KR20190000467U - Level scale for measuring multi-gauge - Google Patents

Abstract

The present invention relates to a horizontal member, and more particularly, to a horizontal member which is formed to be long in the left and right direction and which forms a skeleton of a predetermined width and a predetermined thickness, And a horizontal scale disposed so as to pendulum move with respect to the main body. In the horizontal scale, a front scale that can be observed from the front side, a rear scale that can be observed from the rear side, and an outer scale scale that can be observed from the top and bottom , Providing an operator with an easily measurable advantage.

Description

Level scale for measuring multi-gauge

The present invention relates to a horizontal object, and more particularly, to a horizontal object which is easy to carry and can be accurately measured regardless of the skill level of an operator.

The conventional conventional leveling machine is a rectangular housing made of a rod having a length of about 30 to 40 cm by fixing a liquid pipe and a small amount of bubbles (oil) in a transparent water pipe and fixing the water pipe to the fixing pipe. And when the bubbles (oil) in the liquid filled in the water pipe are located at the center of the entire length of the water pipe, the level is maintained and measured.

These horizontal units are widely used for horizontal installation of mechanical equipments such as furniture or refrigerator, horizontal arrangement of goods requiring horizontal arrangement of each corner, horizontal measurement for construction, etc. The type is also used from a precise level level to a right angle It has been used in a wide range of structures ranging from a regular horizontal frame to a level unit integrated with the inside of a regular frame.

In this case, the use of the leveling machine allows the user to easily recognize the direction in which the water pipe is provided. When the body is placed on the horizon or the horizontal surface to measure, the bubble (oil) moves in the water pipe, , The object to be measured is installed horizontally, and when the object is tilted to one side, it is not aligned horizontally, so that the machine is installed in a correct horizontal position or the facility is formed in a horizontal plane while the installation or the horizontal operation is retried.

However, in such a conventional leveling machine, the water pipe and the fixing device are combined with each other, and most of them are mounted in a hollow rectangular main body housing. In use, a gap is formed between the fixing pipe and the water pipe, There is a problem in that the flow of the in- jection tube in the fixture can not be fixed without shaking or the position of the water tube is deformed and accurate horizontal measurement can not be performed.

In addition, since the positions of the bubbles are observed differently according to the angle of the operator's observation at the outside of the water pipe, in order to perform a more accurate measurement, the worker must be in a position where he can observe the water pipe at the front.

In addition, it is also possible to recognize the position of the gas drop in the horizontal egg, to emit the light bulb attached to the outside of the horizon, and to confirm the vertical and horizontal states at the light emission position. -0000680 "Horizontal using luminous body ", and a detector made up of a first measuring unit and a second measuring unit for convenience of portability by integrating the vertical, horizontal, Shinan Bulletin 20-0207112 entitled " Portable Supervision Horizontal Vertical Detector ".

The present invention has been devised to solve the above-described technical problems, and it is an object of the present invention to provide a horizontal holder which is easily carried by a worker by integrating the measuring devices of the scales, .

Another object of the present invention is to provide a horizon that allows an accurate measurement to be made regardless of the operator's observation time or proficiency.

According to one embodiment of the present invention, there is provided a horizontal body, comprising: a body formed to be horizontally elongated and formed with a skeleton having a predetermined width and a predetermined thickness; And a horizontal scale arranged so as to pendulously move with respect to the main body. In the horizontal scale, a forward scale that can be observed from the front side, a rear scale that can be observed from the rear side, and an outer scale scale that can be observed from the top, bottom, .

Here, the leveling system may include a gage body for pendulum movement, and a rim cover for mediating engagement of the gage body with the body.

The gauge body may be formed in a cylindrical shape, and may be formed as a bearing groove which is formed so as to be centered toward the center, and in which a rotating bearing is interposed, and a weight weight mounting hole is formed so as to penetrate forward and backward in a direction directly under the center.

The gauge body is formed in a cylindrical shape and has a bearing groove formed to be centered toward the center and in which a rotating bearing is inserted and a weight weight mounting groove formed so that a part of the outer circumferential surface corresponding to the center of the gauge body is cut away .

