Steel truss beam temperature automatic acquisition device

Abstract

The utility model belongs to steel truss temperature measuring instrument technical field, especially relates to a kind of steel truss temperature automatic acquisition device.A kind of steel truss temperature automatic acquisition device, including temperature measuring instrument main body, temperature measuring instrument main body front end surface is equipped with panel, panel is equipped with data display screen, first temperature measuring hole, reset key and switch button in proper order, the panel outside of the rear end surface of temperature measuring instrument main body is equipped with magnetic suction bottom plate, magnetic suction bottom plate is equipped with louvre and second temperature measuring hole, temperature measuring instrument main body inside is equipped with internal temperature measuring equipment fixed plate and cooling fan fixing bracket, internal temperature measuring equipment fixed plate is fixed with PCB board and lithium cell, cooling fan fixing bracket is equipped with cooling fan, the panel of the front end surface below data display screen is equipped with multiple adjustment buttons, infrared temperature measuring sensor is respectively equipped in first temperature measuring hole and second temperature measuring hole.The utility model realizes the quick installation of device by magnetic suction bottom plate, and long time, continuous temperature detection to existing steel truss can be realized.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel truss temperature measuring instruments, and specifically relates to an automatic temperature acquisition device for steel truss beams. Background Technology

[0002] For steel truss bridges, especially complex three-truss bridges, the construction precision directly determines the bridge's alignment, internal force distribution, and long-term operational safety and durability. Among numerous environmental factors, temperature variation is one of the most critical, active, and uncontrollable factors affecting construction precision. Steel exhibits significant thermal expansion and contraction characteristics, with a linear expansion coefficient of approximately [missing information]. This means that a 100-meter-long member can change in length by up to 36 millimeters under a temperature difference of 30°C. For large-span, high-precision bridge engineering, this level of deformation cannot be ignored.

[0003] Temperature effects have a profound impact on all aspects of steel truss bridge construction: 1. Member manufacturing and pre-assembly: If manufacturing in the factory and pre-assembly on the ground are not carried out at standard temperatures or without temperature correction, the actual processed length of the members will deviate from the design value. This deviation will be amplified during subsequent high-altitude installation, leading to splicing difficulties and even forcing on-site hole enlargement or forceful assembly, thereby introducing unintended initial stresses into the structure and jeopardizing structural safety. 2. High-altitude installation and splicing: A three-truss bridge consists of three parallel trusses connected by cross bracing and a bridge deck system, requiring extremely high synchronicity and geometric symmetry between different trusses. Under solar radiation, the bridge structure will exhibit an uneven temperature field (e.g., significant temperature differences between the sunlit and shaded sides, and between the upper and lower chords), causing asynchronous and asymmetrical deformation of the three main trusses and even different parts of the same truss. This can lead to misalignment of bolt holes when pre-manufactured members are joined, making it difficult to install splice plates smoothly, severely delaying the construction period and affecting quality. 3. Closure Phase: This is the stage with the most stringent temperature control requirements. The width of the closure joint changes in real time with temperature variations. If the closure is performed at an inappropriate time, or if the actual temperature and its variation at the closure joint are not accurately grasped, it may result in the inability to install the closure members, or after forced closure, the structure may experience enormous additional internal forces (temperature stress) when the temperature returns to the design reference temperature, greatly deviating from the designed bridge state and leaving long-term safety hazards for the bridge.

[0004] Therefore, using a thermometer to conduct full-process, real-time, and accurate temperature monitoring of steel trusses is of paramount importance. Currently, temperature monitoring is primarily conducted on-site by construction workers using handheld infrared thermometers. This manual method is not only time-consuming, labor-intensive, and inefficient, but also fails to achieve continuous, synchronous, and real-time temperature monitoring. The data suffers from significant gaps in both time and space, failing to meet the demands of high-precision construction analysis. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide an automatic temperature acquisition device for steel trusses. This acquisition device achieves rapid installation through a magnetic base plate, solving the problem of existing infrared thermal imaging thermometers requiring long-term handheld operation. It enables long-term, continuous temperature monitoring of existing steel trusses.

[0006] The technical solution of this utility model is as follows: an automatic temperature acquisition device for steel truss beams, comprising a thermometer body, the thermometer body being a shell structure, a panel on the front end of the thermometer body, a data display screen, a first temperature measuring hole, a reset button, and a switch button arranged sequentially on the panel, a magnetic base plate on the outer side of the rear end of the thermometer body, a heat dissipation hole and a second temperature measuring hole on the magnetic base plate, an internal temperature measuring device fixing plate and a cooling fan fixing bracket inside the thermometer body, a PCB board and a lithium battery fixed on the internal temperature measuring device fixing plate, a cooling fan on the cooling fan fixing bracket, multiple adjustment buttons on the front panel below the data display screen, infrared temperature sensors respectively installed in the first and second temperature measuring holes, and the infrared temperature sensors, lithium battery, cooling fan, data display screen, reset button, and switch button being connected to the PCB board via circuits.

