A rotary mounting structure, and a magnetic field removing member including the same

Abstract

The application belongs to the technical field of graphite powder processing equipment, and particularly relates to a rotary mounting structure and a demagnetization component comprising the same. The rotary mounting structure comprises an opening fixing plate unit, a rotary cover plate unit symmetrically arranged on two sides of the opening fixing plate unit and used for covering the opening position on the opening fixing plate unit when the demagnetization component is powered on to adsorb iron filings and powered off to remove the iron filings, and a magnetic guide cover unit arranged on one side of the rotary cover plate unit and used for mounting a power-on coil. The application has at least the following beneficial effects: the rotary cover plate unit can rotate at least 180 degrees, so that the magnetic guide cover unit can face inward or outward, and the opening position on the opening fixing plate unit is always covered by the rotary cover plate unit when the demagnetization component is powered on to adsorb iron filings and powered off to remove the iron filings, thereby avoiding a large amount of material leakage of the demagnetization component.

Description

Technical Field

[0001] This application belongs to the technical field of graphite powder processing equipment, and particularly relates to a rotary mounting structure and a demagnetizing component including the structure. Background Technology

[0002] Graphite powder is a blackish-gray mineral powder whose main component is carbon. It has outstanding high-temperature resistance and electrical conductivity, and can be used as a refractory material, a conductive material, and a wear-resistant lubricating material.

[0003] Generally, the processing technology of graphite powder mainly includes the following steps in sequence: crushing, purification, grinding, and post-processing. The removal of ferromagnetic impurities corresponding to the demagnetizing component mentioned above belongs to the post-processing steps.

[0004] On the other hand, the principle of ferromagnetic impurity removal is mainly as follows: after the energized coil structure of the demagnetizing component generates a magnetic field, it can attract iron filings. When graphite powder passes over or near this magnetic field, the iron filings are removed, thus improving the quality of the graphite powder. These iron filings are mainly introduced during crushing and grinding processes.

[0005] Accordingly, the demagnetizing component mainly consists of a housing, an energized coil, and a magnetically conductive medium. Graphite powder can pass through the housing, and the magnetically conductive medium, which can be an iron cover, separates the graphite powder from the energized coil. Finally, iron filings are adsorbed onto the iron cover. After the energized coil is powered off, a scraping operation is performed on the surface of the iron cover to remove the iron filings, achieving a basic graphite powder demagnetization effect.

[0006] Furthermore, existing structurally improved demagnetizing components primarily focus on optimizing the removal of iron filings, making the process more convenient and thorough. For example, Chinese utility model patent CN207614972U, published on July 17, 2018, discloses an easy-to-clean lithium battery negative electrode crushing and demagnetizing device. Its main structural components include: an inlet, a motor, a second rotating shaft, crushing blades, a screen, a guide plate, a movable plate, a conveyor belt, a support rod, an outlet, a third rotating shaft, a storage box, a chute, and magnetic blocks.

[0007] The crushing and demagnetizing device in this utility model patent has the following functions and advantages: by holding the second handle and pulling up the movable block, the movable block is moved away from the jamming block. Then, the movable plate is rotated to the left to a horizontal position, exposing the right surface of the magnetic block, which facilitates the cleaning of the magnetic block.

[0008] However, when this crushing and demagnetizing device is used for actual demagnetizing operations, it still has at least the following practical shortcomings, specifically including:

[0009] When the movable plate structure rotates open and exposes the magnetic block, the graphite falling channel becomes open. At this time, the graphite material remaining on the screen and guide plate will fall uncontrollably downwards, which can easily cause material to scatter at the open position, affecting the efficiency and cleanliness of the entire demagnetization operation. Utility Model Content

[0010] This application provides a rotary mounting structure, the technical problem to be solved by which the demagnetizing component maintains sufficient external structural integrity during the iron filings removal operation, thereby preventing the small amount of graphite material falling outwards.

[0011] In addition, this application also provides a demagnetizing component including the above-described rotary mounting structure.

[0012] The technical solution adopted by this application to solve the above problems is: a rotary installation structure, including an open fixing plate unit, a rotary cover plate unit that is inserted into the open fixing plate unit at symmetrical positions on both sides and is used to cover the opening position on the open fixing plate unit when the demagnetizing component is energized to adsorb iron filings and when the demagnetizing component is de-energized to remove iron filings, and a magnetic conductive cover unit that is disposed on one side of the rotary cover plate unit and is used to install an energized coil.

