CN212032486U

CN212032486U - Demonstration device for physical inertia experiment

Info

Publication number: CN212032486U
Application number: CN202021005056.3U
Authority: CN
Inventors: 桑杰措
Original assignee: Yuncheng University
Current assignee: Yuncheng University
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-11-27
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses a presentation device of physical inertia experiment, including the base, one side on base top is provided with the connecting block, and the fixed stopper that is equipped with in middle part of connecting block bottom, and the middle part on base top set up with stopper sliding connection's spout, the both sides of stopper bottom are all fixed and are equipped with the gyro wheel, the fixed connecting plate that is equipped with in top of connecting block. The utility model discloses can make the promotion piece hit the dynamics of stopper the same at every turn, and then make the base drive the initial velocity that the connecting plate removed the same, the accuracy nature of demonstration result has been improved, scram when the stopper strikes and blocks the piece, the slider continues to advance under inertial effect, through the three piece that blocks, can observe the distance that the stopper removed with the speed scram of difference, and then judge slider inertia size, thereby wait to reach speed and inertial relation, through the device, make the audio-visual understanding inertia of student, the teaching quality has been improved.

Description

Demonstration device for physical inertia experiment

Technical Field

The utility model relates to a presentation device specifically is a presentation device of physics inertia experiment.

Background

The property of an object to remain in a stationary state or in a state of uniform linear motion is called inertia. Inertia is an inherent property of an object that manifests as a degree of impedance of the object to changes in its state of motion, and mass is a measure of the magnitude of the inertia of the object.

At present, inertia is a common phenomenon in physics, and in physics teaching, as inertia is abstract, students are difficult to understand, so that teaching quality is poor. Therefore, the demonstration device for the physical inertia experiment is provided by improving the experiment.

SUMMERY OF THE UTILITY MODEL

For solving the defect that prior art exists, the utility model provides a presentation device of physics inertia experiment.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a demonstration device for physical inertia experiment, which comprises a base, wherein one side of the top end of the base is provided with a connecting block, the middle part of the bottom end of the connecting block is fixedly provided with a limiting block, the middle part of the top end of the base is provided with a sliding chute which is in sliding connection with the limiting block, both sides of the bottom end of the limiting block are fixedly provided with rolling wheels, the top end of the connecting block is fixedly provided with a connecting plate, the top end of the connecting plate is provided with a sliding block, one side of the base is provided with a transmission mechanism for pushing the limiting block, the transmission mechanism comprises a cylinder body, one side of the cylinder body is fixedly connected with the base, one side of the cylinder body is arranged in an open manner, one side in the cylinder body is provided with a spring, a pull rod is inserted in the spring, one end of the pull rod penetrates out of the, and the opening communicates with each other with the spout, the other end of pull rod wears out the opposite side of spring and barrel in proper order and fixedly is equipped with the pull head, one side magnetism of pull head is connected with the electro-magnet, the bottom mounting of electro-magnet is equipped with L shape pole, and L shape pole and base fixed connection, the one end equidistance interlude of base one avris has three to block the piece, and blocks the piece and keep away from the stopper, block one side of piece and penetrate in the spout.

As a preferred technical scheme of the utility model, drive mechanism still includes switch, switch fixed mounting is at the other end of a base avris, the electro-magnet passes through switch and external power supply electric connection.

As a preferred technical scheme of the utility model, the fluting has been seted up at the middle part on connecting plate top, and the slider is located the fluting, grooved one side is equipped with the scale.

As a preferred technical scheme of the utility model, the fixed spacing slider that is equipped with in middle part that blocks piece one side, one side of spout is opened and is equipped with spacing slider assorted spacing spout, and spacing slider keeps away from spacing spout.

As an optimized technical scheme of the utility model, the fixed button head that is equipped with in middle part that blocks another avris of piece.

As an optimized technical proposal of the utility model, the diameter ratio of the opening is larger than that of the pushing block.

