Electromagnetic shielding door fit clearance optimization structure

Abstract

The invention relates to the technical field of electromagnetic shielding doors, in particular to an electromagnetic shielding door fit clearance optimization structure which is used for solving the problem that the edge of an existing shielding door is prone to electromagnetic leakage. The structure comprises a door body mechanism, the door body mechanism comprises a door frame and a shielding door body connected to the door frame, a first blocking mechanism and a second blocking mechanism are arranged on the shielding door body, the first blocking mechanism comprises sealing strips connected to the four edges of the shielding door body in a sliding mode, and the second blocking mechanism comprises sealing blocks connected to the intersection portions of the four sealing strips in a sliding mode. When the four sealing strips slide in the direction away from the shielding door body, gaps between the shielding door body and the door frame can be blocked, and when the four sealing blocks slide in the direction away from the shielding door body, gaps among the four sealing strips can be blocked; according to the structure, the edge of the shielding door body can be sealed, and the electromagnetic shielding effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic shielding door technology, and in particular to an optimized structure for the fitting gap of an electromagnetic shielding door. Background Technology

[0002] With the rapid development of modern electronic information technology, high-precision electronic equipment is widely used in key fields such as scientific research, medicine, and communications. These devices place extremely high demands on the stability and purity of the electromagnetic environment. As an important barrier to isolate external electromagnetic interference and protect the normal operation of internal electronic equipment, the performance of electromagnetic shielding doors directly affects the effectiveness of the entire electromagnetic shielding system.

[0003] In practical applications, traditional electromagnetic shielding doors, despite employing sealing strips and other structures to seal the gaps between the door body and frame, inevitably retain minute gaps due to factors such as door opening and closing movements, wear and tear on components from long-term use, and assembly processes. These seemingly minor gaps become the main channels for electromagnetic wave leakage, severely weakening the electromagnetic shielding effect and interfering with the stable operation of internal high-precision electronic equipment, potentially leading to data transmission errors and equipment malfunctions. Furthermore, the sealing treatment at the corners and other intersections of the sealing strips in traditional shielding doors is relatively weak, failing to achieve comprehensive, blind-angle electromagnetic shielding and making it difficult to meet current demands for high reliability and high precision in electromagnetic shielding. Summary of the Invention

[0004] This invention provides an optimized structure for the fit gap of an electromagnetic shielding door to solve the problem of electromagnetic leakage at the edges of existing shielding doors.

[0005] To alleviate the aforementioned technical problems, the present invention provides a structure for optimizing the gap of an electromagnetic shielding door, comprising a door body mechanism, the door body mechanism including a door frame and a shielding door body connected to the door frame, the shielding door body being provided with a first sealing mechanism and a second sealing mechanism, the first sealing mechanism including sealing strips slidably connected to the four sides of the shielding door body, the second sealing mechanism including sealing blocks slidably connected to the intersection of the four sealing strips, the four sealing strips being able to seal the gap between the shielding door body and the door frame when sliding away from the shielding door body, and the four sealing blocks being able to seal the gap between the four sealing strips when sliding away from the shielding door body.

[0006] Furthermore, the first sealing mechanism also includes a slide rod fixedly connected to the seal strip. The slide rod slides linearly along the shielding door body. A first turntable is rotatably connected to the middle of the shielding door body. A first inclined groove is provided on the first turntable. A first guide rod is fixedly connected to the end of the slide rod. The first guide rod is slidably connected to the first inclined groove, so that the slide rod can be driven to slide when the first turntable rotates.

[0007] Furthermore, a rotating shaft is connected through the middle of the first turntable, and a first locking block is fixedly connected to the side wall of the rotating shaft. An arc-shaped groove that cooperates with the first locking block is opened in the middle of the first turntable. When the rotating shaft rotates, the first locking block can slide in the arc-shaped groove, and after the first locking block abuts against the groove wall of the arc-shaped groove, the rotating shaft can drive the first turntable to rotate.

[0008] Furthermore, the second sealing mechanism also includes a rectangular cylinder, inside which a rectangular rod is slidably connected, and the sealing block is fixedly connected to the end of the rectangular rod. A piston cylinder is fixedly connected inside the shielding door, and a pipe connects the piston cylinder and the rectangular cylinder. When the rotating shaft rotates, it can drive the piston cylinder to transmit pressure into the rectangular cylinder so that the sealing block moves closer to the seal.