[0013] A further preferred technical solution is that the opening fixing plate unit includes a main plate, a through port disposed on the main plate for installing the rotating cover plate unit, and two circular slots disposed on the through port for inserting and installing the rotating cover plate unit.

[0014] A further preferred technical solution is that the rotating cover plate unit includes two mounting shafts respectively inserted into the two circular slots, and a rotating movable plate disposed on the two mounting shafts, with the magnetic shield unit provided on one side, which is used to cover the passage when the demagnetizing component is energized to adsorb iron filings and when the power is cut off to remove iron filings.

[0015] A further preferred technical solution is that the magnetic shield unit includes a plurality of protruding side plates disposed on the rotating movable plate, and a magnetic panel disposed on all the protruding side plates and used to cover the energized coil.

[0016] A further preferred technical solution is that the opening fixing plate unit further includes two pairs of thickened blocks respectively disposed on two sides of the main body plate, with the sides flush with the passage opening, and used to open the circular groove.

[0017] A further preferred technical solution is that the rotating cover plate unit further includes a rotating opening block disposed on the rotating movable plate and located on opposite sides of the magnetic conductive cover unit, and used to pull and rotate the rotating movable plate.

[0018] A further preferred technical solution is that: the opening fixing plate unit further includes a movable plate positioning opening block disposed on the outer side of the main plate and located above the passage, and a fixing rod disposed on the movable plate positioning opening block; the rotating cover plate unit further includes a metal filings removal fixing opening block disposed on the rotating movable plate and selectively connected and fixed by the fixing rod to the rotating opening block.

[0019] A further preferred technical solution is that: the magnetic shield unit further includes a coil wire hole disposed on one of the protruding side plates; the rotating cover plate unit further includes a side slot disposed on the rotating movable plate on the same side as the rotating opening block, for installing the coil wire.

[0020] A further preferred technical solution is that the opening fixing plate unit further includes a lower end face slot disposed on the fixing rod and used to insert and clamp the coil wire, and an anti-fall end block disposed on the upper end face of the fixing rod.

[0021] A demagnetizing component including the above-mentioned rotating installation structure: the structure includes a vertical pipe, an installation port disposed on the vertical pipe for mounting the opening fixing plate unit, an observation port disposed on the vertical pipe for rotating through the rotating cover plate unit, and a transparent observation window disposed on the observation port and removed before the rotating cover plate unit rotates to leave space for the rotating cover plate unit to rotate through.

[0022] The beneficial effects of this application include at least the following five points.

[0023] First, the rotating cover unit in the rotating installation structure can rotate at least 180°, so that the magnetic cover unit can face inward or outward. This ensures that when the structure is energized to adsorb iron filings and when it is de-energized to remove iron filings, the opening on the opening fixing plate unit is always covered by the rotating cover unit, thus preventing the demagnetizing component from leaking out a large amount of material.

[0024] Secondly, the rotating cover unit itself has multiple advantages, including stable installation, convenient rotation, and a stable vertical fixation state after rotation. Regardless of which side faces outward, its vertical state can be fully fixed.

[0025] Third, the magnetic shield unit has the basic function of attracting iron filings when energized, and the outstanding advantage of making it easy to scrape off iron filings. It can completely cover the energized coil and provide a flat surface for easy scraping of iron filings.

[0026] Fourth, the overall structure consisting of the fixed insertion rod, the slotted lower end face, and the anti-fall end block can not only fully fix the rotating cover plate unit in the circumference, but also appropriately clamp and fix the coil wire to prevent the coil from shrinking too much into the demagnetizing component, otherwise it will reduce the efficiency of the demagnetizing operation and increase safety hazards.

[0027] Fifth, for the entire demagnetizing component, the vertical pipe, while adapting to the aforementioned rotary installation structure, also has the advantage of relatively small thickness, thereby increasing the contact between the graphite material and the magnetically conductive panel, ultimately improving the removal rate of ferromagnetic impurities. The specific adaptation method is to appropriately increase the vertical dimensions of the observation port and make the transparent observation window detachable. Attached Figure Description

[0028] Figure 1 This is a schematic diagram showing the location of the rotating cover plate unit in this application.

[0029] Figure 2 This is a structural schematic diagram of the open fixing plate unit in this application.

