KR102635209B1 - Geodetic surveying device for holding vertically and protecting of staff - Google Patents

Abstract

The present invention relates to a geodetic surveying device, and more specifically, to a movable unit equipped with a plurality of wheels and capable of moving forward, backward, left, and right, a first vertical support, a second vertical support, and a first vertical support installed upright on the upper part of the moving part. An absorption connection unit that connects the second vertical support and cushions the shock transmitted to the first vertical support and the second vertical support, a horizontal support horizontally coupled to the top of the first vertical support and the second vertical support, and the lower part of the horizontal support. It is characterized in that it includes a detachable fastening part mounted on the detachable fastening part, a semicircular body part detachably coupled to the lower part of the detachable fastening part, and a reference part movably coupled to the lower part of the semicircular body part, so that the verticality of the measuring part is automatically aligned and the table is at the same time. It relates to a geodetic surveying device that maintains a geodetic surveying scale vertically and protects it from external shocks occurring around the scale.

Description

A geodetic surveying device that maintains the target for geodetic surveying vertically and protects it from impact {GEODETIC SURVEYING DEVICE FOR HOLDING VERTICALLY AND PROTECTING OF STAFF}

The present invention relates to a geodetic surveying device, and more specifically, to a geodetic surveying device that maintains a target for geodetic surveying vertically and protects it from impact.

In general, for various civil engineering or architectural designs, geodetic surveying must be performed first. Geodetic surveying refers to various activities such as measuring horizontal distance, elevation difference and direction, determining the location of each measurement point, displaying this in drawings or figures, and staking out on site.

Among these geodetic surveys, level surveying is a survey that determines the height difference between two points using a marker and level, and its accuracy is 5mm * S/2 for level 2 surveying (where S is the one-way distance and the unit is km). (is) A detailed measurement is required to the extent that it is specified within the range.

FIG. 1 is a diagram illustrating a method of measuring a level using a conventional marker and level, and FIG. 2 is a diagram showing the general configuration of a conventional marker.

In the first step, the marker (1) sets the marker (1) at the ground reference point (a0) whose altitude is known, and the mechanical operator uses a level, etc. at the first observation point (b1) a certain distance away. Read the scale on the scale (1) with the measuring device (2).

In the second step, the marker moves to the first point (a1) and sets up the marker (1), and the mechanic changes the direction of the measuring instrument (2), such as a level, at the observation point (b1) to measure the level, etc. Read the scale at the first point through the device (2). Here, the altitude of the first point is obtained from the difference between the scales 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 operator moves to the second observation point (b2) behind the first point (a1), and the target operator changes the direction of the target target (1) in place (first point) so that the target target (1) is level. When looking at a measuring device (2) such as a flag, the operator reads the scale at the first point (a1) using a level from the second observation point (b2).

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

In this way, while continuously moving the measuring instruments (2), such as the measuring stick (1) and the level, the direction of the measuring stick at each point and the level at each observation point is changed to read the scale to determine the altitude of each point up to the target point. Save.

At this time, depending on the elevation difference between the reference point (a0) or the first and second points (a1, a2) where the target is erected and the first and second observation points (b1, b2) where the surveying equipment (2) such as a level is mounted, The height of the target scale must be adjusted, and as shown in FIG. 2, the conventional target scale combines two upper and lower scales 1a and 2b so that the length can be adjusted in a slide telescopic manner.

To adjust the height of the scale, hold the scale (1) with one hand, loosen the coupling screw (not shown) that connects the lower scale (1a) and the upper scale (1b), and then use the lower scale (1a) with one hand. ) and push or pull while holding the upper axle (1b) with the other hand to adjust the height of the axle (1), and then tighten the combination screw that secures the lower axle (1a) and the upper axle (1b) to adjust the lower axle (1a). Since (1a) and the upper bar (1b) must be combined in a height-adjusted state, not only does the height adjustment process become cumbersome, but there is also a problem in that the vertical state of the bar is changed during the process of adjusting the length of the bar, so it must be re-aligned. .

In addition, in the process of geodetic surveying, in the process of geodetic surveying, in the case of a conventional marker, when the marker erected on the ground is subjected to vibration or shock from the surroundings, the marker is shaken in the process of reading the scale using a level at a certain distance, making it difficult to accurately read the scale. There is a problem in that it becomes unreadable, resulting in measurement errors.

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

The present invention is intended to solve the problems of the prior art described above, and at the same time, the verticality of the target portion is automatically aligned, and at the same time, the target target for geodetic surveying, which can protect the target portion from external shocks occurring around the target portion, is maintained vertically and shock is prevented. The purpose is to provide geodetic surveying equipment that protects.

