CN102777737A - Sleeve clip type measurement tripod - Google Patents

Abstract

The invention discloses a clamp-type measuring tripod, which has a base (1) and a foot (2) connected to the base (1). The base (1) is ring-shaped, and the base (1) 1) There are at least three horizontal top wires (3) evenly distributed on the top. It can be applied to columnar measuring facilities (leveling rods, reflecting prisms, benchmarks, etc.), and precise leveling can be achieved by adjusting the feet and the horizontal jackscrew on the horizontal plane of the ring-shaped base. Improve measurement efficiency and accuracy.

Description

Clip-on measuring tripod

technical field

The invention relates to a measurement auxiliary device, in particular to a clip-on type measurement tripod which is easy to operate and can effectively improve measurement efficiency and accuracy.

Background technique

In geodetic surveying and engineering surveying, it is necessary to place measuring instruments such as theodolite, level, and total station on the tripod. On the one hand, the measuring range of the instrument can be expanded, and on the other hand, it is convenient for the surveyor to operate the instrument. Existing tripod also claims tripod, has base, and base is flat plate shape, is provided with fixing parts such as vertical screw at the center of base, is connected with base and has three legs, the length of legs and base. The angle between the seats can be adjusted. When measuring, fix the measuring instrument on the base with screws, etc., and adjust the length and angle of the feet so that the reference plane of the measuring instrument is consistent with the horizontal plane at the measuring point and the vertical axis of the measuring instrument is consistent with the vertical line at the measuring point . There are following problems in existing tripod:

(1) Since the measuring instrument is placed on the base and separated from the ground measurement mark points, time-consuming and laborious adjustments are required during the measurement to ensure that the vertical axis of the measuring instrument coincides with the vertical line passing through the measurement mark points, and the measurement instrument needs to be observed The vertical distance between the reference plane and the ground marker points, these links increase the difficulty of measurement and reduce work efficiency, and reduce the accuracy of measurement due to many error sources.

(2) It cannot be applied to cylindrical measuring facilities such as leveling rods, total station reflecting prism poles, GPS (Global Satellite Positioning System) surveying poles, etc. It is time-consuming and laborious, and it is difficult to ensure accurate leveling, thereby reducing the accuracy of measurement.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, and to provide a clip-on measuring tripod that is easy to operate and can effectively improve measurement efficiency and accuracy.

The technical solution of the present invention is: a clamp-type measuring tripod, which has a base and feet connected to the base, the base is ring-shaped, and at least three transverse top wire.

An instrument support rod is built in the annular base, an instrument mounting seat is connected to the end of the instrument support rod, and a height scale is marked on the side of the instrument support rod.

The lateral inner side of the annular base is flexibly connected to the first inner ring through the first shaft, and the lateral inner side of the first inner ring is connected to the second inner ring through the second shaft, and the difference between the first shaft and the second shaft in the lateral direction is 90 degree, at least three transverse top wires are evenly distributed on the first inner ring and the second inner ring.

Compared with the prior art, the present invention can be applied to columnar measuring facilities (leveling rods, reflecting prisms, benchmarks, etc.), and precise leveling can be achieved by adjusting the feet and the horizontal jackscrews on the horizontal plane of the annular base without Hand-held operation by surveyors is easy to operate and improves measurement efficiency and accuracy; when applied to measuring instruments (theodolite, level, total station, etc.), precise leveling can be achieved by adjusting the feet and horizontal jacking wires, The datum plane of the measuring instrument is consistent with the horizontal plane at the measuring point, and the vertical axis of the measuring instrument is consistent with the vertical line at the measuring point, and there is no need for the measuring instrument to observe the vertical distance between the datum plane and the ground marker point, which has the advantages of easy operation, improved measurement efficiency and advantages such as accuracy.

Description of drawings

1, 2, 3 and 4 are schematic structural views of Embodiment 1 of the present invention.

Fig. 5 is a use effect diagram of Embodiment 1 of the present invention.

Fig. 6 is a schematic structural diagram of Embodiment 2 of the present invention.

7 and 8 are structural schematic diagrams of Embodiment 3 of the present invention.

