CN87206485U

CN87206485U - Test pencil capable of temp. measurement

Info

Publication number: CN87206485U
Application number: CN 87206485
Authority: CN
Inventors: 魏红斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-04-09
Filing date: 1987-04-09
Publication date: 1987-12-31

Abstract

The utility model discloses a test pencil capable of temperature measurement. The test pencil capable of temperature measurement is the reconstruction modification for the existing test pencil of any kinds. So long as a temperature display component is added into a test pencil. The temperature display component mainly uses a plurality of temperature display color changeable paint or a minitype thermometer to display the temperature rise of a tested electric appliance or a line. The test pencil capable of temperature measurement is suitable for an occasion which not only needs to be tested electricity, but also needs to be tested temperature, and is especially suitable for an occasion which can not be tested temperature when power is cut. The test pencil capable of temperature measurement realizes simultaneously testing electricity and testing temperature, and therefore, the test pencil capable of temperature measurement is convenient. The utility model has the advantages of saving time and high reliability. The utility model especially can avoid the dangers of scald and electric shock.

Description

Test pencil capable of temp. measurement

The utility model relates to the test pencil of daily-use electrical appliance class.

Existing test pencil can only be surveyed electricity, can not thermometric.In routine work and life, not only want the electricity of electricity measurer or circuit, and the temperature rise that will survey them often.At present, for understanding electric apparatus temperature rise, hand commonly used is touched shell, not only inaccurate but also dangerous (scalding even electric shock); For understanding the circuit temperature rise, have to cut off the power supply and touch again, except inaccurate, dangerous, also influence is produced or life.

The purpose of this utility model is: add the temperature indicating assembly in any test pencil, make its thermometric safely and reliably again when surveying electricity.

The purpose of this utility model mainly is achieved in that promptly on existing any test pencil with insulation crust (1), test contact (2), current-limiting resistance (3), neon tube (4), hand touched electrode (5) increases the temperature indicating assembly (6) that is used for thermometric, and the temperature sensibility of this temperature indicating assembly (6) good conductor direct with test contact (2) or by heat is connected well.

Advantage of the present utility model is: increases under very few prerequisite at cost, and many temp sensing functions, it is synchronous to realize surveying electrical measurement temperature, so makes things convenient for, saves time, safely, reliably.

Description of drawings: Fig. 1 is a kind of concrete structure longitudinal diagram of the present utility model.Fig. 2 is a bushing type temperature indicating component drawings.Fig. 3 moulds casting formula temperature indicating component drawings.Fig. 4 is a thermometer temperature indicating component drawings.

With reference to accompanying drawing 1, test contact (2) with favorable conductive, heat transmissibility and enough physical strength is moulded casting in insulation crust (1), current-limiting resistance (3), neon tube (4), spring (9) are housed in the cylindrical cavity of shell (1), be screwed into again bonnet (10) fastening it.The end of bonnet (10) is equipped with hand touched electrode (5), and this electrode closely contacts with spring (9).Shell (1) is transparent or has transparent window, in order to observe luminous survey of neon tube (4).Thermometric is finished by temperature indicating assembly (6).It is to coat some kinds of temperature indicating allochroic paints (7) to form topped or not topped protective clear layer above the coating (7) on the test contact (2) of existing test pencil.(spent for tens seconds approximately) when surveying electricity and can pass through coating color-changing, (as: xanthochromia is red) knows the limit of temperature rise at tested place by inference.

With reference to accompanying drawing 2, bushing type temperature indicating assembly (6) is by test contact (2), and inwall scribbles the transparent casing (8) of some kinds of temperature indicating allochroic paints (7) to be formed, and this sleeve pipe (8) is fastened on the test contact (2).

With reference to accompanying drawing 3, moulding casting formula temperature indicating assembly (6) is directly to be cast into test contact (2) with some kinds of temperature indicating allochroic paints (7) to form with the joint portion of transparent insulating enclosure (1).

With reference to accompanying drawing 4, the thermometer (11) that thermometer temperature indicating assembly (6) is made one by test contact (2), same insulation crust (1) is formed, and the temperature sensing liquid (12) of this thermometer (11) directly or through conducting strip well contacts with test contact (2).

Above-mentioned temperature indicating allochroic paint (7) preferably adopts two kinds: (2) 65 ℃ of variable colors (red ()/() coffee) of (1) 45 ℃ of variable color (yellow ()/() is red).The former fills a prescription: mercuric iodixde adds silver iodide, weight ratio 1:6 latter prescription: mercuric iodixde adds cupric iodide, weight ratio 1:1.Raw material should fully mix to add after levigate with the same material solution of transparent casing (8) or adding and insulation crust (1) same material solution again to be mixed thoroughly and can use.

Above-mentioned miniature thermometer preferably adopts alcohol thermometer, between scale area mainly at 45～65 ℃.The most handy copper sheet of conducting strip.Preferably adopt on the technology: between insulation crust AB, axially open a band scale sulculus, radially open a blind hole at the A place, add right amount alcohol (red) again, between AB, glue a rectangle tegillum at last, in order to sealing alcohol to test contact (2).

Claims

1, a kind of thermometric test pencil, it mainly is made up of insulation crust [1], test contact [2], current-limiting resistance [3], neon tube [4], hand touched electrode [5], it is characterized in that: also comprise the temperature indicating assembly [6] that is used for thermometric, the temperature sensibility of this temperature indicating assembly [6] and test contact [2] directly or the good conductor by heat be connected well.

2, thermometric test pencil as claimed in claim 1 is characterized in that: temperature indicating assembly (6) is formed by coating some kinds of temperature indicating allochroic paints (7) on the test contact (2), topped or not topped protective clear layer above the coating (7).

3, thermometric test pencil as claimed in claim 1, it is characterized in that: temperature indicating assembly (6) is made up of the transparent casing (8) that test contact (2), inwall scribble some kinds of temperature indicating allochroic paints (7), and this sleeve pipe (8) is fastened on the test contact (2).

4, thermometric test pencil as claimed in claim 1 is characterized in that: temperature indicating assembly (6) is directly to be cast into test contact (2) with some kinds of temperature indicating allochroic paints (7) to form with the joint portion of transparent insulating enclosure (1).

5, thermometric test pencil as claimed in claim 1, it is characterized in that: the thermometer (11) that temperature indicating assembly (6) is made one by test contact (2), same insulation crust (1) is formed, and the temperature sensing liquid (12) of this thermometer (11) directly or through conducting strip contacts well with test contact (2).