Mine hole inspection device

Abstract

The utility model discloses a mine hole inspection device which comprises a supporting base, a balance weight mechanism connected with the supporting base, an electric take-up and pay-off mechanism arranged above the balance weight mechanism, a balance weight block arranged below the balance weight mechanism and corresponding to a mine blast hole, and a recording mechanism electrically connected with the electric take-up and pay-off mechanism. And the counterweight block is connected with the electric take-up and pay-off mechanism through a measuring rope. A sensor or an encoder arranged in the electric take-up and pay-off mechanism is used for detecting the moving distance of the measuring rope. When the electric take-up and pay-off mechanism unwinds or retracts the measuring rope, the sensor or the encoder can monitor and record the movement of the measuring rope and transmit the data to the recording mechanism in the form of electric signals. After the recording mechanism receives the electric signals, the electric signals are converted into specific numerical values through a built-in data processing system, so that measurement and data recording of the depth of the blast hole are realized; errors caused by manual measurement and recording are avoided, and the safety and efficiency of operation are improved at the same time.

Description

Technical Field

[0001] The present application relates to a field, and in particular to a mine borehole inspection device. Background Art

[0002] The traditional method of blasthole inspection mainly relies on manual measurement using a ruler. This method has many disadvantages, including large human errors, inaccurate measurement results due to the operator's visual judgment and manual operation; low efficiency, especially when there are a large number of blastholes, manual measurement is time-consuming and labor-intensive; data recording is prone to errors, and handwritten records are not only slow, but also difficult to recognize due to unclear handwriting or messy records; this in turn affects the accuracy and efficiency of blasthole inspection and increases the overall operating costs and risks. Utility Model Content

[0003] In order to solve the problem that the traditional blasthole inspection method mainly relies on manual measurement using a ruler, which affects the accuracy and efficiency of blasthole detection, the present application provides a mine borehole inspection device.

[0004] The mine borehole inspection device provided in this application adopts the following technical solution:

[0005] A mine hole inspection device is used for measuring mine blastholes, comprising a support seat placed on the ground, a counterweight mechanism connected to the support seat, an electric retractable wire mechanism arranged above the counterweight mechanism, a counterweight block arranged below the counterweight mechanism and corresponding to the mine blasthole, and a recording mechanism electrically connected to the electric retractable wire mechanism, wherein the counterweight block and the electric retractable wire mechanism are connected by a measuring rope.

[0006] By adopting the above technical solution, the built-in sensor or encoder of the electric retractable wire mechanism detects the moving distance of the measuring rope. When the electric retractable wire mechanism releases or retracts the measuring rope, the sensor or encoder monitors and records the movement of the measuring rope, and transmits these data to the recording mechanism in the form of electrical signals. After receiving these electrical signals, the recording mechanism converts them into specific values ​​through the built-in data processing system, thereby realizing the measurement and data recording of the blasthole depth. This electrical connection method not only improves the degree of automation of measurement, but also ensures the accuracy and reliability of data recording, avoids errors caused by manual measurement and recording, and improves the safety and efficiency of operations.

[0007] Preferably, the counterweight block includes a plurality of coaxially arranged weights, the counterweight mechanism includes a control unit, a magnetic block connected to the measuring rope, and a plurality of electromagnetic generating blocks electrically connected to the control unit and coaxially arranged with the magnetic block, the control unit is used to control the active electromagnetic connection between every two adjacent electromagnetic generating blocks, or to control the active electromagnetic connection between the electromagnetic generating block and the magnetic block.

[0008] By adopting the above technical solution, the diameter of the counterweight block is selected according to the size of the mine blasthole aperture, so that the weight block can pass through the mine blasthole smoothly. The control unit uses an active electromagnetic connection between two adjacent electromagnetic generating blocks, or between the electromagnetic generating block and the magnetic block to counterweight the weight block that needs to pass through the mine blasthole.

[0009] Preferably, an electromagnetic layer for electromagnetism generation through the control unit is provided on the inner circumference of the electromagnetic generating block, and a magnetic layer for active electromagnetic connection with other electromagnetic layers is provided on the outer circumference of the electromagnetic generating block.