In addition, the leveling system may further include a weight attached to the weight mounting hole in the back and forth direction.

In addition, the leveling system may further include a weight attached vertically to the weight mounting groove.

In addition, the weight may be made of a material that moves the center of gravity of the gauge body downward beyond the center of rotation.

The gauge body further includes a front cover disposed to cover a front surface of the gauge body, and a rear cover coupled to a rear end of the frame cover, the rear cover disposed to cover the rear surface of the gauge body. As shown in FIG.

Further, oil may be filled between the gage body and the rim cover, the front cover and the rear cover.

The rotation bearing may include a front bearing interposed between the front cover and a bearing groove formed on the front surface of the gauge body and a rear bearing interposed between the rear cover and a bearing groove formed on a rear surface of the gauge body .

The rear cover may have a rear bearing mounting pin protruded rearward and a rear bearing mounting pin for receiving the rear bearing may protrude forward from a front surface of the rear cover. have.

The front cover and the rear cover may be made of a transparent material that allows the gauge body to be observed from the outside.

The front scale may further include a front leader which is stamped on the front surface of the gauge body and indicates the amount of rotation of the gauge body in accordance with the pendulum motion when the gauge body is rotated, It may include a front measurement angle scale that measures the relative rotation angle.

The rear scale may further include a rear indicator that is engraved on a rear surface of the gauge body and indicates an amount of rotation of the gauge body during rotation according to the pendulum movement, And may include a back measurement angle scale that measures the relative rotation angle.

The front or rear surface of the gauge body may further include a supplementary horizontal line passing through the center of the front or rear guiding line.

In addition, the front leader line or the rear line leader may be an isosceles triangle-shaped indicating needle having the smallest internal angle of the vertex located in the upper right room of the center of the gauge body.

In addition, the rim cover may be made of a transparent material that can observe the outer circumferential surface of the gauge body from the outside.

The outer graduation scale includes an outer graduation scale graduated on an outer circumferential surface of the gauge body and designating an amount of rotation of the gauge body during rotation in accordance with the pendulum movement and an outer graduation scale graduated on an inner circumferential surface of the frame cover, And an outer circumference measurement angle scale for measuring a relative rotation angle with respect to the axis.

The main body may further include an installation body which is hollow and has a left end and a right end opened and which is inserted and fixed inside the main body and mediates the installation of the leveling system with respect to the main body have.

The body includes a front opening portion and a rear opening portion in which front and rear portions are partially cut away so that the front and back scales are exposed front and rear, respectively, and an upper surface opening and an upper opening portion in which the upper and lower bottom portions are partially exposed, An opening can be further formed.

In addition, the mounting body may have an upper penetrating portion and a lower penetrating portion that are cut through the upper surface and the lower surface so that the outer scale is exposed upward and downward.

In addition, a plurality of nondestructive coupling protrusions protruding outward are formed on the outer circumferential surface of the rim cover, and a protrusion insertion groove into which the nondestructive coupling prevention protrusion is inserted may be formed on an inner side surface of the mounting body in which the rim cover is fitted have.

According to a preferred embodiment of the horizontal according to the present invention, the following various effects can be achieved.

First, it is possible to simultaneously perform the functions of the vertical system, the horizontal system, and the oblique system through the two horizontal systems provided at mutually different positions, and to measure the scale and to make it easy to carry the worker with the minimum weight It has an effect.

Second, accurate readings can be made by increasing the readability of scales and the like regardless of the observation time of the operator.

1 is a perspective view showing the appearance of a horizontal ruler according to a preferred embodiment of the present invention,
FIG. 2 is an exploded perspective view of a horizon according to a preferred embodiment of the present invention,
FIG. 3 is an exploded perspective view showing a horizontal system in the configurations of FIGS. 1 and 2,
FIG. 4 is a front view, a rear view, and a side view of the gauge body in the configurations of FIGS. 1 and 2,
FIG. 5 is an exploded perspective view showing a horizontal system among configurations of horizon according to another embodiment of the present invention. FIG.

