A safe and efficient online switching device for iron filings adsorption.
The online switching device uses a strong magnet and a collection box to quickly attract and clean iron filings, solving the problem that traditional devices cannot switch online, thus ensuring the continuity of fluid transport and the stability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 廖琴
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional magnetic adsorption devices cannot achieve online switching and cleaning of iron filings, leading to production interruptions and affecting process continuity and product quality.
Design an online switching device that includes a strong magnet and a collection box. The device achieves rapid switching by connecting a cylinder to a piston rod. The strong magnet attracts iron filings, and the collection box is easy to install and remove, avoiding horizontal misoperation and ensuring safety and continuity of fluid delivery.
It enables rapid removal of metal filings, avoids downtime for maintenance, ensures the continuity of fluid transport and the stability of the system, and reduces maintenance frequency and risk.
Smart Images

Figure CN224271492U_ABST
Abstract
Description
Technical Field
[0001] This specification relates to the field of iron filings adsorption technology, and more particularly to a safe and efficient online switching device for iron filings adsorption. Background Technology
[0002] In fluid transport processes, as well as in pneumatic conveying pipelines for powders and granules in chemical production, gratings are often designed to clean impurities in the transported materials. However, they cannot remove iron filings and rust. Furthermore, traditional magnetic adsorption devices do not have the function of online switching and cleaning. It is necessary to interrupt partial or complete production, replace and disassemble the magnetic adsorption device before cleaning.
[0003] The existing technology includes Chinese utility model patent application number 202320935961, entitled "A Wear-Resistant Rubber-Lined Gate Valve with a Filter Structure," which describes how "the combined use of a filter cylinder, fiber ball filter media, and inlet achieves the degradation and filtration of fixed impurities such as sand and gravel in the fluid medium, preventing impurities from entering the gate valve and causing wear on the inner wall of the wear-resistant rubber lining, thus affecting the gate valve's performance. Furthermore, the magnetic adsorption plate can adsorb iron filings in the water, and the water can be fully filtered inside the filter cylinder, reducing [the impurities] through the outlet." When the small gate valve is suddenly closed, the pressure generated by the fluid medium on the gate valve provides corresponding protection. The filter cartridge can be disassembled and removed by the cooperation of the connecting strip, connecting groove and handle, so that it can be replaced in time and the filtration effect can be maintained. However, the filter cartridge described has magnetic plates set in the inner ring of the cylinder wall to attract iron filings and impurities. When cleaning impurities, the whole thing needs to be removed to remove the surface iron filings. However, each disassembly and assembly of the flange takes a long time, which affects the continuity of process production, product quality, stable production of the equipment, and may even cause the equipment to shut down. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a safe and efficient online switching device for adsorbing iron filings, so as to solve the problem of quickly cleaning iron filings and other impurities in the prior art.
[0005] Based on the above objectives, this utility model provides a safe and efficient online switching device for adsorbing iron filings, including a switching mechanism. The switching mechanism is connected to a cylinder through a piston rod. The switching mechanism includes two identical connecting pipes. The upper part of the connecting pipe is cylindrical and the lower part is square. Several strong magnets are fixedly connected to the inside of the square pipe wall. A sleeve is connected to the outside of the connecting pipe wall.
[0006] The strong magnet is used to attract iron filings;
[0007] The top of the strong magnet is connected to the collection box, and the bottom of the collection box is fixedly connected to the partition.
[0008] The partition is used to isolate iron filings;
[0009] A cylindrical channel is opened in the middle of the connecting pipe, and the inside of the channel is used for normal fluid transport.
[0010] The cylinder outer wall is connected to a fixing bracket.
[0011] Preferably, the openings at both ends of the connecting pipe are fixedly connected to the sealing ring, the sealing ring is connected to the outside of the sealing plate, and the outside of the sealing plate is fixedly connected to the cover plate.
[0012] The sealing ring is used to prevent the strong magnet from coming into contact with external fluids.
