Detection equipment in drill hole

Abstract

The utility model discloses detection equipment in a drill hole, which comprises a detection assembly, the detection assembly comprises a shell, the top of the shell is a transparent part, the upper part of the inner side of the shell is provided with a camera, the camera can acquire an external picture of the shell through the transparent part, the shell is sleeved with a cleaning sleeve, a pressure spring and a friction sleeve, and the pressure spring is positioned on the inner side of the friction sleeve; a push rod is fixed to the top end of the friction sleeve, the upper end of the push rod is connected with a cleaning sleeve, and the inner wall of the cleaning sleeve is in contact fit with the outer wall of the transparent part. The adapter rod is connected with the shell and the drill rod, and in-hole detection is performed by adopting a method of pushing the detection assembly by the drilling machine, so that the labor burden can be reduced, the test error is reduced, and the personnel danger is reduced; when the detection assembly advances in the drill hole, the cleaning sleeve moves relative to the transparent part through the relative movement of the friction sleeve and the inner wall of the drill hole, the transparent part is cleaned, and a camera can conveniently and accurately obtain pictures in the drill hole through the transparent part.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine equipment, in particular to a borehole detection device. Background Art

[0002] When coal mines conduct operations such as coal pillar drilling and hydraulic fracturing, they need to accurately detect the rock structure of the tunnel surrounding rock and the coal seam roof, including rock properties, rock integrity, and fracture development, to provide a basis for tunnel support and hydraulic fracturing. In-borehole detection equipment is used to detect coal seam structure, roadway roof delamination (fracture), drilling quality, and roadway grouting effectiveness. This is especially true for observing roof delamination in anchor-net-supported tunnels and observing the rock structure of the working face roof, all of which can be displayed intuitively and clearly on the display.

[0003] Because the roof rock layer is weak, loose and broken, even if the hole is punched and cleaned before detection, when the detection equipment is transported to the deep part of the borehole, some small pieces of rock debris or mud often fall on the detection equipment and block the camera lens, making it impossible to accurately obtain image information inside the borehole, thus affecting the detection work. In addition, when underground drilling requires in-hole detection, it is often carried out by manually pushing the detection equipment. This working method has the following disadvantages: First, this working method requires multiple people to operate, which is time-consuming and labor-intensive; second, manual pushing cannot control the pushing speed, resulting in insufficient detection accuracy and test errors; third, manual pushing may cause the detection equipment to fall down easily, posing a danger to the pushing personnel below the hole mouth. Utility Model Content

[0004] Based on this, it is necessary to provide a borehole detection device to address the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a borehole detection device, including a detection component, the detection component includes a shell, the top of the shell is a transparent part, a camera is installed on the upper inner side of the shell, the camera can obtain the external image of the shell through the transparent part, a cleaning sleeve, a compression spring and a friction sleeve are installed on the shell, the compression spring is located on the inner side of the friction sleeve, the upper end of the compression spring is connected to the friction sleeve, the lower end of the compression spring is connected to the shell, a push rod is fixed to the top of the friction sleeve, the upper end of the push rod is connected to the cleaning sleeve, the inner wall of the cleaning sleeve is in contact with the outer wall of the transparent part; it also includes a transfer rod, the upper and lower ends of the transfer rod are installed with conversion joints, the upper end of the transfer rod is connected to the bottom of the shell through the conversion joint, and the lower end of the transfer rod can be connected to the drill pipe through the conversion joint.

[0006] Preferably, the shell is a rotating body structure.

[0007] Preferably, the housing is sequentially installed with a rangefinder, a signal transmitter and a battery below the camera. The camera and the rangefinder are both electrically connected to the signal transmitter.

[0008] Preferably, the shell outer wall is fixed with a mounting ring plate, and the lower end of the compression spring is connected with the shell through the mounting ring plate; in the natural state, the inner wall of the bottom end of the friction sleeve abuts against the mounting ring plate.

[0009] Preferably, the shell outer wall is fixed with a guide sleeve, and the push rod is slidably connected with the guide sleeve.

