Automatic sampling device for coal mine underground water detection

Abstract

The invention relates to the technical field of underground water detection, and discloses an automatic sampling device for coal mine underground water detection, the automatic sampling device comprises a base, a reel pipe disc and an air extracting pump, the reel pipe disc is externally wound with a communicating water pipe, and one end of the communicating water pipe is provided with an underwater probing mechanism; and the other end of the communicating water pipe is fixedly connected to the interior of the pipe coiling disc. The pipe coiling disc is used for coiling a communicating water pipe, a sampling mechanism is arranged at the top of the base, a mounting mechanism is arranged in the middle of the base, a collection and storage mechanism is arranged on the inner side of the mounting mechanism, and the sampling mechanism is used for being matched with the collection and storage mechanism to extract a water sample. By arranging the rotating filter cartridge capable of rotating along with water flow, the rotating filter cartridge is driven to rotate through flowing of the water flow during water sample extraction, and impurities on the outer side and the bottom of the rotating filter cartridge are scraped, so that manual cleaning in a hole or re-recovery and cleaning of a probe are not needed, and the sampling efficiency is improved while the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of groundwater detection technology, specifically to an automated sampling device for groundwater detection in coal mines. Background Technology

[0002] The automated sampling device for groundwater detection in coal mines mainly consists of a portable sealed protective box, an air pump, a sample storage chamber, a columnar stainless steel sampling probe, and a reel support for winding the sampling pipe. The entire device uses the sampling pipe stored on the reel to draw gas from the sample storage chamber through the air pump, which reduces the air pressure inside the chamber and generates suction. The suction is then transmitted to the probe through the sampling pipe, where water samples are extracted. At the same time, the filter screen on the probe filters impurities from the groundwater in the coal mine to prevent the probe from clogging, making it suitable for complex working conditions in underground coal mines.

[0003] Although the probes of automated sampling devices used for groundwater detection in coal mines in the existing technology have filters, the filters are generally fixed and easily clogged by coal slag and colloidal particles in the groundwater. This requires manual cleaning inside the mine or retrieving the probe for cleaning, which not only increases maintenance costs but also reduces sampling efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automated sampling device for groundwater detection in coal mines. This device solves the problem that the probe filters in existing automated sampling devices for groundwater detection in coal mines are generally fixed and easily clogged by coal slag and colloidal particles in the groundwater, increasing maintenance costs while reducing sampling efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automated sampling device for groundwater detection in coal mines, comprising a base, a tubing reel, and an air pump. A connecting water pipe is wound around the outside of the tubing reel. One end of the connecting water pipe is equipped with an underwater probe, and the other end of the connecting water pipe is fixedly connected to the inside of the tubing reel. The tubing reel is used to wind up the connecting water pipe. A sampling mechanism is located at the top of the base, and an installation mechanism is located in the middle of the base. A collection and storage mechanism is located inside the installation mechanism. The sampling mechanism is used to cooperate with the collection and storage mechanism to extract water samples. The installation mechanism is used to replace different collection and storage mechanisms. A main air extraction pipe is fixedly connected to the top of the air pump's input end, and a branch air extraction pipe is fixedly connected to the side of the air pump's input end. A water sample inlet groove is opened inside the tubing reel, and a connecting water pipe is rotatably connected to one end of the tubing reel.

[0006] Preferably, the underwater probe mechanism includes a probe rod, the top of which is fixedly connected to one end of the communicating water pipe, a mounting cylinder fixedly connected to the bottom of the probe rod, an impeller rotatably connected inside the mounting cylinder, a rotating shaft fixedly connected to the bottom of the impeller, a fixed cylinder fixedly connected to the bottom of the mounting cylinder, a rotating filter cylinder rotatably connected inside the bottom end of the fixed cylinder, the bottom of the rotating shaft fixedly connected to the bottom end of the rotating filter cylinder, a suction pipe one fixedly connected between the bottom of the probe rod and the middle of the mounting cylinder, a suction pipe two fixedly connected between the outside of the fixed cylinder and the outside of the mounting cylinder, a mounting column fixedly connected to the outside of the fixed cylinder, a rotating sleeve rotatably connected to the outside of the mounting column, a torsion spring provided inside the rotating sleeve, a side scraper fixedly connected to the outside of the rotating sleeve, a limit plate slidably connected inside the bottom end of the mounting column, a bottom scraper fixedly connected to the bottom of the limit plate, and a push spring sleeved on the outside of the bottom scraper.