[0013] Preferably, the cover plate is fixedly connected to the pipe via a flange.
[0014] Preferably, the fixing frame includes a fixing rod, one side surface of the fixing frame is fixedly connected to the cylinder through the fixing rod, and the other side surface of the fixing frame is fixedly connected to the fixing ring through the fixing rod.
[0015] Preferably, the fixing ring is circular, has an opening, and is fixed to the outer wall of the pipe by fastening screws.
[0016] Preferably, the collection box is fixedly connected to the snap-fit blocks on both sides, and the inner wall of the connecting tube has a snap-fit groove for snapping with the snap-fit blocks. The collection box moves vertically away from the strong magnet and is removed from the inner wall of the connecting tube.
[0017] As can be seen from the above, the present invention provides a safe and efficient online switching device for adsorbing iron filings. By setting strong magnets at the bottom of two identical connecting pipes inside the switching mechanism, and setting a collection box at the top of the strong magnets, magnetic impurities such as iron filings and rust are attracted by the magnets and enter the collection box, which facilitates quick cleaning of magnetic impurities. The collection box is provided with snap-fit blocks on both sides to snap into the inner wall of the connecting pipe, which facilitates quick disassembly and assembly. Vertical movement for removal avoids structural damage caused by horizontal misoperation, ensuring the safety of the maintenance process, and avoiding interference with other components. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in one or more embodiments of this specification 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 one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1This is a three-dimensional schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a top view of the overall structure of this utility model;
[0021] Figure 3 This is a cross-sectional view of the present invention;
[0022] Figure 4 This is a partially enlarged schematic diagram of the present invention;
[0023] Figure 5 This is an exploded view of the switching mechanism of this utility model.
[0024] In the diagram: 1. Pipe; 11. Flange; 2. Switching mechanism; 21. Sleeve; 22. Strong magnet; 23. Collection box; 24. Clip block; 25. Partition; 26. Sealing ring; 27. Sealing plate; 28. Connecting pipe; 29. Cover plate; 3. Cylinder; 31. Piston rod; 4. Fixing bracket; 41. Fixing rod; 42. Fixing ring. Detailed Implementation
[0025] 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 and accompanying drawings.
[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure 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.
[0027] Example 1:
[0028] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a safe and efficient online switching device for adsorbing iron filings is provided, including a switching mechanism 2. The switching mechanism 2 is connected to a cylinder 3 through a piston rod 31. The switching mechanism 2 includes two identical connecting pipes 28. The upper part of the connecting pipe 28 is cylindrical and the lower part is square. Several strong magnets 22 are fixedly connected inside the square pipe wall. The outer wall of the connecting pipe 28 is connected to a sleeve 21.
[0029] The strong magnet 22 is used to adsorb iron filings. Two identical connecting pipes 28 enable rapid switching between adsorption and cleaning states, avoiding downtime for maintenance and ensuring the continuity of fluid transport. The magnet is fixed inside the pipe wall to avoid direct contact with the fluid, thus extending its service life.
[0030] The top of the strong magnet 22 is connected to the collection box 23, the bottom of the collection box 23 is fixedly connected to the partition 25, and baffles are provided at both ends of the collection box 23. The height of the baffles can effectively block some iron filings from flowing with the fluid.
[0031] The partition 25 is used to isolate iron filings, and the collection box 23 stores the iron filings in a centralized manner. When cleaning, the iron filings can be collected and cleaned by simply picking up the collection box 23, thus reducing the frequency of maintenance.
[0032] The connecting pipe 28 has a cylindrical channel in the middle. The inside of the channel is used for normal fluid transport. The middle channel maintains normal fluid transport and avoids increased fluid resistance due to the intervention of the adsorption device, thus ensuring the stability of system operation.
[0033] The cylinder 3 is connected to a fixing bracket 4 on its outer wall to prevent displacement or vibration during switching operations, thereby improving the overall reliability of the device.
