CN2114137U - Automatic counting length measurer - Google Patents

Abstract

The utility model relates to a mechanical digital automatic counting length-measuring instrument. A standard rolling wheel, which embodies the multiple number of one millimeter as a length measuring unit, tightly abuts with a measured object under the action of a spring and holds nonslipping rolling, a measurement number value is displayed by a mechanical digital counter provided with a zero resetting mechanism, and an axial stretching type cutting or touching and drawing event marker is also arranged. The utility model can carry out length measuring to the flexible material of cloth, leather and cord or the surfaces of linear and curved objects by means of accumulating singly or continuously.

Description

Automatic counting length measurer

The invention provides a kind of mechanical digital formula length-measuring appliance of counting automatically.

It all is the measurement instruments that embody one millimeter multiple of length metering unit to be carved with on the entity material that the device for measuring length of selling on the market has steel tape, cloth tape rule, wooden meter ruler, bamboo meter ruler etc.When doing the linear measure longimetry of flexible cloth Shu class, must be with the straight expansion of measured object, not only floor area is big, and straight meter ruler shift joint is big to positive error, influences measuring accuracy and accuracy, if the curve body surface is carried out linear measure longimetry, just more is difficult to realize.

Task of the present invention is: provide a kind of and be connected with the mechanical digital number system to be carved with one millimeter roller of embodiment length metering unit on the normal disc circumference, when the normal disc roller under spring action, and between the tested cloth Shu, realize nonslipping rolling, by the physical length size that reads testee in the number system numeral.Thereby improve the degree of accuracy and the accuracy of the continuous coverage of flexible cloth Shu class.Normal disc roller when the disassemble spring, can with the curve solid object surface, perhaps the straight line solid object surface contacts and carries out linear measure longimetry.

Architectural feature of the present invention is: go up the mechanical digital formula counting mechanism (2) that has return-to-zero mechanism by dress by frame body (Fig. 1) base (1) that steel or plastics matter are made, be carved with on its circumference of steel normal disc and embody one millimeter roller of length metering unit (3), be fixed on axle (5) one ends by jackscrew (4), on axle (5) firm banking (1), its other end is fixed an idle wheel (6) that is meshed with mechanical digital formula counting mechanism (2).One end is fixed on leaf spring (7) on the base (1) by screw (8), under the elastic force effect, make tested cloth Shu and roller (3) keep nonslipping rolling, after tested cloth Shu measures end, leaf spring (7) contacts with roller (3) immediately, stops whole gear train not rerun.The plastic casing (9) that is fixed on the base (1) by (Fig. 1) places transparent organic glass matter window (10) to read the numeral that (Fig. 1) counting mechanism (2) shows from (Fig. 2).

Pressing (Fig. 1) is installed on return-to-zero button (11) on the mechanical digital formula counting mechanism (2) and treats that counting is shown as zero, tested flexible cloth Shu, leather, cotton rope can be introduced between roller (3) and the leaf spring (7), measure, the rest may be inferred next time.

After counting is shown as zero, pass base (1) dovetail groove folding and remove leaf spring (7) mechanism, roller (3) directly touches the testee surface, as long as keep nonslipping rolling, along the measured object surface displacement, in like manner can carry out single or cumulative length measurement continuously to curved surface or straight planar object.

The axial stretching type that is adhesively fixed on plastic casing (9) side and roller (3) axes extending line cuts off or touches the picture labelling apparatus.The last sleeve pipe (12) of plastic production, running casing (16) are by being threaded to one.The eight equal parts keyway is made in last sleeve pipe (12) inside, top, and the terminal system of keyway is at 45, has half shallow keyway of four groups of keyway depth dimensionses to be evenly distributed on the circumference between the eight equal parts keyway again.Slide in last sleeve pipe (12) by keyway top cap (13), the half-angle that eight equal parts is made in top cap (13) keyway lower surface is 45 ° a ratchet claw-like.Core cap (14) the top diameter of axle inserts in top cap (13) endoporus and is slidingly matched, and the bottom is made and had quartern keyway and slide in last sleeve pipe (12), has 45 ° of oblique angles on the quartern keyway, is meshed with top cap (13) lower surface eight equal parts ratchet pawl groove.Axostylus axostyle (15) the top diameter of axle that has shoulder is slidingly matched to adorn and inserts in core cap (14) endoporus, middle part device compression spring (17), the bottom diameter of axle is slidingly matched and packs among running casing (16) aperture, guide finger (18) is screwed into axostylus axostyle (15) by screw thread and moves along running casing (16) guide groove is interior, prevent that axostylus axostyle (15) from radially rotating, insert friction tight metal in axostylus axostyle (15) aperture, lower end and carve type cutting knife (19) or insert and touch paintbrush.

Connect top cap (13),, carve type cutting knife (19) or replaceable one-tenth and touch paintbrush, will expose running casing (16), do perpendicular to testee and cut off mark or touch the picture mark by core cap (14), axostylus axostyle (15), compression spring (17), guide finger (18).Press top cap (13) again, carve type cutting knife (19), or touch paintbrush and will get back among the running casing (16), can measure next time.

Claims (3)

1, a kind of roller [3] that on the normal disc circumference, embodies length metering unit-millimeter multiple, be connected with the mechanical digital formula counting mechanism [2] that has zero resetting device by jackscrew [4], axle [5], idle wheel [6], form counting length meter automatically, feature of the present invention is: roller [3] keeps nonslipping rolling with object being measured, and plastic casing [9] side is fixed an interchangeable cut-out of axial stretching type or touched the picture labelling apparatus.

2, by the described automatic counting length meter of claim 1, it is characterized in that: the roller (3) of embodiment length metering unit-millimeter multiple of being made by antifriction metal (AFM) or plastics is realized fitting tightly the nonslipping rolling of maintenance with object being measured in leaf spring (7) effect down.

3, by the described automatic counting length meter of claim 1, it is characterized in that: fix an interchangeable cut-out of axial stretching type or touch the picture labelling apparatus in plastic casing (9) side, its axostylus axostyle (15) lower end can be inserted and be carved type cutting knife (19) or touch paintbrush, and under top cap (13), core cap (14), axostylus axostyle (15), guide finger (18), compression spring (17) effect, carrying out telescopic moving in (6) perpendicular to testee orientation sleeve pipe (12), running casing on plastics.

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