An underground coal mine environment monitoring device

Abstract

The application discloses a coal mine underground environment monitoring device and relates to the technical field of sampling and monitoring, which solves the problem that underground water is easily mixed with a large amount of impurities in the sampling process, thereby affecting the accuracy of subsequent monitoring structure when sampling and monitoring underground water in a coal mine underground environment. The coal mine underground environment monitoring device comprises a sampling cylinder and a supporting seat, the supporting seat is installed on the left and right sides of a horizontal expansion assembly, and a rope lifting assembly is installed on the side surface of the horizontal expansion assembly. In the application, the generated vibration force is small during the sampling of underground water samples, the bottom silt cannot be mixed in the underground water due to the vibration force, and the sampled underground water resources meet the standards. Moreover, when the sampling cylinder is sealed, the impurities of the underground water cannot be easily adhered to the inner wall of the opening of the sampling cylinder, the sealing effect of the sampling cylinder is better, and the accuracy of subsequent monitoring of the underground water samples is improved.

Description

Technical Field

[0001] This invention relates to the field of sampling and monitoring technology, specifically to an underground environmental monitoring device for coal mines. Background Technology

[0002] Coal mines are areas where humans extract coal resources from coal-rich areas, and are generally divided into underground coal mines and open-pit coal mines. During underground coal mining operations, it is necessary to monitor the groundwater environment within the mine, which requires the use of appropriate monitoring equipment.

[0003] When monitoring the groundwater environment in coal mines, groundwater samples need to be collected. Before sampling, a site survey should be conducted to understand the groundwater level, quality, flow direction, and permeability, in order to select appropriate sampling points and methods. Simultaneously, sampling points should be chosen in areas with slow-moving groundwater and stable water quality to avoid interference from external factors.

[0004] A Chinese patent with authorization announcement number CN118817396B discloses a coal mine underground water environment monitoring device and monitoring method, including a shell with a first installation groove on the top of the shell. The first installation groove contains a sampling device and a water sample storage component. The water sample storage component includes a sample storage shell and a partition frame. The first installation groove contains the sample storage shell, and the top of the sample storage shell has a groove. The groove forms multiple sets of sample storage slots through the partition frame. Each set of sample storage slots contains a sample storage container. The top of the sample storage container has a detachable top cover with two sets of interfaces. The sampling device is connected to one set of interfaces. The first installation groove also contains a detection component, which is connected to the other set of interfaces. When using this invention, water samples can be quickly collected into the sample storage container through a sampling tube and a first water pump. A second water pump and a second connecting pipe allow a portion of the water sample in the sample storage container to be extracted into a temporary storage tank. Then, a water quality analyzer with a measuring probe is used to analyze the water sample in the temporary storage tank to obtain water quality parameters.

[0005] However, this monitoring device has the following drawbacks in practical use:

[0006] 1. Existing monitoring equipment requires water sampling when detecting groundwater in coal mines. Traditional equipment typically uses pumps and pipelines to sample groundwater. This sampling location is usually close to the groundwater channel, and the vibrations generated during pumping can cause soil erosion along the banks. Furthermore, the extracted groundwater contains a large amount of impurities, affecting the accuracy of groundwater monitoring.

[0007] 2. Existing monitoring equipment monitors groundwater near the shore. The impact force of flowing groundwater causes soil to crumble, resulting in lower-than-ideal groundwater quality at the shore from the outset. Furthermore, the pipe-based groundwater extraction method generates significant vibrations during the extraction process. When sampling water near the bottom, this causes silt and impurities to rise to the surface, leading to higher impurity levels in the extracted samples. Summary of the Invention

[0008] The purpose of this invention is to provide an underground environmental monitoring device for coal mines to solve the problems mentioned in the background art.

[0009] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0010] This invention provides an underground environmental monitoring device for coal mines, including a sampling cylinder and a support base. The support base is installed on the left and right sides of a lateral expansion assembly. A rope lifting assembly is installed on the side of the lateral expansion assembly. An integrated sampling mechanism extending into the groundwater environment is installed at the bottom of the rope lifting assembly. The sampling cylinder is supported and positioned on the inner side of the integrated sampling mechanism.

[0011] The integrated sampling mechanism includes:

[0012] A support clamping assembly is installed at the bottom of the rope lifting assembly. A sampling cylinder is supported and positioned on the inner side of the support clamping assembly. A sealing gripping assembly is provided on the side of the support clamping assembly and is positioned above the sampling cylinder.

