CN206224851U - A kind of telescopic polychrome color break-up teaching rod - Google Patents

Abstract

The utility model discloses a kind of telescopic polychrome color break-up teaching rod, belong to teaching aid technical field.The utility model includes socket, handle box and lighted hats, and handle box and lighted hats are respectively arranged at socket two ends, and socket is Multi-section retractable structure；Also include elastic force clamp, light emitting diode and thin film circuit, often save tube walls and paste three thin film circuits, the two ends of thin film circuit and corresponding socket side-walls offer fixing hole, and two adjacent sections socket is fixed in inserting fixing hole by elastic force clamp；Power supply, control circuit integrated module, regulation resistance are placed in described handle box, handle box exterior side wall sets switch, the light emitting diode of multiple different colours is provided with lighted hats, by switch motion connection circuit and adjust the luminous intensity of light emitting diode.The utility model combines the advantage of laser pen and teacher's pointer, has played very crucial warning to explanation knowledge point and has emphasized, largely improves teaching efficiency.

Description

A kind of telescopic polychrome color break-up teaching rod

Technical field

The utility model is related to teaching aid technical field, is taught more specifically to a kind of telescopic polychrome color break-up Rod is learned, the utility model is a kind of teaching aid for strengthening teaching prompting effect.

Background technology

Teaching rod is school or training organization carry out education activities are essential and frequency of use is high teaching aid it One, with popularizing for modern multimedia instructional technology, the use for rod of imparting knowledge to students is more universal.Conventional teaching at present Rod possess draw high and shrink function, this kind teaching rod be made up of Multi-section telescopic rod, not the used time can pack up saving space.But That, with network Development, communication tool is popularized all the more, cause teaching object (student) classroom listen to the teacher attention rate decline；In addition The application of teaching multimedia technology and popularization, content of courses capacity increases in the unit interval, and these factors cause student easily to go out Now divert one's attention and fatigue.In such cases, simple telescopic teaching rod can not substantially meet the teaching demand of modern classroom.

If when classroom teaching is appropriate, to Key Points or material time section, opening the flash of light on teaching rod Warning, is closely clicked on Key Points by stroboscopic light sources, not only Key Points is played with a reminding effect, together When to dispelling the fatigue of listening to the teacher of student, the cohesion student consciousness of listening to the teacher suffers from important effect, so as to improve classroom teaching effect.

The teaching rod with laser, such as China Patent No. ZL201020239181.0 are widely present in the market, are authorized On January 5 2011 day for announcing, invention and created name is：Flexible teacher's pointer with laser indicator lamp；This application case is to disclose one The flexible teacher's pointer with laser indicator lamp, including expansion link and laser indicator lamp are planted, the head of expansion link is provided with circular arc end Lid, the laser indicator lamp is arranged on the head of expansion link, and laser indicator lamp is arranged in end cap, and described expansion link afterbody sets The switch of laser indicator lamp is equipped with, expansion link is built with power supply.But laser designation teacher's pointer is used in teaching, generally by Hot spot contacts the content of courses on blackboard or screen, is not that light emitting source body closely clicks on explanation knowledge point.And pass through hot spot The contact content of courses has several drawbacks, and one is that due to handshaking, laser spot is easily rocked, and two is that laser pen hot spot is not enough causes to learn Raw concern Key Points so that student's concern has deviation, and alarming effect is not obvious.Three is dazzling laser, easily causes student Visual fatigue.

China Patent No. ZL201210133228.9, authorized announcement date is on March 5th, 2014, and invention and created name is：Become Light formula teacher's pointer；This application case provides a kind of light changing type pointer, including pointer head, luminous component, grip member, luminous component Front end couples pointer head, and the rear end of luminous component couples through rod member with grip member.This application case makes teacher attend class, exhibition center Guide is that spectators indicate voluntarily select the luminous instruction color of teacher's pointer during explanation according to classroom, venue situation, and can basis The change of education content arbitrarily converts the luminous instruction color of teacher's pointer, moreover it is possible to opened in teacher's pointer according to light conditions selection in classroom Multiple bulbs, make the teacher's pointer rise local lighting, education indicate etc. multiple action.But this application case there is also one than more prominent Shortcoming, i.e. its luminous component is arranged on the front end of rod member, and light emitting control part is arranged on the tail end of rod member, certainly will play connection and make Wire needs guiding through whole rod member, be plugged with rod member it is a plurality of, in the case of very mixed and disorderly wire is possible to again, it is desirable to real Existing teacher's pointer flexible scalable is substantially impossible, and this application case is such；But may be more commonly using the teacher of teacher's pointer Understand, it is actually a very important function that teacher's pointer is scalable, can be more convenient for pointing to the content of courses higher or farther out Do not say, the teacher that gets off only is stand and gives lessons just very tired for class, and teacher can be effectively reduced using retractable pointer Time and efforts spent by being walked up and down to point out knowledge point；So, teacher's pointer disclosed in above-mentioned application case is used simultaneously It is inconvenient.

