High-efficiency building for radio telescopes

Abstract

This invention provides a high-efficiency shielding building for radio telescopes, belonging to the technical field of electromagnetic shielding for radio telescopes. It includes a wall, a shielding window, and a shielding door. Ventilation openings are provided in the wall. The shielding window is fixedly connected to the inner wall of the ventilation opening, and an air duct is provided in the window. The shielding door is located at the ventilation opening; the shielding door is rotatably connected to the wall; the shielding door is used to open or close the shielding window. The high-efficiency shielding building for radio telescopes provided by this invention, while ensuring the building's electromagnetic shielding effectiveness, breaks through the limitation of air circulation by fully enclosed walls, constructing an air circulation path between the interior and the outside, effectively solving the core defect of lacking natural ventilation in existing technologies.

Description

Technical Field

[0001] This invention belongs to the technical field of electromagnetic shielding for radio telescopes, and more specifically, relates to a high-efficiency shielding building for radio telescopes. Background Technology

[0002] To meet the stringent electromagnetic environment requirements of radio telescopes, buildings must possess excellent electromagnetic shielding capabilities to isolate external electromagnetic interference and ensure the accuracy and stability of telescope observation data. Since window glass, frames, and gaps can easily become channels for electromagnetic signal leakage or intrusion, current technologies typically eliminate windows to maximize building shielding effectiveness and avoid interfering with the normal operation of radio telescopes. Instead, electromagnetic shielding is achieved through fully enclosed wall structures.

[0003] Existing building technologies suffer from the following drawbacks: the lack of windows directly severs the natural air circulation path between the building's interior and exterior. During daily work, occupants continuously generate carbon dioxide, perspiration volatiles, and other pollutants. Additionally, some auxiliary equipment may release trace amounts of harmful gases during operation. These pollutants cannot be effectively expelled outdoors due to the lack of natural ventilation. Simultaneously, fresh outdoor air has difficulty entering the building, resulting in a long-term closed-loop air circulation system. This leads to a gradual decrease in oxygen concentration, continuous accumulation of pollutants, and ultimately, poor indoor air quality. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency screen building for radio telescopes, aiming to solve the problem of poor ventilation performance in existing radio telescope buildings.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a high-efficiency shielding building for radio telescopes, comprising:

[0006] The wall has ventilation openings;

[0007] A shielded window is fixedly connected to the inner wall of the ventilation opening, and an air duct is provided on the shielded window; and

[0008] A shielding door is installed at the ventilation opening; the shielding door is rotatably connected to the wall; the shielding door is used to open or close the shielding window.

[0009] In one possible implementation, the shielding window includes:

[0010] The frame is fixedly connected to the inner wall of the ventilation opening;

[0011] A first shielding block is fixedly connected to the inner wall of the frame; a first ventilation duct is provided on the first shielding block; and

[0012] The second shielding block is fixedly connected to the inner wall of the frame; the second shielding block is provided with a second ventilation channel, and the air outlet of the first ventilation channel and the air inlet of the second ventilation channel are offset; there is a gap between the first shielding block and the second shielding block.

[0013] In one possible implementation, the inlets of both the first and second ventilation ducts are lower than the outlets.

[0014] In one possible implementation, a first metal wire mesh is fixedly connected to the outer wall of the frame, and a second metal wire mesh is fixedly connected to the inner wall.

[0015] In one possible implementation, the bottom of the frame is provided with a drainage groove.

[0016] In one possible implementation, a hidden groove is provided on the side wall of the wall, and the shielding door is rotatably connected to the middle position of the hidden groove; when the shielding door rotates to one side of the hidden groove, the vent is opened, and when the shielding door rotates to the other side of the hidden groove, the vent is closed.

[0017] In one possible implementation, the shielding door includes:

[0018] A rotating shaft is vertically positioned in the middle of the concealed groove, and the ends of the rotating shaft are fixedly connected to the upper and lower inner walls of the concealed groove, respectively; and

[0019] The door body has one side fitted onto the pivot.