Detailed ways

Example 1:

As shown in Figures 1, 2, 3, and 4: the same as the prior art, there is a horizontally arranged base 1 and a foot 2 connected to the base 1. The difference from the prior art is that the base 1 is a ring At least three horizontal jacking wires 3 are evenly distributed on the annular base 1 , that is, the horizontal jacking wires 3 are located on the horizontal plane of the annular base 1 . The annular base 1 can be a closed integral structure, or an open and close split structure, and can be in various shapes at the same time. Figure 3 shows a triangle, and a top wire 3 is arranged on each side of the triangle, and a quadrilateral is shown in Figure 4, and a top wire 3 is arranged on each side of the quadrilateral.

Using Embodiment 1 of the present invention as shown in Figure 5: the cylindrical measuring facilities 11 such as the leveling rod, the total station reflective prism pole, the GPS surveying pole, etc. are placed in the annular base 1, which can be stably placed on the measurement mark point, By adjusting the flaring angle and length of the legs 2, the columnar measuring facility 11 can be stabilized and roughly vertical, and the jackscrew 3 can be fine-tuned to make the pole vertical and accurately leveled.

Example 2:

As shown in Figure 6: the basic structure is the same as that of Embodiment 1, and the difference from Embodiment 1 is that an instrument support rod 4 is built in the annular base 1, and an instrument mounting seat 5 is connected to the end of the instrument support rod 4, and the instrument support rod 4 The side is marked with a height scale 6. The instrument mount 5 is the same as the existing tripod, and is made of plate bases and fixings such as screws.

Place the instrument support rod 4 on the measurement mark point, adjust the flare angle and length of the foot 2, make the instrument support rod 4 stable and roughly vertical, and fix the measuring instruments such as theodolite, level and total station on the instrument mounting base 5 , Fine-tune the top wire 3 to accurately level the measuring instrument. Through the height scale 6 on the side of the instrument support rod 4, the vertical distance between the instrument observation reference plane and the ground marker point can be determined without measurement.

Example 3:

As shown in Figure 7 and Figure 8: the basic structure is the same as that of Embodiment 1, and the difference from Embodiment 1 is that the first shaft 7 is flexibly connected to the first inner ring 8 on the lateral inner side of the annular base 1, that is, the first inner ring The ring 8 can rotate around the first shaft 7 in the annular base 1; the lateral inner side of the first inner ring 8 connects with the second inner ring 10 through the second shaft 9, that is, the second inner ring 10 can be rotated on the first The inner ring 8 rotates with the second shaft 9 as the axis, the first shaft 7 and the second shaft 9 are 90 degrees apart in the transverse direction, and there are at least three transverse shafts evenly distributed on the first inner ring 8 and the second inner ring 10 . Top wire3. In order to facilitate the installation and operation of the jacking wire 3 , the heights of the annular base 1 , the first inner ring 8 and the second inner ring 10 are successively increased, and the jacking wire 3 is arranged at a relatively higher position.

Embodiment 3 of the present invention, as shown in Figures 7 and 8, is especially suitable for rapid leveling of complex terrain, and the flare angle and length of the legs 1 can be adjusted to stabilize the legs. At this moment, the second inner ring 10 has been roughly in a horizontal state under the action of gravity, and the top wire 3 positioned on the annular base 1 and the first inner ring 8 is adjusted so that the first inner ring 8 and the second inner ring 10 are all opposite to each other. Fix on the ring base 1, then put the columnar measuring facility 11 into the second inner ring 10, and fine-tune the jacking screw 3 of the second inner ring 10, so that the columnar measuring facility 11 is precisely vertical.

Claims (3)

1. A clamp-on measuring tripod, with a base (1) and a foot (2) connected to the base (1), characterized in that: the base (1) is ring-shaped, and At least three horizontal top wires (3) are evenly distributed on the base (1). 2. The clamp-type measuring tripod according to claim 1, characterized in that: an instrument support rod (4) is built into the annular base (1), and an instrument installation rod (4) is terminated on the instrument support rod (4) seat (5), and the height scale (6) is marked on the side of the instrument support rod (4). 3. The clip-on measuring tripod according to claim 1, characterized in that: the lateral inner side of the annular base (1) is movably connected with the first inner ring (8) through the first shaft (7), and the second An inner ring (8) connects to the second inner ring (10) through the second shaft (9) on the lateral inner side, and the difference between the first shaft (7) and the second shaft (9) is 90 degrees in the lateral direction. At least three transverse top wires (3) are evenly distributed on the ring (8) and the second inner ring (10).

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