Lightweight hollow reinforcing rib frame for civil air defense door leaf

Abstract

The utility model relates to the technical field of civil air defense door leaves, in particular to a civil air defense door leaf lightweight hollow reinforcing rib frame which comprises a civil air defense door frame, a civil air defense door body is arranged on one side of the civil air defense door frame, a first steel plate is fixedly connected to the inner side of the civil air defense door body, and first net-shaped reinforcing ribs are welded to the side face of the first steel plate. Multiple sets of connecting columns are welded to the side faces of the first net-shaped reinforcing ribs and linearly distributed on the first net-shaped reinforcing ribs, upper arc-shaped connecting strips are arranged outside the connecting columns, second threaded holes are formed in the ends of the upper arc-shaped connecting strips, and second bolts are in threaded connection with the interiors of the second threaded holes; the outer wall of the second bolt is in threaded connection with a nut, and a lower arc-shaped connecting strip is arranged below the upper arc-shaped connecting strip. According to the civil air defense door, through the hollow reinforcing rib structure, the civil air defense door body is lighter, the structure is firmer and more stable, and therefore the operation burden of a user is relieved, and operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of civil defense door technology, and in particular to a lightweight hollow reinforcing frame for civil defense door panels. Background Technology

[0002] Civil defense doors are the doors at the entrances and exits of civil defense projects. Civil defense doors are classified in a relatively clear manner, including ordinary single and double-leaf protective airtight doors and airtight doors, as well as single and double-leaf protective airtight doors and airtight doors with movable thresholds, and other types of civil defense equipment.

[0003] Currently, most existing civil defense doors have a solid reinforced concrete structure inside, which makes the overall weight of the doors very heavy and cumbersome. This makes them very difficult to open or close, and therefore inconvenient for users. Utility Model Content

[0004] In order to overcome the problem that the existing civil defense door panels are made of solid reinforced concrete, which makes them heavy and affects their use.

[0005] The technical solution of this utility model is as follows: a lightweight hollow reinforcing rib frame for a civil defense door leaf, including a civil defense door frame, a civil defense door body on one side of the civil defense door frame, multiple sets of connecting columns inside the civil defense door body, an upper arc-shaped connecting strip on the outside of the multiple sets of connecting columns, a second threaded hole at the end of the upper arc-shaped connecting strip, a second bolt threaded inside the second threaded hole, a nut threaded on the outer wall of the second bolt, a lower arc-shaped connecting strip below the upper arc-shaped connecting strip, the lower arc-shaped connecting strip has the same structure as the upper arc-shaped connecting strip and is symmetrically distributed on the connecting columns, the lower arc-shaped connecting strip is threadedly connected to the second bolt, the ends of the multiple sets of connecting columns are welded together to the side of the second mesh reinforcing rib, a second steel plate is welded to the side of the second mesh reinforcing rib away from the multiple sets of connecting columns, and the second steel plate is fixedly connected to the inner side of the civil defense door body away from the first steel plate.

[0006] Preferably, by setting a hollow reinforcing rib structure, the interior of the air-raid shelter door is welded with a first steel plate and a second steel plate. A first mesh reinforcing rib and a second mesh reinforcing rib are welded between the first and second steel plates. Multiple sets of connecting columns are welded between the first and second mesh reinforcing ribs, and these connecting columns are laterally connected by multiple sets of upper arc-shaped connecting strips and multiple sets of lower arc-shaped connecting strips. When an external force impacts, the first steel plate is impacted, transferring the impact force to the first mesh reinforcing rib. The first mesh reinforcing rib then applies the external force to the multiple sets of connecting columns. This allows the multiple sets of connecting columns to bear and sequentially transfer the external force to the second mesh reinforcing rib and the second steel plate, ensuring that all components can withstand the external force. This effectively resists the risk of external impact, giving the device strong robustness. Furthermore, the hollow internal structure of the air-raid shelter door makes it much lighter than reinforced concrete structures, resulting in a lightweight design that reduces the user's operational burden and improves ease of operation.