[0013] A plunger assembly is mounted on top of the sealing gripping assembly, mounted on the side of the support clamping assembly, and disposed on the side of the rope lifting assembly.

[0014] In a preferred embodiment of the present invention, an elastic pad is installed at the bottom of the sampling cylinder, a support spring is connected to the top of the elastic pad, and a sealing plug is connected to the top of the support spring.

[0015] The sealing plug is located inside the sampling cylinder, and a waterproof ring is installed on the outer side of the bottom of the sealing plug. The waterproof ring is in contact with the inner wall of the sampling cylinder.

[0016] As a preferred embodiment of the present invention, the lateral expansion component includes:

[0017] An intermediate support is provided, with two side blocks mounted on one side. A linear motor is mounted on the side of each side block, and the output end of the linear motor is connected to a main shaft. The main shaft is rotatably connected to the side of the intermediate support.

[0018] The main shaft is movably disposed on the side of the intermediate support;

[0019] A drive belt is connected to the outside of the main shaft via a keyed synchronous pulley on the inner side. The drive belt extends into the interior of the intermediate support. An intermediate shaft is also connected to the inner side of the drive belt via a keyed synchronous pulley. The intermediate shaft is rotatably connected inside the intermediate support.

[0020] Two transverse threaded rods are provided, both of which are rotatably connected inside the intermediate bracket. The two transverse threaded rods are respectively installed on the left and right sides of the intermediate shaft, and the thread directions of the two transverse threaded rods are opposite.

[0021] In a preferred embodiment of the present invention, an expansion arm is threadedly connected to the outer side of the transverse threaded rod, the expansion arm being slidably connected inside the intermediate support and extending to the outer side of the intermediate support.

[0022] The expansion arm has a transverse threaded rod extending outward inside, a vertical arm is fixed to the inner side of the expansion arm by screws, and a support base is fixed to the inner side of the vertical arm by screws.

[0023] As a preferred embodiment of the present invention, the rope lifting assembly includes:

[0024] A side support is welded to the other side of the intermediate bracket. A unwinding roller is positioned on the top of the side support, and a connecting rope is wound around the outer side of the unwinding roller.

[0025] The side support is equipped with a take-up and unwind motor on one side, and the output end of the take-up and unwind motor is connected to an unwind roller. A support clamping assembly is installed and fixed at the bottom of the connecting rope.

[0026] As a preferred embodiment of the present invention, the support and clamping assembly includes:

[0027] The positioning block has a connecting rope mounted on its top, and an L-shaped bracket is fixed to its side by screws. The L-shaped bracket has a positioning hole at its inner bottom.

[0028] The sampling cylinder is positioned and supported on the inner side of the positioning hole.

[0029] The sliding part is located inside the L-shaped bracket. Two sliding blocks are slidably connected inside the sliding part. Clamping arms are installed on the sides of the sliding blocks, and a sampling cylinder is clamped and fixed between the two clamping arms.

[0030] In a preferred embodiment of the present invention, a side compression spring is mounted on the side of the sliding block, and the bottom of the side compression spring is mounted inside the sliding part.

[0031] The L-shaped bracket is equipped with infrared horizontal detection modules on its left and right sides, and the infrared horizontal detection modules are located above the clamping arms.

[0032] As a preferred embodiment of the present invention, the sealing gripping assembly includes:

[0033] A frame body is mounted at the bottom of the plunger assembly and is disposed on the side of the L-shaped bracket. A gripping motor is mounted on one side of the interior of the frame body, and the output end of the gripping motor is connected to a horizontal threaded rod that extends into the interior of the frame body.

[0034] There are two horizontal threaded rods, which are connected to each other and are rotatably connected inside the frame body.

[0035] A horizontal threaded block is threaded to the outside of the horizontal threaded rod and slidably connected to the inside of the frame. A lower gripping arm is installed at the bottom of the horizontal threaded block.

[0036] In a preferred embodiment of the present invention, an upper sealing plug is clamped and fixed between the two lower gripping arms, the upper sealing plug extending into the opening at the top of the sampling cylinder.

[0037] The upper sealing plug has another waterproof ring installed on the outer side of its bottom.

[0038] As a preferred embodiment of the present invention, the plunger assembly includes:

[0039] The upper support plate is welded to the side of the L-shaped bracket. There are two upper support plates, and the top of the upper support plate located at the top supports a telescopic electric cylinder.

