CN201068023Y

CN201068023Y - Myopia-prevention automatic regulating and controlling pen

Info

Publication number: CN201068023Y
Application number: CNU2007201113553U
Authority: CN
Inventors: 戚新琪
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-26
Filing date: 2007-06-26
Publication date: 2008-06-04
Anticipated expiration: 2017-06-26

Abstract

The utility model relates to a short-eyesight prevention automatic adjusting and controlling pen which comprises an upper penholder, a lower penholder and a pen point sleeve which are mutually connected, wherein, an infrared sensor component, a battery, and a balance weight piece are arranged in the upper penholder, a backstop rod, a backstop axis and a pen core sleeve are arranged in the lower penholder, a return spring is arranged between the pen core sleeve and the lower penholder, simultaneously, a pen core is installed in the pen core sleeve, a guiding hole is arranged in the lower penholder, a steel needle is arranged in the guiding hole, and the lower end of the steel needle is nested at the top end of the pen core sleeve; simultaneously, an electromagnetic coil is arranged above the backstop rod on the lower penholder; magnet steel is arranged at the both ends of the backstop rod, one end of the backstop rod presents a bending shape, wherein, a piece of magnet steel is attached at the top end of the steel needle; a mechanical switch is also composed. Through the structure, the utility model has the advantages that the structure is simple, the pen is not easy to be damaged, the power consumption is small, and simultaneously, the sitting posture and the writing distant can be corrected enforcedly.

Description

Myopia prevention auto-control pen

Technical field

The utility model relates to a kind of stationery, especially relates to a kind of myopia prevention auto-control pen.

Background technology

Traditional especially various writing appliances of using of students in middle and primary schools of teenager that are used for, various pencils are arranged, ball pen and pen etc., when the student utilizes these to write, usually can not keep correct posture, and eyes and paper can not guarantee suitable distance, causes myopia or other vision disorders easily.Simultaneously,, very easily cause the distortion of student's spinal curvature, bow-backed phenomenon occurs because of the fault of writing for a long time.

For this reason, someone has designed the patent (number of patent application: 02215255.5) of a kind of " myopia prevention solar energy auto-control lettering pen " by name, it comprises pen core, pen cap, penholder and infrared probe, it is characterized in that in the interior adapter sleeve of penholder, being provided with lever-like retaining pin, be provided with the single-phase permanent micromachine at the penholder inner chamber, there is shifting block to touch on the rotor with the retaining pin, be provided with one section transparent lasso in the infrared probe outer, the penholder rear end is provided with movable axis, movable axis has been fixed with the weight plate and the solar panel of weight effect, movable axis also cooperates by cover in fixing and rotating jacket are movable, make weight plate be in the below of rear end penholder all the time, thereby make the infrared probe that writes all the time all towards people's face direction, when the student not by correct attitude and normalized distance when writing, automatic control circuit can allow the motor stator core coil electricity produce magnetic field magnetic force and epitrochanterian shifting block be rotated and touch with the retaining pin and make it to be offset stop dog position, and pen core retraction nib can not be write.

Though this patent has solved the problem of Writer's sitting posture and Writing distance, this project organization is comparatively complicated, and permanent magnet micro motor damages easily, and power consumption is big; Secondly, it can only point out the writer to correct posture, and can not play the effect of forcing correcting sitting postures and Writing distance to the writer.

Summary of the invention

The utility model mainly is to solve above-mentioned technical problem, thereby provides a kind of simple in structure, and not fragile, power consumption is little, can force the myopia prevention auto-control pen of correcting sitting postures and Writing distance simultaneously.

Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: comprise the interconnective penholder of going up, following penholder and pen cap, be provided with infrared sensor package free to rotate in the last penholder, battery and counterweight, be provided with the retaining bar in the following penholder, retaining axle and pen core cover, between pen core cover and following penholder, be provided with back-moving spring, in the pen core cover, pen core is housed simultaneously, be provided with pilot hole in the penholder down described, be provided with draw point in this pilot hole, the lower end of described draw point is nested in the top of pen core cover; On following penholder, the top of retaining bar is provided with solenoid simultaneously; Two ends at described retaining bar are equipped with magnet steel, and an end of this retaining bar is bending, and wherein the steel of lower end is adsorbed on the top of draw point; Also include a mechanical switch, described mechanical switch, battery, infrared sensor package and solenoid are connected into a loop.

