A mine-used drilling-while-drilling storage type drilling pressure monitoring device

Abstract

The utility model provides a kind of mine drilling storage type borehole pressure monitoring device with drill, including pressure monitoring probe, communication line and mine handheld terminal, the pressure monitoring probe is connected by thread by monitoring nipple and charging battery cylinder;Monitoring nipple and charging battery cylinder between still realize electric connection by built-in aviation plug and aviation socket, and realize sealing pressure bearing by two O-ring two groups;The communication line is USB-Type C data line, for connecting the USB socket inside pressure monitoring probe and mine handheld terminal;The mine handheld terminal is built-in pressure monitoring software, for parameter setting and data reception and display.

Description

Technical Field

[0001] This utility model relates to the field of borehole pressure monitoring, and in particular to a mine-use drilling storage type borehole pressure monitoring device. Background Technology

[0002] In the mining industry, drilling is a common construction process. Accurately grasping the pressure during drilling is of great significance for assessing geological conditions, ensuring construction safety, and optimizing drilling technology. Mining-use drilling pressure monitoring devices with storage are developed to acquire and store drilling pressure data in real time for subsequent analysis. However, traditional mine-use drilling pressure monitoring devices with storage while drilling have many technical shortcomings. First, the sensors have limited accuracy and sensitivity, making it difficult to accurately capture subtle pressure changes, resulting in significant errors in the monitoring data and failing to provide a reliable basis for construction decisions. Second, the storage capacity is relatively small, and in long-term continuous drilling operations, data storage overflow is prone to occur, causing the loss of important data. Third, the stability of data transmission is poor. Due to the complex electromagnetic environment and harsh working conditions in mines, data transmission interruptions and packet loss often occur when transmitting stored data, affecting the integrity and timeliness of the data. Fourth, the device has insufficient anti-interference capabilities. The mining environment contains a large amount of electromagnetic interference and mechanical vibration interference, and traditional devices are easily affected by these interference factors, leading to distorted monitoring data or equipment failure. Utility Model Content

[0003] In order to solve the problems of accurate and continuous monitoring and data storage of borehole pressure in existing mine drilling pressure monitoring devices, and to solve the problems of existing borehole pressure monitoring technology, this utility model provides a mine drilling pressure monitoring device with storage while drilling. The technical solution of the mining-use drilling pressure monitoring device with storage during drilling provided by this utility model is as follows: A mine-use drilling storage type borehole pressure monitoring device includes a pressure monitoring probe, a communication line, and a mine-use handheld terminal. The pressure monitoring probe is composed of a monitoring section and a rechargeable battery cylinder connected by threads. The monitoring section and the rechargeable battery cylinder are also electrically connected through built-in aviation plugs and aviation sockets, and are sealed and pressure-bearing through two sets of two O-rings. The communication line is a USB-Type C data cable, used to connect the USB socket inside the pressure monitoring probe to the mining handheld terminal; The mining handheld terminal has built-in pressure monitoring software for parameter setting, data reception, and display. Furthermore, the monitoring section includes: a filter plug, a monitoring front end, a monitoring protective cover, and a monitoring rear connector; the filter plug is threaded to the inner hole of the monitoring front end; a stabilizer is installed on the surface of the monitoring front end, and the other end is connected to a pressure transmitter via threads and a sealing gasket; the monitoring protective cover is threaded to the monitoring front end and the monitoring rear connector, and is sealed with O-rings; O-rings are provided at both ends of the monitoring protective cover, and a rectangular groove is formed inside, in which a monitoring circuit board is fixed with a cylindrical head screw and encapsulated with silicone; the inner hole of the monitoring rear connector is threaded to an aviation plug; Furthermore, the rechargeable battery casing includes: a battery front end, a battery protective cover, a battery rear end, and a sealing cap. The battery front end is threadedly connected to an aviation socket and the battery protective cover, and sealed with an O-ring. The battery protective cover is filled with a battery protection board and a rechargeable battery pack. The battery rear end is threadedly connected to the battery protective cover and a USB socket, and a fixing ring is fitted on its outer surface. The sealing cap is threadedly connected to the battery rear end and sealed with an O-ring. Furthermore, the centralizer has two sets of three-wing structures that are 180° apart; the fixing ring has three evenly distributed ribs with extended contact surfaces; the centralizer and the fixing ring cooperate to position the probe at the center of the drill bit. Furthermore, the filter plug is a cone shape with a rounded end; the cone surface is evenly divided into strip-shaped slits, and the rounded end has a single hole; thus forming a water flow filtration channel and guiding the pressure transmitter. Furthermore, the monitoring circuit board includes a microprocessor in the middle; a storage chip and a high-precision voltage regulator chip are respectively arranged on both sides of the microprocessor; the microprocessor controls the pressure transmitter to collect data, the storage chip stores the data, and the high-precision voltage regulator chip supplies power to the circuit; Furthermore, the pressure transmitter has a range of 0–60 MPa, a power supply voltage of 9–36 V, an output signal of 4–20 mA, and an operating temperature of -40–120 °C.

