High-strength light-weight all-steel sound insulation shielding door

By using high-strength low-alloy steel, a honeycomb structure reinforcement layer, and a polyurethane foam sound insulation layer in the shielding door, the shortcomings of stainless steel shielding doors in terms of noise isolation and weight have been solved, achieving high strength, lightweight design, and excellent electromagnetic shielding effect.

CN224134526UActive Publication Date: 2026-04-17BEIJING TUOER SOUNDPROOFING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING TUOER SOUNDPROOFING TECH CO LTD
Filing Date
2025-04-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing stainless steel shielding doors perform poorly in noise isolation and are heavy, affecting ease of use.

Method used

The front and rear steel plates are made of high-strength low-alloy steel, combined with a honeycomb structure reinforcement layer and a polyurethane foam sound insulation layer to enhance structural strength and sound insulation performance. Elastic conductive rubber sealing strips are installed at the contact edges of the door frame and door panel to improve sealing and electromagnetic shielding effects.

Benefits of technology

It achieves efficient isolation of airborne noise, reduces the weight of the door, improves the ease of opening and closing the door, and enhances electromagnetic shielding and sealing performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224134526U_ABST
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Abstract

The utility model relates to the technical field of shielding doors, in particular to a high-strength light-weight all-steel sound insulation shielding door which comprises a door frame, a door plate is hinged to the door frame through hinges and comprises a front steel plate and a rear steel plate, the front steel plate is located right in front of the rear steel plate, reinforcing layers are arranged on the opposite side faces of the front steel plate and the rear steel plate, and a sound insulation layer is arranged between the two reinforcing layers. A frame-shaped steel plate is arranged between the front steel plate and the rear steel plate, and the sound insulation layer and the two reinforcing layers are all located in the frame-shaped steel plate. According to the high-strength light-weight all-steel sound insulation shielding door, by arranging the sound insulation layer, the shielding door is excellent in the aspect of effectively isolating airborne noise, the noise control capacity is remarkably improved, and the defect in the aspect of noise isolation in the prior art is overcome; the structural strength and rigidity of the door are ensured, and meanwhile the overall weight of the door is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of shielding door technology, specifically a high-strength, lightweight, all-steel soundproof shielding door. Background Technology

[0002] Shielded doors are doors specifically designed to isolate electromagnetic radiation and other external interference. They are commonly used in environments requiring protection from electromagnetic or radio frequency interference, such as laboratories, data centers, medical facilities, and military installations. By employing conductive materials and a special sealing structure, shielded doors effectively block the propagation of electromagnetic waves, ensuring the stability and safety of the internal environment. The construction of a shielded door typically includes a metal frame, door panels, and internal conductive materials. These materials work together to form an effective shielding barrier, preventing external interference from affecting the normal operation of internal equipment.

[0003] Patent CN208534363U discloses a stainless steel shielding door, including a stainless steel door panel, a stainless steel outer frame, and a stainless steel inner frame nested within the stainless steel outer frame. One side of the stainless steel door panel is rotatably connected to the stainless steel outer frame via a pivot assembly. When the stainless steel door panel is closed, the stainless steel inner frame contacts the side wall of the stainless steel door panel. Conductive cotton is provided on the four side walls of the stainless steel inner frame that are in contact with the stainless steel door panel, and the four conductive cottons are connected end to end. This utility model has a simple structure, and by providing conductive cotton on the stainless steel inner frame, it can significantly improve the sealing performance and radiation protection capability of the shielding door.

[0004] The aforementioned existing technology significantly improves the sealing and radiation protection capabilities of the shielded door by incorporating conductive cotton into the stainless steel inner frame. However, this stainless steel shielded door primarily focuses on electromagnetic shielding and cannot effectively isolate airborne noise. This results in unsatisfactory noise control performance. Furthermore, the overall weight of the stainless steel door panel is relatively large, increasing the difficulty of opening and closing the door and making it unsuitable for environments with frequent use. Therefore, to address these shortcomings, we propose a high-strength, lightweight, all-steel soundproof shielded door. This design aims to improve sound insulation while reducing the door's weight through optimized material and structural design, thus balancing shielding, sound insulation, and ease of use. Utility Model Content

