Tunnel detection radar scanning support vehicle

Abstract

A tunnel detection radar scanning support vehicle relates to the field of tunnel detection. The device comprises a chassis walking part, a lever supporting part, a multi-hole hinge limiting part and a radar antenna fixing part, the lever supporting part is installed on the chassis walking part, the multi-hole hinge limiting part is installed on the top of the lever supporting part, and the radar antenna fixing part is installed on the top of the multi-hole hinge limiting part. The device has the characteristics of stable structure, simplicity in operation and extremely high working efficiency, and has the advantages that the antenna can be better attached to the lining surface, the accuracy of radar detection results is ensured, the safety of operators is improved, the labor intensity of the operators is reduced, the cost is low, and the device can adapt to lining detection of various tunnel diameters.

Description

Technical Field

[0001] This utility model relates to the field of tunnel inspection, and in particular to a tunnel inspection radar scanning support vehicle for supporting a ground-penetrating radar antenna for tunnel lining inspection. Background Technology

[0002] The geological conditions in areas where tunnels are located are often complex, and the construction environment is relatively harsh. If construction techniques are not standardized, construction procedures lack rigor, and supervision is insufficient, common quality problems such as substandard initial shotcrete thickness, poor bonding with the surrounding rock, internal voids, and water leakage can easily occur. Engineering radar, as a novel and efficient detection method, has been widely used in the field of tunnel quality inspection. During actual tunnel construction, radar can accurately detect various aspects, including voids in the concrete lining, the degree of backfill compaction, lining thickness, the number of steel supports, the density and thickness of the secondary lining, the distribution of reinforcing bars, and the thickness of the protective layer. This provides a reliable basis for effectively eliminating potential hazards and enables comprehensive monitoring and control of tunnel construction quality. It also plays a significant role in tunnel inspection during operation, determining the scope of repair work and improving operational safety. In practical use, the ground-penetrating radar needs to be stably placed in a specific location or moved along a predetermined trajectory to obtain accurate underground geological information. However, existing ground-penetrating radar scanning operations often lack specially designed, efficient, stable, and easy-to-operate support devices.

[0003] In operating environments inaccessible to auxiliary vehicles or machinery, the traditional method of inspection, where personnel hand-hold a support bracket connected to the radar probe, has several drawbacks: 1. Poor visibility within tunnels necessitates dedicated personnel to provide lighting and guidance, limiting operational efficiency and making radar scanning speed control difficult; 2. Due to instability, the handheld radar probe bracket is prone to swaying, causing the radar antenna to zigzag along the lining surface or the probe to detach from it, impacting data acquisition; 3. Prolonged exposure to the probe requires significant physical exertion, and the operating time is limited by the number of personnel; 4. For larger tunnel diameters, the radar probe bracket is lengthy, reducing operator maneuverability, increasing operator risk, and lowering inspection quality; 5. Limited space in the inspection environment makes it difficult to access equipment or accessories to the work surface, restricting the operational method and limiting the scope of operation. Summary of the Invention

[0004] The present invention aims to solve the problem that current testing equipment is greatly constrained by the environment and that handheld probe testing is inconvenient. It provides a tunnel testing radar scanning support vehicle for supporting the ground radar antenna for tunnel lining testing.

[0005] The tunnel inspection radar scanning support vehicle of this utility model is characterized in that the scanning support vehicle includes a chassis traveling component, a lever support component, a multi-hole hinge limiting component, and a radar antenna fixing component. The lever support component is mounted on the chassis traveling component, the multi-hole hinge limiting component is mounted on the top of the lever support component, and the radar antenna fixing component is mounted on the top of the multi-hole hinge limiting component; wherein:

[0006] The chassis travel components include a chassis, casters, a height adjustment assembly, a central fixing frame, and support connecting rods. Four casters are installed at the four corners of the chassis bottom, and four support connecting rods are installed at the four corners of the chassis, facing upwards. The central fixing frame is horizontally positioned above the chassis and connected to the middle section of the four support connecting rods. The height adjustment assembly includes a height adjustment bracket and a height adjustment component. The height adjustment bracket is fixed in the middle of the chassis, and the height adjustment component is vertically fixed in the middle of the height adjustment bracket.

