KR101349225B1 - Tripod fixing appratus for leveling - Google Patents

Abstract

The purpose of the present invention is to provide an apparatus for fixing a tripod for precise leveling, in installing a surveying equipment used for various surveyings using a tripod, capable of performing stable precise leveling work by maintaining a firm fixed state even when a ground for fixing an in-bar staff is not rigid, capable of accurately maintaining a vertical state by finely tuning the slope and capable of obtaining precise and accurate data when precise leveling by minimally decreasing a vibration delivered to the in-bar staff even when the vibration is generated to the ground. The apparatus for fixing a tripod for precise leveling of the present invention includes: a fixing cylinder body for fixing an end of legs of the tripod; a central body connected to the fixing cylinder body; a fixing body for surrounding the central body to be located in the center; engagement screw and nut for engaging the central body with the fixing body; a plurality of elastic springs elastically installed in between the central body and fixing body; a conical protrusion formed on the bottom surface of the fixing body' a fixing tool respectively installed in both end units of the fixing body; a fixing rod for inserting into the ground surface through the fixing tool; and an operation rod and a rotary member for moving a fixing piece installed in both sides of a lower part of the fixing rod in between insertion location within the fixing rod and fixing location protruding outward from the fixing rod.

Description

Tripod fastening device for precision leveling {TRIPOD FIXING APPRATUS FOR LEVELING}

The present invention relates to a tripod fixing device for precision leveling, and more particularly, even when the location of the leveling instrument for precision leveling is inclined or not solid soil, the instrument can be maintained in a stable and stable position without shaking. The present invention relates to a tripod fixing device for precise level surveying, which is capable of obtaining accurate and accurate survey data by minimizing errors in precision level surveying by absorbing even when small vibrations occur in the ground by driving.

In general, for various civil and architectural designs, surveying is performed first, and various instruments such as levels, theodolites, transistors, and total stations are used for precise level surveying. Installed depending on.

Tripods have some stability because the three legs are placed on the ground in three directions, but they are inverted due to strong winds and inadvertent handling, and cables, hoses, contact during dismantling, and contact with vehicles such as forklifts. There is a problem that expensive instruments are frequently broken.

As a conventional technique for solving the above problems, "tripod for surveying instruments" of Patent Registration No. 10-0584948 (May 23, 2006) is known.

The prior art is the connector is located in the center of the tripod leg, the support is fixed to the lower side of the inner side of the tripod leg, the connecting rod is installed on both ends of the connector and the support, and the fixed cap to the connector And, it is inserted into the inside of the bottom of the fixing cap is fixed with a fixing bolt and consists of a spike formed spiral hole in the center of the upper surface.

Therefore, as the connecting rod is naturally folded or unfolded from the inside of the tripod leg, the opening of the tripod leg can be effectively limited, and it does not cause any trouble in the handling of the tripod. Spikes can be easily removed and detached to prevent the fall of the instrument so that the center of the instrument can be easily checked.In particular, it can be easily installed without modifying the existing tripod to prevent damage to the instrument due to the fall of the tripod leg. It is.

However, in the prior art as described above, since the legs arranged in the three directions of the tripod are placed on the ground as it is, the fixing of the tripod is not firm to the ground, especially when the ground is not hard, strong wind or ground vibration. The instrument is easily shaken by external forces such as This causes an error in precision level surveying, and thus there is a problem in that accurate and accurate survey data cannot be obtained.

In addition, the instrument is often installed adjacent to the road, and every time the vehicle runs the road, fine vibrations are induced in the ground, and this vibration is transmitted to the instrument as it is through the tripod, so when the precision level survey around the road There is a disadvantage in that precision and accuracy are degraded.

Republic of Korea Patent Registration No. 10-0584948 (2006.05.23.) "Tripod for Surveyor"

The present invention is to solve the above-mentioned problems, the object is to install a surveyor used for various surveys on the ground using a tripod, even when the ground of the fixed place is not firm to maintain a stable fixed state It is possible to perform precision leveling work, and to provide accurate leveling tripod fixing device that can obtain accurate and accurate data during precision leveling by minimizing the transmission of vibration to the instrument even when vibration occurs in the ground. have.

