Spring plunger with pulley

The utility model discloses a spring plunger with a pulley. The spring plunger comprises a shell assembly and a pin assembly. The beneficial effects of the utility model are that the bottom end of the inner pin is provided with the roller, so that the inner pin can roll on the surface of the to-be-detected product, when the height of the to-be-detected product is detected, no scratch is formed on the surface of the to-be-detected product, and the conveying of the to-be-detected product is not affected; according to the spring plunger, the positioning pin is arranged on the inner pin and located in the limiting groove formed in the side wall of the bottom end of the threaded main body shell so that the inner pin can move up and down at the set stroke position, and when the spring plunger is used for pressing a label sticker, the situation that pressing is not firm due to the fact that the movement range of the shaft pin is large is avoided. 本实用新型公开了一种带滑轮的弹簧柱塞，包括壳体组件、柱销组件。本实用新型的有益效果是：通过在内销的底端安装有滚轮，以能够在待检测产品的表面进