A dynamic measurement tool for high-altitude slip deviation of large-span steel structures

Abstract

The present invention relates to a dynamic measuring tool for high-altitude slip deviation of a large-span steel structure, comprising a measuring frame fixedly arranged on the large-span steel structure, a coordinate plate fixedly arranged on the upper surface of a slip beam, and an external mobile terminal, wherein the measuring frame is composed of a support rod and a probe, the coordinate plate includes a housing, a piezoelectric generator, a wireless transmitter and a battery, and the mobile terminal is composed of a wireless receiver and a laptop computer connected together. The purpose of the present invention is to solve the problem that the current slip deviation measurement is inconvenient to operate and cannot guarantee accuracy, and to provide a dynamic measuring tool for high-altitude slip deviation of a large-span steel structure that can be self-powered.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure slippage, and in particular to a dynamic measuring tool for high-altitude slippage deviation of a large-span steel structure. Background Art

[0002] For the high-altitude sliding construction technology of large-span steel structures, the synchronization of steel structure sliding is mainly dynamically adjusted and controlled based on the sliding distance and angle deviation of each sliding device. The accuracy of each sliding precision will affect the final cumulative error. Therefore, how to accurately and quickly measure the forward sliding distance and angle deviation of each sliding device is particularly important. At present, most of the construction workers go to high altitudes for manual measurement after sliding. Manual measurement is not only unreliable, but also requires climbing to a high place, which reduces the measurement efficiency. At the same time, climbing and measuring at high altitudes also increase the safety risks of construction workers. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the current measurement of slip deviation is inconvenient and the accuracy cannot be guaranteed, and to provide a self-powered dynamic measuring tool for the high-altitude slip deviation of large-span steel structures.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A dynamic measurement tool for high-altitude sliding deviation of a large-span steel structure, comprising a measurement frame fixedly arranged on the large-span steel structure, a coordinate plate fixedly arranged on the upper surface of a sliding beam, and an external mobile terminal, wherein the measurement frame is composed of a support rod and a probe, wherein one end of the support rod is fixedly arranged on the large-span steel structure, and the other end is fixedly arranged with a vertical probe, and the lower end of the probe abuts against the upper surface of the coordinate plate;

[0006] The coordinate plate comprises a shell, a piezoelectric generator, a wireless transmitter and a battery. The shell is a hollow rectangular flat shell. A plurality of piezoelectric generator arrays are arranged on the upper surface of the shell. The wireless transmitter and the battery are fixedly arranged in the shell. The piezoelectric generator is connected to the wireless transmitter and the battery.

[0007] The mobile terminal is composed of a wireless receiving device and a laptop computer connected together. When the large-span steel structure slides relative to the sliding beam, the lower end of the probe rolls over the piezoelectric generator on the coordinate plate. The sliding path of the probe is displayed on the laptop computer in the form of points and lines through the wireless transmitting device and the wireless receiving device. At the same time, the rolling intensity of different piezoelectric generators is also displayed on the laptop computer.

[0008] Furthermore, the probe is composed of a catheter, a thimble, an adjusting bolt and a spring. The catheter is in the shape of a circular tube and is vertically fixed at one end of the support rod away from the large-span steel structure. The thimble is slidably mounted on the lower part of the catheter, the adjusting bolt is threadedly mounted on the upper part of the guide rail, and the spring is mounted on the middle part of the catheter. The upper end of the spring abuts against the lower surface of the adjusting bolt, and the lower end abuts against the upper surface of the thimble.

[0009] Furthermore, a plurality of vertical slideways are arranged in a circumferential array at the lower part of the conduit, and a sliding block corresponding to the slideway is arranged in a circumferential array at the upper end of the ejector pin.

[0010] Furthermore, the lower end of the ejector pin is in an outwardly convex hemispherical shape.

[0011] Furthermore, the support rod is arranged horizontally, and the length of the support rod is greater than the length of the coordinate plate.

[0012] Furthermore, a magnet layer for fixedly connecting with the sliding beam is fixedly arranged on the lower surface of the coordinate plate.

[0013] Furthermore, the piezoelectric generator includes a substrate, a lower electrode, a solid flexible composite film, an upper electrode and a polyimide film which are bonded sequentially from bottom to top.

[0014] Furthermore, the substrate is a flexible polyimide substrate.

[0015] Furthermore, the lower electrode and the upper electrode are both copper tapes.

