Civil air defense auxiliary escape sealing door
By incorporating cavities, sealing heads, and synchronization rings into the airtight doors, the problem of deformation and jamming during impacts has been solved, enabling rapid escape when obstructed by foreign objects and improving escape efficiency and safety.
Patent Information
- Application Number
- CN202520123151.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing sealed doors are prone to deformation when impacted, causing them to jam against the wall and hindering escape; auxiliary exits are difficult to open when blocked by foreign objects, making it impossible to respond quickly and meet the safety escape needs in emergency situations.
A civil defense auxiliary escape sealing door was designed. By setting cavities, sealing heads, synchronization rings and fitting plates on the door panel, the sealing heads can be flexibly rotated and pushed out, which facilitates escape when blocked by foreign objects.
The impact resistance of the sealed door has been improved, ensuring that escape is still possible even when obstructed by foreign objects, thus enhancing escape efficiency and safety.
Smart Images

Figure CN223838976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil defense sealing door technology, specifically to a civil defense auxiliary escape sealing door. Background Technology
[0002] Civil defense airtight doors are doors used in civil defense projects. They are measures taken by the government to mobilize and organize the masses for air raid defense, disaster relief, and rescue. They are used to protect the lives and property of the people in extreme situations.
[0003] The current design of air-raid shelter doors generally requires that the door body have the function of explosion-proof and shock wave protection to protect the lives of people inside the door. However, there are still some problems in the use of existing sealed doors that need to be improved.
[0004] Existing airtight doors deform under significant impact, making them prone to jamming against walls when sliding along tracks, hindering escape. To address this, an additional exit is needed. However, conventional auxiliary escape doors often fail to open properly when obstructed by objects, hindering rapid evacuation. Therefore, structural improvements and optimizations to airtight doors are necessary to address these issues. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a civil defense auxiliary escape sealing door, which allows people inside the door to escape even if there are foreign objects stuck on the outside of the door.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a civil defense auxiliary escape sealing door, comprising a door panel, wherein a plurality of cavities are uniformly formed on the side wall surface of the door panel, a second extension ring is integrally formed inside each cavity, a sealing head is provided on the inner side of the second extension ring, a first extension ring is integrally formed on the outer edge of the sealing head, the first extension ring and the second extension ring are connected by threaded engagement, a synchronization ring is fixedly provided on the side of the sealing head facing the interior, a plurality of driven frames are uniformly arranged on the outer side of the synchronization ring, a fitting plate is provided on the side of the sealing head facing the exterior, a porous shock-absorbing pad is fixedly provided on the side surface of the fitting plate away from the sealing head, a plurality of connecting posts are provided on the outer edge of the porous shock-absorbing pad, and a through hole that mates with the connecting post is formed through the side surface of the door panel.
[0007] As a preferred technical solution of the civil defense auxiliary escape sealing door of this utility model, the sealing head is a disc-shaped component composed of two hollow hemispherical components spliced together, and the first extension ring and the second extension ring at the outer edge of the sealing head are used to further improve the structural strength of the sealing door.
[0008] As a preferred technical solution of the civil defense auxiliary escape sealing door of this utility model, a sealing plate is fitted on the side surface of the door panel, the sealing plate is located on the side of the sealing head facing the room, and a raised strip is integrally formed on the side surface of the sealing plate away from the door panel.
[0009] As a preferred technical solution of the civil defense auxiliary escape sealing door of this utility model, a blind hole is opened at the end of the connecting column, and a positioning column is provided on the side surface of the sealing plate facing the connecting column. The positioning column is inserted into the blind hole to limit and fix the sealing plate.
[0010] As a preferred technical solution of the civil defense auxiliary escape sealing door of this utility model, the surface of the interlocking plate facing the sealing head is symmetrically provided with an inner groove, and the inner groove is an L-shaped groove.
[0011] As a preferred technical solution of the civil defense auxiliary escape sealing door of this utility model, a stabilizing ring is fitted around the outer side of the porous shock-absorbing pad along the circumferential direction, and a pad is attached to the side surface of the stabilizing ring facing the sealing head.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The interlocking plate in this technical solution can improve the impact resistance of the door and make it easy for people inside the door to remove it. The sealing head is threaded to the door panel. The sealing head rotates synchronously with the synchronous ring, so that the sealing head is pushed out from both ends of the door panel. This allows people inside the door to escape if there are foreign objects stuck on the outside of the door.
