CN2515654Y

CN2515654Y - Clinometer for measuring inclination

Info

Publication number: CN2515654Y
Application number: CN 01272183
Authority: CN
Inventors: 王全生; 赵振; 杜宪; 王焱
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-13
Filing date: 2001-12-13
Publication date: 2002-10-09
Anticipated expiration: 2011-12-13

Abstract

The utility model discloses a gradient measuring instrument, which is composed of a dial and a pointer. The dial (2) is a rectangular flat plate (1) which is marked with a semi-circled calibration line of 90 degrees to 0 degree to 90 degrees. The center of the circle is provided with the pointer (3), which flaps down naturally. The utility model takes advantage of the principle that the angle between the central line of the dial and the pointer is equal to the slope angle, so the utility model can directly read the slope angle, and then the gradient can be calculated by means of the tangent value. With simple structure, low manufacturing cost, high precision and wide application range, the utility model is mainly applied in the positioning and setting out, quality supervision and investigation and acceptance in some projects.

Description

Gradient measurer

Technical field

The utility model relates to a kind of measuring instrument, specifically is used to measure the gradient.

Background technology

In engineering construction, the buildings that requires to have certain slope is more, as the upstream batter and the downstream slope of reservoir, the longitudinal gradient of discharge conduit and side slope; The longitudinal gradient in spillway, water delivery hole etc.For the location setting-out of these engineerings with inspect for acceptance, need to rely on detecting instrument to finish.General medium and small building site, particularly building site, rural area, owing to lack location setting-out, the quality supervision that detecting instrument causes some engineerings, and the very difficulty of inspecting for acceptance.If this instrument is arranged, just possibility compensates the deficiency of detecting instrument shortage.

Existing optical level and transit are that price is cheapest in the modernized surveying instrument on the market, but concerning general medium and small building enterprise, also are forbidding, and operation is more loaded down with trivial details, and operating personnel need have suitable professional technique.

Summary of the invention

The purpose of this utility model is to provide a kind of gradient measurer, is mainly used in inspecting for acceptance of engineering, and method is simple, and it is convenient to take, and precision is higher.

The technical solution of the utility model: this gradient measurer is made up of index dial and pointer, and index dial is to be marked with 90 °～0 °～90 ° scales that are the semicircle camber line at a rectangular flat, at home position pointer is installed, and pointer is nature and hangs down.

The utility model measuring instrument, pointer is always perpendicular to surface level, utilize gradient measurer index dial center line and pointer angle to equal the principle of the angle of gradient, from index dial, can directly read the angle of gradient, utilize tangent value to calculate the gradient, this gradient measurer is simple in structure, and is cheap, precision is higher, and range of application is wider.

Description of drawings

Fig. 1 is the utility model gradient measurer organigram;

Fig. 2 is the utility model gradient measurer principle schematic.

Embodiment

As shown in Figure 1, gradient measurer is made up of index dial 2 and pointer 3, and index dial is that semicircle camber line is set on the rectangular flat 1, and camber line is marked with 90 °～0 °～90 ° scales, and pointer 3 is installed on home position, and it is sagging that pointer is nature.

As shown in Figure 2, during use gradient measurer is placed on domatic on, make the pointer on the gradient measurer vertical with surface level, because Δ acd ≌ Δ a ' cb, so domatic and angle α surface level equals index dial center line and pointer angle α ', the value of α ' can directly be read from index dial, calculates the gradient according to the tangent value of trigonometric function.

Claims

1, a kind of gradient measurer is made up of index dial (2) and pointer (3), it is characterized in that: index dial (2) is to be marked with 90 °～0 °～90 ° scales that are the semicircle camber line at a rectangular flat (1), at home position pointer (3) is installed, pointer is nature and hangs down.