Door leaf assembly of civil air defense project
By improving the door leaf assembly structure and adopting skeleton assembly welding and support structure, the problem of high difficulty in operation of heavy door leaf is solved, and the door leaf with high strength and high protection performance is achieved, which improves the evacuation speed and safety in emergencies.
Patent Information
- Application Number
- CN202421991450.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing civil defense engineering door leaf is made of thicker steel plates or heavy-duty materials, which leads to high weight and high operation difficulty, which affects the evacuation speed and safety in emergencies.
A door leaf assembly structure is designed, including the middle fan assembly, the left fan assembly and the right fan assembly. It adopts angle steel such as frame assembly welding and hot rolling, combined with inclined steel plates and straight steel plates, forming a frame through welding, and using telescopic top support channel steel and suspension support to reduce operation difficulty while maintaining high protection performance.
It improves the strength and protective performance of the door leaf, reduces the difficulty of operation, and improves the evacuation speed and safety in emergencies.
Smart Images

Figure CN223075420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of civil air defense engineering, and particularly relates to the general assembly of a door leaf of a civil air defense engineering. Background Technique
[0002] The civil air defense project, also known as the civil air defense works, refers to the underground protective buildings independently built to protect the personnel and materials during wartime, civil air defense command, and medical rescue during wartime, as well as the basements that can be used for air defense during wartime built in combination with ground buildings, mainly playing the roles of concealment and protection.
[0003] The door leaf structure of the civil air defense project is an important part of the civil air defense project, and its design and manufacture are directly related to the safety and protection performance of the underground space. Although the general assembly of the door leaf of the civil air defense project strives for perfection in design, there are still some deficiencies, which may affect the performance, safety or service life of the door leaf. The door leaves with high protection levels often use thicker steel plates or other heavy materials, which makes the overall weight of the door leaf relatively large. The heavy door leaf requires a large amount of force to open and close, increasing the operation difficulty. Especially in case of emergency, it may affect the evacuation speed. Therefore, a general assembly of a door leaf of a civil air defense project is proposed. Content of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a general assembly of a door leaf of a civil air defense project, and solves the problems put forward in the above background technique.
[0006] (II) Technical Solutions
[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A general assembly of a door leaf of a civil air defense project, including a door leaf structure, the door leaf structure includes an intermediate fan assembly, a left fan assembly and a right fan assembly, the left fan assembly, the intermediate fan assembly and the right fan assembly are arranged in sequence and are used to form the door leaf structure, the intermediate fan assembly includes a skeleton group welding, in the skeleton group welding, there is a hot-rolled equal-angle steel connected to the skeleton group welding, in the hot-rolled equal-angle steel, there is an inclined steel plate connected to the hot-rolled equal-angle steel, and in the skeleton group welding, there is a straight steel plate connected to the skeleton group welding.
[0008] Further, the skeleton group welding includes a frame, in the frame, there is an outer panel connected to the frame, and in the frame, there is an inner panel connected to the frame.
[0009] Further, the frame includes upper and lower channel steels, a first transverse I-beam, a second transverse I-beam and a longitudinal I-beam, the longitudinal I-beam is sequentially installed between the upper and lower channel steels, and the first transverse I-beam and the second transverse I-beam are sequentially installed in the longitudinal I-beam.
[0010] Furthermore, telescopic top support channel steels connected to longitudinal I-beams are provided in the frame. Two longitudinal I-beams are sequentially installed in the upper and lower channel steels. Reducer support channel steels are installed between adjacent longitudinal I-beams. Suspension supports connected to the tops of the upper and lower channel steels are provided in the frame. A plurality of locking sleeves capable of connecting to the tops and bottoms of the upper and lower channel steels are provided in the frame.
[0011] Furthermore, locking sleeve reinforcing plates adapted to the locking sleeves at the tops of the upper and lower channel steels are provided in the frame, and locking sleeve reinforcing plates adapted to the locking sleeves at the bottoms of the upper and lower channel steels are provided in the frame. Guide arc plates connected to the tops of the upper and lower channel steels are provided in the frame. Ring spigot nuts capable of connecting to the tops of the upper and lower channel steels are provided on the frame.