[0030] Figure 3 This is a schematic diagram of the rotating cover plate unit in this application.

[0031] Figure 4 This is a schematic diagram illustrating the use of the rotating perforated block when the magnetic shield unit faces inward in this application.

[0032] Figure 5 This is a schematic diagram illustrating the use of the opening block for fixing the iron filings when the magnetic shield unit faces outwards in this application.

[0033] Figure 6 This is a schematic diagram showing the location and shape of the slot on the lower end face in this application.

[0034] Figure 7 This is a schematic diagram illustrating the use of the slotted lower end face in this application.

[0035] Figure 8 This is a schematic diagram showing the location of the observation port in this application.

[0036] Figure 9 This is a schematic diagram illustrating the principle of the vertical pipe adaptation rotary installation structure in this application.

[0037] The meanings of the markings in the diagram are as follows.

[0038] a) A small amount of graphite that has fallen off; b) Part of the rotating outline on the upper and lower edges of the rotating movable plate.

[0039] Opening fixing plate unit 1, rotating cover plate unit 2, magnetic conductive cover unit 3;

[0040] Main plate 101, through port 102, circular groove 103, thickened block 104, movable plate positioning hole block 105, fixed insert rod 106, lower end face groove 107, anti-fall end block 108.

[0041] Mounting shaft 201, rotating movable plate 202, rotating opening block 203, opening block for fixing in the scrap removal state 204, side groove 205;

[0042] Protruding side plate 301, magnetic conductive panel 302, coil wire hole 303;

[0043] 4. Vertical pipe; 5. Installation port; 6. Observation port; 7. Transparent observation window; 8. Coil wire. Detailed Implementation

[0044] The following description is merely a preferred embodiment of this application and is not intended to limit the scope of this application.

[0045] like Figures 1-9 As shown, a rotary mounting structure includes an open fixing plate unit 1, a rotary cover plate unit 2 which is inserted into the open fixing plate unit 1 at symmetrical positions on both sides and is used to cover the opening position on the open fixing plate unit 1 when the demagnetizing component is energized to attract iron filings and when the demagnetizing component is de-energized to remove iron filings, and a magnetic conductive cover unit 3 which is disposed on one side of the rotary cover plate unit 2 and is used to install an energized coil.

[0046] In this embodiment, the main body material of the rotary mounting structure is engineering plastic or ordinary aluminum alloy, neither of which is ferromagnetic.

[0047] When the demagnetizing component equipped with this structure performs the operation of attracting iron filings through electricity: the opening fixing plate unit 1 is fixedly installed in a vertical position, and the rotating cover plate unit 2 is fully fixed, also in a vertical position, with the side of the rotating cover plate unit 2 equipped with the magnetic conductive cover unit 3 facing inward, meaning the magnetic conductive cover unit 3 is not visible. At this time, when graphite falls, it approaches or directly impacts the magnetic conductive cover unit 3, thus achieving the basic effect of attracting iron filings through electricity.

[0048] After the above-mentioned demagnetizing components have been used for a period of time, a large amount of iron filings have accumulated on the magnetic shield unit 3. At this time, its strength in adsorbing iron filings has been significantly reduced, so it is necessary to carry out a concentrated removal operation of iron filings.

[0049] Generally, the above operations include the following steps in sequence:

[0050] S1. If the upstream of the demagnetizing component, such as the grinding machine, is stopped, or during the interval between batch grinding operations, the following operations are performed;

[0051] S2. Release the vertical fixation state of the rotating cover unit 2 and rotate it 180° so that the magnetic conductive cover unit 3, which was originally inside, is exposed and visible.

[0052] S3. Re-fix the vertical state of the rotating cover unit 2, which is now upside down;

[0053] S4. Cut off the power supply to the energized coil. At this time, a small amount of iron filings may fall off spontaneously, but the iron filings are mainly scraped off from top to bottom on the rotating cover unit 2 by a non-ferromagnetic scraper.

[0054] S5. Release the fixing effect on the rotating cover unit 2 again, then rotate the rotating cover unit 2 in the opposite direction until it returns to the initial vertical state, and finally fix the vertical state again to complete a complete iron filings collection and removal operation.

