KR101256631B1 - Apparatus for measuring national level control point using equal distance survey in geodetic surveying - Google Patents

Abstract

PURPOSE: A national control point measuring device using equidistant observation in a geodetic survey is provided to easily install a target object by attaching an attaching plate, in which a magnetic body is embedded, to a metal portion of the target object and firmly attaching the target object by increasing the magnetic force of the magnetic body. CONSTITUTION: A national control point measuring device using equidistant observation in a geodetic survey comprises a target object. The target object includes a connection member(100) capable of adjusting an angle, indicating unit(210) indicating the target object by being joined to the connection member, a frame joined to the other end of the indicating unit, and a reflective member composed of a reflective plate(230) where a control point is displayed. The connection member includes a support(110), an attaching plate(120), a lifting device, and a joining member(130).

Description

Apparatus for Measuring National Level Control Point using Equal Distance Survey in Geodetic Surveying

The present invention relates to a national level reference point surveying device using equidistant observation in geodetic surveying, and more particularly, to improve the surveying accuracy of the surveying device to improve the surveying target structure provided by the surveying device. It is possible to perform the surveying work with high accuracy and to provide the magnetic material on the attaching plate of the surveying target so that it can be attached to the metal part of the surveying object. The present invention relates to a national level reference point surveying apparatus using equidistant observation in geodetic surveying, which is more convenient by providing a lifting mechanism on a plate to facilitate detachment of an attachment plate from a metal part of a survey target.

In general, geodesic surveying is a survey that determines the coordinates of a reference point of a country's topographical map, which is a triangulation that determines the coordinates of a triangular point, a level survey that determines the elevation of a level point, and an accompanying astronomical or baseline ( Several observations, such as baseline and tide, are included.

At this time, triangulation has recently used triangulation due to the widespread wave measurement, and it is gravitational survey or satellite geodesic method that determines the relief of the earth's shape and geoid. In addition, self-measurement etc. may be added by giving geomagnetic declination to this.

On the other hand, the leveling (plane survey) for determining the height in three-dimensional coordinates, and observes the elevation or elevation between the various points on the surface.

At this time, the national level reference point survey is the average sea level (geoid), and the result of the level survey is important information that provides data necessary for mapping, design and construction. It serves as a reference point in the fields of installation, drainage characteristics survey, mapping, etc.

National level control point surveys are carried out in the manner of work planning, preemption, installation of survey tables, observation, calculation, and performance management in accordance with the provisions of Article 39 and 40 of Chapter 3 Level Survey No. 2002-177 of the Ministry of Construction and Transportation.

As a related technology, there is a registered patent No. 0564145 (measurement label management system using a survey reference point marker), which is caused by machine adjustment instability error due to vertical tilting, collimation line and bubble tube axis are not parallel due to the use of equidistant observation. The accuracy of the observations is lowered because the error cannot be eliminated and the observation information cannot be stored.

Accordingly, it has been improved to have been registered Patent No. 084251.

The disclosed Patent No. 0848251 is capable of equidistant surveying, an error cancellation function is implemented, and observation information can be stored, thereby making a remarkable technical progress compared to the existing technology.

However, the disclosed Patent No. 0848251 is provided for the purpose of reflecting laser light emitted from the surveying device during a surveying operation, so that a surveying target for guiding accurate surveying does not have a guide portion for indicating a surveying object. The need for improvement has been raised, such as difficult and surveying situations where surveying is impossible.

The present invention has been made because of the limitations of the prior art as described above, and the need for structural improvement to overcome this problem, and more precise surveying by improving the structure of a survey target used in a national level reference point surveying device using equidistant observation. By making this possible, the installation of the surveying target is made very convenient by not causing problems of surveying defects and by providing a magnetic material on the attaching plate of the surveying target so that it can be attached to the metal part of the surveying target. It is equipped with a lifting mechanism on the attachment plate so that the magnetic material can be separated from the metal part of the survey object without applying a large force, so that the national level reference point surveying device using equidistant observation is used in geodetic surveying, which makes the use of the survey target more convenient. The purpose is to provide.

