An environmental stratified sampling device
By introducing a moving, adjusting and sinking mechanism into the river water environment sampling device, combined with a solenoid valve and a stirring assembly, the floating problem caused by the buoyancy of the water body is solved, layered sampling in the water body is achieved, and sampling accuracy and effect are improved.
Patent Information
- Application Number
- CN202411178436.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2044-08-27
AI Technical Summary
The existing river water environment sampling device has caused the sampling cylinder to float due to the buoyancy of the water body and cannot be immersed in the water body, which affects the layered sampling effect.
An environmental layered sampling device is designed, using a moving mechanism, an adjustment mechanism and a sinking mechanism, which controls water flow into the sampling cylinder through a solenoid valve, and uses airbags and stirring components to enable the sampling mechanism to sink into the water body, combined with a blocking mechanism Dispel impurities and ensure stratified sampling.
It effectively prevents the floating problem caused by buoyancy of the water body, ensures that the sampling mechanism can be immersed in the water body for layered sampling, improves the sampling accuracy and effect, and prevents impurities from clogging the water inlet pipe.
Smart Images
Figure CN118706526B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of sampling, and in particular to an environmental stratified sampling device. Background Art
[0002] Environmental sampling and testing is a key link in tracing the source of water pollution and runs through the entire life cycle of ecological restoration and management. At present, river sampling needs to be determined according to depth to meet sampling requirements for different needs.
[0003] After searching, the Chinese patent application with application publication number CN217586468U discloses a stratified sampling device for river water environment detection, including a sampling cylinder, a soft card table, a hard card table, a sampling cover, a pressing device, a cylinder sampling port, a handle and a concave table; the inner wall of the sampling cylinder is provided with the soft card table, the lower part of the soft card table is provided with a hard card table, the sampling cylinder is provided with a sampling cover, the sampling cover is provided with the pressing device, and the side of the sampling cylinder is provided with the cylinder sampling port; the utility model The sampling cylinder adopts a cylindrical cabin design, which can effectively improve space utilization, facilitate the arrangement of various components of the sampling unit, and reduce the resistance to fluid movement. The soft card table and the hard card table control the switch of the cylinder sampling port by limiting the position of the stratification plate. When not in use, it is sealed by the baffle plate. After sampling is completed, it is sealed by the sealing plate. The sampling port of each unit is arranged in different directions of the sampling cylinder to achieve more accurate stratified sampling, meeting the operation needs in a wide range, large depth and complex river water bodies.
[0004] When the existing device samples water, due to the large buoyancy of the water, when the sampling tube contacts the water, the buoyancy of the water will cause the sampling tube to float on the water surface, so that the sampling tube cannot be immersed in the water, thus affecting the stratified sampling of the water. Summary of the invention
[0005] In order to achieve the above object, the present invention adopts the following technical solutions:
[0006] An environmental stratified sampling device comprises a base, a moving mechanism is arranged on the top of the base, and a support seat is arranged on one side of the top of the moving mechanism, the top of the support seat is connected to a vertical plate by bolts, and a position of the vertical plate near the top is connected to a fixed seat by bolts on one side, a slot is provided on one side of the fixed seat, and an adjustment mechanism is provided between two opposite sides of the slot, a sampling mechanism is arranged on the bottom of the adjustment mechanism, a through opening is provided through one side of the top of the fixed seat, and a sinking mechanism is provided between the through opening and the bottom of the sampling mechanism.
[0007] Preferably, the moving mechanism includes a moving rail, a threaded rod, a first motor and two positioning rails, and the bottom of the moving rail is fixedly connected to the top of the base, two ends of the threaded rod are rotatably connected to the inner walls on both sides of the moving rail through bearings, one side of the first motor is connected to the moving rail by bolts, one end of the first motor is fixedly connected to one end of the threaded rod, the inner wall of the moving rail is slidably connected with a moving block, one side of the moving block is penetrated by a threaded opening, the threaded opening is threadedly connected to the threaded rod, the bottom of the two positioning rails are fixedly connected to the top of the base, the two positioning rails are symmetrically distributed on both sides of the moving rail, the inner walls of the two positioning rails are slidably connected with positioning blocks, and the tops of the two positioning blocks and the top of the moving block are both fixedly connected to the bottom of the support seat.