[0007] Preferably, the sampling mechanism includes a fixed column, which is fixedly connected to the top of the base. Movable sleeves are slidably connected to both ends of the fixed column. Connecting rods are rotatably connected to the outside of each movable sleeve. A connecting plate is rotatably connected between the two connecting rods. An installation air cylinder is fixedly connected to the middle of the fixed column. A tension spring is installed inside the installation air cylinder. A limiting slide plate is slidably connected inside the installation air cylinder. A movable rod is fixedly connected to the end of the limiting slide plate away from the tension spring. The end of the movable rod away from the limiting slide plate is fixedly connected to the outside of the connecting plate. An exhaust valve is fixedly connected to the outside of the installation air cylinder. A water inlet cap is fixedly connected to the bottom of the lower movable sleeve. An air extraction cap is fixedly connected to the top of the upper movable sleeve. An air extraction hole is opened in the middle of the air extraction cap. A fixed support rod is fixedly connected to the middle of the fixed column. An air baffle block is fixedly connected to the top of the fixed support rod. The air baffle block is slidably connected to the inside of the air extraction cap. One end of the tension spring is fixedly connected to the inside of the mounting air cylinder. The other end of the tension spring is fixedly connected to the end of the limiting slide away from the movable rod. The end of the main air extraction pipe away from the air extraction pump is fixedly connected to the outside of the air extraction cap. The end of the branch air extraction pipe away from the air extraction pump is fixedly connected to the outside of the mounting air cylinder. The end of the connecting water pipe away from the hose reel is fixedly connected to the bottom of the water inlet cap.

[0008] Preferably, the mounting mechanism includes a motor, the bottom of which is fixedly connected to the inner bottom of the base. A rotating column is fixedly connected to the output end of the motor. A hexagonal column is fixedly connected to the top of the rotating column. A limiting circular plate is fixedly connected to the top of the hexagonal column. A sliding sleeve column is slidably connected to the outside of the hexagonal column. A retaining spring is provided inside the sliding sleeve column. Multiple top sleeves are fixedly connected to the outer top of the sliding sleeve column. Multiple bottom sleeves are fixedly connected to the outer top of the rotating column. The limiting circular plate is slidably connected inside the sliding sleeve column.

[0009] Preferably, the collection and storage mechanism includes multiple sampling bottles, which are respectively disposed between multiple top sleeves and multiple bottom sleeves. A bracket is fixedly connected inside each sampling bottle, a stabilizing column is fixedly connected to the top of the bracket, a float is slidably connected to the outside of the stabilizing column, a blocking ring is fixedly connected to the top of the sampling bottle, an air suction cylinder is threadedly connected to the top of the sampling bottle, a pushing spring is provided inside the air suction cylinder, an air baffle ring is slidably connected inside the air suction cylinder, multiple vent holes are opened at the bottom of the air suction cylinder, and a water suction cylinder is fixedly connected to the bottom of the sampling bottle.

[0010] Preferably, one end of the torsion spring is fixedly connected to the outside of the mounting post, and the other end of the torsion spring is fixedly connected to the inside of the rotating sleeve.

[0011] Preferably, one end of the push spring is fixedly connected to the bottom of the limiting plate, and the other end of the push spring is fixedly connected to the inner bottom end of the mounting column.

[0012] Preferably, one end of the clamping spring is fixedly connected to the bottom of the limiting circular plate, and the other end of the clamping spring is fixedly connected to the inner bottom end of the sliding sleeve column.

[0013] Preferably, the clamping spring is sleeved on the outside of the hexagonal column, and the outer bottom end of the rotating column is rotatably connected to the top end of the base.

[0014] Preferably, one end of the push spring is fixedly connected to the top of the inside of the suction cylinder, and the other end of the push spring is fixedly connected to the top of the air baffle ring.

[0015] This invention provides an automated sampling device for groundwater detection in coal mines. It has the following advantages: 1. This invention features a rotating filter cylinder that follows the water flow. When a water sample is drawn, the water flow drives the rotating filter cylinder to rotate. In conjunction with side and bottom scrapers, impurities on the outside and bottom of the rotating filter cylinder are scraped off. This prevents coal slag and colloidal particles from clogging the outside of the rotating filter cylinder in coal mine groundwater. Therefore, it eliminates the need for manual cleaning inside the mine or retracting the probe for cleaning, reducing maintenance costs while improving sampling efficiency.

[0016] 2. The present invention, through the sampling mechanism and the installation mechanism, can automatically switch to an empty sampling bottle after a sampling bottle is filled with water sample, so as to realize the sealed storage of multiple batches of water samples in a continuous manner. Water samples from different time periods are stored independently without cross-contamination, which greatly improves the sampling efficiency and the representativeness of water samples. Attached Figure Description

[0017] Figure 1 The three-dimensional representation of the present invention Figure 1 ; Figure 2 The three-dimensional representation of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the underwater probe mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the mounting cylinder of the present invention; Figure 5 This is a schematic diagram of the internal structure of the rotating sleeve of the present invention; Figure 6 This is a schematic diagram of the internal structure of the mounting column of the present invention; Figure 7 This is a schematic diagram of the water sample inlet tank of the present invention; Figure 8 This is a schematic diagram of the connecting plate of the present invention; Figure 9 This is a schematic diagram of the internal structure of the air cylinder installed in this invention; Figure 10 This is a schematic diagram of the internal structure of the air extraction cap of the present invention; Figure 11 A schematic diagram of the internal structure of the sliding sleeve column; Figure 12 This is a schematic diagram of the internal structure of the sampling bottle of the present invention.

