The round button on top of the Insulation Plastic Dome Caps is usually used to secure and seal components, and the specific name may vary depending on product design and usage. Generally speaking, this type of button may be referred to as a "sealing button," "fixing button," or "locking button.

Function and Function

1. Sealing function: The main function of this button is to ensure the sealing of the Insulation Plastic Dome Caps, preventing external air, moisture, or impurities from entering the interior and affecting the insulation effect.

2. Fixing function: It also serves as a fixing function, firmly securing the Insulation Plastic Dome Caps in the desired position to prevent movement or detachment during use.

3. Convenient disassembly and assembly: The design of this button also facilitates user disassembly and assembly, making it easy to clean and maintain. Users can easily disassemble and install Insulation Plastic Dome Caps through simple operations.