In addition, another purpose of the present invention is to provide a geodetic surveying device that maintains the target for geodetic surveying vertically and protects it from impact, which can minimize measurement errors because the target can maintain its current position when changing the direction of the target. there is.

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 can 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 includes a moving part equipped with a plurality of wheels and capable of moving forward, backward, left and right; A first vertical supporter and a second vertical supporter installed upright on the upper part of the moving part; An absorption connection unit connecting the first vertical support and the second vertical support and cushioning the shock transmitted to the first vertical support and the second vertical support; A horizontal support horizontally coupled to the top of the first vertical support and the second vertical support; A detachable fastening part mounted on the lower part of the horizontal support; A semicircular body portion detachably coupled to the lower part of the detachable fastening portion; And a target portion movably coupled to the lower part of the semicircular body portion; It is characterized by including.

In the geodetic surveying device that maintains the target for geodetic surveying vertically and protects against impact according to an embodiment of the present invention, the moving part includes a support plate and a handle coupled to one side of the support plate, and a wheel can enter the lower part of the support plate. A lifting bracket with a lifting groove is coupled to the wheel, and the wheel can be lifted up and down by being coupled to the lifting bracket via a lifting cylinder. The lifting cylinder is electrically connected to the control unit built into the support plate and is connected to the switch connected to the handle. It is preferably driven according to operation, and the lower end of the handle is coupled to one side of the support plate via a hinge and can be rotated back and forth.

In the present invention, the absorption connection unit includes a horizontal connection bar disposed between the first vertical support member and the second vertical support member; A pair of absorption connection cases respectively coupled to both sides of the horizontal connecting band; A fastening connector disposed inside the absorption connection case, having a hole through which the first vertical support or the second vertical support passes, and having a groove through which the horizontal connecting member is detachably coupled; a spring supporter disposed between the absorption connection case and the opposite side of the fastening connector to which the horizontal connection member is detachably coupled; a first vertical support or a second vertical support that enters the interior of the absorption connection case, and four elastic rings respectively inserted into one area of the horizontal connection and spring supports; Connector balls each coupled to the four elastic rings 430 and connecting rods; A shock absorbing portion coupled to the connector ball and the support rod and formed on each corner of the inner surface of the absorbing connection case; It is desirable to include.

In the present invention, the detachable and fastening portion includes an upper detachable case that is coupled to the lower part of the horizontal support, has a receiving space therein, and has a U-shaped cross section; A lower detachable case that is inserted and fastened into the receiving space of the upper detachable case and has an inverted U-shaped cross section; A first compression portion and a second compression portion are formed to face each other on the upper and lower surfaces of the upper detachable case based on the accommodation space and have a semicircular cross-section; It is preferable to include a first elastic head and a second elastic head formed to be spaced apart from each other in the upper region of the lower detachable case.

In the present invention, the semicircular body portion includes a semicircular connecting band coupled to the lower part of the detachable fastening portion; A semicircular body coupled to the lower end of the semicircular connection band and installed so that the target portion moves in a semicircular path; A moving guide groove formed in the lower part of the semicircular body; and a pair of movement guide parts provided inside the movement guide groove to guide the movement of the target unit. It is desirable to include.

In the present invention, the measuring unit includes a measuring support ball provided on a semicircular body to be moved in a semicircular direction; A target support support provided on the target support ball and moved together with the target support ball; An upper index coupled to the end of the index support; and a lower indicator disposed below the upper indicator and capable of moving up and down. It is desirable to include.

In the present invention, the moving guide part includes a ball support body provided in a moving guide groove in contact with the target support ball; A groove support body provided at the edge of the moving guide groove; A central support portion provided in the moving guide groove to be disposed between the ball support body and the groove support body; A first moving spring, one side of which is coupled to the ball support body and the other side of which is coupled to the central support portion; and a second moving spring, one side of which is coupled to the groove support body and the other side of which is coupled to the central support portion; It is desirable to include.

In the present invention, the central support portion includes a central support ball disposed at a mid-height of the moving guide groove; A plurality of central connection legs, one end of which is connected to the central support ball and supporting the central support ball; and a plurality of center guide balls provided at the other end of the plurality of center connection legs and supported on the inner wall of the moving guide groove. It is desirable to include.

The present invention, which has the above configuration, has the advantage of being able to reduce the work fatigue of the scaler even when geodetic surveying a large area because the scale can be easily moved using the moving part, and the work can be carried out quickly.

In addition, in the present invention, since the measuring unit can be rotated by the horizontal rotating unit, it is possible to minimize the covering of the measuring unit by the moving unit during geodetic survey work, and the vertical alignment of the measuring unit is immediately achieved.

