Multi-point sampling device for environment detection

Abstract

The invention discloses an environment detection multi-point sampling device in the technical field of environment detection, the environment detection multi-point sampling device comprises a base, a hydraulic telescopic rod, a moving frame and a sampling mechanism, the sampling mechanism comprises an overhanging assembly, an adjusting assembly, a middle seat and two adjusting seats, and the middle seat and the adjusting assemblies are respectively provided with a lifting assembly, a first sampling assembly and a second sampling assembly; the sampling structures are arranged on the middle base and the two adjusting bases, multi-point sampling is achieved, and sampling of the upper layer and the lower layer of a water body at the same position is achieved at each sampling point through the first sampling assembly and the second sampling assembly which are arranged up and down; the position of the second sampling assembly is adjusted through the lifting assembly, so that the water body lower-layer sampling depth is adjusted according to sampling requirements of different water bodies; the moving frame is moved outwards through the hydraulic telescopic rod, the moving range of the sampling mechanism is enlarged through the overhanging assembly, and the positions of the two adjusting seats are adjusted through the adjusting assembly, so that the sampling range is enlarged.

Description

Technical Field

[0001] The invention relates to the technical field of environmental detection, in particular to an environmental detection multi-point sampling device. Background Art

[0002] In the process of environmental testing, it is necessary to sample water and air, etc., and test the samples to obtain corresponding environmental data, etc. When sampling water, in order to make the sampling data more comprehensive, it is usually necessary to sample different locations of the water.

[0003] The patent publication number is CN220893882U, which is an environmental detection multi-point sampling device. Its structure mainly includes a workbench and a support plate. The support plate is connected with a fixing part through a cylinder 1 and a telescopic rod 1. The bottom end of the fixing part is provided with a cylinder 2, a telescopic rod 2 and a sampling component 1, a sampling component 2 and a sampling component 3 in sequence. When sampling, water samples of different depths can be collected, and the required collection depth point can be adjusted.

[0004] However, the above device can only sample different depths at a single location. When sampling is required at different locations in the water body, the device needs to be moved multiple times, resulting in inconvenient sampling operations.

[0005] Based on this, the present invention designs an environment detection multi-point sampling device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-point sampling device for environmental detection to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An environmental detection multi-point sampling device comprises a base, a device box is arranged on one side of the top of the base, a mobile frame is arranged on the other side, and a sampling mechanism is arranged on the mobile frame;

[0009] Two inclined and parallel hydraulic telescopic rods are rotatably connected between the bottom of the mobile frame and the top of the base, and two parallel rotating rods are rotatably connected between the left and right ends of the bottom of the mobile frame and the top of the base, and the top ends of the four rotating rods are located on the same horizontal plane, and the bottom ends of the four rotating rods are located on the same horizontal plane;

[0010] The sampling mechanism includes a middle seat located in the middle of the front side of the mobile frame, and the middle seat is connected to the mobile frame through an extension component, two parallel fixed rods are symmetrically fixed on the left and right sides of the middle seat, and adjustment components are respectively arranged between the two fixed rods on the left and between the two fixed rods on the right, and the outer ends of the two adjustment components are both provided with adjustment seats;

[0011] A first sampling assembly is provided at the bottom of the middle seat and the adjusting seat, a second sampling assembly is provided below the first sampling assembly, a lifting assembly is provided between the middle seat and the adjusting seat, and the bottom end of the lifting assembly passes through the first sampling assembly and is connected to the second sampling assembly;

[0012] The first sampling component includes a fixed circular plate, bosses are symmetrically fixed on both sides of the fixed circular plate, two vertical fixed shafts are symmetrically fixed on the bosses, and the top ends of the fixed shafts are fixedly connected to the bottom surfaces of the corresponding intermediate seats or adjustment seats. The second sampling component includes a movable circular plate, and the movable circular plate is connected to the lifting component, bosses are symmetrically fixed on both sides of the movable circular plate, a vertical movable shaft is fixed in the middle of the top surfaces of the bosses, the top ends of the movable shafts pass through the bosses on the fixed circular plate and are slidably connected to the bosses, multiple vertical sampling tubes are evenly arranged on the fixed circular plate and the movable circular plate along the circumferential direction, a water inlet is arranged in the middle of the bottom of the sampling tube, and a sealing component is connected to the top of the sampling tube.

[0013] Preferably, the adjusting assembly includes an adjusting block located between two fixed rods, the adjusting seat is fixed to the outer end of the adjusting block, a sliding hole is provided in the fixed rod, sliding rods are symmetrically fixed on both sides of the inner end of the adjusting block, and the sliding rods are slidably connected to the sliding holes, a threaded hole is provided in the middle of the adjusting block, and a second screw is threadedly connected, the second screw is rotatably connected to the side wall of the middle seat, a cavity is provided inside the middle seat, the end of the second screw extends into the interior of the middle seat, and a third bevel gear is fixed, a fourth bevel gear is meshed between the two third bevel gears, and the fourth bevel gear is connected to a motor.

