Water tunnel top and side crack detection device

Abstract

The utility model discloses a device for detecting cracks on the top and side surfaces of a water tunnel. The device comprises a mobile vehicle, a detecting device for detecting the cracks and a lifting driving mechanism for driving the detecting device to vertically lift, the mobile vehicle comprises a plurality of wheels and a base; the lifting driving mechanism is arranged on the base, and the power output end of the lifting driving mechanism is provided with a rotating part used for adjusting the detection angle of the detector; the detection device comprises a detection element, a plurality of crawler wheels and a telescopic rod group; the sliding faces of the crawler wheels protrude out of the detection side face of the detection element and are used for sliding on the top face or the side face of a tunnel. And one end of the telescopic rod group is connected with the detection part, and the other end of the telescopic rod group is connected with the rotating part. The device can conveniently detect the top and side cracks of the water tunnel, is simple and convenient to operate, and is beneficial to improving the efficiency.

Description

Technical Field

[0001] The utility model relates to a tunnel detection device, in particular to a crack detection device for the top and side surfaces of a water conveyance tunnel. Background Art

[0002] The safe operation of the water diversion and conveyance tunnel is related to the safe allocation of the entire water diversion project. Due to the complex geological conditions and long-term erosion by water pressure, cracks are inevitable in the water conveyance tunnel. Therefore, it is of great significance to timely and accurately detect the cracks in the water conveyance tunnel.

[0003] At present, ground penetrating radar can detect cracks in the bottom area of the tunnel, but it is difficult to detect cracks on the top or side surfaces. For the detection of cracks on the top or side surfaces, most of them are detected by manually lifting equipment. Such a detection method has a low degree of intelligence, low efficiency, and lack of stability. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a crack detection device for the top and side surfaces of a water conveyance tunnel. The device can conveniently detect cracks on the top and side surfaces of the water conveyance tunnel, and is simple and convenient to operate, which is beneficial to improving efficiency. Compared with manually lifting equipment, it has better stability, thus being beneficial to improving the detection accuracy.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A crack detection device for the top and side surfaces of a water conveyance tunnel, characterized in that it includes a mobile vehicle, a detection device for detecting cracks, and a lifting drive mechanism for driving the detection device to vertically lift.

[0007] The mobile vehicle includes a plurality of wheels and a base; the lifting drive mechanism is arranged on the base, and a rotating component for adjusting the detection angle of the detection device is arranged at the power output end of the lifting drive mechanism.

[0008] The detection device includes a detection element, a plurality of crawler wheels, and a telescopic rod group with a telescopic function; the sliding surfaces of the plurality of crawler wheels protrude from the detection side surface of the detection element and are used for sliding on the top or side surface of the tunnel; one end of the telescopic rod group is connected to the detection device, and the other end is connected to the rotating component.

[0009] A preferred solution of the utility model, the lifting drive mechanism includes a seat body, an outer telescopic arm, an inner telescopic arm, a pneumatic cylinder, a power supply, and a control box; the outer telescopic arm and the pneumatic cylinder are arranged on the seat body, and the seat body is fixed on the base; a slider is arranged inside the outer telescopic arm, and the inner telescopic arm is embedded inside the outer telescopic arm; the rotating component is arranged at the outer end of the inner telescopic arm.

[0010] A preferred embodiment of the present utility model, the rotating component includes a support, a rotating connector, and a locking assembly for locking or loosening the rotating connector; the support includes a support plate and two side plates, the two side plates are oppositely arranged on the support plate, and the support plate is fixedly connected to the power output end of the lifting drive mechanism;

[0011] The rotating connector includes a rotating block and a connecting block, the rotating block is rotatably connected between the two side plates through a rotating shaft, the connecting block is arranged on the rotating block, and the telescopic rod group is fixedly connected to the rotating block.

[0012] Preferably, the locking assembly includes a lock;

[0013] One end of the rotating shaft extends out of the side plate; one end of the lock has two oppositely arranged rotating ears, and a mating gap is formed between the two rotating ears; the end of the rotating shaft extending out of the side plate is located in the mating gap, and the two rotating ears and the rotating shaft are rotatably connected through a rotating pin; the rotating ear and the rotating pin are eccentrically arranged.

[0014] Preferably, first toothed plates are provided on the opposite sides of the two side plates; second toothed plates are provided on the corresponding sides of the rotating block and the two side plates; the teeth on the first toothed plate and the second toothed plate cooperate with each other.