Hereinafter, embodiments of the horizontal ruler according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an outer appearance of a horizontal ruler according to a preferred embodiment of the present invention, FIG. 2 is an exploded perspective view of a horizontal ruler according to a preferred embodiment of the present invention, and FIG. FIG. 4 is a front view, a rear view, and a side view of the gauge body in the configurations of FIGS. 1 and 2. FIG.

According to the present invention, a preferable temporary example of the horizontal ruler 1 includes a main body 10 which is elongated in the left and right direction and forms a skeleton of a predetermined width and a predetermined thickness, And a leveling unit 100 arranged to pendulum move with respect to the main body 10 in accordance with the eccentric arrangement of the center of gravity.

Here, as shown in FIG. 1, the main body 10 may have a hollow shape and a rectangular parallelepiped shape which is long in the left and right directions.

Hereinafter, for the sake of understanding, the direction indicating the left end and the right end of the main body 10 will be referred to as a "longitudinal direction," and the direction indicating the front end and the rear end of the main body 10 will be referred to as " The direction indicating the upper and lower ends of the main body 10 is referred to as a " width direction ".

The predetermined width refers to the distance between the upper end and the lower end, which is the length in the width direction of the main body 10, and the predetermined thickness refers to the distance between the front end and the rear end, which is the length in the thickness direction of the main body 10. [ will be.

Herein, the main body 10 is formed to have a predetermined width larger than the predetermined thickness, and the predetermined thickness is such that the worker can easily mount the work space for horizontal measurement and vertical measurement at the work site desirable.

In the embodiment of the horizontal ruler 1 according to the present invention, as shown in Fig. 1, the horizontal scale 100 includes a front scale that can be observed from the front side, a rear scale that can be observed from the rear side, The outer circumferential scale observable from the side may be imprinted.

The leveling instrument 100 includes a gage body 110 that pendulum moves and a rim cover 120 that mediates engagement with the body 10 of the gage body 110, can do.

The gauge body 110 is provided so that the lower end of the gauge body 110 pivots about a predetermined rotation axis in the gravitational direction from the inside of the frame cover 120 fixed to the inside of the main body 10. A detailed description thereof will be given later.

4, the gauge body 110 may be formed in a columnar shape having a length between a front end and a rear end substantially smaller than a predetermined width of the main body 10.

The gage body 110 is provided with bearing mounting grooves 111a and 111b which are formed so as to be centered toward the center and in which the rotational bearings 150a and 150b are inserted and a weight mounting hole 112 May be formed.

The bearing mounting grooves 111a and 111b are formed in the center of the front and rear surfaces of the gage body 110 so that the rotational bearings 150a and 150b can be installed between the front cover 130 and the rear cover, Respectively.

3 and 4, the level meter 100 may further include a weight 117 inserted into the weight weight mounting hole 112 in the forward and backward directions.

The weight 117 is attached to a weight weight mounting hole 112 eccentrically eccentrically downward from the center of the gauge body 110 so that when the operator moves the body 10, ) To perform the pendulum movement according to the gravity, thereby performing the function of the level system 100 or the vertical system.

That is, the weight 117 plays a role of forming the center of gravity of the gage body 110 to be positioned lower relative to the center of rotation.

Therefore, it is preferable that the weight 117 is made of a material having a weight greater than that of the gauge body 110. However, the gauge body 110 is not necessarily made of a material having a larger weight than the gauge body 110, and may be any material as far as the center of gravity is moved downward with respect to the center of rotation. Preferably, when the gauge body 110 is made of a resin material, the weight 117 may be made of a metal material.

The gauge body 110 may be formed of a relatively light material in consideration of the weight 117, or may be formed in an empty shape.

However, when the gauge body 110 is relatively light compared to the weight 117, there is a possibility that smooth pendulum motion may not be performed. Therefore, in order to alleviate the internal impact due to the impact and improve the durability, The same fluid can be filled.

At this time, it is preferable that a fluid such as oil is fully charged in the gage body 110. This is to minimize the influence of the pendulum movement of the gauge body 110 due to the fluid filled in the horizontal holder 1 when the operator moves the appliance with the horizontal holder 1 according to the present invention.

