High-strength bulletproof shelter door assembly structure and manufacturing method thereof

Abstract

The invention provides a high-strength bulletproof square cabin door assembly structure and a manufacturing method thereof, and relates to the technical field of square cabin equipment, the high-strength bulletproof square cabin door assembly structure comprises a square cabin body, alignment notches, inner side beams, mounting saddles, transverse connecting holes, door openings, water retaining strips, a communicating cabin opening, reserved cabin holes, a door, top hanging hinges, a reinforcing inner frame, sealing strips, a bottom bracket, a bottom cabin plate, a supporting shelf and anti-deformation steel bars; one end of the square cabin body is a closed end, and a rectangular communicating cabin opening communicated with the inner cavity is formed in the middle of the other end of the square cabin body; according to the design of the closed end and the communicating cabin opening of the shelter body, the requirement for flexible connection between the internal space and the outside or other cabins is effectively met, meanwhile, the integrity and safety of the structure are guaranteed, the inner frame structure is clamped and reinforced through the double-layer thin plates of the vehicle door, the bulletproof capacity of the vehicle door is remarkably improved, and the service life of the vehicle door is prolonged. And through the design of the water diversion groove, the damage of accumulated water to the vehicle door is effectively prevented, and the durability and reliability of the vehicle door are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shelter equipment, and in particular to a high-strength bulletproof shelter door assembly structure and a manufacturing method thereof. Background Art

[0002] In the military, emergency rescue and special operations fields, bulletproof shelters are important mobile protective equipment, and their performance and safety are directly related to the success of the mission and the safety of personnel. However, the traditional door design of bulletproof shelters often faces problems such as insufficient bulletproof ability, poor sealing, complex installation and unstable bottom support. These problems are particularly prominent in harsh environmental conditions, such as extreme weather such as heavy rain and sandstorms, which may cause water to enter the shelter, damage the structure, and even affect the normal execution of the mission.

[0003] With the continuous advancement of science and technology and the increasing demand for protection, the innovation and improvement of the structure and manufacturing method of bulletproof shelter door assembly is particularly important. Although there are some bulletproof shelter products on the market, they still have certain limitations in structural design, material selection and manufacturing process, and it is difficult to meet the requirements of modern protective equipment for high strength, high sealing and high stability. Summary of the invention

[0004] The present invention relates to a high-strength bulletproof cabin door assembly structure and a manufacturing method thereof, which comprehensively improves the overall performance of the bulletproof cabin by optimizing the structural design, adopting advanced materials, and introducing efficient manufacturing processes. This solution not only enhances the bulletproof capability and durability of the door, but also constructs a double sealing system to ensure waterproof performance, while simplifying the installation process and improving the stability of the bottom support. The combination of these innovative points provides a more reliable and efficient solution for the application of bulletproof cabins in complex environments.

[0005] The present invention provides a high-strength bulletproof cabin door assembly structure and a manufacturing method thereof, which specifically comprises: a cabin body, a positioning notch, an inner side beam, a mounting saddle, a transverse connecting hole, a door opening, a water retaining strip, a connecting hatch, a reserved hatch hole, a door, a top hanging hinge, a reinforced inner frame, a sealing strip, a bottom bracket, a bottom cabin plate, a supporting rack, and an anti-deformation steel strip; one end of the cabin body is a closed end, and a rectangular connecting hatch communicating with an inner cavity is opened in the middle of the other end; the left side of the cabin body is provided with a plurality of connecting holes, and the connecting holes are connected to the inner cavity. Door openings are symmetrically provided on the side walls at both ends of the right side, and car doors are installed in the door openings accordingly; installation saddle openings are provided on the left and right sides of the square cabin body below the door openings, and circular transverse connecting holes are provided on the left and right sides of the side panels of the installation saddle openings close to the closed end of the square cabin body, and transverse connecting rods are connected in the transverse connecting holes; the bottom of the square cabin body is sealed with a bottom cabin plate, and a bottom bracket is provided below the bottom cabin plate, and both ends of the bottom bracket are fixedly welded to the lower end of the square cabin body, and the top of the bottom bracket is welded to the bottom surface of the bottom cabin plate.

