A sampling device for environmental monitoring

Abstract

The present invention relates to the field of environmental monitoring technology, and in particular to a sampling device for environmental monitoring, including a handheld rod, a driving member, a connecting block and a collecting inner cylinder, etc.; the handheld rod is rotatably connected to the driving member, and the handheld rod and the driving member are connected by an electric rotating shaft; the driving member is fixedly connected to the connecting block; the collecting inner cylinder is fixedly connected to the connecting block, and a plurality of inner holes are opened on the collecting inner cylinder. The present invention drives the thermal insulation curtain to move upward to further wrap the protective net by winding up the steel wire rope, thereby achieving the heat preservation and sunshade effect of the sampled water sample, preventing ultraviolet rays from damaging microorganisms in the water sample, and connecting the outer holes of different vertical lines with the inner holes on different collecting chambers in turn to take water samples on different horizontal lines, thereby achieving the sampling operation of water bodies at different depths, which is convenient for researchers to understand the situation of chemical substances polluting water bodies, and makes the water body detection data more representative.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental monitoring, and in particular to a sampling device for environmental monitoring. Background Art

[0002] Water quality sampling is an important part of environmental monitoring. By collecting water samples from polluted water bodies, basic data on water pollution can be collected and analyzed.

[0003] When sampling in water bodies, due to the presence of chemical pollution in the water bodies, especially in water bodies near some factories, the solubility of impure chemical substances in the water may be higher. When the water flow is polluted by chemical substances, the sampler usually needs to use special materials that are corrosion-resistant and do not react with chemical substances, such as glass and polytetrafluoroethylene (PTFE) materials, to prevent the sampler from reacting with the chemical substances in the water body. However, whether it is a sampler made of glass or polytetrafluoroethylene (PTFE), when sampling in water bodies with turbulent water flow, the turbulent river flow will impact the sand and stones, causing the sampler to be easily hit by sand and stones during the sampling process and produce scratches, thereby reducing its service life. In addition, when sampling, the bottom of the sampler will contact the bottom of the water body. If the sampler is made of glass, there is a risk that the moving stones will damage the sampler when the turbulent river flow impacts the deposited stones.

[0004] Furthermore, in addition, the waters usually contain microorganisms, algae and volatile organic compounds. After the sampling is completed, the microorganisms in the water sample are damaged by ultraviolet rays during the process of transferring the sampler from the ship to the sampling vehicle, and the volatile organic compounds in the water sample evaporate under light and high temperatures, resulting in the accuracy of subsequent water sample testing being affected. Summary of the invention

[0005] In order to overcome the problem of sampling in a fast-flowing river, the fast-flowing river water impacts sand and stones, causing the sampler to be easily hit by sand and stones and produce scratches, and when sampling, the bottom of the sampler will contact the bottom of the water area. If the sampler is made of glass, there is a risk of the moving stones damaging the sampler when the fast-flowing river water impacts the deposited stones and moves. After the sampling is completed, during the process of transferring the sampler from the ship to the sampling vehicle, the microorganisms in the water sample are damaged by ultraviolet rays, and the volatile organic compounds in the water sample volatilize under light and high temperature, resulting in the accuracy of the water sample being affected. The present invention provides a sampling device for environmental monitoring.

[0006] Technical solution: A sampling equipment for environmental monitoring, including a hand-held rod, a driving member, a connecting block and a collecting inner cylinder; the hand-held rod is rotatably connected to the driving member, and the hand-held rod and the driving member are connected by an electric rotating shaft; the driving member is fixedly connected to the connecting block; the collecting inner cylinder is fixedly connected to the connecting block, and the collecting inner cylinder is provided with a plurality of inner holes; it also includes a protective net, a thermal insulation curtain, a rotating outer ring, a transmission assembly and a lifting assembly; the connecting block is connected to the transmission assembly; the transmission assembly is connected to the rotating outer ring, and the rotating outer ring is provided with a plurality of outer holes, the outer holes and the inner holes are staggered, and the inner wall surface of the rotating outer ring contacts the outer wall surface of the collecting inner cylinder; the transmission assembly is used to drive the rotating outer ring to rotate; the rotating outer ring is detachably connected to a protective net for protecting the rotating outer ring and the collecting inner cylinder; the protective net is covered with a thermal insulation curtain; the connecting block is connected to a lifting assembly for driving the thermal insulation curtain to unfold, and the lifting assembly is connected to the thermal insulation curtain.

