Civil air defense door steel with high-strength structure

By setting up a sealing frame and a rotating sleeve clamp structure on the civil defense door, the sealing problem caused by the gap between the door panel and the door frame is solved, high strength and good sealing are achieved, and harmful substances from outside are prevented from entering.

CN223202972UActive Publication Date: 2025-08-08SHANGHAI YANGTIAN TRADING CO LTD
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Patent Information

Application Number
CN202422396593.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-08-08
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

In the prior art, there is a gap between the door panel and the door frame of the civil defense door, resulting in a reduction in sealing and harmful substances from outside may enter.

Method used

By setting a sealing frame on the civil defense door body, a water pump is used to pump liquid into the sealing frame to expand it, blocking the gap between the frame and the civil defense door body, and achieving limit locking of the door through the rotating sleeve and clamping structure.

Benefits of technology

Enhance the sealing of the civil defense door, preventing the entry of harmful substances from outside, and ensuring the safety and reliability of the door.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223202972U_ABST
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Abstract

The utility model relates to the technical field of civil air defense doors, and discloses civil air defense door steel with a high-strength structure. The civil air defense door steel with the high-strength structure comprises a frame, a civil air defense door body, a rotating rod, a coded lock, an electronic lock, a rotating shaft, a rotating disc and a straight gear, the rotating rod is fixedly connected to the frame, the civil air defense door body is rotatably arranged on the rotating rod, the coded lock is installed on the civil air defense door body, and the electronic lock is installed on the rotating shaft. A plurality of electronic locks are arranged in the civil air defense door body, the coded locks are electrically connected with the electronic locks, rotating shafts are rotationally arranged on the front side and the rear side of the civil air defense door body, rotating discs are fixedly connected to the ends, away from the civil air defense door body, of the rotating shafts, and straight gears are rotationally arranged in the civil air defense door body. The liquid enters the sealing frame through the water outlet pipe, so that the sealing frame is filled with the liquid and expands, the gap between the frame and the civil defense door body is shielded, the sealing performance is enhanced, and external harmful substances are prevented from entering.
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Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense doors and discloses a civil air defense door steel material with a high-strength structure. Background Art

[0002] Civil air defense doors are protective devices used specifically in civil air defense projects. Their primary function is to protect personnel and facilities during wartime or emergencies, preventing damage from explosion shock waves, radioactive fallout, and other hazards. The design and manufacturing requirements for civil air defense doors are extremely stringent, requiring them to possess excellent airtightness, impact resistance, and a certain level of protection.

[0003] The patent with patent authorization announcement number CN221220258U discloses a civil defense door, including a door frame and a door panel, a main shaft rotatably connected to the door panel, a cavity is provided in the door panel, and a driving gear is fixedly connected to the main shaft. Although the above patent provides a reinforcing component in the cavity to strengthen the locking strength of the door panel, there is still a certain gap between the door panel and the door frame during actual use. If the gap is not blocked, the sealing of the civil defense door will be reduced, which may cause harmful substances from the outside to enter.

[0004] Therefore, there is a need for a high-strength civil defense door steel with good sealing performance. Utility Model Content

[0005] In order to overcome the disadvantage that a certain gap still exists between the door panel and the door frame during actual use of the existing patent, which will reduce the sealing of the civil air defense door if the gap is not blocked, thereby possibly causing the entry of harmful substances from the outside, the utility model provides a high-strength structural civil air defense door steel with good sealing performance.

[0006] The technical implementation scheme of the present utility model is: a high-strength structure of civil defense door steel, including a frame, a civil defense door body, a rotating rod, a password lock, an electronic lock, a rotating shaft, a rotating disk, a spur gear, a rack rod, a clamping rod and a limiting hole. The frame is fixedly connected with a rotating rod, a civil defense door body is rotatably arranged on the rotating rod, a password lock is installed on the civil defense door body, a plurality of electronic locks are arranged inside the civil defense door body, the password lock is electrically connected to the electronic lock, a rotating shaft is rotatably arranged on both sides of the civil defense door body, a rotating disk is fixedly connected to the end of the rotating shaft away from the civil defense door body, a spur gear is rotatably arranged inside the civil defense door body, and both rotating shafts are connected to the spur gear. Connection, multiple card holes are opened on the spur gear, the electronic lock is stuck in the card holes, two rack rods are slidingly set inside the civil air defense door body, the two rack rods are engaged with the spur gear, and multiple card rods are fixedly connected to the rack rods. Multiple limiting holes are opened on the left and right sides of the frame, and the card rods are stuck in the limiting holes. It also includes a sealing frame, a connecting pipe, a water tank, a water pump, a water suction pipe and a water outlet pipe. A sealing frame is pasted on the civil air defense door body, and a water tank is installed on the rear side of the civil air defense door body. The top of the water tank is connected and connected with a water suction pipe. A water pump is provided on the water suction pipe, and the water pump is connected to the water outlet pipe. Both ends of the water outlet pipe are connected with connecting pipes, and the connecting pipe is connected to the sealing frame.

