Portable sampler for detecting heavy metals in water environment for mine

Abstract

The invention discloses a portable sampler for detecting heavy metals in a water environment for a mine, and belongs to the technical field of water environment monitoring equipment.The portable sampler for detecting heavy metals in the water environment for the mine comprises a floating plate, a support is connected to the upper portion of the exterior of the floating plate, and an extraction mechanism is arranged on the upper portion of the interior of the support; the extraction mechanism can extract water from a water body, a moving mechanism is arranged on the upper portion in the support, a winch is arranged in the middle of the interior of the support, sample storage mechanisms are arranged on the two sides of the exterior of the floating plate, floating air bags are arranged on the two sides of the exterior of the floating plate, and the floating air bags and the sample storage mechanisms are located on different side edges. Through the arrangement of the extraction mechanism and the winch, water at different depths in a water area can be sampled, meanwhile, through the arrangement of the moving mechanism and the sample storage mechanism, different extracted water samples can be automatically and continuously collected and independently stored without mutual interference, and finally, the device is convenient to carry due to the split arrangement.

Description

Technical Field

[0001] The invention belongs to the technical field of water environment monitoring equipment, and in particular relates to a portable sampler for heavy metal detection in water environment for use in mines. Background Art

[0002] Water quality testing is the process of determining the types of pollutants in water, the concentrations of various pollutants and their changing trends, and evaluating the water quality. The scope of water quality testing is very wide, including unpolluted and polluted natural water and various industrial drainage. Water resources are the most important natural resources in human society.

[0003] In the detection of mine water environment, workers need to determine the presence of minerals based on the content of heavy metals in the water environment. Therefore, in the initial detection of mines, the detection of heavy metal content in the water environment is extremely important.

[0004] Before staff conduct tests on the water environment of an unfamiliar mine, they need to first take water samples and then test the water using testing instruments.

[0005] However, existing water environment samplers are usually used by staff to directly put a water pipe into the water and use a pump to extract water samples. Generally, they can only conduct rough sampling of the water area and cannot sample water bodies at different depths in the water area. Therefore, the sampling efficiency is low, the sampling is difficult, the labor intensity of the staff is high, it is time-consuming and labor-intensive, and the sampling results are not accurate enough. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a portable sampler for heavy metal detection in water environment for use in mines.

[0007] The technical solution adopted to solve the above technical problems is: a portable sampler for heavy metal detection in water environment for mines, including a floating plate, a bracket is connected to the upper part of the outside of the floating plate, an extraction mechanism is arranged on the upper part of the inside of the bracket, the extraction mechanism can pump water from the water body, a moving mechanism is arranged on the upper part of the inside of the bracket, the moving mechanism drives the extraction mechanism to move, a winch is arranged in the middle part of the bracket, sample storage mechanisms are arranged on both sides of the outside of the floating plate, water samples extracted by the extraction mechanism can be stored by the sample storage mechanism, floating air bags are arranged on both sides of the outside of the floating plate, and the floating air bags and the sample storage mechanism are located on different sides.

[0008] Through the above technical solution, the extraction mechanism pumps water from the water area and transfers it to the sample storage mechanism for storage. During the pumping process, the winch will cooperate with the pumping pipe to descend and can stay in different water layers for sampling. At the same time, during the sampling process, the extraction mechanism will store different water samples in different sample storage bottles according to the sampling of different water layers, so that the water sample of each water layer is more accurate.

[0009] Furthermore, a lifting hole is opened in the middle of the floating board, buckles are fixedly connected to the front and rear sides of the outside of the floating board, the floating airbag is fixedly arranged inside the buckle, connecting holes are opened on both sides of the floating board near the buckle, and shoulder straps are fixedly connected to both ends of the surface of the floating board away from the bracket.

[0010] Through the above technical solution, the water suction pipe inside the extraction mechanism will pass through the lifting hole to move up and down, which will be more convenient when taking water samples. At the same time, the setting of the floating airbag can assist the float to float on the water surface and will not sink easily. Finally, the setting of the shoulder strap can make the device easier to carry.

