A borehole imager suitable for multi-aperture, gain imaging effects

By using a panoramic camera, high-definition glass protective cover and cone nut in the drilling imager, combined with the roller system and remote control system, the problem of insufficient imaging resolution and stability of the existing drilling imager is solved, and the problem of inadequate imaging resolution and stability is achieved in High resolution imaging and equipment stability improvements under multi-porous conditions.

CN118601550BActive Publication Date: 2025-02-11HEBEI UNIV OF ENG
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Patent Information

Application Number
CN202410926345.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-02-11
Estimated Expiration
2044-07-11

AI Technical Summary

Technical Problem

The existing drilling imager has limited imaging resolution and clarity, poor stability, and difficult to control the movement speed under different rock formations and geological conditions, which increases the weight of the instrument.

Method used

Designed a drilling imager for multi-aperture diameter, using a panoramic camera, high-definition glass cover and cone nut, combined with a roller system and a remote control system to ensure stability and imaging clarity when the probe moves within the drill .

Benefits of technology

High resolution imaging under multi-porous conditions is achieved, the accuracy and reliability of measurement data are improved, the stability and portability of the equipment are enhanced, and suitable for complex and dangerous working environments.

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Abstract

The present invention discloses a borehole imager suitable for multi-aperture and gain imaging effects, and relates to the technical field of geological exploration equipment. It includes a main frame, a panoramic camera installed on the top of the main frame, a high-definition glass protection cover covered on the panoramic camera, and a conical nut arranged on the top of the high-definition glass protection cover; a roller system is arranged on the outer peripheral side of the main frame; and a remote control system is arranged inside the main frame. The borehole imager suitable for multi-aperture, remote control, and enhanced imaging effects involved in this patent application has achieved many beneficial effects through innovative design and component optimization. Its core advantage lies in its strong multi-aperture adaptability. Through the replaceable conical nut design, it can adapt to the drilling needs of different apertures. It is designed with a roller to keep it centered, so that the peek imaging is clearer and more accurate, thereby significantly broadening the scope of application.
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Description

Technical Field

[0001] The invention belongs to the technical field of geological exploration equipment, and in particular relates to a borehole imager suitable for multi-aperture and gain imaging effects. Background Art

[0002] Borehole imagers are used in mining, geological exploration, infrastructure engineering and other fields due to their portability and high efficiency. They can also process and analyze images through computer software to generate a series of high-quality three-dimensional images of stratum lithology, brittleness, cracks, mud height, etc., thereby providing detailed geological information. The application of these technologies has made borehole imagers widely used in geotechnical engineering, mining geology, coal mining and other fields, such as pile foundation testing, foundation testing, hydrological engineering, overburden crack development, etc.

[0003] However, the commonly used borehole imaging instrument is mainly composed of a special panoramic probe, a wire rack, a pulley, a cable and a ground controller. In its engineering application, it has the following main defects:

[0004] 1. The imaging resolution and clarity of the borehole imager may be limited, especially in different rock formations and geological conditions. During the movement, tiny particles may fall and blur the probe, which may not provide a clear enough image to support accurate geological interpretation, causing the measurement process to be repeated and the accuracy to decrease.

[0005] 2. The rock formation environment is often complex and changeable. During operation, the rod is usually moved only by manual support, so the stability of the borehole imager needs to be improved.

[0006] 3. During the rising or lowering process of the probe, different methods are adopted according to the actual detection distance. Its movement speed is difficult to control, and the rising process only relies on the continuous extension of the support rod, which increases the weight of the instrument.

[0007] Therefore, we developed a borehole imager suitable for multi-aperture and gain imaging effects to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide a borehole imager suitable for multi-aperture and gain imaging effects to solve the problems raised in the above background technology.

[0009] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0010] The present invention is a drilling imager suitable for multi-aperture and gain imaging effects, comprising a main frame, a panoramic camera installed on the top of the main frame, a high-definition glass protection cover covering the panoramic camera, and a conical nut arranged on the top of the high-definition glass protection cover; a roller system is arranged on the outer peripheral side of the main frame; and a remote control system is arranged inside the main frame.

[0011] As a preferred technical solution of the present invention, a screw hole with an internal thread is arranged inside the conical nut, and a fixing seat with an external thread matching the screw hole is arranged on the top of the high-definition glass protection cover, and the conical nut is threadedly connected to the high-definition glass protection cover.

[0012] As a preferred technical solution of the present invention, the roller system includes a plurality of roller assemblies evenly arranged around the main frame and a power system located inside the main frame for driving the roller assemblies to rotate.

