A filter cartridge having an easily replaceable skeleton

Abstract

The utility model relates to filter technology field discloses a filter core with easily replaceable framework, including filter pipe, the inner wall sliding connection of filter pipe has four supports, the inner wall mounting of four supports has replacement mechanism, the inner wall of four supports all installs cleaning mechanism, the replacement mechanism includes four connecting plates, the outer wall of four connecting plates all rotatoryly connected has connecting rod no.

Description

Technical Field

[0001] This utility model relates to the field of filtration technology, and in particular to a filter element with an easily replaceable frame. Background Technology

[0002] Most filter cartridges adopt an integrated design of frame and filter media. The frame is mostly injection molded or metal welded structure, which is tightly connected to the filter media by adhesive bonding, hot pressing and other methods. After the filter cartridge fails, it needs to be discarded and replaced as a whole. This not only leads to the underutilization of the frame, causing resource waste and environmental pressure, but also increases the user's operating costs. Although some detachable filter cartridges attempt to separate the frame and filter media, the connection structure is often complex, and replacement requires tools, which is cumbersome. Repeated disassembly and assembly can easily cause wear on the frame connection parts, reducing sealing performance and filtration accuracy. Therefore, a filter cartridge with an easily replaceable frame has emerged.

[0003] Replaceable filter cartridges are mostly semi-separate structures of the frame and filter media. The frame is made of plastic or metal and provides support and flow guidance. The filter media is assembled with the frame by snap-fit. The fluid to be filtered enters through the inlet and flows to the filter media through the frame's flow channel. Under the action of pressure difference, the fluid passes through the filter media, and impurities and contaminants are trapped. The clean fluid is then discharged from the outlet through the channel on the other side of the frame. When replacing, the entire filter cartridge needs to be removed. The frame and the failed filter media are separated using disassembly tools. After cleaning the frame, new filter media is reassembled.

[0004] Currently, filter cartridges with replaceable frames allow the filter media and frame to be separated. When the filter media fails, it can be replaced using disassembly tools, allowing the frame to be reused, reducing usage costs and resource waste. Such filter cartridges can be flexibly matched with various filter media according to different filtration needs, adapting to diverse scenarios. However, disassembling the frame requires specific tools, and the operation has a certain technical threshold, making it impossible to replace quickly, which reduces work efficiency to some extent. Therefore, a filter cartridge with an easily replaceable frame is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a filter element with an easily replaceable frame, aiming to improve the problem that the existing technology requires specific disassembly tools to remove the frame and cannot quickly replace the frame.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A filter element with an easily replaceable frame includes a filter tube, the inner wall of which is slidably connected with four supports, the inner walls of the four supports are equipped with a replacement mechanism, and the inner walls of the four supports are each equipped with a cleaning mechanism.

[0008] The replacement mechanism includes four connecting plates. Each of the four connecting plates is rotatably connected to a connecting rod 2. Each connecting rod 2 is rotatably connected to a fixing post 1. Each fixing post 1 is threadedly connected to a threaded rod on its inner wall. A knob is fixedly connected to one side of the threaded rod. Each of the four connecting plates is rotatably connected to a connecting rod 1. Each connecting rod 1 is rotatably connected to a fixing post 2 on its outer wall. A positioning component is fixedly connected to the inner wall of each fixing post 2.

[0009] As a further description of the above technical solution:

[0010] The cleaning mechanism includes multiple telescopic rods, one side of each telescopic rod is fixedly connected to the inner wall of the bracket, the outer wall of each telescopic rod is fitted with a spring, the other side of each telescopic rod is fixedly connected to a fixing plate, the outer wall of the fixing plate is fixedly connected to multiple scrapers, and one side of each bracket is provided with multiple slots.

[0011] As a further description of the above technical solution:

[0012] The positioning component includes a base, the top of which is fixedly connected to the bottom of the second fixing column, and a cylinder is fixedly connected to the top of the base, with a groove formed on the inner wall of the cylinder.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the threaded rod is rotatably connected to the inner wall of the groove, and the outer wall of the cylinder is fixedly connected to the inner wall of the second fixed column.