[0006] Optionally, two inclined alignment notches are provided at the lower edge of the sealed end of the square cabin body, and the alignment notches are used to be embedded with the external structure;

[0007] A transverse inner beam evenly spaced up and down is arranged on the inner side of the door opening of the square cabin body, and the inner beam is fixed to the beam of the square cabin body by hanging spot welding.

[0008] Optionally, a closed water retaining strip is provided at the ring edge of the door opening, the outer ring edge of the water retaining strip is an outward convex structure, and the edge of the door at the water retaining strip is at least 30MM away from the edge of the outer plate of the cabin body.

[0009] Optionally, symmetrical reserved hatch holes are provided at the left and right edge ends of the connecting hatch, and the reserved hatch holes are used to install symmetrical hatch doors.

[0010] Optionally, the upper edge of the door is mounted on the cabin body through a top-hanging hinge, and the door is composed of a double-layer thin plate sandwiched with a reinforced inner frame, and a water diversion groove is provided on the vertical frame of the reinforced inner frame;

[0011] An annular closed sealing strip is arranged on the inner ring edge of the vehicle door, and the water retaining strip serves as a stopper of the sealing strip, so that the vehicle door and the water retaining strip form two seals.

[0012] Optionally, the bottom bracket is a trapezoidal structure formed by welding double rows of square tubes.

[0013] Optionally, the bottom deck is composed of a clamping structure in which a support shelf is clamped within a double-layer steel plate.

[0014] Optionally, a method for manufacturing a high-strength bulletproof shelter door assembly structure includes:

[0015] Step 1: When cutting the door side outer plate of the cabin body close to the door opening, according to the size of the door opening, a 20mm long section is reserved every 400mm in the circumferential direction of the door opening without cutting to ensure that the steel plate of the outer plate does not deform, and is cut and polished with a cutting disc after welding is completed;

[0016] Step 2: After the door is bent, the beam system on the inner side of the outer panel that does not interfere with the overall assembly is fixed by hanging spot welding to increase the strength of the side panel and reduce welding deformation;

[0017] Step 3: After the inner beam of the outer panel of the car door is welded and fixed, the outer side is spot welded with a contoured anti-deformation steel bar. The contoured anti-deformation steel bar is cut from a 5mm bulletproof steel plate, and its angle is consistent with the side panel angle. When the side panel and the top cover, floor, front panel, and rear panel overlap, the double-sided full welding is performed to reduce welding deformation;

[0018] Step 4: When the shelter is assembled, the anti-deformation steel bars cannot be removed. After the double-sided full welding is completed and the welds are cooled naturally, the anti-deformation steel bars can be removed and the uncut parts of the door opening can be cut with a cutting blade;

[0019] Step 5: After the door opening is cut, the door frame sealing beams are welded from both ends to the middle in sections to reduce welding deformation. Due to the large size of the door opening, the minimum distance between the upper edge of the door frame and the edge of the outer plate is only 30mm. In order to ensure the sealing of the cabin, the water retaining strip is innovatively used as the stop of the sealing strip, plus the seal on the door, to form two seals to ensure that no water leaks in the rain;

[0020] Step 6. Since the car doors are also large in size and thin plates, the hanging spot welding process is also used when welding the car doors. After the hanging spot is completed, the second welding is used locally to increase the welding strength. After welding is completed, anti-deformation steel bars are spot welded on the outer panel of the car door to control the angle of the car door while reducing welding deformation.

[0021] The present invention provides a high-strength bulletproof cabin door assembly structure and a manufacturing method thereof, which has the following beneficial effects:

[0022] Firstly, the design of the closed end and the connecting hatch of the square cabin body effectively meets the demand for flexible connection between the internal space and the outside or other cabins, while ensuring the integrity and safety of the structure; the double-layer thin plate clamping and reinforced inner frame structure of the door not only significantly enhances the bulletproof capability of the door, but also effectively prevents the damage of accumulated water to the door through the design of the water diversion groove, thereby improving the durability and reliability of the door.

