A bubble correction device and correction method for centering rod of total station

Abstract

This invention discloses a bubble correction device for a total station centering rod. The device is mounted on a flat wall and includes a U-shaped frame. The closed end of the U-shaped frame is connected to the wall and is perpendicular to the wall. The two sides of the U-shaped frame are on the same plane in the vertical direction. A connecting ring is connected to the open end of the U-shaped frame near the ground. The connecting ring is parallel to the side of the U-shaped frame. A screw that mates with the end of the centering rod is connected to the end of the connecting ring away from the U-shaped frame. A circular steel ring is also provided on one side of the bottom of the wall, corresponding to the connecting ring. This invention also discloses a bubble correction device for a total station centering rod. Using the above-mentioned bubble correction device for a total station centering rod, the device of this invention does not require a support frame during correction, making it simple and economical. The method of this invention is simple and easy to operate, and the accuracy is well guaranteed. The device of this invention can also be used as a bubble correction device for GPS antenna masts.

Description

Technical Field

[0001] The invention belongs to the technical field of total station centering rod correction, and relates to a bubble correction device for a total station centering rod.

[0002] The invention also relates to a bubble correction method for a centering rod of a total station. Background Art

[0003] The centering rod of the total station is a commonly used instrument in the total station's angle measurement, distance measurement, coordinate measurement, and layout operations. A reflective prism is installed on the centering rod as the aiming target of the total station. During operation, the centering rod must be kept plumb to ensure that the center of the prism and the measuring point on the ground are on the same plumb line. Therefore, a round bubble is installed on the centering rod. The correct position of the round bubble is the basis for ensuring the plumbness of the centering rod. Due to the frequent use of the centering rod, the round bubble on the centering rod is often loose and offset, resulting in the prism center and the measuring point not being on the same plumb line, thus affecting the measurement accuracy. The commonly used calibration method at present is the instrument calibration method: first, stand the centering pole with a bracket on the ground, set up two total stations on the ground, the two instruments are roughly at a 90° angle with the centering pole, and the instruments are about 20 meters away from the centering pole. The total station is accurately leveled so that the vertical wires of the two total stations coincide with the two edges of the centering pole. If they do not coincide, move the centering pole to make them coincide. After both sides coincide, the centering pole is plumb. At this time, look at the round bubble. If the round bubble is in the circle, there is no need to adjust it. If it is not in the circle, use a dial or an Allen wrench to adjust the round bubble into the circle. If this method is used for indoor calibration, the centering pole is not easy to be firmly fixed on the ground. If a little more force is used when adjusting the bubble, the centering pole will move, affecting the accuracy. At the same time, other personnel are required to cooperate, which is time-consuming and laborious. It is even more troublesome to place it outdoors. Summary of the invention

[0004] The purpose of the present invention is to provide a bubble correction device for a centering rod of a total station, which solves the problem that the steps of the existing correction technology are complicated and time-consuming.

[0005] The first technical solution adopted by the present invention is a bubble correction device for a centering rod of a total station. The device is arranged on a flat wall and includes a U-shaped frame. The closed end of the U-shaped frame is connected to the wall, and the U-shaped frame is perpendicular to the wall. Both side edges of the U-shaped frame are located in the same plane in the vertical direction. A connecting ring is connected to the end of the U-shaped frame opening close to the ground, and the connecting ring is parallel to the side of the U-shaped frame. The end of the connecting ring away from the U-shaped frame is also connected to a spiral that cooperates with the end of the centering rod. A circular steel ring is also arranged on one side of the bottom of the wall, and the circular steel ring corresponds to the connecting ring.

[0006] The first technical solution of the present invention is also characterized in that:

[0007] The connecting ring is a rectangular steel plate, and a long through hole is arranged on the surface of the rectangular steel plate, and the through hole is parallel to the side of the U-shaped frame;

[0008] The spiral is composed of two interlocking cylindrical spiral bodies and spiral body A, the spiral body and spiral body A have the same structure, one end of the spiral body is a bolt groove, the other end of the spiral body is a bolt head, and the long through hole of the connecting ring is located between the spiral body and spiral body A;

[0009] The bolt groove of the spiral body A points to the circular steel ring;

[0010] The distance between the circular steel ring and the U-shaped frame is 1.5m;

[0011] A circular hole is also arranged in the center of the circular steel ring.

