阅读说明：本技术 一种滑动式电磁屏蔽门 (Sliding type electromagnetic shielding door ) 是由 吴传奇 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种滑动式电磁屏蔽门,涉及电磁屏蔽门技术领域,包括电磁屏蔽门、屏蔽门驱动机构、电磁吸附机构和滑轨,所述电磁屏蔽门的顶部与屏蔽门驱动机构的底部固定连接,所述电磁屏蔽门的底部与滑轨的内壁滑动连接,所述电磁屏蔽门的右侧与电磁吸附机构的左侧固定连接,所述滑轨的内侧壁固定安装有贴合装置。本发明通过采用随动板、贴合装置和滑轨的结合,方便电磁屏蔽门在滑轨的内部进行移动的同时,能够避免电磁屏蔽门底部产生的晃动,并且设置的贴合装置能够避免电磁屏蔽门在移动的过程中摆动幅度过大,并且贴合装置的内部设置的滑轮能够使得电磁屏蔽门的移动较为规律,极大降低了电磁屏蔽门在移动时产生的晃动。(The invention discloses a sliding type electromagnetic shielding door, which relates to the technical field of electromagnetic shielding doors and comprises an electromagnetic shielding door, a shielding door driving mechanism, an electromagnetic adsorption mechanism and a slide rail, wherein the top of the electromagnetic shielding door is fixedly connected with the bottom of the shielding door driving mechanism, the bottom of the electromagnetic shielding door is slidably connected with the inner wall of the slide rail, the right side of the electromagnetic shielding door is fixedly connected with the left side of the electromagnetic adsorption mechanism, and a laminating device is fixedly arranged on the inner side wall of the slide rail. According to the electromagnetic shielding door, the combination of the follow-up plate, the laminating device and the slide rail is adopted, so that the electromagnetic shielding door can be conveniently moved in the slide rail, the shaking generated at the bottom of the electromagnetic shielding door can be avoided, the arranged laminating device can avoid the overlarge swing amplitude of the electromagnetic shielding door in the moving process, the pulley arranged in the laminating device can enable the electromagnetic shielding door to move regularly, and the shaking generated when the electromagnetic shielding door moves is greatly reduced.)

1. The utility model provides a slidingtype electromagnetic shielding door, includes electromagnetic shielding door (1), shield door actuating mechanism (2), electromagnetism adsorption apparatus constructs (3) and slide rail (4), the top of electromagnetic shielding door (1) and the bottom fixed connection of shield door actuating mechanism (2), the bottom of electromagnetic shielding door (1) and the inner wall sliding connection of slide rail (4), the right side of electromagnetic shielding door (1) and the left side fixed connection of electromagnetism adsorption apparatus structure (3), its characterized in that: the inner side wall of the sliding rail (4) is fixedly provided with a laminating device (6), the bottom of the sliding rail (4) is connected with a follow-up plate (5) in a sliding mode, the inner side wall of the follow-up plate (5) is fixedly connected with the outer wall of the electromagnetic shielding door (1), and the outer wall of the laminating device (6) is connected with the outer wall of the follow-up plate (5) in a sliding mode.

2. The sliding electromagnetic shield door of claim 1, wherein: laminating device (6) are including toughness area (7), take piece (8), arc stripper plate (9), pulley (10) and atmospheric pressure bag (11), the top of toughness area (7) and the inner wall fixed connection of laminating device (6), the bottom of toughness area (7) and the top fixed connection who takes piece (8), the left side of taking piece (8) and the right side fixed connection of arc stripper plate (9), the axle center department of pulley (10) and the outer wall center department fixed connection who takes piece (8), the left side of atmospheric pressure bag (11) and the inner wall fixed connection of laminating device (6).

3. The sliding electromagnetic shield door of claim 2, wherein: the left side of arc stripper plate (9) and the right side overlap joint of atmospheric pressure bag (11), toughness area (7) are located the both ends setting of taking piece (8), pulley (10) are connected with laminating device (6) rotation through toughness area (7) that set up.

4. The sliding electromagnetic shield door of claim 1, wherein: the follow-up plate (5) comprises a preset rail (12), a sound insulation plate (13) and a pre-tightening device (14), the top of the preset rail (12) is fixedly connected with the bottom of the follow-up plate (5), the left side of the pre-tightening device (14) is fixedly connected with the inner side wall of the follow-up plate (5), and the right side of the sound insulation plate (13) is fixedly connected with the outer wall of the follow-up plate (5).

