A precise positioning monitoring device for prefabricated piers of assembled bridges

Abstract

The utility model discloses a device for accurately positioning and monitoring prefabricated piers of assembled bridges, which belongs to the technical field of prefabricated piers, and includes a GNSS antenna, an integrated RTK board, a gyroscope, a support column, a protective shell and an arc-shaped slider, wherein the support column is arranged below the GNSS antenna, the GNSS antenna is fixedly connected to the support column, a protective shell is arranged below the support column, the support column is connected to the protective shell, an integrated RTK board and a gyroscope are arranged inside the protective shell, circular openings are arranged on both sides of the protective shell and an arc-shaped slider is arranged on the front side, the arc-shaped slider is fixedly connected to the front side of the protective shell, the arc-shaped slider groove abuts against the upper end of the pier, and the upper end of the pier is provided with positioning points every one-third of the circumference. The utility model has the advantages of improving the speed and accuracy of pier positioning, real-time monitoring of the position information of the pier, and reducing the workload of construction personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated piers, in particular to a precise positioning monitoring device for prefabricated piers of assembled bridges. Background Art

[0002] With the popularization of prefabricated assembly construction technology in highway bridge or pier construction, steel sleeve grouting connection technology has gradually been applied in the vertical connection of prefabricated concrete components such as prefabricated piers. When using the prefabricated assembly construction technology, the installation process of prefabricated piers has strict requirements on the verticality and installation elevation of the piers. If the verticality and elevation of the piers do not meet the requirements, the structure will be subjected to offset stress, thereby reducing the service life of the structure.

[0003] The utility model patent with publication number CN220266316U discloses a prefabricated pier positioning device for assembled bridges, which can effectively avoid friction between the pier and the positioning device, resulting in a reduction in the service life of the device and affecting the pier installation process. However, the pier positioning process of the device is relatively cumbersome and the positioning accuracy is low.

[0004] The utility model patent with publication number CN219527367U discloses a quick positioning auxiliary device for assembled bridge piers. The design of the device is relatively complex and the construction process is relatively cumbersome. During construction, the working height of the positioning truss needs to be manually adjusted, which has low construction efficiency. Manual adjustment of the height of the positioning frame will result in errors, reducing the positioning accuracy.

[0005] The utility model aims to provide a bridge pier precise positioning monitoring device, which can monitor in real time whether the position of the pier is offset and whether the pier is tilted during the positioning monitoring process, has high positioning accuracy, simple construction process, fast and convenient installation, and can be reused. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a device for accurately positioning and monitoring prefabricated piers of assembled bridges to solve the problems in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A precise positioning and monitoring device for prefabricated piers of assembled bridges, comprising a protective shell, a GNSS antenna, an integrated RTK board, a gyroscope, a support column and an arc-shaped slider, wherein the GNSS antenna is fixedly connected to the support column, the support column is connected to the protective shell, an integrated RTK board and a gyroscope are arranged inside the protective shell, circular openings are arranged on both sides of the protective shell and an arc-shaped slider is arranged on the front side, the arc-shaped slider is fixedly connected to the front side of the protective shell, a groove of the arc-shaped slider abuts against the upper end of the pier, and a positioning point is arranged at every one-third of the circumference of the upper end of the pier.

[0009] As a further technical solution of the utility model, the pier column includes a first positioning point, a second positioning point and a third positioning point, and the first positioning point, the second positioning point and the third positioning point are connected to the arc-shaped sliding block.

[0010] As a further technical solution of the utility model, the arc-shaped slider is welded to the front side of the protective shell, and a rubber anti-skid pad is arranged in the groove of the arc-shaped slider, and the anti-skid pad is fixedly connected in the arc-shaped groove with strong glue.

[0011] As a further technical solution of the utility model, an integrated RTK board is arranged inside the protective shell, and the integrated RTK board has a port connected to the antenna connecting line, and the antenna connecting line is connected to the GNSS antenna.

[0012] As a further technical solution of the utility model, a gyroscope is arranged inside the protective shell, and the gyroscope is welded to the inside of the protective shell.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can increase the friction force when the arc-shaped slider abuts against the pier column by arranging the anti-skid pad made of rubber in the groove of the arc-shaped slider, and the arc-shaped circular rail squeezes and fixes the positioning monitoring device toward the center of the circle, so that the positioning monitoring device is firmly fixed on the upper end of the pier column.