[0020] In one possible implementation, a slider is provided at the bottom of the door body, and a guide is provided at the bottom of the rotating shaft. The guide has two opposing guide ramps, and the slider abuts against the guide ramps. The guide ramps are used to drive the slider to slide, thereby driving the door body to rotate around the rotating shaft and positioning the door body in the hidden groove.

[0021] In one possible implementation, a metal sponge is provided on one side of the door. When the door covers the vent, the metal sponge covers the vent and seals the gap between the door and the vent.

[0022] In one possible implementation, handles are provided on both sides of the door.

[0023] The beneficial effects of the high-efficiency shielding building for radio telescopes provided by this invention are as follows: Compared with the prior art, the high-efficiency shielding building for radio telescopes of this invention, firstly, while ensuring the electromagnetic shielding effectiveness of the building, breaks the limitation of air circulation by fully enclosed walls, constructing an air circulation path between the interior and the outside, effectively solving the core defect of lack of natural ventilation in the prior art. Secondly, through this air circulation path, carbon dioxide, volatile substances from sweat, and trace amounts of harmful gases released by auxiliary equipment generated by personnel activities inside the building can be discharged to the outside, while fresh outdoor air is introduced into the interior, improving indoor oxygen concentration, reducing the accumulation of pollutants inside, and significantly improving indoor air quality. Furthermore, the ventilation state can be flexibly adjusted according to actual usage needs. When enhanced electromagnetic shielding is required or ventilation is not needed, the air circulation path can be cut off, ensuring that the building always meets the high requirements of the radio telescope for the electromagnetic environment, ensuring the accuracy and stability of observation data, achieving a balance between electromagnetic shielding performance and ventilation performance, while improving the flexibility and reliability of building use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of a high-efficiency screen building for radio telescopes provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the shielding window provided in an embodiment of the present invention;

[0027] Figure 3 for Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Wall; 11. Ventilation opening; 12. Concealed groove; 2. Shielded window; 21. Frame; 22. First shielding block; 221. First ventilation duct; 23. Second shielding block; 231. Second ventilation duct; 24. First metal wire mesh; 25. Second metal wire mesh; 26. Drainage groove; 3. Shielded door; 31. Rotating shaft; 311. Guide component; 32. Door body; 321. Sliding block; 4. Metal sponge; 5. Handle. Detailed Implementation

[0030] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] Reference Figures 1 to 3 The high-efficiency shielding building for radio telescopes provided by the present invention will now be described. The high-efficiency shielding building for radio telescopes includes a wall 1, a shielding window 2, and a shielding door 3.

[0032] A ventilation opening 11 is provided on the wall 1. A shielded window 2 is fixedly connected to the inner wall of the ventilation opening 11, and a duct for airflow is provided on the shielded window 2. A shielded door 3 is provided at the ventilation opening 11; the shielded door 3 is rotatably connected to the wall 1; the shielded door 3 is used to open or close the shielded window 2.

[0033] The wall 1 has a ventilation opening 11 extending through its thickness. The size of the ventilation opening 11 is adapted to the outer perimeter of the shielding window 2, providing an installation base for the shielding window 2 and reserving an air circulation channel. The shielding window 2 is fixedly connected to the inner wall of the ventilation opening 11, with an overall thickness slightly less than the thickness of the wall 1, and one side is flush with the outer wall of the wall 1. The shielding window 2 has a slender air duct extending along its thickness, with the duct diameter (or the maximum equivalent cross-sectional size) smaller than the duct length. The shielding window 2 is made of materials with electromagnetic shielding properties, such as metal, and an electromagnetic absorption coating can be applied to the inner wall surface. The shielding door 3 is installed on the inner side wall of the wall 1 and is rotatably connected to the wall 1. The size of the shielding door 3 is larger than the size of the ventilation opening 11 and the shielding window 2, used to completely cover and open or close the shielding window 2. The shielding door 3 itself is made of shielding materials such as metal plates, ensuring that it works in conjunction with the shielding window 2 to block electromagnetic interference when closed.

