CN2209322Y

CN2209322Y - Square calliper specially adapted for education and training

Info

Publication number: CN2209322Y
Application number: CN 94215058
Authority: CN
Inventors: 陈春晓; 秦明辉; 王丽辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-22
Filing date: 1994-06-22
Publication date: 1995-10-04
Anticipated expiration: 2004-06-22

Abstract

The utility model relates to a special square caliper for education and training, which belongs to the improvement of a measuring instrument. A main scale of an existing common vernier caliper is widened, and the calibrations of the existing main scale and the existing vernier are reserved. A fixed grating is inserted at the upper part of the calibration of the main scale along the length direction of the main scale, and a moveable grating and a display part are arranged at the position corresponding to the fixed grating of the main scale above a vernier frame. Using the utility model can not only directly read out the measuring value from the main scale and the vernier, but also can read out the measuring value from the fixed grating through a moveable grating. The utility model has complete function and exact measuring value, and is an ideal measuring instrument for various trades, education and training.

Description

Square calliper specially adapted for education and training

A kind of special-purpose vernier caliper that is used for education and training belongs to survey instrument.

The vernier caliper that uses has two kinds at present, and a class is a common calliper, but because common calliper uses vernier reading, can produce parallax, and measured precision is not high; Another kind of is digimatic calipers, and this slide calliper rule do not have vernier graduation, and measurement result is directly by liquid crystal display, and clear reading makes things convenient for rapidly, and reading error can reduce 90%.But this slide calliper rule are used for teaching and training, then can not train the student to grasp technical ability with the vernier graduation reading, and with the common calliper student again less than correct reading.

The purpose of this utility model provides a kind of technical ability that both can make the student grasp the vernier caliper number of division, can obtain the special-purpose vernier caliper of novel education and training of correct reading again.

The special-purpose vernier caliper of the utility model education and training is made up of main scale, vernier scale, fixed grid, moving grid and the display part of band scale, being characterised in that fixed grid is embedded in along the main scale length direction widens main scale scale top, and moving grid and display part are fixed on vernier scale frame top fixed grid opposite position.

The utility model education and training patent vernier caliper had both kept the scale of square chi and vernier scale, having set up the integrated circuit electronics simultaneously holds the grid reading and is shown by liquid crystal digital, not only can make the beginner grasp the technical ability of utilizing scale reading, can make the application of vernier caliper more extensive at the correctness of the liquid crystal display reading self check value of reading again.This vernier caliper is multiple functional, and measured value is accurate, is that every profession and trade and teaching are with desirable survey instrument.

The utility model has following accompanying drawing.

Fig. 1 is the utility model structural representation.

Fig. 2 is that the utility model is installed cut-open view.

How to realize below in conjunction with accompanying drawing narration the utility model: the special-purpose vernier caliper of the utility model education and training is made up of main scale (1), vernier scale (2), fixed grid and moving grid and display part (4), square chi (1) is widened, its positive below still keeps former scale, the top is along main scale (1) length direction fluting, and fixed grid (3) is embedded in the groove; Vernier scale (2) is also corresponding to be widened, and its below still keeps former micrometer scale, and moving grid and display part (4) are installed with the fixed grid corresponding section in its top.

Fixed grid (3) can also be arranged on the upper side of main scale (1), also can be arranged on the back side of main scale (1); The reading part of moving grid (4) can correspondingly be located at vernier scale (2) frame upside inner face or back, and the liquid-crystal display section of moving grid (4) is still stayed the front of vernier scale (2) frame.

During use, earlier with the liquid-crystal display section set to zero, stir vernier (2) then, the user can directly read the numerical value of measuring thing from the scale of vernier scale (2) and main scale (1), can also read the correct option value of electronic surveying from the display screen of moving grid display part (4).

Claims

1, the special-purpose vernier caliper of education and training described in the utility model, form by main scale, vernier scale, fixed grid, moving grid and display part, it is characterized in that: fixed grid is embedded in scale top, widened main scale front along the main scale length direction, and moving grid and display part are installed in vernier scale frame top and fixed grid corresponding section.

2, the special-purpose vernier caliper of education and training according to claim 1, it is characterized in that: fixed grid can also be embedded in the main scale upper side or the main scale back side, moving grid can correspondingly be installed in vernier scale frame top medial surface or back inner face, and the display part of moving grid still is installed in vernier scale frame front.