[0005] The purpose of this invention is to provide a high-strength, lightweight, all-steel soundproof and shielded door to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] High-strength, lightweight, all-steel soundproof and shielded door, including, combined with Figure 1 and Figure 2As shown, the door includes a door frame, which serves as the supporting structure for the entire door and provides a stable installation base. The door frame is hinged to a door panel via hinges. The hinges are used to connect the door frame and the door panel, allowing the door panel to rotate around the hinges for easy opening and closing. The door panel is the main part of the shielded door and is responsible for providing overall strength and sound insulation performance.

[0008] Combination Figure 3 and Figure 4 As shown, the door panel includes a front steel plate and a rear steel plate. The front steel plate is located directly in front of the rear steel plate and provides structural strength and protection. The rear steel plate and the front steel plate together form the protective layer of the door, enhancing the overall strength of the shielded door. Reinforcing layers are provided on opposite sides of the front and rear steel plates to enhance the strength and rigidity of the door panel and prevent deformation. A sound insulation layer is provided between the two reinforcing layers to effectively isolate airborne noise and improve the door's sound insulation performance. A frame-shaped steel plate is provided between the front and rear steel plates. The front and rear sides of the frame-shaped steel plate are welded and fixed to the front and rear steel plates, respectively. The sound insulation layer and the two reinforcing layers are all located within the frame-shaped steel plate, which provides additional structural support to ensure overall stability.

[0009] Preferred, such as Figure 2 As shown, the edges where the door frame and door panel contact are provided with elastic conductive rubber sealing strips to enhance sealing performance and electromagnetic shielding effect. The elastic conductive rubber sealing strips are used to enhance the sealing performance of the door, prevent electromagnetic wave leakage, and improve the electromagnetic shielding effect.

[0010] Preferred, such as Figure 4 As shown, the thickness of the front and rear steel plates is 0.8-1.0mm, which ensures sufficient strength and rigidity. Both the front and rear steel plates are made of high-strength low-alloy steel, which ensures the durability and impact resistance of the door, and is also high in strength and light in weight.

[0011] Preferred, such as Figure 3 As shown, the reinforcing layer is a honeycomb structure panel. The honeycomb structure design provides strength while reducing the overall weight. The thickness of the reinforcing layer is 5-10mm, which can effectively enhance the strength of the door. The reinforcing layer is made of aluminum alloy material, which has good strength and lightweight characteristics.

[0012] The sound insulation layer is 15-25mm thick, which ensures excellent sound insulation. The sound insulation layer is made of polyurethane foam material, which is selected because of its excellent acoustic properties.

[0013] The frame steel plate has a wall thickness of 0.8-1.0mm. This wall thickness design ensures the strength and durability of the frame steel plate. The frame steel plate is made of high-strength low-alloy steel, ensuring that the frame steel plate can effectively support the overall structure of the door.

[0014] Preferably, the outer surfaces of the front steel plate, rear steel plate, and frame steel plate are all provided with an anti-corrosion coating. The anti-corrosion coating is used to improve the durability of the door and prevent corrosion and oxidation. The anti-corrosion coating is an epoxy resin coating. The epoxy resin coating is sprayed onto the outer surfaces of the front steel plate, rear steel plate, and frame steel plate using an electrostatic spraying process. The epoxy resin coating is selected because of its excellent adhesion and weather resistance to enhance aesthetics and protection.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This high-strength, lightweight, all-steel soundproof shielding door uses high-strength, low-alloy steel for the front and rear steel plates, combined with a reasonable thickness design, to ensure the structural strength and rigidity of the door while reducing its overall weight, making it easier to open and close and suitable for environments with frequent use.

[0017] 2. This high-strength, lightweight, all-steel soundproof and shielded door uses a honeycomb structure reinforcement layer, which not only enhances the strength and rigidity of the door panel, but also effectively reduces the weight of the door.

[0018] 3. This high-strength, lightweight, all-steel soundproof shielding door, through the installation of a sound insulation layer, performs excellently in effectively isolating airborne noise, significantly improving noise control capabilities and overcoming the shortcomings of existing technologies in noise isolation.

