CN2690169Y - Anti-shortsightedness pen ring sleeve - Google Patents

Abstract

The utility model relates to an anti-shortsightedness pen ring sleeve, comprising a ring, a cone-shaped funnel, a nib plane, etc; wherein, the upper part of the cone-shaped funnel is a hollow cylinder; and the lower part is a hollow cone. The ring is fastened to the cone-shaped funnel to be fixed; the nib plane is a hollow screw; a cone-shaped scraping blade is arranged in the hollow screw. The utility model has the advantage that the posture of griping the pen is corrected; the finger is kept a definite distance from the nib; thereby, the sitting posture is corrected; the distance between the head lowered and the desktop is controlled, and thereby the aim of vision prevention and correction is achieved, fundamentally. The utility model has the advantages of simple structure, low cost, strong practicability and wide range extension.

Description

The Nearsightedness-preventing pen snare

Affiliated technical field

The utility model relates to a kind of Nearsightedness-preventing pen snare.

Background technology

The articles for use of existing pre-myopia prevention are a lot, but the complex structure that has, cost height be not widely used, have then since in the myopia prevention design shortcoming to some extent also, long-term use is not very desirable, still has large quantities of A nearsighted persons to occur.At this class phenomenon, conscientiously fastidiously cause the myopia of student true cause, be to bow to write to cause because the student gets near-sighted, and the root of writing of bowing is to write lowly, finger too closely causes from the distance of nib, finally causes the formation of myopia.

Its purpose of the utility model provide with regard to being to overcome above defective a kind of simple in structure, cheap, can make child just form the novel Nearsightedness-preventing pen snare that correctly hold a pen and read a book posture and long-term use can be played prevention, correct defects of vision and act on from little.

Summary of the invention

The utility model is achieved through the following technical solutions: this Nearsightedness-preventing pen snare is made of annulus, conical hopper, nib plane etc., wherein annulus is provided with the nib plane of special plane pen core, the top of conical hopper is hollow cylinder, its underpart is a hollow cone, and annulus is stuck in and makes it fixing on the conical hopper.

It is a hollow screw that described nib digs, and is provided with the taper scraping blade in the hollow screw.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model vertical view;

Fig. 3 is that nib digs structural representation in the utility model;

Fig. 4 is the utility model user mode figure.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, it is example that present embodiment is contained on pupil's pencil commonly used with the Nearsightedness-preventing pen snare, constitute by annulus 1, conical hopper 2, nib plane 3 etc., wherein annulus 1 outside diameter is 19mm, interior circle is complementary with the diameter of pen, the thickness of annulus 1 is 1.5mm, have the nib that an aperture is provided with special plane pen core on the annulus 1 and dig 3, the top of conical hopper 2 is the hollow cylinder of 4mm height, its underpart is the hollow cone of 20mm height, annulus 1 is stuck in and uses fixing on the conical hopper 3, and annulus is 30mm from the distance of nib.Nib digs to hollow screw, is provided with the taper scraping blade in the screw.

The Nearsightedness-preventing pen snare also can be used on the ball pen, directly makes pen cap shape, forms fixedly Nearsightedness-preventing pen snare for one section that is about to the close pen core of ball pen.

Annulus in the Nearsightedness-preventing pen snare directly is assemblied on the pen, also can play the myopia prevention effect, and can take off at any time according to user's requirement.

Operation principle: the lower end that the Nearsightedness-preventing pen snare is enclosed within pen, the place of holding pen is on annulus, because the student get near-sighted bow to write cause, and the root of writing of bowing is to write lowly, and the finger that promptly holds a pen is too near from the distance of nib, and annulus blocks finger, finger just can be toward gliding, be fixed on specified altitude, the student writes just can too not bow naturally and does not write, thus the effect that reaches prevention, correct defects of vision at end.

Its advantage of the utility model is,

1, can rectify pen holding posture, the Nearsightedness-preventing pen snare is enclosed within on the pencil, finger then can have with a certain distance from nib, thereby can correct faulty sitting posture, and controls the distance of bowing with desktop, thus the purpose that fundamentally reaches prevention, corrects defects of vision.

2, simple in structure, cost is low, practical, thereby will extensively be promoted.

Claims (3)

1, a kind of Nearsightedness-preventing pen snare is made of annulus, conical hopper, nib plane etc., it is characterized in that the nib that annulus is provided with special plane pen core digs, the top of conical hopper is hollow cylinder, its underpart is a hollow cone, and annulus is stuck in and makes it fixing on the conical hopper.

2, a kind of Nearsightedness-preventing pen snare according to claim 1 is characterized in that, it is a hollow screw that described nib digs, and is provided with the taper scraping blade in the hollow screw.

3, a kind of Nearsightedness-preventing pen snare according to claim 1 is characterized in that, this Nearsightedness-preventing pen snare also can directly be made pen cap shape with a section of the close pen core of ball pen, forms fixedly Nearsightedness-preventing pen snare.

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