A ballistic shelter structure

Abstract

The utility model relates to square cabin technical field, and disclose a kind of bulletproof square cabin structure, the rear side top of square cabin body is equipped with climbing assembly, the rear side bottom of square cabin body is equipped with limiting assembly;Bulletproof steel plate, outer corner piece, corner and connecting beam are connected by bolt, so that connection is more firm, and bulletproof steel plate does not need to be welded, ensure that the crystal structure stability inside steel plate, the bulletproof performance of bulletproof steel plate is unchanged, since bulletproof steel plate and connecting beam are first bolted and then welded with framework, it is guaranteed that bolt hole position will not be deformed misplacement due to framework and connecting beam welding;While the inside of bulletproof steel plate is sprayed polyurea coating, can play the role of energy absorption, buffering, blocking bullet or fragment after bulletproof steel plate is broken down, also can play the role of rust prevention and heat insulation, and by pasting flame-retardant aerogel felt, can play the role of flame-retardant, heat insulation, inner corner piece, inner skin and framework are riveted with rivet, installation tolerance is big, and it is convenient and fast to construct, and installation is firm.

Description

Technical Field

[0001] This utility model relates to the field of modular shelter technology, specifically a bulletproof modular shelter structure. Background Technology

[0002] In today's era, when dealing with emergencies, the armed police and public security forces must not only crack down on dangerous elements, but also protect the safety of their accompanying personnel. Therefore, the special vehicles used by the accompanying logistics personnel, such as command vehicles, communication vehicles, ambulances, cooking vehicles, and camping vehicles, must have a certain degree of bulletproof capability.

[0003] Traditional bulletproof steel plates are typically fixed to a frame by direct welding. However, the high temperatures involved in welding cause phase changes in the internal crystal structure of the steel plate, significantly reducing its ballistic resistance. Furthermore, welding deformation of the frame can easily lead to misalignment of pre-drilled bolt holes, necessitating subsequent hole enlargement or repair welding for correction. This affects structural strength and increases labor costs. Additionally, traditional ladders are usually fixed structures at a certain height from the ground, failing to meet the needs of different personnel. Therefore, a bulletproof shelter structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a bulletproof shelter structure to address the problem mentioned in the background art where traditional bulletproof steel plates are typically fixed to a frame by direct welding. This process is problematic because the high temperatures during welding cause phase changes in the internal crystal structure of the steel plate, significantly reducing the material's ballistic performance. Furthermore, welding deformation of the frame can easily lead to misalignment of pre-drilled bolt holes, forcing subsequent hole enlargement or repair welding corrections, which affects structural strength and increases labor costs. Additionally, traditional ladders are usually fixed structures, located at a certain height above the ground, which cannot meet the needs of different personnel.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bulletproof shelter structure, comprising a shelter body, wherein a plurality of bulletproof steel plates are installed on the outer side of the shelter body, a connecting beam is installed on the inner side of two adjacent bulletproof steel plates, and the inner side of the plurality of bulletproof steel plates is coated with a polyurea coating, and a frame is welded to both sides of the connecting beam away from the bulletproof steel plates, one side of the frame is attached to the outer side of the polyurea coating, and a flame-retardant gel felt is filled between the side of the polyurea coating away from the bulletproof steel plates and the frame and connecting beam, an inner skin is installed on the outer side of the flame-retardant gel felt and the frame, an outer corner piece is installed on the outer side of two adjacent bulletproof steel plates, a corner protector is installed on the outer side of the outer corner piece, an inner corner piece is installed at the corner of the inner skin, a climbing component is installed on the rear top of the shelter body, and a limiting component is installed on the rear bottom of the shelter body.

[0006] Preferably, a nut is welded to the inner side of the connecting beam, and bolts are sequentially inserted through the corner protector, outer corner piece, bulletproof steel plate, and one side of the connecting beam, with one end of the bolt connected to the inside of the nut by a thread.

[0007] Preferably, rivets are installed between the inner corner piece, the inner skin, and the frame.

[0008] Preferably, the climbing assembly includes a fixed base, a connecting shaft, and a first ladder frame. The fixed base is fixedly connected to the main body of the container, the connecting shaft is fixedly connected to the inner side of the fixed base, one end of the first ladder frame is rotatably connected to the outer side of the connecting shaft, the other end of the first ladder frame is hinged to a U-shaped frame, and one end of the U-shaped frame is hinged to a second ladder frame.

