Toilet with shielding space

Abstract

The invention relates to the technical field of electromagnetic shielding, in particular to a shielded space toilet which comprises a toilet body, the wall of the toilet body is of a shielding structure to prevent electromagnetic leakage, the toilet body is provided with an inlet, and the inlet is communicated with a main body inlet of a main body building in a spliced mode; the squatting cabin is arranged in the toilet, the squatting cabin comprises a cabin door, the cabin door is an electromagnetic shielding door, the part, except the cabin door, of the squatting cabin adopts an electromagnetic shielding mode, and a cabin ventilation opening connected with a main building ventilation system is formed in the squatting cabin. A waveguide plate is arranged in the cabin ventilation opening; the toilet pit is arranged in the squatting position cabin; and the covering part is arranged on the toilet pit and used for preventing electromagnetic leakage, so that the reliability and the fault-tolerant capability of the system are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electromagnetic shielding, in particular to a shielded space toilet suitable for internal space of a building with high electromagnetic information security requirements. BACKGROUND

[0002] Building shielding is a technical measure taken against electromagnetic wave interference and protection, aiming to isolate internal and external electromagnetic wave interference and prevent passive leakage of electromagnetic information inside the building, thereby ensuring information security, through design and material selection of the building itself and use of special shielding facilities. In implementation, metal materials are mainly used on the outer wall, ceiling, floor and other parts of the building to suppress the propagation of electromagnetic waves. At the same time, windows with electromagnetic shielding function are used to reduce the entry of electromagnetic radiation while maintaining lighting.

[0003] However, in the actual design of electromagnetic shielding buildings, the setting of public toilets may become a weak link inside the shielding body. In particular, the drain and exhaust ports of the toilet may become a way for electromagnetic waves to penetrate into the interior of the shielding building, causing information security risks. In addition, the doors and windows of the toilet and the operation of opening and closing the door during use may also cause temporary failure of electromagnetic shielding, increasing the risk of information leakage.

[0004] Currently, conventional electromagnetic shielding toilets usually only focus on the shielding treatment of walls, ceilings and floors, ignoring the dynamic shielding problem during use. Especially the electromagnetic leakage risk caused by the exposure of the toilet bowl during defecation in the drainage and ventilation system, lacks a systematic solution. These weak links may become the "Achilles heel" of the entire shielding system, greatly reducing the electromagnetic shielding effect of the building. SUMMARY

[0005] The purpose of the present application is to solve the problem of electromagnetic leakage in the internal toilet of the shielding building in the prior art, especially the electromagnetic leakage risk caused by the exposure of the toilet bowl during defecation in the ventilation port and drain port of the toilet during use, and to provide a shielded space toilet with all-round protection.

[0006] The present application discloses a shielded space toilet, comprising:

[0007] The toilet has a wall body made of a shielding structure to prevent electromagnetic leakage, and an entrance port is provided in the toilet and connected to the main entrance port of the main building.

[0008] At least one squatting cabin is arranged in the toilet, the squatting cabin comprises a cabin door, the cabin door is an electromagnetic shielding door, the squatting cabin is electromagnetically shielded except the cabin door, a cabin ventilation opening connected with a main building ventilation system is arranged on the squatting cabin, and a waveguide plate is arranged in the cabin ventilation opening;

[0009] A toilet bowl is arranged in the squatting cabin.

[0010] A cover is arranged on the toilet bowl to prevent electromagnetic leakage.

[0011] A linkage mechanism is arranged between the cabin door and the cover, so that only one of the cabin door and the cover can be in an open state at the same time.

[0012] Preferably, a shielding steel plate is embedded in the wall of the toilet to form the shielding structure.

[0013] Preferably, the cabin ventilation opening is provided with multiple layers of waveguide plates, each layer of waveguide plate is made of conductive material, and the ventilation holes between adjacent layers of waveguide plates are arranged in a staggered manner.

[0014] Preferably, a plum-blossom pile novel waveguide pipe is arranged in the drain opening of the toilet bowl, and the plum-blossom pile novel waveguide pipe is formed by parallel arrangement of multiple small waveguide pipes made of conductive material.

