CN202549124U - Thermotics experiment component for junior high school physics - Google Patents

Abstract

The utility model discloses a thermotics experiment component for junior high school physics and aims at solving the problem that the traditional experimental appliance is large in size, inconvenient to carry and has potential safety hazards. The component comprises a test tube support, a large test tube, a small test tube, a test tube plug, a tealight and a thermometer. The large test tube is rolled-mouthed and supported by the test tube support. The small test tube is flat-mouthed and sleeved with the large test tube. The test tube plug is shaped like a bench and the large-diameter position matches and is inserted together with the large test tube and the small-diameter position matches and is inserted together with the small test tube. A hole for the thermometer is arranged at the middle part of the test tube plug and a vent hole is arranged at the side part of the test tube plug. Various appliances of the component can be assembled and arranged in a box and is convenient to carry and store and convenient to assemble for use. The solid tealight as the heat source has long burning time, good safety performance and no smoke during burning and is convenient for carrying and environment friendly. The whole component is small in size and low in price, thereby being suitable for each student to have one.

Description

Junior physics calorifics laboratory assembly

Technical field

The utility model relates to a kind of test tool, particularly is easy to keeping, junior physics calorifics laboratory assembly easy to use.

Background technology

In present junior physics calorifics teaching part, body melts of relating to and the content of solidifying are arranged, in conjunction with this content design the corresponding experiment of object through the heat fused process.Do experiment from not the experiment utensil, but the current experiments utensil is still the spirit lamp continued to use for many years, iron stand, beaker etc., the problem that these traditional experiment utensils exist is that overall volume is big, quality heavy, is not easy to the student carry and deposit; Liquid alcohol in the spirit lamp is inflammable object, carries not only inconvenience but also dangerous; A whole set of experimental provision price is more expensive, is unfavorable for realizing student's staff one cover; In addition, junior middle school student's age is less, and manipulative ability is relatively poor, uses this cover heating arrangement can not reach handy, and the security of its operation lets the people worry very much, has potential safety hazard in the operating process.

The utility model content

The utility model technical matters to be solved is: overcome the defective of above-mentioned prior art and a kind of preservation that is easy to carry about with one, easy to operate junior physics calorifics laboratory assembly are provided.

The alleged problem of the utility model is solved by following technical scheme:

A kind of junior physics calorifics laboratory assembly, special feature is: it comprises test tube stand, Boiling tube, small test tube, test tube plug, tea wax and thermometer, said Boiling tube is the wiredrawn edge test tube; It is supported by the test tube stand, and said small test tube is flat oral examination pipe, and it is sleeved in the Boiling tube; Said test tube plug is the stage shape; Its major diameter place and Boiling tube coupling plug together, and minor diameter place and small test tube coupling plug together, and test tube plug middle part is provided with thermometer hole, limit portion is provided with vent port.

Above-mentioned junior physics calorifics laboratory assembly, said test tube stand is made up of base and brandreth, and base one end is provided with the brandreth jack; Said brandreth upper support circle and Boiling tube coupling suit suitable for reading, lower support bar and brandreth jack coupling plug together.

Above-mentioned junior physics calorifics laboratory assembly, said experiment package also are provided with the anti-vibration sleeve and the crash roll of isolating large and small test tube, and crash roll is positioned at the small test tube bottom, and anti-vibration sleeve is enclosed within the small test tube outside.

Above-mentioned junior physics calorifics laboratory assembly, said tea wax is packed in the holder of boxlike aluminium.

The utility model to the used traditional experiment utensil volume of junior physics body melts experiment greatly, not portable keeping and the problem that has a potential safety hazard improve, designed a cover and be applicable to the body melts experiment package that the junior school student uses.This assembly by test tube stand, Boiling tube, small test tube, use plug, tea wax etc. to form more, utensil can be assembled in the box that is placed in each other in the assembly, be easy to carry the keeping; Solid tea wax is easy to use as thermal source, and burning time is long, and security performance is good, be easy to carry, and when burning is smokeless, is beneficial to environmental protection; Many with plug can the while as the gag of large and small test tube; In addition, small and exquisite, the low price of a whole set of assembly volume is suitable for student's staff one cover.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A cut-open view of Fig. 1;

Fig. 3 is the structural representation of test tube plug.