[0009] Preferably, the aforementioned limiting assembly includes a connecting seat, a fixed shaft, and a rotating frame. The connecting seat is fixedly connected to the rear bottom of the container body, the fixed shaft is fixedly connected to the inner side of the connecting seat, the rotating frame is movably sleeved on the outer side of the fixed shaft, a rotating cylinder is rotatably connected to the top side of the rotating frame, a threaded post is threadedly connected to the inner side of the rotating cylinder, one end of the threaded post passes through the top of the rotating frame, and a limiting post is provided at one end of the threaded post.

[0010] Preferably, a column is fixedly sleeved on the outer side of the aforementioned fixed shaft, which is located on the inner side of the rotating frame, and one end of the threaded column abuts against the outer side of the column.

[0011] Preferably, a turntable is fixedly sleeved on the outer side of the aforementioned rotating drum.

[0012] Preferably, the top of the aforementioned rotating frame is fixedly connected to a rotating ring on the outside of the rotating cylinder, and a fixing bolt is threadedly connected to the outside of the rotating ring, with one end of the fixing bolt abutting against the outside of the rotating cylinder.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: 1. This utility model connects the bulletproof steel plate, outer corner pieces, corner protectors, and connecting beams with bolts, making the connection more secure. Furthermore, the bulletproof steel plate requires no welding, ensuring the stability of its internal crystalline structure and maintaining its bulletproof performance. Because the bulletproof steel plate and connecting beams are first bolted together before welding to the frame, the bolt hole positions are guaranteed not to deform or misalign due to welding between the frame and connecting beams. Simultaneously, the inner side of the bulletproof steel plate is coated with a polyurea layer, which absorbs energy, buffers, and blocks bullets or fragments after penetrating the plate, while also providing rust prevention and heat insulation. Additionally, the application of flame-retardant gel felt provides flame retardancy and heat insulation. The inner corner pieces, inner skin, and frame are riveted together, allowing for large installation tolerances, convenient and quick construction, and secure installation.

[0014] 2. This utility model uses a counter-rotating turntable to drive a rotating cylinder to rotate on a rotating frame. The rotating frame can move one end of the threaded column upward, causing the limiting post at one end of the threaded column to disengage from the first ladder frame. Then, the rotating frame is flipped to move the limiting post away from the outside of the first ladder frame, allowing the first and second ladder frames to be unfolded and used. The operation is simple and convenient, meeting the needs of different users. Moreover, when storing, the second ladder frame is first folded inside the first ladder frame, and then the rotating frame is rotated 90 degrees. The forward rotation of the rotating cylinder drives the threaded column to move, causing one end of the threaded column to abut against the outside of the column body, thus limiting the angle of the rotating frame. At the same time, the other end of the threaded column drives the limiting post to abut against the outside of the first ladder frame, thus completing the limiting of the first ladder frame. This completes the storage of the first and second ladder frames, saving time and effort. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of the modular container of this utility model; Figure 2 For the present utility model Figure 1 Schematic diagram of the cross-sectional structure at point AA; Figure 3 This is a schematic diagram of the connecting beam structure of this utility model; Figure 4 This is a schematic diagram of the first ladder frame structure of this utility model; Figure 5 This is a schematic diagram of the U-shaped frame structure of this utility model; Figure 6 For the present utility model Figure 5 Enlarged structural diagram of area A in the middle; Figure 7 This is a schematic diagram of the unfolded structure of the first and second ladder frames of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Bulletproof steel plate; 2. Polyurea coating; 3. Flame-retardant gel felt; 4. Frame; 5. Outer corner piece; 6. Corner protector; 7. Connecting beam; 8. Nut; 9. Bolt; 10. Rivet; 11. Inner corner piece; 12. Inner skin; 13. Fixing seat; 14. Connecting shaft; 15. First ladder frame; 16. U-shaped frame; 17. Second ladder frame; 18. Connecting seat; 19. Fixing shaft; 20. Rotating frame; 21. Column; 22. Rotating cylinder; 23. Threaded column; 24. Limiting column; 25. Turntable. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0020] Example Please see Figure 1-7 This utility model provides a technical solution: a bulletproof shelter structure, including a shelter body, with a plurality of bulletproof steel plates 1 installed on the outer side of the shelter body, and a connecting beam 7 installed on the inner side of two adjacent bulletproof steel plates 1. The inner sides of the plurality of bulletproof steel plates 1 are all coated with a polyurea coating 2. A frame 4 is welded to both sides of the connecting beam 7 away from the bulletproof steel plates 1. One side of the frame 4 is attached to the outer side of the polyurea coating 2. A flame-retardant gel felt 3 is filled between the side of the polyurea coating 2 away from the bulletproof steel plates 1 and the frame 4 and the connecting beam 7. A flame-retardant gel felt 3 and the outer side of the frame 4 are installed with... The inner skin 12 has outer corner pieces 5 installed on the outer sides of two adjacent bulletproof steel plates 1, and corner protectors 6 installed on the outer sides of the outer corner pieces 5. Inner corner pieces 11 are installed at the corners of the inner skin 12. At the same time, the inner side of the bulletproof steel plate 1 is sprayed with a polyurea coating 2 with a thickness of about 8mm, which can absorb energy, buffer and block bullets or fragments after penetrating the bulletproof steel plate 1, and also play a role in rust prevention and heat insulation. Furthermore, by attaching a flame-retardant gel felt 3, it can play a role in flame retardancy and heat insulation. A climbing component is installed on the rear top of the container body, and a limit component is installed on the rear bottom of the container body.