[0034] The openings at both ends of the connecting pipe 28 are fixedly connected to the sealing ring 26, the sealing ring 26 is connected to the outside of the sealing plate 27, and the outside of the sealing plate 27 is fixedly connected to the cover plate 29.
[0035] The sealing ring 26 is used to prevent the strong magnet 22 from contacting the external fluid, avoiding oxidation or corrosion of the magnet. The sealing plate 27 further enhances the sealing performance, preventing iron filings from leaking or fluid from seeping into the magnet area. The cover plate 29 achieves modular encapsulation, which is convenient for disassembly and maintenance and does not affect the sealing performance.
[0036] The collection box 23 is fixedly connected to the snap-fit blocks 24 on both sides. The inner wall of the connecting tube 28 has a snap-fit groove for engaging with the snap-fit blocks 24. The collection box 23 moves vertically away from the strong magnet 22 and is removed from the inner wall of the connecting tube 28. Through the engagement of the snap-fit blocks 24 and the snap-fit groove, the collection box 23 can be quickly disassembled and assembled without tools, simplifying the iron filings cleaning process, shortening maintenance time, and vertically moving it out to avoid structural damage caused by horizontal misoperation, ensuring the safety of the maintenance process, and avoiding interference with other components.
[0037] Example 2:
[0038] like Figure 1 , Figure 2 and Figure 3 As shown, a safe and efficient online switching device for adsorbing iron filings is provided, including a switching mechanism 2. The switching mechanism 2 is connected to a cylinder 3 through a piston rod 31. The switching mechanism 2 includes two identical connecting pipes 28. The upper part of the connecting pipe 28 is cylindrical and the lower part is square. Several strong magnets 22 are fixedly connected inside the square pipe wall. The outer wall of the connecting pipe 28 is connected to a sleeve 21.
[0039] The strong magnet 22 is used to adsorb iron filings. Two identical connecting pipes 28 enable rapid switching between adsorption and cleaning states, avoiding downtime for maintenance and ensuring the continuity of fluid transport. The magnet is fixed inside the pipe wall to avoid direct contact with the fluid, thus extending its service life.
[0040] The top of the strong magnet 22 is connected to the collection box 23, the bottom of the collection box 23 is fixedly connected to the partition 25, and baffles are provided at both ends of the collection box 23. The height of the baffles can effectively block some iron filings from flowing with the fluid.
[0041] The partition 25 is used to isolate iron filings, and the collection box 23 stores the iron filings in a centralized manner. When cleaning, the iron filings can be collected and cleaned by simply picking up the collection box 23, thus reducing the frequency of maintenance.
[0042] The connecting pipe 28 has a cylindrical channel in the middle. The inside of the channel is used for normal fluid transport. The middle channel maintains normal fluid transport and avoids increased fluid resistance due to the intervention of the adsorption device, thus ensuring the stability of system operation.
[0043] The cylinder 3 is connected to a fixing bracket 4 on its outer wall to prevent displacement or vibration during switching operations, thereby improving the overall reliability of the device.
[0044] The cover plate 29 is fixedly connected to the pipe 1 via flange 11, which facilitates the improvement of the sealing level and is suitable for high pressure or high flow rate scenarios, reducing the risk of leakage.
[0045] The fixing frame 4 includes a fixing rod 41. One side surface of the fixing frame 4 is fixedly connected to the cylinder 3 through the fixing rod 41, and the other side surface of the fixing frame 4 is fixedly connected to the fixing ring 42 through the fixing rod 41.
[0046] The mounting bracket 4 has a cylinder fixed on one side and a pipe fixed on the other side, forming a stable triangular mechanical support structure. This disperses the stress when the cylinder 3 operates, reducing the risk of pipe deformation. The mounting ring 42 fits against the outer wall of the pipe 1, enhancing the overall vibration resistance of the device. It is suitable for long-distance pipeline systems.
[0047] The fixing ring 42 is circular and has an opening. The fixing ring 42 is fixed to the outer wall of the pipe 1 by fastening screws, which facilitates quick installation and fine-tuning of position, adapts to different pipe diameter requirements, and improves the versatility of the device.