5. The sliding electromagnetic shield door of claim 4, wherein: pretension device (14) are including elastic connection area (15), lead to chamber expansion ball (16), loading board (17), slider (18), embedding pipe (19), cavity sleeve (20), air current connecting band (21), receive pressure board (22) and magnetic force resilient means (23), the top of elastic connection area (15) and the bottom fixed connection of slider (18), the right side that leads to chamber expansion ball (16) and the left side fixed connection of elastic connection area (15), the left side that leads to chamber expansion ball (16) and the right side fixed connection of loading board (17), the upper right end of loading board (17) and the left lower extreme fixed connection of slider (18), the outer wall of slider (18) and the inner wall sliding connection of pretension device (14).

6. The sliding electromagnetic shield door of claim 5, wherein: the right upper end of embedding pipe (19) and the left lower extreme fixed connection of slider (18), the left side bottom of cavity sleeve (20) and the inner wall left side fixed connection of preloading device (14), the left side of air current connecting band (21) and the inner wall through connection of cavity sleeve (20), the outer wall right side of air current connecting band (21) runs through the inner wall in loading board (17) and the inner wall sealing connection who leads to chamber expansion ball (16), the right side of compressed sheet (22) and the left side fixed connection of loading board (17), the left side of magnetic force elastic device (23) and the inner wall fixed connection of preloading device (14), the outer wall of compressed sheet (22) is connected with the inner wall embedding of magnetic force elastic device (23).

7. The sliding electromagnetic shield door of claim 5, wherein: the magnetic elastic device (23) comprises a built-in elastic sleeve (24), a sliding rod (25), a first magnetic block (26), a stop block (27), a bearing frame (28) and a second magnetic block (29), wherein the outer wall of the sliding rod (25) is in sliding connection with the inner wall of the built-in elastic sleeve (24), the right side of the first magnetic block (26) is fixedly connected with the left side of the built-in elastic sleeve (24), the top of the sliding rod (25) is in sliding connection with the inner wall of the magnetic elastic device (23), and the bottom of the stop block (27) is fixedly connected with the bottom of the inner wall of the magnetic elastic device (23).

8. The sliding electromagnetic shield door of claim 7, wherein: the outer wall of the bearing frame (28) is welded with the inner wall of the magnetic elastic device (23), the outer wall of the second magnetic block (29) is fixedly connected with the outer wall of the bearing frame (28), and the right side of the built-in elastic sleeve (24) is fixedly connected with the left side of the compression plate (22).

9. The sliding electromagnetic shield door of claim 4, wherein: the inner wall of the preset rail (12) is matched with the outer wall of the pulley (10), and the right side of the pre-tightening device (14) is lapped with the outer wall of the electromagnetic shielding door (1).

Technical Field

The invention relates to the technical field of electromagnetic shielding doors, in particular to a sliding type electromagnetic shielding door.

Background

The electromagnetic shielding technology is an important component of the electromagnetic compatibility technology, is the most effective means for inhibiting radiation interference, when a machine cabinet, a shielding room, a communication shelter and a microwave dark room are built, a shielding door is the main path of electromagnetic leakage, is the main factor for determining the performance of the shielding room, is usually built by metal materials, certain measures are taken at joints of metal plates, doors and the like to ensure continuous electric connection, the electromagnetic shielding room utilizes a metal shielding body to shield the radiation of electromagnetic energy of the external environment to internal equipment, and simultaneously shields the leakage of the electromagnetic energy generated by the internal equipment to the external environment by the same shielding amount, the electromagnetic shielding door has higher technical content, special materials and extremely complex process.