[0007] Optionally, it also includes a sleeve and a card plate. A plurality of card slots are opened on the rear side of the frame. A plurality of sleeves are rotatably arranged on the rear side of the civil defense door body. Each sleeve is fixedly connected to a card plate, and the card plate is inserted into the card slot.

[0008] Optionally, it also includes a lifting plate, a ball bearing, a connecting plate and a threaded rod. The lifting plate is slidingly arranged on multiple sleeves. The lifting plate is provided with multiple ball bearings. A transmission groove is opened inside each sleeve. The ball bearings slide on the transmission groove. The connecting plate is fixedly connected to the lifting plate. A threaded rod is rotatably arranged on the rear side of the civil defense door body. The threaded rod is threadedly connected to the connecting plate.

[0009] Optionally, a transparent plate is further included, and the water tank is embedded with the transparent plate.

[0010] Optionally, a protective pad is also included, and a protective pad is provided on the front side of the civil defense door body.

[0011] Optionally, a support plate is also included. The support plate is arranged inside the civil defense door body, and the connecting pipe passes through the support plate.

[0012] Compared with the existing technology, the utility model provides a high-strength structural steel for civil defense doors, which has the following beneficial effects: 1. When the water pump is running, the liquid in the water tank is pumped into the water outlet pipe through the suction pipe, and then enters the inside of the sealing frame through the water outlet pipe, so that the sealing frame is filled with liquid and expands, thereby blocking the gap between the frame and the civil defense door body, thereby enhancing the sealing and preventing harmful substances from the outside from entering.

[0013] 2. Rotate the sleeve. The rotation of the sleeve drives the card to rotate, so that the card is stuck in the positioning slot, and then the civil air defense door body is limited on the frame, thereby preventing the civil air defense door from opening accidentally.

[0014] 3. The sliding of the ball drives the sleeve to rotate 180 degrees, thereby realizing the simultaneous rotation of multiple sleeves, making it easy to quickly disengage the card plate from the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a three-dimensional structural diagram of the frame, civil air defense door body and password lock of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional view of the rack rod and the clamping rod of the utility model.

[0018] Figure 4 It is a three-dimensional structural diagram of the rotating disk and spur gear of the utility model.

[0019] Figure 5 It is a three-dimensional cross-sectional view of the sleeve, the clamping plate and the lifting plate of the utility model.

[0020] Figure 6 It is a three-dimensional cross-sectional view of the ball, connecting plate and threaded rod of the utility model.

[0021] Figure 7 It is a three-dimensional cross-sectional view of the sleeve and the clamping plate of the utility model.

[0022] Figure 8 This is a three-dimensional cross-sectional view of the sealing frame, support plate and connecting pipe of the utility model.

[0023] Figure 9 It is a three-dimensional structural diagram of the utility model water pump, water suction pipe and water outlet pipe.