[0018] The components are as follows: 1. Base; 2. Tube reel; 3. Connecting water pipe; 4. Underwater probe mechanism; 401. Probe rod; 402. Mounting cylinder; 403. Impeller; 404. Rotating shaft; 405. Fixed cylinder; 406. Rotating filter cylinder; 407. Suction pipe one; 408. Suction pipe two; 409. Mounting column; 410. Rotating sleeve; 411. Torsion spring; 412. Side scraper; 413. Limiting plate; 414. Bottom scraper; 415. Push spring; 5. Sampling mechanism; 501. Fixed column; 502. Moving sleeve; 503. Connecting rod; 504. Connecting plate; 505. Mounting air cylinder; 506. Tension spring; 507. Limiting slide plate; 508. Movable rod; 509. Exhaust valve; 510. 511. Water inlet cap; 512. Air extraction cap; 513. Air extraction port; 514. Fixed support rod; 515. Air baffle block; 6. Installation mechanism; 601. Motor; 602. Rotating column; 603. Hexagonal column; 604. Limiting circular plate; 605. Sliding sleeve column; 606. Pressing spring; 607. Top sleeve; 608. Bottom sleeve; 7. Collection and storage mechanism; 701. Sampling bottle; 702. Support; 703. Stabilizing column; 704. Float; 705. Blocking ring; 706. Air extraction cylinder; 707. Pushing spring; 708. Air baffle ring; 709. Vent hole; 710. Water extraction cylinder; 8. Air extraction pump; 9. Main air extraction pipe; 10. Branch air extraction pipe; 11. Water sample inlet tank; 12. Connecting water pipe. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see the appendix Figure 1 -Appendix Figure 12 This invention provides an automated sampling device for groundwater detection in coal mines, comprising a base 1, a reel 2, and an air pump 8. A connecting water pipe 3 is wound around the outside of the reel 2. One end of the connecting water pipe 3 is equipped with an underwater probe 4, and the other end of the connecting water pipe 3 is fixedly connected to the inside of the reel 2. The reel 2 is used to wind up the connecting water pipe 3. A sampling mechanism 5 is provided at the top of the base 1, and an installation mechanism 6 is provided in the middle of the base 1. A collection and storage mechanism 7 is provided inside the installation mechanism 6. The sampling mechanism 5 is used to cooperate with the collection and storage mechanism 7 to extract water samples. The installation mechanism 6 is used to replace different collection and storage mechanisms 7. A main suction pipe 9 is fixedly connected to the top of the input end of the air pump 8, and a suction branch pipe 10 is fixedly connected to the side of the input end of the air pump 8. A water sample inlet groove 11 is opened inside the reel 2, and a connecting water pipe 12 is rotatably connected to one end of the reel 2.

[0021] The underwater probe mechanism 4 includes a probe rod 401. The top of the probe rod 401 is fixedly connected to one end of the water pipe 3. The bottom of the probe rod 401 is fixedly connected to a mounting cylinder 402, which provides an installation position. An impeller 403 is rotatably connected inside the mounting cylinder 402. The impeller 403 can rotate with the water flow. A rotating shaft 404 is fixedly connected to the bottom of the impeller 403. A fixing cylinder 405 is fixedly connected to the bottom of the mounting cylinder 402, which provides an installation position. A rotating filter cylinder 406 is rotatably connected inside the bottom end of the fixing cylinder 405. The rotating shaft 404 can rotate with the impeller 403, thereby driving the rotating filter cylinder 406 to rotate. The bottom of the rotating shaft 404 is fixedly connected to the inside of the rotating filter cylinder 406. At the bottom end of the device, a suction pipe 407 is fixedly connected between the bottom of the probe 401 and the middle of the mounting cylinder 402. A suction pipe 408 is fixedly connected between the outside of the fixed cylinder 405 and the outside of the mounting cylinder 402. Both suction pipes 407 and 408 serve to communicate with each other. A mounting post 409 is fixedly connected to the outside of the fixed cylinder 405, providing the mounting position. A rotating sleeve 410 is rotatably connected to the outside of the mounting post 409. A torsion spring 411 is installed inside the rotating sleeve 410. A side scraper 412 is fixedly connected to the outside of the rotating sleeve 410. The torsion spring 411 can use its own reaction force to give the rotating sleeve 410 a rotational force, thereby giving the side scraper 412 a rotational force, which in turn enables... The side scraper 412 can fit tightly against the outside of the rotating filter cartridge 406. A limiting plate 413 is slidably connected inside the bottom end of the mounting column 409. The limiting plate 413 has a limiting force. A bottom scraper 414 is fixedly connected to the bottom of the limiting plate 413. A push spring 415 is sleeved on the outside of the bottom scraper 414. The push spring 415 can exert an upward force on the limiting plate 413 and transmit the force to the bottom scraper 414, allowing the bottom scraper 414 to fit tightly against the bottom of the rotating filter cartridge 406. One end of the push spring 415 is fixedly connected to the bottom of the limiting plate 413, and the other end is fixedly connected to the bottom end of the mounting column 409. When suction is transmitted from inside the water pipe 3, it can be transmitted through the probe 401. The water is transferred through suction pipe 407 to the interior of mounting cylinder 402, and then through suction pipe 408 to the interior of rotating shaft 404. This allows the rotating filter cylinder 406 to filter groundwater in the coal mine. Simultaneously, under the influence of suction, the water flows through suction pipe 408 into mounting cylinder 402. This water flow drives impeller 403 to rotate, which in turn drives rotating shaft 404, which in turn drives rotating filter cylinder 406. After the impeller 403 rotates, the water flows through suction pipe 407 into probe rod 401 and then into connecting water pipe 3. When rotating filter cylinder 406, the side scraper 412 provides a reaction force to rotating sleeve 410.The rotating sleeve 410 transmits the reaction force to the side scraper 412, which in turn exerts a force on the side scraper 412 towards the rotating filter cylinder 406. This allows the side scraper 412 to adhere tightly to the outer side of the rotating filter cylinder 406, scraping off impurities as the filter cylinder 406 rotates. Simultaneously, the pushing spring 415 applies an upward force to the limiting plate 413, which is transmitted to the bottom scraper 414. This ensures the bottom scraper 414 adheres tightly to the bottom of the rotating filter cylinder 406, scraping off impurities as the filter cylinder 406 rotates, thus preventing clogging.