[0034] On the one hand, the design of shielding window 2, which is "slightly thinner than the wall 1 and flush with the wall 1 on the outside," reduces the gaps at the junction of shielding window 2 and wall 1, lowering the risk of electromagnetic waves intruding through these gaps. On the other hand, the slender air duct's structure, with a diameter smaller than its length, causes electromagnetic waves to undergo multiple reflections on the narrow inner wall of the duct after entering. During reflection, the electromagnetic waves not only experience increased energy loss due to the longer path but are also further absorbed by the shielding material and absorbing coating on the inner wall of the air duct, significantly weakening the intensity of the electromagnetic waves. This effectively prevents external electromagnetic waves from entering the building through the air duct, meeting the high requirements of radio telescopes for a low-electromagnetic-interference environment.

[0035] The slender air duct achieves electromagnetic shielding while ensuring smooth airflow, overcoming the lack of natural ventilation in existing fully enclosed buildings. It introduces fresh outdoor air into the room while simultaneously expelling pollutants such as carbon dioxide and harmful volatile organic compounds generated by indoor activities and equipment operation, thus improving indoor air quality. The design of the shielded door 3, located on the inner wall of the wall 1, facilitates operation by indoor personnel and, when closed, forms a double shielding structure with the inner shielded window 2, further enhancing the overall shielding effect. It also prevents the shielded door 3 from being exposed to the outdoor environment, reducing the impact of wind and rain erosion on its service life.

[0036] In one possible implementation, the shielding window 2 includes a frame 21, a first shielding block 22, and a second shielding block 23.

[0037] The frame 21 is fixedly connected to the inner wall of the vent 11. The first shielding block 22 is fixedly connected to the inner wall of the frame 21; a first ventilation channel 221 is provided on the first shielding block 22. The second shielding block 23 is fixedly connected to the inner wall of the frame 21; a second ventilation channel 231 is provided on the second shielding block 23, and the air outlet of the first ventilation channel 221 and the air inlet of the second ventilation channel 231 are offset; a gap is provided between the first shielding block 22 and the second shielding block 23.

[0038] On the one hand, the first ventilation duct 221 on the first shielding block 22 and the second ventilation duct 231 on the second shielding block 23 form an air circulation path, ensuring natural ventilation inside and outside the building. This effectively solves the problem of poor air quality in existing fully enclosed buildings, allowing for the timely removal of pollutants generated by indoor personnel activities and equipment operation, and the introduction of fresh outdoor air. On the other hand, the staggered arrangement of the air outlet of the first ventilation duct 221 and the air inlet of the second ventilation duct 231 extends the air circulation path and forces external electromagnetic waves to detour multiple times before passing through, increasing the propagation loss of electromagnetic waves inside the shielding window 2. Combined with the gap between the first shielding block 22 and the second shielding block 23, this further weakens the intensity of electromagnetic waves, preventing them from intruding into the building through the ventilation channels and ensuring the low electromagnetic interference environment required by the radio telescope. Furthermore, this modular shielding window 2 structure allows for flexible adjustment of the size and staggered degree of the first ventilation duct 221 and the second ventilation duct 231 according to ventilation needs and shielding effectiveness requirements, balancing practicality and adaptability, and improving the overall balance between electromagnetic shielding and ventilation performance of the building.

[0039] In a preferred embodiment, the frame 21, the first shielding block 22, and the second shielding block 23 are all made of aluminum alloy. Specifically, 6061-T6 aluminum alloy can be selected. This material has good electromagnetic shielding performance, and its metal structure can effectively reflect external electromagnetic waves. It also has high strength and corrosion resistance, which can adapt to the complex outdoor environment where radio telescopes are often located. In addition, aluminum alloy has a low density, which can reduce the overall weight of the shielding window 2 compared with other heavy metal materials, and reduce the load-bearing pressure on the wall 1 at the ventilation opening 11. Furthermore, 6061-T6 aluminum alloy has excellent processing performance, which makes it easy to precisely cut the frame 21 to fit the size of the ventilation opening 11. It can also perform high-precision drilling and forming of the first ventilation channel 221 and the second ventilation channel 231 on the first shielding block 22 and the second shielding block 23, ensuring the accuracy of the ventilation channel misalignment structure and ensuring the dual effect of shielding and ventilation.

