Rail car for detecting maximum diameter of tunnel

Abstract

The utility model relates to the technical field of tunnel detection equipment, in particular to a rail car for detecting the maximum diameter of a tunnel, which comprises a moving device, a measuring device is arranged on the moving device, the moving device comprises an I-shaped rack, and the measuring device comprises an upper support and a lower support. The lower support is vertically and fixedly installed in the middle of the upper side of the I-shaped rack, the upper support is vertically and slidably installed in the lower support, a sliding module is installed in the top of the upper support, and a detection assembly used for detecting a tunnel is arranged on the sliding module in a matched mode. According to the utility model, the measurement position can be conveniently replaced, the maximum diameter position of the tunnel can be effectively and accurately detected, the installation position of the target can be accurately positioned, the working efficiency is high, the overall use is flexible, and the carrying is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel detection equipment technical field especially relates to a track car for detecting tunnel maximum diameter. BACKGROUND

[0002] Tunnel convergence survey is a crucial work in tunnel construction and operation process, mainly used for monitoring the deformation and convergence of tunnel surrounding rock in the construction process. Through real-time monitoring of tunnel convergence, the deformation trend and instability of surrounding rock can be found early, and measures can be taken in time to prevent accidents and ensure the safety of construction and later operation. Using total station, laser range finder and other equipment to track and measure the three-dimensional coordinates of the target in the tunnel is a common method for tunnel convergence survey, which has high precision and comprehensive data, and is suitable for complex tunnel terrain. The target installed at the maximum diameter of the tunnel section can better reflect the convergence of the tunnel. At present, the installation position is mainly determined by manual naked eye, and the positioning is not accurate.

[0003] Therefore, we propose a track car for detecting tunnel maximum diameter to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the shortcomings in the prior art and proposes a track car for detecting tunnel maximum diameter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A track car for detecting tunnel maximum diameter, comprising a moving device, the moving device is provided with a measuring device, the moving device comprises an I-shaped rack, the measuring device comprises an upper support and a lower support, the lower support is vertically fixedly installed at the upper side middle part position of the I-shaped rack, the upper support is vertically slidably installed in the inside of the lower support, the top inside of the upper support is installed with a sliding module, and a detection assembly for detecting the tunnel is matched and arranged on the sliding module.

[0007] Preferably, the moving device further comprises four folding arms, the I-shaped rack comprises two cross beams and a vertical beam, the four folding arms are rotatably installed below the two cross beams of the I-shaped rack, the folding arms can be folded and rotated to the direction of the vertical beam of the I-shaped rack, the folding arms can also be unfolded to the position parallel to the cross beams of the I-shaped rack, and a lockable wheel is installed below each of the four folding arms, a handrail is installed above one side cross beam of the I-shaped rack, and the handrail can be folded to the I-shaped rack.

[0008] Preferably, the bottom of the upper support can be fixed with the top of the lower support through a screw.

[0009] Preferably, the sliding module comprises a lifting motor fixedly installed inside the upper support, a threaded screw rod coaxially fixed to the lifting motor, a sliding rail vertically fixed inside the upper support, and a sliding block slidingly arranged on the sliding rail and threadedly connected with the threaded screw rod, and the threaded screw rod is rotatable to drive the sliding block to move.

[0010] Preferably, the detection assembly comprises an execution controller installed on the sliding block, a box body arranged on the execution controller, two laser range finders and an attitude sensor symmetrically installed in the box body, a horizontal motor and a leveling platform arranged on the execution controller, and the box body is installed on the upper side of the leveling platform, the horizontal motor is fixedly connected with the sliding block, and the horizontal motor can control the leveling platform to be absolutely leveled and adjusted through a synchronous transmission device.

[0011] Preferably, the lower support is provided with an interactive control device.

[0012] Preferably, the interactive control device comprises a battery for providing power supply.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The detection assembly is installed on the rail car, so that the replacement of the measurement position is convenient and labor-saving, the two laser range finders can be real-time leveled and controlled, the automatic and accurate detection of the maximum diameter position of the tunnel can be realized, the corresponding position of the target installation can be marked by the red laser of the laser range finder, and the basis is provided for the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by the drawings for the ordinary skilled in the art without any creative labor;

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the first axonometric view of the mobile device in the unfolded state of the utility model;

[0018] Figure 3 It is the second axonometric view of the mobile device in the unfolded state of the utility model;

[0019] Figure 4 It is the first axonometric view of the mobile device in the folded state of the utility model;

[0020] Figure 5 is the second axonometric view of the folding state of the moving device of the utility model;

[0021] Figure 6 is the axonometric view of the stretching state of the measuring device of the utility model;

[0022] Figure 7 is the axonometric view of the contraction state of the measuring device of the utility model;

[0023] Figure 8 is the structural schematic view of the upper support, sliding module and execution controller of the utility model

[0024] Figure 9 is the structural schematic view of the sliding module and execution controller of the utility model

[0025] Figure 10 is the structural schematic view of the execution controller of the utility model

[0026] Figure 11 is the structural schematic view of the lower support and interactive control equipment of the utility model

[0027] Figure 12 is the structural schematic view of the interactive control equipment of the utility model

[0028] Figure 13 is the controller circuit principle block diagram of the utility model.