[0008] Preferably, the adjustment mechanism includes two rotating shafts, a roller and a second motor, and one end of the two rotating shafts are rotatably connected to the two sides opposite to the slot through bearings, the two sides of the roller are connected to the two rotating shafts by bolts, one side of the fixed seat is fixedly connected to the second motor, one end of the second motor is connected to one of the rotating shafts by bolts, and a pull rope is wrapped around the outer wall of the roller.
[0009] Preferably, the sampling mechanism includes a sampling cylinder, an axis rod and a plurality of partitions, and the plurality of partitions are fixed at equal distances on the inner wall of the sampling cylinder, a plurality of through holes are penetrated through the top of the sampling cylinder and the tops of the plurality of partitions, the plurality of through holes are fixedly connected to the axis rod, a plurality of water inlets are penetrated through one side of the sampling cylinder, a water inlet pipe is provided on the inner wall of the water inlet, a solenoid valve is provided at one end of the water inlet pipe, a plurality of drain outlets are penetrated through the other side of the sampling cylinder, and a sealing plug is provided on the inner wall of the drain outlet.
[0010] Preferably, the sinking mechanism comprises a rotating disk, a pin shaft, a swing plate, a push plate, an air bag and a counterweight, and one side of the rotating disk is connected to the other rotating shaft by a bolt, the pin shaft is welded on one side of the rotating disk, the outer wall of the pin shaft is rotatably sleeved with a shaft sleeve, guide openings are provided on two opposite sides of the through opening, one guide opening is provided with two opposite sides of the guide opening and the swing plate is rotatably connected through a bearing, one side of the two swing plates is connected to the shaft sleeve by a hinge, the inner walls of the two guide openings are slidably connected with guide blocks, the two guide blocks are connected to the push plate by bolts, the air bag is located between one side of the push plate and the through opening, a first cavity is provided inside the shaft rod, an air pipe is provided between the first cavity and the air bag, the air pipe is made of flexible elastic material, a second cavity is provided inside the counterweight, a plurality of exhaust holes are provided at the bottom of the second cavity, a connecting hole is penetrated through the bottom of the first cavity, the bottom of the sampling tube and the top of the second cavity, a connecting pipe is fixed between the plurality of connecting holes, a rotating hole is provided at the bottom of the second cavity, and a stirring assembly is rotatably connected to the inner wall of the rotating hole.
[0011] Preferably, the stirring assembly consists of a rotating rod, an impeller, multiple blades, a rotating block and multiple stirring blades, and the rotating rod and the rotating hole are rotatably connected through a bearing, the top of the rotating rod is fixedly connected to the bottom of the impeller, and the multiple blades are fixed on the top of the impeller in a ring shape at equal distances, the top of the rotating block is connected to the bottom of the rotating rod by bolts, and the multiple stirring blades are fixed on the side wall of the rotating block at equal distances, and the blades are arranged at an angle.
[0012] Preferably, an anti-blocking mechanism is provided on one side of the sampling mechanism, and the anti-blocking mechanism cooperates with the sinking mechanism.
[0013] Preferably, the anti-blocking mechanism includes a support rod, a rotating wheel, a plurality of rotating blades, a swing frame and a plurality of swing blades, and one end of the support rod is fixedly connected to one side of the rotating wheel, a through hole is penetrated through one side of the first cavity, and a rotation connection is formed between the through hole and the support rod through a bearing, the rotating wheel is located below the trachea, and a plurality of rotating blades are fixed on the side wall of the rotating wheel at equal distances, the support rod is in a Z-shape, and a connecting sleeve is rotatably sleeved on the outer wall of the support rod, a connecting shaft is connected between the connecting sleeve and the swing frame through a hinge, and a rotation connection is formed between the opposite sides of the swing frame and the swing blades through bearings.
[0014] Preferably, a limiting block is welded to one end of the support rod, and the outer diameter of the limiting block is larger than the inner diameter of the connecting sleeve.
