A deformation-resistant steel security door

Abstract

The utility model belongs to the technical field of protective door, especially is a kind of anti-deformation steel protective door, including door body, the four corners of door body are all equipped with buffer assembly, and the anti-impact plate is installed on buffer assembly, and buffer assembly includes fixed cylinder and sliding rod, and the fixed cylinder is fixedly connected inside the four corners of door body, the utility model is driven sliding rod to slide in fixed cylinder by anti-impact plate, sliding rod moves, will directly compress buffer spring two, carry out first-stage energy absorption, simultaneously, sliding rod drives connecting rod movement, and connecting rod is connected mechanism by standing case, support rod and sliding plate, and then can make sliding plate slide on connecting sleeve, make it drive connecting frame to pull pull plate movement, to be able to drive sliding sleeve to slide on the outer wall of fixed cylinder, to be able to compress buffer spring one, realize second-stage energy absorption, effectively buffer external impact force, avoid the deformation damage of door body due to external impact force.

Description

Technical Field

[0001] This utility model relates to the field of protective door technology, specifically a deformation-resistant steel protective door. Background Technology

[0002] In the military, chemical, financial, and critical infrastructure sectors, steel protective doors (such as blast-proof doors and impact-resistant doors) are key facilities for ensuring the safety of personnel and property. Existing high-level protective doors generally adopt the "rigid protection" approach, which means rigidly resisting impacts by greatly increasing the thickness of the door leaf steel plate, adding internal reinforcing ribs (keel), and using ultra-heavy-duty hinges and multi-point locking systems.

[0003] However, traditional protective doors are too rigid and lack cushioning. When subjected to a huge impact, the door is subjected to uneven force and is prone to plastic deformation or tearing at stress concentration points, resulting in permanent twisting and deformation of the door and loss of its protective function. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a deformation-resistant steel protective door, which solves the problem that current protective doors have excessively rigid door panels, lack buffering, and when subjected to huge impacts, the door panels are subjected to uneven stress, easily causing plastic deformation or tearing at stress concentration points, resulting in permanent twisting and deformation of the door panels and loss of protective function.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a deformation-resistant steel protective door, comprising a door body, with buffer assemblies installed at each of the four corners of the door body, and impact-resistant plates installed on the buffer assemblies. Each buffer assembly includes a fixed cylinder and a sliding rod. The fixed cylinder is fixedly connected to the inside of the four corners of the door body, and the sliding rod is fixedly connected to one side of the impact-resistant plate at each of the four corners. The outer wall of the sliding rod is slidably connected to the inner wall of the fixed cylinder. Connecting rods are fixedly connected to both sides of the outer wall of the sliding rod. Fixed frames are fixedly connected to both sides of the outer wall of the fixed cylinder. Connecting sleeves are fixedly connected to one side of the surface of each fixed frame. The outer wall of the connecting rod is slidably connected to the inner wall of the connecting sleeve. Each connecting rod has a connecting plate fixedly connected to its bottom end. Support rods are fixedly connected to both sides of the upper surface of the connecting plate. A sliding plate is fixedly connected to the top of the support rod. The inner wall of the sliding plate is slidably connected to the outer wall of the connecting sleeve. A sliding sleeve is slidably connected to the outer wall of the fixed cylinder. A buffer spring one is fixedly connected to the lower surface of the sliding sleeve at equal angles in the circumference. The bottom end of the buffer spring one is fixedly connected to the middle of the outer wall of the fixed cylinder. A buffer spring two is fixedly connected to the upper part of the outer wall of the fixed cylinder. The top end of the buffer spring two is fixedly connected to the upper part of the sliding rod. A connecting frame is fixedly connected to one side of the sliding plate and both sides of the outer wall of the sliding sleeve. The connecting frames are hinged together by a pull plate.

[0006] As a preferred embodiment of this utility model, mounting cylinders are fixedly connected to both sides and the middle of the door body, and fixing rods are fixedly connected to both sides and the middle of the impact-resistant plate. The outer wall of the fixing rod is slidably connected to the inner wall of the mounting cylinder. Pull rod one is rotatably connected to both sides of the outer wall of the fixing rod, and pull rod two is rotatably connected to both sides of the outer wall of the mounting cylinder. Fixing plates are fixedly connected to both sides of the door body, and buffer rods are slidably connected to the surface of the fixing plates. One end of each buffer rod is fixedly connected to a mounting frame, and pull rod one and pull rod two are rotatably connected to the mounting frame. Buffer spring four is installed on the outer wall of the buffer rod.