In the time of the utility model operate as normal, the circuit communication that described mechanical switch, battery, infrared sensor package and solenoid are connected into can connect with lead between the parts in loop.When normally writing, infrared sensor package is not sensed people's face, and current in loop is very little, only have only tens microamperes, almost do not have voltage drop on the solenoid, therefore, the magnetic field at solenoid two ends is very small, can't exert an influence to the retaining bar, and the retaining bar is moved.The magnet steel of retaining bar one end is adsorbed on the top of draw point, make pen core be enclosed within when writing can't the indentation pen in, guaranteed to write normally.Otherwise, when writing posture incorrect, eyes are too near the desktop time, infrared sensor package is sensed people's face, and it is big that the electric current of solenoid becomes, the different polarity of the magnetic field of magnet steel of solenoid generation and retaining bar top, because the magnetic field same sex is repelled each other, the effect that there is a natural attraction between the sexes, the retaining bar rotates around the retaining axle, makes the magnet steel of retaining bar lower end leave the top of draw point.When writing,, cause and normally to write because the elastic force of back-moving spring returns pen core much smaller than the dynamics of normally writing.In case get back to normalized distance when writing, infrared sensor package just becomes high resistance, the electric current of solenoid diminishes, the magnetic field of draw point and solenoid and faint, the magnet steel of retaining bar lower end is returned to and the draw point attracting state, under action of reset spring, promote the pencil lead cover simultaneously, make pen core get back to the state that normally to write, thereby play the effect of forcing to correct Writing distance and posture.In this process, guarantee that the magnet steel of solenoid and top produces different polarity, retaining bar one end is bending simultaneously, and the magnet steel of retaining bar lower end is adsorbed on the draw point, the magnet steel that guarantee retaining bar upper end is not on the center line of solenoid.Because the solenoid that adopts rotates the form of retaining bar, makes the utility model simple in structure, not fragile, power consumption is little, and can force correcting sitting postures and Writing distance.

As preferably, below described retaining bar, be provided with one equally draw point is enclosed in the solenoid of center, the solenoid of this solenoid and retaining bar top interconnects, and becomes the part in described loop.

Below the retaining bar, be provided with a solenoid equally, and this solenoid is enclosed in the center with draw point, part as the loop, solenoid above the retaining bar produces in the magnetic field, this solenoid also can produce a magnetic field, the magnetic field that this solenoid produces want be adsorbed on draw point on the magnetic field of magnet steel identical, can promote the retaining bar and rotate.Increase a solenoid here, help promoting the retaining bar more and rotate.

As preferably, described infrared sensor package is made up of infrared receiver, control circuit and RF transmitter, and described control circuit includes analog switch, electric capacity, diode, resistance and three-wire system infrared induction spare; Be provided with upper and lower two conducting top needle stands at the two ends of infrared sensor package, wherein Shang Fang conducting top needle stand is connected with battery, and the conducting top needle stand of below is connected with the solenoid of retaining bar top, be provided with the conduction thimble on the conducting top needle stand, described conduction thimble links to each other with the conducting top needle stand with control circuit respectively.

Control circuit adopts the integrated circuit of super low-power consumption, only needs several microamperes electric current during quiescent operation, and power consumption is less; RF transmitter and infrared receiver can be examined side Writing distance and posture, when less or writing posture is incorrect when Writing distance, transmit information to control circuit.Infrared induction spare is sensed people's face approaching the time, analog switch is opened, it is big that electric current becomes, and makes the solenoid two ends produce pressure drop, and it is big that the magnetic field at coil two ends just becomes, cause the skew of retaining bar, the voltage at conduction thimble two ends is very low, and this moment, the operating voltage of three-wire system infrared induction spare had electric capacity to provide, and diode can make electric capacity not discharge to the loop, selecting for use when three-wire system infrared induction spare can low-voltage and operating voltage range when very big again, and diode can.

As preferably, described two solenoids are installed in down in upper and lower two annular grooves of penholder, described pilot hole is located at the centre of below annular groove, described draw point and be adsorbed on magnet steel on the draw point on the center line of solenoid, and the magnet steel of the other end then departs from this center line.

In upper and lower two annular grooves solenoid being installed, is a newel in the middle of each annular groove, pilot hole just open below on the newel of annular groove, when draw point is put into pilot hole, promptly be placed on the bosom of below solenoid.The magnet steel of upper and lower end be not total on the straight line, and the magnet steel of lower end is adsorbed on the top of draw point, promptly on the axis of two newels.

