CN211124645U

CN211124645U - Optical refraction demonstration device for junior middle school physics teaching

Info

Publication number: CN211124645U
Application number: CN201921214972.5U
Authority: CN
Inventors: 陈书法
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-07-28
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses an optical refraction presentation device for junior middle school physics teaching, including the base, fixed mounting has the dead lever on the roof of base, inserts on the roof of dead lever and is equipped with the movable rod, inserts on the lateral wall of dead lever and is equipped with fastening bolt, and fixed mounting has the disc on the roof of movable rod, evenly is equipped with the scale mark on the lateral wall of disc one side, and the disc is close to the axle center department of scale mark one side and installs the refraction medium, installs the laser pen on the lateral wall of disc one end. The utility model discloses when experimenting, can fixing the laser pen on the disc, can prevent that the shake from appearing in the laser pen among the experimentation to avoid the laser pen shake to cause experimental error, the position of laser pen can freely remove, thereby can select the most suitable light source incident angle, make the student can more audio-visual refraction of observing light in different mediums, improved the experiment effect, not only the installation is dismantled conveniently, can freely adjust the height of disc moreover, the practicality is strong.

Description

Optical refraction demonstration device for junior middle school physics teaching

Technical Field

The utility model relates to a teaching equipment technical field especially relates to an optical refraction presentation device for junior middle school physics teaching.

Background

When light obliquely enters another transparent medium from one transparent medium, the propagation direction generally changes, which is called light refraction, the light refraction and the light reflection are both generated at the junction of the two media, only the reflected light returns to the original medium, and the refracted light enters the other medium.

The student can learn the optical refraction when the junior middle school, and at the teaching in-process, mr mostly can let the student can more audio-visual understanding optical refraction through the mode of doing the experiment, and the optical refraction presentation device who is used for junior middle school physics teaching that has now mostly needs mr to hold the laser pen and experiment, not only operates inconveniently, and experimental error is big moreover, needs make the improvement to this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of inconvenient operation of the optical refraction demonstration device for junior middle school physics teaching in the prior art, and the optical refraction demonstration device for junior middle school physics teaching who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an optics refraction presentation device for junior middle school physics teaching, the on-line screen storage device comprises a base, fixed mounting has the dead lever on the roof of base, it is equipped with the movable rod to insert on the roof of dead lever, it is equipped with fastening bolt to insert on the lateral wall of dead lever, fixed mounting has the disc on the roof of movable rod, evenly be equipped with the scale mark on the lateral wall of disc one side, the disc is close to the axle center department of scale mark one side and installs the refraction medium, install the laser pen on the lateral wall of disc one end.

Preferably, one side of disc is equipped with the arc, fixed mounting has the installation pipe on the roof of arc, and the laser pen inserts and establish in the installation pipe, fixed mounting has the fixed plate on the lateral wall of installation pipe one side, the downside of fixed plate is equipped with splint, insert on the roof of fixed plate and be equipped with fastening screw, and fastening screw runs through fixed plate and splint and extend to the downside of splint.

Preferably, the top wall of the fixed rod is provided with a movable groove matched with the movable rod, and the fastening bolt penetrates through the inner side wall of one side of the movable groove and extends into the movable groove.

Preferably, an insert rod is fixedly mounted on an outer side wall of the refraction medium close to one side of the disk, and the insert rod penetrates through the disk and extends to the outer side of the disk.

Preferably, the top wall of the clamping plate is provided with a threaded hole which is meshed with the fastening screw.

Preferably, an arc-shaped water tank is fixedly installed on the outer side wall of one side, close to the scale marks, of the disc.

Compared with the prior art, the utility model discloses there is following beneficial effect:

1. when the experiment is carried out, the laser pen can be fixed on the disc, so that the operation is convenient, and the laser pen can be prevented from shaking in the experiment process, thereby avoiding experiment errors caused by shaking of the laser pen;

2. the position of the laser pen can be freely moved, so that the most appropriate light source incidence angle can be selected, students can observe the refraction of light in different media more intuitively, and the experimental effect is improved;

3. not only the installation is dismantled conveniently, can freely adjust the height of disc moreover, and the practicality is strong.

Drawings

Fig. 1 is a schematic front structural view of a first embodiment of an optical refraction demonstration apparatus for junior middle school physics teaching according to the present invention;

fig. 2 is a schematic side view of a first embodiment of an optical refraction demonstration apparatus for junior middle school physics teaching according to the present invention;

FIG. 3 is an enlarged view of the structure of part A of an optical refraction demonstration device for junior middle school physics teaching according to the present invention;

fig. 4 is a schematic structural diagram of a second embodiment of the optical refraction demonstration apparatus for junior middle school physics teaching according to the present invention.

In the figure: the device comprises a base 1, a fixed rod 2, a movable rod 3, a fastening bolt 4, a disc 5, scale marks 6, a refraction medium 7, an insertion rod 8, a laser pen 9, an arc-shaped plate 10, an installation pipe 11, a fixing plate 12, a fastening screw 13, a clamping plate 14 and an arc-shaped water tank 15.

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.