[0029] In the figure: 1, I-shaped rack; 2, folding arm; 3, lockable wheel; 4, handrail; 5, lower support; 6, interactive control equipment; 7, upper support; 8, sliding module; 9, execution controller; 10, lifting motor; 11, threaded screw; 12, sliding block; 13, slide rail; 14, horizontal motor; 15, synchronous transmission device; 16, leveling platform; 17, execution control unit; 18, box body; 19, drag chain; 20, battery; 21, reel; 22, interactive controller; 23, button; 24, screen; 25, voltage display module. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the components or elements indicated having a specific orientation, being constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] Referring to Figures 1-13 A rail car for detecting the maximum diameter of a tunnel, comprising a moving device and a measuring device, the measuring device is arranged on the moving device, the moving device comprises an I-shaped frame 1, and the measuring device comprises an upper support 7, a lower support 5, an interactive control device 6, an execution controller 9 and a sliding module 8. The lower support 5 is vertically fixedly installed at the upper middle position of the I-shaped frame 1, that is, on the vertical beam of the I-shaped frame 1, and is convenient to disassemble. The upper support 7 is vertically slidably installed in the lower support 5 and can move along the lower support 5 so as to extend out of the lower support 5, the bottom of the upper support 7 can be fixedly connected with the top of the lower support 5 through screws, and the two can be detachably arranged. The interactive control device 6 is located at the bottom of the lower support 5, the sliding module 8 is installed at the top of the upper support 7, and a detection assembly for detecting a tunnel is arranged on the sliding module 8.

[0033] For the above example, those skilled in the art should know that, in the implementation of the above technical solution, the lower support 5 and the upper middle part of the I-shaped frame 1 can be fixedly connected through bolts, that is, the lower support 5 and the I-shaped frame 1 can be detachably separated.

[0034] The moving device comprises four folding arms 2, lockable wheels 3 and handrails 4, the moving device and the I-shaped frame 1 constitute the rail car, the I-shaped frame 1 comprises two horizontal beams and a vertical beam, the four folding arms 2 are rotatably installed below the two horizontal beams of the I-shaped frame 1, that is, two folding arms 2 are symmetrically arranged on one horizontal beam, the folding arms 2 can be folded and rotated towards the vertical beam of the I-shaped frame 1, facilitating transportation, and the folding arms 2 can also be unfolded to a position parallel to the horizontal beam of the I-shaped frame 1 and used for striding on the track in the existing tunnel. The lockable wheels 3 are installed below the four folding arms 2 and used for moving on the track in the existing tunnel, and the handrails 4 are installed above one side horizontal beam of the I-shaped frame 1, facilitating the construction personnel to push the whole to move, that is, the rail car moves. Meanwhile, the handrails 4 can be folded towards the I-shaped frame 1, facilitating transportation.

[0035] The sliding module 8 includes a lifting motor 10, which is fixedly installed inside the upper bracket 7. A threaded screw 11 is coaxially fixed to the lifting motor 10. A slide rail 13 is vertically fixed inside the upper bracket 7, and a slider 12 slides on the slide rail 13. The slider 12 is threadedly connected to the threaded screw 11, and rotation of the threaded screw 11 drives the slider 12 to move. One end of the threaded screw 11 away from the lifting motor 10 is rotatably connected to one end of the slide rail 13. The detection component includes an execution controller 9, which is installed on the slider 12. The execution controller 9 has a housing 18, inside which two laser rangefinders and an attitude sensor are symmetrically installed. The two laser rangefinders correspond to the two sides of the tunnel, namely the left and right laser rangefinders. The execution controller 9 also has a horizontal motor 14 and a leveling platform 16. The housing 18 is installed on the upper side of the leveling platform 16. The horizontal motor 14 is fixedly connected to the slider 12, and the horizontal motor 14 can control the leveling platform 16 for absolute leveling calibration via a synchronous transmission device 15.

[0036] The bottom of the box 18 is also equipped with an execution control unit 17. The execution control unit 17 of the execution controller 9 is connected to two laser rangefinders and attitude sensors inside the box 18 via a serial port. It can receive data and perform calculations to obtain the distance between the two sides of the tunnel.