[0048] Example 3:
[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a safe and efficient online switching device for adsorbing iron filings is provided, including a switching mechanism 2. The switching mechanism 2 is connected to a cylinder 3 through a piston rod 31. The switching mechanism 2 includes two identical connecting pipes 28. The upper part of the connecting pipe 28 is cylindrical and the lower part is square. Several strong magnets 22 are fixedly connected inside the square pipe wall. The outer wall of the connecting pipe 28 is connected to a sleeve 21.
[0050] The strong magnet 22 is used to adsorb iron filings. Two identical connecting pipes 28 enable rapid switching between adsorption and cleaning states, avoiding downtime for maintenance and ensuring the continuity of fluid transport. The magnet is fixed inside the pipe wall to avoid direct contact with the fluid, thus extending its service life.
[0051] The top of the strong magnet 22 is connected to the collection box 23, the bottom of the collection box 23 is fixedly connected to the partition 25, and baffles are provided at both ends of the collection box 23. The height of the baffles can effectively block some iron filings from flowing with the fluid.
[0052] The partition 25 is used to isolate iron filings, and the collection box 23 stores the iron filings in a centralized manner. When cleaning, the iron filings can be collected and cleaned by simply picking up the collection box 23, thus reducing the frequency of maintenance.
[0053] The connecting pipe 28 has a cylindrical channel in the middle. The inside of the channel is used for normal fluid transport. The middle channel maintains normal fluid transport and avoids increased fluid resistance due to the intervention of the adsorption device, thus ensuring the stability of system operation.
[0054] The cylinder 3 is connected to a fixing bracket 4 on its outer wall to prevent displacement or vibration during switching operations, thereby improving the overall reliability of the device.
[0055] The openings at both ends of the connecting pipe 28 are fixedly connected to the sealing ring 26, the sealing ring 26 is connected to the outside of the sealing plate 27, and the outside of the sealing plate 27 is fixedly connected to the cover plate 29.
[0056] The sealing ring 26 is used to prevent the strong magnet 22 from contacting the external fluid, avoiding oxidation or corrosion of the magnet. The sealing plate 27 further enhances the sealing performance, preventing iron filings from leaking or fluid from seeping into the magnet area. The cover plate 29 achieves modular encapsulation, which is convenient for disassembly and maintenance and does not affect the sealing performance.
[0057] The cover plate 29 is fixedly connected to the pipe 1 via flange 11, which facilitates the improvement of the sealing level and is suitable for high pressure or high flow rate scenarios, reducing the risk of leakage.
[0058] The fixing frame 4 includes a fixing rod 41. One side surface of the fixing frame 4 is fixedly connected to the cylinder 3 through the fixing rod 41, and the other side surface of the fixing frame 4 is fixedly connected to the fixing ring 42 through the fixing rod 41.
[0059] The mounting bracket 4 has a cylinder fixed on one side and a pipe fixed on the other side, forming a stable triangular mechanical support structure. This disperses the stress when the cylinder 3 operates, reducing the risk of pipe deformation. The mounting ring 42 fits against the outer wall of the pipe 1, enhancing the overall vibration resistance of the device. It is suitable for long-distance pipeline systems.
[0060] The fixing ring 42 is circular and has an opening. The fixing ring 42 is fixed to the outer wall of the pipe 1 by fastening screws, which facilitates quick installation and fine-tuning of position, adapts to different pipe diameter requirements, and improves the versatility of the device.
[0061] The collection box 23 is fixedly connected to the snap-fit blocks 24 on both sides. The inner wall of the connecting tube 28 has a snap-fit groove for engaging with the snap-fit blocks 24. The collection box 23 moves vertically away from the strong magnet 22 and is removed from the inner wall of the connecting tube 28. Through the engagement of the snap-fit blocks 24 and the snap-fit groove, the collection box 23 can be quickly disassembled and assembled without tools, simplifying the iron filings cleaning process, shortening maintenance time, and vertically moving it out to avoid structural damage caused by horizontal misoperation, ensuring the safety of the maintenance process, and avoiding interference with other components.