[0019] 4. This high-strength, lightweight, all-steel soundproof shielding door features elastic conductive rubber sealing strips at the edges where the door frame and door panel meet. This enhances the door's sealing performance and electromagnetic shielding effect, effectively preventing electromagnetic wave leakage, ensuring a stable internal environment, and improving the door's radiation protection capabilities. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model in use.

[0022] Figure 3 This is a cross-sectional structural diagram of the door panel in this utility model;

[0023] Figure 4 This is an exploded view of the door panel in this utility model;

[0024] In the diagram: 1. Door frame; 2. Hinge; 3. Door panel; 30. Front steel plate; 31. Rear steel plate; 32. Frame-shaped steel plate; 33. Reinforcing layer; 34. Sound insulation layer; 4. Elastic conductive rubber sealing strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figures 1-4 This utility model provides a technical solution:

[0028] High-strength, lightweight, all-steel soundproof shielding door, combined with Figure 1 and Figure 2 As shown, the door frame 1 serves as the supporting structure for the entire door, providing a stable installation base. The door frame 1 is hinged to the door panel 3 via a hinge 2. The hinge 2 connects the door frame 1 and the door panel 3, allowing the door panel 3 to rotate around the hinge 2 for easy opening and closing. The door panel 3 is the main part of the shielded door, responsible for providing overall strength and sound insulation performance.

[0029] Combination Figure 3 and Figure 4As shown, the door panel 3 includes a front steel plate 30 and a rear steel plate 31. The front steel plate 30 is located directly in front of the rear steel plate 31. The front steel plate 30 provides structural strength and protection. The rear steel plate 31 and the front steel plate 30 together form the protective layer of the door, enhancing the overall strength of the shielded door. The opposite sides of the front steel plate 30 and the rear steel plate 31 are provided with reinforcing layers 33. The reinforcing layers 33 are used to enhance the strength and rigidity of the door panel 3 and prevent deformation. A sound insulation layer 34 is provided between the two reinforcing layers 33. The sound insulation layer 34 is used to effectively isolate airborne noise and improve the sound insulation performance of the door. A frame-shaped steel plate 32 is provided between the front steel plate 30 and the rear steel plate 31. The front and rear sides of the frame-shaped steel plate 32 are welded and fixed to the front steel plate 30 and the rear steel plate 31, respectively. The sound insulation layer 34 and the two reinforcing layers 33 are all located inside the frame-shaped steel plate 32. The frame-shaped steel plate 32 provides additional structural support to ensure the overall stability.

[0030] In this embodiment, as Figure 2 As shown, an elastic conductive rubber sealing strip 4 is provided at the edge where the door frame 1 and the door panel 3 contact to enhance the sealing performance and electromagnetic shielding effect. The elastic conductive rubber sealing strip 4 is used to enhance the sealing performance of the door, prevent electromagnetic wave leakage, and improve the electromagnetic shielding effect.

[0031] Specifically, such as Figure 4 As shown, the thickness of the front steel plate 30 and the rear steel plate 31 is 0.8-1.0mm. This thickness ensures sufficient strength and rigidity. Both the front steel plate 30 and the rear steel plate 31 are made of high-strength low-alloy steel. This material ensures the durability and impact resistance of the door, and is also strong and lightweight.

[0032] Furthermore, such as Figure 3 As shown, the reinforcing layer 33 is a honeycomb structure panel. The honeycomb structure design provides strength while reducing the overall weight. The thickness of the reinforcing layer 33 is 5-10mm, which can effectively enhance the strength of the door. The reinforcing layer 33 is made of aluminum alloy material, which has good strength and lightweight characteristics.

[0033] The sound insulation layer 34 has a thickness of 15-25mm, which ensures excellent sound insulation. The sound insulation layer 34 is made of polyurethane foam material, which is selected because of its excellent acoustic properties.

[0034] The frame steel plate 32 has a wall thickness of 0.8-1.0mm. This wall thickness design ensures the strength and durability of the frame steel plate 32. The frame steel plate 32 is made of high-strength low-alloy steel, ensuring that the frame steel plate 32 can effectively support the overall structure of the door.

