Portable shielding tent

Abstract

According to the portable shielding tent provided by the utility model, the design concepts of the tent, the Faraday cage, the passive shielding, the double-layer cable shielding and the radiation-proof clothes are integrated, the portable tent with the shielding layer is designed, the double-layer shielding design is adopted, the outer-layer metal wire net shielding induces the current due to the potential difference, and the shielding effect is good. Therefore, magnetic flux for reducing the intensity of a source magnetic field is generated, induced voltage without an outer shielding layer is basically counteracted, multi-point grounding is performed by using a grounding fixing pile, current induced due to potential difference is released, and metal nets are laid inside and outside the tent to form two shielding areas to prevent electric field waves and magnetic field waves by utilizing reflection.

Description

Technical Field

[0001] This utility model discloses a portable shielding device, which relates to the field of electromagnetic shielding technology, and specifically to a portable shielding tent. Background Technology

[0002] Electromagnetic shielding tents are a special type of tent designed to reduce or block external electromagnetic radiation from interfering with internal equipment or people. They are mainly used in special occasions such as military, scientific research, and electronic equipment testing. The performance of electromagnetic shielding tents is affected by a variety of factors, such as the quality of the shielding materials and the design structure. When selecting and using them, an evaluation should be conducted based on actual needs and specific environments, and it should be ensured that they comply with relevant safety standards and regulations.

[0003] However, traditional electromagnetic shielding tents typically use metal coatings for electromagnetic shielding. However, metal coatings can reflect natural light excessively, causing glare, and there are certain requirements for the materials used. Furthermore, long-term contact with some metals can have a negative impact on human health. Considering civilian use, cost, and the above factors, it is necessary to design an electromagnetic shielding tent that does not use metal coatings to shield against electromagnetic interference. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a portable shielding tent that solves the drawbacks of using metal coatings in electromagnetic shielding tents, achieving the goal of shielding electromagnetic interference without the use of metal coatings.

[0005] A portable shielding tent includes a tent body, hydraulic rods, metal zippers, grounding anchors, an outer metal mesh, an inner metal mesh, hydraulic rod clips at the top of the tent body, and a door curtain at the front of the tent body. The tent body is composed of multiple hydraulic rods and is fixed by hydraulic rod clips at the top of the tent body. Metal wire clips are provided at intervals on the hydraulic rods. The outer metal mesh is fastened to the hydraulic rods by metal wire clips, and the top of the outer metal mesh is fixed to the top of the tent body by hydraulic rod clips.

[0006] The inner metal mesh is fixed inside the tent body with a snap ring. The outer metal mesh uses a grounding stake as a grounding electrode at the end closest to the ground. Two diagonally opposite hydraulic rods are connected to the grounding stake with grounding wires. The inner metal mesh is not grounded.

[0007] Preferably, the main body of the tent is composed of 6 hydraulic rods, and a metal mesh is laid on the 6 hydraulic rods to form an outer metal wire mesh.

[0008] Preferably, the outer metal mesh is made of a mesh composed of a material with high electrical conductivity and a diameter of 0.8 mm, and is laid on the surface of the tent body. The inner metal mesh is fixed inside the tent body with a retaining ring, and is also made of a mesh composed of a material with high magnetic permeability and a diameter of 0.7 mm, and is set inside the tent body.

[0009] Preferably, the material with high electrical conductivity is copper wire, and the material with high magnetic permeability is steel wire.

[0010] Preferably, the inner metal wire mesh may have a decorative fabric layer on its surface.

[0011] Preferably, the tent body adopts a hemispherical design with a height of 2.5m as the base of a fully automatic, non-folding tent, and is equipped with a one-way entrance and exit. The entrance and exit of the tent body is equipped with a curtain, which is divided into inner and outer parts, and the curtain is connected to the tent body with a metal zipper.

[0012] Preferably, the metal portion of the metal zipper is connected to the outer metal mesh.

[0013] Preferably, the metal wires of the outer metal mesh and the inner metal mesh are arranged in an alternating vertical arrangement.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The design adopts a double-layer shielding. The outer metal wire mesh shielding induces current due to potential difference, thus generating magnetic flux that reduces the strength of the source magnetic field, thereby basically canceling out the voltage induced when there is no outer shielding layer. Multiple grounding points are used with grounding fixed piles to release the current induced due to potential difference. Metal mesh is laid inside and outside the tent to form two shielding zones and use reflection to prevent electric field waves and magnetic field waves.