[0010] By adopting the above technical solution, the electromagnetic layer and magnetic layer of the electromagnetic generating block are used to achieve precise control of the weight block passing through the mine blasthole, and the counterweight is flexibly adjusted by electromagnetism to ensure that the weight block can pass through the blasthole smoothly and perform accurate hole inspection measurement.

[0011] Preferably, the support seat is provided with a limiting rod which can approach or move away from the weight block along the radial direction of the weight block, and the end of the limiting rod passes through a plurality of the weights in sequence to movably abut against other limiting rods.

[0012] By adopting the above technical solution, the limit rod is used to limit other weights that do not need to pass through the mine blasthole, so that these weights do not fall down.

[0013] Preferably, the limit rod is threadedly connected to the support seat, and the end of the limit rod away from the weight is provided with a telescopic motor electrically connected to the counterweight mechanism, and the telescopic motor is used to drive the limit rod to approach or move away from the counterweight block along the radial direction of the counterweight block.

[0014] By adopting the above technical solution, the control unit in the counterweight mechanism sends a signal to the telescopic motor, and the telescopic motor can adjust the weight block that needs to pass through the mine blasthole by adjusting the limit rod.

[0015] Preferably, the electric retractable wire mechanism includes a shell, a support frame arranged inside the shell, and a drum rotatably cooperated with the support frame and wound around the measuring rope, and the end of the measuring rope passes through the counterweight mechanism and is connected to the counterweight block.

[0016] By adopting the above technical scheme, the automatic release and pay-out of the measuring rope is realized through the precise control of the electric pay-out and pay-out mechanism, and the winding of the measuring rope with the drum and the connection of the end of the measuring rope with the counterweight block ensure the efficient, accurate and stable measurement of the blasthole.

[0017] Preferably, the axis of the drum is connected to a discharge and receive motor electrically connected to the recording mechanism, and the discharge and receive motor is used to drive the drum to rotate relative to the support frame to tighten or loosen the measuring rope.

[0018] By adopting the above technical solution, the drum is directly driven to rotate by the retractable electric motor to realize automatic tightening and loosening of the measuring rope, thereby improving the automation degree of blasthole measurement and ensuring the accuracy of the measurement process and the convenience of operation.

[0019] Preferably, a telescopic mechanism is provided between the electric wire retracting and releasing mechanism and the recording mechanism, and a telescopic end of the telescopic mechanism is connected to the recording mechanism to drive the recording mechanism to move up and down.

[0020] By adopting the above technical solution, the recording mechanism can be moved up and down according to the viewing angle and operating habits of the staff, so that the staff can clearly view the display and operating interface of the recording mechanism whether standing or sitting.

[0021] Preferably, a handle is provided above the recording mechanism.

[0022] By adopting the above technical solution, the handle improves the portability of the equipment, allowing the operator to move and position the device more conveniently, especially in complex mining environments. The design of the handle makes the entire borehole inspection process more flexible and efficient.

[0023] Preferably, the support seat and the counterweight mechanism are connected via a triangular connecting frame.

[0024] By adopting the above technical solution, the triangular connecting frame realizes a stable connection between the support seat and the counterweight mechanism, thereby enhancing the stability and durability of the overall structure. At the same time, the geometric stability of the triangle is used to reduce the shaking or deviation of the device during use, thereby ensuring the accuracy of the measurement process.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The built-in sensor or encoder of the electric retractable wire mechanism detects the moving distance of the measuring rope. When the electric retractable wire mechanism releases or retracts the measuring rope, the sensor or encoder monitors and records the movement of the measuring rope, and transmits these data to the recording mechanism in the form of electrical signals. After receiving these electrical signals, the recording mechanism converts them into specific values ​​through the built-in data processing system, thereby realizing the measurement and data recording of the blasthole depth. This electrical connection method not only improves the degree of automation of measurement, but also ensures the accuracy and reliability of data recording, avoids errors caused by manual measurement and recording, and improves the safety and efficiency of operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of a mine borehole inspection device according to an embodiment of the present application.