[0022] The sampling mechanism 5 includes a fixed column 501, which provides an installation position. The fixed column 501 is fixedly connected to the top of the base 1. Movable sleeves 502 are slidably connected to both ends of the fixed column 501. A connecting rod 503 is rotatably connected to the outside of each movable sleeve 502. A connecting plate 504 is rotatably connected between the two connecting rods 503. Movement of the connecting plate 504 away from the fixed column 501 can drive the two movable sleeves 502 towards the center via the connecting rods 503. An installation cylinder 505 is fixedly connected to the middle of the fixed column 501, providing an installation position. An internal tension spring 506 is installed in the cylinder 505. A limiting slide plate 507 is slidably connected inside the cylinder 505. A movable rod 508 is fixedly connected to the end of the limiting slide plate 507 away from the tension spring 506. When the internal air pressure of the cylinder 505 is balanced with the external air pressure, the reaction force of the tension spring 506 can push the limiting slide plate 507 and the movable rod 508 to move away from the fixed post 501. This, in turn, can drive the connecting plate 504 to move away from the fixed post 501. The end of the movable rod 508 away from the limiting slide plate 507 is fixedly connected to the connecting plate 504. Externally, an exhaust valve 509 is fixedly connected to the air cylinder 505. When the exhaust valve 509 is opened, it can draw in external air, thus balancing the internal air pressure of the air cylinder 505 with the external air pressure. A water inlet cap 510 is fixedly connected to the bottom of the lower movable sleeve 502, and a suction cap 511 is fixedly connected to the top of the upper movable sleeve 502. A suction hole 512 is provided in the middle of the suction cap 511. A fixed support rod 513 is fixedly connected to the middle of the fixed column 501, and an air baffle block 514 is fixedly connected to the top of the fixed support rod 513. The fixed support rod 513 can... The air baffle 514 is installed and can be kept stable. The air baffle 514 is slidably connected inside the air suction cap 511. One end of the tension spring 506 is fixedly connected inside the air cylinder 505, and the other end of the tension spring 506 is fixedly connected to the end of the limiting slide plate 507 away from the movable rod 508. The end of the main suction pipe 9 away from the suction pump 8 is fixedly connected to the outside of the air suction cap 511. The end of the suction branch pipe 10 away from the suction pump 8 is fixedly connected to the outside of the air cylinder 505. The end of the connecting water pipe 12 away from the hose reel 2 is fixedly connected to the bottom of the water inlet cap 510.

[0023] The mounting mechanism 6 includes a motor 601, the bottom of which is fixedly connected to the bottom of the base 1. A rotating column 602 is fixedly connected to the output end of the motor 601, providing power for the rotation of the rotating column 602. A hexagonal column 603 is fixedly connected to the top of the rotating column 602, and a limiting circular plate 604 is fixedly connected to the top of the hexagonal column 603, which has a limiting function. A sliding sleeve column 605 is slidably connected to the outside of the hexagonal column 603, and a retaining mechanism is provided inside the sliding sleeve column 605. Spring 606, when pressed, provides a downward force to sliding sleeve 605. Multiple top sleeves 607 are fixedly connected to the outer top of sliding sleeve 605, and multiple bottom sleeves 608 are fixedly connected to the outer top of rotating column 602. When sliding sleeve 605 receives a downward force, it transmits the force to the top sleeves 607, thus enabling the acquisition and storage mechanism 7 to be installed between the top sleeves 607 and bottom sleeves 608 in conjunction with the bottom sleeves 608. The limiting circular plate 604 is slidably connected inside sliding sleeve 605, providing a pressing force. Spring 606 is sleeved on the outside of hexagonal column 603. The bottom end of rotating column 602 is rotatably connected to the inside of the top of base 1. After the suction cap 511 and water inlet cap 510 leave the top and bottom of the collection and storage mechanism 7, motor 601 is started. The output end of motor 601 rotates, driving rotating column 602 to rotate, which in turn drives hexagonal column 603 to rotate. Through hexagonal column 603, sliding sleeve column 605 rotates, thus driving top sleeve 607 and bottom sleeve 608 to rotate, thereby driving... The sampling and storage mechanism 7 can be rotated so that the sampling and storage mechanism 7 filled with samples can be easily moved away. The empty sampling and storage mechanism 7 can be moved between the air extraction cap 511 and the water inlet cap 510. When the sampling and storage mechanism 7 filled with water is taken out, the air extraction cap 511 and the water inlet cap 510 are first opened up and down respectively, and the sliding sleeve 605 is pulled up, so that the distance between the top sleeve 607 and the bottom sleeve 608 can be increased. Therefore, the sampling and storage mechanism 7 filled with water sample can be removed from the mounting mechanism 6.

