Karst cave detection device in karst area

Abstract

The utility model relates to a karst cave detection device in a karst area, which comprises a probe part, the probe part comprises a protective shell and a probe arranged in the protective shell, a gravity ball is arranged at the bottom of the protective shell in a rolling manner, the bottom wall of the protective shell is provided with a hemispherical recess, and the gravity ball is arranged in the hemispherical recess. The utility model provides a probe part with a composite structure, a protective shell is arranged outside the probe for protection, and the side blowing force for driving the protective shell to incline is counteracted by utilizing the mutual matching of a hemispherical recess and a gravity ball, so that the probe is kept in a stable posture during detection, and the real condition of a specific position of a karst cave can be accurately reflected; meanwhile, the protection shell and the probe are connected through the universal joint assembly, so that the protection shell and the probe are allowed to rotate with the joint as the center, when the protection shell is slightly inclined due to interference, the probe can still maintain the current vertical state, and accurate detection is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to karst cave detection technical field, especially relate to a karst cave detection device in karst region. BACKGROUND

[0002] When carrying out engineering construction in karst region, the existence of karst cave will constitute serious threat to the stability and safety of engineering. For example, if there is undiscovered karst cave under the large infrastructure such as road, bridge, high-rise building, etc., with the time elapsing and the influence of engineering activity, it can lead to serious consequences such as ground subsidence, building cracking and even collapse.

[0003] In order to eliminate the above-mentioned hidden danger, generally, the karst cave is detected before construction, in some technologies using probe to penetrate into the interior of karst cave for detection, the probe is often affected by fluid side blowing and cannot maintain stable posture due to the special topography of karst region, which will cause the data collected by the probe to deviate, and the real situation of the specific position of karst cave cannot be accurately reflected, which seriously affects the judgment of the internal structure of karst cave, and the unstable posture of probe can lead to repeated detection, reduce the detection efficiency, and increase the labor and time cost. UTILITY MODEL CONTENT

[0004] The utility model provides a karst cave detection device in karst region in view of the problem that the probe of prior art cannot maintain stable posture after penetrating into the ground, and the specific technical scheme is as follows:

[0005] A karst cave detection device in karst region, comprising a probe part, the probe part comprising a protective shell and a probe installed in the protective shell, a gravity ball is arranged on the bottom of the protective shell and rolls, the bottom wall of the protective shell has a semispherical recess, and the gravity ball is placed in the semispherical recess.

[0006] As a further technical scheme of the utility model, a through hole allowing cable to pass through is formed in the top of the protective shell.

[0007] As a further technical scheme of the utility model, the protective shell is connected with the probe through a universal joint assembly, the universal joint assembly comprises a ball cage and a steel ball wrapped outside the ball cage, the ball cage is connected with the protective shell through an extension piece one, and the steel ball is connected with the probe through an extension piece two.

[0008] As a further technical scheme of the utility model, the extension piece two is connected with the probe through a rubber pad.

[0009] As a further technical scheme of the utility model, a host part is further included, and the host part and the probe part are electrically connected.

[0010] The utility model has the following beneficial effects:

[0011] (1) The probe part of the composite structure is provided with a protective shell outside the probe for protection, and the mutual cooperation of the hemispherical recess and the gravity ball is used to offset the side blowing force that drives the protective shell to tilt, so that the probe maintains a stable posture during detection, which is beneficial to accurately reflect the true situation of the specific position of the karst cave.

[0012] (2) In the present application, the connection between the protective shell and the probe is realized by the universal joint assembly, so as to allow the protective shell and the probe to rotate around the connection as the center. When the protective shell is slightly tilted due to interference, the probe can still maintain the current vertical state, which is beneficial to the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The overall structure schematic diagram of the cave detection device in the karst area is shown;

[0014] Figure 2 The structure schematic diagram of the probe part is shown;

[0015] Figure 3 The structure schematic diagram of the universal joint assembly is shown;

[0016] Figure 4 The state structure schematic diagram of the universal joint assembly is shown.

[0017] LEGEND:

[0018] 100, main part; 200, probe part; 210, protective shell; 211, hemispherical recess; 212, perforation; 220, probe; 230, gravity ball; 240, universal joint assembly; 241, ball cage; 242, steel ball; 243, extension piece one; 244, extension piece two; 245, rubber pad. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely in combination with embodiments.

[0020] Figure 1 The overall structure schematic diagram of the cave detection device in the karst area is shown; Figure 1In the karst region, the cave detection device comprises a host part 100 and a probe part 200, the host part 100 and the probe part 200 are electrically connected, the host part 100 is installed on the ground, and is used for remotely controlling the probe part 200, the probe part 200 is inserted into the ground, and is used for real-time detection of the terrain and feedback to the host part 100. It should be noted that the detection device in the present application has a detection probe, but the specific type of the probe is not limited, for example, it can be an ultrasonic probe or an electromagnetic wave probe, and the present application does not make specific limitation, but only improves the anti-side blowing capacity of the probe after being inserted into the ground.

