Corrosion-resistant long-life civil air defense door

Abstract

The utility model belongs to the technical field of corrosion-resistant civil air defense doors, and particularly relates to a corrosion-resistant long-life civil air defense door which comprises a civil air defense door body, a first partition strip, a second partition strip and a third partition strip are fixedly mounted on the outer side of the civil air defense door body, and the first partition strip, the second partition strip and the third partition strip are fixedly mounted on the outer side of the civil air defense door body. A sliding groove is fixedly formed in the side face of the civil air defense door body, and when the civil air defense door is used, the first partition strip, the second partition strip, the third partition strip, the supporting plate and the corrosion-resistant door plate are matched, and corrosive gas or liquid can be partitioned through the first partition strip; corrosive gas and liquid can be subjected to second-step partition and third-step partition through a second partition strip and a third partition strip, a supporting plate is arranged in the body, the strength of the body can be improved and the weight of the body can be reduced through the supporting plate, the corrosion-resistant door plate is structurally divided into two parts, the interior is made of an SMC material, and the exterior is made of a stainless steel material; therefore, the corrosion resistance and the service life of the device can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of corrosion-resistant civil defense doors, specifically relating to corrosion-resistant and long-life civil defense doors. Background Technology

[0002] Civil defense doors, officially known as entrance doors for civil defense projects, are an important component of civil air defense engineering. They typically possess functions such as waterproofing, explosion-proofing, and resistance to air pollution. Especially during wartime or natural disasters, civil defense doors provide safe refuge for personnel. Civil defense doors are clearly classified, including ordinary single and double-leaf protective airtight doors and airtight doors, as well as single and double-leaf protective airtight doors and airtight doors with movable thresholds, among other types. Based on their design and purpose, civil defense doors can be categorized into various types, each with its specific functions and application scenarios.

[0003] Some air defense doors are installed in complex environments, requiring them to have good corrosion resistance to meet the needs of use in special environments. Corrosion-resistant air defense doors refer to doors used in civil protection projects with good corrosion resistance. These doors are usually used in military defense fortifications, underground shelters, and other places to ensure long-term durability and safety under various environmental conditions. Although existing corrosion-resistant air defense doors have good corrosion resistance, their closing structure is relatively simple, which affects the sealing effect of the air defense doors. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a corrosion-resistant, long-life air-raid shelter door, which solves the problem that although existing corrosion-resistant air-raid shelter doors have good corrosion resistance, their closing structure is relatively simple, thus affecting the sealing effect of the air-raid shelter door.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant, long-life air-raid shelter door, comprising a door body, a first partition strip fixedly installed on the outer side of the door body, a second partition strip fixedly installed on the outer side of the door body, a third partition strip fixedly installed on the outer side of the door body, a sliding groove fixedly installed on the side of the door body, a second body connecting block fixedly installed on the side of the door body, a locking rod movably installed inside the second body connecting block, a telescopic cavity connecting block fixedly installed at one end of the locking rod, four sets of the second body connecting blocks and locking rods, and a support fixedly installed on the side of the door body. The system includes a wheel mounting block, with a support wheel movably mounted inside the support wheel mounting block. The air-raid shelter door body has two sets of support plates inside. Corrosion-resistant door panels are provided on both sides of the air-raid shelter door body. A third body connecting block is fixedly mounted on the side of the air-raid shelter door body. A rotating wheel mounting block is fixedly mounted inside the third body connecting block. A rotating wheel is located inside the rotating wheel mounting block, and a drive tooth block is fixedly mounted at one end of the rotating wheel. A threaded rod mounting block is fixedly mounted inside the third body connecting block, and a threaded rod is movably mounted inside the threaded rod mounting block, with one end of the threaded rod penetrating the interior of the first body connecting block.

[0006] Preferably, a body mounting block is fixedly installed on the side of the air defense door body, and a first body connecting block is fixedly installed on the side of the air defense door body.

[0007] Preferably, the side of the air defense door body is fixedly installed with door bolts, and there are two sets of door bolts.

[0008] Preferably, the number of threaded rods is two sets, and the thread directions of the two sets of threaded rods are opposite.

[0009] Preferably, a threaded rod connecting tooth is fixedly installed at one end of the threaded rod, and a threaded block is installed on the outer thread of the threaded rod.

[0010] Preferably, a telescopic rod mounting shaft is movably mounted inside the threaded block, and a telescopic rod is movably mounted outside the telescopic rod mounting shaft.

[0011] Preferably, a telescopic cavity is movably installed on the outer side of the telescopic rod, and one end of the telescopic cavity is movably connected to one end of the telescopic cavity connecting block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In use, it works in conjunction with a first partition strip, a second partition strip, a third partition strip, a support plate, and a corrosion-resistant door panel. The first partition strip can isolate corrosive gases or liquids, while the second and third partition strips can provide second and third-level isolation. The main body is equipped with a support plate, which can improve the strength of the main body and reduce its weight. The corrosion-resistant door panel has a two-part structure, with an internal SMC material and an external stainless steel material, thereby improving the corrosion resistance and service life of the device. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a first sectional view of the present invention;

[0018] Figure 4 This is a second cross-sectional view of the present invention.

