Underground karst cave visual detection device

Abstract

The utility model belongs to the technical field of underground karst cave detection, and particularly relates to an underground karst cave visual detection device which comprises a transparent protective shell, a camera, a rotating frame and a driving motor I used for driving the rotating frame to rotate are arranged in the transparent protective shell, and the driving motor I is fixedly installed on the inner wall of the top side of the transparent protective shell. The rotating frame comprises a horizontal plate I and two vertical plates which are fixedly connected to the horizontal plate I and are oppositely arranged, an illuminating lamp and two rotating shafts which are oppositely arranged are fixedly connected to the outer wall of the camera, the ends, away from the camera, of the two rotating shafts are rotationally connected to the corresponding vertical plates, and one rotating shaft is coaxially and fixedly connected with a driven gear; a driving motor II is fixedly installed on the rotating frame, and the output end of the driving motor II is coaxially and fixedly connected with a driving gear meshed with the driven gear. According to the utility model, the camera can rotate around the vertical shaft and the horizontal shaft, so that the shooting angle is adjusted, the shooting range is enlarged, and the understanding of the full view of the underground karst cave is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground karst cave detection, and in particular relates to a visual detection device for underground karst caves. Background Art

[0002] In the geological and geomorphological environment where karst landforms are common, such as in Guizhou and other places, underground caves are common, which causes great trouble to the foundation construction of construction projects. It is necessary to treat the underground caves before carrying out foundation construction. However, the size of the caves, the development of cracks, and the filling materials inside are different, and the corresponding cave treatment methods are also different. Therefore, it is necessary to detect the caves before treating them to understand the development of the caves.

[0003] Geological exploration drilling is to drill a hole underground through a geological exploration drill, and use a drill rod and a corer to take a core analysis of the underground geological conditions. This method can only survey the location and depth of the cave at that point, but cannot explore the specific development of the cave. Therefore, the optimized cave detection method is to lower the detection structure into the cave through a geological exploration hole or a pile foundation hole. The detection structure is generally based on a camera, which uses the camera to upload the picture inside the underground cave to the ground so that the staff can judge the development of the underground cave. However, in traditional detection structures, the camera is usually fixedly installed, with a fixed shooting angle and a limited shooting range, which is not conducive to collecting development information of underground caves. Utility Model Content

[0004] The utility model aims to provide an underground cave visualization detection device to solve the problem of fixed camera shooting angle in traditional detection structure.

[0005] In order to achieve the above-mentioned purpose, the scheme of the utility model is: a kind of underground cave visualization detection device, including a transparent protective shell, in which a camera, a rotating frame and a driving motor I for driving the rotating frame to rotate are arranged, and the driving motor I is fixedly installed on the top inner wall of the transparent protective shell, and the rotating frame includes a horizontal plate I and two vertical plates fixedly connected to the horizontal plate I and arranged oppositely, and an illuminating lamp and two rotating shafts arranged oppositely are fixedly connected to the outer wall of the camera, and one end of the two rotating shafts away from the camera is rotatably connected to the corresponding vertical plate, and a rotating shaft is coaxially fixedly connected with a driven gear, and a driving motor II is fixedly installed on the rotating frame, and the output end of the driving motor II is coaxially fixedly connected with a driving gear meshing with the driven gear.

[0006] The working principle and beneficial effects of this solution are as follows: In this solution, the rotation of the rotating frame is achieved by driving motor I, so as to realize the rotation of the camera around the vertical axis. The rotation of the camera around the horizontal axis is achieved by driving motor II. In this way, the shooting angle of the camera is adjustable, and it can shoot the circumferential rock wall of the underground karst cave 360°, with a larger shooting range, which is more conducive to the staff to observe the development of the underground karst cave. Moreover, in this solution, under the protection of the transparent protective shell, the camera can enter the water for shooting, so that the staff can obtain the underwater development of the underground karst cave.

[0007] Optionally, the rotating frame further includes a horizontal plate II, which is located below the horizontal plate I, and the driving motor II is fixedly installed on the horizontal plate II.

[0008] In this solution, when the driving motor II is installed on the horizontal plate II, the distance between the two vertical plates can be reduced, thereby reducing the outer diameter of the transparent protective shell.