[0040] A connecting plate is connected to the output end of the telescopic electric cylinder. The connecting plate is movably disposed between two upper support plates. A lifting linkage is rotatably connected to the bottom of the connecting plate, and the lifting linkage passes through the bottom upper support plate.

[0041] The bottom of the lifting link is equipped with a positioning frame, and the frame body is installed and positioned on the inner side of the positioning frame.

[0042] A side groove is formed on one side of the lifting link. The lifting link is movably connected to a first gear through the side groove on the outside. The first gear is rotatably connected to the bottom of the upper support plate.

[0043] The second gear is meshed with the side of the first gear and rotatably connected to the bottom of the upper support plate. The second gear is connected to the output end of the servo motor, which is mounted on the top of the bottom upper support plate.

[0044] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0045] 1. In underground coal mine environmental monitoring equipment, the sampling cylinder used for sampling groundwater resources can be moved to different heights and locations of the groundwater using a connecting rope. The moving location is far from the groundwater bank, ensuring that the groundwater sample taken through the sampling cylinder does not contain a large amount of bank soil, thus ensuring that the sampled groundwater reflects the actual groundwater conditions. Simultaneously, during the groundwater sampling process, the top opening of the sampling cylinder is sealed using a squeezing and rotating method. This generates minimal vibration, preventing the mixing of bottom-layer silt with the groundwater during sampling, ensuring that the sampled groundwater meets standards. Furthermore, the rotation and squeezing method for sealing the sampling cylinder prevents impurities from adhering to the inner wall of the sampling cylinder opening, resulting in a better seal and reducing the likelihood of leakage and adhesion of other impurities (dust, etc.) to the sampled groundwater, thus improving the accuracy of subsequent groundwater sample monitoring.

[0046] 2. In underground coal mine environmental monitoring equipment, when sampling groundwater, the lifting, moving, and rotating of the upper sealing plug compresses the groundwater sample inside the sampling cylinder, transferring the water pressure to the sampling cylinder. At this time, the pressure transmitted to the groundwater sample is transferred to the support spring via the movable sealing bottom plug and support spring inside the sampling cylinder. This increases the space and capacity for storing groundwater samples inside the sampling cylinder, reducing the probability of problems such as cracks in the sampling cylinder during groundwater sampling.

[0047] 3. In coal mine underground environmental monitoring equipment, when sampling groundwater resources in underground water channels, it is necessary to select appropriate sampling points based on factors such as groundwater level, water quality, flow direction, and permeability. In this case, the distance between the two support bases can be changed by expanding and moving the extension arm, ensuring that the monitoring equipment can be stably placed over water channels of different lengths to meet the monitoring requirements of different groundwater resources within the coal mine. Furthermore, when not in use, the extended portion can be stored inside the intermediate support, reducing the overall size of the monitoring equipment and making it more convenient for transportation, storage, and carrying.

[0048] 4. In underground coal mine environmental monitoring equipment, the sampling tube for groundwater sampling can be supported and positioned using a bottom positioning hole and multiple clamping arms on the side. When sampling groundwater resources using this supported and positioned sampling tube, the fixed sampling tube is less likely to fall off due to the impact of water flow or collisions with objects carried by the water. The upper sealing plug, which seals the sampling tube, is always directly above the opening of the sampling tube, ensuring safety during groundwater sampling. Attached Figure Description

[0049] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0050] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0051] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0052] Figure 2 This is a side view of the overall structure of the present invention;

[0053] Figure 3 This is a cross-sectional structural schematic diagram showing the connection between the lateral expansion component and the rope lifting component of the present invention;

[0054] Figure 4 This is an exploded cross-sectional view of the connection between the sampling cylinder and the upper sealing plug of the present invention;

[0055] Figure 5 This is a schematic diagram of the integrated sampling mechanism and the connection between the sampling cylinder of the present invention;

[0056] Figure 6 This is the present invention. Figure 5 Enlarged structural diagram of region A in the middle;

[0057] Figure 7 This is an exploded view of the connection between the support clamping assembly and the sampling cylinder of the present invention;

[0058] Figure 8 This is a schematic diagram of the connection between the sealing gripping assembly and the plunger assembly of the present invention;

[0059] Figure 9 This is the present invention. Figure 8 Enlarged structural diagram of region B in the middle;