Above reason objective reality, design possess warning lamp can the Multifunction teaching pointer of reduction be very necessary and urgent Demand.

Utility model content

1. the utility model technical problem to be solved

The utility model due to rocking for hand, holds in view of laser pen more universal in the market sends a light beam very much Easily cause that luminous point is very big to be rocked, it is impossible to luminous point is fixed on very well on the knowledge point of blackboard (screen) explanation；Although and teacher's pointer The top of teacher's pointer can be placed on knowledge point, but the top of teacher's pointer is small, on the one hand with blackboard (screen) apart from remote same Be not easily seen, and another aspect teacher's pointer top does not light, it is impossible to play a part of to emphasize, teaching efficiency is poor；There is provided one Telescopic polychrome color break-up teaching rod is planted, the utility model combines the advantage of laser pen and teacher's pointer, and explanation knowledge point is risen Very crucial warning and effect is emphasized, largely improve teaching efficiency.

2. technical scheme

To reach above-mentioned purpose, the technical scheme that the utility model is provided is：

A kind of telescopic polychrome color break-up teaching rod of the present utility model, including socket, handle box and lighted hats, handle box Socket two ends are respectively arranged at lighted hats, socket is Multi-section retractable structure；Also include elastic force clamp, light emitting diode and thin Film circuit, often saves tube walls and pastes three thin film circuits, and two adjacent sections socket is fixed by elastic force clamp；Set in lighted hats The light emitting diode of multiple different colours is equipped with, the control circuit of light emitting diode is set in described handle box, outside handle box Portion side wall sets switch.

Further, power supply, control circuit integrated module and regulation resistance, the sun of power supply are placed in described handle box Pole is connected with thin film circuit, and the negative electrode of power supply is connected by adjusting resistance with switch, by switch motion connection circuit and adjusts The luminous intensity of light emitting diode.

Further, described lighted hats are transparent plastic hemisphere, and elastic force clamp is passed through between the lighted hats and socket It is fixed；Fixed also by elastic force clamp between described handle box and socket.

Further, described thin film circuit is 3-tier architecture, and intermediate layer uses two-sided copper-foil conducting electricity adhesive tape, Copper Foil glue The both sides of band are coated with the glue-line that insulate；Thin film circuit is layed in the depression of tube walls compacting.

Further, described thin film circuit two ends and corresponding socket side-walls offer fixing hole, fixed Orifice ring is put into hole, orifice ring internal layer is conductive layer, the conductive layer and copper foil tape good contact, and orifice ring outer layer is insulating barrier, should Orifice ring insulate with socket, in described elastic force clamp patchhole ring.

Further, described control circuit integrated module uses NE555 modules.

Further, LED 1 and LED2, the control circuit of polychrome color break-up teaching rod are set in lighted hats Including NE555 modules, resistance R1, R2, R3 and electric capacity C, one end of resistance R1, the 4th terminal of NE555 modules and the 8th terminal, hair The anode of optical diode LED1 connects the positive pole of power supply；Resistance R1, R2 and electric capacity C connect, the other end ground connection of electric capacity C, NE555 7th terminal of module is connected between resistance R1 and resistance R2, and the 2nd terminal of NE555 modules and the 6th terminal are then with resistance R2's The other end is connected；3rd terminal of NE555 modules is connected between LED 1 and LED2 through resistance R3, light emitting diode LED1 and LED2 connects；The negative electrode of LED 2, the 1st terminal ground of NE555 modules.

Further, described handle box bottom offers screwed hole, turns on the bottom nut coordinated with the screwed hole, Power supply and control circuit integrated module inside detachable handle box；Described handle box outer surfac is cased with handle jacket, the hand Put outside handle and be provided with ripple struction.

Further, described handle jacket is sponges cover.