[0010] Preferably, the adapter includes a first threaded part at the upper end thereof and a second threaded part at the lower end thereof, the first threaded part and the second threaded part are both provided with external threads, the bottom of the shell is provided with a first internal threaded hole threadedly matched with the first threaded part, and the shell can be threadedly connected with the first threaded part through the first internal threaded hole; the upper end of the adapter rod is provided with a second internal threaded hole threadedly matched with the second threaded part, and the adapter rod can be threadedly connected with the second threaded part through the second internal threaded hole; the lower end of the adapter rod is provided with a third internal threaded hole threadedly matched with the first threaded part, and the adapter rod can be threadedly connected with the first threaded part through the third internal threaded hole.

[0011] Compared with the prior art, the technical scheme has at least one of the following beneficial effects:

[0012] In combination with the characteristics of the drilling machine, the hole detection is performed by using the method that the drilling machine pushes the detection assembly, so that the labor burden is reduced, the pushing speed of the drilling machine is stable, the test error is reduced, and personnel do not need to stand under the wellhead to reduce the danger of personnel;

[0013] When the detection assembly advances in the borehole, the relative movement of the friction sleeve and the inner wall of the borehole enables the cleaning sleeve to move relative to the transparent part, the transparent part is cleaned, the impurities covering the transparent part and affecting the camera to accurately acquire the image information in the borehole are removed, and the camera can accurately acquire the picture in the borehole through the transparent part. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of an embodiment of the utility model;

[0015] Figure 2 It is a working state of an embodiment of the utility model Figure 1 ;

[0016] Figure 3 It is a working state of an embodiment of the utility model Figure 2 ;

[0017] Figure 4 It is a top view of an embodiment of the utility model;

[0018] Figure 5 It is Figure 3 a local enlarged view of A in the middle;

[0019] In the figure, 1. detection assembly; 11. housing; 111. transparent part; 112. first internal threaded hole; 12. camera; 13. cleaning sleeve; 14. compression spring; 15. friction sleeve; 16. push rod; 17. mounting ring plate; 18. guide sleeve; 2. adapter rod; 21. second internal threaded hole; 22. third internal threaded hole; 3. conversion joint; 31. first threaded part; 32. second threaded part; 4. drill rod. DETAILED DESCRIPTION

[0020] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] See also Figures 1 to 5 , the embodiment of the present application provides a borehole detection device, including a detection component 1, the detection component 1 includes a shell 11, a camera 12, a cleaning sleeve 13, a compression spring 14, a friction sleeve 15, a push rod 16, a mounting ring plate 17, and a guide sleeve 18. The top of the shell 11 is a transparent portion 111, and the material of the transparent portion 111 is transparent tempered glass. A camera 12 is installed on the upper inner side of the shell 11. The camera 12 is a 360-degree panoramic camera 12. The camera 12 can obtain the external image of the shell 11 through the transparent portion 111. The shell 11 is equipped with a cleaning sleeve 13, a compression spring 14 and a friction sleeve 15. The friction sleeve 15 includes a compression spring 14 located inside the friction sleeve 15. The upper end of the compression spring 14 is connected to the friction sleeve 15, and the lower end of the compression spring 14 is connected to the housing 11. A push rod 16 is fixed to the top of the friction sleeve 15. The upper end of the push rod 16 is connected to the cleaning sleeve 13. The inner wall of the cleaning sleeve 13 contacts the outer wall of the transparent portion 111. The friction sleeve 15 also includes a transfer rod 2. The transfer rod 2 has a conversion joint 3 installed at both the upper and lower ends. The upper end of the transfer rod 2 is connected to the bottom of the housing 11 via the conversion joint 3. The lower end of the transfer rod 2 can be connected to the drill rod 4 via the conversion joint 3. The drill rod 4 is connected to the drilling rig, and the drilling rig is used to push the detection assembly 1. The transfer rod 2 is a flexible rod made of polytetrafluoroethylene and has a length of 1m to 2m.

[0022] In order to facilitate the detection assembly 1 to enter and exit the drill hole and facilitate the cleaning sleeve 13 to clean the transparent part 111, the housing 11 is provided with a rotating body structure. The cleaning sleeve 13 is annular and the cross section of the transparent part 111 is circular. The cleaning sleeve 13 is easy to contact with the transparent part 111 to clean the transparent part 111.