Furthermore, the present invention can protect the target from external shocks occurring around the target, and at the same time, the target can accurately rotate in place when the target changes direction, which has the effect of significantly reducing measurement error.

The attached drawings are intended as reference for understanding the technical idea of the present invention, and are not intended to limit the scope of the present invention.
1 is a diagram illustrating a method of measuring level using a conventional measuring stick and level.
Figure 2 is a diagram showing the general configuration of a conventional target.
Figure 3 is a diagram showing the overall appearance of a geodetic surveying device that maintains a target for geodetic surveying vertically and protects against impact according to an embodiment of the present invention.
Figure 4 is a longitudinal cross-sectional view showing the appearance of a lifting bracket according to an embodiment of the present invention.
Figure 5 is a cross-sectional view of an absorption connection unit according to an embodiment of the present invention.
Figure 6 is an enlarged view of part B of Figure 5.
7A to 7B are cross-sectional views of a detachable fastening portion according to an embodiment of the present invention.
Figure 8 is a view showing the appearance of a semicircular body portion and a measuring portion according to an embodiment of the present invention.
Figure 9 is a diagram schematically showing a movement guide unit mounted inside a movement guide groove according to an embodiment of the present invention.

Hereinafter, based on the attached drawings, the present invention will be described in detail so that those skilled in the art can easily practice it. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly explain the present invention, parts that are not relevant to the description are omitted, and identical or similar components are assigned the same reference numerals throughout the specification.

In addition, terms or words used in this specification and patent claims should not be construed as limited to their usual or dictionary meanings, and the inventor must appropriately use the concept of terms to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability.

Figure 3 is a view showing the overall appearance of a geodetic surveying device that maintains the target for geodetic surveying vertically and protects against impact according to an embodiment of the present invention, and Figure 4 is a view of a lifting bracket according to an embodiment of the present invention. This is a longitudinal cross-sectional view showing.

As shown, the geodetic surveying device according to the present invention includes a moving part 100 equipped with a plurality of wheels 150 and capable of moving forward, backward, left, and right, and a first vertical support installed upright on the upper part of the moving part 100 ( By connecting the 600 and the second vertical support 610, and the first vertical support 600 and the second vertical support 610, the shock transmitted to the first vertical support 600 and the second vertical support 610 is cushioned. The absorption connection unit 400, the horizontal support 620 horizontally coupled to the top of the first vertical support 600 and the second vertical support 610, and the detachable fastening part mounted on the lower part of the horizontal support 620 ( 300), a semicircular body portion 500 detachably coupled to the lower portion of the detachable fastening portion 300, and a target portion 200 movably coupled to the lower portion of the semicircular body portion 500.

The moving unit 100 consists of a support plate 110 and a handle 120 coupled to one side of the support plate, and a lifting bracket 140 is coupled to the lower part of the support plate 110 to form a wheel 150 and a support plate 110. ) connect between. A control unit 112 is built into the support plate 110, and a switch 121 is coupled to the handle 120.

The control unit 112 electrically connects components such as the switch 121 and the lifting cylinder 142, which will be described later. Since this electrical connection structure is a common technology and is not a core component of the present invention, detailed illustration and description thereof will be omitted. In addition, although not shown, a battery, etc. may be built into one side of the support plate 110 so that each component can be driven through a control unit.

In the illustrated embodiment, the support plate 110 is formed in the shape of a square plate, and the handle 120 is formed in the shape of a 'ㄷ', but is not limited thereto and can be formed in various shapes according to the needs of the user (receiver). It can be transformed.

The lower end of the handle 120 is coupled to one side of the support plate 110 via a hinge 130 and can be rotated in the forward and backward directions. That is, when moving the moving unit 100, the user can move it comfortably by raising the handle 120, and when performing geodetic survey work, the user can lay down the handle 120 so as not to interfere with the work.

The switch 121 may be equipped with various buttons for operating the lifting cylinder 142, etc., which will be described later. The user can easily operate each component of the present invention just by pressing the button on the switch 121.

A horizontal rotating part 111 connected to the lower ends of the first vertical support 600 and the second vertical support 610 may be mounted on one side of the support plate 110. The horizontal rotation part 111 is inserted into the rotation groove formed in the support plate 110 so that the first vertical support 600 and the second vertical support 610 can rotate in the axial direction.

The horizontal rotation unit 111 may be implemented with a rotatable drive motor, etc., and this drive motor may be electrically connected to the control unit 112 and operated by the switch 121.