[0004] In summary, the beneficial effects of this utility model are as follows: This invention employs a high-precision, high-sensitivity pressure sensor, which can capture pressure changes during the drilling process in real time and accurately, avoiding monitoring data errors caused by insufficient sensor accuracy in traditional devices. At the same time, by optimizing the data processing algorithm and enhancing the stability of data storage and transmission, the integrity and reliability of the monitoring data are ensured, providing more accurate and reliable data support for mining construction. In addition, to address the limited storage capacity of traditional devices, this invention is equipped with a large-capacity, high-performance data storage module, which can easily meet the data storage needs of long-term continuous drilling operations. At the same time, by introducing advanced data compression technology and optimizing the storage structure, data storage efficiency and reading speed are further improved, providing convenience for subsequent data analysis. In the complex electromagnetic environment and harsh working conditions of underground mines, this utility model effectively solves the problems of data transmission interruption and packet loss in traditional devices by adopting data transmission protocols and technologies. At the same time, by enhancing the anti-interference capability of data transmission and optimizing the transmission path, the stability and real-time performance of data transmission are further improved, ensuring that monitoring data can be transmitted to the ground analysis system in a timely and accurate manner. To address issues such as electromagnetic interference and mechanical vibration interference in mining environments, this device significantly improves its anti-interference capabilities and durability by optimizing the overall structure, adding multiple anti-interference protection measures, and selecting high-performance, wear-resistant materials. This not only ensures stable operation of the device in complex environments but also extends its service life and reduces maintenance costs. Attached Figure Description

[0005] Figure 1 This is a connection diagram of the mining-use drilling storage pressure monitoring device of this utility model; Figure 2 This is a three-dimensional schematic diagram of the pressure monitoring probe of the mining drilling storage pressure monitoring device of this utility model; Figure 3 This is a schematic cross-sectional view of the monitoring section structure of the mining-use drilling storage pressure monitoring device of this utility model; Figure 4 This is a cross-sectional schematic diagram of the rechargeable battery cylinder structure of the mining drilling storage pressure monitoring device of this utility model; Figure 5 This is a three-dimensional schematic diagram of the filter plug of this utility model.

[0006] As shown in the figure: 1. Pressure monitoring probe, 2. Communication line, 3. Mining handheld terminal, 4. Monitoring section, 5. Rechargeable battery tube, 6. Monitoring front end, 7. Filter plug, 8. Centralizer, 9. Pressure transmitter, 10. Monitoring protective cover, 11. Circuit board frame, 12. Monitoring circuit board, 13. Monitoring rear end, 14. Aviation plug, 15. Cylindrical head screw, 18. Aviation socket, 19. Battery front end, 20. Battery protection board, 21. Battery protective cover, 22. Rechargeable battery pack, 23. Battery rear end, 24. Fixing ring, 25. Sealing cap, 26. USB socket, 12-1. Microprocessor, 12-2. Memory chip, 12-3. High-precision voltage regulator chip. Detailed Implementation

