Civil air defense electric control door

By using a combination of sealing covers and desiccants in the design of the electric gate for civil defense, the problem of gear corrosion has been solved, the gear life has been extended, the transmission efficiency has been improved, and the electric gate can be operated normally in a humid environment.

CN118498869BActive Publication Date: 2026-07-21江苏拓华人防设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
江苏拓华人防设备有限公司
Filing Date
2024-06-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The humid environment causes the surface of the gears of the air-raid shelter's electronic control gate to rust, and the wear and corrosion reduce the transmission efficiency.

Method used

The design employs a combination of a sealing cover, desiccant, contact rod, auxiliary block, iron strip, and magnetic strip. The sealing cover encloses the gear, the desiccant absorbs moisture from the air, and the iron strip and magnetic strip are magnetically connected to enhance the seal and prevent gear corrosion.

Benefits of technology

It extends the service life of gears, improves transmission efficiency, prevents gears from rusting due to humid environments, and ensures the normal operation of the electric control door.

✦ Generated by Eureka AI based on patent content.

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    Figure CN118498869B_ABST
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Abstract

The application discloses a civil air defense electric control door, which comprises a frame and a door body, the door body is arranged on one side of the frame, a transmission shaft is arranged on one side of the frame, the door body is arranged on one end of the transmission shaft, a second gear is arranged on the other end of the transmission shaft, a servo motor is arranged on one side of the frame, a first gear is connected to the output shaft of the servo motor, a sealing cover is arranged on the top of the frame, a dehumidification box is arranged on one side of the sealing cover, and a plurality of drying agents are filled in the dehumidification box. The sealing cover, the drying agents, the contact rod, the auxiliary block, the iron bar and the magnet bar are arranged, the first gear and the second gear are wrapped by the sealing cover, the gears are arranged in a closed space, rust caused by long-time contact with humid air is avoided, the service life of the first gear and the second gear is prolonged, the auxiliary block gradually moves on one end of the supporting rod, the iron bar gradually approaches the magnet bar, and the firmness of the sealing cover and the dehumidification box is improved.
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Description

Technical Field

[0001] This invention relates to the field of electric control door technology, and in particular to an electric control door for civil defense. Background Technology

[0002] Civil defense electronic control doors typically refer to access control systems used in security-sensitive environments that are operated by electronic control systems. Through motors, transmission devices, and control systems, the doors can open and close automatically without manual operation. In emergencies, electronic control doors should be able to open quickly to allow personnel evacuation. Since civil defense electronic control doors are often used in high-security environments, they must be able to withstand harsh environmental conditions and frequent use.

[0003] A civil defense electrically controlled door is disclosed in patent publication number CN217652629U, including a frame, with an installation assembly on the top of the frame; the installation assembly includes an L-shaped plate, T-shaped holes, bolts, slide grooves, a door body, threaded holes, threaded rods, and a handle; the lower inner wall of the L-shaped plate is provided with multiple T-shaped holes, and bolts are clearance-fitted to the inner surfaces of the T-shaped holes, and the bolts are threaded to the outer side of the frame; the upper outer wall of the L-shaped plate is respectively fitted with the inner surface of the slide groove, and the slide groove is respectively opened on the outer inner wall of the door body.

[0004] In the above technology, the horizontal shaft drives the frame to rotate through the round shaft, which automatically opens and closes the door. The door opens and closes in an upward manner, saving space. However, the meshing of the first gear and the second gear is required to adjust the door's tilting angle. The first gear and the second gear are exposed to the external environment. At the same time, the air-raid shelter electric control door is often set in a humid environment. The humid environment can easily cause the gear surface to rust. The wear and corrosion of the gear will reduce the transmission efficiency, thus preventing the air-raid shelter electric control door from tilting normally. Therefore, an innovation is needed in this technology. Summary of the Invention

[0005] The purpose of this invention is to provide a civil defense electric control door to solve the problem mentioned in the background art that a humid environment can easily cause the gear surface to rust, and the wear and corrosion of the gears can lead to a reduction in transmission efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a civil defense electrically controlled door, comprising a frame and a door body, the door body being disposed on one side of the frame, a drive shaft being disposed on one side of the frame, the door body being sleeved on one end of the drive shaft, a second gear being sleeved on the other end of the drive shaft, a servo motor being disposed on one side of the frame, the output shaft of the servo motor being drivenly connected to a first gear, a sealing cover being disposed on the top of the frame, a dehumidification box being disposed on one side of the sealing cover, the dehumidification box being filled with a plurality of desiccants, a sealing frame being disposed on one side of the sealing cover, a magnetic strip being disposed at the top of the sealing frame, a pull plate being disposed on one side of the dehumidification box, and an iron strip being disposed on one side of the pull plate.