[0040] In a preferred embodiment, the frame 21, the first shielding block 22, and the second shielding block 23 are all made of brass. Specifically, H62 brass can be selected, which contains approximately 62% copper and has excellent conductivity. Good conductivity can improve electromagnetic shielding effectiveness, more efficiently reflecting and weakening electromagnetic waves entering the shielding window 2. Especially for high-frequency electromagnetic signals that are easily interfered with in radio telescope observations, the shielding effect is better than most aluminum alloy materials. At the same time, brass surfaces easily form an oxide film, which can enhance resistance to atmospheric corrosion and prevent the shielding performance from declining due to rust during long-term use. Brass also has good ductility, which can reduce the generation of metal debris when processing the first ventilation channel 221 and the second ventilation channel 231, ensuring a smooth inner wall of the ventilation channel, reducing airflow resistance, and balancing shielding performance and ventilation efficiency.

[0041] In a preferred embodiment, the frame 21, the first shielding block 22, and the second shielding block 23 are all made of stainless steel. Specifically, 304 stainless steel can be selected. This material contains chromium and nickel, and has extremely strong corrosion resistance and oxidation resistance. Even in the high-salt-fog coastal environment where the radio telescope may be located, it can maintain structural stability for a long time, avoiding damage to the integrity of the shielding window 2 due to metal corrosion. 304 stainless steel has high mechanical strength and can withstand external forces such as outdoor wind and rain impacts, preventing deformation of the frame 21 and shielding blocks that could lead to misalignment and structural failure of the ventilation duct. Moreover, its electromagnetic shielding performance is stable and will not fluctuate due to changes in environmental humidity and temperature, ensuring a low electromagnetic interference environment inside the radio telescope building for a long time. At the same time, the long service life of stainless steel reduces the frequency of maintenance and replacement of the shielding window 2, lowering the overall operating cost.

[0042] In one possible implementation, the height of the air inlets of both the first ventilation duct 221 and the second ventilation duct 231 is lower than that of the air outlet.

[0043] On the one hand, the inclined design of the first and second air ducts allows air to flow naturally upwards within the ducts. Combined with potential temperature or pressure differences between the inside and outside of the building, this accelerates air circulation, improves natural ventilation efficiency, and more effectively removes pollutants such as carbon dioxide and harmful volatile organic compounds generated by indoor activities and equipment operation. Simultaneously, it introduces fresh outdoor air, further improving indoor air quality and preventing pollutant accumulation caused by slow air circulation. On the other hand, compared to horizontal ducts, the inclined design of the air ducts extends the propagation path of electromagnetic waves within the channel. This forces the electromagnetic waves to travel along the inclined trajectory and repeatedly contact the inner wall of the duct, increasing the probability of reflection and absorption by the inner wall shielding material, further weakening the electromagnetic wave intensity and enhancing the shielding effect. Furthermore, when rainwater or dew is present outdoors, the inclined structure, with the air inlet lower than the air outlet, effectively prevents liquid water from flowing back into the building along the duct, avoiding any impact on indoor equipment, electrical circuits, or the working environment for personnel.

[0044] In one possible implementation, a first metal wire mesh 24 is fixedly connected to the outer wall of the frame 21, and a second metal wire mesh 25 is fixedly connected to the inner wall.

[0045] With its dense metal mesh structure, the metal wire mesh can provide secondary blocking for electromagnetic waves that penetrate the frame 21 or intrude through the gap between the frame 21 and the ventilation opening 11, especially for high-frequency electromagnetic signals. The mesh structure can weaken its strength through reflection and attenuation, forming a "multi-shielding" system with the frame 21, the first shielding block 22, and the second shielding block 23. This significantly reduces the risk of electromagnetic waves breaking through the shielding window 2 and entering the building, better meeting the requirements of radio telescopes for a low electromagnetic interference environment.

