KR102304553B1 - Geodetic surveying device for stable height adjustment of level measuring staff - Google Patents

Abstract

The present invention relates to a geodetic survey device. More specifically, the present invention relates to a geodetic survey device which comprises: a tangent sight configured to have its length adjustable by extending and contracting up and down; a lighting instrument engaged to surround a lower outer side surface of the tangent sight and irradiate light; a rotary instrument engaged with a lower end of the tangent sight; a buffering instrument engaged with a lower end of the rotary instrument; a detachable engagement unit engaged with a lower end of the buffering instrument; and a landing unit detachably engaged with the detachable engagement unit and allowing the tangent sight to be kept vertical. The present invention relates to a geodetic survey device for a stable height adjustment for level survey, which is capable of rapidly and precisely installing the tangent sight vertically, converting the direction of the tangent sight at the same position without lifting and re-installing the tangent sight, and definitely excluding a survey error in accordance with a change in the position of the tangent sight.

Description

GEODETIC SURVEYING DEVICE FOR STABLE HEIGHT ADJUSTMENT OF LEVEL MEASURING STAFF

The present invention relates to a geodetic surveying apparatus, and more particularly, to a geodesic surveying apparatus for stable height adjustment of a leveling scale.

In general, geodetic surveying should be performed first for various civil engineering design or architectural design. Geodetic surveying refers to all activities of measuring horizontal distance, elevation difference, and direction, determining the position of each measurement point, displaying it in drawings or numerical values, and staking out on-site.

Among these geodetic surveys, level surveying is a survey to find the difference in height between two points using surveying devices such as a target, leveler, and total station, and its accuracy is 5mm * S/2 (here, S is a one-way distance, and the unit is km), so detailed measurement is required.

1 is a view for explaining a method of measuring a level using a conventional standard and measuring instruments, Figure 2 is a perspective view showing the state of the conventional standard.

In the first step, the target number 1 is set at the ground reference point (a0) of known altitude, and the number of the machine Read the scale of the target scale (1) with the measuring instrument (2).

In the second step, the target number moves to the first point (a1) and sets up the target scale (1), and the machine number changes the direction of the surveying device (2) at the observation point (b1) and passes the first through the surveying device (2) Read the mark scale of the point. Here, the altitude of the first point is obtained from the difference between the scale read at the ground reference point (a0) and the first point (a1) and the altitude of the ground reference point.

In the third step, the machine number moves to the second viewpoint (b2) behind the first point (a1), and the reference number 1 changes the direction from the original position (the first point) so that the measurement number 1 is surveyed. When looking at the instrument 2, the machine operator reads the scale of the first point a1 with the measuring instrument from the second observation point b2.

In the fourth step, the target number moves to the second point (a2) and sets up the target scale 1, and the machine number reads the scale scale of the second point (a2) at the second observation point (b2). Here, the altitude of the second point is obtained from the difference in scale between the first point (a1) and the second point (a2) read from the second observation point (b2).

In this way, while continuously moving the target scale 1 and the measuring device 2, the direction of the target and the measuring device at each observation point is changed, and the scale is read to obtain the altitude of each point to the target point.

At this time, in order to perform accurate geodetic survey work, the surveying device must be able to maintain a stable horizontal posture, and must not be shaken even when an external shock or vibration is applied.

However, the conventional target is a combination of a plurality of scale bars so that the length can be adjusted in a slide-extending manner. Therefore, it is difficult to install the target accurately vertically.

In addition, in the conventional target, in the process of changing the direction of the target in the third step, the target must be lifted from the ground to change the direction of the target, and then put down again in the original position. There is a problem in that it is often not possible to put the swivel in its original position, and accordingly, a measurement error occurs.

Therefore, it is required to develop a stable installation device for precise measurement of the target for geodetic surveying so that the point of the target is not changed in the process of changing the direction of the target.

The matters described as the background art above are only for improving understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to the prior art already known to those of ordinary skill in the art.

The present invention is to solve the problems of the prior art described above, and since the target can be installed quickly and accurately vertically, it is possible to increase the measurement precision to provide a geodetic surveying device for stable height adjustment of the level surveying target. have.

In addition, since the present invention can change the direction in place without lifting and reinstalling the installed target in changing the direction of the target, it is possible to reliably exclude the measurement error due to the change in the position of the target. Another object of the present invention is to provide a geodetic surveying device for stable height adjustment of a chuck.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art from the description of the present invention. .

The configuration of the present invention for achieving the above object is a pyocheok configured to be able to adjust the length by stretching up and down; A lighting device coupled to cover the lower outer surface of the tabletop and irradiating light; a rotating mechanism coupled to the lower end of the table; a buffer mechanism coupled to the lower end of the rotating mechanism; Removable coupler coupled to the lower end of the buffer mechanism; and a landing zone that is detachably coupled to the removable coupler and maintains the target vertically; It is characterized in that it includes.

In the geodesic surveying apparatus for stable height adjustment of the leveling scale according to an embodiment of the present invention, the target is a lower chuck having a hollow formed therein and marked with a scale on the front; The middle chuck is inserted so as to be slidable inside the lower chuck and has a hollow inside; And the upper chuck is inserted so as to be slidable inside the intermediate chuck and has a hollow inside; Including, a vertical elastic part is accommodated in the hollow of the lower chuck, the middle chuck, and the upper chuck, and the vertical elastic part connects between the inner surface end of the upper chuck and the inner surface end of the lower chuck, and the inner surface end of the upper chuck One end of the vertical wire is coupled, the other end of the vertical wire is drawn out through the end of the lower chuck, and the vertical lead is coupled to the lower end of the lower chuck so that the drawn wire can be wound or unwound, and from the vertical lead out As the vertical wire is unwound, it is preferable that the length of the top chuck is extended in the order of the upper cheokdae-middle cheokdae.

In the geodesic surveying device for stable height adjustment of the level surveying target according to an embodiment of the present invention, the lighting device includes: a lighting case in the form of a square ring coupled to the lower outer surface of the target; a plurality of lighting sockets mounted on the upper surface of the lighting case; and a plurality of solar cell modules detachably mounted on the outer surface of the lighting case; Including, the lighting case is divided into a first lighting case placed on one side of the target and a second lighting case placed on the other side of the target, between one side of the first lighting case and the second lighting case is connected via a lighting pin is mutually rotatable, and a lighting locking device is mounted on the other side of the first lighting case and the second lighting case so that the lighting case can be fixed to the lower part of the target or separated from the target, the first lighting case and the second lighting case A plurality of lighting rails are formed in the longitudinal direction on the outer surface of the solar cell module is formed in a plate shape to be inserted between the plurality of lighting rails, one side of the solar cell module is formed of a solar panel and the other side is formed as a lighting contact surface in contact with the outer surfaces of the first lighting case and the second lighting case, and a plurality of magnetic contact portions spaced apart from each other are formed to protrude in the longitudinal direction on the lighting contact surface, so that the outer surfaces of the first lighting case and the second lighting case are formed. It is preferable that the arc-shaped lighting spacing part is recessed in the longitudinal direction between the plurality of magnet contact parts coupled to the side and spaced apart from each other.