[0015] The utility model uses the RTK module in conjunction with the RTK antenna to obtain the three-dimensional coordinates of the current device in real time. By placing three positioning devices at the three positioning points on the top of the pier column, the three-dimensional coordinates of a single positioning point can be calculated. The three-dimensional coordinates of the positioning monitoring can be transmitted to the terminal device. The three-dimensional coordinates displayed by the terminal device can be used to locate and monitor the real-time position of the pier column in real time and determine the offset of the pier column.

[0016] The utility model obtains the inclination angle of the current device in real time through the gyroscope set inside the protective shell, and places three positioning devices on the three positioning points at the top of the pier column respectively, so as to calculate the inclination angle of a single positioning point, and the inclination angle of the positioning monitoring can be transmitted to the terminal device. In order to reduce the inclination error, the terminal device can take the average value of the three inclination angle values ​​obtained, and can monitor the inclination angle of the pier column in real time.

[0017] The utility model protects the stability of internal structures such as an RTK module and a gyroscope by arranging an upper steel shell and a bottom steel shell, and can cope with various complex environments on the construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a precise positioning monitoring device for prefabricated piers of assembled bridges.

[0019] Figure 2 This is a schematic diagram of the interior of a protective shell in a precise positioning monitoring device for prefabricated piers of assembled bridges.

[0020] Figure 3 This is a schematic diagram of the installation and placement of a precise positioning monitoring device for prefabricated piers of an assembled bridge.

[0021] Figure 4 A top view of the installation and placement of a precise positioning monitoring device for prefabricated piers of an assembled bridge.

[0022] Notes on figure numbers: 1-GNSS antenna, 2-support column, 3-protective shell, 4-arc-shaped slider, 5-rubber anti-slip pad, 6-circular opening, 7-integrated RTK board, 8-gyroscope, 9-antenna connecting line, 10-pier, 11-arc-shaped circular track, 101-first positioning point, 102-second positioning point, 103-third positioning point, 201-first positioning device, 202-second positioning device, 203-third positioning device. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0027] As an embodiment of the present invention, a device for accurately positioning and monitoring prefabricated piers of assembled bridges is provided. Figure 1 to Figure 4 , including a GNSS antenna 1, an integrated RTK board 7, a gyroscope 8, a support column 2, a protective shell 3 and an arc-shaped slider 4, wherein the support column 2 is arranged below the GNSS antenna 1, and the GNSS antenna 1 is fixedly connected to the support column 2, a protective shell 3 is arranged below the support column 2, the support column 2 is connected to the protective shell 3, an integrated PTK board 7 and a gyroscope 8 are arranged inside the protective shell 3, circular openings 6 are arranged on both sides of the protective shell 3 and an arc-shaped slider 4 is arranged on the front side, the arc-shaped slider 4 is fixedly connected to the front side of the protective shell 3, the groove of the arc-shaped slider 4 abuts against the upper end of the pier 10, and positioning points are arranged at every one-third of the circumference on the upper end of the pier 10 for placing the arc-shaped slider 4.

[0028] In this embodiment, see Figure 1 to Figure 4 The pier column 10 includes a first positioning point 101, a second positioning point 102 and a third positioning point 103, and the first positioning point 101, the second positioning point 102 and the third positioning point 103 are connected to the arc-shaped slider 4.

[0029] In this embodiment, see Figure 1 to Figure 4 The arc-shaped slider 4 is welded to the front of the protective shell 3 , and a rubber anti-skid pad 5 is arranged in the groove of the arc-shaped slider 4 , and the anti-skid pad 5 is fixedly connected in the arc-shaped groove with strong glue.

[0030] In this embodiment, see Figure 1 to Figure 4 The protective shell 3 is provided with an integrated RTK board 7, and the integrated RTK board 7 has a port connected to the antenna connection line 9, and the antenna connection line 9 is connected to the GNSS antenna 1

[0031] In this embodiment, see Figure 1 to Figure 4 A gyroscope 8 is disposed inside the protective shell 3 , and the gyroscope 8 is welded to the bottom surface of the protective shell 3 .

