A multi-directional calibration structure for field stations of an automatic total station

Abstract

This invention proposes a multi-directional calibration structure for an automatic total station at a field station. It includes a mounting base, a vertical lifting assembly, a support assembly, and a horizontal movement assembly. The vertical lifting assembly is fixed to the mounting base, the support assembly is connected to the side of the vertical lifting assembly, and the horizontal movement assembly is fixed to the top of the support assembly. The vertical lifting assembly includes a vertical vernier caliper and a vertical lead screw. The vernier in the vertical caliper is fixedly connected to a vertical slider on the vertical lead screw. The support assembly is connected to the vernier in the vertical caliper. The horizontal movement assembly includes a prism, a horizontal vernier caliper, and a horizontal lead screw. The vernier in the horizontal caliper is fixedly connected to a horizontal slider on the horizontal lead screw, and the prism is fixed to the horizontal slider. This invention achieves horizontal and vertical movement of the device through the lead screw and allows for displacement readings via a digital caliper. It also enables precise vertical and horizontal displacement positioning of the prism, allowing for calibration of the total station at a field station.

Description

Technical Field

[0001] This utility model belongs to the field of safety monitoring and measurement technology, and relates to a multi-directional calibration structure for on-site measurement stations of an automatic total station. Background Technology

[0002] Currently, fully automatic total stations are widely used as automatic measuring instruments in deformation monitoring of civil engineering projects such as water conservancy, highways, bridges, and tunnels. Each monitoring point is located by installing prisms, which the total station automatically searches for and measures the angles and distances to. By comparing the changes in measurements before and after, the displacement of the monitoring point can be determined, thus playing a role in monitoring external deformation and structural safety, as well as disaster prevention and mitigation.

[0003] However, the accuracy of total station measurements cannot be guaranteed due to factors such as environmental climate, installation location, and instrument precision. Therefore, it is necessary to calibrate and standardize the total station's accuracy. Conventional total station calibration involves removing the total station from the field and testing it in a laboratory. However, laboratory calibration tests cannot replicate the field operating environment, and the disassembly and installation of the total station can cause discrepancies between subsequent and historical measurements, resulting in discontinuous monitoring data. Therefore, it is essential to design a device that allows for on-site calibration and standardization of the total station. Utility Model Content

[0004] To address the aforementioned issues, this invention proposes a multi-directional calibration structure for on-site measurement stations of an automatic total station.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An automatic total station field station multi-directional calibration structure includes a mounting base, a vertical lifting assembly, a support assembly, and a horizontal moving assembly. The vertical lifting assembly is fixed to the mounting base, the support assembly is connected to the side of the vertical lifting assembly, and the horizontal moving assembly is fixed to the top of the support assembly. The vertical lifting assembly includes a vertically arranged vertical vernier caliper and a vertical lead screw, with the vernier in the vertical caliper fixedly connected to a vertical slider on the vertical lead screw. The support assembly is connected to the vernier in the vertical caliper. The horizontal moving assembly includes a prism, a horizontally arranged horizontal vernier caliper, and a horizontal lead screw, with the vernier in the horizontal caliper fixedly connected to a horizontal slider on the horizontal lead screw, and the prism fixed to the horizontal slider.

[0007] Furthermore, the vertical lifting assembly also includes upper and lower end caps, and the vertical vernier caliper and vertical lead screw are fixed between the upper and lower end caps.

[0008] Furthermore, the vertical slider is moved by a crank.

[0009] Furthermore, the support assembly includes a support and a leveling plate. One bottom end of the support is connected to the vernier on the vertical caliper. The support is provided with three leveling knobs, and the leveling plate is located on top of the leveling knobs.

[0010] Furthermore, the leveling disc is equipped with a compass and a leveling bubble.

[0011] Furthermore, the horizontal moving assembly also includes a horizontal base and left and right end caps. The horizontal base is fixed to the top of the support assembly, the left and right end caps are fixed to both ends of the horizontal base, and the horizontal vernier caliper and the horizontal lead screw are fixed between the left and right end caps.

[0012] Furthermore, a positioning pointer is provided below the horizontal base.

[0013] Furthermore, the horizontal slider is moved by a knob.

[0014] Furthermore, the mounting base is provided with leveling bubbles.

[0015] Furthermore, the vernier caliper adopts a digital display vernier caliper.

[0016] The beneficial effects of this utility model are as follows:

[0017] The calibration structure consists of a vertical displacement component, a support component, and a horizontal displacement component, which can simultaneously achieve vertical and horizontal displacement calibration. The vertical and horizontal displacement components use lead screws to move the device in the horizontal and vertical directions, and the displacement readings can be obtained through digital calipers. This enables precise vertical and horizontal displacement positioning of the prism, allowing for the calibration of the total station at the local station.