[0011] Furthermore, the sample storage mechanism includes a hinge fixedly connected to the floating plate, a rotating plate is fixedly connected to the outside of the side of the hinge that is not fixedly connected to the floating plate, the rotating plate rotates around the hinge, a mounting hole is opened inside the rotating plate, an internal thread is engraved inside the mounting hole, a funnel is arranged inside the rotating plate, an internal thread is engraved inside the funnel, an external thread is engraved outside the funnel, the funnel is connected to the mounting hole through threads, a sample storage bottle is arranged below the outside of the funnel, and the sample storage bottle is connected to the inside of the funnel through threads.

[0012] Through the above technical solution, water will be collected by the funnel when it comes out of the outlet pipe, so the sampling speed and efficiency will be greatly improved. Threads are set on the mounting hole and inside and outside the funnel to facilitate the connection between the funnel and the rotating plate, the sample bottle and the funnel, and finally the rotating plate is connected through a hinge. When the device is not in use, the funnel can be removed and the rotating handle can be folded and stored.

[0013] Furthermore, the bracket is located in the middle of the upper part of the outside of the floating plate, the outer bottom surface of the bracket is fixedly connected with a connecting rod, the outside of the connecting rod is engraved with external threads, a nut is rotatably sleeved on the outside of the connecting rod, and the connecting rod is located inside the connecting hole.

[0014] Through the above technical solution, the bracket can be removed from the floating plate, which will make it more convenient and quicker to store and move the device.

[0015] Furthermore, the moving mechanism includes a screw rod arranged on the upper part of the bracket, the outer end of the screw rod is fixedly connected to a stepping reciprocating motor, the stepping reciprocating motor is located outside the bracket, the stepping reciprocating motor drives the screw rod to rotate, guide rods are fixedly connected to the upper sides of the bracket, moving blocks are placed on the outside of the guide rods and the moving rods, the screw rod passes through the moving block, rod holes are opened on both sides of the moving block, and the guide rods are located inside the rod holes.

[0016] Through the above technical solution, the stepping reciprocating motor drives the screw to rotate, thereby driving the moving card to reciprocate back and forth outside the guide rod, thereby driving part of the extraction mechanism to move together and release the extracted water sample.

[0017] Furthermore, the extraction mechanism includes a pump fixedly connected to the upper surface of the moving block, the water inlet end of the pump is fixedly connected to a pumping pipe, the pumping pipe passes through the moving block, the pumping pipe is fixedly connected to a filter at one end away from the pump, a counterweight is placed on the outside of the pumping pipe, and the counterweight is located above the filter.

[0018] Through the above technical solution, the counterweight block will drive the filter to sink together in the water, and the cooperation between the winch and the suspension rope will control the descent depth of the filter, thereby controlling the depth of water sample collection, making it convenient for the device to perform sampling in different water layers.

[0019] Furthermore, the extraction mechanism also includes a water outlet pipe arranged outside the water outlet of the pump, a movable groove is opened in the middle of the upper inner part of the bracket, the water outlet pipe is located inside the movable groove, the water outlet pipe is U-shaped, and the outside of the water outlet pipe is fixedly connected to a ratchet at one end close to the pump, a gear is placed on the outside of the water outlet pipe, a ratchet groove is opened inside the gear, the ratchet is located inside the ratchet groove, and the gear is located below the bracket.

[0020] Furthermore, racks are fixedly connected to both sides of the lower surface above the bracket, and the gear is meshed with the racks.

[0021] Through the above technical solution, the gear and the rack will rotate together, and the setting of the ratchet and the ratchet groove ensures that when the gear rotates in a certain direction, it will not drive the water outlet pipe to rotate. When the gear rotates in the opposite direction, the ratchet and the ratchet groove will clamp the water outlet pipe and drive it to rotate, thereby achieving the effect of rotating the water outlet pipe, thereby achieving water samples sampled at different levels and filling them into different sample bottles. The water outlet pipe is located above the funnel at the end away from the pump.

[0022] Furthermore, a fixing frame is fixedly connected to the middle part of the bracket, a winch is fixedly connected to the lower part of the fixing frame, a lifting rope is wound inside the winch, and the lifting rope is connected to the filter screen.