[0015] The beneficial effects of the present invention are:
[0016] The present invention adopts the setting adjustment mechanism, sampling mechanism and sinking mechanism to move the device to the bank of the river when sampling the water environment. After the movement is completed, the moving mechanism is started, and the moving mechanism drives the support seat to move downward, thereby driving the adjustment mechanism and the sampling mechanism to move horizontally through the support seat. When the sampling mechanism moves to the top of the sampling water body, the adjustment mechanism is started, and the adjustment mechanism drives the sampling mechanism to move downward. When the sampling mechanism is immersed in the water body, the solenoid valve is started, and the water flow is transported to the inside of the sampling cylinder through the water inlet pipe. During this period, the turntable will rotate synchronously with the rotation of the adjustment mechanism, and the pin shaft and the shaft sleeve will rotate with the center of the turntable as the center of the circle, and the push rod will drive one end of the swing plate to move forward under the action of the pin shaft and the shaft sleeve. The airbag is subjected to double deflection. At this time, the other end of the swing plate will push the push plate to move when it deflects. The push plate will squeeze the airbag when it moves. At this time, the gas inside the airbag will be transported to the inside of the first cavity through the air pipe after being squeezed, and will be transported to the inside of the second cavity through the connecting pipe. When the gas contacts the blades, the blades will drive the impeller to rotate under the action of the airflow. When the impeller rotates, it will drive the rotating rod and the stirring blade to rotate. Therefore, the sampling mechanism can be immersed in the water body through the rotation of the stirring blade and the gravity of the counterweight block, so as to facilitate the stratified sampling of the water body, and prevent the sampling mechanism from floating on the water surface due to the buoyancy of the water body, so that the sampling mechanism cannot be immersed in the water body, which affects the stratified sampling of the water environment.
[0017] The present invention provides a sinking mechanism and an anti-blocking mechanism. When the gas inside the airbag is compressed and transported to the inside of the first cavity through the air pipe, the rotating blades will drive the support rod to rotate under the action of the airflow. Since the shape of the support rod is Z-shaped, the connecting shaft will drive the swing frame to swing back and forth up and down under the action of the support rod and the connecting sleeve, and the swing blades will deflect back and forth up and down under the action of the up and down reciprocating swing of the swing frame and the water resistance. Therefore, the impurities floating near the water inlet pipe can be dispersed by the fluctuations generated by the reciprocating deflection of the swing blades, so as to improve the stratified sampling effect of the water body by the device, and prevent impurities from floating near the water inlet pipe to block the water inlet pipe, thereby interfering with the stratified sampling of the water environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of an environmental stratified sampling device proposed by the present invention;
[0019] Figure 2 A schematic diagram of the structure of a mobile mechanism of an environmental stratified sampling device proposed by the present invention;
[0020] Figure 3 A schematic diagram of the structure of an adjustment mechanism of an environmental stratified sampling device proposed by the present invention;
[0021] Figure 4 A schematic cross-sectional view of the sampling mechanism of an environmental stratified sampling device proposed by the present invention;
[0022] Figure 5 A schematic diagram of the structure of a sinking mechanism of an environmental stratified sampling device proposed by the present invention;
[0023] Figure 6 A partial cross-sectional structural schematic diagram of an environmental stratified sampling device proposed by the present invention;
[0024] Figure 7 This is a schematic diagram of the structure of a stirring component of an environmental stratified sampling device proposed by the present invention;
[0025] Figure 8 This is a schematic diagram of the anti-blocking mechanism structure of an environmental stratified sampling device proposed by the present invention.