[0060] Figure 10 This is an exploded view of the connection between the sealing gripping component and the lifting linkage of the present invention;

[0061] Figure 11 This is a schematic diagram of the plunger assembly of the present invention;

[0062] In the picture:

[0063] 10. Sampling cylinder; 101. Elastic pad; 102. Support spring; 103. Sealing bottom plug; 104. Waterproof ring;

[0064] 20. Support base;

[0065] 30. Lateral expansion assembly; 301. Intermediate support; 302. Side stop; 303. Linear motor; 304. Main shaft; 305. Drive belt; 306. Intermediate shaft; 307. Lateral threaded rod; 3071. Expansion arm; 3072. Vertical arm;

[0066] 40. Rope lifting assembly; 401. Side support; 4011. Winding motor; 402. Unwinding roller; 403. Connecting rope;

[0067] 50. Integrated sampling mechanism;

[0068] 60. Support clamping assembly; 601. Positioning block; 602. L-shaped bracket; 6021. Infrared horizontal detection module; 603. Positioning hole; 604. Sliding part; 605. Sliding block; 606. Clamping arm; 607. Side compression spring;

[0069] 70. Sealing gripping assembly; 701. Frame body; 702. Gripping motor; 703. Horizontal threaded rod; 704. Horizontal threaded block; 705. Lower gripping arm; 7051. Upper sealing plug;

[0070] 80. Plunger assembly; 801. Upper support plate; 802. Telescopic electric cylinder; 803. Connecting plate; 804. Lifting linkage; 8041. Positioning frame; 805. Side groove; 806. First gear; 807. Second gear; 808. Servo motor. Detailed Implementation

[0071] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0072] Example 1

[0073] Please see Figures 1-11 A coal mine underground environmental monitoring device includes a sampling cylinder 10 and a support base 20. The support base 20 is installed on the left and right sides of a lateral expansion component 30. A rope lifting component 40 is installed on the side of the lateral expansion component 30. An integrated sampling mechanism 50 extending into the groundwater environment is installed at the bottom of the rope lifting component 40. The sampling cylinder 10 is supported and positioned on the inner side of the integrated sampling mechanism 50. The integrated sampling mechanism 50 includes a support clamping component 60, which is installed at the bottom of the rope lifting component 40 and supports and positions the sampling cylinder 10 on its inner side. A sealing gripping component 70 is provided on the side of the support clamping component 60 and is positioned above the sampling cylinder 10. A plunger component 80 is installed on top of the sealing gripping component 70, on the side of the support clamping component 60, and on the side of the rope lifting component 40.

[0074] The working principle described above is as follows: When sampling and testing groundwater resources, firstly, based on the length of the groundwater channel, the lateral expansion component 30 is activated to adjust the distance between the two support seats 20, ensuring that the sampling tube 10 can be positioned above sampling points with good water level, water quality, water flow direction, and permeability during groundwater sampling. Then, during sampling, the rope lifting component 40 is activated to move the sampling tube 10, which is clamped and sealed by the support clamping component 60 and the sealing gripping component 70, to various positions and heights of the groundwater to sample groundwater at different levels. During sampling, the plunger component 80 can drive the sealing gripping component 70 to move up and down, opening the top opening of the sampling tube 10, allowing groundwater to flow normally into the sampling tube 10 to complete the sampling.

[0075] In this invention, the sampling tube 10 for groundwater sampling is located away from the bank of the groundwater, resulting in groundwater samples with a quality more consistent with the average quality of groundwater. The vibration generated during groundwater sampling is lower, reducing the likelihood of soil collapse on the bank and preventing underwater silt from rising to the surface. This leads to more accurate results in subsequent testing, better reflecting the quality of the groundwater environment.

[0076] For details, please refer to the following: Figure 3 The lateral expansion assembly 30 includes an intermediate support 301, two side blocks 302 mounted on one side of the intermediate support 301, a linear motor 303 mounted on the side of the side blocks 302, the output end of the linear motor 303 connected to a main shaft 304, the main shaft 304 rotatably connected to the side of the intermediate support 301, wherein the main shaft 304 is movably disposed on the side of the intermediate support 301; a transmission belt 305, the transmission belt 305 is connected to the outside of the main shaft 304 through a synchronous pulley key provided on the inner side, the transmission belt 305 extends into the interior of the intermediate support 301, the inner side of the transmission belt 305 is connected to an intermediate shaft 306 through a synchronous pulley key, the intermediate shaft 306 is rotatably connected to the interior of the intermediate support 301; and two transverse threaded rods 307, both of which are rotatably connected to the interior of the intermediate support 301, the two transverse threaded rods 307 are respectively installed on the left and right sides of the intermediate shaft 306, and the thread directions of the two transverse threaded rods 307 are opposite.