2 and 3, the level meter 100 includes a front cover 130 coupled to a front end of the rim cover 120 and disposed to cover a front surface of the gage body 110, And a rear cover coupled to the rear end of the cover 120, the rear cover disposed to cover the rear surface of the gauge body 110.

The front cover 130 and the rear cover cover the front and rear ends of the frame cover 120 opened in the front and rear direction respectively and the gage body 110 is rotatably supported within the frame cover 120 by the rotation bearings 150a, And 150b, respectively.

Since the front cover 130 and the rear cover are to prevent foreign matter from entering the inside of the rim cover 120, airtight coupling is required to the extent that foreign matter is prevented from being introduced.

However, in order to protect the gage body 110 due to vibrations or shocks caused by the carrying of the operator, the gage body 110 and the frame cover 120, the front cover 130, The cover may be filled with oil.

That is, oil is fully charged between the gauge body 110 and the inner surface of the frame cover 120 that enables the gauge body 110 to rotate, thereby imparting inertia to the rotation by the pendulum movement of the gauge body 110, The motion can be stopped. When oil is filled between the gauge body 110 and the frame cover 120, the impact of the gauge body 110 on the inner side due to an impact from the outside is also obtained.

At this time, the airtightness of the front cover 130 and the rear cover, which are coupled to the front and rear ends of the rim cover 120, require airtightness to the extent that oil leakage is prevented.

2 and 3, the rotary bearings 150a and 150b are disposed between the front cover 130 and the bearing mounting grooves 111a and 111b formed on the front surfaces of the gage body 110, A bearing 150a and a rear bearing 150b interposed between the rear cover and the bearing mounting grooves 111a and 111b formed on the rear surface of the gage body 110. [

The front cover 130 includes a front bearing 150a on which a front bearing 150a is inserted and a rear mounting pin 131 protruding rearward from the front cover 130. A rear bearing 150b, The bearing pin 141 is formed so as to protrude forward.

The front bearing 150a and the rear bearing 150b are formed of an inner ring formed with an installation hole into which the front bearing 150a mounting pin 131 or the rear bearing 150b mounting pin 141 is inserted, 111b formed on the front surface of the gauge body 110 or the bearing mounting grooves 111a, 111b formed on the rear surface of the gauge body 110, A plurality of ball bearings may be provided in an annular shape.

The rim cover 120, the front cover 130 and the rear cover may be made of a transparent material that allows the operator to observe the gage body 110 on the inside from the outside.

This is so as to measure the extent to which the gauge cover rotates while pendulum movement is measured through the front and rear scales and the outer scales described above.

1, the front scale includes a front indicator line 113 that is engraved on the front surface of the gauge body 110 and indicates the amount of rotation during rotation according to the pendulum movement of the gauge body 110, And a front measurement angle scale 133 that is imprinted on the rear surface of the front cover 130 and measures a rotation angle relative to the front leader line 113. [

Like the front leader line 113, the rear scale is engraved on the rear surface of the gauge body 110 and includes a rear indicator line 114 for indicating the amount of rotation in accordance with the pendulum movement of the gauge body 110 And a rear measuring angle scale 143 which is engraved on the front surface of the rear cover and measures a rotation angle relative to the rear indicating line 114. [

That is, it is preferable that the front leader line 113 and the rear side line 114 are respectively engraved on the inner side adjacent to the gage body 110 in order to prevent abrasion due to external friction.

Since the measurement error caused by the thickness of the front cover 130 and the rear cover can be reduced when the front surface indicator 113 and the rear surface indicator 114 are impressed on the inner surface adjacent to the gauge body 110 Accurate measurements may be possible.

The front or rear surface of the gauge body 110 may be further formed with a supplemental horizontal line 113a which is orthogonally crossed with respect to the front leader line 113 or the rear side line 114 but passes through the center.

The auxiliary horizontal line 113a assists the operator in recognizing the vertical value even when obliquely observed, thereby compensating for the variation in the measured value depending on the observation position due to the thickness of the front cover 130 and the rear cover as described above .

