CN214068101U

CN214068101U - A teaching aid for friction stick experiment

Info

Publication number: CN214068101U
Application number: CN202120190258.8U
Authority: CN
Inventors: 靳延
Original assignee: Hangzhou New Vision Yangguang Technology Co Ltd
Current assignee: Hangzhou New Vision Yangguang Technology Co Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-08-27
Anticipated expiration: 2031-01-22

Abstract

The utility model provides a teaching aid for friction stick experiment, belong to the teaching aid field, it has been solved current phenomenon of repetitious or attraction for the convenience student observes, an urgent need for a problem that is used for the teaching aid of friction stick experiment, including the friction stick, a base for supporting the support frame of friction stick and being used for erection bracing frame, the support frame includes the bracing piece and sets up in the supporting seat at bracing piece top, the supporting seat top is provided with the standing groove that is used for supplying the friction stick to place, the bottom of supporting seat is provided with the spliced pole, the top of bracing piece is provided with the inserting groove, the spliced pole is arranged in inserting the inserting groove, the supporting seat can rotate for the bracing piece. The utility model discloses can make things convenient for the student to rub the stick experiment.

Description

A teaching aid for friction stick experiment

Technical Field

The utility model belongs to the teaching aid field, in particular to a teaching aid for friction stick experiment.

Background

In the middle school teaching process, the friction test of the friction bar is a common test. In the experiment, one friction rod is rubbed by different materials such as silk or fur, the friction rod can have positive charges or negative charges after being rubbed, and when other objects with positive charges or negative charges are close to the friction rod, the friction rod can be close to or far away from the objects due to the existence of mutual attraction force or repulsion force. In order to facilitate students to observe the mutual repulsion or attraction, a teaching aid for friction bar experiments is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a teaching aid for friction stick experiment to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a teaching aid for friction stick experiment, includes the friction stick for support the support frame of friction stick and be used for erection bracing frame's base, the support frame include the bracing piece and set up in the supporting seat at bracing piece top, the supporting seat top is provided with and is used for supplying the standing groove that the friction stick was placed, the bottom of supporting seat is provided with the plug-in column, the top of bracing piece is provided with the inserting groove, the plug-in column be arranged in inserting the inserting groove, the supporting seat can rotate for the bracing piece.

The utility model discloses a theory of operation: insert the inserting groove with the grafting post to peg graft supporting seat and bracing piece together, after supporting seat and bracing piece are pegged graft together, the supporting seat can rotate for the bracing piece, install the bracing piece on the base after that, at last will with the friction stick after the material friction such as silk, fur is violently put in the standing groove, when being close to this friction stick with article that have positive charge or negative charge, the friction stick can be close to or keep away from the article that have positive charge or negative charge, the supporting seat rotates for the bracing piece.

In the above teaching aid for friction bar experiment, the insertion column and the insertion groove are in inverted taper shape.

In the above teaching aid for friction bar experiment, the plug-in post is externally provided with a protective sleeve.

In the above-mentioned teaching aid that is used for friction stick experiment, the standing groove be the arc.

In the foretell teaching aid that is used for the friction stick experiment, the quantity of standing groove is two, the standing groove is located the both sides of supporting seat respectively.

In the foretell teaching aid that is used for friction stick experiment, be provided with the jack on the base, the jack is used for supplying the bottom of bracing piece to insert.

In the foretell teaching aid that is used for the friction stick experiment, the bottom of supporting seat is provided with subtracts heavy groove.

In the foretell teaching aid that is used for the friction stick experiment, the supporting seat is provided with the erection column that is used for installing the post of pegging graft.

In the above-mentioned teaching aid for friction stick experiment, the spliced pole is connected with the spliced pole, installation passageway has been seted up to the erection column, installation passageway and spliced pole interference fit.

In the above teaching aid for friction bar experiment, the mounting post is externally provided with a convex rib.

Compared with the prior art, the utility model discloses can make things convenient for the student to rub excellent experiment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the support base of the present invention;

FIG. 3 is a schematic view of the explosion structure at the bottom of the supporting seat of the present invention;

FIG. 4 is a schematic sectional view of the support base of the present invention;

fig. 5 is a schematic structural view of the support rod of the present invention;

fig. 6 is a schematic structural diagram of the base of the present invention.

In the figure, 1, a rubbing stick; 2. a support frame; 3. a base; 4. a support bar; 5. a supporting seat; 6. a placement groove; 7. inserting the column; 8. inserting grooves; 9. a protective sleeve; 10. a weight reduction groove; 11. mounting a column; 12. connecting columns; 13. installing a channel; 14. a rib is protruded; 15. and (4) inserting the jack.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-6, a teaching aid for friction stick experiment, including friction stick 1, a base 3 for supporting support frame 2 of friction stick 1 and being used for erection bracing frame 2, support frame 2 includes bracing piece 4 and sets up in the supporting seat 5 at bracing piece 4 top, 5 tops of supporting seat are provided with the standing groove 6 that is used for supplying friction stick 1 to place, the bottom of supporting seat 5 is provided with plug-in column 7, the top of bracing piece 4 is provided with inserting groove 8, plug-in column 7 is arranged in inserting groove 8, supporting seat 5 can rotate for bracing piece 4.

