High-strength civil air defense door frame structure

Abstract

The utility model relates to the technical field of civil air defence engineering discloses high strength civil air defence door door frame structure, including the door frame main part, the inside of door frame main part is provided with the installation clamping groove, the utility model discloses a vertical reinforcing strip is positioned through installation clamping groove, and adopts the symmetrical layout, so that the door frame is impacted by external force, both sides vertical reinforcing strip can evenly disperse force, avoid the deformation or damage of partial force too big, simultaneously, the lateral reinforcing strip of upper and lower two sides cooperates with vertical reinforcing strip, forms the reinforcing frame that crisscrosses, further strengthened the overall strength and stability of door frame, effectively disperses the external force from the up and down direction, and realizes the firm connection between reinforcing strips through mortise and tenon structure, ensures that reinforcing strip does not slacken or fall off when being stressed, improves the installation accuracy and detachability, and the reinforcing design not only improves the carrying capacity and overall strength of door frame, but also avoids the problem of the decline of protection performance due to structure loosening.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, and in particular to a high-strength civil defense door frame structure. Background Technology

[0002] In the field of civil defense engineering technology, civil defense doors are a key component of protective engineering. The strength and stability of their door frame structure are directly related to the protective effect. The main function of civil defense doors is to provide a reliable protective barrier for personnel and important facilities in emergency situations such as war or natural disasters, and to resist external impacts. Therefore, the strength and stability of the door frame structure are the core elements of civil defense doors.

[0003] Traditional air-raid shelter door frames mostly adopt a one-piece molding design. This design is relatively simple in manufacturing process and can ensure the integrity and appearance of the door frame to a certain extent. However, this design has obvious limitations. Due to the lack of internal reinforcement structure, the impact resistance and load-bearing capacity of traditional door frames are particularly insufficient when facing high-intensity external impacts. When subjected to external impacts, traditional door frames are prone to local deformation or damage, especially at the joints and areas of concentrated stress. These parts are often weak points and are easily damaged due to uneven stress. Once the door frame is deformed or damaged, it will not only affect the normal opening and closing function of the door, but also lead to a significant decrease in protective performance, making it difficult to effectively block external threats and endangering the safety of personnel and facilities. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-strength air defense door frame structure.

[0005] This utility model is achieved by the following technical solution: a high-strength air defense door frame structure, including a door frame body, an installation slot is provided inside the door frame body, a vertical reinforcing strip is provided inside the installation slot, a horizontal reinforcing strip is snapped onto the surface of the vertical reinforcing strip, a pre-positioning mortise is provided on the surface of the vertical reinforcing strip, and a connecting tenon is fixedly connected to the surface of the horizontal reinforcing strip.

[0006] Through the above technical solution, by installing slotted vertical reinforcing strips and adopting a symmetrical layout, the vertical reinforcing strips on both sides can evenly distribute the force when the door frame is subjected to external impact, avoiding deformation or damage caused by excessive local stress. At the same time, the horizontal reinforcing strips on the upper and lower sides cooperate with the vertical reinforcing strips to form a crisscrossing reinforcing frame, further enhancing the overall strength and stability of the door frame, effectively dispersing external forces from the upper and lower directions, and achieving a stable connection between the reinforcing strips through mortise and tenon structure, ensuring that the reinforcing strips will not loosen or fall off under stress, improving installation accuracy and disassembly. The reinforcement design not only improves the load-bearing capacity and overall strength of the door frame, but also avoids the problem of reduced protective performance caused by structural loosening.

[0007] As a further improvement to the above solution, two vertical reinforcing strips are provided, with the two vertical reinforcing strips located on the left and right sides of the mounting slot, respectively.

[0008] Through the above technical solution, the vertical reinforcing strips on the left and right sides can ensure that the door frame is subjected to uniform force in the left and right directions, effectively preventing structural instability caused by excessive force on one side.

[0009] As a further improvement to the above solution, two transverse reinforcing strips are provided, with the two transverse reinforcing strips located on the upper and lower sides of the mounting slot, respectively.

