Underground water monitoring device for coal mine exploration

Abstract

The invention relates to the technical field of monitoring devices, and discloses an underground water monitoring device for coal mine exploration, which comprises a connecting block, a monitoring device is mounted at the lower part of the connecting block, a ball head cover matched with a central ball head is arranged in the center of the upper part of the connecting block, and the free end of a ball rod of the central ball head is fixed at the lower end of the middle part of a universal driving head; a plurality of liquid storage cavities are annularly formed in the upper portion in the universal driving head, a sliding piston is installed in each liquid storage cavity, the lower portions of the liquid storage cavities communicate with hydraulic cavities, transmission rods are installed in the hydraulic cavities in a sliding mode, and the tops of the transmission rods are connected with the hydraulic cavities in a sliding and sealing mode. The top end spherical surface of the transmission rod abuts against the interior of a pit surrounding the periphery of the upper portion of the connecting block. A hanging rod provided with a control line in a penetrating mode is fixed to the upper portion of the universal driving head.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring devices, and in particular to groundwater monitoring, in particular to a groundwater monitoring device for coal mine survey. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. Generally, when coal mines are mined, it is necessary to survey the coal mine area. Through a variety of survey data, the state of the underground structure during coal mining is monitored in real time. Groundwater is one of the more important survey data in coal mine surveys. Workers need to use special monitoring devices to monitor the groundwater in coal mines in real time to ensure the safety of normal coal mining.

[0003] Coal mine groundwater generally uses monitoring devices to survey the groundwater below it. The monitoring devices are usually equipped with cameras and various sensors required for surveys, and various parameters of groundwater are surveyed through various types of sensors. However, in order to ensure the overall size of the existing monitoring devices and to facilitate extension into the underground, the cameras installed on them usually do not have multi-directional and multi-angle monitoring functions, which results in the current monitoring devices having a limited monitoring range and unsatisfactory environmental survey results for groundwater. Summary of the invention

[0004] In order to solve the problem that the current groundwater environmental survey device cannot meet the functional requirements of multi-directional and multi-angle monitoring, the present invention provides a groundwater monitoring device for coal mine survey.

[0005] The present invention is implemented by the following technical solutions: A groundwater monitoring device for coal mine survey, including a connecting block with a monitoring device installed at the bottom, a ball head cover matched with a center ball head is provided in the center of the upper part of the connecting block, and the free end of the ball rod of the center ball head is fixed to the lower end of the middle part of the universal drive head; a plurality of liquid storage chambers are arranged in an upper ring inside the universal drive head, each liquid storage chamber is installed with its own sliding piston, the lower part of the liquid storage chamber is connected with its own hydraulic chamber, a transmission rod is slidably installed in the hydraulic chamber, the top of the transmission rod is connected to the hydraulic chamber in a sliding and sealing manner, and the top spherical surface of the transmission rod rests on a pit arranged around the upper part of the connecting block; a suspension rod with a control line is fixed on the upper part of the universal drive head.

[0006] When implemented, it includes a connecting block with a monitoring device installed at the bottom, the connecting block is hemispherical, with the spherical surface facing downward, an extension rod is fixed at the center of the lower part of the connecting block, and the lower end of the extension rod is installed with a monitoring device, and a ball head cover matched with the central ball head is provided at the center of the upper part of the connecting block, and the ball head of the central ball head is movably installed in the ball head cover to form a universal ball joint structure for fixed-point restriction to avoid uncontrollable range and angle of movement, and the free end of the ball rod of the central ball head is fixed at the lower end of the middle part of the universal drive head; a plurality of liquid storage chambers are arranged in the upper ring of the universal drive head, each liquid storage chamber is independent and not connected to each other, and a vertical transmission rod is slidably installed in each hydraulic chamber; Each liquid storage chamber is equipped with its own sliding piston, and the lower part of the liquid storage chamber is connected with its own hydraulic chamber. The hydraulic chamber is arranged in a ring around the middle and lower part of the universal drive head. The liquid storage chamber and the hydraulic chamber are connected by a liquid hole. The inner diameter of the liquid storage chamber is larger than the inner diameter of the hydraulic chamber. A transmission rod is slidably installed in the hydraulic chamber, and the top of the transmission rod is slidably sealed with the hydraulic chamber. A piston sleeve with a sealing gasket is installed on the top of the transmission rod. Preferably, a spring connected to the top of the hydraulic chamber is installed in the middle part of the piston sleeve, and the upper part of the spring is fixed beside the liquid hole to serve as a driving reset member to assist the transmission rod in retracting. The top spherical surface of the transmission rod rests on the concave pits arranged around the upper part of the connecting block, and the connecting block is pushed to an inclined state by extending the transmission rod; a suspension rod with a control line is fixed on the upper part of the universal drive head, and the control line of the sliding piston is installed in the suspension rod. By operating above the suspension rod, the sliding piston control is realized to press or extract the liquid from the liquid storage chamber into or out of the hydraulic chamber.