[0024] The meanings of the reference numerals in the figure are: 1. frame, 2. civil air defense door body, 3. rotating rod, 4. password lock, 5. electronic lock, 6. rotating shaft, 7. rotating disk, 8. spur gear, 80. card hole, 9. rack rod, 10. card rod, 11. limiting hole, 12. card slot, 13. sleeve, 14. card plate, 15. lifting plate, 16. ball bearing, 17. transmission slot, 18. connecting plate, 19. threaded rod, 20. sealing frame, 21. support plate, 22. connecting pipe, 23. water tank, 24. water pump, 25. water suction pipe, 26. water outlet pipe, 27. transparent plate, 28. protective pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: A high-strength steel structure for civil air defense doors, see Figures 1-9 , including a frame 1, a civil defense door body 2, a rotating rod 3, a password lock 4, an electronic lock 5, a rotating shaft 6, a rotating disk 7, a spur gear 8, a rack rod 9, a card rod 10 and a limit hole 11. The rotating rod 3 is fixedly connected to the frame 1. The civil defense door body 2 is rotatably provided on the rotating rod 3. The civil defense door body 2 is provided with a password lock 4 by bolt connection. Several electronic locks 5 are provided inside the civil defense door body 2. The password lock 4 is electrically connected to the electronic lock 5. The front and rear sides of the civil defense door body 2 are rotatably provided with a rotating shaft 6. The rotating disk 7 is fixedly connected to the end of the rotating shaft 6 away from the civil defense door body 2. A spur gear 8 is rotatably provided inside the civil defense door body 2. The two rotating shafts 6 are connected to the spur gear 8. The spur gear 8 is provided with a number of card holes 80. The electronic lock 5 is snapped into the card hole 80. Two rack rods 9 are slidingly provided inside the civil defense door body 2. The two rack rods 9 are meshed with the spur gear 8. Eight card rods 1 are fixedly connected to the rack rod 9 0, eight limiting holes 11 are provided on the left and right sides of the frame 1, and the card rod 10 is stuck in the limiting hole 11, and a sealing frame 20 is pasted on the civil air defense door body 2. A water tank 23 is provided on the rear side of the civil air defense door body 2 by bolt connection. The top of the water tank 23 is connected and connected with a water suction pipe 25, and a water pump 24 is provided on the water suction pipe 25. The water pump 24 is connected with a water outlet pipe 26. Both ends of the water outlet pipe 26 are connected with connecting pipes 22, and the connecting pipe 22 is connected with the sealing frame 20. A transparent plate 27 is embedded in the water tank 23, and the transparent plate 27 is used to facilitate viewing the liquid level in the water tank 23. A protective pad 28 is provided on the front side of the civil air defense door body 2. When hit, the protective pad 28 returns the civil air defense door body 2 to prevent the civil air defense door body 2 from being damaged. A support plate 21 is provided inside the civil air defense door body 2, and the connecting pipe 22 passes through the support plate 21. The support plate 21 reinforces the connecting pipe 22 to prevent the connecting pipe 22 from bending.

[0027] When the civil air defense door needs to be used, the frame 1 is moved to a suitable position and then professional technicians complete the installation. After the installation is completed, the water pump 24 is started. The water pump 24 runs to pump the liquid in the water tank 23 into the water outlet pipe 26 through the suction pipe 25, and then enters the inside of the sealing frame 20 through the water outlet pipe 26, so that the sealing frame 20 is filled with liquid and expands, thereby covering the gap between the frame 1 and the civil air defense door body 2, thereby enhancing the sealing and preventing external harmful substances from entering. When the civil air defense door needs to be opened, the water pump 24 is first started again. The water pump 24 draws the liquid inside the sealing frame 20 back to the suction pipe 25 through the water outlet pipe 26. The liquid flows back into the water tank 23 through the suction pipe 25, thereby reducing the amount of liquid in the sealing frame 20 and causing the sealing frame 20 to shrink, making it easier to open the civil defense door later. Next, enter the correct password on the password lock 4 to unlock the electronic lock 5 so that it is no longer engaged with the spur gear 8. Then, hold the rotating disk 7 and rotate the rotating shaft 6. The rotation of the rotating shaft 6 drives the spur gear 8 to rotate. Under the meshing action of the spur gear 8 and the rack rods 9 on both sides, the rack rod 9 moves inward, thereby driving the card rod 10 to move inward, so that it is disengaged from the limit hole 11 and no longer limits the civil defense door body 2. At this time, the civil defense door body 2 is rotated inward to open the civil defense door.

[0028] Example 2: Based on Example 1, please refer to Figure 5 、 Figure 6 and Figure 7 Eight card slots 12 are opened on the rear side of the frame 1, and four sleeves 13 are rotatably set on the rear side of the civil defense door body 2. Each sleeve 13 is fixedly connected to a card plate 14, and the card plate 14 is snapped into the card slot 12.

[0029] After entering the protective place and closing the civil defense door, rotate the sleeve 13. The rotation of the sleeve 13 drives the card plate 14 to rotate, so that the card plate 14 is locked into the locking groove 12, and then the civil defense door body 2 is limited on the frame 1, thereby preventing the civil defense door from opening accidentally.