[0037] An interactive control device 6 is installed at the bottom of the lower bracket 5. The interactive control device 6 includes a battery 20, which provides power. The interactive control device 6 also includes a cable reel 21, an interactive controller 22, buttons 23, a screen 24, and a voltage measurement and display module 25.

[0038] In the above example, those skilled in the art should know that when implementing the above technical solution, the laser rangefinder can emit a red laser, and the red laser can accurately mark the position.

[0039] In the above examples, those skilled in the art should know that when implementing the above technical solutions, the laser rangefinder can also be replaced by a total station or other measuring devices.

[0040] Regarding the above examples, those skilled in the art should understand that, in implementing the above technical solutions, the execution control unit 17 can employ an ESP32S3 processor-integrated MCU chip with 2.4GHz Wi-Fi and Bluetooth 5 (LE) capabilities, supporting long-range mode. The ESP32-S3 is equipped with... 32-bit LX7 dual-core processor with a clock speed of up to 240MHz.

[0041] The execution control unit 17 can be responsible for controlling the motor, i.e. controlling the horizontal motor 14. That is, the execution control unit 17 reads the laser range finder and attitude sensor data through the serial port, and then controls the horizontal motor 14 through data judgment. The lifting motor 10 controls the movement of the execution controller 9 in the vertical direction through the threaded rod 11, the sliding block 12 and the sliding rail 13 to realize scanning of the target area.

[0042] A drag chain 19 is further arranged between the lifting motor 10 and the horizontal motor 14, which is used to fix the related power lines and signal lines, so as to facilitate the movement of the execution controller 9 without affecting its use. The horizontal motor 14 is used to perform absolute horizontal calibration of the ranging platform when reaching the measurement position, so as to ensure the accuracy of the ranging. The lifting motor 10 and the horizontal motor 14 are both closed-loop stepping motors controlled by pulse signals. When the two laser range finders measure the distance to the two sides synchronously, the data are transmitted to the execution control unit 17 of the execution controller 9 through the serial port, and data judgment is performed, and finally the diameter of the tunnel is obtained. The attitude sensor can detect the horizontal data of the box body 18 in real time, i.e. the horizontal data of the two laser range finders, and the execution control unit 17 can control the horizontal motor 14 in real time according to the data of the attitude sensor, and then control the leveling platform 16 through the synchronous transmission device 15, so that it can keep absolute horizontal in real time, and finally ensure the horizontal measurement of the two laser range finders. The interactive control device 6 is composed of a battery 20, a wire reel 21, an interactive controller 22, a key 23, a screen 24 and a voltage display module 25. The battery 20 is used to power the lifting motor 10, the horizontal motor 14, the execution control unit 17, the laser range finder and the attitude sensor. The wire reel 21 winds the wire, which is used to connect the battery 20 and the related electrical equipment on the lifting motor 10 and the execution controller 9. The winding of the wire can prevent the wire from hindering the contraction of the upper support 7 and the lower support 5.

[0043] For the above example, those skilled in the art should know that, in the implementation of the above technical solution, the synchronous transmission device 15 is a transmission belt, and the leveling platform 16 can be adjusted in both left and right directions, i.e. the horizontal motor 14 can control the transmission belt to rotate, so as to synchronously control the leveling platform 16 to adjust the horizontal degree.

[0044] For the above example, those skilled in the art should know that, in the implementation of the above technical solution, the attitude sensor is a high-precision nine-axis gyroscope, which can transmit real-time attitude data to the execution control unit 17 through the serial port.

[0045] For the above example, those skilled in the art should know that in the implementation of the above technical solutions, the interactive controller 22 is used to control the screen 24 to display the measurement data, and the keys 23 are used to set parameters, including measurement keys and mode keys, the interactive controller 22 communicates with the execution control unit 17 of the execution controller 9 in real time through 2.4G WIFI, that is, the interactive controller 22 communicates with the execution control unit 17 of the execution controller 9 in real time through wireless, and the voltage display module 25 measures the voltage of the battery 20 in real time, and alarms when the voltage is too low.