[0009] Furthermore, a piston plate is slidably connected inside the piston cylinder, a cylinder is fixedly connected to the piston plate, a piston rod is slidably connected inside the cylinder via a first spring, and a second guide rod is fixedly connected to the end of the piston rod;

[0010] The shielding door is rotatably connected to a second turntable, which has a second sliding groove, and the second guide rod is slidably connected to the second sliding groove.

[0011] Furthermore, the rotating shaft is inserted into the middle of the second turntable, and a second locking block is fixedly connected to the side wall of the rotating shaft. An arc-shaped rod is fixedly connected to the second locking block, and the arc-shaped rod is slidably connected to the second turntable. A second spring is sleeved on the arc-shaped rod, and the two ends of the second spring abut against the second locking block and the second turntable, respectively. When the rotating shaft rotates, the first locking block slides in the arc-shaped groove, and the second spring is driven by the second turntable. When the rotating shaft continues to rotate, the first locking block abuts against the inner wall of the arc-shaped groove, the second turntable stops rotating, and the second locking block compresses the second spring.

[0012] Furthermore, it also includes a reinforcement mechanism, which includes four sets of pressure rods that slide at the four corners of the shielding door. The shielding door has holes that cooperate with the pressure rods. A pressure plate is fixedly connected to the end of the pressure rod away from the shielding door. When the pressure rod slides toward the shielding door, the pressure plate can apply pressure to the seal and the sealing block.

[0013] Furthermore, a vacuum pump is connected to the shielding door, and a negative pressure pipe is connected between the vacuum pump and the hole in the shielding door.

[0014] Furthermore, four rotating plates are hinged to the outside of the door frame near the four seals. Each of the four rotating plates has an elastic block connected between its side near the shielding door and the door frame, and an electromagnetic sensor connected to its end away from the shielding door. When the seals slide away from the shielding door, they can squeeze the end of the rotating plate near the shielding door, thereby causing the rotating plates to swing so that the electromagnetic sensors face the seals.

[0015] Furthermore, there are four negative pressure pipes, which are connected to the holes of the four sets of shielding doors respectively. Each of the four negative pressure pipes is equipped with a solenoid valve, and each of the four solenoid valves corresponds to one of the four electromagnetic sensors. When the electromagnetic sensor detects electromagnetic leakage, the corresponding solenoid valve opens and the vacuum pump starts.

[0016] The beneficial effects of the present invention are analyzed as follows: An optimized structure for the fit gap of an electromagnetic shielding door includes a door body mechanism, which includes a door frame and a shielding door body connected to the door frame. The shielding door body is provided with a first sealing mechanism and a second sealing mechanism. The first sealing mechanism includes sealing strips slidably connected to the four sides of the shielding door body. The second sealing mechanism includes sealing blocks slidably connected to the intersection of the four sealing strips. When the four sealing strips slide away from the shielding door body, they can seal the gap between the shielding door body and the door frame. When the four sealing blocks slide away from the shielding door body, they can seal the gap between the four sealing strips.

[0017] There are tiny gaps between the edge of the shielded door and the door frame. Through the coordinated action of the first and second sealing mechanisms, these gaps are effectively sealed to ensure electromagnetic shielding. After the shielded door is closed, the first sealing mechanism operates, causing the four sealing strips to slide away from the shielded door without detaching from it, thus completely sealing the gaps between the shielded door and the door frame. Subsequently, the second sealing mechanism is activated, and the four sealing blocks slide to the intersection of the sealing strips, further sealing the gaps. This ensures that the four corners of the shielded door are also tightly sealed, preventing electromagnetic waves from easily leaking through any tiny gaps. This comprehensively improves electromagnetic shielding performance, protects the internal environment from electromagnetic interference, and is suitable for high-precision electronic equipment environments, ensuring stable equipment operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the shielding door of the present invention in the closed state;

[0020] Figure 2 This is a schematic diagram of the shielding door of the present invention in the open state;

[0021] Figure 3 This is a schematic diagram of the seal of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure at the first guide rod of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the first card block in this invention;

[0024] Figure 6 This is a schematic diagram of the piston plate structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the second turntable in this invention;

[0026] Figure 8 This is a schematic diagram of the structure of the pressure bar in this invention.