[0021] Nuts 8 are welded to the inner side of the connecting beam 7. Bolts 9 pass through the corner protector 6, outer corner piece 5, bulletproof steel plate 1, and one side of the connecting beam 7 in sequence. One end of the bolt 9 is threaded into the inside of the nut 8. The bulletproof steel plate 1, outer corner piece 5, corner protector 6, and connecting beam 7 are connected by the bolts 9, making the connection more secure. Moreover, the bulletproof steel plate 1 does not need to be welded, ensuring the stability of the internal crystal structure of the steel plate and the bulletproof performance of the bulletproof steel plate 1 remains unchanged. Since the bulletproof steel plate 1 is first bolted to the connecting beam 7 and then welded to the frame 4, it is ensured that the bolt hole position will not be deformed or misaligned due to the welding of the frame 4 and the connecting beam 7. Rivets 10 are installed between the inner corner piece 11, the inner skin 12 and the frame 4. The inner corner piece 12, the inner skin 11 and the frame 4 are riveted together with rivets 10. The installation tolerance is large, the construction is convenient and quick, and the installation is firm.

[0022] To accommodate different users, the climbing assembly includes a fixed base 13, a connecting shaft 14, and a first ladder 15. The fixed base 13 is fixedly connected to the main body of the cabin, and the connecting shaft 14 is fixedly connected to the inner side of the fixed base 13. One end of the first ladder 15 is rotatably connected to the outer side of the connecting shaft 14, and the other end of the first ladder 15 is hinged to a U-shaped frame 16. One end of the U-shaped frame 16 is hinged to a second ladder 17. By pulling the first ladder 15 to flip it over, the first ladder 15 rotates around the connecting shaft 14, causing the first ladder 15 to pull the second ladder 17 away from the outside of the cabin. Then, the second ladder 17 is rotated to unfold it, and one end of the second ladder 17 is placed against the ground, allowing the first ladder 15 and the second ladder 17 to be used. When not in use, by pushing the first ladder 15 to rotate around the connecting shaft 14, the second ladder 17 is folded inside the first ladder 15 and then placed against the outside of the cabin, which is then fixed by the limiting assembly.

