KR102072404B1 - Fixing system for staff - Google Patents

Abstract

The present invention relates to a staff used for a geodetic surveying work. More specifically, the present invention relates to a multi fixation system of a staff for geodetic surveying, wherein the staff can change direction while maintaining an original position and can be installed in consideration of various ground conditions. The multi fixation system comprises: a bogie installed so that a horizontal rotation plate can be rotated horizontally; a landing unit installed to be lifted in the center of the horizontal rotation plate and fastened with the staff at an upper part; and a lift driving unit installed on one side of the horizontal rotation plate and lift-driving the landing unit.

Description

Multi-fixing system for topography for geodetic surveying {FIXING SYSTEM FOR STAFF}

The present invention relates to a surface for use in geodetic surveying, more specifically, the number of surface can be easily moved to each point without the number of the surface, and according to the situation of the surface for geodetic surveying that can be easily fixed to the surface Relates to a multi-fixation system.

In general, geodetic surveying should be done for various civil and architectural designs. Geodetic surveying refers to all activities that measure horizontal distance, elevation, and direction, determine the position of each measuring point, display it in figures or figures, and stake out in the field.

Among these geodetic surveys, level surveying is a survey of the height difference between two points using surveying devices such as top level, leveler, total station, etc. The accuracy is 5mm * S / 2 for level 2 surveying (where, S is a one-way distance, and the unit is km), so detailed surveying is required.

1 is a view for explaining a method for surveying the level using a conventional topographic and surveying equipment.

In the first step, the surface water sets the surface 1 at the ground reference point a0 where the altitude is known, and the number of machines is adjusted to the level at the first observation point b1 separated by a certain distance. Read the scale of the scale (1) with the instrument (2).

In the second step, the surface water moves to the first point a1 to establish the surface 1, and the number of machines reverses the direction of the survey instrument 2 at the observation point b1, and then through the survey instrument 2 Read the scale scale of the point. Here, the altitude of the first point is obtained from the difference between the scales read from 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 observation point b2 behind the first point a1, the number of turns of the scale 1 in place (the first point), and the scale 1 is surveyed. The instrument 2 reads the scale reading of the first point a1 from the second observation point b2 to the survey instrument.

In the fourth step, the surface water moves to the second point a2 to establish the surface 1, and the mechanical number reads the surface 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 at the second observation point b2.

In this way, while the top and bottom of the survey instrument 1 and 2 continue to be moved, the scale of each point and the direction of the survey instrument at each observation point are changed to read the scale to obtain the altitude of each point to the target point.

However, in the conventional method, the surface has to be lifted from the ground to change the direction of the surface and then lowered back to its original position. If it can not put down frequently occurs, there is a problem that a measurement error occurs accordingly.

In addition, in the case of geodetic surveying a large area, the surface water has to move to a number of points carrying heavy weights to establish the exact point every time, so that the working fatigue of the surface water becomes severe, and the work is delayed.

Furthermore, since the conventional top surface does not consider the state of the ground, but merely considers to stand perpendicular to the ground, the development of the top surface fixation system considering the state of the ground is required.

The matters described as the background art are only for the purpose of improving the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related art already known to those skilled in the art.

The present invention is to solve the above-mentioned problems of the prior art, it is possible to horizontally rotate the surface using a horizontal rotating plate to provide a multi-fixing system for geodetic surveying that can be changed direction while maintaining the original position. The purpose is.

In addition, the present invention provides a multi-fixing system for geodetic surveying for geodetic surveying that can reduce the work fatigue because the number of the surface can be moved to each point without effort, and can be installed in consideration of the condition of various grounds. There is another purpose.

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

The configuration of the present invention for achieving the above object, the trolley is installed so that the horizontal rotating plate horizontal rotation; Landing unit is installed so as to be elevated in the center of the horizontal rotating plate coupled to the top; And an elevating driving unit installed at one side of the horizontal rotating plate and elevating and driving the landing portion. Characterized in that it comprises a.

In the multi-fixing system of geodetic surveying surface according to an embodiment of the present invention, the bogie, the frame of the rectangular form; A handle coupled to the rear face of the frame; Fastening holes formed in the four corners of the lower surface of the frame; A plurality of wheel parts coupled to each of the fastening holes to be detachable; A buffer housing unit coupled to the front surface of the frame and configured to accommodate a plurality of buffer units therein; And a height storing unit coupled to both sides of the frame and having a plurality of height adjusting units stored therein. It includes, it is preferable that any one of the height adjustment portion separated from the wheel portion, the buffer portion separated from the buffer storage portion or the height storage portion is preferably coupled to the fastening hole.