[0046] In one possible implementation, the bottom of the frame 21 is provided with a drainage groove 26.

[0047] On the one hand, when outdoor rainwater, dew, or other liquid water enters the interior of the shielded window 2 through the ventilation duct, or when condensation occurs indoors due to temperature differences, the drainage channel 26 can quickly collect this moisture and drain it out of the frame 21 through its own drainage path. This prevents moisture from accumulating inside the frame 21 and in the gaps between the first shielding block 22 and the second shielding block 23, preventing moisture from corroding the metal material of the shielded window 2 and causing rust, thus ensuring the long-term stability of the electromagnetic shielding performance of the shielded window 2 and avoiding damage to the shielding structure and increased risk of electromagnetic wave intrusion due to rust. On the other hand, the drainage channel 26 prevents moisture from seeping into the building interior along the ventilation opening 11, preventing damage to indoor equipment and circuits due to moisture, while maintaining a dry indoor environment and ensuring the comfort of personnel. In addition, the drainage channel 26 can reduce the risk of moisture clogging the ventilation duct, ensuring that the first ventilation duct 221 and the second ventilation duct 231 remain unobstructed, without affecting the natural ventilation effect inside and outside the building, achieving synergistic protection of electromagnetic shielding, ventilation function, and waterproofing and drainage, and improving the overall building's adaptability to complex outdoor environments.

[0048] In one possible implementation, a hidden groove 12 is provided on the side wall of the wall 1, and the shielding door 3 is rotatably connected to the middle position of the hidden groove 12; when the shielding door 3 rotates to one side of the hidden groove 12, the vent 11 is opened, and when the shielding door 3 rotates to the other side of the hidden groove 12, the vent 11 is closed.

[0049] On the one hand, when the shielding door 3 rotates to one side of the concealed groove 12 and opens the ventilation opening 11, the door body 32 can be completely stored in the concealed groove 12. This avoids the door body 32 protruding from the wall 1 and occupying indoor or outdoor space, reducing interference with personnel activities and equipment layout. It also prevents the door body 32 from being exposed to the outside and damaged by collisions, thus extending its service life. On the other hand, when the shielding door 3 rotates to the other side of the concealed groove 12 and closes the ventilation opening 11, the structure of the concealed groove 12 can limit the door body 32 to a certain extent, ensuring that the door body 32 accurately covers the ventilation opening 11, reducing shielding gaps caused by door body 32 offset. Combined with the shielding performance of the shielding door 3 itself, this further blocks electromagnetic waves from entering through the ventilation opening 11. In addition, the hidden groove 12 makes the opening and closing trajectory of the shielding door 3 more regular, avoiding the jamming and misalignment problems that may occur when the traditional external door 32 is opened and closed, improving the ease of operation. At the same time, the hidden design makes the appearance of the wall 1 simpler, reduces the impact of additional protruding structures on the overall airtightness of the building, and indirectly helps to maintain a low electromagnetic interference environment inside the building, meeting the dual requirements of radio telescopes for building function and shielding effectiveness.

[0050] In one possible implementation, the shielding door 3 includes a pivot 31 and a door body 32.

[0051] A pivot 31 is vertically positioned in the middle of the concealed groove 12, with its ends fixedly connected to the upper and lower inner walls of the concealed groove 12. One side of the door body 32 is fitted onto the pivot 31.