[0019] In the diagram: 1. Air raid shelter door body; 2. Body mounting block; 3. First body connecting block; 4. First partition strip; 5. Second partition strip; 6. Third partition strip; 7. Slide groove; 8. Second body connecting block; 9. Locking rod; 10. Support wheel mounting block; 11. Support wheel; 12. Support plate; 13. Corrosion-resistant door panel; 14. Third body connecting block; 15. Rotating wheel mounting block; 16. Door bolt; 17. Rotating wheel; 18. Drive gear block; 19. Threaded rod mounting block; 20. Threaded rod; 21. Threaded rod connecting tooth; 22. Threaded block; 23. Telescopic rod mounting shaft; 24. Telescopic rod; 25. Telescopic cavity; 26. Telescopic cavity connecting block. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This utility model provides the following technical solution: a corrosion-resistant, long-life air-raid shelter door, comprising a door body 1, characterized in that: a first partition strip 4 is fixedly installed on the outer side of the door body 1; a second partition strip 5 is fixedly installed on the outer side of the door body 1; a third partition strip 6 is fixedly installed on the outer side of the door body 1; a sliding groove 7 is fixedly installed on the side of the door body 1; a second body connecting block 8 is fixedly installed on the side of the door body 1; a locking rod 9 is movably installed inside the second body connecting block 8; a telescopic cavity connecting block 26 is fixedly installed at one end of the locking rod 9; the number of the second body connecting blocks 8 and the locking rod 9 is four sets; a support wheel mounting block 10 is fixedly installed on the side of the door body 1; and the support wheel... The mounting block 10 has a support wheel 11 installed inside. The air defense door body 1 has a support plate 12 inside. There are two sets of support plates 12. Corrosion-resistant door panels 13 are provided on both sides of the air defense door body 1. The side of the air defense door body 1 is fixedly installed with a third body connecting block 14. The third body connecting block 14 has a rotating wheel mounting block 15 fixedly installed inside. The rotating wheel mounting block 15 has a rotating wheel 17 inside. One end of the rotating wheel 17 is fixedly installed with a drive tooth block 18. The third body connecting block 14 has a threaded rod mounting block 19 fixedly installed inside. The threaded rod mounting block 19 has a threaded rod 20 installed inside. One end of the threaded rod 20 passes through the interior of the first body connecting block 3.

[0022] In this embodiment: the first partition strip 4 can initially isolate corrosive gases or liquids, and the second partition strip 5 and the third partition strip 6 can isolate corrosive gases and liquids in the second and third steps, respectively. A support plate 12 is provided inside the main body, which can improve the strength of the main body and reduce its weight. The corrosion-resistant door panel 13 is divided into two parts, with SMC material inside and stainless steel material outside, thereby improving the corrosion resistance and service life of the device.

[0023] In this embodiment: by rotating the rotating wheel 17, the rotating wheel mounting block 15 can drive the drive tooth block 18 to rotate. The rotating wheel mounting block 15 is provided with a locking block inside, which can block one side of the rotating wheel 17 after it has rotated, thereby ensuring the stable operation of the device. The rotation of the drive tooth block 18 can drive the threaded rod connecting tooth 21 that meshes with it to rotate. The rotation of the threaded rod connecting tooth 21 can drive the threaded rod 20 that is fixedly connected to it to rotate, thereby driving the threaded block 22 that is threaded to it to move. This method can drive the locking module to move by rotating the two sets of threaded rods 20 and driving the two sets of threaded blocks 22 to move.

[0024] In this embodiment: the movement of the threaded block 22 can drive the movement of the telescopic rod mounting shaft 23, which in turn drives the movement of the telescopic rod 24 connected to it. The telescopic rod 24 is movably installed inside the telescopic cavity 25. The movement of the telescopic rod 24 inside the telescopic cavity 25 can drive the movement of the telescopic cavity 25. One end of the telescopic cavity 25 is movably connected to the connecting shaft inside the telescopic cavity connecting block 26, thereby driving the telescopic cavity connecting block 26 to move. One end of the connecting shaft inside the telescopic cavity connecting block 26 slides inside the slide groove 7, thereby driving the locking rod 9, which is movably installed inside the second body connecting block 8, to move in both the vertical and horizontal directions of the body. Thus, the locking rod 9 is engaged inside the slot, realizing the sealing operation of the air defense door. Afterwards, the door bolt 16 can improve the sealing effect of the device.