[0013] As a preferred technical solution of the present invention, the roller assembly includes a U-shaped hinged ear and a connecting rod, the U-shaped hinged ear is fixed to the outer peripheral side of the main frame, a roller is arranged at the bottom end of the connecting rod, a small offset gear is arranged at the upper end of the connecting rod, and the upper end of the connecting rod is hinged to the U-shaped hinged ear; the main frame is located at the contact position of the U-shaped hinged ear, and is provided with an open groove corresponding to the small offset gear, and one side of the small offset gear extends into the main frame through the opening groove.

[0014] As a preferred technical solution of the present invention, the power system includes a rotating motor and a large staggered axis gear arranged on the top of the rotating motor, the rotating motor is arranged inside the main frame, a mounting frame is arranged inside the main frame, the rotating motor is installed on the mounting frame, and the large staggered axis gear is meshed with a plurality of small staggered axis gears.

[0015] As a preferred technical solution of the present invention, the remote control system includes a wired signal transmission device, a remote control auxiliary device, a control module for operating an internal rotating motor and an external roller, a video decoder and a data storage module.

[0016] As a preferred technical solution of the present invention, a motor brake structure is provided at one end of the connecting rod close to the roller, and the motor brake structure is arranged on the wheel. The motor brake structure includes a motor and a brake pad, and the remote control system also includes a motor drive module for driving the motor to operate.

[0017] As a preferred technical solution of the present invention, the number of the roller assemblies is ≧3 and they are evenly distributed on the outer circumferential surface of the main frame.

[0018] As a preferred technical solution of the present invention, the roller is provided with a rubber sleeve or anti-slip grooves.

[0019] As a preferred technical solution of the present invention, the material of the high-definition glass protection cover includes but is not limited to: borosilicate glass, soda-lime boron glass, and quartz glass.

[0020] The present invention has the following beneficial effects:

[0021] This patent application involves a borehole imager suitable for multi-aperture and gain imaging effects, which achieves many beneficial effects through innovative design and component optimization. Its core advantage lies in its strong multi-aperture adaptability. Through the replaceable conical nut design, it can adapt to the drilling needs of different apertures, significantly broadening the scope of application. The integration of the remote control system not only improves

[0022] It not only improves the safety of operation, but also significantly improves work efficiency, and is particularly suitable for complex and dangerous working environments. The design of the three-dimensional support frame system ensures that the imaging probe always remains centered when moving in the borehole, thereby obtaining clearer and brighter imaging effects, greatly improving the accuracy and reliability of measurement data. In addition, the use of high-definition glass protective cover effectively prevents the accumulation of particles such as coal dust and rock dust, keeps the camera clean, and further improves the imaging quality. The portability and durability of the equipment have also been significantly improved, making it more efficient, accurate and safe in actual work. These comprehensive advantages make the borehole imager have important application value in the fields of geological exploration, mining lithology analysis, etc., and provide efficient and accurate solutions for related industries.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is the internal structure diagram of the present invention;

[0027] Figure 3 for Figure 1 A partial structural diagram of

[0028] Figure 4 It is the overall structure diagram of the working state of the present invention;

[0029] Figure 5 The structure diagram of the large staggered axis gear meshing with the small staggered axis gear; in the attached figure, the list of components represented by each reference numeral is as follows:

[0030] 1-Main frame; 2-HD glass protective cover, 21-fixed seat; 3-conical nut; 4-panoramic camera

[0031] Camera; 5-U-shaped hinge ear; 6-small staggered axis gear; 7-connecting rod; 8-roller; 9-rotating motor; 10-large staggered axis gear; 11-remote control system; 12-drilling rock formation. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] like Figure 1-4 As shown: A borehole imager suitable for multi-aperture and gain imaging effects, comprising a main frame 1, a panoramic camera 4 installed on the top of the main frame 1, a high-definition glass protection cover 2 covered on the panoramic camera 4, and a conical nut 3 arranged on the top of the high-definition glass protection cover 2; a roller system is arranged on the outer peripheral side of the main frame 1; and a remote control system is arranged inside the main frame 1. A screw hole with an internal thread is arranged inside the conical nut 3, and a fixing seat 21 with an external thread matching the screw hole is arranged on the top of the high-definition glass protection cover 2, and the conical nut 3 is threadedly connected with the high-definition glass protection cover 2.

[0035] In the present invention, the main frame 1 is a cylindrical structure as a whole, and the uppermost fixing seat 21 of the high-definition glass protective cover 2 is provided with a thread that fits with the conical nut 3. In actual application, the hole

[0036] The diameter is used to prefabricate suitable conical nuts 3 and the size of the main frame 1 in advance, so as to better enable the present invention to achieve significant effects. The high-definition glass protection cover 2 can prevent dust or fine particles from falling directly on the probe, making the imaging effect unclear; the inside of the high-definition glass protection cover 2 is a 360° panoramic high-definition camera, which is used to collect images of the rocks inside the borehole to ensure the normal progress of the work; in the actual working environment, fine particles may fall or dust may accumulate on the high-definition glass protection cover 2 during the forward movement of the drilling imager. The prefabricated conical nuts can greatly reduce the accumulation of particles or dust and improve the imaging clarity.

