The utility model is a direct plug-in fuse tube, which belongs to the emergency protection device of a circuit, and is composed of a glass tube, a fuse wire, and a copper cap.
Generally, emergency protection devices for low-voltage power supply often use knife switches, porcelain fuse boxes, or combination sockets with fuses. It is necessary to open the box cover or unplug the plug to determine whether the fuse of this type of protector has been burned out. However, replacing the fuse requires some tools to replace it, which is quite difficult to lock. In addition, when the fuse is burned out, it generates large sparks, which can easily cause the porcelain body to burn black, bakelite and plastic parts to burn and deform, Especially when the combined socket is burnt and deformed, it cannot be repaired and can only be replaced as a whole, causing significant waste.
For some low-power household appliances, instruments, and equipment, fuse tubes are often installed inside, and the fuses are sealed in glass tubes. The sparks generated during melting will not damage other components, and the glass tubes are black, making it clear at a glance. However, the installation of fuse tubes requires a clamp fixed to the bottom plate, which is often exposed and can easily cause electric shock if not careful.
The purpose of this utility model is to provide a direct plug-in fuse tube, which retains the advantages of ordinary fuse tube sealing to extinguish sparks, and the glass tube turning black after the fuse is burned out, which is easy to be discovered. It also eliminates fixed clamps and sockets, and can be directly connected to various power supply lines at different positions, as well as installed on household appliances and instrument equipment. It does not require any tools, and ordinary people can also replace new fuse tubes, It is both convenient, fast, and safe and reliable.
The purpose of this utility model can be achieved by the following measures: it is composed of a glass tube, a fuse wire, and a copper cap. The feature is that the copper caps at both ends of the glass tube are hollow, and the solid wire can be directly inserted into it. The copper cap is made of elastic copper material, which is in a funnel shape. The narrow end has an opening groove through the center point, which can firmly clamp the solid wire. The other end is curled outward and riveted with the fuse wire on the end face of the glass tube, There is an insulation sleeve on the outside, which wraps the exposed copper cap to prevent it from loosening and falling off during insertion. Holding the glass tube in hand also prevents electric shock accidents.
This utility model not only retains the advantages of ordinary fuse tubes being sealed to extinguish sparks and easy to determine whether they have been burned out, but also eliminates fixed sockets and clamps. It can only be connected and fixed to the power supply line using the hard performance of solid wires, as well as installed on household appliances and equipment. If a new fuse tube needs to be replaced, simply select a fuse tube of the same color, and simply pull out and insert it without using any tools, Ordinary people can do it, so it is very convenient and fast. In addition, the joint of the fuse tube is fully sealed, with a high degree of insulation, making it safer and more reliable.
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