Shielded room

Abstract

The utility model relates to a shielding room. The shielding room comprises a main body wall, a shielding layer, a keel layer and a filler layer, the shielding layer and the main body wall are arranged at intervals; the keel layer is connected with the main body wall and the shielding layer, so that a cavity is formed between the main body wall and the shielding layer; the packing layer is arranged in the cavity; wherein pouring holes are formed in the shielding layer and used for pouring slurry into the cavity, so that the filler layer is formed. Compared with the prior art, the main body wall and the shielding layer are fixedly connected through the keel layer, the cavity is formed between the main body wall and the shielding layer, and the packing layer which is dense enough is formed in the mode that the pouring holes in the shielding layer are poured into the cavity, so that the packing layer can reduce leakage of sound waves and electromagnetic waves; and moreover, the connection between the main body wall and the shielding layer is tighter, thereby effectively avoiding possible leakage at the joint, and being beneficial to improving the shielding performance of the shielding room.

Description

Technical Field

[0001] This utility model relates to the field of shielded room technology, and in particular to a shielded room. Background Technology

[0002] A shielded room is a specially designed enclosed space to isolate internal and external electromagnetic environments. It prevents external electromagnetic interference while also preventing internal electromagnetic waves from leaking out. In modern technological development, shielded rooms play a vital role in many fields, such as electronic equipment testing and acoustic research.

[0003] In some critical fields, due to the needs of scientific research and safety protection, the performance requirements for shielded rooms are extremely high. For example, an environment with extremely low background noise and the ability to attenuate electromagnetic waves at specific frequencies are required. However, existing shielded room technologies have some shortcomings in the connection between the shielding layer and the main structure. Loose and unstable connections between the shielding layer and the main structure can cause vibration of the shielding steel plate, leading to problems such as unsatisfactory shielding effects and noise leakage.

[0004] Therefore, it is necessary to develop a new type of shielded room to improve some of the problems existing in the related technologies. Utility Model Content

[0005] The purpose of this invention is to provide a shielded room that can improve the tightness of the connection between the shielding layer and the main structure, reduce the leakage of sound waves and electromagnetic waves, and improve the shielding performance of the shielded room.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] This utility model provides a shielded room, comprising: a main wall, a shielding layer, a keel layer, and a filler layer; the shielding layer is spaced apart from the main wall; the keel layer connects the main wall and the shielding layer, forming a cavity between the main wall and the shielding layer; the filler layer is disposed within the cavity; wherein, the shielding layer is provided with casting holes for casting slurry into the cavity to form the filler layer.

[0008] Optionally, the shielding layer is also provided with vent holes.

[0009] Optionally, the vent and the casting hole are located on the two sides of the shielding layer, respectively.

[0010] Optionally, the shielding layer is rectangular in shape, and the vent hole and the casting hole are located at opposite corners of the shielding layer.

[0011] Optionally, the slurry of the filler layer includes cement, quartz sand, gypsum, inorganic powder and expansion agent, in a weight ratio of 1:2.5-3.5:0.05:0.1-0.2:0.01.

[0012] This utility model provides a construction method for a shielded room, including the following steps:

[0013] S01: Construction creates a cavity between the main wall and the shielding layer;

[0014] S02: Pour grout into the cavity through the casting holes on the shielding layer;

[0015] S03: Solidify the slurry to form a filler layer.

[0016] Optionally, in step S02, the process of pouring grout into the cavity through the casting holes on the shielding layer further includes the following step:

[0017] S21: During pouring, air is vented through the vent holes on the shielding layer;

[0018] S22: Seal the vent hole when the slurry overflows from the vent hole.

[0019] Optionally, the grouting pressure for the cavity filling grout is 0.2-0.4 MPa.

[0020] Optionally, after sealing the vent hole, the step further includes: continuing to inject the slurry for 10-20 seconds.

[0021] Compared with the prior art, the shielded room provided by this utility model has the following technical effects:

[0022] 1. This utility model uses a keel layer to fix the main wall and the shielding layer together and form a cavity between them. A sufficiently dense filler layer is formed by pouring into the cavity through the casting holes on the shielding layer. Not only can the filler layer itself reduce the leakage of sound waves and electromagnetic waves, but it also makes the connection between the main wall and the shielding layer tighter, effectively avoiding possible leakage at the connection and improving the shielding performance of the shielding room.

[0023] 2. By simultaneously setting pouring holes and venting holes on the shielding layer, this utility model allows the cavity to expel gas through the venting holes during the pouring process, making the slurry distribution more uniform and dense, which is beneficial to improving the anti-leakage effect and tightness of the filler layer.