As preferably, described mechanical switch comprises fixing still and moving plate movably, is being with the Casing with pen that moving plate and still are separated on the penholder down simultaneously.

When the utility model was no, Casing with pen was enclosed within down on the penholder, and the inwall of Casing with pen contacts and promote moving plate with moving plate, made moving plate and still separately, caused whole mechanical switch for the state that disconnects, and whole loop just disconnects; When needs used, Casing with pen was taken away, and made moving plate contact with still, and whole loop will be communicated with, and made that the utility model can operate as normal.

As preferably, the end of penholder is equipped with the cap for brush on described, this cap for brush and above the conducting top needle stand between be provided with battery, conducting strip and spring successively, described battery is a button cell.

The cap for brush is installed in the end of penholder, forms an inner space, installs battery, conducting strip and spring in this space.Conducting strip one side contacts with battery, and opposite side contacts with spring, and the opposite side of spring contacts with the conducting top needle stand.Conducting strip and spring make that the conductive effect of battery and conducting top needle stand is better, the spring size that can regulate the space simultaneously, help battery installation and with the contacting of miscellaneous part.The volume of button cell is little, and the electric power abundance can satisfy needs of the present utility model fully, certainly in the case of necessary, also can adopt other suitable batteries to replace.

As preferably, described counterweight is arranged on the edge of infrared sensor package one side.

The metal that the counterweight density available is bigger is made, because the gravity effect is in the below on inclined plane of pen all the time, thereby makes the infrared sensor package can be all the time towards people's face operate as normal.

As preferably, the external diameter of described pen core cover bottom matches with the internal diameter of following penholder, described pen core overlap below be provided with back-up ring.

The pen core cover is socketed in the bar of starting writing and can slides up and down in starting writing, and back-up ring is spacing in order to what pen core was overlapped; Also can be without back-up ring, as long as the length of lengthening pen core cover, come spacing to the pen core cover by pen cap.

Therefore, the utlity model has following characteristics: 1. it mainly comprises retaining frame for movement and infrared sensor package and solenoid, and no micro motor is simple and reasonable, and is not fragile; 2. infrared sensor package detects Writing distance and passes through the control of the size of solenoid current to retaining frame for movement, forces to correct Writing distance and posture, thereby effectively plays pre-myopia prevention and correct the effect of eyesight; 3. control circuit adopts the integrated circuit of super low-power consumption, only needs several microamperes electric current during quiescent operation, and power consumption is less, and is comparatively energy-conservation.

Description of drawings

Accompanying drawing 1 is a kind of structural representation of the present utility model;

Accompanying drawing 2 is circuit theory diagrams of Fig. 1;

Accompanying drawing 3 is the enlarged drawings at A place among Fig. 1;

The specific embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1: as shown in Figure 1, in the present embodiment, adopt the form of two solenoids 14, in the utility model, following penholder 1 is connected with last penholder 2, and half the following penholder 1 of having an appointment stretches in last penholder 2, other end at last penholder 2 is equipped with a cap for brush 7, the other end at following penholder 1 then is connected with pen cap 3, the outside at described penholder 1 down and pen cap 3 is with Casing with pen 6, the end of this Casing with pen 6 heads on the end of penholder 2, and the inwall of described Casing with pen 6 pasting the outer wall of penholder 1, and the outer wall of the outer wall of Casing with pen 6 and last penholder 2 at grade.

The first half at following penholder 1 has two annular grooves 17, two interconnective solenoids 14 is installed in described annular groove 17, and has one to hold retaining bar 15 and retaining axle 18 between two annular grooves 17.Retaining axle 18 is installed in retaining bar 15 centers, described retaining bar 15 can rotate around retaining axle 18, be provided with magnet steel 16 at the two ends of described retaining bar 15, and the retaining bar 15 that is positioned at retaining axle 18 belows is straight shape, the retaining bar 15 that is positioned at retaining axle 18 tops is then crooked on one side, and the retaining bar 15 of the magnet steel 16 of curved end and retaining axle 18 belows is not on same straight line.The latter half at following penholder 1 is equipped with pen core cover 13 and back-moving spring 19, and described pen core cover 13 is the hollow columnar of an end opening, in this hollow columnar pen core is installed.Opening part at pen core cover 13 forms an outside boss, and back-moving spring 19 is installed between the annular groove 17 of this boss and below, is enclosed within the outside of pen core cover 13.Between pen core cover 13 and pen cap 3, ring washer 31 is installed, overlaps 13 landings to prevent pen core.Below annular groove 17 centers have a pilot hole 11, pen core is overlapped the space at 13 places with this pilot hole 11 and communicate with each other in the space at retaining bar 15 places, and in this pilot hole 11, be movably installed with draw point 12, the top of the pen core cover 13 that these draw point 12 1 ends are nested, magnet steel 16 absorption of an end and retaining bar 15 lower ends.The magnet steel 16 of retaining bar 15 lower ends is on the axis of two solenoids 14, and the magnet steel 16 of retaining bar 15 upper ends departs from the axis of solenoid 14.