[0026] In the attached figure: 1, base; 2, moving mechanism; 3, support seat; 4, vertical plate; 5, fixed seat; 6, guide port; 7, sinking mechanism; 8, through port; 9, notch; 10, adjustment mechanism; 11, sampling mechanism; 12, anti-blocking mechanism; 13, positioning rail; 14, first motor; 15, positioning block; 16, moving rail; 17, threaded rod; 18, moving block; 19, second motor; 20, rotating shaft; 21, roller; 22, pull rope; 23, shaft; 24, sampling tube; 25, water inlet pipe; 26, solenoid valve; 27, drain outlet; 28 , sealing plug; 29, first cavity; 30, partition; 31, turntable; 32, pin shaft; 33, push rod; 34, push plate; 35, air bag; 36, guide block; 37, swing plate; 38, air pipe; 39, connecting pipe; 40, counterweight block; 41, stirring assembly; 42, second cavity; 43, exhaust hole; 44, impeller; 45, blade; 46, rotating rod; 47, rotating block; 48, stirring blade; 49, support rod; 50, wheel; 51, rotating blade; 52, connecting sleeve; 53, connecting shaft; 54, swing frame; 55, swing blade. DETAILED DESCRIPTION
[0027] Example 1, reference Figure 1-Figure 7A stratified environmental sampling device comprises a base 1, a moving mechanism 2 is arranged on the top of the base 1, and a support seat 3 is arranged on one side of the top of the moving mechanism 2, a vertical plate 4 is connected to the top of the support seat 3 by bolts, and a fixed seat 5 is connected to one side of the vertical plate 4 near the top by bolts, a slot 9 is provided on one side of the fixed seat 5, and an adjustment mechanism 10 is provided between the two opposite sides of the slot 9, a sampling mechanism 11 is provided at the bottom of the adjustment mechanism 10, a through opening 8 is provided through one side of the top of the fixed seat 5, and a sinking mechanism 7 is provided between the through opening 8 and the bottom of the sampling mechanism 11, so that the sampling mechanism 11 can be immersed in the interior of the water body, so as to facilitate stratified sampling of the water body, and prevent the sampling mechanism 11 from floating on the water surface due to the buoyancy of the water body, so that the sampling mechanism 11 cannot be immersed in the water body, which affects the stratified sampling of the water environment.
[0028] On the basis of the above, the moving mechanism 2 includes a moving rail 16, a threaded rod 17, a first motor 14 and two positioning rails 13, and the bottom of the moving rail 16 is fixedly connected to the top of the base 1, and the two ends of the threaded rod 17 are rotatably connected to the inner walls on both sides of the moving rail 16 through bearings. One side of the first motor 14 is connected to the moving rail 16 by bolts, and one end of the first motor 14 is fixedly connected to one end of the threaded rod 17. The inner wall of the moving rail 16 is slidably connected with a moving block 18, and a threaded opening is opened on one side of the moving block 18, which is threadedly connected to the threaded rod 17. The bottom of the two positioning rails 13 is fixedly connected to the top of the base 1, and the two positioning rails 13 are symmetrically distributed on both sides of the moving rail 16. The inner walls of the two positioning rails 13 are slidably connected with positioning blocks 15, and the tops of the two positioning blocks 15 and the tops of the moving blocks 18 are fixedly connected to the bottom of the support seat 3.
[0029] On the basis of the above, the adjustment mechanism 10 includes two rotating shafts 20, a roller 21 and a second motor 19, and one end of the two rotating shafts 20 is rotatably connected to the two sides opposite to the slot 9 through bearings, the two sides of the roller 21 are connected to the two rotating shafts 20 by bolts, one side of the fixed seat 5 is fixedly connected to the second motor 19, one end of the second motor 19 is connected to one of the rotating shafts 20 by bolts, and a pull rope 22 is wrapped around the outer wall of the roller 21.
[0030] On the basis of the above, the sampling mechanism 11 includes a sampling barrel 24, an axle rod 23 and a plurality of partitions 30, and the plurality of partitions 30 are fixed at equal distances on the inner wall of the sampling barrel 24, a plurality of through holes are penetrated through the top of the sampling barrel 24 and the tops of the plurality of partitions 30, and the plurality of through holes are fixedly connected to the axle rod 23, a plurality of water inlets are penetrated through one side of the sampling barrel 24, a water inlet pipe 25 is provided on the inner wall of the water inlet, a solenoid valve 26 is provided at one end of the water inlet pipe 25, a plurality of drain outlets 27 are penetrated through the other side of the sampling barrel 24, and a sealing plug 28 is provided on the inner wall of the drain outlet 27.
