A filtration device that facilitates the replacement of activated carbon filter media.
By introducing a sliding rack and transmission gear structure into the activated carbon filter, combined with a return spring and a multi-stage telescopic rod driven by a motor, the problem of the packing hopper falling off during replacement is solved, achieving stable insertion and convenient disassembly, and improving the reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZHONGJING LINGHANG TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
Smart Images

Figure CN224279840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of condensate purification equipment, specifically a filtration device that facilitates the replacement of activated carbon filter media. Background Technology
[0002] Activated carbon filters, also known as carbon filters or activated carbon filtration, are water treatment processes that use activated carbon as the filter media. Activated carbon filters have an inlet device at the top and a drain device at the bottom. During operation, water enters from the top, flows through the activated carbon filter layer, and exits from the bottom. Utilizing the numerous functional groups such as hydroxyl groups on the surface of activated carbon, it can chemically adsorb substances of various properties, removing odors, organic matter, colloids, iron, and residual chlorine from the water. Simultaneously, it reduces the turbidity and color of the water, making the water clear and transparent, and reducing pollution to subsequent systems such as reverse osmosis, ultrafiltration, and ion exchangers. Activated carbon requires regular cleaning or replacement after prolonged use.
[0003] A Chinese patent (publication number: CN216155534U) discloses a filtration device that facilitates the replacement of activated carbon filter media. It monitors the internal pressure of the tank using a barometer, helping operators determine the pressure level and perform effective maintenance, thus extending the tank's lifespan. Water flow is controlled via inlet and outlet valves, allowing for adjustment of filtration time based on water conditions, improving filtration quality. The tank cover is opened and the packing frame is raised via a threaded connection between a sleeve and a vertical shaft, controlled by a motor. This device is low-cost, easy to operate, and readily adopted. A water distribution plate ensures wastewater flows evenly into the activated carbon packing, improving purification and filtration efficiency. A limiting cylinder and sealing gasket ensure effective wastewater filtration.
[0004] During the use of the above-mentioned equipment, the packing hopper may become saturated and need to be replaced after a long period of use. The replacement process is done by inserting the packing hopper into the packing frame. When disassembling, it can be pulled out of the packing frame. Although this is relatively quick, the movement is restricted only by the horizontal slot during the pulling and fixing process. However, when the water pressure inside the equipment fluctuates or the packing hopper becomes heavier due to the saturation of activated carbon, the increased gravity may cause the packing hopper to fall off.
[0005] To address these issues, we designed a filtration device that allows for easy replacement of activated carbon filter media. Utility Model Content
[0006] The purpose of this invention is to provide a filtration device that facilitates the replacement of activated carbon filter media, thereby solving the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, this utility model provides a filtration device that facilitates the replacement of activated carbon filter media, including a tank and a mounting frame vertically slidably disposed in the tank. Multiple packing hoppers are inserted into the mounting frame, and multiple sets of first snap-fit components are provided in the mounting frame, including multiple snap-fit grooves opened in the mounting frame. Two mutually symmetrical sliding plates are slidably connected in the snap-fit grooves. A first return spring is connected between the two sliding plates. A limit block is connected to the other side of the sliding plate, and one end of the limit block is inserted into the packing hopper.
[0008] Furthermore, the mounting frame is also provided with a second locking assembly, including a sliding rack disposed within the mounting frame. The sliding rack can slide horizontally along the radial direction of the mounting frame. Both sides of the sliding rack are meshed with transmission gears. A transmission plate is connected to the transmission gears. A limit block is connected to the end of the transmission plate. An abutment block is connected to one side of the filling hopper. The abutment block and the sliding rack are on the same plane. A second return spring is connected to the end of the sliding rack away from the abutment block. The other end of the second return spring is connected within the mounting frame. When the abutment block slides horizontally, it can abut against the sliding rack, causing the transmission gear to drive the limit block to rotate and lock onto the abutment block.