[0007] More preferably, the transmission assembly includes a driving gear and a driven gear; a driving gear is provided on the connecting block, a rotating motor is fixedly connected to the connecting block, and an output end of the rotating motor is fixedly connected to the driving gear; a driven gear is rotatably connected to the connecting block, and the driven gear is meshed with the driving gear; a rotating outer ring is fixedly connected to the lower side of the driven gear.

[0008] More preferably, the lifting assembly includes an electric rope reel and a steel wire rope; a plurality of electric rope reels are provided on the connecting block; a steel wire rope is wound inside each electric rope reel; and each steel wire rope passes through the connecting block and is connected to the thermal insulation curtain.

[0009] More preferably, the lifting assembly also includes a protective shell, a connecting piece and a guide ring; the protective shell is fixedly connected to the upper part of the thermal insulation curtain; a number of connecting pieces are fixedly connected to the protective shell; the steel wire rope is fixedly connected to the corresponding connecting pieces; the lower part of the collecting inner cylinder is fixedly connected to a guide ring for guiding fallen stones through a fixed block, the guide ring has a V-shaped cross-section, the guide ring is provided with a leakage hole, and the lower part of the thermal insulation curtain is fixedly connected to the guide ring.

[0010] More preferably, it also includes an extrusion ring; the extrusion ring is fixedly connected to the upper part of the protective shell, the extrusion ring is composed of an annular sheet and a plurality of extrusion strips in an annular shape, and both ends of each extrusion strip are rotatably connected to the annular sheet, and the extrusion strip is made of deformable rubber material.

[0011] More preferably, it further includes bristles; the upper part of the protective shell is provided with bristles, and the bristles are located between the extrusion ring and the thermal insulation curtain.

[0012] More preferably, a sealing block is further included; a sealing block for sealing and heat preservation is detachably provided at the lower part of the guide ring.

[0013] More preferably, the handle is provided with a rubber thread.

[0014] More preferably, all the outer holes on the same vertical line are grouped together, and each group of outer holes is distributed on different vertical lines of the rotating outer ring; a plurality of collecting chambers are arranged on the same vertical line of the collecting inner cylinder, and each collecting chamber is arranged with three inner holes.

[0015] More preferably, it also includes a collecting barrel and a horn; the sealing block is fixedly connected to the collecting barrel; a horn with an upper diameter larger than a lower diameter is fixedly connected to the upper part of the collecting barrel, and the lower diameter of the horn is smaller than the diameter of the collecting barrel.

[0016] The beneficial effects are as follows: the present invention drives the heat preservation curtain to move upwards and further wrap the protection net by winding up the steel wire rope, thereby achieving the heat preservation and sunshade effect on the sampled water sample, and preventing ultraviolet rays from damaging the microorganisms in the water sample;

[0017] The extrusion strip on the extrusion ring rolls along the protection net to squeeze the mesh of the protection net. At the same time, when the extrusion strip squeezes the protection net, the mesh of the protection net is deformed and shaken, and the sand and stones stuck in the mesh are squeezed out;

[0018] The outer holes on different vertical lines are connected with the inner holes on different collection chambers in turn, and water samples on different horizontal lines are taken to realize the sampling operation of water bodies at different depths, which is convenient for researchers to understand the situation of chemical substances polluting water bodies and make the water body detection data more representative;