In the multi-fixing system of the geodetic surveying surface according to an embodiment of the present invention, the wheel portion, the wheel bracket disposed in the lower portion of the frame; A wheel fastening screw which protrudes on an upper surface of the wheel bracket and can be fastened to be detachable to a fastening hole by forming a thread on an outer circumferential surface thereof; Rotating wheel coupled to the lower surface of the wheel bracket; It is preferable to include.

In the multi-fixing system for geodetic surveying according to an embodiment of the present invention, the buffer unit is coupled to the lower portion of the frame and the buffer body portion of the rectangular parallelepiped form a buffer through-hole; A buffer cover portion coupled to cover the lower surface of the buffer body portion and having a buffer head hole formed therein; And a buffer bolt that is fastened to the fastening hole through the buffer head hole and the buffer through hole and connects the buffer cover part, the buffer body part, and the frame to one; Includes, the buffer fastening bolt, the screw thread formed on the outer circumferential surface having the same diameter as the fastening hole formed with a screw thread on the inner side; A bolt through portion having the same diameter as the buffer through hole and having no thread formed on its outer circumferential surface; And a bolt head portion having the same diameter as that of the buffer head hole and having no thread formed on the outer circumferential surface thereof. It is preferable to include.

In the multi-fixing system of geodetic surveying surface according to an embodiment of the present invention, the height adjustment unit, the height bracket is disposed in the lower portion of the frame is empty; A height fastening screw protruding from the upper surface of the height bracket, the thread being formed on the outer circumferential surface thereof, and fastening to be detachable from the fastening hole; An upper leg whose upper end is rotatably inserted into the height bracket, and the height adjusting hole is formed through the longitudinal direction thereof; A lower leg inserted into a lower portion of the upper leg and movable up and down, and having a plurality of height determining grooves formed at predetermined intervals along its length direction; And a height fixing part coupled to the lower side of the upper leg and capable of fixing the lower leg whose height is adjusted; It is preferable to include.

In the multi-fixing system of the geodetic surveying surface according to an embodiment of the present invention, the height bracket, a bolt hole is formed so that the leg bolt can be penetrated through the center of the side, one side of the bolt hole based on the cut portion is formed It is preferable to provide a space for the legs to rotate, and to prevent the upper leg from rotating by forming a blocked prevention portion on the other side of the bolt hole.

In the multi-fixing system of geodetic surveying surface according to an embodiment of the present invention, the height fixing portion, the rotating portion mounted to be rotatable to the height extension portion protruding to the lower side of the upper leg; An elastic extension part extending outwardly of the rotation part and having a plurality of cutout parts having elastic restoring force; And 'C' shaped engaging portion is coupled to the bottom surface of the upper leg and disposed to wrap the outer periphery of the height adjustment hole; It includes, the engaging portion, the contact end portion is formed at one end of the engaging portion is in contact with the end of the elastic extension portion is disposed in a position not exceeding the region where the plurality of height determining groove is disposed; And a prevention end portion formed at the other end of the locking portion and disposed in contact with the side surface of the elastic extension portion and disposed at a position beyond the area where the height determining groove is disposed. It includes, The elastic extension portion is rotated together in accordance with the rotation of the rotating portion, the end is retracted while contacting the contact end, stretched over the contact end is inserted into the height-determining groove, blocked by the prevention end no longer rotated It is desirable not to.

In the multi-fixing system of the geodetic surveying surface according to an embodiment of the present invention, the landing portion, the landing body is provided with a rack gear on the outer peripheral surface; A top surface coupled to the upper surface of the landing body; And a ground part coupled to the bottom surface of the landing body and protruding in a pointed shape; It includes, the ground portion, has a cross-section of the right triangle shape, the pair is coupled to the bottom of the landing body to face each other, it is preferable that the insertion space is formed between the pair of ground portion.

In the multi-fixing system for geodetic surveying according to an embodiment of the present invention, the lifting drive unit, a drive motor mounted on the upper surface of the horizontal rotating plate; A drive gear coupled to the motor rotation shaft of the drive motor; And an electric gear rotatably installed on an upper surface of the horizontal rotating plate to engage the drive gear and the rack gear. It is preferable to include.

According to the present invention having the above configuration, since the surface can be easily moved to each point using a trolley, work fatigue of the surface water is remarkably reduced.

In addition, the present invention can easily maintain the original position of the surface when changing the direction of the surface using a horizontal rotating plate can minimize the error of the geodetic survey work and at the same time has the effect of significantly speeding up the survey work.