[0023] To facilitate detection within the borehole, a housing 11 is provided, with a rangefinder, a signal transmitter, and a battery installed below the camera 12. Both the camera 12 and the rangefinder are electrically connected to the signal transmitter, which wirelessly transmits information acquired by them to a receiving terminal outside the borehole. The camera 12, rangefinder, and signal transmitter are also electrically connected to the battery, which provides power for these three components.

[0024] To facilitate connection of the compression spring 14 to the housing 11, a mounting ring plate 17 is fixed to the outer wall of the housing 11. The lower end of the compression spring 14 is connected to the housing 11 via the mounting ring plate 17. In its natural state, the inner wall of the bottom end of the friction sleeve 15 abuts against the mounting ring plate 17. The mounting ring plate 17 supports the friction sleeve 15, preventing the compression spring 14 from excessively pushing the friction sleeve 15 out. This ensures that the position of the friction sleeve 15 on the housing 11 remains stable when entering the drill hole.

[0025] To facilitate the friction sleeve 15 in pushing the push rod 16 and the cleaning sleeve 13 for stable linear motion, a guide sleeve 18 is fixed to the outer wall of the housing 11, and the push rod 16 is slidably connected to the guide sleeve 18. The guide sleeve 18 guides the push rod 16, so that when the friction sleeve 15 contacts the inner wall of the drilled hole and moves relative to the housing 11 under the influence of friction, the friction sleeve 15 can drive the push rod 16 and the cleaning sleeve 13 for stable linear motion. In addition, the guide sleeve 18 can also limit the extreme position of the cleaning sleeve 13. When the friction sleeve 15 is subjected to force and moves relative to the housing 11, and the compression spring 14 is compressed, when the cleaning sleeve 13 abuts the guide sleeve 18, the friction sleeve 15 cannot move further, and the compression spring 14 cannot be compressed further.

[0026] To facilitate the connection between the housing 11, the adapter rod 2, and the drill pipe 4, a conversion joint 3 is provided, including a first threaded portion 31 at its upper end and a second threaded portion 32 at its lower end. Both the first threaded portion 31 and the second threaded portion 32 are externally threaded. The bottom of the housing 11 is provided with a first internally threaded hole 112 that threadably mates with the first threaded portion 31. The housing 11 can be threadedly connected to the first threaded portion 31 through the first internally threaded hole 112. The upper end of the adapter rod 2 is provided with a second internally threaded hole 21 that threadably mates with the second threaded portion 32. The adapter rod 2 can be threadedly connected to the second threaded portion 32 through the second internally threaded hole 21. The lower end of the adapter rod 2 is provided with a third internally threaded hole 22 that threadably mates with the first threaded portion 31. The adapter rod 2 can be threadedly connected to the first threaded portion 31 through the third internally threaded hole 22. The drill pipe 4 can be connected to the drilling rig via the second threaded portion 32.

[0027] In this embodiment, the detection assembly 1 is connected to the adapter rod 2, the adapter rod 2 is connected to the drill rod 4, and the drill rod 4 is connected to the drilling rig, and the drilling rig is used to push the detection assembly 1; this can reduce the manpower burden, and the pushing speed of the drilling rig is stable, which can reduce the test error; personnel do not need to stand at the wellhead to lower the probe, which can reduce the risk to personnel;

[0028] When the detection assembly 1 moves forward in the borehole, if the friction sleeve 15 is in continuous contact with the inner wall of the borehole, the friction sleeve 15 is affected by the friction between the inner wall of the borehole and moves relative to the housing 11. The friction sleeve 15 moves downward relative to the housing 11, compressing the compression spring 14. The friction sleeve 15 drives the cleaning sleeve 13 to descend through the push rod 16, so that the cleaning sleeve 13 descends to below the transparent portion 111. Figure 3 As shown, it is convenient for the camera 12 to obtain the external image of the housing 11 through the transparent portion 111;

[0029] If the friction sleeve 15 is in intermittent contact with the inner wall of the drill hole, the friction sleeve 15 will reciprocate on the transparent portion 111 under the action of the friction force with the inner wall of the drill hole and the elastic restoring force of the compression spring 14, thereby cleaning the transparent portion 111 and facilitating the camera 12 to obtain the external image of the housing 11 through the transparent portion 111;

[0030] If the cleaning sleeve 13 is under the transparent portion 111 and impurities cover the transparent portion 111, affecting the camera 12 from accurately acquiring image information inside the borehole, the drilling rig can be controlled to stop pushing the detection assembly 1. Under the elastic restoring force of the compression spring 14, the friction sleeve 15 will drive the cleaning sleeve 13 to rise via the push rod 16. The inner wall of the cleaning sleeve 13 will contact the outer wall of the transparent portion 111, cleaning the transparent portion 111 and removing the impurities covering the transparent portion 111 that affect the camera 12 from accurately acquiring image information inside the borehole.

