CN211455040U

CN211455040U - Static presentation device for physical teaching

Info

Publication number: CN211455040U
Application number: CN201922488710.4U
Authority: CN
Inventors: 潘海山; 贝鸿; 樊雪戈; 边腾飞; 王凌君
Original assignee: Xi'an Far East No1 Middle School
Current assignee: Xi'an Far East No1 Middle School
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-08
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a static demonstration device for physics teaching, which comprises a box body, wherein the box body is provided with an induction structure and a demonstration structure; the sensing structure includes: a first conductive rod, a first conductor block, a first insulating rod, a second conductor block, a second insulating rod and a third conductor block; first conducting rod cartridge is wall on the box, first conductor block is connected in first conducting rod one end, first insulator spindle cartridge is in box lateral wall face, second conductor block is connected in first insulator spindle one end, the second insulator spindle cartridge is in box lateral wall face, the third conductor block is connected in second insulator spindle one end, first conductor block corresponds to second conductor block, the utility model relates to a physics experiment teaching technical field, simple structure, portable, shared space is little, can demonstrate simultaneously and attract and repel, and the audio-visual experimental phenomenon of observing of the student of being convenient for guarantees teaching efficiency and teaching effect.

Description

Static presentation device for physical teaching

Technical Field

The utility model relates to a physics experiment teaching technical field specifically is a static presentation device is used in physics teaching.

Background

Electrostatic induction is the phenomenon in which charges in a conductor are redistributed in the conductor under the action of an external electric field. When a charged object and an uncharged conductor approach each other, the charges inside the conductor are redistributed due to the interaction between the charges, the heterogeneous charges are attracted to the vicinity of the charged object, and the homogeneous charges are repelled to the other end of the conductor away from the charged object. The basic experiment of static electricity is a basic experiment describing a basic physical phenomenon in electrostatics.

Traditional static demonstration needs demonstration personnel manual friction glass stick or rubber stick to rub, later adsorbs light object demonstration electrostatic absorption effect, and this kind of mode only can show the attraction, still need use the electroscope if need show repulsion mutually, unable audio-visual observation experiment phenomenon, carries out demonstration once and need carry multiple experimental apparatus, and is inconvenient to carry, influences the teaching effect.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides an electrostatic demonstration device for physical teaching has solved current traditional electrostatic demonstration and needs demonstration personnel manual friction glass stick or rubber stick to rub, later adsorb light little object demonstration electrostatic adsorption effect, and this kind of mode only can show attraction, still need use the electroscope if need show repulsion, and unable audio-visual observation experiment phenomenon carries out demonstration once and need carry multiple experimental apparatus, and is inconvenient to carry, influences the problem of teaching effect.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a static demonstration device for physics teaching comprises a box body, wherein an induction structure and a demonstration structure are arranged on the box body;

the sensing structure includes: a first conductive rod, a first conductor block, a first insulating rod, a second conductor block, a second insulating rod and a third conductor block;

the first conducting rod is inserted into the upper wall surface of the box body, the first conductor block is connected to one end of the first conducting rod, the first insulating rod is inserted into the side wall surface of the box body, the second conductor block is connected to one end of the first insulating rod, the second insulating rod is inserted into the side wall surface of the box body, the third conductor block is connected to one end of the second insulating rod, and the first conductor block corresponds to the second conductor block.

Preferably, the demonstration structure comprises: the device comprises a first support, a first conductive ball, a second conductive rod, a pair of first foils with the same structure, a second support, a second conductive ball, a third conductive rod and a second foil;

the first support is fixed on the lower wall surface of the inner side of the box body, the first conductive ball is mounted on the upper wall surface of the first support, the second conductive rod is fixed at the lower end of the first conductive ball, the pair of first foils is movably mounted at the lower end of the first conductive rod, the second support is fixed on the lower wall surface of the inner side of the box body, the second conductive ball is mounted on the upper wall surface of the second support, the third conductive rod is fixed at the lower end of the second conductive ball, and the second foils are movably mounted at the lower end of the third conductive rod.

