CN205684059U - Can the test tube of thermometric - Google Patents

Abstract

This patent discloses in laboratory paraphernalia manufacture field can the test tube of thermometric, including inner and outer tubes, its inner tube is socketed in described outer tube, and be filled with between inner tube and outer tube can the glassy layer of heat conduction, in described glassy layer, thermodetector is installed, described thermodetector includes cylinder chamber, accommodates chamber and be positioned at the temperature sensor accommodating intracavity, its cylinder chamber communicates with accommodating chamber, and the axis of cylinder chamber parallels with the axis of inner tube, accommodate chamber and be positioned at the glassy layer bottom inner tube, the outer wall of described outer tube is carved with the temperature scale line corresponding with cylinder chamber.Only has cylinder chamber built with temperature sensor, and the glassy layer filled in other spaces of inner and outer tubes, it is to avoid the problem that the excessive efficiency of heating surface caused of volume shared by temperature sensor is low simultaneously.

Description

Can the test tube of thermometric

Technical field

This utility model relates to laboratory paraphernalia and manufactures field, and being specifically related to can the test tube of thermometric.

Background technology

Test tube, also known as glass tubing, is the glass apparatus that chemical laboratory is conventional, serves as the reaction vessel of a small amount of reagent, Use when room temperature or heating.Find during laboratory technician is actually used, when the reagent that heating is the most sensitive to temperature, All it is difficult to control to, often occurs too high or too low for temperature, cause the failure of experiment.Then, how when test tube heats, examination is controlled Temperature in pipe becomes urgent problem.

" a kind of glass tubing with temperature-prompting function ", this glass is disclosed at Chinese patent CN201510446997.8 Pipe includes that canals of stilling, described canals of stilling include that inner layer glass tube, outer layer glass tube, temperature indicator and temperature become material, institute State temperature change material to be arranged between inner layer glass tube and outer layer glass tube, and the packing volume of described temperature change material is glass tubing 2/3rds of body volume, described temperature indicator is embedded on outer layer glass tube periphery and becomes material with temperature and is connected. The temperature variations of glass tube reagent is observed although this glass tubing can allow laboratory technician understand intuitively, but due to it 2/3rds of canals of stilling volume are become material by temperature and fill, when causing heatable glass tube, and the big calorimetric of its heating early stage Measure and become material lock absorption by temperature, cause length of side heat time heating time, directly result in the efficiency of heating surface and reduce.

Utility model content

This utility model be intended to provide a kind of can the test tube of thermometric, absorbed heat solving test tube temperature layer of the prior art Greatly, the problem that the efficiency of heating surface is too low is caused.

In this programme can the test tube of thermometric, including inner and outer tubes, its inner tube is socketed in described outer tube, and in inner tube And be filled with between outer tube can the glassy layer of heat conduction, thermodetector is installed in described glassy layer, described thermodetector includes cylinder chamber, appearance Receiving chamber and be positioned at the temperature sensor accommodating intracavity, its cylinder chamber communicates with receiving chamber, and the axis phase of the axis of cylinder chamber and inner tube Parallel, accommodate chamber and be positioned at the glassy layer bottom inner tube, the outer wall of described outer tube is carved with the temperature corresponding with cylinder chamber and carves Degree line.

The operation principle of this programme and beneficial effect thereof: utilize the physical change that temperature sensor expands with heat and contract with cold, make temperature sensor exist Cylinder chamber rises or declines, and temperature sensor is corresponding with temperature scale line, and laboratory technician can get information about the reaction of reagent Temperature, can according to reaction temperature the most too high or too low and take cooling or heat up measure；Only has cylinder chamber simultaneously Built with temperature sensor, and the glassy layer filled in other spaces of inner and outer tubes, it is to avoid volume shared by temperature sensor The problem that the excessive efficiency of heating surface caused is low.