[0028] Figure 2 It is a front view of a mine borehole inspection device in an embodiment of the present application, in which the upper structure of the electric wire-retracting and -releasing mechanism is omitted, the measuring rope is in a tightened state, and the aperture of the mine blasthole used is relatively small.

[0029] Figure 3 It is a front view of a mine borehole inspection device according to an embodiment of the present application, in which the upper structure of the electric wire-retracting and -releasing mechanism is omitted, the measuring rope is in a relaxed state, and the aperture of the mine blasthole used is relatively small.

[0030] Figure 4 It is a front view of a mine borehole inspection device according to an embodiment of the present application, in which the upper structure of the electric wire-retracting and -releasing mechanism is omitted, the measuring rope is in a relaxed state, and the aperture of the mine blasthole used is relatively large.

[0031] Figure 5 It is a top view of a mine hole inspection device according to an embodiment of the present application, in which the upper structure of the counterweight mechanism and the weight assembly are omitted.

[0032] Description of reference numerals:

[0033] 1. Support seat; 11. Limit rod; 12. Telescopic motor; 2. Counterweight mechanism; 21. Magnetic block; 22. Electromagnetic generating block; 221. Electromagnetic layer; 222. Magnetic layer; 3. Electric retractable wire mechanism; 31. Shell; 32. Support frame; 33. Drum; 34. Retractable and discharge motor; 4. Counterweight block; 41. Weight; 5. Recording mechanism; 6. Measuring rope; 7. Telescopic mechanism; 8. Handle; 9. Triangular connecting frame; 100. Mine blasthole. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] Reference Figure 1-4A mine hole inspection device is used for measuring a mine blasthole 100, comprising a support seat 1 for being placed on the ground, a counterweight mechanism 2 connected to the support seat 1, an electric retractable wire mechanism 3 arranged above the counterweight mechanism 2, a counterweight block 4 arranged below the counterweight mechanism 2 and corresponding to the mine blasthole 100, and a recording mechanism 5 electrically connected to the electric retractable wire mechanism 3, wherein the counterweight block 4 is connected to the electric retractable wire mechanism 3 by a measuring rope 6.

[0036] In summary, the built-in sensor or encoder of the electric retractable wire mechanism 3 detects the moving distance of the measuring rope 6. When the electric retractable wire mechanism 3 releases or retracts the measuring rope 6, the sensor or encoder monitors and records the movement of the measuring rope 6, and transmits these data to the recording mechanism 5 in the form of electrical signals. After receiving these electrical signals, the recording mechanism 5 converts them into specific numerical values ​​through the built-in data processing system, thereby realizing the measurement and data recording of the blasthole depth. This electrical connection method not only improves the degree of automation of the measurement, but also ensures the accuracy and reliability of the data recording, avoids the errors caused by manual measurement and recording, and improves the safety and efficiency of the operation.

[0037] Further, see Figure 2-4 The counterweight block 4 includes a plurality of coaxially arranged weights 41, the counterweight mechanism 2 includes a control unit, a magnetic block 21 connected to the measuring rope 6, and a plurality of electromagnetic generating blocks 22 electrically connected to the control unit and coaxially arranged with the magnetic block 21, the control unit is used to control the active electromagnetic connection between every two adjacent electromagnetic generating blocks 22, or to control the active electromagnetic connection between the electromagnetic generating block 22 and the magnetic block 21.

[0038] In this embodiment, through precise electromagnetic control, the weighting block 4 can adapt to mine blastholes 100 of different apertures to achieve flexible weighting. The weighting block 4 is composed of a plurality of coaxial weights 41, which allows the weights 41 of suitable diameter to be selected according to the aperture of the blasthole for smooth passage. The weighting mechanism 2 uses a control unit to precisely control the electromagnetic connection between the electromagnetic generating blocks 22, or adjust the electromagnetic connection between the electromagnetic generating blocks 22 and the magnetic block 21, thereby controlling the weighting of the weight block passing through the blasthole. This design improves the adaptability and accuracy of the measurement, while the precise control of the electromagnetic force enhances the flexibility and safety of the operation, and improves the efficiency and reliability of the borehole inspection process;

