CN104875524A

CN104875524A - Shock-resistant pen

Info

Publication number: CN104875524A
Application number: CN201510332760.7A
Authority: CN
Inventors: 周明龙; 余丙荣; 张莉; 程晶晶; 王忠跃; 刘毅; 陆玉杰
Original assignee: Anhui Technical College of Mechanical and Electrical Engineering
Current assignee: Anhui Technical College of Mechanical and Electrical Engineering
Priority date: 2015-06-16
Filing date: 2015-06-16
Publication date: 2015-09-02

Abstract

The invention discloses a shock-resistant pen and belongs to a study tool. The shock-resistant pen is characterized in that a stop bulge is arranged outside the middle-front part of a refill, an extension spring is arranged in the connecting position of a lower pen cap and an upper pen cap, a magnetic pressing component is arranged outside the front part of the lower pen cap, the refill is sleeved with a bearing component, and the bearing component is propped against the stop bulge and matched with the pressing component. During use, a user holds the pressing component with a hand and presses the refill down, once the pen falls off from the hand, the refill retracts under the action of the extension spring, and the condition that a pen point touches the ground and is damaged is avoided. The shock-resistant pen has the advantages that the conception of the pen is novel, the structure is simple, compact and reasonable, the refill is pressed out through full use of pressure generated when the pen is held, once the pen falls off from the hand, the refill retracts under the action of the extension spring, the condition that the pen point touches the ground and is damaged is avoided, and waste is effectively reduced.

Description

A kind of Antibreaking pen

Technical field

The invention belongs to study article, particularly relate to a kind of pen.

Background technology

Pen, for student and other crowds in need, is indispensable stationery in life.Existing kind is a lot of in the market, and most widely used is gel ink pen, such as morning twilight gel ink pen, due to the special construction of gel ink pen itself, nib, once after contacting to earth, causes writing and has some setbacks, even cannot use, pen core directly abandons by people mostly, and waste is serious.

Summary of the invention

In order to overcome the defect of prior art, the object of this invention is to provide a kind of Antibreaking pen, structure is simple, practical, effectively prevents nib from contacting to earth, and avoids nib to damage the waste caused.

A kind of Antibreaking pen, comprise the pen cap, the lower pen cap and pen core, the upper pen cap coordinates with external threading of starting writing, be characterized in described pen core middle front part peripheral hardware stopper protrusion, extension spring is established in the described lower pen cap and upper pen cap junction, the magnetic pressing component of the anterior peripheral hardware tool of the lower pen cap, sheathed undertaking parts on described pen core, accepting parts is resisted against in stopper protrusion, and pressing component matches with undertaking parts.

The present invention improves further, and described pressing component comprises and pushing shrapnel and projection, and projection is bonded in the inboard center pushed shrapnel, and projection is made by magnetic material, and the head of projection is in wheel dentation.

The present invention improves further, described undertaking parts comprise the collar and annular brace sheet, support chip is fixed on the downside of the collar, the outside of the collar is in wheel dentation, and consistent with the shape of projection, the lower end symmetry of support chip offers two notches, the degree of depth of notch is greater than the height of stopper protrusion, after pen core is inserted by notch, rotate, be convenient to change pen core.

Compared with prior art, advantage is that this is novel, and structure letter is gathered, rationally, making full use of the pressure produced when holding a pen makes pen core be forced out, once after pen leaves hand, pen core is retracted under extension spring effect, avoid nib to contact to earth and damage, effectively cutting the waste.

Accompanying drawing explanation

Illustrate that the present invention is further described below in conjunction with accompanying drawing.

Fig. 1 is a kind of structural representation of Antibreaking pen.

In figure: under the upper pen cap of 1-, 2-pen core, 3-extension spring, 4-, the pen cap, 5-pressing component, 6-accept parts, 7-stopper protrusion.

Detailed description of the invention

For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows.

As seen from Figure 1, a kind of Antibreaking pen, comprise the pen cap 1, the lower pen cap 4 and pen core 2, the upper pen cap coordinates with external threading of starting writing, described pen core middle front part peripheral hardware stopper protrusion 7, extension spring 3 is established in the described lower pen cap and upper pen cap junction, the magnetic pressing component 5 of the anterior peripheral hardware tool of the lower pen cap, sheathed undertaking parts 6 on described pen core, accepting parts is resisted against in stopper protrusion, pressing component matches with undertaking parts, during use, hold pressing component, pen core is depressed, once after pen leaves hand, pen core is retracted under extension spring effect, avoid nib to contact to earth and damage.

Be it can also be seen that by Fig. 1, described pressing component 5 comprises and pushing shrapnel and projection, and projection is bonded in the inboard center pushed shrapnel, and projection is made by magnetic material, and the head of projection is in wheel dentation.

Be it can also be seen that by Fig. 1, described undertaking parts 6 comprise the collar and annular brace sheet, support chip is fixed on the downside of the collar, the outside of the collar is in wheel dentation, and consistent with the shape of projection, the lower end symmetry of support chip offers two notches, the degree of depth of notch is greater than the height of stopper protrusion, after pen core is inserted by notch, rotate, be convenient to change pen core.

Claims

1. an Antibreaking pen, comprise the pen cap (1), the lower pen cap (4) and pen core (2), the upper pen cap coordinates with external threading of starting writing, described pen core middle front part peripheral hardware stopper protrusion (7), extension spring (3) is established in the described lower pen cap and upper pen cap junction, the anterior magnetic pressing component of the peripheral hardware tool (5) of the lower pen cap, sheathed undertaking parts (6) on described pen core, accepting parts is resisted against in stopper protrusion, and pressing component matches with undertaking parts.

2. Antibreaking pen according to claim 1, it is characterized in that described pressing component (5) comprises and push shrapnel and projection, projection is bonded in the inboard center pushed shrapnel, and projection is made by magnetic material, and the head of projection is in wheel dentation.

3. Antibreaking pen according to claim 1, it is characterized in that described undertaking parts (6) comprise the collar and annular brace sheet, support chip is fixed on the downside of the collar, the outside of the collar is in wheel dentation, and consistent with the shape of projection, the lower end symmetry of support chip offers two notches, the degree of depth of notch is greater than the height of stopper protrusion, after pen core is inserted by notch, rotate, be convenient to change pen core.