The utility model has the advantages that: the demonstration device for the physical inertia experiment has the advantages that the pull head of the transmission mechanism can be sucked when the electromagnet of the transmission mechanism is electrified, the spring of the transmission mechanism is compressed, the electromagnet is powered off, the spring is reset at the moment, the pushing block of the transmission mechanism is enabled to collide with the limiting block by matching with the roller, so that the base drives the connecting plate to move, the force for the pushing block to collide with the limiting block every time can be the same through the transmission mechanism, the initial speed for the base to drive the connecting plate to move is the same, the accuracy of a demonstration result is improved, the limiting block suddenly stops when colliding with the blocking block, the sliding block continuously moves under the action of inertia, the moving distance of the sliding block when the limiting block suddenly stops at different speeds can be observed through the three blocking blocks, the inertia size of the sliding block is further judged, the relation between the waiting speed and the inertia is accordingly, and students, the teaching quality is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a demonstration device for a physical inertia experiment of the present invention;

fig. 2 is a schematic sectional structure view of a demonstration device for physical inertia experiments of the present invention;

fig. 3 is a schematic sectional structure view of a transmission mechanism of a demonstration apparatus for physical inertia experiments according to the present invention;

fig. 4 is a schematic view of a partial cross-sectional structure of a base of a demonstration apparatus for a physical inertia experiment.

In the figure: 1. a base; 2. connecting blocks; 3. a limiting block; 4. a roller; 5. a connecting plate; 6. a slider; 7. a transmission mechanism; 701. a barrel; 702. a spring; 703. a pull rod; 704. a stopper; 705. a pushing block; 706. a slider; 707. an electromagnet; 708. an L-shaped rod; 709. a power switch; 8. a blocking block; 9. calibration; 10. a round head; 11. and a limiting sliding block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the device for demonstrating physical inertia experiment of the present invention comprises a base 1, a connecting block 2 is disposed on one side of the top end of the base 1, a stopper 3 is fixedly disposed in the middle of the bottom end of the connecting block 2, a sliding slot slidably connected to the stopper 3 is disposed in the middle of the top end of the base 1, rollers 4 are fixedly disposed on both sides of the bottom end of the stopper 3, a connecting plate 5 is fixedly disposed on the top end of the connecting block 2, a slider 6 is disposed on the top end of the connecting plate 5, a transmission mechanism 7 for pushing the stopper 3 is disposed on one side of the base 1, the transmission mechanism 7 comprises a barrel 701, one side of the barrel 701 is fixedly connected to the base 1, one side of the barrel 701 is open, a spring 702 is disposed on one side of the barrel 701, a pull rod 703 is inserted into the spring 702, one end of the pull rod 703, an opening is formed in one side of the base 1 and a position right opposite to the pushing block 705, the opening is communicated with the sliding groove, the other end of the pull rod 703 sequentially penetrates through the other side of the spring 702 and the other side of the barrel 701 and is fixedly provided with a pull head 706, one side of the pull head 706 is magnetically connected with an electromagnet 707, an L-shaped rod 708 is fixedly arranged at the bottom end of the electromagnet 707, the L-shaped rod 708 is fixedly connected with the base 1, three blocking blocks 8 are inserted into one end of one side of the base 1 at equal intervals, the blocking blocks 8 are far away from the limiting block 3, and one side of the blocking blocks 8.

The transmission mechanism 7 further includes a power switch 709, the power switch 709 is fixedly installed at the other end of one side of the base 1, and the electromagnet 707 is electrically connected to an external power source through the power switch 709.

Wherein, the fluting has been seted up at the middle part on 5 tops of connecting plate, and slider 6 is located the fluting, and grooved one side is equipped with scale 9, and stopper 3 scram when striking stop block 8, slider 6 continues to advance in the fluting under inertial effect, through scale 9, can observe the distance that slider 6 removed.

Wherein, the fixed spacing slider 11 that is equipped with in middle part that blocks piece 8 one side, one side of spout open be equipped with spacing slider 11 assorted spacing spout, and spacing slider 11 keeps away from spacing spout, through spacing slider 11, can prevent to block piece 8 and pull out base 1 completely, has improved the practicality.

Wherein, the fixed button head 10 that is equipped with in middle part of 8 avris of blockking, through button head 10, the push-and-pull of being convenient for blocks piece 8, has improved the practicality.