[0012] Another technical solution of the present invention is a method for correcting bubbles in a centering rod of a total station, which uses a bubble correction device for a centering rod of a total station and is specifically implemented in the following steps:

[0013] Step 1: Check the plumbness of the calibration device, insert the tip of the centering rod into the circular steel ring on the ground, and connect the upper part of the centering rod to the spiral on the connecting ring;

[0014] Step 2. Observe the circular bubble on the centering rod. If the circular bubble is within the circle, the prism rod is plumb. If the circular bubble is deviated or out of the circle, use a dial or hexagon wrench to adjust the bubble into the circle.

[0015] The second technical solution of the present invention is also characterized in that:

[0016] Among them, in step 1, the specific process of the plumb calibration device is: use the hammer ball suspension method to ensure that the spiral and the circular steel ring are on a plumb line, use the hammer ball line to pass through the small hole in the center of the spiral, and connect the other end of the hammer ball line to the hammer ball, so that the tip of the hammer ball is aligned with the hole of the circular steel ring on the ground, ensuring that the center of the spiral and the center of the circular steel ring on the ground are on a plumb line.

[0017] The beneficial effects of the present invention are:

[0018] The bubble correction device for the centering rod of the total station of the present invention does not need to be equipped with a bracket during correction, which is simple and economical. In addition, the centering rod is fixed during the correction process and will not move during correction, so it is convenient to adjust. This method is simple and easy to operate, and the accuracy can be well guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall assembly structure diagram of a bubble correction device for a centering rod of a total station according to the present invention;

[0020] Figure 2 It is an assembly structure diagram of a bubble correction device for a centering rod of a total station according to the present invention;

[0021] Figure 3 It is a structural schematic diagram of the connection between the spiral and the connecting ring of a bubble correction device for a centering rod of a total station according to the present invention;

[0022] Figure 4 It is a structural schematic diagram of a connecting ring of a bubble correction device for a centering rod of a total station according to the present invention;

[0023] Figure 5 The invention discloses a structural schematic diagram of a circular steel ring of a bubble correction device for a centering rod of a total station.

[0024] In the figure, 1. U-shaped frame, 2. spiral, 3. connecting ring, 4. round steel ring, 5. centering rod, 6. round bubble, 7. spiral A. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present invention provides a bubble correction device for a centering rod of a total station, such as Figure 1 and Figure 2 As shown, the device is arranged on a flat wall, including a U-shaped frame 1, the closed end of the U-shaped frame 1 is connected to the wall, and the U-shaped frame 1 is perpendicular to the wall, the two sides of the U-shaped frame 1 are located in the same plane in the vertical direction, and the end of the U-shaped frame 1 close to the ground is connected with a connecting ring 3, and the connecting ring 3 is parallel to the side of the U-shaped frame 1, as shown in FIG. Figure 4 As shown, the connecting ring 3 is a rectangular steel plate, and a long through hole is arranged on the surface of the rectangular steel plate, and the through hole is parallel to the side of the U-shaped frame 1. The end of the connecting ring 3 away from the U-shaped frame 1 is also connected to a spiral that cooperates with the end of the centering rod. The spiral is a prismatic spiral, and the spiral is two embedded cylindrical spiral bodies, that is, the two ends of the spiral body are respectively a thread groove and a thread head, as shown in FIG. Figure 3 As shown, the elongated through hole of the connecting ring 3 is located between the two spiral bodies, the bolt head of one of the spiral bodies A7 extends from the bottom of the connecting ring 3 into the elongated through hole, the bolt groove at the end of the other spiral body 2 cooperates with the bolt head of the spiral body A7 extending into the elongated through hole, the bolt groove of the spiral body A7 cooperates with the centering rod, and the elongated through hole is clamped between the two spiral bodies. A circular steel ring 4 is also provided on one side of the bottom of the wall, as shown in FIG. Figure 5 As shown, a circular hole is also provided in the center of the circular steel ring 4 for clamping the tip of the centering rod 5. The circular steel ring 4 corresponds to the bolt head of the spiral A7 on the connecting ring 3, and the distance between the circular steel ring 4 and the connecting ring 3 is 1.5m.

[0027] This device can also be used as a correction device for the GPS antenna rod bubble.