[0016] The beneficial effects of the present invention are:

[0017] 1. The piezoelectric generator of the present invention generates electrical energy and electrical signals from the mechanical force generated by the probe and stores the electrical energy in a battery to power a wireless transmitter. The position of the piezoelectric generator where the probe passes and the electrical signal generated by the piezoelectric generator are sent to a laptop computer through the wireless transmitter. The laptop computer detects and analyzes the electrical signal to obtain the walking path of the probe and the height of the piezoelectric generator on the path. The present invention does not require an external power supply, which reduces costs and reduces the burden of equipment maintenance. The present invention achieves synchronization and accuracy of sliding construction, ensures the installation accuracy of steel structures, is easy to operate, reduces errors in conventional measurement and the disadvantages of being unable to measure angles, greatly improves construction efficiency and improves the accuracy of steel structure construction.

[0018] 2. The piezoelectric generator prepared by the present invention is a flexible device, which is easy to manufacture, low in cost and easy to use.

[0019] 3. By analyzing the strength of the electrical signal generated by the piezoelectric generator on the probe sliding path, the height difference of each piezoelectric generator is obtained, so as to determine whether the sliding beam is in a horizontal state, further ensuring the accuracy of the steel structure installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a structural schematic diagram of a dynamic measuring tool for high-altitude sliding deviation of a large-span steel structure.

[0021] Figure 2 The present invention is a front view of a dynamic measuring tool for measuring high-altitude sliding deviation of a large-span steel structure.

[0022] Figure 3 It is a right view of a dynamic measuring tool for high-altitude sliding deviation of a large-span steel structure according to the present invention.

[0023] Figure 4 The present invention is a structural cross-sectional view of a probe of a dynamic measuring tool for measuring high-altitude sliding deviation of a large-span steel structure.

[0024] Figure 5 The invention is a schematic structural diagram of a ejector pin of a dynamic measuring tool for measuring high-altitude sliding deviation of a large-span steel structure.

[0025] Figure 6 The present invention is a schematic structural diagram of a coordinate plate of a dynamic measuring tool for high-altitude sliding deviation of a large-span steel structure.

[0026] Figure 7 The present invention is a schematic structural diagram of a piezoelectric generator used as a dynamic measurement tool for high-altitude sliding deviation of a large-span steel structure.

[0027] Figure 8 The present invention is a schematic diagram of electrical connections of a dynamic measuring tool for measuring high-altitude sliding deviation of a large-span steel structure.

[0028] The numbers in the accompanying drawings are: 1 is a metering frame, 2 is a coordinate plate, 3 is a support rod, 4 is a probe, 5 is a wireless receiving device, 6 is a laptop computer, 201 is a shell, 202 is a piezoelectric generator, 203 is a wireless transmitting device, 204 is a battery, 205 is a magnet layer, 301 is a catheter, 302 is a ejector pin, 303 is an adjusting bolt, 304 is a spring, 2021 is a substrate, 2022 is a lower electrode, 2023 is a flexible composite film, 2024 is an upper electrode, and 2025 is a polyimide film. DETAILED DESCRIPTION

[0029] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 to Figure 8As shown, a dynamic measurement tool for high-altitude sliding deviation of a large-span steel structure comprises a measurement frame 1 fixedly arranged on the large-span steel structure, a coordinate plate 2 fixedly arranged on the upper surface of the sliding beam, and an external mobile terminal. The measurement frame 1 is composed of a support rod 3 and a probe 4. One end of the support rod 3 is fixedly arranged on the large-span steel structure, and the other end is fixedly provided with a vertical probe 4. The lower end of the probe 4 abuts against the upper surface of the coordinate plate 2.

[0031] The coordinate plate 2 comprises a shell 201, a piezoelectric generator 202, a wireless transmitter 203 and a battery 204. The shell 201 is a hollow rectangular flat plate shell 201. A plurality of piezoelectric generators 202 are arranged in an array on the upper surface of the shell 201. The wireless transmitter 203 and the battery 204 are fixedly arranged in the shell 201. The piezoelectric generator 202 is connected to the wireless transmitter 203 and the battery 204.

[0032] The mobile terminal is composed of a wireless receiving device 5 and a laptop computer 6 connected together. When the large-span steel structure slides relative to the sliding beam, the lower end of the probe 4 rolls over the piezoelectric generator 202 on the coordinate plate 2. The sliding path of the probe 4 is displayed on the laptop computer 6 in the form of points and lines through the wireless transmitting device 203 and the wireless receiving device 5. At the same time, the rolling strength of different piezoelectric generators 202 is also displayed on the laptop computer 6.

