Tunnel lining detection device based on geological radar

Abstract

The utility model discloses a tunnel lining detection device based on a geological radar, and belongs to the technical field of civil engineering test equipment. Comprising a radar detection trolley, a posture adjusting assembly, a folding pull-up assembly and a trolley, and the radar detection trolley is fixedly connected with the posture adjusting assembly through four vertical compression springs in the posture adjusting assembly; the posture adjusting assembly and the folding and lifting assembly are hinged through a leveling base hinge in the posture adjusting assembly and an upper supporting rod hinge in the folding and lifting assembly. The folding pull-up assembly is inserted into the rectangular barrel of the trolley through the lower end of the lower supporting rod of the folding pull-up assembly to be fixed. The device can be used in a tunnel with a bumpy ground, can ensure that the radar detection trolley is tightly attached to the surface of a tunnel top lining, can be folded, and is convenient to transport.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering testing equipment, and in particular relates to a tunnel lining detection device based on geological radar. Background Art

[0002] At present, when conducting quality inspection on tunnel top lining, geological radar non-destructive testing is usually used. The test personnel are lifted to a certain height by a lifting vehicle and then slowly move forward. The geological radar is manually lifted to detect the tunnel top lining. This detection method requires high-altitude work, which is not safe for the test personnel and has high labor intensity. When encountering potholes, not only is it difficult for the lifting vehicle to pass, but it is also difficult to ensure that the geological radar fits tightly with the surface of the tunnel top lining, resulting in inaccurate detection results.

[0003] Therefore, it is necessary to design a new type of tunnel lining radar detection device which has a simple structure, low cost, is easy to assemble and transport, and has strong site applicability. Utility Model Content

[0004] In view of the shortcomings existing in the background technology, the utility model proposes a tunnel lining detection device based on geological radar, which solves the problems existing in the prior art that the labor intensity of manually lifting the geological radar is high and it is difficult to ensure that the geological radar is in close contact with the surface of the tunnel top lining when the ground is uneven, resulting in inaccurate detection results.

[0005] A tunnel lining detection device based on geological radar, characterized in that it is composed of a radar detection trolley, a posture adjustment component, a folding and lifting component and a trolley; wherein the posture adjustment component includes a leveling base, a vertical compression spring, a hollow slide bar, a horizontal compression spring, a T-shaped slide bar, a limit ring and a leveling base hinge; four evenly distributed vertical compression springs are fixedly arranged on the upper surface of the leveling base, a hollow slide bar is fixed at the center position inside the leveling base, and slide grooves are symmetrically arranged on the left and right sides of the hollow slide bar, a horizontal compression spring is fixed at one end inside the hollow slide bar, and the other end of the horizontal compression spring is non-fixedly connected to the T-shaped slide bar, and the T-shaped end of the T-shaped slide bar is in the slide grooves on the left and right sides of the hollow slide bar The trolley slides in the middle, and limited circular rings are fixed at the left and right ends of the T-shaped end; a leveling base hinge is fixed at the bottom of the rear end of the leveling base; the radar detection trolley includes a radar fixed frame, rubber wheels and a geological radar, and the front end of the radar fixed frame is arc-shaped; four rubber wheels are fixed at the front and rear ends of the top; a geological radar is fixed at the center of the top, the radar detection trolley and the attitude adjustment component are elastically connected through four vertical compression springs in the attitude adjustment component, and the attitude adjustment component and the folding and pulling component are hinged through the leveling base hinge in the attitude adjustment component and the upper support rod hinge in the folding and pulling component; the folding and pulling component is inserted into the rectangular barrel of the trolley through the lower end of its lower support rod for fixation.

[0006] Furthermore, the folding and lifting assembly also includes an upper support rod, a strip-shaped plate-type lifting ear, a plate-type lifting ear, a tension spring, and a support rod hinge. On the side of the trolley's forward direction, the upper support rod is hinged to the upper part of the upper support rod, the strip-shaped plate-type lifting ear is fixed to the lower part of the upper support rod, and the upper end of the lower support rod is fixed with a plate-type lifting ear, and the strip-shaped plate lifting ear and the plate lifting ear are connected by a tension spring; on the side opposite to the forward direction of the trolley, the lower end of the upper support rod and the upper end of the lower support rod are hinged by a support rod hinge; the cross-sections of the upper support rod and the lower support rod are both rectangular.