The horizontal rotating part 111 includes a first vertical support 600, a second vertical support 610, an absorption connection unit 400, a detachable fastening part 300, a semicircular body part 500, and a measuring unit 400. Since it can be rotated horizontally at once, it is possible to significantly reduce the work being interrupted by the moving part 100 during geodetic survey work, and it is possible to enable geodetic survey work at the optimal position considering the working environment such as wind. .

A lifting bracket 140 having a lifting groove 141 is coupled to the lower part of the support plate 110 so that the wheel 150 can enter. The lifting bracket 140 is formed to have an overall 'ㄷ'-shaped cross section when viewed from above to protect the exterior of the wheel 150, and the lower end is formed to be flat so that it can be stably grounded to the ground.

The wheel 150 is coupled to the lifting bracket 140 via the lifting cylinder 142 and can be lifted up and down. The lifting cylinder 142 is electrically connected to the control unit 112 built into the support plate 110 and driven by the operation of the switch 121 coupled to the handle 120.

When moving, the user exposes the wheel 150 to the outside of the lifting bracket 140 so that the moving part 100 can be easily moved. When performing geodetic survey work, the wheel 150 is exposed to the outside of the lifting bracket 140. It can be retracted so that the moving part 100 can be fixed to the ground.

When the lifting cylinder 142 is fully deployed, the lowermost end of the wheel 150 is located relatively lower than the lowermost end of the lifting bracket 140, and when the lifting cylinder 142 is maximally reduced, the lower end of the wheel 150 The lowest end is located relatively higher than the lowest end of the lifting bracket (140).

The hinge 130 is configured to connect the lower end of the handle 120 and one side of the support plate 110 so that the handle can be rotated back and forth. By using the hinge 130, the user can prevent the handle 120 from interfering with the work during geodetic survey work.

Figure 5 is a cross-sectional view of an absorption connection unit according to an embodiment of the present invention, and Figure 6 is an enlarged view of portion B of Figure 5.

The absorption connection unit 400 alleviates the shock transmitted to the first vertical support 600 and the second vertical support 610 and simultaneously connects the first vertical support 600 and the second vertical support 610. performs its function. In addition, the absorption connection unit 400 absorbs shocks such as wind volume and vibration transmitted from the inside and outside of the moving unit 100 and helps enable precise measurement of the target unit 200 at the same time.

On the other hand, the first vertical support 600, the second vertical support 610, the horizontal support 620, the support plate 110, or the horizontal rotating part 111, 2.2 to 4.4% by weight of nickel (Ni), 0.4 to 4.4% by weight. 2.3% by weight of manganese (Mn), 2.1 to 7.9% by weight of copper (Cu), 0.5 to 2.7% by weight of tungsten (W), 0.4 to 2.6% by weight of iron (Fe), 0.5 to 0.9% by weight of chromium ( Cr), 6.8 to 7.2% by weight of zinc (Zn), 7.1 to 8.8% by weight of silicon (Si), 1.8 to 1.9% by weight of magnesium (Mg), and the balance aluminum (Al) as a high-strength aluminum alloy. can be formed. As will be described later, depending on the needs of the invention, the horizontal connecting bar 401 may also be formed of the above high-strength aluminum alloy.

When the first vertical support 600, the second vertical support 610, the horizontal support 620, the support plate 110, or the horizontal rotating part 111 are formed with the above high-strength aluminum alloy, the compressive strength is 590 MPa to 640 MPa. value, elongation has a value of 12.3% ~ 16.9%, rigidity, durability. It can exhibit excellent mechanical properties such as fatigue strength.

Meanwhile, the absorption connection unit 400 includes a pair of horizontal connection units 401 disposed between the first vertical support unit 600 and the second vertical support unit 610, each coupled to both sides of the horizontal connection unit 401. It includes an absorption connection case 480.

The absorption connection case 480 has a hole through which the first vertical support 600 or the second vertical support 610 penetrates, and a groove through which the horizontal connection 401 is detachably coupled. A fastening connector 410 is provided. The fastening connector 410 and the horizontal connecting bar 401 can also be fastened with female threads and male threads, respectively, and according to the needs of the invention, a fastening ring (not shown) is formed at the end of the horizontal connecting bar 410 to connect the fastening connector. It may also be possible to fasten it so that it catches on the groove jaw of (410).

A spring support 420 is provided between the absorbing connection case 480 and the opposite side of the fastening connector 410 to which the horizontal connecting bar 401 is detachably coupled to absorb and support shock on both sides of the horizontal connecting bar 401.

The first vertical support 600 or the second vertical support 610, the horizontal connection 401, and the spring support 420 that have entered the absorption connection case 480 have an elastic ring 430 inserted in their area. , the four elastic rings 430 are coupled to the connector ball 450 through the connecting rod 440.