[0023] Through the above technical solution, the released length of the suspension rope is the descent depth of the filter screen, which is also the depth of water sample collection. The descent of the suspension rope is controlled by the winch, thereby controlling the depth of water sample collection.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention can extract water from different depths and layers of the water area through the setting of the extraction mechanism, and can automatically control the sampling depth in cooperation with the winch, thereby improving the accuracy of water sampling and reducing the difficulty of sampling; (2) The setting of the moving mechanism and the sample storage mechanism can store the water samples of different depths and layers extracted separately, and the residual water samples in the middle can also be discharged, thereby ensuring the accuracy of different water samples and avoiding mutual interference; (3) Finally, the present invention can disassemble and install structures such as the floating plate and the bracket through a detachable combination, so that they can be combined together when working and can be separated when not working, and they are all provided with shoulder straps and have a shape that is easy to carry and carry, thereby improving the practicality and portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is a top view of the structures such as the floating plate and the sample storage mechanism in the present invention; Figure 4 It is a bottom view of the structures such as the floating plate and the sample storage mechanism in the present invention; Figure 5 It is a three-dimensional diagram of the structure of some sample storage mechanisms in the present invention; Figure 6 It is a schematic diagram of the structure of the support, the moving structure and the partial extraction mechanism in the present invention; Figure 7 It is a schematic diagram of the structure of part of the moving structure and part of the extraction mechanism in the present invention; Figure 8 It is a bottom view of the structure including the bracket, gear and water outlet pipe in the present invention; Fig. 9 It is a three-dimensional diagram of the structures of the water outlet pipe, gears, etc. in the present invention.

[0026] Reference numerals: 100, moving mechanism; 101, screw rod; 102, stepping reciprocating motor; 103, guide rod; 104, moving block; 105, rod hole; 200, sample storage mechanism; 201, sample storage bottle; 202, rotating plate; 203, funnel; 204, hinge; 205, mounting hole; 206, external thread; 207, internal thread; 300, winch; 301, lifting rope; 302, fixing frame; 400, floating plate; 40 1. Buckle; 402. Floating airbag; 403. Connecting hole; 404. Lifting hole; 405. Shoulder strap; 500. Bracket; 501. Moving slot; 502. Connecting rod; 503. Nut; 600. Extraction mechanism; 601. Water outlet pipe; 602. Filter; 603. Counterweight; 604. Water suction pipe; 605. Pump; 606. Water outlet; 607. Rack; 608. Gear; 609. Ratchet; 610. Ratchet groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1 - Fig. 9 As shown, a portable sampler for heavy metal detection in water environment for mines in this embodiment includes a float plate 400, a bracket 500 is connected to the upper part of the outside of the float plate 400, an extraction mechanism 600 is arranged on the upper part of the inside of the bracket 500, and the extraction mechanism 600 can pump water from the water body, a moving mechanism 100 is arranged on the upper part of the inside of the bracket 500, and the moving mechanism 100 drives the extraction mechanism 600 to move, a winch 300 is arranged in the middle part of the inside of the bracket 500, sample storage mechanisms 200 are arranged on both sides of the outside of the float plate 400, and the water samples extracted by the extraction mechanism 600 can be stored by the sample storage mechanism 200, and floating air bags 402 are arranged on both sides of the outside of the float plate 400. The floating air bags 402 can ensure that the device will not sink into the water easily, and the floating air bags 402 and the sample storage mechanism 200 are located on different sides, so that the floating air bags 402 and the sample storage mechanism 200 will not interfere with each other.

[0029] like Figure 1 - Figure 4 As shown, a lifting hole 404 is opened in the middle of the floating plate 400, buckles 401 are fixedly connected to the front and back of both sides of the outside of the floating plate 400, a floating airbag 402 is fixedly arranged inside the buckle 401, and connecting holes 403 are opened on both sides of the floating plate 400 near the buckle 401, and shoulder straps 405 are fixedly connected to both ends of the surface of the side of the floating plate 400 away from the bracket 500, so that the device can be more convenient to carry.

[0030] like Figure 1 - Figure 5 As shown, the sample storage mechanism 200 includes a hinge 204 fixedly connected to the floating plate 400, and a rotating plate 202 is fixedly connected to the outside of the hinge 204 that is not fixedly connected to the floating plate 400. A buckle is provided between the rotating plate 202 and the floating plate 400, so that the rotating plate 202 can be fixed by the buckle after being stored and will not be easily loosened. The rotating plate 202 rotates around the hinge 204, and a mounting hole 205 is opened inside the rotating plate 202, and an internal thread 207 is engraved inside the mounting hole 205. A funnel 203 is provided inside the rotating plate 202, and an internal thread 207 is engraved inside the funnel 203, and an external thread 206 is engraved outside the funnel 203. The funnel 203 is connected to the mounting hole 205 through threads, and a sample storage bottle 201 is provided below the outside of the funnel 203, and the sample storage bottle 201 is connected to the inside of the funnel 203 through threads. In this way, the sample storage bottle 201 will be more convenient to install and remove, and the funnel 203 is also easy to remove and carry, and will not affect the folding and unfolding of the rotating plate 202.

