CN204405072U - A kind of total powerstation centering rod of automatic upright - Google Patents

Abstract

The utility model discloses an automatic upright centering rod of a total station, which comprises a telescopic centering rod body and a prism fixed on the top of the centering rod body through a prism clamping device, and the center of gravity of the prism is located at the axis center of the centering rod body On the line, the lower end of the centering rod body is equipped with a level bubble device and a calibration device, and the lower end of the centering rod body is also equipped with a balance device. The balance device includes an inverted U-shaped balance ball connecting rod and two symmetrically arranged at the bottom of the balance ball connecting rod. A balance ball, the balance ball connecting rod is symmetrically fixed on the lower end of the centering rod body, and a lower pad is also provided under the tapered rod foot of the centering rod body, so that the center of gravity of the centering rod body is lower than the tapered rod foot. The utility model ensures that the centering rod erecting the prism is absolutely vertical, and the measurement marks are accurate, and at the same time, the labor intensity of the operators of the centering rod is greatly reduced, and the structure is simple and the operation is convenient.

Description

An Automatic Upright Centering Rod for Total Station

technical field

The utility model relates to a centering rod, in particular to an automatic upright centering rod for a total station.

Background technique

In engineering surveying, the total station is the most frequently used instrument. When the total station is in use, it collects the rays reflected by the prism device for measurement work. After the measurement is completed, the correct coordinates and points can be measured by using the principle that the prism optical center is concentric with the prism rod, and the prism optical center is consistent with the plane coordinates of the lower cone tip of the prism rod when the prism rod is vertical. However, in the actual survey and design process, it is difficult for the operator to control the centering rod erecting the prism to be absolutely vertical, resulting in inaccurate measurement and marking results.

When performing long-distance measurement, the process of aiming the total station at the prism is time-consuming, and the operator of the centering pole needs to keep still for a long time, which is very easy to fatigue. Although there is a special bracket for the centering pole at present, its principle is similar to that of a tripod, and the leveling process is time-consuming and laborious.

Utility model content

In order to overcome the above-mentioned defects in the prior art, the purpose of this utility model is to provide an automatic upright total station centering pole. The utility model ensures that the centering pole on which the prism is erected is absolutely vertical, and the measurement marks are accurate. At the same time, the labor intensity of the operators of the centering rod is also greatly reduced.

In order to achieve the above object, the utility model adopts the following technical solutions:

An automatic upright centering pole of a total station, including a telescopic centering pole body and a prism fixed on the top of the centering pole body through a prism clamping device, the center of gravity of the prism is located on the center line of the centering pole body, and the centering The lower end of the rod body is equipped with a level bubble device and a calibration device, and the lower end of the centering rod body is also provided with a balance device, which includes an inverted U-shaped balance ball connecting rod and two balance balls symmetrically arranged at the end of the balance ball connecting rod. The balance ball connecting rod is symmetrically fixed on the lower end of the centering rod body, and a lower pad is also provided under the tapered rod foot of the centering rod body, so that the center of gravity of the centering rod body is lower than the tapered rod foot.

Further, the centering rod body includes an upper segment rod body and a lower segment rod body, the diameter of the upper segment rod body is smaller than the diameter of the lower segment rod body, so that the upper segment rod body can just extend into the interior of the lower segment rod body, and the connection between the two is set There is a locking device.

Further, the said level bubble device includes a level bubble and a base, the base is vertically connected with the centering rod, and the level bubble is arranged on the base.

Further, the calibration device includes a calibration screw arranged perpendicular to the centering rod and a calibration nut mated with the calibration screw.

Further, the lower pad is in the shape of a conical cone, and an inverted conical groove is provided at the center of its top surface, and the tip of the tapered rod foot is placed in the inverted conical groove.

Further, when the centering rod body is placed on the lower pad, the balance ball does not touch the ground, and the centering rod body can freely rotate with the lower pad as a fulcrum.

Further, the calibration screw and the crossbar of the balance ball connecting rod are on the same plane, and this plane is perpendicular to the centering rod body.

Further, the centering rod body is made of carbon fiber material.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model is provided with a balance device, because the balance device moves the overall center of gravity of the centering rod body below the tapered rod foot, and the balance device is a fixed part. According to the principle "an object with low potential energy is relatively stable, and the object will definitely change to a state with low potential energy", the automatic balance of the centering rod can be realized: when the centering rod falls down, the balance device that concentrates most of the center of gravity will be lifted This increases the potential energy, so after the centering rod is placed vertically, the centering rod will not fall down (similar to the tumbler principle). Then by adjusting the calibration nut, the level bubble of the level bubble device can be placed in the central position and then the measurement can be carried out. The utility model improves the accuracy of the measurement data of the total station, reduces the labor intensity of the measurement personnel, and has a simple structure and is easy to operate. convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a top view of the balancing device of the present invention.

