CN211349821U

CN211349821U - Simple harmonic motion teaching aid of physics

Info

Publication number: CN211349821U
Application number: CN201922329730.7U
Authority: CN
Inventors: 周琼
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-25
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a simple harmonic motion teaching aid for physics, which comprises a supporting plate, wherein two sides of the supporting plate are respectively arranged at the bottom between the opposite sides of two supporting rods; the two electric telescopic rods are arranged on two sides of the supporting plate respectively, and a first electromagnetic plate and a second electromagnetic plate are arranged on the opposite ends of the two electric telescopic rods respectively; and one sides of the two U-shaped frames, which are separated from each other, are respectively fixed at one sides of the two supporting rods, which are opposite to each other. The utility model provides a simple harmonic motion teaching aid of physics, through the setting of devices such as electric telescopic handle and electro-magnet, make the motion of demonstration board can pass through the electric telescopic handle drive, make laboratory demonstration board can the uniform motion, guarantee the accuracy nature of experimental result, and through the setting of devices such as contact switch and electromagnetic plate, make the demonstration board can be accurate when the motion link up with two electric telescopic handle, guarantee going on smoothly of experiment.

Description

Simple harmonic motion teaching aid of physics

Technical Field

The utility model relates to a teaching aid technical field especially relates to a simple harmonic motion teaching aid of physics.

Background

The teaching aid can improve the learning interest of students, enrich perceptual knowledge, help to form clear concepts, develop the observation ability and thinking ability of students, generally have real objects, and directly present objective things in front of the students so as to be directly experienced by the students; the simulation real object comprises a specimen, a model and other reproductions, such as a globe, a human body model, an engineering equipment model and the like, a chart for describing the image of the object, and various visualization charts comprising pictures, photos, maps, statistics, designs and the like.

Often use the sand pendulum model when professor's harmonic motion relevant knowledge, the demonstration board of general sand pendulum model all is mr manual pulling, receives mr pulling speed to influence, and harmonic motion's motion curve demonstration is irregular for student's cognition receives the hindrance, and mr manual pulling can't accomplish at the uniform velocity completely, influences the accuracy nature of experimental result.

Therefore, there is a need to provide a new teaching tool for simple harmonic motion in physics to solve the above-mentioned technical problems.

Disclosure of Invention

The utility model provides a simple harmonic motion teaching aid of physics, the technical problem of solution are that the demonstration board of general sand pendulum model all is the manual pulling of mr, receives mr pulling speed to influence, and the motion curve demonstration of simple harmonic motion is irregular for student's cognition receives the hindrance.

In order to solve the technical problem, the utility model provides a simple harmonic motion teaching aid of physics, include: two support rods; the two sides of the supporting plate are respectively arranged at the bottom between the opposite sides of the two supporting rods; the two electric telescopic rods are arranged on two sides of the supporting plate respectively, and a first electromagnetic plate and a second electromagnetic plate are arranged on the opposite ends of the two electric telescopic rods respectively; the two U-shaped frames are fixed on the opposite sides of the two supporting rods respectively at the sides away from each other; the two sides of the demonstration board are respectively arranged between the opposite sides of the two U-shaped frames; the two electromagnets, and one sides of the two electromagnets opposite to each other are arranged on two sides of the demonstration board; one end of the clamping rod is fixed on one side of the supporting plate; the two sides of the two contact switches, which are away from each other, are respectively arranged at the other end of the clamping rod and one side of the second electromagnetic plate; the top plate is arranged at the top between the opposite sides of the two support rods; the top of the hourglass is arranged at the bottom of the top plate through a connecting line.

Preferably, a cavity is formed in the center of the top plate, a swinging wheel is rotatably connected between the top and the bottom of the inner wall of the cavity, and the center of the swinging wheel is movably connected with the surface of the connecting line.