[0007] As an alternative, a hydraulic transmission pipe communicating with the liquid storage chamber is installed in the boom, and the movement of the transmission rod is realized through the hydraulic transmission pipe.

[0008] When in use, when it is necessary to monitor or survey the groundwater underground in the coal mine, the device is slowly lowered until it is placed in the groundwater. After the water level reaches a suitable level, the monitoring device collects groundwater data and transmits it to the survey terminal. If the angle of the monitoring device needs to be adjusted, the sliding piston is controlled to press the hydraulic oil in the liquid storage chamber into the hydraulic chamber, or hydraulic oil is injected into the liquid storage chamber through the hydraulic delivery pipe. The hydraulic oil enters the hydraulic chamber through the liquid hole, pushes the transmission rod out, and moves the transmission rod outward to push the connecting block downward. At the same time, the sliding piston or hydraulic delivery pipe on the opposite side is controlled in reverse, and the spring contracts to assist the transmission rod to retract inward. At this time, the center ball head is tilted and rotated in the ball head cover to achieve precision in matching, thereby realizing the offset tilt of the connecting block.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a groundwater monitoring device for coal mine surveying. The universal ball head structure can realize joint-like movement. The transmission rod is driven by hydraulic pressure to realize flexible movement of the connecting block, which is convenient for driving the monitoring device to move in all directions, further realizing multi-angle monitoring and acquisition, and realizing the multi-directional and multi-angle monitoring and surveying of the camera of the monitoring device. At the same time, it is convenient for surveying complex groundwater environments. In addition, the overall structural design is dense and compact, which can effectively ensure the overall size and can enter a small and complex environment to carry out surveying operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram showing the overall structure of the present invention.

[0011] Figure 2 An exploded view showing the present invention. In the figure: 1-universal drive head, 11-liquid hole, 12-liquid storage chamber, 13-hydraulic chamber, 14-center ball head, 2- boom, 3-transmission rod, 31-spring, 32-piston sleeve, 4-connection block, 41-pit, 42-ball head cover, 5- Monitoring device, 6-Extension rod. DETAILED DESCRIPTION

[0012] The specific embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0013] A groundwater monitoring device for coal mine exploration, such as Figure 1~2 As shown: it includes a connecting block 4 with a monitoring device 5 installed at the bottom, the connecting block 4 is hemispherical, with the spherical surface facing downward, an extension rod 6 is fixed at the lower center of the connecting block 4, and the lower end of the extension rod 6 is installed with the monitoring device 5, and a ball head cover 42 is provided at the upper center of the connecting block 4 to cooperate with the central ball head 14, and the ball head of the central ball head 14 is movably installed in the ball head cover 42 to form a universal ball joint structure for fixed-point restriction to avoid uncontrollable range and angle of movement, and the free end of the ball rod of the central ball head 14 is fixed to the lower end of the middle part of the universal drive head 1; a plurality of liquid storage chambers 12 are arranged around the upper inner part of the universal drive head 1, and each liquid storage chamber 12 is independent and not connected to each other. In particular, in this embodiment, there are 6 liquid storage chambers 12, that is, 6 completely identical hydraulic chambers 13 are evenly distributed around the middle and lower part of the universal drive head 1, and a vertical transmission rod 3 is slidably installed in each hydraulic chamber 13; Each liquid storage chamber 12 is equipped with its own sliding piston, and the lower part of the liquid storage chamber 12 is connected with its own hydraulic chamber 13, and the hydraulic chamber 13 is arranged in a ring around the middle and lower part of the universal drive head 1. The liquid storage chamber 12 and the hydraulic chamber 13 are connected through a liquid hole 11, and the inner diameter of the liquid storage chamber 12 is larger than the inner diameter of the hydraulic chamber 13. A transmission rod 3 is slidably installed in the hydraulic chamber 13, and the top of the transmission rod 3 is slidably sealed with the hydraulic chamber 13. A piston sleeve 32 with a sealing gasket is installed on the top of the transmission rod 3. Preferably, a connecting rod 32 is installed in the middle of the piston sleeve 32. The spring 31 at the top of the hydraulic chamber 13, the upper part of the spring 31 is fixed next to the liquid hole 11, and serves as a driving reset member to assist the transmission rod 3 in retracting. The top spherical surface of the transmission rod 3 is against the pit 41 arranged around the upper part of the connecting block 4, and the connecting block 4 is pushed to a tilted state by extending the transmission rod 3; a suspension rod 2 with a control line is fixed to the upper part of the universal drive head 1, and the control line of the sliding piston is installed in the suspension rod 2. By operating above the suspension rod 2, the sliding piston control is realized to press or extract the liquid from the liquid storage chamber 12 into or out of the hydraulic chamber 13.

