JPH07111410A - Elevator for antenna and antenna installing method - Google Patents

Abstract

PURPOSE:To install an antenna for GPS or the like efficiently at an optional height with a compact support structure with a light weight and excellent carrying performance. CONSTITUTION:A case 1 is formed to be set through vertically with a throughhole provided to its upper plate and its bottom plate and a couple of rubber rollers are arranged in the inside of the case 1 at positions symmetrical in the forward and backward directions with a center axis of the throughhole inbetween. An elevator is formed so that a support 71 is elevated/descended in cooperation with other rubber roller via a gear by driving one rubber roller manually or with motor-drive and extension pipes 81-85 connected to the support 71 are sequentially lifted up. Then a levelling base is fitted to a tripod and alignment and levelling are implemented, the levelling base is removed and the elevator is set, the support 71 is inserted and the extension pipes 81-85 are connected to the lower end and an antenna 61 is lifted up to a required height. Then stay ropes 92, 94 are stretched and fixed to the aligned position.

Description

Detailed Description of the Invention

[0001]

The present invention relates to, for example, GPS (Global
The present invention relates to an apparatus and method for accurately installing an antenna for performing reference point survey and topographic survey using Positioning Sistem) at a height above the survey point in a forest zone, etc., at a height where satellite radio waves can be received.

[0002]

2. Description of the Related Art A so-called TS (total station) is a ground-based survey system for performing reference point surveys and topographic surveys.
The system is in general use. In the TS system,
Relative three-dimensional survey is performed based on the vertical line based on the direction of gravity at the observation point, the direction angle (horizontal angle) on the horizontal plane orthogonal to it, the altitude angle, and the distance. At that time, it is necessary to have visibility between the measuring points, which is easily affected by the weather and the like.

Apart from that, recently, a surveying system using GPS (GPS surveying) has been put into practical use. This survey system is a global (3D) coordinate positioning system that uses radio waves from artificial satellites developed and operated by the United States Department of Defense (GPS).
ositioning Sistem) is used to calculate the distance between four or more satellites and the receiver and solve the three-dimensional figure to calculate the coordinate difference between the receiving antenna centers. At that time, the position of the satellite and the component of the baseline vector are calculated using three-dimensional Cartesian coordinates with the center of the earth as the origin. In this system, the antenna must be installed at a position where it can receive radio waves from at least four satellites at the same time, but surveying is possible even when the line of sight between measurements is obstructed.
Recently, as the number of satellites has increased, time constraints have decreased and it has become possible to select satellites that are close to the ideal arrangement. Also, the price of the receiver has dropped to the point where it can be compared with the TS system, and operability is also improved. As a result of improvement, GPS surveying is increasingly used not only for preliminary surveys but also for full-scale surveying as a surveying system having a complementary relationship with the TS system.

By the way, in GPS surveying, it is necessary to install an antenna so that the radio waves transmitted from artificial satellites can be accurately received at a fixed position above the measuring point. In the forest areas in mountainous areas, the antenna is sometimes used. It must be as high as 10 meters. However, since the support for fixing the antenna must be portable, the length is naturally limited. Therefore, conventionally, a pole pole that can be expanded and contracted several steps by air pressure was expanded and contracted at a measuring point to hold an arbitrary height, or after connecting a plurality of divided pole poles on site. The one that stands upright is used.

[0005]

As described above, pneumatic telescopic poles and articulated poles are known as antenna props when GPS surveying is carried out in a forest zone such as a mountainous area. However, there is a problem in that the installation work requires a large number of people, takes time, and is heavy and inconvenient to transport. Also, in the case of a conventional articulated pole that stands vertically after connecting the poles, it requires a large space for the work to be joined and stands up, and also requires a large number of people.
There is a problem that it takes time.

The present invention is intended to solve such a problem, and an object thereof is to make it possible to efficiently install an antenna at an arbitrary height by using a pillar structure which is lightweight, compact and easy to carry. To do.

Another object of the present invention is to improve the work efficiency of GPS surveying using radio waves from artificial satellites.

[0008]

SUMMARY OF THE INVENTION The present invention is an antenna in which a required number of extension pipes are connected to the lower end of a column to which the antenna is fixed, or the extension pipe can be lifted while removing the extension pipes to be fixed at an arbitrary height. The above object is achieved by an elevator for elevators, and the elevator for antennas comprises:
A case having a through hole for vertically penetrating the support column and the extension pipe, and a roller pair for vertically moving the support column and the extension pipe by frictional force when the support column and the extension pipe are clamped in the case and driven to rotate. It is characterized by including.