[0015] A preferred embodiment of the present utility model, the telescopic rod group includes a plurality of telescopic rods, and the plurality of telescopic rods are sleeved together in sequence to achieve the telescopic function, and a locking ring structure is provided at the upper end of each sleeve rod.

[0016] A preferred embodiment of the present utility model, the detection device further includes a sleeve frame and a buckle, and the detection element is arranged on the sleeve frame; there are four buckles, located on the four sides of the sleeve frame, and the buckles are used to fasten the detection element in the sleeve frame.

[0017] A preferred embodiment of the present utility model further includes a lidar device for collecting tunnel point cloud data;

[0018] The lidar device is arranged on the base through a fixing rod.

[0019] A preferred embodiment of the present utility model further includes a platform frame; the platform frame includes a bottom frame and a platform, the bottom frame is arranged on the base, and the platform is arranged on the bottom frame;

[0020] The lifting drive mechanism is arranged within the range of the bottom frame and partially located below the platform, and a part of the lifting drive mechanism passes through the platform and then is connected to the telescopic rod group.

[0021] A preferred embodiment of the present utility model further includes a support frame; the support frame is disposed on the base, and a computer is provided on the support frame; a handle is provided on the outer side of the support frame.

[0022] The present utility model has the following beneficial effects compared with the prior art:

[0023] The detection device in the present utility model can be lifted, rotated, and telescoped in length, making the adjustment of the detection position of the detection device more flexible. Especially for the crack measurement on the top surface and side surface of the tunnel, after the detection device is adjusted in place, the mobile vehicle can be pushed to conduct the detection, which is convenient to operate and has good stability, and is beneficial to improving the detection effect and accuracy. In addition, the detection device is provided with crawler wheels for sliding in contact with the detection surface, which is beneficial to solving the problem of uneven pits on the detection surface and making the detection process more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0025] Figure 2 is a top view of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0026] Figure 3 is a front view of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model (the rotating component is in a vertical state).

[0027] Figure 4 is a front view of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model (the rotating component is in a certain angle state).

[0028] Figure 5 is a perspective view of the detection device of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0029] Figure 6 is a perspective view of the rotating component of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0030] Figure 7 is a perspective view of the lifting drive mechanism of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0031] Figure 8 is a perspective view of the platform frame of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0032] Figure 9 is a perspective view of the lidar device of the device for detecting cracks on the top and side surfaces of the water conveyance tunnel of the present utility model.

[0033] Figure 10A perspective view of the computer and support frame of the water conveyance tunnel top and side crack detection device of the present utility model.

[0034] Figure 11 A perspective view of the mobile vehicle of the water conveyance tunnel top and side crack detection device of the present utility model.

[0035] Figure 12 A schematic diagram of the water conveyance tunnel top and side crack detection device of the present utility model when detecting in the tunnel. Detailed implementation manners

[0036] The present utility model will be further described below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present utility model are not limited thereto.

[0037] Refer to Figures 1-12 , this embodiment discloses a water conveyance tunnel top and side crack detection device, including a mobile vehicle 7, a detection device 1 for detecting cracks, a lifting drive mechanism 3 for driving the detection device 1 to lift vertically, a lidar device 5 for collecting tunnel point cloud data, a platform frame 4 and a support frame 6. The mobile vehicle 7 includes a plurality of wheels 71 and a base 72. The wheels 71 are distance measuring wheels and can measure the moving distance of the mobile vehicle 7. The lifting drive mechanism 3 is arranged on the base 72, and a rotating member 2 for adjusting the detection angle of the detection device 1 is provided at the power output end of the lifting drive mechanism 3. One end of the telescopic rod group is connected to the detection device 1, and the other end is connected to the rotating member 2. The detection device 1 includes a detection element, a plurality of crawler wheels 11 and a telescopic rod group. The sliding surfaces of the plurality of crawler wheels 11 protrude from the detection side surface of the detection element and are used for sliding on the top or side surface of the tunnel. One end of the telescopic rod group is connected to the detection device 1, and the other end is connected to the rotating member 2.