In the geodesic surveying apparatus for stable height adjustment of the leveling scale according to an embodiment of the present invention, the rotating mechanism includes: a horizontal rotation unit coupled to the lower end of the target to enable the target to rotate; and a rotation control unit mounted on a lower end of the horizontal rotation unit; Including, wherein the horizontal rotation unit is coupled to the lower end of the table chuck, the upper end and the rear end of the rotating case is formed in a hollow cylindrical interior; a rotating rod accommodated in the rotating case, the upper end being coupled to the lower end of the table chuck, and the lower end passing through the lower end of the rotating case and being accommodated in the rotating control unit; a rotation extension plate protruding from the side of the rotation rod; a rotation stopper formed on the upper end of the rotation case and in contact with the upper surface of the rotation extension plate; and a plurality of rotating balls disposed between the lower surface of the rotating extension plate and the inner lower surface of the rotating case; Including, wherein the rotation control unit is coupled to the lower end of the rotating case, the control case in which the lower end of the rotating rod is accommodated; a control rod accommodated in the control case and movable in a direction perpendicular to the rotation rod; a stop portion coupled to one end of the control rod and capable of being inserted into any one of a plurality of stop grooves formed under the rotating rod; a control spring coupled between the stopper and the inner surface of the rotating case; a prevention portion coupled to the other end of the control rod and capable of being inserted into the prevention groove formed on the side of the control case; a control moving unit coupled to one side of the prevention unit and having a triangular cross section; a control moving case coupled to the side of the control case and inserted so that the control moving part can move left and right; and a control handle coupled to the upper part of the control moving case so as to be movable up and down, and the lower end of which is in contact with the upper surface of the control moving part. It is preferable to include

In the geodesic surveying device for stable height adjustment of the leveling scale according to an embodiment of the present invention, the detachable coupler includes: a coupling piece coupled to the lower end of the buffer mechanism; and a coupling ring coupled to the lower surface of the coupling piece and having a coupling hole having a circular cross-section in the center thereof; It is preferable to include

In the geodesic surveying apparatus for stable height adjustment of the leveling scale according to the embodiment of the present invention, the landing platform extends radially at an equal angle interval from the outer peripheral surface of the central support, and the landing rod elevating guide hole is formed vertically at the distal end. a landing base having a plurality of support arms that become; a plurality of landing rods respectively inserted and guided in the landing rod lifting guide hole; a driving motor respectively mounted on the upper surface of the support arm; a reducer mounted on the upper surface of the distal end of the support arm; a landing rod guide that is fixedly installed on the upper surface of the reducer and guides the insertion of the landing rod; a battery holder mounted on a lower surface of the landing base to receive a battery for supplying power to the driving motor; a power switch mounted on the landing base to turn on/off the power of the battery; A sensor ball guide piece attached to the lower surface of the support arm and having a sensor ball guide groove formed on the upper surface, a sensor ball inserted into the sensor ball guide groove, and a sensor attached to the lower surface of the outer end of the sensor ball guide piece to detect the position of the sensor ball provided detection means; And it is coupled to the center of the upper surface of the central support and is inserted into the coupling hole of the coupling hole, the cross section is provided with a pyocheok coupling rod having a circular pyocheok mount; It includes, wherein the reducer comprises: a reducer housing mounted on the upper surface of the distal end of the support arm and comprising a housing body and a housing cover; an input gear that is rotatably installed inside the reducer housing and fixedly coupled to the lower end of the motor shaft of the driving motor; an output gear coaxial with the landing rod elevating guide hole and having a screw hole screwed with the male screw portion of the landing rod; a first intermediate gear engaged with the input gear; and a second intermediate gear fixed coaxially with the first intermediate gear and engaged with the output gear; It is preferable to include

The buffer mechanism in the geodesic surveying device for stable height adjustment of the leveling scale according to an embodiment of the present invention, the buffer rod coupled to the lower end of the rotating part; a buffer case formed in a cylindrical shape with an empty inside so that the lower end of the buffer rod can be inserted; a buffer stopper disposed inside the buffer case and coupled to the outer surface of the buffer rod; a buffer connection part coupled to the lower portion of the buffer rod and connecting the buffer rod and the inner surface of the buffer case; And a buffer bent portion coupled to the outer surface of the buffer stopper and connecting the inner surface of the buffer stopper and the buffer case; Including, wherein the buffer stopper and the buffer connection part is made of a rubber material, the buffer stopper is formed in a circular ring shape surrounding the lower portion of the buffer rod, and the buffer connection part moves up and down between the lower end of the buffer rod and the inner lower surface of the buffer case. It extends to the side of the buffer upper and lower part and the buffer upper and lower part connected to and includes a buffer left and right part connecting left and right between the inner side surfaces of the wancheom case, and the buffer curved part is a first curved part in the form of a figure coupled to the outer surface of the buffer stopper ; a second curved portion obliquely extending from a lower end of the first curved portion; a third curved part in the shape of a figure extending from the upper end of the second curved part to the lower part; a fourth curved portion obliquely extending from a lower end of the third curved portion; and a fifth curved portion extending downward from the upper end of the fourth curved portion and coupled to the inner surface of the buffer case; It is preferable to include

The present invention having the above configuration has the effect of improving the measurement precision because it is possible to install the target vertically just by combining the target to the landing zone in a state in which the landing zone is landed on the ground.

In addition, the present invention does not lift and re-land the landing platform in changing the direction of the target, or separate the target from the landing zone and then combine again, but connect the target to the landing zone and set the direction of the target as it is in a standing state Since it can be converted, there is an advantage in that the measurement error due to the change of the position of the target can be reliably excluded.

1 is a view for explaining a method of measuring a level using a conventional standard and measuring instruments.
Figure 2 is a perspective view showing the state of the prior art.
Figure 3 is an exploded assembly view showing the overall appearance of the geodetic surveying device for stable height adjustment of the leveling scale according to an embodiment of the present invention.
Figure 4 is a partial cross-sectional view showing a front view of a geodetic surveying device for stable height adjustment of the leveling scale according to an embodiment of the present invention.
Figure 5 is a cross-sectional view showing the state of the table according to an embodiment of the present invention.
6 is a view showing a state of a lighting device according to an embodiment of the present invention.
7 is a view showing a cross-sectional view of a lighting device according to an embodiment of the present invention.
8 is a view showing a cross-sectional view of a rotating mechanism according to an embodiment of the present invention.
9 is a view showing a state of a rotating rod according to an embodiment of the present invention.
Figure 10 is a view showing a cross-sectional view of the buffer mechanism according to an embodiment of the present invention.
11 is a view showing the appearance of a removable coupler according to an embodiment of the present invention.
12 is a view showing an exploded state of each part of the landing platform according to an embodiment of the present invention.
13 to 14 are views for explaining a state in which the landing platform according to an embodiment of the present invention is maintained horizontally.