Referring to FIG. 6, the connector ball 450 is coupled to the shock absorbing portion 470 formed at each corner of the absorbing connection case 480 through the support rod 460. The shock absorber 470 may have a semicone cross section.

The shock absorber 470 may be provided with an elastic body 490 formed in a semi-cone shape with a cut end therein, and the support rod 460 extending from the connector ball 450 is elastic. It may be seated on the body 490. Here, the end of the support rod 460 may be formed of a plurality of elastic wheels 461, and the elastic body 490 may be provided with a wheel stopper 491 that limits the movement of the elastic wheels 461. .

That is, when an impact or external force is transmitted inside or outside the moving unit 100, the support rod 460 and the elastic wheel 461 move or twist on the elastic body 490 to alleviate the external force/impact, but , in order to prevent damage to internal parts of the absorption connection case 480, movement may be limited to only the wheel stoppers 491 provided on the upper surfaces of both ends of the elastic body 490. The wheel stopper 491 may be formed on the upper and lower sides of the wheel stopper 491, respectively, and may be formed by adjusting the position on the upper surface of the elastic body 490 in consideration of the movement limit distance of the elastic wheel 461. There will be.

As such, in the present invention, by providing an absorption connection unit 400 including a horizontal connection bar 401 between the first vertical support 600 and the second vertical support 610, vibration, shock, and wind power transmitted from the outside of the vehicle are absorbed. It relaxes and provides rigidity to the moving part 100 and each of its components.

That is, the present invention arranges the horizontal connecting bar 401 between the first vertical support 600 and the second vertical support 610 through a pair of fastening connectors 410, thereby forming the first vertical support 600 and the second vertical support 610. 2. Integrity between the vertical support 610 and the horizontal connection 401 is provided to disperse the shock.

In addition, the horizontal shock is alleviated by the spring support 420 disposed inside the absorption connection case 480, and the four elastic rings 430, eight connection rods 440, and four connector balls 450 ), four support rods 460, and four shock absorbers 470 can be optimized to alleviate shocks and external forces from any direction.

In the present invention, the elastic ring 430, the elastic body 490, the elastic wheel 461 or the wheel 150 includes 34 to 58 parts by weight of carbon black, based on 100 parts by weight of ethylene propylene diene rubber (EPDM), 2 to 6 parts by weight of a crosslinking accelerator mixed with dipentamethylenethiuramtetrasulfide and N-oxydiethylenesulfenamide in a weight ratio of 1:1, 4 to 9 parts by weight of trimethylquinoline, 2 to 7 parts by weight of tin oxide, and sulfur. It may be formed of an elastomer composition containing 0.4 to 1 part by weight.

When an elastic ring (430), an elastic body (490), an elastic wheel (491), or a wheel (150) is formed with the above elastomer composition, the tensile strength is 230 to 240 kgf/cm2 and the vibration insulation according to KSM 6518 is 1.9 to 2.6. Within the range, it can bring about effects such as improvement of mechanical properties and durability as well as improvement of vibration noise performance.

7A to 7B are cross-sectional views of a detachable fastening portion according to an embodiment of the present invention.

The detachable and fastening part 300 according to the present invention is mounted on the lower part of the horizontal support 620, and the semicircular body part 500 is coupled to the lower part of the detachable and fastening part 300. The detachable fastening part 300 of the present invention can easily attach and detach the semicircular body part 500 and the measuring unit 200 while maintaining the firmness of the fastening, so that precise measurement of the measuring unit 200 is possible. , It becomes easy to separately store and manage the semicircular body part 500 and the measuring unit 200 while the moving part 100 is not in operation.

Specifically, the detachable and fastening portion 300 is coupled to the lower part of the horizontal support 620 and is inserted into and fastened to the upper detachable case 310 with an accommodating space formed therein, and the accommodating space of the upper detachable case 310. It may be configured to include a detachable lower case 320.

The upper detachable case 310 may have a 'L' shaped cross section with an accommodating space formed therein, and may be divided into an upper surface and a lower surface based on the accommodating space.

The lower detachable case 320 can be inserted and fastened into the receiving space of the upper detachable case 310, and a semicircular body portion 500 is coupled to the lower part of the lower detachable case 320 through a semicircular connection bar 510. . The lower detachable case 320 may have an 'inverted C' shaped cross section, but is not necessarily limited to this, and may have a shape that is deformed to facilitate insertion and fastening according to the shape of the upper detachable case 310. .

