Pressure-bearing door applied to pressurized building and pressurized building

By using transparent polycarbonate door panels and partial reinforcement plates, combined with electric door closers and electromagnetic locks, the problems of heavy steel structure pressure doors, poor corrosion resistance, and insufficient light transmission have been solved, realizing the functions of lightweight, light-transmitting, and automated pressure doors.

CN224200522UActive Publication Date: 2026-05-05TIBET RAILWAY CONSTR HEAVY IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIBET RAILWAY CONSTR HEAVY IND TECH CO LTD
Filing Date
2025-05-26
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing steel structure pressure doors are bulky, difficult to install, have poor corrosion resistance, insufficient light transmission, and complex and costly automation devices.

Method used

The door panel is made of transparent polycarbonate (PC), with local reinforcement plates and sealing components. Combined with electric door closer and electromagnetic lock, it can realize automatic door opening and closing and sealing, and meet the pressure requirements.

Benefits of technology

It improves the light transmittance and corrosion resistance of the door, reduces weight and installation difficulty, achieves automated control, and ensures the smooth operation of the pressure inflation and deflation process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224200522U_ABST
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Abstract

The utility model relates to the technical field of pressurized buildings, in particular to a pressure-bearing door applied to a pressurized building and the pressurized building. The pressure-bearing door comprises a door frame, a door plate assembly, an electric door closer, an electromagnetic attraction lock and a sealing assembly; the door plate assembly is hinged to the door frame. The door plate assembly comprises a door plate and at least one local reinforcing plate, and the local reinforcing plate is fixed to the door plate. The electric door closer is arranged on the door frame and is connected with the door plate through an electric door closer pull arm; the electromagnetic attraction lock is arranged on the door frame and the door plate assembly; the sealing assembly is arranged between the door frame and the door plate assembly. According to the pressure-bearing door provided by the utility model, the door plate adopts the PC door plate, so that the light transmission of the pressure-bearing door is improved, and indoor lighting of a pressurized building is facilitated; compared with a steel structure door plate, the door plate is light in weight and easy to carry and install; a conventional electric door closer can be selected to meet the door opening and closing requirements, and the cost is saved; and the material is not easily eroded by the external environment, and can keep stable performance in a complex environment.
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Description

Technical Field

[0001] This utility model relates to the field of pressurized building technology, specifically providing a pressure-bearing door and a pressurized building for use in pressurized buildings. Background Technology

[0002] In current pressurized buildings, the most common type of door is the steel structure pressure door. While steel structure pressure doors have certain advantages in strength and rigidity, they also have many problems: 1. In terms of material characteristics, steel structure doors are usually quite heavy, making them difficult to move and install. Opening and closing them is time-consuming and labor-intensive. If an automatic door opening and closing device is required, the device is complex and costly. 2. In terms of corrosion resistance, steel structure doors are prone to rust and require regular maintenance, increasing maintenance costs. 3. In terms of light transmission, steel structure doors have poor light transmission, which is not conducive to the lighting inside the pressurized building.

[0003] Based on the above, this utility model provides a pressure-bearing door and a pressure-boosting building for use in pressurized buildings, in order to solve the technical problems existing in the prior art. Utility Model Content

[0004] The purpose of this utility model is to provide a pressure-bearing door and a pressure-bearing structure for use in pressurized buildings. The specific technical solution is as follows:

[0005] A pressure-bearing door for use in pressurized buildings includes a door frame, a door panel assembly, an electric door closer, an electromagnetic lock, and a sealing assembly;

[0006] The door panel assembly is hinged to the door frame; the door panel assembly includes a door panel and at least one local reinforcing plate, the local reinforcing plate being fixed to the door panel to limit the pressure deformation of the door panel;

[0007] The electric door closer is installed on the door frame and connected to the door panel via the electric door closer pull arm;

[0008] The electromagnetic magnetic lock is installed on the door frame and door panel assembly to achieve a tight fit between the door panel assembly and the door frame;

[0009] The sealing assembly is disposed between the door frame and the door panel assembly for sealing the door frame and the door panel assembly.

[0010] Furthermore, the door panel is a PC door panel, which is a transparent solid polycarbonate board with a light transmittance of ≥89% and a thickness of 10-25mm; the surface of the PC door panel is provided with an anti-ultraviolet coating.

[0011] Furthermore, the local reinforcing plate is made of metal; the local reinforcing plate is fixed to the middle area of ​​the inner and outer sides of the PC door panel by bolts.

[0012] Furthermore, the door frame is made of carbon steel; the area of ​​the door frame that contacts the PC door panel is machined to form a sealing surface with a flatness of ±0.5mm.

[0013] Furthermore, the sealing component is embedded in the sealing surface of the door frame.