[0027] Icons: 100, Door body mechanism; 110, Door frame; 120, Shielding door body; 130, Door hinge; 140, Hinge seat; 200, First sealing mechanism; 201, Rotating shaft; 202, First locking block; 203, Arc groove; 210, First turntable; 220, First inclined slide groove; 230, Slide rod; 231, Seal strip; 232, First guide rod; 300, Second sealing mechanism; 310, Rectangular cylinder; 320, Sealing block; 321, Rectangular rod; 330, Movable... 331. Plug; 340. Cylinder; 341. Piston plate; 342. Piston rod; 343. First spring; 350. Second turntable; 351. Second slide groove; 352. Second guide rod; 360. Second locking block; 361. Arc rod; 362. Second spring; 400. Reinforcing mechanism; 410. Turning plate; 420. Electromagnetic sensor; 430. Pressure rod; 440. Pressure plate; 450. Negative pressure pipe; 451. Solenoid valve; 460. Vacuum pump. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Reference Figures 1-8 An optimized structure for the fit gap of an electromagnetic shielding door includes a door body mechanism 100, which includes a door frame 110 and a shielding door body 120 connected to the door frame 110. The shielding door body 120 is provided with a first sealing mechanism 200 and a second sealing mechanism 300. The first sealing mechanism 200 includes sealing strips 231 slidably connected to the four sides of the shielding door body 120. The second sealing mechanism 300 includes sealing blocks 320 slidably connected to the intersection of the four sealing strips 231. When the four sealing strips 231 slide away from the shielding door body 120, they can seal the gap between the shielding door body 120 and the door frame 110. When the four sealing blocks 320 slide away from the shielding door body 120, they can seal the gap between the four sealing strips 231.

[0032] The working mechanism of the electromagnetic shielding door gap optimization structure provided in this embodiment is as follows:

[0033] A door hinge 130 is fixedly connected to the edge of the shielding door 120, and a bearing seat 140 is fixedly connected to the door frame 110. The door hinge 130 is rotatably connected to the bearing seat 140. The door lock structure between the shielding door 120 and the door frame 110 can adopt the existing structure.

[0034] There are tiny gaps between the edge of the shielding door 120 and the door frame 110. Through the coordinated action of the first sealing mechanism 200 and the second sealing mechanism 300, these gaps are effectively sealed to ensure electromagnetic shielding. After the shielding door 120 is closed, the first sealing mechanism 200 operates, causing the four sealing strips 231 to slide away from the shielding door 120 without detaching from it, thus completely sealing the gaps between the shielding door 120 and the door frame 110. Subsequently, the second sealing mechanism 300 is activated, and the four sealing blocks 320 slide to the intersection of the sealing strips 231, further sealing the gaps. This ensures that the four corners of the shielding door 120 are also tightly sealed, preventing electromagnetic waves from easily leaking through any tiny gaps. This comprehensively improves the electromagnetic shielding performance, protects the internal environment from electromagnetic interference, and is suitable for high-precision electronic equipment environments, ensuring stable equipment operation.

[0035] Specifically, regarding the structure of the first sealing mechanism 200: the first sealing mechanism 200 further includes a slide rod 230 fixedly connected to the seal 231. The slide rod 230 slides linearly on the shielding door 120. A first turntable 210 is rotatably connected to the middle of the shielding door 120. A first inclined slide groove 220 is provided on the first turntable 210. A first guide rod 232 is fixedly connected to the end of the slide rod 230. The first guide rod 232 is slidably connected to the first inclined slide groove 220, so that the slide rod 230 can be driven to slide when the first turntable 210 rotates.