[0031] On the basis of the above, the sinking mechanism 7 includes a turntable 31, a pin shaft 32, a swing plate 37, a push plate 34, an airbag 35 and a counterweight 40, and one side of the turntable 31 is connected to the other rotating shaft 20 by bolts, the pin shaft 32 is welded to one side of the turntable 31, the outer wall of the pin shaft 32 is rotatably sleeved with a shaft sleeve, and guide openings 6 are provided on the opposite sides of the through opening 8, and the opposite sides of one guide opening 6 are rotatably connected to the swing plate 37 through bearings, and a push rod 33 is connected between one side of the two swing plates 37 and the shaft sleeve by a hinge, and the inner walls of the two guide openings 6 are slidably connected with guide blocks 36, and the two guide blocks 36 are connected to The push plates 34 are connected by bolts, and the airbag 35 is located between one side of the push plate 34 and the through port 8. A first cavity 29 is provided inside the shaft 23, and an air pipe 38 is arranged between the first cavity 29 and the airbag 35. The air pipe 38 is made of a flexible elastic material. A second cavity 42 is provided inside the counterweight 40, and a plurality of exhaust holes 43 are provided at the bottom of the second cavity 42. Connecting holes are provided through the bottom of the first cavity 29, the bottom of the sampling tube 24 and the top of the second cavity 42, and connecting pipes 39 are fixed between the plurality of connecting holes. A rotating hole is provided at the bottom of the second cavity 42, and a stirring assembly 41 is rotatably connected to the inner wall of the rotating hole.
[0032] On the basis of the above, the stirring assembly 41 consists of a rotating rod 46, an impeller 44, a plurality of blades 45, a rotating block 47 and a plurality of stirring blades 48, and the rotating rod 46 and the rotating hole are rotatably connected through a bearing, the top of the rotating rod 46 is fixedly connected to the bottom of the impeller 44, and a plurality of blades 45 are fixed to the top of the impeller 44 in an annular shape at equal distances, the top of the rotating block 47 is connected to the bottom of the rotating rod 46 by bolts, and a plurality of stirring blades 48 are fixed to the side wall of the rotating block 47 at equal distances, and the blades 45 are tilted. The turntable 31 will rotate synchronously with the rotation of the adjusting mechanism 10, and the pin shaft 32 and the shaft sleeve will rotate with the center of the turntable 31 as the center of the circle, and the push rod 33 will drive one end of the swing plate 37 to reciprocate under the action of the pin shaft 32 and the shaft sleeve. At this time, the other end of the swing plate 37 will deflect when deflected. The push plate 34 is pushed to move, and the push plate 34 will squeeze the airbag 35 when moving. At this time, the gas inside the airbag 35 will be transported to the inside of the first cavity 29 through the air pipe 38 after being squeezed, and will be transported to the inside of the second cavity 42 through the connecting pipe 39. When the gas contacts the blade 45, the blade 45 will drive the impeller 44 to rotate under the action of the airflow, and the impeller 44 will drive the rotating rod 46 and the stirring blade 48 to rotate when rotating. Therefore, the sampling mechanism 11 can be immersed in the water body through the rotation of the stirring blade 48 and the gravity of the counterweight block 40, so as to facilitate the stratified sampling of the water body, and prevent the sampling mechanism 11 from floating on the water surface due to the buoyancy of the water body, so that the sampling mechanism 11 cannot be immersed in the water body, which affects the stratified sampling of the water environment.
[0033] Example 2, reference Figure 1-Figure 8 , an environmental stratified sampling device, compared with Example 1, on the basis of Example 1, an anti-blocking mechanism 12 is provided on one side of the sampling mechanism 11, and the anti-blocking mechanism 12 is matched with the sinking mechanism 7.