Furthermore, the present invention has the advantage that can be installed in various forms according to the state of the ground because it can be coupled to the fastening hole detachable one of the wheel portion, the buffer portion or the height adjustment portion.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining a method of surveying a level using conventional topography and surveying equipment.
2 is a view showing the overall appearance of a multi-fixing system of geodetic surveying according to an embodiment of the present invention.
Figure 3 is a front view showing a state in which the wheel portion is fastened to the fastening hole according to an embodiment of the present invention.
Figure 4 is a view showing a state of the grounding and grounding auxiliary unit according to an embodiment of the present invention.
5 is a front view showing a state in which the buffer unit is fastened to the fastening hole according to an embodiment of the present invention.
Figure 6 is a view showing an exploded state of each component of the buffer unit according to an embodiment of the present invention.
Figure 7 is a front view showing a state in which the height adjustment unit is fastened to the fastening hole according to an embodiment of the present invention.
8 is a view showing an exploded state of each component of the height adjustment unit according to an embodiment of the present invention.
Figure 9 is a cross-sectional view showing a view from below the height and height according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, the terms or words used in the specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own inventions. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can be defined.

2 is a view showing the overall appearance of a multi-fixing system of geodetic surveying according to an embodiment of the present invention.

As shown, the geodetic surveying system according to the present invention is installed so as to be lifted in the center of the trolley 100, the horizontal rotating plate 110, the horizontal rotating plate 110 is installed to be horizontally rotated and the top plate 220 at the top. ) Is installed on one side of the landing portion 200 and the horizontal rotating plate 110 is coupled and comprises a lifting and driving unit 300 for driving the landing 200.

The trolley 100 is coupled to the frame 120 of the rectangular shape, the handle 130 is coupled to the rear surface of the frame, the fastening hole 140 formed on the four corners of the lower surface of the frame, and detachable to the fastening hole, respectively. A plurality of wheels 150, coupled to the front surface of the frame and coupled to both sides of the buffer storage unit 160 and the frame that can accommodate a plurality of buffer 400 therein and a plurality of height adjustment therein It includes a height storing unit 170 that can be stored 500.

In the illustrated embodiment, the four fastening holes 140 are respectively configured with the wheels 150 coupled to each other so that the cart 100 can be easily moved. However, as described below, the fastening part 400 is provided in the fastening holes 140. ) Or height adjustment unit 500 may also be coupled to detachable.

The horizontal rotating plate 110 may be coupled to a plurality of guide rollers (not shown) to the lower surface so as to move along a circular rail (not shown) installed in the frame 120 of the trolley (100).

The landing part 200 is installed to be able to be lifted up and down through a hole formed in the center of the horizontal rotating plate 110, the landing body 210 is provided with a rack gear 211 on the outer peripheral surface, coupled to the upper surface of the landing body It is coupled to the top surface 220 and the lower surface of the landing body is a ground portion 230 protruding in a pointed form.

The top surface 220 is adjustable in height by the upper surface 221 and the lower surface 222, the scale is engraved on the front and rear surfaces of the surface 220 can be read by the number of machines during geodetic surveying work.

The lifting driving unit 300 is installed to be rotatable on the upper surface of the drive motor 310, the drive gear 320 and the horizontal rotating plate 110 coupled to the motor rotation shaft of the drive motor mounted on the upper surface of the horizontal rotating plate 110. It includes an electric gear 330 meshing with the drive gear and the rack gear.

The drive gear 320 and the electric gear 330 may use a spur gear, the rack gear 211 is formed along the circumference of each tooth (tooth) serves as a rack gear and rack gear 211 And the electric gear 330 is configured to rotate relatively in the engaged state.

A battery 180 for supplying power to the driving motor 310 is installed on the upper surface of the horizontal rotating plate 110, and is connected between the battery 180 and the driving motor 310 at one upper end of the handle 130. The motor switch 190 is provided to turn on and off the power of the driving motor 310 and to rotate the driving motor 310 in the forward direction and the reverse direction.

* Figure 3 is a front view showing a state in which the wheel portion is fastened to the fastening hole according to an embodiment of the present invention.

As shown, a plurality of wheels 150 are coupled to the frame 120 of the trolley 100 to be conveniently moved when the top surface 220 is moved to each point. I can alleviate it.

When the top plate 220 is moved, the landing part 200 is raised so that the grounding part 230 does not touch the ground, and after moving to each point, the landing part 200 is lowered to make contact with the illustrated embodiment. The branch 230 may be touched or stuck to the ground to perform geodetic surveying.

