1. The omnibearing magnetic field display device is characterized by comprising a base and a bracket arranged on the base, wherein a fixed seat is arranged on the bracket, the top surface of the fixed seat is horizontal, and the bottom surface of the fixed seat is arc-shaped, a round hole groove is formed in the top of the fixed seat, the central line of the round hole groove and the central line of the fixed seat are coaxially arranged, slots are formed in two sides of the round hole groove, columnar magnets are arranged in the round hole groove, display seats are arranged on two sides of each columnar magnet, inserting protrusions are arranged at the bottom of each display seat and are inserted into the slots, a plurality of display seats are arranged on two sides of the round hole groove in a clinging mode, a spherical cover is arranged at the top of each columnar magnet, a circle is formed among the cross section of the spherical cover, the side surface of each display seat and the side surface of the fixed seat, and the spherical cover, each display seat and the fixed seat are acrylic shells and castor oil filled in the shells, dark magnetic powder is arranged in the castor oil.

2. The omni-directional magnetic field display device according to claim 1, wherein the display base and the fixing base are provided with two vertically arranged cavities, the cavities are filled with castor oil, dark magnetic powder is arranged in the castor oil, and the cavities are arranged on two sides of the slot.

3. The omni-directional magnetic field display device according to claim 2, wherein the fixing base is provided with an auxiliary fixing base, the auxiliary fixing base is arranged in a fan shape, the top of the auxiliary fixing base and the side surface close to the fixing base are horizontal planes, the top of the auxiliary fixing base is provided with an auxiliary slot, and the auxiliary slot is provided with a plurality of display bases.

4. The omni-directional magnetic field display device according to claim 3, wherein a connecting plate is disposed on a side surface of the auxiliary fixing base, a connecting column is disposed on an end of the connecting plate away from the auxiliary fixing base, and a connecting groove matched with the connecting column and the connecting plate is disposed on the fixing base.

5. The omni-directional magnetic field display device according to claim 4, wherein the top of the display base is provided with a groove, and the bottom of the spherical cover is provided with a protrusion matching with the groove.

6. The omni-directional magnetic field display device according to claim 5, wherein the base is provided with a turntable, and the bracket is provided on the turntable.

7. The omni-directional magnetic field display device according to claim 6, wherein a multimeter is provided on the base.

8. The omni-directional magnetic field display device according to claim 7, wherein the spherical cap is a three-quarter sphere.

Background

Magnetic fields are a physical concept, meaning fields that transmit the action of magnetic forces between objects. The magnetic field is a special invisible and untouchable substance, is not composed of atoms or molecules, but objectively exists. The magnetic field has the radiation characteristics of a wave particle. The magnetic field exists around the magnets, and the interaction between the magnets is mediated by the magnetic field, so that the two magnets can act without contact. Current, moving charge, magnets or a special form of matter present in the space surrounding the changing electric field. Since the magnetism of a magnet is derived from an electric current, which is the movement of an electric charge, in general terms, a magnetic field is generated by the change in the moving charge or electric field. Considering from the modern physics point of view, the ultimate components of a substance that can form a charge are only electrons (with a unit negative charge) and protons (with a unit positive charge), so the negative charge is the point object with the excess electrons, and the positive charge is the point object with the excess protons. The true field source of the moving charge-generating magnetic field is the magnetic field generated by the moving electrons or moving protons. For example, the magnetic field generated by the current is the magnetic field generated by the electrons moving in the wire.

Electromagnetic induction is one of the most important learners of high school physics knowledge, but because of the invisibility of a magnetic field, many students always have hard back and hard memory when understanding the magnetic field, the learning mode can achieve the purpose of learning, but has low efficiency, and in high school with heavy learning task, the students are easy to have disgusting emotion, so that how to effectively show the magnetic field to the students improves the learning efficiency and fun of the students, and the students are more loved in physics.

Disclosure of Invention

Aiming at the technical problems existing in the magnetic field understanding, the invention provides the omnibearing magnetic field display device which is reasonable in design, simple in structure, convenient to process and capable of effectively displaying the magnetic field.

In order to achieve the above object, the invention provides an omnidirectional magnetic field display device, which comprises a base and a bracket arranged on the base, wherein the bracket is provided with a fixed seat, the top surface of the fixed seat is horizontal, the bottom surface of the fixed seat is arc-shaped, the top of the fixed seat is provided with a round hole groove, the central line of the round hole groove and the central line of the fixed seat are coaxially arranged, two sides of the round hole groove are provided with slots, a columnar magnet is arranged in the round hole groove, two sides of the columnar magnet are provided with display seats, the bottom of the display seats is provided with an inserting bulge, the inserting bulge is inserted into the slots, two sides of the round hole groove are provided with a plurality of display seats which are arranged in a close fit manner, the top of the columnar magnet is provided with a spherical cover, and the section of the spherical cover, the side surface of the display seats and the side surface of the fixed seat form a round shape, the spherical cover, the display seat and the fixing seat are made of acrylic shells and castor oil filled in the shells, and dark magnetic powder is arranged in the castor oil.