[0014] Furthermore, the sealing assembly uses a silicone sealing strip, and the cross-sectional shape of the silicone sealing strip is a hollow multi-cavity structure.

[0015] Furthermore, the electromagnetic lock includes an electromagnetic lock body and a magnetic lock connecting plate. The electromagnetic lock body is disposed on the door frame, and the magnetic lock connecting plate is disposed on the edge of the PC door panel. The magnetic lock connecting plate cooperates with the electromagnetic lock body to achieve a tight fit between the door panel assembly and the door frame.

[0016] Furthermore, the electric door closer and the electromagnetic lock are respectively connected to the pressurized building pressure control system to realize one-button opening and delayed automatic closing of the door panel assembly.

[0017] Furthermore, the door panel assembly is hinged to the door frame via hinges made of stainless steel, and a damping structure is provided at the connection between its pivot and the door frame and the door panel assembly. The damping structure is used to reduce the impact of opening and closing the door.

[0018] A pressurized building includes a main structure and a pressure-bearing door as described above, the pressure-bearing door being disposed on the main structure.

[0019] The application of the technical solution of this utility model has the following beneficial effects:

[0020] (1) This utility model provides a pressure-bearing door for pressurized buildings, including a door frame, a door panel assembly, an electric door closer, an electromagnetic lock, and a sealing assembly; the door panel assembly is hinged to the door frame; the door panel assembly includes a door panel and at least one local reinforcing plate, the local reinforcing plate being fixed to the door panel to limit the pressure deformation of the door panel; the electric door closer is disposed on the door frame and connected to the door panel through an electric door closer pull arm; the electromagnetic lock is disposed on the door frame and the door panel assembly to achieve a tight fit between the door panel assembly and the door frame; the sealing assembly is disposed between the door frame and the door panel assembly for sealing between the door frame and the door panel assembly. The pressure-bearing door provided by this utility model uses a PC door panel, which improves the light transmittance of the pressure-bearing door and is beneficial for indoor lighting in pressurized buildings; compared with steel structure door panels, it is lighter in weight and easier to transport and install; conventional electric door closers can meet the needs of opening and closing the door, saving costs; it is not easily corroded by the external environment and can maintain stable performance in complex environments.

[0021] (2) In this utility model, the PC door panel is a transparent solid polycarbonate board with a light transmittance of ≥89%, which meets the requirements for light transmittance; the thickness is 10-25mm, which meets the requirements for pressure resistance.

[0022] (3) In this utility model, the surface of the PC door panel is provided with an anti-ultraviolet coating to improve the oxidation resistance of the PC door panel and extend its service life.

[0023] (4) In this utility model, a local reinforcing plate is fixed on the PC door panel. The local reinforcing plate is made of metal and is fixed to the middle area of ​​the inner and outer sides of the PC door panel by bolts, which restricts the deformation of the PC door panel when it is under pressure and improves the pressure bearing capacity of the door panel.

[0024] (5) In this utility model, the electric door closer is used in conjunction with the door frame and door panel assembly to realize automatic opening and closing of the door, which facilitates the entry and exit of personnel; the electromagnetic lock is used in conjunction with the door frame and door panel assembly to realize the tight fit between the door frame and door panel assembly; and the use of the sealing component is used to realize the sealing of the pressure-bearing door, ensuring that the transition room of the pressurized building is always pressurized and depressurized in a sealed state.

[0025] (6) In this utility model, the electric door closer and the electromagnetic lock are respectively connected to the pressurized building pressure control system to realize the linkage between the electric door closer and the electromagnetic lock and the pressurized building pressure control system, so as to ensure the smooth progress of the pressure-increasing process and avoid the situation that people cannot enter or exit due to forgetting to close the door.

[0026] (7) This utility model provides a pressurized building, including a main structure of the pressurized building and a pressure-bearing door as described above. The pressure-bearing door is installed on the main structure of the pressurized building. The pressure-bearing door meets the light transmission requirements, can realize automatic opening and closing, facilitates personnel entry and exit, and meets the pressure-boosting building's pressure-releasing requirements.

[0027] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0029] Figure 1 This is a schematic diagram of the pressure-bearing door in an embodiment of this utility model;

[0030] Figure 2 This is a structural diagram of a pressure-bearing door without its frame.