Preferably, the top and the bottom of the inner wall of the U-shaped frame are fixedly connected with mounting frames, two sliding plates are slidably connected between two sides of the inner wall of the mounting frame, one side, away from the sliding plates, of each sliding plate is fixedly connected with an extrusion spring, one end, away from the two extrusion springs, of each extrusion spring is fixedly connected with the inner wall of the U-shaped frame, one side, away from the sliding plates, of each sliding plate is fixedly connected with an extension rod, one end, opposite to the extension rods, of each extension rod penetrates through the U-shaped frame and extends to the outside of the U-shaped frame, one end, extending to the outside of the U-shaped frame, of each extension rod is provided with a roller, and one side, opposite to the roller, of each roller is movably connected with the top and.

Preferably, the equal fixedly connected with mounting panel in both sides between roof inner wall top and the bottom, two the equal fixedly connected with fixed spring in one side that the mounting panel departed, two the equal fixedly connected with stripper plate of one end that fixed spring departed mutually, and two the top and the bottom of stripper plate all with the inner wall sliding connection of roof, two the equal fixedly connected with joint pole in one side that the stripper plate departed, two the one end that the joint pole departed mutually all runs through the roof extends to the outside of roof, two the joint pole extends to the outside one end of roof all through the fixed orifices with the bracing piece joint.

Preferably, the surfaces of the two clamping rods are fixedly connected with pull rods, and the other ends of the two pull rods penetrate through the top plate and extend to the outside of the top plate.

Preferably, the equal fixedly connected with dead lever in both sides of backup pad, two the one end that the dead lever departed from runs through two respectively the bracing piece extends to two the opposite side of bracing piece, fixedly connected with baffle between the top of dead lever inner wall and the bottom, the equal fixedly connected with installation spring in one side that the baffle departed, two the equal fixedly connected with movable plate in one end that the installation spring departed from, two the one side that the movable plate departed from all is fixed with the gag lever post, and two the one end that the gag lever post departed from runs through the dead lever and extends to the outside of dead lever.

Preferably, the bottom of the two supporting rods is fixedly connected with a base, and the surface of the two supporting rods is provided with scale marks.

Compared with the prior art, the utility model provides a simple harmonic motion teaching aid of physics has following beneficial effect:

the utility model provides a physics simple harmonic motion teaching aid, which can drive the motion of a demonstration board through an electric telescopic rod through the arrangement of devices such as the electric telescopic rod and an electromagnet, so that the demonstration board in a laboratory can move at a uniform speed, the accuracy of an experimental result is ensured, and the demonstration board can be accurately linked with two electric telescopic rods during the motion through the arrangement of devices such as a contact switch and an electromagnetic plate, so as to ensure the smooth proceeding of the experiment, and the friction force between a connecting wire and a top plate during the swinging can be reduced through the arrangement of a swinging wheel, so as to further ensure the accuracy of the experimental result, thereby more intuitively demonstrating the simple harmonic motion to students, improving the teaching effect, and the demonstration board can be disassembled through the arrangement of devices such as a U-shaped frame and a roller wheel, thereby being capable of being handed over to different students after the experiment is completed, thereby being convenient for demonstrating the experimental result, and the supporting plate and the top plate can be detached and separated from the supporting rod through the arrangement of devices such as the clamping rod and the fixing rod, so that the size of the device is reduced, and the device is convenient to store.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the teaching tool for simple harmonic motion in physics provided by the present invention;

FIG. 2 is a side view of the structure of FIG. 1;

FIG. 3 is a schematic view of the top plate shown in FIG. 1;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

fig. 5 is a partially enlarged structural view of a portion B shown in fig. 2.