[0039] The electromagnetic connection of the present application is to magnetically adsorb the corresponding weights to connect them together, thereby forming 41 weights that need to pass through the mine blasthole 100. The electromagnetic connection technology in the present application allows the magnetic field generated by the electromagnetic generating block to be accurately activated or released by the control unit to achieve magnetic adsorption of a single or multiple weights in the weight group. This design allows only the weights that need to pass through the mine blasthole to be adsorbed and connected into one piece, forming a counterweight block group suitable for a specific blasthole diameter, while other weights remain in a non-magnetic state, avoiding unnecessary connections. This electromagnetic connection method not only improves the flexibility of counterweight selection, but also ensures the accuracy and reliability of the measurement process, while reducing the complexity of the operation and improving the efficiency of mine blasthole measurement.

[0040] To sum up, the counterweight block 4 selects the diameter of the counterweight block according to the size of the aperture of the mine blasthole 100 so that the weight block can pass through the mine blasthole 100 smoothly. The control unit uses the active electromagnetic connection between two adjacent electromagnetic generating blocks 22, or between the electromagnetic generating block 22 and the magnetic block 21 to counterweight the weight block that needs to pass through the mine blasthole 100.

[0041] Further, see Figure 5 , Figure 5 The square dotted area and the circular dotted area are at two different heights. The inner side of the electromagnetic generating block 22 is provided with an electromagnetic layer 221 for electromagnetism through a control unit, and the outer side of the electromagnetic generating block 22 is provided with a magnetic layer 222 for active electromagnetic connection with other electromagnetic layers 221.

[0042] In this embodiment, the mine borehole inspection device realizes precise control of the weight block by using the electromagnetic layer 221 and the magnetic layer 222 of the electromagnetic generating block 22, wherein the electromagnetic layer 221 generates the required electromagnetic force through the control unit, and the magnetic layer 222 allows the establishment of active electromagnetic connection with other electromagnetic layers 221. Such a design allows the counterweight to be dynamically adjusted according to the specific size of the blasthole, ensuring that the weight block can smoothly pass through the blasthole for borehole inspection measurement, thereby improving the flexibility and accuracy of the measurement, and the controllability of the electromagnetic force also enhances the safety of operation and the reliability of the device.

[0043] In summary, the electromagnetic layer 221 and the magnetic layer 222 of the electromagnetic generating block 22 are used to achieve precise control of the weight block passing through the mine blasthole 100, and the counterweight is flexibly adjusted by electromagnetism to ensure that the weight block can pass through the blasthole smoothly and perform accurate hole inspection measurement.

[0044] Further, see Figure 2-4The support seat 1 is provided with a limiting rod 11 which can approach or move away from the counterweight block 4 along the radial direction of the counterweight block 4, and the end of the limiting rod 11 passes through a plurality of weights 41 in sequence to cooperate with other limiting rods 11 for active abutment.

[0045] In this embodiment, the mine borehole inspection device can accurately control the radial direction of the weight block 4 through the limit rod 11 set on the support seat 1. The end of the limit rod 11 passes through the weight 41 and movably abuts against other limit rods 11, effectively limiting the movement of non-target weights 41 and preventing the weights 41 that do not need to pass through the blasthole from accidentally falling off. This structural design not only ensures that only appropriate weights 41 participate in the measurement process, but also improves the operational safety of the device and the accuracy of the measurement, while simplifying the borehole inspection operation, making the entire borehole inspection process more efficient and orderly.

[0046] In summary, the limiting rod 11 is used to limit other weights 41 that do not need to pass through the mine blasthole 100 so that these weights 41 do not fall off.

[0047] Further, see Figure 2-4 The limit rod 11 is threadedly connected to the support seat 1, and the end of the limit rod 11 away from the weight 41 is provided with a telescopic motor 12 electrically connected to the counterweight mechanism 2, and the telescopic motor 12 is used to drive the limit rod 11 to approach or move away from the counterweight block 4 along the radial direction of the counterweight block 4.