[0009] Optionally, the output end of the driving motor I is coaxial with the central axis of the camera when the camera is in the vertical state.

[0010] In this solution, when the camera rotates around the vertical axis driven by the driving motor I, the vertical axis is coaxial with the output end of the driving motor I, and the rotation radius of the camera around the vertical axis is the smallest.

[0011] Optionally, a distance sensor is fixedly connected to the camera.

[0012] In this solution, the distance sensor is used to detect the distance between the rock wall of the underground karst cave and the camera, as well as to detect the height of the underground karst cave, so that the staff can obtain the size information of the underground karst cave.

[0013] Optionally, the transparent protective shell includes a shell body and a shell cover. An opening is provided on the top wall of the shell body, and the shell cover is used to seal the opening, and the shell cover is detachably connected to the top end of the shell body. The driving motor I is fixedly installed on the shell cover.

[0014] In this solution, when the shell cover is removed from the shell body, the driving motor I and the rotating frame can be taken out of the shell body, which is convenient for maintenance.

[0015] Optionally, an annular support plate is fixedly connected to the inner peripheral wall of the shell body, and rolling friction members are provided between the two ends of the horizontal plate I and the annular support plate.

[0016] In this solution, the horizontal plate I is supported by the annular support plate, and the friction between the horizontal plate I and the annular support plate is rolling friction, with small friction. In this way, the rotating frame can rotate smoothly around the vertical axis in the shell body, so that the camera can rotate 360° around the vertical axis.

[0017] Optionally, the rolling friction member is a universal ball.

[0018] In this solution, the universal ball rolls flexibly, and the horizontal plate I can slide relative to the annular support plate dexterously.

[0019] Optionally, the shell cover is threadedly connected to the top end of the shell.

[0020] In this solution, the shell cover is threadedly connected to the top end of the shell, and the shell cover can be removed only by rotation, and the operation is simple.

[0021] Optionally, a wire hole is provided on the shell cover, and a rubber insulating tube is fixedly connected in the wire hole in a sealed manner.

[0022] In this solution, the rubber insulating tube has a certain strength and elasticity. The wire can be arranged in the rubber insulating tube, and the rubber insulating tube can be used as a rope to lower the transparent protective shell into the underground karst cave.

[0023] Optionally, the device further includes a lowering component, and the lowering component includes a Z-shaped mounting plate, a guide wheel, a pressing wheel, and a driving motor III for driving the guide wheel to rotate. A limiting plate is fixedly connected to the bottom end of the Z-shaped mounting plate, and a clamping groove for the pile foundation hole casing wall to be inserted into is formed between the limiting plate and the Z-shaped mounting plate; the guide wheel and the pressing wheel are both rotatably mounted on the top end of the Z-shaped mounting plate. A limiting ring groove for the rubber insulating tube to sink into is provided on the circumference of the guide wheel, and a pressing ring matched with the limiting ring groove is provided on the circumference of the pressing wheel. The distance between the pressing ring and the bottom wall of the limiting ring groove is smaller than the outer diameter of the rubber insulating tube.

[0024] In this solution, the clamping groove formed between the Z-shaped mounting plate and the limiting plate is clamped on the pile foundation hole casing wall, so as to fix the lowering component on the pile foundation hole casing wall. Since the rubber insulating tube is pressed tightly in the limiting ring groove by the pressing ring, during the rotation of the guide wheel, the rubber insulating tube moves under the action of static friction, so as to realize the lowering or lifting of the transparent protective shell, and avoid the staff from manually lowering or lifting the transparent protective shell. Description of the Drawings

[0025] Figure 1 It is a longitudinal partial sectional view of a visual detection device for underground karst caves in Embodiment 1 of the present invention;

[0026] Figure 2 It is a top view of the shell in Embodiment 1 of the present invention;

[0027] Figure 3 It is a longitudinal partial sectional view of a visual detection device for underground karst caves in Embodiment 2 of the present invention;

[0028] Figure 4 It is a top view of the shell in Embodiment 2 of the present invention;

[0029] Figure 5Longitudinal partial sectional view of a visual detection device for underground karst caves in Embodiment 3 of the present utility model;

[0030] Figure 6 Structural schematic diagram of the lowering assembly in Embodiment 4 of the present utility model;

