JP2001050701A - Centering unit with scale for circular tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the work to improve the efficiency and improve the accuracy in construction and safety management by allowing a measuring instrument to vertically stand by itself on a circular tube, and determining a central position and a height only by adjusting one point. SOLUTION: Rubber plates 4 on both sides of a bottom of a cylindrical horizontal plate 1, arms with rubber plates 2 on the left and right sides of the cylindrical horizontal plate 1, a level vial 5 on an upper central part, and a scale 3 in the vertical direction are integrally formed. Whereby the cylindrical horizontal plate 1 with the level vial can stand by itself on a central position of the circular tube without dropped or moved, by means of the antislipping rubber plates 4 on the bottom and the left and right arms 2 with rubber plates 2, a height and centripetal force are simultaneously displayed by the integrated vertical scale 3, and the adjustment can be executed by anyone while observing the same.

Description

Description: TECHNICAL FIELD The present invention relates to a pipe laying work in civil engineering work, in which a measuring instrument is put on a circular pipe to stand on the pipe without falling down or sliding down, and the center position is obtained by simply aligning one point. And a laying height, which is related to construction management that can simplify work, increase efficiency, reduce time, save labor and equipment, and improve accuracy. . Explaining in detail in the present embodiment, a non-slip rubber plate (4) is placed on a circular pipe to be laid in accordance with the center line obtained by the survey.
A cylindrical horizontal plate (1) with a mark is placed, an arm (2) with a rubber plate that contacts the outer diameters of the left and right pipes, a bubble tube (5) fixed to the upper center of the cylindrical horizontal plate (1), and a vertical measurement. This is a construction measuring instrument for measuring centripetal and height by making the scale (3) stand alone on a circle. Conventionally, the work of adjusting the installation height to the center of a suspended circular pipe centered on an unstable circular pipe is performed by a person who has experience of vertical swing with a down swing or a long pipe with a bubble pipe attached. It was laid by finding the center of the pipe while measuring the height with a measure, staff, and stupid bar alternately. Therefore, there were the following disadvantages.

(B) It is necessary to stop the work every time the circular pipe is moved or adjusted, and the measurement is inefficient.

(B) It was difficult to communicate the signal of the measurer and the intentions of the machine operator and the laying worker, and sometimes a technical compromise was observed.

(C) The risk of getting on and off each time using shoes with mud, clay, and ready-mixed concrete on the pipes, and the extraneous matter on the pipes impaired the aesthetics of the construction photographs, requiring cleaning work.

(D) On a narrow work floor or a place with bad feet, the measuring instrument may be lost or fall down from a pipe, causing loss of function or dirt.

(E) In some cases, the measurement position shifts due to shaking, or a reading error occurs due to misperception or misperception.

On the circular tube, the tubular horizontal plate (1) with the bubble tube (5) stands by itself at the center of the tube without falling or moving by the bottom non-slip rubber plate (4) and the left and right rubber plate arms (2), This is a centripetal measuring instrument with a vertical measuring rule for a circular tube, characterized in that height and centripetality are simultaneously displayed by an integral vertical measuring rod (3) so that anyone can adjust it while watching it. As described above, in the present application, when a circular pipe is laid, the measuring instrument grounded on the pipe can be stabilized independently at the center of the pipe, and the integrated vertical scale always indicates the height and the centripetal position. Simplification and efficiency improvement, labor and labor saving of equipment, safety management and improvement of accuracy.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a sectional view showing the use of the present invention.

FIG. 3 is an exploded perspective view of the present invention. (1) Horizontal cylindrical plate (2) Arm with rubber plate (3) Measuring scale (4) Rubber plate (5) Bubble tube (6) Circular tube (7) Center line

Claims (1)

[Claims] Rubber plates (4) are provided on both sides of the bottom of the cylindrical horizontal plate (1), arms (2) with rubber plates are provided on the left and right sides of the cylindrical horizontal plate (1), a bubble tube (5) is provided at the center of the upper part, and measurement is performed in the vertical direction. Set the length (3),
An integrated centrifuge with a measuring rule for circular pipes.