Positioning device for camera of mine drilling peeping instrument

Abstract

The utility model provides a camera positioning device of a mining drilling peeping instrument, and belongs to the technical field of hole exploration. The camera positioning device of the mining drilling peeping instrument comprises a sleeve used for containing a camera, one end of the sleeve is provided with a protective curtain capable of being opened and closed, the other end of the sleeve is fixedly connected with a probe rod, the probe rod is of a hollow structure and is communicated with the sleeve, a pull rod is movably inserted into the probe rod, and the pull rod is fixedly connected with the sleeve. One end of the pull rod extends to the outside of the probe rod, and the other end of the pull rod is connected with the camera so as to drive the camera to move. According to the scheme, the camera positioning device of the mining drilling peeping instrument can effectively protect the camera by arranging the sleeve and the openable and closable protective curtain, and the camera can be telescopically moved through the pull rod, so that the camera is convenient to use; in addition, the camera can be always positioned in the center of the drill hole through the sleeve, the imaging is kept in the center, and the peeping effect is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole exploration, in particular to a camera positioning device for a mine borehole peep instrument. Background Art

[0002] Currently, borehole peepholes are primarily used to peer into the rock mass structure within anchor holes, pressure relief holes, various geological boreholes, and fractures. These devices effectively reveal discontinuities (such as bedding, joints, and fissures), water inrush points, roof delamination, and the filling and compaction of grouting within the coal and rock masses. This provides a valuable basis for support design, surrounding rock stability assessment, and grouting process optimization. Existing technology involves connecting a camera to a data cable and inserting the camera directly into the borehole using a probe or a suitably stiff data cable. However, due to the use of water to flush the hole during drilling and the potential for water-bearing fractures to accumulate, the camera moves against the borehole wall due to gravity. This often results in the camera becoming stained with rock dust or water, forcing the camera to terminate. Furthermore, the imaging is not centered, resulting in relatively poor viewing quality. Utility Model Content

[0003] The utility model provides a camera positioning device for a mine borehole peep instrument, which solves the technical problem that the camera is often covered with rock powder, mud or water during the process of entering the borehole, so that the peep work is forced to be terminated, resulting in low peep efficiency.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A mining borehole peephole camera positioning device includes a sleeve for accommodating a camera, one end of the sleeve is provided with an openable and closable protective curtain, the other end of the sleeve is fixedly connected to a probe rod, the probe rod is a hollow structure and is communicated with the sleeve, a pull rod is movably inserted into the interior of the probe rod, one end of the pull rod extends to the outside of the probe rod, and the other end of the pull rod is connected to the camera to drive the camera to move.

[0006] Optionally, the openable and closable protective curtain includes a plurality of fan-shaped pieces, the arcuate edges of the fan-shaped pieces are fixed to the ends of the sleeves, and the plurality of fan-shaped pieces are symmetrically distributed and spliced ​​into a circle.

[0007] Optionally, a plurality of mounting grooves are provided on the surface of the sleeve, and a limiting support frame is hingedly connected inside the mounting groove, and the limiting support frame can swing back and forth along the axial direction of the sleeve.

[0008] Optionally, the position-limiting support frame is a retractable structure.

[0009] Optionally, the limiting support frame includes a main frame, one end of the main frame is hinged to the bottom of the installation slot, the other end of the main frame is provided with a socket, a telescopic frame is movably inserted into the socket, and a spring is installed between the telescopic frame and the main frame.

[0010] Optionally, a roller is installed at one end of the telescopic frame away from the sleeve.

[0011] Optionally, the camera is slidably connected to the inner cavity of the sleeve.

[0012] Optionally, the probe rod is coaxially arranged with the sleeve, the outer diameter of the probe rod is smaller than the outer diameter of the sleeve, and one end of the probe rod connected to the sleeve is provided with a tapered connecting portion.

[0013] The beneficial effects of the above technical solution of the utility model are as follows:

[0014] In the above solution, the mining borehole peephole camera positioning device can effectively protect the camera by providing a casing and an openable and closable protective curtain, and the camera can be telescopically moved by a pull rod, which facilitates the use of the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the camera positioning device for a mining borehole peephole camera of the utility model;

[0016] Figure 2 This is a cross-sectional view of the position limiting support frame of the present utility model;

[0017] Figure 3 This is an end view of the sleeve of the present invention.

[0018] [Reference Signs]

[0019] 1. Casing;

[0020] 2. Inner cavity;

[0021] 3. Mounting slot;

[0022] 4. Limit support frame;

[0023] 5. Probe;

[0024] 6. Pull rod;

[0025] 7. Openable and closable protective curtain;

[0026] 8. Main frame;

[0027] 9. Telescopic frame;

[0028] 10. Spring;

[0029] 11. Roller. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 3 As shown, an embodiment of the utility model provides a camera positioning device for a mine borehole peephole, comprising a casing 1 for accommodating a camera, so that rock dust, mud and water in the borehole will not directly contact the camera, and an openable and closable protective curtain 7 is provided at one end of the casing 1 to prevent rock dust, mud and water from entering the casing 1 during movement and contaminating the camera, thereby affecting the normal operation of the camera, and the other end of the casing 1 is fixedly connected to a probe rod 5, the probe rod 5 is a hollow structure, and is communicated with the casing 1, and a pull rod 6 is movably inserted into the interior of the probe rod 5, one end of the pull rod 6 extends to the outside of the probe rod 5, and the other end of the pull rod 6 is connected to the camera to drive the camera to move.