[0009] Furthermore, a limiting plate is connected to the bottom of the sliding rack, and the limiting plate is slidably connected in the mounting frame, which has a groove for the limiting plate to slide in.
[0010] Furthermore, one side of the mounting bracket is provided with an insertion interface for inserting the contact block, and a sealing sleeve is connected to the insertion interface.
[0011] Furthermore, the bottom of the skateboard is connected to a guide post, which is slidably connected within the mounting frame. The mounting frame has a limiting groove that matches the guide post.
[0012] Furthermore, a force bar for pulling the skateboard is connected to the top of the skateboard.
[0013] Furthermore, a gantry frame is connected to the tank body, and a servo motor is connected to the gantry frame. The drive end of the servo motor is connected to a multi-stage electric telescopic rod via a coupling, and the telescopic end of the multi-stage electric telescopic rod is connected to the top of the mounting frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. Insert the packing hopper containing activated carbon filler into the mounting frame. During insertion, the packing hopper will press against the sliding plate in the locking groove of the mounting frame, causing the sliding plate to slide within the locking groove and compress the first return spring. Once the packing hopper is fully inserted, the first return spring returns to its original position, pushing the sliding plate so that the limiting block connected to the other side of the sliding plate is inserted into the packing hopper, thus fixing the packing hopper in place. Compared to the pull-out locking method, this method provides more stable fixation and is easier to disassemble.
[0016] 2. As the stuffing hopper is inserted, the contact block connected to one side slides horizontally, contacting the sliding rack inside the mounting frame, causing the sliding rack to slide radially within the mounting frame. The transmission gears on both sides of the sliding rack mesh with the sliding rack, causing it to rotate, which in turn drives the transmission plate to rotate. This causes the limiting block at the end of the transmission plate to rotate and engage with the contact block. This design further enhances the stability of the installation. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the overall external structure of this utility model;
[0018] Figure 2 This is a first sectional view of the present invention;
[0019] Figure 3 This is a second sectional view of the present invention;
[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;
[0021] Figure 5 This utility model Figure 2 Enlarged view of point B in the middle;
[0022] Figure 6 This utility model Figure 1 Enlarged view of point C in the middle.
[0023] In the diagram: 1. Tank body; 2. Mounting frame; 3. Filler hopper; 4. Slide plate; 5. First return spring; 6. Limiting block; 7. Abutting block; 8. Sliding rack; 9. Transmission gear; 10. Transmission plate; 11. Limiting block; 12. Second return spring; 13. Guide column; 14. Force rod; 15. Gantry frame; 16. Servo motor; 17. Multi-stage electric telescopic rod. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-6 This utility model provides a technical solution: a filter device for easy replacement of activated carbon filter media, including a tank 1 and a mounting frame 2 vertically slidably disposed in the tank 1. Multiple packing hoppers 3 are inserted into the mounting frame 2. Multiple sets of first snap-fit components are provided in the mounting frame 2, including multiple snap-fit grooves opened in the mounting frame 2. Two mutually symmetrical sliding plates 4 are slidably connected in the snap-fit grooves. A first return spring 5 is connected between the two sliding plates 4. A limit block 6 is connected to the other side of the sliding plate 4. One end of the limit block 6 is inserted into the packing hopper 3.
[0026] It should be noted that activated carbon can be filled into the filling hopper 3 to filter impurities, and after filling, it can be inserted into the mounting frame 2.
[0027] In practice, when installing the filling hopper 3, it is inserted into the mounting bracket 2. The filling hopper 3 will squeeze the sliding plate 4, causing the sliding plate 4 to slide and compress the first return spring 5. When the filling hopper 3 is inserted into place, the first return spring 5 returns to its original position, pushing the sliding plate 4 to insert the limiting block 6 into the filling hopper 3, thereby fixing the filling hopper 3. When disassembling, the sliding plate 4 is pulled to remove the limiting block 6 from the filling hopper 3, and the filling hopper 3 can be removed.