That is, in the case of moving the top surface 220, the surface motor rotates counterclockwise when the driving motor 310 is operated from the front by operating the motor switch 190 installed in the handle 130. Drive gear 320 coupled to the rotary shaft of the rotation is rotated counterclockwise, the electric gear 330 is rotated in the clockwise direction, the rack gear 211 is engaged with the electric gear 330 is raised, The landing part 200 in which the rack gear 211 is formed rises, and the ground part 230 does not touch the ground.

After the surface 220 moves to each point, if the surface water operates the motor switch 190 installed on the handle 130 so that the driving motor 310 rotates clockwise when viewed from the front, the driving motor 310 Drive gear 320 coupled to the rotary shaft of the rotation is rotated in the clockwise direction, the electric gear 330 is rotated in the counterclockwise direction, the rack gear 211 is engaged with the electric gear 330 is lowered, The landing part 200 in which the rack gear 211 is formed is lowered, and the grounding part 230 comes into contact with the ground or gets stuck in the ground.

The wheel unit 150, the wheel bracket 151 disposed on the lower portion of the frame 120, protrudes on the upper surface of the wheel bracket and the thread is formed on the outer peripheral surface can be fastened to be detachable to the fastening hole 140 The wheel fastening screw 152 and the rotating wheel 153 is rotatably coupled to the lower surface of the wheel bracket.

4 is a view illustrating a grounding unit and a grounding auxiliary unit according to an embodiment of the present invention.

As shown, a pair of grounding portions 230 are coupled to the lower portion of the landing body 210. As shown in the illustrated embodiment, a pair of grounding portions 230 are formed to face each other on both sides, and protrude to have a sharp right triangle cross section.

When the grounding unit 230 is installed on the ground for the geodetic surveying operation, the ground 220 helps the geodetic surveying operation to be stably carried out without being shaken by the outside wind.

An insertion space 231 is formed between the pair of grounding portions 230, and a fixing plate 232 formed of a magnetic material such as metal on one side of the pair of grounding portions 230 facing each other based on the insertion space 231. ) Is combined.

Since the grounding part 230 protrudes to have a pointed triangular cross section, the grounding part 230 may be easily embedded in the ground of soft soil such as soil or sand, but in a terrain that is difficult to be easily embedded such as concrete floor, the ground area is narrow, rather it may be an element that hinders stability. Can be.

Therefore, in a terrain difficult to be easily embedded such as a concrete floor, the grounding auxiliary part 240 may be additionally inserted into the insertion space 231 between the pair of grounding parts 230 so as to flatten the pointed grounding part 230. In this case, the grounding auxiliary unit 240 will mainly contact the ground.

Since the grounding auxiliary part 240 is formed in the shape of a flat plate, soil or small stones do not enter, so that foreign substances such as soil or small stones may be grounded on the ground such as an asphalt floor, a cement concrete floor, or a stone floor or a tile floor. As a result, the surface 220 does not slip, and thus the measurement accuracy can be secured.

The grounding auxiliary part 240 is formed in a rectangular parallelepiped shape as a whole, and permanent magnet plates 241 are coupled to both sides so as to face the fixing plate 232. By the fixing plate 232 and the permanent magnet plate 241, the ground auxiliary portion 240 may be naturally seated in the insertion space 231 between the ground portion 230, it may have a certain fixing force.

The ground auxiliary part 240 is in contact with the lower surface of the buffer cover 420, the elastic portion 242 disposed to be orthogonal to the pair of permanent magnet plate 241, the first portion disposed parallel to the elastic portion on the lower surface of the elastic portion The reinforcing part 243, the second reinforcing part 244 disposed on the lower surface of the first reinforcing part parallel to the first reinforcing part, and the coating part 245 disposed on the lower surface of the second reinforcing part parallel to the second reinforcing part are provided. It may include.

The elastic portion 242 is to give a grounding force to the grounding assistant as a whole so that the grounding supporter can be stably grounded on the uneven surface. The elastic part 242 is 10 to 15 parts by weight of thermoplastic polyether ester elastomer (TPEE), azodicarbonamide (100 parts by weight of a polymer formed by polymerizing 20 to 30 parts by weight of vinyl acetate monomer based on 100 parts by weight of ethylene) It is preferred to include 8 to 10 parts by weight of azodicarbonamide) and 4 to 5 parts by weight of glyoxal.

If the vinyl acetate monomer constituting the polymer is less than 20 parts by weight, the crystallinity is excessively high and the hardness of the elastic part is too high. If the vinyl acetate monomer is more than 30 parts by weight, the elasticity is too high, and the elastic part is not in place and can be slid and folded. Can be.

