JPH0821727A - Horizontal-level measuring device - Google Patents

Abstract

PURPOSE:To measure horizontal levels at a plurality of remote points singly, simply and accurately by moving a laser-beam receiver to a place, where laser beams from the laser-beam receiver positioned at a specific place can be received. CONSTITUTION:A laser-beam emitting device B radiating laser beams in the horizontal direction while being rotated is placed at a specified position, a measuring device A is placed at a remote point as a reference point and a handle 8 is tuned, and a laser-beam receiver 6 mounted on a slider 5 is moved to a position, where laser beams from the beam-emitting device B can be received. A reset button 10 is depressed at the place of beam reception, and a display section 9 is reset at a zero point. The device A is shifted to another remote point to be measured and the handle 8 is revolved, and aligned to a position, where the laser-beam receiver 6 can receive laser beams from the beam-emitting device B. The vertical movement is read from the display section 9, thus easily detecting the difference of horizontal levels from the reference point. Accordingly, even an amateur is made able to simply and accurately measure the levels alone.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the horizontal level at a plurality of remote points in the construction of basic formwork in the construction field and the installation of various large machine tools, tower cranes, large computers, system furniture and the like. It is a thing.

[0002]

2. Description of the Related Art Conventionally, as a device for measuring a horizontal level, a level using a glass bubble tube filled with a liquid such as ether leaving a few bubbles, and an optical level using a combination of this bubble tube and a microscope. There is an electronic level that uses a pendulum instead of a clinometer and a bubble tube.

[0003]

However, with the above-mentioned level, it is difficult to measure the horizontal levels at a plurality of remote points even if the individual horizontal levels at the measurement position can be measured. An autocollimator that combines a collimator that applies the principle of autocollimation and a telescope is known as a device that measures the horizontal level at a remote point, but the device is complicated and extremely expensive, and the measurement operation is troublesome. Moreover, when measuring, it is necessary to stand a long ruler vertically at a remote point, which requires two engineers for surveying.
It is complicated and uneconomical.

Therefore, the main object of the present invention is to provide a horizontal level measuring device which can easily and accurately measure the horizontal levels of a plurality of remote points by one person with a compact structure and at a low cost. Is.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, in the horizontal level measuring device according to the present invention, the guide shaft is screwed onto the vertical screw shaft (3) rotatably held by the base (1) and the upper fixing plate (2). A slider (5) whose rotation is blocked by (4), a laser receiver (6) and a movement amount measuring device (7) attached to the slider (5),
The moving amount measuring device (7) comprises a display unit (9) for displaying the moving amount in a digital or analog manner and the display unit (9), which comprises a handle (8) for rotating the screw shaft (3). A reset button (10) for resetting to zero at an arbitrary position is provided.

[0006]

When the horizontal level of a plurality of remote points is measured by the measuring device (A) configured as described above, the laser light emitter emits the laser beam in the horizontal direction while rotating.
Place (B) at a specific position and measure at a remote point as a reference point.
(A) is placed and the handle (8) is rotated to move the laser receiver (6) provided on the slider (5) to a position where the laser beam from the laser emitter (B) can be received. At this light receiving position, press the reset button (10) to reset the display unit (9) to the zero point. After that, the measuring device (A) is moved to another remote point to be measured, and the handle (8) is rotated in the same manner as described above so that the laser receiver (6) can receive the laser beam from the laser emitter (B). Move to position. This moving amount is measured
By reading from the display unit (9) of (7), the horizontal level difference from the reference point can be easily detected.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below based on an embodiment shown in the drawings. 1 and 2, reference numeral (A) indicates a measuring device according to the present invention, and the measuring device (A) is rotatable by a base (1) and an upper fixing plate (2). Slider (5) screwed onto a retained vertical screw axis (3)
including. This slider (5) has left and right guide shafts (4)
It is held so that it can move up and down with rotation being prevented by (4), and is formed so as to move up and down by rotating the handle (8) attached to the upper end of the screw shaft (3). ing.

