Measuring tape finial mechanism and measuring tape thereof

Abstract

The invention relates to a measuring tape finial mechanism. The finial mechanism comprises a finial and is characterized by also comprising t a central convex column of a sheath, an upper push piece,a lower push piece, a finial seat and a restoration piece, wherein the column has a through hole penetrating the sheath, and the inside of the through hole has an axial slide rail; first skew gears are formed and distributed on the lower end of the column and around the through hole; the upper push piece is slidably arranged inside the through hole, and first ring gears are formed and distributedon the lower end of the upper push piece in circumferential direction; the first ring gears are radially provided with an outward first flange which is matched with the slide rail; the lower end of the lower push piece is propped on the finial, and the upper end is detachably connected with the upper push piece; moreover, second ring gears in division rotary fit with the first ring gears of the upper push piece are convexly formed and distributed on the lower end of the lower push piece in circumferential direction, and the outer circumferential wall of the lower end has second skew gears which are matched with the first skew gears of the lower end of the column; the second skew gears protrude outwards in radial direction to form a second flange in back-and-forth sliding fit with the sliderail inside the through hole to drive the mechanism; the finial seat is telescopically limited on the lower end of the sheath; the restoration piece extends outside the finial to fix the measuring tape when used, and retracts the finial into a measuring tape shell when not used to avoid causing injuries to people; and moreover, the total volume of the measuring tape is reduced, which is favorablefor packaging, transportation and storage.

Description

technical field [0001] The invention relates to a tip mechanism of a tape measure, and also relates to a tape measure equipped with the tip mechanism. Background technique [0002] When measuring on the construction site, it is often necessary to fix one end of the tape before the measurement can be completed smoothly. Therefore, most of the tapes now have a top mechanism to fix one end, but the top structure we have seen so far is relatively simple. Generally, the top is directly assembled on the scale shell, and the sharp end of the top is exposed outside, which may accidentally injure the human body, which has potential safety hazards. Moreover, the overall volume increases, which is not conducive to packaging and transportation. For example, the Chinese utility model patent "Tape Measure with Clutch Handle" (authorized announcement number: CN2722193Y) whose reference patent number is ZL200420066462.5, similarly also has the Chinese invention publication "Hand Mechanism o...

AI Technical Summary

Problems solved by technology

[0002] When measuring on the construction site, it is often necessary to fix one end of the tape before the measurement can be completed smoothly. Therefore, most of the tapes now have a top mechanism to fix one end, but the top structure we have seen so far is relatively simple. Generally, the tip is directly assembled on the scale shell, and the sharp end of the tip is exposed outside, which may accidentally injure the human body and pose a safety hazard. Moreover, the overall volume increases, which is not conducive to packaging and transportation.

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