[0024] The sampling and storage mechanism 7 includes multiple sampling bottles 701, which provide space for sample storage. The multiple sampling bottles 701 are respectively disposed between multiple top sleeves 607 and multiple bottom sleeves 608. A bracket 702 is fixedly connected inside each sampling bottle 701, providing an installation position. A stabilizing column 703 is fixedly connected to the top of the bracket 702, and a float 704 is slidably connected to the outside of the stabilizing column 703. The stabilizing column 703 can limit the movement trajectory of the float 704. A blocking ring 705 is fixedly connected to the top of the inside of each sampling bottle 701, and the float 704 can block the bottom of the blocking ring 705, thereby maintaining the stability of the sampling bottle 701. The internal sealing is achieved by threading a vacuum pump 706 to the top of the sampling bottle 701, providing an installation position. A push spring 707 is installed inside the vacuum pump 706, and a baffle ring 708 is slidably connected inside the vacuum pump 706. Multiple vent holes 709 are provided at the bottom of the vacuum pump 706. The push spring 707 can push the baffle ring 708 downward to block the vent holes 709. A water pump 710 is fixedly connected to the bottom of the sampling bottle 701. One end of the push spring 707 is fixedly connected to the top of the vacuum pump 706, and the other end of the push spring 707 is fixedly connected to the top of the baffle ring 708. When the suction cap 511 is placed on top of the suction cylinder 706 and the water inlet cap 510 is placed on bottom of the water inlet cylinder 710, the suction pump 8 is started. The input end of the suction pump 8 generates suction. Since the suction branch pipe 10 is connected to the mounting cylinder 505, and the mounting cylinder 505 has a tension spring 506 inside, suction through the suction branch pipe 10 needs to overcome the elastic force of the tension spring 506. The main suction pipe 9 is connected to the suction cap 511. Since the suction cap 511 does not have a spring inside, and the elastic force of the push spring 707 is less than that of the tension spring 506, suction... After the air pump 8 generates suction, the suction force first enters the interior of the suction cap 511 through the main suction pipe 9, which then pulls the air baffle 708 upward. At this time, the vent 709 is not blocked by the air baffle 708, allowing the gas inside the sampling bottle 701 to be drawn away. Therefore, suction force is generated inside the sampling bottle 701, which is then transmitted to the water inlet cap 510 and the connecting water pipe 12 through the water pump 710, allowing the suction force to be transmitted to the interior of the water sample inlet 11, and then to the interior of the connecting water pipe 3. At this point, the underwater probe 4 can be used. When groundwater from the coal mine is drawn into the sampling bottle 701, the float 704 rises as the liquid level inside the bottle increases. Once the float 704 reaches the bottom of the blocking ring 705, it blocks the ring, preventing the air pump 8 from drawing out the gas from the sampling bottle 701. When there is no gas flow inside the suction cylinder 706, the reaction force of the push spring 707 pushes the air-blocking ring 708 downwards, blocking it at the vent 709. The air baffle ring 708 can then block the inside of the vent 709, preventing gas from flowing into the sampling bottle 701 and maintaining a low air pressure inside the sampling bottle 701. At this time, the air pressure inside the sampling bottle 701 is low and it is already filled with liquid, so the liquid will not flow out from the inside of the sampling bottle 701. When taking out the water sample, the suction cylinder 706 is unscrewed from the top of the sampling bottle 701. At this time, the air pressure inside the sampling bottle 701 can be balanced with the outside, and the water can flow out from the inside of the sampling bottle 701 through the water suction cylinder 710. When the sampling bottle 701 is filled with water, and the gas inside the sampling bottle 701 cannot be sucked out, the main suction pipe 9 is also blocked. At this time, the suction force enters the installation cylinder 505 through the suction branch pipe 10, thereby sucking out the gas in the installation cylinder 505. At this time, the limiting slide plate 507 will move towards the fixed post 501, and the limiting slide plate 507 will compress the tension spring 506, thereby driving the movable rod 508 to move towards the fixed post 501. The movable rod 508 can then drive the connecting plate 504 to move towards the fixed post 501, thereby allowing one end of the connecting rod 503 to move towards the fixed post 501. The movement causes the upper connecting rod 503 to move upwards, while the lower connecting rod 503 moves downwards. This, in turn, causes the upper and lower moving sleeves 502 to move up and down respectively, which in turn causes the suction cap 511 to move upwards and the water inlet cap 510 to move downwards. At this time, the water inlet cap 510 moves away from below the water pump 710, and the suction cap 511 moves away from above the suction pump 706. Meanwhile, the suction hole 512 on the suction cap 511 is blocked by the air block 514. Therefore, the main suction pipe 9 remains blocked, preventing it from drawing in gas. As a result, suction is still generated in the suction branch pipe 10. The system maintains the movable rod 508 inside the installation cylinder 505, and keeps the suction cap 511 and water inlet cap 510 open. The sampling bottle 701, without water sample, is then moved between the suction cap 511 and water inlet cap 510 using the installation mechanism 6. The suction pump 8 is then turned off and the exhaust valve 509 is opened, allowing gas to enter the installation cylinder 505. The internal air pressure of the installation cylinder 505 is then balanced with the external pressure. At this point, the tension spring 506 pushes the limiting slide plate 507 away from the fixed post 501, which in turn pushes the movable rod 508 away from the fixed post 501. When the connecting plate 504 is moved away from the fixed column 501, the connecting rod 503 pulls the two moving sleeves 502 towards the center, which in turn moves the suction cap 511 downward and the water inlet cap 510 upward. The suction cap 511 covers the top of the suction cylinder 706, and the water inlet cap 510 covers the bottom of the suction cylinder 710. At the same time, when the suction cap 511 moves downward, the suction hole 512 also moves downward. Therefore, the air blocking block 514 will not block the suction hole 512, so the gas inside the sampling bottle 701 can be extracted for the next round of water sampling.

