CN210119903U

CN210119903U - Teaching equipment for demonstrating electromagnetic induction phenomenon

Info

Publication number: CN210119903U
Application number: CN201920898894.9U
Authority: CN
Inventors: 朱科宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-28
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a teaching equipment for demonstrating electromagnetic induction phenomenon, including teaching equipment main part, connecting wire, ampere meter, U type magnet and line hole, be provided with the demonstration platform in the teaching equipment main part, and the upper end bolt fastening of demonstration platform has the protection casing to the slip mouth has been seted up on the top of protection casing, and the inside interlude of slip mouth has the slip head simultaneously, the lower part of slip head is provided with the bearing, and has interlude the catch bar in the inside opening of slip head to the lower extreme of catch bar is fixed with U type magnet, both sides welding has the support column around the demonstration platform of slip mouth below, and twines respectively on the support column of both sides around and has first coil and second coil, and first coil and second coil are all through connecting wire and line hole and ampere meter electric connection. This a teaching equipment for demonstrating electromagnetic induction phenomenon can make things convenient for teacher's demonstration and student's study operation, and convenient teaching is used.

Description

Teaching equipment for demonstrating electromagnetic induction phenomenon

Technical Field

The utility model relates to a teaching equipment technical field specifically is a teaching equipment for demonstrating electromagnetic induction phenomenon.

Background

The teaching equipment of electromagnetic induction phenomenon is a device that observes magnetism and give birth to electricity, is a common equipment in the physical teaching, but the teaching equipment of current electromagnetic induction phenomenon, when using, inconvenient teacher's demonstration operation and student's learning operation, and be unfavorable for the control to the coil number of turns to do not do benefit to the protection to the coil.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a teaching equipment for demonstrating electromagnetic induction phenomenon to solve the teaching equipment of the current electromagnetic induction phenomenon that proposes in the above-mentioned background art, when using, inconvenient teacher's demonstration operation and student's learning operation, and be unfavorable for the control to the coil number of turns, and do not do benefit to the problem to the coil protection.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a teaching equipment for demonstrating electromagnetic induction phenomenon, includes teaching equipment main part, connecting wire, ampere meter, U type magnet and line hole, be provided with the demonstration platform in the teaching equipment main part, and the upper end bolt fastening of demonstration platform has the protection casing to the slip mouth has been seted up on the top of protection casing, and the inside interlude of slip mouth has the slip head simultaneously, the lower part of slip head is provided with the bearing, and the inside opening interlude of slip head has the catch bar to the lower extreme of catch bar is fixed with U type magnet, both sides welding has the support column around the demonstration platform of slip mouth below, and twine respectively on the support column of both sides around and have first coil and second coil, and first coil and second coil all pass through connecting wire and line hole and ampere meter electric connection.

Preferably, the protection cover is made of transparent toughened glass, and the height inside the protection cover is larger than that of the support column.

Preferably, the sliding opening is located in the middle of the upper portion of the protection cover, and the sliding opening penetrates through the top of the protection cover.

Preferably, the shape structure of the sliding head is a boss structure, the interior of the sliding head is a hollow structure, and the diameter of the upper part of the sliding head is larger than that of the lower part of the sliding head.

Preferably, the distance between the inner leads of the first coil and the second coil is smaller than the width of the inner side of the U-shaped magnet.

Preferably, the opening extends through the sliding head, and the diameter of the opening is larger than that of the push rod.

Compared with the prior art, the beneficial effects of the utility model are that: the teaching equipment for demonstrating the electromagnetic induction phenomenon can facilitate the demonstration of teachers and the learning operation of students, and is convenient for teaching;

1. the demonstration table is provided with a protective cover which protects the first coil and the second coil, so that the first coil and the second coil are prevented from being accidentally damaged, the normal use of the teaching equipment main body is facilitated, and the connection and disconnection of the first coil, the second coil and the ammeter can be controlled;

2. the protective cover is provided with the sliding opening which plays a role of being matched and installed with the sliding head, so that the pushing rod can conveniently slide in the sliding opening through the sliding head, the movement of the U-shaped magnet is further controlled, the sliding head is arranged to be of a boss structure, the sliding head can be prevented from falling into the protective cover from the sliding opening, and the sliding head can conveniently and stably slide;

3. the diameter of the opening is larger than that of the push rod, so that the push rod can move up and down in the opening, and the up-and-down movement of the U-shaped magnet is facilitated.

Drawings

FIG. 1 is a schematic view of a top view structure of a teaching apparatus main body of the present invention;

FIG. 2 is a schematic cross-sectional view of the portion A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the front view structure of the teaching device main body of the present invention;

fig. 4 is a schematic view of the structure of the sliding head of the present invention.

