CN2150599Y - Combined instrument for student learning optics and heat in middle school - Google Patents

Abstract

The utility model relates to a combined studying tool which is suitable for optics and thermology in various versions of physical teaching material in middle schools and comprises a box cover, a box holder and parts for optical experiments, wherein, the inner part of a box is provided with a miniature gas reservoir, a socket for the miniature gas reservoir, a burning spraying head, test tubes, a test-tube stand, a socket for the test-tube stand, a test-tube clamp, a rubber plug, a thermometer and a piece of semi-transparent symmetrical plane mirror. The utility model overcomes the defect of the existing optical studying tool which can not make the optical experiments and saves heating devices, such as an iron stand platform, an alcohol lamp, etc. The utility model has the advantages of simple structure, convenient carrying in a school bag and complete requirement satisfaction for teaching and extracurricular experiments, and is favorable to enhance teaching quality and the operational ability of students.

Description

Combined instrument for student learning optics and heat in middle school

The utility model relates to a kind of simple combination instruments used for education, is applicable to the teaching of junior physics optics, calorifics.

Present existing optics learning aid can only be done various Experiments of Optics.If will do calorifics laboratory, then need dispose iron stand, a cover calorifics laboratory instrument or a learning aid such as spirit lamp.Its light source of optics learning aid that has separates with projection screen, has increased some unnecessary adjustment in the experimentation, complex operation, loses time.Existing optics learning aid is done the experiment of mirror imaging rule with sheet glass usually, and object becomes the very weak picture of dual brightness through glass, the difficult position of determining picture.If adopt vacuum coating or paste the translucent level crossing of monolithic glass of reflective membrane, can make picture limpid in sight, but because the refraction image drift phenomenon that glass forms, still can't accurately determine the position of picture.

The purpose of this utility model provides a kind of simple in structure, easy operating, can do Experiments of Optics, can make the combination teaching instrument of calorifics laboratory again.

The purpose of this utility model is achieved through the following technical solutions: it is the junior middle school's optics, the calorifics combination learning aid that comprise lid, cassette holder, convex lens and traversing carriage thereof, dispersing prism, cylindrical lens, cylindrical mirror, transparent tank, slit, battery powered light sources, is provided with miniature gas storage and socket thereof, burning shower nozzle, test tube, test-tube stent and socket, rubber stopper, thermometer and test tube clamp in box; A semi-transparent symmetrical plane mirror also is housed in box.

Optics of the present utility model, calorifics laboratory part are placed in lid or the interior corresponding socket of cassette holder, are not afraid of vibration and inclination.The volume of whole learning aid is equal to or slightly less than writing case, is convenient to carry in the school bag.This combination learning aid light harvesting is learned, calorifics laboratory is an one, has not only overcome the not defective of subsidiary calorifics laboratory of existing optics learning aid, but also has saved heating arrangements such as the needed iron stand of calorifics laboratory, spirit lamp.When doing experiment, only need employ lid and the part relevant, need not employ other part and cassette holder, make operation greatly easy, the most important thing is to make the student can be primarily focused on the content, help the carrying out of classroom instruction with this experiment.This learning aid can not only satisfy the requirement of junior physics optics, calorifics classroom instruction, can also allow the student take home and do experiments out of class, helps improving the quality of teaching and developing students'ability for practice.

Below with reference to accompanying drawing the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model lid.

Fig. 2 is the structural representation of the utility model cassette holder.

With reference to attached Fig. 1 and 2, be provided with slit (9), miniature gas storage (11), test tube (15), test-tube stent (16), test tube clamp (18), thermometer (19), small electric bulb (20), rubber stopper (21), prism (22), cylinder concave, convex lens (23), (26), convex lens (24) and traversing carriage (25) thereof, cylindrical mirror (27), semi-transparent symmetrical plane mirror (28) and transparent tank (29) in the cassette holder (2).Do when testing counter the putting on the table of lid (1).Load onto two joint No.5 cells in the battery case (4).Load onto small electric bulb (20) on the lamp socket (8).A side of lid (1) is made optical bench slide rail (10), and is carved with graduated scale.The another side of lid (1) is provided with semi-transparent symmetrical plane mirror socket (6) and color line screen (7).Convex lens (24), slit (9) are inserted corresponding socket (3), the filament of the small electric bulb of electrified light emitting (20) is positioned at convex lens (24) focus and slightly locates on the upper side, obtain reflected optical path diffuse reflection bright line on the white screen (5), can be used to all experiments of carrying out demonstrating on the optical disk.Dress LFG body in the miniature gas storage (11), the available lighter transformation of the way, burning shower nozzle (14) and gas flow variable valve (13) are equipped with in its top.Burning shower nozzle (14) is the stainless steel tubule making of 1mm with external diameter.Can obtain the flame of varying strength with gas flow variable valve (13), can be as the shiner of Experiments of Optics, again can be as the thermal source of calorifics laboratory.Also miniature gas storage (11) can be placed on outside the lid (1) when doing experiment, the shower nozzle (14) that will burn takes off and is contained on the miniature gas storage socket (12), with a wireway storage (11) and burning shower nozzle (14) is coupled together.The utility model adopts semi-transparent symmetrical plane mirror (28), and it is made of two blocks of sheet glass and the translucent minute surface reflective film of one deck, and translucent minute surface reflective film is clipped between two blocks of sheet glass, and is close to and is bonded to one.The material of two blocks of sheet glass, size should be identical with thickness.This structure can guarantee that from two points of any unilateral observation of minute surface for the reflecting surface symmetry its transmission picture point overlaps fully with the reflection picture point.Compare with sheet glass, efficiency of teaching improves greatly.When doing calorifics laboratory, test-tube stent (16) is contained in the socket (17), the spring eye of test tube clamp (18) is enclosed within the top of test-tube stent (16), with the material in the flame heat test tube (15) of burning shower nozzle (14).

Claims (3)

1, a kind of junior middle school's optics, calorifics combination learning aid that comprises lid, cassette holder, convex lens and traversing carriage thereof, dispersing prism, cylindrical lens, cylindrical mirror, transparent tank, slit, powered battery electric light source, it is characterized in that being provided with in the box miniature gas storage (11) and socket (12) thereof, burning shower nozzle (14), test tube (15), test-tube stent (16) and socket (17), test tube clamp (18), thermometer (19) and rubber stopper (21), a translucent symmetrical plane mirror (28) also is housed in the box.

2,, it is characterized in that being equipped with burning shower nozzle (14) and gas flow variable valve (13) at the top of miniature gas storage (11) according to optics of described junior middle school of claim 1, calorifics combination learning aid.

3, according to optics of described junior middle school of claim 1, calorifics combination learning aid, it is characterized in that semi-transparent symmetrical plane mirror (28) is made of two blocks of sheet glass and the translucent minute surface reflective film of one deck, translucent minute surface reflective film is clipped between two blocks of sheet glass, and is close to and is bonded to one.

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