[0025] Working principle: When suction is transmitted from inside the connecting water pipe 3, it is transmitted to the probe 401 and then to the mounting cylinder 402 through the suction pipe 407. From there, the suction is transmitted to the rotating shaft 404 through the suction pipe 408. This allows the rotating filter cylinder 406 to filter the groundwater in the coal mine. Simultaneously, under the influence of suction, the water flows through the suction pipe 408 into the mounting cylinder 402. The water flow drives the impeller 403 to rotate, which in turn drives the rotating shaft 404. This rotation of the shaft drives the rotating filter cylinder 406. The water flow, after driving the impeller 403, then enters the probe 401 through the suction pipe 407 and then into the connecting water pipe 3. As the rotating filter cylinder 406 rotates... When the filter is in motion, the side scraper 412 will exert a reaction force on the rotating sleeve 410, and the rotating sleeve 410 will transmit the reaction force to the side scraper 412, thereby enabling the side scraper 412 to exert a force on the rotating filter cylinder 406. This allows the side scraper 412 to adhere tightly to the outer side of the rotating filter cylinder 406, and as the rotating filter cylinder 406 rotates, it will scrape off the impurities on the outside of the rotating filter cylinder 406. At the same time, the push spring 415 will exert an upward force on the limiting plate 413, and this force will be transmitted to the bottom scraper 414, so that the bottom scraper 414 can adhere tightly to the bottom of the rotating filter cylinder 406. Therefore, as the rotating filter cylinder 406 rotates, it will scrape off the impurities at the bottom of the rotating filter cylinder 406, thereby preventing the rotating filter cylinder 406 from becoming clogged. When the suction cap 511 is placed on top of the suction cylinder 706 and the water inlet cap 510 is placed on bottom of the water inlet cylinder 710, the suction pump 8 is started. The input end of the suction pump 8 generates suction. Since the suction branch pipe 10 is connected to the mounting cylinder 505, and the mounting cylinder 505 has a tension spring 506 inside, suction through the suction branch pipe 10 needs to overcome the elastic force of the tension spring 506. The main suction pipe 9 is connected to the suction cap 511. Since the suction cap 511 does not have a spring inside, and the elastic force of the push spring 707 is less than that of the tension spring 506, suction... After the air pump 8 generates suction, the suction force first enters the interior of the suction cap 511 through the main suction pipe 9, which then pulls the air baffle 708 upward. At this time, the vent 709 is not blocked by the air baffle 708, allowing the gas inside the sampling bottle 701 to be drawn away. Therefore, suction force is generated inside the sampling bottle 701, which is then transmitted to the water inlet cap 510 and the connecting water pipe 12 through the water pump 710, allowing the suction force to be transmitted to the interior of the water sample inlet 11, and then to the interior of the connecting water pipe 3. At this point, the underwater probe 4 can be used. When groundwater from the coal mine is drawn into the sampling bottle 701, the float 704 rises as the liquid level inside the bottle increases. Once the float 704 reaches the bottom of the blocking ring 705, it blocks the ring, preventing the air pump 8 from drawing out the gas from the sampling bottle 701. When there is no gas flow inside the suction cylinder 706, the reaction force of the push spring 707 pushes the air-blocking ring 708 downwards, blocking it at the vent 709. The air baffle ring 708 can then block the inside of the vent 709, preventing gas from flowing into the sampling bottle 701 and maintaining a low air pressure inside the sampling bottle 701. At this time, the air pressure inside the sampling bottle 701 is low and it is already filled with liquid, so the liquid will not flow out from the inside of the sampling bottle 701. When taking out the water sample, the suction cylinder 706 is unscrewed from the top of the sampling bottle 701. At this time, the air pressure inside the sampling bottle 701 can be balanced with the outside, and the water can flow out from the inside of the sampling bottle 701 through the water suction cylinder 710. When the sampling bottle 701 is filled with water, and the gas inside the sampling bottle 701 cannot be sucked out, the main suction pipe 9 is also blocked. At this time, the suction force enters the installation cylinder 505 through the suction branch pipe 10, thereby sucking out the gas in the installation cylinder 505. At this time, the limiting slide plate 507 will move towards the fixed post 501, and the limiting slide plate 507 will compress the tension spring 506, thereby driving the movable rod 508 to move towards the fixed post 501. The movable rod 508 can then drive the connecting plate 504 to move towards the fixed post 501, thereby allowing one end of the connecting rod 503 to move towards the fixed post 501. The movement causes the upper connecting rod 503 to move upwards, while the lower connecting rod 503 moves downwards. This, in turn, causes the upper and lower moving sleeves 502 to move up and down respectively, which in turn causes the suction cap 511 to move upwards and the water inlet cap 510 to move downwards. At this time, the water inlet cap 510 moves away from below the water pump 710, and the suction cap 511 moves away from above the suction pump 706. Meanwhile, the suction hole 512 on the suction cap 511 is blocked by the air block 514. Therefore, the main suction pipe 9 remains blocked, preventing it from drawing in gas. As a result, suction is still generated in the suction branch pipe 10. The system maintains the movable rod 508 inside the installation cylinder 505, and keeps the suction cap 511 and water inlet cap 510 open. The sampling bottle 701, without water sample, is then moved between the suction cap 511 and water inlet cap 510 using the installation mechanism 6. The suction pump 8 is then turned off and the exhaust valve 509 is opened, allowing gas to enter the installation cylinder 505. The internal air pressure of the installation cylinder 505 is then balanced with the external pressure. At this point, the tension spring 506 pushes the limiting slide plate 507 away from the fixed post 501, which in turn pushes the movable rod 508 away from the fixed post 501. When the connecting plate 504 is moved away from the fixed column 501, it can drive the connecting rod 503 to pull the two moving sleeves 502 to the middle, which in turn can drive the suction cap 511 to move downward and the water inlet cap 510 to move upward. Then, the suction cap 511 can cover the top of the suction cylinder 706 and the water inlet cap 510 can cover the bottom of the suction cylinder 710. At the same time, when the suction cap 511 moves downward, the suction hole 512 will also move downward. Therefore, the air blocking block 514 will not block the suction hole 512, so the gas inside the sampling bottle 701 can be extracted for the next round of water sampling. After the suction cap 511 leaves the top of the suction cylinder 706 and the water inlet cap 510 leaves the bottom of the water inlet cylinder 710, the motor 601 is started. The output end of the motor 601 rotates, driving the rotating column 602 to rotate, which in turn drives the hexagonal column 603 to rotate. The hexagonal column 603 drives the sliding sleeve column 605 to rotate, which in turn drives the top sleeve 607 and the bottom sleeve 608 to rotate. This drives the collection and storage mechanism 7 to rotate, making it easier to move the sampling bottle 701 filled with samples away. The empty sampling bottle 701 can be moved between the suction cap 511 and the water inlet cap 510. When taking out the sampling bottle 701 filled with water, first open the suction cap 511 and the water inlet cap 510 up and down respectively, and pull the sliding sleeve column 605 upward, which increases the distance between the top sleeve 607 and the bottom sleeve 608. Therefore, the sampling bottle 701 filled with water sample can be removed from the mounting mechanism 6.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated sampling device for groundwater detection in coal mines, comprising a base (1), a reel (2), and an air pump (8), characterized in that, The outer side of the coil (2) is wound with a connecting water pipe (3). One end of the connecting water pipe (3) is provided with an underwater probe mechanism (4), and the other end of the connecting water pipe (3) is fixedly connected to the inside of the coil (2). The coil (2) is used to wind up the connecting water pipe (3). The top of the base (1) is provided with a sampling mechanism (5), the middle of the base (1) is provided with an installation mechanism (6), and the inner side of the installation mechanism (6) is provided with a collection and storage mechanism (7). The sampling mechanism (5) is used to cooperate with the collection and storage mechanism (7) to extract water samples. The installation mechanism (6) is used to replace different collection and storage mechanisms (7). The top of the input end of the air pump (8) is fixedly connected with an air extraction main pipe (9), and the side of the input end of the air pump (8) is fixedly connected with an air extraction branch pipe (10). The inside of the coil (2) is provided with a water sample inlet groove (11), and one end of the coil (2) is rotatably connected with a connecting water pipe (12).