[0023] To facilitate the storage and securing of the climbing components, the limiting assembly includes a connecting seat 18, a fixed shaft 19, and a rotating frame 20. The connecting seat 18 is fixedly connected to the rear bottom of the container body, the fixed shaft 19 is fixedly connected to the inner side of the connecting seat 18, and the rotating frame 20 is movably sleeved on the outer side of the fixed shaft 19. A rotating cylinder 22 is rotatably connected to the top side of the rotating frame 20, and a threaded post 23 is threadedly connected to the inner side of the rotating cylinder 22. One end of the threaded post 23 passes through the top of the rotating frame 20, and a limiting post 24 is provided at one end of the threaded post 23. The outer side of the fixed shaft 19... A column 21 is fixedly sleeved on the inner side of the rotating frame 20, and one end of the threaded column 23 abuts against the outer side of the column 21. A turntable 25 is fixedly sleeved on the outer side of the rotating cylinder 22. Before unfolding, by rotating the turntable 25 in the opposite direction, the turntable 25 drives the rotating cylinder 22 to rotate on the rotating frame 20. The rotating frame 20 can drive one end of the threaded column 23 to move upward, so that the limiting post 24 at one end of the threaded column 23 is disengaged from the first ladder frame 15. Then, the rotating frame 20 is flipped to drive the limiting post 24 to disengage from the outer side of the first ladder frame 15, so that the first ladder frame 15 can be pulled to flip. After the second ladder 17 is folded, the rotating frame 20 is pushed to rotate to a horizontal position. At this time, the limiting post 24 moves to the outside of the first ladder 15. By rotating the rotating cylinder 22 in the forward direction, the rotating cylinder 22 drives the threaded post 23 to move, so that one end of the threaded post 23 abuts against the outside of the post 21, which limits the angle of the rotating frame 20. At the same time, the other end of the threaded post 23 drives the limiting post 24 to abut against the outside of the first ladder 15, which completes the limiting of the first ladder 15. Thus, the storage of the first ladder 15 and the second ladder 17 is completed, saving time and effort.

[0024] To prevent the rotating drum 22 from shifting the threaded post 23 and improve the stability of the climbing assembly, a rotating ring is fixedly connected to the top of the rotating frame 20 on the outside of the rotating drum 22. A fixing bolt is threadedly connected to the outside of the rotating ring, and one end of the fixing bolt abuts against the outside of the rotating drum 22. After fixing, the rotating drum 22 is fixed by turning the fixing bolt so that one end of the fixing bolt abuts against the outside of the rotating drum 22.

[0025] The working principle or structural principle is that the bulletproof steel plate 1, outer corner pieces 5, corner protectors 6, and connecting beam 7 are connected by bolts 9, making the connection more secure. Moreover, the bulletproof steel plate 1 does not require welding, ensuring the stability of the internal crystal structure of the steel plate and maintaining the bulletproof performance of the bulletproof steel plate 1. Since the bulletproof steel plate 1 is first connected to the connecting beam 7 by bolts and then welded to the frame 4, it is ensured that the bolt hole positions will not be deformed or misaligned due to the welding of the frame 4 and the connecting beam 7. At the same time, the inner side of the bulletproof steel plate 1 is sprayed with polyurea coating 2, which can absorb energy, buffer, and block bullets or fragments after penetrating the bulletproof steel plate 1. It also has the functions of rust prevention and heat insulation. Furthermore, by attaching flame-retardant gel felt 3, it can also provide flame retardancy and heat insulation. The inner corner pieces 12, inner skin 11, and frame 4 are riveted with rivets 10, which allows for large installation tolerances, convenient and quick construction, and secure installation.

[0026] When it is necessary to climb to the top of the cabin for observation, the fixing bolts must first be loosened so that one end of the fixing bolt is detached from the outside of the column 21. At this time, by rotating the turntable 25 in the opposite direction, the turntable 25 drives the rotating cylinder 22 to rotate on the rotating frame 20. The rotating frame 20 can drive one end of the threaded column 23 to move upward, so that the limiting column 24 at one end of the threaded column 23 is detached from the first ladder frame 15. Then, the rotating frame 20 is flipped to drive the limiting column 24 to detach from the outside of the first ladder frame 15, so that the first ladder frame 15 can be pulled to flip. The first ladder frame 15 rotates around the connecting shaft 14 as the center, so that the first ladder frame 15 drives the second ladder frame 17 to detach from the outside of the cabin. Then, the second ladder frame 17 is rotated to unfold it, and one end of the second ladder frame 17 is placed against the ground, so that the first ladder frame 15 and the second ladder frame 17 can be used. After use, push the first ladder 15 to rotate around the connecting shaft 14, then fold the second ladder 17 inside the first ladder 15 and place the second ladder 17 against the outside of the container. Then push the rotating frame 20 to rotate to a horizontal position. At this time, the limiting post 24 moves to the outside of the first ladder 15. By rotating the rotating cylinder 22 in the forward direction, the rotating cylinder 22 drives the threaded post 23 to move, so that one end of the threaded post 23 abuts against the outside of the post 21, which can limit the angle of the rotating frame 20. At the same time, the other end of the threaded post 23 drives the limiting post 24 to abut against the outside of the first ladder 15, thus completing the limiting of the first ladder 15. This completes the storage of the first ladder 15 and the second ladder 17, saving time and effort.