[0048] In this embodiment, the mine borehole inspection device realizes the automatic adjustment function of the radial position of the limit rod 11 along the weight block 4 through the precise drive of the telescopic motor 12. The control unit sends signals to the telescopic motor 12, and the telescopic motor 12 responds to these signals and moves the limit rod 11 through the threaded connection to get closer to or away from the weight block 4, thereby selectively releasing or restricting the movement of the weight block. Such a design allows only appropriate weight blocks to participate in the measurement, ensuring the accuracy of the measurement and the adaptability of the blasthole, while improving the automation level of the entire borehole inspection process and the convenience of operation.

[0049] In summary, the control unit in the counterweight mechanism 2 sends a signal to the telescopic motor 12 , and the telescopic motor 12 can adjust the weight block that needs to pass through the mine blasthole 100 by adjusting the limit rod 11 .

[0050] Further, see Figure 2-4 The electric retractable wire mechanism 3 includes a shell 31, a support frame 32 arranged inside the shell 31, and a drum 33 that rotates with the support frame 32 and is wound around the measuring rope 6. The end of the measuring rope 6 passes through the counterweight mechanism 2 and is connected to the counterweight block 4.

[0051] In this embodiment, the electric retractable wire mechanism 3 realizes the automatic retracting operation of the measuring rope 6 through the internal support frame 32 and the rotating drum 33. The end of the measuring rope 6 is connected to the counterweight block 4, so that when the drum 33 rotates, the measuring rope 6 can drive the counterweight block 4 to move up and down along the blasthole to perform depth measurement. This design not only improves the degree of automation of the measurement, but also ensures the efficiency and accuracy of the measurement process by accurately controlling the retracting and releasing of the measuring rope 6. At the same time, the winding cooperation between the drum 33 and the measuring rope 6 also increases the stability of the measurement, making the entire blasthole measurement work more reliable and convenient.

[0052] In summary, the precise control of the electric pay-and-retract mechanism 3 realizes the automatic pay-and-retract of the measuring rope 6, and the winding of the measuring rope 6 with the drum 33 and the connection of the end of the measuring rope 6 with the counterweight block 4 ensures the high efficiency, accuracy and stability of the borehole measurement.

[0053] Further, see Figure 2-4 The axis of the drum 33 is connected to a discharge motor 34 electrically connected to the recording mechanism 5 , and the discharge motor 34 is used to drive the drum 33 to rotate relative to the support frame 32 to tighten or loosen the measuring rope 6 .

[0054] In this embodiment, the reciprocating motor 34 is directly connected to the axis of the drum 33 and is electrically connected to the recording mechanism 5, so that the operation of the motor can accurately control the rotation of the drum 33, thereby automatically tightening or loosening the measuring rope 6. This design allows the measuring rope 6 to move synchronously with the counterweight block 4, realizing automatic measurement of the blasthole depth, greatly improving the automation level of the measurement. The operator can monitor the measurement process and record data through the recording mechanism 5, thereby ensuring the accuracy of the measurement, simplifying the operation process, and improving work efficiency.

[0055] In summary, the drum 33 is directly driven to rotate by the retractable discharge motor 34 to realize automatic tightening and loosening of the measuring rope 6, thereby improving the automation of blasthole measurement and ensuring the accuracy of the measurement process and the convenience of operation.

[0056] Further, see Figure 2-4 A telescopic mechanism 7 is provided between the electric retractable wire mechanism 3 and the recording mechanism 5, and a telescopic end of the telescopic mechanism 7 is connected to the recording mechanism 5 to drive the recording mechanism 5 to move up and down.

[0057] In this embodiment, the design of the telescopic mechanism 7 enables the recording mechanism 5 to move up and down according to the viewing angle and operating habits of the staff, so that the staff can clearly view the display and operating interface of the recording mechanism 5 whether standing or sitting. Such a design improves the comfort and convenience of operation, reduces the fatigue of the staff during long-term operation, and also improves work efficiency and accuracy.

[0058] Further, see Figure 2-4 A handle 8 is provided above the recording mechanism 5 .

