Geological radar detection auxiliary device

Abstract

The utility model relates to the technical field of radar detection, in particular to a geological radar detection auxiliary device, which comprises a fixed base, a telescopic device, a fixed frame, a rotating component and an angle adjusting component, and is characterized in that the upper end surface of the fixed base is rotationally connected with the telescopic device through a bearing; the telescopic device selects but is not limited to a hydraulic cylinder; the telescopic end of the telescopic device is rotationally connected with the fixing frame through a pin shaft; the rotating assembly is rotationally connected to the fixing frame, and the degree adjusting assembly is connected to the rotating assembly. According to the utility model, the rotating assembly takes the joint of the rotating assembly and the pin shaft of the fixing frame as the center of a circle, one end of the rotating assembly ascends, and the other end of the rotating assembly descends, so that the rotating assembly rotates to drive the geological radar to cling to the side wall of the tunnel to measure the vault of the tunnel; the geological radar is changed from being parallel to the ground to being perpendicular to the ground or at other angles, the rotated geological radar can detect the haunch or other positions of the tunnel, and detectable positions are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of radar detection, in particular to an auxiliary device for geological radar detection. Background Art

[0002] In order to ensure the construction quality of tunnel lining structures or find out the causes of lining diseases, non-destructive detection methods using geological radar are widely adopted in the engineering industry. Currently, the commonly used method is to manually move the transmitting and receiving antennas of the geological radar on the surface of the structure to be detected. When detecting the arch part, lifting devices such as aerial work platforms are required to lift the technicians and antennas to the specified height.

[0003] After retrieval, Chinese Patent Publication No. CN210923945U discloses an auxiliary tool for radar detection of tunnel crown linings. The auxiliary tool includes: an adjustable fork-shaped vertical rod, an adjustable horizontal rod, an instrument tray, and connecting bolts; the adjustable fork-shaped vertical rod includes: a base and a vertical column; the bottom of the vertical column is fixedly connected to the base, and the top of the vertical column is provided with two connecting plates; a plurality of height adjustment holes are arranged on the two connecting plates from top to bottom; a plurality of adjustment holes are arranged on the adjustable horizontal rod from front to back; the adjustable horizontal rod is clamped between the two connecting plates of the vertical column; the connecting bolts are used to pass through the height adjustment holes on the two connecting plates of the vertical column and the adjustment holes on the adjustable horizontal rod to rotatably connect the adjustable horizontal rod to the upper part of the vertical column; the instrument tray is connected to the front end of the adjustable horizontal rod; the instrument tray is used to install the detection instrument. Applying the utility model can effectively solve the problems of low efficiency and unstable data acquisition in the existing detection methods.

[0004] However, in the above technical solution, only the rotation of the horizontal rod between the two connecting plates is used to drive the instrument tray and the detection instrument to detect the tunnel. But when using this patent, the horizontal rod can only rotate around the connecting bolt to make the detection instrument detect the tunnel crown, and it cannot assist in detecting positions such as the arch waist or arch feet of the tunnel, so the application scenario is limited. Summary of the Utility Model

[0005] The purpose of the utility model is to propose an auxiliary device for geological radar detection aiming at the problems existing in the background art.

[0006] The technical solution of the utility model: An auxiliary device for geological radar detection includes a fixed base, which is rotatably connected with a telescopic device, and the telescopic end of the telescopic device is rotatably connected with a fixed frame; a rotating assembly, which is rotatably connected to the fixed frame; in the working state of the rotating assembly, the rotating assembly rotates to drive the geological radar to closely adhere to the tunnel side wall; an angle adjustment assembly, which is connected to the rotating assembly; in the working state of the angle adjustment assembly, the angle adjustment assembly drives the geological radar to rotate around the axis of the rotating assembly.

[0007] Preferably, the rotating assembly includes a rotating rod rotatably connected to the fixed frame; a pressing rod rotatably connected to the end of the rotating rod away from the ground penetrating radar, with a handle connected to the pressing rod; a fixed frame connected to the end of the rotating rod away from the pressing rod, the fixed frame being connected to the ground penetrating radar; a fitting assembly connected to the fixed frame; in the use state of the fitting assembly, the fitting assembly drives the ground penetrating radar to closely adhere to the wall and be parallel to the wall.

[0008] Preferably, the fitting assembly includes a moving frame arranged parallel to the fixed frame; a plurality of multi-stage telescopic rods evenly distributed at equal intervals, with both ends of the multi-stage telescopic rods rotatably connected to the fixed frame and the moving frame; a first elastic member, the number of which corresponds to that of the multi-stage telescopic rods, and the first elastic member is sleeved outside the multi-stage telescopic rods.