[0037] Specifically, when the present invention is used, its replaceable conical nut 3 is prefabricated in advance according to the size of the borehole, the conical nut 3 is connected to the high-definition glass protective cover 2 through a thread, and one end of the panoramic camera 4 is placed into the borehole to put the entire device into the borehole. Then, the roller system is driven by the remote control system 11. On the one hand, the roller system drives the entire device to move up and down in the borehole, and on the other hand, the roller system makes the borehole imager fit exactly with the inner wall, and the imaging remains in the center position. When the detection work is completed, the device can be withdrawn by controlling the roller system through the remote control system to reduce manpower loss.

[0038] By adopting this invention, the manpower loss during the measurement of the borehole imaging instrument can be effectively reduced, the imaging clarity can be improved, the accuracy and reliability of the data can be improved, and it is helpful to more accurately analyze and evaluate the underground rock formation conditions. At the same time, the information such as the borehole location, cracks, holes and rock formation interface can be more accurately determined. Therefore, the present invention has important application value in the fields of geological exploration, mining engineering, etc.

[0039] In another optional embodiment, Figure 2~Figure 5 As shown in the figure, the roller system includes a plurality of roller assemblies evenly arranged on the periphery of the main frame 1 and a power system located inside the main frame 1 to drive the roller assemblies to rotate. The roller assembly includes a U-shaped hinge ear 5 and a connecting rod 7. The U-shaped hinge ear 5 is fixed to the outer periphery of the main frame 1. The bottom end of the connecting rod 7 is provided with a roller 8. The upper end of the connecting rod 7 is provided with a

[0040] The upper end of the small staggered gear 6 and the connecting rod 7 are hinged with the U-shaped hinged ear 5; the main frame 1 is located at the contact position of the U-shaped hinged ear 5, and is provided with an open slot corresponding to the small staggered gear 6, and one side of the small staggered gear 6 extends into the main frame 1 through the open slot. The power system includes a rotating motor 9 and a large staggered gear 10 arranged on the top of the rotating motor 9. The rotating motor 9 is arranged inside the main frame 1, and a mounting frame is arranged inside the main frame 1. The rotating motor 9 is installed on the mounting frame, and the large staggered gear 10 is meshed with a plurality of small staggered gears 6.

[0041] In this embodiment, the design of the roller system allows the borehole imager to move smoothly and flexibly in the borehole. The design of the U-shaped hinged ear 5 and the connecting rod 7 allows the roller assembly to rotate in multiple directions, thereby improving the adaptability and stability of the borehole imager. Especially in complex and changeable rock environments, this design can ensure that the probe remains stable during movement to avoid collision and damage. The power system drives the large staggered axis gear 10 by rotating the motor 9, which in turn drives the small staggered axis gear 6 to rotate, thereby realizing the expansion and closing of the roller 8. The borehole imager fits exactly against the inner wall, making the movement of the borehole imager in the borehole more precise and controllable. In addition, the material selection of the roller assembly has also been carefully considered, and wear-resistant, corrosion-resistant and lightweight materials, such as engineering plastics or special alloys, are usually used to ensure stable performance and reduced maintenance costs under long-term use.

[0042] In another optional embodiment, the remote control system includes a wired signal transmission device, a remote control auxiliary device, a control module for operating the internal rotating motor 9 and the external roller 8, a video decoder and a data storage module. A motor brake structure is provided at one end of the connecting rod 7 close to the roller 8, and the motor brake structure is provided on the roller 8. The motor brake structure includes a motor and a brake pad. The remote control system also includes a motor drive module for driving the rotating motor to operate.

[0043] In this embodiment, the design of the remote control system makes the operation of the borehole imaging instrument more convenient and safer. The combination of the wired signal transmission device and the remote control auxiliary device allows the operator to

[0044] Precise control at a location far away from the borehole imager greatly improves work efficiency and safety.

[0045] In particular, the motor brake structure can quickly stop the rotation of the roller 8 when needed, thereby avoiding accidental collision or damage. The design of the motor and brake pad included in the motor brake structure makes the braking process fast and reliable, while also reducing noise and vibration during operation.

[0046] In addition, the video decoder and data storage module can process and store the video data captured by the high-definition camera 10 in real time, which facilitates the subsequent image analysis and processing. These data can be used for various applications such as geological exploration and mining lithology analysis, thereby improving the application value of the borehole imager in actual work.