[0007] The thermometer body has a data transmission Type-C port and a power port on its side. The power port is connected to the lithium battery, and the edges of the power port and the data transmission Type-C port are provided with dustproof rings.

[0008] The thermometer body has multiple side heat dissipation holes on its side.

[0009] The cooling fan is located inside the body of the thermometer, directly opposite the heat dissipation hole.

[0010] The front panel of the thermometer body is provided with first fixing screws around its perimeter, the rear panel of the thermometer body is provided with second fixing screws around its perimeter, and the rear panel of the thermometer body is provided with a third fixing screw in the middle position. The PCB board inside the thermometer body is fixedly connected to the internal temperature measuring device mounting plate by the first fixing screw, the second fixing screw and the third fixing screw.

[0011] Each of the first fixing screw, the second fixing screw, and the third fixing screw is fitted with a buffer washer.

[0012] The cooling fan mounting bracket is located above the internal temperature measuring device mounting plate. The cooling fan mounting bracket is provided with a fourth fixing screw around its perimeter. The fourth fixing screw passes through the panel on the rear end face of the thermometer body and is fixedly connected to the magnetic base plate.

[0013] The circuit board is a PCB board, which integrates an infrared temperature measurement module, a data processing module, a data storage module, and an Internet of Things communication module. The modules are connected by circuits to realize data acquisition, processing, storage, and transmission.

[0014] The technical advantages of this utility model are as follows: 1. This utility model achieves rapid installation of the device through a magnetic base plate, solving the problem of existing infrared thermal imaging thermometers requiring long-term handheld operation, and enabling long-term, continuous temperature monitoring of existing steel trusses. 2. This utility model integrates a PCB board and lithium battery through an internal temperature measuring device fixing plate, and is equipped with a cooling fan, resulting in a compact structure. During operation, the device achieves internal temperature control to prevent overheating, ensuring long-term stable operation while rapidly and promptly collecting temperature data. 3. This utility model uses a dedicated temperature measuring port to detect the ambient temperature and compare it with the measured temperature of the steel truss, ensuring measurement accuracy.

[0015] The following will provide further explanation in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an automatic temperature acquisition device for steel truss beams according to this utility model.

[0017] Figure 2 These are the top and bottom views of an automatic temperature acquisition device for steel truss beams according to this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the magnetic base of this utility model.

[0019] Figure 4 These are the top and bottom views of the magnetic base of this utility model.

[0020] Figure 5 This is a schematic diagram of the internal structure of the magnetic base of this utility model.

[0021] Figure 6 This is a schematic diagram of the internal structure of the cooling fan of this utility model.

[0022] Reference numerals: 1-Switch button; 2-First fixing screw; 3-Reset button; 4-Data display screen; 5-First temperature measuring hole; 6-Adjustment button; 7-Data transmission type-C port; 8-Heat dissipation hole; 9-Power port; 10-Thermometer body; 11-Magnetic base plate; 12-Second temperature measuring hole; 13-Second fixing screw; 14-Cooling fan; 15-Third fixing screw; 16-Internal temperature measuring device mounting plate; 17-Cooling fan mounting bracket; 18-Fourth fixing screw; 19-Side heat dissipation hole. Detailed Implementation Example 1

[0023] like Figures 1-6 As shown, an automatic temperature acquisition device for steel truss beams includes a thermometer body 10, which is a shell structure. The front end of the thermometer body 10 has a panel with a data display screen 4, a first temperature measuring hole 5, a reset button 3, and a power switch 1 arranged sequentially on the panel. A magnetic base plate 11 is provided on the outer side of the rear end panel of the thermometer body 10. The magnetic base plate 11 has heat dissipation holes 8 and a second temperature measuring hole 12. Inside the thermometer body 10, there is an internal temperature measuring device fixing plate 16 and a cooling fan fixing bracket 17. A PCB board and a lithium battery are fixed on the internal temperature measuring device fixing plate 16. A cooling fan 14 is mounted on the cooling fan fixing bracket 17. Multiple adjustment buttons 6 are provided on the front end panel below the data display screen 4. Infrared temperature sensors are respectively installed in the first temperature measuring hole 5 and the second temperature measuring hole 12. The infrared temperature sensors, lithium battery, cooling fan 14, data display screen 4, reset button 3, and power switch 1 are connected to the PCB board via circuits.