[0007] Furthermore, the trolley also includes a vehicle plate, a trolley handle and rubber casters; a trolley handle is fixed to the surface of one end of the vehicle plate; a rectangular barrel is fixed to the middle surface of the vehicle plate, and the size of the rectangular barrel matches the lower support rod in the foldable lifting assembly; four evenly distributed rubber casters are fixed to the bottom of the vehicle plate.

[0008] The beneficial effects of the utility model are as follows: first, by providing a radar fixed frame with an arc-shaped front end, when performing detection, the radar detection vehicle can slide over obstacles along the arc surface of the front end of the frame, thereby improving the obstacle avoidance capability of the radar detection vehicle; by providing rubber wheels, the friction between the geological radar and the tunnel roof surface can be reduced during the detection process, thereby improving the moving speed during detection.

[0009] Secondly, by setting the posture adjustment component, the horizontal compression spring will generate a reaction force on the T-shaped slide bar after being compressed. Since the T-shaped end of the T-shaped slide bar is slidably connected to the leveling base, and the other end is hinged to the upper support rod, the T-shaped slide bar will generate an oblique upward force on the leveling base. This force works together with the force applied to the hinge of the leveling base by the upper end of the upper support rod, so that the leveling base can stably apply an upward force to the radar detection vehicle, and the free sliding of the T-shaped slide bar in the slide groove of the leveling base ensures the stability of the leveling base in the vertical direction; when the radar detection vehicle encounters an obstacle during its movement, the four vertical compression springs can ensure that the rubber wheels of the radar detection vehicle are in close contact with the surface of the tunnel roof lining.

[0010] In addition, by setting up a folding and pulling assembly, the upper and lower support rods form a lever. When encountering a bumpy road surface during the detection process, the tension degree of the tension spring can change with the change of the distance between the lower support rod and the tunnel ceiling lining, ensuring that the radar detection vehicle at the upper end of the upper support rod can be close to the surface of the tunnel ceiling lining; when the detection is completed, the tension spring is removed and the upper and lower support rods can be folded for easy transportation.

[0011] Since then, by setting up a trolley, the labor intensity of the test personnel can be reduced when conducting detection in tunnels with flat ground. When encountering a tunnel with potholes on the ground, the lower support rod is pulled out of the rectangular barrel, and the test personnel carry the lower support rod and walk to complete the detection work, which improves the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 For this utility model Figure 1 A top view of the radar detection vehicle in Figure 1;

[0014] Figure 3 For this utility model Figure 1 Bottom view of the radar detection vehicle in the figure;

[0015] Figure 4 For this utility model Figure 1 A main view enlarged diagram of point A;

[0016] Figure 5 For this utility model Figure 1 A in the figure is a top-down enlarged view;

[0017] Figure 6 For this utility model Figure 5 Sectional view at CC in FIG.

[0018] Figure 7 For this utility model Figure 1 Enlarged main view of point B in the figure.

[0019] Among them: 1- radar detection trolley, 11- radar fixed frame, 12- rubber wheel, 13- geological radar, 2- posture adjustment assembly, 21- leveling base, 22- vertical compression spring, 23- hollow slide bar, 24- horizontal compression spring, 25- T-type slide bar, 26- limiting ring, 27- leveling base hinge, 3- folding and lifting assembly, 31- upper support rod, 32- upper support rod hinge, 33- strip plate type lifting ear, 34- plate type lifting ear, 35- tension spring, 36- lower support rod, 37- support rod hinge, 4- trolley, 41- car plate, 42- trolley handle, 43- rectangular barrel, 44- rubber caster. DETAILED DESCRIPTION