In order to achieve the above object, the present invention provides a laser range finder for accurate distance calculation from a remote location, a collimator lens for focusing a measurement object and a line of sight, and an automatic expression of a bubble tube automatically when a bubble tube enters an allowable radius. Level device, liquid crystal display device to display proper distance to observer, data connection cable for transmitting and receiving data, eyepiece for observation, data storage device for calculating distance data and storing processed data, distance calculation and attribute information In a known state level reference point surveying device using known isometry including a data processing device for processing, a collimator device for obtaining observation values in response to a target, and an objective lens for closer viewing of a distant survey object, the survey device is output. To reflect accurate lasers for accurate positioning The connecting member configured to include, but the target for, the target for the measurement is to adjust the angle; And a guide portion having a pointed end portion pointed to and coupled to the connection member to indicate a measurement object, a frame coupled to the other end portion of the guide portion, and a reflecting plate provided at the front of the frame and displaying a measurement reference point. Consists of a reflecting member made of, the connecting member is coupled by the beam fixing knob, the angle is adjusted, the support consisting of first and second connecting beams each having a ball housing at the end; An attachment plate having a ball joint coupled to the ball housing of the first connection beam so as to allow angle adjustment in all directions and having a magnetic material attached to the measurement object therein; A lifting mechanism fixed to the attachment plate to lift and remove the attachment plate from the survey object; And a ball joint coupled to the ball housing of the second connection beam in all directions so that the angle can be adjusted in all directions, and an upper side of the second side of the ball housing is provided with a coupling hole cut upward to couple the guide portion. It is characterized by a national level reference point surveying device using equidistant observations in geodetic surveying including coupling members with fastening bolts.

In another aspect, the present invention, the lifting mechanism is a hollow hexahedron mechanism case; Four lifts disposed rotatably in the instrument case and formed at a 90 degree interval by successively forming a pressing surface and a return surface formed in the radial direction of the rotation center in a circumferential direction, the pressure surface being formed so that the radial length is gradually longer from the rotation center. A drive cam having a portion and installed to expose a portion of the lifting portion out of the mechanism case; A drive gear fixed to the same axis as the drive cam and rotating together; A transmission gear rotatably installed in the instrument case and engaged with the drive gear; A worm wheel fixed on the same axis as the transmission gear and rotating together; A worm rotatably installed in the instrument case and engaged with the worm wheel; A driven gear fixed on the same axis as the worm and rotating together; A prime mover meshed with the driven gear; An electric motor provided in the instrument case to rotate the prime mover; A battery provided in the instrument case for supplying power to the electric motor; And a switch installed on the mechanism case to operate from the outside, for switching on and off power of a battery supplied to the electric motor to control the driving of the electric motor, wherein the mechanism case is lifted by the driving cam. The pressing surface constituting the portion is fixed to the mounting plate so as to be exposed toward the surveying object, but the pressing surface of the lifting portion can be pushed in a direction to separate the mounting plate attached to the surveying object from the surveying object by the rotation of the drive cam. It is characterized by the national level reference point surveying equipment using equidistant observations in fixed geodetic surveys.

According to the present invention, by attaching a mounting plate with a magnetic material to a metal part of a surveying object, the surveying target can be easily installed, and the survey target can be firmly attached to the surveying object by increasing the magnetic property of the magnetic material. At the same time, there is an effect that the lifting plate can be peeled off effortlessly from the measurement object by the lifting mechanism.

In addition, according to the present invention, since the guide portion of the reflective member can be easily approached to the surveying object by a connecting member bent at various angles, the use of the target for surveying is easy, as well as the reflective plate or the guide portion is slidable, and thus, by various obstacles. The reflection plate can be prevented from being obscured, so that more accurate surveying is possible, which can greatly reduce the measurement error.