[0077] In this design, an expansion arm 3071 is threadedly connected to the outer side of the transverse threaded rod 307. The expansion arm 3071 is slidably connected inside the intermediate support 301 and extends to the outer side of the intermediate support 301. The expansion arm 3071 has a transverse threaded rod 307 extending to the outer side inside. A vertical arm 3072 is fixed to the inner side of the expansion arm 3071 by screws. A support seat 20 is fixed to the inner side of the vertical arm 3072 by screws.

[0078] In the underground environmental monitoring equipment of this invention, when detecting groundwater based on the length of the groundwater channel, the linear motor 303 is activated, driving the main shaft 304 connected to the output end of the linear motor 303 to rotate, and causing the transmission belt 305 connected to the outer side of the main shaft 304 via a synchronous pulley to operate. When the transmission belt 305 operates, the intermediate shaft 306 connected to the synchronous pulley on its inner side rotates, causing the transverse threaded rods 307 connected to the left and right sides of the intermediate shaft 306 to rotate. When the transverse threaded rods 307 rotate, the expansion arms 3071 connected to their outer threads can move in the opposite direction, adjusting the spacing of the support seats 20 connected to the inner side of the expansion arms 3071 via the vertical arms 3072, ensuring that the entire equipment can be stably supported on the river channel.

[0079] For details, please refer to the following: Figure 2 and Figure 3 The rope lifting assembly 40 includes a side support 401, which is welded to the other side of the intermediate support 301. The top of the side support 401 supports and positions an unwinding roller 402. A connecting rope 403 is wound around the outside of the unwinding roller 402. A winding motor 4011 is installed on one side of the side support 401. The output end of the winding motor 4011 is connected to the unwinding roller 402. A support clamping assembly 60 is installed and fixed at the bottom of the connecting rope 403.

[0080] In the underground environmental monitoring equipment of the present invention, when sampling groundwater, the take-up and unwind motor 4011 is started to operate, which drives the unwinding roller 402 connected to the output end of the take-up and unwind motor 4011 to rotate, so that the connecting rope 403 wound around the outside of the unwinding roller 402 can be wound up and unwound, which drives the support clamping assembly 60 and the sampling cylinder 10 installed at the bottom of the connecting rope 403 to move up and down.

[0081] For details, please refer to the following: Figure 5 , Figure 6 and Figure 7 The support clamping assembly 60 includes a positioning block 601, a connecting rope 403 mounted on the top of the positioning block 601, an L-shaped bracket 602 fixed to the side of the positioning block 601 by screws, a positioning hole 603 opened in the inner bottom of the L-shaped bracket 602, wherein a sampling cylinder 10 is supported and positioned inside the positioning hole 603; a sliding part 604, which is opened inside the L-shaped bracket 602, and two sliding blocks 605 are slidably connected inside the sliding part 604. A clamping arm 606 is mounted on the side of the sliding block 605, and the sampling cylinder 10 is clamped and fixed between the two clamping arms 606.

[0082] In this design, a side compression spring 607 is installed on the side of the sliding block 605, and the bottom of the side compression spring 607 is installed inside the sliding part 604. Infrared horizontal detection modules 6021 are installed on the left and right sides of the L-shaped bracket 602, and the infrared horizontal detection modules 6021 are located above the clamping arm 606.

[0083] In the above scheme, the side compression spring 607 is designed to compress the clamping arm 606 mounted on its side, ensuring that the clamping arm 606 can clamp and fix the sampling cylinder 10 on its inner side. The infrared horizontal detection module 6021 can detect the angle of the sampling cylinder 10, ensuring that the sampling operation will only be performed when the sampling cylinder 10 is in a relatively vertical state.

[0084] In the coal mine underground environmental monitoring equipment of the present invention, when installing the sampling cylinder 10, the outside of the sampling cylinder 10 is first placed inside the clamping arm 606, and the bottom of the sampling cylinder 10 is placed inside the positioning hole 603, thus completing the support and positioning operation of the sampling cylinder 10.