[0062] Working principle: The switching mechanism 2 is installed at the connection position in the middle of the fluid conveying pipeline 1. The fixing ring 42 is installed on the outer wall of the pipeline 1. The pipeline 1 is fixed to the cylinder 3 by the fixing bracket 4. The pipeline 1 is connected to one of the two connecting pipes 28 through the flange 11. When the fluid is conveyed, the liquid passes through the connecting pipe 28 in the middle of the switching mechanism 2. The fluid is conveyed normally through the connecting pipe 28. When impurities such as iron filings in the fluid pass through the connecting pipe 28, they are attracted by the strong magnet 22 at the bottom. The iron filings are adsorbed into the collection box 23 installed on the top of the strong magnet 22. The partition 25 at the bottom of the collection box 23 separates the iron filings from the magnet. The collection box 23 has a certain height at both ends to facilitate the blocking of some magnetic impurities from flowing away. When it is necessary to clean the iron filings and impurities, the piston rod 31 of the cylinder 3 drives the switching mechanism 2 to move and switch to the other connecting pipe 28. The collection box 23 that has collected the iron filings and impurities is pulled up, which can realize the rapid separation of impurities from the strong magnet 22.
[0063] 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 this disclosure (including the claims) is limited to these examples; within the scope of this 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 this invention as described above, which are not provided in the details for the sake of brevity.
[0064] The embodiments of this utility model are 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 safe and efficient online switching device for adsorbing iron filings, comprising a switching mechanism (2), wherein the switching mechanism (2) is internally connected to a cylinder (3) via a piston rod (31), characterized in that: The switching mechanism (2) includes two identical connecting pipes (28). The upper part of the connecting pipe (28) is cylindrical, and the lower part of the connecting pipe (28) is square. The inside of the square pipe wall is fixedly connected to several strong magnets (22), and the outside of the pipe wall of the connecting pipe (28) is connected to a sleeve (21). The strong magnet (22) is used to attract iron filings; The top of the strong magnet (22) is connected to the collection box (23), and the bottom of the collection box (23) is fixedly connected to the partition (25); The partition (25) is used to isolate iron filings; A cylindrical channel is opened in the middle of the connecting pipe (28), and the inside of the channel is used for normal fluid transport; The cylinder (3) is connected to the fixing bracket (4) on its outer wall.
2. The safe and efficient online switching device for iron filings adsorption according to claim 1, characterized in that, The openings at both ends of the connecting pipe (28) are fixedly connected to the sealing ring (26), the sealing ring (26) is connected to the outside of the sealing plate (27), and the outside of the sealing plate (27) is fixedly connected to the cover plate (29). The sealing ring (26) is used to prevent the strong magnet (22) from coming into contact with external fluid.
3. The safe and efficient online switching device for iron filings adsorption according to claim 2, characterized in that, The cover plate (29) is fixedly connected to the pipe (1) via a flange (11).
4. The safe and efficient online switching device for iron filings adsorption according to claim 1, characterized in that, The fixing frame (4) includes a fixing rod (41). One side of the fixing frame (4) is fixedly connected to the cylinder (3) through the fixing rod (41), and the other side of the fixing frame (4) is fixedly connected to the fixing ring (42) through the fixing rod (41).
5. The safe and efficient online switching device for iron filings adsorption according to claim 4, characterized in that, The fixing ring (42) is circular and has an opening. The fixing ring (42) is fixed to the outer wall of the pipe (1) by fastening screws.
6. The safe and efficient online switching device for iron filings adsorption according to claim 1, characterized in that, The collection box (23) is fixedly connected to the snap-fit block (24) on both sides. The inner wall of the connecting tube (28) has a snap-fit groove for snapping with the snap-fit block (24). The collection box (23) moves in the vertical direction away from the strong magnet (22) and is taken out from the inner wall of the connecting tube (28).