[0014] 2. In this technical solution, the connecting column and the positioning column cooperate to facilitate the sealing plate and the stabilizing ring to seal the cavity area, which facilitates the concealment of the auxiliary escape components. The stabilizing ring on the outside of the porous shock-absorbing pad can further strengthen the structure of the porous shock-absorbing pad and further fill the gap area, which helps to maintain the structural stability. Attached Figure Description
[0015] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the door body during partial disassembly in this utility model;
[0018] Figure 3 In this utility model Figure 1 A schematic diagram of the rear structure;
[0019] Figure 4 As in this utility model Figure 3 A schematic diagram of the AA-line cross-sectional structure;
[0020] In the diagram: 1. Door panel; 2. Porous shock-absorbing pad; 3. Stabilizing ring; 4. Sealing head; 5. First extension ring; 6. Second extension ring; 7. Through hole; 8. Connecting post; 9. Synchronizing ring; 10. Driven frame; 11. Sealing plate; 12. Raised strip; 13. Fitting plate; 14. Inner groove; 15. Pad plate. Detailed Implementation
[0021] 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. Example
[0022] like Figure 1-4 As shown, the civil defense auxiliary escape sealing door of this utility model includes a door panel 1. Several cavities are evenly distributed on the side wall surface of the door panel 1. A second extension ring 6 is integrally formed inside each cavity. The function of the second extension ring 6 is to further enhance the structural strength of the door body, preventing deformation under large external impacts and avoiding interference with the operation of the auxiliary escape sealing door due to deformation. A sealing head 4 is provided inside the second extension ring 6. A first extension ring 5 is integrally formed at the outer edge of the sealing head 4. The function of the first extension ring 5 is to further enhance the structural strength and stability of the device structure. The first extension ring 5 and... The second extension ring 6 is connected by a threaded connection. A synchronizing ring 9 is fixedly installed on the side of the sealing head 4 facing the interior. The integral molding of the synchronizing ring 9 and the driven frame 10 makes it easier for the driven frame 10 to be installed on the sealing head 4. Several driven frames 10 are evenly arranged on the outer side of the synchronizing ring 9. A fitting plate 13 is provided on the side of the sealing head 4 facing the exterior. A porous shock-absorbing pad 2 is fixedly installed on the side surface of the fitting plate 13 away from the sealing head 4. The porous shock-absorbing pad 2 in this technical solution can be made of a porous rubber structure. Several connecting posts 8 are provided at the outer edge of the porous shock-absorbing pad 2. A through hole 7 that mates with the connecting post 8 is opened through the side surface of the door panel 1.
[0023] Specifically, the sealing head 4 is a disc-shaped component formed by splicing two hollow hemispherical components. The first extension ring 5 and the second extension ring 6 at the outer edge of the sealing head 4 are used to further enhance the structural strength of the sealing door. A sealing plate 11 is fitted onto the side surface of the door panel 1. The sealing plate 11 is located on the side of the sealing head 4 facing the interior. A protruding strip 12 is integrally formed on the side surface of the sealing plate 11 away from the door panel 1. In this embodiment, the protruding strip 12 facilitates the user to quickly remove or install the sealing plate 11. A blind hole is opened at the end of the connecting column 8. A positioning post is provided on the side surface of the sealing plate 11 facing the connecting column 8. The positioning post is inserted into the blind hole to limit and fix the sealing plate 11. In this embodiment, the porous shock-absorbing pad 2 can be unlocked simultaneously when the sealing plate 11 is disassembled.
[0024] Specifically, the mating plate 13 has symmetrically arranged inner grooves 14 on the side surface facing the sealing head 4. The inner grooves 14 are L-shaped grooves. In this embodiment, the inner grooves 14 facilitate the user to quickly perform operations on the mating plate 13.