[0016] 2. The metal zipper is reliably connected to the outer metal mesh to prevent magnetic fields from entering the shielded space through personnel entrances and exits. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a portable shielding tent of this utility model without the metal wire mesh installed;

[0018] Figure 2 This is a schematic diagram of the interior of the tent according to this utility model;

[0019] Figure 3 This is a top view of the metal wire mesh installation according to this utility model.

[0020] Attached reference numerals: 1-Hydraulic rod buckle, 2-Hydraulic rod, 3-Metal wire buckle, 4-Outer metal wire mesh, 5-Grounding and fixing stake, 6-Fixing ring, 7-Tent body, 8-Door curtain, 9-Inner metal wire mesh, 10-Metal zipper. Detailed Implementation

[0021] The technical solution of this utility model patent will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] Example:

[0023] A portable shielding tent includes a tent body 7, hydraulic rods 2, metal zippers 10, grounding anchors 5, an outer metal mesh 4, an inner metal mesh 9, a hydraulic rod buckle 1 located at the top of the tent body 7, and a door curtain 8 located at the front end of the tent body 7. The tent body 7 is composed of multiple hydraulic rods 2, preferably composed of 6 hydraulic rods 2, and a metal mesh is laid on the 6 hydraulic rods 2 to form the outer metal mesh 4.

[0024] The tent body 7 is fixed by hydraulic rod clips 1 set on the top of the tent body 7. The hydraulic rod 2 is provided with metal wire clips 3 at intervals. The outer metal wire mesh 4 is fastened to the hydraulic rod 2 by the metal wire clips 3. The top of the outer metal wire mesh 4 is fixed to the top of the tent body 7 by the hydraulic rod clips 1.

[0025] The inner metal mesh 9 is fixed inside the tent body 7 with a snap ring. Due to the potential difference, the inner metal mesh 9 induces a current, thus generating a magnetic flux that reduces the strength of the source magnetic field, thereby basically canceling out the voltage induced when the inner metal mesh 9 is not present. The outer metal mesh 4 uses a grounding fixing stake 5 as a grounding electrode at the end closest to the ground. Two diagonally opposite grounding wires of the hydraulic rod 2 are connected to the grounding fixing stake 5. The outer shielding layer is grounded at two points, using the tent's fixing stake as a grounding electrode. The length of the grounding fixing stake 5 is not less than 0.5m.

[0026] The outer metal mesh 4 is made of a 5mm*5mm grid formed by a high conductivity material with a diameter of 0.8mm and laid on the surface of the tent body 7. The inner metal mesh 9 is fixed inside the tent body 7 with a retaining ring. It is also made of a 5mm*5mm grid formed by a high magnetic permeability material with a diameter of 0.7mm and set inside the tent body 7. When the tent is fully opened, there is a gap of 8cm-10cm between the outer metal mesh 4 and the inner metal mesh 9. The inner metal mesh 9 is not grounded and uses a high magnetic permeability material to protect against low-frequency electromagnetic waves.

[0027] Electromagnetic shielding attenuates electromagnetic waves primarily through reflection and absorption. When an electromagnetic wave reaches the surface of the shield, it is reflected due to the impedance discontinuity at the air-metal interface. This reflection does not require the shielding material to have a certain thickness, only the discontinuity at the interface. The energy reflected from the surface and entering the shield is absorbed by the material as it propagates forward within the shield. Any remaining energy that has not attenuated within the shield reaches the other surface of the material and encounters the metal-air impedance discontinuity at the interface, resulting in a second reflection that returns to the shield. This reflection may occur multiple times at the interface between the two metals.

[0028] Materials with high electrical conductivity are preferably copper wires, while materials with high magnetic permeability are preferably steel wires or nanocrystalline soft magnetic materials.

[0029] The inner metal mesh 9 can be covered with a decorative fabric to enhance its aesthetics during use.

[0030] The tent body 7 adopts a hemispherical design and is based on a fully automatic, non-folding tent with a height of 2.5m. It is equipped with a one-way entrance and exit. The entrance and exit of the tent body 7 is equipped with a curtain 8, which is divided into inner and outer parts. The curtain 8 is connected to the tent body 7 by a metal zipper 10. The metal part of the metal zipper 10 is connected to the outer metal wire mesh 4 to prevent magnetic fields from entering the shielded space through the personnel entrance and exit.