[0055] In S2, S3 and S4, the rotating cover plate unit 2 still covers the opening position on the opening fixing plate unit 1. For the demagnetizing component, its external structural integrity is maintained. At this time, the small amount of graphite a that cannot be completely avoided falling out is less likely to fall out and scatter, which ultimately indirectly improves the efficiency, cleanliness and safety of the entire demagnetizing operation.

[0056] The opening fixing plate unit 1 includes a main plate 101, a through port 102 disposed on the main plate 101 for mounting the rotating cover plate unit 2, and two circular slots 103 disposed on the through port 102 for inserting and mounting the rotating cover plate unit 2.

[0057] In this embodiment, the main body plate 101 is rectangular in shape and has a ring of mounting holes for mounting and fixing on the entire demagnetizing component. The passage 102 is also rectangular in shape, with both its long side and the long side of the main body plate 101 being vertical. At the center of each of the two vertical surfaces of the passage 102, a circular groove 103 is provided, allowing the rotating cover unit 2 to rotate into and out of the passage 102.

[0058] The rotating cover unit 2 includes two mounting shafts 201 respectively inserted into the two circular slots 103, and a rotating movable plate 202 that is mounted on the two mounting shafts 201, with the magnetic cover unit 3 on one side, and is used to cover the passage 102 when the demagnetizing component is energized to adsorb iron filings and when the power is cut off to remove iron filings.

[0059] In this embodiment, the rotating movable plate 202 is also rectangular in shape, with its width being 1-2 cm smaller than the width of the through opening 102 and its length being 2-4 cm smaller than the length of the through opening 102, to ensure that the rotating movable plate 202 can rotate and that the gap between the two is as narrow as possible.

[0060] When installing the rotating cover unit 2, the mounting shaft 201 can be inserted first, and then the mounting shaft 201 and the rotating movable plate 202 can be welded together. Alternatively, the rotating movable plate 202 can have sufficient elasticity and be integrally formed with the mounting shaft 201, but can allow the mounting shaft 201 to smoothly engage with the circular groove 103 by slightly bending laterally.

[0061] The magnetic shield unit 3 includes a plurality of protruding side plates 301 disposed on the rotating movable plate 202, and a magnetic panel 302 disposed on all the protruding side plates 301 and used to cover the energized coil.

[0062] In this embodiment, the protruding side plate 301 is made of plastic, and the magnetic panel 302 is made of iron. The latter can effectively achieve and appropriately enhance the adsorption effect of the energized coil on iron filings.

[0063] The number of protruding side plates 301 is 4, of which 3 are integrally formed with the rotating movable plate 202, and the remaining 1 is screwed to the rotating movable plate 202. The magnetic conductive panel 302 is snapped or screwed together with the above 4 protruding side plates 301 to ensure that the energized coil is completely covered and iron filings cannot be directly adsorbed on it, otherwise the iron filings would be difficult to remove.

[0064] The opening fixing plate unit 1 also includes two pairs of thickened blocks 104, which are respectively disposed on two sides of the main body plate 101, with the sides flush with the through opening 102, and used to open the circular groove 103.

[0065] In this embodiment, there are a total of 4 thickening blocks 104, which are arranged in pairs to correspond to 2 mounting shafts 201. They are integrally formed with the main body plate 101. Their main function is to remove the restriction on the thickness of the mounting shafts 201, so that their diameter can be greater than the thickness of the main body plate 101, thereby improving the installation stability of the entire rotating cover unit 2.

[0066] The circular groove 103 is simultaneously provided on the main body plate 101 and on two thickened blocks 104, and its diameter can be, for example, 1.5-2.0 times the thickness of the main body plate 101.

[0067] The rotating cover plate unit 2 also includes a rotating opening block 203 disposed on the rotating movable plate 202 and located on opposite sides of the magnetic conductive cover unit 3, and used to pull and rotate the rotating movable plate 202.

[0068] In this embodiment, when the magnetic shield unit 3 faces inward and the structure is energized to attract iron filings, the rotating opening block 203 is located on the upper part of the outer side, and its first function is:

[0069] At this time, the upper part of the rotating movable plate 202 needs to be rotated outward and moved outward. The rotating perforated block 203 can be used as the force application position for this rotation action. That is, after hooking the rotating perforated block 203, it moves outward and downward, which makes the above rotation action more convenient and eliminates the need for the operator to bend over and push the lower part of the rotating movable plate 202 inward.