[0025] Specifically, a stabilizing ring 3 is fitted around the outer side of the porous shock-absorbing pad 2 along the circumferential direction. A pad 15 is attached to the side of the stabilizing ring 3 facing the sealing head 4. In this embodiment, the stabilizing ring 3 improves the structural stability of the porous shock-absorbing pad 2, and the pad 15 can absorb a certain amount of impact force.
[0026] The working principle and usage process of this utility model: When the sealing door is deformed due to excessive external impact and cannot be opened during the use of this utility model, the user can pull the protruding strip 12 by hand. The protruding strip 12 synchronously drives the sealing plate 11 to move, so that the positioning post at the end of the sealing plate 11 separates from the connecting post 8. At this time, the sealing plate 11 can be removed from the door panel 1.
[0027] Afterwards, the staff can manually rotate the driven frame 10. When the driven frame 10 is running, it synchronously drives the synchronous ring 9 and the sealing head 4 to rotate. During the rotation of the sealing head 4, the gear thread transmission between the first extension ring 5 and the second extension ring 6 can push the sealing head 4 out from the inside of the door panel 1 or pull it out. When the user wants to push the sealing head 4 out from the inside of the door panel 1 to the outside and encounters an obstacle, that is, the outside is blocked by foreign objects, the synchronous ring 9 can be rotated in the opposite direction to push the sealing head 4 out from the inside of the door panel 1 to the inside. Then the user can pinch the inner groove 14 to pull the inlay plate 13 out of the cavity, and then use his hand to remove the porous shock-absorbing pad 2. This allows for gradual clearing from the inside to the outside, making it easier for people inside the door to escape if foreign objects are stuck on the outside of the door.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to further limit the present utility model. All equivalent changes made based on the description and drawings of the present utility model are within the protection scope of the present utility model.
Claims
1. A civil defense auxiliary escape sealing door, comprising a door panel (1), characterized in that: The side wall surface of the door panel (1) is uniformly provided with several cavities. A second extension ring (6) is integrally formed inside each cavity. A sealing head (4) is provided on the inner side of the second extension ring (6). A first extension ring (5) is integrally formed on the outer edge of the sealing head (4). The first extension ring (5) and the second extension ring (6) are connected by threaded engagement. A synchronization ring (9) is fixedly provided on the side of the sealing head (4) facing the interior. Several driven frames (10) are uniformly arranged on the outer side of the synchronization ring (9). A fitting plate (13) is provided on the side of the sealing head (4) facing the exterior. A porous shock-absorbing pad (2) is fixedly provided on the side surface of the fitting plate (13) away from the sealing head (4). Several connecting posts (8) are provided on the outer edge of the porous shock-absorbing pad (2). A through hole (7) that cooperates with the connecting post (8) is opened through the side surface of the door panel (1).
2. The civil defense auxiliary escape sealing door according to claim 1, characterized in that: The sealing head (4) is a disc-shaped component formed by splicing two hollow hemispherical components. The first extension ring (5) and the second extension ring (6) at the outer edge of the sealing head (4) are used to further enhance the structural strength of the sealing door.
3. The civil defense auxiliary escape sealing door according to claim 1, characterized in that: A sealing plate (11) is fitted onto the side surface of the door panel (1). The sealing plate (11) is located on the side of the sealing head (4) facing the interior. A raised strip (12) is integrally formed on the side surface of the sealing plate (1) away from the door panel (1).
4. The civil defense auxiliary escape sealing door according to claim 3, characterized in that: The end of the connecting column (8) is provided with a blind hole, and the sealing plate (11) is provided with a positioning column on the side surface facing the connecting column (8). The positioning column is inserted into the blind hole to limit and fix the sealing plate (11).
5. The civil defense auxiliary escape sealing door according to claim 1, characterized in that: The mating plate (13) has an inner groove (14) symmetrically arranged on the side surface facing the sealing head (4), and the inner groove (14) is an L-shaped groove.
6. A civil defense auxiliary escape sealing door according to claim 5, characterized in that: The outer side of the porous damping pad (2) is fitted with a stabilizing ring (3) along the circumferential direction, and a pad (15) is attached to the surface of the stabilizing ring (3) facing the sealing head (4).