[0019] The dripping water droplets are collected by sealing blocks, collection buckets and horn plates to prevent the chemical substances carried in the water droplets from dripping into the soil and contaminating the soil during the transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the environmental monitoring sampling device of the present invention;

[0021] Figure 2 It is a heat preservation state diagram of the environmental monitoring sampling device of the present invention;

[0022] Figure 3 It is a schematic diagram of the combined three-dimensional structure of the protective shell, the electric rope reel, the steel wire rope and the connecting piece of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving gear, the driven gear, the thermal insulation curtain and the guide ring combination of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the extrusion ring and bristle combination of the present invention;

[0025] Figure 6 It is a schematic diagram of the combined three-dimensional structure of the connection block, the rotating outer ring and the outer hole of the present invention;

[0026] Figure 7It is a schematic diagram of the combined three-dimensional structure of the guide ring and the rotating outer ring of the present invention;

[0027] Figure 8 It is an exploded view of the rotating outer ring and the collecting inner cylinder of the present invention;

[0028] Fig. 9 It is a cross-sectional view of the collecting inner cylinder of the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the blocking block, the collecting barrel and the horn plate combination of the present invention.

[0030] In the above drawings: 1-handling rod, 2-driving part, 3-connecting block, 4-driving gear, 5-driven gear, 6-protective net, 7-thermal insulation curtain, 8-rotating outer ring, 8001-outer hole, 9-collecting inner cylinder, 9001-inner hole, 9002-collecting chamber, 101-protective shell, 102-electric rope reel, 103-wire rope, 104-connecting part, 105-extrusion ring, 106-bristles, 107-guide ring, 10701-leakage hole, 201-blocking block, 202-collecting barrel, 203-speaker. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] like Figure 1-Figure 7 and Fig.10 As shown, a sampling device for environmental monitoring includes a hand-held rod 1, a driving member 2, a connecting block 3 and a collecting inner cylinder 9; the hand-held rod 1 is rotatably connected to the driving member 2, the driving member 2 is an electric push rod, and the hand-held rod 1 and the driving member 2 are connected through an electric rotating shaft; the driving member 2 is fixedly connected to the connecting block 3; the collecting inner cylinder 9 is fixedly connected to the connecting block 3, and the collecting inner cylinder 9 is provided with a plurality of inner holes 9001;

[0034] It also includes a protective net 6, a thermal insulation curtain 7, a rotating outer ring 8, a transmission assembly and a lifting assembly; the connecting block 3 is connected to the transmission assembly; the transmission assembly is connected to the rotating outer ring 8, and a plurality of outer holes 8001 are opened on the rotating outer ring 8, and the outer holes 8001 are staggered with the inner holes 9001, and the inner wall surface of the rotating outer ring 8 contacts the outer wall surface of the collecting inner tube 9; the transmission assembly is used to drive the rotating outer ring 8 to rotate so that the outer holes 8001 and the inner holes 9001 are connected to perform sampling; the rotating outer ring 8 is detachably connected to the protective net 6, and the protective net 6 is a hard annular net; the protective net 6 is provided with a thermal insulation curtain 7 on the outer jacket; the connecting block 3 is connected to the lifting assembly, and the lifting assembly is connected to the thermal insulation curtain 7.

[0035] The transmission assembly includes a driving gear 4 and a driven gear 5; the driving gear 4 is arranged on the connecting block 3, a rotating motor is fixedly connected to the connecting block 3, and the output end of the rotating motor is fixedly connected to the driving gear 4; the driven gear 5 is rotatably connected to the connecting block 3, and the driven gear 5 is meshed with the driving gear 4; a rotating outer ring 8 is fixedly connected to the lower side of the driven gear 5, and the driven gear 5 is driven to rotate by the rotation of the driving gear 4, thereby driving the rotating outer ring 8 to rotate, thereby realizing the opening and closing of the collecting inner cylinder 9.