[0070] Specifically, the rotating movable plate 202 and the rotating perforated block 203 are integrally formed, and the latter has a specific structure of a cuboid block with a circular hole.

[0071] The opening fixing plate unit 1 further includes a movable plate positioning opening block 105 disposed on the outer side of the main plate 101 and located above the passage 102, and a fixing rod 106 disposed on the movable plate positioning opening block 105; the rotating cover plate unit 2 further includes a metal filings removal fixing opening block 204 disposed on the rotating movable plate 202 and selectively inserted and fixed by the fixing rod 106 to the rotating opening block 203.

[0072] In this embodiment, the rotating perforated block 203, the movable plate positioning perforated block 105, and the iron filings removal and fixing perforated block 204 can be set to have the same material, shape, and size.

[0073] The movable plate positioning hole block 105 is selectively aligned with either the rotating hole block 203 or the iron filings removal state fixing hole block 204, thereby ensuring that the vertical state of the rotating movable plate 202 can be fully fixed when the structure is adsorbing iron filings or removing iron filings, thus preventing it from rotating spontaneously.

[0074] Correspondingly, when the magnetic shield unit 3 faces the interior of the demagnetizing component, the rotating opening block 203 is located on the upper outer side, and the iron filings removal state fixing opening block 204 is located on the lower inner side.

[0075] The magnetic shield unit 3 also includes a coil wire hole 303 disposed on one of the protruding side plates 301; the rotating cover plate unit 2 also includes a side slot 205 disposed on the rotating movable plate 202 and on the same side as the rotating opening block 203, for installing the coil wire.

[0076] In this embodiment, when the magnetic shield unit 3 faces the interior of the demagnetizing component, the coil wire hole 303 is located at the top, and the side slot 205 is also located at the top of the rotating movable plate 202. Therefore, during the subsequent rotation of the rotating movable plate 202, this side position rotates outward, making it less likely for the coil wire 8 to be clamped or pulled excessively.

[0077] On the other hand, an elastic ring structure can be set at the coil wire hole 303 and the side slot 205 to prevent graphite material from obviously leaking out at the former position and to prevent graphite material from obviously falling into the magnetic shield unit 3 at the latter position.

[0078] Furthermore, when the magnetic shield unit 3 faces the interior of the demagnetizing component, the protruding side plate 301 with the coil wire hole 303 corresponds to the upper end surface of the entire magnetic shield unit 3, so it is inclined to avoid the accumulation of a large amount of graphite at this location.

[0079] The opening fixing plate unit 1 also includes a lower end face slot 107 disposed on the fixing rod 106 and used to insert and clamp the coil wire, and an anti-fall end block 108 disposed on the upper end face of the fixing rod 106.

[0080] In this embodiment, the fixing rod 106, combined with the slot 107 on the lower end face, gives the overall structure the following additional functions:

[0081] When the magnetic shield unit 3 faces the inside of the demagnetizing component, i.e. when the energized coil is in normal use, the slot 107 on the lower end face can prevent the coil wire 8 from shrinking significantly into the side slot 205, otherwise it will hinder the normal falling of graphite and affect the demagnetizing efficiency.

[0082] The function of the anti-fall end block 108 is to ensure that when the fixed insertion rod 106 is simultaneously inserted into the movable plate positioning hole block 105 and the rotation hole block 203, or simultaneously inserted into the movable plate positioning hole block 105 and the iron filings removal state fixing hole block 204, the above-mentioned insertion state will not be automatically released.

[0083] A demagnetizing component including the above-mentioned rotating installation structure: the structure includes a vertical pipe 4, an installation port 5 disposed on the vertical pipe 4 for mounting the opening fixing plate unit 1, an observation port 6 disposed on the vertical pipe 4 for rotating through the rotating cover plate unit 2, and a transparent observation window 7 disposed on the observation port 6 and removed before the rotating cover plate unit 2 rotates to leave space for the rotating cover plate unit 2 to rotate through.

[0084] In this embodiment, the vertical pipe 4 is also made of non-magnetic materials such as plastic, and it is a rectangular tube arranged vertically. The mounting port 5 and the observation port 6 are symmetrically arranged, both of which are rectangular in shape, with the former having larger length and width dimensions than the latter. The main body plate 101 is screwed onto the mounting port 5, and the transparent observation window 7 is screwed or snapped onto the observation port 6.