[0024] In practical use, when temperature monitoring is required during the construction of steel trusses, the automatic temperature acquisition device for steel trusses is attached to the part of the steel truss to be measured via the magnetic base plate 11. After powering on, the device is started by pressing the switch button 1. The temperature measurement parameters are set by adjusting the button 6. The infrared temperature measurement module on the PCB board collects the real-time temperature of the steel truss surface through the infrared temperature sensor in the second temperature measurement hole 12, and the infrared temperature sensor in the first temperature measurement hole 5 collects the real-time temperature of the surrounding environment. The data is processed by the data processing module and displayed on the data display screen 4, and simultaneously stored in the internal storage module. The cooling fan 14 works continuously during temperature acquisition to ensure that the internal temperature of the thermometer body 10 is within the set range, ensuring the accuracy of the collected data and the long-term reliability of the equipment. After the acquisition is completed, the historical data is exported to a computer via the data transmission Type-C port 7, or remote monitoring is achieved through the IoT communication module on the PCB board. This invention enables quick installation of the device through the magnetic base plate, solving the problem of the need for operators to hold the device for extended periods during the use of existing infrared thermal imaging thermometers, and enabling long-term, continuous temperature monitoring of existing steel trusses. This invention integrates a PCB board and a lithium battery through an internal temperature measuring device mounting plate, and is equipped with a cooling fan. The structure is compact, and the device can control the internal temperature during operation to prevent overheating. The temperature measuring instrument can quickly and timely collect temperature data and ensure long-term stable operation. Example 2

[0025] Based on Embodiment 1, in this embodiment, preferably, the side of the thermometer body 10 is provided with a data transmission type-C port 7 and a power port 9, the power port 9 is connected to the lithium battery, and the edges of the power port 9 and the data transmission type-C port 7 are provided with dustproof rings.

[0026] In actual use, the thermometer body 10 is provided with a data transmission type-C port 7 and a power port 9 on its side. The power port 9 is connected to the lithium battery and is used to charge the lithium battery. The edges of the power port 9 and the data transmission type-C port 7 are provided with dustproof rings to ensure the dustproof effect of the instrument. Example 3

[0027] Based on Embodiment 1 or Embodiment 2, in this embodiment, preferably, the thermometer body 10 is provided with a plurality of side heat dissipation holes 19 on its side.

[0028] In actual use, the thermometer body 10 is provided with multiple side heat dissipation holes 19 on its side for heat dissipation of the PCB board inside the thermometer body 10, ensuring stable operation. Example 4

[0029] Based on Embodiment 1 or Embodiment 3, in this embodiment, preferably, the cooling fan 14 is located inside the body 10 of the thermometer directly opposite the heat dissipation hole 8.

[0030] In actual use, the cooling fan 14 is located inside the thermometer body 10, directly opposite the heat dissipation hole 8, to promote airflow and exchange inside the thermometer body 10 and ensure heat dissipation effect. Example 5

[0031] Based on Embodiment 1 or Embodiment 4, in this embodiment, preferably, the front panel of the thermometer body 10 is provided with first fixing screws 2 around its perimeter, the rear panel of the thermometer body 10 is provided with second fixing screws 13 around its perimeter, and the rear panel of the thermometer body 10 is provided with a third fixing screw 15 in the middle position. The PCB board inside the thermometer body 10 is fixedly connected to the internal temperature measuring device fixing plate 16 through the first fixing screws 2, the second fixing screws 13 and the third fixing screws 15.

[0032] In actual use, the PCB board inside the thermometer body 10 is fixedly connected to the internal temperature measuring device fixing plate 16 by the first fixing screw 2, the second fixing screw 13 and the third fixing screw 15. Fixing screws are provided on the front panel and the rear panel of the thermometer body 10 to ensure that the installation is firm. Example 6

[0033] Based on Embodiment 1 or Embodiment 5, in this embodiment, preferably, buffer pads are respectively fitted on the first fixing screw 2, the second fixing screw 13 and the third fixing screw 15.

[0034] In actual use, buffer pads are respectively fitted on the first fixing screw 2, the second fixing screw 13 and the third fixing screw 15. The buffer pads reduce the impact of construction vibration on the circuit board. Example 7

[0035] Based on Embodiment 1, in this embodiment, preferably, the cooling fan mounting bracket 17 is located above the internal temperature measuring device mounting plate 16, and the cooling fan mounting bracket 17 is provided with fourth fixing screws 18 around its perimeter. The fourth fixing screws 18 pass through the panel on the rear end face of the thermometer body 10 and are fixedly connected to the magnetic base plate 11.

[0036] In actual use, the fourth fixing screw 18 passes through the panel on the rear end face of the thermometer body 10 and is fixedly connected to the magnetic base plate 11. The magnetic base plate 11 and the cooling fan mounting bracket 17 are both connected to the thermometer body 10 by fixing bolts 18, resulting in a compact structure. Example 8

[0037] Based on Embodiment 1 or Embodiment 7, in this embodiment, preferably, the circuit board is a PCB board, which integrates an infrared temperature measurement module, a data processing module, a data storage module and an Internet of Things communication module. The modules are connected by circuits to realize data acquisition, processing, storage and transmission.