In order to achieve the above object, the present invention, in the tripod fixing device for precision level measurement for installing the instrument, the fixing cylinder is inserted into the end of the tripod leg detachably fixed by a fixing screw; A central body installed in a vertical direction and having an upper end rotatably connected to one side of the fixed cylinder and a horizontal axis; A fixed body surrounding the central body to be positioned at the center; Two coupling screws and nuts for penetrating the central body and the fixed body in a horizontal direction and engaging in front, rear, left and right directions; A plurality of elastic springs elastically installed between the central body and the fixed body by being inserted into an outer circumference of a coupling screw located between the central body and the fixed body; A plurality of conical protrusions protruding from the bottom surface of the fixed body; It is installed at both ends of the fixed body, respectively, freely connected to the fixed body around the horizontal axis and the hollow connection cylinder, the insertion tube is inserted into the connection cylinder fixed by a tightening screw, and the insertion tube end Fixing mechanism consisting of a cylindrical support tube fixed to the; A fixed pillar having a pointed end and penetrating the support tube of the fixing mechanism to be driven into the ground; A pair of fixings are rotatably connected around the horizontal axis on both sides of the lower end of the fixing column so as to be movable between an insertion position in the fixing pillar and a fixing position protruding out of the fixing pillar, and having a tooth-shaped portion formed on an outer surface thereof. side; It is installed in the vertical hole formed in the fixing column so as to be movable in the vertical direction, and the lower end is connected to the one end of the pair of fixing pieces so that the pair of fixing pieces between the insertion position and the fixing position Rotating rod; And a screw member that is screwed into a screw hole formed in a vertical direction at an upper end of the fixing column, and is held by an upper end of the operating rod, and includes a rotating member which moves the operating rod in an upward and downward direction by a rotation operation. It is characterized by a tripod holding device for precision leveling.

According to the tripod fixing device for precision level surveying of the present invention according to the above characteristic configuration, even if the ground of the tripod fixed ground for the installation of the instrument is not firm on the fixing mechanism and the fixing pillar of the fixed body for fixing the legs of the tripod By making a solid fixation, it is possible to perform the precision level measurement by preventing the shaking as much as possible. Also, the fixing piece provided in the fixing pillar protrudes from the fixing pillar while the fixing pillar is embedded in the ground to further secure the fixing state of the fixing pillar. At the same time, it is effective to prevent the fixing pillar from easily falling out.

In addition, since the present invention is provided with an elastic spring between the fixed body fixed to the ground and the center body fixed to the legs of the tripod, when vibration occurs in the ground, by reducing this to minimize the vibration transmitted to the measuring instrument through the legs In this way, it is an industrially useful invention to obtain more accurate and precise leveling data.

1 is a front view showing a state of use of the tripod fixing device for precision level measurement according to the present invention,
Figure 2 is a perspective view of a tripod fixing device for precision level measurement according to the present invention,
3 is a sectional view taken along the line AA in Fig. 2,
Fig. 4 is a sectional view taken along line BB of Fig. 2,
5 is an exploded perspective view showing a fixing column in the tripod fixing device for precision level measurement according to the present invention,
6a and 6b is a cross-sectional view showing a state of use of the fixing column in the tripod fixing device for precision level measurement according to the present invention,
7 is a cross-sectional view taken along line CC of FIG. 6A;
And
8A and 8B are cross-sectional views showing a state of use of the tripod fixing device for precision level measurement according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 4, the tripod fixing device for precision level measurement according to the present invention is fixed to the three legs (2) arranged in three directions of the tripod (1), the fixed cylinder (10) ), The central body 20, the fixing body 30, the fixing mechanism 35 and the fixing pillar (40).

First, the fixed cylinder 10 is formed in a tubular shape of the size that can be fitted to the end of the leg (2) and is detachably fixed to the leg (2) by the fixing screw (11).

The central body 20 is installed in the vertical direction and is located in the center of the fixed body 30, and the upper end thereof is rotatably connected about a horizontal axis by one side of the fixed cylinder 10 and the hinge pin 21. do.