It is preferable that the front leader line 113 or the rear side line 114 and the auxiliary horizontal line 113a are marked with as thin a line as possible so that the error of the measured value when the angle is measured by the operator is remarkably reduced.

The front leader line 113 or the rear face line 114 may be formed of an isosceles triangle-shaped indicating needle having the smallest internal angle of the vertex located in the upper right room of the center of the gauge body 110.

In addition, the front measurement angle scale 133 and the rear measurement angle scale 143 formed on the front cover 130 and the rear cover, respectively, can measure the angle of rotation of the gage body 110 along the rim of each cover It can be engraved with a scale.

Preferably, both the front measurement angle scale 133 and the rear measurement angle scale 143 are precisely stamped so that the unit of 1 degree can be measured, but not necessarily limited thereto, either of which is approximately 45 degrees . ≪ / RTI >

1, the outer graduation scale is engraved on the outer circumferential surface of the gauge body 110 and includes an outer graduation scale 115 for indicating the amount of rotation during rotation according to the pendulum movement of the gauge body 110, And an outer circumference measurement angle scale 125 which is engraved on the inner circumferential surface of the rim cover 120 and measures the rotation angle relative to the outer circumference indication scale 115. [

The outer circumference indication scale 115 is rotated on the outer peripheral surface of the gauge body 110 and is pivoted when the gauge body 110 is pivoted and the outer circumference measurement angle scale 125 is rotated by the rotation angle .

2, the horizontal member 1 of the embodiment according to the present invention is inserted and fixed in the main body 10, and the horizontal member 1 is fixed to the main body 10 And may further include an installation body 20.

The main body 10 is provided with a front opening portion 11 and a rear opening portion 12 in which front and rear portions are partly cut away so as to expose front and rear scales respectively and front and rear portions so that the outer periphery scale is exposed upward and downward, An upper surface opening 13 and a lower surface opening 14 may be further formed.

In addition, a front end hole 21 and a rear end hole 22 are formed in the mounting body 20 so that the rim cover 120 is inserted in the front and back directions, and the upper and lower surfaces of the mounting cover 20 are exposed so that the outer peripheral scale is exposed upward and downward It is preferable that an incised upper penetrating portion 23 and a lower penetrating portion 24 are formed.

An upper transparent window 163 and a lower transparent window 164 are provided in the upper surface opening 13 and the lower surface opening 14 of the main body 10 as shown in FIGS. 1 and 2, respectively, It is possible to prevent foreign matter from flowing through the upper penetrating portion 23 and the lower penetrating portion 24.

1 and 2, the leveling instrument 100 having the above-described configuration can be disposed at a central portion of both left and right ends of the main body 10. [

At this time, it is a matter of course that the mounting body 20 can be installed inside the main body 10 in such a manner that the mounting body 20 is inserted through open portions on both left and right sides.

Further, in the embodiment of the horizontal ruler 1 according to the present invention, a level meter 100 having the same configuration as described above may be further provided on either one of left and right ends of the main body 10. [

However, a leveling instrument 100 installed on one of left and right ends of the main body 10 is provided with a front leveling line and a rear leveling line formed on the front surface or the rear surface of the gage body 110, 100 and the rear leader line at an angle of 45 degrees.

The horizontal scale 100 at this time performs a function as a slant system. That is, the leveling instrument 100 installed at the center of the body 10 can be used by the operator as the inherent leveling instrument 100 or the vertical system by measuring the body 10 horizontally or vertically. In the case of the leveling system 100 functioning as a diagonal line, since it takes a long time to perform the measurement only by observing the scale, if the front and back directions are not distinguished, the leveling system 100 provided at the center of the main body 10, It is preferable to be formed so as to be distinguished from each other.

In addition, when the main body 10 is installed on one of the right and left ends of the main body 10, a side penetration portion 25 is further formed on the outer side of the installation body 20, 165 may be further provided.

Therefore, the operator has the advantage that the amount of rotation of the gage body 110 observed through the side transmission window 165 and the side penetration portion 25 can be measured.

As shown in FIG. 2, a finishing cap 170 is inserted into the left and right ends of the main body 10, which is not provided with the leveling system 100, to prevent the mounting body 20 from deviating from the outside.