[0015] As a further description of the above technical solution:

[0016] One side of the scraper is in contact with the inner wall of the filter tube, and one side of the telescopic rod is fixedly connected to the inner wall of the slot.

[0017] As a further description of the above technical solution:

[0018] One side of the connecting plate is fixedly connected to the inner wall of the bracket, and the cross-section of the bracket is arc-shaped.

[0019] As a further description of the above technical solution:

[0020] The knob has a pentagonal gear-shaped cross-section, and the outer wall of the bracket is in contact with the inner wall of the filter tube.

[0021] As a further description of the above technical solution:

[0022] One side of the spring is fixedly connected to the inner wall of the slot, and the other side of the spring is fixedly connected to one side of the fixing plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, rotating the knob drives the threaded rod to rotate, the threaded rod drives the fixed column one to move axially, the fixed column one drives the connecting rod two to move, the fixed column two restricts the movement trajectory of the connecting rod one, and the connecting rod two drives the connecting plate and the connecting rod one to move, thereby realizing the telescopic adjustment of the frame and realizing the quick replacement of the bracket. The bracket can be adapted to tubular filter media of various sizes.

[0025] 2. In this utility model, when the bracket moves, it drives the telescopic rod to move synchronously along the slot. During the extension and retraction process, the spring is stretched or compressed, and the resulting elastic force pushes the fixing plate. The fixing plate drives the scraper to always stick to the inner wall of the filter tube. The fixing plate continuously scrapes away dirt on the inner wall of the filter tube, making the filter tube less prone to clogging and extending the service life of the filter tube. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a filter element with an easily replaceable frame proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a filter element support with an easily replaceable frame proposed in this utility model.

[0028] Figure 3 This is a schematic diagram of the structure of a fixing plate for a filter element with an easily replaceable frame, as proposed in this utility model.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Filter tube;

[0032] 2. Replacement mechanism; 21. Connecting plate; 22. Connecting rod one; 23. Connecting rod two; 24. Knob; 25. Fixing post one; 26. Threaded rod; 27. Fixing post two;

[0033] 28. Positioning component; 281. Cylinder; 282. Groove; 283. Base;

[0034] 3. Cleaning mechanism; 31. Fixing plate; 32. Scraper; 33. Spring; 34. Telescopic rod; 35. Slot;

[0035] 4. Bracket. Detailed Implementation

[0036] 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.

[0037] Example:

[0038] A filter element with an easily replaceable frame, see reference. Figure 1 and Figure 2 The filter tube 1 can efficiently carry water, air and other filter media to ensure stable filtration. Four supports 4 are slidably connected to the inner wall of the filter tube 1. The four supports 4 are symmetrically distributed in a ring. The inner wall of the four supports 4 is equipped with a replacement mechanism 2. The replacement mechanism 2 can quickly connect the supports 4 to the filter tube 1. The filter media can be replaced with simple operation, which greatly reduces the manpower and time costs of maintenance. The inner wall of each of the four supports 4 is equipped with a cleaning mechanism 3. The cleaning mechanism 3 can clean the inner wall of the filter tube 1 to prevent clogging and extend the service life of the filter tube 1.

[0039] Specifically, filter tube 1 stably carries the fluid and guides its flow. When the filter media needs to be replaced, the replacement mechanism 2 actively drives the support 4 to extend and retract, and the connection with the old filter media is easily disconnected through operation, so as to quickly complete the assembly of the new filter media. During the filtration process, the cleaning mechanism 3 scrapes and cleans impurities against the inner wall of filter tube 1 to avoid clogging and ensure that filter tube 1 can filter stably and efficiently for a long time.

[0040] The replacement mechanism 2 includes four connecting plates 21. Each of the four connecting plates 21 is rotatably connected to a connecting rod 23. The connecting rod 23 is a slender rod that can flexibly transmit driving force to ensure precise and smooth subsequent adjustment actions. The outer wall of the connecting rod 23 is rotatably connected to a fixing post 25. The inner wall of the fixing post 25 is threaded with a threaded rod 26. The inner wall of the fixing post 25 is threaded and fits tightly with the threaded rod 26. A knob 24 is fixedly connected to one side of the threaded rod 26. The knob 24 is easy to hold and rotate manually, and the threaded rod 26 can be easily rotated without tools. Each of the four connecting plates 21 is rotatably connected to a connecting rod 22. The outer wall of the connecting rod 22 is rotatably connected to a fixing post 27. The fixing post 27 is the same size as the fixing post 25 and is symmetrically distributed. Together, they realize the telescopic adjustment of the bracket 4. The inner wall of the fixing post 27 is fixedly connected to a positioning component 28 to prevent the replacement mechanism 2 from shifting during use.

