Anti-spill bottle

Abstract

An anti-overflow fluid injecting bottle comprises: a bottle body (1), a needle cylinder (2), a needle seat (3) and a needle tube (4); when an ink pen is added with ink, an elastic closure center hole at the tail of the pen is aligned to the needle seat (3), the needle tube (4) is inserted into a pen barrel, the needle seat (3) is pressurized downwardly to decrease the air pressure inside the bottle body (1), so that the air pressure inside the bottle body is lower than the air pressure inside the pen barrel of the ink pen, and therefore, an ink returning motion is completed; when the pressure of the ink pen upon the needle seat (3) is removed, the needle seat (3) automatically rises under the action of a pressure spring, and at the same time, the pen barrel of the ink pen is kept in connection with the needle tube (4) to enable the air pressure inside the bottle body (1) to rise, so that the air pressure inside the bottle body (1) is higher than the air pressure inside the pen barrel of the ink pen, and therefore, an ink filling motion is completed. The anti-overflow fluid injecting bottle achieves integration of the ink returning and filling motions, and facilitates the use of users.

Description

technical field [0001] The invention relates to stationery, in particular to an anti-spill refill bottle. Background technique [0002] The inventor once disclosed an invention patent with a patent number of 200910190274.0, which discloses a liquid injection bottle used in conjunction with an ink-filling ink pen, which can fulfill the ink filling requirements of the ink-filling ink pen. [0003] Yet when using above-mentioned invention patent product in practice, still there is following problem: [0004] 1. During transportation, when the liquid injection bottle is turned upside down or when the liquid injection bottle is subjected to strong vibration, the ink in the bottle will overflow. [0005] 2. When the ink pen is not used for a long time, part of the ink at the end of the pen will evaporate, which will cause excessive ink concentration in the pen tank, which will easily cause blockage of the ink path and poor writing. At this time, in order to make the ink path of ...

AI Technical Summary

Problems solved by technology

[0008] The invention aims at the problem of part of the ink overflowing during the ink filling caused by the inability to return the ink in the existing liquid injection bottle, and provides an anti-spill liquid injection bottle

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