Among them: 1. Prism; 2. Prism clamping device; 3. Centering rod body; 31. Upper segment rod body; 32. Lower segment rod body; 4. Locking device; 5. Level bubble device; 6. Balance ball; 7. Balance ball connecting rod; 8, calibration screw; 9, calibration nut; 10, lower pad.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1 and Fig. 2, an automatic upright total station centering rod includes a telescopic centering rod body 3 and a prism 1 fixed on the top of the centering rod body 3 by a prism clamping device 2, the prism 1 The center of gravity is located on the axis line of the centering rod body 3. The centering rod body 3 is made of light and high-strength carbon fiber material, including an upper segment rod body 31 and a lower segment rod body 32. The diameter of the upper segment rod body 31 is smaller than that of the lower segment rod body 32. , so that the upper section rod body 31 can just extend into the inside of the lower section rod body 32, and the joint between the two is provided with a locking device 4, and the lower end of the centering rod body 3 is provided with a level bubble device 5 and a calibration device. 5 includes a leveling bubble and a base, the base is vertically connected to the centering rod 3, the leveling bubble is arranged on the base, the calibration device includes a calibration screw 8 arranged perpendicular to the centering rod 3 and a calibration nut that is connected with the calibration screw 8 9. A balance device is also provided at the lower end of the centering rod body 3. The balance device includes an inverted U-shaped balance ball connecting rod 7 and two balance balls 6 symmetrically arranged at the end of the balance ball connecting rod 7. The balance ball connecting rod 7 is symmetrically fixed on the lower end of the centering rod body 3, and a lower pad 10 is provided under the tapered rod foot of the centering rod body 3, so that the center of gravity of the centering rod body 3 is lower than the tapered rod foot, and the lower pad 10 is in the shape of a truncated cone. The center of the top surface is provided with an inverted tapered groove, and the tip of the tapered rod foot is placed in the inverted tapered groove. When the centering rod body 3 is placed on the lower pad 10, the balance ball 6 does not touch the ground, And the centering rod body 3 can freely rotate with the lower block 10 as a fulcrum.

The operating process of the present utility model is described in further detail below:

Place the lower block 10 at the measuring point, fix the prism 1 on the prism lens clamping device 2, place the centering rod body 3 upright on the lower block 10, ensure that the balance ball 6 does not touch the ground, and adjust the upper rod body 31 to insert the lower block. When the rod body 32 reaches a suitable length, tighten the locking device 4, and adjust the direction of the prism 1 to face the direction of the total station. The level needs to be adjusted for the first use. According to the position of the level bubble, the calibration nut 9 is rotated, and finally the level bubble is centered to realize the absolute vertical of the centering rod body 3 .

The total station collimates the prism 1 for measurement. After the completion, move the lower block 10 and the centering rod body 3 to the next measuring point to carry out the measurement of the next measuring point. At this time, only the automatic upright total station needs to align The middle rod body 3 is placed on the lower block 10, and does not need to be calibrated again.

The utility model is provided with a balance device, because the balance device moves the overall center of gravity of the centering rod body 3 below the tapered rod foot, and the balance device is a fixed part. According to the principle that "an object with low potential energy is relatively stable, and the object will definitely change towards a state with low potential energy", the automatic balance of the centering rod body 3 can be realized: when the centering rod body 3 falls down, the balance device that concentrates most of the center of gravity will It is raised, so that the potential energy increases, so after the centering rod body 3 is placed vertically, the centering rod body 3 will not fall down (similar to the tumbler principle). Then by adjusting the calibration nut 9, the level bubble of the level bubble device 5 can be placed in the central position and then the measurement can be carried out. The utility model improves the accuracy of the measurement data of the total station, reduces the labor intensity of the measuring personnel, and has a simple structure , easy to operate.

Claims (7)

1. the total powerstation centering rod of an automatic upright, it is characterized in that, comprise the centering body of rod (3) that can stretch and the prism (1) being fixed on the centering body of rod (3) top by prism clamping device (2), the center of gravity of described prism (1) is positioned on the centering body of rod (3) axial line, the centering body of rod (3) lower end is provided with leveling bubble device (5) and calibrating installation, the lower end of the centering body of rod (3) is also provided with balance device, balance device comprises the balanced ball connecting link (7) of inverted U and is symmetricly set on two balanced balls (6) of balanced ball connecting link (7) end, described balanced ball connecting link (7) is symmetrically fixed on the lower end of the centering body of rod (3), the tapered rod underfooting of the centering body of rod (3) is also provided with lower cushion block (10), make the center of gravity of the centering body of rod (3) lower than tapered rod pin.

2. the total powerstation centering rod of a kind of automatic upright according to claim 1, it is characterized in that, the described centering body of rod (3) comprises pole body (31) and lower pole body (32), the diameter of upper pole body (31) is less than the diameter of lower pole body (32), make pole body (31) just can stretch into lower pole body (32) inner, and the junction of the two is provided with locking device (4).

3. the total powerstation centering rod of a kind of automatic upright according to claim 1, it is characterized in that, described leveling bubble device (5) comprises leveling bubble and base, and base is connected with the centering body of rod (3) is vertical, and leveling bubble is located on base.

4. the total powerstation centering rod of a kind of automatic upright according to claim 1, it is characterized in that, described calibrating installation comprises the calibration screw (8) arranged perpendicular to the centering body of rod (3) and the calibration nut (9) be connected with calibration screw (8).

5. the total powerstation centering rod of a kind of automatic upright according to claim 4, it is characterized in that, calibration screw (8) is in the same plane with the cross bar of balanced ball connecting link (7), and this plane is vertical with the centering body of rod (3).

6. the total powerstation centering rod of a kind of automatic upright according to claim 1, is characterized in that, lower cushion block (10) is truncated cone-shaped, and its end face center is provided with back taper groove, and the tip of tapered rod pin is placed in this back taper groove.

7. the total powerstation centering rod of a kind of automatic upright according to claim 1, is characterized in that, the described centering body of rod (3) is carbon fibre material.