[0033] The wireless transmitting device 203 and the wireless receiving device 5 use one or more of wireless Bluetooth transmission, GPRS wireless transmission and 485 wireless transmission.

[0034] The probe 4 is composed of a catheter 301, a pin 302, an adjusting bolt 303 and a spring 304. The catheter 301 is in the shape of a circular tube. The catheter 301 is vertically fixed at one end of the support rod 3 away from the large-span steel structure. The pin 302 is slidably fitted on the lower part of the catheter 301, the adjusting bolt 303 is threadedly fitted on the upper part of the guide rail, and the spring 304 is fitted on the middle part of the catheter 301. The upper end of the spring 304 abuts against the lower surface of the adjusting bolt 303, and the lower end abuts against the upper surface of the pin 302.

[0035] A plurality of vertical slideways are arranged in a circumferential array at the lower part of the conduit 301 , and a sliding block corresponding to the slideway is arranged in a circumferential array at the upper end of the ejector pin 302 .

[0036] The lower end of the ejector pin 302 is in an outwardly convex hemispherical shape.

[0037] The support rod 3 is arranged horizontally, and the length of the support rod 3 is greater than the length of the coordinate plate 2 .

[0038] A magnet layer 205 for fixedly connecting with the sliding beam is fixedly arranged on the lower surface of the coordinate plate 2 .

[0039] The piezoelectric generator 202 includes a substrate 2021, a lower electrode 2022, a solid flexible composite film 2023, an upper electrode 2024 and a polyimide film 2025 which are bonded sequentially from bottom to top.

[0040] The substrate 2021 is a flexible polyimide substrate.

[0041] The lower electrode 2022 and the upper electrode 2024 are both copper tapes.

[0042] When the piezoelectric generator 202 receives a certain external pressure, its solid flexible composite film 2023 is deformed, and a piezoelectric potential is generated inside it due to the strain. Due to the existence of induced charge, this piezoelectric field will generate a potential difference on the surface of the upper electrode 2024 and the lower electrode 2022. This potential difference will cause the electrons driving the external circuit to flow from one end to the other end of the electrode, thereby forming a current until the electrons accumulated on its electrode reach a balance with the piezoelectric field. When the external pressure disappears, the potential difference formed by its piezoelectric field will disappear, and the electrons accumulated on one electrode will flow back, thus forming an AC current signal. In actual use, due to the pressure generated when the ejector pin 302 passes through and stays on the piezoelectric generator 202, the piezoelectric generator 202 generates a voltage signal between the upper electrode 2024 and the lower electrode 2022. The piezoelectric generator 202 prepared by this method has the advantages of good mechanical properties and high voltage output, and can maintain stable operation under large strain conditions.

[0043] During measurement, the metering frame 1 is fixed on one side of the long-span steel structure, and then the coordinate plate 2 is placed on the sliding beam and located below the metering frame 1. The coordinate plate 2 is moved so that the coordinate plate 2 is away from the piezoelectric generator 202 in the middle of one end of the long-span steel structure and is located directly below the ejector pin 302. The adjusting bolt 303 is rotated so that the lower end of the ejector pin 302 is against the piezoelectric generator 202 so that the piezoelectric generator 202 generates electrical energy. At this time, the long-span steel structure is slid on the sliding beam, and the metering frame 1 moves synchronously with the long-span steel structure. The coordinate plate 2 is adsorbed on the sliding beam through the magnet layer 205 and remains stationary. The ejector pin 302 moves with the metering frame 1 to roll over different piezoelectric generators 202. When the piezoelectric generator 202 is rolled over, an electrical signal is generated and sent to the laptop computer 6. The laptop computer 6 processes and records the electrical signal generated by the piezoelectric generator 202, and depicts the sliding trajectory of the long-span steel structure in a multi-point line manner, and gives the forward distance and angle deviation of the long-span steel structure when sliding.

[0044] When the ejector pin 302 rolls over the piezoelectric generator 202, when the sliding beam and the coordinate plate 2 are in a horizontal state, the height of the ejector pin 302 remains consistent, the pressure on the piezoelectric generator 202 is equal, and the intensity of the electrical signal it emits is also equal; when the sliding beam and the coordinate plate 2 are tilted, the ejector pin 302 will expand and contract with the sliding of the large-span steel structure. At this time, due to the different compression amounts of the spring 304, the pressure of the ejector pin 302 on the piezoelectric generator 202 will also change, and the intensity of the electrical signal emitted by the piezoelectric generator 202 will also be different. The height difference between different piezoelectric generators 202 can be obtained based on the difference in the electrical signals, and the inclination of the sliding beam can be obtained, thereby judging whether the sliding beam is in a horizontal state, further ensuring the accuracy of the steel structure installation.