[0031] The components include: 1. Door frame; 2. Door panel assembly; 2.1. PC door panel; 2.2. Partial reinforcement plate; 3. Electric door closer; 4. Electromagnetic lock; 4.1. Electromagnetic lock body; 4.2. Magnetic lock connecting plate; 5. Sealing assembly; 6. Electric door closer pull arm; 7. Bolt; 8. Hinge. Detailed Implementation

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] Example

[0036] See Figure 1 and Figure 2 This embodiment provides a pressure-bearing door for pressurized buildings, including a door frame 1, a door panel assembly 2, an electric door closer 3, an electromagnetic lock 4, and a sealing assembly 5; the door panel assembly 2 is hinged to the door frame 1 by a hinge 8, the hinge 8 is made of stainless steel, and a damping structure is provided at the connection between its pivot and the door frame 1 and the door panel assembly 2, the damping structure being used to reduce the impact of opening and closing the door.

[0037] The door panel assembly 2 includes a door panel and at least one local reinforcing plate 2.2, wherein the local reinforcing plate 2.2 is fixed to the door panel to limit the pressure deformation of the door panel;

[0038] Preferably, the door panel is a PC door panel 2.1, which is a transparent solid polycarbonate board with a light transmittance ≥89% and a thickness of 10-25mm. The surface of the PC door panel 2.1 is provided with an anti-ultraviolet coating to improve its oxidation resistance. This utility model uses PC door panel 2.1, which has good light transmittance, facilitating indoor lighting and saving energy consumed by indoor lighting needs. PC door panel 2.1 has higher strength than tempered glass, is impact-resistant, and weighs only half that of glass, making it easy to handle and install. Compared with steel structure doors, it is less susceptible to corrosion from the external environment and can maintain stable performance in complex environments. Furthermore, load-bearing steel doors are generally heavy and require significant force to open and close, while PC door panels are lightweight, reducing structural weight. Conventional electric door closers can meet the needs of automatic door opening and closing, saving costs.

[0039] Preferably, the local reinforcing plate 2.2 is made of metal; the local reinforcing plate 2.2 is fixed to the middle area of ​​the inner and outer sides of the PC door panel 2.1 by bolts, which restricts the deformation of the PC door panel 2.1 under pressure and improves the pressure-bearing capacity of the door panel.

[0040] In this embodiment, the door frame 1 is made of carbon steel and is used to bear and transmit the load of the PC door panel 2.1. Its shape and size are rationally designed according to the size of the door panel assembly 2 and the installation requirements. The area of ​​the door frame 1 that contacts the PC door panel 2.1 is machined to form a sealing surface with a flatness of ±0.5mm to facilitate sealing after the PC door panel 2.1 is fitted to the door frame 1. Preferably, the sealing component 5 is embedded in the sealing surface of the door frame 1. The sealing component 5 is a silicone sealing strip. The cross-sectional shape of the silicone sealing strip 3 is a hollow multi-cavity structure. During installation, it is continuously laid along the sealing surface of the door frame 1. When the door panel assembly 2 is closed, it achieves sealing through compression deformation, ensuring the airtightness of the pressure-bearing door and preventing gas leakage in the pressurized building.

[0041] The door frame 1 is also provided with multiple mounting parts, which are used to install electric door closer 3, electromagnetic lock 4, sealing component 5 and hinge 8 respectively.

[0042] In this embodiment, the electric door closer 3 is installed on the door frame 1 and connected to the PC door panel 2.1 through the electric door closer pull arm 6. It is used to realize automatic door opening and closing. After the door is open for a period of time, the electric door closer 3 can respond in time and automatically push the door to close, avoiding the situation where the door is not closed due to human negligence, and ensuring that the transition room of the pressurized building is always pressurized and depressurized in a sealed state.

[0043] In this embodiment, the electromagnetic lock 4 is disposed on the door frame 1 and the door panel assembly 2 to achieve a tight fit between the door panel assembly 2 and the door frame 1. The electromagnetic lock 4 includes an electromagnetic lock body 4.1 and a magnetic lock connecting plate 4.2. The electromagnetic lock body 4.1 is disposed on the door frame 1, and the magnetic lock connecting plate 4.2 is disposed on the edge of the PC door panel 2.1. The magnetic lock connecting plate 4.2 cooperates with the electromagnetic lock body 4.1 to achieve a tight fit between the door panel assembly 2 and the door frame 1. When the door is closed, the electromagnetic lock 4 is energized to generate a strong suction force, ensuring a tight fit between the PC door panel 2.1 and the door frame 1. The suction force of the electromagnetic lock 4 should meet the actual application requirements (the suction force value should be adapted to the sealing pressure requirements during the pressure charging and depressurization process) to ensure the sealing performance of the pressure-bearing door during the pressure charging and depressurization process.

