A sealing door for civil air defense engineering

Abstract

The utility model relates to the technical field of civil air defence engineering protection equipment, provide a sealing door for civil air defence engineering, including door frame, the one side of door frame is hinged with door body, the one side of door body is provided with protection structure. The utility model discloses when the movable plate is in rotation, the movable plate will move the reinforcing rod in the inside of support plate through the hinged link, under the action of support plate, the stability of reinforcing rod when moving is strengthened, the reinforcing rod after moving will move to the inside of door frame, and then makes door body and door frame fixed each other, when rotating handle, makes the threaded column drive the gear teeth and gear abut, under the action of slide rod, the stability of gear teeth when moving is strengthened, under the limiting effect of gear teeth, prevent the reverse opening trend of swing link because of vibration, realize the function that the device is convenient for opening, fixed, thereby improved the applicability of the sealing door for civil air defence engineering when using.

Description

Technical Field

[0001] This utility model relates to the technical field of protective equipment for civil defense projects, and in particular to a sealing door for civil defense projects. Background Technology

[0002] Civil defense projects are underground protective structures specially built to ensure the shelter of personnel and materials, command of civil air defense, and medical rescue during wartime. Sealed doors are required in civil defense projects. Sealed doors are the core barrier to ensure the safety of the inside of the project. Therefore, a type of sealed door is used in civil defense projects.

[0003] To this end, patent CN218934230U discloses a civil defense safety sealing door, including a door frame and a door body. The door body is movably installed on one side of the door frame. A bottom groove that matches the door body is fixedly provided at the bottom end of one side of the door frame. Both the bottom end of the door body and the top end of the bottom groove are provided with matching ramps. A secondary sealing component that matches the bottom groove is movably installed at the bottom of the door body through a drive component. The drive component includes an installation groove. The beneficial effects of this utility model are: by matching the door body with the bottom groove, the bottom of the door body can be sealed once after closing, eliminating the gap between the door body and the ground when closed, greatly improving the sealing performance and ensuring the protective effect of the sealing door. At the same time, by driving the secondary sealing component to match the bottom groove through the drive component, a secondary seal can be performed, so that it can still play a sealing role after the primary seal fails, further improving the sealing performance and protective effect.

[0004] Although the aforementioned air-raid shelter security sealing door eliminates the gap between the door and the ground when closed, greatly improving the sealing performance and ensuring the protective effect of the sealing door, it is inconvenient to fix it in use. After the door is closed, it is not easy to prevent the reverse opening tendency caused by vibration through self-locking, which makes its applicability low. Utility Model Content

[0005] The purpose of this invention is to provide a sealing door for civil defense projects, in order to solve the problem that existing sealing doors for civil defense projects are inconvenient to fix.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a sealed door for civil defense projects, including a door frame;

[0007] A door body is hinged to one side of the door frame, a protective structure is provided on one side of the door body, and a fixing structure is installed on the other side of the door body;

[0008] The fixing structure includes a fixing frame fixed to one side of the door body. A rotating rod passes through the inside of the fixing frame. A movable plate is fixed to one end of the rotating rod, and a handwheel is fixed to the other end of the rotating rod. Both ends of one side of the movable plate are hinged to hinge rods. A reinforcing rod is hinged to one end of each hinge rod. A support plate is sleeved on the outside of each reinforcing rod.

[0009] A sealing structure is provided on the side of the door body away from the protective structure.

[0010] When using this device, the fixed structure enables it to be easily opened and secured, thereby improving the applicability of the sealed door used in civil defense projects; the protective structure enables it to be impact-resistant and radiation-resistant, thereby improving the convenience of use; and the sealing structure enables it to isolate toxic agents, thereby improving the sealing performance of the sealed door used in civil defense projects.

[0011] Preferably, the protective structure includes a reinforcing plate, an EMP shielding layer, and an anti-corrosion coating. The reinforcing plate is fixed to one side of the door, an EMP shielding layer is provided on one side of the reinforcing plate, and an anti-corrosion coating is provided on one side of the EMP shielding layer. The reinforcing plate prevents deformation of the door, enhancing its overall strength. The EMP shielding layer isolates external electromagnetic interference and protects internal equipment from electromagnetic pulses.