Hereinafter, based on the accompanying drawings, the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts irrelevant to the description are omitted, and the same reference numerals are given to the same or similar elements throughout the specification.

In addition, the terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Figure 3 is an exploded assembly view showing the overall appearance of a geodetic surveying device for stable height adjustment of the leveling scale according to an embodiment of the present invention, Figure 4 is a leveling table according to an embodiment of the present invention It is a partial cross-sectional view showing a front view of a geodetic surveying device for stable height adjustment of the chuck, and FIG. 5 is a cross-sectional view showing the appearance of a reference chuck according to an embodiment of the present invention.

As shown, the geodetic surveying device for stable height adjustment of the level surveying target according to the present invention is a target 300 configured to enable length adjustment by expanding and contracting up and down, so as to wrap the lower outer surface of the target scale 300 The lower end of the lighting device 400 coupled to irradiate light, the rotary mechanism 500 coupled to the lower end of the target chuck 300, the buffer mechanism 600 coupled to the lower end of the rotary mechanism 500, the buffer mechanism 600 The detachable coupler 200 and the detachable coupler 200 coupled to the are detachably coupled and made to include a mounting base 100 that allows the target chuck 300 to be maintained vertically.

The table chuck 300, the lower chuck 310 having a hollow formed therein and marked with a scale on the front, the middle chuck 320 and the intermediate chuck pole 320 and the middle chuck pole inserted so as to be slidable inside the lower chuck 310 It is slidably inserted into the interior of the 320 and includes an upper chuck 330 having a hollow therein.

The lower chuck 310 is formed to be thicker than the middle chuck 320 positioned on the upper side, and the middle chuck 320 is formed to be thicker than the upper chuck 330 positioned on the upper side. In the illustrated embodiment, the table chuck 300 is configured in three stages, but the present invention is not limited thereto, and may be freely configured in two stages or four stages or more in a similar manner.

The lower chuck 310, the middle chuck 320, and the upper chuck 330 are engraved with a scale so that a machine number can read it with a level machine.

The lower chuck 310 is formed in a rectangular parallelepiped shape having a hollow 311 therein. At both upper ends of the lower chuck 310, case ends 312 protrude inwardly and extend. Hemispherical case protrusions 313 are protruded from both sides of the lower inner surface of the lower chuck 310 .

The intermediate chuck 320 is slidably coupled to the inside of the lower chuck 310 and is formed in a rectangular parallelepiped shape having a hollow 311 therein. A first outer lower end 321 protrudes and extends outwardly to be in contact with the case end 312 on both lower ends of the intermediate chuck 320, and a first inner lower end 322 to face the first outer lower end 321. ) protrudes and extends inward. A first vertical end portion 323 protrudes and extends inwardly on both sides of the upper end of the intermediate chuck 320 .

The upper chuck 330 is slidably coupled to the inside of the intermediate chuck 320 and is formed in a rectangular parallelepiped shape with a hollow 311 therein. At both lower ends of the upper chuck 330 , a second vertical end 331 protrudes and extends outwardly so as to be in contact with the first vertical end 323 .

That is, the first outer lower end 321 of the intermediate chuck 320 may be in contact with the case end 312 of the lower chuck 310, and the first vertical end 323 of the intermediate chuck 320 is the upper chuck. The second vertical end 331 of the 330 may be in contact, and the first inner lower end 322 of the intermediate chuck 320 may be in contact with the second vertical end 331 of the upper chuck 330 .

In addition, the first outer lower end 321 of the middle chuck 320 is over the case protrusion 313 when the intermediate chuck 320 is moved to the lower part of the lower chuck 310 and the lower end of the inner surface of the lower chuck 310 and the case protrusion 313 ) is located between Accordingly, the intermediate chuck 320 can move upward only when a force is applied to ride over the case protrusion 313 .

The left and right lengths of the first outer lower end 321 are the same as the left and right lengths of the case end 312 , and the left and right lengths of the first inner lower end 322 and the first vertical end 323 are the second It is formed to have the same length in the left and right direction of the vertical end 331 .

The vertical elastic part 340 is accommodated in the hollow 311 of the lower chuck 310 , the middle chuck 320 and the upper chuck 330 . The vertical elastic part 340 connects between the upper end of the inner surface of the upper chuck 330 and the lower end of the inner surface of the lower chuck 310 .

A vertical wire 350 is coupled to the upper end of the inner surface of the upper chuck 330 . One end of the vertical wire 350 is coupled to the upper end of the inner surface of the upper chuck 330 , and the other end is drawn out through the lower end of the lower chuck 310 .

The vertical wire 350 drawn out through the lower end of the lower chuck 310 is coupled to the vertical lead 360 disposed at the lower end of the lower chuck 310 . On the other hand, the draw-out coupling part 370 is mounted at the lower end of the lower chuck 310 so that the vertical draw-out part 360 can be rotatably coupled.

That is, one end of the vertical wire 350 is coupled to the upper end of the inner surface of the upper chuck 330 , and the other end is coupled to the vertical pull-out unit 360 . When the user winds the vertical wire 350 from the vertical pull-out 360, the upper chuck 330 moves to the lower side, and when the vertical wire 350 is released from the vertical pull-out 360, the upper chuck 330 moves upward. Move.

Looking at the operation process of the target according to the embodiment of the present invention described above is as follows.

First, since the upper chuck 330 is pulled by the vertical wire 350, it overcomes the elastic force of the vertical elastic part 340 and is moved to the lower side, and the middle chuck 320 also has the first inner lower end 322 of the second vertical Since it is in contact with the end 331 and moved downward, the middle chuck 320 and the upper chuck 330 are accommodated in the lower chuck 310 .

When the user unwinds the vertical wire 350 from the vertical pull-out unit 360 , the upper chuck 330 moves upward by the elastic force of the vertical elastic part 340 , and the upper chuck 330 moves from the lower chuck 310 . is withdrawn

At this time, since the first outer lower end 321 of the intermediate chuck 320 is located between the lower end of the inner surface of the lower chuck 310 and the case protrusion 313, first, only the upper chuck 330 is drawn out from the lower chuck 310. and the intermediate chuck 320 maintains a state accommodated inside the lower chuck 310 .

