Modularly assembled steel structure civil air defense door

Abstract

The utility model discloses a modular assembly type steel structure civil air defence door relates to steel structure civil air defence door technical field, including steel strip, the inside splicing of steel strip has series connection muscle, the side edge of steel strip swing sleeve joint has frame no.

Description

Technical Field

[0001] This utility model relates to the field of steel structure air defense door technology, and in particular to a modular assembled steel structure air defense door. Background Technology

[0002] Steel structure air-raid shelter doors are key protective equipment used in civil defense projects. They have functions such as explosion-proof, fireproof, and toxic gas protection, and are typically installed in air-raid shelters, subway tunnels, military facilities, and other similar locations. Their core characteristics are high structural strength, good sealing performance, and strong impact resistance.

[0003] Currently, steel structure air defense doors are made of one piece, which not only makes the door too heavy and difficult to transport and install, but also means that if the door leaf is deformed in an impact, it cannot be replaced locally and must be replaced as a whole, resulting in extremely high maintenance costs and reduced performance of the steel structure air defense door. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a modular, assembled steel structure air-raid shelter door. Its advantages include multiple sets of steel bars sequentially interlaced from top to bottom around the connecting ribs; additionally, frame one and frame two finish the edges of the door leaf assembled from the steel bars; and frame one and frame two are firmly joined, thereby improving the robustness of the modular assembled door leaf. This modular, assembled steel structure air-raid shelter door is convenient for transportation and installation, and if the door leaf is deformed in an impact, it can be partially replaced, improving its practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A modular, assembled steel structure air-raid shelter door includes steel bars with internal connecting ribs. A first frame is movably sleeved on the side of the steel bar. The upper and lower ends of the first frame are movably connected to the second frame. The inner cavity of the second frame is movably connected to one end of the steel bar. The upper and lower ends of the first frame are fixedly connected to protrusions. A limit post is inserted into the center of the protrusion. An adjustment frame is fixedly connected to the other end of the limit post. A connecting post is fixedly connected to the other end of the adjustment frame.

[0007] The above technical solution involves multiple sets of steel bars sequentially inserted from top to bottom outside the connecting ribs. In addition, frame one and frame two finish the edges of the door leaf composed of steel bars. Furthermore, frame one and frame two are firmly connected, thereby improving the robustness of the modular assembled door leaf. This modular assembled steel structure air defense door is convenient for transportation and installation. Moreover, if the door leaf of the steel structure air defense door is deformed in an impact, it can be partially replaced, improving its practicality.

[0008] The present invention is further configured such that a sliding frame is fixedly connected to the other end of the connecting column, and sliding grooves adapted to the sliding frame are provided on both sides of the second frame, and the surfaces of the sliding frame and the sliding grooves are treated with wear resistance.

[0009] The above technical solutions play a crucial role in ensuring the stability of the sliding frame adjustment.

[0010] The present invention is further configured such that a lead screw is fixedly connected to the inner cavity of the slide groove, the outer wall of the lead screw is movably connected to the inner wall of the sliding frame, and a spring is movably sleeved at the other end of the lead screw.

[0011] Through the above technical solution: the sliding frame moves around the lead screw, which can compress the spring, thereby driving the connecting column and the adjusting frame to move in the contraction direction until the limiting column disengages from the protrusion. Therefore, it is convenient to disassemble and assemble frame one and frame two, which is beneficial for transportation and installation.

[0012] The present invention is further provided that both sides of the sliding frame are provided with circular grooves adapted to the lead screw, and the surface of the circular groove in contact with the lead screw is treated with wear resistance.

[0013] The above technical solutions play a crucial role in ensuring the stability of the sliding frame's displacement outside the lead screw.

[0014] The present invention is further configured such that through grooves adapted to the adjustment bracket and the protrusion are provided on both sides of the second frame, and the surfaces of the protrusion and the adjustment bracket that contact the through groove are treated with wear resistance.

[0015] Through the above technical solution: the protrusion is placed into the through groove set in the second frame, and then the adjustment bracket is connected with the protrusion. The limiting post is inserted to lock the position of the protrusion. The combination of the first and second frames limits the assembled steel strip, thereby ensuring the sturdiness of the door assembly.

[0016] The present invention is further provided that both sides of the second frame are provided with through grooves adapted to the connecting post, and the surface of the through groove in contact with the connecting post is treated with wear resistance.

[0017] Through the above technical solutions: the connecting column adjusts and stabilizes, thus achieving the purpose of series connection, and the adjusting frame moves synchronously with the sliding frame.

[0018] The present invention is further provided that the center of the protrusion is provided with a limiting groove that is adapted to the limiting post, and the surface of the limiting groove that contacts the limiting post is treated with wear resistance.