2. The automated sampling device for groundwater detection in coal mines according to claim 1, characterized in that, The underwater probe mechanism (4) includes a probe rod (401), the top of which is fixedly connected to one end of the connecting water pipe (3), and a mounting cylinder (402) fixedly connected to the bottom of the probe rod (401). An impeller (403) is rotatably connected inside the mounting cylinder (402), and a rotating shaft (404) is fixedly connected to the bottom of the impeller (403). A fixed cylinder (405) is fixedly connected to the bottom of the mounting cylinder (402), and a rotating filter cylinder (406) is rotatably connected to the bottom end of the fixed cylinder (405). The bottom of the rotating shaft (404) is fixedly connected to the bottom end of the rotating filter cylinder (406). The bottom of the probe rod (401) is connected to the middle of the mounting cylinder (402). A suction pipe (407) is fixedly connected between the parts. A suction pipe (408) is fixedly connected between the outside of the fixed cylinder (405) and the outside of the mounting cylinder (402). A mounting post (409) is fixedly connected to the outside of the fixed cylinder (405). A rotating sleeve (410) is rotatably connected to the outside of the mounting post (409). A torsion spring (411) is provided inside the rotating sleeve (410). A side scraper (412) is fixedly connected to the outside of the rotating sleeve (410). A limit plate (413) is slidably connected inside the bottom end of the mounting post (409). A bottom scraper (414) is fixedly connected to the bottom of the limit plate (413). A push spring (415) is sleeved on the outside of the bottom scraper (414).