[0007] The multi-hole hinged limiting component includes a rotating disk and a sleeve. The rotating disk is horizontally set, and four hinge holes are provided on the back of the rotating disk. The four hinge holes are respectively connected and fixed to the top of four support connecting rods. A circular hole is provided at the center of the rotating disk. The sleeve is vertically fixed at the center of the rotating disk. The sleeve is hollow inside and located on the circular hole of the rotating disk.

[0008] The lever support component includes a lever support rod, a lever antenna rod, and a U-shaped slot. The lever support rod is vertically positioned and its bottom is installed inside the height adjustment component. The upper part of the lever support rod passes through the round hole and sleeve of the rotating disk. The U-shaped slot is fixed to the top of the lever support rod, and the lever antenna rod is installed in the U-shaped slot. A bolt is inserted into the upper part of the U-shaped slot, and the bolt is located above the lever antenna rod.

[0009] The radar antenna fixing components include a fixing connecting block, an arc-shaped limiting plate, and a radar antenna connector. The arc-shaped limiting plate is fixed to the top of the lever antenna rod and has an arc-shaped limiting groove. The tail end of the fixing connecting block is connected to the top of the lever antenna rod by bolts. A limiting bolt is installed on the side wall of the middle section of the fixing connecting block. The limiting bolt is located in the arc-shaped limiting groove and slides along the arc-shaped limiting groove. The radar antenna connector is fixed to the fixing connecting block, and the radar antenna is installed and fixed through the radar antenna connector.

[0010] The height adjustment component is an angle steel, which is vertically fixed. Several through holes are equidistantly arranged on the side wall of the angle steel, and positioning pins are installed in the through holes. Several round holes are provided at the lower end of the lever support rod. The positioning pins pass through the round holes to limit the insertion depth of the lever support rod, thereby adjusting the height of the radar antenna.

[0011] Several support feet are welded horizontally on the support connecting rod, with a spacing of 0.5-1.0m between two adjacent support feet, which facilitates the staff to adjust the radar antenna up and down.

[0012] The lever antenna rod has ropes connected to both ends. Pulling the ropes adjusts the angle and height of the lever antenna rod, allowing for precise adjustment of the radar antenna's height and angle. This changes the vertical position of the radar scanning device to adapt to different detection requirements at different heights, achieving fine-tuning. It ensures the radar antenna fits tightly against the tunnel lining surface, and the soft-hard connection structure protects the antenna, provides shock absorption, and improves structural stability. Simultaneously, it reduces human intervention during operation, enhancing the data quality and reliability of radar detection.

[0013] This utility model of a tunnel inspection radar scanning support vehicle has a simple structure, scientific design, and is easy to use, and has the following significant advantages:

[0014] 1. Flexibility: The entire radar scanning support vehicle is detachable and mostly connected by movable joints. The main connection method is a uniform type of connecting bolts. All components are very easy to transport and assemble after disassembly. It has strong adaptability and mobility for working environments with limited space.

[0015] 2. Stability: The chassis running support structure and high-strength material design can effectively adapt to various complex terrains, ensuring that the radar antenna does not tilt or detach from the scanning surface during the scanning process, thereby improving the accuracy of the scanning data;

[0016] 3. Versatility: The bracket structure is stable, the lever supports a large weight, and the chassis supports a stable walking structure, possessing a certain load-bearing capacity; it can be finely adjusted according to the antenna size of different radar equipment models to achieve adaptation;

[0017] 4. High efficiency: The radar scanning support vehicle operates stably. By manually controlling the operating speed to match the radar scanning speed, the fastest measured speed can reach 100m in 2 minutes. With equipment upgrades, the operating speed can be adjusted according to the equipment characteristics to achieve high-efficiency operation.

[0018] 5. Safety: The radar scanning support vehicle is constructed entirely of lightweight steel, providing excellent rigidity and toughness. The radar antenna is well protected, and the support's center of gravity is well-designed to prevent tipping, ensuring good safety for personnel and equipment.