[0052] Specifically, the rotating shaft 31 is vertically positioned in the middle of the concealed groove 12. The top end of the rotating shaft 31 is fixedly connected to the top inner wall of the concealed groove 12, and the bottom end of the rotating shaft 31 is fixedly connected to the bottom inner wall of the concealed groove 12. The axis of the rotating shaft 31 coincides with the vertical centerline of the concealed groove 12, ensuring that the rotating shaft 31 provides centered support for the door body 32. The door body 32 is a rectangular plate structure adapted to the size of the ventilation opening 11. A vertically extending mounting through hole is provided on the side of the door body 32 near the centerline of the concealed groove 12. The inner diameter of the mounting through hole is clearance-fitted with the outer diameter of the rotating shaft 31. The door body 32 is fitted onto the rotating shaft 31 through this mounting through hole, allowing the door body 32 to rotate flexibly around the rotating shaft 31 in the horizontal direction. Meanwhile, the inner wall of the mounting through hole is provided with a wear-resistant coating to reduce frictional wear between the mounting through hole and the pivot 31 when the door 32 rotates, thus extending the service life of both. The wear-resistant coating also prevents the metal door 32 and the pivot 31 from generating metal debris due to long-term friction, preventing debris accumulation from affecting the rotation flexibility of the door 32.

[0053] By refining the shielding door 3 into a vertically arranged pivot 31 and a door body 32 fitted with the pivot 31, the opening and closing function of the shielding door 3 is stabilized and the shielding effectiveness is precisely guaranteed. On the one hand, the design of the pivot 31 being vertically fixed to the upper and lower inner walls of the hidden groove 12 provides a stable rotational support for the door body 32, preventing the door body 32 from shifting or shaking during opening and closing, and ensuring that the door body 32 can be accurately rotated to both sides of the hidden groove 12 to open and close the ventilation opening 11. At the same time, the structure of the vertical pivot 31 is adapted to the vertical dimensions of most building ventilation openings 11, allowing the door body 32 to completely cover the ventilation opening 11, reducing electromagnetic shielding gaps caused by misalignment of the door body 32.

[0054] On the other hand, the connection method of the pivot 31 on one side of the door 32 ensures that the door 32 always maintains its compatibility with the hidden groove 12 when rotating around the pivot 31, avoiding collision and wear between the door 32 and the wall 1 or the inner wall of the hidden groove 12 when the door 32 is opened and closed, thus extending the service life of the shielding door 3. Moreover, this structure allows the door 32 to fit tightly against the wall 1 around the ventilation opening 11 when closed, and together with the shielding material of the door 32 itself, further blocking electromagnetic waves from entering from the ventilation opening 11.

[0055] In one possible implementation, a slider 321 is provided at the bottom of the door body 32, and a guide 311 is provided at the bottom of the rotating shaft 31. The guide 311 has two opposing guide slopes, and the slider 321 abuts against the guide slopes. The guide slopes are used to drive the slider 321 to slide, thereby driving the door body 32 to rotate around the rotating shaft 31 and placing the door body in the hidden groove 12.

[0056] Specifically, the two guide ramps are symmetrically arranged in a herringbone shape, extending outwards to both sides with the axis of rotation 31 as the center. The two guide ramps can be planar ramps with an inclination angle controlled between 30° and 45° to ensure stable driving force for the slider 321 as it slides along the ramp. Alternatively, the two guide ramps can be arc-shaped ramps, with the radius of curvature matching the sliding trajectory of the slider 321, reducing stress concentration when the slider 321 contacts the ramp and improving sliding smoothness.

[0057] Meanwhile, the connecting section between the two guide ramps can be designed with a sharp corner structure, with rounded corners to prevent sharp edges from scratching the slider 321 or hindering sliding. Alternatively, an arc-shaped guide surface can be provided in the connecting section, with the curvature of the arc-shaped guide surface smoothly transitioning to the arc-shaped ramps on both sides, allowing the slider 321 to slide from one ramp to the other without any jamming, further optimizing the sliding experience. The slider 321 abuts against the guide ramp, and the bottom of the slider 321 has a contact surface adapted to the guide ramp to ensure a tight fit between the two.