[0007] As a preferred embodiment, two sets of fixing blocks are welded to the side of the air defense door frame. The fixing blocks have a first threaded hole inside, and a first bolt is threaded inside the first threaded hole. An L-shaped connecting block is threaded on the outer wall of the first bolt.

[0008] Preferably, a first steel plate is fixedly connected to the inner side of the air defense door, a first mesh reinforcing rib is welded to the side of the first steel plate, and multiple sets of connecting columns are welded to the side of the first mesh reinforcing rib, with the multiple sets of connecting columns linearly distributed on the first mesh reinforcing rib.

[0009] Preferably, there are two sets of L-shaped connecting blocks, which are symmetrically distributed on the side of the fixed block, and a hinge shaft is welded between the two sets of L-shaped connecting blocks.

[0010] Preferably, a U-shaped movable block is slidably connected to the outer wall of the hinge shaft, and the U-shaped movable block is welded to the side of the air-raid shelter door.

[0011] The beneficial effects of this utility model are:

[0012] This lightweight hollow reinforced frame for civil defense doors features a hollow reinforced structure. The interior of the door body is welded with a first steel plate and a second steel plate. Between these two plates are first and second mesh-like reinforcing ribs. Multiple sets of connecting columns are welded between these ribs, and these connecting columns are horizontally connected by multiple sets of upper and lower arc-shaped connecting strips. When an external force impacts the door, the first steel plate receives the impact and transfers the force to the first mesh-like reinforcing ribs, which then transfer the force to the connecting columns. This allows the connecting columns to bear and sequentially transmit the force to the second mesh-like reinforcing ribs and the second steel plate, ensuring that all components can withstand the external force. This effectively resists the risk of impact, giving the device strong robustness. Furthermore, the hollow internal structure of the door body makes it much lighter than reinforced concrete structures, resulting in a lightweight design that reduces the user's workload and improves ease of operation. Attached Figure Description

[0013] Figure 1 The image shown is a three-dimensional front view of a lightweight hollow reinforced frame for a civil defense door leaf according to this utility model.

[0014] Figure 2 The diagram shown is an exploded view of the hinge mechanism of a lightweight hollow reinforced frame for a civil defense door leaf according to this utility model.

[0015] Figure 3 The image shown is a cross-sectional view of a lightweight hollow reinforced frame for a civil defense door, according to this utility model.

[0016] Figure 4 The diagram shown is an exploded view of the internal structure of a lightweight hollow reinforced frame for a civil defense door, according to this utility model.

[0017] Figure 5 The diagram shown is a split view of the connection structure between the upper and lower arc-shaped connecting strips of a lightweight hollow reinforcing frame for a civil defense door leaf according to this utility model.

