Highway tunnel detection device

Abstract

The utility model discloses a highway tunnel detection device, which belongs to the technical field of highway engineering and comprises a bottom plate, a movable plate mounted above the bottom plate, an electric push rod fixedly connected to the top end of the movable plate, a fixed plate fixedly connected to the top surface of the electric push rod, and an arc outer cover mounted above the fixed plate and used for detecting a tunnel vault. A detection structure used for detecting the depth of the vault gap is slidably installed in an inner cavity of the arc outer cover, an adjusting structure used for adjusting the detection angle of the arc outer cover is fixedly installed at the bottom end of the arc outer cover, and accurate detection of the depth of the tunnel vault gap is achieved through the inverted-cone-shaped design of the detection needle tube and the mode that the air bag pushes the detection needle tube to move upwards. In the upward moving process of the detection needle tube, the sensing block is matched with the elastic piece and the sensing block arranged in the power supply block, the pressure of the elastic piece is sensed in real time through the sensing block, a stress signal is accurately converted into the upward moving depth of the detection needle tube, and therefore accurate data support of the gap depth is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering, in particular to a highway tunnel detection device. Background Art

[0002] As tunnels age, their structures will be affected by a variety of factors, such as the external environment, operational loads, and natural disasters, resulting in varying degrees of damage or deterioration. The use of highway tunnel detection devices can effectively identify these hidden dangers and take corresponding preventive and repair measures in a timely manner.

[0003] A Chinese patent discloses a highway tunnel detection device (Announcement No. CN213364608U), which includes a bottom plate, a first electric lift platform is fixedly connected to one side of the top of the bottom plate, a load-bearing block is fixedly connected to one side of the top of the bottom plate, the load-bearing block is located on one side of the first electric lift platform, a cargo box is fixedly connected to the top of the first electric lift platform, and a cylinder is fixedly connected to the inner wall of the bottom of the cargo box. A horizontal plate is fixedly connected to the top of the cylinder, a humidity detector is fixedly connected to one side of the top of the horizontal plate, a camera is fixedly connected to the other side of the top of the horizontal plate, and both sides of the outer wall of the cargo box are fixedly connected to fixing rings;

[0004] Therefore, based on the above retrieval and in combination with the existing ones, only the length of the gap in the tunnel vault can be measured, and the accurate detection of the depth of the gap in the tunnel vault cannot be achieved, resulting in certain limitations of the device and lack of real-time data support for the gap depth. It is difficult to provide comprehensive key information and parameters for subsequent gap repair work, which reduces the practicality and accuracy of the device, and further affects the accuracy and efficiency of tunnel maintenance. Utility Model Content

[0005] The purpose of the utility model is to provide a highway tunnel detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A highway tunnel detection device comprises a bottom plate, a movable plate is installed above the bottom plate, an electric push rod is fixedly connected to the top of the movable plate, a fixed plate is fixedly connected to the top surface of the electric push rod, an arc cover for detecting the tunnel vault is installed above the fixed plate, a detection structure for detecting the depth of the vault gap is slidably installed in the inner cavity of the arc cover, an adjustment structure for adjusting the detection angle of the arc cover is fixedly installed at the bottom end of the arc cover, and a lifting structure for adjusting the detection height of the arc cover is fixedly installed between the bottom plate and the movable plate;

[0008] The bottom surface of the base plate is fixedly connected with a universal wheel for a mobile device, the inner cavity of the arc outer cover is fixedly installed with multiple optical imagers for detecting the length of the arch gap and a lighting board for assisting in detecting the gap, and the detection structure is located between the optical imager and the lighting board.

[0009] As a further solution of the utility model, the detection structure includes a detection needle tube, which is provided with multiple detection needle tubes and is slidably installed in the arc outer cover, and power supply blocks are installed on both sides of each detection needle tube. A spring is fixedly installed on the side of the power supply block close to the detection needle tube, and one side of the spring is in contact with the outer wall of the detection needle tube, and an airbag for pushing the detection needle tube to move is fixedly installed at the bottom end of the inner cavity of the arc outer cover.

[0010] As a further solution of the utility model, the outer wall of each detection needle tube is fixedly sleeved with an outer plate, the top end of the outer plate is fixedly connected with a spring for pushing the detection needle tube to move downward and reset, and the top end of the spring is fixedly connected to the inner wall of the arc outer cover.