In more detail, the plug-in post 7 and the plug-in groove 8 are in the shape of an inverted taper. The end of the plug-in post 7 far away from the supporting seat 5 is a sharp end. This arrangement facilitates alignment and insertion of the plug posts 7 into the plug slots 8. Inserting groove 8 is the toper of falling the point, and inserting groove 8 and inserting post 7 match each other, and inserting groove 8 and inserting post 7 equipment back, supporting seat 5 is difficult for rocking.

In further detail, a protective sleeve 9 is arranged outside the splicing column 7. The protective sleeve 9 is sleeved outside the plug-in column 7 to prevent the tapered plug-in column 7 from scratching the skin.

In more detail, the placing groove 6 is arc-shaped. The arc-shaped placing groove 6 is suitable for the cylindrical friction rod 1, so that the friction rod 1 is not easy to fall off from the supporting seat 5.

More specifically, the number of the placing grooves 6 is two, and the placing grooves 6 are respectively located on both sides of the supporting base 5. Two standing grooves 6 carry on spacingly simultaneously to friction stick 1 for it drops from supporting seat 5 not easily to rub stick 1.

In more detail, the base 3 is provided with an insertion hole 15, and the insertion hole 15 is used for inserting the bottom of the support rod 4. The bottom of the supporting rod 4 is inserted into the inserting hole 15, so that the supporting rod 4 is installed on the base 3, the structure is simple, and the installation is convenient.

In more detail, the bottom of the support base 5 is provided with a weight-reducing groove 10. This set up the purpose in order to alleviate the weight of supporting seat 5 to make when friction stick 1 atress needs rotate, friction stick 1 can drive supporting seat 5 and rotate together, is favorable to the student to observe experimental phenomenon, and can not appear the too big unable pivoted condition of friction stick 1 that leads to of supporting seat 5 quality.

In further detail, the support base 5 is provided with a mounting post 11 for mounting the bayonet post 7. The inserting column 7 is connected with a connecting column 12, the mounting column 11 is provided with a mounting channel 13, and the mounting channel 13 is in interference fit with the connecting column 12. The connecting column 12 and the inserting column 7 are integrally arranged, the connecting column 12 is inserted into the mounting channel 13 and is in interference fit with the mounting channel 13, and the inserting column 7 is mounted at the bottom of the supporting seat 5 through the connecting column 12 and the mounting column 11.

In more detail, a rib 14 is arranged outside the mounting post 11. The convex rib 14 has two functions, the first function is to play the role of a reinforcing rib, and the strength of the mounting column 11 is improved; the second is the effect of playing with protective sheath 9 joint, and protective sheath 9 cup joints outside inserting post 7, and protective sheath 9's upper portion and erection column 11 joint prevent that protective sheath 9 from dropping.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although a large number of terms are used here more, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a teaching aid for friction stick experiment, a serial communication port, including friction stick (1) for support frame (2) of friction stick (1) and be used for base (3) of erection bracing frame (2), support frame (2) include bracing piece (4) and set up in supporting seat (5) at bracing piece (4) top, supporting seat (5) top is provided with standing groove (6) that are used for supplying friction stick (1) to place, the bottom of supporting seat (5) is provided with plug column (7), the top of bracing piece (4) is provided with inserting groove (8), plug column (7) be arranged in inserting groove (8), supporting seat (5) can rotate for bracing piece (4).

2. A friction rod experiment teaching aid according to claim 1, wherein the plug-in post (7) and the plug-in groove (8) are in the shape of an inverted pointed cone.

3. A teaching aid for friction rod experiments according to claim 1, characterized in that a protective sleeve (9) is arranged outside the plug-in post (7).

4. A friction stick experiment teaching aid according to claim 1, wherein the holding groove (6) is arc-shaped.

5. A friction stick experiment teaching aid according to claim 1, wherein the number of the placing grooves (6) is two, and the placing grooves (6) are respectively positioned at two sides of the supporting seat (5).

6. A teaching aid for friction rod experiments according to claim 1, characterized in that the base (3) is provided with a socket (15), and the socket (15) is used for inserting the bottom of the support rod (4).

7. A friction bar experiment teaching aid according to claim 1, wherein the bottom of the support base (5) is provided with weight-reducing grooves (10).

8. A teaching aid for friction rod experiments according to claim 1, characterized in that the support base (5) is provided with mounting posts (11) for mounting the plug posts (7).

9. The teaching aid for the friction bar experiment of claim 8, wherein the inserting column (7) is connected with a connecting column (12), the mounting column (11) is provided with a mounting channel (13), and the mounting channel (13) and the connecting column (12) are in interference fit.

10. A friction rod experiment teaching aid according to claim 8, wherein a rib (14) is arranged outside the mounting post (11).