[0034] On the basis of the above, the anti-blocking mechanism 12 includes a support rod 49, a rotating wheel 50, a plurality of rotating blades 51, a swing frame 54 and a plurality of swing blades 55, and one end of the support rod 49 is fixedly connected to one side of the rotating wheel 50, a through hole is opened through one side of the first cavity 29, and a rotation connection is formed between the through hole and the support rod 49 through a bearing, the rotating wheel 50 is located below the air pipe 38, and a plurality of rotating blades 51 are fixed on the side wall of the rotating wheel 50 at equal distances, the shape of the support rod 49 is Z-shaped, and a connecting sleeve 52 is rotatably sleeved on the outer wall of the support rod 49, and a connecting shaft 53 is connected between the connecting sleeve 52 and the swing frame 54 through a hinge, and the opposite sides of the swing frame 54 are rotatably connected to the swing blades 55 through bearings, and a limiting block is welded at one end of the support rod 49, and the outer diameter of the limiting block is larger than that of the connecting sleeve 52. When the gas inside the airbag 35 is compressed and transported to the inside of the first cavity 29 through the air pipe 38, the rotating blade 51 will drive the support rod 49 to rotate under the action of the airflow, and because the shape of the support rod 49 is Z-shaped, the connecting shaft 53 will drive the swing frame 54 to swing back and forth up and down under the action of the support rod 49 and the connecting sleeve 52, and the swing blade 55 will deflect back and forth up and down under the action of the up and down reciprocating swing of the swing frame 54 and the water resistance, so that the impurities floating near the water inlet pipe can be dispersed by the fluctuations generated by the reciprocating deflection of the swing blade 55, so as to improve the stratified sampling effect of the water body by the device, and prevent impurities from floating near the water inlet pipe 25 to block the water inlet pipe 25, thereby interfering with the stratified sampling of the water environment.
[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An environmental stratified sampling device, comprising a base (1), It is characterized in that A moving mechanism (2) is arranged on the top of the base (1), and a support seat (3) is arranged on one side of the top of the moving mechanism (2); the top of the support seat (3) is connected to a vertical plate (4) by bolts, and a fixed seat (5) is connected to one side of the vertical plate (4) near the top by bolts; a notch (9) is provided on one side of the fixed seat (5), and an adjustment mechanism (10) is provided between two opposite sides of the notch (9); a sampling mechanism (11) is arranged on the bottom of the adjustment mechanism (10); a through opening (8) is provided through one side of the top of the fixed seat (5), and a sinking mechanism (7) is provided between the through opening (8) and the bottom of the sampling mechanism (11); the adjustment mechanism (10) comprises two rotating shafts (20), a roll The roller (21) and the second motor (19) are connected to each other in rotation by bearings on one end of the two rotating shafts (20) and on both sides opposite to the notch (9). The two sides of the roller (21) are connected to the two rotating shafts (20) by bolts. One side of the fixing seat (5) is fixedly connected to the second motor (19). One end of the second motor (19) is connected to one of the rotating shafts (20) by bolts. A pull rope (22) is wound around the outer wall of the roller (21). The sampling mechanism (11) comprises a sampling barrel (24), a shaft (23) and a plurality of partitions (30). The plurality of partitions (30) are fixed to the inner wall of the sampling barrel (24) at equal distances. A plurality of through holes are formed through the top of the sampling barrel (24) and the tops of the plurality of partitions (30). A plurality of through holes are fixedly connected to the shaft (23); a plurality of water inlets are formed through one side of the sampling tube (24); a water inlet pipe (25) is provided on the inner wall of the water inlet; a solenoid valve (26) is provided at one end of the water inlet pipe (25); a plurality of drain ports (27) are formed through the other side of the sampling tube (24); a sealing plug (28) is provided on the inner wall of the drain port (27); the sinking mechanism (7) comprises a rotating disk (31), a pin shaft (32), a swing plate (37), a push plate (34), an air bag (35) and a counterweight (40); one side of the rotating disk (31) is connected to another rotating shaft (20) by bolts; the pin shaft (32) is welded to one side of the rotating disk (31); a shaft sleeve is rotatably sleeved on the outer wall of the pin shaft (32); Guide openings (6) are provided on opposite sides of the opening (8), and opposite sides of one of the guide openings (6) are rotatably connected to the swing plate (37) via bearings. A push rod (33) is