[0007] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail below: like Figure 1-5 As shown, this embodiment discloses a mine-use drilling storage-type borehole pressure monitoring device, including a pressure monitoring probe 1, a communication line 2, and a mine-use handheld terminal 3. The pressure monitoring probe 1 is composed of a monitoring section 4 and a rechargeable battery cylinder 5 connected by threads. The monitoring section 4 and the rechargeable battery cylinder 5 are also electrically connected through a built-in aviation plug 14 and aviation socket 18, and sealed and pressure-bearing through two sets of two O-rings. The communication line 2 is a USB-Type C data cable used to connect the USB socket inside the pressure monitoring probe 1 to the mine-use handheld terminal 3. The mine-use handheld terminal 3 has built-in pressure monitoring software for parameter setting, data reception, and display. This embodiment discloses a mine-use drilling storage-type borehole pressure monitoring device, mainly composed of three parts: a pressure monitoring probe 1, a communication line 2, and a mine-use handheld terminal 3. The goal is to achieve continuous monitoring, data storage, and convenient data viewing of the bottom pressure of mine boreholes, thereby solving the shortcomings of existing borehole pressure monitoring technologies. The monitoring sub 4 and the rechargeable battery sleeve 5 are connected by threads, and the built-in aviation plug 14 and aviation socket 18 provide an electrical connection, ensuring reliable power and signal transmission. During assembly, the operator tightens the monitoring sub 4 and the rechargeable battery sleeve 5 by screwing them together, and simultaneously inserts the aviation plug 14 into the aviation socket 18 to complete the electrical connection. In actual use, the two work as a whole as they go down into the borehole with the drill bit, withstanding the pressure and environmental influences inside the borehole. The threaded connection is simple and reliable, easy to assemble and disassemble, and convenient for later maintenance and component replacement. The use of the aviation plug 14 and socket ensures a stable electrical connection and avoids signal transmission interruption. The USB-Type C data cable is a universal high-speed data transmission interface with reversible plug-in capability. Through a specific electrical protocol, it enables high-speed and stable data transmission between the pressure monitoring probe 1 and the mining handheld terminal 3. The mining handheld terminal 3 has built-in pressure monitoring software. Based on specific algorithms and programs, this software enables parameter setting, data reception, and display functions for the pressure monitoring probe 1. By establishing a communication connection with the probe, the software can send commands to the probe to set parameters such as sampling frequency and measurement range. Simultaneously, it receives pressure data collected and transmitted by the probe, processes and analyzes it, and displays it intuitively on the terminal screen. The mining handheld terminal 3 provides operators with a convenient platform for operation and data viewing. The software allows for flexible setting of the probe's operating parameters to meet different monitoring needs. The real-time pressure data display enables operators to promptly understand pressure changes within the borehole. like Figure 1-5As shown, the monitoring section 4 includes: a filter plug 7, a monitoring front end head 6, a monitoring protective cover 10, and a monitoring rear connector 13; the filter plug 7 is threaded to the inner hole of the monitoring front end head 6; a stabilizer 8 is mounted on the surface of the monitoring front end head 6, and the other end is connected to a pressure transmitter 9 via threads and a sealing gasket; the monitoring protective cover 10 is threaded to the monitoring front end head 6 and the monitoring rear connector 13, and is sealed with O-rings; O-rings are provided at both ends of the monitoring protective cover 10, and a rectangular groove is opened inside, in which the monitoring circuit board 12 is fixed by a cylindrical head screw 15 and potted with silicone; the inner hole of the monitoring rear connector 13 is threaded to an aviation... Plug 14; In this embodiment, the water flow in the borehole flows to the filter plug 7 under pressure. The water flow first contacts the strip-shaped gap on the conical surface. Larger particles and impurities are blocked outside by the gap. The water flow enters the interior of the filter plug 7 through the gap, and then is further filtered through the single hole on the arc surface at the tail end, finally flowing to the pressure transmitter 9. The filter plug 7 effectively prevents impurities in the borehole from entering the pressure transmitter 9, protecting the measuring element of the pressure transmitter 9 from damage and extending the service life of the pressure transmitter 9. At the same time, the filtered water flow can more accurately reflect the bottom hole pressure, improving the accuracy of pressure measurement. During probe assembly, the filter plug 7 is screwed into the inner hole of the monitoring front head 6, and the centralizer 8 is installed. Then, the pressure transmitter 9 is connected to the monitoring front head 6 via threads, and a sealing gasket is installed. When the probe enters the borehole with the drill string, the three wings of the centralizer 8 contact the borehole wall, automatically adjusting the position of the probe to be centered in the borehole. The water flow in the borehole enters the monitoring front head 6 after passing through the filter plug 7, and finally acts on the pressure transmitter 9. The use of the centralizer 8 ensures that the probe is centered in the borehole, avoiding friction or collision between the probe and the borehole wall, reducing the risk of probe damage. At the same time, it enables the pressure transmitter 