The fixed body 30 has a square plate shape having a square hole open up and down at the center, and the central body 20 is located at the center in the square hole. At this time, the height of the central body 20 is formed higher than the thickness of the fixed body 30 so that the upper portion of the central body 20 protrudes from the upper surface of the fixed body 30.

The central body 20 and the fixed body 30 are coupled in the front and rear, left and right directions by two coupling screws 31a and 31b and nuts 32a and 32b. That is, the two coupling screws 31a and 31b penetrate horizontally in the front and rear and left and right directions of the central body 20 and the fixed body 30, and are coupled by fastening with nuts 32a and 32b, respectively, and FIGS. As shown in FIG. 4, the coupling screws 31a and 31b passing through the central body 20 and the fixed body 30 have different through heights so as not to interfere with each other, and through holes formed in the central body 20. (22a, 22b) is formed in a rectangle to allow the fixed body 30 to flow in the front and rear and left and right directions with respect to the central body (20).

The plurality of elastic springs 33 are elastically installed between the central body 20 and the fixed body 30. The plurality of elastic springs 33 are fitted to the outer circumference of the coupling screws 31a and 31b positioned between the central body 20 and the fixed body 30, respectively, and the coupling screws 31a and 31b and the nuts 32a and 32b. It is to be able to increase or decrease the elastic force of the elastic spring 33 by adjusting the tightening force. The plurality of elastic springs 33 installed as described above perform a function of minimizing the transmission of vibration from the fixed body 30 to the central body 20.

A plurality of conical protrusions 34 protrude from the bottom surface of the fixed body 30, and the fixed body 30 is fixed to both ends of the fixed body 30 based on the central body 20. Fixing mechanism 35 and the fixing pillar 40 for each is provided.

The fixing mechanism 35 consists of a connecting cylinder 35a, the insertion pipe 35b, and the support pipe 35c. The connecting cylinder 35a is formed in a hollow cylindrical shape, and one end of the fixed body 30 is freely connected about a horizontal axis by a hinge pin 35d. Insertion tube (35b) is inserted into the connecting cylinder (35a) is fixed by a tightening screw (35e), the support tube (35c) is formed in a hollow cylindrical shape is fixed to the exposed end of the insertion tube (35b). . Therefore, the distance between the fixed body 30 and the support tube 35c can be adjusted according to the length of inserting the insertion tube 35b into the connecting cylinder 35a.

The fixed column 40 is formed to have a pointed end and penetrates into the ground by penetrating the support tube 35c of the fixing device 35. The length of the fixing column 40 can be selected and used according to necessity. Make sure

In addition, the fixed column 40, as shown in Figures 5 to 7, a pair of fixing pieces that are freely rotated about the horizontal axis on both sides of the lower end of the fixing column 40 by the rotation support pin (41a) (41) is provided. The fixing piece 41 is installed in the fixing column 40, and is interposed between the insertion position in the fixing column 40 and the fixing position projecting out of the fixing column 40 by interlocking by the vertical movement of the operating rod 42. Is installed to be movable in, the outer surface is formed with a serrated portion (41b).

The operating rod 42 is installed in the vertical hole 40a formed in the fixing column 40 so as to be movable upward and downward in the vertical direction. The lower end of the actuating rod 42 is connected to one end of the pair of fixing pieces 41 so as to rotate the pair of fixing pieces 41 between the insertion position and the fixing position.

The connecting rod 41 and the pair of fixing pieces 41 form a rectangular connecting hole 41c at one side connecting portion 41e of the pair of fixing pieces 41 to form the connecting hole 41c. It is made by connecting through the connecting rod (41d) penetrating through the lower end of the operating rod (42).

Therefore, as shown in FIGS. 6A and 6B, the pair of fixing pieces 41 rotate forward and backward about the rotation support pin 41a by the vertical movement of the operating rod 42 to fix the pillar 40. It is possible to operate between the insertion position and the fixed position to be released from the.

In addition, a screw hole 40b formed in the vertical direction in communication with the vertical hole 40a is formed at the upper end of the fixing column 40, and the screw part 43a of the rotating member 43 is formed in the screw hole 40b. Is screwed, and the lower end of the rotating member 43 is held with the upper end of the operating rod 42, the operating rod 42 is movable up and down by the rotation operation of the rotating member 43. .