A kind of telescopic polychrome color break-up of the present utility model is imparted knowledge to students the manufacture method of rod, and its step is：

Step one, in tube walls, equidistantly three depressions of compacting, then apply one layer of insulating cement in the valley, then cut One section of two-sided copper-foil conducting electricity adhesive tape is spread on insulation glue-line, and copper foil tape surface applies one layer of insulating cement again, and thin film circuit has been laid Finish；Fixing hole is opened up at thin film circuit two ends and corresponding socket side-walls, orifice ring is put into fixing hole；

Step 2, worn successively according to the weight relationship of socket, two adjacent sections socket is by by elastic force clamp patchhole ring Middle to realize fixing, the socket of Multi-section retractable makes and finishes；

Step 3, the light emitting diode in lighted hats is installed, and by the socket of lighted hats insertion upper end, it is ensured that hair The elastic force clamp of light cap and the orifice ring good contact of socket；

Step 4, by power supply, control circuit integrated module, regulation resistance be fitted into the inner chamber of handle box so that circuit is good Good contact；By in the socket of handle box insertion lower end, it is ensured that the elastic force clamp of handle box and the orifice ring good contact of socket；Entirely Teaching rod makes and finishes.

3. beneficial effect

The technical scheme provided using the utility model, compared with existing known technology, is had the advantages that：

(1) a kind of telescopic polychrome color break-up teaching rod of the present utility model, is provided with multiple difference face in its lighted hats The light emitting diode of color, the pulse signal of certain frequency is provided by NE555 modules, excites light emitting diode to be dodged with certain frequency It is bright, during classroom instruction, closely clicked on by stroboscopic light sources on Key Points, Key Points not only are played with one carries Wake up and act on, while the fatigue of listening to the teacher to dispelling student, the cohesion student consciousness of listening to the teacher suffers from important effect, so as to improve classroom Teaching efficiency；

(2) a kind of telescopic polychrome color break-up teaching rod of the present utility model, between its two adjacent sections socket, handle box with Fixed by elastic force clamp between socket, between lighted hats and socket, not only can be very convenient according to field research needs Add subtract socket quantity and change teaching rod length, while entirely teaching rod dismounting, assemble it is also very convenient；

(3) a kind of telescopic polychrome color break-up teaching rod of the present utility model, it is thin by pasting in every section tube walls Film circuit, and ensure it is each section socket between thin film circuit good contact, impart knowledge to students rod tail end control circuit and installed in teaching The light emitting diode of rod head end is to be capable of achieving electrical connection by thin film circuit, and on the one hand this kind of design ensure that teaching rod is flexible Flexible, the excellent conductive capability of thin film circuit can also ensure that polychrome color break-up teaching rod reliably working, and relative to conventional teaching Rod, weight of the present utility model will not also increase a lot, take up lighter, will not bring burden to teacher；

(4) a kind of telescopic polychrome color break-up teaching rod of the present utility model, its handle box bottom offers screwed hole, twists The bottom nut coordinated with the screwed hole is opened, power supply and control circuit integrated module inside detachable handle box are easy to polychrome The breakdown maintenance of color break-up teaching rod；

(5) a kind of telescopic polychrome color break-up teaching rod of the present utility model, its handle box outer surfac is cased with sponge handle Overcoat, and handle jacket is provided with ripple struction, be easy to hold and sponge can quick adsorption hand perspiration, the compartment time disassembles Cleaning is convenient to, and user experience is good.

Brief description of the drawings

Fig. 1 is a kind of structural representation of telescopic polychrome color break-up teaching rod of the present utility model；

(a) in Fig. 2 is the structural representation of lighted hats in the utility model, and light emitting diode is placed in lighted hats inner chamber (two diodes are only put in figure), (b) in Fig. 2 is the connection line figure of light emitting diode；

(a) in Fig. 3 is socket expanded view, and (b) in Fig. 3 is socket front elevation, and (c) in Fig. 3 bows for elastic force clamp Depending on schematic diagram；

(a) in Fig. 4 is the electric operation control circuit figure of polychrome color break-up teaching rod in the utility model, and (b) in Fig. 4 is this practicality The integration module schematic diagram of new middle control circuit；

Fig. 5 is handle inner structural representation in the utility model；

Fig. 6 is handle jacket structural representation in the utility model.