[0020] Embodiment 1: A tunnel lining detection device based on geological radar, including a radar detection trolley 1, a posture adjustment component 2, a folding and lifting component 3 and a trolley 4. Among them, the radar detection trolley 1 includes a radar fixed frame 11, a rubber wheel 12 and a geological radar 13; the posture adjustment component 2 includes a leveling base 21, a vertical compression spring 22, a hollow slide bar 23, a horizontal compression spring 24, a T-shaped slide bar 25, a limit ring 26 and a leveling base hinge 27; the folding and lifting component 3 includes an upper support rod 31, an upper support rod hinge 32, a strip plate-type ear 33, a plate-type ear 34, a tension spring 35, a lower support rod 36 and a support rod hinge 37; the trolley 4 includes a car plate 41, a trolley handle 42, a rectangular tube 43 and a rubber caster 44. The front end of the radar fixed frame 11 is arc-shaped; four rubber wheels 12 are fixed at the front and rear ends of the top; and the geological radar 13 is fixed at the center of the top. By setting a radar fixed frame 11 with an arc-shaped front end, the radar detection vehicle 1 can slide over obstacles along the arc surface of the front end of the frame during detection, thereby improving the obstacle avoidance capability of the radar detection vehicle 1; by setting a rubber wheel 12, the friction between the geological radar 13 and the tunnel top lining surface during detection can be reduced, thereby improving the moving speed during detection. Four evenly distributed vertical compression springs 22 are fixed on the upper surface of the leveling base 21; a hollow slide bar 23 is fixed at the center position inside the leveling base 21, and slide grooves are symmetrically arranged on the left and right sides of the hollow slide bar 23. A horizontal compression spring 24 is fixed at one end of the hollow slide bar 23, and the other end of the horizontal compression spring 24 is non-fixedly connected to a T-shaped slide bar 25. The T-shaped end of the T-shaped slide bar 25 slides in the slide grooves on the left and right sides of the hollow slide bar 23, and limited position circular rings 26 are fixed at both ends of the T-shaped end; a leveling base hinge 27 is fixed at the bottom of the rear end of the leveling base 21. The radar detection trolley 1 is elastically connected to the posture adjustment assembly 2 through four vertical compression springs 22 in the posture adjustment assembly 2. An upper support rod hinge 32 is fixed to the upper end of the upper support rod 31, a strip plate-type lifting ear 33 is fixed to the lower end of the upper support rod 31, and a plate-type lifting ear 34 is fixed to the upper end of the lower support rod 31. The strip plate-type lifting ear 33 and the plate-type lifting ear 34 are connected through a tension spring 35; on the side opposite to the forward direction of the trolley 4, the lower end of the upper support rod 31 and the upper end of the lower support rod 36 are hinged through a support rod hinge 37; the lower end of the lower support rod 36 is fixed by being inserted into the rectangular barrel 43 of the trolley 4, and the cross-sections of the upper support rod 31 and the lower support rod 36 are both rectangular.

[0021] The posture adjustment component 2 and the folding and lifting component 3 are hingedly connected via a leveling base hinge 27 in the posture adjustment component 2 and an upper support rod hinge 32 in the folding and lifting component 3 . By setting the posture adjustment component 2, the horizontal compression spring 24 will generate a reaction force on the T-shaped slide bar 25 after being compressed. Since the T-shaped end of the T-shaped slide bar 25 is slidably connected to the leveling base 21, and the other end is hinged to the upper support rod 31, the T-shaped slide bar 25 will generate an oblique upward force on the leveling base 21. This force works together with the force applied to the leveling base hinge 27 by the upper end of the upper support rod 31, so that the leveling base 21 can stably apply an oblique upward force to the radar detection vehicle 1, and the free sliding of the T-shaped slide bar 25 in the leveling base slide groove ensures the stability of the leveling base 21 in the vertical direction; when the radar detection vehicle 1 encounters an obstacle during its travel, the four vertical compression springs 22 can ensure that the rubber wheel 12 of the radar detection vehicle 1 is in close contact with the tunnel roof lining surface. A foldable lifting assembly 3 is provided, and the upper and lower support rods form a lever. When a bumpy road surface is encountered during the detection process, the tension degree of the tension spring 35 can change with the change of the distance between the lower support rod 36 and the tunnel ceiling lining, thereby ensuring that the radar detection vehicle 1 at the upper end of the upper support rod 31 can be close to the surface of the tunnel ceiling lining; when the detection is completed, the tension spring 35 is removed and the upper and lower support rods are folded for easy transportation.