The sliding type electromagnetic shielding door is generally adopted when being closed, the electromagnetic shielding door is different in driving position and is long in moving distance, the electromagnetic shielding door is easy to shake away from the driving position, so that the electromagnetic shielding door is collided with other structures, noise is easy to generate, the stability of the structure of the electromagnetic shielding door is easy to damage along with the shake generated when the electromagnetic shielding door moves, the original purpose of improving the stability of the electromagnetic shielding door when the electromagnetic shielding door moves cannot be achieved, the applicability of the sliding type electromagnetic shielding door is poor, and therefore structural innovation is needed to be carried out to solve specific problems.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a sliding electromagnetic shielding door, wherein one purpose is to improve the stability of the electromagnetic shielding door during moving and solve the problem that the electromagnetic shielding door generates different degrees of shaking and generates noise during moving; the other purpose is to solve the problem that the shaking amplitude of the electromagnetic shielding door is too large when the electromagnetic shielding door moves, so that the effect of improving the stability of the electromagnetic shielding door when the electromagnetic shielding door moves is achieved.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a slidingtype electromagnetic shielding door, includes electromagnetic shielding door, shield door actuating mechanism, electromagnetism adsorption apparatus structure and slide rail, the top of electromagnetic shielding door and shield door actuating mechanism's bottom fixed connection, the bottom of electromagnetic shielding door and the inner wall sliding connection of slide rail, the right side of electromagnetic shielding door and the left side fixed connection of electromagnetism adsorption apparatus structure, the inside wall fixed mounting of slide rail has the laminating device, the bottom sliding connection of slide rail has the follower plate, the inside wall of follower plate and the outer wall fixed connection of electromagnetic shielding door, the outer wall sliding connection of the outer wall of laminating device and follower plate.

The technical scheme of the invention is further improved as follows: laminating device includes the toughness area, takes piece, arc stripper plate, pulley and atmospheric pressure bag, the top in toughness area and laminating device's inner wall fixed connection, the bottom in toughness area and the top fixed connection who takes the piece, the left side of taking the piece and the right side fixed connection of arc stripper plate, the axle center department of pulley and the outer wall center department fixed connection who takes the piece, the left side of atmospheric pressure bag and laminating device's inner wall fixed connection.

The technical scheme of the invention is further improved as follows: the left side of arc stripper plate and the right side overlap joint of atmospheric pressure bag, the toughness area is located the both ends setting of taking the piece, the pulley is connected with laminating device rotation through the toughness area that sets up.

The technical scheme of the invention is further improved as follows: the follow-up plate comprises a preset rail, a sound insulation plate and a pre-tightening device, the top of the preset rail is fixedly connected with the bottom of the follow-up plate, the left side of the pre-tightening device is fixedly connected with the inner side wall of the follow-up plate, and the right side of the sound insulation plate is fixedly connected with the outer wall of the follow-up plate.

The technical scheme of the invention is further improved as follows: the pre-tightening device comprises an elastic connecting belt, a through cavity expansion ball, a bearing plate, a slider, an embedded pipe, a cavity sleeve, an airflow connecting belt, a pressed plate and a magnetic elastic device, the top of the elastic connecting belt is fixedly connected with the bottom of the slider, the right side of the through cavity expansion ball is fixedly connected with the left side of the elastic connecting belt, the left side of the through cavity expansion ball is fixedly connected with the right side of the bearing plate, the upper right end of the bearing plate is fixedly connected with the lower left end of the slider, and the outer wall of the slider is connected with the inner wall of the pre-tightening device in a sliding mode.

The technical scheme of the invention is further improved as follows: the right upper end of embedding pipe and the left lower extreme fixed connection of slider, the telescopic left side bottom of cavity and preloading device's inner wall left side fixed connection, the left side of air current connecting band and the telescopic inner wall through connection of cavity, the outer wall right side of air current connecting band runs through in the inner wall of loading board and the inner wall sealing connection who leads to the chamber expansion ball, the right side that receives the board and the left side fixed connection of loading board, the left side of magnetic elastic device and preloading device's inner wall fixed connection, the outer wall that receives the board is connected with magnetic elastic device's inner wall embedding.

The technical scheme of the invention is further improved as follows: the magnetic elastic device comprises a built-in elastic sleeve, a sliding rod, a first magnetic block, a stop block, a bearing frame and a second magnetic block, wherein the outer wall of the sliding rod is in sliding connection with the inner wall of the built-in elastic sleeve, the right side of the first magnetic block is fixedly connected with the left side of the built-in elastic sleeve, the top of the sliding rod is in sliding connection with the inner wall of the magnetic elastic device, and the bottom of the stop block is fixedly connected with the bottom of the inner wall of the magnetic elastic device.

The technical scheme of the invention is further improved as follows: the outer wall of the bearing frame is welded with the inner wall of the magnetic elastic device, the outer wall of the second magnetic block is fixedly connected with the outer wall of the bearing frame, and the right side of the built-in elastic sleeve is fixedly connected with the left side of the compression plate.