[0036] When the first turntable 210 rotates, the first guide rod 232 moves along the first inclined slide groove 220, driving the slide rod 230 and the sealing strip 231 to slide synchronously, precisely controlling the position of the sealing strip 231 to ensure a tight seal. The slide rod 230 slides linearly on the shielding door 120 through the slider and slide groove, ensuring the sliding trajectory of the sealing strip 231, so that the sealing strip 231 can stably seal the gap between the shielding door 120 and the door frame 110. At the same time, the sealing block 320 of the second sealing mechanism 300 slides quickly to the intersection after the sealing strip 231 is in place, forming a double seal, completely blocking the electromagnetic wave leakage path and improving the overall shielding effectiveness.

[0037] In the optional embodiments of this example, a preferred embodiment is that a rotating shaft 201 is connected through the middle of the first turntable 210, a first locking block 202 is fixedly connected to the side wall of the rotating shaft 201, and an arc-shaped groove 203 that cooperates with the first locking block 202 is opened in the middle of the first turntable 210. When the rotating shaft 201 rotates, the first locking block 202 can slide in the arc-shaped groove 203, and after the first locking block 202 abuts against the groove wall of the arc-shaped groove 203, the rotating shaft 201 can drive the first turntable 210 to rotate.

[0038] A handle is fixedly connected to the end of the rotating shaft 201. Rotating the shaft 201 is controlled by turning the handle. After the shielding door 120 is closed, lifting the handle engages the first locking block 202. Figure 5 In this state, it slides clockwise in the arc groove 203. When the first locking block 202 slides to the far right, the rotating shaft 201 continues to rotate. At this time, the rotating shaft 201 drives the first turntable 210 to rotate clockwise through the first locking block 202, thereby driving the subsequent first guide rod 232 to move precisely along the first inclined slide groove 220, causing the slide rod 230 and the seal 231 to fit tightly, ensuring that the gap is completely sealed. At the same time, the sealing block 320 of the second sealing mechanism 300 quickly enters the position, forming a double guarantee to block electromagnetic wave leakage.

[0039] By setting the first locking block 202 and the arc groove 203 to cooperate, the sealing block 320 can be driven first, thereby preventing the sealing block 320 from being clamped between adjacent seals 231 and causing the first turntable 210 to jam.

[0040] Regarding the structure of the second sealing mechanism 300, specifically: the second sealing mechanism 300 also includes a rectangular cylinder 310, a rectangular rod 321 is slidably connected inside the rectangular cylinder 310, a sealing block 320 is fixedly connected to the end of the rectangular rod 321, a piston cylinder 330 is fixedly connected inside the shielding door body 120, a pipe 331 connects the piston cylinder 330 and the rectangular cylinder 310, and when the rotating shaft 201 rotates, it can drive the piston cylinder 330 to transmit pressure into the rectangular cylinder 310 so that the sealing block 320 moves closer to the seal 231.

[0041] The piston cylinder 330 is used to transmit pressure into the rectangular cylinder 310, pushing the rectangular rod 321 and the sealing block 320 to move, ensuring that the sealing block 320 is in close contact with the seal 231 to form a seal.

[0042] In the optional embodiments of this example, a preferred configuration is as follows: a piston plate 341 is slidably connected inside the piston cylinder 330, a cylinder 340 is fixedly connected to the piston plate 341, a piston rod 342 is slidably connected inside the cylinder 340 via a first spring 343, and a second guide rod 352 is fixedly connected to the end of the piston rod 342; a second turntable 350 is rotatably connected inside the shielding door body 120, a second groove 351 is provided on the second turntable 350, and the second guide rod 352 is slidably connected to the second groove 351.

[0043] When the second turntable 350 rotates, it drives the second guide rod 352 to slide within the second groove 351. At this time, the second guide rod 352 drives the piston rod 342 and piston plate 341 to move. Since the piston cylinder 330 is fixedly connected within the shielding door body 120, the piston rod 342 can slide axially. The second turntable 350 rotates before the first turntable 210. At this time, the piston rod 342 first transmits pressure to the piston plate 341. Since the sealing strip 231 is not sliding at this time, the sealing block 320 is blocked by the sealing strip 231 and will not move into the gap between adjacent sealing strips 231. Thus, the piston rod 342 pushes... The first spring 343 is compressed and stores energy. Then the first turntable 210 rotates, causing the seal 231 to move towards the edge of the shielding door 120. This increases the gap at the junction of the seals 231, creating enough space for the sealing block 320 to enter. At this time, the spring force of the first spring 343 is released, causing the cylinder 340 to slide away from the piston rod 342. This causes the piston plate 341 to slide, allowing the medium inside the piston cylinder 330 to enter the rectangular cylinder 310. The sealing block 320 then moves to the junction of the seals 231, ensuring that the gap between the seals 231 is sealed.