[0058] On one hand, the two guide ramps are arranged in a herringbone shape, which, together with the planar or curved ramp structure, provides a precise and stable guide path for the slider 321. When using a planar ramp, the tilt angle of 30°-45° can balance the driving force and sliding resistance, ensuring that the door 32 can rotate smoothly around the pivot 31 under the drive of the slider 321, avoiding jamming of the door 32 due to insufficient driving force or difficulty in operation due to excessive resistance. When using a curved ramp, the radius of curvature of the adapted trajectory can reduce the frictional wear between the slider 321 and the ramp, extend the service life of both, and reduce sliding noise. The rounded corners or curved guide surface design of the connecting section can eliminate sliding dead angles, prevent the slider 321 from getting stuck at the ramp connection, and ensure that the switching process of the door 32 from "opening and storing in the hidden slot 12" to "closing and covering the vent 11" is smooth and unobstructed, improving the convenience of operation.

[0059] On the other hand, this structure, through the cooperation of the guide ramp and the slider 321, achieves a "semi-automatic" drive for the rotation of the door 32: when the door 32 is pushed, the slider 321 slides along the corresponding guide ramp. The inclined structure of the ramp converts the thrust into the rotational force of the door 32 around the pivot 31. Without the need for precise manual control of the rotation angle of the door 32, the door 32 can automatically adapt to the spatial dimensions of the hidden slot 12 and be stored therein, avoiding the door 32 from rotating off-center and failing to be completely hidden or colliding with the inner wall of the hidden slot 12. At the same time, the symmetrical design of the herringbone ramp ensures that the driving force is consistent when the door 32 rotates to both sides, making the opening and closing operation of the door 32 feel balanced, further ensuring the stability and reliability of the shielded door 3, and indirectly maintaining the accurate coverage of the ventilation opening 11 by the shielded door 3, avoiding the electromagnetic shielding gap caused by the misalignment of the door 32 due to improper operation.

[0060] In one possible implementation, a metal sponge 4 is provided on one side of the door 32. When the door 32 covers the vent 11, the metal sponge 4 covers the vent 11 and seals the gap between the door 32 and the vent 11.

[0061] The metal sponge 4 combines the electromagnetic shielding properties of metal with the flexible structure of sponge. It can reflect and absorb electromagnetic waves that attempt to intrude from the gap between the door 32 and the vent 11 through its metal components, and fill the tiny gaps that are easily generated when the rigid door 32 is connected to the wall 1. This prevents the gaps from becoming channels for electromagnetic signal leakage or intrusion, further improving the overall electromagnetic shielding effectiveness of the building and ensuring the low electromagnetic interference observation environment required by the radio telescope.

[0062] The flexible metal sponge 4 can fit tightly against the wall 1 around the vent 11 when the door 32 is closed. Even if there are slight processing errors or installation deviations in the door 32 or the wall 1, it can adapt to the shape of the gap through its own deformation, effectively blocking air, dust, water vapor and other substances from entering the room through the gap. This not only avoids outdoor pollutants from affecting indoor air quality, but also prevents water vapor from corroding the structure around the door 32 or the vent 11 and causing damage to the components. At the same time, it reduces the collision wear caused by rigid contact when the door 32 is closed, extends the service life of the shielding door 3, and achieves multiple effects of electromagnetic shielding, sealing protection and structural protection, further ensuring the practicality and reliability of the high-efficiency shielding building for radio telescopes.

[0063] In one possible implementation, handles 5 are provided on both sides of the door body 32.

[0064] When the shielding door 3 is retracted into the concealed slot 12, personnel can turn it out through the handle 5 on one side of the concealed slot 12 to close the vent 11. When the door 32 covers the vent 11, it can be turned back into the concealed slot 12 through the handle 5 on the other side to open the vent 11. The two-way operation adapts to the operational needs of the door 32 in the two core states of "open and retracted" and "closed shielding".