1 is a perspective view of a target for surveying according to an embodiment of the present invention.
2 is a perspective view of a connection member according to an embodiment of the present invention.
Figure 3 is a perspective view showing the operation of the connection member according to an embodiment of the present invention.
"A" in Figure 4 is an exploded perspective view of the reflective member according to an embodiment of the present invention, "I" is a coupling cross-sectional view of the reflective member, "D" is a cross-sectional view showing the operation of the reflective member.
5 is a perspective view of a reflecting member according to another embodiment of the present invention, "I" is a cross-sectional view of "A", and "D" is a cross-sectional view showing operation.
"A" and "B" of Figure 6 is a schematic perspective view showing a state of use of the target for surveying in accordance with an embodiment of the present invention.
Figure 7 is a schematic perspective view showing a state of use of the target for surveying in accordance with another embodiment of the present invention.
8 is a perspective view showing a lifting mechanism in the surveying target of the present invention.
Figure 9 is a cross-sectional view showing a lifting mechanism in the surveying target of the present invention.
Figure 10 is a longitudinal sectional view showing a lifting mechanism in the surveying target of the present invention.
11a and 11b is a state diagram of the operation of the lifting mechanism in the surveying target of the present invention.

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

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

The present invention uses the configuration of the Korean Patent Publication No. 2010-0041924 related to the target for measurement as it is, in particular, when using a magnetic material having a very high magnetic material for firm fixing when attaching a mounting plate provided with a magnetic material to the metal part of the measurement target In this case, a lifting mechanism is further included so that the attachment plate can be conveniently detached from the measurement object without effort.

Therefore, the device configuration, features, and operation relations described below will be cited in the contents of the Patent Publication No. 2010-0041924 as it is, and will be described in detail later the configuration associated with the main features of the present invention.

In addition, the present invention is a laser range finder for accurate distance calculation, a collimator lens for focusing the measurement object and the collimator, and the bubble tube automatically expresses the bubble tube disclosed in the Patent No. 0848251. Automatic level device, liquid crystal display device for displaying the proper distance to the observer, data connection cable for transmitting and receiving data, eyepiece for observation, data storage device for calculating distance data, and storing processed data and distance calculation And preliminary configurations include data processing devices for processing attribute information, collimator devices for obtaining observations in response to flickering, and objective lenses for closer viewing of distant survey objects. In other words, this is known in the art is a measurement target coupled to this configuration.

First, as shown in Figure 1, the surveying apparatus according to the present invention includes a measurement target for the back reflection of the laser beam, the measurement target is largely connected to the connection member 100 and the connection member 100 Composed of a reflective member 200 is coupled.

In this case, as shown in FIG. 2, the connection member 100 includes a support 110, an attachment plate 120, and a coupling member 130.

That is, the support 110 is coupled by the beam fixing knob 118, the angle is adjusted, but consists of first and second connection beams 112 and 114 having ball housings 116a and 116b at their ends, respectively. At this time, as shown in the enlarged view of the ball housing 116b it can be seen that the insertion groove 117 of the hemispherical shape in which the ball 132 of the coupling member 130 to be described later can be formed is formed. , The ball 132 of the coupling member 130 to be described later to the insertion groove 117 is a joint coupling.

Meanwhile, since the ball housings 116a and 116b provided in the first and second connection beams 112 and 114 have the same configuration, the ball housing 116b provided in the second connection beam 114 is representatively enlarged. Explanation was made.

Next, the attachment plate 120 is coupled to the ball 122 to allow the angle adjustment in all directions to the ball housing 116a of the first connection beam 112, made of a metal component that can be adsorbed by magnetic force The magnetic body 124 is provided inside the attachment plate 120 so that the attachment and detachment is easy.

In addition, the coupling member 130 is coupled to the ball 132 joint so that the angle can be adjusted in all directions to the ball housing 116b of the second connection beam 114, the upper side of the reflective member 200 A coupling hole 134 cut upward is provided to couple the guide portion 210, and at the same time, a fastening bolt 136 is provided to fix the combined guide portion 210 by compressing the coupling hole 134. , The connection member 100 configured as described above is operated as shown in FIG.

That is, referring to FIG. 3, first, the second connection beam 114 of the support 110 is rotated backwardly with respect to the beam fixing knob 118, unlike the FIG. 2. That is, when the beam fixing knob 118 is rotated to one side to relax the binding force on the first and second connection beams 112 and 114, the first and second connection beams 112 and 114 can be freely adjusted. After the angle adjustment is completed, the beam fixing knob 118 is rotated in the opposite direction again to bind and fixed, so the angle can be easily adjusted.

