CN209879914U

CN209879914U - Experiment board for force resolution

Info

Publication number: CN209879914U
Application number: CN201920112300.7U
Authority: CN
Inventors: 靳舜钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2019-12-31
Anticipated expiration: 2029-01-23

Abstract

The utility model discloses an experimental board is used in decomposition of power, including experiment plate body, first spring, elastic line, zinc-manganese battery, mini aspiration pump and sucking disc, the experiment plate body openly is close to the vertical welding of position department on right side and has the baffle, and the welding of intermediate position department of baffle left side wall has the scale, the one end and the experiment plate body left side wall welded connection of baffle are kept away from to the scale, the cover is equipped with the sliding block on the scale, the one end and the scale welded connection of first spring, the first spring other end connects with the left side wall welded connection of sliding block. The utility model discloses a under the sliding action of scale and sliding block, the use of cooperation first spring, second spring and third spring carries out the decomposition and the synthetic teaching demonstration of first step power, uses through the cooperation of dial plate, dynamometer, elastic line and weight, carries out the decomposition and the synthetic teaching demonstration of second step power, through dual teaching demonstration, can make classmates more comprehensive analysis power decomposition and synthesis directly perceivedly.

Description

Experiment board for force resolution

Technical Field

The utility model relates to a physical teaching apparatus technical field specifically is an experimental board is used in decomposition of force.

Background

The force decomposition is an important basic theoretical knowledge point in high school physics teaching, and when a general teacher explains the decomposition and synthesis of force for students in a classroom, the general teacher only explains through teaching materials, some students cannot clarify the relation among various forces, and the teacher does not perform corresponding demonstration experiments to guide the students to establish the concept of force decomposition and synthesis.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an experimental board is used in decomposition of force to only explain through the teaching material in solving above-mentioned background art, not have corresponding teaching aid to demonstrate the problem of experiment.

In order to achieve the above purpose, the utility model provides a following technical scheme: an experimental plate for force decomposition comprises an experimental plate body, a first spring, an elastic wire, a zinc-manganese battery, a mini air suction pump and a sucker, wherein a partition plate is vertically welded at a position close to the right side of the front of the experimental plate body, a scale is welded at the middle position of the left side wall of the partition plate, one end of the scale, far away from the partition plate, is welded with the left side wall of the experimental plate body, a sliding block is sleeved on the scale, one end of the first spring is welded with the scale, the other end of the first spring is welded with the left side wall of the sliding block, a second spring and a third spring are respectively welded on the right side wall of the sliding block from top to bottom and are positioned at the upper side and the lower side of the scale, an operating button is arranged at the position of the front of the experimental plate body below the scale, and a convex block is welded on the front of the experimental plate body on the right side of the partition plate body, and the welding has the dial plate on the lug, the both sides of dial plate are all overlapped and are equipped with the pulley clamp, the top movable mounting of dial plate has the dynamometer, the intermediate position department of dial plate installs the power point of converging, and converges the power point and the dial plate is concentric, the one end and the dynamometer fixed connection of elastic line, the other end of elastic line twines in proper order and has the power point of converging and the pulley clamp, the bottom movable mounting of elastic line has the weight, the experiment plate body back is close to the position department recess of lower extreme, and the inside of recess is embedded to have the zinc-manganese cell, mini aspiration pump is installed to the position department on zinc-manganese cell right side, the exhaust tube is installed to the output of mini aspiration pump, the sucking disc is all installed to four face angle departments in the back of experiment plate body, the one end that mini aspiration tube kept away from the aspiration pump runs through the sucking disc, and the exhaust tube is linked together with the sucking disc.

Preferably, all weld the fixture block on the experiment plate body of both sides about the scale, and the fixture block sets up to five groups, and its fixture block sets up the upper and lower both sides at the scale respectively, the sliding block one end welding is kept away from to the second spring has the rand of mutually supporting with the fixture block.

Preferably, the outer surface of scale and dial plate all is provided with the scale mark, the bottom surface of experiment plate body is provided with the recess, and has placed the weight in the recess.

Preferably, the lengths of the first spring, the second spring and the third spring are consistent, three groups of elastic lines are arranged, and the lengths of the elastic lines are consistent.

Preferably, the pulley clamp is provided with two sets, and the dial plate surface is provided with a circle of pulleys mutually matched with the pulley clamp.

Preferably, the output end of the zinc-manganese battery is electrically connected with the input end of the mini air pump through a wire and the operation button, and the output end of the operation button is electrically connected with the input end of the mini air pump through a wire.

Compared with the prior art, the beneficial effects of the utility model are that: this experimental plate is used in decomposition of force, design through the mini aspiration pump of experimental plate body cooperation and sucking disc, make the experimental plate body fix on the blackboard, demonstration when having made things convenient for teacher's teaching, and under the sliding action through scale and sliding block, cooperate first spring, the use of second spring and third spring, carry out the decomposition and the synthesis teaching demonstration of first step force, meanwhile, through the dial plate, the dynamometer, the cooperation of elastic wire and weight is used, carry out the decomposition of second step force and the synthesis teaching demonstration, demonstration through dual teaching, can make classmates analyze the decomposition and the synthesis of force more comprehensively directly perceivedly, improve learning efficiency, arouse student's interest in learning, and the design is light, dexterity, safety, convenient operation, can be accurate and direct decomposition and the synthesis process of show force, low in manufacturing cost, easily popularize and apply.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic sectional view of the structure of the present invention from the back;

fig. 3 is a schematic view of the structure of the present invention from the back.

