CZ2012699A3 - Device to determine horizontal plane - Google Patents

Abstract

The device for determining the horizontal plane consists of a telescopic rod (1) provided on one side with a tip (2) and on the other with a collimator (3) fixed perpendicular to the telescopic rod (1). Next to the collimator (3) there is a box vial (4) with a mirror (5) lowered on the rod (1), to check the level (4) and the collimator position (3) in one view. The collimator (3) is formed by a steel tubular filled glass with an optical crisis visible when looking into the tube. Under the collimator (3) there is a plate (6) with rectifying screws for precise adjustment of the perpendicular position to the rod (1).

Description

Tool for determining horizontal plane

Technical field

The invention relates to a device for approximate determination of a horizontal plane for the needs of geometric leveling from the center.

BACKGROUND OF THE INVENTION

One of the most important and most commonly used methods for determining the elevation between two points is geometric leveling from the center. The leveling device, which determines the exact horizontal plane, is always located between two vertical leveling slats on which the batten section can be read. Minimizing the inaccuracy of the leveling instrument in determining the horizontal plane is done by placing the instrument at the center of the distance between the slats, where any deviation is evenly distributed over both slats. In the subsequent calculation, these deviations are then automatically excluded in calculating the cant.

In order to maintain the distribution of the device always in the middle of the distance between slats, it is necessary to determine this distance with greater or lesser accuracy according to the accuracy of the leveling method - technical, precise, very accurate. Especially in sloping terrain, when designing the distance from the machine, there is a significant problem, since visibility on both slats from the horizontal plane of the machine must be maintained. It is therefore necessary to first design the position of the device and the laths, then level the device and then check whether it is possible to read the lath section on both laths.

The design of leveling programs is routinely based on the experience of the meter, which even in experienced meters often leads to multiple readjustments of the instrument before visibility is ensured on both bars.

2. Summary of the Invention

SUMMARY OF THE INVENTION The present invention is in a composition comprising a telescopic rod and a collimator in its upper portion. In addition, the rod is fitted with a boxed vial with a mirror so that the entire jig can be straightened quickly and accurately. Collimator - steel tube with a cross inside, which is visible when looking into the tube, is fixed perpendicular to the telescopic rod so that after leveling the box vial the cross of the collimator is horizontal. For better correction of the perpendicular bearing of the collimator on the telescopic rod, it is advisable to use a collimator with rectification.

The tool is in a folded state of a suitable compact size with the possibility to adjust the height of the leveling device on the telescopic rod. The accuracy of the leveling is ensured by means of a boxed vial with a mirror so that the meter in one view checks the leveling of the vial and the position of the cross in the collimator. The fixture is made of a solid metal alloy.

This solution consists in using a simple boxed vial so that the meter, when looking into the collimator at the height of the instrument, is immediately able to determine the correct positioning of the leveling instrument with visibility on both laths. The horizontal level vial is a compact system that allows the meter to immediately determine whether or not it will be visible on the leveling rod without leveling the leveling device.

The advantage of this solution is its low purchase price, compact size, simple construction and small requirements for leveling the jig for meters. The preparation has very low purchase costs and especially in sloping terrains will significantly speed up the design of leveling programs, which brings with it economical savings.

Looking / Clarified / Figures in the drawings

A leveling device for determining a horizontal plane will be described in more detail on a specific embodiment of the invention with reference to the accompanying drawing, in which ISbr. 1 shows an exemplary ΰ and jig in right view, $ br. 2 in front view and on Kbr. 3 in a view from the left, including enlarged parts with a vial and a collimator.

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Examples of realized? invention

An exemplary horizontal level vial 4 consists of a 1.3 m telescopic rod 1 that can be extended up to 2.0 m and has a point 2 at its bottom. A collimator is attached to the top of the rod 1. 3, consisting of a 5 mm diameter steel tube filled with glass with an optical cross visible when viewed into the tube. The collimator 3 is mounted perpendicular to the telescopic rod 1. Next to the collimator 3 is a boxed vial 4 with a tilted mirror 5, which is mounted so that the leveling of the vial 4 and the position of the cross in the collimator 3 can be checked at a glance. insert 6 with rectification screws for precise adjustment of the perpendicular position to the rod 1.

Industrial applicability

The horizontal leveling device according to the invention finds application in the design of individual leveling program adjustments.

Claims (3)

PATENT CLAIMS A device for determining a horizontal plane consisting of a telescopic rod (1) provided with a tip (2) on one side and a collimator (3) mounted perpendicular to the telescopic rod (1) on the other, characterized in that the vial (4) with the mirror (5) folded down, to enable the alignment of the vial (4) and the position of the cross in the collimator (3) at a glance. The device according to claim 1, characterized in that the collimator (3) is formed by a steel tube filled with glass with an optical cross visible when viewed into the tube. A device according to claim 1 or 2, characterized in that a plate (6) with rectification screws is arranged under the collimator (3) for precise adjustment of the perpendicular position to the rod (1).