CN216579877U - Graphite pen core of electromagnetic pen and electromagnetic pen - Google Patents

Abstract

The utility model discloses an electromagnetic pen graphite refill and an electromagnetic pen. The graphite refill for the electromagnetic pen can reduce the coordinate offset phenomenon generated when the pen point is shortened by the electromagnetic technology and the phenomenon that the traditional pencil refill is broken when passing through the iron core, and can be widely applied to the technical field of the graphite refill for the electromagnetic pen.

Description

Graphite pen core of electromagnetic pen and electromagnetic pen

Technical Field

The utility model relates to the technical field of electromagnetic pen refills, in particular to an electromagnetic pen graphite refill and an electromagnetic pen.

Background

In the traditional education, the use of a pencil to learn writing is a necessary link for everyone to learn. In the process of education and electronization, people also want to use the electronic pen to learn and write, and at the present stage, many problems still exist when the electronic pen is used for writing. For example, in the dot-matrix pen technology, since the microcode printed on the paper is masked by the writing of the pencil, the camera cannot read the microcode on the paper, and thus cannot obtain the positioning coordinates. Under the existing electromagnetic pen technology, the refill of the electromagnetic pen needs to penetrate through the iron core close to the position of the pen point and is fixed on the pressure sensor, but the traditional pencil refill is very easy to break. Meanwhile, the pen holder part of the electromagnetic pen refill needs to keep a certain thickness, but the thicker the structure of the pen holder part is, the thicker the diameter of the iron core is. The thick iron core not only can thicken the appearance of the electromagnetic pen, but also can change the matching condition between the iron core of the electromagnetic pen and the antenna of the electromagnetic pen, thereby causing the calculated coordinate offset.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a simple and practical graphite pen refill for an electromagnetic pen and an electromagnetic pen.

The embodiment of the utility model provides an electromagnetic pen graphite refill, which comprises a graphite refill head, a plastic refill rod and a connecting groove, wherein the graphite refill head is connected with the plastic refill rod through the connecting groove.

Optionally, the graphite writing core head is in an inverted cone shape.

Optionally, the graphite pen core head is concave in the conical surface and waist.

Optionally, the graphite pen core head is in a shape of a semicircle with a conical top.

Optionally, the connecting groove is an internal inverted groove.

Optionally, the graphite pen core head and the plastic pen core rod are bonded in a hot melting mode.

Optionally, the graphite pen core head and the plastic pen core rod are connected in a glue fixing mode.

Optionally, the graphite pen core head is formed by cutting.

The embodiment of the utility model also provides an electromagnetic pen, which comprises the electromagnetic pen graphite pen core.

One technical solution in the above embodiment of the present invention has the following advantages: the embodiment of the utility model can meet the writing requirement of the pencil through the graphite pencil core head, and can also reduce the coordinate offset phenomenon of the electromagnetic technology when the pencil point is shortened; in addition, according to the embodiment of the utility model, the plastic pencil core rod can reduce the phenomenon that the traditional pencil core is broken when passing through the iron core; furthermore, the embodiment of the utility model adopts the graphite refill head and the plastic refill rod, which do not interfere with the application of the electromagnetic technology.

Drawings

Fig. 1 is a schematic diagram of a graphite pen core structure of an electromagnetic pen.

Detailed Description

The utility model will be further explained and explained with reference to the drawings and the embodiments in the description.

The embodiment of the utility model provides an electromagnetic pen graphite refill, which comprises a graphite refill head, a plastic refill rod and a connecting groove, wherein the graphite refill head is connected with the plastic refill rod through the connecting groove.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a graphite pen core of an electromagnetic pen according to the present invention. The graphite pen core of the electromagnetic pen comprises a graphite pen core head 1, a plastic pen core rod 2 and a connecting groove 3, wherein the graphite pen core head 1 and the plastic pen core rod 2 are connected through the connecting groove 3. The connecting groove 3 is located at the bottom of the graphite pencil lead head 1, and one end of the plastic pencil lead rod 2 is inserted into the connecting groove 3 to be connected with the graphite pencil lead head 1. The graphite writing core head can meet the writing requirement of a pencil, and can reduce the coordinate offset phenomenon of an electromagnetic technology when the pen point is shortened. The plastic pencil core rod can reduce the phenomenon that the traditional pencil core is broken when passing through the iron core.