In the figure: 1. an experiment plate body; 2. an operation button; 3. a scale; 4. a clamping block; 5. a first spring; 6. a slider; 7. a second spring; 8. a third spring; 9. a dial plate; 10. a load cell; 11. a force convergence point; 12. elastic threads; 13. a pulley clamp; 14. a weight; 15. a zinc-manganese battery; 16. a mini air pump; 17. an exhaust pipe; 18. a suction cup; 19. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment:

an experimental plate for force decomposition comprises an experimental plate body 1, a first spring 5, an elastic wire 12, a zinc-manganese battery 15, a mini air pump 16 and a sucker 18, wherein a partition plate 19 is vertically welded at a position close to the right side of the front surface of the experimental plate body 1, a scale 3 is welded at the middle position of the left side wall of the partition plate 19, one end of the scale 3, which is far away from the partition plate 19, is welded with the left side wall of the experimental plate body 1, a sliding block 6 is sleeved on the scale 3, one end of the first spring 5 is welded with the scale 3, the other end of the first spring 5 is welded with the left side wall of the sliding block 6, a second spring 7 and a third spring 8 are respectively welded on the right side wall of the sliding block 6 from top to bottom, and the second spring 7 and the third spring 8 are positioned on the upper side and the lower side of the scale 3, first spring 5, the length size of second spring 7 and third spring 8 is unanimous, elastic line 12 is provided with three groups, and elastic line 12's length size is unanimous, all weld on the experiment plate body 1 of scale 3 upper and lower both sides has fixture block 4, and fixture block 4 sets up to five groups, its fixture block 4 sets up the upper and lower both sides at scale 3 respectively, second spring 7 keeps away from 6 one end welding of sliding block and has the rand of mutually supporting with fixture block 4, under the sliding action through sliding block 6 and scale 3, the teacher fixes the rand of second spring 7 right-hand member on fixture block 4 at first, fix the rand of third spring 8 right-hand member on fixture block 4 again, afterwards, second spring 7 and third spring 8 are fixed in proper order on different fixture blocks 4 in proper order, and will demonstrate the operation to the classmate, point out according to hooke's law of elasticity: when the spring is elastically deformed, the elasticity of the spring is in direct proportion to the elongation (or compression) of the spring, so that the force is measured, and the first step of force decomposition and synthesis teaching demonstration is performed.

The experiment plate body 1 of institute scale 3 below openly the position department is provided with operating button 2, the welding has the lug on the experiment plate body 1 on baffle 19 right side openly, and the welding has dial plate 9 on the lug, dial plate 9's both sides all overlap and are equipped with pulley clamp 13, dial plate 9's top movable mounting has dynamometer 10, dial plate 9's intermediate position department installs confluent point 11, and confluent point 11 is concentric with dial plate 9, the one end and dynamometer 10 fixed connection of elastic line 12, elastic line 12's the other end twines in proper order has confluent point 11 and pulley clamp 13, elastic line 12's bottom movable mounting has weight 14, the surface of scale 3 and dial plate 9 all is provided with the scale mark, the bottom surface of experiment plate body 1 is provided with the recess, and placed weight 14 in the recess, design through the scale mark, the precision of whole device test has been strengthened, pulley clamp 13 is provided with two sets ofly, dial plate 9 surface is provided with the pulley of round and pulley clamp 13 mutually supporting, the teacher adjusts the angle of pulley clamp 13 on 9, and add weight 14, connect dynamometer 10 through confluent point 11 top, adjust the position and angle of dial plate 11, make the confluent point 11 and the demonstration under the concentric state of the common effect of demonstration, thereby carry out the two-step of the composition of the concentric angle with the dynamometer 9, thereby the demonstration, thereby the concentric value of the concentric line, the concentric value of the demonstration, thereby.

Position department recess that the 1 back of experiment plate body is close to the lower extreme, and the inside of recess is embedded to have zinc-manganese cell 15, mini aspiration pump 16 is installed to the position department on zinc-manganese cell 15 right side, exhaust tube 17 is installed to mini aspiration pump 16's output, sucking disc 18 is all installed to four face angle departments in the back of experiment plate body 1, the one end that mini aspiration pump 16 was kept away from to exhaust tube 17 runs through sucking disc 18, and exhaust tube 17 is linked together with sucking disc 18, zinc-manganese cell 15's output passes through the wire and is connected for the electricity in operating button 2 and mini aspiration pump 16's input respectively, operating button 2's output passes through the wire and is connected for the electricity with mini aspiration pump 16's input, this mini aspiration pump 16's model is PCF5015N.