[0012] Furthermore, the inner panel is welded into the frame. The outer panel includes a static panel and a movable panel. The movable panel is installed in the frame by M5 bolts. The static panel is welded into the frame.
[0013] Furthermore, the weld height between the inner panel and the frame is greater than or equal to 5 mm, and the weld diameter between the static panel and the frame is greater than or equal to 4 mm.
[0014] Furthermore, a handle connected to the welded skeleton assembly is provided in the welded skeleton assembly.
[0015] Furthermore, the left fan assembly, the middle fan assembly, and the right fan assembly are sequentially arranged from left to right. The structures of the left fan assembly and the right fan assembly are the same as that of the middle fan assembly.
[0016] The technical requirements of this solution are as follows:
[0017] 1. The door leaf structure is a welded part. First, channel steels and I-beams are welded into a frame, and then structures such as reinforcing plates and locking sleeves are welded. After that, the inner panel and the outer panel are welded.
[0018] 2. Full welding is required between the inner panel and the welded skeleton assembly, and the weld height ≥ 5 mm; the weld height around the inner panel and the section steel is 6 mm.
[0019] 3. The outer panel is divided into a fixed panel and a movable panel. The connection between the movable panel and the section steel uses M5 bolts, and the threaded holes are made by matching, with uniform and beautiful spacing. The welds around the connection between the fixed panel and the section steel are ≥ 4 mm, and the plug weld holes in the middle are ground flat after full welding.
[0020] 4. After the door leaf is welded and assembled, the inner and outer surfaces should be flat, and the flatness tolerance and the perpendicularity tolerance of adjacent sides are both 2.5 mm.
[0021] 5. After the door leaf is formed, two coats of antirust paint should be applied to the exposed surface, and deformation should be prevented during transportation and storage.
[0022] 6. After installation, remove the lifting ring screw, plug the lifting ring bushing with a lifting ring bushing plug, and seal the opening with butter.
[0023] 7. The perpendicularity tolerance value after welding the locking sleeve to the upper and lower ends of the door leaf is 0.05 mm;
[0024] 8. When the rib plate in the locking sleeve is welded to the inner panel of the door leaf, all components of the locking system such as the lock head, connecting rod, and pin shaft should be installed in place. First, spot-weld, and then weld according to the requirements after correct adjustment.
[0025] Compared with the prior art, the general assembly of the door leaf of this civil air defense project has higher strength and protection performance, can withstand various external pressures and impact forces, greatly reduces the operation difficulty, and can also improve the evacuation speed and safety in an emergency. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a schematic structural diagram of the present invention;
[0027] Figure 2 is of the present invention Figure 1 a schematic structural diagram of the top view part in;
[0028] Figure 3 is a schematic structural diagram of the suspension support of the present invention;
[0029] Figure 4 is a schematic structural diagram on the reinforcement plate of the locking sleeve of the present invention;
[0030] Figure 5 is a schematic structural diagram of the middle fan of the present invention;
[0031] Figure 6 is of the present invention Figure 5 a partial schematic structural diagram of;
[0032] Figure 7 is of the present invention Figure 5 a partial schematic structural diagram of;
[0033] Figure 8 is of the present invention Figure 5 a partial schematic structural diagram of;
[0034] Figure 9 is of the present invention Figure 6 an enlarged schematic structural diagram of part A in;
[0035] Figure 10 is of the present invention Figure 6 an enlarged schematic structural diagram of part B in;
[0036] Figure 11Schematic diagram of the front structure of the inner panel of the present utility model;
[0037] Figure 12 Schematic diagram of the reverse structure of the inner panel of the present utility model;
[0038] Figure 13 Schematic diagram of the front structure of the outer panel of the present utility model;
[0039] Figure 14 Schematic diagram of the reverse structure of the outer panel of the present utility model.