[0035] Furthermore, the outer surfaces of the front steel plate 30, the rear steel plate 31, and the frame steel plate 32 are all provided with an anti-corrosion coating. The anti-corrosion coating is used to improve the durability of the door and prevent corrosion and oxidation. The anti-corrosion coating is an epoxy resin coating. The epoxy resin coating is sprayed onto the outer surfaces of the front steel plate 30, the rear steel plate 31, and the frame steel plate 32 using an electrostatic spraying process. The epoxy resin coating is chosen because of its excellent adhesion and weather resistance to enhance aesthetics and protection.

[0036] In this embodiment, the high-strength, lightweight, all-steel soundproof door is used by fixing the door frame 1 inside the doorway of the wall to ensure a stable installation. Then, the door panel 3 is connected to the door frame 1 via hinge 2, allowing the door panel 3 to rotate freely around the hinge 2 for easy opening and closing. During use, the user can open the door panel 3 manually or electrically. When the door panel 3 is closed, the contact edges between the door panel 3 and the door frame 1 form a seal. The elastic conductive rubber sealing strip 4 enhances the sealing performance, prevents electromagnetic wave leakage, and improves the electromagnetic shielding effect. When the door is closed, the sound insulation layer... 34 effectively isolates airborne noise, ensuring a quiet interior environment; due to the reasonable thickness of the front steel plate 30 and the rear steel plate 31 and the use of high-strength low-alloy steel materials, the strength and durability of the door are guaranteed. At the same time, the honeycomb structure reinforcement layer 33 enhances the rigidity and strength of the door panel while reducing the overall weight, making the door easier to open and close; finally, the frame steel plate 32 provides additional structural support to ensure the stability of the door during use, and its outer surface is treated with an anti-corrosion coating, enhancing the door's durability and aesthetics.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength, lightweight, all-steel soundproof shielding door, including a door frame (1), characterized in that: The door frame (1) is hinged to a door panel (3) via a hinge (2). The door panel (3) includes a front steel plate (30) and a rear steel plate (31). The front steel plate (30) is located directly in front of the rear steel plate (31). The opposite sides of the front steel plate (30) and the rear steel plate (31) are provided with a reinforcing layer (33). A sound insulation layer (34) is provided between the two reinforcing layers (33). A frame-shaped steel plate (32) is provided between the front steel plate (30) and the rear steel plate (31). The sound insulation layer (34) and the two reinforcing layers (33) are all located inside the frame-shaped steel plate (32).

2. The high-strength light-weight all-steel soundproof shielding door according to claim 1, characterized in that: The edges where the door frame (1) and the door panel (3) meet are provided with elastic conductive rubber sealing strips (4) to enhance sealing performance and electromagnetic shielding effect.

3. The high-strength light-weight all-steel soundproof security door according to claim 1, characterized in that: The thickness of the front steel plate (30) and the rear steel plate (31) is 0.8-1.0 mm, and both the front steel plate (30) and the rear steel plate (31) are made of high-strength low-alloy steel.

4. The high-strength light-weight all-steel soundproof security door according to claim 1, characterized in that: The reinforcing layer (33) is a honeycomb structure plate with a thickness of 5-10mm and is made of aluminum alloy.

5. The high-strength light-weight all-steel sound-insulating shielding door according to claim 1, characterized in that: The sound insulation layer (34) has a thickness of 15-25 mm and is made of polyurethane foam material.

6. The high-strength light-weight all-steel sound-insulating shielding door according to claim 1, characterized in that: The frame steel plate (32) has a wall thickness of 0.8-1.0 mm and is made of high-strength low-alloy steel.

7. The high-strength light-weight all-steel sound-insulating shielding door according to claim 1, characterized in that: The outer surfaces of the front steel plate (30), the rear steel plate (31) and the frame steel plate (32) are all provided with an anti-corrosion coating, which is an epoxy resin coating.

Citation Information

Patent Citations

  • Stainless steel shielding door

    CN208534363U