The technical scheme of the invention is further improved as follows: the inner wall of the predetermined rail is matched with the outer wall of the pulley, and the right side of the pre-tightening device is lapped with the outer wall of the electromagnetic shielding door.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a sliding type electromagnetic shielding door, which is ingenious in design, the electromagnetic shielding door can be conveniently moved in the slide rail by adopting the combination of a follow-up plate, a laminating device and the slide rail, the shaking generated at the bottom of the electromagnetic shielding door can be avoided, the arranged laminating device can avoid overlarge swing amplitude of the electromagnetic shielding door in the moving process, the movement of the electromagnetic shielding door can be more regular by a pulley arranged in the laminating device, and the pulley has certain moving capacity by the matching of a flexible belt, an air pressure bag and an arc-shaped extrusion plate, and the pulley can be in closer contact with the electromagnetic shielding door due to certain elastic force of the air pressure expansion force of the interior of the air pressure bag.

2. The invention provides a sliding type electromagnetic shielding door, which is characterized in that a pre-tightening device and a sound insulation plate are arranged in a follow-up plate in a combined mode, noise generated when the electromagnetic shielding door and the follow-up plate collide can be reduced through the sound insulation plate, the noise generated when the electromagnetic shielding door is closed is prevented from being diffused outwards, and an elastic connecting band, a through cavity expansion ball and a bearing plate are arranged in the pre-tightening device, so that the pre-tightening device and the electromagnetic shielding door have certain flexibility when in contact, and when the shaking amplitude of the electromagnetic shielding door is too large, the bearing plate can move towards the interior of the pre-tightening device, and the shaking of the electromagnetic shielding door is reduced.

3. The invention provides a sliding type electromagnetic shielding door, which is characterized in that an embedded pipe, a cavity sleeve, a pressure receiving plate and a magnetic elastic device are combined, when a bearing plate moves, the embedded pipe enters the cavity sleeve, and due to the fact that certain air pressure exists in the cavity sleeve, the embedded pipe continuously extends deeply to enable the air pressure in the cavity sleeve to be increased, air flow enters the inside of a through cavity expansion ball through an air flow connecting belt, the shape of the through cavity expansion ball changes, at the moment, the elastic connecting belt expands outwards under the influence of deformation of the through cavity expansion ball, the contact area of the elastic connecting belt with the electromagnetic shielding door is increased, and the shaking amplitude of the electromagnetic shielding door is further reduced.

4. The invention provides a sliding type electromagnetic shielding door, which is characterized in that a first magnetic block, a second magnetic block, a sliding rod and a built-in elastic sleeve are arranged in a magnetic elastic device in a matching manner, when a pressure-receiving plate is influenced by the movement of a bearing plate, the sliding rod can gradually move into the built-in elastic sleeve, the first magnetic block and the second magnetic block are same-polarity magnetic blocks, and the larger the moving distance of the pressure-receiving plate is, the larger the repulsive force between the first magnetic block and the second magnetic block is, so that the moving distance of the bearing plate is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a slide rail structure according to the present invention;

FIG. 3 is a schematic structural view of a bonding apparatus according to the present invention;

FIG. 4 is a schematic diagram of a follower plate structure according to the present invention;

FIG. 5 is a schematic structural view of a pretensioning device according to the present invention;

FIG. 6 is a schematic structural diagram of the magnetoelastic device of the present invention.

In the figure: 1. an electromagnetic shield door; 2. a shield door drive mechanism; 3. an electromagnetic adsorption mechanism; 4. a slide rail; 5. a follower plate; 6. a bonding device; 7. a malleable band; 8. building blocks; 9. an arc-shaped extrusion plate; 10. a pulley; 11. an air pressure bag; 12. presetting a rail; 13. a sound insulating board; 14. a pre-tightening device; 15. an elastic connecting band; 16. a cavity-through expansion ball; 17. a carrier plate; 18. a slider; 19. an insert tube; 20. a cavity sleeve; 21. an air flow connecting belt; 22. a pressure receiving plate; 23. a magnetic elastic device; 24. an elastic sleeve is arranged inside; 25. a slide bar; 26. a first magnetic block; 27. a stopper; 28. a load-bearing frame; 29. a second magnetic block.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-6, the invention provides a sliding electromagnetic shielded door, which comprises an electromagnetic shielded door 1, a shielded door driving mechanism 2, an electromagnetic adsorption mechanism 3 and a sliding rail 4, wherein the top of the electromagnetic shielded door 1 is fixedly connected with the bottom of the shielded door driving mechanism 2, the bottom of the electromagnetic shielded door 1 is slidably connected with the inner wall of the sliding rail 4, the right side of the electromagnetic shielded door 1 is fixedly connected with the left side of the electromagnetic adsorption mechanism 3, the inner side wall of the sliding rail 4 is fixedly provided with a fitting device 6, the bottom of the sliding rail 4 is slidably connected with a follower plate 5, the inner side wall of the follower plate 5 is fixedly connected with the outer wall of the electromagnetic shielded door 1, the outer wall of the fitting device 6 is slidably connected with the outer wall of the follower plate 5, the fitting device 6 comprises a flexible belt 7, a block 8, an arc-shaped extrusion plate 9, a pulley 10 and an air pressure bag 11, the top of the flexible belt 7 is fixedly connected with the inner wall of the fitting device 6, the bottom of toughness area 7 and the top fixed connection who takes piece 8, the left side of taking piece 8 and the right side fixed connection of arc stripper plate 9, the axle center department of pulley 10 and the outer wall center department fixed connection who takes piece 8, the left side of atmospheric pressure bag 11 and the inner wall fixed connection of laminating device 6, the left side of arc stripper plate 9 and the right side overlap joint of atmospheric pressure bag 11, toughness area 7 is located the both ends setting of taking piece 8, pulley 10 rotates with laminating device 6 through the toughness area 7 that sets up and is connected.