[0022] A trolley handle 42 is fixed on one end of the trolley plate 41; a rectangular barrel 43 is fixed on the middle surface of the trolley plate 41, and the size of the rectangular barrel 43 matches the lower support rod 36 in the foldable pull-up assembly 3; four symmetrically distributed rubber casters 44 are fixed on the bottom of the trolley plate 41. When the trolley 4 is used for detection in a tunnel with a flat ground, the labor intensity of the test personnel can be reduced. When encountering a tunnel with a bumpy ground, the lower support rod 36 is pulled out of the rectangular barrel 43, and the test personnel walk to complete the detection work while holding the lower support rod 36, which improves the applicability of the device.

Claims

1. A tunnel lining detection device based on geological radar, characterized in that: It is composed of a radar detection trolley, a posture adjustment component, a folding and lifting component and a trolley; wherein the posture adjustment component includes a leveling base, a vertical compression spring, a hollow slide bar, a horizontal compression spring, a T-shaped slide bar, a limit ring and a leveling base hinge; four evenly distributed vertical compression springs are fixed on the upper surface of the leveling base, a hollow slide bar is fixed at the center position inside the leveling base, and slide grooves are symmetrically arranged on the left and right sides of the hollow slide bar, a horizontal compression spring is fixed at one end of the hollow slide bar, and the other end of the horizontal compression spring is non-fixedly connected to the T-shaped slide bar, and the T-shaped end of the T-shaped slide bar slides in the slide grooves on the left and right sides of the hollow slide bar, and the left and right sides of the T-shaped end A limited position ring is fixed at the end; a leveling base hinge is fixed at the bottom of the rear end of the leveling base; the radar detection trolley includes a radar fixed frame, rubber wheels and a geological radar, and the front end of the radar fixed frame is arc-shaped; four rubber wheels are fixed at the front and rear ends of the top; a geological radar is fixed at the center of the top, the radar detection trolley and the attitude adjustment component are elastically connected through four vertical compression springs in the attitude adjustment component, and the attitude adjustment component and the folding and pulling component are hinged through the leveling base hinge in the attitude adjustment component and the upper support rod hinge in the folding and pulling component; the folding and pulling component is inserted into the rectangular barrel of the trolley through the lower end of its lower support rod for fixation.

2. A tunnel lining detection device based on geological radar as claimed in claim 1, characterized in that The folding and lifting assembly also includes an upper support rod, a strip-shaped plate-type lifting ear, a plate-type lifting ear, a tension spring, and a support rod hinge. On the side of the trolley's forward direction, the upper support rod is hinged to the upper part of the upper support rod, the strip-shaped plate-type lifting ear is fixed to the lower part of the upper support rod, and the upper end of the lower support rod is fixed with a plate-type lifting ear, and the strip-shaped plate-shaped lifting ear and the plate-type lifting ear are connected by a tension spring; on the side opposite to the forward direction of the trolley, the lower end of the upper support rod and the upper end of the lower support rod are hinged by a support rod hinge; the cross-sections of the upper support rod and the lower support rod are both rectangular.

3. A tunnel lining detection device based on geological radar as claimed in claim 1, characterized in that The trolley also includes a trolley plate, a trolley handle and rubber casters; the trolley handle is fixed on the surface of one end of the trolley plate; a rectangular barrel is fixed on the surface of the middle of the trolley plate, and the size of the rectangular barrel matches the lower support rod in the foldable lifting component; four evenly distributed rubber casters are fixed on the bottom of the trolley plate.

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