In the figure: 1. a teaching device main body; 2. a demonstration table; 3. a protective cover; 4. a sliding port; 5. a sliding head; 6. a push rod; 7. a support pillar; 8. a first coil; 9. a second coil; 10. a connecting wire; 11. an ammeter; 12. a U-shaped magnet; 13. a wire hole; 14. an opening; 15. and a bearing.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a teaching device for demonstrating electromagnetic induction phenomenon comprises a teaching device main body 1, a demonstration table 2, a protective cover 3, a sliding port 4, a sliding head 5, a push rod 6, a support column 7, a first coil 8, a second coil 9, a connecting wire 10, an ammeter 11, a U-shaped magnet 12, a wire hole 13, an opening 14 and a bearing 15, wherein the demonstration table 2 is arranged on the teaching device main body 1, the protective cover 3 is fixed at the upper end of the demonstration table 2 through a bolt, the sliding port 4 is formed in the top end of the protective cover 3, the sliding head 5 is inserted into the sliding port 4, the bearing 15 is arranged at the lower part of the sliding head 5, the push rod 6 is inserted into the opening 14 in the sliding head 5, the U-shaped magnet 12 is fixed at the lower end of the push rod 6, the support columns 7 are welded at the front side and the rear side of the demonstration table 2 below the sliding port 4, the first coil 8 and the second coil 9 are respectively arranged on the support columns 7 at the, and the first coil 8 and the second coil 9 are both electrically connected with the ammeter 11 through the connecting wire 10 and the wire hole 13.

The protection casing 3 of this example is the transparent toughened glass material, and the inside height that highly is greater than the height of support column 7 of protection casing 3, sets up like this and can avoid protection casing 3 and support column 7 to contact, is favorable to the installation of protection casing 3 outside support column 7.

The sliding opening 4 is located in the middle of the upper portion of the protective cover 3, the sliding opening 4 penetrates through the top of the protective cover 3, and the arrangement is favorable for the push rod 6 to slide in the sliding opening 4 through the sliding head 5, so that the horizontal movement of the U-shaped magnet 12 is controlled.

The shape structure of slider 5 is boss structure, and the inside of slider 5 is hollow column structure to the diameter on slider 5 upper portion is greater than the diameter of its lower part, sets up like this and plays the effect that makes slider 5 place on sliding opening 4, avoids slider 5 to drop inside protection casing 3 from sliding opening 4.

The distance between the wires at the inner sides of the first coil 8 and the second coil 9 is smaller than the width of the inner side of the U-shaped magnet 12, so that the two sides of the lower part of the U-shaped magnet 12 are respectively arranged in the first coil 8 and the second coil 9, and the first coil 8 or the second coil 9 is enabled to cut magnetic lines.

The opening 14 penetrates through the sliding head 5, and the diameter of the opening 14 is larger than that of the push rod 6, so that the arrangement has the function of enabling the push rod 6 to be placed in the opening 14, and the up-and-down movement of the push rod 6 in the opening 14 is facilitated.

The working principle is as follows: when the teaching device for demonstrating the electromagnetic induction phenomenon is used, the connecting wire 10 on the first coil 8 and the second coil 9 is communicated with the ammeter 11, then, the pushing rod 6 is pushed left and right by hand, the pushing rod 6 moves left and right in the sliding opening 4 through the sliding head 5 and the bearing 15, and the first coil 8 and the second coil 9 cut the magnetic lines of force from the U-shaped magnet 12, at this time, the ammeter 11 displays the current, then, the pushing rod 6 is pulled up and down, the pushing rod 6 drives the U-shaped magnet 12 to move up and down through the opening 14 in the sliding head 5, at this time, the ammeter 11 does not display the current, then, after disconnecting the connection line 10 connecting the first coil 8 or the second coil 9 to the ammeter 11, and repeating the above steps, a series of operations of the teaching apparatus for demonstrating the electromagnetic induction phenomenon have been completed, and contents not described in detail in this specification belong to the prior art well known to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a teaching equipment for demonstrating electromagnetic induction phenomenon, includes teaching equipment main part (1), connecting wire (10), ampere meter (11), U type magnet (12) and line hole (13), its characterized in that: a demonstration table (2) is arranged on the teaching equipment main body (1), a protective cover (3) is fixed on the upper end of the demonstration table (2) through a bolt, a sliding opening (4) is formed at the top end of the protective cover (3), a sliding head (5) is inserted into the sliding opening (4), a bearing (15) is arranged at the lower part of the sliding head (5), and a push rod (6) is inserted in an opening (14) in the sliding head (5), and the lower end of the push rod (6) is fixed with a U-shaped magnet (12), the front side and the rear side of the demonstration table (2) below the sliding port (4) are welded with supporting columns (7), and the supporting columns (7) at the front side and the rear side are respectively wound with a first coil (8) and a second coil (9), and the first coil (8) and the second coil (9) are both electrically connected with the ammeter (11) through the connecting wire (10) and the wire hole (13).

2. Teaching device for demonstrating the phenomenon of electromagnetic induction, according to claim 1, characterized in that: the protective cover (3) is made of transparent toughened glass, and the height inside the protective cover (3) is larger than that of the support column (7).

3. Teaching device for demonstrating the phenomenon of electromagnetic induction, according to claim 1, characterized in that: the sliding opening (4) is positioned in the middle of the upper part of the protective cover (3), and the sliding opening (4) penetrates through the top of the protective cover (3).

4. Teaching device for demonstrating the phenomenon of electromagnetic induction, according to claim 1, characterized in that: the shape structure of the sliding head (5) is a boss structure, the interior of the sliding head (5) is a hollow structure, and the diameter of the upper part of the sliding head (5) is larger than that of the lower part of the sliding head.

5. Teaching device for demonstrating the phenomenon of electromagnetic induction, according to claim 1, characterized in that: the distance between the inner side leads of the first coil (8) and the second coil (9) is smaller than the width of the inner side of the U-shaped magnet (12).

6. Teaching device for demonstrating the phenomenon of electromagnetic induction, according to claim 1, characterized in that: the opening (14) penetrates through the sliding head (5), and the diameter of the opening (14) is larger than that of the push rod (6).