CN87210507U

CN87210507U - Arc shaped levelling instrument

Info

Publication number: CN87210507U
Application number: CN 87210507
Authority: CN
Inventors: 顾智; 张革新
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-09-02
Filing date: 1987-09-02
Publication date: 1988-03-23

Abstract

The utility model discloses an arc-shaped levelling instrument which is a multifunction measuring appliance. The air bubbles are sealed through filling the alcohol into an arc-shaped glass tube which is provided with the graduation. The utility model can be made into an ordinary multifunction horizontal ruler, a tilting ruler, a high-precision spirit level, and a tiltmeter. The utility model has the advantages of easy fabrication, low cost, convenient operation and high precision, and can be widely used for a plurality of aspects of the topographic survey, the engineering survey, the civil construction, the road construction, the installation of the machinery equipment, etc.

Description

Arc shaped levelling instrument

The utility model is a kind of garden arc level of measuring the angle of inclination.

Before the utility model is made, normally used level (or being surveyor's staff) all is a straight tube shape, can only measure engineering ground, whether be in horizontality, can not directly measure the angle of inclination on ground, if measure the pitch angle, need auxiliary device and just can obtain tilting value through converting.

The utility model garden arc level is installed in the angle of inclination that can directly measure ground on surveyor's staff (level meter) or the inclinator.It is simple in structure, and is easy to use.

Garden arc level such as Fig. 1, shown in Figure 3 are full of in the alcohol (2) in the garden arc indicates the glass tube (1) of scale (4), seal a bubble (3).

Principle of work: adjust arc level N-N plane, garden perpendicular to surface level.So no matter how level tilts, and its bubble center and level garden heart O are on same the perpendicular line all the time.During use garden arc level is installed on the surveyor's staff.Earlier surveyor's staff is leaned against on the measured plane during measurement, adjust surveyor's staff horizontal line level again, can the bubble center from vial directly read the angle of inclination on tested plane.

Garden arc level can be made multiple shape such as Fig. 1, Fig. 3 of different gardens arc radius R and different garden arc angle φ, description of drawings: garden, 0～90 ° of inclination angle of Fig. 1 measurement range arc level, Fig. 2 is this level side view, the garden arc level at 0～20 ° of inclination angle of Fig. 3 measurement range, Fig. 4 are this level side view.

The utility model can be made the common multifunctional horizon rule, and the inclination chi also can be made high-precision level meter, dipmeter.

The utility model and existing mechanical electronic formula dipmeter are relatively, have and make simply, cheap, easy to use, measure the advantages such as accurate, can be widely used in the various aspects such as topographic survey, engineering survey, civil construction, road construction and machinery equipment installation.

Claims

Garden arc level is a kind of multifunctional measuring device, by being full of alcohol (2) in the glass tube (1), sealing a bubble (3) constitutes, it is characterized in that described level is the garden arc, can make different gardens arc radius R and different garden arc angle φ, be marked with scale (4) at the glass tube (1) of garden arc.