Moving wind speed detection device for highway tunnel construction

Abstract

The utility model discloses a moving wind speed detection device for expressway tunnel construction, which comprises a bottom plate with universal wheels at the bottom, a turntable is rotatably arranged in the middle of the upper surface of the bottom plate, a vertical column is arranged on the turntable, a cross rod is rotatably arranged at the top of the vertical column, a mounting seat is arranged at one end of the cross rod, and the mounting seat is connected with the turntable. An ultrasonic anemograph is rotationally arranged on the mounting base, and an adjusting piece for controlling the transverse rod to rotate up and down is arranged on the rotating disc. According to the moving wind speed detection device for highway tunnel construction, a dual-drive mode of the electric push rod and the traction wire is adopted, accurate lifting of the ultrasonic anemograph within the range of 0.5-6 meters can be achieved, detection of wind speeds of different parts from an arch crown to a side wall is achieved, detection blind areas are eliminated, operation safety is high, the device can be pushed to any section, and the detection efficiency is improved. The device adapts to dynamic change of a tunneling face, can match construction progress and is high in use flexibility.

Description

Technical Field

[0001] This utility model relates to the field of highway tunnel construction technology, specifically a mobile wind speed detection device for highway tunnel construction. Background Technology

[0002] The design of ventilation systems for extra-long highway tunnels needs to comprehensively consider factors such as the construction environment, tunnel length, geological conditions, and energy efficiency. The main ventilation methods include mechanical ventilation, auxiliary passage ventilation, and intelligent ventilation systems. The ventilation system is a core element in ensuring operational safety. In the construction of extra-long highway tunnels, wind speed detection is crucial for ensuring construction safety and improving ventilation efficiency.

[0003] Traditional wind speed detection mainly relies on fixed sensors (such as thermal anemometers) or handheld devices, which have the following problems: 1. Fixed sensors can only monitor a single height (such as the arch waist), and cannot cover the arch top (light gas accumulation area) and sidewalls (dust settling area), resulting in a large detection blind spot; 2. Handheld devices require manual climbing for detection, which is inefficient and dangerous (such as in the post-blasting environment) and lacks flexibility; 3. Fixed sensor networks cannot be dynamically adjusted as the tunnel face advances, making it difficult to match the construction progress.

[0004] Therefore, this application provides a mobile wind speed detection device for highway tunnel construction to solve the above problems. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome existing defects and provide a mobile wind speed detection device for highway tunnel construction. It employs a dual-drive system of electric push rod and traction wire, enabling precise lifting and lowering of the ultrasonic anemometer within a 0.5-6 meter range. This allows for the detection of wind speeds at different locations from the arch to the sidewalls, eliminating blind spots, ensuring high operational safety, and allowing the device to be moved to any cross-section to adapt to dynamic changes in the tunnel face. It can match the construction schedule, offering high flexibility and effectively solving the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mobile wind speed detection device for highway tunnel construction, comprising a base plate with casters at the bottom, a turntable rotatably mounted on the center of the upper surface of the base plate, a column mounted on the turntable, a crossbar rotatably mounted on the top of the column, a mounting base at one end of the crossbar, and an ultrasonic anemometer rotatably mounted on the mounting base, and an adjustment component for controlling the up-and-down rotation of the crossbar on the turntable.

[0007] As a preferred embodiment of this invention, the ultrasonic anemometer is provided with a counterweight at its bottom.

[0008] As a preferred embodiment of this utility model, the adjusting component includes an electric push rod mounted on a turntable, and a connecting plate is rotatably provided on the top of the electric push rod. The connecting plate has a hollow structure and is provided with a control component connected to the crossbar.

[0009] As a preferred technical solution of this utility model, the control component includes a winding wheel rotatably disposed at the lower end of the side of the connecting plate. The connecting plate is provided with a servo motor that drives the winding wheel to rotate. A traction wire is wound on the winding wheel, and the traction wire passes through the inner cavity of the connecting plate and is connected to the crossbar.

[0010] As a preferred embodiment of this utility model, the length of the crossbar between the traction wire and the column is less than the length of the crossbar between the column and the ultrasonic anemometer.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model provides a mobile wind speed detection device for highway tunnel construction. It adopts a dual-drive method of electric push rod and traction wire, which enables the ultrasonic anemometer to be accurately raised and lowered within a range of 0.5-6 meters. This allows for the detection of wind speed at different locations from the arch to the sidewall, eliminating blind spots in detection, ensuring high operational safety, and allowing it to be pushed to any cross-section to adapt to dynamic changes in the tunnel face. It can match the construction progress and offers high flexibility in use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0015] In the diagram: 1. Base plate, 2. Turntable, 3. Column, 4. Horizontal bar, 41. Mounting base, 5. Ultrasonic anemometer, 51. Counterweight, 6. Electric push rod, 7. Connecting plate, 8. Winding wheel, 81. Servo motor, 82. Traction wire. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-2This utility model provides a technical solution: a mobile wind speed detection device for highway tunnel construction, including a base plate 1 with universal wheels at the bottom, a turntable 2 rotatably mounted on the middle of the upper surface of the base plate 1, a column 3 mounted on the turntable 2, a crossbar 4 rotatably mounted on the top of the column 3, a mounting base 41 at one end of the crossbar 4, and an ultrasonic anemometer 5 rotatably mounted on the mounting base 41. The turntable 2 is provided with an adjusting component to control the up and down rotation of the crossbar 4. The crossbar 4 can be rotated by the adjusting component, and when the crossbar 4 rotates, it drives the ultrasonic anemometer 5 to move up or down, thereby detecting the wind speed at different heights in the tunnel.

