A small level that is easy to adjust

Abstract

The invention discloses an easy-to-adjust small level which comprises a base, a level body and a connection base plate, wherein the level body is provided with a circular level, a tubular level parallel to the collimation axis, and a finely-tilting helix; a spherical cavity is arranged on the connection base plate; two placing slots are formed in the upper surface of the connection base plate along the radial direction of the spherical cavity; the placing slots extend along the vertical axis of the spherical cavity to be tangential with the spherical surface of the spherical cavity; a disc-shaped floating block is adapted in the spherical cavity; the thickness of the floating block is less than the width of each placing slot; a connection circular hole is formed in the center of the floating block; a swing rod passes through the connection circular hole of the floating block and is in vertical threaded connection with the upper surface of the base; a correction counter weight is arranged at the lower end of the swing rod; at least three adjusting screws are arranged on the edge of the upper surface of the connection base plate; and the upper ends of the adjusting screws are placed against the lower surface of the base. According to the small level disclosed by the invention, a preliminary levelness adjustment process can be quickly finished, and the collimation axis has the relatively high levelness in work.

Description

Technical field [0001] The invention relates to a level, in particular to a small optical level with high measurement accuracy. Background technique [0002] Level measuring devices are mainly used to measure the height of a certain point or the height difference between two points in construction and other projects. The existing optical level measuring device is usually composed of a leveling instrument and two leveling rulers. The leveling instrument mainly includes a base connected to a tripod and a body rotatably connected to the base through a vertical axis. A telescope composed of an objective lens, an eyepiece, a focusing lens and a reticle, etc., is also provided with a corresponding leveling structure on the body to adjust the collimation axis of the telescope to a horizontal state during measurement. The level adjustment structure mainly includes a circular level set on the body to indicate whether the vertical axis is vertical, a tube level used to indicate whether th...

AI Technical Summary

Problems solved by technology

[0003] An object of the present invention is to provide a small level that is easy to adjust in order to solve the problem of cumbersome initial adjustment procedures in existing optical levels, which can not only quickly and conveniently complete the initial adjustment of leveling procedures, but also help reduce the need for Surveyor's Requirements

[0004] Another object of the present invention is to provide a small level that is easy to adjust in order to solve the problem that the collimation axis of the telescope in the existing optical level is easy to produce large errors when leveling, thereby affecting the measurement accuracy of the level. The telescopic collimation axis of the level can have a high levelness during work, and the parallelism of the collimation axis is not easily affected by the human factors of the surveyor and the manufacturing and assembly accuracy of the level

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