Nailing unit and nail gun comprising said nailing unit

A nailing unit comprising a nail box, a nail magazine arranged inside the nail box, a nail pushing block, a tail buckle switch arranged at a tail of the nail box, a nail limiting block and a nail guiding plate fit together and arranged at a front of the nail magazine, wherein the nail pushing block is slidably connected to the nail magazine;

• the nail magazine includes a heat-treated guide rail assembly mounted with a nail splitting plate at an end near the nail guiding plate, the nail splitting plate and the nail guiding plate form a nail outlet when the nail magazine is closed;
• a tension spring is installed inside the guide rail assembly and connected to the nail pushing board;
• the guide rail assembly comprises a guide rail bottom plate, a guide rail plate and a guide rail arranged above the guide rail bottom plate;
• the end near the nail guiding plate of the guide rail is provided with a heat-treated connecting piece, and said tension spring is provided in the guide rail;
• a first gap is formed between the guide rail plate and an inner side wall of the adjacent nail box, a second gap is formed between the guide rail plate and the guide rail, and a third gap is formed between the guide rail and the inner side wall of the adjacent nail box;
• the nail pushing block is formed with three nail pushing feet adapted to the first, second, and third gaps;
• the nail guiding plate includes two connecting wings, and a low-lying guide plate is formed between the two connecting wings;
• between each right angle formed by the guide plate and each connecting wing is respectively fixedly provided with a positioning step extending along a longitudinal direction from a front end to a rear end of the guide plate;
• the nail limiting block includes an adjustment board, and guide blocks vertically fixed on both sides of the adjustment board;
• the guide blocks are movably assembled in the positioning grooves, and at least one guide block has an arc-shaped surface formed on the top;
• an inner groove is formed on the outer side of the adjustment board, a positioning column is fixed in the inner groove, an abutting spring is sleeved on the positioning column, and the end of the abutting spring abuts against the inner groove.