In the antenna elevator according to the present invention, in the roller pair, one roller is drivingly connected to the manual handle through the gearbox, or drivingly connected to a driving motor.
The other roller is transmission-coupled to the one roller via a drive-side gear coaxial with the one roller and a driven-side gear coaxial with the other roller, and the other roller is biased toward the one roller by a spring. It can be done. Further, below the roller pair, it is preferable to provide a supporting roller pair for guiding and supporting the support column and the extension pipe.

Further, the antenna elevator according to the present invention may be one that raises and lowers a surveying antenna that receives radio waves transmitted from artificial satellites, in which case the casing is a tripod leveling platform for surveying. The mounting part shall be provided with a connecting part that can be mounted instead of the leveling table.

Further, the present invention relates to an antenna installation method, and as an antenna elevator, it has a column to which a surveying antenna is fixed and a through hole for vertically penetrating an extension pipe connected to the column, and a surveying instrument. A case having a connecting part that can be attached to the leveling table mounting part of the tripod in place of the leveling table, and a column and an extension pipe are sandwiched in the casing and driven to rotate, whereby the column and the extension pipe are frictionally driven. Using a roller pair that can move up and down, attach the leveling table to the tripod, perform centering and leveling according to the existing measuring points, then remove the leveling table and remove the leveling table. Attach the housing of the elevator to the leveling table mounting part of the rear tripod, perform re-leveling with the detachable level attached to the housing, and then insert the column with the antenna fixed into the through hole of the housing. Tenuki It is clamped by the roller pair in the state, then the required number of extension pipes are sequentially connected to the lower end of the column, the roller pair is driven to rotate and the column and extension pipes are lifted, and when the antenna reaches the required height, stop At the same time, a branch line rope is stretched from at least three sides to fix the center line of the antenna while checking the centering of the antenna.

The present invention also provides another antenna installation method using an antenna elevator similar to the above method, in which a pile driving measurement point is provided at a position eccentric from the existing measurement point by a predetermined distance. After mounting the leveling table on the tripod and performing centering and leveling according to the existing measurement points, remove the leveling table, and attach the elevator housing to the leveling table attachment part of the tripod after removing the leveling table. Re-leveling is performed by using the removable level attached to the housing, and then the antenna is fixed, and the prop is fixed by hanging the water thread from the antenna fixing part and fixing the hanging ball to the lower end of the water thread. Insert it into the through hole and sandwich it between the roller pairs in a penetrating state.Next, while sequentially connecting a required number of extension pipes to the lower ends of the support columns, rotate the roller pairs to lift these support columns and extension pipes, and the antenna height With stops was reached, characterized in that to fix the antenna vertical ball Put the branch rope at a position obtained by centripetal the piling measuring points from at least three sides.

[0013]

According to the present invention, in the antenna elevator, the housing is attached to a mounting portion such as a tripod, and the support column to which the antenna is fixed is inserted into the through hole of the housing, and is sandwiched by the roller pair in the housing in a penetrating state. It is set to the state where it was set. Then, the extension pipe is connected to the lower end of the set column, and the column and the extension pipe are lifted by driving the roller pair manually or electrically. Then, if necessary, an extension pipe is further connected and similarly lifted. Then, the operation is stopped at an arbitrary height, and the antenna is fixed at that height. Also, the antenna is lowered by the reverse operation.

Here, in the roller pair, when one roller is rotationally driven, the other roller is also rotationally driven through the gears on the driving side and the driven side, and the other roller is biased by the spring, As a result, the support column and the extension pipe are clamped and moved up and down by frictional force. A pair of supporting rollers provided below guides and supports the support column and the extension pipe in a vertical state.

Further, according to the antenna installation method of the present invention, the antenna elevator moves up and down the surveying antenna that receives the radio waves from the artificial satellites, and the housing is aligned with the leveling table mounting portion of the surveying tripod. It has a connecting part that can be attached instead of the standard table.In this case, a leveling table is attached to the tripod to perform centering and leveling according to the existing measuring points, and then leveling. The stand is removed, the leveling cabinet mounting part of the tripod after the leveling platform is removed, the elevator housing is mounted, and re-leveling is performed by the removable level attached to the housing, and then the antenna The support column that has been fixed is inserted into the through hole of the housing and sandwiched between the roller pairs in a penetrating state, then the extension pipe is connected to the lower end of the support column, and the roller pair is driven to rotate manually or electrically to support the support column and the extension. Pipe lifts It is. Then, if necessary, an extension pipe was connected and lifted up, and the antenna was stopped when it reached the required height, and in that state, branch lines were stretched from at least three sides, and the center position of the antenna was centered. Fixed in the state.