[0010] Through the above technical solution, the horizontal reinforcing strips on the top and bottom sides are combined with the vertical reinforcing strips on the left and right sides, so that the door frame has good support capacity in both horizontal and vertical directions, and achieves a comprehensive reinforcement effect.

[0011] As a further improvement to the above solution, the pre-positioning mortise and the connecting tenon are adapted to each other, and the connecting tenon is engaged inside the pre-positioning mortise.

[0012] Through the above technical solutions, the mortise and tenon structure connection method makes the connection between the vertical and horizontal reinforcing strips more solid and reliable, able to withstand greater external forces, and effectively avoids loosening and damage at the connection.

[0013] As a further improvement to the above solution, an outer protective layer is provided on all four sides of the outer surface of the door frame body.

[0014] Through the above technical solution, the outer protective layer can effectively isolate external corrosive substances from contact with the door frame body, prevent the door frame from being damaged by corrosion, and improve the durability of the door frame.

[0015] As a further improvement to the above solution, the outer protective layer is made of fluorocarbon coating.

[0016] Through the above technical solutions, fluorocarbon coatings can withstand long-term ultraviolet radiation and are not prone to fading or chalking, allowing door frames to maintain a good appearance and performance in outdoor environments and adapt to various climatic conditions.

[0017] As a further improvement to the above solution, the main body of the door frame is made of aluminum alloy.

[0018] Through the above technical solutions, the aluminum alloy material significantly reduces the weight of the door frame while ensuring sufficient strength, making the door frame lighter and more flexible during installation and use.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model uses mounting slots to position vertical reinforcing strips and adopts a symmetrical layout. This allows the vertical reinforcing strips on both sides to evenly distribute the force when the door frame is subjected to external impact, avoiding deformation or damage caused by excessive local stress. At the same time, the horizontal reinforcing strips on the upper and lower sides cooperate with the vertical reinforcing strips to form a crisscrossing reinforcing frame, further enhancing the overall strength and stability of the door frame and effectively dispersing external forces from the upper and lower directions. Furthermore, the mortise and tenon structure ensures a stable connection between the reinforcing strips, ensuring that the reinforcing strips will not loosen or fall off under stress, improving installation accuracy and disassembly. The reinforcement design not only improves the load-bearing capacity and overall strength of the door frame, but also avoids the problem of reduced protective performance due to structural loosening. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the vertical reinforcing strip of this utility model;

[0023] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 This is a schematic diagram of the transverse reinforcing strip of this utility model;

[0025] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0026] Explanation of key symbols:

[0027] 1. Door frame body; 2. Mounting slot; 3. Vertical reinforcing strip; 4. Horizontal reinforcing strip; 5. Pre-positioning mortise; 6. Connecting tenon; 7. Outer protective layer. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0029] Please combine Figure 1-5The high-strength air-raid shelter door frame structure of this embodiment includes a door frame body 1. The door frame body 1 has an internal mounting groove 2, and a vertical reinforcing strip 3 is installed inside the mounting groove 2. A horizontal reinforcing strip 4 is snapped onto the surface of the vertical reinforcing strip 3. A pre-positioning mortise 5 is provided on the surface of the vertical reinforcing strip 3, and a connecting tenon 6 is fixedly connected to the surface of the horizontal reinforcing strip 4. Through the cooperation of the pre-positioning mortise 5 and the connecting tenon 6, a stable connection between the horizontal reinforcing strip 4 and the vertical reinforcing strip 3 is achieved. This structural design allows the vertical and horizontal reinforcing strips to jointly distribute and bear the force when the door frame is subjected to external impact, enhancing the overall strength and stability of the door frame.

[0030] There are two vertical reinforcing strips 3, which are located on the left and right sides of the mounting slot 2 respectively. When subjected to external force, the vertical reinforcing strips 3 on both sides can evenly distribute the force to avoid local deformation or damage caused by uneven force.