[0009] Preferably, the rotating rod includes a short rod and a long rod, the short rod is rotatably connected to the long rod, one end of the short rod is connected to the fixed frame, and the long rod is rotatably connected to the fixed frame.

[0010] Preferably, the angle adjustment assembly includes a fixed disk connected to one end of the long rod close to the short rod; a rotating disk connected to the short rod, the rotating disk being arranged parallel to the fixed disk; a limiting assembly connected to the fixed disk; in the use state of the limiting assembly, the limiting assembly restricts the rotation and angle change of the rotating disk to maintain it at a fixed angle.

[0011] Preferably, the limiting assembly includes a ratchet rack connected to the side of the rotating disk close to the fixed disk; a moving ring arranged between the fixed disk and the rotating disk, with a tooth groove meshing with the ratchet rack connected to the side of the moving ring close to the rotating disk; a plurality of guide rods evenly distributed at equal intervals, one end of the guide rod is connected to the moving ring, and the other end of the guide rod is slidably connected to the rotating disk; a second elastic member sleeved outside the guide rod, with both ends of the second elastic member connected to the moving ring and the fixed disk; a limiting ring connected to the other end of the guide rod, the limiting ring being arranged parallel to the moving ring.

[0012] Preferably, a plurality of extension plates evenly distributed at equal intervals are rotatably connected to the fixed base, and the extension plates are slidably connected to a storage groove formed in the fixed base.

[0013] Preferably, a guard plate arranged obliquely is connected to the side wall of the moving frame.

[0014] Compared with the prior art, the above technical solution of the present utility model has the following beneficial technical effects:

[0015] In the present utility model, in the use state of the rotating assembly, with the pin connection with the fixed frame as the center of rotation, one end of the rotating assembly rises while the other end descends, thereby driving the ground penetrating radar to closely adhere to the tunnel sidewall to measure the vault of the tunnel. In the use state of the angle adjustment assembly, the angle adjustment assembly drives the ground penetrating radar to rotate around the axis of the rotating assembly, and the ground penetrating radar changes from being parallel to the ground to being perpendicular to the ground or other angles. The rotated ground penetrating radar can detect the waist of the tunnel arch or other positions, increasing the detectable positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a bottom view schematic diagram of the present utility model;

[0017] Figure 2 is a schematic diagram of the fixed frame structure;

[0018] Figure 3 is Figure 2 an enlarged view of the structure at position A of

[0019] Figure 4 is a cross-sectional view schematic diagram of the rotating disc.

[0020] Reference numerals: 1, fixed base; 2, telescopic device; 3, fixed frame; 4, rotating rod; 5, pressing rod; 6, handle; 7, fixed frame; 8, moving frame; 9, multi-stage telescopic rod; 10, first elastic member; 11, short rod; 12, long rod; 13, fixed disc; 14, rotating disc; 15, ratchet rack; 16, moving ring; 17, guide rod; 18, second elastic member; 19, limiting ring; 20, extension plate; 21, protective plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Embodiment 1

[0022] As Figures 1 - 4 shown, a ground penetrating radar detection auxiliary device proposed by the present utility model includes a fixed base 1, a telescopic device 2, a fixed frame 3, a rotating assembly, and an angle adjustment assembly. The upper end surface of the fixed base 1 is rotatably connected to the telescopic device 2 through a bearing; the telescopic device 2 is selected but not limited to a hydraulic cylinder; the telescopic end of the telescopic device 2 is rotatably connected to the fixed frame 3 through a pin; the rotating assembly is rotatably connected to the fixed frame 3; in the use state of the rotating assembly, with the pin connection with the fixed frame 3 as the center of rotation, one end of the rotating assembly rises while the other end descends, thereby driving the ground penetrating radar to closely adhere to the tunnel sidewall to measure the vault of the tunnel; the angle adjustment assembly is connected to the rotating assembly; in the use state of the angle adjustment assembly, the angle adjustment assembly drives the ground penetrating radar to rotate around the axis of the rotating assembly, and the rotated ground penetrating radar can detect the waist of the tunnel arch, increasing the detectable positions;

[0023] In an alternative embodiment, a plurality of equally spaced and uniformly distributed extension plates 20 are rotatably connected to the pin shaft or hinge on the fixed base 1, and the extension plates 20 are slidably connected in the storage groove formed on the fixed base 1; after the extension plates 20 are rotated out of the storage groove, the extension plates 20 can be connected to the vehicle body or other devices through bolts. When there is no connection, the contact area between the fixed base 1 and the ground can also be increased by manual stepping to enhance stability.