When the upper chuck 330 is further moved upward and the first vertical end 323 of the intermediate chuck 320 and the second vertical end 331 of the upper chuck 330 are in contact, the middle chuck 320 also vertically The elastic force of the elastic part 340 is applied, the first outer lower end 321 of the intermediate chuck 320 rides over the case protrusion 313 , and the intermediate chuck 320 is also drawn out from the lower chuck 310 .

When the intermediate chuck 320 and the upper chuck 330 are withdrawn to some extent, the user stops the vertical pull-out unit 360, and reads the scale of the standard scale 300 to perform a surveying operation.

As described above, in the present invention, as the vertical wire 350 is released from the vertical lead-out unit 360, the length of the top chuck 300 is increased from the lower chuck 310 to the upper chuck 330 and the middle chuck 320 in the order. can be

If, the middle chuck 320 and the upper chuck 330 are withdrawn from the lower chuck 310 at the same time, or are drawn out by the central heating, the user has to check the scale of the top chuck 300 one by one, whereas the present invention provides Since the chuck 330 is withdrawn first, when only the upper chuck 330 is withdrawn, the level can be measured by reading the scale of the upper chuck 330, and after the upper chuck 330 is withdrawn, the intermediate chuck 320 has been withdrawn. When you know the length of the upper chuck 330, you can easily measure the level by reading only the scale of the middle chuck 320.

In addition, in the present invention, since the vertical wire 350 is wound around the vertical lead-out part 360 and fixed when not performing the surveying operation, the intermediate chuck 320 or the upper chuck 330 is arbitrarily drawn out regardless of the user's will. has the effect of preventing it from happening.

6 is a view showing a state of a lighting device according to an embodiment of the present invention, Figure 7 is a view showing a cross-sectional view of the lighting device according to an embodiment of the present invention.

As shown, the lighting device 400 is a rectangular ring-shaped lighting case 410 coupled to the lower outer surface of the target chuck 300, a plurality of lighting sockets mounted on the upper surface of the lighting case 410 ( 420) and a plurality of solar cell modules 430 that are detachably mounted on the outer surface of the lighting case 410.

An illumination source is inserted into the illumination socket 420 . The lighting source may be coupled to the lighting socket 420 by screwing it in, and may be assembled to the lighting case 410 in a state integrally formed with the lighting socket 420 .

The lighting case 410 is again divided into a first lighting case 411 placed on one side of the target chuck 300 and a second lighting case 412 placed on the other side of the target chuck 300, the first lighting case 411 and one side of the second lighting case 412 are connected via a lighting pin 413 to be mutually rotatable.

A lighting locking device 414 is mounted on the other side of the first lighting case 411 and the second lighting case 412 to fix the lighting case 410 to the lower part of the target chuck 300 or separated from the target chuck 300 . make it possible

The present invention allows the user to easily perform a survey even at night by coupling the lighting device 400 to the lower part of the target 300 in this way, and to easily find the survey work even if it is performed in a remote place.

A plurality of lighting rails 415 are formed in the longitudinal direction on the outer surfaces of the first lighting case 411 and the second lighting case 412 . The plurality of lighting rails 415 are arranged in parallel, and the cross section is formed in a 'T' shape so that the solar cell module 430 can be inserted between the plurality of lighting rails 415 .

In the present invention, since a user can arbitrarily control the number of solar cell modules 430 inserted into the outside of the lighting case 410 in this way, it is possible to show an optimized solar energy supply efficiency in consideration of the surrounding conditions.

The solar cell module 430 is formed in a plate shape to be inserted between the plurality of lighting rails 415 , and one side of the solar cell module 430 is formed of a solar panel 431 and the other side is the first It is formed of a lighting contact surface 432 in contact with the outer surface of the lighting case 411 and the second lighting case 412 .

The solar panel 431 supplies current to each component of the lighting device 400 . The solar panel 431 uses a thin film solar cell using a plastic substrate having excellent efficiency, and preferably has a maximum voltage of 11 to 24V and a maximum power of about 80 to 100W.

A plurality of magnetic contact portions 433 spaced apart from each other are formed on the lighting contact surface 432 to protrude in the longitudinal direction, are coupled to the outer surfaces of the first lighting case 411 and the second lighting case 412, and are spaced apart from each other. Between the magnet contact portion 433 of the arc-shaped illumination interval portion 434 is formed recessed in the longitudinal direction. The outer surfaces of the first lighting case 411 and the second lighting case 412 are made of a metal material.

That is, on the lighting contact surface 432 of the solar cell module 430, a magnet contact portion 433 and an illumination interval portion 434 for coupling the solar cell module 430 to the lighting case 410 are alternately formed, and the magnet Since a predetermined space is formed between the contact portions 433, the heat dissipation effect is excellent.

As shown, a heat conductive film 422 is formed between the lighting socket 420 and the upper surface of the lighting case 410 . The thermal conductive film 422 is made of a material having excellent thermal conductivity, and serves to transfer heat generated from the lighting source to the lighting case 410 to dissipate the heat.

The lighting socket 420 may be coupled to the heat conductive film 422 through an adhesive 421 at the bottom, and a lead wire 423 is connected to the side of the lighting socket 420 to be coupled to the heat conductive film 422 . A copper foil pattern 424 may be formed on one side of the upper surface of the heat conductive film 422 to improve heat dissipation performance. A heat dissipation plate may be additionally installed at the lower end of the lighting case 410 to further maximize the heat dissipation effect.

Therefore, the heat generated from the illumination source is radiated using a method that is directly transferred to the lighting case 410 through the lighting socket 420, and a method that is transferred to the lighting case 410 through the lead wire 423, and The remaining heat is radiated to the outside air through the copper foil pattern 424 coupled to the upper surface of the thermal conductive film 422 .

As such, the present invention has the advantage of rapidly dissipating the heat of the lighting socket 420 through two different methods, and maximizing the heat dissipation effect by rapidly dissipating the remaining heat through the copper foil pattern 424 .

8 is a view showing a cross-sectional view of the rotating mechanism according to an embodiment of the present invention, Figure 9 is a view showing the state of the rotating rod according to an embodiment of the present invention.

As shown, the rotation mechanism 500 is coupled to the lower end of the table chuck 300 and a horizontal rotation unit 510 that allows the table chuck to rotate and a rotation control unit 520 mounted on the lower end of the horizontal rotation unit 510 . is made including

The horizontal rotating unit 510 is coupled to the lower end of the table chuck 300 and is accommodated in the rotating case 511, the rotating case 511, which is formed in an empty cylindrical shape with an open top and a rear end, and has an upper end of the table chuck ( 300) coupled to the lower end of the rotating rod 512 through the lower end of the rotating case 511 to be accommodated in the rotating control unit 520, the rotating extension plate 513 that protrudes from the side of the rotating rod 512 , formed on the upper end of the rotation case 511 and between the lower surface of the rotation stopper 511a and the rotation extension plate 513 in contact with the upper surface of the rotation extension plate 513 and the inner lower surface of the rotation case 511 It includes a plurality of rotating balls 514 disposed on.