The thermoplastic polyether ester elastomer (TPEE) adds hardness to the elastic part. If the thermoplastic polyether ester elastomer is less than 10 parts by weight, the effect of reinforcing the hardness is insignificant, and if the thermoplastic polyether ester elastomer is more than 15 parts by weight, the melt is melted. There is a problem that the index is lowered and the workability is lowered.

Azodicarbonamide (azodicarbonamide) is to impart an additional elastic force to the elastic portion, and when the azodicarbonamide is less than 8 parts by weight, the effect of adding elastic force is insignificant, and when the azodicarbonamide is more than 10 parts by weight, it further affects the elastic force. Could not do so, worsening price competitiveness.

Glyoxal is azodicarbonamide that traps gas generated above a certain temperature and imparts high temperature viscoelasticity to the elastic part. If glyoxal is less than 4 parts by weight, the mechanical properties of the elastic part may be insufficient. If it is more than the weight part, the foaming pressure may be excessively large, which may cause the elastic part to burst.

The first reinforcing part 243 is disposed on the lower surface of the elastic part 242 to prevent the elastic part from being torn and broken. The first reinforcing part 243 is formed in a net shape so that the elastic part is not easily torn even when a force is applied to any part of the elastic part.

The second reinforcing portion 244 is disposed on the lower surface of the first reinforcing portion 243 to allow the elastic portion to move flexibly. The second reinforcing portion 244 is formed of a fabric containing glass fiber or carbon fiber.

The coating part 245 is disposed on the lower surface of the second reinforcing part 244 and the grounding auxiliary part including the elastic part 242, the first reinforcing part 243, and the second reinforcing part 244 is in contact with the ground. It protects the ground auxiliary part.

The coating part 245 preferably includes 25 to 40 parts by weight of styrene resin, 10 to 25 parts by weight of vinyl resin, and 20 to 30 parts by weight of paraffin based on 100 parts by weight of polyurethane, and prevents the elastic part from getting wet with water. In addition to the waterproof function may be provided with a wear-resistant function to prevent the elastic portion is worn.

5 is a front view illustrating a state in which a shock absorbing part is fastened to a fastening hole according to an exemplary embodiment of the present invention, and FIG. 6 is a view illustrating an exploded state of each part of the shock absorbing part according to an embodiment of the present invention.

As shown, when installing the surface 220 for geodetic surveying work on the ground with a lot of vibration around the fastening buffer 400 instead of the wheel portion 150 in the lower portion of the frame 120 to mitigate vibration or shock I can let you.

Usually, the buffer unit 400 may be accommodated in the buffer storage unit 160 coupled to the front surface of the frame 120, and may be separated and fastened to the fastening hole 140 when necessary in consideration of vibrations of the surroundings.

The buffer unit 400 includes a buffer body 410, a buffer cover 420 and the buffer bolt 430. Fastening holes 140 are formed at four corners of the frame 120. A plurality of threads are formed in the inner diameter of the fastening hole 140 along the length direction.

The buffer body 410 is coupled to the lower portion of the frame 120, the buffer through-hole 411 is formed in the center. The inner diameter of the buffer through hole 411 is different from the fastening hole 140 in that no thread is formed.

The buffer body 410 is formed in a rectangular parallelepiped shape, and is made of a material having elasticity to prevent the shock or vibration applied to the frame 120 from the ground to be transmitted upward.

For example, the buffer body 410 is preferably made of a thermoplastic elastomer. Thermoplastic elastomers have the function of rubber at room temperature but are plasticized at high temperatures to enable various molding processes.

The buffer cover portion 420 is coupled to cover the lower surface of the buffer body portion 410, the buffer head hole 421 is formed in the center. Similar to the buffer through-hole 411, no thread is formed in the inner diameter of the buffer head hole 421.

The buffer cover portion 420 is formed to have a cross-section of the 'c' shape corresponding to the shape of the lower surface of the buffer body portion 410. The shock absorbing cover part 420 prevents the shock absorbing body part 410 from being easily contacted with the outside.

In other words, the buffer cover 420 is made of a material having a relatively high hardness than the buffer body 410. The buffer cover part 420 may be made of various materials such as plastic or metal of high hardness.

As described above, the buffer body part 410 buffers external vibration, but having a too high hardness can hardly perform a shock absorbing function, and if it has a too low hardness, it may be too soft and easily worn. . That is, it is very difficult to satisfy both performances at once.

In the present invention, by improving the problem, the buffer body 410 is made of a material that is as smooth and elastic as possible to maximize the buffer function, the buffer cover 420 is made of a material of high hardness to prevent wear, Both functions can be satisfied at the same time.