[0046] The circuit principle block diagram of the interactive controller 22 and the execution controller 9 and the related structure is as shown in Figure 13

[0047] In the utility model, the working principle of the device is as follows:

[0048] Before measurement, the I-shaped rack 1 and related parts are unfolded to form a rail car, then the upper support 7 and the lower support 5 are stretched open, the bottom of the upper support 7 and the top of the lower support 5 are fixed by screws, finally the execution controller 9 reaches near the maximum diameter of the tunnel, then the sliding module 8 can move the execution controller 9 near the maximum diameter of the tunnel. Since the distance between the ranging platform in the tunnel and the ground is more than 2m, the interactive control device 6 is separated from the execution controller 9. The two laser range finders on the execution controller 9 measure the distance from the execution controller 9 to the two sides of the tunnel respectively, the execution control unit 17 of the execution controller 9 reads the data of the two laser range finders and the attitude sensor in the box body 18 through the serial port, controls the horizontal motor 14 according to the data of the attitude sensor, the horizontal motor 14 controls the leveling platform 16 to adjust and calibrate the absolute level through the synchronous transmission device 15, thereby effectively ensuring the accuracy of ranging. The lifting motor 10 controlling the sliding module 8 enables the execution controller 9 to move in the vertical direction, thereby realizing scanning and measuring the target area in the tunnel. The two laser range finders measure the distance to the two sides synchronously, transmit the data to the execution control unit 17 of the execution controller 9 through the serial port, and calculate, finally obtaining the distance from the two sides of the tunnel. At the same time, the red laser of the laser range finder can mark the corresponding position of the target installation, providing a basis for the construction personnel, compared with manual naked eye positioning, the positioning is more accurate. The interactive control device 6 is responsible for displaying the measured data and setting parameters, and communicates with the execution control unit 17 of the execution controller 9 in real time through wireless.

[0049] ​The folding arms 2 arranged simultaneously can be folded and rotated to the vertical beam direction of the I-shaped frame 1, the handrails 4 can be folded to the I-shaped frame 1, and the whole is convenient to carry. The folding arms 2 can also be unfolded to the position parallel to the cross beam of the I-shaped frame 1, used for moving on the track in the existing tunnel, that is, the lockable wheels 3 under the four folding arms 2 move on the track in the existing tunnel, and the handrails 4 are installed above the side cross beam of the I-shaped frame 1, so that the whole is convenient to push and move by the construction personnel, that is, the track vehicle moves.

[0050] The above merely describes the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A railcar for detecting the maximum diameter of a tunnel, comprising a mobile device, characterized in that, The mobile device is provided with a measuring device, and the mobile device comprises an I-shaped frame (1), the measuring device comprises an upper support (7) and a lower support (5), the lower support (5) is vertically and fixedly installed at the middle position of the upper side of the I-shaped frame (1), the upper support (7) is vertically and slidingly installed inside the lower support (5), the top inside of the upper support (7) is internally provided with a sliding module (8), and a detection assembly for detecting a tunnel is matched and arranged on the sliding module (8).

2. A railcar for detecting the maximum diameter of a tunnel according to claim 1, characterized in that, The mobile device further comprises four folding arms (2), the I-shaped frame (1) comprises two cross beams and a vertical beam, the four folding arms (2) are rotationally installed below the two cross beams of the I-shaped frame (1), the folding arms (2) can be folded and rotated towards the vertical beam of the I-shaped frame (1), the folding arms (2) can also be unfolded to a position parallel to the cross beams of the I-shaped frame (1), lockable wheels (3) are installed below the four folding arms (2), a handrail (4) is installed above the side cross beam of the I-shaped frame (1), and the handrail (4) can be folded towards the I-shaped frame (1).

3. The railcar for detecting the maximum diameter of a tunnel according to claim 1, wherein The bottom of the upper support (7) can be fixed with the top of the lower support (5) through screws.

4. The railcar for detecting the maximum diameter of a tunnel according to claim 1, wherein The sliding module (8) comprises a lifting motor (10), the lifting motor (10) is fixedly installed inside the upper support (7), the lifting motor (10) is coaxially fixed with a threaded screw rod (11), a sliding rail (13) is vertically and fixedly installed inside the upper support (7), a sliding block (12) is slidingly arranged on the sliding rail (13), the sliding block (12) is threadedly connected with the threaded screw rod (11), and the threaded screw rod (11) is rotationally connected with the sliding block (12).

5. A railcar for detecting the maximum diameter of a tunnel as claimed in claim 4, wherein, The detection assembly comprises an execution controller (9), the execution controller (9) is installed on the sliding block (12), the execution controller (9) is provided with a box body (18), two laser range finders and an attitude sensor are symmetrically installed in the box body (18), the execution controller (9) is further provided with a horizontal motor (14) and a leveling platform (16), the box body (18) is installed on the upper side of the leveling platform (16), the horizontal motor (14) is fixedly connected with the sliding block (12), and the horizontal motor (14) can control the leveling platform (16) to be absolutely horizontally adjusted through a synchronous transmission device (15).

6. A railcar for detecting the maximum diameter of a tunnel according to claim 5, wherein The lower support (5) is provided with an interactive control device (6) at the bottom.

7. A railcar for detecting the maximum diameter of a tunnel according to claim 6, characterized in that, The interactive control device (6) comprises a battery (20) for providing power.

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