[0018] Figure 6 The image shown is a three-dimensional rear view of the lightweight hollow reinforced frame of a civil defense door leaf according to this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Air raid shelter door frame; 2. Fixing block; 3. First threaded hole; 4. First bolt; 5. L-shaped connecting block; 6. Hinge shaft; 7. U-shaped movable block; 8. Air raid shelter door body; 9. First steel plate; 10. First mesh reinforcing rib; 11. Connecting column; 12. Upper arc-shaped connecting strip; 13. Second threaded hole; 14. Second bolt; 15. Nut; 16. Lower arc-shaped connecting strip; 17. Second mesh reinforcing rib; 18. Second steel plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-6 This utility model provides an embodiment: a lightweight hollow reinforced frame for a civil defense door leaf, including a civil defense door frame 1, a civil defense door body 8 on one side of the civil defense door frame 1, multiple sets of connecting columns 11 inside the civil defense door body 8, upper arc-shaped connecting strips 12 outside the multiple sets of connecting columns 11, a second threaded hole 13 at the end of the upper arc-shaped connecting strip 12, a second bolt 14 threaded inside the second threaded hole 13, a nut 15 threaded on the outer wall of the second bolt 14, a lower arc-shaped connecting strip 16 below the upper arc-shaped connecting strip 12, the lower arc-shaped connecting strip 16 having the same structure as the upper arc-shaped connecting strip 12 and symmetrically distributed on the connecting columns 11, the lower arc-shaped connecting strip 16 threadedly connected to the second bolt 14, the ends of the multiple sets of connecting columns 11 are welded together to the side of a second mesh reinforcing rib 17, the second mesh reinforcing rib 17 being away from the multiple sets of connecting columns. A second steel plate 18 is welded to the side of the 11. The second steel plate 18 is fixedly connected to the inner side of the air-raid shelter door 8 away from the first steel plate 9. The air-raid shelter door frame 1 embeds the air-raid shelter door 8 into it, and the air-raid shelter door 8 plays a protective role. The first steel plate 9 is used to fix the first mesh reinforcing rib 10. The first mesh reinforcing rib 10 is a mesh reinforcing rib structure with strong impact resistance and firmness. The upper arc-shaped connecting strip 12 and the lower arc-shaped connecting strip 16 are connected together, which can fix multiple sets of connecting columns 11 together, so that multiple sets of connecting columns 11 can be connected and fixed laterally. The second bolt 14 is used to connect the second threaded hole 13, so that the upper arc-shaped connecting strip 12 and the lower arc-shaped connecting strip 16 can be connected together. The second steel plate 18 is used to fix the second mesh reinforcing rib 17. The second mesh reinforcing rib 17 is a mesh reinforcing rib structure with strong impact resistance and firmness.

[0022] Please see Figure 2In this embodiment, two sets of fixing blocks 2 are welded to the side of the air-raid shelter door frame 1. The fixing blocks 2 have first threaded holes 3 inside, and first bolts 4 are threadedly connected inside the first threaded holes 3. L-shaped connecting blocks 5 are threadedly connected to the outer wall of the first bolts 4. There are two sets of L-shaped connecting blocks 5, which are symmetrically distributed on the side of the fixing blocks 2. A hinge shaft 6 is welded between the two sets of L-shaped connecting blocks 5. A U-shaped movable block 7 is slidably connected to the outer wall of the hinge shaft 6. The U-shaped movable block 7 is welded to the side of the air-raid shelter door body 8. The fixing blocks 2 are used to open multiple sets of first threaded holes 3. The first threaded holes 3 allow the first bolts 4 to be threadedly connected inside them. The first bolts 4 can fix the L-shaped connecting blocks 5 to the side of the fixing blocks 2. The two sets of L-shaped connecting blocks 5 are used to fix the hinge shaft 6. The hinge shaft 6 allows the U-shaped movable block 7 to rotate on its outer wall. This allows the air-raid shelter door body 8 fixed by the U-shaped movable block 7 to rotate, thereby allowing the air-raid shelter door body 8 to be opened and closed.

[0023] Please see Figure 4 In this embodiment, a first steel plate 9 is fixedly connected to the inner side of the air defense door 8. A first mesh reinforcing rib 10 is welded to the side of the first steel plate 9. Multiple sets of connecting posts 11 are welded to the side of the first mesh reinforcing rib 10. The multiple sets of connecting posts 11 are linearly distributed on the first mesh reinforcing rib 10. The multiple sets of connecting posts 11 are used to fix the first mesh reinforcing rib 10 and the second mesh reinforcing rib 17, thereby improving the resistance between the first mesh reinforcing rib 10 and the second mesh reinforcing rib 17.