[0040] In the figure: 1, door leaf structure; 2, middle fan assembly; 3, left fan assembly; 4, right fan assembly; 5, frame group welding; 6, outer panel; 7, inner panel; 8, hot-rolled equal-angle steel; 9, inclined steel plate; 10, straight steel plate; 11, frame; 14, upper and lower channel steels; 15, first transverse I-beam; 16, second transverse I-beam; 17, longitudinal I-beam; 18, telescopic top support channel steel; 19, suspension support; 20, locking sleeve; 21, upper locking sleeve reinforcement plate; 22, lower locking sleeve reinforcement plate; 23, guiding arc plate; 24, eyebolt sleeve; 25, static panel; 26, movable panel; 28, reducer support channel steel; 29, handle. Specific implementation manners
[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0042] Please refer to Figures 1 to 14, the present utility model provides a technical solution: a general assembly of a door leaf for a civil air defense project, including a door leaf structure 1, the door leaf structure 1 includes an intermediate fan assembly 2, a left fan assembly 3 and a right fan assembly 4. The left fan assembly 3, the intermediate fan assembly 2 and the right fan assembly 4 are arranged in sequence and are used to form the door leaf structure 1. The intermediate fan assembly 2 includes a skeleton group welding 5. The skeleton group welding 5 includes a frame 11. The frame 11 includes upper and lower channel steels 14, a first transverse I-beam 15, a second transverse I-beam 16 and a longitudinal I-beam 17. The longitudinal I-beam 17 is sequentially installed between the upper and lower channel steels 14. The first transverse I-beam 15 and the second transverse I-beam 16 are sequentially installed in the longitudinal I-beam 17. In the frame 11, there is a telescopic top support channel steel 18 connected to the longitudinal I-beam 17. Two longitudinal I-beams 17 are sequentially installed in the upper and lower channel steels 14. A reducer support channel steel 28 is installed between adjacent longitudinal I-beams 17. In the frame 11, there is a suspension support 19 connected to the top of the upper and lower channel steels 14. In the frame 11, there are a plurality of locking sleeves 20 that can be connected to the top and bottom of the upper and lower channel steels 14. In the frame 11, there is a locking sleeve reinforcing plate upper 21 that can be adapted to the locking sleeve 20 at the top of the upper and lower channel steels 14. In the frame 11, there is a locking sleeve reinforcing plate lower 22 that can be adapted to the locking sleeve 20 at the bottom of the upper and lower channel steels 14. In the frame 11, there is a guiding arc plate 23 connected to the top of the upper and lower channel steels 14. On the frame 11, there is a lifting ring stud 24 that can be connected to the top of the upper and lower channel steels 14. In the frame 11, there is an outer panel 6 connected to the frame 11. In the frame 11, there is an inner panel 7 connected to the frame 11. The inner panel 7 is welded into the frame 11. The outer panel 6 includes a static panel 25 and a movable panel 26. The movable panel 26 is installed in the frame 11 through M5 bolts. The static panel 25 is welded into the frame 11. The weld height between the inner panel 7 and the frame 11 is greater than or equal to 5 mm. The weld diameter between the static panel 25 and the frame 11 is greater than or equal to 4 mm. In the skeleton group welding 5, there is a hot-rolled equal-angle steel 8 connected to the skeleton group welding 5. In the skeleton group welding 5, there is a handle 29 connected to the skeleton group welding 5. In the hot-rolled equal-angle steel 8, there is an inclined steel plate 9 connected to the hot-rolled equal-angle steel 8. In the skeleton group welding 5, there is a straight steel plate 10 connected to the skeleton group welding 5. The left fan assembly 3, the intermediate fan assembly 2 and the right fan assembly 4 are arranged in sequence from left to right. The structures of the left fan assembly 3 and the right fan assembly 4 are the same as the structure of the intermediate fan assembly 2.