The upper and lower inner surfaces of the upper and lower detachable cases 310 and lower detachable cases 320, where the accommodating space is formed, are any one selected from silver, copper, nickel or aluminum, which are metal nanoparticles containing carbon, depending on the needs of the invention. 3 to 17 parts by weight of the above alloy or mixture, 0.2 to 7 parts by weight of one or more surfactants selected from the group consisting of polyethylene glycol alkylphenyl ether, polyoxyethylene lanoline alcohol ether, polyvinylpyrrolidone, and sodium citrate. 0.2 to 6 parts by weight of one or more dispersants selected from the group consisting of the remaining portion may be coated with a coating composition that is a lubricant.

When the inner surfaces of the upper detachable case 310 and the lower detachable case 320 are coated with the above lubricating coating composition, the first elastic head 321 and the second elastic head 322 of the lower detachable case 320 are inserted. , even if fastening and disengagement are repeated, the efficiency of metal phase utilization of metal nanoparticles is improved, and this has the advantage of not only improving the lubricity and wear resistance of the surface of the sliding area, but also recovering the damaged area of the friction area.

Meanwhile, a first compression portion 313 and a second compression portion 314 are formed to face each other on the upper and lower surfaces of the upper detachable case 310. This is to secure the first elastic head 321 and the second elastic head 322 of the lower detachable case by pressing them when the lower detachable case 320 is inserted and fastened to the upper detachable case 310. The first compression portion 313 and the second compression portion 314 may have a semicircular cross section, but are not necessarily limited thereto and may be formed in various geometric shapes.

Additionally, a first detachment stopper 311 is formed on the upper surface of the upper detachable case 310, and a second detachable stopper 312 is formed on the lower surface of the upper detachable case 310. This is so that after the elastic heads 321 and 322 of the lower detachable case are fastened to the upper detachable case 310, they cannot be easily released even if vibration or impact of the vehicle occurs.

It is preferable that the first detachment stopper 311 and the second detachment stopper 312 are not formed to face each other, but are spaced apart from each other by a distance equal to the side thickness d of the lower detachable case 320.

The lower detachable case 320 also has a receiving space so that the lower part of the upper detachable case 310 can be inserted, and a first elastic head 321 and a second elastic head ( 322) are formed spaced apart from each other.

The first elastic head 321 and the second elastic head 322 may be made of a material with excellent elastic recovery ability, and are inserted into the receiving space of the upper detachable case 310 to form the first compression portion 313 or the second elastic head 322. It may be formed taking its diameter into consideration so that it is pressed against the pressing portion 314.

That is, the first elastic head 321 and the second elastic head 322 are inserted and distorted horizontally while passing through the first detachment stopper 311 and the second detachment stopper 312, and the first elastic head 321 ) When the worker applies force so that it passes through the second compression portion 314 and is compressed by the first compression portion 313, the second elastic head 322 is naturally compressed by the second compression portion 314, Insertion and fastening of the upper detachable case 310 and the lower detachable case 320 are completed.

In the present invention, the first elastic head 321 and the second elastic head 322 include 34 to 58 parts by weight of carbon black and dipenta based on 100 parts by weight of ethylene propylene diene rubber (EPDM), depending on the needs of the invention. 2 to 6 parts by weight of a crosslinking accelerator mixed with methylenethiuramtetrasulfide and N-oxydiethylenesulfenamide in a weight ratio of 1:1, 4 to 9 parts by weight of trimethylquinoline, 2 to 7 parts by weight of tin oxide, and 0.4 to 0.4 to 100 parts by weight of sulfur. It may be formed of an elastomer composition containing 1 part by weight, and in addition to such a high-elasticity rubber composition, any known material with good elastic recovery may also be applied.

In order to easily insert and fasten the upper detachable case 310 and the lower detachable case 320, the first elastic head 321 is made of a material with better elastic recovery force than the second elastic head 322, or The diameter of the first elastic head may be formed to be smaller than the diameter of the second elastic head.

Here, as an example, if the diameter of the first elastic head is formed to be smaller than the diameter of the second elastic head, and the radius of the first compression portion 313 is formed to be larger than the radius of the second compression portion 314, , solid fastening will be possible.

In the present invention, each component of the moving unit 100, the support plate 110, the horizontal rotation unit 111, the target support 220, the first vertical support 600, the second vertical support 610, and the horizontal support 620. ), and each component of the detachable and fastening portion 300, each component of the absorption connection unit 400, or each component of the semicircular body portion 500 contains 25-37% by weight of butyl, respectively, based on the total composition. A fluid composition containing len glycol, 1.0-2.0% by weight of triphenyl phosphate, 1.0-4.0% by weight of Fucitol, 1.0-2.0% by weight of molybdate, and 60-72% by weight of trimethylene glycol. Can be coated.

