CN203267538U - Recyclable pen refill - Google Patents

Abstract

The utility model relates to a recyclable gel pen, which comprises a tubular pen core, a pen head and pen oil. One end of the pen core is inserted with a pen head, the other end is an opening, the top of a push rod is a disc-shaped structure, and There is a rubber pad on the top, and the diameter of the rubber pad is slightly larger than the inner diameter of the refill; the diameter of the disc at the top of the push rod is slightly smaller than the inner diameter of the refill; in addition, there is a straw with an inner diameter equal to the outer diameter of the refill and a length of 4-6 cm; One end of the nib is 2-3 centimeters away from the nib, and there is a ring-shaped protrusion. After the pen oil in the pen core is exhausted, the user can take off the nib, put on the suction pipe, and then pull up the push rod, and the pressure in the pen core tube will decrease due to the movement of the push rod. Due to the effect of the external atmospheric pressure, the pen oil enters the pen core tube through the straw. When the pen oil is full, take off the suction tube and reinstall the pen tip to continue to use, realizing the recycling of the neutral pen core. The utility model has the advantages of reasonable structure, convenient use and simple operation.

Description

A recyclable refill

technical field

The invention relates to a writing implement, in particular to a recyclable neutral pen core. the

Background technique

Gel refill is a very important member of stationery, and the consumption is huge. There are nearly 300 million students in my country at present, and if each person uses one a week, it will cost 15 billion. The material of the gel pen refill is polystyrene or modified polystyrene, which is famous for its aging resistance and corrosion resistance. This is consistent with the principle that ultra-thin plastic bags are difficult to degrade. It basically takes 100 years to be buried in the soil. In order to degrade by itself; most nibs and inks often contain some heavy metal elements (such as nickel, chromium, lead, mercury, etc.). When the refills are discarded at will, these substances will accumulate in the soil and cause great pollution to the environment. When polystyrene is incinerated, it will produce carcinogenic smoke and dust to pollute the atmosphere, especially dioxins are seriously harmful to crops and animal livers. Neutral pen refills are another big environmental killer after white garbage and waste batteries! But the gel pen is easy to use, so it is very popular. But at present all gel pens cannot solve the problem that they cannot be recycled. the

Contents of the invention

The purpose of the present invention is to provide a recyclable gel pen, which is used to solve the problems of large consumption of gel pen, but non-recyclable and environmental pollution. the

In order to achieve the above object, the recyclable pen core of the present invention includes a tubular pen core (1), a pen head (6), a push rod (4) is inserted into the tube of the pen core (1) from the opening, and the top of the push rod (4) is Disc-shaped structure, and there is a rubber pad (5) on the disc, the diameter of the rubber pad is 0.5 mm larger than the inner diameter of the pen core; the diameter of the top disc of the push rod (4) is 0.5 mm smaller than the inner diameter of the pen core; there is an inner diameter equal to the pen core The length of the core outer diameter is 4-6 cm for the straw (7). The front end of the refill has external threads, the nib and the straw have internal threads, and there are soft gaskets inside the nib and the straw. The refill and the nib are connected by interference and sealed by the soft gasket inside the nib; A soft gasket inside the straw provides a seal. the

After adopting the above-mentioned structure, when the pen oil in the pen core is exhausted, the user can take off the nib, install the straw, and then pull up the push rod, and the pressure in the pen core tube will decrease due to the movement of the push rod. Due to the effect of the external atmospheric pressure, the pen oil enters the pen core tube through the straw. When the pen oil is full, take off the suction tube and reinstall the pen head to continue using, so as to realize the recycling of the neutral pen core. The purpose of setting the protrusion on the side of the nib is to make it easy to operate when absorbing pen oil. the

The invention has the advantages of reasonable structure, convenient use and flexible operation, can manually solve the problem that the pen core cannot be recycled, reduces environmental pollution and resource waste, and reduces the living burden of students. the

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the recyclable neutral pen core of the present invention during normal use,

Fig. 2 is a schematic diagram of the overall structure of the recyclable neutral pen core of the present invention when absorbing pen oil. the

Wherein, 1. tubular pen core, 2. annular protrusion, 3. ink, 4. push rod, 5. rubber pad, 6. nib, 7. straw. the

Detailed ways

As shown in Figures 1 and 2, the recyclable neutral pen core of the present invention includes a tubular pen core 1, a nib 6, ink 3 and a suction pipe 7, the nib 6 is installed at one end of the pen core 1, the nib end is equipped with balls, and the other end is Opening, a push rod 4 is inserted into the pen core 1 tube from the opening, the top of the push rod 4 is a disc-shaped structure, and there is a rubber pad 5 on the disc, the diameter of the rubber pad is 0.5 mm greater than the inner diameter of the pen core; the top of the push rod 4 is round The diameter of the disc is 0.5 mm less than the inner diameter of the pen core; in addition, there is also a straw with an inner diameter equal to the outer diameter of the pen core and a length of 4-6 cm; there is a ring-shaped protrusion 2 at the end close to the pen tip 2-3 cm away from the pen tip . The front end of the refill has an external thread, the straw has an internal thread, and there are soft gaskets inside the nib and the straw. The refill and the nib are connected through interference and sealed by the soft gasket inside the nib; The soft gasket realizes the seal. the

Claims (3)

1. A recyclable gel refill, including a tubular refill (1) and a nib (6), characterized in that: a push rod (4) is inserted into the tube of the refill (1) from the opening, and the push rod (4) ) The top is a disc-shaped structure, and there is a rubber pad (5) on the disc. The diameter of the rubber pad is 0.5 mm larger than the inner diameter of the pen core; the diameter of the top disc of the push rod (4) is 0.5 mm smaller than the inner diameter of the pen core; there is a A straw (7) with an inner diameter equal to the outer diameter of the pen core and a length of 4-6 cm. 2. A recyclable gel refill as claimed in claim 1, characterized in that: said refill has a ring-shaped protrusion at an end close to the nib at a distance of 2-3 centimeters from the nib. 3. A recyclable gel refill as claimed in claim 1, characterized in that: the front end of the refill has an external thread, the straw has an internal thread, the nib and the nib have a soft gasket inside, and the refill and the nib pass through the The surplus connection is sealed by the soft gasket inside the nib; the pen core and the straw are connected by threads, and the seal is realized by the soft gasket inside the straw.

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