[0041] Specifically, rotating the knob 24 causes the threaded rod 26 to rotate, the threaded rod 26 drives the fixed column 25 to move axially, the fixed column 25 drives the connecting rod 23 to move, and the connecting rod 23 drives the connecting plate 21 and the connecting rod 22 to move, thereby realizing the telescopic adjustment of the bracket 4.

[0042] The positioning component 28 includes a base 283, which provides basic support. The top of the base 283 is fixedly connected to the bottom of the second fixing column 27. The second fixing column 27 is used to fix one end of the first connecting rod 22. A cylinder 281 is fixedly connected to the top of the base 283. A groove 282 is opened on the inner wall of the cylinder 281. The groove 282 is used to place the threaded rod 26. The outer wall of the threaded rod 26 is rotatably connected to the inner wall of the groove 282. The outer wall of the cylinder 281 is fixedly connected to the inner wall of the second fixing column 27. One side of the connecting plate 21 is fixedly connected to the inner wall of the bracket 4. The connecting plate 21 drives the bracket 4 to perform telescopic movement. The cross-section of the bracket 4 is arc-shaped. The outer wall of the bracket 4 is in contact with the inner wall of the filter tube 1, which can fit various specifications of pipe-shaped filter media. The knob 24 has a pentagonal gear-shaped cross-section, which is convenient for manual gripping and rotation.

[0043] Specifically, the threaded rod 26 rotates within the groove 282 of the cylinder 281, and the base 283 supports the cylinder 281. When the threaded rod 26 rotates, the connecting plate 21 is driven by the driving force to extend and retract the bracket 4, and the bracket 4 slides against the inner wall of the filter tube 1.

[0044] Reference Figure 3 and Figure 4 The cleaning mechanism 3 includes multiple telescopic rods 34. One side of each telescopic rod 34 is fixedly connected to the inner wall of the bracket 4 and can extend and retract synchronously with the movement of the bracket 4, providing stable support for the cleaning action. The outer wall of each telescopic rod 34 is fitted with a spring 33, which can generate continuous elastic force when the telescopic rod 34 extends and retracts. The other side of each telescopic rod 34 is fixedly connected to a fixing plate 31. The outer wall of the fixing plate 31 is fixedly connected to multiple scrapers 32, which are used to clean the dirt on the inner wall of the filter tube 1. One side of each bracket 4 is provided with multiple slots 35, the size of which is adapted to the telescopic rod 34, providing a stable installation space and movement guide for the telescopic rod 34. One side of the scraper 32 is in contact with the inner wall of the filter tube 1. One side of the telescopic rod 34 is fixedly connected to the inner wall of the slot 35. One side of the spring 33 is fixedly connected to the inner wall of the slot 35. One side of the spring 33 is fixedly connected to one side of the fixing plate 31, forming a stable elastic support structure, so that the scraper 32 always remains in contact with the inner wall of the filter tube 1.

[0045] Specifically, when the bracket 4 moves, the telescopic rod 34 moves synchronously along the slot 35. During the extension and retraction process, the spring 33 is stretched or compressed, and the resulting elastic force pushes the fixing plate 31. The fixing plate 31 drives the scraper 32 to always stick to the inner wall of the filter tube 1. With the flushing of the filter fluid, the scraper 32 is driven to move, forming a continuous scraping action on the dirt on the inner wall of the filter tube 1.