[0024] Embodiment II

[0025] As Figures 1 - 3 shown, a ground penetrating radar detection auxiliary device proposed by the present utility model. Compared with Embodiment I, the detailed structure of the rotating assembly is described in this embodiment. The rotating assembly includes a rotating rod 4, a pressing rod 5, a handle 6, a fixed frame 7 and a fitting assembly. The rotating rod 4 is rotatably connected to the fixed frame 3 through a pin shaft; a plurality of through holes uniformly distributed in the vertical direction are formed on the fixed frame 3 for adjusting the position of the rotating rod 4 on the fixed frame 3;

[0026] The pressing rod 5 is rotatably connected to the hinge seat at the end of the rotating rod 4 away from the ground penetrating radar, and a handle 6 is connected to the pressing rod 5; a rubber anti-slip layer is sleeved on the handle 6; the fixed frame 7 is connected to the end of the rotating rod 4 away from the pressing rod 5, and the fixed frame 7 is connected to the ground penetrating radar; a fixed block is connected to the end of the fixed frame 7 close to the rotating rod 4, and the fixed block has an angle such that there is an included angle between the fixed frame 7 and the rotating rod 4; the fitting assembly is connected to the fixed frame 7; in the use state of the fitting assembly, the fitting assembly drives the ground penetrating radar to closely adhere to the wall and be parallel to the wall.

[0027] The fitting assembly includes a moving frame 8, a multi-stage telescopic rod 9 and a first elastic member 10. The moving frame 8 is arranged in parallel with the fixed frame 7. A plurality of multi-stage telescopic rods 9 are equally spaced and uniformly distributed. Both ends of the multi-stage telescopic rod 9 are rotatably connected to the fixed frame 7 and the moving frame 8 through hinge seats. The number of the first elastic members 10 corresponds to that of the multi-stage telescopic rods 9, and the first elastic members 10 are sleeved on the outer sides of the multi-stage telescopic rods 9; the first elastic members 10 are selected as springs;

[0028] In an alternative embodiment, a guard plate 21 inclinedly arranged is connected to the side wall of the moving frame 8; the guard plate 21 shields the moving frame 8 when it moves, preventing foreign objects from the outside from blocking and damaging the ground penetrating radar;

[0029] In an alternative embodiment, the rotating rod 4 includes a short rod 11 and a long rod 12. A fixed column is connected between the short rod 11 and the long rod 12. One end of the fixed column is rotatably connected to the short rod 11 through a bearing. One end of the short rod 11 is connected to the fixed frame 7, and the long rod 12 is rotatably connected to the fixed frame 3; the intermediate rotational connection between the short rod 11 and the long rod 12 facilitates the adjustment of their angles through an angle adjustment assembly.

[0030] Embodiment III

[0031] AsFigures 3 - 4 As shown in the figure, a geological radar detection auxiliary device proposed by the present utility model. Compared with the first embodiment, the detailed structure of the angle adjustment component is described in this embodiment. The angle adjustment component includes a fixed disk 13, a rotating disk 14 and a limit component. The fixed disk 13 is connected to one end of the long rod 12 close to the short rod 11. The rotating disk 14 is connected to the short rod 11. The rotating disk 14 is arranged parallel to the fixed disk 13. The limit component is connected to the fixed disk 13. In the use state of the limit component, the limit component restricts the self-rotation and angle change of the rotating disk 14 and the short rod 11, so that the rotating disk 14 and the short rod 11 are maintained at a fixed angle, so that the geological radar is maintained at a fixed height and angle to measure the tunnel.

[0032] The limit component includes a ratchet rack 15, a moving ring 16, a guide rod 17, a second elastic member 18 and a limit ring 19. The ratchet rack 15 is connected to the side of the rotating disk 14 close to the fixed disk 13. The moving ring 16 is arranged between the fixed disk 13 and the rotating disk 14. The moving ring 16 is sleeved outside the fixed column. A tooth groove meshing with the ratchet rack 15 is connected to the side of the moving ring 16 close to the rotating disk 14. A plurality of guide rods 17 are evenly distributed at equal intervals. One end of the guide rod 17 is connected to the moving ring 16, and the other end of the guide rod 17 is slidably connected to the rotating disk 14. The limit ring 19 is connected to the other end of the guide rod 17. The limit ring 19 is arranged parallel to the moving ring 16. The second elastic member 18 is sleeved outside the guide rod 17. Both ends of the second elastic member 18 are connected to the moving ring 16 and the fixed disk 13. The second elastic member 18 is selected as a spring.