5 is an exploded perspective view showing a horizontal system 100 among the configurations of the horizontal ruler 1 according to another embodiment of the present invention.

Since almost all configurations of the leveling system 100 referenced in FIG. 5 are the same as those of the leveling system 100 described in FIGS. 1 to 4, the technical features that are distinguished here will be mainly described.

In the horizontal system 100 according to another embodiment, the weight weight installation groove 112 may be formed such that a part of the outer circumferential surface corresponding to the center of the gauge body 110 is incised.

Although the various designs for installing the weight 117 are possible, the horizontal system 100 shown in Figs. 1 to 4 is provided so as to be inserted in the forward and backward directions, while the horizontal system 100 shown in Fig. So that the weight 117 directly configures a part of the lower outer circumferential surface of the gauge body 110.

At this time, it is a matter of course that a part of the outer circumference indicating scale 115 formed on the outer circumferential surface of the gage body 110 among the outer scales can be directly imprinted on the weight 117. The gauge body 110 has fastening holes 119a and 119b for fastening the fastening members 118a and 118b on the front and rear surfaces of the gauge body 110 for stable installation of the weight 117 on the weight- And fastening holes 119a and 119b for fastening the fastening members 118a and 118b may be formed at portions corresponding to the weights 117, respectively.

5, there is a difference in that the weights 117 are inserted into the weights installation grooves 112 in the vertical direction.

On the other hand, the outer circumferential surface of the rim cover 120 may be formed with a plurality of indefinite-coupling prevention protrusions 127 projecting outward. 5, when the circular rim cover 120 is installed on the mounting body 20, the unlocking prevention protrusion 127 is installed in the wrong direction, thereby reducing the error of the assembler to reassemble again .

To this end, a protrusion insertion groove (not shown) may be formed on the inner surface of the mounting body 20 where the rim cover 120 is inserted, into which the tamper-evident prevention protrusion 127 is inserted. The projection insertion grooves may also be provided in a number corresponding to the unlocking prevention protrusions 127.

In addition, the front cover 130 and the rear cover 140, which are coupled to the front and rear ends of the rim cover 120, may also have corresponding shapes (see reference numerals 137 and 147) corresponding to the tamper- It would be natural.

Embodiments of the horizontal ruler according to the present invention have been described in detail above with reference to the accompanying drawings. It should be understood, however, that the embodiments of the present invention are not necessarily limited to the above-described embodiments, and that various modifications and equivalents may be made by those skilled in the art to which the present invention belongs . Therefore, it is to be understood that the true scope of the present invention is defined by the following claims.

1: Horizontal ruler 10: Body
11: front opening portion 12: rear opening portion
13: upper surface opening portion 14: lower surface opening portion
20: installation body 21: shear hole
22: rear end hole 23:
24: lower penetrating part 25: side penetrating part
100,200: Level gauge 110: Gauge body
111a, 111b: Bearing mounting groove 112: Weight weight mounting hole (groove)
113: front leader line 113a: auxiliary horizontal line
114: Rear guide line 115: Outer direction indication scale
117: weight 118a, 118b: fastening member
119a, 119b: fastening hole 120: rim cover
125: Angle measuring graduation 130: Front cover
131: Front bearing mounting pin 133: Front measuring angle scale
140: Rear cover 141: Rear bearing mounting pin
143: rear measuring angle scale 150a, 150b: rotating bearing
150a: front bearing 150b: rear bearing
163: upper transmission window 164: lower transmission window
165: side transmission window 170: finishing cap

Claims (22)