In this embodiment, drive whole electromagnetic shield door 1 through shield door actuating mechanism 2 and remove in the inside of slide rail 4, and the electromagnetic adsorption mechanism 3 that sets up is in order to carry out the electrosorption with two electromagnetic shield doors 1, convenient closure, and laminating device 6 that sets up can avoid electromagnetic shield door 1 too big at the in-process swing range that removes, and the pulley 10 that laminating device 6's inside set up can make the removal of electromagnetic shield door 1 comparatively regular, and set up toughness band 7, the cooperation of atmospheric pressure bag 11 and arc stripper plate 9, make pulley 10 possess certain mobility, and because the atmospheric pressure expanding force that atmospheric pressure bag 11 possessed makes it possess certain elastic force, make pulley 10 can with the inseparabler of electromagnetic shield door 1 contact.

Example 2

As shown in fig. 2, 4 and 5, the present invention provides a technical solution based on embodiment 1: the follow-up plate 5 comprises a preset rail 12, a sound insulation plate 13 and a pre-tightening device 14, the top of the preset rail 12 is fixedly connected with the bottom of the follow-up plate 5, the inner wall of the preset rail 12 is matched with the outer wall of the pulley 10, the right side of the pre-tightening device 14 is in lap joint with the outer wall of the electromagnetic shielding door 1, the left side of the pre-tightening device 14 is fixedly connected with the inner side wall of the follow-up plate 5, the right side of the sound insulation plate 13 is fixedly connected with the outer wall of the follow-up plate 5, the pre-tightening device 14 and the sound insulation plate 13 which are arranged inside the follow-up plate 5 are combined, noise generated when collision between the electromagnetic shielding door 1 and the follow-up plate 5 can be reduced through the sound insulation plate 13, and outward diffusion of noise generated when the electromagnetic shielding door 1 is closed is avoided.