The rotary rod 512 is capable of horizontal rotation relative to the rotation case 511 and other components, and thus the target chuck 300 coupled to the upper end of the rotation rod 512 is also horizontally rotated.

The rotation rod 512 is formed in a cylindrical shape as a whole, and a rotation extension plate 513 protrudes and extends outwardly in the form of a ring on the side of the rotation rod 512 . The rotation extension plate 513 is in contact with the rotation stopper 511a.

The plurality of rotating balls 514 are accommodated in the rotating case 511, and when the rotating rod 512 rotates horizontally, the frictional force between the rotating case 511 and the rotating rod 512 is reduced to reduce the rotating rod 512. ) to rotate more smoothly.

As such, the present invention does not lift and land again the landing platform 100 in changing the direction of the target chuck 300 or separate the target chuck 300 from the landing platform 100 and then combine again, but the target ( 300) is coupled to the landing platform 100, and since the direction of the target 300 can be switched as it is in the standing state, there is an advantage that the measurement error caused by the change of the position of the target can be reliably excluded.

The rotation control unit 520 is mounted on the lower end of the horizontal rotation unit 510, the control case 521, the control rod 522, the stopper 523, the control spring 524, the prevention unit 525, the control moving unit 526 , including a control transfer case 527 and a control handle 528 .

The control case 521 is formed in a cylindrical shape with an empty interior, and is coupled to the lower end of the rotation case 511 . A hole is formed at the upper end of the control case 521 to communicate with the rotating case 511 , and the lower end of the rotating rod 512 may be accommodated in the control case 521 through this hole.

The control rod 522 is accommodated in the J case, and is movable in a direction perpendicular to the rotation rod 512 (ie, left and right). A stop part 523 is coupled to the right end of the control rod 522 , and the prevention part 525 is coupled to the left end of the control rod 522 .

The stop 523 is formed in a flat plate shape, and is movable left and right according to the left and right movement of the control rod 522 . A plurality of stop grooves 512a are radially formed in the lower portion of the rotary rod 512, and the stop portion 523 may be inserted into any one of these stop grooves 512a.

When the control rod 522 is moved to the left, the stop 523 is inserted and accommodated in the stop groove 512a of the rotary rod 512, and when the control rod 522 is moved to the right, the stop 523 is separated from the stop groove (512a) of the rotating rod (512).

When the stop portion 523 is inserted into the stop groove 512a of the rotation rod 512, the rotation rod 512 is blocked by the stop portion 523 and cannot rotate any more and is fixed in place. When the stop portion 523 is separated from the stop groove 512a of the rotary rod 512, the rotary rod 512 is horizontally rotatable again.

As shown, a plurality of stop projections 512b may protrude from the stop groove 512a of the rotary rod 512 . The plurality of stopping protrusions 512b are made of an elastic material such as rubber, and are arranged at predetermined intervals along the longitudinal direction of the stopping grooves 512a.

In addition, it is preferable that the plurality of stopping protrusions 512b are arranged in a zigzag form so that a predetermined height difference between the facing stopping protrusions 512b can be set. That is, the plurality of stopping protrusions 512b are arranged alternately with each other, like interlocked hands.

The plurality of stop projections 512b is not easily separated from the stop groove 512a when the stop portion 523 is inserted into the stop groove 512a of the rotary rod 512 and is maintained therein. functions that enable it.

The control spring 524 is coupled between the stop 523 and the inner surface of the rotating case 511 . The control spring 524 provides an elastic force to push the control rod 522 and the stopper 523 to the left.

The prevention part 525 may be inserted into the prevention groove 521a formed on the side of the control case 521 . When the control rod 522 is moved to the left, the prevention part 525 is inserted into the prevention groove 521a, and when the control rod 522 is moved to the right, the prevention part 525 is separated from the prevention groove 521a. do.

The outer surface of the prevention part 525 and the inner surface of the prevention groove 521a are formed in a sawtooth shape. When the prevention part 525 is inserted into the prevention groove 521a, the control rod 522 and the stop part 523 cannot rotate the shaft and move up and down, and thus the fixed state of the rotation rod 512 is fixed. You can keep it more robust.

The control moving part 526 is coupled to the left end of the prevention part 525 and has a triangular cross section. The control moving case 527 is coupled to the side of the control case 521 and the control moving unit 526 is inserted so as to be movable left and right. In other words, the control moving unit 526 may be accommodated in the control moving case 527 and move left and right.

The control handle 528 is coupled to the upper portion of the control transfer case 527 . The control handle 528 is mounted to be movable up and down, and the lower end of the control handle 528 is in contact with the upper surface of the control moving part 526 .

When the user holds the control handle 528 and applies a downward force, the lower end of the control handle 528 is in contact with the upper surface of the control moving unit 526 and pushes the control moving unit 526, and accordingly, the control moving unit 526 is shifted to the right.

As the control moving part 526 is moved to the right, the prevention part 525 is separated from the prevention groove 521a, and the control rod 522 overcomes the elastic force of the control spring 524 and is moved to the right.

As the control rod 522 is moved to the right, the stop 523 is also separated from the stop groove 512a, and the rotation rod 512 and the mark 300 coupled thereto are of the stop 523. It can be rotated horizontally freely without restrictions.

When the user ends the horizontal rotation of the target chuck 300 in the desired direction, the user places the control handle 528, the control rod 522 is moved to the left according to the elastic force of the control spring 524.

When the control rod 522 moves to the left, the stop 523 is inserted into the stop groove 512a to limit horizontal rotation of the rotary rod 512 . At this time, the prevention part 525 is inserted into the prevention groove 521a, and the control moving part 526 moves to the left to lift the control handle 528 upward.

10 is a view showing a cross-sectional view of a buffer mechanism according to an embodiment of the present invention.

As shown, the buffer mechanism 600 is made to include a buffer rod 610, a buffer case 620, a buffer stopper 630, a buffer connection part 640 and a buffer bending part 650, and a rotating mechanism ( 500) is mounted at the bottom.

The buffer rod 610 is coupled to the lower end of the rotating mechanism 500, and the buffer fastening part 611 in the form of a disk and the buffering cylinder part 612 in the form of a cylinder extending to the lower center of the buffer fastening part 611. is done

The buffer case 620 is formed in a cylindrical shape with an empty interior, and the lower end of the buffer rod 610 is accommodated. A removable coupler 200 is coupled to the lower end of the buffer case 620 .