[0019] Through the above technical solutions: the limiting post adjusts the displacement stably, can accurately align with the protrusion, and facilitates the disassembly and assembly of frame one and frame two.

[0020] The present invention is further configured such that a door frame is movably connected to the outer edges of both the first and second side frames, and a pivot is rotatably connected to the matching parts of the door frame and the second side frame.

[0021] Through the above technical solutions, the modular assembled steel structure air defense door is easy to open and close.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. This modular assembled steel structure air-raid shelter door features multiple sets of steel bars inserted sequentially from top to bottom outside the connecting reinforcement. Furthermore, frame one and frame two finish the edges of the door leaf composed of these steel bars. Frame one and frame two are also securely joined, thus enhancing the robustness of the modular assembled door leaf. This modular assembled steel structure air-raid shelter door is convenient for transportation and installation. Additionally, if the door leaf is deformed during an impact, it can be partially replaced, improving its practicality.

[0024] 2. This modular, assembled steel structure air-raid shelter door, by incorporating protrusions, connecting ribs, limiting posts, adjusting frames, connecting posts, threaded rods, sliding frames, and springs, effectively strengthens the structural integrity of frame one and frame two combined with the steel bars. Frame one and frame two can be disassembled and assembled according to actual needs, improving operational flexibility. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a modular, assembled steel structure air-raid shelter door proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the frame and steel strip structure of a modular assembled steel structure air-raid shelter door proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the frame structure of a modular assembled steel structure air defense door proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the limiting mechanism structure of a modular assembled steel structure air defense door proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the steel bars and connecting ribs of a modular assembled steel structure air defense door proposed in this utility model.

[0030] In the diagram: 1. Steel bar; 2. Frame 1; 3. Frame 2; 4. Door frame; 5. Pivot; 6. Protrusion; 7. Connecting rib; 8. Limiting post; 9. Adjusting frame; 10. Connecting post; 11. Lead screw; 12. Sliding frame; 13. Spring; 14. Through groove; 15. Slide groove. Detailed Implementation

[0031] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0032] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0033] Reference Figure 1-5 A modular, assembled steel structure air-raid shelter door includes steel bars 1, with connecting ribs 7 inserted inside the steel bars 1. A first frame 2 is movably sleeved on the side of the steel bars 1. A second frame 3 is movably connected to both the upper and lower ends of the first frame 2. The inner cavity of the second frame 3 is movably connected to one end of the steel bars 1. A protrusion 6 is fixedly connected to both the upper and lower ends of the first frame 2. A limiting post 8 is inserted into the center of the protrusion 6. An adjusting frame 9 is fixedly connected to the other end of the limiting post 8. A connecting post 10 is fixedly connected to the other end of the adjusting frame 9. Multiple sets of steel bars 1 are sequentially inserted from top to bottom outside the connecting ribs 7. Furthermore, the first frame 2 and the second frame 3 finish the edges of the door leaf assembled from the steel bars 1. The first frame 2 and the second frame 3 are firmly joined, thereby improving the robustness of the modular assembled door leaf. This modular, assembled steel structure air-raid shelter door is convenient for transportation and installation. If the door leaf is deformed in an impact, it can be partially replaced, improving its practicality.

[0034] In this embodiment, a sliding frame 12 is fixedly connected to the other end of the connecting column 10. Slide grooves 15 adapted to the sliding frame 12 are provided on both sides of the frame 2 3. The surfaces of the sliding frame 12 and the slide grooves 15 are treated with wear-resistant materials, which plays a crucial role in adjusting the stability of the sliding frame 12.

[0035] Furthermore, a lead screw 11 is fixedly connected to the inner cavity of the slide groove 15. The outer wall of the lead screw 11 is movably connected to the inner wall of the sliding frame 12. A spring 13 is movably sleeved at the other end of the lead screw 11. The sliding frame 12 moves around the lead screw 11, which can compress the spring 13, thereby driving the connecting column 10 and the adjusting frame 9 to move in the contraction direction until the limiting column 8 disengages from the protrusion 6. Therefore, it is convenient to disassemble and assemble the first frame 2 and the second frame 3, which is beneficial for transportation and installation.

[0036] Both sides of the sliding frame 12 are provided with circular grooves that are adapted to the lead screw 11. The surface of the circular groove that contacts the lead screw 11 is treated with wear resistance, which plays a crucial role in stabilizing the displacement of the sliding frame 12 outside the lead screw 11.