[0038] Further, the lifting drive mechanism 3 includes a seat body 34, an outer telescopic arm 32, an inner telescopic arm 31, a pneumatic cylinder 33, a power supply 35 and a control box 36. The outer telescopic arm 32 and the pneumatic cylinder 33 are arranged on the seat body 34, and the seat body 34 is fixed on the base 72. A slider is arranged inside the outer telescopic arm 32, and the inner telescopic arm 31 is embedded inside the outer telescopic arm 32. The rotating member 2 is arranged at the outer end of the inner telescopic arm 31. Specifically, the power supply 35 provides power for the pneumatic cylinder 33. Under the action of the pneumatic cylinder 33, the inner telescopic arm 31 rises and falls in the outer telescopic arm 32, thereby driving the rotating member 2 and the detection device 1 to rise and fall, realizing the height control and adjustment of the detection device 1. The control box 36 is used for controlling the lifting height and switches, etc. In addition, the lifting drive mechanism 3 of this embodiment can also refer to drive mechanisms such as electric cylinders, electric push rods, and motors in the prior art.

[0039] Further, the rotating component 2 includes a support, a rotating connector, and a locking assembly for locking or releasing the rotating connector; the support includes a support plate 24 and two side plates 23, the two side plates 23 are relatively arranged on the support plate 24, and the support plate 24 is fixedly connected to the power output end of the lifting drive mechanism 3, that is, the outer end of the inner telescopic arm 31 of this embodiment. The rotating connector includes a rotating block 22 and a connecting block 21, the rotating block 22 is rotatably connected between the two side plates 23 through a rotating shaft 26, the connecting block 21 is arranged on the rotating block 22, and the telescopic rod group is fixedly connected to the rotating block 22.

[0040] Furthermore, the locking assembly includes a lock buckle 25; one end of the rotating shaft 26 extends out of the side plate 23; one end of the lock buckle 25 is provided with two oppositely arranged rotating ears 29, and a fitting gap is formed between the two rotating ears 29; the end of the rotating shaft 26 extending out of the side plate 23 is located in the fitting gap, and the two rotating ears 29 are rotatably connected to the rotating shaft 26 through a rotating pin; the rotating ear 29 and the rotating pin are eccentrically arranged.

[0041] When the rotary connector needs to be locked after being rotated to a specified angle, the lock buckle 25 is moved to allow the eccentric protruding end of the rotating ear 29 to press against the side plate 23, thereby causing the distance between the two side plates 23 to shrink, thereby locking the rotating block 22 of the rotary connector. Figure 6 25 is shown in the state of the lock 25 in the figure. When the rotary connector needs to be loosened, the lock 25 is directly bent downward to make the non-eccentric end of the rotating ear 29 abut against the side plate 23, so that the side plate 23 is not squeezed, thereby achieving the loosening of the rotating block 22, and the rotary connector can be rotated to adjust the angle of the detection device 1. In order to improve the clamping and locking effect of the two side plates 23 on the rotating block 22, a disc or other structural component larger than the circular hole of the side plate 23 can be set at the other end of the rotating shaft 26, so that the clamping effect of the two side plates 23 can be better when the eccentric protruding end of the rotating ear 29 abuts against the side plate 23.

[0042] Furthermore, first tooth plates 27 are provided on opposite sides of the two side plates 23; second tooth plates 28 are provided on corresponding sides of the rotating block 22 and the two side plates 23; and the gear teeth on the first tooth plate 27 and the second tooth plate 28 cooperate with each other. By providing the first tooth plate 27 and the second tooth plate 28, the position locking effect between the rotating block 22 and the side plates 23 can be further improved, and the rotating connector and the detection device 1 can be prevented from moving out of position.

[0043] Further, the telescopic rod group includes a plurality of telescopic rods 14, and the plurality of telescopic rods 14 are sleeved together in sequence to achieve the telescopic function, and a locking ring structure 15 is provided at the upper end of each sleeve rod. In this embodiment, the locking ring structure 15 can refer to the prior art and is mainly a structure for locking the position of the inner telescopic rod 14. For example, the locking ring structure 15 can include a locking ring and a screw. The locking ring is arranged at the upper end of the telescopic rod 14, and the screw is in threaded cooperation with the locking ring and its end extends into the inner cavity of the telescopic rod 14 after passing through the locking ring. When locking, the outer wall of the inner telescopic rod 14 is tightened by the end of the screw, and the length of the telescopic rod 14 can be locked.

[0044] Further, the detection device 1 further includes a sleeve frame 12 and a buckle 13. The detection element is arranged on the sleeve frame 12, and the specification of the detection element can be set to just fit on the sleeve frame 12; there are four buckles 13, which are located on the four sides of the sleeve frame 12, and the buckles 13 are used to fasten the detection element in the sleeve frame 12. When the buckle 13 is pressed inward, the buckle 13 will be folded inward by 90°, thus forming a close fit with the detection element inside the sleeve frame 12, so that the detection element cannot move, realizing locking and fixing. The buckle 13 in this embodiment can refer to the prior art. Of course, other buckle structures can also be used to lock and fix the detection element. There are four crawler wheels 11 in this embodiment, two in a group, which are arranged on two opposite side surfaces of the sleeve frame 12. In addition, the detection element in this embodiment can be a ground penetrating radar.