In the upper end of last penholder 2, two inside boss are arranged, this boss and above annular groove 17 between be provided with infrared sensor package 5.Described infrared sensor package 5 is made up of infrared receiver 51, control circuit 52 and RF transmitter 53.Described control circuit 52 includes analog switch 521, electric capacity 522, diode 523, resistance 524 and three-wire system infrared induction spare 525 (referring to Fig. 2).Be provided with upper and lower two conducting top needle stands 22 at the two ends of infrared sensor package 5, the conducting top needle stand 22 of top is installed between two inside boss, and the conducting top needle stand 22 of below be installed in the top annular groove 17 above, simultaneously the conducting top needle stand 22 of below is connected with the solenoid 14 of top.Be provided with conduction thimble 23 on conducting top needle stand 22, described conduction thimble 23 links to each other with conducting top needle stand 22 with control circuit 52 respectively.Between two the inside boss and the cap for brush 7, battery 21 is installed, conducting strip 24 and spring 25.Conducting strip 24 1 sides contact with battery 21, and opposite side contacts with spring 25, and the opposite side of spring 25 contacts with conducting top needle stand 22.Battery 21 adopts volume little, the button cell of electric power foot.Substantially can keep the utility model with one group of three button cell used three months.

As shown in Figure 3, Casing with pen 6 and last penholder 2 intersections are equipped with a mechanical switch 4, and described mechanical switch 4 comprises still 41 and moving plate 42, and still 41 is fixedly mounted on the inwall of penholder 2 ends, and moving plate 42 can move.Described mechanical switch 4, battery 21, infrared sensor package 5 and upper and lower two solenoids 14 are connected into a loop, and the parts in the loop can connect with lead.When Casing with pen 6 was enclosed within down on the penholder 1, the inwall of Casing with pen 6 contacted with moving plate 42, and moving plate 42 is pushed away still 41, made the loop disconnect; When Casing with pen 6 was taken down, moving plate 42 outwards flicked, and contacted circuit communication, the utility model operate as normal with still 41.

As shown in Figure 2, operation principle of the present utility model is as follows: described mechanical switch 4, battery 21, conduction thimble 23, infrared sensor package 5 and upper and lower two solenoids 14 are connected into a loop.When Casing with pen 6 was removed, moving plate 42 contacted with still 41, i.e. mechanical switch 4 closures, whole circuit communication.RF transmitter 53 and infrared receiver 51 can be examined side Writing distance and posture.When writing posture is correct, infrared sensor package 5 is not sensed people's face, electric current in returning is very little, almost there is not voltage drop on the solenoid 14, the magnetic field that is solenoid 14 two ends is very small, and the magnet steel of retaining bar 15 lower ends is adsorbed on the top of draw point 12, does not produce skew, make not retractable of pen core cover 13, can normally write.Incorrect when writing posture, when people's face was too approaching, the three-wire system infrared induction spare 525 in the control circuit 52 was sensed people's face, analog switch 521 closures, it is big several milliamperes that electric current becomes, and produces voltage drop on the solenoid 14 and become big, and promptly the magnetic field at solenoid 14 two ends becomes big.The magnet steel 16 of retaining bar 15 lower ends and the solenoid of below 14 produce identical magnetic field, and the solenoid 14 of the magnet steel 16 of retaining bar 15 upper ends and top produces different magnetic field, cause 15 skews of retaining bar, the voltage at conduction thimble 23 two ends is very low, the operating voltage of three-wire system infrared induction spare 525 has electric capacity 522 to provide at this moment, diode 523 can make electric capacity 522 not discharge to the loop, selecting for use when three-wire system infrared induction spare 525 can low-voltage and operating voltage range when very big again, and diode 522 can.After retaining bar 15 skew, the magnet steel 16 of lower end leaves draw point 12, at this moment, writes firmly much larger than the elastic force of back-moving spring 19, and the 13 inside indentations of pen core cover force the writer to correct writing posture and distance.When getting back to normal writing posture, infrared sensor package 5 stops to solenoid 14 energisings, no magnetic field produces, under the effect of back-moving spring 19, pen core cover 13 outwards ejects, and the magnet steel 16 of lower end is adsorbed on the draw point 12, and pen core cover 13 is withstood, and makes the utility model reply at the state that can normally write.

