JPH0744825U - Level measurement scale - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to perform level measurement efficiently and accurately without being affected by wind or the like outdoors. [Structure] A transparent outer cylinder 1 is filled with a liquid or gas, and the entire length of a scale 5 that floats under the buoyancy of the liquid or gas is accommodated. When a weight 8 is provided to abut the pointed concave portion 2a provided on the bottom surface of the outer cylinder 1 and the outer cylinder 1 is erected, the scale 5 is vertically erected inside the outer cylinder 1. The level can be measured accurately by reading.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a scale for level measurement for measuring the ups and downs of a construction site, such as a construction site or a machine installation site, before starting work.

[0002]

[Prior art]

 The above-mentioned level measurement is performed by two persons, the main person who reads the value of the scale set at a place far from the level meter and the assistant who moves the point to be measured and holds the long scale toward the level meter. Be done.

Since the level meter is a telescope having a magnification of several tens of times, an error occurs in the numerical value read when the scale held by the assistant is tilted to the front, rear, left, and right. Therefore, the subject moves toward the assistant. While looking into the level meter, use a hand signal to instruct to tilt it to the right or to the left, and then look into the level meter to instruct it to be fixed when the scale becomes vertical, and then read the value. is there.

[0004]

[Problems to be solved by the device]

 By the way, in the above level measurement, the work of the assistant holding the scale vertically becomes more difficult as the ground shape becomes more complicated, and in most cases, the assistant needs to hold the scale vertically. Since the scale stands in front of the level meter, the shake of the left and right corrects the tilt after the operator looks into the level meter.Therefore, a slight amount of shake of the left and right occurs, but time is required for adjustment. .

Further, since it is difficult to confirm the tilt of the scale before and after with a level meter, vertical holding of the scale in the anteroposterior direction depends only on the intuition of an assistant, and highly accurate level measurement can be performed. There is a problem that you cannot do it.

Therefore, in order to solve the above problems, the present invention provides a level measurement scale that can accurately and easily hold the scale vertically, shorten the level measurement time, and enable accurate measurement. The purpose is to do.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention accommodates the entire length of a scale floating in the fluid by providing a scale on the outer surface with a sharp end on the lower part in a transparent outer cylinder in which the fluid is enclosed. However, a structure is employed in which a weight is provided at the lower portion of the scale so that the lower pointed end is brought into contact with the pointed recess provided on the inner bottom surface of the outer cylinder.

[0008]

[Action]

 When the outer tube is held upright, the scale floating in the fluid enclosed in the outer tube has its lower pointed edge abutted against the inner bottom surface of the outer tube due to the weight of the weight, and stands upright vertically with this abutment point as the fulcrum. Even if the outer cylinder is tilted to the left or right or front and back, the scale stands upright on the measuring point, and the level can be read accurately on the scale by reading the scale.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in the figure, the vertically long outer cylinder 1 is formed of a transparent material such as synthetic resin that allows the inside to be seen through, and the lower end has a pyramidal or conical projecting pointed end 2. At the upper end, the center of the cover wall 3 is closed by a lid 4.

The outer cylinder 1 has a structure in which the sealed liquid or gas does not leak because the liquid or gas is filled inside and sealed.

The scale 5 housed inside the outer cylinder 1 is slightly shorter than the outer cylinder 1 and has a scale 6 attached to the surface thereof. It receives buoyancy and floats.

The scale 5 is formed of a material having a lower specific gravity than liquid or gas, or has a hollow structure having an air chamber inside.

The lower end of the scale 5 is formed at a pointed end 7 having a slightly sharper angle than the inner pointed recess 2 a of the pointed end 2 of the outer cylinder 1, and a weight 8 is provided below the scale 5. The weight 8 prevents the scale 5 from floating on the liquid or gas, and the lower pointed end 7 is brought into contact with the pointed recess 2a of the outer cylinder 1 in a point contact state.

The scale 5 has a weight 8 built in at the bottom so that the center of gravity is located at the bottom, and when the outer cylinder 1 is erected, the pointed end 7 that abuts the pointed recess 2a is used as a fulcrum. And it will stand upright.

Although the outer cylinder 1 and the scale 5 are formed in a rectangular shape in the drawing, they may be formed in a cylindrical shape. The scale 6 attached to the scale 5 is provided with reference to the pointed end 2 of the outer cylinder 1.

The scale of the present invention is configured as described above, and an assistant may stand the outer cylinder 1 on the measuring point during the level measurement work. Even if the outer cylinder 1 is not vertically set, Since the scale 5 is floated in the liquid or gas, it will stand vertically with the pointed end 7 as a fulcrum.

Therefore, even an inexperienced assistant can perform the work that does not hinder the work of the person who measures the level, and the level can be measured with high accuracy.

FIG. 4 shows another embodiment of the present invention. In the figure, the lower end of the outer cylinder 1 which is vertically long may be flat as shown by an imaginary line, instead of being pyramidal. Further, the upper portion 3a of the outer cylinder 1 is formed into a pyramid shape that is pointed upward, and the support pin 10 is horizontally attached to the inside of the upper portion 3a, and the pin 10 forms the inverted V-shaped inner cylinder suspending wheel 11. It may be hung.

Although the upper portion 3a of the outer cylinder 1 is a pyramid in FIG. 4, it may be flat as shown in FIG. The vicinity of the engagement between the pin 10 and the wheel 12 is shown in FIG.

[0021]

[Effect of device]

 As described above, according to the present invention, the liquid is enclosed in the transparent outer cylinder, the scale that floats on the liquid is stored in the outer cylinder, and the weight is provided at the lower part of the scale so that it stands upright in the outer cylinder. Therefore, when the outer cylinder is erected, the scale will always be vertical due to buoyancy, and even an inexperienced worker can perform vertical placement of the scale, greatly reducing the adjustment time according to the instruction of the subject who looks into the level meter. .

Further, since the scale can be arranged vertically, there is no tilting of the scale in the front-back direction, and level measurement can be performed accurately and accurately.

Further, since the fluid and the entire length of the scale are enclosed in the outer cylinder, the fluid will not be spilled or the scale will not come off, so that it can be easily carried and used immediately. Since the scale and fluid are completely unaffected by external wind, level measurement can be performed accurately and accurately in various environments.

[Brief description of drawings]

FIG. 1 is a perspective view of a scale according to the present invention.

FIG. 2 is a partially cutaway front view of a scale according to the present invention.

FIG. 3 is an enlarged vertical sectional front view of a main part of a scale according to the present invention.

FIG. 4 is a perspective view of a scale according to another embodiment of the present invention.

FIG. 5 is a partially enlarged perspective view of a scale according to another embodiment of the present invention.

FIG. 6 is a partially enlarged vertical front view of a scale according to another embodiment of the present invention.

[Explanation of symbols]

 1 Outer cylinder 2 Pointed end 2a Pointed recess 5 Scale 6 Scale 7 Pointed end 8 Weight

Claims (1)

[Scope of utility model registration request] 1. A transparent outer cylinder having a fluid enclosed therein,
The lower part has a pointed end and a scale is provided on the outer surface to accommodate the entire length of the scale that floats on the fluid. Level measurement scale with a weight.