Continuous needle ejection device

A continuous needle ejection device, comprising a pressing portion and a needle cartridge portion;

• the pressing portion comprises a striking needle and a housing assembly, and the striking needle is fixed to the housing assembly;
• a tail end of the needle cartridge portion is located inside the housing assembly, and the needle cartridge portion contains a needle assembly formed by a plurality of single needles arranged sequentially;
• a needle advancing portion possessing elastic potential energy is installed inside the needle cartridge portion, and the elastic potential energy of the needle advancing portion acts on the needle assembly, thereby driving the foremost single needle of the needle assembly to be constantly pushed into alignment with the striking needle;
• operating the pressing portion to move axially relative to the needle cartridge portion drives the striking needle to abut the aligned single needle and push it out;
• the needle advancing portion comprises a needle-pushing wheel stand and a steel coil, and the needle cartridge portion comprises a needle ejection cartridge;
• the needle-pushing wheel stand is docked with a tail end of the needle ejection cartridge and is coaxial with the needle ejection cartridge;
• the needle-pushing wheel stand is provided with a needle-pushing boss extending outward;
• the tail end of the needle ejection cartridge is provided with a C-shaped countersunk blind groove, and one end of the countersunk blind groove forms a needle ejection hole penetrating through the needle ejection cartridge;
• the needles are sequentially arranged inside the countersunk blind groove;
• the steel coil is clamped between the needle-pushing wheel stand and the needle ejection cartridge, and the steel coil has a coiled structure possessing elastic potential energy;
• the needle-pushing boss constantly abuts the rearmost single needle of the needle assembly, thereby driving the foremost single needle of the needle assembly to constantly be positioned directly above the needle ejection hole.