[0007] As a preferred embodiment of this utility model, a buffer spring three is fixedly connected to the lower inner surface of the mounting cylinder, and the top end of the buffer spring three is fixedly connected to the bottom end of the fixing rod.

[0008] As a preferred embodiment of this utility model, mounting grooves are provided on both sides and in the middle of the door body, the bottom end of the mounting cylinder is fixedly connected to the inner wall of the mounting groove, and the second pull rod is slidably connected inside the mounting groove.

[0009] As a preferred embodiment of this utility model, buffer pads are fixedly connected to the lower inner surface of the fixing frame.

[0010] As a preferred embodiment of this utility model, an impact-resistant pad is fixedly connected to the surface of the impact-resistant plate.

[0011] Compared with the prior art, this utility model provides a deformation-resistant steel protective door, which has the following characteristics:

[0012] Beneficial effects:

[0013] This type of deformation-resistant steel protective door uses an impact-resistant plate to drive a sliding rod to slide within a fixed cylinder. When the sliding rod moves, it directly compresses the second buffer spring for the first stage of energy absorption. Simultaneously, the sliding rod drives the connecting rod to move. The connecting rod, through a mounting bracket, a support rod, and a sliding plate, forms a connecting mechanism, which allows the sliding plate to slide on the connecting sleeve. This causes the connecting frame to pull the pull plate, thereby causing the sliding sleeve to slide on the outer wall of the fixed cylinder, compressing the first buffer spring for the second stage of energy absorption. This effectively buffers external impact forces and prevents deformation and damage to the door body caused by external impact forces. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the buffer component of this utility model;

[0018] Figure 5 This is an exploded view of the buffer component of this utility model.

[0019] In the diagram: 1. Door body; 2. Impact-resistant plate; 3. Buffer assembly; 301. Fixing cylinder; 302. Slide rod; 303. Connecting rod; 304. Fixing frame; 305. Slide sleeve; 306. Buffer spring one; 307. Buffer spring two; 308. Connecting sleeve; 309. Connecting plate; 310. Support rod; 311. Slide plate; 312. Connecting frame; 313. Pull plate; 4. Mounting cylinder; 5. Fixing rod; 6. Buffer spring three; 7. Pull rod one; 8. Pull rod two; 9. Fixing plate; 10. Buffer rod; 11. Mounting frame; 12. Buffer spring four; 13. Mounting groove; 14. Buffer pad; 15. Impact-resistant pad. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figure 1-5In this embodiment: a deformation-resistant steel protective door includes a door body 1. Buffer components 3 are installed at each of the four corners of the door body 1. Impact-resistant plates 2 are installed on the buffer components 3. Each buffer component 3 includes a fixed cylinder 301 and a sliding rod 302. The fixed cylinder 301 is fixedly connected to the inside of the four corners of the door body 1. The sliding rod 302 is fixedly connected to one side of the impact-resistant plate 2 at each of the four corners. The outer wall of the sliding rod 302 is slidably connected to the inner wall of the fixed cylinder 301. Connecting rods 303 are fixedly connected to both sides of the outer wall of the sliding rod 302. Fixed frames 304 are fixedly connected to both sides of the outer wall of the fixed cylinder 301. Connecting sleeves 308 are fixedly connected to one side of the surface of each fixed frame 304. The outer wall of the connecting rod 303 is slidably connected to the inner wall of the connecting sleeve 308. A connecting rod is fixedly connected to the bottom end of each connecting rod 303. The upper surface of the connecting plate 309 is fixedly connected to both sides of the upper surface of the connecting plate 309. The top of the support rod 310 is fixedly connected to the slide plate 311. The inner wall of the slide plate 311 is slidably connected to the outer wall of the connecting sleeve 308. The outer wall of the fixed cylinder 301 is slidably connected to the sliding sleeve 305. The lower surface of the sliding sleeve 305 is fixedly connected to the first buffer spring 306 at equal angles in the circumference. The bottom end of the first buffer spring 306 is fixedly connected to the middle of the outer wall of the fixed cylinder 301. The upper part of the outer wall of the fixed cylinder 301 is fixedly connected to the second buffer spring 307. The top end of the second buffer spring 307 is fixedly connected to the upper part of the slide rod 302. One side of the slide plate 311 and both sides of the outer wall of the sliding sleeve 305 are fixedly connected to the connecting frame 312. The connecting frames 312 are hinged together by the pull plate 313.