[0032] like Figure 3 As shown, the openable and closable protective curtain 7 includes a plurality of fan-shaped pieces, each of which is made of a flexible waterproof roll. The arc-shaped edges of the fan-shaped pieces are fixed to the end of the casing 1. The plurality of fan-shaped pieces are symmetrically distributed and spliced ​​into a circle to protect the inner cavity 2 of the casing 1 and prevent rock dust, mud, water, etc. from entering the interior of the casing 1 when the casing 1 moves, thereby further improving the protection effect on the camera. The opening and closing method of the openable and closable protective curtain 7 is simple and easy to operate.

[0033] like Figure 1 As shown, the surface of the sleeve 1 is provided with multiple groups of mounting grooves 3, which are symmetrically distributed. The interior of the mounting grooves 3 is hinged with a limiting support frame 4, and the limiting support frame 4 can swing back and forth along the axial direction of the sleeve 1.

[0034] The position-limiting support frame 4 is a retractable structure, so as to be applicable to drilling holes of different diameters, thereby increasing the scope of application.

[0035] like Figure 2 As shown, the limiting support frame 4 includes a main frame 8, one end of the main frame 8 is hinged to the bottom of the installation slot 3, and the other end of the main frame 8 is provided with a socket, a telescopic frame 9 is movably inserted into the socket, and a spring 10 is installed between the telescopic frame 9 and the main frame 8, so that the telescopic frame 9 can be telescopically moved along the socket.

[0036] like Figure 1 and Figure 2 As shown, a roller 11 is installed at one end of the telescopic frame 9 away from the casing 1 to reduce the resistance of the device moving in the drill hole.

[0037] In this embodiment, the camera is slidably connected to the inner cavity 2 of the cannula 1, and the inner cavity 2 of the cannula 1 is adapted to the outer diameter of the camera, so that the camera is positioned at the center of the cannula 1. The data cable connected to the camera can be installed inside the probe 5 along with the pull rod 6, thereby protecting the data cable and keeping it clean at all times, which is convenient for subsequent cleaning and storage.

[0038] like Figure 1 As shown, the probe rod 5 is coaxially arranged with the casing 1, the outer diameter of the probe rod 5 is smaller than the outer diameter of the casing 1, and one end of the probe rod 5 connected to the casing 1 is provided with a tapered connecting portion to serve as a transition connection.

[0039] The use process of this utility model is as follows:

[0040] Initially, the camera is completely placed inside the casing 1. Then, holding the probe 5, the casing 1 is inserted into the borehole and moved forward along the borehole. When the casing 1 reaches the location where the image is to be captured, the pull rod 6 is pushed forward to move the camera forward along the inner cavity 2 of the casing 1 until the front end of the camera squeezes open the retractable protective curtain 7, allowing the borehole to be recorded. When the image is completed, the pull rod 6 is pulled backward to move the camera backward and fully retract it into the casing 1. At this time, the retractable protective curtain 7 returns to its original position due to its own flexibility, re-sealing the inner cavity 2 of the casing 1. The casing 1 can then be moved again to the next location to continue recording.

[0041] In the above scheme, the mining borehole peephole camera positioning device can effectively protect the camera by setting a casing and an openable and closable protective curtain, and the camera can be retracted and moved by a pull rod, which is convenient for the use of the camera; when the casing moves in the borehole, the camera is completely retracted into the casing, thereby preventing the camera from being contaminated by fallen rock powder, mud and water, etc., thereby improving the protection effect of the camera, and when it is necessary to take pictures, the camera is extended out of the casing for taking pictures; in addition, the casing can always position the camera in the center of the borehole, keeping the image centered, which significantly improves the peeping effect.

[0042] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A mining borehole peep camera positioning device, characterized in that: It includes a sleeve for accommodating a camera, one end of the sleeve is provided with an openable and closable protective curtain, the other end of the sleeve is fixedly connected to a probe rod, the probe rod is a hollow structure, and is communicated with the sleeve, a pull rod is movably inserted inside the probe rod, one end of the pull rod extends to the outside of the probe rod, and the other end of the pull rod is connected to the camera to drive the camera to move.

2. The camera positioning device for a mine borehole peephole according to claim 1, characterized in that: The openable and closable protective curtain comprises a plurality of sector-shaped pieces, the arcuate edges of the sector-shaped pieces are fixed to the ends of the sleeves, and the plurality of sector-shaped pieces are symmetrically distributed and spliced ​​into a circle.

3. The camera positioning device for a mine borehole peephole according to claim 1, characterized in that: The surface of the sleeve is provided with a plurality of mounting grooves, the interior of the mounting grooves is hingedly connected to a limit support frame, and the limit support frame can swing back and forth along the axial direction of the sleeve.

4. The camera positioning device for a mine borehole peephole according to claim 3, characterized in that: The position limiting support frame is a retractable structure.

5. The camera positioning device for a mine borehole peephole according to claim 4, characterized in that: The limiting support frame includes a main frame, one end of the main frame is hinged to the bottom of the installation slot, the other end of the main frame is provided with a socket, a telescopic frame is movably inserted into the socket, and a spring is installed between the telescopic frame and the main frame.

6. The camera positioning device for a mine borehole peephole according to claim 5, characterized in that: A roller is installed on one end of the telescopic frame away from the sleeve.

7. The camera positioning device for a mine borehole peephole according to claim 1, characterized in that: The camera is slidably connected to the inner cavity of the sleeve.

8. The camera positioning device for a mine borehole peephole according to claim 1, characterized in that: The probe rod is coaxially arranged with the sleeve, the outer diameter of the probe rod is smaller than the outer diameter of the sleeve, and one end of the probe rod connected to the sleeve is provided with a tapered connecting portion.

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