[0027] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A bulletproof shelter structure, comprising a shelter body, wherein a plurality of bulletproof steel plates (1) are installed on the outer surface of the shelter body, characterized in that, Connecting beams (7) are installed on the inner sides of two adjacent bulletproof steel plates (1). Polyurea coatings (2) are sprayed on the inner sides of several bulletproof steel plates (1). Frames (4) are welded to both sides of the connecting beams (7) away from the bulletproof steel plates (1). One side of the frame (4) is attached to the outer side of the polyurea coating (2). Flame-retardant gel felt (3) is filled between the side of the polyurea coating (2) away from the bulletproof steel plates (1) and the frame (4) and the connecting beams (7). Inner skin (12) is installed on the outer side of the flame-retardant gel felt (3) and the frame (4). Outer corner pieces (5) are installed on the outer side of two adjacent bulletproof steel plates (1). Corner protectors (6) are installed on the outer side of the outer corner pieces (5). Inner corner pieces (11) are installed at the corners of the inner skin (12). Climbing components are installed on the top rear side of the container body. Limiting components are installed on the bottom rear side of the container body.

2. The bulletproof shelter structure according to claim 1, characterized in that, The inner side of the connecting beam (7) is welded with a nut (8), and the corner bracket (6), the outer corner piece (5), the bulletproof steel plate (1) and one side of the connecting beam (7) are sequentially penetrated by bolts (9), one end of the bolt (9) is threaded into the inside of the nut (8).

3. The bulletproof shelter structure according to claim 1, characterized in that, Rivets (10) are installed between the inner corner piece (11), the inner skin (12), and the frame (4).

4. The bulletproof shelter structure according to claim 1, characterized in that, The climbing assembly includes a fixed base (13), a connecting shaft (14), and a first ladder (15). The fixed base (13) is fixedly connected to the main body of the container. The connecting shaft (14) is fixedly connected to the inner side of the fixed base (13). One end of the first ladder (15) is rotatably connected to the outer side of the connecting shaft (14). The other end of the first ladder (15) is hinged to a U-shaped frame (16). One end of the U-shaped frame (16) is hinged to a second ladder (17).

5. The bulletproof shelter structure according to claim 1, characterized in that, The limiting assembly includes a connecting seat (18), a fixed shaft (19), and a rotating frame (20). The connecting seat (18) is fixedly connected to the rear bottom of the container body. The fixed shaft (19) is fixedly connected to the inner side of the connecting seat (18). The rotating frame (20) is movably sleeved on the outer side of the fixed shaft (19). A rotating cylinder (22) is rotatably connected to the top side of the rotating frame (20). A threaded post (23) is threadedly connected to the inner side of the rotating cylinder (22). One end of the threaded post (23) passes through the top of the rotating frame (20). A limiting post (24) is provided at one end of the threaded post (23).

6. The bulletproof shelter structure according to claim 5, characterized in that, The outer side of the fixed shaft (19) is fixedly sleeved with a column (21) on the inner side of the rotating frame (20), and one end of the threaded column (23) abuts against the outer side of the column (21).

7. A bulletproof shelter structure according to claim 5, characterized in that, A turntable (25) is fixedly sleeved on the outside of the rotating cylinder (22).

8. A bulletproof shelter structure according to claim 5, characterized in that, The top of the rotating frame (20) is fixedly connected to the outer side of the rotating cylinder (22) with a rotating ring. The outer side of the rotating ring is connected to a fixing bolt by a thread, and one end of the fixing bolt abuts against the outer side of the rotating cylinder (22).

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