Single-panel steel structure protective sealed door

Abstract

The utility model relates to a single -sided panel steel structure protection airtight door, including door frame and door leaf, the door frame is used for fixing on the wall body, its innovation lies in: the door leaf includes door leaf frame, panel and the seal beam structure of downside, on the door leaf frame, the single -sided beam board structure is fixedly connected in the panel inboard, the single -sided beam board structure includes horizontal beam and longitudinal reinforcing plate. The utility model adopts single -sided panel design, cancelled the panel of back, has the characteristics such as small weight, low cost, and convenient manufacture maintenance, and can reach the strength of stable and reliable equally.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering equipment, and in particular to a single-panel steel structure protective airtight door. Background Technology

[0002] Airtight doors in civil defense projects are widely used in various underground spaces. They need to be able to protect against high-level shock waves as well as prevent the intrusion of water or smoke, so that the interior space is relatively safe.

[0003] Currently, commonly used protective airtight doors typically employ a frame and double panels (front and back), with horizontal and vertical I-beams welded to the panel frame as reinforcing ribs. This structure significantly increases the overall weight of the door, raising the product cost. Furthermore, the traditional I-beam reinforcing rib structure is difficult to weld, and applying anti-corrosion and rust-proof materials to the inner surface is cumbersome. However, since panels are installed on both sides, later maintenance is convenient. At the same time, protective airtight doors used in civil defense projects involve safety issues, requiring absolute quality control. In reality, acceptance and inspection can only be conducted by disassembling the finished doors, allowing for only random sampling and making it impossible to fully test every single one. Summary of the Invention

[0004] This utility model provides a single-panel steel structure protective airtight door that is lightweight, inexpensive, and easy to manufacture and maintain.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A single-panel steel structure protective airtight door includes a door frame and a door leaf. The door frame is used to fix it to a wall. Its innovation lies in the following: the door leaf includes a door leaf frame, a panel, and a sealing beam structure on the lower side; a single-sided beam plate structure is fixedly connected to the inner side of the panel on the door leaf frame, and the single-sided beam plate structure includes a transverse beam and a longitudinal reinforcing plate.

[0006] Furthermore, there are multiple transverse beams, and the height of the middle part of each transverse beam is higher than the height of its two sides.

[0007] Furthermore, the cross-section of the transverse beam is trapezoidal.

[0008] Furthermore, the sealing beam structure includes a rotating shaft, a sealing strip, and a handle. The two ends of the rotating shaft are fixedly connected to the door leaf by bearings, and the rotating shaft is fixedly connected to the sealing strip by a linkage mechanism.

[0009] Furthermore, the handle is connected to the rotating shaft via a steering mechanism, and the linkage mechanism includes a main connecting rod, a rotating bushing, and a stop block, with the stop block fixedly connected to a sealing strip; one end of the rotating bushing is fixedly connected to the rotating shaft, and the other end is rotatably connected to one end of the main connecting rod, the other end of the main connecting rod is rotatably connected to the stop block, and the stop block is also rotatably connected to the door leaf.

[0010] Furthermore, sealing blocks are connected to both sides of the door leaf via pressure rods.

[0011] In summary, the advantages of this utility model over traditional technologies are as follows: This utility model adopts a single-panel design, eliminating the need for a back panel. To achieve the required strength, a new internal reinforcing rib structure has been modified and designed, employing multiple transverse beams and longitudinal reinforcing plates. This design not only reduces the weight of the entire door leaf, but the single-panel structure also facilitates welding and manufacturing operations. The absence of a back panel also facilitates later maintenance and corrosion prevention of the door leaf, and makes inspection during delivery easier. Attached Figure Description

[0012] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after it is installed on the door frame; Figure 3 for Figure 2 Another view; The components are: 1. Door frame; 2. Door leaf; 2-1. Door leaf frame; 2-2. Panel; 3. Sealing beam structure; 3-1. Rotating shaft; 3-2. Sealing strip; 3-3. Handle; 3-4. Steering mechanism; 4. Single-sided beam plate structure; 4-1. Transverse beam; 4-2. Longitudinal reinforcing plate; 5. Linkage mechanism; 5-1. Main connecting rod; 5-2. Rotating bushing; 5-3. Abutment block; 6. Pressure rod; 7. Sealing block. Detailed Implementation

[0014] Based on the preferred embodiments of this utility model, and through the following description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0015] The present invention will be further described with reference to the following figures: like Figure 1 , 2As shown in Figure 3, a single-panel steel structure protective airtight door includes a door frame 1 and a door leaf 2. The door frame 1 is used to fix it to the wall. Its innovative features are: the door leaf 2 includes a door leaf frame 2-1, a panel 2-2, and a lower sealing beam structure 3; a single-sided beam plate structure 4 is fixedly connected to the inner side of the panel 2-2 on the door leaf frame 2-1, and the single-sided beam plate structure 4 includes a transverse beam 4-1 and a longitudinal reinforcing plate 4-2. Through the above structure, the protective airtight door of this utility model reduces its weight by more than one-third, lowering manufacturing costs. Compared with the traditional I-beam steel plate beam structure, it facilitates automated welding by robotic arms; the single-sided beam plate structure is easy to paint; and it facilitates maintenance throughout its entire life cycle. The single-sided beam plate structure also facilitates the supervision and inspection of the internal frame of the door leaf by the competent authorities.