[0012] Preferably, the anti-corrosion coating is actually a chlorosulfonated polyethylene coating. This coating provides excellent corrosion resistance, effectively preventing external corrosive substances from eroding the door.

[0013] Preferably, a gear is fixed to the outer side of the rotating rod, a support frame is fixed to one side of the bottom of the fixing frame, a threaded column passes through the inside of the support frame, a handle is fixed to the bottom end of the threaded column, and teeth are rotatably connected to the top end of the threaded column. Sliding rods pass through the inside of the support frames on both sides of the threaded column. When the movable plate rotates, it drives the reinforcing rod to move inside the support plate via the hinge rod. Under the action of the support plate, the stability of the reinforcing rod during movement is enhanced. After moving, the reinforcing rod moves into the inside of the door frame, thereby fixing the door body and the door frame together.

[0014] Preferably, the reinforcing rod and the support plate form a sliding structure. One side of the support plate is fixedly connected to one side of the door body. The end of the reinforcing rod away from the hinge rod extends into the interior of the door frame. The teeth and gears are meshed. The threaded column and the support frame are threadedly connected. The slide rod and the support frame form a sliding structure. The top end of the slide rod is fixedly connected to the bottom end of the teeth. When the handle is rotated, the threaded column causes the teeth to engage with the gear. Under the action of the slide rod, the stability of the teeth during movement is enhanced. Under the limiting action of the teeth, the rotation rod is prevented from opening in the reverse direction due to vibration.

[0015] Preferably, the sealing structure includes a sealing strip, a cavity, and a mounting groove. The mounting groove is located on one side of the door body, and the sealing strip is disposed inside the mounting groove. The sealing strip has a cavity inside. The mounting groove facilitates the installation and fixing of the sealing strip, while the cavity compresses and deforms the sealing strip.

[0016] Preferably, the sealing strip and the door body form a sliding structure through a mounting groove, with one side of the sealing strip contacting one side of the door frame. The sealing strip enhances the seal between the door body and the door frame, ensuring a tight seal between them and preventing the entry of toxic agents.

[0017] The sealing door for civil defense projects provided by this utility model has the following advantages:

[0018] With a fixed structure, when the movable plate rotates, it drives the reinforcing rod to move inside the support plate via the hinge rod. Under the action of the support plate, the stability of the reinforcing rod during movement is enhanced. After moving, the reinforcing rod moves into the inside of the door frame, thus fixing the door body and the door frame together. At this time, turning the handle causes the threaded column to drive the teeth to collide with the gear. Under the action of the sliding rod, the stability of the teeth during movement is enhanced. Under the limiting action of the teeth, the rotating rod is prevented from opening in the opposite direction due to vibration. This realizes the function of easy opening and fixing of the device, thereby improving the applicability of the sealed door used in civil defense projects.

[0019] With its protective structure and reinforced plate, the door is protected from deformation, enhancing its overall strength. The EMP shielding layer isolates external electromagnetic interference and protects internal equipment from electromagnetic pulses. The anti-corrosion coating provides excellent corrosion resistance, effectively preventing external corrosive substances from damaging the door. This device offers impact and radiation protection, thus improving the ease of use of the sealed door for civil defense projects.

[0020] By incorporating a sealing structure and utilizing the mounting groove, the sealing strip can be easily installed and fixed. The cavity compresses and deforms the sealing strip, enhancing the seal between the door and the frame. This ensures a tight seal between the door and the frame, preventing the entry of toxic agents. The device effectively isolates toxic agents, thus improving the sealing performance of the sealed door used in civil defense projects. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0023] Figure 3 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0024] Figure 4 This is a three-dimensional structural schematic diagram of the side cross-section of the fixed structure of this utility model;