Further, according to this another antenna installation method of the present invention, the pile driving measuring point is provided at a position eccentric from the existing measuring point by a predetermined distance. Then, after the leveling table is attached to the tripod and centering and leveling according to the existing measurement points are performed, the leveling table is removed and the leveling table mounting part of the tripod after the leveling table is removed The elevator housing is attached and re-leveling is done by the removable spirit level attached to the housing, then
While the antenna is fixed, a water thread is hung from the antenna fixing portion, and a support pole having a hanging ball fixed to the lower end of the water thread is inserted into the through hole of the housing and is clamped by the roller pair in a penetrating state.
Then, the extension pipe is connected to the lower end of the column, and the roller pair is manually or electrically driven to rotate to lift the column and the extension pipe. Then, if necessary, an extension pipe is connected and lifted up, and when the antenna reaches the required height, it is stopped.In that state, branch lines are stretched from at least three sides, and the hanging ball is used as the pile driving measurement point. The antenna is fixed at the centered position.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a view of an elevator for an antenna according to an embodiment of the present invention seen from above with an upper plate removed, and FIG. 2 is a side view of the elevator with a front side plate removed. FIG. 3 and FIG. 3 are views of the elevator viewed from the front with the side plate on the front side (left side in FIG. 1) removed. Further, FIG. 4 is an explanatory view of a state in which the elevator is attached to a tripod.

1 to 3, 1A is a top plate, 1B is a bottom plate, 1C, 1D, 1E and 1F are front side plates, rear side plates, left side plates and right side plates when viewed from the front, Both are made of aluminum, and these form the casing 1 of the elevator body. This housing 1 has an upper plate 1A.
An upper punched hole 2 having a diameter of, for example, 35 mm is provided approximately at the center of the bottom plate 1B.
A lower punched hole 3 of 0 mm is provided so that it can penetrate vertically. Further, inside the housing 1, the drive-side and driven-side roller shafts 4 and 5 are arranged symmetrically about the central axis of the upper punched hole 2 and the lower punched hole 3 in the longitudinal direction. The shaft 4 is rotatably supported by the opposing left and right side plates 1E and 1F, and the driven roller shaft 5 engages with long holes 7A and 7B provided in the inner wall portions of the left and right side plates 1E and 1F to move back and forth. The roller shaft 4 on the drive side is rotatably supported by the movable both-end shoe portions 6A, 6B and receives the urging force of the springs 8A, 8B mounted between the both ends and the back plate 1D.
It is configured to be constantly pressed toward.

Both the driving side and driven side roller shafts 4,
5, a pair of rubber rollers 9 and 10 having an aluminum cored bar are arranged at positions sandwiching the central axes of the upper and lower punched holes 2 and 3.
A pair of gears 11 and 12 on the driving side and the driven side, which mesh with each other, are coupled to one ends of the rubber rollers 9 and 10. These pair of rubber rollers 9 and 10 hold the antenna support column and the extension pipe (shown by the one-dot chain line A) which penetrate through the upper and lower punched holes 2 and 3 as will be described later and are driven up and down. The peripheral surface is formed in an arcuate shape in cross section according to the outer diameters of the support column and the extension pipe.

A worm wheel 13 is fixed to the other end of the rubber roller 9 on the drive-side roller shaft 4. Then, the worm screw 14 that meshes with the worm wheel 13
The worm shaft 1 that is placed below and supports it
Reference numeral 5 penetrates through the side plate 1C on the front side and is supported by a cantilever, and its tip is connected to a manual handle 31 shown in FIG. 4 via a gear type gearbox 16.

Further, the pair of rubber rollers 9 for driving,
A pair of supporting rubber rollers 17 and 18 is disposed below the unit 10 with the center axis of the support pipe and the extension pipe penetrating the upper and lower holes 2 and 3 being sandwiched. These supporting rubber rollers 17 and 18 are rotatably mounted on roller shafts 19 and 20, and both ends of the roller shafts 19 and 20 are fixed to brackets 21 and 22 on the bottom plate 1B. These supporting rubber rollers 17 and 18 are smaller in diameter than the driving rubber rollers 9 and 10 and have the same outer surface shape, and sandwich and support the inserted support columns and extension pipes to guide and support them.

On the lower surface of the bottom plate 1B, as shown in FIG. 4, there is provided a connecting portion 23 for attaching the housing 1 to the leveling table mounting portion of the surveying tripod 41. And the upper plate 1A
As shown in FIG. 4, a screw connecting portion 24 for connecting the guide 51 is provided on the upper surface of the.

