| 摘要 |
The present invention relates to a gas regulating valve for a torch. A gas regulating valve for a torch of the present invention has a valve frame including a gas inlet with a substantially tapered cross-section and a gas outlet, a valve pin inserted into an insertion hole formed inside the valve frame to block and open the gas inlet, a handle fastened to a tail portion of the valve pin, and a valve frame fastening block that is immovably fastened on the outside of the valve frame, is formed in a ring shape along an outer periphery of the valve pin on the top of the handle and guides, by rotations of the handle, the valve pin to translate back and forth opposite to the gas inlet, and further comprises a buffer resin part with a conical shape fixed to the top of the head of the valve pin, wherein the buffer resin part has a cross-section corresponding to the tapered shape of the gas inlet, making a surface contact with the tapered surface of the gas inlet. Accordingly, as the contact face between the gas inlet and the valve is protected by the resin, the life of the gas regulating valve is increased and a gas leak between the gas inlet and the valve pin can be suppressed effectively, such that large scale explosion accidents or safety-related accidents as well as environmental contamination or environmental accidents due to a gas leak can be avoided in advance. |