[0018] The leveling plate is equipped with a compass, a leveling bubble, and degrees marked around its circumference. The compass is used to locate true south and true north, while the circumference markings can be used to position the rotation angle of the prism, further improving calibration accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the multi-directional calibration structure for the automatic total station provided by this utility model.

[0020] Figure 2 This is a schematic diagram of the vertical lifting component.

[0021] Figure 3 This is a schematic diagram of the support assembly structure.

[0022] Figure 4 This is a top view of the leveling plate.

[0023] Figure 5 This is a schematic diagram of the horizontal movement component structure.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Mounting base, 2-Vertical lifting assembly, 201-Handle, 202-Upper end cover, 203-Vertical slider, 204-Vertical digital caliper, 205-Vertical lead screw, 206-Lower end cover, 3-Bracket assembly, 301-Bracket, 302-Leveling knob, 303-Leveling disc, 304-Compass, 4-Horizontal movement assembly, 401-Prism, 402-Horizontal digital caliper, 403-Horizontal slider, 404-Horizontal lead screw, 405-Knob, 406-Left end cover, 407-Right end cover, 408-Horizontal base, 409-Positioning pointer, 5-Leveling bubble, 6-Ball bearing, 7-Observation pier. Detailed Implementation

[0026] The technical solution provided by this utility model will be described in detail below with reference to specific embodiments. It should be understood that the following specific embodiments are only used to illustrate this utility model and are not intended to limit the scope of this utility model.

[0027] like Figure 1 As shown, the multi-directional calibration structure for the automatic total station consists of a mounting base 1, a vertical lifting assembly 2, a support assembly 3, and a horizontal moving assembly 4. The mounting base 1 is installed on the observation pier 7, the vertical lifting assembly 2 is fixed to the mounting base 1, the support assembly 3 is connected to the side of the vertical lifting assembly 2, and the horizontal moving assembly 4 is fixed above the support assembly 3.

[0028] The specific structure of each component will be described in detail below:

[0029] The mounting base 1 is equipped with a leveling bubble 5. During installation, the bubble must be centered to ensure that the mounting base 1 is level.

[0030] like Figure 2As shown, the vertical lifting assembly 2 consists of a crank handle 201, an upper end cover 202, a vertical slider 203, a vertical digital caliper 204, a vertical lead screw 205, and a lower end cover 206. The upper and lower end covers are located at the top and bottom of the vertical lifting assembly 2, respectively, and the lower end cover 206 is fixed to the mounting base 1 with screws. The hand-cranked end of the vertical lead screw 205 is fixed to the upper end cover 202, and the other end is fixed to the lower end cover 206. The crank handle 201 controls the up-and-down movement of the vertical slider 203 on the vertical lead screw 205. (The structure of the vertical lead screw 205, vertical slider 203, crank handle 201, and ball bearing 6 used in this example can refer to the common hand-cranked lead screw structure on the market; the vertical lead screw can also be replaced with other types of lead screws, such as a knob type.) A vertical digital caliper 204 is also provided between the upper and lower end covers. The vertical digital caliper 204 is arranged parallel to the vertical lead screw 205. The digital display vernier on the caliper is fixedly connected to the vertical slider 203. When the crank handle 201 is turned, the vertical slider 203 slides along the vertical lead screw 205, and the digital display vernier on the caliper moves accordingly. Combined with the caliper reading, precise digital display vernier height adjustment is achieved. It should be noted that the vertical digital caliper is convenient to read and has high accuracy, making it the best choice under current conditions. It can also be replaced with a non-digital ordinary vernier caliper according to actual needs. The horizontal digital caliper mentioned in this example can also be replaced in the same way. Furthermore, a support rod is also connected between the upper and lower end covers, which can improve the overall balance and stability of the vertical lifting assembly 2.

[0031] like Figure 3 As shown, the support assembly 3 consists of a support 301, leveling knobs 302, and a leveling plate 303. The support 301 is a rectangular frame, with one bottom end fixedly connected to the digital vernier on the vertical digital caliper 204. Three leveling knobs 302 are connected to the top of the support 301. The lines connecting the leveling knobs 302 form an equilateral triangle. The leveling plate 303 is circular and connected to the top of the leveling knobs 302. The leveling plate 303 is equipped with a compass 304, a leveling bubble 5, and graduations around its circumference. The compass is used to locate true south and true north, and the circumferential graduations are used to position the rotation angle of the prism on the horizontal movement assembly 4. A plan view of the leveling plate is shown below. Figure 4 As shown.

