CN102991194A - a gel pen - Google Patents

Abstract

The invention provides a gel pen. The pen holder of the gel pen is a cavity for storing ink, the piston is between the ink and the sealing oil, and the tail end of the pen holder is a tail cap with a dust-proof net and a ventilation hole. The front end of the pen holder covers the writing head, and there is a gap between the writing head and the writing head. The nib cover of the gel pen is spirally connected with the pen holder. By rotating the writing head, the ink filling hole and the notch can be used in two states: aligned ink filling and staggered use, so that the gel pen can be used repeatedly for refilling ink, which is not only convenient but also solves the waste and problems caused by disposable gel pen refills. environmental pollution.

Description

a gel pen

technical field

The invention relates to a gel pen, in particular to an ink refillable gel pen.

Background technique

The gel pen is a widely used writing tool, which has the advantages of both a fountain pen and a ballpoint pen. It feels comfortable to the touch and writes smoothly, so it is deeply loved by users. However, ordinary gel pen refills can only be used once, and after the ink is used up, they can only be discarded, which not only wastes resources and increases production and use costs, but also the plastic rod, remaining ink and lithium-based ester sealing oil will pollute the environment.

Contents of the invention

The invention provides a gel pen which can be used repeatedly by adding ink, which is convenient to use and beneficial to environmental protection.

The present invention includes that the pen holder of the neutral pen is a cavity for storing ink, and the ink is followed by a rubber piston with small friction with the inner wall of the rod. The function of the piston is to separate the sealing oil from the ink to prevent the ink from entering the middle of the sealing oil when adding ink. After the piston is seal oil. In the scheme, in order to ensure smooth writing, it is necessary to use an appropriate amount of sealing oil. The end of the pen barrel is a tail cap, which has a dust-proof net inside and a vent hole at the bottom.

The above technical solution also includes: the writing head set on the front end of the pen holder is based on the writing head of an ordinary gel pen, and a gap is opened at the connection part with the pen holder, and an ink filling hole is opened at the connection part with the writing head of the pen holder , that is, the gap is added inside the ink hole outside. When writing, stagger the notch and ink filling, turn the writing head when adding ink, align the notch with the ink filling hole to add ink, turn the writing head after ink filling, make the notch and ink filling hole stagger and close the ink filling hole write. Two symmetrical trapezoidal plates are arranged on the writing head, and it is easier to turn the writing head by holding the trapezoidal plates when adding ink.

The nib cover of the gel pen of the above proposal is connected with the penholder by a spiral, and the pen tip cover can be used only by screwing on it.

The present invention adopts the technical scheme. When in use, only need to unscrew the nib cover, rotate the writing head to align the ink filling hole with the gap to add ink, then rotate the writing head to close the ink filling hole, and screw on the nib cover. Gel pen used. Due to the adoption of a scientific and reasonable ink filling structure, the present invention solves the problem that the existing gel pen ink can only be used by replacing the pen core after it is used up. It is convenient to use and reduces waste, and is also beneficial to environmental protection. Promote the use of gel pens.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the pen cap of the present invention.

In the figure: 1. Writing head, 2. Trapezoidal plate, 3. Notch, 4. Connecting part, 5. Ink filling hole, 6. Containment chamber, 7. Piston, 8. Sealing oil, 9. Dustproof net, 10. Air vent, 11, tail cap, 12, nib cover.

Detailed ways

As shown in the accompanying drawings, the penholder of the gel pen is the chamber 6 for storing the ink, the ink is followed by the piston 7, the piston is followed by the sealing oil 8, the tail end of the penholder is the end cap 11, and there is a dustproof net in the end cap 9. There are ventilation holes 10 at the bottom. The front end of the pen holder is covered with a writing head 1, and the writing head 1 is set on the front end of the pen holder through a connecting portion 4. The connecting portion has a gap 3, and the connecting portion of the pen holder and the writing head has an ink filling hole 5. Two trapezoidal plates 2 are arranged on the writing head. The nib cover 12 of gel pen adopts spiral connection with pen holder.

Claims (3)

1. A gel pen, comprising a gel pen holder, characterized in that: in the pen holder of the gel pen is a cavity (6) for storing ink, and between the ink and the sealing oil (8) is The piston (7), the tail cap (11) at the end of the pen barrel has a dust-proof net (9) and a vent hole (10), the front end of the pen barrel covers the writing head (1), the nib cover (12) of the gel pen and the pen barrel adopt a spiral connect. 2. A gel pen according to claim 1, characterized in that: the piston (7) is concave in the middle, and the contact part with the inner wall of the rod is an arc. 3. A gel pen according to claim 1, characterized in that: the connecting portion (4) of the writing head (1) connected to the front end of the pen holder has a gap (3), and the pen holder and the writing head (1) ) has an ink filling hole (5), and there are two trapezoidal plates (2) on the writing head (1).

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