[0085] For details, please refer to the following: Figure 8 and Figure 10 The sealing gripping assembly 70 includes a frame body 701, which is installed at the bottom of the plunger assembly 80 and located on the side of the L-shaped bracket 602. A gripping motor 702 is installed on one side inside the frame body 701. The output end of the gripping motor 702 is connected to a horizontal threaded rod 703, which extends into the interior of the frame body 701. There are two horizontal threaded rods 703 connected together and rotatably connected inside the frame body 701. A horizontal threaded block 704 is threaded to the outside of the horizontal threaded rod 703 and slidably connected inside the frame body 701. A lower gripping arm 705 is installed at the bottom of the horizontal threaded block 704.

[0086] In this design, an upper sealing plug 7051 is clamped and fixed between the two lower gripping arms 705. The upper sealing plug 7051 extends into the opening at the top of the sampling cylinder 10. Another waterproof ring 104 is installed on the outer side of the bottom of the upper sealing plug 7051.

[0087] In the underground environmental monitoring equipment of the present invention, the upper sealing plug 7051 can seal the opening at the top of the sampling cylinder 10. Before sampling groundwater, the gripping motor 702 is first started to operate, driving the two horizontal threaded rods 703 connected to the output end of the gripping motor 702 to rotate, and causing the two horizontal threaded blocks 704 threaded to the outer side of the horizontal threaded rods 703 to move (in opposite directions). When the horizontal threaded blocks 704 move, they clamp and fix the upper sealing plug 7051 set on their inner side, which facilitates the opening or closing of the sampling cylinder 10 through the upper sealing plug 7051.

[0088] For details, please refer to the following: Figure 8 , Figure 9 and Figure 11The plunger assembly 80 includes an upper support plate 801, which is welded to the side of the L-shaped bracket 602. There are two upper support plates 801, with the top upper support plate 801 supporting a telescopic electric cylinder 802. A connecting plate 803 is connected to the output end of the telescopic electric cylinder 802. The connecting plate 803 is movably disposed between the two upper support plates 801. A lifting link 804 is rotatably connected to the bottom of the connecting plate 803. The lifting link 804 passes through the bottom upper support plate 801. A positioning frame 8041 is installed at the bottom of the lifting link 804, and a positioning frame body 701 is installed on the inner side of the positioning frame 8041.

[0089] In the underground environmental monitoring equipment of the present invention, when sampling groundwater, the telescopic electric cylinder 802 is activated to drive the connecting plate 803 and the lifting rod 804 connected to the output end of the telescopic electric cylinder 802 to move up and down, and the positioning frame 8041 and the upper sealing plug 7051 connected to the bottom of the lifting rod 804 to move up and down, opening or closing the opening of the sampling tube 10.

[0090] Example 2

[0091] Based on the above embodiments, it was found during use that when the water resources inside the sampling cylinder 10 are sealed by squeezing, the squeezing force is transmitted to the inner wall of the sampling cylinder 10, and the sampling cylinder 10 for water resource sampling is prone to bursting due to squeezing force and water pressure.

[0092] For details, please refer to the following: Figure 4 An elastic pad 101 is installed at the bottom of the sampling cylinder 10. A support spring 102 is connected to the top of the elastic pad 101. A sealing plug 103 is connected to the top of the support spring 102. The sealing plug 103 is located inside the sampling cylinder 10. A waterproof ring 104 is installed on the outer side of the bottom of the sealing plug 103. The waterproof ring 104 is in contact with the inner wall of the sampling cylinder 10.

[0093] In the underground environmental monitoring equipment of the present invention, when the upper sealing plug 7051 squeezes the water resources inside the sampling cylinder 10, the squeezing force of the water resources will squeeze the sealing bottom plug 103 inside the sampling cylinder 10, and drive the support spring 102 at the bottom of the sealing bottom plug 103 to compress, thereby reducing the degree of damage to the sampling cylinder 10 during water sampling. Furthermore, in subsequent sampling, the sampled groundwater needs to undergo secondary or even multiple treatments, and there will still be sufficient water resources inside the sampling cylinder 10.

[0094] Example 3

[0095] Based on the above embodiments, it was found during use that when sealing the opening at the top of the sampling cylinder 10 by the lifting and lowering movement of the upper sealing plug 7051, the water pressure and squeezing force caused instability in sealing the sampling cylinder 10 by moving the upper sealing plug 7051. At the same time, impurities in the groundwater easily adhered between the upper sealing plug 7051 and the inner wall of the sampling cylinder 10, resulting in poor sealing between the sampling cylinder 10 and the upper sealing plug 7051, and the sampled groundwater resources were prone to leakage.