[0014] As an alternative, a hydraulic delivery pipe connected to the liquid storage chamber 12 is installed in the suspension rod 2, and the movement of the transmission rod 3 is realized through the hydraulic delivery pipe.

[0015] When in use, when it is necessary to monitor or survey the groundwater underground in the coal mine, the device is slowly lowered until it is placed in the groundwater. After the water level reaches a suitable level, the monitoring device 5 collects groundwater data and transmits it to the survey terminal. If it is necessary to adjust the angle of the monitoring device 5, the sliding piston is controlled to press the hydraulic oil in the liquid storage chamber 12 into the hydraulic chamber 13, or hydraulic oil is injected into the liquid storage chamber 12 through the hydraulic delivery pipe. The hydraulic oil enters the hydraulic chamber 13 through the liquid hole 11, pushes the transmission rod 3 out, and moves the transmission rod 3 outward, pushing the connecting block 4 downward. At the same time, the sliding piston or hydraulic delivery pipe on the opposite side is controlled in reverse, and the spring 31 contracts to assist the transmission rod 3 to retract inward. At this time, the center ball head 14 is tilted and rotated in the ball head cover 42 to achieve precision matching, thereby realizing the offset tilt of the connecting block 4.

[0016] The scope of protection claimed by the present invention is not limited to the above specific embodiments. For those skilled in the art, the present invention may have various deformations and changes. Any modifications, improvements and equivalent substitutions made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A groundwater monitoring device for coal mine exploration, characterized in that: The invention comprises a connecting block (4) with a monitoring device (5) installed at the bottom, a ball head cover (42) matched with a central ball head (14) is provided at the center of the upper part of the connecting block (4), and the free end of the ball rod of the central ball head (14) is fixed to the lower end of the middle part of the universal drive head (1); a plurality of liquid storage chambers (12) are arranged in an annular manner at the upper part of the universal drive head (1), each liquid storage chamber (12) is installed with a respective sliding piston, the lower part of the liquid storage chamber (12) is connected with a respective hydraulic chamber (13), a transmission rod (3) is slidably installed in the hydraulic chamber (13), the top of the transmission rod (3) is slidably sealedly connected to the hydraulic chamber (13), and the top spherical surface of the transmission rod (3) is pressed against a concave pit (41) arranged around the upper part of the connecting block (4); and a suspension rod (2) with a control line inserted therethrough is fixed to the upper part of the universal drive head (1).

2. The groundwater monitoring device for coal mine exploration according to claim 1, characterized in that: A piston sleeve (32) with a sealing gasket embedded therein is mounted on the top of the transmission rod (3).

3. The groundwater monitoring device for coal mine exploration according to claim 2, characterized in that: A spring (31) connected to the top of the hydraulic chamber (13) is installed in the middle of the piston sleeve (32).

4. The groundwater monitoring device for coal mine exploration according to claim 1, characterized in that: The liquid storage chamber (12) and the hydraulic chamber (13) are connected via a liquid hole (11).

5. The groundwater monitoring device for coal mine exploration according to claim 1, characterized in that: An extension rod (6) is fixed at the center of the lower part of the connection block (4), and a monitoring device (5) is installed at the lower end of the extension rod (6).

6. The groundwater monitoring device for coal mine exploration according to claim 1, characterized in that: The connecting block (4) is hemispherical.

7. The groundwater monitoring device for coal mine exploration according to claim 1, characterized in that: The ball head of the central ball head (14) is movably mounted in the ball head cover (42).

8. The groundwater monitoring device for coal mine exploration according to claim 1, characterized in that: The lower middle portion of the universal drive head (1) is evenly distributed with six identical hydraulic chambers (13), and a vertical transmission rod (3) is slidably mounted in each hydraulic chamber (13).

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