[0030] See also Figure 5 、 Figure 6 and Figure 7 The four sleeves 13 are slidingly provided with a lifting plate 15, and the lifting plate 15 is provided with four balls 16. A transmission groove 17 is opened inside each sleeve 13, and the ball 16 slides on the transmission groove 17. A connecting plate 18 is fixedly connected to the lifting plate 15, and a threaded rod 19 is rotatably provided on the rear side of the civil defense door body 2, and the threaded rod 19 is threadedly connected to the connecting plate 18.

[0031] When the limit lock needs to be unlocked, the threaded rod 19 is rotated to make the connecting plate 18 drive the lifting plate 15 to move outward, thereby making the ball 16 slide along the transmission groove 17. The sliding of the ball 16 drives the sleeve 13 to rotate 180 degrees, thereby realizing the simultaneous rotation of multiple sleeves 13, making it convenient to quickly disengage the clamping plate 14 from the clamping groove 12.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength structure of a civil air defense door steel material, comprising a frame (1), a civil air defense door body (2), a rotating rod (3), a password lock (4), an electronic lock (5), a rotating shaft (6), a rotating disk (7), a spur gear (8), a rack rod (9), a clamping rod (10) and a limiting hole (11), wherein the rotating rod (3) is fixedly connected to the frame (1), the civil air defense door body (2) is rotatably arranged on the rotating rod (3), the password lock (4) is installed on the civil air defense door body (2), a plurality of electronic locks (5) are arranged inside the civil air defense door body (2), the password lock (4) is electrically connected to the electronic lock (5), the front and rear sides of the civil air defense door body (2) are rotatably arranged with rotating shafts (6), the rotating shafts (6) A rotating disk (7) is fixedly connected to one end away from the civil defense door body (2), a spur gear (8) is rotatably provided inside the civil defense door body (2), two rotating shafts (6) are connected to the spur gear (8), a plurality of card holes (80) are provided on the spur gear (8), and the electronic lock (5) is inserted into the card holes (80), two rack rods (9) are slidably provided inside the civil defense door body (2), the two rack rods (9) are meshed with the spur gear (8), a plurality of card rods (10) are fixedly connected to the rack rod (9), a plurality of limiting holes (11) are provided on the left and right sides of the frame (1), and the card rods (10) are inserted into the limiting holes (11), characterized in that, The invention also includes a sealing frame (20), a connecting pipe (22), a water tank (23), a water pump (24), a water pumping pipe (25) and a water outlet pipe (26). The sealing frame (20) is pasted on the civil air defense door body (2). The water tank (23) is installed on the rear side of the civil air defense door body (2). The top of the water tank (23) is connected to and communicated with the water pumping pipe (25). The water pump (24) is provided on the water pumping pipe (25). The water pump (24) is connected to the water outlet pipe (26). Both ends of the water outlet pipe (26) are connected to the connecting pipe (22). The connecting pipe (22) is communicated with the sealing frame (20).

2. A high-strength steel material for civil air defense doors according to claim 1, characterized in that: It also includes a sleeve (13) and a clamping plate (14). A plurality of clamping slots (12) are provided on the rear side of the frame (1). A plurality of sleeves (13) are rotatably provided on the rear side of the civil air defense door body (2). Each sleeve (13) is fixedly connected to a clamping plate (14), and the clamping plate (14) is clamped into the clamping slot (12).

3. A high-strength steel material for civil air defense doors according to claim 2, characterized in that: It also includes a lifting plate (15), a ball (16), a connecting plate (18) and a threaded rod (19). A plurality of sleeves (13) are slidably provided with a lifting plate (15). The lifting plate (15) is provided with a plurality of ball (16). A transmission groove (17) is provided inside each sleeve (13). The ball (16) slides on the transmission groove (17). The connecting plate (18) is fixedly connected to the lifting plate (15). A threaded rod (19) is rotatably provided on the rear side of the civil defense door body (2). The threaded rod (19) is threadedly connected to the connecting plate (18).

4. A high-strength steel material for civil air defense doors according to claim 3, characterized in that: It also includes a transparent plate (27), which is embedded in the water tank (23).

5. A high-strength steel material for civil air defense doors according to claim 4, characterized in that: It also includes a protective pad (28), and the front side of the civil defense door body (2) is provided with a protective pad (28).

6. The high-strength steel material for civil air defense doors according to claim 5, characterized in that: It also includes a support plate (21), the support plate (21) is arranged inside the civil air defense door body (2), and the connecting pipe (22) passes through the support plate (21).

Citation Information

Patent Citations

  • Civil air defense door

    CN221220258U