[0023] Secondly, the double sealing system composed of the water retaining strip and the sealing strip, as well as the close cooperation between the car door and the water retaining strip, together build an indestructible waterproof barrier. This design effectively blocks the infiltration of rainwater and ensures the dryness and safety of the internal environment of the shelter, thereby extending the service life of the shelter and improving its overall performance.

[0024] In terms of installation technology, this embodiment adopts a variety of technical means such as reserved uncut sections, hanging spot welding, anti-deformation steel bar assistance and double welding reinforcement to effectively control welding deformation and ensure the dimensional stability and strength requirements of the door and the compartment body. These process measures not only improve the manufacturing accuracy and efficiency, but also significantly reduce the manufacturing cost and maintenance difficulty.

[0025] Finally, the solid combination of the bottom cabin plate and the bottom bracket as well as the trapezoidal structure design provide the shelter with strong bottom support and load-bearing capacity. The design of the double-layer steel plate clamping support shelf further enhances the rigidity and impact resistance of the bottom cabin plate, ensuring the stability and safety of the shelter in complex environments.

[0026] In summary, the high-strength bulletproof cabin door assembly structure and its manufacturing method proposed in this embodiment have demonstrated significant beneficial technical effects in improving the overall performance of the cabin and ensuring waterproof sealing and stability. These effects not only improve the practical value and service life of the cabin, but also provide strong support for technological progress and industrial upgrading in related fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0028] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0029] In the attached picture:

[0030] Figure 1 A schematic diagram of the first axial view of the present invention is shown;

[0031] Figure 2 A second axial structural schematic diagram of the present invention is shown;

[0032] Figure 3 The schematic diagram of the axial structure of the present invention in a disassembled state is shown;

[0033] Figure 4 It shows a schematic diagram of the axial structure of the vehicle door outer side panel in the unfolded state of the present invention;

[0034] Figure 5 It shows a schematic diagram of the axial structure of the vehicle door of the present invention in an overall unfolded state;

[0035] Figure 6 The present invention shows Figure 5 A is a schematic diagram of the structure of the enlarged part;

[0036] Figure 7 It shows a schematic diagram of the axial structure of the vehicle door welding process of the present invention;

[0037] Figure 8 The schematic diagram of the axial structure of the square cabin body on the inner side of the vehicle door of the present invention is shown.

[0038] Reference numerals list

[0039] 1. Shelf body; 101. Alignment notch; 102. Inner beam;

[0040] 2. Install the saddle;

[0041] 3. Horizontal connecting holes;

[0042] 4. Door opening; 401. Water retaining strip;

[0043] 5. Connecting hatch; 501. Reserved hatch hole;

[0044] 6. Car door; 601. Top hinge; 602. Strengthen inner frame; 603. Sealing strip;

[0045] 7. Bottom bracket;

[0046] 8. Bottom deck; 801. Support rack;

[0047] 9. Profiled anti-deformation steel bars. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1: Please refer to Figures 1 to 8 :

[0050] The present invention proposes a high-strength bulletproof cabin door assembly structure and a manufacturing method thereof, comprising: a cabin body 1, a positioning notch 101, an inner side beam 102, a mounting saddle 2, a cross-connecting hole 3, a door opening 4, a water retaining strip 401, a connecting hatch 5, a reserved hatch hole 501, a door 6, a top hanging hinge 601, a reinforced inner frame 602, a sealing strip 603, a bottom bracket 7, a bottom cabin plate 8, a supporting shelf 801, and an anti-deformation steel strip 9; one end of the cabin body 1 is a closed end, and a rectangular connecting hatch 5 communicating with the inner cavity is opened in the middle of the other end ; Door openings 4 are symmetrically provided on the left and right side walls of the square cabin body 1, and car doors 6 are installed in the door openings 4 accordingly; mounting saddle openings 2 are penetrated on the left and right sides of the square cabin body 1 below the door openings 4, and circular transverse connecting holes 3 are penetrated on the left and right sides of the side plates of the mounting saddle openings 2 close to the closed end of the square cabin body 1, and transverse connecting rods are connected in the transverse connecting holes 3; the bottom of the square cabin body 1 is sealed with a bottom cabin plate 8, and a bottom bracket 7 is provided below the bottom cabin plate 8, and the two ends of the bottom bracket 7 are fixedly welded to the lower end of the square cabin body 1, and the top of the bottom bracket 7 is welded to the bottom surface of the bottom cabin plate 8.

