The mid portion of the plastic branch pipe is fixedly arranged at the lower portion of a base through a connecting piece.
连接件的下端挂接饵簧， 中部穿过基座的芯孔，上端穿出在基座上插接的塑料管后接挂绳；
The welding piece of the corrugated pipe clamps the end parts of the corrugated pipe to prevent the corrugated pipe being welded through and improve the welding stability and quality.
本发明通过波纹管焊接件夹持波纹管的端部，避免波纹管被焊穿，提高了焊接的稳定性和质量。
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