[0096] For details, please refer to the following: Figure 9 and Figure 11 A side groove 805 is formed on one side of the lifting link 804. The lifting link 804 is movably connected to a first gear 806 through the side groove 805. The first gear 806 is rotatably connected to the bottom of the upper support plate 801. A second gear 807 is meshed with the side of the first gear 806 and is rotatably connected to the bottom of the upper support plate 801. The second gear 807 is connected to the output end of the servo motor 808, which is mounted on the top of the bottom upper support plate 801.

[0097] In the underground environmental monitoring equipment of the present invention, when the telescopic electric cylinder 802 drives the lifting connecting rod 804 and the upper sealing plug 7051 to move up and down, the lifting connecting rod 804, which moves up and down, can be driven by the servo motor 808 to rotate the output end second gear 807. This rotation drives the first gear 806, which is meshed with the side of the second gear 807, and the lifting connecting rod 804, which is connected to the inner side of the first gear 806 through the side groove 805, to rotate. By operating the rotation and lifting movements synchronously, the opening at the top of the sampling cylinder 10 is sealed. At the same time, when there are impurities on the inner wall of the upper sealing plug 7051 and the sampling cylinder 10, the rotational force can cause the impurities to be pressed down and crushed, and the impurities will not affect the sealing effect of the upper sealing plug 7051 and the sampling cylinder 10.

[0098] In addition, the infrared horizontal detection module 6021 in this invention is waterproof, and the gripping motor 702, telescopic electric cylinder 802 and servo motor 808 are all housed in a waterproof container.

[0099] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. A coal mine underground environmental monitoring device, comprising a sampling cylinder (10) and a support base (20), characterized in that: The support base (20) is installed on the left and right sides of the lateral expansion component (30). A rope lifting component (40) is installed on the side of the lateral expansion component (30). An integrated sampling mechanism (50) extending into the groundwater environment is installed at the bottom of the rope lifting component (40). A sampling tube (10) is supported and positioned on the inner side of the integrated sampling mechanism (50). The integrated sampling mechanism (50) includes: A support clamping assembly (60) is installed at the bottom of the rope lifting assembly (40). A sampling cylinder (10) is supported and positioned on the inner side of the support clamping assembly (60). A sealing gripping assembly (70) is provided on the side of the support clamping assembly (60). The sealing gripping assembly (70) is positioned above the sampling cylinder (10). The support clamping assembly (60) includes: an L-shaped bracket (602). A plunger assembly (80) is mounted on top of the sealing gripping assembly (70), the plunger assembly (80) is mounted on the side of the support clamping assembly (60), and the plunger assembly (80) is disposed on the side of the rope lifting assembly (40). The sealing gripping assembly (70) includes: A frame body (701) is mounted on the bottom of the plunger assembly (80). The frame body (701) is disposed on the side of the L-shaped bracket (602). A gripping motor (702) is mounted on one side inside the frame body (701). The output end of the gripping motor (702) is connected to a horizontal threaded rod (703), which extends into the interior of the frame body (701). There are two horizontal threaded rods (703), which are connected to each other and are rotatably connected inside the frame body (701). A horizontal threaded block (704) is threaded to the outside of the horizontal threaded rod (703), and the horizontal threaded block (704) is slidably connected to the inside of the frame body (701). A lower gripping arm (705) is installed at the bottom of the horizontal threaded block (704). The plunger assembly (80) includes: Upper support plate (801) is welded to the side of L-shaped bracket (602). There are two upper support plates (801), and the top upper support plate (801) supports a telescopic electric cylinder (802). A connecting plate (803) is connected to the output end of the telescopic electric cylinder (802). The connecting plate (803) is movably disposed between two upper support plates (801). A lifting connecting rod (804) is rotatably connected to the bottom of the connecting plate (803). The lifting connecting rod (804) passes through the bottom upper support plate (801). The bottom of the lifting link (804) is equipped with a positioning frame (8041), and the frame body (701) is installed and positioned on the inner side of the positioning frame (8041). Side groove (805), the side groove (805) is opened on one side of the lifting link (804), the lifting link (804) is movably connected to the first gear (806) through the side groove (805) opened on the outside, and the first gear (806) is rotatably connected to the bottom of the upper support plate (801); The second gear (807) is meshed with the side of the first gear (806) and rotatably connected to the bottom of the upper support plate (801). The second gear (807) is connected to the output end of the servo motor (808), which is mounted on the top of the bottom upper support plate (801).