[0019] 6. Operability: After the radar scanning bracket vehicle is assembled and the radar antenna installation angle and height are adjusted, only manual pushing of the bracket is required during operation. No adjustments are needed during operation, and the operation requirements for operators are extremely low. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0021] Figure 2This is a three-dimensional schematic diagram of the lever structure of this utility model.

[0022] Figure 3 This is a three-dimensional schematic diagram of the chassis walking support of this utility model.

[0023] Figure 4 This is a three-dimensional schematic diagram of the radar antenna fixing according to this utility model.

[0024] Figure 5 This is a three-dimensional schematic diagram of the lever fixing fulcrum of the radar antenna bracket of this utility model.

[0025] Figure 6 This is a three-dimensional schematic diagram of the multi-hole hinged limiting platform of this utility model.

[0026] Figure 7 This is a three-dimensional schematic diagram of the details of the stabilizing and reinforcing pin in the middle of the chassis walking support of this utility model.

[0027] The components include: radar antenna 1, radar antenna connector 2, fixed connecting block 3, arc-shaped limiting piece 4, lever antenna rod 5, U-shaped slot 6, sleeve 7, rotating disk 8, hinge hole 9, lever support rod 10, support connecting rod 11, support foot pedal 12, central fixing frame 13, height adjustment component 14, height adjustment bracket 15, chassis 16, and caster wheel 17. Detailed Implementation

[0028] Example 1: A tunnel detection radar scanning support vehicle includes a chassis traveling component, a lever support component, a multi-hole hinge limiting component, and a radar antenna fixing component. The lever support component is mounted on the chassis traveling component, the multi-hole hinge limiting component is mounted on top of the lever support component, and the radar antenna fixing component is mounted on top of the multi-hole hinge limiting component; wherein:

[0029] The chassis travel components include a chassis, casters, a height adjustment assembly, a central fixing frame, and support connecting rods. Four casters are installed at the four corners of the chassis bottom, and four support connecting rods are installed upwards at the four corners of the chassis. The central fixing frame is horizontally positioned above the chassis and connected to the middle sections of the four support connecting rods. The height adjustment assembly includes a height adjustment bracket and a height adjustment component. The height adjustment bracket is fixed in the middle of the chassis, and the height adjustment component is vertically fixed in the middle of the height adjustment bracket. The height adjustment component is made of angle steel, which is vertically fixed. Several through holes are equidistantly arranged on the side wall of the angle steel, and positioning pins are installed in the through holes. Several round holes are provided at the lower end of the lever support rod, through which the positioning pins pass. The positioning pins limit the insertion depth of the lever support rod, thereby adjusting the height of the radar antenna. Several support feet are horizontally welded to the support connecting rod, with a spacing of 0.5-1.0m between adjacent support feet, facilitating the operator's adjustment of the radar antenna.

[0030] The multi-hole hinged limiting component includes a rotating disk and a sleeve. The rotating disk is horizontally set, and four hinge holes are provided on the back of the rotating disk. The four hinge holes are respectively connected and fixed to the top of four support connecting rods. A circular hole is provided at the center of the rotating disk. The sleeve is vertically fixed at the center of the rotating disk. The sleeve is hollow inside and located on the circular hole of the rotating disk.

[0031] The lever support component includes a lever support rod, a lever antenna rod, and a U-shaped slot. The lever support rod is vertically positioned and its bottom is installed inside the height adjustment component. The upper part of the lever support rod passes through the round hole and sleeve of the rotating disk. The U-shaped slot is fixed to the top of the lever support rod, and the lever antenna rod is installed in the U-shaped slot. A bolt is inserted into the upper part of the U-shaped slot, and the bolt is located above the lever antenna rod.

[0032] The radar antenna fixing components include a fixing connecting block, an arc-shaped limiting plate, and a radar antenna connector. The arc-shaped limiting plate is fixed to the top of the lever antenna rod and has an arc-shaped limiting groove. The tail end of the fixing connecting block is connected to the top of the lever antenna rod by bolts. A limiting bolt is installed on the side wall of the middle section of the fixing connecting block. The limiting bolt is located in the arc-shaped limiting groove and slides along the arc-shaped limiting groove. The radar antenna connector is fixed to the fixing connecting block, and the radar antenna is installed and fixed through the radar antenna connector.