At this time, the locking structure of the rotating member 43 and the operating rod 42 forms a locking disc portion 43b at the lower end of the rotating member 43, and the locking disc portion 43b is fitted to the operating rod 42 and locked. It is preferable to form a holding groove portion 42a to be maintained, and to form an operation groove 43c on the upper surface of the rotating member 43 to facilitate the rotation operation.

Therefore, the operating rod 42 is moved up and down by the rotation operation of the rotating member 43, so that the pair of fixing pieces 41 can be operated between the insertion position and the fixed position.

Referring to the operation of the tripod fixing device for precision level measurement consisting of this configuration is as follows.

If the soil on the floor for installing the instrument is not hard, for example in sandy, muddy or tidal flats, the tripod 1 for fixing the instrument is prevented as much as possible, while also being firmly fixed. When installed in a place adjacent to the road to prevent the vibration caused by the road driving of the vehicle to be transmitted to the instrument through the tripod (1) as possible to obtain accurate survey data during the precision level survey.

That is, as shown in Figures 1 to 4, after inserting the fixing cylinder 10 to the end of the leg (2) of the tripod (1), it can be installed simply by fixing with the fixing screw (11), and also fixing screw It can be easily separated by unwinding (11).

Subsequently, when the fixed body 30 is placed on the ground and pressed downward, the bottom surface of the fixed body 30 is placed on the ground while the conical projection 34 of the fixed body 30 is inserted into the ground, so that the soil is mud. Even in the case of land or tidal flats, the fixed body 30 is prevented from sliding or flowing with respect to the ground, thereby preventing the shaking of the tripod 1 as much as possible.

When there is a concern that the fixed body 30 may flow even in such a support state, the fixed body 30 may be attached to the ground using the fixing mechanisms 35 provided on both sides of the fixed body 30 as shown in FIG. 8A. It can be fixed more firmly.

That is, the fixing mechanism 35, the connecting cylinder 35a is rotatably connected by the fixed body 30 and the hinge pin 35d, so that the connecting cylinder 35a rotates outward with respect to the fixed body 30. When the support tube (35c) formed at the end of the insertion tube (35b) inserted into the connecting cylinder (35a) is spaced apart from the fixed body (30), and then through the fixing column (40) through the support tube (35c) By placing the pointed end on the ground, a fixed pillar 40 can be driven deep into the ground with a blow tool such as a hammer. As a result, the fixed body 30 can be further prevented from sliding or flowing. In particular, even when the soil is sandy, the fixed body 30 can be firmly fixed.

At this time, by adjusting the insertion length of the insertion tube (35b) inserted into the connecting cylinder (35a) by loosening the tightening screw (35e), it is possible to adjust the position of the support tube (35c) with respect to the fixed body (30), By selecting a good position to drive the fixed column 40, and also if the fixed column 40 is provided with a plurality of different lengths, by selecting the length of the fixed column 40 according to the hardness of the soil by using The fixing body 30 can be fixed more effectively.

In addition, after fixing the fixed column 40 to the ground, as shown in Figures 6a and 6b, as shown in Figure 6a and 6b, the rotating member 43 provided on the fixing column 40 in the operating groove (43c) tools (not shown) (Not shown), the threaded portion 43a of the rotating member 43 is screw-fitted to the screw hole 40b of the fixing column 40, so that the rotating member 43 is lowered while rotating, thereby rotating. The operating rod 42 connected with the member 43 is also lowered.

When the operating rod 42 is lowered, the connecting portions 41e of both fixing pieces 41 connected by the connecting pins 41d are also lowered, so that both fixing pieces 41 rotate about the rotation support pin 41a. To move from the insertion position in the fixing column 40 to the fixing position projecting out of the fixing column 40, thereby fixing the toothed portion 41b of the fixing piece 41 as shown in FIGS. 6B and 8B. Closer contact with the ground in a direction perpendicular to the insertion direction of the pillar 40 to further strengthen the fixed state of the fixed column 40, and prevent the fixed column 40 from being easily pulled out of the ground. have.

