Structural exploded view of the anti-theft door (ask Panpan how the hinge of the anti-theft door is 2

The hinge structure of the Panpan anti-theft door plays a crucial role in ensuring the security and functionality of the door. Generally, the anti-theft doors use two types of hinges, namely light hinges and dark hinges.

Light hinges are visible from the outside and can be directly accessed by potential intruders, therefore, class C and D anti-theft doors, which require a higher level of security, almost exclusively use dark hinges that cannot be touched from the outside. Dark hinges are concealed within the door frame, making them more difficult to tamper with.

However, concealed hinges have a major drawback. They limit the door's opening angle to more than 90 degrees, and if the door is forced to open further, the hinge may be damaged. On the other hand, open hinges allow the door to open up to 180 degrees, providing easier access and convenience. As a result, high-end anti-theft doors (Class A) often use open hinges, while implementing additional measures to prevent the door from being opened even if the hinge is broken.

Therefore, the choice of hinge structure in an anti-theft door is directly related to the security level of the door. In most cases, residential anti-theft doors use hidden hinges to ensure a higher level of security.

It is important to note that the internal structure of the hinge itself may vary depending on the manufacturer and specific design of the door. The hinge typically consists of two metal plates, one attached to the door leaf and the other to the door frame. These plates are connected by a pin that allows the door to rotate smoothly when opening and closing.

In conclusion, the hinge structure of the Panpan anti-theft door is designed to enhance the security and functionality of the door. The choice between light and dark hinges depends on the desired security level, with higher security doors often utilizing hidden hinges. However, it is essential to consider the limitations of concealed hinges regarding the door's opening angle. Ultimately, the internal structure of the hinge itself may vary, but it generally consists of metal plates connected by a pin.