[0016] like Figure 2 As shown, when installing and using the protective airtight door of this utility model, the door frame is first installed on the wall with bolts, and the bottom of the door leaf is sealed by a sealing beam.

[0017] like Figure 1 As shown, there are multiple transverse beams 4-1, and the height of the middle part of each transverse beam 4-1 is higher than the height of its two sides. The transverse beams 4-1 of this utility model are fish-belly beam structures.

[0018] like Figure 1 As shown, the cross-section of the transverse beam 4-1 is trapezoidal. The structural design of the transverse beam 4-1 described above can also meet the design requirements and satisfy various explosive impact experiments. In this utility model, when a shock wave is generated, the center of the front of the door leaf experiences the greatest force. Therefore, the transverse beam 4-1 is designed with a higher center and lower ends, which not only saves materials but also meets all design requirements.

[0019] like Figure 1 As shown, the sealing beam structure 3 includes a rotating shaft 3-1, a sealing strip 3-2, and a handle 3-3. The two ends of the rotating shaft 3-1 are fixedly connected to the door leaf 2 via bearings, and the rotating shaft 3-1 is fixedly connected to the sealing strip 3-2 via a linkage mechanism 5. Through the sealing beam, the compression of the sealing strip 3-2 can be accurately controlled, ensuring an airtight seal.

[0020] like Figure 1 As shown, the handle 3-3 is connected to the rotating shaft 3-1 via a steering mechanism 3-4. The linkage mechanism 5 includes a main connecting rod 5-1, a rotating bushing 5-2, and a stop block 5-3. The stop block 5-3 is fixedly connected to the sealing strip 3-2. One end of the rotating bushing 5-2 is fixedly connected to the rotating shaft 3-1, and the other end is rotatably connected to one end of the main connecting rod 5-1. The other end of the main connecting rod 5-1 is rotatably connected to the stop block 5-3. The stop block 5-3 is also rotatably connected to the door leaf 2. This sealing structure saves space and allows for free rotation and opening within the door thickness.

[0021] like Figure 1 As shown, in order to ensure the airtightness of the door leaf, sealing blocks 7 are connected to both the left and right sides of the door leaf 2 by pressure rods 6.

[0022] In summary, this utility model provides a single-leaf thresholdless protective airtight door that eliminates the need for panels on both sides of traditional protective airtight doors. It uses only a single panel, which, while ensuring all safety indicators, also offers the advantages of being lightweight, easy to manufacture, and convenient to maintain and inspect.

Claims

1. A single-panel steel structure protective airtight door, comprising a door frame (1) and a door leaf (2), wherein the door frame (1) is used to be fixed to a wall, characterized in that: The door leaf (2) includes a door leaf frame (2-1), a panel (2-2) and a sealing beam structure (3) on the lower side; on the door leaf frame (2-1), a single-sided beam plate structure (4) is fixedly connected to the inner side of the panel (2-2), and the single-sided beam plate structure (4) includes a transverse beam (4-1) and a longitudinal reinforcing plate (4-2).

2. The single-panel steel structure protective airtight door according to claim 1, characterized in that: There are multiple transverse beams (4-1), and the height of the middle part of each transverse beam (4-1) is higher than the height of its two sides.

3. A single-panel steel structure protective airtight door according to claim 2, characterized in that: The cross section of the transverse beam (4-1) is trapezoidal.

4. A single-panel steel structure protective airtight door according to claim 1, characterized in that: The sealing beam structure (3) includes a rotating shaft (3-1), a sealing strip (3-2), and a handle (3-3). The two ends of the rotating shaft (3-1) are fixedly connected to the door leaf (2) by bearings, and the rotating shaft (3-1) is fixedly connected to the sealing strip (3-2) by a linkage mechanism (5).

5. A single-panel steel structure protective airtight door according to claim 4, characterized in that: The handle (3-3) is connected to the rotating shaft (3-1) via the steering gear (3-4). The linkage mechanism (5) includes a main connecting rod (5-1), a rotating bushing (5-2), and a stop block (5-3). The stop block (5-3) is fixedly connected to the sealing strip (3-2). One end of the rotating bushing (5-2) is fixedly connected to the rotating shaft (3-1), and the other end is rotatably connected to one end of the main connecting rod (5-1). The other end of the main connecting rod (5-1) is rotatably connected to the stop block (5-3). The stop block (5-3) is also rotatably connected to the door leaf (2).

6. A single-panel steel structure protective airtight door according to claim 1, characterized in that: The left and right sides of the door leaf (2) are also connected to sealing blocks (7) by pressure rods (6).

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