[0045] The piezoelectric generator 202 of the present invention generates electrical energy and electrical signals from the mechanical force generated by the probe 4 and stores the electrical energy in the storage battery 204 to power the wireless transmitter 203, and the position of the piezoelectric generator 202 where the probe 4 passes and the electrical signal generated by the piezoelectric generator 202 are sent to the laptop computer 6 through the wireless transmitter 203. The laptop computer 6 detects and analyzes the electrical signal to obtain the walking path of the probe 4 and the height of the piezoelectric generator 202 on the path. The present invention does not require an external power supply, which reduces costs and reduces the burden of equipment maintenance. The present invention achieves the synchronization and accuracy of sliding construction, ensures the installation accuracy of the steel structure, is easy to operate, reduces the error of conventional measurement and the disadvantage of being unable to measure angles, greatly improves construction efficiency, and improves the accuracy of steel structure construction. The piezoelectric generator 202 prepared by the present invention is a flexible device, which is simple to manufacture, low in cost, and easy to use.

[0046] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0047] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structures, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A dynamic measurement tool for high-altitude sliding deviation of a large-span steel structure, comprising a measurement frame (1) fixedly arranged on the large-span steel structure, a coordinate plate (2) fixedly arranged on the upper surface of a sliding beam, and an external mobile terminal, characterized in that: The metering frame (1) is composed of a support rod (3) and a probe (4); one end of the support rod (3) is fixedly arranged on a large-span steel structure, and the other end is fixedly arranged with a vertical probe (4); the lower end of the probe (4) abuts against the upper surface of the coordinate plate (2); The coordinate plate (2) comprises a shell (201), a piezoelectric generator (202), a wireless transmitting device (203) and a storage battery (204); the shell (201) is a hollow rectangular flat plate shell (201); a plurality of piezoelectric generators (202) are arranged in an array on the upper surface of the shell (201); the wireless transmitting device (203) and the storage battery (204) are fixedly arranged in the shell (201); and the piezoelectric generator (202) is connected to the wireless transmitting device (203) and the storage battery (204); The mobile terminal is composed of a wireless receiving device (5) and a laptop computer (6) connected together. When the large-span steel structure slides relative to the sliding beam, the lower end of the probe (4) rolls over the piezoelectric generator (202) on the coordinate plate (2). The sliding path of the probe (4) is displayed on the laptop computer (6) in the form of points and lines through the wireless transmitting device (203) and the wireless receiving device (5). At the same time, the rolling strength of different piezoelectric generators (202) is also displayed on the laptop computer (6).

2. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 1, characterized in that: The probe (4) is composed of a guide tube (301), a push pin (302), an adjusting bolt (303) and a spring (304); the guide tube (301) is in the shape of a circular tube; the guide tube (301) is vertically fixedly arranged at one end of the support rod (3) away from the large-span steel structure; the push pin (302) is slidably mounted on the lower part of the guide tube (301); the adjusting bolt (303) is threadedly mounted on the upper part of the guide rail; the spring (304) is mounted on the middle part of the guide tube (301); the upper end of the spring (304) abuts against the lower surface of the adjusting bolt (303) and the lower end abuts against the upper surface of the push pin (302).

3. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 2, characterized in that: A plurality of vertical slideways are arranged in a circumferential array at the lower part of the conduit (301), and a sliding block corresponding to the slideway is arranged in a circumferential array at the upper end of the ejector pin (302).

4. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 2, characterized in that: The lower end of the ejector pin (302) is in an outwardly convex hemispherical shape.

5. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 1, characterized in that: The support rod (3) is arranged horizontally, and the length of the support rod (3) is greater than the length of the coordinate plate (2).

6. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 1, characterized in that: A magnet layer (205) for fixedly connecting to the sliding beam is fixedly arranged on the lower surface of the coordinate plate (2).

7. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 1, characterized in that: The piezoelectric generator (202) comprises a substrate (2021), a lower electrode (2022), a solid flexible composite film (2023), an upper electrode (2024), and a polyimide film (2025) bonded sequentially from bottom to top.

8. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 7, characterized in that: The substrate (2021) is a flexible polyimide substrate.

9. A dynamic measurement tool for high-altitude sliding deviation of large-span steel structures according to claim 7, characterized in that: The lower electrode (2022) and the upper electrode (2024) are both copper tapes.

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