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Anti-broken core mechanical pencil

A propelling pencil, anti-breaking technology, applied in mechanical pencils, printing, writing utensils, etc., can solve the problems of broken core, lead lead broken into many knots in the tip sleeve, lead core broken in the tip sleeve, etc., to achieve convenient use, Reduce the movable distance and reduce the effect of core breakage

Active Publication Date: 2018-06-15
TAIZHOU LIKE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in daily use, it is unavoidable that the broken core will occur. For example, when installing the lead core, if the position is not particularly good, the lead core will be directly broken in the tip sleeve.
Or when the mechanical pencil falls on the ground, it is easy to cause the lead in the tip sleeve to break into many knots

Method used

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  • Anti-broken core mechanical pencil
  • Anti-broken core mechanical pencil
  • Anti-broken core mechanical pencil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, such as image 3 , Figure 5 As shown, when selecting the manually controlled point cover 3 to cooperate with the pen barrel, when installing the lead core, first move the lever 13 to move the A pressing plate 12 upwards, the pressure on the pressing plate 6 decreases, and the pressure plate 6 below The powder filler 11 is in a loose state, and then the lead core installation process is carried out in the same way as in the traditional way. The lead core passes through the protective core tube 5, the sealing hose 10, and the chuck 16 successively, and enters the core tube 2.

[0024] After the lead core is installed, turn the lever 13 in the opposite direction, the pressing plate A 12 moves downward, and drives the pressing plate 6 to move downward together, and the pressing plate 6 exerts pressure on the powdery filler 11, and the powdery filler 11 is in a tight state At the same time, the sealing hose 10 is pressed to wrap the lead core, so as to comp...

Embodiment 2

[0025] Embodiment two, such as figure 2 , Figure 4 As shown, when the automatic control point sleeve 3 is selected to cooperate with the pen tube, when the lead core is installed, the core tube 2 needs to be pressed downward, the chuck 16 moves downward and opens, and the wedge-shaped latch 15 at the bottom of the chuck 16 moves together Move down and insert into the cylindrical socket 17, because the bottom of the wedge-shaped bolt 15 is an inclined slope, so it can drive the B pressing plate 26 to rotate, cooperate with the thread to make the pressing plate 12 move upward, the pressure on the pressing plate 6 decreases, and the pressing plate 6 The powder filler 11 below is in a loose state, and then the lead core is installed.

[0026] After the lead core is installed, loosen your finger, the core tube 2 moves upward, the chuck 16 and the wedge-shaped pin 15 move upward together, the wedge-shaped pin 15 is pulled out from the cylindrical socket 17, and under the action o...

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Abstract

The invention discloses a mechanical pencil for preventing a pencil lead break, and relates to the field of stationery. The mechanical pencil for preventing the pencil lead break comprises a penholder and a lead pipe through the penholder. The bottom of the lead pipe is in a threaded connection with a thread groove of a pencil point sleeve, and a pencil cap is inserted on the top of the lead pipe. A lead protection pipe is fixed under the bottom of the pencil point sleeve. The mechanical pencil for preventing the pencil lead break is characterized in that the lower part of a locking tooling groove of the pencil point sleeve is slidingly and hermetically fitted with a pressure plate, and the upper part of the locking tooling groove is in a threaded connection with a compaction device, wherein the compaction device is in contact with the pressure plate for cooperation; bulges are symmetrically distributed on the side walls of the pressure plate; vertical grooves A are arranged at the inner side walls of the pencil point sleeve; the bulges are slidingly fitted with the vertical grooves A; the bottom end of the pressure plate and the top end of the lead protection pipe are connected by a sealed hose; and powdery infillings are filled in a hollow cavity between the sealed hose and the pencil point sleeve. The mechanical pencil for preventing the pencil lead break has the advantages that the extra space in the hollow pencil point sleeve can be filled without changing the main structure of the mechanical pencil in the prior art, and the movable range of the pencil lead in the pencil point sleeve can be reduced, so that the occurrence of the pencil lead break can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of writing stationery. Background technique [0002] As a stationery commonly used in daily study and life, the mechanical pencil has a very mature technology. At present, there are many kinds of mechanical pencils on the market with different functions. However, in daily use, it is unavoidable that the lead core will be broken. For example, when installing the lead core, if the position is not particularly good, the lead core will be directly broken in the tip sleeve. Or when the mechanical pencil falls on the ground, it is easy to cause the lead core in the tip sleeve to break into many knots. The reason is that there is a gap between the lead core and the protective core tube, and the pointed sleeve is a hollow structure, so that the lead core can move a certain distance in the pointed sleeve. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43K21/00
CPCB43K21/00
Inventor 孟红琳
Owner TAIZHOU LIKE TECH CO LTD
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