Reference numbers in the figures: 1. the support rod, 2, a support plate, 3, an electric telescopic rod, 4, a first electromagnetic plate, 5, a second electromagnetic plate, 6, an electromagnet, 7, a demonstration plate, 8, a U-shaped frame, 9, a contact switch, 10, a top plate, 11, a cavity, 12, a swinging wheel, 13, a connecting wire, 14, an hourglass, 15, a mounting plate, 16, a fixed spring, 17, a squeezing plate, 18, a clamping rod, 19, a pull rod, 20, a mounting frame, 21, a sliding plate, 22, a squeezing spring, 23, an extension rod, 24, a roller, 25, a fixed rod, 26, a partition plate, 27, a mounting spring, 28, a moving plate, 29, a limiting rod, 30, a base, 31, a scale mark, 32 and a clamping rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of the teaching tool for simple harmonic motion in physics according to the present invention; FIG. 2 is a side view of the structure of FIG. 1; FIG. 3 is a schematic view of the top plate shown in FIG. 1; FIG. 4 is an enlarged view of a portion A of FIG. 1; fig. 5 is a partially enlarged structural view of a portion B shown in fig. 2. Simple harmonic motion teaching aid of physics includes: two support rods 1; the two sides of the supporting plate 2 are respectively arranged at the bottom between the opposite sides of the two supporting rods 1; the two electric telescopic rods 3 are respectively arranged at two opposite ends of the supporting plate 2, and a first electromagnetic plate 4 and a second electromagnetic plate 5 are respectively arranged at the two opposite ends of the two electric telescopic rods 3; the two U-shaped frames 8, and the separated sides of the two U-shaped frames 8 are respectively fixed on the opposite sides of the two support rods 1; the two sides of the demonstration board 7 are respectively arranged between the opposite sides of the two U-shaped frames 8; two electromagnets 6, wherein one sides of the two electromagnets 6 opposite to each other are arranged on two sides of the demonstration board 7; one end of the clamping rod 32 is fixed on one side of the supporting plate 2; two contact switches 9, wherein the separated sides of the two contact switches 9 are respectively arranged at the other end of the clamping rod 32 and one side of the second electromagnetic plate 5; the top plate 10 is arranged at the top between the opposite sides of the two support rods 1; hourglass 14, connecting wire 13 is passed through at hourglass 14's top set up in the bottom of roof 10, through the setting of devices such as electric telescopic handle 3 and electro-magnet 6, make demonstration board 7's motion can pass through electric telescopic handle 3 drive, make demonstration board 7 can the uniform motion during the experiment, guarantee the accuracy nature of experimental result, and through the setting of devices such as contact switch 9 and electromagnetic plate, make demonstration board 7 can be accurate when the motion link up with two electric telescopic handle 3, guarantee going on smoothly of experiment.

Cavity 11 has been seted up to the center department of roof 10, it is connected with swinging wheel 12 to rotate between the top of cavity 11 inner wall and the bottom, swinging wheel 12's center department and connecting wire 13 surface swing joint, through swinging wheel 12's setting, can reduce connecting wire 13 when the swing with roof 10's frictional force, further guarantee the accuracy of experimental result to can be more audio-visual demonstrate the harmonic motion for the student, improve the teaching effect.

The top and the bottom of the inner wall of the U-shaped frame 8 are fixedly connected with mounting frames 20, sliding plates 21 are slidably connected between two sides of the inner wall of the two mounting frames 20, one side of the two sliding plates 21 away from each other is fixedly connected with extrusion springs 22, one ends of the two extrusion springs 22 away from each other are fixedly connected with the inner wall of the U-shaped frame 8, one sides of the two sliding plates 21 away from each other are fixedly connected with extension rods 23, one ends of the two extension rods 23 opposite to each other penetrate through the U-shaped frame 8 and extend to the outside of the U-shaped frame 8, one ends of the two extension rods 23 extending to the outside of the U-shaped frame 8 are respectively provided with rollers 24, and one sides of the two rollers 24 opposite to each other are respectively movably connected with the top and the bottom of the demonstration plate 7, and the demonstration plate 7 can be detached through the arrangement of the U-shaped frame 8, the rollers 24 and the like, therefore, the experimental result can be transmitted to different students after the experiment is finished, and the experimental result can be displayed more conveniently.