[0031] Figure 7 Structural schematic diagram of the lowering assembly when clamped on the wall of the pile foundation hole casing in Embodiment 4 of the present utility model;

[0032] Figure 8 is Figure 7 right view of. Detailed implementation manners

[0033] The following is further detailed through specific implementation manners:

[0034] The marks in the attached drawings of the specification include: transparent protection housing 1, housing 110, housing cover 120, wire hole 121, rubber sealing ring 2, camera 3, rotating frame 4, horizontal plate I 401, vertical plate 402, horizontal plate II 403, driving motor I 5, lighting lamp 6, rotating shaft 7, driven gear 8, driving motor II 9, driving gear 10, rubber insulating tube 11, annular support plate 12, universal ball 13, distance sensor 14, Z-shaped mounting plate 15, guide wheel 16, limiting ring groove 161, pressing wheel 17, driving motor III 18, limiting plate 19, clamping groove 20, pressing ring 21, pile foundation hole casing wall 22.

[0035] Embodiment 1

[0036] This embodiment is basically as Figure 1 and Figure 2 shown: A visual detection device for underground karst caves includes a transparent protection housing 1. The transparent protection housing 1 includes a housing 110 and a housing cover 120. An opening is provided on the top wall of the housing 110, and the housing cover 120 is used to seal the opening, and the housing cover 120 is detachably connected to the top end of the housing 110. Specifically, the housing cover 120 is threadedly connected to the top end of the housing 110, and the housing cover 120 can be removed by rotation; moreover, a rubber sealing ring 2 is adhered to the inner side wall of the housing cover 120, and the rubber sealing ring 2 abuts against the top end of the housing 110, so as to ensure the sealing performance of the transparent protection housing 1 and prevent external liquid from entering the interior of the transparent protection housing 1. In addition, the transparent protection housing 1 in this embodiment is made of transparent plastic products or transparent tempered glass products.

[0037] Inside the transparent protective housing 1, there are a camera 3, a rotating frame 4, and a driving motor I 5 for driving the rotation of the rotating frame 4. The rotating frame 4 includes a horizontal plate I 401 and two vertical plates 402 fixedly connected to the horizontal plate I 401 and arranged oppositely. The driving motor I 5 is fixedly installed on the inner side wall of the housing cover 120. The output end of the driving motor I 5 is fixedly connected to the horizontal plate I 401, and the output end of the driving motor I 5 is coaxial with the central axis of the camera 3 when the camera 3 is in a vertical state.

[0038] On the outer wall of the camera 3, there are a lighting lamp 6 and two oppositely arranged rotating shafts 7. The lighting lamp 6 is an LED lamp; both rotating shafts 7 are welded to the outer wall of the camera 3. The ends of the two rotating shafts 7 far from the camera 3 are rotatably connected to the corresponding vertical plates 402. And one rotating shaft 7 is coaxially and fixedly connected with a driven gear 8. One vertical plate 402 is welded with a horizontal plate II 403. A driving motor II 9 is fixedly installed on the horizontal plate II 403. The output end of the driving motor II 9 is coaxially and fixedly connected with a driving gear 10 meshing with the driven gear 8.

[0039] A wire hole 121 is opened on the housing cover 120. A rubber insulating tube 11 is hermetically bonded in the wire hole 121. Wires, electric wires and other cables pass through the rubber insulating tube 11 and enter the inside of the transparent protective housing 1, so as to supply power to the driving motor I 5, the driving motor II 9, the lighting lamp 6 and the camera 3, and transmit the picture taken by the camera 3 to the ground. And the upper section of the wire hole 121 is centered, and the lower section of the wire hole 121 is inclined, so as to avoid the installation position of the driving motor I 5. In addition, in actual application, the staff can use auxiliary tools such as auxiliary belts to strengthen the fixing effect between the rubber insulating tube 11 and the housing cover 120, and avoid the separation of the rubber insulating tube 11 from the transparent protective housing 1.