[0085] On the other hand, the lateral dimension of the observation port 6 is greater than the width of the rotating movable plate 202, but its vertical dimension is smaller than the length of the rotating movable plate 202. The aforementioned vertical dimension only needs to satisfy the requirement that the rotating movable plate 202 can rotate through it.

[0086] Because of the detachable nature of the transparent observation window 7, the thickness of the vertical pipe 4 can be relatively small, less than half the length of the rotating movable plate 202, which ultimately increases the probability of the graphite material impacting the magnetically conductive panel 302, or allows it to approach the graphite material and the magnetically conductive panel 302 laterally, thereby improving the efficiency and extent of the demagnetization operation.

[0087] Correspondingly, the realization of the above-mentioned beneficial effects also requires that the installation port 5 and the observation port 6 be fully aligned vertically and horizontally.

[0088] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this application. These are non-inventive modifications and are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. A rotary mounting structure, characterized in that: The device includes an opening fixing plate unit (1), a rotating cover plate unit (2) which is inserted into the opening fixing plate unit (1) at symmetrical positions on both sides and is used to cover the opening position on the opening fixing plate unit (1) when the demagnetizing component is energized to adsorb iron filings and when the demagnetizing component is de-energized to remove iron filings, and a magnetic shield unit (3) which is disposed on one side of the rotating cover plate unit (2) and is used to install an energized coil.

2. The rotary mounting structure according to claim 1, characterized in that: The opening fixing plate unit (1) includes a main plate (101), a through port (102) disposed on the main plate (101) for installing the rotating cover plate unit (2), and two circular slots (103) disposed on the through port (102) for inserting and installing the rotating cover plate unit (2).

3. The rotary mounting structure according to claim 2, characterized in that: The rotating cover unit (2) includes two mounting shafts (201) respectively inserted into the two circular slots (103), and a rotating movable plate (202) disposed on the two mounting shafts (201), with the magnetic cover unit (3) on one side, which is used to cover the passage (102) when the demagnetizing component is energized to adsorb iron filings and de-energized to remove iron filings.

4. The rotary mounting structure according to claim 3, characterized in that: The magnetic shield unit (3) includes a plurality of protruding side plates (301) disposed on the rotating movable plate (202), and a magnetic panel (302) disposed on all the protruding side plates (301) and used to cover the energized coil.

5. A rotary mounting structure according to claim 2, characterized in that: The opening fixing plate unit (1) also includes two pairs of thickened blocks (104) respectively disposed on two sides of the main body plate (101), with the sides flush with the through opening (102) and used to open the circular groove (103).

6. The rotary mounting structure according to claim 4, characterized in that: The rotating cover plate unit (2) further includes a rotating opening block (203) disposed on the rotating movable plate (202) and located on opposite sides of the magnetic shielding body unit (3), and used to pull and rotate the rotating movable plate (202).

7. A rotary mounting structure according to claim 6, characterized in that: The opening fixing plate unit (1) further includes a movable plate positioning opening block (105) disposed on the outer side of the main plate (101) and located above the passage (102), and a fixing rod (106) disposed on the movable plate positioning opening block (105); the rotating cover plate unit (2) further includes a metal filings removal fixing opening block (204) disposed on the rotating movable plate (202) and selectively inserted and fixed by the fixing rod (106) along with the rotating opening block (203).

8. The rotary mounting structure according to claim 7, characterized in that: The magnetic shield unit (3) further includes a coil wire hole (303) provided on one of the protruding side plates (301); the rotating cover unit (2) further includes a side slot (205) provided on the rotating movable plate (202) on the same side as the rotating opening block (203) for installing the coil wire.

9. A rotary mounting structure according to claim 8, characterized in that: The opening fixing plate unit (1) further includes a lower end face slot (107) disposed on the fixing rod (106) and used to insert and clamp the coil wire, and an anti-fall end block (108) disposed on the upper end face of the fixing rod (106).

10. A demagnetizing component comprising the rotary mounting structure as described in any one of claims 1-9, characterized in that: The structure includes a vertical pipe (4), an installation port (5) provided on the vertical pipe (4) for setting the opening fixing plate unit (1), an observation port (6) provided on the vertical pipe (4) for rotating through the rotating cover plate unit (2), and a transparent observation window (7) provided on the observation port (6) and removed before the rotating cover plate unit (2) rotates to leave space for the rotating cover plate unit (2) to rotate.

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