The buffer stopper 630 is coupled to the lower outer surface of the buffer cylinder portion 612 of the buffer rod (610). The buffer stopper 630 is formed in a ring shape and is disposed inside the buffer case 620 . When a large vibration or shock is applied from the ground and the buffer rod 610 is greatly shaken, the buffer stopper 630 is in contact with the inner surface of the buffer case 620 to perform large displacement control. A predetermined gap (G) is formed between the outer surface of the buffer stopper 630 and the inner surface of the buffer case 620 .

The buffer connection part 640 is coupled to the lower portion of the buffer rod 610 and connects between the buffer rod 610 and the inner surface of the buffer case 620 . The buffer stopper 630 and the buffer connection part 640 are made of a rubber material.

The buffer connection portion 640 extends to the side of the buffer upper and lower portion 641 and the buffer upper and lower portion 641 connecting the lower end of the buffer rod 610 and the inner lower surface of the buffer case 620 in the up and down direction, the buffer case 620 ) includes a buffer left and right portion 642 that connects left and right between the inner side surfaces. The buffer connection part 640 has a 'ten (十)'-shaped cross-section as a whole.

Between the outer surface of the buffer stopper 630 and the inner surface of the buffer case 620, that is, the buffer bending part 650 is coupled to the gap (G) to connect the buffer stopper 630 and the buffer case 620 with each other. .

Specifically, the buffer bending portion 650 is made including a first curved portion 651, a second curved portion 652, a third curved portion 653, a fourth curved portion 654 and a fifth curved portion 655, and as a whole It has a 'zigzag' cross section.

The first curved part 651 is coupled to the outer surface of the buffer stopper 630 and is formed in a single shape. The second curved portion 652 extends obliquely upward from the lower end of the first curved portion 651 . The third curved portion 653 extends downward from the upper end of the second curved portion 652 and is formed in a single shape. The fourth curved portion 654 extends obliquely upward from the lower end of the third curved portion 653 . The fifth curved part 655 extends downward from the upper end of the fourth curved part 654 , is formed in a single shape, and is coupled to the inner surface of the buffer case 620 .

At this time, the vertical height of the first curved part 651 is formed to be relatively higher than the vertical height of the third curved part 653 , and the vertical height of the third curved part 653 is relatively higher than the vertical height of the fifth curved part 655 . is formed That is, the overall height of the buffer curved portion 650 gradually decreases from the first curved portion 651 toward the fifth curved portion 655 in the direction.

In addition, the thickness of the first bent portion 651 to the fifth bent portion 655 is preferably formed to be the same overall. An angle between the first curved part 651 and the second curved part 652 , an angle between the second curved part 652 and the third curved part 653 , and an angle between the third curved part 653 and the fourth curved part 654 . and the angle between the fourth curved portion 654 and the fifth curved portion 655 is preferably set to be substantially the same overall.

As such, the present invention can obtain the effect of substantially reducing the gap by using the buffer bending part 650 while maintaining the physical gap (G) between the buffer stopper 630 and the buffer case 620 as it is, the buffer While reducing noise due to frequent contact of the stopper 630 , there is an advantageous characteristic for controlling large displacement vibration.

11 is a view showing the appearance of a removable coupler according to an embodiment of the present invention, Figure 12 is a view showing an exploded state of each part of the landing platform according to an embodiment of the present invention.

As shown, the detachable coupler 200 is coupled to the lower surface of the coupling piece 210 and the coupling piece 210 coupled to the lower end of the buffer mechanism 600, the coupling hole 230 having a circular cross-section in the center. It includes the formed coupling ring 220 .

The removable coupler 200 may be coupled to the buffer mechanism 600 by fastening the screw 240 passing through the coupling piece 210 to the lower surface of the buffer mechanism 600 .

The landing platform 100 includes a central support 111 and a plurality of (three in the drawing) support arms 112 and the support arms 112 extending radially at equal angular intervals from the outer circumferential surface of the central support 111 . ), a landing base 110 provided with a landing rod elevating guide hole 113 penetrating up and down at the tip of the ) and a male threaded portion 121 formed on the outer circumferential surface to be vertically inserted and guided into the landing bar elevating guide hole 113, respectively. A plurality of landing rods 120 having a key groove 122 formed in the longitudinal direction on the outer circumferential surface and a landing portion 123 formed at the lower end, and a driving motor 130 mounted on the upper surface of the support arm 112, respectively, and the It is mounted on the upper surface of the distal end of the support arm 112 and is rotatably installed in the reducer housing 141 and the reducer housing 141 including the housing body 142 and the housing cover 143, respectively, and the driving motor 130 ) coaxial with the input gear 144 fixedly coupled to the lower end of the motor shaft 131 and the landing rod elevating guide hole 113 and screwed with the male screw portion 121 of the landing rod 120 . An output gear 147 having a 148, a first intermediate gear 145 meshed with the input gear 144, and the first intermediate gear 145 are fixed coaxially to mesh with the output gear 147 The reduction gear 140 provided with the second intermediate gear 146 and the guide hole 151 which is fixedly installed on the upper surface of the reduction gear 140 and into which the landing rod 120 is inserted and guided, and the inner circumferential surface of the guide hole 151 Mounted on the lower surface of the landing rod guide 150 and the landing base 110 provided with a key 153 fitted between the key groove 152 and the key groove 122 and 152 corresponding to the key groove 122 in the A battery holder 160 for accommodating a battery B for supplying power to the driving motor 130 and a power switch 170 mounted on the landing base 110 to turn on/off the power of the battery B ) and the sensor ball guide piece 181 attached to the lower surface of the support arm 112 and having a sensor ball guide groove 182 formed on the upper surface and the sensor ball guide groove Sensing means 180 provided with a sensor ball 183 inserted in 182 and a sensor 184 attached to the lower surface of the outer end of the sensor ball guide piece 181 to detect the position of the sensor ball 183 . ) and the central support 111, which is coupled to the center of the upper surface and is inserted into the coupling hole 230 of the coupling hole 20, and has a circular cross-section, a standard mounting rod 191, including a standard mount 190. is composed

It is preferable that the central support 111 and the support arm 112 constituting the landing base 110 are integrally formed by a non-magnetic metal material. This is to prevent the sensor 184 constituting the sensing means 180 from interfering with detecting the sensor ball 183 when the landing base 110 is formed of a magnetic metal material.

The driving motor 130 is mounted on the housing cover 143 of the reducer 140 and can be mounted by a conventional motor mounting method using screws or bolts, and detailed illustration thereof is omitted in the drawings. do it with

Landing rod through-holes 142a and 143a through which the landing rod 120 penetrate are formed in the housing body 142 and the housing cover 143 .