[0040] In actual application, the staff lower the transparent protective housing 1 into the underground karst cave through the rubber insulating tube 11. The lighting lamp 6 emits light to illuminate the underground karst cave. Initially, the imaging port of the camera 3 faces downward, so as to photograph the development of the bottom of the underground karst cave. Subsequently, the driving motor II 9 is started, the driving gear 10 rotates, and the driven gear 8 meshing with the driving gear 10 rotates accordingly, so as to drive the rotating shaft 7 to rotate, and then drive the camera 3 to rotate (here, the camera 3 rotates around the horizontal axis, and the "horizontal axis" refers to the axis coaxial with the rotating shaft 7). The imaging port of the camera 3 changes. For example, the imaging port of the camera 3 is changed from facing downward vertically to facing horizontally. Then the driving motor II 9 stops working. Then, the driving motor I 5 drives to drive the rotating frame 4 to rotate, so as to drive the camera 3 to rotate (here, the camera 3 rotates around the vertical axis, and the "vertical axis" refers to the axis coaxial with the output end of the driving motor I 5). In this way, the camera 3 starts to rotate 360° circumferentially, so as to photograph the development of the rock wall of the underground karst cave.

[0041] After the camera 3 has been shooting for one week, lower the transparent protective housing 1 by a certain distance and continue shooting for another week, and so on until the transparent protective housing 1 descends to the bottom of the underground karst cave, so as to comprehensively shoot the picture of the rock wall of the underground karst cave, so that the staff can judge the development of the underground karst cave. In addition, since the transparent protective housing 1 in this embodiment has good sealing performance, in case there is groundwater in the underground karst cave, the transparent protective housing 1 can enter the water for shooting, so as to obtain the development of the underwater karst cave.

[0042] After the detection work is completed, lift the rubber insulating pipe 11 to take out the transparent protective housing 1 from the underground karst cave. When it is necessary to repair the devices inside the transparent protective housing 1, rotate the housing cover 120 to remove the housing cover 120, and the driving motor I 5 and the rotating frame 4 can leave the internal space of the housing 110 through the opening at the top end of the housing 110, so as to facilitate the staff to repair. To sum up, in this embodiment, the shooting angle of the camera 3 is adjustable, and the shooting range is increased, which is more conducive to collecting the development information of the underground karst cave.

[0043] Embodiment 2

[0044] The difference between this embodiment and Embodiment 1 is that: as Figure 3 and Figure 4 shown, in this embodiment, an annular support plate 12 is welded on the inner peripheral wall of the housing 110, and rolling friction members are provided between the two ends of the horizontal plate I 401 and the annular support plate 12. In this embodiment, the rolling friction members are universal balls 13, and the universal balls 13 are fixedly installed on the bottom surface of the horizontal plate I 401. In this way, the horizontal plate I 401 is supported by the annular support plate 12, so that the rotating frame 4 rotates stably and the resistance received during the rotation of the rotating frame 4 is small.

[0045] Embodiment 3

[0046] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that: as Figure 5 shown, in this embodiment, a distance sensor 14 is fixedly connected to the camera 3. In this way, the distance sensor 14 rotates with the camera 3, and the distance between the camera 3 and the rock wall of the underground karst cave is detected by using the distance sensor 14, so as to obtain the size information of the underground karst cave.

[0047] Embodiment 4

[0048] The difference between this embodiment and Embodiment 1 is that: in combination with Figure 6 , Figure 7 and Figure 8As shown in the figure, the device in this embodiment further includes a lowering component. The lowering component includes a Z-shaped mounting plate 15, a guide wheel 16, a pressing wheel 17, and a driving motor III 18 for driving the guide wheel 16 to rotate. A limiting plate 19 is fixedly connected to the bottom end of the Z-shaped mounting plate 15. A clamping groove 20 for the pile foundation hole casing wall 22 to be inserted into is formed between the limiting plate 19 and the Z-shaped mounting plate 15. Both the guide wheel 16 and the pressing wheel 17 are rotatably mounted on the top end of the Z-shaped mounting plate 15. A limiting ring groove 161 for the rubber insulating tube 11 to sink into is formed on the circumference of the guide wheel 16. A pressing ring 21 matching with the limiting ring groove 161 is arranged on the circumference of the pressing wheel 17. The distance between the pressing ring 21 and the bottom wall of the limiting ring groove 161 is smaller than the outer diameter of the rubber insulating tube 11 (the "outer diameter" refers to the external diameter).