When removing the fixing column 40, if the rotating member 43 is rotated in the reverse order of the above operation, the rotating member 43 is raised, thereby operating rod 42 and connected to the rotating member 43 and In addition, since the connecting portion 41e of the fixing piece 41 connected to the operating rod 42 also rises, both fixing pieces 41 are reversely rotated about the rotation support pin 41a to protrude out of the fixing pillar 40. Since it moves from the fixed position to the insertion position in the fixed column 40, it is easy to remove the fixed column 40 from the ground.

On the other hand, the present invention can minimize the vibration of the tripod (1) by relieving it when vibration or shock is generated from the outside in a state where the leg (2) of the tripod (1) is firmly fixed as described above.

For example, when the instrument is installed in a location adjacent to the road, the ground is shaken by a vehicle traveling on the road to cause vibration. At this time, since the elastic spring 33 is elastically installed between the fixed body 30 fixed to the ground and the central body 20 to which the leg 2 of the tripod 1 is fixed, the fixed body 30 from the central body ( 20) it is possible to alleviate the vibration transmitted, thereby minimizing the shaking of the tripod (1) it is possible to obtain accurate and accurate data during the precision level measurement.

In addition, since the elastic force is changed by tightening and loosening the coupling screws 31a and 31b and the nuts 32a and 32b, the elastic spring 33 has a magnitude of vibration that may be generated depending on the installation location of the tripod 1. In anticipation, the elastic force of the elastic spring 33 can be adjusted appropriately and conveniently used.

The embodiments described so far are merely illustrative of the preferred embodiments of the present invention, and the scope of the present invention is not limited to the described embodiments, and those skilled in the art within the technical spirit and claims of the present invention. It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the present invention.

1: tripod 2: legs
10: fixed cylinder 20: central body
30: fixed body 31a, 31b: coupling screw
32a, 32b: nut 33: elastic spring
34: conical projection 35: fixed mechanism
40: fixed column 41: fixed piece
42: operating rod 43: rotating member

Claims (1)

In the tripod fixing device for the precision level measurement for installing the instrument,
A fixing cylinder 10 inserted into an end of the leg 2 of the tripod 1 and detachably fixed to the fixing screw 11;
A central body 20 installed in a vertical direction so that an upper end thereof is rotatable about one side and a horizontal axis of the fixed cylinder 10;
A fixed body 30 surrounding the central body 20 to be positioned at the center;
Two coupling screws (31a, 31b) and nuts (32a, 32b) for penetrating the central body (20) and the fixed body (30) in a horizontal direction and engaging in front, rear, left, and right directions;
A plurality of elastic springs (33) elastically installed between the central body (20) and the fixed body (30) by being fitted to the outer circumference of the coupling screws (31a, 31b) located between the central body (20) and the fixed body (30);
A plurality of conical protrusions 34 protruding from the bottom surface of the fixed body 30;
It is installed at both ends of the fixed body 30, respectively, is freely connected to the fixed body 30 around the horizontal axis, the hollow connecting cylinder (35a) and inserted into the connecting cylinder (35a) and tightening screw A fixing mechanism (35) comprising an insertion tube (35b) fixed by a 35e and a cylindrical support tube (35c) fixed to an end of the insertion tube (35b);
A fixed column 40 having a sharp end and driving the support tube 35c of the fixing mechanism 35 into the ground;
Rotating freely around a horizontal axis on both sides of the lower end of the fixed column 40 is installed to be movable between the insertion position in the fixed column 40 and the fixed position protruding outside the fixed column 40, the outer surface A pair of fixing pieces 41 in which a serrated portion 41b is formed;
It is installed in the vertical hole (40a) formed in the fixing column 40 so as to be movable in the vertical direction, the lower end is connected to one end of the pair of fixing pieces 41 so as to interlock An actuating rod 42 for rotating the piece 41 between the insertion position and the fixed position; And
A screw portion 43a is formed on the upper end of the fixing column 40 to be screwed into the screw hole 40b formed in the vertical direction, and is held by the upper end of the operating rod 42 to rotate the operating rod. Tripod fixing device for precision level measurement, characterized in that it comprises a rotating member 43 for moving the 42 in the upward and downward directions.

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