[0031] like Figure 1 , Figure 2 , Figure 6 As shown, the bracket 500 is located in the upper middle part of the outside of the floating plate 400, and the bottom surface of the outside of the bracket 500 is fixedly connected to a connecting rod 502, the outside of the connecting rod 502 is engraved with an external thread 206, and a nut 503 is placed on the external rotating sleeve of the connecting rod 502. The connecting rod 502 is located inside the connecting hole 403, and a shoulder strap 405 is also provided on one side of the outside of the bracket 500, so that after the bracket 500 is disassembled from the floating plate 400, the bracket 500 and other structures will also be easy to carry.

[0032] like Figure 1 - Figure 2 , Figure 6 - Figure 7 As shown, the moving mechanism 100 includes a screw 101 arranged on the upper part of the bracket 500, and the outer end of the screw 101 is fixedly connected to a stepping reciprocating motor 102, which is located outside the bracket 500. The stepping reciprocating motor 102 drives the screw 101 to rotate, and guide rods 103 are fixedly connected to both sides of the upper part of the bracket 500. A moving block 104 is placed on the outside of the guide rod 103 and the moving rod, and the screw 101 passes through the moving block 104. Rod holes 105 are opened on both sides of the moving block 104, and the guide rod 103 is located inside the rod hole 105. In this way, the moving block 104 will not rotate easily during the movement.

[0033] like Figure 1 - Figure 2 , Figure 6 - Fig. 9As shown, the extraction mechanism 600 includes a pump 605 fixedly connected to the upper surface of the moving block 104, the pump 605 is started intermittently, the water inlet end of the pump 605 is fixedly connected to a pumping pipe 604, the pumping pipe 604 passes through the moving block 104, the pumping pipe 604 is fixedly connected to a filter 602 at one end away from the pump 605, a counterweight 603 is placed on the outside of the pumping pipe 604, the counterweight 603 is located above the filter 602, and the counterweight 603 will carry the filter 602 down.

[0034] The extraction mechanism 600 also includes a water outlet pipe 601 arranged outside the water outlet 606 of the pump 605. A movable groove 501 is opened in the middle of the upper inner part of the bracket 500. The water outlet pipe 601 is located inside the movable groove 501. The water outlet pipe 601 is U-shaped. A ratchet 609 is fixedly connected to the outside of the water outlet pipe 601 at one end close to the pump 605. A gear 608 is placed on the outside of the water outlet pipe 601. A ratchet groove 610 is opened inside the gear 608. The ratchet 609 is located inside the ratchet groove 610. The gear 608 and the ratchet groove 610 will not engage when the ratchet 609 and the outside of the water outlet pipe 601 rotate counterclockwise, but will engage when they rotate clockwise. The gear 608 is located below the bracket 500.

[0035] Racks 607 are fixedly connected to both sides of the lower surface above the bracket 500 , and the gear 608 is meshed with the racks 607 .

[0036] A fixing frame 302 is fixedly connected to the middle of the bracket 500 , a winch 300 is fixedly connected to the lower part of the fixing frame 302 , a suspension rope 301 is wound inside the winch 300 , and the suspension rope 301 is connected to the filter screen 602 .

[0037] The working principle of this embodiment is as follows. Before using this device to collect water samples, first insert the bracket 500 into the connecting hole 403 through the connecting rod 502 and pass through the floating plate 400, then rotate the nut 503 and put it on the outside of the connecting rod 502, then turn the rotating plate 202 around the hinge 204 to unfold it, and then rotate the funnel 203 into the installation hole 205, and rotate the sample bottle 201 to enter the funnel 203. Then, connect the water suction pipe 604 to the water inlet of the pump 605, and at the same time, the suspension rope 301 is also connected to the filter screen 602, so that the assembly of this device is completed.