Label declaration in schematic diagram：

1st, socket；2nd, handle box；21st, power supply；22nd, circuit integrated module is controlled；23rd, resistance is adjusted；24th, switch；3rd, send out Light cap；4th, elastic force clamp；5th, light emitting diode；6th, thin film circuit；61st, fixing hole；7th, handle jacket.

Specific embodiment

To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

Embodiment 1

With reference to Fig. 1, a kind of telescopic polychrome color break-up teaching rod of the present embodiment is made up of three parts, and Part I is Lighted hats 3 (referring to Fig. 2), lighted hats 3 are transparent plastic hemisphere, and the luminous of multiple hair different colours light can be set in lighted hats 3 Diode 5,2 light emitting diodes 5 are set specific to the present embodiment in lighted hats 3.

Center section is the socket 1 (Fig. 1 center sections only draw 2-section pipe cylinder 1) of Multi-section retractable, in Fig. 3 (a) ~(c), often saves the inwall of socket 1 and pastes three thin film circuits 6, the two ends of thin film circuit 6 and the side-walls of corresponding socket 1 Fixing hole 61 is offered, the end of socket 1 of a upper section is inserted with the elastic clamp 4 in the top of socket 1 of next section, elastic force clamp 4 To fix 2-section pipe cylinder 1 in fixing hole 61, and the circuit of 2-section pipe cylinder 1 is connected by elastic force clamp 4.Often save the three of socket 1 Bar thin film circuit 6 ensures good contact by elastic force clamp 4, it is ensured that polychrome color break-up teaching rod reliably working.And can be according to reality Border teaching needs, and very easily adds and subtracts the quantity of socket 1 and change teaching rod length.

The bottom of lighted hats 3 is fixed with elastic force clamp 4, the insertion top socket 1 of lighted hats 3, fixed lighted hats 3, lighted hats 3 Three thin film circuits 6 connected with three thin film circuits 6 of top socket 1.

What deserves to be explained is, by the agency of in the introduction, it is actually a very important work(that teacher's pointer is scalable Can, but because luminous component and light emitting control part are generally arranged on teaching rod by the existing teaching rod that can much light Two ends (the utility model be also in this way, light emitting diode 5 teaching rod top, control circuit teaching rod end), if Using conventional wire connecting luminous diode and control circuit, it is unpractical to still want to realize that teaching rod can flexibly stretch. Because：On the one hand for the stretching of rod of imparting knowledge to students, wire should be very long；On the other hand, teaching rod shrinks, and wire can not contract naturally It is short.

In order to ensure teaching rod while polychrome color break-up is realized, additionally it is possible to swimmingly stretch, inventor is actual have been thought very Many methods, wherein inventor were want to make specifically deposited copper printed wiring in the inwall of socket 1, but it is quite numb to apply copper printing technology It is tired.The scheme that thin film circuit is made in the inwall of socket 1 is finally inventor contemplated, thin film circuit 6 is made to of the present utility model Can teaching rod swimmingly stretch, and be very necessary and crucial.

Specifically, thin film circuit 6 is designed as 3-tier architecture by the present embodiment, and intermediate layer uses two-sided copper-foil conducting electricity adhesive tape, copper Foil belt has the two-sided conduction also to have single-sided conductive, if using two-sided copper-foil conducting electricity adhesive tape, can increase more light emitting diodes 5.The both sides of copper foil tape are coated with the glue-line that insulate, and must ensure the uppermost one layer of insulation film surface light of copper foil tape It is sliding.When making thin film circuit 6, three depressions are suppressed along the identical spacing in longitudinal direction in the inwall of socket 1 first, then thin film circuit 6 is spread In the depression of the inwall of socket 1 compacting.The described two ends of thin film circuit 6 and the side-walls of corresponding socket 1 offer solid Determine hole 61, orifice ring is put into fixing hole 61, orifice ring internal layer is conductive layer, the conductive layer and copper foil tape good contact, outside orifice ring Layer is insulating barrier, and the orifice ring insulate with socket 1, in the described insertion orifice ring of elastic force clamp 4.