[0045] The lidar device 5 in this embodiment is arranged on the base 72 through a fixing rod 8. Specifically, the lidar device 5 in this embodiment is arranged at the front end of the base 72 to more accurately collect and locate the position of the tunnel.

[0046] The platform frame 4 in this embodiment includes a base frame 41 and a platform 42. The base frame 41 is arranged on the base 72, and the platform 42 is arranged on the base frame 41. The lifting drive mechanism 3 is arranged within the range of the base frame 41 and partially located below the platform 42, and a part of the lifting drive mechanism 3 passes through the platform 42 and is connected to the telescopic rod group. Specifically, the seat body 34, the outer telescopic arm 32, the pneumatic cylinder 33, the power supply 35 and the control box 36 in the lifting drive mechanism 3 are all located below the platform 42, and the inner telescopic arm 31 passes through the platform 42 and is connected to the telescopic rod group. An avoidance hole is provided on the platform 42 for the inner telescopic arm 31 to pass through.

[0047] Further, a ladder 43 is also arranged on the base 72 of the mobile vehicle 7, which can be used for the detection personnel to climb from the base 72 to the platform 42, so as to manually adjust the angle of the detection element and the length of the telescopic rod group.

[0048] The support frame 6 of this embodiment is arranged on the base 72, and a computer 9 is provided on the support frame 6; a handle 61 is provided on the outer side of the support frame 6. As Figure 1 and Figure 10 shown, the setting of the support frame 6 facilitates the placement of the computer 9 for the detection personnel to perform electronic operations. The computer 9 can also transmit data with the detection element and the lidar device 5. After being processed and analyzed by the software in the computer 9, the detection situation can be understood in real time. The setting of the handle 61 facilitates the detection personnel to hold, so as to push the device forward. The computer 9 of this embodiment can be a notebook computer, a desktop computer or other devices with functions such as data processing and analysis.

[0049] The working principle of the crack detection device for the top and side surfaces of the water conveyance tunnel in this embodiment is roughly as follows:

[0050] (1) Two control points are arranged at each of the inlet and outlet openings, and accurate absolute geographical coordinate results are obtained by using GNSS static measurement. Then, the mobile vehicle 7 is successively pushed directly above the two control points. The center of the 3D laser scanner on the mobile vehicle 7 is aligned with the control points, and then the coordinate values and the parameter values for data processing are input. The software data center of the computer 9 will perform data processing according to the measured values. A 3D laser scanner should also be provided on the mobile vehicle 7 in this embodiment to achieve the above functions.

[0051] (2) Detecting survey lines for the top and side surfaces are planned and arranged in the tunnel.

[0052] (3) After the detection device of this embodiment enters the tunnel, according to the width of the tunnel, the detection element is extended to a certain length through the telescopic rod group, and the detection device 1 is raised to an appropriate height through the lifting drive mechanism 3 so that it fits the top detection survey line. Then, the mobile vehicle 7 is slowly pushed to detect the cracks on the top.

[0053] (4) Obtain the crack detection data detected by the detection element in the detection device 1 and the 3D point cloud data of the tunnel interior obtained by the lidar device 5.

[0054] (5) The software data center of the computer 9 performs data processing and displays the coordinates of the detection center and the 3D model of the tunnel in real time.

[0055] (6) At this time, the 3D model of the tunnel and the geological structure of the detected tunnel area will be displayed on the display of the computer 9, so as to discover and locate geological conditions such as fissures, cavities, and density.

[0056] (7) After controlling the detection device 1 to rise or fall to an appropriate height through the lifting drive mechanism 3, the rotation component 2 is used to adjust the angle of the detection device 1 so that it rotates to the planned detection line on the side of the tunnel, and the telescopic rod group is combined to make the detection element fit the detection surface; similarly, the mobile vehicle 7 is pushed to perform crack detection on the side.

[0057] (8) After all the detection lines in the tunnel are detected, the device is pushed out of the tunnel entrance and pushed to the other two control points at the tunnel entrance respectively. By inputting the coordinates of the control points, the computer 9 will perform data adjustment according to the closed adjustment theory to obtain a more accurate three-dimensional model of the tunnel and the accurate coordinates of the geological structure.