[0015] Preferably, the diameter of each small waveguide pipe in the plum-blossom pile novel waveguide pipe is less than half of the wavelength of a target electromagnetic wave.

[0016] Preferably, the linkage mechanism comprises a mechanical interlocking device connected with the cabin door and the cover, so that when the cabin door is opened, the cover is locked in a closed position, and when the cabin door is closed, the cover is unlocked and can be opened.

[0017] Preferably, a conductive elastic sealing member is arranged at the periphery of the cover, and the conductive elastic sealing member is in contact with the periphery of the toilet bowl to form an electromagnetic seal when the cover is in a closed state.

[0018] Preferably, a conductive elastic contact member is arranged between the door frame and the door leaf of the cabin door to form a continuous electromagnetic shielding layer in the closed state of the cabin door.

[0019] Preferably, multiple squatting cabins are arranged in the toilet, and the squatting cabins are separated by electromagnetic shielding partition walls.

[0020] Preferably, the ceiling and the floor of the toilet are made of electromagnetic shielding materials, and together with the wall, form a complete shielding space.

[0021] This invention ensures the integrity of electromagnetic shielding under all usage conditions by employing a shielding structure in the bathroom walls and designing a special linkage mechanism between the door and the toilet bowl cover within the squatting compartment. Simultaneously, by installing waveguide plates at the ventilation openings and novel staggered waveguides at the drainage outlets, the conflict between ventilation and drainage functions and electromagnetic shielding is resolved, achieving a perfect balance between practicality and safety.

[0022] The present invention has the following beneficial effects:

[0023] Comprehensive protection: A multi-layered protection system is formed by shielding the toilet walls, the entire squatting compartment, the door, and the toilet cover, which greatly improves the system's reliability and fault tolerance.

[0024] Dynamic shielding protection: The innovatively designed linkage mechanism between the hatch and the toilet cover ensures that electromagnetic shielding is maintained at all times during toilet use, solving the problem of electromagnetic leakage during the use of traditional technologies.

[0025] Balancing functionality and safety: Through special designs such as waveguide plates and novel plum blossom-shaped waveguides, efficient electromagnetic shielding is achieved while ensuring basic functions such as ventilation and drainage, without affecting the normal use of the bathroom.

[0026] Highly practical: It adopts a relatively simple mechanical design approach, which reduces system complexity and failure rate, improves practicality and reliability, and facilitates practical application and maintenance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the bathroom. Figure 3 This is the front view of the squatting cabin; Figure 4 This is a top view of the squatting cabin.

[0028] Reference table of attached diagrams: Main building entrance 101; Toilet 200, entrance 201; Squat stall 300, vent 310, door 320, latrine 330, cover 340. Detailed Implementation

[0029] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0030] In a preferred embodiment of the present invention, such as Figure 1 andFigure 2 As shown, a kind of shielding space toilet is provided, including toilet 200, at least one squatting cabin 300, toilet bowl 330 and cover 340.

[0031] The wall of toilet 200 adopts shielding structure to prevent electromagnetic leakage. Preferably, the wall of toilet 200 is embedded with shielding steel plate to form effective electromagnetic shielding layer. The thickness of shielding steel plate here is preferably 0.5-2mm, and the shielding effectiveness according to actual demand can be appropriately adjusted. In high security level place, 1.5-2mm thickness low carbon steel plate can be used, surface galvanized or chrome plated, which provides good shielding performance and anti-corrosion characteristics. The connecting point between shielding steel plates should be welded or connected by conductive glue, and the electrical continuity of connecting point should be ensured to avoid "shielding gap".