[0051] Among them, two inclined alignment notches 101 are provided at the lower edge of the sealed end of the square cabin body 1, and the alignment notches 101 are used to be embedded with the external structure;

[0052] A transverse inner beam 102 with uniform vertical spacing is arranged on the inner side of the door opening 4 of the square cabin body 1, and the inner beam 102 is fixed to the beam of the square cabin body 1 by hanging spot welding.

[0053] Among them, a closed water retaining strip 401 is provided at the ring edge of the door opening 4, and the outer ring edge of the water retaining strip 401 is an outward convex structure. The edge of the vehicle door 6 at the water retaining strip 401 is at least 30MM away from the outer plate edge of the cabin body 1.

[0054] Among them, symmetrical reserved hatch holes 501 are provided at the left and right edge edges of the connecting hatch 5, and the reserved hatch holes 501 are used to install symmetrical hatch doors.

[0055] The upper edge of the door 6 is mounted on the cabin body 1 through a top hinge 601. The door 6 is composed of a double-layer thin plate with a reinforced inner frame 602 sandwiched therein. A water diversion groove is provided on the vertical frame of the reinforced inner frame 602.

[0056] An annular closed sealing strip 603 is provided on the inner ring edge of the vehicle door 6 , and the water retaining strip 401 serves as a stopper of the sealing strip 603 , so that the vehicle door 6 and the water retaining strip 401 form two seals.

[0057] The bottom bracket 7 is a trapezoidal structure formed by welding double rows of square tubes.

[0058] The bottom deck 8 is composed of a clamping structure of a double-layer steel plate that clamps a support shelf 801 .

[0059] Embodiment 2, based on embodiment 1, a method for manufacturing a high-strength bulletproof shelter door assembly structure includes:

[0060] Step 1: When cutting the door side outer plate of the cabin body 1 close to the door opening 4, according to the size of the door opening, a 20mm long section is reserved every 400mm in the circumferential direction of the door opening 4 without cutting to ensure that the steel plate of the outer plate does not deform. After welding is completed, it is cut and polished with a cutting disc;

[0061] Step 2: After the door 6 is bent, the beam system on the inner side of the outer panel that does not interfere with the overall assembly is first fixed by hanging spot welding to increase the strength of the side panel and reduce welding deformation;

[0062] Step 3: After the inner beam of the outer panel of the door 6 is welded and fixed, the outer side is spot welded with a contoured anti-deformation steel bar 9, which is cut from a 5mm bulletproof steel plate and has an angle consistent with the side panel angle. When the side panel and the top cover, floor, front panel, and rear panel overlap, the double-sided full welding is performed to reduce welding deformation;

[0063] Step 4: When the shelter hull 1 is assembled, the anti-deformation steel bar 9 cannot be removed. After the double-sided full welding is completed and the weld is naturally cooled, the anti-deformation steel bar 9 is removed and the uncut part of the door opening 4 is cut with a cutting blade;

[0064] Step 5: After the door opening 4 is cut off, the door frame sealing beams are welded from both ends to the middle in sections to reduce welding deformation. Due to the large size of the door opening, the minimum distance between the upper edge of the door frame and the edge of the outer plate is only 30 mm. In order to ensure the sealing of the cabin body 1, the water retaining strip 401 is innovatively used as the stopper of the sealing strip 603, and the seal on the car door is added to form two seals to ensure that no water leaks in the rain;

[0065] Step 6. Since the door 6 is also large in size and is a thin plate, the door 6 is also welded using the hanging spot welding process. After the hanging spot is completed, the second welding is locally used to increase the welding strength. After the welding is completed, the anti-deformation steel strip 9 is spot welded on the outer panel of the door 6 to control the angle of the door 6 and reduce welding deformation.