[0044] In the optional embodiments of this example, a preferred approach is as follows: the rotating shaft 201 is inserted into the middle of the second turntable 350, a second locking block 360 is fixedly connected to the side wall of the rotating shaft 201, an arc-shaped rod 361 is fixedly connected to the second locking block 360, the arc-shaped rod 361 is slidably connected to the second turntable 350, a second spring 362 is sleeved on the arc-shaped rod 361, and the two ends of the second spring 362 abut against the second locking block 360 and the second turntable 350 respectively. When the rotating shaft 201 rotates, the first locking block 202 slides in the arc-shaped groove 203, the second spring 362 is driven by the second turntable 350, and when the rotating shaft 201 continues to rotate, the first locking block 202 abuts against the inner wall of the arc-shaped groove 203, the second turntable 350 stops rotating, and the second locking block 360 compresses the second spring 362.

[0045] like Figure 5 As shown, during the sliding process of the first locking block 202 within the arc-shaped groove 203, the first turntable 210 does not rotate, while the second turntable 350 rotates. (Refer to...) Figure 7In this state, the rotating shaft 201 transmits torque to the second turntable 350 through the second locking block 360 and the second spring 362, causing the second guide rod 352 to slide in the second slide groove 351. When the second guide rod 352 slides to the end of the second slide groove 351, the first locking block 202 moves to the end of the arc groove 203. At this time, the first locking block 202 abuts against the inner wall of the arc groove 203, thereby the rotating shaft 201 drives the first turntable 210 to rotate. Due to the limitation of the second guide rod 352 on the second turntable 350, the continued rotation of the second locking block 360 can compress the second spring 362, and thus the second turntable 350 stops rotating, ensuring that the rotation of the first turntable 210 is not interfered with.

[0046] When the rotating shaft 201 rotates in the reverse direction, the first locking block 202 first slides in the reverse direction in the arc groove 203, the second spring 362 gradually releases its elastic force, and then the second locking block 360 pulls the second turntable 350 in reverse direction through the second spring 362, so that the second guide rod 352 moves in the reverse direction in the second slide groove 351 until the second guide rod 352 returns to the initial position. At this time, the piston plate 341 slides back to its original position, so that the medium returns to the piston cylinder 330, and the sealing block 320 also resets. Then the first locking block 202 moves to the starting position of the arc groove 203, and the rotating shaft 201 continues to rotate in reverse, which can drive the first turntable 210 to rotate in reverse, so that the seal 231 resets, and the shielding door 120 can be opened.

[0047] Regarding the structure of the reinforcement mechanism 400, specifically: the reinforcement mechanism 400 includes four sets of pressure rods 430 that slide at the four corners of the shielding door 120. The shielding door 120 has holes that cooperate with the pressure rods 430. A pressure plate 440 is fixedly connected to one end of the pressure rod 430 away from the shielding door 120. When the pressure rod 430 slides toward the shielding door 120, the pressure plate 440 can apply pressure to the seal strip 231 and the sealing block 320.

[0048] Each set of pressure rods 430 includes four rods, which are respectively located on both sides of one corner of the shielding door body 120. After the sealing strip 231 and sealing block 320 are slid into place to seal the edge of the shielding door body 120, all pressure rods 430 slide towards the shielding door body 120, so that the pressure plate 440 applies pressure to the sealing strip 231 and sealing block 320, so that the sealing strip 231 and sealing block 320 are tightly attached to the shielding door body 120 and the door frame 110, ensuring the sealing of the gap between the shielding door body 120 and the door frame 110 and preventing electromagnetic leakage.

[0049] In the optional embodiments of this example, a preferred embodiment is that a vacuum pump 460 is connected to the shielding door 120, and a negative pressure pipe 450 is connected between the vacuum pump 460 and the hole of the shielding door 120.