[0059] In this embodiment, the handle 8 is arranged above the recording mechanism 5, which enhances the portability of the mine borehole inspection device and allows the operator to easily carry and position the device. This design is particularly suitable for changing mining environments, where the position of the device needs to be frequently adjusted to adapt to different measurement points. The handle 8 provides a physical interface that enables one-handed or two-handed operation, and the operator can quickly adjust the device as needed, achieving more flexible and efficient blasthole measurement work.

[0060] In summary, the handle 8 improves the portability of the device, allowing the operator to move and position the device more conveniently. Especially in complex mining environments, the design of the handle 8 makes the entire borehole inspection process more flexible and efficient.

[0061] Further, see Figure 2-4 The support seat 1 and the counterweight mechanism 2 are connected by a triangular connecting frame 9.

[0062] In this embodiment, the design of the triangular connecting frame 9 provides a solid connection point for the support base 1 and the counterweight mechanism 2 through its inherent geometric stability. This structure not only enhances the stability and durability of the entire borehole inspection device, but also ensures the accuracy of the measurement by reducing the shaking or deviation that occurs during use. The stability of the triangular connecting frame 9 is derived from the structural characteristics of the triangle, which can evenly disperse the force, thereby maintaining the stability of the equipment in complex terrains such as mines, making blasthole measurement more reliable.

[0063] In summary, the triangular connecting frame 9 realizes a stable connection between the support seat 1 and the counterweight mechanism 2, thereby enhancing the stability and durability of the overall structure. At the same time, the geometric stability of the triangle is used to reduce the shaking or deviation of the device during use, thereby ensuring the accuracy of the measurement process.

[0064] The device is used for testing blastholes in mines and measuring the depth of holes. It consists of a measuring rope 6, a counterweight, an electric retractor and a recording instrument.

[0065] The measuring rope 6 can be made of a rubber-coated thin steel wire rope with a scale, and is used to calibrate the value displayed by the recording instrument. It can also be used to directly record the value using the scale on the rope when the instrument is damaged.

[0066] The counterweight is made of a small weight 41 of about 500g or a plumb bob, etc., and its diameter is smaller than the radius of the blast hole.

[0067] The electric wire reel is composed of a wheel, a motor and a battery. The motor can drive the wheel to rotate for wire reeling and wire releasing, and has a limit device. The rechargeable battery can power the motor. The recording instrument displays the release function, can store more groups of values ​​and points, has the function of calculating the total value, and has an export function, which can export the point map and the line length and point or position. The value of each point or position can be recorded manually and automatically to form a point map with hole depth and deletion value.

[0068] The design of the recording instrument integrates multiple functions such as display, data storage, numerical calculation and export, which greatly improves the efficiency and accuracy of mine blasthole 100 measurement. The instrument can track and update the release and reeling status of the measuring rope 6 to ensure the monitoring of the measurement process. Its storage capacity allows multiple sets of data to be stored for a long time, while the calculation function can summarize and analyze these data to provide a total value. In addition, the export function allows the measurement results to be converted into point maps and specific numerical reports for further analysis and recording. The combination of manual and automatic recording modes allows the operator to flexibly choose the recording method according to actual needs to form a detailed point map with hole depth information, while the deletion function allows timely correction of erroneous or unnecessary data to ensure the accuracy and reliability of the data.

[0069] The logger uses one or more of the following technologies to achieve detection:

[0070] (1. Mechanical sensor: The length of the line is detected by the rotation of the measuring rope 6. When the measuring rope 6 passes through the electric line retractor, there will be a counter or a similar mechanical device to record the length change of the measuring rope 6.

[0071] (2. Electronic sensor: An electronic sensor is used to accurately measure the movement of the measuring rope 6. For example, a photoelectric sensor or a Hall effect sensor can detect a mark or a magnetic field change on the measuring rope 6, thereby calculating the movement distance of the measuring rope 6.

[0072] (3. Encoder: An encoder is installed on the wheel of the electric retractor. The encoder can determine the length change of the measuring rope 6 by measuring the rotation of the wheel.

[0073] (4. Tension sensor: If the tension of the measuring rope 6 can reflect its length, a tension sensor will be used to indirectly measure the movement of the measuring rope 6.