[0066] The working principle of this embodiment:

[0067] The square cabin body 1 is the core bearing structure, with one end closed and the other end provided with a connecting hatch 5, which facilitates the interconnection between the internal space and the outside or other cabins. The door openings 4 are symmetrically arranged on both sides of the cabin body, providing a position for the installation of the door 6. The door 6 is firmly connected to the cabin body through the top hinge 601. The design of the double-layer thin plate clamping reinforced inner frame 602 not only enhances the bulletproof ability of the door, but also effectively diverts the water flow through the water diversion groove on the inner frame to prevent the accumulation of water from damaging the door. The reinforced inner frame 602 is closely combined with the inner panel of the door to jointly resist external impact.

[0068] The water retaining strip 401 is arranged around the edge of the door opening 4, and its convex structure effectively blocks rainwater from penetrating. At the same time, it serves as a stop for the sealing strip 603, and together with the annular sealing strip 603 on the inner side of the vehicle door 6, it forms a double sealing system to ensure the waterproof performance of the shelter under adverse weather conditions. The close cooperation between the vehicle door 6 and the water retaining strip 401 prevents rainwater from penetrating, ensuring the dryness and safety of the interior of the shelter.

[0069] During the installation process, the door side outer panel of the shelter 1 adopts a special process of reserving uncut sections to control welding deformation. The bending and welding of the door 6 also follow precise process steps. Through hanging spot welding, the assistance of anti-deformation steel strips 9 and the reinforcement of two-protection welding, the dimensional stability of the door during the welding process and the final strength requirements are ensured. The clever use of anti-deformation steel strips 9 effectively offsets the thermal stress generated during the welding process and avoids deformation of the door and the shelter.

[0070] The solid combination of the bottom cabin plate 8 and the bottom bracket 7 provides a stable bottom support for the cabin; the trapezoidal structural design of the bottom bracket 7 enhances its load-bearing capacity, while the double-layer steel plate clamping support frame 801 of the bottom cabin plate 8 further enhances its rigidity and impact resistance.

[0071] In this article, there are a few points to note:

[0072] 1. The drawings of the embodiments of the present invention only involve structures related to the embodiments of the present invention, and other structures can refer to the general design.

[0073] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0074] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength bulletproof cabin door assembly structure, characterized in that: include: A square cabin body (1), a positioning notch (101), an inner beam (102), a mounting saddle (2), a transverse connecting hole (3), a door opening (4), a water retaining strip (401), a connecting hatch (5), a reserved hatch hole (501), a vehicle door (6), a top hanging hinge (601), a reinforced inner frame (602), a sealing strip (603), a bottom bracket (7), a bottom cabin plate (8), a supporting shelf (801), and an anti-deformation steel strip (9); one end of the square cabin body (1) is a closed end, and a rectangular connecting hatch (5) communicating with the inner cavity is opened in the middle of the other end; the left and right side walls of the square cabin body (1) are Door openings (4) are symmetrically provided, and vehicle doors (6) are correspondingly installed in the door openings (4); a mounting saddle opening (2) is provided on the left and right sides of the square cabin body (1) below the door opening (4); a circular transverse connecting hole (3) is provided on the left and right sides of the side plate of the mounting saddle opening (2) close to the closed end of the square cabin body (1); a transverse connecting rod is connected in the transverse connecting hole (3); the bottom of the square cabin body (1) is sealed with a bottom cabin plate (8), a bottom bracket (7) is provided below the bottom cabin plate (8), both ends of the bottom bracket (7) are fixedly welded to the lower end of the square cabin body (1), and the top of the bottom bracket (7) is welded to the bottom surface of the bottom cabin plate (8).