[0011] As a further solution of the present invention, the adjustment structure includes a fixed column, which is fixedly installed on the top surface of the fixed plate. The outer wall of the fixed column is rotatably sleeved with three groups of rotating frames. The top of each group of rotating frames is rotatably connected to a transmission rod, and the tops of multiple transmission rods are rotatably connected to the same connecting plate. The bottom end of the rotating frame is fixedly connected to a driving structure for providing rotational power for the rotating frame.

[0012] As a further solution of the utility model, the lifting structure includes a folding rod, and the upper and lower ends of the folding rod are rotatably connected to the base plate and the movable plate respectively through connecting parts. The folding rod is provided with two groups and a plurality of groups of connecting rods for strengthening the supporting force of the device are fixedly installed on one side corresponding to the two groups of folding rods, and an electric rod for driving the folding rod to rise and fall is rotatably installed on the outer wall of the connecting rod.

[0013] As a further solution of the utility model, the top end of the base plate is fixedly connected to a main control box, and the top surface of the main control box is fixedly installed with a display screen for viewing the detection values ​​and a push handle for pushing the base plate to move.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the utility model is used, the inverted cone design of the detection needle tube and the airbag pushing the detection needle tube upward can realize the accurate detection of the depth of the tunnel vault gap. In the process of the detection needle tube moving upward, the spring piece and the sensing block built into the power supply block are used to sense the pressure of the spring piece in real time through the sensing block, and the force signal is accurately converted into the depth of the upward movement of the detection needle tube, thereby providing accurate data support for the gap depth, effectively realizing the detection of the gap depth, providing comprehensive and key detection parameters for subsequent tunnel maintenance and repair work, and improving the accuracy and reliability of tunnel safety assessment.

[0016] 2. When the utility model is used, the detection device can be flexibly adjusted at different heights and angles through the lifting structure and the adjustment structure. The height of the entire device can be adjusted by driving the folding rod to lift and lower by the electric rod, ensuring that the arc outer cover can be accurately aligned with the tunnel vault position; the driving wheel and the driven wheel drive the rotating frame to achieve the multi-angle detection capability of the arc outer cover, which can cover different angle areas of the tunnel vault. In addition, the multiple optical imagers and lighting panels built into the arc outer cover work together to clearly scan and image the gap position and contour of the tunnel vault, providing all-round support for gap detection, effectively enhancing the flexibility of the device, and expanding the detection coverage, greatly improving the efficiency and practicality of tunnel vault detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a highway tunnel detection device.

[0018] Figure 2 It is a cross-sectional view of a detection structure in a highway tunnel detection device.

[0019] Figure 3 A detailed diagram of the detection structure in a highway tunnel detection device.

[0020] Figure 4 The present invention is a structural diagram of an adjustment structure in a highway tunnel detection device.

[0021] Figure 5 The present invention is a connection diagram of a fixed column and a rotating frame in a highway tunnel detection device.

[0022] Figure 6 The figure is a structural diagram of a lifting structure in a highway tunnel detection device.

[0023] In the figure: 1. bottom plate; 2. moving plate; 3. electric push rod; 4. fixed plate; 5. arc outer cover; 501. optical imager; 502. lighting lamp board; 6. universal wheel; 701. detection needle tube; 702. power supply block; 703. shrapnel; 704. air bag; 705. light bulb; 706. outer plate; 707. spring; 708. air pump; 801. fixed column; 802. rotating frame; 803. connecting plate; 804. motor; 805. driving wheel; 806. driven wheel; 807. transmission rod; 901. folding rod; 902. connecting rod; 903. electric rod; 904. rotating wheel; 905. limiting sleeve; 10. main control box; 11. display screen; 12. push handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 A highway tunnel detection device comprises a bottom plate 1, a movable plate 2 is installed above the bottom plate 1, an electric push rod 3 is fixedly connected to the top of the movable plate 2, a fixed plate 4 is fixedly connected to the top surface of the electric push rod 3, an arc cover 5 for detecting the tunnel vault is installed above the fixed plate 4, a detection structure for detecting the depth of the vault gap is slidably installed in the inner cavity of the arc cover 5, an adjustment structure for adjusting the detection angle of the arc cover 5 is fixedly installed at the bottom end of the arc cover 5, and a lifting structure for adjusting the detection height of the arc cover 5 is fixedly installed between the bottom plate 1 and the movable plate 2;