In addition, the ball housing 116b provided on the upper side of the attachment plate 120 and the second connection beam 114 jointly coupled to the ball housing 116a provided on the lower side of the first connection beam 112. It can be seen that the coupling member 130 coupled to the ball 132 joint is adjusted at an angle different from that of FIG. 2.

At this time, the mounting plate 120 and the coupling member 130 coupled to the ball housings 116a and 116b of the first and second connection beams 112 and 114, respectively, are jointed to the balls 122 and 132, so that the support 110 Alternatively, the angle can be adjusted in all directions (front / rear / left / right).

In addition, the coupling hole 134 of the coupling member 130 is coupled to the guide portion 210 of the reflective member 200 to be described later, this coupling operation is also simple. That is, by turning the fastening bolt 136 provided on the upper side of the coupling hole 134 to one side to relax the pressing force on the coupling hole 134, and then insert the guide portion 210 and then turn the fastening bolt 136 reversely When the coupling hole 134 is compressed, the coupling is completed.

As such, the connecting member 100 may be attached to the support plate 110 formed of the first and second connection beams 112 and 114 as well as the ball plates 122 and 132 jointly coupled to the first and second connection beams 112 and 114. 120 and the coupling member 130 can adjust the angle, respectively, so that the user can adjust the angle in the desired direction.

Of course, although not shown in place of the support 110, using a connecting rod formed of a flexible material, the upper and lower coupling members 130 and the mounting plate 120 may be implemented to be flexibly angled, respectively. Is too obvious.

Next, the working relationship is explained.

As shown in the "a" and "b" of Figure 4, the reflective member 200, the end of the one end is formed pointed to be coupled to the coupling member 130 of the connection member 100 to indicate the measurement target A reflector 230 having a guide portion 210, a frame 220 coupled to the other end of the guide portion 210, and a measurement reference point 231 displayed on the front surface of the frame 220. It is composed of In this case, the reference point 231 displayed on the front surface of the reflector 230 is preferably formed at least three points so that the surveyor can select according to the position.

On the other hand, the reflector 230 is sliding to avoid obstacles than fixedly attached to the frame 220, that is, the upper and lower rail jaw (222a, 222b) is formed on the frame 220, the reflector 230 It is preferable to form a symmetrical pair of rail grooves 232 inserted into the rail ledges 222a and 222b to be coupled to each other so as to be slidable. In addition, the reflective plate 230 is provided with a first ball 224 elastically supported on the elastic member 226 on the front surface of the frame 220 so that the reflective plate 230 can be slid step by step, the reflective plate 230 It is preferable to intermittently form a plurality of insertion grooves 234 into which the first ball 224 is inserted.

In addition, the rear surface of the frame 220 is further preferably provided with a first fixing bolt 228 coupled to protrude to the front to restrain the reflecting plate 230 to prevent from sliding without permission.

In addition, the rear surface of the frame 220 is provided with an auxiliary coupling table 240 extending in the same direction as the guide portion 210. That is, the auxiliary coupling table 240 is coupled to the coupling member 130 of the connection member 100 instead of the guide portion 210, when the guide portion 210 to be closer to the measurement object Or it is implemented to be used in combination instead of the guide unit 210 according to the needs of the user.

The reflective plate 230 of the reflective member 200 configured as described above is slidably operated as "C". That is, the first fixing bolt 228 coupled to the front surface of the frame 220 to restrain the reflecting plate 230 is first released to release the restraint, and the reflecting plate 230 is slid to the left in the drawing. At this time, the insertion groove 234 formed on the rear surface of the reflecting plate 230 is inserted into the first ball 224 provided on the front of the frame 220 will be slid step by step. As a result, since the reflection plate 230 slides left and right through the frame 220, an obstacle can be avoided.

On the other hand, in order to prevent the reflector 230 is covered by an obstacle, there is another method other than the above-described configuration in which the reflector is sliding. That is, "a" in Figure 5 is a perspective view of a reflecting member according to another embodiment of the present invention, "b" is a cross-sectional view of "a", "d" is a cross-sectional view showing the operation.