Further, a laser receiver (6) for receiving a laser beam and a movement amount measuring device (7) for measuring the movement amount of the slider (5) are attached to the slider (5). The measuring instrument (7) is provided with a display section (9) for digitally displaying the movement amount, and a reset button (10) for resetting the display section (9) to a zero point at an arbitrary position.
The movement amount measuring device (7) is for measuring and displaying the movement amount from the position reset to the zero point by the reset button (10), and in the embodiment as its mechanism, the upper end is the upper fixing plate (2). The tape measure (11) fastened to the tape is stored in the movement amount measuring device (7), and the scale of the tape measure is read and analog display is made on the display section (9) by electrical means. Then, various means are possible, for example, the measurement gear is meshed with the screw shaft (3) and the rotation amount of this gear is measured to measure the vertical movement amount.

The above measuring device (A) is used in combination with a laser beam emitter (B) as shown in FIG. This emitter (B) has a laser emitter (13) on the vertical axis of rotation (12).
Is held and emits a laser beam from the radiation hole (14) of the rotating laser light emitter (13). The luminous body (1
The rotary shaft (12) provided with (3) has a balancer built in the base (15) so as to always automatically correct and hold the vertical posture. Laser emitter incorporating such a balancer
Since (B) is already known and widely used, detailed description thereof will be omitted.

When measuring the horizontal level of a plurality of remote points with this measuring device (A), the laser emitting device (B) is placed at a specific position and the measuring device (A) is fixed at the remote point serving as a reference point. The handle (8) is rotated to move the laser receiver (6) provided on the slider (5) to a position where the laser beam from the laser emitter (B) can be received. When the laser beam is received, it is preferable that the buzzer sounds or the pilot lamp (16) is turned on as shown in FIG. At this light receiving position, press the reset button (10) to display
Reset (9) to the zero point. After that, move the measuring device (A) to another remote point to be measured, and handle it as described above.
Turn (8) to turn the laser receiver (6) into the laser emitter (B)
Move it to a position where it can receive the laser beam from. By reading this movement amount from the display unit (9) of the measuring instrument (7), the horizontal level difference from the reference point can be easily detected.

Although the examples considered to be typical of the present invention have been described above, the present invention is not necessarily limited to the structures of these examples. For example, the display of the display unit (9) may be changed to an analog method instead of a digital method, and a simple bubble tube level is used to maintain the horizontal level of the measuring device (A) itself. ) May be provided above. In addition, the present invention can be implemented with appropriate modifications within the scope of achieving the effects of the present invention and having the constitutional requirements thereof.

[0012]

Since the measuring device of the present invention is constructed as described above, one person can accurately measure the horizontal levels of a plurality of remote points, and the operation is performed by rotating the handle. Therefore, it is only necessary to move the laser receiver to a position where it can receive the laser beam from the laser emitter, so even an unskilled person can easily operate it and the amount of movement is displayed on the display, so level differences can be easily detected. In addition, since the structure is simple, there are various remarkable effects such as compact and inexpensive manufacturing.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a measuring apparatus according to the present invention.

FIG. 2 is a partial cross-sectional side view of the measuring device.

[Explanation of symbols]

 (1) Base (2) Upper fixing plate (3) Screw shaft (4) Guide shaft (5) Slider (6) Laser receiver (7) Travel distance measuring device (8) Handle (9) Display (10) Reset button

Claims (1)

[Claims] 1. A screw is engaged with a vertical screw shaft (3) rotatably held by a base plate (1) and an upper fixing plate (2), and the rotation is blocked by a guide shaft (4). A slider (5),
A laser receiver (6) and a movement amount measuring device (7) attached to the slider (5), and a handle (8) for rotating the screw shaft (3), and the movement amount measuring device. (7) A horizontal level measuring device provided with a display section (9) for displaying the movement amount in a digital or analog manner and a reset button (10) for resetting the display section (9) to a zero point at an arbitrary position. .