Wherein, the pre-tightening device 14 comprises an elastic connecting band 15, a cavity expansion ball 16, a bearing plate 17, a slider 18, an embedded tube 19, a cavity sleeve 20, an airflow connecting band 21, a pressed plate 22 and a magnetic elastic device 23, the top of the elastic connecting band 15 is fixedly connected with the bottom of the slider 18, the right side of the cavity expansion ball 16 is fixedly connected with the left side of the elastic connecting band 15, the left side of the cavity expansion ball 16 is fixedly connected with the right side of the bearing plate 17, the elastic connecting band 15, the cavity expansion ball 16 and the bearing plate 17 are arranged in the pre-tightening device 14, so that the pre-tightening device 14 has certain flexibility when contacting the electromagnetic shielding door 1, when the shaking amplitude of the electromagnetic shielding door 1 is too large, the bearing plate 17 can move to the inside of the pre-tightening device 14, so as to reduce the shaking of the electromagnetic shielding door 1, the upper right end of the bearing plate 17 is fixedly connected with the lower left end of the slider 18, the outer wall of the sliding block 18 is connected with the inner wall of the pre-tightening device 14 in a sliding mode, the right upper end of the embedded pipe 19 is fixedly connected with the left lower end of the sliding block 18, the left bottom of the left side of the cavity sleeve 20 is fixedly connected with the left side of the inner wall of the pre-tightening device 14, the left side of the airflow connecting belt 21 is connected with the inner wall of the cavity sleeve 20 in a penetrating mode, the right side of the outer wall of the airflow connecting belt 21 penetrates through the inner wall of the bearing plate 17 and is connected with the inner wall of the through cavity expansion ball 16 in a sealing mode, when the bearing plate 17 moves, the embedded pipe 19 enters the inside of the cavity sleeve 20, due to the fact that certain air pressure exists inside the cavity sleeve 20, the embedded pipe 19 continuously penetrates deeply to enable the air pressure inside the cavity sleeve 20 to be increased, air flow enters the inside of the through cavity expansion ball 16 through the airflow connecting belt 21, the shape of the through cavity expansion ball 16 changes, and the elastic connecting belt 15 expands outwards under the influence of deformation of the through cavity expansion ball 16, the contact area of the electromagnetic shielding door 1 is increased, the shaking amplitude of the electromagnetic shielding door 1 is further reduced, the right side of the pressed plate 22 is fixedly connected with the left side of the bearing plate 17, the left side of the magnetic elastic device 23 is fixedly connected with the inner wall of the pre-tightening device 14, and the outer wall of the pressed plate 22 is connected with the inner wall of the magnetic elastic device 23 in an embedded mode.

Example 3

As shown in fig. 5 to 6, on the basis of the embodiment 1 and the embodiment 2, the present invention provides a technical solution: preferably, the magnetic elastic device 23 includes a built-in elastic sleeve 24, a sliding rod 25, a first magnetic block 26, a stopper 27, a bearing frame 28 and a second magnetic block 29, an outer wall of the sliding rod 25 is slidably connected with an inner wall of the built-in elastic sleeve 24, a right side of the first magnetic block 26 is fixedly connected with a left side of the built-in elastic sleeve 24, a top of the sliding rod 25 is slidably connected with an inner wall of the magnetic elastic device 23, a bottom of the stopper 27 is fixedly connected with a bottom of the inner wall of the magnetic elastic device 23, the stopper 27 is arranged to limit a moving distance of the built-in elastic sleeve 24 and avoid collision of the excessive moving distance with the second magnetic block 29, by cooperation of the first magnetic block 26, the second magnetic block 29, the sliding rod 25 and the built-in elastic sleeve 24, when the pressure-receiving plate 22 is influenced by movement of the bearing plate 17, the sliding rod 25 gradually moves into the interior of the built-in elastic sleeve 24, an elastic assembly is arranged in the interior of the built-in elastic sleeve 24, when the sliding rod 25 slides in the internal elastic sleeve 24, a certain elastic force is provided, so that the sliding rod 25 is in closer contact with the inside of the magnetic elastic device 23, and the like magnetic blocks are arranged between the first magnetic block 26 and the second magnetic block 29, and a certain repulsive force is provided, when the distance moved by the pressure receiving plate 22 is larger, the repulsive force between the first magnetic block 26 and the second magnetic block 29 is larger, so as to reduce the moving distance of the loading plate 17, the outer wall of the loading frame 28 is welded with the inner wall of the magnetic elastic device 23, the outer wall of the second magnetic block 29 is fixedly connected with the outer wall of the loading frame 28, and the right side of the internal elastic sleeve 24 is fixedly connected with the left side of the pressure receiving plate 22.

The working principle of the sliding electromagnetic shielding door is described in detail as follows:

as shown in fig. 1-6, according to the invention, firstly, an electromagnetic shielding door 1 is connected with a follower plate 5, meanwhile, the follower plate 5 is placed inside a slide rail 4, the electromagnetic shielding door 1 is driven to move inside the slide rail 4 by starting a shielding door driving mechanism 2, when the electromagnetic shielding door 1 moves, the follower plate 5 is driven to move, if the bottom of the electromagnetic shielding door 1 shakes to a larger extent, the electromagnetic shielding door 1 can contact with an attaching device 6, and because the electromagnetic shielding door 1 can impact a pulley 10 when shaking, an arc-shaped extrusion plate 9 is contacted with an air pressure bag 11, the pulley 10 is contacted with the follower plate 5 more tightly while the electromagnetic shielding door 1 extrudes the pulley 10, and meanwhile, a pre-tightening device 14 arranged on the inner side of the follower plate 5 can reduce the shaking of the electromagnetic shielding door 1 inside the follower plate 5.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.