[0031] If the elastic restoring force of the compression spring 14 is smaller than the friction force between the friction sleeve 15 and the inner wall of the borehole, the drilling rig can be used to drive the detection assembly 1 to retreat a short distance in the borehole, so that the friction sleeve 15 moves clockwise relative to the housing 11 and the cleaning sleeve 13 moves upward relative to the transparent portion 111. Figure 2 , clean the transparent portion 111 and remove impurities covering the transparent portion 111 that affect the camera 12 from accurately obtaining image information inside the borehole, so that the camera 12 can obtain images inside the borehole through the transparent portion 111.

[0032] It should be noted that those skilled in the art may make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be based on the appended claims.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A borehole detection device, comprising a detection assembly (1), characterized in that: The detection assembly (1) includes a shell (11), the top of the shell (11) is a transparent portion (111), a camera (12) is installed on the upper inner side of the shell (11), and the camera (12) can obtain the external image of the shell (11) through the transparent portion (111). The shell (11) is provided with a cleaning sleeve (13), a compression spring (14) and a friction sleeve (15), the compression spring (14) is located inside the friction sleeve (15), the upper end of the compression spring (14) is connected to the friction sleeve (15), and the compression spring (14) is provided with a cleaning sleeve (13), a compression spring (14) and a friction sleeve (15). The lower end is connected to the housing (11), a push rod (16) is fixed to the top of the friction sleeve (15), the upper end of the push rod (16) is connected to the cleaning sleeve (13), and the inner wall of the cleaning sleeve (13) is in contact with the outer wall of the transparent portion (111); and the adapter rod (2) is also included. The upper and lower ends of the adapter rod (2) are both equipped with conversion joints (3), the upper end of the adapter rod (2) is connected to the bottom of the housing (11) through the conversion joint (3), and the lower end of the adapter rod (2) can be connected to the drill rod (4) through the conversion joint (3).

2. The borehole detection device according to claim 1, characterized in that: The shell (11) is a rotating body structure.

3. The borehole detection device according to claim 1, characterized in that: The housing (11) is located below the camera (12) and is equipped with a rangefinder, a signal transmitter, and a battery in sequence.

4. The borehole detection device according to claim 1, characterized in that: A mounting ring plate (17) is fixed to the outer wall of the housing (11), and the lower end of the compression spring (14) is connected to the housing (11) via the mounting ring plate (17); in a natural state, the inner wall of the bottom end of the friction sleeve (15) abuts against the mounting ring plate (17).

5. The borehole detection device according to claim 1, characterized in that: A guide sleeve (18) is fixed to the outer wall of the housing (11), and the push rod (16) is slidably connected to the guide sleeve (18).

6. The borehole detection device according to claim 1, characterized in that: The conversion joint (3) comprises a first threaded portion (31) located at its upper end and a second threaded portion (32) located at its lower end, the first threaded portion (31) and the second threaded portion (32) both being provided with external threads, a first internal threaded hole (112) threadedly engaged with the first threaded portion (31) being provided at the bottom of the housing (11), and the housing (11) being capable of being threadedly connected to the first threaded portion (31) through the first internal threaded hole (112); a second internal threaded hole (21) threadedly engaged with the second threaded portion (32) being provided at the upper end of the conversion rod (2), and the conversion rod (2) being capable of being threadedly connected to the second threaded portion (32) through the second internal threaded hole (21); and a third internal threaded hole (22) threadedly engaged with the first threaded portion (31) being provided at the lower end of the conversion rod (2), and the conversion rod (2) being capable of being threadedly connected to the first threaded portion (31) through the third internal threaded hole (22).

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