[0032] In this embodiment, the GNSS antenna 1 is welded and fixed to the support column 2 below, and the bottom end of the support column 2 is fixedly connected to a protective shell 3. The front of the protective shell 3 is welded and fixed to the arc-shaped slider 4. An integrated RTK board 7 and a gyroscope 8 are placed inside the protective shell 3. The integrated RTK board 7 contains a port connected to the antenna connection line 9.

[0033] like Figures 1 to 4 As shown, in this example, in order to ensure that the positioning detection device can be stably installed on the pier 10 without displacement or shaking, an arc-shaped slider 4 is provided, and a rubber anti-skid pad 5 is provided inside the groove of the arc-shaped slider 4. The rubber anti-skid pad 5 is fixedly connected to the groove of the arc-shaped slider 4 with strong glue.

[0034] Move the positioning monitoring device to the first positioning point 101, and abut the groove of the arc-shaped slider 4 on the front of the monitoring device against the first positioning point 101. Abut the remaining two monitoring devices against the second positioning point 102 and the third positioning point 103 in the same way. Pass the arc-shaped circular rail 11 through the circular openings 6 on both sides of the protective shell 3 of each monitoring device in turn. After the arc-shaped circular rail 11 passes through the circular openings 6 on both sides of the protective shell 3 of the monitoring device, tighten the arc-shaped circular rail 11 so that the positioning device is firmly fixed on the positioning point without displacement. The arc-shaped circular rail 11 connection method can enable the monitoring device to be applied to piers 10 of different sizes.

[0035] The three positioning monitoring devices should be fixedly installed at the three positioning points on the top of the same pier. The first positioning device 201 is installed on the first positioning point 101 to read the three-dimensional coordinates of the first positioning point 101 and the inclination angle of the pier; the second positioning device 202 is installed on the second positioning point 102 to read the three-dimensional coordinates and inclination angle of the second positioning point 102; the third positioning device 203 is installed on the third positioning point 103 to read the three-dimensional coordinates and inclination angle of the third positioning point 103. Through the three-dimensional coordinates of the three positioning points, the axis center position coordinates of the pier can be solved at the terminal, and the real-time axis center position coordinates and the target center position coordinates are subtracted. If it is less than the error range, it is determined that the pier position is correct and no correction is required. If it is greater than the error range, the construction personnel need to correct the pier through the relative position of the axis center coordinates and the target center position. The terminal takes the average value of the inclination angles monitored by the three positioning points to reduce the monitoring error. If the average value is less than the error range, the position of the pier 10 is determined to be accurate and no correction is required. If the average value is greater than the error range, the construction personnel need to correct the inclination of the pier 10 to make it within the error range of the inclination degree.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for accurately positioning and monitoring prefabricated piers of assembled bridges, comprising a protective shell, characterized in that: It also includes a GNSS antenna, an integrated RTK board, a gyroscope, a support column and an arc-shaped slider, the GNSS antenna is fixedly connected to the support column, the support column is connected to the protective shell, an integrated RTK board and a gyroscope are arranged inside the protective shell, circular openings are arranged on both sides of the protective shell and an arc-shaped slider is arranged on the front, the arc-shaped slider is fixedly connected to the front of the protective shell, the arc-shaped slider groove abuts against the upper end of the pier column, and positioning points are arranged at every one-third of the circumference of the upper end of the pier column.

2. The device for accurately positioning and monitoring prefabricated piers of assembled bridges according to claim 1 is characterized in that: The pier column includes a first positioning point, a second positioning point and a third positioning point, and the first positioning point, the second positioning point and the third positioning point are connected to the arc-shaped sliding block.

3. The device for accurately positioning and monitoring prefabricated piers of an assembled bridge according to claim 1 is characterized in that: The arc-shaped slider is welded to the front side of the protective shell, and a rubber anti-skid pad is arranged in the groove of the arc-shaped slider. The anti-skid pad is fixedly connected in the arc-shaped groove by strong glue.

4. The device for accurately positioning and monitoring prefabricated piers of an assembled bridge according to claim 1 is characterized in that: An integrated RTK board is arranged inside the protective shell. The integrated RTK board has a port connected to an antenna connection line, and the antenna connection line is connected to the GNSS antenna.

5. The device for accurately positioning and monitoring prefabricated piers of assembled bridges according to claim 1 is characterized in that: A gyroscope is arranged inside the protective shell, and the gyroscope is welded to the inside of the protective shell.

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