Further, the outer wall on described outer tube top is provided with a circle anti-slip veins, and the width of anti-slip veins is 10mm.Owing to passing The outer wall of system outer tube is relatively smooth, easily causes laboratory technician when clamping outer tube with test tube clamp, the phenomenon skidded occurs, cause whole Prop up test tube and drop broken；But by increasing the roughness of outer tube outer wall, directly affects the frictional force between test tube clamp and outer tube, keep away Exempt from the appearance of skidding, reduced whole test tube and drop broken risk；If the width of anti-slip veins is more than 10mm, increase Outer tube and the area of air contact, cause outer tube heat radiation too fast, affect the efficiency of heating surface；But the width of anti-slip veins is less than 10mm, Contact less with the jaws of test tube clamp, cause test tube clamp to clamp during outer tube insecure.

Accompanying drawing explanation

Fig. 1 is that this utility model can the axonometric chart of test tube of thermometric.

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Reference in Figure of description includes: thermodetector 1, inner tube 2, outer tube 3.

Embodiment is the most as shown in Figure 1: the test tube of thermometric can include that wall thickness is inner tube 2 and the outer tube 3 of 1mm, in it Pipe 2 is socketed in outer tube 3, and forms gap between inner tube 2 and outer tube 3, and the spacing in this gap is 1mm.And at inner tube 2 and outer tube Be filled with in 3 gaps formed can the glassy layer of heat conduction, a thermodetector 1 is installed in glassy layer, this thermodetector 1 includes cylindricality Chamber, accommodating chamber and be positioned at the temperature sensor accommodating intracavity, temperature sensor in the present embodiment selects red hydrargyrum layer, its cylinder chamber and appearance Receiving chamber communicates, and the axis of cylinder chamber is paralleled with the axis of inner tube 2, accommodates chamber and is positioned at the glassy layer bottom inner tube 2, and it holds Receive chamber by fully wrapped around for the bottom of inner tube 2, and on the outer wall of outer tube 3, be carved with the temperature scale line corresponding with cylinder chamber, with Time on the outer wall on outer tube 3 top, be provided with a circle for increasing the anti-slip veins of outer wall roughness, and the width of anti-slip veins is 10mm.

Utilize the physical change that temperature sensor expands with heat and contract with cold, make temperature sensor cylinder chamber rise or decline, and temperature sensor with Temperature scale line is corresponding, and laboratory technician can get information about the reaction temperature of reagent, can be the most too high according to reaction temperature Or too low and take cooling or heat up measure；Only have cylinder chamber built with temperature sensor simultaneously, and at inner tube 2 and outer tube 3 Other spaces in the glassy layer filled, it is to avoid the problem that volume shared by the temperature sensor excessive efficiency of heating surface caused is low.

Above-described is only embodiment of the present utility model, and in scheme, the known general knowledge such as concrete structure and characteristic is at this Too much describe.It should be pointed out that, for a person skilled in the art, in the premise without departing from this utility model structure Under, it is also possible to making some deformation and improvement, these also should be considered as protection domain of the present utility model, and these are all without impact The effect of this utility model enforcement and practical applicability.The protection domain that this application claims should be with the content of its claim Being as the criterion, the detailed description of the invention in description etc. records the content that may be used for explaining claim.

Claims (2)

1. can the test tube of thermometric, including inner and outer tubes, its inner tube is socketed in described outer tube, and fills between inner tube and outer tube Having can the glassy layer of heat conduction, it is characterised in that: being provided with thermodetector in described glassy layer, described thermodetector includes cylinder chamber, appearance Receiving chamber and be positioned at the temperature sensor accommodating intracavity, its cylinder chamber communicates with receiving chamber, and the axis phase of the axis of cylinder chamber and inner tube Parallel, accommodate chamber and be positioned at the glassy layer bottom inner tube, the outer wall of described outer tube is carved with the temperature corresponding with cylinder chamber and carves Degree line.

The most according to claim 1 can the test tube of thermometric, it is characterised in that: described outer tube external wall of upper portion is provided with a circle and prevents Sliding stricture of vagina.