3. The automated sampling device for groundwater detection in coal mines according to claim 1, characterized in that, The sampling mechanism (5) includes a fixed column (501), which is fixedly connected to the top of the base (1). Both ends of the fixed column (501) are slidably connected to movable sleeves (502). A connecting rod (503) is rotatably connected to the outside of the movable sleeve (502). A connecting plate (504) is rotatably connected between the two connecting rods (503). An installation cylinder (505) is fixedly connected to the middle of the fixed column (501). The installation cylinder (505) is internally equipped with… There is a tension spring (506), and a limiting slide plate (507) is slidably connected inside the mounting air cylinder (505). A movable rod (508) is fixedly connected to the end of the limiting slide plate (507) away from the tension spring (506). The end of the movable rod (508) away from the limiting slide plate (507) is fixedly connected to the outside of the connecting plate (504). An exhaust valve (509) is fixedly connected to the outside of the mounting air cylinder (505). A water inlet cap is fixedly connected to the bottom end of the lower movable sleeve (502). (510), an air extraction cap (511) is fixedly connected to the top of the upper movable sleeve (502). An air extraction hole (512) is opened in the middle of the air extraction cap (511). A fixed support rod (513) is fixedly connected to the middle of the fixed column (501). An air baffle block (514) is fixedly connected to the top of the fixed support rod (513). The air baffle block (514) is slidably connected to the inside of the air extraction cap (511). One end of the tension spring (506) is fixedly connected to the air cylinder ( Inside 505), the other end of the tension spring (506) is fixedly connected to the end of the limiting slide plate (507) away from the movable rod (508), the end of the main suction pipe (9) away from the suction pump (8) is fixedly connected to the outside of the suction cap (511), the end of the suction branch pipe (10) away from the suction pump (8) is fixedly connected to the outside of the installation air cylinder (505), and the end of the connecting water pipe (12) away from the hose reel (2) is fixedly connected to the bottom of the water inlet cap (510).

4. An automated sampling device for groundwater detection in coal mines according to claim 1, characterized in that, The installation mechanism (6) includes a motor (601), the bottom of which is fixedly connected to the bottom of the base (1), a rotating column (602) is fixedly connected to the output end of the motor (601), a hexagonal column (603) is fixedly connected to the top of the rotating column (602), a limiting circular plate (604) is fixedly connected to the top of the hexagonal column (603), a sliding sleeve column (605) is slidably connected to the outside of the hexagonal column (603), a retaining spring (606) is provided inside the sliding sleeve column (605), a plurality of top sleeves (607) are fixedly connected to the top of the sliding sleeve column (605), a plurality of bottom sleeves (608) are fixedly connected to the top of the rotating column (602), and the limiting circular plate (604) is slidably connected inside the sliding sleeve column (605).

5. An automated sampling device for groundwater detection in coal mines according to claim 4, characterized in that, The collection and storage mechanism (7) includes multiple sampling bottles (701), which are respectively disposed between multiple top sleeves (607) and multiple bottom sleeves (608). A bracket (702) is fixedly connected inside the sampling bottle (701), a stabilizing column (703) is fixedly connected to the top of the bracket (702), a float (704) is slidably connected to the outside of the stabilizing column (703), a blocking ring (705) is fixedly connected to the top of the sampling bottle (701), an air pump (706) is threadedly connected to the top of the sampling bottle (701), a push spring (707) is provided inside the air pump (706), an air baffle ring (708) is slidably connected inside the air pump (706), multiple vent holes (709) are opened at the bottom of the air pump (706), and a water pump (710) is fixedly connected to the bottom of the sampling bottle (701).

6. An automated sampling device for groundwater detection in coal mines according to claim 2, characterized in that, One end of the torsion spring (411) is fixedly connected to the outside of the mounting post (409), and the other end of the torsion spring (411) is fixedly connected to the inside of the rotating sleeve (410).

7. An automated sampling device for groundwater detection in coal mines according to claim 2, characterized in that, One end of the push spring (415) is fixedly connected to the bottom of the limiting plate (413), and the other end of the push spring (415) is fixedly connected to the inner bottom end of the mounting post (409).

8. An automated sampling device for groundwater detection in coal mines according to claim 4, characterized in that, One end of the clamping spring (606) is fixedly connected to the bottom of the limiting circular plate (604), and the other end of the clamping spring (606) is fixedly connected to the inner bottom end of the sliding sleeve (605).

9. An automated sampling device for groundwater detection in coal mines according to claim 4, characterized in that, The clamping spring (606) is sleeved on the outside of the hexagonal column (603), and the outer bottom end of the rotating column (602) is rotatably connected to the top of the base (1).

10. An automated sampling device for groundwater detection in coal mines according to claim 5, characterized in that, One end of the push spring (707) is fixedly connected to the top of the inside of the air pump (706), and the other end of the push spring (707) is fixedly connected to the top of the air baffle (708).

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