[0024] 3. This utility model sets a closed structure at the vent hole on the shielding layer, so that the vent hole is sealed after the grout is poured to a certain extent. Under the condition that the grout will not leak through the vent hole, the grout continues to be injected at a certain grouting pressure, which is conducive to more uniform and dense distribution of grout and avoids the formation of pores in the filler layer.

[0025] 4. This utility model uses cement, quartz sand, gypsum, inorganic powder and expansion agent in a weight ratio of 1:2.5-3.5:0.05:0.1-0.2:0.01 to form a slurry, which gives the slurry good fluidity and filling performance, and is conducive to forming a more uniform and dense filler layer.

[0026] 5. This utility model provides a thin steel plate shielding layer with high pull-out resistance as a constraint part of the grout on a relatively thin floor, so that the cavity grouting is dense and does not cause the thin steel plate to bulge. Its structure is simple and easy to construct. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the shielding chamber in an embodiment of the present invention.

[0028] Figure label:

[0029] 1. Keel layer; 101. First keel; 102. Second keel; 103. Third keel; 2. Shielding layer; 3. Casting hole; 4. Vent hole; 5. Cavity. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0031] This utility model embodiment provides a shielded room, as shown in the reference. Figure 1 The shielded room includes: a main wall, a shielding layer 2, a keel layer 1, and a filler layer; the shielding layer 2 is spaced apart from the main wall; the keel layer 1 connects the main wall and the shielding layer 2, forming a cavity 5 between the main wall and the shielding layer 2; the filler layer is disposed in the cavity 5; wherein, the shielding layer 2 is provided with a casting hole 3 for casting slurry into the cavity 5 to form the filler layer.

[0032] In some specific embodiments, the material of the shielding layer 2 can be a metallic electromagnetic shielding material, a polymer composite electromagnetic shielding material, or a conductive electromagnetic shielding material, and this utility model does not limit this.

[0033] In some specific embodiments, the keel layer 1 includes a plurality of keels, which are connected in a cross-shaped combination and form a cavity 5 with a cross-sectional shape of parallelogram, other polygons or circles through the main walls on both sides and the shielding layer 2.

[0034] In some specific embodiments, the parallelogram has an interior angle that is a right angle, thus forming the cavity 5 with a rectangular cross-sectional shape.

[0035] In some specific embodiments, the keel includes a first keel 101, a second keel 102, a third keel 103, and a fourth keel. The first keel 101 and the second keel 102 are arranged parallel to each other at intervals, and the third keel 103 and the fourth keel are arranged in a direction perpendicular to the first keel 101 and the second keel 102, so that the first keel 101, the second keel 102, and the third keel 103 form the cavity 5 with a rectangular or square cross-section as the fourth keel.

[0036] In other specific embodiments, reference is made to... Figure 1 The keel includes a first keel 101, a second keel 102, a third keel 103, and a fourth keel. The first keel 101 and the second keel 102 are arranged parallel to each other at intervals. The third keel 103 and the fourth keel are arranged in a direction inclined to the first keel 101 and the second keel 102, so that the first keel 101, the second keel 102, the third keel 103, and the fourth keel form the cavity 5 with a parallelogram cross-section.

[0037] In other specific embodiments, reference is made to... Figure 1 At least three of the keels are arranged along a first direction, and at least two of the keels are arranged along a second direction. There is a certain angle between the first direction and the second direction, so that a number of cavities 5 with a cross-sectional shape of parallelogram are formed between the keels.

[0038] In some specific embodiments, reference is made to Figure 1 The shielding steel plate has the same shape as the cross-sectional shape of the cavity 5. The shielding steel plate is connected to the side of the keel away from the main wall to cover the cavity 5.

[0039] In other specific embodiments, reference is made to... Figure 1 The shielding steel plate is connected to the side of the keel away from the main wall to cover the multiple cavities 5.

[0040] In some specific embodiments, the keel is arranged parallel to the main wall, so that the keel layer 1 is parallel to the main wall as a whole.

[0041] In some specific embodiments, the main wall can be the bottom wall, top wall, or side wall of the shielded room's main structure.

[0042] In some specific embodiments, the keel is arranged in a plane parallel to the length and width directions of the main wall, such that the keel layer 1 is arranged on the top wall or the bottom wall of the shielding room main structure.

[0043] In some other specific embodiments, the keel is arranged in a plane parallel to the length and height of the main wall, or in a plane parallel to the width and height, so that the keel layer 1 is arranged on the four side walls of the main structure of the shielding room.