Each component of the first vertical support 600, the second vertical support 610, the horizontal support 620, and the detachable fastening part 300 or each component of the absorption connection unit 400 is made with the above fluid composition. When coated, compared to existing fluid compositions for shock absorbers, it has less impact on elastomers such as rubber and metal materials, preventing the occurrence of cracks due to physical impact, reducing changes in elongation of rubber materials, and exhibiting excellent corrosion resistance to metal materials. It has the advantage of preventing deterioration of the durability of rubber and various metal alloys due to aging and deterioration and product deformation due to volume changes.

Figure 8 is a diagram showing the appearance of a semicircular body portion and a target portion according to an embodiment of the present invention, and Figure 9 schematically shows a movement guide portion mounted inside the movement guide groove according to an embodiment of the present invention. It is a drawing.

The semicircular body portion 500 according to the present invention allows the target portion 200 to be moved while maintaining the vertical direction and allows the target portion 200 to move smoothly. The semicircular body portion 500 is connected to the detachable and fastening portion 300 and may serve as a connection location for the target portion 200.

As shown, the semicircular body portion 500 is coupled to the lower end of the semicircular connecting band 510 and the semicircular connecting band 510, which is coupled to the lower part of the detachable and fastening portion 300, and the target portion 200 is connected to the semicircular path. A semicircular body 520 that is movably installed, a moving guide groove 530 formed in the lower part of the semicircular body 520, and a pair of devices provided inside the moving guide groove 530 to guide the movement of the target unit 200. Includes a movement guide unit 540.

A moving guide groove 530 is provided at the lower part of the semicircular body 520. In this embodiment, the bar support ball 210 of the bar 200 is disposed in the movement guide groove 530 and can be moved in the direction of the center of gravity corresponding to the inclination of the semicircular body 520. That is, in this embodiment, the target support ball 210 can be moved in the left and right directions of the movement guide groove 530.

The target unit 200 is provided on the target support ball 210, which is provided to move in the semicircular direction in the movement guide groove 530 of the semicircular body 520, and is provided on the target support ball 210, such as the target support ball 210. A moving target support 220, an upper target 230 provided at the end of the target support 220. It includes a lower target 240 that is disposed below the upper target 230 and can move up and down.

The surfaces of the upper indicator 230 and the lower indicator 240 are each engraved with graduations so that a mechanical operator can read them with a level. The upper bar 230 and the lower bar 240 can be adjusted in length by sliding and expanding. In the illustrated embodiment, they are expressed as two stages, but may be configured as a multi-stage system if necessary.

The moving guide unit 540 is provided in the moving guide groove 530 of the semicircular body 520 and can guide the measuring support ball 210 of the measuring unit 200 to move smoothly.

In this embodiment, the movement guide unit 540 may be provided on the left and right sides of the target support ball 210, respectively.

The movement guide unit 540 includes a ball support body 541 provided in the movement guide groove 530 in contact with the target support ball 210, and a groove support body 542 provided at the edge of the movement guide groove 530. , a central support portion 550 provided in the moving guide groove 530 to be disposed between the ball support body 541 and the groove support body 542, one side of which is coupled to the ball support body 541 and the other side of the central support portion. It includes a first moving spring 543 coupled to 550, one side of which is coupled to the groove support body 542, and a second moving spring 544 whose other side is coupled to the central support portion 550.

In this embodiment, (b) in the drawing shows that the target support ball 210 is moved to the left, and in this state, the first moving spring 543 disposed on the left is contracted, and the first moving spring disposed on the right ( 543) can be expanded.

The central support portion 550 includes a central support ball 551 disposed at the mid-height of the moving guide groove 530, and a plurality of centers whose one end is connected to the central support ball 551 to support the central support ball 551. It includes a connection bridge 552 and a plurality of center guide balls 553 provided at the other end of the plurality of center connection legs 552 and supported on the inner wall of the moving guide groove 530.

The central support portion 550 is disposed at an intermediate position between the ball support body 541 and the groove support body 542 to prevent sagging of the first moving spring 543 and the second moving spring 544, thereby preventing the measuring unit 200 from sagging. ) can be moved smoothly.

