Clamping mechanism for air filter or iodine adsorber

Abstract

The invention relates to a clamping mechanism for an air filter or an iodine adsorber, which comprises a driving shaft, a first sliding block and at least one second sliding block, the driving shaft penetrates through the first sliding block and the second sliding block, and the driving shaft is connected with the first sliding block through matching of an internal thread and an external thread; the clamp assembly comprises an L-shaped clamping plate and a plurality of connecting blocks movably connected with the L-shaped clamping plate; the connecting block is movably connected with the first sliding block and the second sliding block. The driving shaft moves in the axial direction, and the L-shaped clamping plate is driven to move back and forth in the direction perpendicular to the axial direction of the driving shaft through the first sliding block, the second sliding block and the connecting block, so that clamping and loosening of the clamping mechanism are achieved. The device is simple in overall structure, small in occupied space, suitable for specific application scenes with narrow spaces, convenient to install and high in stability.

Description

Technical Field

[0001] The invention relates to the field of nuclear air purification experimental equipment, in particular to a clamping mechanism for an air filter or an iodine adsorber. Background Art

[0002] Radioactive fission products will be produced in the normal operation of nuclear power plants and nuclear facilities and in accident operation conditions. When various equipment and pipelines are defective or leaking, these fission products will diffuse into the atmosphere. They are mainly present in the air as radioactive aerosols and radioactive iodine. In order to ensure the safety and reliability of nuclear power plants and nuclear facilities, radioactive aerosols are usually filtered with high-efficiency air filters, and radioactive iodine is adsorbed with iodine adsorbers. In order to avoid the leakage of pollutants, the frame usually requires good sealing when the high-efficiency air filter or iodine adsorber works normally. A common practice is to add a sealing gasket to the side of the high-efficiency air filter or iodine adsorber, and clamp the high-efficiency air filter or iodine adsorber in work or experiment, so that the side with the sealing gasket is close to the box, but the device for clamping the high-efficiency air filter or iodine adsorber often has various defects that cause pollutant leakage. In recent years, high-efficiency filters and iodine adsorbers have been used for gas purification in complex environments, so higher requirements are put forward for the adaptability of the clamping device of the filter. At the same time, considering the limited space in the high-efficiency air filter or iodine adsorber, it is urgent to be able to adapt to the narrow space environment and a stable and reliable clamping device.

[0003] In the prior art, patent CN101293161A discloses a clamping mechanism for an air purification filter device, including a pull rod, an upper clamp plate, a lower clamp plate, and a left hinge component and a right hinge component installed between the upper clamp plate and the lower clamp plate, and the clamping mechanism is clamped by the cooperation of the two ends of the pull rod with the left and right hinge components. Although the above patent discloses a clamping mechanism suitable for an air purification filter device, it occupies a large space, is complicated to install, and has poor stability after installation. Patent CN115968423A discloses a clamping system and a filter mechanism and method, which use a sliding pin mechanism for locking to achieve clamping. The above patent has a complex structure, high complexity in operation, and is not easy to install. Therefore, there is an urgent need for a targeted solution for a clamping device that is adaptable to narrow spaces and is simple to operate, stable and reliable.

[0004] In view of the above problems, the present invention is proposed. Summary of the invention

[0005] The invention discloses a clamping mechanism for an air filter or an iodine adsorber, aiming to solve the technical problems existing in the prior art.

[0006] The present invention provides a clamping mechanism for an air filter or an iodine adsorber, comprising a sliding assembly 11, wherein the sliding assembly 11 is provided with a driving shaft 113 and a first slider 111 and at least one second slider 112 for the driving shaft 113 to pass through, and the driving shaft 113 is connected to the first slider 111 by matching internal and external threads;

[0007] A clamp assembly 12 connected to a driving shaft 113 via a first slider 111 and a second slider 112, the clamp assembly 12 comprising an L-shaped clamp plate 121 and a plurality of connecting blocks 123 movably connected to the L-shaped clamp plate 121, wherein the number of the connecting blocks 123 is the same as the total number of the first slider 111 and the second slider 112;

[0008] The connecting block 123 is movably connected to the first slider 111 and the second slider 112 respectively;

[0009] The driving shaft 113 moves axially, and drives the L-shaped clamping plate 121 to move back and forth in a direction perpendicular to the axial direction of the driving shaft 113 through the first slider 111, the second slider 112 and the connecting block 123, so as to achieve clamping and loosening of the clamping mechanism.

[0010] As a preferred technical solution, the first slider 111 is provided with a first through hole 111 a , and the first through hole 111 a is provided with an internal thread that matches with the external thread provided on the outer surface of one side of the driving shaft 113 to form a connection.

[0011] As a preferred technical solution, the sliding assembly 11 also includes a slider fixing plate 114, which is arranged on the sides of the first slider 111 and the second slider 112 and is connected to the first slider 111 and the second slider 112 by welding, so that the distance between the first slider 111 and the second slider 112 remains unchanged.

[0012] As a preferred technical solution, the number of the slider fixing plates 114 is 1 or 2.

[0013] As a preferred technical solution, the connecting block 123 is movably connected to the first slider 111 and the second slider 112 via pin connections.

[0014] As a preferred technical solution, the drive shaft 113 is a long column, which rotates under the action of external force to generate the driving force of the clamping mechanism. In the first working state, the drive shaft 113 moves axially upward, and in the second working state, the drive shaft 113 moves axially downward.

[0015] As a preferred technical solution, in the first working state, the sliding assembly 11 moves axially upward under the action of the driving shaft 113, and the L-shaped clamping plate 121 is in a naturally drooping state, so that the clamping mechanism is relaxed.

[0016] As a preferred technical solution, in the second working state, the sliding assembly 11 moves axially downward under the action of the driving shaft 113, and the L-shaped clamp 121, driven by the first slider 111, the second slider 112 and the connecting block 123, moves away from the driving shaft 113 in a direction perpendicular to the axial direction of the driving shaft 113, so that the clamping mechanism is clamped.

[0017] As a preferred technical solution, it also includes a fixing assembly 10 having a first fixing platform 101 and a second fixing platform 102. The clamping mechanism can be installed in the box body 2. The first fixing platform 101 is connected to the top wall of the box body 2, and the second fixing platform 102 is connected to the side wall of the box body 2.

[0018] As a preferred technical solution, the first fixing platform 101 and the second fixing platform 102 are welded to the box body 2 respectively.

[0019] As a preferred technical solution, a limiting assembly 13 is further provided, including a limiting block 132 arranged at the bottom and a limiting column 131 located above the limiting block 132 , and the limiting column 131 passes through the L-shaped clamping plate short side 121 b of the L-shaped clamping plate 121 .

[0020] As a preferred technical solution, the length of the limiting column 131 is greater than the length of the trajectory of the axial movement of the driving shaft 113 .

[0021] As a preferred technical solution, the length of the long side 121 a of the L-shaped clamping plate 121 is greater than the length of the driving shaft 113 .

[0022] The technical solution adopted by the present invention can achieve at least one of the following beneficial effects:

[0023] 1. The present invention adopts a specific driving shaft to generate driving force through its own rotation, and drives the L-shaped clamping plate to produce displacement through a slider, a connecting block, etc., so as to achieve the clamping and loosening of the high-efficiency air filter or the iodine adsorber. The overall structure is simple and occupies a small space, which is suitable for specific application scenarios with narrow space.

[0024] 2. The specific structural design of the present invention allows the clamping mechanism to be installed close to one side of the box body. With the help of the first fixing platform and the second fixing platform, the complexity of the installation operation is greatly simplified, and the invention has the characteristics of easy installation and strong adaptability.

[0025] 3. The matching arrangement of the external thread of the drive shaft of the present invention and the internal thread of the first through hole in the first sliding block embodies the self-locking property of the thread, greatly increasing the stability of the overall clamping mechanism and the reliability of the clamping state.

[0026] 4. The present invention provides a limit assembly to limit the displacement trajectory of the L-shaped clamping plate, thereby increasing the stability and reliability of the overall clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments, which constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions explain the present invention and do not constitute improper limitations on the present invention. In the drawings:

[0028] Figure 1 It is an exploded perspective schematic diagram of a clamping mechanism for an air filter or an iodine adsorber of the present invention;

[0029] Figure 2 It is a three-dimensional schematic diagram of the installation state of the clamping mechanism for an air filter or an iodine adsorber of the present invention;

[0030] Figure 3 It is a top view schematic diagram of the clamping mechanism for an air filter or an iodine adsorber of the present invention installed on a box body;

[0031] Figure 4 For the present invention Figure 3 Cross-sectional view along line AA;

[0032] Figure 5 It is a top view schematic diagram of the clamping mechanism for an air filter or an iodine adsorber of the present invention installed on a box body;

[0033] Figure 6 For the present invention Figure 5 Cross-sectional view along line BB;

[0034] Figure 7 It is a schematic diagram of the clamping mechanism for an air filter or an iodine adsorber of the present invention in a first working state;

[0035] Figure 8 It is a schematic diagram of the clamping mechanism for an air filter or an iodine adsorber of the present invention in a second working state.

[0036] Description of reference numerals:

[0037] 1. Clamping mechanism; 10. Fixing assembly; 101. First fixing platform; 102. Second fixing platform; 11. Sliding assembly; 111. First slider; 111a. First through hole; 112. Second slider; 112a. Second through hole; 113. Driving shaft; 114. Slider fixing plate; 12. Clamp assembly; 121. L-shaped clamping plate; 121a. Long side of L-shaped clamping plate; 121b. Short side of L-shaped clamping plate; 121c. First connecting ear; 121d. Second connecting ear; 121e. Third through hole; 122. First pin; 123. Connecting block; 123a. Fourth through hole; 123b. Third connecting ear; 124. Second pin; 13. Limiting assembly; 131. Limiting column; 132. Limiting block; 2. Box body. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. In the description of the present invention, it should be noted that the term "or" is usually used in the sense of including "and / or", unless the content clearly indicates otherwise.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a magnetic connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In order to solve the problems existing in the prior art, an embodiment of the present invention provides a clamping mechanism for an air filter or an iodine adsorber, especially a clamping mechanism suitable for a nuclear-grade high-efficiency air filter or an iodine adsorber, such as Figure 1-Figure 7 As shown, it includes a fixing component 10, a sliding component 11, a clamp component 12 and a limiting component 13, as shown in FIG. Figure 2 As shown, the sliding assembly 11 is connected to the fixing assembly 10 and is installed on the box body 2 through the positioning and fixing of the fixing assembly 10. The clamping mechanism 1 for the air filter or iodine adsorber is installed vertically and parallel to the side wall inside the box body 2. Figure 7 The direction of the clamping mechanism 1 in use state is shown as the standard, the sliding component 11 is located above the limit component 13, and is used to provide power for the movement of the clamp component 12, and the limit component 13 located below is used to limit the movement trajectory of the clamp component 12; the upper and lower parts of the clamp component 12 are respectively connected to the sliding component 11 and the limit component 13, and the clamping and loosening of the overall clamping mechanism 1 are achieved by moving the position of the clamp component 12.

[0042] like Figure 1 and Figure 7As shown, the fixing assembly 10 includes a first fixing platform 101 and a second fixing platform 102. The first fixing platform 101 and the second fixing platform 102 are both block structures, such as block structures of any shape such as a square block, a rectangular block, etc. The first fixing platform 101 and the second fixing platform 102 are both provided with mounting holes for the sliding assembly 11 to be connected thereto. The mounting holes can be through holes or blind holes. The first fixing platform 101 is arranged to be integrated with the frame of the box body 2. The side of the first fixing platform 101 with the mounting hole is fitted with the top of the frame of the box body 2. The second fixing platform 102 is also fixedly connected to the frame of the box body 2. The second fixing platform 102 is located inside the box body 2 and is fixedly connected to the side wall of the frame of the box body 2. The connection method can be welding, bolts and nuts and other fastening connection methods. The side of the second fixing platform 102 with the mounting hole faces the top of the frame of the box body 2. The sliding assembly 11 is arranged between the first fixing platform 101 and the second fixing platform 102, and is connected to the mounting holes of the first fixing platform 101 and the second fixing platform 102 respectively.

[0043] like Figure 1 and Figure 6 As shown, the sliding assembly 11 includes a driving shaft 113. The driving shaft 113 is in the form of a long cylinder with convex heads at both ends. The shape of the convex heads corresponds to the mounting holes of the first fixed platform 101 and the second fixed platform 102, and is used for insertion and connection with the first fixed platform 101 and the second fixed platform 102. An external thread is provided on one side of the axial surface of the driving shaft 113. The sliding assembly 11 also includes a first slider 111. The first slider 111 is provided with a first through hole 111a on it for the driving shaft 113 to pass through. The first through hole 111a of the first slider 111 is provided with an internal thread corresponding to the external thread of the driving shaft 113. The first slider 111 is connected to the external thread of the driving shaft 113 by matching with the external thread of the driving shaft 113 through the internal thread. One end of the driving shaft 113 with the external thread is connected to the first fixed platform 101. The sliding assembly 11 also includes a second slider 112. The second slider 112 is provided with a second through hole 112a, which is also for the driving shaft 113 to pass through. Figure 7 The second slider 112 is located below the first slider 111, and one end of the driving shaft 113 close to the second slider 112 is connected to the second fixing platform 102. The sliding assembly 11 is also provided with a slider fixing plate 114, as shown in FIG. Figure 1 As shown, it is located on the side of the first slider 111 and the second slider 112. Preferably, the number of the slider fixing plates 114 can be two, which are connected to the first slider 111 and the second slider 112 by welding or threading, so that the distance between the first slider 111 and the second slider 112 remains unchanged. Figure 7 As shown, in the first working state, the driving shaft 113 rotates to make the first slider 111, the second slider 112 and the slider fixing plate 114 move upward; Figure 8As shown, in the second working state, the driving shaft 113 rotates to move the first slider 111, the second slider 112 and the slider fixing plate 114 downward.

[0044] The clamp assembly 12 includes an L-shaped clamping plate 121, which is connected to the first slider 111 and the second slider 112 through a connecting piece formed by a first pin 122, a connecting block 123 and a second pin 124. The L-shaped clamping plate 121 moves when the driving shaft 113 drives the first slider 111 and the second slider 112 to move, so as to form a loosening and clamping working state of the entire clamping mechanism 1, such as Figure 7-8 As shown, that is, the first working state and the second working state. Figure 1 As shown, the L-shaped clamping plate 121 includes an L-shaped clamping plate long side 121a, preferably, the L-shaped clamping plate long side 121a is set to a long rectangular strip, and a first connecting ear 121c and a second connecting ear 121d are respectively provided thereon, and the distance between the first connecting ear 121c and the second connecting ear 121d is equal to the distance between the first slider 111 and the second slider 112, and a third through hole 121e is provided on the first connecting ear 121c and the second connecting ear 121d for the first pin 122 to pass through. At the same time, a fourth through hole 123a and a third connecting ear 123b are provided on the connecting block 123, and the first pin 122 and the second pin 124 are respectively passed through, so as to connect the L-shaped clamping plate 121 with the first slider 111 and the second slider 112. During installation, taking the first connecting ear 121c as an example, the fourth through hole 123a on the connecting block 123 is placed between the first connecting ears 121c on the long side 121a of the L-shaped clamp, and the fourth through hole 123a is aligned with the hole on the first connecting ear 121c, and the first pin 122 passes through the hole to form a pin connection. Similar to the above principle, the third connecting ear 123b located on the other side of the connecting block 123 is pin-connected with the first slider 111 through the second pin 124. The second connecting ear 121d of the long side 121a of the L-shaped clamp forms a pin connection with another connecting block 123 in accordance with the above principle. At the same time, the connecting block 123 and the second slider 112 are also pin-connected through the second pin 124. The L-shaped clamp 121 also includes an L-shaped clamp short side 121b, which is used to connect with the limit assembly 13. The short side 121 b of the L-shaped clamping plate is also a long rectangular strip. One end of the short side 121 b of the L-shaped clamping plate away from the long side 121 a of the L-shaped clamping plate is provided with a through hole for the limiting assembly 13 to be connected thereto.