2. The coal mine underground environmental monitoring equipment according to claim 1, characterized in that: An elastic pad (101) is installed at the bottom of the sampling cylinder (10), a support spring (102) is connected to the top of the elastic pad (101), and a sealing plug (103) is connected to the top of the support spring (102). The sealing plug (103) is located inside the sampling cylinder (10), and a waterproof ring (104) is installed on the outer side of the bottom of the sealing plug (103). The waterproof ring (104) is in contact with the inner wall of the sampling cylinder (10).

3. The underground environmental monitoring equipment for coal mines according to claim 1, characterized in that: The lateral expansion component (30) includes: An intermediate support (301) has two side blocks (302) mounted on one side. A linear motor (303) is mounted on the side of each side block (302). The output end of the linear motor (303) is connected to a spindle (304), which is rotatably connected to the side of the intermediate support (301). The main shaft (304) is movably disposed on the side of the intermediate support (301); A transmission belt (305) is connected to the outside of the main shaft (304) via a synchronous pulley key provided on the inner side. The transmission belt (305) extends to the inside of the intermediate support (301). An intermediate shaft (306) is also connected to the inner side of the transmission belt (305) via a synchronous pulley key. The intermediate shaft (306) is rotatably connected to the inside of the intermediate support (301). Two transverse threaded rods (307) are provided. Both transverse threaded rods (307) are rotatably connected inside the intermediate bracket (301). The two transverse threaded rods (307) are respectively installed on the left and right sides of the intermediate shaft (306). The thread directions of the two transverse threaded rods (307) are opposite.

4. The underground environmental monitoring equipment for coal mines according to claim 3, characterized in that: An expansion arm (3071) is threadedly connected to the outer side of the transverse threaded rod (307). The expansion arm (3071) is slidably connected to the inside of the intermediate support (301) and extends to the outside of the intermediate support (301). The expansion arm (3071) has a transverse threaded rod (307) extending to the outside inside. A vertical arm (3072) is fixed to the inside of the expansion arm (3071) by screws. A support seat (20) is fixed to the inside of the vertical arm (3072) by screws.

5. The underground environmental monitoring equipment for coal mines according to claim 3, characterized in that: The rope lifting assembly (40) includes: Side support (401), which is welded to the other side of the intermediate support (301), with a unwinding roller (402) positioned on the top of the side support (401), and a connecting rope (403) wound around the outside of the unwinding roller (402). Among them, a winding and unwinding motor (4011) is installed on one side of the side support (401), and the output end of the winding and unwinding motor (4011) is connected to the unwinding roller (402). A support clamping assembly (60) is installed and fixed at the bottom of the connecting rope (403).

6. The coal mine underground environmental monitoring equipment according to claim 5, characterized in that: The support clamping assembly (60) further includes: The positioning block (601) has the connecting rope (403) installed on its top, and the L-shaped bracket (602) is fixed to the side of the positioning block (601) by screws. The L-shaped bracket (602) has a positioning hole (603) at its inner bottom. The sampling cylinder (10) is supported and positioned on the inner side of the positioning hole (603). A sliding part (604) is provided inside the L-shaped bracket (602). Two sliding blocks (605) are slidably connected inside the sliding part (604). A clamping arm (606) is installed on the side of the sliding block (605). A sampling cylinder (10) is clamped and fixed between the two clamping arms (606).

7. The underground environmental monitoring equipment for coal mines according to claim 6, characterized in that: A side compression spring (607) is mounted on the side of the sliding block (605), and the bottom of the side compression spring (607) is mounted inside the sliding part (604). The L-shaped bracket (602) is equipped with infrared horizontal detection modules (6021) on its left and right sides, and the infrared horizontal detection modules (6021) are located above the clamping arm (606).

8. The underground environmental monitoring equipment for coal mines according to claim 1, characterized in that: An upper sealing plug (7051) is clamped and fixed between the two lower gripping arms (705), the upper sealing plug (7051) extending into the opening at the top of the sampling cylinder (10). The upper sealing plug (7051) has another waterproof ring (104) installed on the outer side of its bottom.

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