[0036] The lifting assembly includes an electric rope reel 102 and a steel wire rope 103; two electric rope reels 102 are arranged on the connecting block 3; a steel wire rope 103 is wound inside each electric rope reel 102; each steel wire rope 103 passes through the connecting block 3 and is connected to the thermal insulation curtain 7.

[0037] The lifting assembly also includes a protective shell 101, a connecting piece 104 and a guide ring 107; the protective shell 101 is fixedly connected to the upper part of the thermal insulation curtain 7; two connecting pieces 104 are fixedly connected to the protective shell 101; the wire rope 103 is fixedly connected to the corresponding connecting pieces 104; the lower part of the collecting inner tube 9 is fixedly connected to the guide ring 107 through a fixed block, the cross-section of the guide ring 107 is V-shaped, the guide ring 107 is provided with a leakage hole 10701, and the lower part of the thermal insulation curtain 7 is fixedly connected to the guide ring 107.

[0038] It also includes an extrusion ring 105; the extrusion ring 105 is fixedly connected to the upper part of the protective shell 101, and the extrusion ring 105 is composed of an annular sheet and a plurality of extrusion strips in an annular shape, and both ends of each extrusion strip are rotatably connected to the annular sheet, and the extrusion strip is made of deformable rubber material.

[0039] Bristles 106 are also included; the upper part of the protective shell 101 is provided with bristles 106, and the bristles 106 are located between the extrusion ring 105 and the thermal insulation curtain 7.

[0040] It also includes a blocking block 201 ; the blocking block 201 is detachably provided at the lower part of the guide ring 107 .

[0041] The hand-held rod 1 is provided with a rubber thread for increasing friction and facilitating manual hand-held operation.

[0042] The environmental monitoring sampling equipment is referred to as this equipment below.

[0043] All parts of this equipment are treated with anti-corrosion, such as glass and polytetrafluoroethylene (PTFE) materials, and anti-corrosion spray treatment is used on the parts, so that when the equipment is sampling in the water, it will not react chemically with the chemicals in the water.

[0044] Existing sampling of water areas usually uses a cylindrical sampler. When sampling, the sampler moves to the vicinity of the sampling point by boat, ties the cylindrical sampler with a rope, and throws it into the sampling water area to take samples. If the water flow in the sampling area is turbulent, the turbulent river flow will impact sand and gravel, causing the sampler to be easily hit by sand and gravel, thereby causing the sampler to wear and tear, thereby reducing the service life of the sampler. In addition, since the external waters usually contain microorganisms, algae, volatile organic compounds, etc., after the sampling is completed, the microorganisms in the water sample are damaged by ultraviolet rays during the process of transferring the sampler from the boat to the sampling vehicle, and the volatile organic compounds in the water sample are easily volatilized under light and high temperature, resulting in the accuracy of subsequent water sample testing being affected.