As preferred, show seat and fixing base and all be provided with the cavity of two vertical settings, the cavity intussuseption is filled with castor oil, be provided with dark magnetic powder in the castor oil, the cavity sets up the both sides at the slot.

Preferably, be provided with supplementary fixing base on the fixing base, supplementary fixing base is fan-shaped setting, the top of supplementary fixing base and the side of being close to the fixing base are the horizontal plane, the top of supplementary fixing base is provided with supplementary slot, be provided with a plurality of on the supplementary slot and show the seat.

Preferably, a connecting plate is arranged on the side face of the auxiliary fixing seat, a connecting column is arranged at one end, away from the auxiliary fixing seat, of the connecting plate, and a connecting groove matched with the connecting column and the connecting plate is formed in the fixing seat.

Preferably, the top of the display seat is provided with a groove, and the bottom of the spherical cover is provided with a bulge matched with the groove.

Preferably, the base is provided with a turntable, and the support is arranged on the turntable.

Preferably, a multimeter is arranged on the base.

Preferably, the spherical cap is a three-quarter sphere.

Compared with the prior art, the invention has the advantages and positive effects that,

1. the invention provides an omnibearing magnetic field display device, which effectively realizes omnibearing display of a magnetic field by utilizing acrylic of transparent materials, matching with castor oil and deep magnetic powder and matching with a fixing seat, a display seat, a spherical cover and an auxiliary fixing seat which are integrally arranged in a circular shape according to the characteristics of the magnetic field.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic structural view of an omnidirectional magnetic field display device provided in embodiment 1;

fig. 2 is a schematic structural diagram of the omnidirectional magnetic field display device with the spherical cover removed according to embodiment 1;

fig. 3 is a schematic structural view of the omnidirectional magnetic field display device provided in embodiment 1 with the spherical cover and a part of the display base removed;

fig. 4 is a schematic structural view of the omnidirectional magnetic field display device provided in embodiment 1 with the spherical cover and the display base removed;

fig. 5 is a schematic structural diagram of the fixing base and the base provided in embodiment 1;

fig. 6 is a schematic structural view of an auxiliary fixing seat provided in embodiment 1;

fig. 7 is a top view of the auxiliary fixing base provided in embodiment 1;

FIG. 8 is an exploded view of a single-sided display mount provided in example 1;

fig. 9 is a front view of the spherical cap provided in embodiment 1;

FIG. 10 is a sectional view of a filling member for connecting grooves provided in example 1

In the above figures, 1, a base; 11. a support; 12. a universal meter; 13. a turntable; 2. a fixed seat; 21. a slot; 22. connecting grooves; 23. connecting groove filling pieces; 24. a circular hole groove; 3. a display base; 31. inserting and connecting the bulges; 32. a groove; 4. a spherical cover; 41. a protrusion; 5. a cavity; 6. an auxiliary fixing seat; 61. a connecting plate; 62. connecting columns; 63. an auxiliary slot; 7. a columnar magnet.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 10, this embodiment is directed to solve the problem of low efficiency of schools caused by abstraction problems in the existing high school physical magnetic field concept learning, and for this purpose, the omni-directional magnetic field display device provided in this embodiment includes a base 1 and a bracket 11 disposed on the base 1, the base 1 is disposed in a flat rectangular parallelepiped box shape, the bracket 11 is two obliquely disposed upright posts, a fixing base 2 is disposed at an end of the bracket 11, when considering that a magnetic field diverges and is disposed from one pole to the other, the best display is a sphere, but the sphere cannot be viewed from the inside, in order to see the magnetic field more clearly, in this embodiment, a top surface of the fixing base 2 is disposed horizontally, a bottom surface thereof is disposed in an arc shape, which is like a circular disk with a part of the top cut off, a circular hole groove 24 is disposed at the top of the fixing base 2, a center line of the circular hole groove 24 is disposed coaxially with a center line of the fixing base 2, the columnar magnet 7 is arranged in the circular hole groove 24, so that the columnar magnet 7 is positioned at the center of the fixed seat 2, if the whole display device is regarded as a ball, the columnar magnet 7 is positioned at the center shaft, and the height of the columnar magnet is smaller than the diameter, so that the arc formed by the magnetic field can be understood more.

In order to display the magnetic field on both sides of the columnar magnet 7, slots 21 are provided on both sides of the circular hole slot 24, the display seats 3 are arranged on two sides of the columnar magnet 7, the bottom of the display seat 3 is provided with an inserting bulge 31, the inserting bulge 31 is inserted into the slot 21, two sides of the round hole groove 24 are provided with a plurality of display seats 3 which are arranged in a clinging manner, in the embodiment, one side of the circular hole groove 24 is provided with one display seat 3, the other side is provided with four display seats 3 which are arranged in a close contact manner, the sum of the area of a single display seat 3 and the area of the other four display seats 3 is the same, with the object of this arrangement, the individual display stands 3 facilitate the display of the magnetic field, while the combined display stands 3 can be easily assembled by pulling out the parts, under the condition of magnetic field display at the other side, the principle of power generation is analyzed by cutting magnetic induction lines, and the change of the magnetic field intensity and the complementary interference of the magnetic field can be conveniently understood by inserting the combined display seat 3 at different positions.