[0045] The limiting assembly 13 includes a limiting column 131 and a limiting block 132. The limiting column 131 is in the shape of a solid long column, and a pointed flange is provided at one end thereof for connection with the limiting block 132. A blind hole is provided on the side of the limiting block 132 facing the limiting column 131, and the size of the blind hole matches the pointed flange of the limiting column 131, for insertion of the limiting column 131. In order to increase the convenience of installation and better limit the movement trajectory of the L-shaped clamping plate 121, preferably, the other end of the limiting column 131 is configured as a cylinder, and the radius of the cylinder is slightly larger than the radius of the long cylinder of the limiting column 131. The limit block 132 is a block structure, for example, a square block, a rectangular block or any other shape. The thickness of the limit block 132 is set according to the height of the box 2 and the height of the second fixed platform. Preferably, by adjusting the thickness of the limit block 132, the top surface of the cylinder of the limit column 131 is separated from the bottom surface of the second fixed platform 102 and maintains a certain distance, thereby ensuring that the L-shaped clamp 121 of the clamp assembly 12 has sufficient displacement space to achieve clamping and loosening.

[0046] Through the above structural design, when in use, that is, after installing the air filter or iodine adsorber inside the box 2, the sliding assembly 11 is moved in the vertical direction by the rotation of the driving shaft 113, so that under the combined action of the connecting block 123, the limiting column 131 and the limiting block 132, the L-shaped clamping plate 121 is driven to move in the horizontal direction, and finally the loosening and clamping states of the clamping mechanism 1 are achieved. Figure 7 As shown, in the first working state, when the air filter or iodine adsorber needs to be loosened (in the loose state), the drive shaft 113 is twisted to rotate, and the first slider 111, the second slider 112 and the slider fixing plate 114 move upward through the rotation, so that the L-shaped clamping plate 121 naturally droops under the action of gravity. The connecting block 123 is in a natural drooping state at this time, and forms a certain angle with the drive shaft 113 and the long side 121a of the L-shaped clamping plate respectively. This angle is less than 90°. At this time, the air filter or iodine adsorber can be taken out. Figure 8As shown, in the second working state, that is, when the air filter or iodine adsorber needs to be clamped (in the clamped state), the upper cover of the box body 2 is opened, and the drive shaft 113 is twisted to rotate it, so that the first slider 111, the second slider 112 and the slider fixing plate 114 move downward, so that the connecting block 123 is transformed into a state of 90° with the drive shaft 113 during the movement. At this time, the long side 121a of the L-shaped clamping plate is displaced to the side away from the drive shaft 113 as the connecting block 123 moves, and at the same time , the short side 121b of the L-shaped clamp moves to the lower right; in the fully clamped state, the two connecting blocks 123 are respectively on the same horizontal plane with the first connecting ear 121c and the second connecting ear 121d of the long side 121a of the L-shaped clamp, and the bottom surface of the short side 121b of the L-shaped clamp fits with the side of the limit block 132 with a blind hole, thereby limiting its continued movement. At the same time, the threads between the first slider 111 and the drive shaft 113 are matched and self-locking, which prevents loosening to a certain extent, thereby ensuring the effect of the clamped state.

[0047] Compared with the prior art solution of clamping two clamps on the left and right sides by driving a pull rod, the present invention only needs to install the L-shaped clamp 121 on one side, and the space occupied is equivalent to only a part of the prior art solution, which saves more space and is more suitable for narrow space applications in work scenes; at the same time, the structural design of the present invention is simpler and easier to install.

[0048] In some preferred embodiments, in order to ensure that the top surface of the cylinder of the limiting column 131 can be separated from the bottom surface of the second fixing platform 102 and maintain a certain distance, such as Figure 2 As shown, the length of the long side 121 a of the L-shaped clamping plate is greater than the length of the driving shaft 113 .

[0049] In some preferred embodiments, in order to reduce the excessive restriction of the limit column 131 on the displacement of the short side 121b of the L-shaped clamp, the length of the limit column 131 is designed to be greater than the maximum length of the upward and downward displacements of the drive shaft 113, that is, to ensure that the displacement of the short side 121b of the L-shaped clamp driven by the movement of the drive shaft 113 is less than the length of the limit column 131.

[0050] In some preferred embodiments, in order to increase the connection effect between the drive shaft 113 and the L-shaped clamp 121, the number of second sliders 112 can be 1-3, and accordingly, the number of connecting blocks 123 is 2-4, that is, the number of connecting blocks 123 is the same as the sum of the number of first sliders 111 and second sliders 112.