The reducer 140 is fixed to the upper surface of the support arm 112 of the landing base 110 and can be fixed by a conventional fixing method using screws or bolts, and detailed illustration thereof will be omitted in the drawings. .

In addition, the housing body 142 and the housing cover 143 may be coupled by a conventional method using a screw, and detailed description thereof will be omitted in the drawings.

The landing rod guide 150 is fixed to the upper surface of the housing cover 143 of the reduction gear housing 141 and can be fixed in a fixing method using a conventional screw, and detailed illustration thereof will be omitted in the drawings. do.

The battery holder 160 includes a battery accommodating part 161 having a + terminal 162 and a - terminal 163 like a conventional battery holder, and a cover plate 164 covering the battery accommodating part 161 . It is configured to include, and can be fixed to the central support 111 by a fixing screw 165 fastened to the lower surface of the central support 111 of the landing base 110 by penetrating the battery storage 161 from the bottom to the top.

The power switch 170 includes a switch body 171, a fixing piece 172 extending from both sides of the switch body 171, and a switch knob 173, the driving motor 130 and a battery holder ( 160) and the sensor 184 of the sensing means 180, which are electrically connected, and can be fixed to the upper surface of the central support 111 or the support arm 112 of the landing base 110, and the power switch 170 ) can be mounted on the landing base 110 by fastening the screw 174 that passes through the fixing piece 172 from top to bottom to the central support 111 or the support arm 112 .

The sensor ball guide piece 181 of the sensing means 180 is preferably formed of a non-magnetic metal material or a synthetic resin material in order not to affect the sensing operation of the sensor 184 .

The sensor ball 183 may be a permanent magnet, and the sensor 184 may be a switch having a terminal made of a magnetic material corresponding to the permanent magnet.

The sensor ball guide piece 181 of the sensing means 180 may be attached to the lower surface of the support arm 112 by a conventional fixing method using a screw.

The reference mount 190 is landed by fastening a screw 193 penetrating the flange portion 192 integrally extended and formed from the bottom of the reference coupling rod 191 to the upper surface of the central support 111 from top to bottom. It may be coupled to the base 110 .

13 to 14 are views for explaining a state in which the landing platform according to an embodiment of the present invention is maintained horizontally.

The reference point is the lower end of the landing rod 120 of the landing platform 100 by separating the removable coupler 200 and the reference mount 190 of the landing platform 100 coupled to the lower end of the reference point 300. a0), the first point (a1), the second point (a2), the third point (a3), etc., are landed on the ground, and the number of machines is level in the state in which the target 300 is coupled to the landing platform 100 and installed. It is used for geodetic surveying by reading the scale of the target 300 using a measuring instrument such as a flag.

When landing the landing platform 100 on the ground, the plurality of landing rods 120 are operated in a state in which the power of the battery B is turned off by operating the switch knob 173 of the power switch 170 to the off position. to land on the ground.

At this time, when the ground is inclined, the landing rod 120 does not achieve a verticality, the landing base 110 does not achieve a horizontal level, and the surface-to-ceiling coupling rod 191 of the reference mount 190 does not achieve a vertical state (FIG. 13). Reference).

In addition, at this time, the sensor ball guide piece 181 constituting the sensing means 180 also forms the same inclination angle as the support arm 112 of the landing base 110 .

Accordingly, the sensor ball 183 inserted into the sensor ball guide groove 182 of the sensor ball guide piece 181 is rolled down to a low position according to the inclination angle of the sensor ball guide piece 181 (see FIG. 13 ). ).

In this state, when the power of the battery B is turned on by operating the switch knob 173 of the power switch 170 to the on position, the sensor 184 corresponding to the sensor ball 183 rolled down to the low position is the sensor. The ball 183 is sensed, and power is supplied to the driving motor 130 corresponding thereto so that the motor shaft 131 rotates, and the input gear 144 fixed to the motor shaft 131 rotates. The first intermediate gear 145 meshed with the input gear 144 and the second intermediate gear 146 fixed coaxially to the first intermediate gear 145 rotate, and the output meshed with the second intermediate gear 146 . The gear 147 rotates, and in this process, deceleration is made by the gear ratio.

In this process, since the male screw part 121 of the landing rod 120 is screwed to the screw hole 148 provided in the output gear 147, the landing is made by the screw action of the screw hole 148 and the male screw part 121. The rod 120 is lowered.

At this time, the landing rod 120 is inserted and guided into the guide hole 151 of the landing rod guide 150, and the keyway 122 provided in the landing rod 120 and the guide hole of the landing rod guide 150 ( Since the key 153 is inserted into the key groove 152 formed on the inner circumferential surface of the 151 , the landing rod 120 descends without rotating.

As the landing rod 120 descends, the outer ends of the support arm 112 and the sensor ball guide piece 181 located on the lower side are lifted up, and as a result, the landing base 110 and the sensor ball guide piece 181 are lifted up. ) is horizontal, and the landing rod 120 and the pyocheok coupling rod 191 are vertical.

When this state is reached, the sensor ball 183 moves to the intermediate position of the sensor ball guide groove 182 , and the sensor 184 becomes in a state where it cannot detect the sensor ball 183 , so power to the driving motor 130 . This is blocked, and as a result, the driving motor 130 is stopped, and the descending of the landing rod 120 is stopped (see FIG. 14 ).

Once the driving motor 130 is stopped, the power switch 170 can be turned off, but if the landing base 110 is inclined or the landing rod 120 is not vertical due to an external shock or vibration, It is preferable to keep the power switch 170 on in order to make one operation possible.

In this state, when the coupling hole 230 of the removable coupler 200 is inserted into the pyocheok coupling rod 191, the pyocheok 300 is automatically vertical. Therefore, since there is no need to do a separate operation for maintaining the target 300 vertically, it is possible to quickly proceed with the geodetic surveying operation.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes can be made without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