[0032] Toilet 200 is provided with entrance 201 which is connected with main entrance 101 reserved in main building. This connection mode ensures the continuity of electromagnetic shielding and avoids electromagnetic leakage at joint. In an embodiment of the application, conductive elastic sealing strip is arranged between the door frame of entrance 201 and the door frame of main entrance 101 to further enhance the electromagnetic shielding effect at joint. The conductive elastic sealing strip can use silver powder filled silicone material or silver plated copper braid sleeve compression sealing strip, which has excellent conductivity and sealing property. The compression rate of sealing strip is preferably kept in the range of 25%-35%, which can ensure good contact and will not reduce service life due to excessive compression. Sealing strip should be uniformly arranged around the door frame, especially the bottom edge, which should be particularly noted to prevent gap caused by uneven ground or wear.

[0033] As shown in Figure 3 and Figure 4 At least one squatting cabin 300 is arranged in toilet 200. Squatting cabin 300 includes cabin door 320 which is electromagnetic shielding door made of conductive material and ensures reliable electrical connection with door frame. Preferably, cabin door 320 adopts aluminum alloy frame, fills honeycomb conductive material inside, and covers with aluminum plate or steel plate to form "sandwich" structure, which has light weight and shielding effectiveness. The part of squatting cabin 300 except cabin door 320 adopts electromagnetic shielding mode, such as covering with 1mm thick galvanized steel plate or embedding 20-40 mesh stainless steel mesh in wall. These shielding materials should be closely combined with wall structure to avoid the decline of shielding effect caused by stress deformation or aging.

[0034] The squatting cabin 300 is provided with a cabin vent 310 connected to the ventilation system of the main building to ensure air circulation. In practical applications, the connection of the ventilation duct should be connected by conductive flange, and a metal woven gasket is arranged between the flanges to ensure electrical continuity. The fastening bolts between the flanges should be made of conductive material, with a spacing of not more than 5 cm, to ensure uniform pressure and good electrical connection.

[0035] In an important technical aspect of the present application, a waveguide plate is arranged in the cabin vent 310. Preferably, the cabin vent 310 is provided with multiple layers of waveguide plates, each layer of waveguide plate is made of conductive material, and the ventilation holes between adjacent layers of waveguide plates are arranged in a staggered manner. The waveguide plate can be made of 2mm thick brass or aluminum alloy material, and the surface is coated with a corrosion-resistant coating to prolong the service life while maintaining good electrical conductivity. The specific structure of the waveguide plate can be "honeycomb" or "louver", the former is suitable for vertical vents, and the latter is suitable for horizontal vents, which can more effectively block rainwater from penetrating.

[0036] The design of such waveguide plates is based on the principle of cutoff frequency of electromagnetic wave propagation, when the size of the waveguide is less than half the wavelength of the electromagnetic wave, the electromagnetic wave will not be able to propagate in the waveguide. Specifically, for a rectangular waveguide, its cutoff frequency can be calculated by the following formula:

[0037]

[0038] wherein, is the cutoff frequency (Hz), is the speed of light (about m / s), is the width of the waveguide (m). For example, when it is necessary to shield electromagnetic waves with a frequency of 1GHz, the width of the waveguide should be less than:

[0039]

[0040] Therefore, in the embodiments of the present application, the diameter of the ventilation holes on the waveguide plate can be designed to be 30-50mm, which is sufficient to block most common frequency electromagnetic waves while ensuring sufficient ventilation effect. For higher safety level requirements, the ventilation hole diameter can be reduced to 15-25mm to shield higher frequency electromagnetic waves. The multiple layers of staggered waveguide plates further enhance the electromagnetic shielding effect, the distance between adjacent layers of waveguide plates is preferably 30-50mm, and the number of layers is generally 2-3 layers, which can be increased to 4-5 layers in special cases. The key to staggered arrangement is to ensure that any straight light path is at least blocked once by the waveguide plate, and it is generally ideal to stagger the ventilation holes of adjacent layers by half the aperture.