[0051] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A clamping mechanism for an air filter or an iodine adsorber, characterized in that: The sliding assembly (11) comprises a driving shaft (113) and a first sliding block (111) and at least one second sliding block (112) for the driving shaft (113) to pass through, wherein the driving shaft (113) and the first sliding block (111) are connected to each other by matching internal and external threads; A clamp assembly (12) connected to the driving shaft (113) via the first slider (111) and the second slider (112), the clamp assembly (12) comprising an L-shaped clamp plate (121) and a plurality of connection blocks (123) movably connected to the L-shaped clamp plate (121), the number of the connection blocks (123) being the same as the total number of the first slider (111) and the second slider (112); The connecting block (123) is movably connected to the first slider (111) and the second slider (112) respectively; The driving shaft (113) moves axially, and drives the L-shaped clamping plate (121) to move back and forth in a direction perpendicular to the axial direction of the driving shaft (113) through the first slider (111), the second slider (112) and the connecting block (123), so as to achieve clamping and loosening of the clamping mechanism.

2. The clamping mechanism for an air filter or an iodine adsorber according to claim 1, characterized in that: The first sliding block (111) is provided with a first through hole (111a), and the first through hole (111a) is provided with an internal thread, which matches with the external thread provided on the outer surface of one side of the driving shaft (113) to form a connection.

3. The clamping mechanism for an air filter or an iodine adsorber according to claim 1, characterized in that: The sliding assembly (11) further comprises a slider fixing plate (114), which is arranged on the side surfaces of the first slider (111) and the second slider (112) and is connected to the first slider (111) and the second slider (112) by welding, so that the distance between the first slider (111) and the second slider (112) remains unchanged.

4. The clamping mechanism for an air filter or an iodine adsorber according to claim 3, characterized in that: The number of the slider fixing plates (114) is 1 or 2.

5. The clamping mechanism for an air filter or an iodine adsorber according to claim 1, characterized in that: The connecting block (123) is movably connected to the first sliding block (111) and the second sliding block (112) via pin connections.

6. The clamping mechanism for an air filter or an iodine adsorber according to claim 1, characterized in that: The drive shaft (113) is in the form of a long column and rotates under the action of an external force to generate a driving force for the clamping mechanism. In a first working state, the drive shaft (113) moves axially upward, and in a second working state, the drive shaft (113) moves axially downward.

7. The clamping mechanism for an air filter or an iodine adsorber according to claim 6, characterized in that: In the first working state, the sliding component (11) moves axially upward under the action of the driving shaft (113), and the L-shaped clamping plate (121) is in a naturally drooping state, so that the clamping mechanism is relaxed.

8. The clamping mechanism for an air filter or an iodine adsorber according to claim 6, characterized in that: In the second working state, the sliding assembly (11) moves axially downward under the action of the driving shaft (113), and the L-shaped clamping plate (121) is driven by the first slider (111), the second slider (112) and the connecting block (123) to move away from the driving shaft (113) in a direction perpendicular to the axis of the driving shaft (113), so that the clamping mechanism is clamped.

9. The clamping mechanism for an air filter or an iodine adsorber according to any one of claims 1 to 7, characterized in that: It also includes a fixing assembly (10) having a first fixing platform (101) and a second fixing platform (102); the clamping mechanism can be installed in a box body (2); the first fixing platform (101) is connected to the top wall of the box body (2); and the second fixing platform (102) is connected to the side wall of the box body (2).

10. The clamping mechanism for an air filter or an iodine adsorber according to claim 9, characterized in that: The first fixing platform (101) and the second fixing platform (102) are respectively welded to the box body (2).

11. The clamping mechanism for an air filter or an iodine adsorber according to any one of claims 1 to 7, characterized in that: A limiting assembly (13) is also provided, comprising a limiting block (132) arranged at the bottom and a limiting column (131) located above the limiting block (132), wherein the limiting column (131) passes through the L-shaped clamping plate short side (121b) of the L-shaped clamping plate (121).

12. The clamping mechanism for an air filter or an iodine adsorber according to claim 11, characterized in that: The length of the limiting column (131) is greater than the length of the trajectory of the axial movement of the driving shaft (113).

13. The clamping mechanism for an air filter or an iodine adsorber according to any one of claims 1 to 7, characterized in that: The length of the L-shaped clamping plate long side (121a) of the L-shaped clamping plate (121) is greater than the length of the driving shaft (113).

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