[0031] The metal wires of the outer metal mesh 4 and the inner metal mesh 9 are arranged in an alternating pattern, which facilitates maintenance after stress fracture due to long-term use.

[0032] Theoretical shielding effect: 1 Gauss = 80 A / M; Assuming the outer shielding layer material is copper, and the initial positive lightning strike intensity is 100kA, striking a tree 10m away, using the shielding formula in 6.3.2 of 50057-2010, the magnetic field strength generated without shielding is calculated to be 1592.4 A / M. Then, the magnetic field strength in the LPZ1 region is calculated to be approximately 1.59 A / M. A magnetic field pulse exceeding 0.07 Gauss can cause calculation failure; a magnetic field pulse exceeding 2.4 Gauss can cause permanent damage to the integrated circuit. The calculated values, after conversion to Gauss, are less than 0.07, theoretically indicating that the electronic equipment is in a safe environment.

[0033] This utility model provides a portable shielding tent, integrating the design concepts of a tent, Faraday cage, passive shielding, double-layer cable shielding, and anti-radiation clothing to create a portable tent with a shielding layer. Considering portability and ease of storage for daily use, a hydraulic automatic tent is used as the base material. Metal wire clips 3 are added to the hydraulic rod to secure the inner and outer metal wires. The outer metal wire mesh 4 is connected to the grounding fixing stake 5. The metal part of the metal zipper 10 is connected to the outer metal wire mesh 4. In use, the hydraulic rod clips 1 are opened, and the grounding and fixing stake 5 are inserted into the ground.

[0034] Finally, it should be noted that the above embodiments are merely representative examples of this utility model patent. Obviously, this utility model patent is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model patent.

Claims

1. A portable shielding tent, comprising a tent body (7), hydraulic rods (2), a metal zipper (10), a grounding anchor (5), an outer metal mesh (4), an inner metal mesh (9), a hydraulic rod buckle (1) disposed on the top of the tent body (7), and a door curtain (8) disposed on the front end of the tent body (7). The tent body (7) is composed of multiple hydraulic rods (2), and the tent body (7) is fixed by the hydraulic rod buckle (1) disposed on the top of the tent body (7). The tent body (7) is characterized in that... The hydraulic rod (2) is provided with metal wire clips (3) at intervals. The outer metal wire mesh (4) is fastened to the hydraulic rod (2) with metal wire clips (3). The top of the outer metal wire mesh (4) is fixed to the top of the tent body (7) with hydraulic rod clips (1). The inner metal mesh (9) is fixed inside the tent body (7) with a snap ring. The outer metal mesh (4) is used as a grounding electrode by a grounding fixing stake (5) at the end closest to the ground. Two diagonal grounding wires of the hydraulic rod (2) are connected to the grounding fixing stake (5). The inner metal mesh (9) is not grounded.

2. The portable shielding tent according to claim 1, characterized in that, The main body of the tent (7) is composed of 6 hydraulic rods (2), and a metal mesh is laid on the 6 hydraulic rods (2) to form an outer metal wire mesh (4).

3. The portable shielding tent according to claim 1, characterized in that, The outer metal wire mesh (4) is made of a mesh composed of a material with high electrical conductivity and a diameter of 0.8 mm and laid on the surface of the tent body (7). The inner metal wire mesh (9) is fixed inside the tent body (7) with a snap ring and is also made of a mesh composed of a material with high magnetic permeability and a diameter of 0.7 mm and laid inside the tent body (7).

4. The portable shielding tent according to claim 3, characterized in that, The material with high electrical conductivity is copper wire, and the material with high magnetic permeability is steel wire.

5. The portable shielding tent according to claim 1, characterized in that, The inner metal wire mesh (9) may have a decorative cloth layer on its surface.

6. The portable shielding tent according to claim 1, characterized in that, The tent body (7) is based on a fully automatic, non-folding tent with a hemispherical design and a height of 2.5m. It has a one-way entrance and exit. The entrance and exit of the tent body (7) is equipped with a curtain (8). The curtain (8) is divided into inner and outer sections. The curtain (8) is connected to the tent body (7) by a metal zipper (10).

7. The portable shielding tent according to claim 6, characterized in that, The metal part of the metal zipper (10) is connected to the outer metal wire mesh (4).

8. The portable shielding tent according to claim 1, characterized in that, The metal wires of the outer metal wire mesh (4) and the inner metal wire mesh (9) are arranged in an alternating pattern.

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