[0028] See Figure 1-6 The mounting bracket 2 also includes a second snap-fit assembly,
[0029] A sliding rack 8 is installed inside the mounting frame 2. The sliding rack 8 can slide horizontally along the radial direction of the mounting frame 2. Both sides of the sliding rack 8 are meshed with transmission gears 9. A transmission plate 10 is connected to the transmission gears 9. A limit block 11 is connected to the end of the transmission plate 10. An abutment block 7 is connected to one side of the filling hopper 3. The abutment block 7 is on the same plane as the sliding rack 8. A second return spring 12 is connected to the end of the sliding rack 8 away from the abutment block 7. The other end of the second return spring 12 is connected inside the mounting frame 2. When the abutment block 7 slides horizontally, it can abut against the sliding rack 8, causing the transmission gear 9 to drive the limit block 11 to rotate and engage with the abutment block 7.
[0030] In specific implementation, when the filling hopper 3 is inserted into the mounting frame 2, the abutting block 7 will slide horizontally with the filling hopper 3, abutting the sliding rack 8 and causing it to slide radially within the mounting frame 2. The transmission gears 9 on both sides of the sliding rack 8 will rotate in mesh with the sliding rack 8, thereby driving the transmission plate 10 to rotate, so that the limiting block 11 will rotate and engage with the abutting block 7.
[0031] See Figure 1-6 The bottom of the sliding rack 8 is connected to a limiting plate, which is slidably connected inside the mounting frame 2. The mounting frame 2 has a groove for the limiting plate to slide.
[0032] In practice, the limiting plate at the bottom of the sliding rack 8 slides in the groove inside the mounting frame 2, providing guidance and limiting for the sliding of the sliding rack 8, so that the sliding rack 8 can only slide horizontally along the radial direction of the mounting frame 2.
[0033] See Figure 1-6 The mounting bracket 2 has an insertion interface on one side for the contact block 7 to be inserted, and a sealing sleeve is connected to the insertion interface.
[0034] In practice, the insertion interface on one side of the mounting frame 2 is used for the insertion of the contact block 7. The sealing sleeve is installed at the insertion interface. When the filling hopper 3 is inserted into the mounting frame 2, the contact block 7 passes through the insertion interface, and the sealing sleeve fits tightly with the contact block 7 to form a sealing structure. This setting prevents water from leaking from the insertion interface.
[0035] See Figure 1-6 The bottom of the slide plate 4 is connected to a guide post 13, which is slidably connected in the mounting frame 2. The mounting frame 2 has a limiting groove that matches the guide post 13.
[0036] In practice, the guide post 13 at the bottom of the slide plate 4 slides in the limiting groove in the mounting bracket 2, providing guidance for the slide plate 4 to slide in the snap-fit groove, so that the slide plate 4 can slide stably.
[0037] See Figure 1-6 The top of the skateboard 4 is connected to a lever 14 for pulling the skateboard 4 to move.
[0038] In practice, when disassembling the filling hopper 3, the operator pulls the force bar 14 to move the sliding plate 4, so that the limiting block 6 is pulled out from the filling hopper 3.
[0039] See Figure 1-6 A gantry frame 15 is connected to the tank body 1, and a servo motor 16 is connected to the gantry frame 15. The drive end of the servo motor 16 is connected to a multi-stage electric telescopic rod 17 through a coupling. The telescopic end of the multi-stage electric telescopic rod 17 is connected to the top of the mounting frame 2.
[0040] In practice, the telescopic end of the multi-stage electric telescopic rod 17 is connected to the top of the mounting frame 2, thereby enabling the mounting frame 2 to slide vertically within the tank 1, facilitating the raising or lowering of the mounting frame 2 from the tank 1, and making it easier to install the packing hopper 3.