[0007] As a preferred embodiment of the present invention, a plurality of contact grooves are provided on one side of the outer wall of the dehumidification box, a support rod is provided inside the sealing frame, and an auxiliary block is sleeved on one end of the support rod.

[0008] As a preferred embodiment of the present invention, a straight block is fixedly installed at the top of the auxiliary block, and an abutment rod is provided on one side of the pull plate.

[0009] As a preferred embodiment of the present invention, one end of the abutment rod is fixedly connected to one side of the straight block.

[0010] As a preferred embodiment of the present invention, one end of the iron bar is fixedly connected to the other side of the straight block, and the iron bar is magnetically connected to the magnet bar.

[0011] As a preferred embodiment of the present invention, the second gear is fixedly sleeved on the other end of the transmission shaft, the second gear is located on one side of the first gear, and the door body is fixedly sleeved on one end of the transmission shaft.

[0012] As a preferred embodiment of the present invention, the first gear and the second gear are meshed together.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This invention relates to an electrically controlled civil defense door, which incorporates a sealing cover, a desiccant, a contact rod, an auxiliary block, an iron strip, and a magnetic strip. The sealing cover encloses the first and second gears, placing them in a sealed space to prevent corrosion from prolonged contact with humid air, thus extending the service life of the first and second gears. The desiccant, activated carbon granules, absorbs moisture from the air inside the sealing cover, reducing the moisture content and achieving a dehumidification effect, making the interior of the sealing cover drier. As the dehumidification box moves closer to the sealing cover, the auxiliary block gradually moves at one end of the support rod, and the iron strip gradually approaches the magnetic strip, forming a magnetic connection and enhancing the stability of the sealing cover and dehumidification box installation.

[0015] 2. The present invention provides an electric control door for civil defense, which is equipped with a dehumidification box, contact grooves, a pull plate and a support rod. The purpose of the pull plate is to facilitate the operation of the dehumidification box by the staff. The pull plate is connected to the straight block by a contact rod, which can drive the auxiliary block to move at one end of the support rod, and thus smoothly drive the iron bar to move. The purpose of the multiple contact grooves is to make it more fully in contact with the air inside the sealing cover. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a partial exploded view of the present invention;

[0018] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a partial side view of the structure of the present invention.

[0020] In the diagram: 1. Frame; 2. Door body; 3. Servo motor; 4. First gear; 5. Drive shaft; 6. Second gear; 7. Sealing cover; 8. Dehumidifier box; 9. Contact groove; 10. Desiccant; 11. Sealing frame; 12. Pull plate; 13. Abutment rod; 14. Straight block; 15. Iron strip; 16. Auxiliary block; 17. Magnetic strip. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-4 This invention provides a technical solution for an electrically controlled civil defense door:

[0023] Example 1:

[0024] like Figure 1-3As shown, a civil defense electric control door includes a frame 1 and a door body 2. The door body 2 is located on one side of the frame 1. A drive shaft 5 is located on one side of the frame 1. The door body 2 is fitted onto one end of the drive shaft 5. A second gear 6 is fitted onto the other end of the drive shaft 5. A servo motor 3 is located on one side of the frame 1. The output shaft of the servo motor 3 is connected to a first gear 4. A sealing cover 7 is located on the top of the frame 1. A dehumidification box 8 is located on one side of the sealing cover 7. The dehumidification box 8 is filled with several desiccants 10. A sealing frame 11 is located on one side of the sealing cover 7. A magnetic strip 17 is located at the top of the sealing frame 11. A pull plate 12 is located on one side of the dehumidification box 8. An iron strip 15 is located on one side of the pull plate 12. The desiccant 10 is activated carbon granules, which can absorb moisture in the air inside the sealing cover 7, thereby reducing the moisture content in the air and achieving a dehumidification effect, making the inside of the sealing cover 7 drier. When the dehumidification box 8 is moved closer to the sealing cover 7, the auxiliary block 16 gradually moves at one end of the support rod.

