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Temperature difference and pressure difference resistant writing tool

A writing tool, temperature difference resistance technology, applied in writing utensils, printing, other ink pens, etc., can solve the problems of high precision requirements, complex design, limited ink and so on

Active Publication Date: 2016-08-10
NINGBO WUYUN PEN MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of roll core or cotton tube as the ink storage medium usually has the following disadvantages: First, the use of roll core or cotton tube as the ink storage medium, because of the volume of the roll core or cotton tube itself, the stored ink is very limited
However, the ink supply mechanism of this gas-liquid exchange guides the air through the capillary channel. When the pressure in the ink tube changes, the ink enters the liquid storage chamber through the capillary channel. The liquid storage chamber is provided with an inverted V-shaped anti-flow part surrounding the ink supply channel. Complexity, high precision requirements, and difficult manufacturing
[0004] The U.S. Patent No. US6,095,707 and the U.S. Patent Application Publication No. US20030068191A1 both design a straight liquid writing instrument with a capillary reservoir. Around, when the external temperature and pressure change is small, the capillary reservoir can absorb the excess released from the ink tube to prevent leakage, but when the external temperature and pressure change greatly, it is easy to leak ink
[0005] The Chinese patent application with publication number CN1749029A and publication number CN101032905A has designed a straight-liquid writing tool with a plurality of connecting pipes, the connecting pipes are inserted in the ink absorbing body and communicate with the ink in the ink pipe, and the nib is inserted in the ink absorbing body. In the body, but this design is easy to cause ink leakage under the condition of external negative pressure

Method used

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  • Temperature difference and pressure difference resistant writing tool
  • Temperature difference and pressure difference resistant writing tool
  • Temperature difference and pressure difference resistant writing tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] see figure 1 As shown, in the first specific embodiment of the present invention, the writing instrument of the present invention resistant to temperature difference and pressure difference includes a pen holder 1, a water diversion core 2, a nib 3 and an adjustment part 4, and the bottom of the pen holder 1 is provided with a writing part 11, The nib 3 is partially inserted in the writing part 11, and a pen cap 10 can also be set. The pen cap 10 is sleeved on the writing part 11. The nib 3 is located in the pen cap 10. The top of the penholder 1 is provided with an ink storage part 12, and the ink storage part 12 is filled with ink 13 , and the regulating part 4 includes a first partition 41 , an air duct 8 and a second partition 42 . The water diversion core 2 passes through the first partition 41 and the second partition 42 , the upper part of the water diversion core 2 is in contact with the ink 13 , and the lower part of the water diversion core 2 is in contact wit...

Embodiment 2

[0082] see figure 2 As shown, the second embodiment of the present invention is similar in structure and working principle to the first embodiment of embodiment 1, the difference is:

[0083] The extension length of the air duct 8 in the first air interlayer 43 is thirty-nine fortieths of the dimension of the first air interlayer 43 along the length direction of the pen holder 1; the width of the first gap 46 is 1 millimeter, and the thickness is 0.01mm and height is 0.1mm;

[0084] In addition, the buffer storage part 5 is disposed in the writing part 11 and wraps a part of the water-inducing core 2 located in the writing part 11 . The buffer storage part 5 may be a porous ink absorption structure, and the pores in it form an air channel connecting the adjustment part 4 with the air path of the outside atmosphere. Of course, other structural arrangements can also be adopted so that the buffer storage part 5 is air-connected to the adjustment part 4 and the outside atmosphe...

Embodiment 3

[0088] see image 3 As shown, the third embodiment of the present invention is similar in structure and working principle to the second embodiment of embodiment 2, the difference is:

[0089] The adjustment part 4 also includes a first sleeve 71 extending from the second partition 42 to the first air barrier 43, the water diversion core 2 passes through the first sleeve 71, and the inner diameter of the first sleeve 71 is the same as that of the water diversion core 2. The outer diameters are matched so that there is no space between the two, and the air guide tube 8 is arranged outside the position where the first sleeve 71 extends from the second partition 42;

[0090] The extension length of the first sleeve 71 in the first air barrier layer 43 is nine tenths of the size of the first air barrier layer 43 along the length direction of the pen holder 1, and the length of the air guide tube 8 in the first air barrier layer 43 The extension length is nineteen-twentieth of the ...

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PUM

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Abstract

The invention provides a temperature difference and pressure difference resistant writing tool. Two ends of a penholder are respectively provided with a writing portion and an ink storage portion. A part of a nib is inserted in the writing portion. A first separator plate and a second separator plate of an adjusting portion are arranged at interval to form a first air interlayer. The first separator plate contacts the ink of the ink storage portion. The second separator plate is adjacent to the writing portion. An ink feeder passes through the first separator plate, the first air interlayer, and the second separator plate. A first gap is arranged between the ink feeder and the first separator plate. An air guide pipe is arranged on the second separator plate and extends into the first air interlayer. The writing tool is large in ink capacity, little in residual ink amount, and smooth and even in writing, and even though external temperature and pressure variations are relatively large, the writing tool does not easily leak ink. The tool is simple and stable in structure, and resistant in pressure difference and temperature difference, and is easy to transport. The writing tool is high in ink utilization ratio and convenient in use, and reduces waste and reduces environmental pollution.

Description

technical field [0001] The invention relates to the technical field of daily necessities, in particular to the technical field of office supplies, in particular to a writing implement resistant to temperature difference and pressure difference. Background technique [0002] Writing instruments such as marker pens, whiteboard pens, highlighters, etc. usually use roll-wrapped cores or cotton tubes as ink storage media. However, the use of roll cores or cotton tubes as the ink storage medium usually has the following disadvantages: First, the use of roll cores or cotton tubes as the ink storage medium, because the volume of the roll core or cotton tube itself, stores ink is very limited. Secondly, with the writing tool that uses roll-wrapped core or cotton tube as the ink storage medium, as the writing continues during the writing process, the ink output per unit writing length will gradually decrease, and the written handwriting will gradually fade. Another disadvantage of wr...

Claims

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Application Information

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IPC IPC(8): B43K8/02B43K8/04
CPCB43K8/03B43K8/04
Inventor 闻向阳闻阳王立平
Owner NINGBO WUYUN PEN MFG