The buffer bolt 430 is fastened to the fastening hole 140 by passing through the buffer head hole 421 and the buffer through hole 411, and the buffer cover 420, the buffer body 410 and the frame 120 Connect to one.

Specifically, the buffer bolt 430 has the same diameter as the fastening hole 140 and the bolt screw portion 431, the thread is formed on the outer peripheral surface, the same diameter as the buffer through hole 411, the bolt is not formed on the outer peripheral surface A bolt head portion 433 having the same diameter as the through portion 432 and the buffer head hole 421 and the thread is not formed on the outer peripheral surface.

The length of the bolt through portion 432 is the same or relatively longer than the height of the buffer through hole 411 can be maintained by the buffer body 410 is not pressed by the buffer bolt 430 to maintain the hardness.

In addition, the length of the bolt head portion 433 is the same or relatively shorter than the height of the buffer head hole 421 so that the bolt head portion 433 does not protrude out of the buffer head hole 421.

7 is a front view showing a state in which the height adjustment unit is fastened to the fastening hole according to an embodiment of the present invention, Figure 8 is a view showing a disassembled state of each component of the height adjustment unit according to an embodiment of the present invention. to be.

As shown, when the geodetic surveying work using the bogie 100 of the general shape is disposed on the lower portion of the top surface 220 is not possible, the height adjustment unit in place of the wheel portion 150 in the lower portion of the frame 120 Fastening the 500 may increase the height of the frame 120 as a whole.

The height adjustment unit 500 is normally accommodated in the height storage unit 170 coupled to the side of the frame 120, and can be separated and fastened to the fastening hole 140 when necessary in consideration of the height of the surrounding ground. .

In detail, the height adjusting part 500 includes a height bracket 510, a height fastening screw 520, an upper leg 530, a lower leg 550, and a height fixing part 560.

Height bracket 510 is coupled to the lower portion of the frame 120 is formed in the shape of a cube empty. A bolt hole 511 is formed at the center of the side of the height bracket 510 so that the leg bolt 540 can be penetrated through.

One side (lower right side in the illustrated embodiment) of the height bracket 510 is cut based on the bolt hole 511 to form a cut portion 512, and the other side of the height bracket 510 (left side in the illustrated embodiment) The lower end) is formed with a blocking portion 513.

The height fastening screw 520 is protruded to the upper surface of the height bracket 510 and a thread is formed on the outer circumferential surface can be fastened to be detachable to the fastening hole 140, the upper leg 530 is the upper bracket of the height Inserted so as to be rotatable in the 510, the height adjustment hole 531 is formed through the longitudinal direction.

The upper leg 530 may be rotated through the cutting portion 512, the blocking portion 513 is blocked and can no longer rotate. That is, the upper leg 530 may rotate only to one side of the height bracket 510.

In the present invention, the cut portion 512 is preferably disposed in the outward direction of the frame 120. In other words, the upper leg 530 can be rotated only to the outside of the frame, so that even if the upper leg 530 is folded due to diarrhea wind or the like, the frame 120 and the upper surface 220 of the upper part can be prevented from falling down. .

On the other hand, the upper portion of the upper leg 530 bolt contact piece that the end of the bolt through piece 532 and the leg bolt 540 is formed in the bolt through hole 533 at the position corresponding to the bolt hole 511 534 is formed.

Both the bolt through piece 532 and the bolt contact piece 534 are formed in a plate shape, and are disposed to face each other on the upper portion of the upper leg 530. The leg bolt 540 enters through the bolt hole 511 of the height bracket 510 and the bolt through hole 533 of the bolt through piece 532, and contacts the bolt contact piece 534 to enter. Stop.

That is, the user adjusts the rotation angle of the upper leg 530 in a loosely coupled leg bolt 540 to adjust the overall height or overall horizontal angle including the upper leg 530 and the lower leg 550, and adjust When this is completed, the leg bolt 540 is firmly tightened so that the end of the leg bolt 540 is firmly in contact with the bolt contact piece 534, thereby firmly fixing the leg bolt 540.

The height adjustment hole 531 is formed in the longitudinal direction so that the lower leg 550 can be inserted in the upper leg 530, and the lower leg 550 having the height adjusted at the lower side of the upper leg 530. Raising so that it can be fixed and the government 560 is coupled.

Figure 9 is a cross-sectional view showing a state seen from below the height and height according to an embodiment of the present invention.

As shown, the height fixing unit 560 is mounted to the lower end of the upper leg 530, allowing the user to adjust the height of the lower leg 550, and then fix the lower leg 550 in the desired position. .