First, referring to "a" and "b" of FIG. 5, the reflective member 200 ′ of another embodiment is also largely composed of the guide portion 210, the frame 220, and the reflective plate 230, and thus the reflective member described above. Configuration 200 or the guide portion 210 is coupled to the slide hole 229a formed at one end of the frame 220 is configured to be slidable, the frame to prevent the sliding of the guide portion 210 The difference is that the second fixing bolt 229d is provided at one side of the 220 to restrain the guide part 210.

Meanwhile, a second ball 229b elastically supported by the elastic member 229c is provided inside the slide hole 229a so that the guide part 210 can be slid step by step, and the guide part 210 is provided. In the outer periphery of the plurality of ring grooves 212 is inserted into the second ball (229b) is preferably formed intermittently.

The reflective member 200 'of another embodiment configured as described above is operated as "da". That is, by releasing the restraint on the guide portion 210 by rotating the second fixing bolt 229d fastened to one side of the frame 220, the guide portion 210 is slid left and right. Since the annular groove 212 intermittently formed at the outer circumference of the 210 slides while being inserted into the second ball 229b in the sliding hole, the sliding distance can be easily grasped as well as the sliding distance.

As a result, when the guide unit 210 is slid as described above, a change in the length of the entire reflective member 200 'is caused, so that when the reflective plate 230 is obscured by an obstacle, the obstruction is prevented by adjusting the length. will be.

Now, look at the state of use for the survey target of the present invention configured as described above.

"A" and "B" of Figure 6 is a schematic perspective view showing a state in which a surveying target according to an embodiment of the present invention in use, Figure 7 is a use of a surveying target according to another embodiment of the present invention It is a schematic perspective view which shows the state.

First, referring to “a” of FIG. 6, the survey target of the present invention is used to measure a height or a distance from a place where a surveyor is located to a surveying object 300, and is located below the connection member 100. The target for surveying is installed on the metal plate provided near the surveying object 300 through the attached mounting plate 120. The first and second connection beams 112 and 114 of the connection member 100 or the balls 122 and 132 jointly coupled to the first and second connection beams 112 and 114 are bent or rotated to form the reflection member 200. The guide unit 210 to indicate the measurement target 300 to complete the installation. Then, the surveyor emits the laser 320 from the surveying device 310 but emits the laser 320 to arrive at the reference point 231 of the reflecting plate 230 to survey the exact height or distance.

If it is assumed that the reflector 230 is covered by the obstacle 330 shown by the broken line during the measurement, the sliding plate 230 may be slid to prevent the cover 330 from being obscured by the obstacle 330. Surveying is possible. That is, as described above, after the first fixing bolt 228 restraining the reflecting plate 230 is released to release the restraint on the reflecting plate 230, the reflecting plate 230 is slid so as not to be covered by the obstacle 330. The first fixing bolt 228 is rotated again to constrain the reflecting plate 230.

In addition, although not shown here, it is too obvious that the reflector 230 may be adjusted to avoid the obstacle 330 by sliding the guide portion 210.

And, referring to Figure 7, it can be seen that the auxiliary coupler 240 is coupled to the coupling member 130 of the connection member 100 instead of the guide portion 210. This is to be selected by the surveyor when necessary in the field, it is provided so as to avoid when the guide portion 210 closer to the survey object or when the guide portion 210 hit an obstacle.

Therefore, according to the measurement target of the present invention, if the attachment plate 120 with the magnetic material 124 is embedded adjacent to the measurement target 300, the installation is completed, the guide portion 210 of the reflective member 200 Since the connection member 100 is bent at a variety of angles can be easily approached to the measurement object 300 is easy to use, as well as the reflector plate 120 or the guide portion 210 is operated by sliding the reflector plate by various obstacles ( Since 230) can be prevented from being covered up, more accurate surveying is possible, so that the measurement error can be greatly reduced.

In addition, the present invention is fixed to the mounting plate 120 of the connecting member 100, as shown in Figures 1 and 8 to lift the attachment plate 120 to lift off the survey object 300 The lifting mechanism 140 further includes.

The lifting mechanism 140 is provided with the hollow hexahedral mechanism case 141, and is installed by fixing the fixing plate 141a provided on one side of the mechanism case 141 to the attachment plate 120 with a fixing screw.