[0014] Preferably, the extension component includes two fixed cylinders symmetrically fixed on the movable frame, a first threaded cylinder is rotatably connected in the fixed cylinder, a first screw is threadably connected in the first threaded cylinder, both ends of the two first screws extend out of the corresponding first threaded cylinders, and the intermediate seat is fixed to one end of the two first screws, a worm gear is fixed on the first threaded cylinder, a worm is meshed with the bottom of the worm gear, the worm is rotatably connected to the movable frame, and a first bevel gear is fixed on the inner end, a second bevel gear is meshed between the two first bevel gears, the second bevel gear is connected to a motor, and the motor is fixed to the bottom of the movable frame.

[0015] Preferably, two wheel frames are symmetrically fixed on the inner side of the movable frame, and a first limiting wheel is rotatably connected to the wheel frame, and the first limiting wheel is located at the top of the first screw rod, and the top and bottom of the outer end of the fixed rod are respectively rotatably connected to the second limiting wheels, and the adjustment block on the corresponding side is located between the two second limiting wheels.

[0016] Preferably, the sealing assembly includes an annular sealing plate located above the multiple sampling barrels, the bottom of the annular sealing plate is connected to the fixed circular plate or the movable circular plate through a movable structure, the top of the annular sealing plate is provided with a spring cavity corresponding to the position of each sampling barrel, a spring plate is provided in the spring cavity, a spring is connected between the top of the spring plate and the top of the spring cavity, and two vertical spring rods are fixed to the bottom surface of the spring plate, the bottom ends of the two spring rods pass through the annular sealing plate, extend into the sampling barrel, and are fixed with sealing plugs, and the position of the sealing plug corresponds to the position of the water inlet.

[0017] Preferably, the movable structure includes a plurality of vertical movable rods uniformly fixed at the bottom of the annular sealing plate along the circumferential direction, the positions of the movable rods are staggered with the positions of the sampling tube, and the bottoms of the fixed circular plate and the movable circular plate are provided with movable cavities corresponding to the positions of each movable rod, the bottom ends of the movable rods extend into the movable cavities, and a movable plate is fixed thereto, the top surface of the movable plate is connected to the top surface of the movable cavity through a spring, and a magnet block is fixed to the bottom surface of the movable plate, and an electromagnet is fixed to the bottom of the movable cavity, the electromagnet is electrically connected to a power supply and a switch, and is correspondingly connected to the magnet block.

[0018] Preferably, the lifting assembly includes a vertical second threaded barrel, the second threaded barrel is rotatably connected to the center of the corresponding intermediate seat and the adjustment seat, and a vertical lifting screw is threadedly connected in the second threaded barrel, the bottom end of the second threaded barrel is rotatably connected to the center of the fixed circular plate, and the bottom end of the lifting screw extends out of the second threaded barrel and is fixed to the center of the movable circular plate;

[0019] A fifth bevel gear is fixed to the bottom of the second threaded cylinder, a transmission assembly is connected between the fifth bevel gear on the adjustment seat and the fifth bevel gear on the middle seat, and a sixth bevel gear is meshed on one side of the fifth bevel gear on the middle seat, the sixth bevel gear is connected to a motor, and the motor is fixed to the bottom of the middle seat.

[0020] Preferably, the transmission assembly includes a transmission cylinder and a transmission shaft slidably connected to the inside of the transmission cylinder, a strip groove is provided on the transmission shaft, a sliding bar is correspondingly fixed on the inner wall of the transmission cylinder, and the sliding bar is slidably connected to the strip groove, one end of the transmission shaft extends out of the transmission cylinder and is rotatably connected to the bottom of the middle seat, a seventh bevel gear is fixed to the protruding end of the transmission shaft, and the seventh bevel gear is meshed with the fifth bevel gear at the bottom of the middle seat, the end of the transmission cylinder away from the middle seat is rotatably connected to the bottom surface of the adjustment seat, and an eighth bevel gear is fixed to it, and the eighth bevel gear is meshed with the fifth bevel gear at the bottom of the adjustment seat.