[0025] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0027] The following are the annotations in the diagram: 1. Door frame; 2. Door body; 3. Protective structure; 301. Reinforcing plate; 302. EMP shielding layer; 303. Anti-corrosion coating; 4. Fixing structure; 401. Fixing bracket; 402. Movable plate; 403. Hinge rod; 404. Support plate; 405. Reinforcing rod; 406. Rotating rod; 407. Handwheel; 408. Gear; 409. Tooth; 410. Threaded post; 411. Handle; 412. Support frame; 413. Slide rod; 5. Sealing structure; 501. Sealing strip; 502. Cavity; 503. Mounting groove. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-6The present invention provides a sealed door for civil defense projects, including a door frame 1, a door body 2 hinged to one side of the door frame 1, and a protective structure 3 provided on one side of the door body 2. The protective structure 3 includes a reinforcing plate 301, an EMP shielding layer 302, and an anti-corrosion coating 303. The reinforcing plate 301 is fixed to one side of the door body 2, and an EMP shielding layer 302 is provided on one side of the reinforcing plate 301. An anti-corrosion coating 303 is provided on one side of the EMP shielding layer 302. The anti-corrosion coating 303 is actually a chlorosulfonated polyethylene coating.

[0030] Reference Figure 5 and Figure 6 As shown, the reinforcing plate 301 prevents the door body 2 from deforming and enhances the overall strength of the door body 2. The EMP shielding layer 302 isolates external electromagnetic interference and protects internal equipment from electromagnetic pulses. The anti-corrosion coating 303 is actually a chlorosulfonated polyethylene coating, which has excellent corrosion resistance and can effectively prevent external corrosive substances from eroding the door body 2.

[0031] A fixing structure 4 is installed on the other side of the door body 2. The fixing structure 4 includes a fixing frame 401 fixed to one side of the door body 2. A rotating rod 406 passes through the inside of the fixing frame 401. A movable plate 402 is fixed to one end of the rotating rod 406, and a handwheel 407 is fixed to the other end of the rotating rod 406. Both ends of one side of the movable plate 402 are hinged to hinge rods 403. A reinforcing rod 405 is hinged to one end of each hinge rod 403. A support plate 404 is sleeved on the outside of each reinforcing rod 405. A gear 408 is fixed to the outside of the rotating rod 406. A support frame 412 is fixed to one side of the bottom of the fixing frame 401. A threaded column 410 passes through the inside of the support frame 412. A handle 411 is fixed to the bottom end of the threaded column 410, and a tooth 409 is rotatably connected to the top end of the threaded column 410. A slide rod 413 passes through the interior of the support frame 412 on both sides of the threaded column 410. A reinforcing rod 405 and a support plate 404 form a sliding structure. One side of the support plate 404 is fixedly connected to one side of the door body 2. The end of the reinforcing rod 405 away from the hinge rod 403 extends into the interior of the door frame 1. The tooth 409 and the gear 408 are meshed and connected. The threaded column 410 and the support frame 412 are designed with a threaded connection. The slide rod 413 and the support frame 412 form a sliding structure. The top end of the slide rod 413 is fixedly connected to the bottom end of the tooth 409.

[0032] Reference Figures 2-4As shown, rotating the handle 411 causes the threaded column 410 to rotate, which in turn causes the support frame 412 to rotate. The threaded column 410 causes the gear 409 to move up and down, and the gear 409 causes the slide rod 413 to move inside the support frame 412. Under the action of the slide rod 413, the stability of the gear 409 during movement is enhanced. When the gear 409 and the gear 408 are separated, rotating the handwheel 407 causes the movable plate 402 to rotate via the rotating rod 406. 2 will drive the reinforcing rod 405 to move inside the support plate 404 through the hinge rod 403. Under the action of the support plate 404, the stability of the reinforcing rod 405 during movement is enhanced. After moving, the reinforcing rod 405 will move to the inside of the door frame 1, thereby fixing the door body 2 and the door frame 1 to each other. At this time, turn the handle 411, so that the threaded column 410 drives the tooth 409 to abut against the gear 408. Under the limiting action of the tooth 409, the rotating rod 406 is prevented from opening in the reverse direction due to vibration.