[0045] After the sampling personnel carry the device to the sampling point by boat, the sampling personnel control the electric shaft connecting the hand-held rod 1 and the driving member 2 to rotate the device as shown in the figure. Figure 3In the state shown, even if the angle between the hand-held rod 1 and the driving member 2 is 90 degrees, the sampling personnel will then take out the blocking block 201 and put the device into the sampling water area. It should be noted that before the device is put into the sampling water area, the outer hole 8001 is not connected with the inner hole 9001. After the device is put into the water, the driving member 2 is controlled to drive the rotating outer ring 8 and the collecting inner cylinder 9 to reach the predetermined sampling depth, and then the driving gear 4 is driven by the rotating motor to rotate clockwise from top to bottom, and further drives the driven gear 5 meshing with the driving gear 4 to rotate, and the driven gear 5 drives the rotating outer ring 8 fixedly connected thereto to rotate, so that the outer hole 8001 is connected with the inner hole 9001, allowing the water flow to enter the collecting inner cylinder 9. After the sampling work is completed, the driving gear 4 is driven by the rotating motor to rotate, and then the driven gear 5 is driven to rotate, so that the outer hole 8001 and the inner hole 9001 are not connected, thereby sealing the collecting inner cylinder 9. Cylinder 9, seal the water sample in the collection inner cylinder 9, then control the driving part 2 to drive the rotating outer ring 8 and the collection inner cylinder 9 to move upward, and at the same time, the sampling personnel drive the hand-held rod 1 to move upward to take the device out of the water. After taking it out, control the electric rope reel 102 to reel in the wire rope 103, and further drive the protective shell 101 to move upward through the action of the wire rope 103 reeling and moving upward, so that the protective shell 101 drives the thermal insulation curtain 7 to unfold upward to wrap the rotating outer ring 8 and the collection inner cylinder 9. After the thermal insulation curtain 7 unfolds and moves upward to wrap the rotating outer ring 8 and the collection inner cylinder 9, the sampling personnel place the blocking block 201 in the leakage hole 10701 for blocking, and use the thermal insulation curtain 7 to insulate the water sample collected in the collection inner cylinder 9 and block the external sunlight, so as to avoid the microorganisms in the water sample being damaged by ultraviolet rays and the volatilization of volatile organic compounds under light and high temperature, so as to ensure the accuracy of subsequent detection of water samples. It should be noted that when the device is sampling, the thermal insulation curtain 7 is as follows underwater. Figure 4 In the state shown, in order to prevent the thermal insulation curtain 7 from being scratched or even broken by sand and stones impacted by the water flow when the thermal insulation curtain 7 is folded and located underwater, a protective shell 101 is provided. The folded thermal insulation curtain 7 is wrapped by the protective shell 101 to block the sand and stones on the outer ring surface of the protective shell 101, thereby preventing the thermal insulation curtain 7 from being scratched or even broken by sand and stones, avoiding affecting the protection of the thermal insulation curtain 7 to the water sample and increasing the service life of the thermal insulation curtain 7.

[0046] Furthermore, in order to prevent sand and stones in the water area from hitting the rotating outer ring 8 and causing wear of the rotating outer ring 8, a protective net 6 is provided to block the sand and stones that impact the rotating outer ring 8 and the collecting inner cylinder 9, so as to prevent the impacted sand and stones from wearing and scratching the rotating outer ring 8 and the collecting inner cylinder 9. At the same time, the protective net 6 also prevents sand and stones from entering the collecting inner cylinder 9 with the water flow, blocking the outer hole 8001 and the inner hole 9001, and affecting the sampling.

[0047] Furthermore, since sand and stones stuck in the mesh of the protective net 6 may be impacted by the water flow, the thermal insulation curtain 7 may be scratched or even torn by the sand and stones stuck in the mesh of the protective net 6 during the upward movement. Therefore, an extrusion ring 105 is provided. When the protective shell 101 drives the thermal insulation curtain 7 to move upward and unfold, the extrusion strip on the extrusion ring 105 on the protective shell 101 first rolls along the protective net 6 and squeezes the mesh of the protective net 6, and the sand and stones stuck in the mesh are squeezed into the cavity formed by the protective net 6 and the rotating outer ring 8, and then the sand and stones fall back into the water from the leakage hole 10701, so as to prevent the sand and stones stuck in the mesh of the protective net 6 from scratching or even torn the thermal insulation curtain 7. At the same time, the extrusion strip rolling along the protective net 6 also squeezes the protective net 6, causing the mesh of the protective net 6 to deform and shake, further facilitating the squeezing and falling of the sand and stones.

[0048] Furthermore, when the extrusion ring 105 squeezes the protective net 6 to make the sand and stones stuck on the protective net 6 fall off, the protective shell 101 is also provided with bristles 106, and the bristles 106 are located between the extrusion ring 105 and the thermal insulation curtain 7. In the process of the thermal insulation curtain 7 moving upward and unfolding, the sand and stones on the protective net 6 are first squeezed out by the extrusion bar on the extrusion ring 105, and then the bristles 106 brush and clean the protective net 6, thereby reducing the difficulty of cleaning the protective net 6 for the sampling personnel after the sampling is completed.

