CN207587236U - The experiment teaching aid of relationship between a kind of explanation acceleration, power and quality - Google Patents

Abstract

The utility model is related to a kind of experiment teaching aids of relationship between explanation acceleration, power and quality, belong to teaching aid technical field；The both ends of the groove are connected with telescopic outrigger；The telescopic outrigger movable inlaying is in a groove；The paper tape roller is fixed on one end of plank；The inside of the paper tape roller is equipped with dotted timer；One end of the paper tape of winding passes through dotted timer and the bar shaped perforation of wooden unit one end to cooperate on the paper tape roller；The both sides of the wooden unit are equipped with plugboard；The interlude of the U-tube cooperates with plugboard；One end of the U-tube is equipped with wheel；The pulley is fixedly connected centrally through connecting rod with the end of plank；One end of the cord is connect with the hook of wooden unit end；One experiment teaching aid can extend many topic types and experiment, can be imparted knowledge to students with assisted teacher, and paper tape roller is designed with conducive to repetition experimental implementation, and the paper tape printed is used directly for analysis of experimental data, and the topic type of materialization is conducive to classroom explanation.

Description

The experiment teaching aid of relationship between a kind of explanation acceleration, power and quality

Technical field

The utility model is related to a kind of experiment teaching aids of relationship between explanation acceleration, power and quality, belong to teaching aid technology Field.

Background technology

There is the teaching much tested in the teaching of physics, general experiment is provided to proof theory knowledge or calculates knot Fruit.

Between acceleration, power and quality in this knowledge point of relationship, there are many formula, be exactly to use in some topics Existing knowledge point, that is, existing formula carry out result of calculation, but result is but difficult to be completed by identical experiment, institute It is typically also to apply mechanically formula during with the classroom subject of a lecture, many students are very interested to this process tested in fact, apply mechanically public affairs The explanation of formula can't cause their attention.

Utility model content

The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of simple in structure, design conjunction is provided The experiment teaching aid of relationship between reason, explanation acceleration easy to use, power and quality.

To achieve the above object, the technical solution adopted in the utility model is：It includes plank, groove, telescopic outrigger, beats It is point timer, paper tape roller, wooden unit, displacement sensor, display screen, microcontroller, plugboard, U-tube, wheel, hook, pulley, thin Rope, counterweight bucket, bar shaped perforation, paper tape；The bottom of the plank is equipped with groove；The both ends of the groove are connected with telescopic outrigger； The telescopic outrigger movable inlaying is in a groove；The paper tape roller is fixed on one end of plank；The inside of the paper tape roller is equipped with Dotted timer；One end of the paper tape of winding passes through dotted timer and the bar shaped perforation of wooden unit one end mutual on the paper tape roller Cooperation；The both sides of the wooden unit are equipped with plugboard；The interlude of the U-tube cooperates with plugboard；The one of the U-tube End is equipped with wheel；The pulley is fixedly connected centrally through connecting rod with the end of plank；One end of the cord and wooden unit The hook connection of end；The other end of cord passes through the mating groove of pulley side to be connect with counterweight bucket；Position is equipped in the wooden unit Displacement sensor；Institute's displacement sensors are connect with the microcontroller inside wooden unit；The microcontroller and the display screen on wooden unit surface connect It connects.

Preferably, after the paper tape passes through two bar shaped perforation, the pull-out section and paper tape of paper tape are self by staple It is fixed.

Preferably, the microcontroller uses fpga chip, the acquisition, processing and transmission of data can be completed.

Preferably, the pulley is flexibly connected with plank end；Between the connecting rod coordinated pulley and plank Angle can be adjusted, changes the movement locus of cord.

The utility model, can be by specifically testing come verification result by theoretical knowledge point experimentization, can more intuitively The relationship understood between acceleration, power and quality, the pass between can also understanding speed by dotted timer and get ready System, an experiment teaching aid can extend many topic types and experiment, can be imparted knowledge to students with assisted teacher, and paper tape roller is designed with to repeat Experimental implementation, the paper tape printed are used directly for analysis of experimental data, and the topic type of materialization is conducive to classroom explanation；It Structure design is simple, easy to operate, and flexibility is good, can verify a variety of physical relations, and an experiment teaching aid is mostly used, can improve Classroom teaching efficiency, the process of verification is a process started, and students grouping can be allowed to carry out, and improves students study object The enthusiasm of reason, the utility model have the advantages that simple in structure, setting is reasonable, low manufacture cost.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is the structure diagram of the utility model；

Fig. 2 is the schematic diagram that wooden unit side wheel is packed up in the utility model；

Fig. 3 is the schematic diagram that wooden unit side wall wheel is put down in the utility model；

Fig. 4 is the schematic diagram that bar shaped is perforated in the utility model；

Reference sign：

Plank 1, groove 2, telescopic outrigger 3, dotted timer 4, paper tape roller 5, wooden unit 6, displacement sensor 7, display screen 8, Microcontroller 9, plugboard 10, U-tube 11, wheel 12, hook 13, pulley 14, cord 15, counterweight bucket 16, bar shaped perforation 17, paper tape 18。

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.