[0041] ​​The toilet 330 is arranged in the squatting cabin 300 to provide basic functions for the user. In a preferred embodiment of the present application, a new type of waveguide tube is arranged in the drain of the toilet 330. The waveguide tube is formed by a plurality of small waveguide tubes made of conductive material arranged side by side, showing a distribution pattern similar to a plum blossom. The plum blossom arrangement can be a dense hexagonal arrangement with one waveguide tube in the center surrounded by six waveguide tubes of the same size, or other regular arrangement, the key is to ensure that there is no gap between the waveguide tubes larger than half of the target shielding wavelength. The waveguide tube can be made of corrosion-resistant conductive materials such as stainless steel or aluminum alloy, with a wall thickness of 1-2 mm and a surface treatment of corrosion-resistant coating or electroplating.

[0042] The diameter of each small waveguide tube in the new type of plum blossom waveguide tube is less than half of the wavelength of the target electromagnetic wave, ensuring that the electromagnetic wave cannot penetrate, while water molecules can flow freely, ensuring normal drainage function. The length of the small waveguide tube should be at least 5 times the diameter, usually 100-200 mm, to ensure sufficient attenuation path. The inner wall of the pipe should be smooth to reduce water flow resistance and the possibility of sediment deposition.

[0043] For example, if the lowest frequency to be shielded is 300 MHz, the maximum diameter of the small waveguide tube should be:

[0044] ,

[0045] For practical considerations, in the embodiments of the present application, the diameter of the small waveguide tube can be designed to be 10-30 mm, which can effectively shield electromagnetic waves of common frequencies and ensure sufficient drainage capacity. In high security level places, smaller diameter multi-tube design can be used, such as increasing the number of 8-12 mm diameter waveguide tubes to 20-30, increasing the total drainage area while maintaining higher shielding effect.

[0046] The cover 340 is arranged on the toilet 330 to prevent electromagnetic leakage. Preferably, the cover 340 is made of conductive material, such as 3 mm thick stainless steel plate or aluminum alloy plate, and the surface can be treated for anti-skid and anti-corrosion. The cover 340 can be flat, arc-shaped or stepped in structure, and the appropriate shape can be selected according to the comfort of use and the manufacturing process. Under the premise of meeting the basic functions, the weight of the cover 340 should be controlled within the range that the user can easily operate, usually not more than 3 kg.

[0047] More preferably, the periphery of the cover 340 is provided with an electrically conductive elastic seal that contacts the periphery of the toilet bowl 330 to form an electromagnetic seal when the cover 340 is in the closed state. This sealing structure ensures the electromagnetic shielding effect of the cover 340 in the closed state, preventing electromagnetic leakage at the toilet bowl 330. The electrically conductive elastic seal can be made of electrically conductive silicone with a metal content of not less than 70% or a metal braid coated elastomer, etc., with an optimal compression rate of 20%-30%. The installation method of the seal can be embedded or pasted, the former being more suitable for long-term use, and the latter being convenient to replace and maintain. The connection between the seal and the cover 340 should ensure good electrical contact, and the resistance at the connection point should be less than 0.01 ohm.

[0048] One of the core innovations of the present application is that a linkage mechanism is provided between the hatch 320 and the cover 340, so that only one of the hatch 320 and the cover 340 can be in the open state at the same time. This linkage design ensures that the system can maintain the integrity of electromagnetic shielding in any working state. Specifically, when the hatch 320 is in the open state, the cover 340 must be in the closed state to shield electromagnetic leakage at the toilet bowl 330; when the hatch 320 is closed, the squatting cabin 300 as a whole is in a closed state to prevent electromagnetic leakage, at which time the cover 340 can be opened to expose the toilet bowl 330 for use.

[0049] In a preferred embodiment of the present application, the linkage mechanism includes a mechanical interlocking device that connects the hatch 320 and the cover 340, so that when the hatch 320 is opened, the cover 340 is locked in the closed position; when the hatch 320 is closed, the cover 340 is unlocked and can be opened. This mechanical interlocking device can be achieved through mechanical structures such as levers, connecting rods, cams, etc., to ensure the coordinated action of the two components.

