CN200972379Y

CN200972379Y - Electronical display flexible rule

Info

Publication number: CN200972379Y
Application number: CN 200620126733
Authority: CN
Inventors: 刘宇航
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-01
Filing date: 2006-11-01
Publication date: 2007-11-07
Anticipated expiration: 2016-11-01

Abstract

An electronic digital displaying tape measure specifically relates to a tape measure with digital displaying functions. With the technological scheme provided in the utility model, a rotary shaft is arranged inside the casing, which is characterized in that the rotary shaft is provided with a capacitive grid and a tape, the casing is provided with an outlet that allows the tape to penetrate through and move, a node is arranged evenly on the tape, a photoelectric readout is positioned on the casing for identifying and recording node numbers, a signal processing device for processing the output data of capacitive grid and photoelectric readout and a display for displaying processed data. The photoelectric readout, the signal processing device and the display connect each other by means of a transfer line, and the signal processing device connects to the output terminal of the capacitive grid by means of a transfer line. Such tape measure has the electronic and digital displaying functions, which makes users able to observe data directly and conveniently.

Description

A kind of electronic digital display tape measure

Technical field

The utility model belongs to a kind of tape measure, specifically a kind of tape measure with digital Presentation Function.

Background technology

Existing ordinary tape measure constitutes by having scale and flexible metal tape and its housing usually, and during use, metal tape can utilize the elasticity of self to be wound in the housing on institute's spool, pulls out metal tape, length that just can Measuring Object.The defective of this product is: measuring accuracy is lower, operates cumbersome.A kind of tape measure that has digital Presentation Function is arranged in addition, and this tape measure utilizes code wheel reading, and defective is that difficulty of processing is big, complex structure, and the cost height, reading is out of true also.

Summary of the invention

The purpose of this utility model is to provide a kind of electronic digital display tape measure, and this tape measure has the electronic digit Presentation Function, and the user can see the data of measurement intuitively, operates more convenient.

The technical scheme that provides according to the utility model, rotating shaft is installed in the enclosure, it is characterized in that: in rotating shaft, install and hold grid and chi band, the outlet that allows the chi band to pass and move is set on shell, node is set on the chi band equably, on shell, be provided for discerning and writing down the photoelectric counter of node number, and the signal processor that is used to handle appearance grid and photoelectric counter output data, display with the data that are used to show treated mistake, photoelectric counter, signal processor and display utilize transmission line to interconnect respectively, and signal processor utilizes transmission line to be connected with the output terminal that holds grid simultaneously.

Static that holds in the grid is fixed in the shell, and the rotatable lamella that holds in the grid is installed in the rotating shaft.

The utility model has the advantages that: because ordinary tape measure and circular grid, photoelectric counter and the signal processor of holding are organically combined, constituted a kind of brand-new electronic digit and shown tape measure, thereby improved precision, simplify the structure, made things convenient for operation.

Description of drawings

Fig. 1 is a structural drawing of the present utility model.

Fig. 2 is for holding the structural drawing of grid.

Fig. 3 is connection status figure.

Embodiment

1, chi band, 2, node, 3, photoelectric counter, 4, shell, 5, transmission line, 6, signal processor, 7, hold grid, 8, display screen, 9, rotating shaft, 10, rotatable lamella, 11, static.

As shown in the figure: rotating shaft 9 is installed in shell 4, in rotating shaft 9, install and hold grid 7 and chi band 1, the outlet that allows chi band 1 to pass and move is set on shell 4, node 2 is set on chi band 1 equably, on shell 4, be provided for discerning and writing down the photoelectric counter 3 of node number, and the signal processor 6 that is used to handle appearance grid 7 and photoelectric counter 3 output datas, display 8 with the data that are used to show treated mistake, photoelectric counter 3, signal processor 6 and display 8 utilize transmission line 5 to interconnect respectively, and signal processor 6 utilizes transmission line 5 to be connected with the output terminal that holds grid 7 simultaneously.Static 12 that holds in the grid 7 is fixed in the shell 4, and the rotatable lamella 10 that holds in the grid 7 is installed in the rotating shaft 9.

Wherein, chi band 1 is the steel ruler band of ordinary tape measure, plurality of nodes 2 equably distributes on the surface, node 2 can be distinguished by photoelectric counter 3, chi band 1 coaxial being fixed in the rotating shaft 9 of discoidal appearance grid 7 and tape measure, when chi band 1 when pulled, holding grid 7 can be along with rotation, the node number that photoelectric counter 3 can slipstick band 1 moves, hold grid 7 and can calculate the angle of rotation, the signal of photoelectric counter 3 and appearance grid 7 is delivered to signal processor 6 through transmission line 5, and data after treatment are transferred to display screen 8 again, shows length by display screen.

Its principle of work is as follows: when pulling chi band 1, as moving (n-1) individual node 2, then the chi band 1 length reading of passing by is (n-1) * L; When photoelectric counter 3 is read node jn, hold grid 7 and begin measuring angle from this corresponding node jn, if rotated Δ α angle, then the length that moves of the chi band 1 of Δ α angle correspondence is φ π/360 ° * Δ α, wherein " φ " for holding the grid diameters, and φ π/360 ° are the length of the rotational angle correspondence of holding grid 7.Then the total length that moves of chi band 1 is: (n-1)+φ π/360 ° * Δ α, by the processing of signal processor 6, display screen 8 just can demonstrate length value with numeral.

Illustrate how to use this technology below in conjunction with an example, as shown in the figure: when pulling chi band 1, the node number that node 9 on the chi band 1 is moved down by meter by photoelectric counter 3, the appearance grid 7 that rotate along with the pulling of chi band 1 are then noted the angle delta α of rotation, carry out digital processing by 6 pairs of signals of signal processor, on display screen 8, demonstrate length data again.

Claims

1, a kind of electronic digital display tape measure, rotating shaft (9) is installed in shell (4), it is characterized in that: go up to install in rotating shaft (9) and hold grid (7) and chi band (1), the outlet that allows chi band (1) to pass and move is set on shell (4), node (2) is set on chi band (1) equably, on shell (4), be provided for discerning and writing down the photoelectric counter (3) of node number, and the signal processor (6) that is used for handling appearance grid (7) and photoelectric counter (3) output data, display (8) with the data that are used to show treated mistake, photoelectric counter (3), signal processor (6) and display (8) utilize transmission line (5) to interconnect respectively, and signal processor (6) utilizes transmission line (5) to be connected with the output terminal that holds grid (7) simultaneously.

2, electronic digital display tape measure as claimed in claim 1 is characterized in that: static (12) holding in the grid (7) are fixed in the shell (4), and the rotatable lamella (10) that holds in the grid (7) is installed in the rotating shaft (9).