[0033] The lever antenna mast is also connected to ropes at both ends. Pulling the ropes adjusts the angle and height of the lever antenna mast, which allows for precise adjustment of the radar antenna's height and angle. This changes the vertical position of the radar scanning device to adapt to different detection requirements at different heights, achieving fine-tuning. It ensures that the radar antenna fits tightly against the tunnel lining surface. The soft and hard connection structure protects the antenna, provides some shock absorption, and improves structural stability. At the same time, it reduces human intervention during operation, improving the data quality and reliability of radar detection.

[0034] Move the device to the work area, perform a rough height adjustment by raising the lever support rod, and secure it using the positioning pins and pre-drilled holes in the height adjustment components. Pull the lever antenna rod to ensure the radar antenna is in close contact with the tunnel lining surface, and secure the rope to the chassis, thus completing the radar scanning support vehicle's operational state. Then, manually push the vehicle along the work direction to begin scanning and detection work in accordance with the radar scanning speed.

Claims

1. A tunnel detection radar scanning support vehicle, characterized in that... The scanning support vehicle includes a chassis running gear, a lever support component, a multi-hole hinge limiting component, and a radar antenna fixing component. The lever support component is mounted on the chassis running gear, the multi-hole hinge limiting component is mounted on top of the lever support component, and the radar antenna fixing component is mounted on top of the multi-hole hinge limiting component; wherein: The chassis travel components include a chassis, casters, a height adjustment assembly, a central fixing frame, and support connecting rods. Four casters are installed at the four corners of the chassis bottom, and four support connecting rods are installed at the four corners of the chassis, facing upwards. The central fixing frame is horizontally positioned above the chassis and connected to the middle section of the four support connecting rods. The height adjustment assembly includes a height adjustment bracket and a height adjustment component. The height adjustment bracket is fixed in the middle of the chassis, and the height adjustment component is vertically fixed in the middle of the height adjustment bracket. The multi-hole hinged limiting component includes a rotating disk and a sleeve. The rotating disk is horizontally set, and four hinge holes are provided on the back of the rotating disk. The four hinge holes are respectively connected and fixed to the top of four support connecting rods. A circular hole is provided at the center of the rotating disk. The sleeve is vertically fixed at the center of the rotating disk. The sleeve is hollow inside and located on the circular hole of the rotating disk. The lever support component includes a lever support rod, a lever antenna rod, and a U-shaped slot. The lever support rod is vertically positioned and its bottom is installed inside the height adjustment component. The upper part of the lever support rod passes through the round hole and sleeve of the rotating disk. The U-shaped slot is fixed to the top of the lever support rod, and the lever antenna rod is installed in the U-shaped slot. A bolt is inserted into the upper part of the U-shaped slot, and the bolt is located above the lever antenna rod. The radar antenna fixing components include a fixing connecting block, an arc-shaped limiting plate, and a radar antenna connector. The arc-shaped limiting plate is fixed to the top of the lever antenna rod and has an arc-shaped limiting groove. The tail end of the fixing connecting block is connected to the top of the lever antenna rod by bolts. A limiting bolt is installed on the side wall of the middle section of the fixing connecting block. The limiting bolt is located in the arc-shaped limiting groove and slides along the arc-shaped limiting groove. The radar antenna connector is fixed to the fixing connecting block, and the radar antenna is installed and fixed through the radar antenna connector.

2. The tunnel detection radar scanning support vehicle as described in claim 1, characterized in that... The height adjustment component is an angle steel, which is vertically fixed. Several through holes are equidistantly arranged on the side wall of the angle steel, and positioning pins are installed in the through holes. Several round holes are provided at the lower end of the lever support rod, and the positioning pins pass through the round holes.

3. The tunnel detection radar scanning support vehicle as described in claim 1, characterized in that... Several support feet are welded horizontally on the support connecting rod, with a spacing of 0.5-1.0m between two adjacent support feet.

4. The tunnel detection radar scanning support vehicle as described in claim 1, characterized in that... The lever antenna rod has ropes connected to both ends.

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