the structure of the water inlet cap of this utility model;
[0019] Figure 4 This is a partial cross-sectional exploded structural diagram of the mounting block of this utility model.
[0020] In the diagram: 1. Filter cartridge housing; 2. Outlet end cap; 3. Inlet end cap; 4. Filter sponge; 5. Activated carbon filter media; 6. Connecting ring; 7. Connecting block; 8. Connecting groove; 9. Mounting block; 10. Fixing ring; 11. Slot; 12. Fixing insert; 13. Limiting hole; 14. Insertion hole; 15. Sliding insert rod; 16. Stand block; 17. Spring; 18. Sealing ring; 19. Sealing groove; 20. Threaded ring; 21. Threaded groove; 22. Protrusion. 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] Please see Figures 1-4 The present invention provides the following technical solution: an activated carbon filter element that is easy to fill, comprising a filter element housing 1, an outlet end cap 2 fixedly connected to the bottom surface of the filter element housing 1, and the top surface of the filter element housing 1 in contact with the bottom surface of the inlet end cap 3, filter sponges 4 connected to the inner surfaces of the outlet end cap 2 and the inlet end cap 3, activated carbon filter media 5 filled inside the filter element housing 1, a connecting ring 6 connected to the outer surface of the inlet end cap 3, connecting blocks 7 symmetrically connected to the outer surface of the connecting ring 6, one end of the connecting block 7 slidingly inserted into the connecting groove 8, the connecting groove 8 being opened on the top surface of the mounting block 9, the mounting block 9 being symmetrically connected to the outer surface of the fixing ring 10, the fixing ring 10 being connected to the outer surface of the top end of the filter element housing 1, a slot 11 being opened on the front surface of the mounting block 9, a fixing insert 12 being slidably connected inside the slot 11, one end of the fixing insert 12 being connected through a limiting hole 13, the limiting hole 13 being opened through the front surface of the bottom end of the connecting block 7.
[0023] Preferably, a socket 14 is provided on the top surface of one end of the fixed plug 12, and one end of the sliding plug 15 is slidably inserted into the socket 14.
[0024] In practical use, when one end of the connecting ring 6 on the outside of the water inlet cap 3 is sleeved on the fixing ring 10, the connecting block 7 connected to the outside of the connecting ring 6 will slide into the connecting groove 8 on the mounting block 9. At this time, the fixing plug 12 is inserted into the slot 11 through the limiting hole 13 on the connecting block 7, so that the position of the insertion hole 14 on the fixing plug 12 will move to the position of the sliding plug 15. Then, one end of the sliding plug 15 is inserted into the slot 11, which can fix the position of the fixing plug 12. At this time, the fixing plug 12 can fix one end of the connecting block 7 in the mounting block 9, so that the position of the water inlet cap 3 is fixed on the top of the filter cartridge housing 1.
[0025] Preferably, the other end of the sliding rod 15 is connected to a vertical block 16, the vertical block 16 is connected to the top surface of the mounting block 9, and the vertical block 16 is provided with a spring 17 that is passed through by the sliding rod 15.
[0026] In practical use, the sliding rod 15 can slide in the upright block 16. When the sliding rod 15 slides, it can elastically extend and retract in the upright block 16 through the spring 17. By pulling the sliding rod 15 to compress the spring 17, one end of the sliding rod 15 can be retracted into the mounting block 9. When the fixed block 12 passes through the limiting hole 13 on the connecting block 7 and is inserted into the slot 11, the position of the insertion hole 14 on the fixed block 12 will move to the position of the sliding rod 15. At this time, the sliding rod 15 can be released, and the spring 17 can elastically push one end of the sliding rod 15 into the slot 11, thereby fixing the position of the fixed block 12.
[0027] Preferably, the inner surface of the connecting ring 6 is connected to two sets of sealing rings 18, one end of the sealing ring 18 is engaged in the sealing groove 19, and the sealing groove 19 is opened on the outer surface of the top of the fixing ring 10.
[0028] In practical use, when the bottom surface of the inlet cap 3 contacts the top surface of the filter cartridge housing 1, the bottom end of the connecting ring 6 will be sleeved on the outside of the fixing ring 10. At this time, the sealing ring 18 on the inner side of the connecting ring 6 will move to the sealing groove 19, allowing the sealing ring 18 to be elastically engaged in the sealing groove 19, thereby increasing the sealing between the connecting ring 6 and the fixing ring 10 and preventing the flowing water from escaping from the gap between the connecting ring 6 and the fixing ring 10.
[0029] Preferably, a threaded ring 20 is connected to the bottom surface of the stand block 16, and the other end of the threaded ring 20 forms a threaded connection with the threaded groove 21, which is opened on the top surface of the mounting block 9.
[0030] In practical use, the threaded ring 20 at the bottom of the stand block 16 can be screwed into the threaded groove 21 to fix the position of the stand block 16 on the mounting block 9. By twisting the stand block 16 in the opposite direction, the threaded ring 20 can be separated from the threaded groove 21, allowing the stand block 16 to be disassembled.
[0031] Preferably, the outer surface of the stand block 16 is connected with protrusions 22 in a ring array.