The antenna elevator of this embodiment is a GPS
This is for installing a surveying antenna, and when used, as shown in FIG. 4, the housing 1 is attached to the leveling table mounting portion of the surveying tripod 41, and the guide 51 is attached to the upper surface of the housing 1.
To connect. Then, using this, the antenna is installed by the following method.

Installation Example 1. A case where the existing measurement points are set will be described with reference to FIG.

After attaching the leveling table to the tripod and performing centering and leveling according to the existing measuring points, the leveling table is removed,
The housing 1 of the elevator is attached to the leveling table attachment portion of the tripod.

Next, after re-leveling is performed by the removable level attached to the casing 1, the support column 71 to which the antenna 61 is fixed is inserted into the casing 1 from above, and the manual handle 31 is rotated to a predetermined position. Lower to position.

The handle is stopped to hold the column 71 in a penetrating state, and the first extension pipe 81 is connected to the lower end thereof. Then, the handle 31 is turned to lift the column 71 and the extension pipe 81, and the second extension pipe 82 (not shown) is connected to the lower end of the first extension pipe 81. Then, the handle 31 is turned again and lifted up, and the required number of extension pipes are connected in the same manner, for example, the third and fourth pipes.
The first extension pipes 83 and 84 are connected, and further the fifth extension pipe 85 is connected, and then the antenna 61 is fixed at a position where it has a predetermined height. Then, the lower support column 72 with a stone protrusion is connected to the lower end of the extension pipe 85 which is finally connected, and is installed on the existing measurement point 100. The length of the support column 71 and each of the extension pipes 81 to 85 is, for example, 1.5 m,
The length of the lower support column 72 is, for example, 1 m.

Next, for example, a third extension pipe 83
The three branch line rows 92 from the fixed brew 91 attached in advance are stretched and fixed while confirming the centripetal at the center position of the antenna 61. Further, three branch lines 94 from a fixing brew 93 previously attached to the column 71 are stretched, and the centripetal position of the center position of the antenna 61 is confirmed and fixed in the same manner.

Installation example 2. The case of providing measurement points eccentrically will be described with reference to FIG.

A pile driving measuring point 110 is provided at a position eccentric from the existing measuring point by a predetermined distance. Then, after the leveling table is attached to the tripod and centering and leveling are performed according to the existing measurement points, the leveling table is removed, and the elevator housing 1 is attached to the leveling table mounting portion of the tripod.
Attach.

Next, after re-leveling is performed by the detachable level attached to the casing 1, the column 71 to which the antenna 61 is fixed is inserted into the casing 1 from above, and the manual handle 31 is turned to a predetermined position. Lower to position.

The handle is stopped to hold the column 71 in a penetrating state, and the first extension pipe 81 is connected to the lower end thereof. Then, the handle 31 is turned to lift the pillar 71 and the extension pipe 81, and the second extension pipe 82 is connected to the lower end of the first extension pipe 81. Then, the handle 31 is turned again and lifted up, and thereafter, a required number of extension pipes are similarly connected, and for example, the fifth extension pipe 85 is also connected, and then the antenna 61 is fixed at a position where it has a predetermined height.

Next, for example, a third extension pipe 83
The three branch line rows 92 from the fixed brew 91 previously attached to the above are attached and fixed. At this time, a water thread 96 to which the hanging ball 95 is fixed is attached to the tip of the column 71,
Is fixed at the position centered on the stakeout measuring point 110. Also,
Further, three branch lines 94 from a fixed brew 93 attached in advance to the support column 71 are stretched, and similarly, the ball center to the stake measurement point 110 is confirmed and fixed.

Although the antenna installation method according to this embodiment is as described above, the number of extension pipes to be connected and the number and position of fixed brews can be set arbitrarily.

The elevator of the present invention can be applied to the installation of various antennas other than GPS surveying.

The elevator may be driven by a drive motor.

[0038]

According to the present invention, the antenna can be installed at a desired height within a short time by a small number of people, and moreover,
A device therefor can be made light and compact and excellent in portability. Then, in particular, the work efficiency of GPS surveying can be improved and convenience can be improved.

[Brief description of drawings]

FIG. 1 is a diagram of an elevator for an antenna according to an embodiment of the present invention seen from above with an upper plate omitted.

FIG. 2 is a side view of an elevator for an antenna according to an embodiment of the present invention with side plates omitted.

FIG. 3 is a front view of an elevator for an antenna according to an embodiment of the present invention with the side plate omitted.

FIG. 4 is a diagram showing a state in which the antenna elevator according to the embodiment of the present invention is mounted on a tripod.

FIG. 5 is a diagram showing an antenna installation example 1 according to an embodiment of the present invention.

FIG. 6 is a diagram showing an antenna installation example 2 according to an embodiment of the present invention.

[Explanation of symbols]

 1 Case 2 Upper Drawing Hole 3 Lower Drawing Hole 8A, 8B Spring 9 Rubber Roller (Drive Side) 10 Rubber Roller (Drive Side) 11 Gear (Drive Side) 12 Gear (Drive Side) 13 Worm Wheel 14 Worm Screw 16 Gearbox 17 , 18 Rubber roller (for support) 23 Connection part 31 Manual handle 41 Tripod 61 Antenna 71 Strut 81, 82, 83, 84, 85 Extension pipe 92, 94 Branch line 100 Existing measurement point 110 Pile driving measurement point

Claims (7)

[Claims] 1. An elevator for an antenna, wherein a required number of extension pipes are connected to a lower end of a column to which an antenna is fixed, or the antenna is moved up and down while the extension pipe is removed to be fixed at an arbitrary height. And a case having a through hole for vertically penetrating the extension pipe, and vertically moving the support column and the extension pipe by frictional force by sandwiching the support column and the extension pipe in the case and being driven to rotate. An elevator for an antenna, comprising a pair of rollers. 2. The roller pair, wherein one roller is drivingly connected to a manual handle via a gearbox, the other roller is a drive gear coaxial with the one roller and a driven gear coaxial with the other roller. 2. The roller is power-coupled to the one roller via a side gear, and the other roller is biased by a spring toward the one roller.
Elevator for the described antenna. 3. The roller pair has one roller drivingly connected to a drive motor, and the other roller via a drive-side gear coaxial with the one roller and a driven-side gear coaxial with the other roller. The elevator for an antenna according to claim 1, wherein the elevator is operatively connected to the one roller and the other roller is biased toward the one roller by a spring. 4. The elevator for an antenna according to claim 2, further comprising a supporting roller pair that guides and supports the support column and the extension pipe below the roller pair. 5. The antenna is a surveying antenna that receives radio waves transmitted from artificial satellites, and the housing can be attached to the leveling table mounting portion of a surveying tripod by replacing it with a leveling table. The elevator for an antenna according to claim 1, wherein the elevator is provided with a connecting portion. 6. A surveying antenna is fixed, and a through-hole for vertically penetrating an extension pipe connected to the column is provided, and the surveying tripod can be mounted on the leveling table mounting portion in place of the leveling table. For an antenna including a housing having a connecting portion, and a roller pair that allows the pillar and the extension pipe to be moved up and down by a frictional force when the pillar and the extension pipe are sandwiched in the housing and driven to rotate. An antenna installation method using an elevator, wherein a leveling stand is attached to the tripod, centering and leveling are performed according to existing measurement points, and then the leveling stand is removed, and the tripod after the leveling stand is removed Of the elevator is attached to the leveling table attachment part of the above, and re-leveling is performed by the removable level attached to the casing, and then the support column with the antenna fixed is inserted into the through hole of the casing. Then, the roller pair is sandwiched in a penetrating state, and then the roller pair is rotatably driven while sequentially connecting a required number of extension pipes to the lower end of the column, and the column and the extension pipe are lifted. An antenna installation method characterized by stopping at a height and at the same time, fixing branch lines by stretching branch lines from at least three sides while checking the centripetal center of the antenna. 7. A surveying antenna is fixed, and a through-hole for vertically penetrating an extension pipe connected to the column is provided, and the surveying tripod can be attached to the leveling table mounting portion in place of the leveling table. For an antenna including a housing having a connecting portion, and a roller pair that allows the pillar and the extension pipe to be moved up and down by a frictional force when the pillar and the extension pipe are sandwiched in the housing and driven to rotate. An antenna installation method using an elevator, in which a stakeout measuring point is provided at a position eccentric from the existing measuring point, and a leveling table is attached to the tripod to perform centering and leveling according to the existing measuring point. After that, remove the leveling table, attach the elevator housing to the leveling table mounting part of the tripod after removing the leveling table, and perform re-leveling with the removable level attached to the housing. After that, the antenna is fixed, and a water thread is hung from the antenna fixing portion, and a support pole having a hanging ball fixed to the lower end of the water thread is inserted into the through hole of the housing and clamped by the roller pair in a penetrating state, then , While sequentially connecting a required number of extension pipes to the lower ends of the columns, the roller pairs are rotationally driven to lift the columns and the extension pipes, and stop when the antenna reaches a required height, and from at least three sides. An antenna installation method characterized in that a branch line rope is stretched to fix the antenna at a position where the hanging ball is centered on the stakeout point.