9 to more accurately measure the true pressure at the bottom of the borehole, improving the accuracy and stability of the measurement. During further assembly, the monitoring circuit board 12 is first placed into the rectangular slot and fixed with the cylindrical head screw 15, and then silicone potting is performed; then the protective cover 10 is threaded onto the monitoring front end head 6 and the monitoring rear connector 13, and an O-ring is installed for sealing; during use, the protective cover 10 provides a relatively stable and safe working environment for the monitoring circuit board 12. Finally, the operator screws the aviation plug 14 into the inner hole of the monitoring connector 13 to complete the connection with the monitoring circuit board 12; after the entire probe assembly is completed, the aviation plug 14 is connected to the aviation socket 18 of the rechargeable battery 5 to realize the transmission of power and signal. like Figure 1-5As shown, the rechargeable battery pack 5 includes: a battery front end 19, a battery protective cover 21, a battery rear end 23, and a sealing cap 25. The battery front end 19 is connected to the aviation socket 18 and the battery protective cover 21 by threads and sealed by an O-ring. The battery protective cover 21 is filled with a battery protection plate 20 and a rechargeable battery pack 22. The battery rear end 23 is connected to the battery protective cover 21 and a USB socket 26 by threads, and a fixing ring 24 is fitted on its outer surface. The sealing cap 25 is connected to the battery rear end 23 by threads and sealed by an O-ring. In this embodiment, the aviation socket 18 is installed during assembly. Inside the front end 19 of the battery, the front end 19 of the battery is screwed onto the battery protective cover 21. During assembly, the battery protection board 20 and the rechargeable battery pack 22 are placed inside the battery protective cover 21, and then potting is performed. After the potting material cures, it firmly fixes the battery protection board 20 and the rechargeable battery pack 22 inside the protective cover. The battery protective cover 21 provides a safe and stable working environment for the battery. When it is not necessary to charge the probe or transmit data, the sealing cap 25 is screwed onto the rear end 23 of the battery. When the USB socket 26 is needed, the sealing cap 25 is unscrewed. like Figure 1-5 As shown, the centralizer 8 has two sets of three-wing structures that are 180° apart; the fixing ring 24 has three evenly distributed ribs with extended contact surfaces; the centralizer 8 and the fixing ring 24 cooperate to position the probe at the center of the drill bit; in this embodiment, the centralizer 8 is installed on the surface of the monitoring front end head 6, and its two sets of three-wing structures that are 180° apart can contact the borehole wall when the probe enters the borehole, so that the probe is kept in the center position of the borehole. like Figure 1-5 As shown, the filter plug 7 is a conical body with a rounded end. The conical surface has uniformly spaced strip-shaped slits, and the rounded end has a single hole. This forms a water flow filtration channel and guides the water to the pressure transmitter 9. In this embodiment, the conical shape and special opening design of the filter plug 7 are to achieve water flow filtration and guiding functions. The uniformly spaced strip-shaped slits on the conical surface and the single hole on the rounded end form a water flow filtration channel. When the water in the borehole passes through the filter plug 7, larger impurities are blocked by the strip-shaped slits and the single hole, while the water flow can pass smoothly and is ultimately guided to the pressure transmitter 9. like Figure 1-5As shown, the monitoring circuit board 12 includes a microprocessor 12-1 in the middle; a storage chip 12-2 and a high-precision voltage regulator chip 12-3 are respectively arranged on both sides of the microprocessor 12-1; the microprocessor 12-1 controls the pressure transmitter 9 to collect data, the storage chip 12-2 stores the data, and the high-precision voltage regulator chip 12-3 supplies power to the circuit; in this embodiment, the microprocessor 12-1 sends a control signal to the pressure transmitter 9 according to a preset program and sampling frequency, triggering the pressure transmitter 9 to collect the bottom pressure data; the pressure transmitter 9 converts the collected pressure signal into an electrical signal and transmits it to the microprocessor 12-1; the microprocessor 12-1 processes and analyzes the signal, and then stores the data in the storage chip 12-2; the high-precision voltage regulator chip 12-3 monitors the circuit voltage in real time, and automatically adjusts the output voltage when the voltage fluctuates to ensure the stability of the circuit voltage; like Figure 1-5 As shown, the pressure transmitter 9 has a range of 0–60 MPa and a power supply voltage of 9–36 V; the output signal is 4–20 mA, and the operating temperature is -40–120 °C. In this embodiment, the pressure inside the borehole acts on the measuring element of the pressure transmitter 9, which converts the pressure signal into a corresponding electrical signal. After processing by the internal circuit, this electrical signal is output as a standard 4–20 mA current signal and transmitted to the microprocessor 12-1 of the monitoring circuit board 12. The wide range design can meet the pressure measurement needs of most mining boreholes, improving the applicability of the equipment. The wide power supply voltage range and operating temperature range enable the pressure transmitter 9 to operate normally under different power conditions and harsh environmental temperatures, enhancing the reliability and stability of the equipment. The standard 4–20 mA output signal facilitates interface and data transmission with the monitoring circuit board 12, improving the system's compatibility.