2. A high-strength bulletproof shelter door assembly structure according to claim 1, characterized in that: Two inclined alignment notches (101) are provided at the edge of the sealed lower end of the square cabin body (1), and the alignment notches (101) are used to be embedded with the external structure; A transverse inner beam (102) with uniform vertical spacing is provided on the inner side of the door opening (4) of the square cabin body (1), and the inner beam (102) is fixed to the beam of the square cabin body (1) by hanging spot welding.

3. The high-strength bulletproof shelter door assembly structure according to claim 1, characterized in that: A closed water retaining strip (401) is provided at the edge of the door opening (4), the outer edge of the water retaining strip (401) is an outward convex structure, and the edge of the vehicle door (6) at the water retaining strip (401) is at least 30mm away from the outer plate edge of the cabin body (1).

4. The high-strength bulletproof shelter door assembly structure according to claim 1, characterized in that: Symmetrical reserved hatch holes (501) are provided at the left and right edge portions of the connecting hatch (5), and the reserved hatch holes (501) are used to install symmetrical hatch doors.

5. The high-strength bulletproof shelter door assembly structure according to claim 3, characterized in that: The upper edge of the door (6) is mounted on the cabin body (1) via a top-hanging hinge (601), and the door (6) is composed of a double-layer thin plate with a reinforced inner frame (602) sandwiched therein, and a water diversion groove is provided on the vertical frame of the reinforced inner frame (602); An annular closed sealing strip (603) is provided on the inner ring edge of the vehicle door (6), and the water retaining strip (401) serves as a stopper for the sealing strip (603), so that the vehicle door (6) and the water retaining strip (401) form two seals.

6. The high-strength bulletproof shelter door assembly structure according to claim 1, characterized in that: The bottom bracket (7) is a trapezoidal structure formed by welding double rows of square tubes.

7. The high-strength bulletproof shelter door assembly structure according to claim 1, characterized in that: The bottom deck (8) is composed of a clamping plate structure in which a supporting shelf (801) is clamped within a double-layer steel plate.

8. The method for manufacturing a high-strength bulletproof shelter door assembly structure according to claim 1, characterized in that: Step 1: When cutting the door side outer plate of the cabin body (1) close to the door opening (4), according to the size of the door opening, a 20mm long section is reserved every 400mm in the circumferential direction of the door opening (4) without cutting, so as to ensure that the steel plate of the outer plate does not deform, and is cut and polished with a cutting disc after welding is completed; Step 2: After the door (6) is bent and deformed, the beam system on the inner side of the outer panel that does not interfere with the overall assembly is first fixed by hanging spot welding to increase the strength of the side panel and reduce welding deformation; Step 3: After the inner beam of the outer plate of the vehicle door (6) is welded and fixed, the outer side is spot welded with a contoured anti-deformation steel bar (9), which is cut from a 5mm bulletproof steel plate and has an angle consistent with the angle of the side panel. When the overlapped parts of the side panel and the top cover, floor, front panel and rear panel are fully welded on both sides, welding deformation is reduced; Step 4: When the shelter body (1) is assembled, the anti-deformation steel bar (9) cannot be removed. After the double-sided full welding is completed and the weld is naturally cooled, the anti-deformation steel bar (9) is removed and the uncut part of the door opening (4) is cut with a cutting blade; Step 5: After the door opening (4) is cut out, the door frame sealing beams are welded in sections from both ends to the middle to reduce welding deformation. Due to the large size of the door opening, the minimum distance between the upper edge of the door frame and the edge of the outer plate is only 30 mm. In order to ensure the sealing of the cabin body (1), the water retaining strip (401) is innovatively used as the stopper of the sealing strip (603), and the seal on the door is added to form a double seal to ensure that no water leaks in the rain. Step 6. Since the door (6) is also large in size and is a thin plate, the door (6) is also welded using the hanging spot welding process. After the hanging spot is completed, the second welding is locally used to increase the welding strength. After the welding is completed, the anti-deformation steel strip (9) is spot welded on the outer plate of the door (6) to control the angle of the door (6) and reduce welding deformation.

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