connected between one side of the swing plate (37) and the shaft sleeve via a hinge. Guide blocks (36) are slidably connected to the inner walls of the two guide openings (6), and the two guide blocks (36) are connected to the push plate (34) via bolts. The airbag (35) is located between one side of the push plate (34) and the opening (8). A first cavity (29) is provided inside the shaft rod (23), and an air pipe (38) is provided between the first cavity (29) and the airbag (35). The air pipe (38) is made of a flexible elastic material. A second cavity (42) is provided inside the counterweight (40).A plurality of exhaust holes (43) are provided at the bottom of the second cavity (42); a connection hole is provided through the bottom of the first cavity (29), the bottom of the sampling tube (24) and the top of the second cavity (42); a connection tube (39) is fixed between the plurality of connection holes; a rotating hole is provided at the bottom of the second cavity (42); a stirring assembly (41) is rotatably connected to the inner wall of the rotating hole; the stirring assembly (41) comprises a rotating rod (46), an impeller (44), a plurality of blades (45), a rotating block (47) and a plurality of stirring blades (48); the rotating rod (46) and the rotating hole are rotatably connected via a bearing; the rotating rod (46) The top is fixedly connected to the bottom of the impeller (44), a plurality of blades (45) are fixed to the top of the impeller (44) in an annular shape at equal distances, the top of the rotating block (47) is connected to the bottom of the rotating rod (46) by bolts, a plurality of stirring blades (48) are fixed to the side wall of the rotating block (47) at equal distances, the blades (45) are arranged obliquely, and the push rod (33) drives one end of the swing plate (37) to reciprocate under the action of the pin shaft (32) and the shaft sleeve. At this time, the other end of the swing plate (37) pushes the push plate (34) to move when deflecting, and the push plate (34) squeezes the air bag (35) when moving.
2. An environmental stratified sampling device according to claim 1, It is characterized in that The moving mechanism (2) comprises a moving rail (16), a threaded rod (17), a first motor (14) and two positioning rails (13), wherein the bottom of the moving rail (16) is fixedly connected to the top of the base (1), the two ends of the threaded rod (17) are rotationally connected to the inner walls of the moving rail (16) on both sides opposite to each other via bearings, one side of the first motor (14) is connected to the moving rail (16) via bolts, one end of the first motor (14) is fixedly connected to one end of the threaded rod (17), and the moving rail (16) is fixedly connected to the first motor (14). The inner wall of the movable rail (16) is slidably connected to a movable block (18), a threaded opening is formed through one side of the movable block (18), the threaded opening is threadedly connected to the threaded rod (17), the bottoms of the two positioning rails (13) are fixedly connected to the top of the base (1), the two positioning rails (13) are symmetrically distributed on both sides of the movable rail (16), the inner walls of the two positioning rails (13) are slidably connected to the positioning blocks (15), the tops of the two positioning blocks (15) and the top of the movable block (18) are fixedly connected to the bottom of the support seat (3).
3. An environmental stratified sampling device according to claim 1, It is characterized in that An anti-blocking mechanism (12) is provided on one side of the sampling mechanism (11), and the anti-blocking mechanism (12) cooperates with the sinking mechanism (7).
4. An environmental stratified sampling device according to claim 3, It is characterized in that The anti-blocking mechanism (12) comprises a support rod (49), a rotating wheel (50), a plurality of rotating blades (51), a swing frame (54) and a plurality of swing blades (55), wherein one end of the support rod (49) is fixedly connected to one side of the rotating wheel (50), a through hole is formed through one side of the first cavity (29), and a rotational connection is formed between the through hole and the support rod (49) via a bearing, the rotating wheel (50) is located below the air pipe (38), and the plurality of rotating blades (51) are fixed on the side wall of the rotating wheel (50) at equal distances, the support rod (49) is in a Z-shape, and a connecting sleeve (52) is rotatably sleeved on the outer wall of the support rod (49), a connecting shaft (53) is connected between the connecting sleeve (52) and the swing frame (54) via a hinge, and opposite sides of the swing frame (54) are rotationally connected to the swing blades (55) via bearings.
5. An environmental stratified sampling device according to claim 4, It is characterized in that A limiting block is welded to one end of the support rod (49), and the outer diameter of the limiting block is greater than the inner diameter of the connecting sleeve (52).