[0049] In this embodiment, the clamping groove 20 formed between the Z-shaped mounting plate 15 and the limiting plate 19 is clamped onto the pile foundation hole casing wall 22, so as to fix the lowering component on the pile foundation hole casing wall 22. Subsequently, the driving motor III 18 is started to drive the guide wheel 16 to rotate. Since the pressing ring 21 presses the rubber insulating tube 11 tightly in the limiting ring groove 161, therefore, under the action of static friction, the rubber insulating tube 11 to the left of the guide wheel 16 ( Figure 8 as shown in the figure) is pushed to the right, so as to slowly lower the transparent protective housing 1, realizing the automatic lowering of the transparent protective housing 1 and avoiding manual lowering by the staff. When it is necessary to lift the transparent protective housing 1, the driving motor III 18 drives the guide wheel 16 to rotate in the reverse direction, and the rubber insulating tube 11 to the left of the guide wheel 16 ( Figure 8 as shown in the figure) is pushed to the left, so as to slowly lift the transparent protective housing 1. That is, this embodiment avoids the staff from manually lowering or lifting the transparent protective housing 1. During the detection process, the staff can stay away from the pile foundation hole, improving the operation safety and reducing the workload of the staff.

[0050] The above are only the embodiments of the present invention. Common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect and the practicality of the present invention. The specific implementation manners and the like recorded in the description can be used to explain the content of the claims.

Claims

1. A device for visualizing underground caves, characterized in that: It comprises a transparent protective shell, in which a camera, a rotating frame and a driving motor I for driving the rotating frame to rotate are arranged, the driving motor I is fixedly installed on the inner wall of the top side of the transparent protective shell, the rotating frame comprises a horizontal plate I and two vertical plates fixedly connected to the horizontal plate I and arranged oppositely, an illuminating lamp and two rotating shafts arranged oppositely are fixedly connected to the outer wall of the camera, one end of the two rotating shafts away from the camera is rotatably connected to the corresponding vertical plates, one rotating shaft is coaxially fixedly connected to a driven gear, a driving motor II is fixedly installed on the rotating frame, and the output end of the driving motor II is coaxially fixedly connected to a driving gear meshing with the driven gear.

2. The underground cave visualization detection device according to claim 1, characterized in that: The rotating frame also includes a horizontal plate II, which is located below the horizontal plate I, and the driving motor II is fixedly installed on the horizontal plate II.

3. The underground cave visualization detection device according to claim 1, characterized in that: The output end of the driving motor I is coaxial with the central axis of the camera when it is in a vertical state.

4. The underground cave visualization detection device according to claim 1, characterized in that: The camera is fixedly connected with a distance sensor.

5. The underground cave visualization detection device according to claim 1, characterized in that: The transparent protective shell includes a shell and a shell cover. The top wall of the shell is provided with an opening. The shell cover is used to seal the opening and is detachably connected to the top of the shell. The drive motor I is fixedly mounted on the shell cover.

6. The underground cave visualization detection device according to claim 5, characterized in that: An annular support plate is fixedly connected to the inner peripheral wall of the shell, and rolling friction parts are arranged between the two ends of the horizontal plate I and the annular support plate.

7. The underground cave visualization detection device according to claim 6, characterized in that: The rolling friction part is a universal ball.

8. The underground cave visualization detection device according to claim 5, characterized in that: The shell cover is threadedly connected to the top end of the shell body.

9. The underground cave visualization detection device according to claim 5, characterized in that: The shell cover is provided with a wire hole, in which a rubber insulating tube is sealed and fixedly connected.

10. The underground cave visualization detection device according to claim 9, characterized in that: The device also includes a lowering component, which includes a Z-shaped mounting plate, a guide wheel, a clamping wheel and a driving motor III for driving the guide wheel to rotate. The bottom end of the Z-shaped mounting plate is fixedly connected to a limiting plate, and a clamping groove for the pile foundation hole casing wall to be clamped is formed between the limiting plate and the Z-shaped mounting plate; the guide wheel and the clamping wheel are both rotatably mounted on the top end of the Z-shaped mounting plate, and a limiting ring groove for the rubber insulating tube to be immersed in is provided on the circumference of the guide wheel, and a clamping ring matching the limiting ring groove is provided on the circumference of the clamping wheel, and the spacing between the clamping ring and the bottom wall of the limiting ring groove is smaller than the outer diameter of the rubber insulating tube.

Images