[0065] The beneficial effects of the high-efficiency shielding building for radio telescopes provided by this invention are as follows: Compared with the prior art, the high-efficiency shielding building for radio telescopes of this invention, with the shielding window 2 at the ventilation opening 11 of the wall 1, forms a multi-layer electromagnetic barrier structure through the frame 21, the first shielding block 22 and the second shielding block 23 with staggered ventilation channels, and the metal wire mesh. This structure can weaken electromagnetic waves by utilizing the slender air ducts and staggered paths, preventing external interference from intruding and ensuring the radio telescope's observation environment. It also allows for air circulation between the inside and outside of the building through the air ducts, expelling pollutants generated by indoor personnel activities and equipment, and introducing fresh air to improve air quality. The rotatable shielding door 3, designed with a hidden slot 12, can flexibly switch between ventilation and shielding states. When closed, it forms double shielding with the shielding window 2; when open, it is stored in the hidden slot 12 without occupying space. The overall design breaks the limitations of a fully enclosed wall 1, ensuring high shielding efficiency while meeting natural ventilation requirements.

[0066] The shielded window 2 features an inclined ventilation duct to accelerate air circulation and prevent rainwater backflow, while the drainage channel 26 prevents moisture accumulation and corrosion of components. The hinge 31 and slider 321 of the shielded door 3 cooperate with the guide slope to ensure smooth rotation of the door 32 and precise closure or coverage of the ventilation opening 11. Metal sponge 4 seals gaps to enhance shielding and sealing, while handles 5 on both sides improve ease of operation. These designs collectively achieve multiple effects of electromagnetic shielding, ventilation, waterproofing, and ease of operation, extending the service life of components. This allows the building to meet the long-term requirements of radio telescopes for low electromagnetic interference environments while ensuring indoor comfort and equipment stability, thus enhancing its overall usability. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high shielding building for radio telescopes, characterized in that, The utility model relates to a wall body, a shielding window and a shielding door. The wall body has a ventilation opening. The shielding window is fixedly connected to the inner wall of the ventilation opening and has an air duct. The shielding door is rotatably connected to the wall body and is used to open or close the shielding window. A hidden slot is formed in the side wall of the wall body. The shielding door is rotatably connected to the middle position of the hidden slot.

2. The high-screening-efficiency building for radio telescopes according to claim 1, wherein When the shielding door is rotated to one side of the hidden slot, the ventilation opening is opened. When the shielding door is rotated to the other side of the hidden slot, the ventilation opening is closed. The shielding window includes a frame body, a first shielding block and a second shielding block. The frame body is fixedly connected to the inner wall of the ventilation opening.

3. The high-screening-efficiency building for radio telescopes according to claim 2, wherein The first shielding block is fixedly connected to the inner wall of the frame body and has a first air duct.

4. The high-screening-efficiency building for radio telescopes according to claim 2, wherein The second shielding block is fixedly connected to the inner wall of the frame body and has a second air duct.

5. The high-screening-efficiency building for radio telescopes according to claim 2, wherein The outlet of the first air duct is located opposite to the inlet of the second air duct.

6. The high-shielding building for radio telescopes according to claim 1, wherein The first air duct and the second air duct have a gap between the first shielding block and the second shielding block. The height of the inlets of the first air duct and the second air duct is lower than that of the outlets. The frame body has a first metal wire mesh fixedly connected to the outer wall and a second metal wire mesh fixedly connected to the inner wall.

7. The high-screening-efficiency building for radio telescopes according to claim 6, wherein The frame body has a drainage groove at the bottom.

8. The high-screening-efficiency building for radio telescopes according to claim 6, wherein The shielding door includes a rotating shaft and a door body.

9. The high-screening-efficiency building for radio telescopes according to claim 6, wherein The rotating shaft is vertically arranged at the middle position of the hidden slot and has ends fixedly connected to the upper and lower inner walls of the hidden slot. The door body is sleeved on the rotating shaft. The door body has a sliding block at the bottom and the rotating shaft has a guide member at the bottom. The guide member has two opposite guide inclined surfaces. The sliding block is in abutment with the guide inclined surfaces. The guide inclined surfaces are used to drive the sliding block to slide, thereby driving the door body to rotate around the rotating shaft and making the door body located in the hidden slot. The door body has a metal sponge on one side. When the door body covers the ventilation opening, the metal sponge covers the ventilation opening and seals the gap between the door body and the ventilation opening. The door body has a handle on each side.

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