[0026] The bottom surface of the bottom plate 1 is fixedly connected with a universal wheel 6 for a mobile device, and the inner cavity of the arc outer cover 5 is fixedly installed with a plurality of optical imagers 501 for detecting the length of the arch gap and a lighting board 502 for assisting in detecting the gap, and the detection structure is located between the optical imager 501 and the lighting board 502;

[0027] The detection structure includes a detection needle tube 701, which is provided with multiple detection needle tubes 701 and is slidably installed in the arc outer cover 5. Power supply blocks 702 are installed on both sides of each detection needle tube 701. A spring 703 is fixedly installed on one side of the power supply block 702 close to the detection needle tube 701, and one side of the spring 703 is in contact with the outer wall of the detection needle tube 701. An air bag 704 for pushing the detection needle tube 701 to move is fixedly installed at the bottom end of the inner cavity of the arc outer cover 5;

[0028] Specifically, the power supply block 702 is fixedly connected to the inner wall of the arc outer cover 5, and the outer wall of the arc outer cover 5 is provided with a sliding hole for providing sliding of the detection needle tube 701. Each detection needle tube 701 is set to be inverted cone shape, and the bottom end to the top end of the detection needle tube 701 gradually becomes tapered, and the airbag 704 is inflated and expanded to push the detection needle tube 701 upward, and the inverted cone outer wall of the detection needle tube 701 is used to gradually push the spring piece 703 to fit and squeeze the power supply block 702 during the upward movement of the detection needle tube 701. A sensing block is fixedly installed on the side of the power supply block 702 close to the spring piece 703, and the sensing block is used to receive the size of the pressure of the spring piece 703 to accurately The actual depth of the upward movement of the detection needle tube 701 is calculated, so as to achieve accurate detection of the depth of the tunnel gap and provide key data support for tunnel safety assessment; specifically, the pressure received by the sensing block is proportional to the thickness of the outer diameter of the detection needle tube 701, and the further the detection needle tube 701 moves upward, the larger the outer diameter in contact with the receiving spring 703 becomes. Therefore, the upward movement distance of the detection needle tube 701 is proportional to the degree of compression of the receiving spring 703, and the pressure on the receiving spring 703 is proportional to the pressure on the sensing block. Therefore, the pressure of the spring 703 received by the sensing block can be used to accurately calculate the actual depth of the upward movement of the detection needle tube 701;

[0029] More specifically, a battery is fixedly installed on the inner wall of the arc outer cover 5 to provide power to the power supply block 702. A light bulb 705 is fixedly installed on the top of the power supply block 702. When the detection needle tube 701 starts to move upward under the push of the airbag 704, the spring 703 squeezes the power supply block 702 to connect the circuit, and the light bulb 705 lights up, clearly informing the operator that the detection device is in an activated and normal working state, so that the operator can know in real time whether the detection process is successfully started. Specifically, a micro-trigger switch is installed on one end of the power supply block 702 close to the spring 703;

[0030] The outer wall of each detection needle tube 701 is fixedly sleeved with an outer plate 706, and the top of the outer plate 706 is fixedly connected to a spring 707 for pushing the detection needle tube 701 to move downward and reset, and the top of the spring 707 is fixedly connected to the inner wall of the arc outer cover 5;

[0031] An air pump 708 for inflating the air bag 704 is fixedly connected to one side of the arc outer cover 5, and an air outlet end of the air pump 708 is fixedly connected to the air bag 704 through a pipeline.

[0032] See also Figure 1 , Figure 4 , Figure 5The adjustment structure includes a fixed column 801, which is fixedly mounted on the top surface of the fixed plate 4. The outer wall of the fixed column 801 is rotatably sleeved with three groups of rotating frames 802. The top of each group of rotating frames 802 is rotatably connected to a transmission rod 807 through a pin shaft. The tops of the multiple transmission rods 807 are rotatably connected to the same connecting plate 803 through a pin shaft. The bottom end of the rotating frame 802 is fixedly connected to a driving structure for providing rotational power to the rotating frame 802.