In a further preferred embodiment, the graphite writing core head is in the shape of an inverted cone.

The graphite pen core head in the inverted cone shape is more convenient to write, shielding in the writing process of the electromagnetic pen can be reduced, and meanwhile, the insertion and replacement of the plastic pen core rod are facilitated.

In a further preferred embodiment, the graphite refill head is of a conical surface and concave waist shape.

The graphite pen core head with the concave conical surface and the concave waist can reduce shielding in the writing process of the electromagnetic pen, and meanwhile, the plastic pen core rod is convenient to insert and replace.

Further preferably, the graphite pencil lead head is in a shape of a semicircle with a conical top.

Wherein, the semicircle top of half circular plus conical graphite refill head in top can make the electromagnetic pen more smooth when writing, and conical graphite refill head can be convenient for write.

Further preferably, the connecting groove is an internal inverted groove.

The inner inverted groove can better connect the graphite pencil lead head with the plastic pencil lead rod, so that the connection of the graphite pencil lead head and the plastic pencil lead rod is firmer.

In a further preferred embodiment, the graphite writing core head and the plastic writing core rod are bonded by a hot melting method.

The graphite pencil core head can resist high temperature and can be bonded with the plastic pencil core rod in a hot melting mode.

Further as a preferred embodiment, the graphite pen core head and the plastic pen core rod are connected in a glue fixing mode.

The graphite pencil lead head can be connected with the plastic pencil lead rod in a mode of being fixed by glue, and is not easy to fall off.

In a further preferred embodiment, the graphite tip is formed by cutting.

Compared with the common pencil lead, the processed graphite pencil lead head is more wear-resistant and has longer service life.

Further as a preferred implementation manner, an embodiment of the present invention further provides an electromagnetic pen, including the electromagnetic pen graphite pen core as described in any one of the above.

In summary, compared with the prior art, the utility model has the following advantages:

1. the embodiment of the utility model can meet the writing requirement of a pencil through the graphite pencil core head and can also reduce the coordinate offset phenomenon of the electromagnetic technology when the pencil point is shortened.

2. According to the embodiment of the utility model, the plastic pencil core rod can reduce the phenomenon that the traditional pencil core is broken when passing through the iron core.

3. The embodiment of the utility model adopts the graphite refill head and the plastic refill rod, which do not interfere with the application of the electromagnetic technology.

4. The embodiment of the utility model only causes partial damage of the graphite pen core head when falling, and cannot cause replacement of the whole electromagnetic pen.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (9)

1. The utility model provides an electromagnetic pen graphite refill which characterized in that: the pencil core head is connected with the plastic pencil core rod through the connecting groove.

2. An electromagnetic pen graphite refill according to claim 1, characterized in that: the graphite pencil lead head is in an inverted cone shape.

3. An electromagnetic pen graphite refill according to claim 1, characterized in that: the graphite pencil lead head is of a conical surface and a concave waist.

4. An electromagnetic pen graphite refill according to claim 1, characterized in that: the graphite pencil lead head is in a shape of a semicircle with a conical top.

5. An electromagnetic pen graphite refill according to claim 1, characterized in that: the spread groove is inside back-off type recess.

6. An electromagnetic pen graphite refill according to claim 1, characterized in that: the graphite pencil lead head and the plastic pencil core rod are bonded in a hot melting mode.

7. An electromagnetic pen graphite refill according to claim 1, characterized in that: the graphite pen core head is connected with the plastic pen core rod in a glue fixing mode.

8. An electromagnetic pen graphite refill according to claim 1, characterized in that: the graphite pencil lead head is formed by cutting.

9. An electromagnetic pen, comprising an electromagnetic pen graphite refill according to any one of claims 1 to 8.

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