Example one

Referring to fig. 1-3, an optics refraction presentation device for junior middle school physics teaching, including base 1, fixed mounting has dead lever 2 on base 1's the roof, it is equipped with movable rod 3 to insert on the roof of dead lever 2, it is equipped with fastening bolt 4 to insert on the lateral wall of dead lever 2, set up the movable groove of mutually supporting with movable rod 3 on the roof of dead lever 2, fastening bolt 4 runs through the inside wall of movable groove one side and extends to the movable groove in, not only the installation is dismantled conveniently, and can freely adjust the height of movable rod 3, therefore, the clothes hanger is strong in practicability.

Fixed mounting has disc 5 on the roof of movable rod 3, evenly be equipped with scale mark 6 on the lateral wall of disc 5 one side, disc 5 is close to the axle center department of scale mark 6 one side and installs refraction medium 7, refraction medium 7 is close to fixed mounting has inserted bar 8 on the lateral wall of disc 5 one side, and inserted bar 8 runs through disc 5 and extends to the outside of disc 5, can be convenient install the dismantlement to refraction medium 7, in the experimentation, can be fast convenient change refraction medium 7 of multiple difference experiment, thereby can improve the experimental effect.

The laser pen 9 is installed on the outer side wall of one end of the disc 5, the arc-shaped plate 10 is arranged on one side of the disc 5, the mounting pipe 11 is fixedly installed on the top wall of the arc-shaped plate 10, the laser pen 9 is inserted into the mounting pipe 11, the fixing plate 12 is fixedly installed on the outer side wall of one side of the mounting pipe 11, the clamping plate 14 is arranged on the lower side of the fixing plate 12, the fastening screw 13 is inserted into the top wall of the fixing plate 12, the fastening screw 13 penetrates through the fixing plate 12 and the clamping plate 14 and extends to the lower side of the clamping plate 14, the threaded hole meshed with the fastening screw 13 is formed in the top wall of the clamping plate 14, the bottom end of the mounting pipe 11 is contacted with the outer side wall of the disc 5, the top wall of the clamping plate 14 is contacted with the outer side wall of the disc 5, the fastening screw 13 is rotated, the fastening screw 13 is meshed with the clamping, thereby avoid the shake of laser pen 9 to cause experimental error, the arc 10 can freely remove with the position of installation pipe 11 moreover to can freely remove laser pen 9's position, can select the most suitable light source incident angle, make the student can be more audio-visual observe the refraction of light in different media, improved the experiment effect.

Example two

Referring to fig. 4, on the basis of the first embodiment, the arc-shaped water tank 15 is fixedly installed on the outer side wall of the disc 5 on the side close to the scale mark 6, different transparent liquid media can be placed in the arc-shaped water tank 15, and students can visually observe the refraction of light on the scale mark 6 of the disc 5, so that the operation is convenient.

The utility model discloses in, rotate fastening bolt 4, fastening

bolt

4 and 2 threaded engagement of dead lever, thereby roll out fastening bolt 4, adjust movable rod 3 and disc 5 to suitable height, roll into the activity inslot with fastening bolt 4 again, it is fixed with movable rod 3, the bottom of installing pipe 11 and the lateral wall contact of disc 5, and the roof with splint 14 and the lateral wall contact of disc 5, rotate fastening screw 13, fastening

screw

13 and 14 threaded engagement of splint, thereby will install 11 fixed connection of pipe on the lateral wall of disc 5, insert laser pen 9 in the installation pipe 11, it can experiment to install refraction medium 7 on the lateral wall of disc 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An optical refraction presentation device for physical teaching in junior middle school, includes base (1), its characterized in that: fixed mounting has dead lever (2) on the roof of base (1), it is equipped with movable rod (3) to insert on the roof of dead lever (2), it is equipped with fastening bolt (4) to insert on the lateral wall of dead lever (2), fixed mounting has disc (5) on the roof of movable rod (3), evenly be equipped with scale mark (6) on the lateral wall of disc (5) one side, disc (5) are close to axle center department of scale mark (6) one side and install refraction medium (7), install laser pen (9) on the lateral wall of disc (5) one end.

2. An optical refraction demonstration apparatus for teaching junior middle school physics according to claim 1 wherein: one side of disc (5) is equipped with arc (10), fixed mounting has installation pipe (11) on the roof of arc (10), and laser pen (9) insert and establish in installation pipe (11), fixed mounting has fixed plate (12) on the lateral wall of installation pipe (11) one side, the downside of fixed plate (12) is equipped with splint (14), it is equipped with fastening screw (13) to insert on the roof of fixed plate (12), and fastening screw (13) run through fixed plate (12) and splint (14) and extend to the downside of splint (14).

3. An optical refraction demonstration apparatus for teaching junior middle school physics according to claim 1 wherein: the roof of dead lever (2) is seted up on the roof and is mutually supported activity groove with movable rod (3), fastening bolt (4) run through the inside wall of activity groove one side and extend to the activity inslot.

4. An optical refraction demonstration apparatus for teaching junior middle school physics according to claim 1 wherein: and the outer side wall of one side, close to the disc (5), of the refraction medium (7) is fixedly provided with an inserted rod (8), and the inserted rod (8) penetrates through the disc (5) and extends to the outer side of the disc (5).

5. An optical refraction demonstration apparatus for teaching junior middle school physics according to claim 2 wherein: the top wall of the clamping plate (14) is provided with a threaded hole which is meshed with the fastening screw (13).

6. An optical refraction demonstration apparatus for teaching junior middle school physics according to claim 1 wherein: and an arc-shaped water tank (15) is fixedly arranged on the outer side wall of one side of the disc (5) close to the scale mark (6).