[0025] Example 2:

[0026] Based on Example 1, such as Figure 1 and Figure 4 As shown, a straight block 14 is fixedly installed on the top of the auxiliary block 16, an abutment rod 13 is provided on one side of the pull plate 12, and the second gear 6 is fixedly sleeved on the other end of the transmission shaft 5. The second gear 6 is located on one side of the first gear 4, and the door body 2 is fixedly sleeved on one end of the transmission shaft 5. The present invention is a civil defense electric control door, which is provided with a dehumidification box 8, a contact groove 9, a pull plate 12 and a support rod. The purpose of the pull plate 12 is to facilitate the staff to pull the dehumidification box 8. The pull plate 12 and the straight block 14 are connected by the abutment rod 13, so that the auxiliary block 16 can move at one end of the support rod.

[0027] Working Principle: The electric control door for civil defense typically refers to an access control system operated by an electronic control system used in security-sensitive environments. Through a motor, transmission device, and control system, the door can open and close automatically without manual operation. In emergencies, the electric control door should be able to open quickly to allow personnel evacuation. After the servo motor 3 is started, it drives the first gear 4, which in turn drives the second gear 6 meshing with it. The door body 2, fitted at one end, can then rotate. The sealing cover 7 is located on the top of the frame 1, and the dehumidification box 8 can move back and forth on one side of the sealing cover 7. The sealing cover 7 can enclose the first gear 4 and the second gear 6, keeping the gears in a sealed space. This prevents the first gear 4 and the second gear 6 from corroding due to prolonged contact with humid air, improves the transmission efficiency of the first gear 4 and the second gear 6, and extends their service life. After the dehumidifier box 8 is tightly fitted to the sealing cover 7, the desiccant 10 is located inside the sealing cover 7. The desiccant 10 is activated carbon granules, which can absorb moisture in the air inside the sealing cover 7, thereby reducing the moisture content in the air and achieving a dehumidification effect, making the inside of the sealing cover 7 drier. The operator can pull the pull plate 12 to move the dehumidifier box 8 closer to the side of the sealing cover 7. The auxiliary block 16 gradually moves at one end of the support rod, and the iron strip 15 gradually approaches the magnetic strip 17. The two are magnetically connected, which enhances the firmness of the installation of the sealing cover 7 and the dehumidifier box 8. The purpose of the pull plate 12 is to facilitate the operator to pull the dehumidifier box 8. The pull plate 12 is connected to the straight block 14 through the abutment rod 13, which can drive the auxiliary block 16 to move at one end of the support rod, and thus smoothly drive the iron strip 15 to move. The purpose of the several contact grooves 9 is to make it more fully in contact with the air inside the sealing cover 7.

[0028] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0029] In this invention, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A civil defense electrically controlled door, comprising a frame (1) and a door body (2), wherein the door body (2) is disposed on one side of the frame (1), characterized in that: A drive shaft (5) is provided on one side of the frame (1), and the door (2) is sleeved on one end of the drive shaft (5). A second gear (6) is sleeved on the other end of the drive shaft (5). A servo motor (3) is provided on one side of the frame (1). The output shaft of the servo motor (3) is connected to a first gear (4). A sealing cover (7) is provided on the top of the frame (1). A dehumidifying box (8) is provided on one side of the sealing cover (7). The dehumidifying box (8) is filled with several desiccants (10). A sealing frame (11) is provided on one side of the sealing cover (7). A magnet strip (17) is provided at the top of the sealing frame (11). A pull plate (12) is provided on one side of the dehumidifying box (8). An iron strip (15) is provided on one side of the pull plate (12).

2. The civil defense electric control door according to claim 1, characterized in that: The dehumidification box (8) has several contact grooves (9) on one side of its outer wall, and the sealing frame (11) has a support rod inside, with an auxiliary block (16) sleeved on one end of the support rod.

3. A civil defense electrically controlled door according to claim 2, characterized in that: A straight block (14) is fixedly installed at the top of the auxiliary block (16), and an abutment rod (13) is provided on one side of the pull plate (12).

4. A civil defense electrically controlled door according to claim 3, characterized in that: One end of the abutment rod (13) is fixedly connected to one side of the straight block (14).

5. A civil defense electrically controlled door according to claim 3, characterized in that: One end of the iron bar (15) is fixedly connected to the other side of the straight block (14), and the iron bar (15) is magnetically connected to the magnet bar (17).

6. A civil defense electrically controlled door according to claim 1, characterized in that: The second gear (6) is fixedly sleeved on the other end of the transmission shaft (5). The second gear (6) is located on one side of the first gear (4). The door body (2) is fixedly sleeved on one end of the transmission shaft (5).

7. A civil defense electrically controlled door according to claim 6, characterized in that: The first gear (4) meshes with the second gear (6).