[0038] When using the device to collect water samples, first place the assembled device on the water surface where sampling is required, and then start the device. First, the winch 300 does not release the lifting rope 301, and the filter screen 602 is located near the water surface. At this time, the pump 605 starts to pump water. The water sample near the water surface passes through the filter screen 602, the pumping pipe 604, the pump 605 and the outlet pipe 601 in turn. When the water sample near the water surface flows out of the outlet pipe 601, the water sample near the water surface falls into the funnel 203 under the action of gravity, and flows into the sample storage bottle 201 uniformly. Because the pump 605 is intermittently operated, the pump 605 will stop after running for a period of time, so that the water sample collection work near the water surface can be completed.

[0039] When the device continues to operate to collect water samples from deep depths, first the winch 300 releases the suspension rope 301. The release length of the suspension rope 301 is the depth of the filter screen 602 moving downward from the water surface. When the suspension rope 301 is released, the counterweight block 603 will drop in the water because it loses the traction of the suspension rope 301. When the counterweight block 603 drops, it will drive the filter screen 602 to drop. When the filter screen 602 reaches the appropriate depth, it will be pulled again by the suspension rope 301 and will not continue to drop. At this time, the stepping reciprocating motor 102 starts and drives the screw 101 to rotate, so that the moving block 104 moves horizontally. The moving block 104 moves horizontally. 04 During the movement, the pump 605 and the water outlet pipe 601 will be driven to move together. When the water outlet pipe 601 moves between the two funnels 203, the pump 605 will be started and run again to drain the remaining water in the suction pipe 604. Then the pump 605 will stop and the moving block 104 will continue to move until the water outlet pipe 601 is moved above another funnel 203. At this time, the pump 605 will be started again to collect water samples at this depth. In this way, water samples of various depths can be collected and accurately stored in different sample bottles 201, thereby avoiding mutual interference between water samples of different water layers.

[0040] When the water outlet pipe 601 moves from one end to the other end inside the bracket 500, the gear 608 placed outside the water outlet pipe 601 will mesh with the rack 607, for example ( Figure 6), the water outlet pipe 601 moves from the left side to the right side, and the gear 608 rotates counterclockwise, but due to the setting of the ratchet 609 and the ratchet groove 610, the water outlet pipe 601 will not rotate. When the water outlet pipe 601 moves to the rightmost side, the stepping reciprocating motor 102 rotates the screw 101 in the opposite direction, driving the moving block 104 to move from right to left, thereby driving the water outlet pipe 601 to move from right to left. At this time, the gear 608 has not yet separated from the rack 607, and the reverse movement of the water outlet pipe 601 will cause the gear 608 to rotate clockwise. Due to the setting of the ratchet 609 and the ratchet groove 610, the water outlet pipe 601 will be stuck with the gear 608 and will be driven by the gear 608 to rotate together, thereby rotating from the back of the bracket 500 to the front, so that the rotation of the water outlet pipe 601 can be completed, and at this time, the water outlet pipe 601 can store water samples in the sample storage mechanism 200 on the front side of the bracket 500.

[0041] When the sample storage mechanisms 200 on both sides are fully stored, or the sampling data meets the standards, the staff can take back the device and remove the sample bottle 201 for sealed collection for subsequent testing and analysis. In summary, the device can complete automatic and continuous multi-water layer sampling, reduce the labor intensity of the staff, and improve work efficiency.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A portable sampler for heavy metal detection in water environment for use in mines, comprising a floating plate (400), characterized in that: The upper part of the outside of the floating plate (400) is connected to a bracket (500), the upper part of the inside of the bracket (500) is provided with an extraction mechanism (600), the extraction mechanism (600) can pump water from the water body, the upper part of the inside of the bracket (500) is provided with a moving mechanism (100), the moving mechanism (100) drives the extraction mechanism (600) to move, a winch (300) is provided in the middle part of the inside of the bracket (500), sample storage mechanisms (200) are provided on both sides of the outside of the floating plate (400), the water sample extracted by the extraction mechanism (600) can be stored by the sample storage mechanism (200), and floating air bags (402) are provided on both sides of the outside of the floating plate (400), the floating air bags (402) and the sample storage mechanism (200) are located on different sides.