[0044] In some specific embodiments, the keel is fixed by setting shear wall embedded parts on the main wall.

[0045] In some specific embodiments, the shear wall embedded part is welded to the keel.

[0046] In some specific embodiments, the keel is welded to the shielding layer 2.

[0047] In some embodiments of this utility model, the shielding layer 2 is a relatively thin steel plate with a thickness of 0.5-3mm.

[0048] Specifically, the thickness of the steel plate can be 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5 or 3.

[0049] In some embodiments of this utility model, reference is made to... Figure 1 The shielding layer 2 is also provided with an exhaust hole 4.

[0050] In some embodiments of this utility model, reference is made to... Figure 1 The vent 4 and the casting hole 3 are located on the two sides of the shielding layer 2, respectively.

[0051] In some specific embodiments, the shielding layer 2 is a rectangular plate-shaped part, and the vent 4 and the casting hole 3 are respectively located on the two sides of the shielding layer 2 in the length direction or on the two sides of the shielding layer 2 in the width direction.

[0052] In some specific embodiments, reference is made to Figure 1 The shielding layer 2 can be a parallelogram plate-shaped part, and the vent 4 and the casting hole 3 are respectively located on the two sides of the bottom extension direction or the two sides of the height extension direction of the shielding layer 2.

[0053] In some specific embodiments, the shielding layer 2 can be a rectangular plate-shaped part, and the vent hole 4 and the casting hole 3 are respectively located on the two sides of the shielding layer 2 in the long extension direction or on the two sides of the shielding layer 2 in the wide extension direction.

[0054] In some embodiments of this utility model, reference is made to... Figure 1 The shielding layer 2 is in the shape of a parallelogram, and the vent 4 and the casting hole 3 are located at opposite corners of the shielding layer 2.

[0055] In some embodiments of this utility model, reference is made to... Figure 1 The shielding layer 2 is rectangular in shape, and the vent 4 and the casting hole 3 are located at opposite corners of the shielding layer 2.

[0056] In some specific embodiments, the diagonal of the shielding layer 2 of the parallelogram can be a position where two acute angles are opposite each other.

[0057] In other specific embodiments, reference is made to... Figure 1 The diagonal points on the parallelogram-shaped shielding layer 2 can be positions where two obtuse angles are opposite each other.

[0058] In some other embodiments, the diagonal points on the rectangular shielding layer 2 can be two right-angled positions.

[0059] In some specific embodiments, the diameter of the casting hole 3 is 30-70mm.

[0060] In some specific embodiments, the diameter of the exhaust port 4 is 60-100mm.

[0061] Specifically, the diameter of the casting hole 3 can be 30, 40, 50, 60 or 70 mm.

[0062] Specifically, the diameter of the exhaust port 4 can be 60, 70, 80, 90 or 100 mm.

[0063] In some embodiments of this utility model, the shielding layer 2 includes a closed structure, which is disposed at the exhaust hole 4 and is used to block the communication between the cavity 5 and the external space at the exhaust hole 4.

[0064] In some specific embodiments, the sealing structure can be a plugging structure.

[0065] In some specific embodiments, the plugging material can be an organic plugging material or an inorganic plugging material.

[0066] In some specific embodiments, the plugging material is mixed with epoxy resin polymers to enhance its sealing performance.

[0067] In other specific embodiments, the plugging material can be a metal material, which is welded to the wall of the vent hole 4.

[0068] In some specific embodiments, the plug can be of a variable diameter shape to facilitate embedding into the vent hole 4.

[0069] In some specific embodiments, an additional shielding structure is provided at the closed structure to achieve the same shielding effect at all locations on the shielding layer 2.

[0070] In some specific embodiments, the shielding structure may be a plate-shaped part of the same thickness as the shielding layer 2, to cover the vent hole 4 or the casting hole 3.

[0071] In some specific embodiments, the sealing structure can be a combination of components for sealing, such as bolts and screw holes, to achieve high operational efficiency and a tight sealing effect.

[0072] In some specific embodiments, another of the aforementioned closed structures is provided at the casting hole 3.

[0073] In some embodiments of this utility model, the slurry of the filler layer includes cement, quartz sand, gypsum, inorganic powder and expansion agent, with a weight ratio of 1:2.5-3.5:0.05:0.1-0.2:0.01.

[0074] Specifically, the weight ratio of the cement to the quartz sand can be 1:2.5, 1:3, or 1:3.5.

[0075] Specifically, the weight ratio of the cement to the inorganic powder can be 1:0.1, 1:0.15, or 1.