[0031] There are two horizontal reinforcing strips 4, which are located on the upper and lower sides of the mounting slot 2 respectively. They can effectively disperse external forces from the upper and lower directions, and work together with the vertical reinforcing strips to further enhance the overall strength and stability of the door frame.

[0032] The pre-positioned mortise 5 and the connecting tenon 6 are compatible. The connecting tenon 6 is engaged inside the pre-positioned mortise 5. The mortise and tenon structure achieves a stable connection between the reinforcing strips. The mortise and tenon structure has good stability and pull-out resistance, which can ensure that the reinforcing strips will not loosen or fall off when under stress.

[0033] The outer surface of the door frame body 1 is provided with an outer protective layer 7 on all four sides. The outer protective layer can protect the door frame body 1 and resist the erosion of the door frame body 1 by external environmental factors such as corrosive gases, moisture, and ultraviolet rays, thus extending the service life of the door frame.

[0034] The outer protective layer 7 is made of fluorocarbon coating, which has excellent weather resistance, corrosion resistance and wear resistance.

[0035] The main body of the door frame 1 is made of aluminum alloy. Aluminum alloy can reduce the weight of the door frame while ensuring its strength, making it easier to install and use.

[0036] The implementation principle of the high-strength civil defense door frame structure in this application embodiment is as follows: The mounting groove 2 inside the door frame body 1 provides an installation position for the vertical reinforcing strip 3. The vertical reinforcing strip 3 is symmetrically arranged on both sides, which can evenly distribute the force when subjected to external force, avoiding excessive local force that could lead to deformation or damage. At the same time, the horizontal reinforcing strip 4 is located on the upper and lower sides of the mounting groove 2, and cooperates with the vertical reinforcing strip 3 to form a crisscrossing reinforcing frame, further enhancing the overall strength and stability of the door frame and effectively dispersing external forces from the upper and lower directions. The pre-positioned mortises 5 on the surface of the vertical reinforcing strip 3 are adapted to the connecting tenons 6 on the surface of the horizontal reinforcing strip 4. The mortise and tenon structure achieves a stable connection between the reinforcing strips, ensuring that the reinforcing strips will not loosen or fall off when subjected to force, and also improving installation accuracy and disassembly. The outer protective layer 7 around the outer surface of the door frame body 1 is made of fluorocarbon coating material, which has excellent weather resistance, corrosion resistance and wear resistance. The door frame body 1 itself is made of aluminum alloy material, which significantly reduces the weight of the door frame while ensuring sufficient strength, making it easy to install and use.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-strength air-raid shelter door frame structure, characterized in that, The door frame includes a main body (1), the interior of which is provided with an installation slot (2), the interior of which is provided with a vertical reinforcing strip (3), the surface of which is fitted with a horizontal reinforcing strip (4), the surface of which is provided with a pre-positioning mortise (5), and the surface of which is fixedly connected with a connecting tenon (6).

2. The high-strength air-raid shelter door frame structure as described in claim 1, characterized in that: There are two vertical reinforcing strips (3), and the two vertical reinforcing strips (3) are located on the left and right sides of the mounting slot (2) respectively.

3. The high-strength air-raid shelter door frame structure as described in claim 1, characterized in that: There are two transverse reinforcing strips (4), which are located on the upper and lower sides of the mounting slot (2).

4. The high-strength air-raid shelter door frame structure as described in claim 1, characterized in that: The pre-positioning mortise (5) and the connecting tenon (6) are adapted to each other, and the connecting tenon (6) is engaged inside the pre-positioning mortise (5).

5. The high-strength air-raid shelter door frame structure as described in claim 1, characterized in that: The outer surface of the door frame body (1) is provided with an outer protective layer (7) around all four sides.

6. The high-strength air-raid shelter door frame structure as described in claim 5, characterized in that: The outer protective layer (7) is made of fluorocarbon coating.

7. The high-strength air-raid shelter door frame structure as described in claim 1, characterized in that: The door frame body (1) is made of aluminum alloy.

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