[0049] Example 2

[0050] On the basis of Example 1, Figure 6-Figure 9 As shown, all the outer holes 8001 located on the same vertical line are a group, and each group of outer holes 8001 is distributed on different vertical lines of the rotating outer ring 8; three collecting chambers 9002 are arranged on the same vertical line of the collecting inner cylinder 9, and three inner holes 9001 are arranged on each collecting chamber 9002.

[0051] When the device enters the turbulent river water area to take samples, the rotating motor is driven to rotate clockwise when viewed from top to bottom, driving the driving gear 4 to rotate clockwise, driving the driven gear 5 to rotate, and the driven gear 5 further drives the rotating outer ring 8 to rotate, so that the uppermost group of outer holes 8001 on the rotating outer ring 8 is connected with the inner hole 9001 of the uppermost collecting chamber 9002 of the collecting inner cylinder 9, and the water sample located on the same horizontal line as the collecting chamber 9002 of the collecting inner cylinder 9 is collected, and then the rotating outer ring 8 is continued to be driven to rotate. At this time, the uppermost group of collecting chambers 9002 are closed by the rotating outer ring 8, and the outer holes 8001 located in the middle group of the rotating outer ring 8 are connected with the collecting chamber 9 in the middle part of the collecting inner cylinder 9. 002 is connected to the inner hole 9001 to collect water samples on the same horizontal line as the inner hole 9001, and this operation is repeated. The outer holes 8001 on different vertical lines are connected to the inner holes 9001 on different collecting chambers 9002 in turn to take water samples on different horizontal lines. When sampling, the device can take water samples of different depths in the same water area at one time, thereby realizing the sampling operation of water bodies at different depths, which is convenient for researchers to understand the situation of chemical substances polluting water bodies and makes water body detection data more representative. Compared with the existing measures taken for sampling water bodies at different depths, the present invention reduces the use of isolation plates, rotating shafts and other driving structures, has a simple structure, and is convenient and fast.

[0052] Example 3

[0053] On the basis of Example 1 and Example 2, Fig.10 As shown, it also includes a collecting barrel 202 and a horn plate 203; the blocking block 201 is fixedly connected to the collecting barrel 202; a horn plate 203 with an upper diameter larger than the lower diameter is fixedly connected to the upper part of the collecting barrel 202, and the lower diameter of the horn plate 203 is smaller than the diameter of the collecting barrel 202.

[0054] After the sampling is completed, the sampler holds the rod 1 and takes the device away from the ship. Since the device has just completed sampling from the water, the water droplets on the surface of the device due to the contact with the polluted water may carry harmful chemicals. If these water droplets are allowed to drip naturally, they will inevitably cause secondary pollution to the soil passing through, affecting environmental safety. Therefore, a closing cover is provided at the lower part of the blocking block 201. When carrying the device, the sampler holds the rod 1 and places the closing cover at the bottom. When the water droplets drip, these water droplets are collected. When the sampler holds the rod 1 and tilts the present invention, the dripping water droplets can flow into the collection bucket 202 along the inclined surface of the trumpet-shaped piece. At the same time, the trumpet-shaped piece will block the water that has dripped into the collection bucket 202 in the closing cover to prevent the chemicals carried in the water droplets from dripping into the soil and polluting the soil.