Referring to such as Fig. 1 -- shown in Fig. 4, present embodiment includes plank 1, groove 2, telescopic outrigger 3, dotted timer 4th, paper tape roller 5, wooden unit 6, displacement sensor 7, display screen 8, microcontroller 9, plugboard 10, U-tube 11, wheel 12, hook 13, cunning Wheel 14, cord 15, counterweight bucket 16, bar shaped perforation 17, paper tape 18；The bottom of the plank 1 is equipped with groove 2；The two of the groove 2 End is connected with telescopic outrigger 3；The telescopic outrigger 3 is movably embedded in groove 2；The paper tape roller 5 is fixed on the one of plank 1 End；The inside of the paper tape roller 5 is equipped with dotted timer 4；One end of the paper tape 18 of winding passes through and gets meter ready on the paper tape roller 5 When device and 6 one end of wooden unit bar shaped perforation 17 cooperate；The both sides of the wooden unit 6 are equipped with plugboard 10；The U-tube 11 Interlude cooperates with plugboard 10；One end of the U-tube 11 is equipped with wheel 12；The pulley 14 centrally through connection Bar is fixedly connected with the end of plank 1；One end of the cord 15 is connect with the hook 13 of 6 end of wooden unit；Cord 15 it is another The mating groove across 14 side of pulley is held to be connect with counterweight bucket 16；Displacement sensor 7 is equipped in the wooden unit 6；The displacement passes Sensor 7 is connect with the microcontroller 9 inside wooden unit 6；The microcontroller 9 is connect with the display screen 8 on 6 surface of wooden unit.

Wherein, after the paper tape 18 passes through two bar shapeds perforation 17, the pull-out section and paper tape of paper tape 18 are self by stapler Nail is fixed；The microcontroller 9 uses fpga chip, can complete the acquisition, processing and transmission of data；The pulley 14 and plank 1 end is flexibly connected；It is described to adjust angle between the connecting rod of the cooperation of pulley 14 and plank 1, change the movement of cord Track.The wooden unit 6 can choose whether that with wheel, the effect of frictional force can also be proved with this as needed.

Present embodiment, can be by specifically testing come verification result, Ke Yigeng by theoretical knowledge point experimentization The relationship between acceleration, power and quality is got information about, can also speed be understood by dotted timer 4（At the uniform velocity with change Speed）With get ready between relationship, an experiment teaching aid can extend many topic types with experiment, can be imparted knowledge to students with assisted teacher, paper tape Roller is designed with conducive to repetition experimental implementation, and the paper tape printed is used directly for analysis of experimental data, the topic of materialization Type is conducive to classroom explanation.

The experiment teaching aid of relationship, structure are set between a kind of explanation acceleration, power and quality described in present embodiment Meter is simple, and easy to operate, flexibility is good, can verify a variety of physical relations, and an experiment teaching aid is mostly used, and can improve classroom religion Efficiency is learned, the process of verification is a process started, and students grouping can be allowed to carry out, improve the product of students learning physics Polarity.

The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model Spirit and scope should all cover in the right of the utility model.

Claims (4)

1. a kind of experiment teaching aid of relationship between explanation acceleration, power and quality, it is characterised in that：It includes plank, groove, stretches Contracting supporting leg, dotted timer, paper tape roller, wooden unit, displacement sensor, display screen, microcontroller, plugboard, U-tube, wheel, extension Hook, pulley, cord, counterweight bucket, bar shaped perforation, paper tape；The bottom of the plank is equipped with groove；The both ends of the groove are connected with Telescopic outrigger；The telescopic outrigger movable inlaying is in a groove；The paper tape roller is fixed on one end of plank；The paper tape roller Inside is equipped with dotted timer；One end of the paper tape of winding passes through dotted timer and the bar shaped of wooden unit one end on the paper tape roller Perforation cooperates；The both sides of the wooden unit are equipped with plugboard；The interlude of the U-tube cooperates with plugboard；The U One end of type pipe is equipped with wheel；The pulley is fixedly connected centrally through connecting rod with the end of plank；The one of the cord End is connect with the hook of wooden unit end；The other end of cord passes through the mating groove of pulley side to be connect with counterweight bucket；The wooden unit It is interior to be equipped with displacement sensor；Institute's displacement sensors are connect with the microcontroller inside wooden unit；The microcontroller and wooden unit surface Display screen connects.

2. the experiment teaching aid of relationship, feature exist between a kind of explanation acceleration according to claim 1, power and quality In：After the paper tape passes through two bar shaped perforation, the pull-out section of paper tape is fixed with paper tape self by staple.

3. the experiment teaching aid of relationship, feature exist between a kind of explanation acceleration according to claim 1, power and quality In：The microcontroller uses fpga chip.

4. the experiment teaching aid of relationship, feature exist between a kind of explanation acceleration according to claim 1, power and quality In：The pulley is flexibly connected with plank end.