[0074] (5. Software algorithm: The recorder has a built-in software algorithm that can calculate the length change of the measuring rope 6 based on the physical properties of the measuring rope 6 (such as elasticity, density, etc.) and known initial conditions.

[0075] (6. Wireless communication technology: If the recorder and the electric retractor are separated, wireless communication technology will be used to transmit the measurement data.

[0076] (7. Clock: The recorder has a built-in clock to ensure that the measured data is synchronized with the actual time, thereby achieving detection.

[0077] Please note that these are only reasonable guesses based on the description. The exact implementation details will vary, depending on the design of the device and the specific technology of the manufacturer. If you need to know in detail how the logger performs the detection, you will need to consult the technical manual of the device or contact the manufacturer for more accurate information.

[0078] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mine borehole inspection device, used for measuring mine blastholes, characterized in that: The invention comprises a support seat (1) for being placed on the ground, a counterweight mechanism (2) connected to the support seat (1), an electric retractable wire mechanism (3) arranged above the counterweight mechanism (2), a counterweight block (4) arranged below the counterweight mechanism (2) and corresponding to a mine blasthole, and a recording mechanism (5) electrically connected to the electric retractable wire mechanism (3); the counterweight block (4) and the electric retractable wire mechanism (3) are connected via a measuring rope (6).

2. A mine borehole inspection device according to claim 1, characterized in that: The counterweight block (4) comprises a plurality of coaxially arranged weights (41), the counterweight mechanism (2) comprises a control unit, a magnetic block (21) connected to the measuring rope (6), and a plurality of electromagnetic generating blocks (22) electrically connected to the control unit and coaxially arranged with the magnetic block (21), the control unit being used to control the active electromagnetic connection between every two adjacent electromagnetic generating blocks (22), or to control the active electromagnetic connection between the electromagnetic generating block (22) and the magnetic block (21).

3. A mine borehole inspection device according to claim 2, characterized in that: The inner peripheral side of the electromagnetic generating block (22) is provided with an electromagnetic layer (221) for generating magnetism by the control unit, and the outer peripheral side of the electromagnetic generating block (22) is provided with a magnetic layer (222) for active electromagnetic connection with other electromagnetic layers (221).

4. A mine borehole inspection device according to claim 2, characterized in that: The support seat (1) is provided with a limiting rod (11) capable of approaching or moving away from the weight block (4) along the radial direction of the weight block (4), and the end of the limiting rod (11) passes through a plurality of weights (41) in sequence to movably abut against other limiting rods (11).

5. A mine borehole inspection device according to claim 4, characterized in that: The limiting rod (11) is threadedly connected to the support seat (1); an end of the limiting rod (11) away from the weight (41) is provided with a telescopic motor (12) electrically connected to the counterweight mechanism (2); the telescopic motor (12) is used to drive the limiting rod (11) to approach or move away from the counterweight block (4) along the radial direction of the counterweight block (4).

6. A mine borehole inspection device according to claim 1, characterized in that: The electric wire-retracting and -releasing mechanism (3) comprises a housing (31), a support frame (32) arranged inside the housing (31), and a roller (33) rotatably matched with the support frame (32) and wound around the measuring rope (6); an end of the measuring rope (6) passes through the counterweight mechanism (2) and is connected to the counterweight block (4).

7. A mine borehole inspection device according to claim 6, characterized in that: The axis of the roller (33) is connected to a discharge and receive motor (34) electrically connected to the recording mechanism (5), and the discharge and receive motor (34) is used to drive the roller (33) to rotate relative to the support frame (32) to tighten or loosen the measuring rope (6).

8. A mine borehole inspection device according to claim 1, characterized in that: A telescopic mechanism (7) is provided between the electric retractable wire mechanism (3) and the recording mechanism (5), and the telescopic end of the telescopic mechanism (7) is connected to the recording mechanism (5) so as to drive the recording mechanism (5) to move up and down.

9. A mine borehole inspection device according to claim 1, characterized in that: A handle (8) is provided above the recording mechanism (5).

10. A mine borehole inspection device according to claim 1, characterized in that: The support seat (1) and the counterweight mechanism (2) are connected via a triangular connecting frame (9).

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