[0076] In some embodiments of the Buddha statue, the grout is a non-shrink grout with a water-to-material ratio of 0.1-0.15 to ensure the fluidity and strength of the grout.

[0077] Specifically, the water-to-material ratio can be 0.1, 0.12, 0.13, 0.14, or 0.15.

[0078] This utility model embodiment provides a construction method for a shielded room, including the following steps:

[0079] S01: Construction creates a cavity 5 between the main wall and the shielding layer 2;

[0080] S02: Pour grout into the cavity 5 through the casting hole 3 on the shielding layer 2;

[0081] S03: Solidify the slurry to form a filler layer.

[0082] In some specific embodiments, before the cavity 5 between the main wall and the shielding layer 2 is formed in step S01, the process further includes: dust removal treatment of the inner wall of the cavity 5.

[0083] Specifically, the dust removal process may include other technologies such as wet dust collection and purging filtration, and this utility model does not limit it.

[0084] In some specific embodiments, before the cavity 5 between the main wall and the shielding layer 2 is formed in step S01, the inner wall of the cavity 5 is dried.

[0085] Specifically, the drying process includes hot air drying of the cavity 5.

[0086] Specifically, the drying process includes drying the keel before construction and fixing.

[0087] In some embodiments of this utility model, the step S02, in which grout is poured into the cavity 5 through the casting hole 3 on the shielding layer 2, further includes the following step:

[0088] S21: During pouring, air is vented through the vent holes 4 on the shielding layer 2;

[0089] S22: Block the vent hole 4 when the slurry overflows from the vent hole 4.

[0090] In some embodiments of this utility model, the grouting pressure for pouring grout into the cavity 5 is 0.2-0.4 MPa.

[0091] Specifically, the grouting pressure can be 0.2, 0.3, or 0.4 MPa.

[0092] In some embodiments of this utility model, after sealing the vent hole 4, the step further includes: continuing to inject the slurry for 10-20 seconds.

[0093] Specifically, the time for continuing to inject the slurry can be 10, 12, 14, 16, 18 or 20 seconds.

[0094] In some specific embodiments, after sealing the vent hole 4, the slurry is continued to be injected, so that the pressure of the slurry reaches 0.6-1 MPa.

[0095] Specifically, after sealing the vent hole 4, the slurry is continued to be injected, so that the pressure of the slurry reaches 0.6, 0.7, 0.8, 0.9 or 1 MPa.

[0096] It should be noted that the steps and principles of the construction method of the shielding layer 2 provided in this utility model embodiment correspond one-to-one with the structure and principle of the shielding room. Those skilled in the art can understand the technical solution of the construction method of the shielding layer 2 by combining the technical solution of the shielding room with the prior art, so it will not be described again here.

[0097] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A shielded room, characterized in that, include: Main walls; A shielding layer (2) is provided at a distance from the main wall; The keel layer (1) connects the main wall and the shielding layer (2), forming a cavity (5) between the main wall and the shielding layer (2); A packing layer is disposed within the cavity (5); The shielding layer (2) is provided with a casting hole (3) for casting slurry into the cavity (5) to form the filler layer.

2. The shielded room according to claim 1, characterized in that, The shielding layer (2) is also provided with an exhaust hole (4).

3. The shielded room according to claim 2, characterized in that, The vent (4) and the casting hole (3) are located on the two sides of the shielding layer (2).

4. The shielded room according to claim 2, characterized in that, The shielding layer (2) is rectangular in shape, and the vent (4) and the casting hole (3) are located at opposite corners of the shielding layer (2).

5. The shielded room according to claim 2, characterized in that, The shielding layer (2) includes a closed structure, which is disposed at the vent (4) to block the connection between the cavity (5) and the external space at the vent (4).

6. The shielded room according to claim 1, characterized in that, The keel layer (1) includes a plurality of keels, which are cross-combined between the main wall and the shielding layer (2) to form a plurality of cavities (5).

7. The shielded room according to claim 6, characterized in that, The keel includes a first keel (101), a second keel (102), and a third keel (103). The first keel (101) and the second keel (102) are arranged parallel to each other at intervals, and the third keel (103) is arranged in a direction perpendicular to the first keel (101) and the second keel (102).

8. The shielded room according to claim 6, characterized in that, The keel includes a first keel (101), a second keel (102), and a third keel (103). The first keel (101) and the second keel (102) are arranged parallel to each other at intervals, and the third keel (103) is arranged in a direction inclined to the first keel (101) and the second keel (102).

9. The shielded room according to claim 1, characterized in that, The shielding layer (2) is a steel plate with a thickness of 0.5-3mm.

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