As such, since the overall height can be adjusted by adjusting the height of the lower leg 550, the geodetic surveying operation can be performed smoothly without being affected by obstacles around the top surface 220.

Specifically, the height fixing part 560 is a rotating part 562 which is mounted to be rotatable in the height extension 561 protruding and extending to the lower side of the upper leg 530, extending to the outside of the rotating part and a plurality of incisions 564 is formed is coupled to the lower surface of the elastic extension portion 563 and the upper leg 530 having an elastic restoring force and the 'C' shape is disposed to wrap around the outer periphery of the height adjustment hole 531 Section 565.

Since the plurality of cutouts 564 are arranged at predetermined intervals in the middle portion of the elastic extension part 563, the elastic extension part 563 is retracted in the direction of the rotation part 562 or opposite to the rotation part 562. Can be unfolded in the direction.

A contact end 566 is formed at one end of the engaging portion 565, and a prevention end 567 is formed at the other end. A plurality of height determining grooves 551 are formed in the lower leg 550 to have a predetermined interval along its longitudinal direction.

When the height of the lower leg 550 is determined, the elastic extension portion 563 is located between the contact end portion 566 and the prevention end portion 567 and is inserted into the height determining groove 551, the height of the lower leg 550 Is not yet determined and is movable up and down, the elastic extension portion 563 is located in the area outside the contact end portion 566 as shown in FIG.

The contact end portion 566 is in contact with the end of the elastic extension portion 563 in accordance with the rotation of the elastic extension portion 563, the elastic extension portion 563 may selectively ride over. The elastic restoring force of the elastic extension part 563 is such that the elastic extension part 563 can cross the contact end 566 when the rotation part 562 is rotated by inserting a tool into the tool groove formed in the rotation part 562. Is determined.

To this end, the contact end portion 566 has a round shape similar to the end portion of the elastic extension portion 563, and is disposed at a position not exceeding an area where the height determining groove 551 is disposed.

When the user rotates the rotating part 562 in the clockwise direction, the elastic extension part 563 is in contact with the contact end portion 566, and in this state is further applied to rotate the rotating part 562 to the incision 564. As a result, the elastic extension part 563 is retracted, and is carried over the contact end 566 and inserted into the height determination groove 551.

If the elastic extension portion 563 is beyond the contact end portion 566, if the user further rotates the rotating portion 562, the side portion of the elastic extension portion 563 is in contact with the prevention end portion 567 and blocked. Accordingly, excessive rotation of the elastic extension portion 563 is prevented.

The prevention end portion 567 is in contact with the side surface of the elastic extension portion 563, and is disposed at a position beyond the area where the height determining groove 551 is disposed. That is, if the contact end 566 is disposed in a portion that does not invade the area where the height determining groove 551 is disposed, the prevention end 567 is disposed on the area in which the height determining groove 551 is disposed.

The contact end portion 566 is in contact with the end of the elastic extension portion 563, while the prevention end portion 567 is formed to be in contact with the side of the elastic extension portion 563, the elastic extension portion 563 is the prevention end portion It is impossible to go beyond 567.

If the user wants to adjust the height of the lower leg 550 again, by rotating the rotating part 562 counterclockwise to the contrary to the above process, the elastic extension part 563 contracts and rides on the contact end 566 again. It is moved away from the height determination groove 551.

As described above, the present invention has an advantage that the height of the lower leg 550 can be adjusted to be easily inserted into the upper leg 530 only by rotating the pivot 562.

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

100: trolley 110: horizontal rotating plate 120: frame
130: handle 140: fastening hole 150: wheel
151: wheel bracket 152: fastening screw 153: rotating wheel
160: buffer storage unit 170: height storage unit 180: battery
190: motor switch 200: landing part 210: landing body
211: rack gear 220: surface 221: upper surface
222: lower surface 230: ground portion 231: insertion space
232: fixing plate 240: grounding auxiliary portion 241: permanent magnet plate
242: elastic portion 243: first reinforcing portion 244: second reinforcing portion
245: coating part 300: lifting driving part 310: driving motor
320: drive gear 330: electric gear 400: shock absorber
410: buffer body portion 411: buffer through hole 420: buffer cover portion
421: buffer head hole 430: buffer bolt 431: bolt screw part
432: bolt through portion 433: bolt head portion 500: height adjustment portion
510: height bracket 511: bolt hole 512: cutting
513: prevention part 520: height tightening screw 530: upper leg
531: height adjustment hole 532: bolt through section 533: bolt through hole
534: bolt contact piece 540: leg bolt 550: lower leg
551: height determination groove 560: height fixing 561: height extension
562: rotation part 563: elastic extension 564: incision
565: engaging portion 566: contact end 567: prevention end