[0033] A sealing structure 5 is provided on the side of the door body 2 away from the protective structure 3. The sealing structure 5 includes a sealing strip 501, a cavity 502 and a mounting groove 503. The mounting groove 503 is opened on one side of the door body 2. The sealing strip 501 is provided inside the mounting groove 503. The cavity 502 is provided inside the sealing strip 501. The sealing strip 501 and the door body 2 form a sliding structure through the mounting groove 503. One side of the sealing strip 501 is in contact with one side of the door frame 1.

[0034] Reference Figure 5 and Figure 6 As shown, pressing the sealing strip 501 moves it into the mounting groove 503. The mounting groove 503 facilitates the installation and fixing of the sealing strip 501. The cavity 502 compresses and deforms the sealing strip 501, enhancing the sealing between the door body 2 and the door frame 1 and ensuring that the door frame 1 and the door body 2 remain sealed to prevent toxic agents from entering.

[0035] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A sealed door for civil defense projects, comprising a door frame (1); Its features are: A door body (2) is hinged to one side of the door frame (1), a protective structure (3) is provided on one side of the door body (2), and a fixing structure (4) is installed on the other side of the door body (2); The fixed structure (4) includes a fixed frame (401) fixed to one side of the door body (2). A rotating rod (406) runs through the inside of the fixed frame (401). A movable plate (402) is fixed to one end of the rotating rod (406), and a handwheel (407) is fixed to the other end of the rotating rod (406). A hinge rod (403) is hinged to both ends of one side of the movable plate (402). A reinforcing rod (405) is hinged to one end of each hinge rod (403). A support plate (404) is sleeved on the outside of each reinforcing rod (405). A sealing structure (5) is provided on the side of the door body (2) away from the protective structure (3).

2. A sealing door for civil defense projects according to claim 1, characterized in that: The protective structure (3) includes a reinforcing plate (301), an EMP shielding layer (302), and an anti-corrosion coating (303). The reinforcing plate (301) is fixed to one side of the door (2). An EMP shielding layer (302) is provided on one side of the reinforcing plate (301), and an anti-corrosion coating (303) is provided on one side of the EMP shielding layer (302).

3. A sealing door for civil defense projects according to claim 2, characterized in that: The anti-corrosion coating (303) is actually a chlorosulfonated polyethylene coating.

4. A sealing door for civil defense projects according to claim 1, characterized in that: A gear (408) is fixed to the outside of the rotating rod (406), a support frame (412) is fixed to one side of the bottom of the fixing frame (401), a threaded column (410) runs through the inside of the support frame (412), a handle (411) is fixed to the bottom end of the threaded column (410), a tooth (409) is rotatably connected to the top end of the threaded column (410), and a sliding rod (413) runs through the inside of the support frames (412) on both sides of the threaded column (410).

5. A sealing door for civil defense projects according to claim 4, characterized in that: The reinforcing rod (405) and the support plate (404) form a sliding structure. One side of the support plate (404) is fixedly connected to one side of the door body (2). The end of the reinforcing rod (405) away from the hinge rod (403) extends into the interior of the door frame (1). The teeth (409) and the gear (408) are meshed. The threaded column (410) and the support frame (412) are designed with a threaded connection. The sliding rod (413) and the support frame (412) form a sliding structure. The top end of the sliding rod (413) is fixedly connected to the bottom end of the teeth (409).

6. A sealing door for civil defense projects according to claim 1, characterized in that: The sealing structure (5) includes a sealing strip (501), a cavity (502) and a mounting groove (503). The mounting groove (503) is located on one side inside the door body (2). The sealing strip (501) is provided inside the mounting groove (503), and the cavity (502) is provided inside the sealing strip (501).

7. A sealing door for civil defense projects according to claim 6, characterized in that: The sealing strip (501) and the door body (2) form a sliding structure through the mounting groove (503), and one side of the sealing strip (501) is in contact with one side of the door frame (1).

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