The main benefit having in terms of 4 of the present embodiment design thin film circuit 6：1) thin film circuit 6 is layed in wall pressure in socket 1 In the depression of system, and ensure that the uppermost one layer of insulation film surface of copper foil tape is smooth, so ensure that more piece socket 1 is suitable Freely stretch, and unlikely the generation with thin film circuit 6 of outer wall of adjacent socket 1 is rubbed, and causes the outer wall of socket 1 to gall insulation glue-line, It is conductive with copper foil tape, produce electric leakage risk；2) copper foil tape has excellent electric conductivity, ensure that polychrome color break-up is imparted knowledge to students Rod stable performance, long service life；3) compared to many and mixed and disorderly wires are filled in inside socket 1, the present embodiment can't mistake The weight for increasing teaching rods, take up lighter more, will not bring burden to teacher；4) single-unit socket 1 be all individually lay it is thin Film circuit 6, then fixed two adjacent sections socket 1 by partially electronically conductive elastic force clamp 4, dismounting, assembling or the increasing of rod of imparting knowledge to students Subtract the quantity of socket 1 all without being affected, it is flexible and convenient to use.

Part III is power supply 21, control circuit integrated module 22 to be placed in handle box 2 (referring to Fig. 5), handle box 2, is adjusted Economize on electricity resistance 23, power supply 21 uses dry cell or button cell, control circuit integrated module 22 to use NE555 modules.Handle box 2 is pushed up End offers hole, and fixed elastic force clamp 4, the insert end socket 1 of handle box 2 to be connected with socket 1, and with end socket 1 Electric line is connected.Hole is put in the side appropriate location of handle box 2, installs switch 24.Connection circuit is acted by switch 24 and hair is adjusted The luminous intensity of optical diode 5.

Referring to Fig. 4, the light emitting diode set in lighted hats 3 in the present embodiment is LED1 and LED2, polychrome color break-up teaching The control circuit of rod includes NE555 modules, one end of resistance R1, R2, R3 and electric capacity C, resistance R1, the 4th terminal of NE555 modules With the positive pole that the anode of the 8th terminal, LED 1 connects power supply 21；Resistance R1, R2 and electric capacity C connect, and electric capacity C's is another One end is grounded, and the 7th terminal of NE555 modules is connected between resistance R1 and resistance R2, the 2nd terminal of NE555 modules and the 6th terminal Then the other end with resistance R2 is connected；3rd terminal of NE555 modules through resistance R3 be connected to LED 1 and LED2 it Between, LED 1 and LED2 connect；The negative electrode of LED 2, the 1st terminal ground of NE555 modules.NE555 Module provides the pulse signal of certain frequency, excites light emitting diode to be flashed with certain frequency, during classroom instruction, in all critical learning Closely clicked on by stroboscopic light sources on point, not only Key Points are played with a reminding effect, while to dispelling student's Listen to the teacher fatigue, the cohesion student consciousness of listening to the teacher suffers from important effect, so as to improve classroom teaching effect.

The described bottom of handle box 2 offers screwed hole, turns on the bottom nut coordinated with the screwed hole, detachable handle Power supply 21 and control circuit integrated module 22 inside box 2, are easy to the breakdown maintenance of polychrome color break-up teaching rod.The appearance of handle box 2 Surface cover has handle jacket 7, and referring to Fig. 6, the handle jacket 7 is provided with ripple struction and handle jacket 7 uses sponges cover, is easy to hand Hold and sponge can quick adsorption hand perspiration, the compartment time disassembles cleaning and is convenient to, and user experience is good.

A kind of telescopic polychrome color break-up of the present embodiment is imparted knowledge to students the manufacture method of rod, and its step is：

Step one, in the inwall of socket 1, equidistantly three depressions of compacting, then apply one layer of insulating cement in the valley, then cut One section of two-sided copper-foil conducting electricity adhesive tape is spread on insulation glue-line, and copper foil tape surface applies one layer of insulating cement again, and thin film circuit 6 has been laid Finish；Fixing hole 61 is opened up at the two ends of thin film circuit 6 and the side-walls of corresponding socket 1, orifice ring is put into fixing hole 61；

Step 2, worn successively according to the weight relationship of socket 1, two adjacent sections socket 1 is by by the patchhole of elastic force clamp 4 Realize fixing in ring, the socket 1 of Multi-section retractable makes and finishes；

Step 3, the light emitting diode 5 in lighted hats 3 is installed, and lighted hats 3 insert the socket 1 of upper end, protected Demonstrate,prove the elastic force clamp 4 of lighted hats 3 and the orifice ring good contact of socket 1；

Step 4, by power supply 21, control circuit integrated module 22, regulation resistance 23 be fitted into the inner chamber of handle box 2 so that Circuit good contact；During handle box 2 to be inserted the socket 1 of lower end, it is ensured that the elastic force clamp 4 of handle box 2 is good with the orifice ring of socket 1 Good contact；Whole teaching rod makes and finishes.

Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing Shown in be also one of implementation method of the present utility model, actual structure is not limited thereto.So, if this area Those of ordinary skill enlightened by it, do not departing from the case that the utility model creates objective, designed without creative The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.

Claims (9)

1. a kind of telescopic polychrome color break-up teaching rod, including socket (1), handle box (2) and lighted hats (3), handle box (2) and Lighted hats (3) are respectively arranged at socket (1) two ends, and socket (1) is Multi-section retractable structure；It is characterized in that：Also include elastic force Clamp (4), light emitting diode (5) and thin film circuit (6), often save socket (1) inwall and paste three thin film circuits (6), adjacent 2-section pipe cylinder (1) is fixed by elastic force clamp (4)；The light emitting diode (5) of multiple different colours is provided with lighted hats (3), The control circuit of light emitting diode (5) is set in described handle box (2), and handle box (2) exterior side wall sets switch (24).

2. a kind of telescopic polychrome color break-up teaching rod according to claim 1, it is characterised in that：Described handle box (2) power supply (21), control circuit integrated module (22) and regulation resistance (23), the anode and thin film circuit of power supply (21) are placed in (6) it is connected, the negative electrode of power supply (21) is connected by adjusting resistance (23) with switch (24), connection circuit is acted by switching (24) And adjust the luminous intensity of light emitting diode (5).

3. a kind of telescopic polychrome color break-up teaching rod according to claim 2, it is characterised in that：Described lighted hats (3) it is transparent plastic hemisphere, it is fixed by elastic force clamp (4) between the lighted hats (3) and socket (1)；Described handle box (2) It is fixed also by elastic force clamp (4) between socket (1).

4. according to any one of claims 1 to 3 a kind of telescopic polychrome color break-up teaching rod, it is characterised in that：It is described Thin film circuit (6) be 3-tier architecture, intermediate layer uses two-sided copper-foil conducting electricity adhesive tape, and the both sides of copper foil tape are coated with insulating cement Layer；Thin film circuit (6) is layed in the depression of socket (1) inwall compacting.

5. a kind of telescopic polychrome color break-up teaching rod according to claim 4, it is characterised in that：Described thin film circuit (6) two ends and corresponding socket (1) side-walls offer fixing hole (61), and fixing hole is put into orifice ring in (61), in orifice ring Layer is conductive layer, the conductive layer and copper foil tape good contact, and orifice ring outer layer is insulating barrier, and the orifice ring insulate with socket (1), institute In elastic force clamp (4) the insertion orifice ring stated.

6. a kind of telescopic polychrome color break-up teaching rod according to claim 5, it is characterised in that：Described control circuit Integration module (22) uses NE555 modules.

7. a kind of telescopic polychrome color break-up teaching rod according to claim 6, it is characterised in that：Set in lighted hats (3) LED 1 and LED2 are put, the control circuit of polychrome color break-up teaching rod includes NE555 modules, resistance R1, R2, R3 and electricity Hold C, one end of resistance R1, the 4th terminal of NE555 modules and the 8th terminal, the anode of LED 1 connect power supply (21) Positive pole；Resistance R1, R2 and electric capacity C connect, the other end ground connection of electric capacity C, the 7th terminal of NE555 modules be connected to resistance R1 and Between resistance R2, the other end of the 2nd terminal and the 6th terminal then with resistance R2 of NE555 modules is connected；The 3rd of NE555 modules Terminal is connected between LED 1 and LED2 through resistance R3, and LED 1 and LED2 connect；Light emitting diode The negative electrode of LED2, the 1st terminal ground of NE555 modules.

8. a kind of telescopic polychrome color break-up teaching rod according to claim 5, it is characterised in that：Described handle box (2) bottom offers screwed hole, turns on the bottom nut coordinated with the screwed hole, the internal power supply of detachable handle box (2) (21) and control circuit integrated module (22)；Described handle box (2) outer surface is cased with handle jacket (7), the handle jacket (7) it is provided with ripple struction.

9. a kind of telescopic polychrome color break-up teaching rod according to claim 8, it is characterised in that：Described handle jacket (7) it is sponges cover.