In addition, four of the plurality of central connecting legs 552 may be provided, and a central guide ball 553 is provided at the end of each central connecting leg 552, so that the central support portion 550 can also be moved smoothly. . In this embodiment, the center guide ball 553 may be provided in a size 1/6 to 1/5 of the diameter of the center support ball 551.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is commonly known 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: moving part 110: support plate 111: horizontal rotating part
112: Control unit 120: Handle 121: Switch
130: Hinge 140: Lifting bracket 141: Lifting groove
142: Elevating cylinder 150: Wheel 200: Marking unit
210: scale support ball 220: scale support 230: upper scale
240: Lower indicator 300: Removable fastener 310: Upper removable case
311: First detachment stopper 312: Second detachment stopper 313: First compression part
314: Second compression portion 320: Lower detachable case 321: First elastic head
322: Second elastic head 400: Absorption connection unit 401: Horizontal connection bar
410: Fastening connector 420: Spring support 430: Elastic ring
440: Connecting rod 450: Connector ball 460: Support rod
461: Elastic wheel 470: Shock absorbing part 480: Absorbing connection case
490: Elastic body 491: Wheel stopper
500: Semicircular body part 510: Semicircular connection bar 520: Semicircular body
530: Moving guide groove 540: Moving guide part 541: Ball support body
542: Home support body 543: First moving spring 544: Second moving spring
550: Central branch 551: Central support ball 552: Central connection bridge
553: Center guide ball 600: First vertical support 610: Second vertical support
620: Horizontal support

Claims (1)

A moving unit equipped with a plurality of wheels and capable of moving forward, backward, left and right; A first vertical supporter and a second vertical supporter installed upright on the upper part of the moving part; An absorption connection unit connecting the first vertical support and the second vertical support and cushioning the shock transmitted to the first vertical support and the second vertical support; A horizontal support horizontally coupled to the top of the first vertical support and the second vertical support; A detachable fastening part mounted on the lower part of the horizontal support; A semicircular body portion detachably coupled to the lower part of the detachable fastening portion; And a target portion movably coupled to the lower part of the semicircular body portion; Including,
The moving part,
It includes a support plate and a handle coupled to one side of the support plate, and a lifting bracket with a lifting groove for the wheel to enter is coupled to the lower part of the support plate, and the wheel is coupled to the lifting bracket via a lifting cylinder to be lifted up and down. The lifting cylinder is electrically connected to the control unit built into the support plate and is driven by the operation of a switch coupled to the handle. The bottom of the handle is coupled to one side of the support plate through a hinge and can be rotated back and forth.
The absorption connection unit is,
a horizontal connecting bar disposed between the first and second vertical supports; A pair of absorption connection cases respectively coupled to both sides of the horizontal connecting band; A fastening connector disposed inside the absorption connection case, having a hole through which the first vertical support or the second vertical support passes, and having a groove through which the horizontal connecting member is detachably coupled; a spring supporter disposed between the absorption connection case and the opposite side of the fastening connector to which the horizontal connection member is detachably coupled; a first vertical support or a second vertical support that enters the inside of the absorption connection case, and four elastic rings respectively inserted into one area of the horizontal connection and spring supports; Connector balls each coupled to the four elastic rings 430 and connecting rods; A shock absorbing portion coupled to the connector ball and the support rod and formed on each corner of the inner surface of the absorbing connection case; Including,
The detachable fastening part,
An upper detachable case that is coupled to the lower part of the horizontal support, has a receiving space therein, and has a U-shaped cross-section; A lower detachable case that is inserted and fastened into the receiving space of the upper detachable case and has an inverted U-shaped cross section; A first compression portion and a second compression portion are formed to face each other on the upper and lower surfaces of the upper detachable case based on the accommodation space and have a semicircular cross section; It includes a first elastic head and a second elastic head formed to be spaced apart in the upper region of the lower detachable case,
The semicircular body part,
A semicircular connecting band coupled to the lower part of the detachable fastening portion; A semicircular body coupled to the lower end of the semicircular connection band and installed so that the target portion moves in a semicircular path; A moving guide groove formed in the lower part of the semicircular body; and a pair of movement guide parts provided inside the movement guide groove to guide the movement of the target unit. Including,
The measuring unit,
A target support ball provided on the semicircular body to be moved in a semicircular direction; A target support support provided on the target support ball and moved together with the target support ball; An upper index coupled to the end of the index support; and a lower indicator disposed below the upper indicator and capable of moving up and down. Includes,
The moving guide part,
A ball support body provided in the moving guide groove in contact with the target support ball; A groove support body provided at the edge of the moving guide groove; A central support portion provided in the moving guide groove to be disposed between the ball support body and the groove support body; A first moving spring, one side of which is coupled to the ball support body and the other side of which is coupled to the central support portion; and a second moving spring, one side of which is coupled to the groove support body and the other side of which is coupled to the central support portion; Including,
The central support part,
A central support ball placed at the mid-height of the moving guide groove; A plurality of central connection legs, one end of which is connected to the central support ball and supporting the central support ball; and a plurality of center guide balls provided at the other end of the plurality of center connection legs and supported on the inner wall of the moving guide groove. A geodetic surveying device that maintains the target for geodetic surveying vertically and protects it from impact, comprising: