JPH0590315U - Lightwave rangefinder reflector support - Google Patents

Abstract

(57) [Abstract] [Purpose] The optical distance meter reflector can be securely attached to the surveying column, the bubble tube can be easily attached, and the installation at the measurement point is extremely easy. Provided is a lightwave rangefinder reflector support. A pressing member that inserts and fixes a bubble tube 12 from below a bubble tube accommodating chamber 10 having a horizontal peripheral frame portion 11 that abuts on the outer periphery of the upper surface of the bubble tube 12, and makes surface contact with the side surface of the surveying support column 3. 19 and a fixing screw 21 for pressing the pressing member 19 constitute a fixing member for the surveying support column 3, and the lower end of the surveying support column 3 is formed in a conical shape with a sharp tip, and the apex of the cone shape. 27 is supported by a bridge-shaped pedestal 4 which is visible from the outside. [Effect] The bubble tube 12 can be easily attached to the support base 2, and the center of the surveying support column 3 is fixed so as to accurately pass through the intersection P between the virtual reflection surface L1 of the reflector 5 and the optical axis L2. , The vertex 27 and the measurement point 31 can be easily matched.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a vertical through-hole through which a surveying column penetrates, and a plane orthogonal to the vertical through-hole, where the intersection of the virtual reflection surface of the light-wave rangefinder reflector and the optical axis of the reflector is on the central axis of the reflector. The present invention relates to an optical wave range finder reflector support base having a bubble tube that is provided in a temporary manner and a fixing member that fixes the surveying column.

[0002]

[Prior Art]

 Conventionally, as a support base for supporting a reflector used for measuring the distance between two points by a modulated light wave, the utility model 59-34313 (hereinafter referred to as the prior art 1) and the utility model 59-34314. No. (hereinafter referred to as “prior art 2”). In the reflector support base of the conventional technique 1, in order to fix the surveying column penetrating the vertical through hole, a screw hole reaching the vertical through hole is formed on the side surface, and a bolt is screwed into the screw hole for surveying. The support was fixed by pressing the support from the side. Also, a bubble tube is embedded in the upper surface in order to see if the supported optical distance meter reflector is horizontal.However, since the bubble tube itself is embedded horizontally in the support base, another The bubble tube was installed and fixed horizontally in the container, and the container containing the bubble tube was attached and fixed so that it was horizontal with respect to the support base.

Further, the reflector support base of the prior art 2 is composed of an upright column portion that supports a measurement column, and a seat plate portion that has a cross scale having an intersection on the center line of the upright portion on the outer peripheral portion. Therefore, the cross scale was aligned with the straight line passing through the measurement points.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional technique 1, since the contact between the surveying support column and the bolt is pressed and fixed in a state close to the almost point or line contact, the support column and the vertical through hole are formed in the direction orthogonal to the pressing direction. Depending on the clearance between them, the center of the surveying prop may not pass the intersection of the reflector's virtual reflection surface and the optical axis accurately, and accurate distance measurement may not be possible. However, there was a drawback in that such a tendency became more and more prominent due to wear. In addition, there is a drawback that it takes time and effort to mount the bubble tube accurately when manufacturing. Furthermore, in Conventional Technique 2, the intersection of the measurement points is hidden by the support and cannot be seen directly. Therefore, it is necessary to draw a cross line that passes through the measurement point in advance, but the cross line should be aligned with the direction of the reflector. If this is not the case, you must either redraw the crosshairs or rotate the surveying column with the crosshairs aligned with the cross-shaped scale. However, there was a drawback that alignment with the measurement point was troublesome. The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to securely mount an optical distance meter reflector to a surveying column and to easily install a bubble tube. Another object of the present invention is to provide a lightwave rangefinder reflector support that can be installed at a measurement point very easily.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the present invention, an upper and lower through-holes through which a surveying column is pierced, the intersection of the virtual reflection surface of the optical distance meter reflector and the optical axis of the reflector being on its central axis, An optical wave range finder reflector support base having a bubble tube provided on a surface perpendicular to the vertical through-hole and a fixing member for fixing the surveying column, wherein the bubble tube A fixing member that is inserted and fixed from below the bubble tube housing chamber that has a horizontal peripheral frame portion that comes into contact with the outer periphery of the upper surface of the tube, and the fixing member that makes surface contact with the side surface of the surveying column and a fixing screw that presses the pressing member. It consists of and. In addition, the lower end of the surveying column fixed to the support base configured as described above is formed into a conical shape with a sharp tip, and the apex of the conical shape is formed by a bridge-shaped pedestal that can be visually recognized from the outside. It is characterized by having supported.

[0006]

[Function] Since the bubble tube is mounted on the support base by inserting and fixing from below into the bubble tube storage chamber having the horizontal peripheral frame portion that abuts on the outer periphery of the upper surface of the bubble tube, the bubble tube is purposely horizontally fixed to another container. Moreover, it is not necessary to horizontally mount the container again, and the bubble tube can be easily mounted on the support base. Also, since the surveying column is locked in the vertical through-hole by the pressing member that makes surface contact, the center of the surveying column is fixed in a state of passing exactly through the intersection of the virtual reflection surface of the reflector and the optical axis. . Furthermore, the lower end of the surveying column is formed in a conical shape with a sharp tip, and the apex of the cone is supported by a bridge-shaped pedestal that can be seen from the outside, so that the reflector is directed in a predetermined direction. In this state, the apex of the cone and the measuring point can be easily matched.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show the whole of the optical distance meter reflector 1 according to the embodiment, FIG. 1 is a sectional view, FIG. 2 is a perspective view, and FIG. 3 is an exploded perspective view. In the figure, a light wave range finder reflector 1 is mounted on a support base 2 for supporting a reflector 5, a surveying support column 3 penetrating through a vertical through hole 9 of the support platform 2, and a lower end of the surveying support column 3. And a pedestal 4 that supports the entire lightwave rangefinder reflector-1.

First, the structure of the support base 2 that supports the reflector 5 will be described. The support base 2 is configured by connecting an upper support base 6 on which the reflector 5 and the bubble tube 12 are provided, and a lower support base 7 on which a fixing member for fixing the surveying support column 3 is connected by screws 8 to each other. ing.

That is, in the front portion of the upper support base 6, upper and lower through holes 9 through which the surveying column 3 is vertically passed are formed, and in the rear portion thereof, a bubble tube 12 is provided from below. A bubble tube housing chamber 10 for housing is formed. The bubble tube accommodating chamber 10 has a circular peripheral opening at its upper surface, and the inner lower surface of the opening edge is a horizontal peripheral frame portion 11 formed horizontally. Therefore, when the bubble tube 12 is inserted from the lower side of the bubble tube accommodating chamber 10, the horizontally formed upper surface of the bubble tube 12 and the horizontal peripheral frame portion 11 are brought into close contact with each other, so that the level of the bubble tube 12 is maintained. Secured. A donut-shaped cushioning material 13 is interposed below the bubble tube 12, and when the upper support 6 and the lower support 7 are connected and fixed by screws 8, the lower surface of the cushioning material 13 is supported by the lower support. A closing convex portion 22 which will be described later and which is formed at the rear end portion of the table 7 is adapted to press.

A swing arm 14 is swingably provided at a front portion of the upper support 6. Specifically, both side pieces of the U-shaped swing arm 14 are positioned so as to sandwich the side surface of the upper support base 6, and are screwed by the arm fixing screws 15 to thereby swing the arm 14. Is pivotally supported on the upper support 6 so as to be vertically swingable. Further, a female screw 16 is formed in the front center of the swing arm 14, and a male screw 17 formed at the rear end of the reflector 5 is screwed to the female screw 16 to cause the reflector 5 to swing. It is swingably supported by the upper support base 6 via. By the way, the arm fixing screws 15 and 15 are formed in a conical shape at the tip portion thereof, and a straight line connecting the tip end portions thereof indicates the swing center. The swing center line will be described later in detail. It is designed to be included in the virtual reflection surface L1. Further, the modulated light wave can always be radiated toward the center of the reflector 5 by matching the line connecting the conical apices with the standard line of the telescope provided on the modulated light wave emission source side.

On the other hand, a pressing member accommodating chamber 18 for accommodating the pressing member 19 is formed in the front portion of the lower support base 7, and penetrates the pressing member storage chamber 18 and the rear end surface portion of the lower support base 7. A fixing screw 21 is screwed into the screw hole. The pressing member 19 accommodated in the pressing member accommodating chamber 18 has a pressing curved surface 20 on its front surface that comes into surface contact with the outer peripheral surface of the surveying support column 3, and its rear end is pressed by the fixing screw 21. ing. The holding member 19 and the fixing screw 21 form a fixing member of the surveying support column 3. In addition, a lower portion of the vertical through hole 9 is formed in front of the lower support base 7, and a closing convex portion 22 that closes the lower portion of the bubble tube housing chamber 10 is provided at an upper portion of the rear end of the lower supporting base 7. . A screw insertion recess 23, through which the screw 8 is inserted, is formed on the left and right of the rear end of the pressing member housing chamber 18. Further, screw insertion concave portions 19a and 19b having a size such that a gap is formed between the pressing member 19 and the screw 8 are formed on both side surfaces of the pressing member 19.

In order to assemble the support base 2 having the above-described structure, first, the bubble tube 12 and the cushioning material 13 are inserted into the bubble tube storage chamber 10 of the upper support base 6 from below, and in that state. The lower support base 7 accommodating the pressing member 19 is aligned in the pressing member accommodating chamber 18 so that the closing projection 22 fits into the lower part of the bubble tube accommodating chamber 10, and then the screw 8 is inserted from below the lower supporting base 7. Screw it on. As a result, the support base 2 is assembled, and the swing arm 14 is swingably screwed to the support base 2 thus assembled by the arm fixing screw 15, and then the female screw 16 of the swing arm 14 is attached to the reflector 5. The reflector 5 can be supported by the support base 2 by screwing and fixing the male screw 17.

A step portion 24 is formed in the middle of the surveying support column 3 that penetrates through the vertical through hole 9 of the support base 2 to which the lower end of the support base 2 abuts when the support base 2 is inserted. A threaded portion 25 is formed below the stepped portion 24, and further below the threaded portion 25 is formed into a conical shape. The pedestal 4 is screwed to the screw portion 25, and a lock nut 26 for fixing the screwing position of the pedestal 4 is also screwed. The pedestal 4 is formed in a bridge shape with three-point support so that the inside can be visually recognized from the outside. Therefore, when the surveying support column 3 is attached to the pedestal 4, its conical apex 27 can be visually recognized. . At this time, the pedestal 4 may be screwed into the threaded portion 25 so that the position of the apex 27 may be slightly floated, and the lock nut 26 may be fixed at that position.

In the optical distance meter reflector 1 formed as described above, as shown in FIG. 1, the center line passing through the apex 27 of the surveying support column 3 is the virtual reflection surface L 1 of the reflector 5 and the reflector 5. It is designed to pass through the intersection P with the optical axis L2.

Although the configuration of the optical distance meter reflector 1 according to the embodiment has been described above, according to the present embodiment, the bubble tube housing chamber 10 having the horizontal peripheral frame portion 11 that comes into contact with the outer periphery of the upper surface of the bubble tube 12 is described. Since the bubble tube 12 is attached to the support base 2 by inserting and fixing the bubble tube from below, it is not necessary to horizontally fix the bubble tube to another container and reattach the container to the support base horizontally. The tube 12 can be mounted on the support 2. Further, since the surveying column 3 is locked to the vertical through-hole 9 by the pressing member 19 which is in surface contact, the center of the surveying column 3 is accurately aligned with the virtual reflection surface L1 of the reflector 5 and the optical axis L2. It is fixed in a state of passing the intersection point P of. Further, the lower end of the surveying support column 3 is formed in a conical shape with a sharp tip, and the apex 27 of the conical shape is supported by a bridge-shaped pedestal 4 which can be seen from the outside. As shown, the conical apex 27 and the measuring point 31 of the measuring table 30 can be matched very easily with the reflector 5 oriented in a predetermined direction.

In the above-mentioned embodiment, the surveying column 3 is shown as being fixed to the pedestal 4. However, this is mainly the case where a tripod is used and the reflector cannot be installed at the range-finding point. Or, it has the advantage that the distance can be measured extremely quickly when it can be easily placed on the measuring table, but if the pedestal 4 cannot be installed, it will penetrate the support table 2 above and below. It is also possible to use by using a long surveying pole through the hole 9. Further, the lower end of the surveying support column 3 can be screwed and fixed to a tripod for use.

[0017]

[Effect of the device]

 As is apparent from the above description, in the present invention, the bubble tube is inserted and fixed from the lower side of the bubble tube accommodating chamber having the horizontal peripheral frame portion that abuts on the outer periphery of the upper surface of the bubble tube, and Since the fixing member of the surveying strut is composed of a holding member that makes surface contact with the side surface of the strut and a fixing screw that presses the holding member, the purpose is to horizontally fix the bubble tube to another container and re-support the container. There is no need to mount it horizontally on the support, and the bubble tube can be easily mounted on the support, and the center of the surveying column is fixed so that it accurately passes through the intersection of the virtual reflection surface of the reflector and the optical axis. And accurate distance can be measured. In addition, the lower end of the surveying column fixed to the support table configured as described above is formed in a conical shape with a sharp tip, and the apex of the conical shape is formed by a bridge-shaped pedestal that can be seen from the outside. Since it is supported, the apex of the cone and the measurement point can be easily aligned with the reflector oriented in a predetermined direction.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a lightwave rangefinder reflector according to an embodiment.

FIG. 2 is a perspective view of a lightwave distance reflector.

FIG. 3 is an exploded perspective view of a lightwave distance reflector.

[Explanation of symbols]

 1 Lightwave Distance Meter Reflector 2 Supporting Stand 3 Surveying Post 4 Pedestal 5 Reflector 6 Upper Supporting Stand 7 Lower Supporting Stand 9 Vertical Through Hole 10 Bubble Tube Storage Chamber 11 Horizontal Peripheral Frame 12 Bubble Tube 18 Holding Member Storage Room 19 Holding Member 20 Presser curved surface 21 Fixing screw 22 Closure convex portion 27 Apex 31 Measurement point L1 Virtual reflection surface L2 Optical axis P Intersection point

Claims (2)

[Scope of utility model registration request] 1. An up-and-down through hole through which a surveying strut penetrates, and a surface orthogonal to the up-and-down through hole, where an intersection of an imaginary reflection surface of the light wave range finder reflector and an optical axis of the reflector is on its central axis An optical wave range finder reflector support base having a bubble tube that is installed in the bubble tube and a fixing member that fixes the surveying column, wherein the bubble tube has a horizontal peripheral frame portion that abuts an outer periphery of an upper surface of the bubble tube. An optical distance meter reflector characterized in that the fixing member is inserted and fixed from below the bubble tube accommodating chamber, and the fixing member is composed of a pressing member that comes into surface contact with a side surface of the surveying column and a fixing screw that presses the pressing member. Support. 2. The lower end of the surveying column is formed in a conical shape with a pointed tip, and the apex of the conical shape is supported by a bridge-shaped pedestal that can be seen from the outside. Item 1. The lightwave rangefinder reflector support according to item 1.