[0050] After the rotating shaft 201 closes the shielding door 120, the vacuum pump 460 is started to extract the air from the shielding door 120 and the mating hole of the pressure rod 430, so that the pressure rod 430 drives the pressure plate 440 to press against the seal 231 and the sealing block 320.

[0051] In the optional embodiments of this example, the preferred method is as follows: four rotating plates 410 are hinged to the outside of the door frame 110 near the four seals 231. Each of the four rotating plates 410 has an elastic block connected between its side near the shielding door body 120 and the door frame 110, and an electromagnetic sensor 420 is connected to its end away from the shielding door body 120. When the seals 231 slide away from the shielding door body 120, they can squeeze the end of the rotating plate 410 near the shielding door body 120, so that the rotating plate 410 swings so that the electromagnetic sensor 420 faces the seals 231.

[0052] When the outer seal 231 slides toward the door frame 110, it can squeeze the rotating plate 410, causing the rotating plate 410 to rotate against the resistance of the elastic block. The elastic block can be a sponge or a rubber block. After the rotating plate 410 rotates, the electromagnetic sensor 420 is positioned directly opposite the location where a gap may occur between the shielded door body 120 and the door frame 110, enabling the electromagnetic sensor 420 to capture any tiny electromagnetic leakage signal, thereby monitoring and feeding back the sealing status in real time. Normally, the electromagnetic sensor 420 is located below the surface of the door frame 110 to avoid damage from impacts.

[0053] In the optional embodiments of this example, the preferred method is to have four negative pressure pipes 450, which are connected to the holes of four sets of shielding doors 120 respectively. Each of the four negative pressure pipes 450 is equipped with a solenoid valve 451, and the four solenoid valves 451 correspond one-to-one with four electromagnetic sensors 420. When the electromagnetic sensor 420 detects electromagnetic leakage, the corresponding solenoid valve 451 opens and the vacuum pump 460 starts.

[0054] Each electromagnetic sensor 420 is used to detect electromagnetic leakage on the adjacent side and control the opening and closing of the solenoid valve 451 on the adjacent negative pressure measuring pipe 450. Specifically, the control system obtains the signal from the electromagnetic sensor 420, determines the degree of electromagnetic leakage, and if the leakage exceeds the preset threshold, it immediately controls the corresponding solenoid valve 451 to open and starts the vacuum pump 460, so that the corresponding pressure rod 430 slides further towards the shielding door 120, so that the pressure plate 440 applies pressure to the seal 231 and the sealing block 320 again, thereby improving the sealing effect at the electromagnetic leakage point.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optimized structure for the fit gap of an electromagnetic shielding door, comprising a door mechanism (100), wherein the door mechanism (100) includes a door frame (110) and a shielding door body (120) connected to the door frame (110), characterized in that: The shielding door (120) is provided with a first sealing mechanism (200) and a second sealing mechanism (300). The first sealing mechanism (200) includes sealing strips (231) slidably connected to the four sides of the shielding door (120). The second sealing mechanism (300) includes sealing blocks (320) slidably connected to the intersection of the four sealing strips (231). When the four sealing strips (231) slide away from the shielding door (120), they can seal the gap between the shielding door (120) and the door frame (110). When the four sealing blocks (320) slide away from the shielding door (120), they can seal the gap between the four sealing strips (231).

2. The optimized structure for the fit gap of the electromagnetic shielding door according to claim 1, characterized in that: The first sealing mechanism (200) further includes a slide rod (230) fixedly connected to the seal (231). The slide rod (230) slides linearly on the shielding door body (120). A first turntable (210) is rotatably connected to the middle of the shielding door body (120). A first inclined slide groove (220) is provided on the first turntable (210). A first guide rod (232) is fixedly connected to the end of the slide rod (230). The first guide rod (232) is slidably connected to the first inclined slide groove (220), so that the slide rod (230) can be driven to slide when the first turntable (210) rotates.

3. The optimized structure for the fit gap of the electromagnetic shielding door according to claim 2, characterized in that: A rotating shaft (201) is connected through the middle of the first turntable (210). A first locking block (202) is fixedly connected to the side wall of the rotating shaft (201). An arc-shaped groove (203) that cooperates with the first locking block (202) is opened in the middle of the first turntable (210). When the rotating shaft (201) rotates, the first locking block (202) can slide in the arc-shaped groove (203). After the first locking block (202) abuts against the groove wall of the arc-shaped groove (203), the rotating shaft (201) can drive the first turntable (210) to rotate.