[0043] In the description of this specification, terms such as "connection", "installation", "fixation", "setting", etc. are all understood in a broad sense. For example, "connection" can be a fixed connection or indirectly through an intermediate component without affecting the relationship between components and technical effects, or it can be an integral connection or a partial connection. In the case of this example, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model or the utility model can be understood according to specific circumstances.
[0044] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.
Claims
1. The general assembly of the door leaf of a civil air defense project, including a door leaf structure (1), is characterized in that: The door leaf structure (1) includes a middle leaf assembly (2), a left leaf assembly (3), and a right leaf assembly (4). The left leaf assembly (3), the middle leaf assembly (2), and the right leaf assembly (4) are arranged in sequence and are used to form the door leaf structure (1). The middle leaf assembly (2) includes a skeleton welded assembly (5). In the skeleton welded assembly (5), there is a hot-rolled equal-angle steel (8) connected to the skeleton welded assembly (5). In the hot-rolled equal-angle steel (8), there is an inclined steel plate (9) connected to the hot-rolled equal-angle steel (8). In the skeleton welded assembly (5), there is a straight steel plate (10) connected to the skeleton welded assembly (5).
2. The general assembly of the door leaf of a civil air defense project according to claim 1, wherein: The skeleton welded assembly (5) includes a frame (11). In the frame (11), there is an outer panel (6) connected to the frame (11). In the frame (11), there is an inner panel (7) connected to the frame (11).
3. The general assembly of the door leaf of a civil air defense project according to claim 2, characterized in that: The frame (11) includes upper and lower channel steels (14), a first transverse I-beam (15), a second transverse I-beam (16), and a longitudinal I-beam (17). The longitudinal I-beam (17) is sequentially installed between the upper and lower channel steels (14). The first transverse I-beam (15) and the second transverse I-beam (16) are sequentially installed in the longitudinal I-beam (17).
4. The general assembly of the door leaf of a civil air defense project according to claim 3, characterized in that: In the frame (11), there is a telescopic top support channel steel (18) connected to the longitudinal I-beam (17). Two longitudinal I-beams (17) are sequentially installed in the upper and lower channel steels (14). A reducer support channel steel (28) is installed between adjacent longitudinal I-beams (17). In the frame (11), there is a suspension support (19) connected to the top of the upper and lower channel steels (14). In the frame (11), there are a plurality of locking sleeves (20) that can be connected to the top and bottom of the upper and lower channel steels (14).
5. The general assembly of the door leaf of a civil air defense project according to claim 4, characterized in that: In the frame (11), there is an upper locking sleeve reinforcement plate (21) that can be adapted to the locking sleeve (20) at the top of the upper and lower channel steels (14). In the frame (11), there is a lower locking sleeve reinforcement plate (22) that can be adapted to the locking sleeve (20) at the bottom of the upper and lower channel steels (14). In the frame (11), there is a guiding arc plate (23) connected to the top of the upper and lower channel steels (14). On the frame (11), there is a lifting ring stud (24) that can be connected to the top of the upper and lower channel steels (14).
6. The general assembly of the door leaf of a civil air defense project according to claim 2, characterized in that: The inner panel (7) is welded into the frame (11). The outer panel (6) includes a static panel (25) and a movable panel (26). The movable panel (26) is installed in the frame (11) by M5 bolts. The static panel (25) is welded into the frame (11).
7. The general assembly of the door leaf of a civil air defense project according to claim 6, characterized in that: The weld height between the inner panel (7) and the frame (11) is greater than or equal to 5 mm. The weld diameter between the static panel (25) and the frame (11) is greater than or equal to 4 mm.
8. The general assembly of the door leaf of a civil air defense project according to claim 1, characterized in that: In the skeleton welded assembly (5), there is a handle (29) connected to the skeleton welded assembly (5).
9. The general assembly of the door leaf of a civil air defense project according to claim 1, characterized in that: The left fan assembly (3), the middle fan assembly (2), and the right fan assembly (4) are arranged in sequence from left to right, and the structures of the left fan assembly (3) and the right fan assembly (4) are the same as that of the middle fan assembly (2).