[0008] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mine-use drilling storage type borehole pressure monitoring device, comprising a pressure monitoring probe (1), a communication line (2), and a mine-use handheld terminal (3), characterized in that: The pressure monitoring probe (1) is composed of a monitoring section (4) and a rechargeable battery cylinder (5) connected by threads; the monitoring section (4) and the rechargeable battery cylinder (5) are also electrically connected by built-in aviation plug (14) and aviation socket (18), and are sealed and pressure-bearing by two sets of two O-rings; The communication line (2) is a USB-Type C data line, used to connect the USB socket (26) inside the pressure monitoring probe (1) to the mining handheld terminal (3); The mining handheld terminal (3) has built-in pressure monitoring software for parameter setting, data reception and display.

2. The mining-use drilling pressure monitoring device with storage as described in claim 1, characterized in that... The monitoring section (4) includes: a filter plug (7), a monitoring front end head (6), a monitoring protective cover (10), and a monitoring rear connector (13); the filter plug (7) is threaded to the inner hole of the monitoring front end head (6); a stabilizer (8) is installed on the surface of the monitoring front end head (6), and the other end is connected to a pressure transmitter (9) through a thread and a sealing gasket; the monitoring protective cover (10) is threaded to the monitoring front end head (6) and the monitoring rear connector (13), and is sealed with an O-ring; the monitoring protective cover (10) has O-rings at both ends and a rectangular groove inside, in which a monitoring circuit board (12) is fixed by a cylindrical head screw (15) and encapsulated with silicone; the inner hole of the monitoring rear connector (13) is threaded to an aviation plug (14).

3. The apparatus according to claim 2, characterized in that... The rechargeable battery tube (5) includes: a battery front end (19), a battery protective cover (21), a battery rear end (23), a retaining ring (24), and a sealing cap (25). The battery front end (19) is connected to the aviation socket (18) and the battery protective cover (21) by a thread and is sealed by an O-ring. The battery protective cover (21) is filled with a battery protection plate (20) and a rechargeable battery pack (22). The battery rear end (23) is connected to the battery protective cover (21) and the USB socket (26) by a thread, and a retaining ring (24) is fitted on its outer surface. The sealing cap (25) is connected to the battery rear end (23) by a thread and is sealed by an O-ring.

4. The apparatus according to claim 3, characterized in that: The stabilizer (8) has two sets of three-wing structures with a 180° difference in phase; the fixing ring (24) has three evenly distributed ribs with extended contact surfaces; the stabilizer (8) and the fixing ring (24) work together to position the probe at the center of the drill bit.

5. The apparatus according to claim 2, characterized in that... The filter plug (7) is a cone shape with a rounded end; the cone surface is evenly divided into strip-shaped gaps, and the rounded end has a single hole; forming a water flow filtration channel and guiding the pressure transmitter (9).

6. The apparatus according to claim 2, characterized in that... The monitoring circuit board (12) includes a microprocessor (12-1) in the middle; a storage chip (12-2) and a high-precision voltage regulator chip (12-3) are arranged on both sides of the microprocessor (12-1); the microprocessor (12-1) controls the pressure transmitter (9) to collect data, the storage chip (12-2) saves the data, and the high-precision voltage regulator chip (12-3) supplies power to the circuit.

7. The apparatus according to claim 2, characterized in that... The pressure transmitter (9) has a range of 0 to 60 MPa, a power supply voltage of 9 to 36 V, an output signal of 4 to 20 mA, and an operating temperature of -40 to 120 °C.

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