In the above-described embodiment, there are two solenoids 14, when the above-mentioned solenoid below retaining bar 15 14 is non-existent, the utility model also can normal operation, just having lacked one when retaining bar 15 bars rotate tries hard to recommend moving, do not hinder use of the present utility model, other principle is the same.

Claims

1. myopia prevention auto-control pen, comprise the interconnective penholder of going up, following penholder and pen cap, be provided with infrared sensor package free to rotate in the last penholder, battery and counterweight, be provided with the retaining bar in the following penholder, retaining axle and pen core cover, between pen core cover and following penholder, be provided with back-moving spring, in the pen core cover, pen core is housed simultaneously, it is characterized in that being provided with pilot hole (11) in the penholder (1) down described, be provided with draw point (12) in this pilot hole (11), the lower end of described draw point (12) is nested in the top of pen core cover (13); On following penholder (1), the top of retaining bar (15) is provided with solenoid (14) simultaneously; Be equipped with magnet steel (16) at the two ends of described retaining bar (15), and an end of this retaining bar (15) is bending, wherein the magnet steel of lower end (16) is adsorbed on the top of draw point (12); Also include a mechanical switch (4), described mechanical switch (4), battery (21), infrared sensor package (5) and solenoid (14) are connected into a loop.

2. myopia prevention auto-control pen according to claim 1, it is characterized in that being provided with equally a solenoid (14) that draw point (12) is enclosed in the center in the below of described retaining bar (15), the solenoid (14) of this solenoid (14) and retaining bar (15) top interconnects, and becomes the part in described loop.

3. myopia prevention auto-control pen according to claim 1, it is characterized in that described infrared sensor package (5) is made up of infrared receiver (51), control circuit (52) and RF transmitter (53), described control circuit (52) includes analog switch (521), electric capacity (522), diode (523), resistance (524) and three-wire system infrared induction spare (525); Be provided with upper and lower two conducting top needle stands (22) at the two ends of infrared sensor package (5), wherein Shang Fang conducting top needle stand (22) is connected with battery (21), and the conducting top needle stand (22) of below is connected with the solenoid (14) of retaining bar (15) top, be provided with conduction thimble (23) on conducting top needle stand (22), described conduction thimble (23) links to each other with conducting top needle stand (22) with control circuit (52) respectively.

4. myopia prevention auto-control pen according to claim 1 and 2, it is characterized in that described two solenoids (14) are installed in down in upper and lower two annular grooves (17) of penholder (1), described pilot hole (11) is located at the centre of below annular groove (17), described draw point (12) and be adsorbed on magnet steel (16) on the draw point (12) on the center line of solenoid (14), the magnet steel of the other end (16) then departs from this center line.

5. myopia prevention auto-control pen according to claim 1, it is characterized in that described mechanical switch (4) comprises fixing still (41) and moving plate (42) movably, be with the Casing with pen (6) that moving plate (42) and still (41) are separated on the penholder (1) down simultaneously.

6. according to claim 1 or 3 described myopia prevention auto-control pens, it is characterized in that the end of penholder (2) is equipped with the cap for brush (7) on described, be provided with battery (21), conducting strip (24) and spring (25) between the conducting top needle stand (22) of this cap for brush (7) and top successively, described battery (21) is a button cell.

7. according to claim 1 or 3 described myopia prevention auto-control pens, it is characterized in that described counterweight (54) is arranged on the edge of infrared sensor package (5) one sides.

8. myopia prevention auto-control pen according to claim 1 is characterized in that the external diameter of described pen core cover (13) bottom matches with the internal diameter of following penholder (1), is provided with back-up ring (31) in the below of described pen core cover (13).