[0021] Figure 2 The structure diagram of the probe part 200 is shown; Figure 2 In the present application, the probe part 200 comprises a protective shell 210 and a probe 220 installed in the protective shell 210, and a gravity ball 230 is arranged at the bottom of the protective shell 210 and can roll; when the protective shell 210 is tilted to one direction by the fluid side blowing, at this time, the protective shell 210 is subjected to the force in the same direction as the fluid, and the gravity ball 230 is subjected to the interference of gravity, so that the gravity ball 230 moves in the opposite direction relative to the protective shell 210, that is, the gravity ball 230 applies a force to the protective shell 210 in the opposite direction of the fluid, so as to offset the tilting trend of the protective shell 210; the protective shell 210 has a cylindrical structure, that is, the cross section of the protective shell 210 is circular, and the gravity ball 230 can move in any direction to adapt to the side blowing in any direction; the bottom wall of the protective shell 210 has a semispherical recess 211, and the gravity ball 230 is arranged in the semispherical recess 211; due to the arrangement of the semispherical recess 211, the gravity ball 230 is located at the lowest point of the semispherical recess 211 in the initial state, that is, at the central axis of the protective shell 210, at this time, if the protective shell 210 is tilted in any direction, the lowest point of the semispherical recess 211 changes, so as to change the position of the gravity ball 230, and at the same time, the gravity ball 230 also applies a resistance to the protective shell 210 to prevent the protective shell 210 from tilting, which is beneficial to maintaining the stable posture of the probe part 200, and after the protective shell 210 is reset, the gravity ball 230 is automatically reset to the lowest point of the semispherical recess 211, that is, on the central axis of the protective shell 210; a perforation 212 for allowing the cable to pass through is formed at the top of the protective shell 210; in actual use, the cable can pass through the perforation 212 to be connected with the probe 220 to realize signal transmission.

[0022] It should be noted that although the protective shell 210 is arranged outside the probe 220 to form a composite structure in the present application, the protective shell 210 itself does not interfere with the detection accuracy of the probe 220, for example, when the probe 220 is an ultrasonic probe, the protective shell 210 is a non-metal material to avoid interference with the signal.

[0023] Figure 3A structural schematic diagram of the gimbal assembly 240 is shown; Figure 4 A state structural schematic diagram of the gimbal assembly 240 is shown; Figure 3 In the embodiment, the protective shell 210 is connected with the probe 220 through the gimbal assembly 240, the gimbal assembly 240 comprises a ball cage 241 and a steel ball 242 wrapped in the ball cage 241, the ball cage 241 is connected with the protective shell 210 through an extension member one 243, and the steel ball 242 is connected with the probe 220 through an extension member two 244; the ball cage 241 and the steel ball 242 form a gimbal structure to allow the protective shell 210 and the probe 220 to rotate around the center, that is, when the protective shell 210 is slightly tilted due to interference, the probe 220 can still maintain the current vertical state, which is beneficial to the accuracy of detection; the extension member two 244 is connected with the probe 220 through a rubber pad 245, and the rubber pad 245 is arranged between the extension member two 244 and the protective shell 210 to absorb the vibration from the protective shell 210.

[0024] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them.

Claims

1. A device for detecting a cave in a karst region, comprising a probe portion (200), characterized in that: The probe part (200) comprises a protective shell (210) and a probe (220) installed in the protective shell (210), a gravity ball (230) is arranged at the bottom of the protective shell (210), and the bottom wall of the protective shell (210) is provided with a semispherical recess (211), and the gravity ball (230) is arranged in the semispherical recess (211).

2. The cave detecting device in karst area according to claim 1, characterized in that: A through hole (212) is formed in the top of the protective shell (210) to allow a cable to pass through.

3. The cave detecting device in karst area according to claim 2, characterized in that: The protective shell (210) is connected with the probe (220) through a universal joint assembly (240), the universal joint assembly (240) comprises a ball cage (241) and a steel ball (242) wrapped outside the ball cage (241), the ball cage (241) is connected with the protective shell (210) through an extension piece one (243), and the steel ball (242) is connected with the probe (220) through an extension piece two (244).

4. The cave detecting device in karst area according to claim 3, characterized in that: The extension piece two (244) is connected with the probe (220) through a rubber pad (245).

5. The cave detecting device in karst area of claim 3, wherein: The probe part (200) is electrically connected with a host part (100). The probe part (200) is electrically connected with a host part (100).

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