In order to clearly show the principle of the peripheral divergence of the magnetic field, the spherical cover 4 is arranged on the top of the columnar magnet 7, the bottom surface of the spherical cover 4 is a horizontal plane, and the top is a spherical surface, so that the divergent magnetic field can be better displayed on the top, and a whole circle is formed among the section of the spherical cover 4, the side surface of the display seat 3 and the side surface of the fixed seat 2, so that the divergence of the magnetic field can be better observed.

Certainly, in order to display the magnetic field, a substance which can be influenced by the magnetic field is needed, and for this reason, the spherical cover 4, the display seat 3 and the fixing seat 2 are all made of acrylic shells and castor oil filled in the shells, and dark magnetic powder is arranged in the castor oil. Dark magnetic powder can be in the floating state in castor oil, and receives the influence of magnetic field, and dark magnetic powder can distribute along the magnetic field, and then effectual shows the magnetic field.

Consider slot 21 and the protruding 31 setting of grafting, if set up castor oil in its top, then influence shows, for this reason, in this embodiment, show that seat 3 and fixing base 2 all are provided with two vertical cavity 5 that set up, are filled with castor oil in cavity 5, are provided with dark magnetic powder in the castor oil, and cavity 5 sets up the both sides at slot 21. Like this, set up cavity 5 in the both sides of slot 21, the observation of dark magnetic powder just can't be influenced in the cooperation of slot 21 and grafting arch 31, and then improves observation effect. And spherical cover 4 is then set up to three fourths sphere, does the cutting at spherical cover 4's front end promptly, like this, except the top surface, spherical cover 4 can also show two sides, simultaneously, two cavities 5 that also set up on spherical cover 4, one is the spherical cavity 5 that is full of whole spherical part, like this, can see clearly the divergence of magnetic field, and another is fan-shaped setting, like this, the camber line of observation magnetic field that can be better.

In order to make the demonstration more comprehensive, in this embodiment, be provided with supplementary fixing base 6 at the back of fixing base 2, supplementary fixing base 6 is fan-shaped setting, and specifically speaking, the top of supplementary fixing base 6 and the side that is close to fixing base 2 are the horizontal plane, are provided with supplementary slot 63 at the top of supplementary fixing base 6, are provided with a plurality of on the supplementary slot 63 and show seat 3. Therefore, the display surface can realize the display of the T-shaped surface except the spherical cover 4 on the top surface, thereby facilitating better understanding.

Considering that although the spherical cap 4 shows a divergence, it may also cause students to understand the middle part, for this purpose, a connecting plate 61 is provided on the side of the auxiliary fixing base 6, a connecting post 62 is provided on the end of the connecting plate 61 away from the auxiliary fixing base 6, and a connecting groove 22 for cooperating with the connecting post 62 and the connecting plate 61 is provided on the fixing base 2. Like this, insert spliced pole 62 in connecting groove 22, spliced pole 62 can the rotation of small range, thus, just can make the student observe the magnetic field of non-right angle face, in order to realize the fixed between supplementary fixing base 6 and fixing base 2, connecting plate 61 also need insert in connecting groove 22, for this reason, in this embodiment, be provided with connecting groove 22 filler 23 in connecting groove 22, connecting groove 22 filler 23 is made for elastic material, its the innermost is circular cross-section, and the initial end is two thirds circular also, be provided with the salient angle in the outside of initial end, be used for guaranteeing the rotation of spliced pole 62, like this, when needs fixed supplementary fixing base 6, inwards make strength one can.

In order to fix the spherical cover 4, a groove 32 is provided at the top of the display base 3, and a protrusion 41 matching with the groove 32 is provided at the bottom of the spherical cover 4. Such setting, conveniently form integrative structure setting with fixing base 2, supplementary fixing base 6, display seat 3 and spherical cover 4.

In order to facilitate the students to perform multi-angle penetration, a rotary table 13 is arranged on the base 1, and a support 11 is arranged on the rotary table 13. The rotary disk 13 is a disk, a rotary shaft is arranged at the bottom of the rotary disk, a connecting pipe is arranged on the base 1, the rotary shaft is inserted into the connecting pipe, and the diameter of the rotary shaft is slightly smaller than that of the connecting pipe, so that the rotation of the whole display part can be realized.

The setting of carousel 13 not only makes things convenient for the student of different positions to observe different angles, also conveniently does the motion of cutting magnetic induction line, for this reason, is provided with universal meter 12 on base 1 in order to know electromagnetic technology. The back of the base 1 is provided with the wire connector, so that electromagnetic induction can be known by using an iron rod with a lead, and the interest of learning physics is further improved.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.