Preferably, the box, the first insulating rod and the second insulating rod are of a wood structure.

Preferably, a pair of connecting rods with the same structure is inserted into the side wall surface of the box body, and the pair of connecting rods corresponds to the first conductive ball and the second conductive ball.

Preferably, the upper wall surface of the box body is provided with a handle.

Preferably, a pair of L-shaped through holes with the same structure are symmetrically formed in the side wall surface of the box body.

Advantageous effects

The utility model provides a static presentation device for physical teaching possesses following beneficial effect: traditional static demonstration needs demonstration personnel manual friction glass stick or rubber stick to rub, later adsorbs light object demonstration electrostatic absorption effect, and this kind of mode only can show the attraction, still need use the electroscope if need show repulsion mutually, unable audio-visual observation experiment phenomenon, carries out demonstration once and need carry multiple experimental apparatus, and is inconvenient to carry, influences the teaching effect.

Drawings

Fig. 1 is the utility model relates to a static presentation device for physical teaching's structural schematic.

Fig. 2 is the utility model relates to a static presentation device's for physical teaching sectional structure schematic is looked mainly.

Fig. 3 is the utility model relates to a static presentation device's for physical teaching sectional structure schematic diagram is looked to the left side.

In the figure: 1-a box body; 2-a first conductive rod; 3-a first conductor block; 4-a first insulating rod; 5-second conductor block; 6-a second insulating rod; 7-third conductor block; 8-a first scaffold; 9-first conductive balls; 10-a second conductive rod; 11-a first foil; 12-a second scaffold; 13-a second conductive ball; 14-a third conductive rod; 15-a second foil; 16-a connecting rod; 17-a handle.

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. 1-3, the present invention provides a technical solution: an electrostatic demonstration device for physics teaching.

Example (b): a static demonstration device for physics teaching comprises a box body 1, wherein an induction structure and a demonstration structure are arranged on the box body 1;

wherein, it is required to be noted that: the box body 1 is mainly used for installing an induction structure and a demonstration structure, and preferably, a handle 17 is arranged on the upper wall surface of the box body 1, so that the device can be moved conveniently;

the sensing structure includes: a first conductor bar 2, a first conductor block 3, a first insulating bar 4, a second conductor block 5, a second insulating bar 6, and a third conductor block 7; the first conductor block 2 is inserted into the upper wall surface of the box body 1, the first conductor block 3 is connected to one end of the first conductor block 2, the first insulating rod 4 is inserted into the side wall surface of the box body 1, the second conductor block 5 is connected to one end of the first insulating rod 4, the second insulating rod 6 is inserted into the side wall surface of the box body 1, the third conductor block 7 is connected to one end of the second insulating rod 6, and the first conductor block 3 corresponds to the second conductor block 5.

Wherein, it is required to be noted that: the demonstrator presses the charged object close to the first conductive rod 2, the first conductive block 3 induces charges opposite to the charged object, at the moment, the second conductive block 5 is in contact with the third conductive block 7, the second conductive block 5 induces charges same as the charged object, the third conductive block 7 induces charges opposite to the second conductive block 5, as preferable, further, a pair of L-shaped through holes with the same structure are symmetrically formed in the side wall surface of the box body 1, the demonstrator can demonstrate by moving the first insulating rod 4 and the second insulating rod 6, as preferable, further, the box body 1, the first insulating rod 4 and the second insulating rod 6 are of wood structures.

In the implementation process, the demonstration structure can preferably adopt the following structure, which mainly comprises the following steps: the structure of the conductive electrode comprises a first support 8, a first conductive ball 9, a second conductive rod 10, a pair of first foils 11 with the same structure, a second support 12, a second conductive ball 13, a third conductive rod 14 and a second foil 15; the first support 8 is fixed on the lower wall surface of the inner side of the box body 1, the first conductive ball 9 is installed on the upper wall surface of the first support 8, the second conductive rod 10 is fixed on the lower end of the first conductive ball 9, the pair of first foils 11 is movably installed at the lower end of the first conductive rod 2, the second support 12 is fixed on the lower wall surface of the inner side of the box body 1, the second conductive ball 13 is installed on the upper wall surface of the second support 12, the third conductive rod 14 is fixed at the lower end of the second conductive ball 13, and the second foils 15 is movably installed at the lower end of the third conductive rod 14.