[0038] In practical use, the PCB board integrates an infrared temperature measurement module, a data processing module, a data storage module, and an IoT communication module. The modules are connected by circuits to realize data acquisition, processing, storage, and transmission. The data processing module analyzes temperature fluctuations during temperature measurement, and the data storage module can store temperature data locally to ensure that the data is not lost when the device is powered off or the network is abnormal, thus ensuring the continuity and security of the monitoring data.

[0039] The working principle of this utility model is as follows: S1: When temperature monitoring is required during the construction of the steel truss, the automatic temperature acquisition device of the steel truss is attached to the part of the steel truss to be measured by the magnetic base plate 11. After the power is turned on, press the switch button 1 to start the device. S2: The temperature measurement parameters are set by adjusting button 6. The infrared temperature measurement module on the PCB board collects the real-time temperature of the steel truss surface through the infrared temperature sensor in the second temperature measurement hole 12. The infrared temperature sensor in the first temperature measurement hole 5 collects the real-time temperature of the surrounding environment. The data is processed by the data processing module and displayed on the data display screen 4, and simultaneously stored in the internal storage module. The cooling fan 14 works continuously during the temperature acquisition period to ensure that the internal temperature of the thermometer body 10 is within the set range, ensuring the accuracy of the collected data and the reliability of the long-term operation of the equipment. S3: After the data collection is completed, the historical data can be exported by connecting to a computer via the data transmission Type-C port 7, or remote monitoring can be achieved via the IoT communication module on the PCB board.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic temperature acquisition device for steel truss beams, characterized in that: The device includes a thermometer body (10), which is a shell structure. The front end of the thermometer body (10) is provided with a panel, on which a data display screen (4), a first temperature measuring hole (5), a reset button (3), and a power button (1) are arranged in sequence. The rear end of the thermometer body (10) is provided with a magnetic base plate (11) on the outer side of the panel. The magnetic base plate (11) is provided with a heat dissipation hole (8) and a second temperature measuring hole (12). The thermometer body (10) is provided with an internal temperature measuring device fixing plate (16) and a cooling fan fixing bracket inside. (17) A PCB board and a lithium battery are fixed on the internal temperature measuring device fixing plate (16). A cooling fan (14) is provided on the cooling fan fixing bracket (17). Multiple adjustment buttons (6) are provided on the front panel below the data display screen (4). Infrared temperature sensors are respectively provided in the first temperature measuring hole (5) and the second temperature measuring hole (12). The infrared temperature sensor, lithium battery, cooling fan (14), data display screen (4), reset button (3) and switch button (1) are respectively connected to the PCB board through circuit.

2. The automatic temperature acquisition device for steel truss beams according to claim 1, characterized in that: The thermometer body (10) has a data transmission type-C port (7) and a power port (9) on its side. The power port (9) is connected to a lithium battery. The edges of the power port (9) and the data transmission type-C port (7) are provided with dustproof rings.

3. The automatic temperature acquisition device for steel truss beams according to claim 1, characterized in that: The thermometer body (10) has multiple side heat dissipation holes (19) on its side.

4. The automatic temperature acquisition device for steel truss beams according to claim 1, characterized in that: The cooling fan (14) is located inside the body (10) of the thermometer, directly opposite the heat dissipation hole (8).

5. The automatic temperature acquisition device for steel truss beams according to claim 1, characterized in that: The front panel of the thermometer body (10) is provided with first fixing screws (2) around its perimeter, the rear panel of the thermometer body (10) is provided with second fixing screws (13) around its perimeter, and the rear panel of the thermometer body (10) is provided with third fixing screws (15) in the middle position. The PCB board inside the thermometer body (10) is fixedly connected to the internal temperature measuring device fixing plate (16) by the first fixing screws (2), the second fixing screws (13) and the third fixing screws (15).

6. The automatic temperature acquisition device for steel truss beams according to claim 5, characterized in that: The first fixing screw (2), the second fixing screw (13) and the third fixing screw (15) are respectively fitted with buffer pads.

7. The automatic temperature acquisition device for steel truss beams according to claim 1, characterized in that: The cooling fan mounting bracket (17) is located above the internal temperature measuring device mounting plate (16). The cooling fan mounting bracket (17) is provided with a fourth fixing screw (18) around its perimeter. The fourth fixing screw (18) passes through the panel on the rear end face of the thermometer body (10) and is fixedly connected to the magnetic base plate (11).

8. The automatic temperature acquisition device for steel truss beams according to claim 1, characterized in that: The circuit board is a PCB board, which integrates an infrared temperature measurement module, a data processing module, a data storage module, and an Internet of Things communication module. The modules are connected by circuits to realize data acquisition, processing, storage, and transmission.

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