[0044] In this embodiment, the electric door closer 3 and the electromagnetic lock 4 are respectively connected to the pressurized building pressure control system to realize one-button opening and delayed automatic closing of the door panel assembly 2. Specifically, after pressing the door open button and completing the pressure release, the internal and external pressures of the pressure-bearing door are in a balanced state (less than 10 Pa). The system automatically transmits signals to the electromagnetic lock 4 and the electric door closer 3. The electromagnetic lock 4 disconnects the magnetic force, and the electric door closer 3 enters the opening state, opening the door. The electromagnetic lock 4 automatically regenerates power 5 seconds after power failure. When the electric door closer 3 enters the closing state, it attracts the PC door panel 2.1 when it closes, achieving the fit between the PC door panel 2.1 and the door frame 1. In this embodiment, the pressurized building pressure control system and its operating principle, as well as the operating principles of the electric door closer 3 and the electromagnetic lock 4, refer to the prior art.

[0045] The pressure-bearing door provided in this embodiment is linked with the pressurized building inflation and deflation control system through the electric door closer 3 and the electromagnetic lock 4 to realize automatic door opening and closing and ensure the tight fit between the door panel assembly 2 and the door frame 1, so as to ensure the smooth progress of the inflation and deflation process and avoid the situation where people cannot enter or exit due to forgetting to close the door.

[0046] This embodiment also provides a pressurized building, including a main structure of the pressurized building and a pressure-bearing door as described above. The pressure-bearing door is installed on the main structure of the pressurized building. The pressure-bearing door meets the light transmission requirements, can be automatically opened and closed, facilitates personnel entry and exit, and meets the pressure-boosting building's pressure-release requirements.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure-bearing door for use in pressurized buildings, characterized in that, Includes a door frame (1), a door panel assembly (2), an electric door closer (3), an electromagnetic lock (4), and a sealing assembly (5); The door panel assembly (2) is hinged to the door frame (1); the door panel assembly (2) includes a door panel and at least one local reinforcing plate (2.2), the local reinforcing plate (2.2) is fixed to the door panel to limit the pressure deformation of the door panel; The electric door closer (3) is installed on the door frame (1) and connected to the door panel through the electric door closer pull arm (6); The electromagnetic magnetic lock (4) is installed on the door frame (1) and the door panel assembly (2) to achieve a tight fit between the door panel assembly (2) and the door frame (1); The sealing component (5) is disposed between the door frame (1) and the door panel assembly (2) for sealing between the door frame (1) and the door panel assembly (2).

2. A pressure-bearing door for use in pressurized buildings according to claim 1, characterized in that, The door panel is a PC door panel (2.1), which is a transparent solid polycarbonate board with a light transmittance of ≥89% and a thickness of 10-25mm; the surface of the PC door panel (2.1) is provided with an anti-ultraviolet coating.

3. A pressure-bearing door for use in pressurized buildings according to claim 2, characterized in that, The local reinforcing plate (2.2) is made of metal; the local reinforcing plate (2.2) is fixed to the middle area of ​​the inner and outer sides of the PC door panel (2.1) by bolts (7).

4. A pressure-bearing door for use in pressurized buildings according to claim 2, characterized in that, The door frame (1) is made of carbon steel; the area of ​​the door frame (1) that contacts the PC door panel (2.1) is machined to form a sealing surface with a flatness of ±0.5mm.

5. A pressure-bearing door for use in pressurized buildings according to claim 4, characterized in that, The sealing component (5) is embedded in the sealing surface of the door frame (1).

6. A pressure-bearing door for use in pressurized buildings according to claim 5, characterized in that, The sealing assembly (5) includes a silicone sealing strip, the cross-sectional shape of which is a hollow multi-cavity structure.

7. A pressure-bearing door for use in pressurized buildings according to claim 2, characterized in that, The electromagnetic lock (4) includes an electromagnetic lock body (4.1) and a magnetic lock connecting plate (4.2). The electromagnetic lock body (4.1) is disposed on the door frame (1), and the magnetic lock connecting plate (4.2) is disposed on the edge of the PC door panel (2.1). The magnetic lock connecting plate (4.2) cooperates with the electromagnetic lock body (4.1) to achieve a tight fit between the door panel assembly (2) and the door frame (1).

8. A pressure-bearing door for use in pressurized buildings according to claim 1, characterized in that, The electric door closer (3) and electromagnetic lock (4) are respectively connected to the pressurized building pressure control system to realize one-button opening and delayed automatic closing of the door panel assembly (2).

9. A pressure-bearing door for use in pressurized buildings according to any one of claims 1-8, characterized in that, The door panel assembly (2) is hinged to the door frame (1) by a hinge (8). The hinge (8) is made of stainless steel and has a damping structure at the connection between its pivot and the door frame (1) and the door panel assembly (2). The damping structure is used to reduce the impact of opening and closing the door.

10. A pressurized building, characterized in that, It includes a pressurized building main structure and a pressure-bearing door as described in any one of claims 1-9, wherein the pressure-bearing door is disposed on the pressurized building main structure.