[0050] For example, a connecting rod mechanism can be designed, one end of which is connected to the hinge or latch of the hatch 320, and the other end is connected to the locking mechanism of the cover 340. When the hatch 320 is opened, the connecting rod drives the locking mechanism of the cover 340 to lock the cover 340; when the hatch 320 is closed, the connecting rod releases the locking mechanism of the cover 340, so that the cover 340 can be opened. The connecting rod material can be made of corrosion-resistant metals such as stainless steel or aluminum alloy, and bearings or bushings should be provided at the joints to reduce wear and ensure smooth operation. The transmission ratio of the linkage mechanism should consider the reasonable distribution of operating force, and the opening force of the hatch 320 should not exceed 30 Newton, and the opening force of the cover 340 should not exceed 20 Newton, to ensure the convenience of use.

[0051] Another possible linkage mechanism design is to use a steel cable and pulley system. When the hatch 320 is opened, the steel cable is tightened and locks the cover 340. When the hatch 320 is closed, the steel cable is relaxed, releasing the lock of the cover 340. This design is suitable for cases where the hatch 320 is far away from the cover 340. The steel cable should be made of stainless steel, with a diameter of 3-5mm, and coated with polytetrafluoroethylene or other corrosion-resistant materials. The pulley should be made of low-friction materials such as polyamide or polyformaldehyde, with sealed bearings to reduce maintenance requirements.

[0052] In addition, conductive elastic contacts are provided between the door frame and door leaf of the hatch 320 to form a continuous electromagnetic shielding layer in the closed state of the hatch 320. Such conductive elastic contacts can be finger-shaped springs, metal spring contacts, conductive elastomers or metal braids, etc., to ensure electrical connection between the door frame and door leaf and prevent electromagnetic leakage. The material of the conductive elastic contact is preferably beryllium copper alloy or stainless steel, with silver or gold plating on the surface to improve electrical conductivity and corrosion resistance. The compression amount of the contact is preferably 2-5mm, which can adapt to the slight deformation of the door leaf during installation and use, and maintain good contact effect. The contacts should be evenly distributed around the door frame with a spacing of not more than 10cm to ensure the continuity of the shielding effect. At the connection between the door frame and the wall, welding or conductive glue should be used to fix it to avoid electrical discontinuity caused by loosening.

[0053] In another embodiment of the present application, multiple squatting position cabins 300 are provided in the toilet 200, and each squatting position cabin 300 is separated by an electromagnetic shielding partition wall. This design is suitable for multiple squatting position toilets in public places, and each squatting position cabin 300 has independent electromagnetic shielding function and does not interfere with each other. The electromagnetic shielding partition wall can adopt the same shielding structure as the wall of the toilet 200 to ensure the consistency of the overall shielding effect. The thickness of the partition wall is usually 80-120mm, which is sufficient to accommodate the internal shielding material and necessary support structure. The connection between the partition walls should ensure electrical continuity, which can be connected by welding or conductive glue and subjected to appropriate corrosion protection.

[0054] Preferably, the ceiling and floor of the toilet 200 are made of electromagnetic shielding material, which together with the wall forms a complete shielding space. The ceiling can be embedded with metal plate or metal grid and electrically connected with the wall shielding layer; the floor can be covered with metal plate or embedded with metal grid in the floor structure, with a mesh size of 10-30 meshes and a wire diameter of 0.5-1mm to ensure sufficient mechanical strength and shielding effect. The floor metal layer should be reliably connected with the wall shielding layer to form a complete Faraday cage structure. To prevent the floor metal layer from being deformed or damaged by stepping, a non-slip ceramic tile or epoxy resin floor can be covered on it, with a thickness of 10-20mm, which not only protects the shielding layer but also provides a comfortable user experience.

[0055] This all-around shielding design ensures the overall electromagnetic shielding effect of the bathroom 200, preventing electromagnetic leakage in any direction. According to actual needs, the shielding effectiveness can reach 40-80 dB (in the 100 MHz-10 GHz frequency band), meeting the requirements of most secure locations. In special application scenarios, the shielding effectiveness can be further improved by increasing the thickness of the shielding material, adjusting the size of the waveguide, etc.