[0023] In this embodiment, the impact-resistant plate 2 drives the sliding rods 302 at its four corners to move inward, causing the sliding rods 302 to slide within the fixed cylinder 301. This sliding process produces a dual buffering effect: when the sliding rods 302 move inward, they directly compress the second buffer spring 307 connected between the upper part of the sliding rod 302 and the fixed cylinder 301, achieving the first stage of energy absorption; simultaneously, the sliding rod 302 drives the connecting rod 303 to move. The connecting rod 303, through a linkage mechanism composed of the connecting plate 309, the support rod 310, and the sliding plate 311, pulls the connecting frame 312 and the pull plate 313. This linkage mechanism then drives the sliding sleeve 305 to slide on the outer wall of the fixed cylinder 301, thereby compressing the first buffer spring 306, achieving the second stage of energy absorption.

[0024] Furthermore, mounting cylinders 4 are fixedly connected to both sides and the middle of the door body 1, and fixing rods 5 are fixedly connected to both sides and the middle of the impact-resistant plate 2. The outer wall of the fixing rod 5 is slidably connected to the inner wall of the mounting cylinder 4. Pull rod 7 is rotatably connected to both sides of the outer wall of the fixing rod 5, and pull rod 8 is rotatably connected to both sides of the outer wall of the mounting cylinder 4. Fixing plates 9 are fixedly connected to both sides of the door body 1, and buffer rods 10 are slidably connected to the surface of the fixing plates 9. One end of the buffer rod 10 is fixedly connected to the mounting bracket 11. Pull rod 7 and pull rod 8 are rotatably connected to the mounting bracket 11. Buffer spring 4 12 is installed on the outer wall of the buffer rod 10. Buffer spring 3 6 is fixedly connected to the lower inner surface of the mounting cylinder 4, and the top end of buffer spring 3 6 is fixedly connected to the bottom end of the fixing rod 5.

[0025] The impact-resistant plate 2 drives the fixed rods 5 on both sides and in the middle to move inward, so that they slide inside the mounting cylinder 4. This sliding process also produces a double buffering effect: when the fixed rod 5 slides into the mounting cylinder 4, its bottom end will directly compress the buffer spring 6 inside the mounting cylinder 4 for buffering; at the same time, the movement of the fixed rod 5 drives the mounting frame 11 through the pull rod 7. Since one end of the pull rod 8 is connected to the relatively fixed mounting cylinder 4, the relative movement of the pull rod 7 and the pull rod 8 will push the mounting frame 11, thereby causing the buffer rod 10 to slide on the fixed plate 9, which will compress the buffer spring 12 on the outer wall of the buffer rod 10, achieving further energy absorption.

[0026] Preferably, mounting grooves 13 are provided on both sides and in the middle of the door body 1, the bottom end of the mounting cylinder 4 is fixedly connected to the inner wall of the mounting groove 13, and the pull rod 8 is slidably connected inside the mounting groove 13.

[0027] Preferably, the inner lower surface of the fixing frame 304 is fixedly connected to the buffer pad 14;

[0028] The buffer pad 14 inside the fixing frame 304 can provide final cushioning when the connecting plate 309 is in the extreme position, preventing rigid collisions.

[0029] Preferably, an impact-resistant pad 15 is fixedly connected to the surface of the impact-resistant plate 2;

[0030] When the door 1 is subjected to a huge external impact, the impact force first acts on the impact pad 15 on the surface of the impact plate 2, and the impact pad 15 absorbs and buffers the initial energy of the first wave.