[0041] Working principle: The packing hopper 3 containing activated carbon filler is inserted into the mounting frame 2. During insertion, the packing hopper 3 presses against the sliding plate 4 in the locking groove of the mounting frame 2, causing the sliding plate 4 to slide within the locking groove and compress the first return spring 5. When the packing hopper 3 is fully inserted, the first return spring 5 returns to its original position, pushing the sliding plate 4 so that the limiting block 6 connected to the other side of the sliding plate 4 is inserted into the packing hopper 3, thus completing the fixation of the packing hopper 3 by the first locking assembly.
[0042] Meanwhile, as the stuffing hopper 3 is inserted, the contact block 7 connected to one side slides horizontally, contacting the sliding rack 8 inside the mounting frame 2, causing the sliding rack 8 to slide radially within the mounting frame 2. The transmission gears 9 on both sides of the sliding rack 8 mesh with the sliding rack 8, causing it to rotate, which in turn drives the transmission plate 10 to rotate, causing the limiting block 11 at the end of the transmission plate 10 to rotate and engage with the contact block 7. The second engaging assembly further strengthens the fixation of the stuffing hopper 3.
Claims
1. A filter device for facilitating replacement of activated carbon filter media, comprising a tank body (1) and a mounting frame (2) vertically slidably arranged in the tank body (1), characterized in that, The mounting frame (2) is fitted with multiple filling hoppers (3), and the mounting frame (2) is provided with multiple sets of first snap-fit components, including, Multiple snap-fit slots are provided in the mounting bracket (2), and two symmetrical sliding plates (4) are slidably connected in the snap-fit slots. A first return spring (5) is connected between the two sliding plates (4). A limit block (6) is connected to the other side of the sliding plate (4), and one end of the limit block (6) is inserted into the filling hopper (3).
2. The filter assembly of claim 1, wherein: The mounting bracket (2) is further provided with a second snap-fit assembly, including, A sliding rack (8) is installed inside the mounting frame (2). The sliding rack (8) can slide horizontally along the radial direction of the mounting frame (2). Both sides of the sliding rack (8) are meshed with transmission gears (9). A transmission plate (10) is connected to the transmission gears (9). A limit block (11) is connected to the end of the transmission plate (10). An abutment block (7) is connected to one side of the filling hopper (3). The abutment block (7) is on the same plane as the sliding rack (8). A second return spring (12) is connected to the end of the sliding rack (8) away from the abutment block (7). The other end of the second return spring (12) is connected inside the mounting frame (2). When the contact block (7) slides horizontally, it can abut against the sliding rack (8) to cause the transmission gear (9) to drive the limit block (11) to rotate and engage with the contact block (7).
3. The filter assembly of claim 2 wherein: the filter housing includes a removable cover; the filter cartridge includes a removable end cap; and the filter assembly is configured to allow the filter cartridge to be removed from the filter housing through the removable cover and the removable end cap. The bottom of the sliding rack (8) is connected to a limiting plate, which is slidably connected in the mounting frame (2). The mounting frame (2) has a groove for the limiting plate to slide in. 4. The filter assembly of claim 2 wherein: The mounting bracket (2) has an insertion interface on one side for inserting the contact block (7), and a sealing sleeve is connected to the insertion interface.
5. The filtration device for easy replacement of activated carbon filter media as described in claim 1, characterized in that: The bottom of the slide plate (4) is connected to a guide post (13), which is slidably connected in the mounting frame (2). The mounting frame (2) has a limiting groove that matches the guide post (13).
6. The filter assembly of claim 1 wherein: the filter assembly is configured to facilitate replacement of the activated carbon filter media. The top of the skateboard (4) is connected to a force bar (14) for pulling the skateboard (4) to move.
7. The filter assembly of claim 1 wherein: the filter assembly is configured to facilitate replacement of the activated carbon filter media. 5 A gantry frame (15) is connected to the tank body (1), and a servo motor (16) is connected to the gantry frame (15). The drive end of the servo motor (16) is connected to a multi-stage electric telescopic rod (17) through a coupling. The telescopic end of the multi-stage electric telescopic rod (17) is connected to the top of the mounting frame (2).