Anti-leakage water color pen

Abstract

An anti-leakage water color pen comprises a hollow pen rod, a pen head, a pen cap, a water guide cartridge disposed in the pen head and a wrapped cartridge mounted in the pen rod. Due to the fact that a front anti-leakage sleeve and a rear anti-leakage cover are sleeved at the front end and the tail of the wrapped cartridge respectively, colored liquids cannot be leaked from other parts except for a liquid outlet of the water guide cartridge. The rear leakage cover at the tail can effectively prevent the colored liquid from being leaked from the tail of the wrapped cartridge when the water color pen is inverted especially during transport. A tail sleeve tube of the front anti-leakage sleeve is in matched connection with a waterproof outer film. A head sleeve tube of the front anti-leakage sleeve guides the colored liquids to flow to the water guide cartridge in the middle for concentration so as to avoid the joint of the pen head and the pen rod, and accordingly lateral leakage of the colored liquids from the front end of the wrapped cartridge when the water color pen is placed in a forward direction especially during use. The water color pen is tidy and attractive in appearance, safety to use, convenient for transport, fine in anti-leakage effect, and capable of preventing volatilization of the colored liquids to reduce waste.

Description

technical field [0001] The invention relates to a writing instrument, in particular to a watercolor pen. Background technique [0002] Existing watercolor pens such as figure 1 As shown, it includes a hollow pen holder 1, a nib 2, a pen cap 8, a water-inducing refill 3 placed in the nib 2, and a roll core 4 installed in the pen holder 1, and the roll core 4 is made of a cylindrical waterproof outer shell. The film 4.1 is composed of the water-absorbing material 4.2 filled in the waterproof outer film 4.1. The water-absorbing pen core 3 is in contact with the water-absorbing material 4.2 in the wrapping core 4. Since the wrapping core 4 is directly against the end of the pen tip, In use, the colored liquid in the roll core 4 is easy to leak to the head of the penholder 1, which affects the appearance of the watercolor pen. Leakage often occurs at the slit B at the joint of 4, causing waste, and in severe cases, it will also affect writing; moreover, it is impossible to ens...

AI Technical Summary

Problems solved by technology

[0002] Existing watercolor pens such as figure 1 As shown, it includes a hollow pen holder 1, a nib 2, a pen cap 8, a water-inducing refill 3 placed in the nib 2, and a roll core 4 installed in the pen holder 1, and the roll core 4 is made of a cylindrical waterproof outer shell. The film 4.1 is composed of the water-absorbing material 4.2 filled in the waterproof outer film 4.1. The water-absorbing pen core 3 is in contact with the water-absorbing material 4.2 in the wrapping core 4. Since the wrapping core 4 is directly against the end of the pen tip, In use, the colored liquid in the roll core 4 is easy to leak to the head of the penholder 1, which affects the appearance of the watercolor pen. Leakage often occurs at the slit B at the joint of 4, causing waste, and in severe cases, it will also affect writing; moreover, it is impossible to ensure that the direction of the pen during transportation is all downward with the water diversion refill, especially For the sake of shape or aesthetic needs, the direction of the pen is to transport or store the pen core upside down.

In the above case, because the tail of the roll-wrap core is not sealed, the colored liquid in the roll-wrap core is easy to leak at A under the action of gravity, especially under force or collision.

Affect the appearance of the watercolor pen, and in severe cases, it will also affect the writing

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