The diameter of the opening is larger than that of the pushing block 705, the stopper 704 drives the pushing block 705 to move under the reset action of the spring 702, and the pushing block 705 penetrates through the opening and impacts the limiting block 3.

When the demonstration device works, the power switch 709 is opened, the pull head 706 is pulled, the pull head 706 drives the stop block 704 to move, the spring 702 is compressed, the pull head 706 is in contact with the electromagnet 707, the pull head 706 is attracted to the electromagnet 707 under the action of the working electromagnet 707, the power switch 709 is closed, the electromagnet 707 stops working, under the reset action of the spring 702, the stop block 704 drives the push block 705 to move, the push block 705 penetrates through the opening and impacts the limit block 3, the base 1 drives the connecting plate 5 to move by matching with the roller 4, the force of the push block 705 impacting the limit block 3 at each time can be the same through the transmission mechanism 7, the initial speed of the base 1 driving the connecting plate 5 to move is the same, the accuracy of the demonstration result is improved, the limit block 3 stops suddenly when impacting the limit block 8, the slide block 6 continues to advance in the groove under the action of inertia and passes through, can observe the distance that slider 6 removed, through three stopper 8, can observe the distance that slider 6 removed when stopper 3 scram with different speed, and then judge 6 inertia sizes of slider to wait to the relation of speed and inertia, through the device, make the audio-visual understanding inertia of student, improved the teaching quality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The demonstration device for the physical inertia experiment comprises a base (1) and is characterized in that a connecting block (2) is arranged on one side of the top end of the base (1), a limiting block (3) is fixedly arranged in the middle of the bottom end of the connecting block (2), a sliding chute in sliding connection with the limiting block (3) is formed in the middle of the top end of the base (1), rolling wheels (4) are fixedly arranged on two sides of the bottom end of the limiting block (3), a connecting plate (5) is fixedly arranged on the top end of the connecting block (2), a sliding block (6) is arranged on the top end of the connecting plate (5), a transmission mechanism (7) used for pushing the limiting block (3) is arranged on one side of the base (1), the transmission mechanism (7) comprises a barrel body (701), one side of the barrel body (701) is fixedly connected with the base (1), one side of the barrel body (701) is open, a spring (702, a pull rod (703) is inserted in the spring (702), one end of the pull rod (703) penetrates out of the spring (702) and is fixedly provided with a stop block (704), a pushing block (705) is fixedly arranged in the middle of one side of the stop block (704), an opening is arranged on one side of the base (1) and the part opposite to the pushing block (705), the opening is communicated with the sliding groove, the other end of the pull rod (703) sequentially penetrates through the spring (702) and the other side of the cylinder body (701) and is fixedly provided with a pull head (706), one side of the slider (706) is magnetically connected with an electromagnet (707), the bottom end of the electromagnet (707) is fixedly provided with an L-shaped rod (708), and the L-shaped rod (708) is fixedly connected with the base (1), three stop blocks (8) are inserted into one end of one side of the base (1) at equal intervals, and the stop block (8) is far away from the limit block (3), and one side of the stop block (8) penetrates into the sliding groove.

2. The demonstration device for the physical inertia experiment as claimed in claim 1, wherein the transmission mechanism (7) further comprises a power switch (709), the power switch (709) is fixedly installed at the other end of one side of the base (1), and the electromagnet (707) is electrically connected with an external power supply through the power switch (709).

3. The demonstration device for the physical inertia experiment as claimed in claim 1, wherein the middle of the top end of the connecting plate (5) is provided with a slot, the sliding block (6) is positioned in the slot, and one side of the slot is provided with a scale (9).

4. The demonstration device for the physical inertia experiment as claimed in claim 1, wherein a limit slide block (11) is fixedly arranged in the middle of one side of the stop block (8), a limit slide groove matched with the limit slide block (11) is arranged on one side of the slide groove, and the limit slide block (11) is far away from the limit slide groove.

5. A demonstration device for physical inertia experiments according to claim 1, wherein a round head (10) is fixedly arranged at the middle of the other side of the stop block (8).

6. A demonstration device for physical inertia experiments according to claim 1, wherein the diameter of the opening is larger than the diameter of the pushing block (705).