Claims (1)

A bogie in which the horizontal rotating plate is installed to be horizontally rotatable; Landing unit is installed so as to be elevated in the center of the horizontal rotating plate coupled to the top; And an elevating driving unit installed at one side of the horizontal rotating plate and elevating and driving the landing portion. Including but not limited to:
The balance is,
Square-shaped frame; A handle coupled to the rear face of the frame; Fastening holes formed in the four corners of the lower surface of the frame; A plurality of wheel parts coupled to each of the fastening holes to be detachable; A buffer housing unit coupled to the front surface of the frame and configured to accommodate a plurality of buffer units therein; And a height storing unit coupled to both sides of the frame and having a plurality of height adjusting units stored therein. Including,
The fastening hole may be coupled to any one of the wheel portion, the buffer portion separated from the buffer storage portion or the height adjustment portion separated from the height storage portion,
The wheel part,
Wheel brackets disposed in the lower portion of the frame; A wheel fastening screw which protrudes on an upper surface of the wheel bracket and can be fastened to be detachable to a fastening hole by forming a thread on an outer circumferential surface thereof; Rotating wheel coupled to the lower surface of the wheel bracket; Including,
The buffer part,
A buffer body portion coupled to a lower portion of the frame and having a rectangular parallelepiped having a buffer through hole formed therein; A buffer cover portion coupled to cover the lower surface of the buffer body portion and having a buffer head hole formed therein; And a buffer bolt that is fastened to the fastening hole through the buffer head hole and the buffer through hole and connects the buffer cover part, the buffer body part, and the frame to one; Including;
The buffer bolt,
A bolt screw part having the same diameter as a fastening hole having a screw thread formed therein and a thread formed on an outer circumferential surface thereof; A bolt through portion having the same diameter as the buffer through hole and having no thread formed on its outer circumferential surface; And a bolt head portion having the same diameter as that of the buffer head hole and having no thread formed on the outer circumferential surface thereof. Including,
The height adjustment unit,
A height bracket disposed under the frame and having an empty interior; A height fastening screw protruding from the upper surface of the height bracket, the thread being formed on the outer circumferential surface thereof, and fastening to be detachable from the fastening hole; An upper leg whose upper end is rotatably inserted into the height bracket, and the height adjusting hole is formed through the longitudinal direction thereof; A lower leg inserted into a lower portion of the upper leg and movable up and down, and having a plurality of height determining grooves formed at predetermined intervals along its length direction; And a height fixing part coupled to the lower side of the upper leg and capable of fixing the lower leg whose height is adjusted; Including;
The height bracket,
A bolt hole is formed at the center of the side to allow the bolt to be penetrated and the cutting hole is formed on one side of the bolt hole to provide a space for the upper leg to rotate. To prevent the upper leg from rotating,
The height of the government,
A rotating part rotatably mounted to a height extension part protruding and extending to the lower end side of the upper leg; An elastic extension part extending outwardly of the rotation part and having a plurality of cutout parts having elastic restoring force; And a 'C' shaped locking portion coupled to the bottom surface of the upper leg and disposed to cover the outer circumference of the height adjustment hole; Including,
The locking portion,
A contact end portion formed at one end of the engaging portion and contacting the end of the elastic extension portion and disposed at a position not exceeding an area where a plurality of height determining grooves are disposed; And a prevention end portion formed at the other end of the locking portion and in contact with the side surface of the elastic extension portion and disposed at a position beyond the area where the height determining groove is disposed. Including;
The elastic extension part is rotated together in accordance with the rotation of the rotating part, the end is retracted as it comes in contact with the contact end, is expanded while extending over the contact end is inserted into the height-determining groove, blocked by the prevention end, can not be rotated anymore,
The landing portion,
A landing body provided with a rack gear on an outer circumferential surface thereof; A top surface coupled to the upper surface of the landing body; And a ground part coupled to the bottom surface of the landing body and protruding in a pointed shape; Including;
The ground portion,
It has a cross-section of a right triangle shape, the pair is coupled to the bottom of the landing body to face each other, an insertion space is formed between the pair of grounding,
The lifting drive unit,
A drive motor mounted on an upper surface of the horizontal rotating plate; A drive gear coupled to the motor rotation shaft of the drive motor; And an electric gear rotatably installed on an upper surface of the horizontal rotating plate to engage the drive gear and the rack gear. Multi-fixed system of geodetic surveying, comprising a.

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