Wherein, it is required to be noted that: a first support 8 for fixing a first conductive ball 9, a second support 12 for fixing a second conductive ball 13, moving the first insulating rod 4, the first insulating rod 4 driving the second conductor block 5 to leave the third conductor block 7, electric charges being held on the second conductor block 5 and the third conductor block 7, the second conductive block being in contact with the first conductive ball 9 while a pair of first foils 11 induce electric charges opposite to the first conductive ball 9 through the second conductive rod 10, the like electric charges repel, the pair of first foils 11 are separated, subsequently, moving the second insulating rod 6, the second insulating rod 6 driving the third conductor block 7 to move so that the third conductor block 7 is in contact with the second conductive ball 13, the second conductive ball 13 induces electric charges opposite to the third conductor block 7, the second foils 15 induce electric charges opposite to the second conductive ball 13 through the third conductive rod 14, and the second foils 15 induce electric charges opposite to the pair of first foils 11, preferably, a pair of connecting rods 16 with the same structure are inserted on the side wall of the box body 1, the pair of connecting rods 16 correspond to the first conductive balls 9 and the second conductive balls 13, the connecting rods 16 are held by hands, and the connecting rods 16 are pushed until the connecting rods 16 contact the first conductive balls 9 and the second conductive balls 13, so that the pair of first foils 11 and the second foils 15 are restored to the original positions for the next experiment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The static demonstration device for the physics teaching comprises a box body (1), and is characterized in that an induction structure and a demonstration structure are arranged on the box body (1);

the sensing structure includes: a first conductive rod (2), a first conductor block (3), a first insulating rod (4), a second conductor block (5), a second insulating rod (6) and a third conductor block (7);

the first conducting rod (2) is inserted into the upper wall surface of the box body (1), the first conductor block (3) is connected to one end of the first conducting rod (2), the first insulating rod (4) is inserted into the side wall surface of the box body (1), the second conductor block (5) is connected to one end of the first insulating rod (4), the second insulating rod (6) is inserted into the side wall surface of the box body (1), the third conductor block (7) is connected to one end of the second insulating rod (6), and the first conductor block (3) corresponds to the second conductor block (5).

2. The static electricity demonstration apparatus for physical education as claimed in claim 1 wherein the demonstration structure comprises: the device comprises a first support (8), a first conductive ball (9), a second conductive rod (10), a pair of first foils (11) with the same structure, a second support (12), a second conductive ball (13), a third conductive rod (14) and a second foil (15);

the first support (8) is fixed on the inner lower wall surface of the box body (1), the first conductive balls (9) are mounted on the upper wall surface of the first support (8), the second conductive rods (10) are fixed at the lower ends of the first conductive balls (9), a pair of first foils (11) are movably mounted at the lower ends of the first conductive rods (2), the second support (12) is fixed on the inner lower wall surface of the box body (1), the second conductive balls (13) are mounted on the upper wall surface of the second support (12), the third conductive rods (14) are fixed at the lower ends of the second conductive balls (13), and the second foils (15) are movably mounted at the lower ends of the third conductive rods (14).

3. The static electricity demonstration device for physical education as claimed in claim 1 wherein the box body (1), the first insulation rod (4) and the second insulation rod (6) are of wood structure.

4. The static electricity demonstration device for physics education as claimed in claim 1 or 2 characterized in that a pair of links (16) with the same structure are inserted on the side wall of the box body (1), and a pair of the links (16) corresponds to the first conductive ball (9) and the second conductive ball (13).

5. The static electricity demonstration device for physics teaching according to claim 1 is characterized in that the handle (17) is arranged on the upper wall surface of the box body (1).

6. The static electricity demonstration device for physics teaching of claim 1 characterized in that, the box (1) lateral wall face symmetry is seted up a pair of L shape through-hole that the structure is the same.