100: landing platform 110: landing base 120: landing rod
130: drive motor 140: reducer 150: landing rod guide
160: battery holder 170: power switch 180: sensing means
190: standard mount 200: removable coupling sphere 210: coupling piece
220: coupling ring 230: coupling hole 240: screw
300: standard 310: lower chuck 311: hollow
312: case end 313: case projection 320: middle chuck
321: first outer lower end 322: first inner lower end 323: first vertical end
330: upper chuck 331: second vertical end 340: vertical elastic part
350: vertical wire 360: vertical lead-out 370: pull-out coupling part
400: lighting equipment 410: lighting case 411: first lighting case
412: second lighting case 413: lighting pin 414: lighting locking device
415: lighting rail 420: lighting socket 421: adhesive
422: thermal conductive film 423: lead wire 424: copper foil pattern
430: solar cell module 431: solar panel 432: lighting contact surface
433: magnet contact 434: lighting interval 500: rotating mechanism
510: horizontal rotating unit 511: rotating case 511a: rotating stopping unit
512: rotation rod 512a: stop groove 512b: stop projection
513: rotation extension plate 514: rotation ball 520: rotation control unit
521: control case 521a: prevention groove 522: control rod
523: stop part 524: control spring 525: prevention part
526: control moving unit 527: control moving case 528: control handle
600: buffer mechanism 610: buffer rod 611: buffer fastening part
612: buffer cylinder part 620: buffer case 630: buffer stopper
640: buffer connection part 641: buffer upper and lower parts 642: buffer left and right parts
650: buffer bent portion 651: first bent portion 652: second bent portion
653: third curved part 654: fourth curved part 655: fifth curved part

Claims (1)

The top and bottom is configured to be adjustable in length by stretching; A lighting device coupled to cover the lower outer surface of the tabletop and irradiating light; a rotating mechanism coupled to the lower end of the table; a buffer mechanism coupled to the lower end of the rotating mechanism; Removable coupler coupled to the lower end of the buffer mechanism; and a landing zone that is detachably coupled to the removable coupler and maintains the target vertically; including,
The mark is
a lower chuck with a hollow inside and marked with a scale on the front; The middle chuck is inserted so as to be slidable inside the lower chuck and has a hollow inside; And the upper chuck is inserted so as to be slidable inside the intermediate chuck and has a hollow inside; including,
A vertical elastic part is accommodated in the hollow of the lower chuck, the middle chuck, and the upper chuck, and the vertical elastic part connects between the inner surface end of the upper chuck and the inner surface end of the lower chuck, and one end of the longitudinal wire at the inner surface end of the upper chuck This is coupled, the other end of the vertical wire is withdrawn to the outside through the end of the lower chuck, the bottom of the lower chuck is coupled to the vertical lead-out so that the drawn wire can be wound or unwound,
As the vertical wire is released from the vertical pull-out part, the length of the top cheokdae is extended in the order of the upper cheokdae-middle cheokdae,
The lighting device is
Rectangular ring-shaped lighting case coupled to the lower outer surface of the table; a plurality of lighting sockets mounted on the upper surface of the lighting case; and a plurality of solar cell modules detachably mounted on the outer surface of the lighting case; including,
The lighting case is divided into a first lighting case placed on one side of the target and a second lighting case placed on the other side of the target, and one side of the first lighting case and the second lighting case is connected via a lighting pin as a medium to rotate And, a lighting locking device is mounted on the other side of the first lighting case and the second lighting case to fix the lighting case to the lower part of the target or to be separated from the target, and the outer surfaces of the first lighting case and the second lighting case are A plurality of lighting rails are formed in the longitudinal direction,
The solar cell module is formed in a plate shape so as to be inserted between a plurality of lighting rails, one side of the solar cell module is formed of a solar panel and the other side is in contact with the outer surfaces of the first and second lighting cases. A plurality of magnetic contact portions spaced apart from each other are formed to protrude in the longitudinal direction on the lighting contact surface to be coupled to the outer surfaces of the first and second lighting cases, and a circular arc is formed between the plurality of magnetic contact portions spaced apart from each other. The lighting interval of the shape is recessed in the longitudinal direction,
The rotating mechanism is
a horizontal rotation unit coupled to the lower end of the tabletop so that the tabletop can be rotated; and a rotation control unit mounted on a lower end of the horizontal rotation unit; including,
The horizontal rotation unit,
a rotating case coupled to the lower end of the table and formed in a cylindrical shape with an open upper end and an open rear end; a rotating rod accommodated in the rotating case, the upper end being coupled to the lower end of the table chuck, and the lower end passing through the lower end of the rotating case and being accommodated in the rotating control unit; a rotation extension plate protruding from the side of the rotation rod; a rotation stopper formed on the upper end of the rotation case and in contact with the upper surface of the rotation extension plate; and a plurality of rotating balls disposed between the lower surface of the rotating extension plate and the inner lower surface of the rotating case; including,
The rotation control unit,
a control case coupled to the lower end of the rotating case and accommodating the lower end of the rotating rod; a control rod accommodated in the control case and movable in a direction perpendicular to the rotation rod; a stop portion coupled to one end of the control rod and capable of being inserted into any one of a plurality of stop grooves formed under the rotating rod; a control spring coupled between the stopper and the inner surface of the rotating case; a prevention portion coupled to the other end of the control rod and capable of being inserted into the prevention groove formed on the side of the control case; a control moving unit coupled to one side of the prevention unit and having a triangular cross section; a control moving case coupled to the side of the control case and inserted so that the control moving part can move left and right; and a control handle coupled to the upper part of the control moving case so as to be movable up and down, and the lower end of which is in contact with the upper surface of the control moving part. includes,
The removable coupler,
a coupling piece coupled to the lower end of the buffer mechanism; and a coupling ring coupled to the lower surface of the coupling piece and having a coupling hole having a circular cross-section in the center thereof; including,
The landing zone is
a landing base having a plurality of support arms extending radially from the outer circumferential surface of the central support at equal angular intervals and having a landing bar elevating guide hole vertically penetrating at the distal end; a plurality of landing rods respectively inserted and guided in the landing rod lifting guide hole; a driving motor respectively mounted on the upper surface of the support arm; a reducer mounted on the upper surface of the distal end of the support arm; a landing rod guide that is fixedly installed on the upper surface of the reducer and guides the insertion of the landing rod; a battery holder mounted on a lower surface of the landing base to receive a battery for supplying power to the driving motor; a power switch mounted on the landing base to turn on/off the power of the battery; A sensor ball guide piece attached to the lower surface of the support arm and having a sensor ball guide groove formed on the upper surface, a sensor ball inserted into the sensor ball guide groove, and a sensor attached to the lower surface of the outer end of the sensor ball guide piece to detect the position of the sensor ball. provided detection means; And it is coupled to the center of the upper surface of the central support and is inserted into the coupling hole of the coupling, the cross-section is a pyocheok mount provided with a circular pyocheok coupling rod; including,
The reducer is
a reducer housing mounted on the upper surface of the distal end of the support arm and comprising a housing body and a housing cover; an input gear which is rotatably installed inside the reducer housing and fixedly coupled to the lower end of the motor shaft of the driving motor; an output gear coaxial with the landing rod elevating guide hole and having a screw hole screwed with the male screw portion of the landing rod; a first intermediate gear engaged with the input gear; and a second intermediate gear fixed coaxially with the first intermediate gear and engaged with the output gear; A geodetic surveying device for stable height adjustment of the leveling scale, characterized in that it comprises a.

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