[0058] The crack detection device for the top and side of the water conveyance tunnel in this embodiment has telescopic and lifting functions. Through the telescopic rod group and the lifting drive mechanism 3, the height and angle can be adjusted to appropriate positions according to the height of the tunnel and the position of the detection line. And under the action of the lifting drive mechanism 3, the detection element is more stable and reliable and not easy to fall down. It can also collect three-dimensional point cloud data through the three-dimensional laser point cloud scanning function, and can measure the coordinates of the radar center in real time. If cracks are found, the coordinates of the cracks can be accurately located. At the same time, the measured radar image and the indoor three-dimensional point cloud data can be combined, the three-dimensional point cloud can be processed into an indoor three-dimensional model, and the radar image can be superimposed to display the size, depth and position of the cracks in the model; the whole model has absolute geographical coordinates, and the computer 9 can input parameters, set data processing algorithm values and display the results.

[0059] The above is the preferred embodiment of the present invention, but the embodiments of the present invention are not limited to the above content. Any other changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A device for detecting cracks on the top and side of a water conveyance tunnel, characterized in that: It comprises a mobile vehicle, a detection device for detecting cracks, and a lifting drive mechanism for driving the detection device to vertically lift; The mobile vehicle comprises a plurality of wheels and a base; the lifting drive mechanism is arranged on the base, and a rotating component for adjusting the detection angle of the detection device is provided at the power output end of the lifting drive mechanism; The detection device comprises a detection element, a plurality of track wheels and a telescopic rod group with a telescopic function; The sliding surfaces of several track wheels protrude from the detection side surface of the detection element and are used for sliding on the top surface or side surface of the tunnel; one end of the telescopic rod group is connected to the detection element, and the other end is connected to the rotating component.

2. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: The lifting drive mechanism includes a seat body, an outer telescopic arm, an inner telescopic arm, a pneumatic cylinder, a power supply and a control box; the outer telescopic arm and the pneumatic cylinder are arranged on the seat body, and the seat body is fixed on the base; a slider is provided in the outer telescopic arm, and the inner telescopic arm is embedded in the outer telescopic arm; the rotating component is arranged at the outer end of the inner telescopic arm.

3. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: The rotating component includes a support, a rotating connector and a locking assembly for locking or loosening the rotating connector; the support includes a support plate and two side plates, the two side plates are relatively arranged on the support plate, and the support plate is fixedly connected to the power output end of the lifting drive mechanism; The rotary connector comprises a rotary block and a connecting block. The rotary block is rotatably connected between the two side plates via a rotating shaft. The connecting block is arranged on the rotary block. The telescopic rod group is fixedly connected to the rotary block.

4. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 3, characterized in that: The locking assembly includes a lock buckle; One end of the rotating shaft extends out of the side plate; one end of the lock buckle is provided with two oppositely arranged rotating ears, and a fitting gap is formed between the two rotating ears; the end of the rotating shaft extending out of the side plate is located in the fitting gap, and the two rotating ears are rotatably connected to the rotating shaft through a rotating pin; the rotating ear and the rotating pin are eccentrically arranged.

5. The device for detecting cracks on the top side of a water conveyance tunnel according to claim 3 or 4, characterized in that: The opposite sides of the two side plates are each provided with a first tooth plate; the corresponding sides of the rotating block and the two side plates are each provided with a second tooth plate; the gear teeth on the first tooth plate and the second tooth plate cooperate with each other.

6. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: The telescopic rod group comprises a plurality of telescopic rods, which are sleeved together in sequence to realize the telescopic function, and the upper end of each sleeve rod is provided with a locking ring structure.

7. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: The detection device further comprises a sleeve frame and a buckle, and the detection element is arranged on the sleeve frame; four buckles are provided and located at four sides of the sleeve frame, and the buckles are used to buckle the detection element in the sleeve frame.

8. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: It also includes a laser radar device for collecting tunnel point cloud data; The laser radar device is arranged on the base through a fixing rod.

9. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: It also includes a platform frame; the platform frame includes a base frame and a platform, the base frame is arranged on the base, and the platform is arranged on the base frame; The lifting drive mechanism is arranged in the range of the base frame, and a part of it is located below the platform. A part of the lifting drive mechanism passes through the platform and is connected to the telescopic rod group.

10. The device for detecting cracks on the top and side of a water conveyance tunnel according to claim 1, characterized in that: It also includes a support frame; the support frame is arranged on the base, and a computer is arranged on the support frame; a handle is arranged on the outer side of the support frame.

Images