4. The optimized structure for the fit gap of the electromagnetic shielding door according to claim 3, characterized in that: The second sealing mechanism (300) further includes a rectangular tube (310), a rectangular rod (321) is slidably connected inside the rectangular tube (310), the sealing block (320) is fixedly connected to the end of the rectangular rod (321), a piston cylinder (330) is fixedly connected inside the shielding door body (120), a pipe (331) is connected between the piston cylinder (330) and the rectangular tube (310), and when the rotating shaft (201) rotates, it can drive the piston cylinder (330) to transmit pressure into the rectangular tube (310) so that the sealing block (320) moves closer to the seal (231).

5. The optimized structure for the fit gap of the electromagnetic shielding door according to claim 4, characterized in that: A piston plate (341) is slidably connected inside the piston cylinder (330), and a cylinder (340) is fixedly connected to the piston plate (341). A piston rod (342) is slidably connected inside the cylinder (340) through a first spring (343), and a second guide rod (352) is fixedly connected to the end of the piston rod (342). The shielding door body (120) is rotatably connected to a second turntable (350), and a second slide groove (351) is provided on the second turntable (350). The second guide rod (352) is slidably connected to the second slide groove (351).

6. The optimized structure for the mating gap of the electromagnetic shielding door according to claim 5, characterized in that: The rotating shaft (201) is inserted into the middle of the second turntable (350). A second locking block (360) is fixedly connected to the side wall of the rotating shaft (201). An arc-shaped rod (361) is fixedly connected to the second locking block (360). The arc-shaped rod (361) is slidably connected to the second turntable (350). A second spring (362) is sleeved on the arc-shaped rod (361). The two ends of the second spring (362) respectively abut against the second locking block (360). When the rotating shaft (201) rotates, the first locking block (202) slides on the arc groove (203), the second spring (362) is driven by the second rotating disk (350), and when the rotating shaft (201) continues to rotate, the first locking block (202) abuts against the inner wall of the arc groove (203), the second rotating disk (350) stops rotating, and the second locking block (360) compresses the second spring (362).

7. The optimized structure for the fit gap of the electromagnetic shielding door according to claim 6, characterized in that: It also includes a reinforcement mechanism (400), which includes four sets of pressure rods (430) that slide at the four corners of the shielding door body (120). The shielding door body (120) has holes that cooperate with the pressure rods (430). A pressure plate (440) is fixedly connected to one end of the pressure rod (430) away from the shielding door body (120). When the pressure rod (430) slides toward the shielding door body (120), the pressure plate (440) can apply pressure to the seal (231) and the sealing block (320).

8. The optimized structure for the fit gap of the electromagnetic shielding door according to claim 7, characterized in that: A vacuum pump (460) is connected to the shielding door (120), and a negative pressure pipe (450) is connected between the vacuum pump (460) and the hole of the shielding door (120).

9. The optimized structure for the mating gap of the electromagnetic shielding door according to claim 8, characterized in that: Four rotating plates (410) are hinged to the outside of the door frame (110) near the four seals (231). Each of the four rotating plates (410) is connected to the door frame (110) on the side near the shielding door body (120), and an electromagnetic sensor (420) is connected to the end away from the shielding door body (120). When the seal (231) slides away from the shielding door body (120), it can squeeze the end of the rotating plate (410) near the shielding door body (120), so that the rotating plate (410) swings so that the electromagnetic sensor (420) faces the seal (231).

10. The optimized structure for the mating gap of the electromagnetic shielding door according to claim 9, characterized in that: There are four negative pressure pipes (450), and the four negative pressure pipes (450) are respectively connected to the holes of the four sets of shielding door bodies (120). Each of the four negative pressure pipes (450) is equipped with a solenoid valve (451). The four solenoid valves (451) correspond one-to-one with the four electromagnetic sensors (420). When the electromagnetic sensor (420) detects electromagnetic leakage, the corresponding solenoid valve (451) opens and the vacuum pump (460) starts.

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