[0018] Furthermore, a counterweight 51 is provided at the bottom of the ultrasonic anemometer 5 to keep it in a vertical position. The ultrasonic anemometer adopts the SM-SDSX5 type ultrasonic anemometer and wind vane, which works by using the ultrasonic time-of-flight method to measure wind speed. The speed of sound in the air is superimposed on the airflow speed in the wind direction. If the direction of ultrasonic wave propagation is the same as the wind direction, its speed will be faster; conversely, its speed will be slower. Therefore, under fixed detection conditions, the speed of ultrasonic wave propagation in the air can correspond to a function of wind speed. The accurate wind speed and wind direction can be obtained through calculation.

[0019] Furthermore, the adjusting component includes an electric push rod 6 mounted on the turntable 2. A connecting plate 7 is rotatably mounted on the top of the electric push rod 6. The connecting plate 7 has a hollow structure and is equipped with a control component that connects to the crossbar 4. The electric push rod 6 can be a Thomson Electrak HD series.

[0020] Furthermore, the control components include a winding wheel 8 rotatably mounted on the lower side of the connecting plate 7. The connecting plate 7 is equipped with a servo motor 81 that drives the winding wheel 8 to rotate. A traction wire 82 is wound on the winding wheel 8, and the traction wire 82 passes through the inner cavity of the connecting plate 7 and is connected to the crossbar 4. The servo motor 81 can be a Panasonic MINAS A6 series. Controlling the servo motor 81 to work causes the servo motor 81 to drive the winding wheel 8 to work, and the winding wheel 8 to unwind the wire. At this time, the crossbar 4 rotates under the action of gravity, and the ultrasonic anemometer 5 moves downward.

[0021] Furthermore, the length of the crossbar 4 between the traction wire 82 and the column 3 is less than the length of the crossbar 4 between the column 3 and the ultrasonic anemometer 5, so that the crossbar 4 is in an asymmetrical offset state, which makes it convenient to adjust the tilt of the crossbar 4 through the traction wire 82.

[0022] In addition, a battery pack and an electrical cabinet with a PLC controller are also installed on the base plate 1. The battery pack can be a lithium iron phosphate battery pack, and the PLC controller is a Siemens S7-1200.

[0023] The ultrasonic anemometer 5 transmits signals to the PLC controller for display. The PLC controller can control the built-in alarm to sound an alarm. In addition, the PLC controller can control the electric push rod 6 and the servo motor 81 to work.

[0024] The ultrasonic anemometer 5, servo motor 81, and electric push rod 6 used in this utility model are all commonly used electronic components in the prior art. Their working methods and circuit structures are well-known technologies and will not be described in detail here.

[0025] When using:

[0026] When it is necessary to control the ultrasonic anemometer 5 to move upward, the electric push rod 6 is shortened. The electric push rod 6 drives the crossbar 4 to rotate through the connecting plate 7. When the crossbar 4 rotates, it drives the ultrasonic anemometer 5 to move upward, thereby detecting the wind speed at the upper position inside the tunnel.

[0027] When it is necessary to control the ultrasonic anemometer 5 to move downward, first control the electric push rod 6 to extend. As mentioned above, the ultrasonic anemometer 5 moves downward. However, due to the limited length of the connecting plate 7, the downward distance of the ultrasonic anemometer 5 is limited. At this time, control the servo motor 81 to work. The servo motor 81 drives the winding wheel 8 to work. The winding wheel 8 releases the wire. At this time, the crossbar 4 rotates under the action of gravity and causes the ultrasonic anemometer 5 to move downward, thereby detecting the wind speed at the lower position inside the tunnel.

[0028] This utility model adopts a dual-drive method of electric push rod 6 and traction wire 82, which can realize the precise lifting and lowering of ultrasonic anemometer within the range of 0.5-6 meters, thereby realizing the detection of wind speed at different parts from the arch to the side wall, eliminating blind spots in detection, ensuring high operational safety, and being able to be pushed to any cross section to adapt to dynamic changes in the tunneling face, match the construction progress, and have high flexibility in use.

[0029] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile wind speed detection device for highway tunnel construction, comprising a bottom plate (1) provided with universal wheels, characterized in that: The upper surface of the bottom plate (1) is provided with a rotating disc (2), the rotating disc (2) is provided with a stand (3), the top of the stand (3) is provided with a horizontal rod (4), one end of the horizontal rod (4) is provided with a mounting seat (41), the mounting seat (41) is provided with an ultrasonic anemometer (5), the rotating disc (2) is provided with an adjusting part for controlling the up-down rotation of the horizontal rod (4).

2. The mobile wind speed detection device for highway tunnel construction according to claim 1, characterized in that: The bottom of the ultrasonic anemometer (5) is provided with a counterweight (51).

3. The mobile wind speed detection device for highway tunnel construction according to claim 1, characterized in that: The adjusting part comprises an electric push rod (6) mounted on the rotating disc (2), the top of the electric push rod (6) is provided with a connecting plate (7), the connecting plate (7) is a hollow structure, and the connecting plate (7) is provided with a control part connected with the horizontal rod (4).

4. The mobile wind speed detection device for highway tunnel construction according to claim 3, characterized in that: The control part comprises a winding wheel (8) rotatably arranged on the side of the connecting plate (7), the connecting plate (7) is provided with a servo motor (81) for driving the rotation of the winding wheel (8), the winding wheel (8) is wound with a traction wire (82), and the traction wire (82) is connected with the horizontal rod (4) through the inner cavity of the connecting plate (7).

5. The mobile wind speed detection device for highway tunnel construction according to claim 4, characterized in that: The length of the horizontal rod (4) between the traction wire (82) and the stand (3) is less than the length of the horizontal rod (4) between the stand (3) and the ultrasonic anemometer (5).

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