[0024] By setting a hollow reinforcing rib structure, the interior of the air-raid shelter door 8 is welded with a first steel plate 9 and a second steel plate 18. A first mesh reinforcing rib 10 and a second mesh reinforcing rib 17 are welded between the first steel plate 9 and the second steel plate 18. Multiple sets of connecting posts 11 are welded between the first mesh reinforcing rib 10 and the second mesh reinforcing rib 17. These multiple sets of connecting posts 11 are then fixedly connected by multiple sets of upper arc-shaped connecting strips 12 and multiple sets of lower arc-shaped connecting strips 16. Thus, when an external force impacts, the first steel plate 9 receives the impact force and transfers it to the first mesh reinforcing rib 10. A mesh reinforcing rib 10 applies external force to multiple sets of connecting columns 11, allowing the connecting columns 11 to bear and sequentially transfer the external force to the second mesh reinforcing rib 17 and the second steel plate 18. This ensures that all components can withstand external forces, effectively resisting the risk of external impacts and giving the device strong robustness. Furthermore, the interior of the air-raid shelter door 8 is a hollow structure, making it much lighter than reinforced concrete structures. This lightweight design reduces the user's workload and improves ease of operation.

[0025] Through the above steps, the hollow reinforced rib structure makes the air defense door 8 lighter, more robust and stable, thereby reducing the user's operating burden and improving the ease of operation. This solves the problem that the existing air defense door panels are made of solid reinforced concrete, which makes them too heavy and affects their use.

Claims

1. A lightweight hollow reinforced frame for a civil defense door leaf, comprising a civil defense door frame (1), characterized in that: A civil defense door frame (1) has a civil defense door body (8) on one side. The civil defense door body (8) has multiple sets of connecting columns (11) inside. The upper arc-shaped connecting strip (12) is provided on the outside of the multiple sets of connecting columns (11). The end of the upper arc-shaped connecting strip (12) is provided with a second threaded hole (13). The second threaded hole (13) is threaded with a second bolt (14). The outer wall of the second bolt (14) is threaded with a nut (15). The lower arc-shaped connecting strip (15) is provided below the upper arc-shaped connecting strip (12). 6) The lower arc-shaped connecting strip (16) has the same structure as the upper arc-shaped connecting strip (12) and is symmetrically distributed on the connecting column (11). The lower arc-shaped connecting strip (16) is threadedly connected to the second bolt (14). The ends of multiple sets of connecting columns (11) are welded together to the side of the second mesh reinforcing rib (17). The side of the second mesh reinforcing rib (17) away from the multiple sets of connecting columns (11) is welded with a second steel plate (18). The second steel plate (18) is fixedly connected to the inner side of the air defense door body (8) away from the first steel plate (9).

2. The lightweight hollow reinforcing frame for a civil defense door leaf according to claim 1, characterized in that: Two sets of fixing blocks (2) are welded to the side of the civil defense door frame (1). The fixing block (2) has a first threaded hole (3) inside. The first threaded hole (3) is threaded with a first bolt (4) inside. The outer wall of the first bolt (4) is threaded with an L-shaped connecting block (5).

3. The lightweight hollow reinforcing frame for a civil defense door leaf according to claim 2, characterized in that: The inner side of the air defense door (8) is fixedly connected to a first steel plate (9), and the side of the first steel plate (9) is welded with a first mesh reinforcing rib (10). The side of the first mesh reinforcing rib (10) is welded with multiple sets of connecting columns (11), and the multiple sets of connecting columns (11) are linearly distributed on the first mesh reinforcing rib (10).

4. The lightweight hollow reinforcing frame for a civil defense door leaf according to claim 3, characterized in that: There are two sets of L-shaped connecting blocks (5). The two sets of L-shaped connecting blocks (5) are symmetrically distributed on the side of the fixed block (2). A hinge shaft (6) is welded between the two sets of L-shaped connecting blocks (5).

5. The lightweight hollow reinforcing frame for a civil defense door leaf according to claim 4, characterized in that: The outer wall of the hinge (6) is slidably connected to a U-shaped movable block (7), which is welded to the side of the air defense door (8).

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