CN207165063U - A kind of synthesis demonstration device of power - Google Patents

Abstract

The utility model discloses a kind of synthesis demonstration device of power, it is characterised in that including：Base, column, plank, fixed pulley, nail, rubber bar, hook code, standing screw, deep-slotted chip breaker and cord；Wherein, the two root posts are vertically arranged on base, described；Has vertical chute in the inner side of column, the plank is placed between the vertical chute on the inside of two root posts, two deep-slotted chip breaker is located at the middle and upper part of plank, two fixed pulley is fixed on two deep-slotted chip breakers by standing screw and nut respectively, the rubber bar is fixed on plank by nail, the hook code is connected by cord with rubber bar, and cord is bypassed fixed pulley, and the base is " work " shaped base.The synthesis demonstration device of the power has the advantages of selection is easy, and making is simple, and illustrative is good.

Description

A kind of synthesis demonstration device of power

Technical field

It the utility model is related to physics teaching demonstration teaching aid technical field, and in particular to a kind of synthesis demonstration device of power.

Background technology

" synthesis of power " and " parallelogram rule " are the starting points of vector teaching in a high physics, and vector and its computing are The difficult point and emphasis of senior middle school physics teaching, this difficult point of Gonna breakthrough, it is necessary to picked up from the teaching of " synthesis of power ".And in " power Synthesis " in teaching process, teacher often directly gives its operation law --- parallelogram rule, then verified, Student is impressionable, passive to receive.It is the lecture experiment equipment for mentioning the synthesis that can verify that power in textbook.

The content of the invention

The purpose of this utility model is to be directed to deficiency of the prior art, there is provided a kind of synthesis demonstration device of power.The power Synthesis demonstration device can have selection easy, make simple, the advantages of illustrative is good.

The purpose of this utility model is realized by following technological means：A kind of synthesis demonstration device of power, its feature It is, including：Base, column, plank, fixed pulley, nail, rubber bar, hook code, standing screw, deep-slotted chip breaker and cord；Wherein, The two root posts are vertically arranged on base, described；The inner side of column has vertical chute, and the plank is placed in two root posts Between the vertical chute of inner side, two deep-slotted chip breaker is located at the middle and upper part of plank, and two fixed pulley passes through standing screw respectively It is fixed on nut on two deep-slotted chip breakers, the rubber bar is fixed on plank by nail, and the hook code passes through cord and rubber Bar is connected, and cord is bypassed fixed pulley.

Preferably, the base is " work " shaped base.

Compared with prior art, the utility model has advantages below：(1) selection is easy, makes simple.Pulley, rubber Bar, hook code, nail etc. are all the common equipment in laboratory, and plank, support and column can make of timber；(2) operation letter Just, it is seen that degree is high.Demonstration board can be mounted on support, be placed on lectern and demonstrated, can also be hung over using standing screw on blackboard. During experiment, fixed pulley and increase and decrease hook code can be arbitrarily moved as needed.

Brief description of the drawings

The structural representation of the synthesis demonstration device of Fig. 1 power.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

Structural representation of the present utility model as shown in Figure 1, a kind of synthesis demonstration device of power, it is characterised in that Including：Base 1, column 2, plank 3, fixed pulley 4, nail 5, rubber bar 6, hook code 7, standing screw 8, deep-slotted chip breaker 9 and cord 10； Wherein, the two root posts 2 are vertically arranged on base 1, described；The inner side of column 2 has vertical chute, and the plank 3 is put Between the vertical chute of the inner side of two root posts 2, two deep-slotted chip breaker 9 is located at the middle and upper part of plank 3, and two fixed pulley 4 divides It is not fixed on by standing screw and nut on two deep-slotted chip breakers 9, the rubber bar 6 is fixed on plank 3 by nail 5, described Hook code 7 is connected by cord 10 with rubber bar 6, and cord 10 is bypassed fixed pulley 4, and the base 1 is " work " shaped base.

During operation, blank sheet of paper is fixed on plank 3 with drawing pin, plank 3 is inserted in the vertical slots of column 2 or utilized fixation Screw rod hangs over plank the top edge of blackboard.One end of cord 10 with rubber bar 6 is fixed on the nail of plank, will be fixed Pulley 4 is inserted in the somewhere of deep-slotted chip breaker 9 and fixation, then cord 10 is bypassed into fixed pulley 4, increases hook code respectively and can verify that parallel four side Shape rule.

In a word, the utility model provides a kind of synthesis demonstration device of power.It is described above, only of the present utility model one Part embodiment, the scope of protection of the utility model are not limited thereto, any technology people for being familiar with the art Member is in the technical scope that the utility model discloses, and the change or replacement that can readily occur in should all be covered of the present utility model Within protection domain.

Claims (2)

1. A kind of 1. synthesis demonstration device of power, it is characterised in that including：Base (1), column (2), plank (3), fixed pulley (4), Nail (5), rubber bar (6), hook code (7), standing screw (8), deep-slotted chip breaker (9) and cord (10)；Wherein, two columns (2) it is vertically arranged on base (1), the inner side of the column (2) has vertical chute, and the plank (3) is placed in two root posts (2) between the vertical chute on the inside of, two deep-slotted chip breakers (9) are located at the middle and upper part of plank (3), and two fixed pulleys (4) are respectively It is fixed on by standing screw and nut on two deep-slotted chip breakers (9), the rubber bar (6) is fixed on plank (3) by nail (5) On, the hook code (7) is connected by cord (10) with rubber bar (6), and cord (10) is bypassed fixed pulley (4).
2. 2. the synthesis demonstration device of power as claimed in claim 1, it is characterised in that：The base (1) is " work " shaped base.