Methods of emergency opening of manholes in emergency situations, devices and systems for their embodiment and methods of assembling devices for emergency opening of movable elements installed in manholes.

A vehicle including a door and a ballistic protection device for a door having a ballistic protection element connected to the door via a device for automatically bringing closer and spacing apart the protection element when opening and closing the door, the device for bringing closer and spacing apart include at least one upper connecting arm and at least one lower connecting arm of the same length and hinged to the protection element and the door, so that the protection element and the door can be brought closer to and spaced apart from each other, while remaining parallel to each other, and at least one actuating arm, hinged to the at least one lower connecting arm and to a fixed part of the vehicle, so as to control, by action on the at least one lower connecting arm, the displacement of the protection element with respect to the door.

Apparatus and methods are provided for a video enabled armor system for use in an armored surface of a vehicle. In one embodiment the system has an exterior facing ballistic resistant armor panel mounted over an opening in the armored surface of the vehicle, with the armor panel overlaying the armored surface around a perimeter of the opening. The armor panel has a first aperture in a portion of the panel adjacent the opening, and a first video camera disposed in the first aperture aimed outward through the first aperture. The system may further include a video display operatively connected to the first video camera and mounted over the opening on an interior side of the armored surface.

A manufacturing method of an intelligent anti-terrorism protective door comprises the following steps: S1, making front and rear door panels; S2, cutting the composite door core panel materials; S3, making protective door frame; S4, assembling bulletproof and explosion-proof armored composite door core panel; S5, making the door frame; S6, decorating the surface of the protective door; S7, overall assembly; S8, installing the lock; S9, packaging the protective door. The manufacturing method is simple and easy to implement, with strict control over every aspect from raw materials, production processes, to quality control during the manufacturing process, ensuring the product quality. This not only makes the product fire-proof and anti-theft, but also has explosion-proof and bulletproof properties, effectively preventing explosions and bullet attacks, greatly improving the security of the protective door.

Composite door systems that are configured for providing safety, security, and resistance to physical impacts or threats (natural and man-caused), and which can be utilized in barrier structures, such as for doors. The composite door systems may include one or more layers, each of which may have one or more fiber layers, such as fabric layers or plastic layers. The composite door systems may further include one or more additional layers of a sheet material, a fill material, or the like. The composite door systems are infinitely customizable and configured to be adapted to a variety of applications, and scalable levels of protection.

Composite door systems that are configured for providing safety, security, and resistance to physical impacts or threats (natural and man-caused), and which can be utilized in barrier structures, such as for doors. The composite door systems may include one or more layers, each of which may have one or more fiber layers, such as fabric layers or plastic layers. The composite door systems may further include one or more additional layers of a sheet material, a fill material, or the like. The composite door systems are infinitely customizable and configured to be adapted to a variety of applications, and scalable levels of protection.

A protective apparatus and an aerial work device are disclosed. The protective apparatus comprises a bracket (1) and a cover (2); the upper side of the cover (2) is hinged to the upper side of the bracket (1); the protective apparatus further comprises a pull-down apparatus (4); the pull-down apparatus (4) comprises a fixed pulley (403), a movable pulley (404), a push rod (407) and a pull rope (401); the fixed pulley (403) is fixedly connected to the cover (2); the movable pulley (404) is located above the fixed pulley (403); the movable pulley (404) is slidingly connected to the cover (2); a fixed end of the pull rope (401) bypasses the movable pulley (404) and is connected to the fixed pulley (403); and an upper end of the push rod (407) is connected to the movable pulley (404). These and other embodiments and variations are more fully disclosed herein.

A protective apparatus and an aerial work device are disclosed. The protective apparatus comprises a bracket (1) and a cover (2); the upper side of the cover (2) is hinged to the upper side of the bracket (1); the protective apparatus further comprises a pull-down apparatus (4); the pull-down apparatus (4) comprises a fixed pulley (403), a movable pulley (404), a push rod (407) and a pull rope (401); the fixed pulley (403) is fixedly connected to the cover (2); the movable pulley (404) is located above the fixed pulley (403); the movable pulley (404) is slidingly connected to the cover (2); a fixed end of the pull rope (401) bypasses the movable pulley (404) and is connected to the fixed pulley (403); and an upper end of the push rod (407) is connected to the movable pulley (404). These and other embodiments and variations are more fully disclosed herein.

A manufacturing method of an intelligent anti-terrorism protective door comprises the following steps: S1, making front and rear door panels; S2, cutting the composite door core panel materials; S3, making protective door frame; S4, assembling bulletproof and explosion-proof armored composite door core panel; S5, making the door frame; S6, decorating the surface of the protective door; S7, overall assembly; S8, installing the lock; S9, packaging the protective door. The manufacturing method is simple and easy to implement, with strict control over every aspect from raw materials, production processes, to quality control during the manufacturing process, ensuring the product quality. This not only makes the product fire-proof and anti-theft, but also has explosion-proof and bulletproof properties, effectively preventing explosions and bullet attacks, greatly improving the security of the protective door.