[0046] The implementation principle of this application embodiment is as follows: When the filter element frame needs to be replaced, the screw rod 26 is rotated by rotating the knob 24. The screw rod 26 rotates in the groove 282 of the cylinder 281. When the screw rod 26 rotates, it drives the first fixed post 25 to move towards the top of the screw rod 26. The second connecting rod 23 moves closer to the screw rod 26 along with the first fixed post 25. The second fixed post 27 fixes the first connecting rod 22 in one position and controls the movement trajectory of the first connecting rod 22. The second connecting rod 23 drives the connecting plate 21 and the first connecting rod 22 to move closer to the screw rod 26 together, causing the four brackets 4 to retract inward, so that the outer wall of the bracket 4 is separated from the inner wall of the filter tube 1. When the filter element frame needs to be installed, the knob 24 is rotated in the opposite direction, so that the bracket 4 expands outward. When the bracket 4 is tightly fitted with the inner wall of the filter tube 1 and the filter tube 1 is stuck on the outer wall of the bracket 4, the filter element frame installation is completed.

[0047] When the bracket 4 moves, the telescopic rod 34 moves synchronously along the slot 35. During the extension and retraction process, the spring 33 is stretched or compressed, and the resulting elastic force pushes the fixing plate 31. The fixing plate 31 drives the scraper 32 to always be in contact with the inner wall of the filter tube 1. When the filter tube 1 is working, under the flushing of the fluid to be filtered, the scraper 32 moves under the impact force of the fluid to be filtered, forming a continuous up-and-down scraping action on the dirt on the inner wall of the filter tube 1, making the filter tube 1 less prone to clogging and improving the service life of the filter element.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter element with an easily replaceable frame, comprising a filter tube (1), characterized in that: The inner wall of the filter tube (1) is slidably connected with four supports (4), and the inner walls of the four supports (4) are equipped with replacement mechanisms (2) and cleaning mechanisms (3). The replacement mechanism (2) includes four connecting plates (21). The outer walls of the four connecting plates (21) are rotatably connected to connecting rods two (23). The outer walls of connecting rods two (23) are rotatably connected to fixing posts one (25). The inner wall of fixing posts one (25) is threadedly connected to a threaded rod (26). A knob (24) is fixedly connected to one side of the threaded rod (26). The outer walls of the four connecting plates (21) are rotatably connected to connecting rods one (22). The outer walls of connecting rods one (22) are rotatably connected to fixing posts two (27). The inner wall of fixing posts two (27) is fixedly connected to a positioning component (28).

2. A filter element with an easily replaceable frame according to claim 1, characterized in that: The cleaning mechanism (3) includes multiple telescopic rods (34), one side of each of the multiple telescopic rods (34) is fixedly connected to the inner wall of the bracket (4), the outer wall of each of the multiple telescopic rods (34) is fitted with a spring (33), the other side of each of the multiple telescopic rods (34) is fixedly connected to a fixing plate (31), the outer wall of the fixing plate (31) is fixedly connected to multiple scrapers (32), and one side of each of the multiple brackets (4) is provided with multiple slots (35).

3. A filter element with an easily replaceable frame according to claim 1, characterized in that: The positioning component (28) includes a base (283), the top of which is fixedly connected to the bottom of the second fixing column (27), and a cylinder (281) is fixedly connected to the top of the base (283). The inner wall of the cylinder (281) is provided with a groove (282).

4. A filter element with an easily replaceable frame according to claim 3, characterized in that: The outer wall of the threaded rod (26) is rotatably connected to the inner wall of the groove (282), and the outer wall of the cylinder (281) is fixedly connected to the inner wall of the fixed column (27).

5. A filter element with an easily replaceable frame according to claim 2, characterized in that: One side of the scraper (32) is in contact with the inner wall of the filter tube (1), and one side of the telescopic rod (34) is fixedly connected to the inner wall of the slot (35).

6. A filter element with an easily replaceable frame according to claim 1, characterized in that: One side of the connecting plate (21) is fixedly connected to the inner wall of the bracket (4), and the cross-section of the bracket (4) is arc-shaped.

7. A filter element with an easily replaceable frame according to claim 1, characterized in that: The knob (24) has a pentagonal gear-shaped cross-section, and the outer wall of the bracket (4) is in contact with the inner wall of the filter tube (1).

8. A filter element with an easily replaceable frame according to claim 2, characterized in that: One side of the spring (33) is fixedly connected to the inner wall of the slot (35), and the other side of the spring (33) is fixedly connected to one side of the fixing plate (31).

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