CN201124660Y

CN201124660Y - Ink-lack-warning pen

Info

Publication number: CN201124660Y
Application number: CNU2007200875583U
Authority: CN
Inventors: 黄执文
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-16
Filing date: 2007-10-16
Publication date: 2008-10-01
Anticipated expiration: 2017-10-16

Abstract

A ink-lacking alarming pen is characterized in that the a first probe (5) is arranged close to the penpoint on the inner wall of the ink sac of the pen; a second probe (6) is arranged on the inner wall of the ink sac with an axial distance of 3mm to 10mm from the first probe (5); a galvanic circle consisting of a button cell battery (4), an LBD (1), a mercury switch (2) and a lead is mounted on a pen body (7). The operating principle of the pen is to utilize the ink as FeSO4 electrolyte conducting liquid and as a part of the galvanic circle, so that when the ink is lacking, the galvanic circle is disconnected, and the LBD can emit light as an alarm indication when the galvanic circle is in the conducting state with adequate electricity. The pen has the advantages of convenient use, direct-viewing design, simple structure and low cost.

Description

Owe black warning pen

Technical field

The utility model relates to stationery, a kind of specifically black warning pen of owing with the indicator lamp warning.

Background technology

Ink pen is long because of its handwriting holding time, is formal examination and the legal writing pen of various legal documents, has to add ink injection repeatedly and infinitely use advantage, becomes the common tool of study and work.But, can often cause the discomfiture and helplessness that in the process of using, do not have ink not write suddenly owing to when ink is about to use up, do not have the shortcoming of ink water level display alarm.Especially important when writing occasion in examination etc., can in the stylus whether ink be arranged easily immediately, thereby can save time, seem particularly important.

Summary of the invention

The purpose of this utility model provides a kind of pen that can the instant playback ink whether is about to use up.

Described owing it is characterized in that of black warning pen: pen ink sac inwall is provided with probe one near pen tip, the ink sac inwall axially is provided with probe two apart from probe one 3mm～10mm place, and a pen body at least also is equipped with the galvanic circle that button cell, light emitting diode, mercoid switch and lead constitute.

The described black warning pen light emitting diode 1 when owing China ink of owing is lighted alarm condition work, be connected to a triode 3 in its circuit, wherein colelctor electrode-the emitter stage of button cell 4, light emitting diode 1 and triode 3, mercoid switch 2 and resistance constitute a loop, and the base stage of triode 3 is by probe 1, probe 26 and 4 anodal linking to each other of button cell.This owes black warning pen can be that light emitting diode is lighted warning when owing China ink, be connected to a triode in its circuit, wherein the colelctor electrode of button cell, light emitting diode and triode-emitter stage constitutes a loop, also can include mercoid switch and resistance in the loop, the base stage of triode is by probe one, probe two and button cell is anodal links to each other, and wherein also can go here and there mercoid switch and resistance; Also can be that light emitting diode extinguishes warning when owing China ink, its circuit be with light emitting diode, button cell, mercoid switch, probe one, probe two series connection.

Principle of the present utility model is to utilize ink to be FeSO ₄The electrolyte conducting liquid can become the part of galvanic circle, and the loop disconnects when ink is owed China ink, and light emitting diode can be luminous in the loop conducting and when suitable electric energy is arranged, as the indication of reporting to the police.The utility model has the advantages that: easy to use, directly perceived, simple in structure, with low cost.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model,

Fig. 2 owes black luminous warning embodiment line map,

Fig. 3 owes black light emitting diode to extinguish the embodiment line map.

Among the figure: 1-light emitting diode, 2-mercoid switch, 3-triode, 4-button cell, 5-probe one, 6-probe two, 7-body.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further specified: as Fig. 1, in fact light emitting diode 1 can be installed in any place of pen, light head can see that outwardly indication gets final product, the installation of Fig. 1 is an embodiment of the present utility model, in order to reach downward when pen nib, be in when writing state, just can see report to the police indication or its ink inside state, mercoid switch 2 can be in horizontal under this kind state, promptly two contacts of mercoid switch 2 are on the same horizontal plane at this moment.In order to see that ink owes black situation, pop one's head in 1 and probe 26 should be in the lower end of ink sac this moment, the one 5 ink sac bottoms that are positioned at this moment of just can popping one's head in, popping one's head in 26 is higher than probe 1 and is provided with, and can be higher than probe one 53mm～10mm, to report to the police in advance.

It among Fig. 2 the circuit of owing black luminous warning embodiment, when ink is sufficient, because the ink electric action stretches into metal probe 1 and probe 26 conductings in the pen ink sac, triode Base-Emitter potential difference is minimum, and base current and collector current are all near zero.Triode 3 not conductings, light emitting diode 1 does not work.When ink below 26, does not have ink at probe between the contact, pop one's head in 1 and probe 26 disconnect, the then base stage of triode, emitter stage forward conduction, emitter is to the colelctor electrode conducting, light emitting diode 1 gets electric, lights warning.Prompting need add ink injection!

Fig. 3 owes black light emitting diode to extinguish warning embodiment circuit, when ink is sufficient, because the ink electric action stretches into metal probe 1 and probe 26 conductings in the pen ink sac, and whole circuit closed, light emitting diode 1 is lighted, and the indication ink is enough.When ink below 26, does not have ink at probe between the contact, pop one's head in 1 and probe 26 disconnect, light emitting diode 1 extinguishes warning.Prompting need add ink injection.

When pen is erect nib down, when promptly normally writing state.Two contact short of mercoid switch 2, power connection.Entire circuit enters duty.When pen need not or turn around.Pop one's head in 1 and probe 26 disconnect.Circuit is not worked.Mercoid switch 2 can play the automatic power supply switch effect.Simultaneously when nib state up, or play the economize on electricity effect when not using.

Claims

1. owe black warning pen for one kind, it is characterized in that: pen ink sac inwall is provided with probe one (5) near pen tip, the ink sac inwall axially is provided with probe two (6) apart from probe one (5) 3mm～10mm place, and a pen body (7) at least also is equipped with the galvanic circle that button cell (4), light emitting diode (1), mercoid switch (2) and lead constitute.

2. according to claim 1ly owe black warning pen, it is characterized in that: the described black warning pen light emitting diode (1) when owing China ink of owing is lighted alarm condition work, be connected to a triode (3) in its circuit, wherein colelctor electrode-the emitter stage of button cell (4), light emitting diode (1) and triode (3), mercoid switch (2) and resistance constitute a loop, and the base stage of triode (3) links to each other by probe one (5), probe two (6) and button cell (4) positive pole.