An ink cartridge and a writing pen having the ink cartridge

Abstract

This application discloses an ink cartridge and a writing pen incorporating the ink cartridge, relating to the field of stationery, and solving the problems of easy ink evaporation and leakage in traditional ink cartridges. The ink cartridge includes a cartridge body and an ink-guiding core. The cartridge body is connected to a pen tip, and a ball bearing is provided at the ink outlet of the pen tip. The ink-guiding core includes an ink-guiding section I and an ink-guiding section II. The ink-guiding section I is located inside the pen tip, with an ink-storing space between it and the ball bearing. The ink-guiding section I contains a compressed elastic element with a push rod extending from the lower end of the ink-guiding section I and positioned within the ink-storing space, abutting against the ball bearing. The ball bearing contacts and seals the ink outlet. The ink-guiding section II is partially placed inside the cartridge body, with its lower end extending from the lower end of the cartridge body and positioned inside the pen tip. The upper end of the ink-guiding section I is connected to the lower end of the ink-guiding section II.

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