[0025] The working principle and usage process of this utility model are as follows: After installation, the first partition strip 4 provides initial isolation from corrosive gases or liquids. The second and third partition strips 5 and 6 provide second and third-level isolation from corrosive gases and liquids, respectively. A support plate 12 is installed inside the main body to increase its strength and reduce its weight. The corrosion-resistant door panel 13 is divided into two parts: an internal SMC material and an external stainless steel material, thereby improving the device's corrosion resistance and service life. Rotating the rotating wheel 17, in conjunction with the rotating wheel mounting block 15, drives the drive gear block 18 to rotate. The rotating wheel mounting block 15 has a locking block inside, which blocks one side of the rotating wheel 17 after it has rotated, ensuring stable operation. The rotation of the drive gear block 18 drives the threaded rod connecting tooth 21, which in turn drives the threaded rod 20, which is fixedly connected to it, to rotate. This, in turn, moves the threaded block 22, which is threaded to it. This method allows for the movement of two sets of threads. Rotating rod 20 drives two sets of threaded blocks 22 to move, thereby driving the snap-fit ​​module to move. The movement of the threaded blocks 22 drives the telescopic rod mounting shaft 23 to move, which in turn drives the telescopic rod 24 connected to it to move. The telescopic rod 24 is movably installed inside the telescopic cavity 25. The movement of the telescopic rod 24 inside the telescopic cavity 25 drives the telescopic cavity 25 to move. One end of the telescopic cavity 25 is movably connected to the connecting shaft inside the telescopic cavity connecting block 26, thereby driving the telescopic cavity connecting block 26 to move. One end of the connecting shaft inside the telescopic cavity connecting block 26 slides inside the slide groove 7, thereby driving the snap-fit ​​rod 9, which is movably installed inside the second body connecting block 8, to move in both the vertical and horizontal directions of the body. The snap-fit ​​rod 9 is then snapped into the slot, achieving the sealing operation of the air defense door. The door bolt 16 further enhances the sealing effect of the device. The entire drive structure of this device is mechanical, avoiding dependence on electricity and thus meeting the needs of long-term use. All electrical equipment in this device is powered by an external power source.

[0026] 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 corrosion-resistant, long-life air-raid shelter door, comprising the air-raid shelter door body (1), characterized in that: A first partition strip (4) is fixedly installed on the outer side of the air-raid shelter door body (1). A second partition strip (5) is fixedly installed on the outer side of the air-raid shelter door body (1). A third partition strip (6) is fixedly installed on the outer side of the air-raid shelter door body (1). A sliding groove (7) is fixedly installed on the side of the air-raid shelter door body (1). A second body connecting block (8) is fixedly installed on the side of the air-raid shelter door body (1). A locking rod (9) is movably installed inside the second body connecting block (8). A telescopic cavity connecting block (26) is fixedly installed at one end of the locking rod (9). There are four sets of the second body connecting block (8) and the locking rod (9). A support wheel mounting block (10) is fixedly installed on the side of the air-raid shelter door body (1). A support wheel (11) is movably installed inside the support wheel mounting block (10). The air defense door body (1) is provided with a support plate (12) inside, and there are two sets of support plates (12). Corrosion-resistant door panels (13) are provided on both sides of the air defense door body (1). A third body connecting block (14) is fixedly installed on the side of the air defense door body (1). A rotating wheel mounting block (15) is fixedly installed inside the third body connecting block (14). A rotating wheel (17) is provided inside the rotating wheel mounting block (15). A driving tooth block (18) is fixedly installed at one end of the rotating wheel (17). A threaded rod mounting block (19) is fixedly installed inside the third body connecting block (14). A threaded rod (20) is movably installed inside the threaded rod mounting block (19), and one end of the threaded rod (20) penetrates the interior of the first body connecting block (3).

2. The corrosion-resistant, long-life air-raid shelter door according to claim 1, characterized in that: A body mounting block (2) is fixedly installed on the side of the body of the air defense door (1), and a first body connecting block (3) is fixedly installed on the side of the body of the air defense door (1).

3. The corrosion-resistant, long-life air-raid shelter door according to claim 1, characterized in that: The side of the air defense door body (1) is fixedly equipped with door bolts (16), and there are two sets of door bolts (16).

4. The corrosion-resistant, long-life air-raid shelter door according to claim 1, characterized in that: The number of threaded rods (20) is two sets, and the thread directions of the two sets of threaded rods (20) are opposite.

5. The corrosion-resistant, long-life air-raid shelter door according to claim 1, characterized in that: One end of the threaded rod (20) is fixedly installed with a threaded rod connecting tooth (21), and a threaded block (22) is installed on the outer thread of the threaded rod (20).

6. The corrosion-resistant, long-life air-raid shelter door according to claim 5, characterized in that: The threaded block (22) has a telescopic rod mounting shaft (23) movably installed inside, and a telescopic rod (24) is movably installed on the outside of the telescopic rod mounting shaft (23).

7. The corrosion-resistant, long-life air-raid shelter door according to claim 6, characterized in that: The telescopic rod (24) has a telescopic cavity (25) movably installed on its outer side, and one end of the telescopic cavity (25) is movably connected to one end of the telescopic cavity connecting block (26).

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