[0033] Specifically, the top end of the connecting plate 803 is fixedly connected to the bottom end of the arc outer cover 5 through a connecting shaft, and the air pump 708 is fixedly installed on the top surface of the connecting plate 803;

[0034] The driving structure includes a motor 804, which is fixedly mounted on the top surface of the fixed plate 4, and the output shaft of the motor 804 is fixedly mounted and connected with a driving wheel 805, and the outer wall of the fixed column 801 is fixedly connected with a driven wheel 806, and the driven wheel 806 is meshed with the driving wheel 805;

[0035] Specifically, there are three driven wheels 806 that are symmetrically and evenly distributed on the outer wall of the fixed column 801. The top of each driven wheel 806 is fixedly connected to the corresponding rotating frame 802. More specifically, the lower end of each rotating frame 802 is fixedly connected to a sleeve, and the three sleeves are sequentially mounted on the outside of the fixed column 801 from the inside to the outside.

[0036] Example 2: Please refer to Figure 1 , Figure 2 , Figure 6 The lifting structure includes a folding rod 901, and the upper and lower ends of the folding rod 901 are rotatably connected to the bottom plate 1 and the movable plate 2 respectively through connecting pieces. The folding rod 901 is provided with two groups, and a plurality of connecting rods 902 for strengthening the supporting force of the device are fixedly installed on the corresponding side of the two groups of folding rods 901. The outer wall of the connecting rod 902 is rotatably installed with an electric rod 903 for driving the folding rod 901 to rise and fall;

[0037] Specifically, the upper and lower ends of the folding rod 901 are rotatably connected to the rotating wheels 904 via pins on one side away from the connecting member, and the outer wall of each set of rotating wheels 904 is slidably sleeved with a limiting sleeve 905, and the two sets of limiting sleeves 905 are fixedly connected to the bottom surface of the movable plate 2 and the top surface of the bottom plate 1 respectively;

[0038] More specifically, a movable groove is provided inside the limiting sleeve 905 for providing rotation of the rotating wheel 904, and the rotating wheel 904 is located in the movable groove. The connecting rod 902 is driven by the electric rod 903 to push the folding rod 901 to move upward, thereby lifting the movable plate 2. At the same time, one end of the folding rod 901 is connected to the rotating wheel 904 to move in the limiting sleeve 905, thereby assisting the folding rod 901 to rise and fall smoothly.

[0039] See also Figure 1 , Figure 3 , Figure 5 The top of the bottom plate 1 is fixedly connected with a main control box 10, and the top surface of the main control box 10 is fixedly installed with a display screen 11 for viewing the detection values ​​and a push handle 12 for pushing the bottom plate 1 to move.

[0040] The working principle of the utility model is:

[0041] First, the bottom plate 1 is moved by operating the push handle 12 to adjust the device to the specified position. When the device reaches the target detection position, the device enters the detection preparation stage;

[0042] Then, the electric rod 903 in the lifting structure drives the connecting rod 902 to expand or contract the folding rod 901, driving the moving plate 2 to rise, thereby raising the height of the entire detection device to ensure that the detection position of the arc outer cover 5 is initially and accurately aligned with the tunnel vault, and the electric push rod 3 pushes the fixed plate 4 to further push the arc outer cover 5 upward to fit the tunnel vault;

[0043] Then, the motor 804 in the adjustment structure is started through the main control box 10 to drive the driving wheel 805 to rotate, and the meshing driven wheel 806 is used to drive the rotating frame 802 to rotate to adjust the angle of the transmission rod 807, so as to adjust the detection direction of the arc cover 5 to cover the detection requirements of different angles of the tunnel vault. At the same time, the optical imager 501 and the lighting lamp board 502 are started to cooperate with each other, and the lighting lamp board 502 is used to provide a light source to ensure that the detection environment is light enough. The optical imager 501 is used to perform a preliminary scan and imaging of the gaps in the tunnel vault to determine the distribution position and basic outline of the gaps;

[0044] Secondly, start the air pump 708 to inflate the airbag 704 through the pipeline, so that the airbag 704 expands and pushes the detection needle tube 701 to move upward. The detection needle tube 701 is designed as an inverted cone. As the airbag 704 expands, the detection needle tube 701 is gradually inserted into the gap of the tunnel vault. At the same time, the outer wall of the detection needle tube 701 contacts the shrapnel 703 and gradually squeezes the shrapnel 703, so that the shrapnel 703 acts on the power supply block 702. The induction block in the power supply block 702 senses the upward movement depth of the detection needle tube 701 in real time according to the magnitude of the force on the shrapnel 703, and transmits the data to the main control box 10. The main control box 10 calculates and displays the depth data of the gap according to the signal of the induction block. The operator views the detection data in real time through the display screen 11 on the main control box 10 to ensure that the detection process proceeds smoothly, and cooperates with the shrapnel 703 to squeeze the power supply block 702 to connect the circuit. The light bulb 705 lights up, informing the operator that the device is in normal working condition.