Inside the mechanism case 141, the drive cam 143 is rotatably installed about an axis, and the drive cam 143 has four lifting portions 142 at 90-degree intervals in the circumferential direction around the center of rotation. The lifting portion 142 is formed by successively forming the pressing surface 142a and the return surface 142b formed in the radial direction of the rotation center in a circumferential direction so that the radial length is gradually increased from the rotation center. A portion of the 142 is installed to be exposed out of the instrument case 141.

In addition, the drive gear 144 is fixed on the same axis of the drive cam 143 to rotate together, the drive gear 144 and the transmission gear 145 rotatably installed about the axis in the mechanism case 141 and It is engaged, and the worm wheel 146 is fixed on the same axis of the transmission gear 145 to rotate together.

In addition, the worm wheel 146 is engaged with the worm 147 rotatably installed about the axis in the mechanism case 141, and the driven gear 148 is fixed on the same axis of the worm 147 to rotate together. The driven gear 148 is meshed with the driven gear 148.

On the other hand, the mechanism case 141 is provided with an electric motor 151 and a battery 152, the motive gear 149 is fixed to the motor shaft of the electric motor 151 to drive the electric motor 151. The electric motor 151 is driven by receiving power from the battery 152.

In addition, the switch case 153 is provided on the mechanism case 141 so that the switch 153 can be operated from the outside, and the switch 153 turns the power of the battery 152 supplied to the electric motor 151 on and off. It is to control the driving of the 151, for this purpose the electric motor 151, the battery 152 and the switch 153 is connected through a wire (not shown).

11A and 11B, the lifting mechanism 140 has a pressing surface 142a constituting the lifting portion 142 of the drive cam 143 installed in the mechanism case 141. It is fixed to the mounting plate 120 so as to be exposed toward the 300, the mounting plate (142a) of the pressing surface 142a of the lifting unit 142 by the rotation of the drive cam 143 is attached to the measurement object (300) It is fixedly installed so as to push 120 in a direction away from the measurement object (300).

Referring to the operation of the lifting mechanism 140 configured as described above are as follows. Installing the target for surveying on the surveying object 300 is performed by attaching the attachment plate 120 which has the magnetic body 124 to the metal part of the surveying object 300. FIG.

At this time, when the magnetic force of the magnetic body 124 is weak, there is a fear that the target for surveying flows in a state attached to the surveying object (300). In particular, when the surface of the measurement target 300 is not uniform or a lot of foreign matter, it is impossible to maintain a firm adhesion.

Therefore, it is preferable to firmly attach the measurement target to the measurement target 300 without shaking by using the magnetic material 124 having a strong magnetic force, and at this time, the attachment plate attached by the strong magnetic force using the lifting mechanism 140. 120 can be easily removed from the measurement object 300 without difficulty.

That is, as shown in FIG. 9, when the switch 153 of the lifting mechanism 140 is “ON”, the power of the battery 152 is supplied to the electric motor 151 to supply the electric motor 151. Is driven, the rotational force of the electric motor 151 is transmitted to the worm 147 by the motive gear 149 and the driven gear 148, the rotation speed is decelerated by the worm 147 and the worm wheel 146 Through the transmission gear 145 and the drive gear 144, the drive cam 143 is rotated in the direction of the arrow. In addition, when the switch 153 is "OFF" operation, the power is cut off, the driving of the electric motor 151 is stopped, the rotation of the drive cam 143 is also stopped.

Therefore, a portion having a shorter radial length from the center of rotation of the pressing surface 142a of the lifting portion 142 formed on the drive cam 143 through the operation of the switch 153 may be positioned to be exposed out of the instrument case 141. In this state, when the attachment plate 120 is attached to the measurement object 300 by using the magnetic material 124, the pressing surface 142a of the lifting part 142 is the measurement object 300 as shown in FIG. 11A. It is located close to the surface of the.