A main body which is elongated left and right and forms a skeleton of a predetermined width and a predetermined thickness;
And a leveling unit disposed to pierce a predetermined thickness of the body in a circular shape and arranged to pendulum movement with respect to the main body according to the eccentric arrangement of the center of gravity,
The horizontal scale includes a front scale observable from the front side of the operator, a rear scale observable from the rear side, and a horizontal scale engraved with an outer scale scale observable from the upper and lower surfaces or side surfaces. The method according to claim 1,
In the above-
A gauge body for pendulum movement;
And a rim cover that mediates engagement of the gage body with the body. The method of claim 2,
The gauge body is formed in a cylindrical shape,
A bearing groove formed so as to face the center and having a rotating bearing;
And a weighing installation hole is formed through the front and rear portions of the center just below the center. The method of claim 2,
The gauge body is formed in a cylindrical shape,
A bearing groove formed so as to face the center and having a rotating bearing;
And a weighing installation groove is formed in the center so as to incision a part of the outer circumferential surface corresponding to the center. The method of claim 3,
Wherein the horizontal system further comprises a weight attached to the weight installation hole in the longitudinal direction. The method of claim 4,
Wherein the horizontal system further comprises a weight inserted vertically into the weight weight installation groove. The method of claim 5,
Wherein the weight is made of a material that moves the center of gravity of the gauge body below the center of rotation. The method of claim 3,
In the above-
A front cover coupled to a front end of the rim cover and disposed to cover a front surface of the gauge body;
And a rear cover coupled to a rear end of the rim cover, the rear cover disposed to cover a rear surface of the gauge body. The method of claim 8,
And a gap between the gauge body and the rim cover, the front cover and the rear cover filled with oil. The method of claim 8,
The rotation bearing
A front bearing interposed between the front cover and a bearing groove formed on a front surface of the gauge body;
And a rear bearing interposed between the rear cover and a bearing groove formed on a rear surface of the gauge body. The method of claim 10,
A front bearing mounting pin is formed on a rear surface of the front cover so as to protrude rearward,
And a rear bearing mounting pin protruding frontward is formed on a front surface of the rear cover to receive the rear bearing. [Claim 9]
Wherein the front cover and the rear cover are made of a transparent material that allows the gauge body to be observed from the outside. The method of claim 12,
The forward graduation
A front leader line engraved on the front surface of the gauge body and indicating the amount of rotation of the gauge body during rotation according to the pendulum movement;
And a front measurement angle scale scale that is engraved on the back surface of the front cover and measures a rotation angle relative to the front leader line. The method of claim 12,
The back scale
A rear surface marker which is engraved on a rear surface of the gauge body and indicates an amount of rotation of the gauge body in accordance with the pendulum movement;
And a backside measuring angular scale that is angled to the front of the rear cover and measures the angle of rotation relative to the backside leader. The method according to claim 13 or 14,
Wherein the front or rear surface of the gauge body is further provided with a supplemental horizontal line passing through the center of the front or rear guiding line. The method according to claim 13 or 14,
Wherein the front leader line or the rear side leader line is an isosceles triangle-shaped indicating needle having the smallest internal angle of a vertex located in a room immediately above the center of the gauge body. The method of claim 12,
Wherein the frame cover is made of a transparent material that can observe the outer peripheral surface of the gauge body from the outside. 18. The method of claim 17,
The outer graduation scale,
An outer circumferential indication scale which is engraved on an outer circumferential surface of the gauge body and indicates a rotation amount of the gauge body in accordance with the pendulum movement;
A horizontal holder including an outer circumference measurement angle scale which is angled on an inner circumferential surface of the rim cover and measures a rotation angle relative to the outer circumference indication scale. The method according to claim 13 or 14,
The main body has a hollow shape and is formed so that its left end and right end are open,
And a mounting body that is inserted and fixed inside the main body and mediates installation of the leveling system with respect to the main body. The method of claim 19,
The main body is provided with a front opening portion and a rear opening portion in which front and rear portions are partially cut away so that the front and rear scales are respectively exposed back and forth, and an upper surface opening and a bottom opening portion, Horizontal with more horizontal. The method of claim 20,
Wherein the installation body is provided with an upper penetrating portion and a lower penetrating portion formed so as to penetrate the upper surface and the lower surface so that the outer scale is exposed upward and downward. 19. The method of claim 18,
A plurality of anti-tampering protrusions protruding outward are formed on an outer peripheral surface of the rim cover,
And a protrusion insertion groove into which the nondestructive coupling protrusion is inserted is formed on an inner side surface of the mounting body in which the rim cover is fitted.

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