[0032] In practical use, the protrusion 22 can increase the friction between the upright block 16 and the operator's hand, making it easier for the operator to twist the protrusion 22.
[0033] It should be noted that the filter sponge 4 placed in the water outlet end cap 2 and the water inlet end cap 3 can be pulled out for maintenance and replacement. The filter sponge 4 can ensure that water can enter the filter element housing 1 normally for circulation, perform preliminary filtration of water, and block the activated carbon filter media 5 filled in the filter element housing 1 to prevent the activated carbon filter media 5 from escaping from the filter element housing 1.
[0034] Working principle: When using this easy-to-fill activated carbon filter cartridge, the operator connects the outlet cap 2 and the inlet cap 3 to an external water pipe via the pipe connectors. Water from the external pipe then enters the filter cartridge housing 1 through the inlet cap 3 and exits through the outlet cap 2. As the water flows through the filter cartridge housing 1, the activated carbon filter media 5 filling the housing 1 adsorbs and filters the water. When performing regular maintenance on the activated carbon filter cartridge, first disconnect the outlet cap 2 and the inlet cap 3 from the connected external water pipe. After the water pipes are separated, pull the two sliding rods 15 one by one, so that the sliding rods 15 can compress the spring 17 in the upright block 16. At this time, one end of the sliding rod 15 will separate from the insertion hole 14 on the fixed plug 12. Then pull the fixed plug 12, so that the fixed plug 12 can slide in the slot 11, so that one end of the fixed plug 12 separates from the limiting hole 13 on the connecting block 7. Pull the water inlet end cap 3 upward, so that the connecting block 7 can be separated from the mounting block 9. At the same time, the connecting ring 6 on the water inlet end cap 3 will also... Separate the retaining ring 10, allowing operators to easily remove the inlet cap 3 without tools. Then, clean out the old activated carbon filter media 5 from the filter cartridge housing 1, and replace the filter sponge 4. Operators can then easily fill the filter cartridge housing 1 with the activated carbon filter media 5, and reinstall the inlet cap 3 onto the filter cartridge housing 1, allowing the activated carbon filter cartridge to continue operating. This operation allows for separate maintenance and replacement of the activated carbon filter media 5, ensuring the filter cartridge housing 1 remains undamaged before continued use. This saves on the maintenance costs of activated carbon filter cartridges. Secondly, when the spring 17 in the stand block 16 is severely aged and its performance is poor, the stand block 16 can be turned by twisting it so that the stand block 16 with the threaded ring 20 can rotate in the threaded groove 21, allowing the threaded ring 20 to separate from the threaded groove 21. At this time, the stand block 16 can be removed so that the operator can replace it with a stand block 16 with a new spring 17, thereby ensuring the performance of the spring 17 in the stand block 16 and preventing the aging of the spring 17 from affecting the stability of the sliding rod 15 after insertion.
[0035] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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 convenient-to-fill activated carbon filter cartridge comprising a cartridge housing (1), characterized in that: The bottom surface of the filter cartridge housing (1) is fixedly connected to an outlet end cap (2), and the top surface of the filter cartridge housing (1) is in contact with the bottom surface of the inlet end cap (3). Filter sponges (4) are connected to the inner surfaces of both the outlet end cap (2) and the inlet end cap (3). Activated carbon filter media (5) are placed inside the filter cartridge housing (1). A connecting ring (6) is connected to the outer surface of the inlet end cap (3). Connecting blocks (7) are symmetrically connected to the outer surface of the connecting ring (6). One end of the connecting block (7) is slidably inserted into the connecting groove. 8) Inside, the connecting groove (8) is opened on the top surface of the mounting block (9), the mounting block (9) is symmetrically connected to the outer surface of the fixing ring (10), the fixing ring (10) is connected to the outer surface of the top of the filter housing (1), the front end surface of the mounting block (9) is provided with a slot (11), the slot (11) is slidably connected with a fixing block (12), one end of the fixing block (12) is connected through a limiting hole (13), the limiting hole (13) is opened through the front end surface of the bottom of the connecting block (7).
2. The easy-to-fill activated carbon filter cartridge of claim 1, wherein: The top surface of one end of the fixed plug (12) is provided with a plug hole (14), and one end of the sliding plug rod (15) is slidably inserted into the plug hole (14).
3. A convenient-to-fill activated carbon filter cartridge according to claim 2, wherein: The other end of the sliding rod (15) is connected to a standing block (16), which is connected to the top surface of the mounting block (9). The standing block (16) is provided with a spring (17) that is penetrated by the sliding rod (15).
4. The easy-to-fill activated carbon filter cartridge of claim 1, wherein: Two sets of sealing rings (18) are connected to the inner surface of the connecting ring (6). One end of the sealing ring (18) is engaged in the sealing groove (19). The sealing groove (19) is opened on the outer surface of the top of the fixing ring (10).
5. The easily filled activated carbon filter element according to claim 3, characterized in that: The bottom surface of the stand block (16) is connected to a threaded ring (20), and the other end of the threaded ring (20) is connected to a threaded groove (21). The threaded groove (21) is opened on the top surface of the mounting block (9).
6. The easily filled activated carbon filter element according to claim 5, characterized in that: The outer surface of the stand (16) is connected with protrusions (22) in a ring array.