In this state, when the use of the surveying target is finished and the attachment plate 120 is to be detached from the surveying object 300, the drive cam 143 is rotated by "on" the switch 153. As shown in FIG. 1, the longest portion of the pressing surface 142a of the lifting unit 142 has the longest radial length from the center of rotation, closely contacting the surface of the surveying object 300, and thus, one side of the attachment plate 120 is disposed by the radial length difference. When it is possible to lift away from the measurement object 300, and to stop the rotation of the drive cam 143 by operating the switch 153 in the state that one side of the mounting plate 120 is lifted, the mounting plate ( 120 may be lifted.

Therefore, since one side of the attachment plate 120 is lifted off from the surveying object 300, the target for surveying can be detached from the survey object 300 easily and effortlessly.

In addition, since four lifting portions 142 of the driving cam 143 are formed at intervals of 90 degrees in the circumferential direction, the driving cam 143 may be rotated by 90 degrees to operate one time, thereby operating the electric motor 151. By shortening the driving time, it is possible to save power of the battery 152.

100: connecting member 110: support
120: mounting plate 124: magnetic material
130: coupling member 136: fastening bolt
140: lifting mechanism 141: instrument case
142: lifting unit 143: drive cam
146: worm wheel 147: worm
151: electric motor 152: battery
153: switch 200: reflective member
210: guide portion 230: reflector
300: survey object

Claims (1)

Laser range finder for accurate distance calculation from a remote location, a collimator lens for focusing survey target and collimation line, an automatic level device that automatically expresses a bubble tube when the bubble tube is within the allowable radius, and a liquid crystal that displays the proper distance to the observer Display device, data connection cable for transmitting and receiving data, eyepiece for observation, data storage device for calculating distance data and storing processed data, data processing device for distance calculation and attribute information processing, In a national level reference point surveying apparatus using known equidistant observations including a collimator for obtaining observation values and an objective lens for closer viewing of a distant survey object,
The surveying device includes a target for surveying to reflect the emitted laser to enable accurate position measurement,
The measurement target, the connection member configured to adjust the angle; And a guide portion having a pointed end portion pointed to and coupled to the connection member to indicate a measurement object, a frame coupled to the other end portion of the guide portion, and a reflecting plate provided at the front of the frame and displaying a measurement reference point. Consisting of a reflective member,
The connecting member may be coupled to each other by a beam fixing knob, the support being made of first and second connecting beams each having an angled ball end and a ball housing at an end thereof; An attachment plate having a ball joint coupled to the ball housing of the first connection beam so as to allow angle adjustment in all directions and having a magnetic material attached to the measurement object therein; A lifting mechanism fixed to the attachment plate to lift and remove the attachment plate from the survey object; And a ball joint coupled to the ball housing of the second connection beam in all directions so that the angle can be adjusted in all directions, and an upper side of the second side of the ball housing is provided with a coupling hole cut upward to couple the guide portion. It includes a coupling member having a fastening bolt,
The lifting mechanism includes a hollow casing mechanism case; Four lifts disposed rotatably in the instrument case and formed at a 90 degree interval by successively forming a pressing surface and a return surface formed in the radial direction of the rotation center in a circumferential direction, the pressure surface being formed so that the radial length is gradually longer from the rotation center. A drive cam having a portion and installed to expose a portion of the lifting portion out of the mechanism case; A drive gear fixed to the same axis as the drive cam and rotating together; A transmission gear rotatably installed in the instrument case and engaged with the drive gear; A worm wheel fixed on the same axis as the transmission gear and rotating together; A worm rotatably installed in the instrument case and engaged with the worm wheel; A driven gear fixed on the same axis as the worm and rotating together; A prime mover meshed with the driven gear; An electric motor provided in the instrument case to rotate the prime mover; A battery provided in the instrument case for supplying power to the electric motor; A switch installed on the mechanism case to be operated from the outside to switch on / off power of a battery supplied to the electric motor to control the driving of the electric motor; Lt; / RTI >
The mechanism case is fixed to the mounting plate so that the pressing surface constituting the lifting portion of the drive cam is exposed toward the measurement target, but the mounting plate with the pressing surface of the lifting portion attached to the measurement target by the rotation of the driving cam. A national level reference point surveying device using equidistant observations in geodetic surveying, characterized in that the fixed installation so as to push in a direction away from the survey object.

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