[0045] After the final detection is completed, the air pump 708 stops inflating, the gas in the airbag 704 is released, and the detection needle tube 701 gradually falls back and resets under the action of the spring 707. During the falling process of the detection needle tube 701, the outer plate 706 drives the spring 707 to gradually return to its initial state. The operator can readjust the height and angle of the device and repeat the detection process to change the detection position or continue to detect other areas.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road tunnel detection device, comprising a bottom plate (1), characterized in that: A movable plate (2) is installed above the bottom plate (1), an electric push rod (3) is fixedly connected to the top of the movable plate (2), a fixed plate (4) is fixedly connected to the top surface of the electric push rod (3), an arc cover (5) for detecting the tunnel vault is installed above the fixed plate (4), a detection structure for detecting the depth of the vault gap is slidably installed in the inner cavity of the arc cover (5), an adjustment structure for adjusting the detection angle of the arc cover (5) is fixedly installed at the bottom end of the arc cover (5), and a lifting structure for adjusting the detection height of the arc cover (5) is fixedly installed between the bottom plate (1) and the movable plate (2); The bottom surface of the bottom plate (1) is fixedly connected to a universal wheel (6) for a mobile device, and the inner cavity of the arc outer cover (5) is fixedly installed with a plurality of optical imagers (501) for detecting the length of the arch gap and a lighting board (502) for assisting in detecting the gap, and the detection structure is located between the optical imager (501) and the lighting board (502).

2. A road tunnel detection device according to claim 1, characterized in that: The detection structure comprises a detection needle tube (701), wherein a plurality of the detection needle tubes (701) are provided and are slidably installed in a circular arc outer cover (5), and power supply blocks (702) are installed on both sides of each detection needle tube (701), and a spring piece (703) is fixedly installed on a side of the power supply block (702) close to the detection needle tube (701), and one side of the spring piece (703) is in contact with the outer wall of the detection needle tube (701), and an air bag (704) for pushing the detection needle tube (701) to move is fixedly installed at the bottom end of the inner cavity of the circular arc outer cover (5).

3. A road tunnel detection device according to claim 2, characterized in that: The outer wall of each detection needle tube (701) is fixedly sleeved with an outer plate (706), the top end of the outer plate (706) is fixedly connected to a spring (707) for pushing the detection needle tube (701) to move downward and reset, and the top end of the spring (707) is fixedly connected to the inner wall of the arc outer cover (5).

4. A road tunnel detection device according to claim 1, characterized in that: The adjustment structure comprises a fixed column (801), wherein the fixed column (801) is fixedly mounted on the top surface of the fixed plate (4); the outer wall of the fixed column (801) is rotatably sleeved with three groups of rotating frames (802); the top end of each group of rotating frames (802) is rotatably connected to a transmission rod (807); the top ends of the plurality of transmission rods (807) are rotatably connected to the same connecting plate (803); and the bottom end of the rotating frame (802) is fixedly connected to a driving structure for providing rotational power to the rotating frame (802).

5. A road tunnel detection device according to claim 1, characterized in that: The lifting structure comprises a folding rod (901), wherein the upper and lower ends of the folding rod (901) are rotatably connected to the bottom plate (1) and the movable plate (2) respectively through connecting pieces, the folding rod (901) is provided with two groups, and a plurality of groups of connecting rods (902) for strengthening the supporting force of the device are fixedly installed on the corresponding sides of the two groups of folding rods (901), and an electric rod (903) for driving the folding rod (901) to rise and fall is rotatably installed on the outer wall of the connecting rod (902).

6. A road tunnel detection device according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a main control box (10), and the top surface of the main control box (10) is fixedly mounted with a display screen (11) for viewing detection values ​​and a push handle (12) for pushing the base plate (1) to move.

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