Equal fixedly connected with mounting panel 15 in both sides between roof 10 inner wall top and the bottom, two the equal fixedly connected with fixed spring 16 in one side that mounting panel 15 leaves mutually, two the equal fixedly connected with stripper plate 17 in one end that fixed spring 16 leaves mutually, and two stripper plate 17's top and bottom all with the inner wall sliding connection of roof 10, two the equal fixedly connected with joint pole 18 in one side that stripper plate 17 leaves mutually, two the one end that joint pole 18 leaves mutually all runs through roof 10 extends to the outside of roof 10, two joint pole 18 extends to the outside one end of roof 10 all through the fixed orifices with 1 joint of bracing piece for roof 10 can separate with bracing piece 1.

The surfaces of the two clamping rods 18 are fixedly connected with pull rods 19, and the other ends of the two pull rods 19 penetrate through the top plate 10 and extend to the outside of the top plate 10.

The equal fixedly connected with dead lever 25 in both sides of backup pad 2, two the one end that the dead lever 25 leaves runs through two respectively bracing piece 1 extends to two the opposite side of bracing piece 1, fixedly connected with baffle 26 between the top of dead lever 25 inner wall and the bottom, the equal fixedly connected with installation spring 27 in one side that baffle 26 leaves, two the equal fixedly connected with movable plate 28 of one end that installation spring 27 leaves, two one side that movable plate 28 leaves all is fixed with gag lever post 29, and two the outside that dead lever 25 and extend to dead lever 25 is run through to the one end that gag lever post 29 leaves for bracing piece 2 can separate with bracing piece 1.

Through the setting of devices such as joint pole 18 and dead lever 25 for backup pad 2 and roof 10 all can be dismantled the separation with bracing piece 1, thereby reduce the device volume, convenient storage.

Two equal fixedly connected with base 30 in bottom of bracing piece 1, two scale mark 31 has all been seted up on the surface of bracing piece 1, conveniently carries out the experiment of co-altitude, has verified the influence of height to simple harmonic motion.

The utility model provides a theory of operation of simple harmonic motion teaching aid of physics as follows:

according to the scale marks 31, the hourglass 14 is pulled to a certain height, the hourglass 14 is released, the hourglass 14 is made to perform pendulum motion, meanwhile, the electric telescopic rod 3 drives the second electromagnetic plate 5 attached to the electromagnet 6 to move, the second electromagnetic plate 5 drives the demonstration plate 7 to move, when the demonstration plate 7 moves to a half, the contact switch 9 is contacted, so that the second electromagnetic plate 5 is separated from the electromagnet 6, the first electromagnetic plate 4 is attached to the electromagnet 6, therefore, the other electric telescopic rod 3 is utilized to continuously drive the demonstration board 7 to move, and along with the movement of the demonstration board 7 and the swinging of the hourglass 14, a curve which is in accordance with the simple harmonic motion is covered on the demonstration board 7, so that the simple harmonic motion is visually displayed, after the experiment, the pull rod 19 is pulled to separate the top plate 10 from the support rod 1, and then the limiting rod 29 is pressed, so that the support plate 2 is separated from the support rod 1, and the device is concentrated and stored after the size is reduced.

the utility model provides a physics simple harmonic motion teaching aid, which can drive the demonstration board 7 to move through the electric telescopic rod 3 through the arrangement of the electric telescopic rod 3, the demonstration board 7 can move at a uniform speed during the experiment, the accuracy of the experimental result is ensured, and the demonstration board 7 can be accurately connected with the two electric telescopic rods 3 during the movement through the arrangement of the contact switch 9, the electromagnetic plate and other devices, the smooth proceeding of the experiment is ensured, the friction between the connecting wire 13 and the top plate 10 during the swinging can be reduced through the arrangement of the swinging wheel 12, the accuracy of the experimental result is further ensured, thereby the simple harmonic motion can be more intuitively demonstrated to students, the teaching effect is improved, the demonstration board 7 can be disassembled through the arrangement of the U-shaped frame 8, the roller 24 and other devices, thereby different students can be read after the experiment is completed, the experimental result is more conveniently shown, and the supporting plate 2 and the top plate 10 can be detached from and separated from the supporting rod 1 through the arrangement of the clamping rod 18, the fixing rod 25 and other devices, so that the size of the device is reduced, and the device is convenient to store.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a simple harmonic motion teaching aid of physics which characterized in that includes: two support rods;