The working principle is as follows: when the device is used, the zinc-manganese battery 15 supplies power to the whole device, and a teacher can start or stop the whole device by operating the button 2.

When preparing the teaching, the teacher places experiment plate body 1 suitable position on the blackboard for on the face of experiment plate body 1 back sucking disc 18 tightly attached blackboard, open mini aspiration pump 16 work through operating button 2, mini aspiration pump 16 work is taken out the inside air of sucking disc 18, makes the interior negative pressure that produces of sucking disc 18, thereby makes sucking disc 18 tightly hold the face, can fix experiment plate body 1.

When the teacher began to teach the demonstration, under the sliding action through sliding block 6 and scale 3, the teacher was fixed the rand of 7 right-hand members of second spring on fixture block 4 at first, fixes the rand of 8 right-hand members of third spring on fixture block 4 again, afterwards, second spring 7 and third spring 8 are fixed in proper order on different fixture blocks 4 to show the operation to classmates, point out according to hooke's law of elasticity: the spring is when taking place elastic deformation, the elasticity of spring and the elongation (or the decrement) of spring are directly proportional, thereby carry out the measurement of power, carry out the decomposition of first step power and synthetic teaching demonstration, immediately, the teacher adjusts the angle of pulley clamp 13 on dial plate 9, and add weight 14, connect dynamometer 10 through the 11 tops of confluence power point, adjust dynamometer 10's position and angle, make confluence power point 11 be in unsettled state under elasticity line 12 and dynamometer 10 combined action, and confluence power point 11 is concentric with dial plate 9, it follows the angle to calculate the numerical value, thereby carry out the decomposition of second step power and synthetic teaching demonstration, can accomplish the teaching demonstration of the decomposition of power.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an experimental board for resolution of force, includes experiment plate body (1), first spring (5), elastic line (12), zinc manganese cell (15), mini aspiration pump (16) and sucking disc (18), its characterized in that: the experiment plate body (1) is vertically welded with a partition plate (19) at a position close to the right side in front, a scale (3) is welded at a middle position of a left side wall of the partition plate (19), one end, far away from the partition plate (19), of the scale (3) is welded with the left side wall of the experiment plate body (1), a sliding block (6) is sleeved on the scale (3), one end of a first spring (5) is welded with the scale (3), the other end of the first spring (5) is welded with the left side wall of the sliding block (6), a second spring (7) and a third spring (8) are respectively welded on the right side wall of the sliding block (6) from top to bottom, the second spring (7) and the third spring (8) are positioned on the upper side and the lower side of the scale (3), an operation button (2) is arranged at a front position of the experiment plate body (1) below the scale (3), a convex block is welded on the experiment plate body (1) at the right side of the partition plate (19) in front, a convex block, a dial plate (9) is welded with a dial plate (9), pulley clamp (13) is sleeved on two sides of the dial plate (9), a movable position of the dial plate (9), a dynamometer (10) is installed at the top of the dial plate (9), a fixed point (11), a force point (10) is connected with a dynamometer (11), and a force point (11) and a force line (11) is installed at a fixed point (11), the other end of elastic line (12) twines in proper order and has convergent force point (11) and pulley holder (13), the bottom movable mounting of elastic line (12) has weight (14), the experiment plate body (1) back is close to the position department recess of lower extreme, and the inside of recess is embedded to have zinc-manganese cell (15), position department on zinc-manganese cell (15) right side installs mini aspiration pump (16), aspiration tube (17) are installed to the output of mini aspiration pump (16), sucking disc (18) are all installed to four face angle departments in the back of experiment plate body (1), the one end that mini aspiration pump (16) were kept away from in aspiration tube (17) runs through sucking disc (18), and aspiration tube (17) are linked together with sucking disc (18).

2. The experimental plate for force resolution according to claim 1, wherein: all welded on the experiment plate body (1) of scale (3) upper and lower both sides have fixture block (4), and fixture block (4) set up to five groups, and its fixture block (4) set up respectively in the upper and lower both sides of scale (3), sliding block (6) one end welding is kept away from in second spring (7) has the rand of mutually supporting with fixture block (4).

3. The experimental plate for force resolution according to claim 1, wherein: the surface of scale (3) and dial plate (9) all is provided with the scale mark, the bottom surface of experiment plate body (1) is provided with the recess, and has placed weight (14) in the recess.

4. The experimental plate for force resolution according to claim 1, wherein: the length of the first spring (5), the length of the second spring (7) are consistent with the length of the third spring (8), three groups of elastic lines (12) are arranged, and the length of the elastic lines (12) is consistent.

5. The experimental plate for force resolution according to claim 1, wherein: the pulley presss from both sides (13) and is provided with two sets ofly, dial plate (9) surface is provided with the pulley of round and pulley clamp (13) and mutually supports.

6. The force resolving lab panel of claim 1, wherein: the output end of the zinc-manganese battery (15) is electrically connected with the input ends of the operation button (2) and the mini air pump (16) through wires, and the output end of the operation button (2) is electrically connected with the input end of the mini air pump (16) through wires.