[0028] The present invention also provides a correction method for a bubble correction device for a centering rod of a total station, which is specifically implemented according to the following steps:

[0029] Step 1, confirm the plumbness of the calibration device. The specific process of plumbing the calibration device is as follows: use the hammer ball suspension method to ensure that the spiral and the circular steel ring 4 are on a plumb line, use the hammer ball line to pass through the small hole in the center of the spiral, and connect the other end of the hammer ball line to the hammer ball, so that the tip of the hammer ball is aligned with the circle hole of the circular steel ring 4 on the ground, ensuring that the center of the spiral and the center of the circular steel ring 4 on the ground are on a plumb line. The long through hole can ensure that the displacement of the spiral is adjusted when adjusting the corresponding relationship between the spiral and the circular steel ring 4;

[0030] Then insert the tip of the centering rod 5 into the circular steel ring 4 on the ground, fix the circular steel ring 4 on the ground with strong glue, and connect the upper part of the centering rod 5 with the bolt groove of the spiral A7 on the connecting ring 3;

[0031] Step 2, because the center of the spiral on the U-shaped frame 1 and the center of the small hole of the circular steel ring 4 on the ground are in a straight line, the installed centering rod 5 is plumb. Observe the circular bubble 6 on the centering rod 5. If the circular bubble is in the circle, the centering rod 5 is plumb and does not need to be corrected. If the circular bubble is deviated or runs out of the circle, use a dial or an inner hexagonal wrench to adjust the circular bubble into the circle. Moreover, the spiral of the present invention uses a spiral connecting two prisms with the centering rod, and the connecting ring 3 is a connecting ring between the center spiral and the instrument tripod, which are all ready-made and do not need to be made separately.

Claims

1. A bubble correction device for a centering rod of a total station, the device being arranged on a flat wall, characterized in that: The invention comprises a U-shaped frame (1), wherein the closed end of the U-shaped frame (1) is connected to a wall surface, and the U-shaped frame (1) is perpendicular to the wall surface, and the two side edges of the U-shaped frame (1) are located in the same plane in the vertical direction, and the end of the U-shaped frame (1) close to the ground is connected to a connecting ring (3), and the connecting ring (3) is parallel to the side of the U-shaped frame (1), and the end of the connecting ring (3) away from the U-shaped frame (1) is also connected to a spiral that cooperates with the end of the centering rod, and a circular steel ring (4) is also provided on one side of the bottom of the wall, and the circular steel ring (4) corresponds to the connecting ring (3); The connecting ring (3) is a rectangular steel plate, and a long through hole is provided on the surface of the rectangular steel plate, and the through hole is parallel to the side of the U-shaped frame (1); The spiral is composed of two interlocking cylindrical spiral bodies (2) and spiral body A (7), the spiral body (2) and spiral body A (7) having the same structure, one end of the spiral body (2) being a bolt groove, the other end of the spiral body (2) being a bolt head, and the long through hole of the connecting ring (3) being located between the spiral body (2) and the spiral body A (7); The distance between the circular steel ring (4) and the connecting ring (3) is 1.5 m.

2. A bubble correction device for a centering rod of a total station according to claim 1, characterized in that: The bolt groove of the spiral body A (7) points to the circular steel ring (4).

3. The bubble correction device for centering rod of total station according to claim 1, characterized in that: The circular steel ring (4) is also provided with a circular hole in its centre.

4. A method for correcting bubbles in a centering rod of a total station, using a bubble correction device for a centering rod of a total station as claimed in any one of claims 1 to 3, characterized in that: Please follow the steps below to implement: Step 1: Check that the calibration device is plumb, then insert the tip of the centering rod into the circular steel ring (4) on the ground, and connect the upper part of the centering rod (5) to the screw (2) on the connecting ring (3); Step 2, observe the circular bubble (6) on the centering rod (5). If the circular bubble is within the circle, the centering rod (5) is vertical. If the circular bubble is deviated or out of the circle, use a needle or hexagonal wrench to adjust the bubble into the circle. In step 1, the specific process of correcting the verticality of the device is as follows: using the hammer ball suspension method to ensure that the spiral and the circular steel ring (4) are on a plumb line, using a hammer ball line to pass through the small hole in the center of the spiral, and connecting the other end of the hammer ball line to a hammer ball, so that the tip of the hammer ball is aligned with the hole of the circular steel ring (4) on the ground, ensuring that the center of the spiral and the center of the circular steel ring (4) on the ground are on a plumb line.

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