[0032] like Figure 5As shown, the horizontal moving assembly 4 consists of a prism 401, a horizontal digital caliper 402, a horizontal slider 403, a horizontal lead screw 404, a knob 405, a left end cover 406, a right end cover 407, and a horizontal base 408. Each component in the horizontal moving assembly 4 is directly or indirectly connected to the horizontal base 408. Specifically, the horizontal base 408 is fixed to the leveling plate 303, and a central rod is located below the horizontal base 408. This central rod is directly connected to the leveling plate, and a positioning pointer 409 is provided on the central rod for positioning the rotation angle of the prism in the horizontal moving assembly 4. The left and right end caps are fixed to both ends of the horizontal base 408. The horizontal lead screw 404 is fixed between the left and right end caps. The left and right sliding of the horizontal slider 403 on the horizontal lead screw 404 is controlled by rotating the knob 405 (the structure of the horizontal lead screw 404, horizontal slider 403, knob 405, and ball bearing 6 used in this example can refer to the common knob lead screw structure on the market. The horizontal lead screw can also be replaced with other types of lead screws, such as a crank type). A horizontal digital caliper 402 is also set between the left and right end caps. The horizontal digital caliper 402 is set parallel to the horizontal lead screw 404. The digital vernier on the caliper is fixedly connected to the horizontal slider 403. When the knob 405 is rotated, the horizontal slider 403 slides along the horizontal lead screw 404, and the digital vernier on the caliper also moves accordingly. With the caliper reading, the precise horizontal position adjustment of the digital vernier is achieved. The prism 401 is fixed on the horizontal slider 403 and moves horizontally with the horizontal slider 403.

[0033] When installing the multi-directional calibration structure for the field station of this automatic total station, install and connect the mounting base 1, vertical lifting assembly 2, support assembly 3, and horizontal movement assembly 4 in sequence, and level each component. Manually position the prism vertically and horizontally by operating the crank 201 and knob 405, and compare the manually set displacement with the data measured automatically by the total station to correct the total station's measurements.

[0034] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A multi-directional calibration structure for on-site measurement stations of an automatic total station, characterized in that, include: The system comprises a mounting base, a vertical lifting assembly, a support assembly, and a horizontal moving assembly. The vertical lifting assembly is fixed to the mounting base, the support assembly is connected to the side of the vertical lifting assembly, and the horizontal moving assembly is fixed to the top of the support assembly. The vertical lifting assembly includes a vertically positioned vertical vernier caliper and a vertical lead screw. The vernier in the vertical caliper is fixedly connected to a vertical slider on the vertical lead screw. The support assembly is connected to the vernier in the vertical caliper. The horizontal moving assembly includes a prism, a horizontally positioned horizontal vernier caliper, and a horizontal lead screw. The vernier in the horizontal caliper is fixedly connected to a horizontal slider on the horizontal lead screw, and the prism is fixed to the horizontal slider. The support assembly includes a bracket and a leveling plate. One end of the bracket is connected to the vernier on the vertical caliper. The bracket has three leveling knobs, and the leveling plate is located on top of the leveling knobs, with degrees engraved around its circumference. The horizontal moving assembly also includes a horizontal base, which is fixed to the top of the support assembly. A positioning pointer is located below the horizontal base, above the leveling plate, and is used to position the rotation angle of the prism on the horizontal moving assembly.

2. The automatic total station field station multi-directional calibration structure according to claim 1, characterized in that, The vertical lifting assembly also includes upper and lower end caps, and the vertical vernier caliper and vertical lead screw are fixed between the upper and lower end caps.

3. The automatic total station field station multi-directional calibration structure according to claim 1 or 2, characterized in that, The vertical slider is moved by a crank.

4. The automatic total station field station multi-directional calibration structure according to claim 1, characterized in that, The leveling plate is equipped with a compass and a leveling bubble.

5. The automatic total station field station multi-directional calibration structure according to claim 1, characterized in that, The horizontal moving assembly also includes left and right end caps, which are fixed at both ends of the horizontal base, and the horizontal vernier caliper and the horizontal lead screw are fixed between the left and right end caps.

6. The automatic total station field station multi-directional calibration structure according to claim 1 or 5, characterized in that, The horizontal slider is moved by a knob.

7. The automatic total station field station multi-directional calibration structure according to claim 1, characterized in that, The mounting base is equipped with leveling bubbles.

8. The automatic total station field station multi-directional calibration structure according to claim 1, characterized in that, The vernier caliper uses a digital display.

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