the two sides of the supporting plate are respectively arranged at the bottom between the opposite sides of the two supporting rods;

the two electric telescopic rods are arranged on two sides of the supporting plate respectively, and a first electromagnetic plate and a second electromagnetic plate are arranged on the opposite ends of the two electric telescopic rods respectively;

the two U-shaped frames are fixed on the opposite sides of the two supporting rods respectively at the sides away from each other;

the two sides of the demonstration board are respectively arranged between the opposite sides of the two U-shaped frames;

the two electromagnets, and one sides of the two electromagnets opposite to each other are arranged on two sides of the demonstration board;

one end of the clamping rod is fixed on one side of the supporting plate;

the two sides of the two contact switches, which are away from each other, are respectively arranged at the other end of the clamping rod and one side of the second electromagnetic plate;

the top plate is arranged at the top between the opposite sides of the two support rods;

the top of the hourglass is arranged at the bottom of the top plate through a connecting line.

2. The teaching aid of simple harmonic motion in physics of claim 1 wherein the top plate has a cavity at its center, a swinging wheel is rotatably connected between the top and bottom of the inner wall of the cavity, the center of the swinging wheel is movably connected to the surface of the connecting line.

3. The teaching tool for simple harmonic motion in physics according to claim 1, wherein the top and the bottom of the inner wall of the U-shaped frame are fixedly connected with a mounting frame, a sliding plate is slidably connected between both sides of the inner wall of the two mounting frames, an extrusion spring is fixedly connected to the side of the two sliding plates away from each other, one end of the two extrusion springs away from each other is fixedly connected with the inner wall of the U-shaped frame, an extension rod is fixedly connected to the side of the two sliding plates away from each other, one end of the two extension rods opposite to each other penetrates through the U-shaped frame and extends to the outside of the U-shaped frame, rollers are arranged at the ends of the two extension rods extending to the outside of the U-shaped frame, and one side of the two rollers opposite to each other is movably connected with the top and the bottom of the demonstration plate respectively.

4. The teaching aid of simple harmonic motion in physics of claim 1, wherein, the both sides between roof inner wall top and bottom are all fixedly connected with mounting panel, two the equal fixedly connected with fixed spring in the one side that the mounting panel leaves, two the equal fixedly connected with stripper plate in the one end that fixed spring leaves, and two the top and the bottom of stripper plate all with the inner wall sliding connection of roof, two the equal fixedly connected with joint pole in the one side that the stripper plate leaves, two the one end that the joint pole leaves all runs through the roof and extends to the outside of roof, two the joint pole extend to the outside one end of roof all through the fixed orifices with the bracing piece joint.

5. The physics simple harmonic motion teaching aid according to claim 4, wherein a tie bar is fixedly connected to a surface of each of the two clamping bars, and the other end of each of the two tie bars extends through and to the outside of the top plate.

6. The teaching aid of simple harmonic motion in physics of claim 1, wherein the supporting plate has fixed rods fixedly connected to both sides thereof, the two fixed rods have separated ends respectively penetrating the two supporting rods and extending to the other sides of the two supporting rods, a partition is fixedly connected between the top and the bottom of the inner wall of the fixed rods, the separated side of the partition has a mounting spring fixedly connected thereto, the two mounting springs have separated ends respectively fixedly connected to a moving plate, the two moving plates have separated sides respectively having a stop rod fixed thereto, and the two stop rods have separated ends penetrating the fixed rods and extending to the outside of the fixed rods.

7. The teaching aid of simple harmonic motion in physics of claim 1 wherein the bottom of each of the two support rods is fixedly connected with a base, and the surface of each of the two support rods is provided with scale marks.