[0047] Finally, the motor drive module can accurately control the operation of the rotary motor, thereby realizing precise control of the speed and direction of the roller 8. This control method not only improves the operational flexibility of the borehole imager, but also ensures its stability and reliability in complex geological environments.

[0048] In another optional embodiment, the number of roller assemblies is ≧3 and they are evenly distributed on the outer circumferential surface of the main frame 1, the roller 8 is provided with a rubber sleeve or anti-slip grooves, and the material of the high-definition glass protective cover 2 includes but is not limited to: borosilicate glass, soda-lime boron glass, and quartz glass.

[0049] In this embodiment, the number and distribution of the roller assemblies are designed to improve the stability and adaptability of the borehole imager when it moves in the borehole. By using at least three roller assemblies and ensuring that they are evenly distributed on the outer circumferential surface of the main frame 1, uniform support for the inner wall of the borehole can be achieved, reducing the shaking and swinging of the probe during movement.

[0050] In addition, the rubber sleeve or anti-skid pattern design provided on the roller 8 can increase the friction between the roller and the contact surface, especially in a wet or slippery drilling environment. This design can provide better grip and ensure the stable movement of the drilling imager.

[0051] In the material selection of the high-definition glass protective cover 2, borosilicate glass, soda-lime boron glass or stone are used.

[0052] Corrosion-resistant and high-temperature-resistant materials such as quartz glass can ensure the long-term stable operation of the probe in harsh environments. The high transparency and wear resistance of these materials also help to ensure the imaging quality of the camera and protect the probe from damage by the external environment.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A borehole imager suitable for multi-aperture, gain imaging effect, characterized in that: include: A main frame (1), a panoramic camera (4) mounted on the top of the main frame (1), a high-definition glass protective cover (2) covering the panoramic camera (4), and a conical nut (3) arranged on the top of the high-definition glass protective cover (2); A roller system is arranged on the outer peripheral side of the main frame (1); a remote control system is arranged inside the main frame (1); The roller system comprises a plurality of roller assemblies evenly arranged on the circumference of the main frame (1) and a power system located inside the main frame (1) and driving the roller assemblies to rotate; The roller assembly comprises a U-shaped hinged ear (5) and a connecting rod (7), wherein the U-shaped hinged ear (5) is fixed to the outer peripheral side of the main frame (1), a roller (8) is arranged at the bottom end of the connecting rod (7), a small offset gear (6) is arranged at the upper end of the connecting rod (7), and the upper end of the connecting rod (7) is hinged to the U-shaped hinged ear (5); the main frame (1) is located at a contact position with the U-shaped hinged ear (5), and is provided with an open groove corresponding to the small offset gear (6), and one side of the small offset gear (6) extends into the main frame (1) through the open groove; The power system comprises a rotating motor (9) and a large staggered axis gear (10) arranged on the top of the rotating motor (9), the rotating motor (9) is arranged inside the main frame (1), a mounting frame is arranged inside the main frame (1), the rotating motor (9) is mounted on the mounting frame, and the large staggered axis gear (10) is meshed with a plurality of small staggered axis gears (6).

2. A borehole imager suitable for multi-aperture and gain imaging effect according to claim 1, characterized in that: A screw hole with an internal thread is arranged inside the conical nut (3), a fixing seat (21) with an external thread matching the screw hole is arranged on the top of the high-definition glass protection cover (2), and the conical nut (3) is threadedly connected to the high-definition glass protection cover (2).

3. A borehole imager suitable for multi-aperture and gain imaging effect according to claim 1, characterized in that: The remote control system comprises a wired signal transmission device, a remote control auxiliary device, a control module for operating an internal rotating motor (9) and an external roller (8), a video decoder and a data storage module.

4. A borehole imager suitable for multi-aperture and gain imaging effect according to claim 1, characterized in that: A motor brake structure is provided at one end of the connecting rod (7) close to the roller (8); the motor brake structure is arranged on the roller (8); the motor brake structure comprises a motor and a brake pad; and the remote control system further comprises a motor drive module for driving the rotating motor to operate.

5. A borehole imager suitable for multi-aperture and gain imaging effect according to claim 1, characterized in that: The number of the roller assemblies is ≥ 3 and they are evenly distributed on the outer circumferential surface of the main frame (1).

6. A borehole imager suitable for multi-aperture and gain imaging effect according to claim 1, characterized in that: The roller (8) is provided with a rubber sleeve or anti-slip grooves.

7. A borehole imager suitable for multi-aperture and gain imaging effect according to claim 1, characterized in that: The material of the high-definition glass protective cover (2) includes, but is not limited to: borosilicate glass, soda-lime boron glass, and quartz glass.

Citation Information

Patent Citations

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