[0037] Both sides of frame 2 3 are provided with through grooves 14 that are adapted to the adjusting bracket 9 and the protrusion 6. The surfaces of the protrusion 6 and the adjusting bracket 9 that contact the through grooves 14 are treated with wear resistance. The protrusion 6 is placed into the through groove 14 of frame 2 3, and then the adjusting bracket 9 is connected to the protrusion 6. The limiting post 8 is inserted to lock the position of the protrusion 6. The combination of frame 1 2 and frame 2 3 limits the assembled steel strip 1, thereby ensuring the sturdiness of the door panel assembly. Both sides of frame 2 3 are provided with through grooves that are adapted to the connecting post 10. The surfaces of the through grooves that contact the connecting post 10 are treated with wear resistance. The connecting post 10 is adjusted and stabilized to play the role of connecting the components. The adjusting bracket 9 moves synchronously with the sliding bracket 12.

[0038] It is worth mentioning that the center of the protrusion 6 is provided with a limiting groove that matches the limiting post 8. The surface of the limiting groove that contacts the limiting post 8 is treated with wear resistance. The limiting post 8 can be adjusted to be stable and can be accurately aligned with the protrusion 6, which facilitates the disassembly and assembly of frame 1 2 and frame 2 3. The outer edges of frame 1 2 and frame 2 3 are movably connected to door frame 4. The matching parts of door frame 4 and frame 2 3 are rotatably connected to pivot 5. This modular assembled steel structure air defense door is easy to open and close.

[0039] Working principle: Multiple sets of steel bars 1 are inserted sequentially from top to bottom outside the connecting ribs 7. In addition, frame 1 2 and frame 2 3 finish the edges of the door leaf composed of steel bars 1. The protrusion 6 set in frame 1 2 is placed into the through groove 14 set in frame 2 3. Because the spring 13 has elasticity, when the spring 13 extends, it can displace the sliding frame 12 outward, thereby driving the connecting column 10 and the adjusting frame 9 to move in the extension direction until the limiting column 8 is inserted into the protrusion 6. When the sliding frame 12 moves inward around the screw 11, it can compress the spring 13, thereby driving the connecting column 10 and the adjusting frame 9 to move in the contraction direction until the limiting column 8 is disengaged from the protrusion 6. Therefore, it is convenient to disassemble and assemble frame 1 2 and frame 2 3.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular assembled steel structure civil defense door comprising a steel bar (1), characterized in that, The steel bar (1) is internally connected with a series rib (7), and the side of the steel bar (1) is movably sleeved with a frame one (2). The upper and lower ends of the frame one (2) are movably connected with a frame two (3). The inner cavity of the frame two (3) is movably connected to one end of the steel bar (1). The upper and lower ends of the frame one (2) are fixedly connected with a protrusion (6). The center of the protrusion (6) is inserted with a limiting post (8). The other end of the limiting post (8) is fixedly connected with an adjusting frame (9). The other end of the adjusting frame (9) is fixedly connected with a connecting post (10).

2. The modular assembled steel structure air-raid shelter door according to claim 1, characterized in that, The other end of the connecting column (10) is fixedly connected to a sliding frame (12). Both sides of the frame (3) are provided with sliding grooves (15) that are adapted to the sliding frame (12). The surfaces of the sliding frame (12) and the sliding grooves (15) are treated with wear resistance.

3. A modular, assembled steel structure air-raid shelter door according to claim 2, characterized in that, The inner cavity of the slide (15) is fixedly connected to a lead screw (11), the outer wall of the lead screw (11) is movably connected to the inner wall of the sliding frame (12), and the other end of the lead screw (11) is movably sleeved with a spring (13).

4. A modular, assembled steel structure air-raid shelter door according to claim 2, characterized in that, Both sides of the sliding frame (12) are provided with circular grooves that are adapted to the lead screw (11), and the surface of the circular groove that contacts the lead screw (11) is treated with wear resistance.

5. A modular, assembled steel structure air-raid shelter door according to claim 1, characterized in that, Both sides of the second frame (3) are provided with through grooves (14) that are adapted to the adjustment frame (9) and the protrusion (6). The surfaces of the protrusion (6) and the adjustment frame (9) that contact the through grooves (14) are treated with wear resistance.

6. A modular, assembled steel structure air-raid shelter door according to claim 1, characterized in that, Both sides of the second frame (3) are provided with through grooves that are adapted to the connecting post (10). The surface of the through groove that contacts the connecting post (10) is treated with wear resistance.

7. A modular, assembled steel structure air-raid shelter door according to claim 1, characterized in that, The center of the protrusion (6) is provided with a limiting groove that is adapted to the limiting post (8), and the surface of the limiting groove that contacts the limiting post (8) is treated with wear resistance.

8. A modular, assembled steel structure air-raid shelter door according to claim 7, characterized in that, Both the outer edges of the first (2) and the second (3) are movably connected to a door frame (4), and the matching parts of the door frame (4) and the second (3) are rotatably connected to a pivot (5).

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