Label is represented as follows among the figure: 1. base; 1-1. brandreth jack; 2. brandreth; 2-1. support bar; 2-2. bracing ring; 3. thermometer; 4. test tube plug; 4-1. thermometer hole; 4-2. vent port; 5. anti-vibration sleeve; 6. Boiling tube; 7. small test tube; 8. crash roll; 9. tea wax; 9-1. aluminium holder.

Embodiment

Referring to Fig. 1, Fig. 3; The utility model comprises test tube stand, Boiling tube 6, small test tube 7, test tube plug 4, tea wax 9 and thermometer 3, and said Boiling tube is the wiredrawn edge test tube, and it is supported by the test tube stand; Said small test tube is flat oral examination pipe; It is sleeved in the Boiling tube, and such structure is unlikely to hand is scratched when experiment, has guaranteed experiment safety.The big shared test tube plug 4 of small test tube; Said test tube plug is the stage shape, and its major diameter place and Boiling tube mouth coupling plug together, and minor diameter place and small test tube coupling plug together; Test tube plug middle part is provided with the thermometer hole 4-1 that inserts thermometer, and test tube plug limit portion is provided with vent port 4-2.Vent port is set can in time be got rid of the gas that heating process produces, and can not occur because of liquid bumping internal pressure increases plug being released, and liquid spills scalds the experimenter.

Referring to Fig. 1, Fig. 2, said test tube stand is made up of base 1 and brandreth 2, and base one end is provided with brandreth jack 1-1; The slot place of the other end is in order to put tea wax 9, and tea wax 9 is packed among the boxlike aluminium holder 9-1, and selecting smokeless tea wax for use is thermal source; Be easy to preserve, burning time is long; Because the existence of aluminium holder is arranged, use saferly and easy to carry, smokelessly be beneficial to environmental protection during burning.During experiment, brandreth upper support circle 2-2 and Boiling tube coupling suit suitable for reading, lower support bar 2-1 and brandreth jack coupling plug together.

Still referring to Fig. 1, large and small test tube collides each other when carrying for preventing that experiment package is daily, also is provided with the anti-vibration sleeve 5 and crash roll 8 of isolating large and small test tube, under non-experimental state, crash roll 5 is seated in the small test tube bottom, and anti-vibration sleeve is enclosed within the small test tube outside.

Each utensil in the above-mentioned experiment package can be assembled or break easily.

With the material melting experiment is the use of example explanation the utility model: brandreth 2 and base 1 plug-in mounting are combined as the test tube stand; Take out anti-vibration sleeve 5 and crash roll 8 in the test tube, test tube is seated on the test tube stand, tea wax 9 is lighted and is placed into the test tube bottom; Be respectively charged into ice, hypo, paraffin wax of-5 ℃ etc. in the small test tube; Observe the fusion process of these materials, every at a distance from temperature of half a minute record, all melt the back till a few minutes up to object.On square paper, use the transverse axis express time, the longitudinal axis is represented temperature, the fusing image of the ice that draws, hypo or paraffin.Variation of temperature rule when probing into the solid fusing through comparing these figure lines.

Claims (4)

1. junior physics calorifics laboratory assembly; It is characterized in that: it comprises test tube stand, Boiling tube (6), small test tube (7), test tube plug (4), tea wax (9) and thermometer (3), and said Boiling tube is the wiredrawn edge test tube, and it is supported by the test tube stand; Said small test tube is flat oral examination pipe; It is sleeved in the Boiling tube, and said test tube plug is the stage shape, and its major diameter place and Boiling tube coupling plug together; Minor diameter place and small test tube coupling plug together, and test tube plug middle part is provided with thermometer hole (4-1), limit portion is provided with vent port (4-2).

2. junior physics calorifics laboratory assembly according to claim 1 is characterized in that: said test tube stand is made up of base (1) and brandreth (2), and base one end is provided with brandreth jack (1-1); Said brandreth upper support circle (2-2) and Boiling tube coupling suit suitable for reading, lower support bar (2-1) plugs together with brandreth jack coupling.

3. junior physics calorifics laboratory assembly according to claim 2 is characterized in that: said experiment package also is provided with the anti-vibration sleeve (5) and the crash roll (8) of isolating large and small test tube, and crash roll is positioned at the small test tube bottom, and anti-vibration sleeve is enclosed within the small test tube outside.

4. according to claim 1 or 2 or 3 described junior physics calorifics laboratory assemblies, it is characterized in that: said tea wax (9) is packed in the boxlike aluminium holder (9-1).

Images