[0055] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A sampling device for environmental monitoring, comprising a hand-held rod (1), a driving member (2), a connecting block (3) and a collecting inner cylinder (9); the hand-held rod (1) is rotatably connected to the driving member (2), and the hand-held rod (1) and the driving member (2) are connected via an electric rotating shaft; the driving member (2) is fixedly connected to the connecting block (3); the collecting inner cylinder (9) is fixedly connected to the connecting block (3), and the collecting inner cylinder (9) is provided with a plurality of inner holes (9001); wherein: The utility model also comprises a protective net (6), a heat preservation curtain (7), a rotating outer ring (8), a transmission component and a lifting component; the connecting block (3) is connected to the transmission component; the transmission component is connected to the rotating outer ring (8), a plurality of outer holes (8001) are formed on the rotating outer ring (8), the outer holes (8001) and the inner holes (9001) are staggered, and the inner wall surface of the rotating outer ring (8) contacts the outer wall surface of the collecting inner cylinder (9); the transmission component is used to drive the rotating outer ring (8) to rotate; the rotating outer ring (8) is detachably connected to the protective net (6) for protecting the rotating outer ring (8) and the collecting inner cylinder (9); the protective net (6) is provided with a heat preservation curtain (7) on its outer cover; the connecting block (3) is connected to the lifting component for driving the heat preservation curtain (7) to unfold, and the lifting component is connected to the heat preservation curtain (7); The lifting assembly comprises an electric rope reel (102) and a steel wire rope (103); a plurality of electric rope reels (102) are arranged on the connecting block (3); and a steel wire rope (103) is wound inside each electric rope reel (102); Each steel wire rope (103) passes through the connecting block (3) and is connected to the thermal insulation curtain (7); The lifting assembly also includes a protective shell (101), a connecting piece (104) and a guide ring (107); the upper part of the thermal insulation curtain (7) is fixedly connected to the protective shell (101); a plurality of connecting pieces (104) are fixedly connected to the protective shell (101); the steel wire rope (103) is fixedly connected to the corresponding connecting piece (104); the lower part of the collecting inner cylinder (9) is fixedly connected to a guide ring (107) for guiding falling stones through a fixing block, the guide ring (107) has a V-shaped cross section, the guide ring (107) is provided with a leakage hole (10701), and the lower part of the thermal insulation curtain (7) is fixedly connected to the guide ring (107); It also includes an extrusion ring (105); the upper part of the protective shell (101) is fixedly connected with the extrusion ring (105), the extrusion ring (105) is composed of an annular sheet and a plurality of extrusion strips in an annular shape, and both ends of each extrusion strip are rotatably connected to the annular sheet, and the extrusion strip is made of a deformable rubber material.

2. A sampling device for environmental monitoring according to claim 1, characterized in that: The transmission assembly comprises a driving gear (4) and a driven gear (5); the driving gear (4) is arranged on the connecting block (3), a rotating motor is fixedly connected to the connecting block (3), and the output end of the rotating motor is fixedly connected to the driving gear (4); the driven gear (5) is rotatably connected to the connecting block (3), and the driven gear (5) is meshed with the driving gear (4); A rotating outer ring (8) is fixedly connected to the lower side of the driven gear (5).

3. A sampling device for environmental monitoring according to claim 1, characterized in that: It also includes bristles (106); the upper part of the protective shell (101) is provided with bristles (106), and the bristles (106) are located between the extrusion ring (105) and the thermal insulation curtain (7).

4. A sampling device for environmental monitoring according to claim 1, characterized in that: It also includes a blocking block (201); the lower part of the guide ring (107) is detachably provided with a blocking block (201) for sealing and heat preservation.

5. A sampling device for environmental monitoring according to claim 1, characterized in that: The hand-held rod (1) is provided with a rubber thread.

6. A sampling device for environmental monitoring according to claim 1, characterized in that: All the outer holes (8001) located on the same vertical line form a group, and each group of outer holes (8001) is distributed on different vertical lines of the rotating outer ring (8); a plurality of collecting chambers (9002) are arranged on the same vertical line of the collecting inner cylinder (9), and each collecting chamber (9002) is arranged with three inner holes (9001).

7. A sampling device for environmental monitoring according to claim 4, characterized in that: It also comprises a collection barrel (202) and a horn plate (203); the blocking block (201) is fixedly connected to the collection barrel (202); a horn plate (203) having an upper diameter greater than a lower diameter is fixedly connected to the upper part of the collection barrel (202), and the lower diameter of the horn plate (203) is smaller than the diameter of the collection barrel (202).

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