[0056] During the construction and installation process, special attention should be paid to the electrical connection between the shielding layers to ensure the formation of a complete shielding system. All metal pipes, cables, etc. that pass through the shielding layers should be properly shielded, such as waveguides, filters, etc., to prevent the formation of shielding gaps. After installation, professional shielding effectiveness tests should be conducted to ensure that the design requirements are met.

[0057] In practical applications, the bathroom provided by the present application can be adjusted and optimized according to the needs of different places. For example, in military facilities or intelligence agencies with extremely high requirements for electromagnetic information security, the thickness and density of the shielding material can be increased to enhance the shielding effect; in general secure office locations, the design can be simplified to reduce costs. In addition, different surface materials and treatment methods can be selected according to the usage frequency and cleaning and maintenance requirements to extend the service life of the equipment.

[0058] In summary, the present application systematically addresses the weak links of electromagnetic shielding in bathrooms, particularly the risk of electromagnetic leakage caused by the ventilation opening, drainage opening, and exposure of the toilet bowl during use, achieving all-around electromagnetic shielding protection. At the same time, the design of the present application ensures efficient electromagnetic shielding while not affecting the normal use functions of the bathroom, with good practicality and reliability. The present application is suitable for various locations with strict requirements for information security, providing important infrastructure support for secure work.

Claims

1. A screened space toilet, characterized by The utility model relates to a bathroom with electromagnetic shielding function, comprising: a bathroom with walls in shielding structure to prevent electromagnetic leakage, the bathroom is provided with an entrance, which is connected with the main entrance of the main building; at least one squatting cabin is arranged in the bathroom, the squatting cabin comprises a cabin door, which is an electromagnetic shielding door, the squatting cabin adopts electromagnetic shielding mode except the cabin door, a cabin ventilation opening connected with the ventilation system of the main building is arranged on the squatting cabin, and a waveguide plate is arranged in the cabin ventilation opening; a toilet bowl is arranged in the squatting cabin; a cover is arranged on the toilet bowl to prevent electromagnetic leakage; a linkage mechanism is arranged between the cabin door and the cover, so that only one of the cabin door and the cover can be in an open state at the same time.

2. A screened space toilet according to claim 1, characterized in that The walls of the bathroom are embedded with shielding steel plates to form the shielding structure.

3. A screened space toilet according to claim 1, characterized in that The cabin ventilation opening is provided with multiple layers of waveguide plates, each layer of waveguide plate is made of conductive material, and the ventilation holes between adjacent layers of waveguide plates are arranged in a staggered manner.

4. A screened space toilet according to claim 1, characterized in that A plum-blossom pile-shaped waveguide pipe is arranged in the drain of the toilet bowl, and the plum-blossom pile-shaped waveguide pipe is formed by parallel arrangement of multiple small waveguide pipes made of conductive material.

5. A screened space toilet according to claim 4, characterised in that The diameter of each small waveguide pipe in the plum-blossom pile-shaped waveguide pipe is less than half of the wavelength of the target electromagnetic wave.

6. A screened space toilet according to claim 1, characterized in that The linkage mechanism comprises a mechanical interlocking device connected with the cabin door and the cover, so that when the cabin door is opened, the cover is locked in the closed position; when the cabin door is closed, the cover is unlocked and can be opened.

7. A screened space toilet according to claim 1, characterized in that The periphery of the cover is provided with a conductive elastic sealing element, which is in contact with the periphery of the toilet bowl to form an electromagnetic seal when the cover is in the closed state.

8. A screened space toilet according to claim 1, characterized in that A conductive elastic contact element is arranged between the door frame and the door leaf of the cabin door to form a continuous electromagnetic shielding layer in the closed state of the cabin door.

9. A screened space toilet according to claim 1, characterized in that Multiple squatting cabins are arranged in the bathroom, and the squatting cabins are separated by electromagnetic shielding partition walls.

10. A screened space toilet according to claim 1, characterized in that The ceiling and the floor of the bathroom are made of electromagnetic shielding material to form a complete shielding space with the walls.

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