[0031] The working principle and usage process of this utility model are as follows: When the protective door is subjected to a huge external impact, the impact force first acts on the impact-resistant pad 15 on the surface of the impact-resistant plate 2. The impact-resistant pad 15 absorbs and buffers the initial energy of the first wave. Subsequently, the impact force is transmitted to the entire impact-resistant plate 2. Under the action of the force, the impact-resistant plate 2 will translate towards the door body 1. This translational movement will simultaneously trigger multiple sets of buffer structures installed at the four corners, sides, and center of the door body. The impact-resistant plate 2 drives the sliding rods 302 at its four corners to move inward, causing the sliding rods 302 to slide within the fixed cylinder 301. This sliding process will produce a double buffering effect: when the sliding rods 302 move inward, they will directly compress the buffer spring 307 connected between the upper part of the sliding rods 302 and the fixed cylinder 301, achieving the first stage of energy absorption. At the same time, the sliding rods 302 drive the connecting rod 303 to move. The connecting rod 303 pulls the connecting frame 312 and the pull plate 313 through the linkage mechanism composed of the connecting plate 309, the support rod 310, and the sliding plate 311. The linkage mechanism then drives the sliding sleeve 305 to slide on the outer wall of the fixed cylinder 301, thereby compressing the buffer spring 306 and achieving the second stage of energy absorption. The impact-resistant plate 2 simultaneously drives the fixed rods 5 on both sides and in the middle to move inward, so that they slide inside the mounting cylinder 4. This sliding process also produces a double buffering effect: when the fixed rod 5 slides into the mounting cylinder 4, its bottom end will directly compress the buffer spring 6 inside the mounting cylinder 4 for buffering. At the same time, the movement of the fixed rod 5 drives the mounting frame 11 through the pull rod 7. Since one end of the pull rod 8 is connected to the relatively fixed mounting cylinder 4, the relative movement of the pull rod 7 and the pull rod 8 will push the mounting frame 11, thereby causing the buffer rod 10 to slide on the fixed plate 9, which will compress the buffer spring 12 on the outer wall of the buffer rod 10 and achieve further energy absorption.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A deformation-resistant steel protective door, comprising a door body (1), characterized in that: Buffer components (3) are installed at each of the four corners of the door (1). Impact-resistant plates (2) are installed on the buffer components (3). Each buffer component (3) includes a fixed cylinder (301) and a sliding rod (302). The fixed cylinder (301) is fixedly connected to the inside of the four corners of the door (1). The sliding rod (302) is fixedly connected to one side of the impact-resistant plate (2) at the four corners. The outer wall of the sliding rod (302) is slidably connected to the inner wall of the fixed cylinder (301). Connecting rods (303) are fixedly connected to both sides of the outer wall of the sliding rod (302). Fixed frames (304) are fixedly connected to both sides of the outer wall of the fixed cylinder (301). Connecting sleeves (308) are fixedly connected to one side of the surface of the fixed frames (304). The outer wall of the connecting rod (303) is slidably connected to the inner wall of the connecting sleeve (308). Connecting plates (309) are fixedly connected to the bottom end of the connecting rod (303). Support rods (310) are fixedly connected to both sides of the upper surface of the connecting plate (309). A sliding plate (311) is fixedly connected to the top of the support rod (310). The inner wall of the sliding plate (311) is slidably connected to the outer wall of the connecting sleeve (308). A sliding sleeve (305) is slidably connected to the outer wall of the fixed cylinder (301). A buffer spring (306) is fixedly connected to the lower surface of the sliding sleeve (305) at equal angles in the circumference. The bottom end of the buffer spring (306) is fixedly connected to the middle of the outer wall of the fixed cylinder (301). A buffer spring (307) is fixedly connected to the upper part of the outer wall of the fixed cylinder (301). The top end of the buffer spring (307) is fixedly connected to the upper part of the sliding rod (302). A connecting frame (312) is fixedly connected to one side of the sliding plate (311) and both sides of the outer wall of the sliding sleeve (305). The connecting frames (312) are hinged together by a pull plate (313).

2. The deformation-resistant steel protective door according to claim 1, characterized in that: The door body (1) is fixedly connected to the two sides and the middle of the door body (1). The anti-impact plate (2) is fixedly connected to the two sides and the middle of the door body (1). The outer wall of the fixed rod (5) is slidably connected to the inner wall of the door body (4). The outer walls of the fixed rod (5) are rotatably connected to the two sides of the door body (1). The outer walls of the door body (1) are rotatably connected to the two sides of the door body (4). The surface of the fixed plate (9) is slidably connected to the buffer rod (10). One end of the buffer rod (10) is fixedly connected to the mounting frame (11). The first pull rod (7) and the second pull rod (8) are rotatably connected to the mounting frame (11). The outer wall of the buffer rod (10) is equipped with a buffer spring (12).

3. The deformation-resistant steel protective door according to claim 2, characterized in that: A buffer spring three (6) is fixedly connected to the lower inner surface of the mounting cylinder (4), and the top end of the buffer spring three (6) is fixedly connected to the bottom end of the fixing rod (5).

4. The deformation-resistant steel protective door according to claim 2, characterized in that: The door body (1) has mounting grooves (13) on both sides and in the middle. The bottom end of the mounting cylinder (4) is fixedly connected to the inner wall of the mounting groove (13), and the second pull rod (8) is slidably connected inside the mounting groove (13).

5. The deformation-resistant steel protective door according to claim 1, characterized in that: The inner lower surface of the fixing frame (304) is fixedly connected to the buffer pad (14).

6. The deformation-resistant steel protective door according to claim 1, characterized in that: An impact-resistant pad (15) is fixedly connected to the surface of the impact-resistant plate (2).

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