2. A portable sampler for heavy metal detection in water environment for mines according to claim 1, characterized in that: A lifting hole (404) is provided in the middle of the floating plate (400), buckles (401) are fixedly connected to the front and rear sides of the outside of the floating plate (400), the floating airbag (402) is fixedly arranged inside the buckle (401), connecting holes (403) are provided on both sides of the floating plate (400) close to the buckle (401), and shoulder straps (405) are fixedly connected to the two ends of the surface of the floating plate (400) on the side away from the bracket (500).

3. The portable sampler for heavy metal detection in water environment for mines according to claim 1 is characterized in that: The sample storage mechanism (200) comprises a hinge (204) fixedly connected to the floating plate (400); a rotating plate (202) is fixedly connected to the outside of the hinge (204) which is not fixedly connected to the floating plate (400); the rotating plate (202) rotates around the hinge (204); a mounting hole (205) is provided inside the rotating plate (202); an internal thread (207) is engraved inside the mounting hole (205); a funnel (203) is provided inside the rotating plate (202); an internal thread (207) is engraved inside the funnel (203); an external thread (206) is engraved outside the funnel (203); the funnel (203) is connected to the mounting hole (205) by threads; a sample storage bottle (201) is provided below the outside of the funnel (203); the sample storage bottle (201) is connected to the inside of the funnel (203) by threads.

4. A portable sampler for heavy metal detection in water environment for mines according to claim 2, characterized in that: The bracket (500) is located in the middle of the upper part of the outside of the floating plate (400), and the outer bottom surface of the bracket (500) is fixedly connected to a connecting rod (502), the outer surface of the connecting rod (502) is engraved with an external thread (206), and a nut (503) is rotatably sleeved on the outer surface of the connecting rod (502), and the connecting rod (502) is located inside the connecting hole (403).

5. The portable sampler for heavy metal detection in water environment for mines according to claim 1 is characterized in that: The moving mechanism (100) comprises a screw rod (101) arranged above the inside of a bracket (500); a stepping reciprocating motor (102) is fixedly connected to the outer end of the screw rod (101); the stepping reciprocating motor (102) is located outside the bracket (500); the stepping reciprocating motor (102) drives the screw rod (101) to rotate; guide rods (103) are fixedly connected to both sides of the inside of the bracket (500); a moving block (104) is sleeved outside the guide rod (103) and the moving rod; the screw rod (101) passes through the moving block (104); rod holes (105) are opened on both sides of the inside of the moving block (104); and the guide rod (103) is located inside the rod hole (105).

6. A portable sampler for heavy metal detection in water environment for use in mines according to claim 5, characterized in that: The extraction mechanism (600) comprises a pump (605) fixedly connected to the upper surface of the moving block (104); a water inlet end of the pump (605) is fixedly connected to a water pumping pipe (604); the water pumping pipe (604) passes through the moving block (104); the water pumping pipe (604) is fixedly connected to a filter screen (602) at one end away from the pump (605); a counterweight (603) is placed on the outside of the water pumping pipe (604); and the counterweight (603) is located above the filter screen (602).

7. A portable sampler for heavy metal detection in water environment for use in mines according to claim 6, characterized in that: The extraction mechanism (600) further comprises a water outlet pipe (601) arranged outside the water outlet (606) of the pump (605); a movable groove (501) is provided in the middle of the upper inner portion of the bracket (500); the water outlet pipe (601) is located inside the movable groove (501); the water outlet pipe (601) is U-shaped; a ratchet (609) is fixedly connected to the outer end of the water outlet pipe (601) close to the pump (605); a gear (608) is sleeved on the outer portion of the water outlet pipe (601); a ratchet groove (610) is provided inside the gear (608); the ratchet (609) is located inside the ratchet groove (610); and the gear (608) is located below the bracket (500).

8. The portable sampler for heavy metal detection in water environment for use in mines according to claim 7 is characterized in that: Racks (607) are fixedly connected to both sides of the lower surface above the bracket (500), and the gear (608) is meshed with the racks (607).

9. A portable sampler for heavy metal detection in water environment for use in mines according to claim 6, characterized in that: A fixing frame (302) is fixedly connected to the middle of the bracket (500), a hoist (300) is fixedly connected to the lower part of the fixing frame (302), a lifting rope (301) is wound inside the hoist (300), and the lifting rope (301) is connected to the filter screen (602).

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