[0033] In summary, when the present utility model is used, the staff moves the device onto the lifting platform or vehicle, unfolds the extension plate 20 and connects it to the vehicle or lifting platform to fix the fixed base 1. Then, the geological radar is installed on the moving frame 8. Pulling the handle 6 will drive the pressing rod 5 to move in the vertical direction, and then drive one end of the rotating rod 4 to rotate around the connection point on the fixed frame 3 as the center of the circle. One end of the rotating rod 4 installed with the geological radar rises close to the tunnel vault. As the rotating rod 4 continues to rotate, the fixed frame 7 and the geological radar approach the tunnel side wall. Through the push of the first elastic member 10 and the multi-stage telescopic rod 9, the geological radar is closely attached to the tunnel side wall to prevent gaps from causing errors in the measurement results. As the vehicle body or the lifting platform moves, the geological radar conducts detection. When it is necessary to measure the tunnel arch waist, control the handle 6 and the pressing rod 5 to rise and lower the fixed frame 7, and then rotate the short rod 11 to make it rotate. The ratchet rack 15 on the rotating disk 14 rotates accordingly and pushes the moving ring 16 to move in the length direction of the long rod 12. Through the elastic force of the second elastic member 18, the moving ring 16 is pushed to closely adhere to the ratchet rack 15. The direction rotation of the rotating disk 14 is restricted by the tooth groove on the moving ring 16, so that the fixed frame 7, the moving frame 8 and the geological radar are maintained at a fixed angle to measure the tunnel arch waist.

[0034] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the relevant technical field.

Claims

1. A geological radar detection auxiliary device, characterized in that: include A fixed base (1) is rotatably connected to a telescopic device (2), and a telescopic end of the telescopic device (2) is rotatably connected to a fixed frame (3); A rotating assembly is rotatably connected to a fixed frame (3); when the rotating assembly is in use, the rotating assembly rotates to drive the geological radar to be close to the side wall of the tunnel; The angle adjustment component is connected to the rotating component; when the angle adjustment component is in use, the angle adjustment component drives the geological radar to rotate about the axis of the rotating component.

2. A geological radar detection auxiliary device according to claim 1, characterized in that: The rotating assembly includes A rotating rod (4) rotatably connected to the fixed frame (3); A pressure rod (5) is rotatably connected to an end of the rotating rod (4) away from the geological radar, and a handle (6) is connected to the pressure rod (5); A fixed frame (7) connected to an end of the rotating rod (4) away from the pressure rod (5), and the fixed frame (7) is connected to the geological radar; The fitting component is connected to the fixing frame (7); when the fitting component is in use, the fitting component drives the geological radar to be close to the wall and parallel to the wall.

3. A geological radar detection auxiliary device according to claim 2, characterized in that: Fitting components include A movable frame (8) arranged parallel to the fixed frame (7); A plurality of multi-stage telescopic rods (9) are evenly distributed at equal intervals, and both ends of the multi-stage telescopic rods (9) are rotatably connected to the fixed frame (7) and the movable frame (8); The number of the first elastic members (10) corresponds to the number of the multi-stage telescopic rods (9), and the first elastic members (10) are sleeved on the outside of the multi-stage telescopic rods (9).

4. A geological radar detection auxiliary device according to claim 3, characterized in that: The rotating rod (4) comprises a short rod (11) and a long rod (12), the short rod (11) and the long rod (12) are rotatably connected, one end of the short rod (11) is connected to the fixed frame (7), and the long rod (12) is rotatably connected to the fixed frame (3).

5. A geological radar detection auxiliary device according to claim 4, characterized in that: Angle adjustment kit includes A fixed plate (13) connected to one end of the long rod (12) close to the short rod (11); A rotating disk (14) connected to the short rod (11), the rotating disk (14) being arranged in parallel with the fixed disk (13); The limiting assembly is connected to the fixed disk (13); when the limiting assembly is in use, the limiting assembly limits the rotation and angle change of the rotating disk (14) so ​​that the rotating disk (14) is maintained at a fixed angle.

6. A geological radar detection auxiliary device according to claim 5, characterized in that: The limiter components include A ratchet bar (15) connected to a side of the rotating disk (14) close to the fixed disk (13); A movable ring (16) is arranged between the fixed disk (13) and the rotating disk (14), and a tooth groove that meshes with the ratchet bar (15) is connected to the movable ring (16) on one side close to the rotating disk (14); A plurality of guide rods (17) are evenly spaced, one end of the guide rod (17) is connected to the moving ring (16), and the other end of the guide rod (17) is slidably connected to the rotating disk (14); A second elastic member (18) is sleeved on the outside of the guide rod (17), and two ends of the second elastic member (18) are connected to the movable ring (16) and the fixed plate (13); A limiting ring (19) is connected to the other end of the guide rod (17), and the limiting ring (19) is arranged in parallel with the moving ring (16).

7. A geological radar detection auxiliary device according to claim 1, characterized in that: A plurality of equally spaced extension plates (20) are rotatably connected to the fixed base (1), and the extension plates (20) are slidably connected to storage slots provided on the fixed base (1).

8. A geological radar detection auxiliary device according to claim 3, characterized in that: A protective plate (21) which is arranged obliquely is connected to the side wall of the moving frame (8).

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