[0021] Preferably, a positioning assembly is provided in the middle of the mobile frame, and the positioning assembly includes a positioning pressure plate located above the mobile frame, vertical positioning rods are fixed on both sides of the bottom of the positioning pressure plate, the bottom ends of the positioning rods are set to a pointed cone shape, and a horizontal limiting hole is provided in the middle, a vertical third screw is rotatably connected to the middle of the top of the mobile frame, a lifting block is threadedly connected to the third screw, and inclined connecting rods are respectively threadedly connected to the two sides of the lifting block, a slider is rotatably connected to the bottom end of the connecting rod, the slider is slidably connected to the top surface of the mobile frame, and a horizontal limiting shaft is fixed to the outer end, and a guide slide is provided at the position of the limiting shaft corresponding to the top of the mobile frame, one end of the limiting shaft passes through the guide slide and extends into the limiting hole of the positioning rod.

[0022] Preferably, the sampling cylinder is rotatably connected to the corresponding fixed circular plate or movable circular plate, and a plurality of blades are evenly fixed on the lower portion of the outer side wall of the sampling cylinder along the circumferential direction.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention realizes multi-point sampling by arranging sampling structures on the middle seat and the two adjustment seats, and realizes sampling of the upper and lower layers of the water body at the same position at each sampling point through the first sampling component and the second sampling component arranged up and down, so that sampling is more convenient and comprehensive;

[0025] 2. The present invention can adjust the position of the second sampling assembly by arranging a lifting assembly on the middle seat and the two adjustment seats, thereby adjusting the sampling depth of the lower layer of the water body, so as to make timely adjustments according to the sampling needs of different water bodies, thereby improving the applicable scope and flexibility of sampling;

[0026] 3. The present invention uses a hydraulic telescopic rod to enable the mobile frame to drive the sampling mechanism to move outward and downward, increases the moving range of the sampling mechanism through the extension component, and adjusts the positions of the two adjustment seats and the structure thereon through the adjustment component, thereby expanding the sampling range;

[0027] 4. The present invention increases the number of samples at the same sampling point by respectively arranging a plurality of sampling tubes in the first sampling component and the second sampling component, thereby facilitating subsequent detection and other operations, and seals the water inlet and the top end of the sampling tube through a sealing component to separate the sample from the external water body, thereby realizing the sampling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1It is a schematic diagram of the structure of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0031] Figure 3 for Figure 1 Schematic diagram of the structure at B in the middle;

[0032] Figure 4 for Figure 1 Schematic diagram of the structure at C in the middle;

[0033] Figure 5 It is a structural schematic diagram of a fixed circular plate of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the movable circular plate of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the worm gear of the present invention;

[0036] Figure 8 It is a schematic diagram of the internal structure of the middle seat of the present invention;

[0037] Fig. 9 It is a schematic diagram of the bottom structure of the intermediate seat and the adjustment seat of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the sampling tube of the present invention;

[0039] Fig.11 It is a structural schematic diagram of the movable cavity of the present invention;

[0040] Fig.12 It is a structural schematic diagram of the positioning rod of the present invention.

[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0042] 100-base, 101-equipment box;

[0043] 200-mobile frame, 201-hydraulic telescopic rod, 202-rotating rod, 203-fixed cylinder, 204-first threaded cylinder, 205-first screw rod, 206-first limiting wheel, 207-wheel frame, 208-worm wheel, 209-worm, 210-first bevel gear, 211-second bevel gear;

[0044] 300-middle seat, 301-fixed rod, 302-second screw rod, 303-second limiting wheel, 304-sliding hole, 305-third bevel gear, 306-fourth bevel gear;

[0045] 400-adjusting seat, 401-fixed circular plate, 402-movable circular plate, 403-adjusting block, 404-sliding rod, 405-boss, 406-fixed shaft, 407-movable shaft, 408-movable cavity, 409-electromagnet;

[0046] 500-lifting screw, 501-second threaded cylinder, 502-fifth bevel gear, 503-sixth bevel gear, 504-seventh bevel gear, 505-eighth bevel gear, 506-transmission shaft, 507-transmission cylinder;

[0047] 600-sampling tube, 601-blade, 602-annular sealing plate, 603-spring chamber, 604-spring plate, 605-spring rod, 606-sealing plug, 607-moving rod, 608-moving plate, 609-magnet block;

[0048] 700-positioning rod, 701-positioning pressure plate, 702-limiting shaft, 703-guide slide, 704-sliding block, 705-connecting rod, 706-lifting block, 707-third screw. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0050] Embodiment 1

[0051] Please refer to the accompanying drawings, the present invention provides a technical solution:

[0052] A multi-point sampling device for environmental detection includes a base 100, a device box 101 is provided on one side of the top of the base 100, a mobile frame 200 is provided on the other side, a sampling mechanism is provided on the mobile frame 200, and the device box 101 can be used to place related instruments and equipment such as sampling detection and sample storage containers, etc.;

[0053] Two inclined and parallel hydraulic telescopic rods 201 are rotatably connected between the bottom of the mobile frame 200 and the top of the base 100, and two parallel rotating rods 202 are rotatably connected between the left and right ends of the bottom of the mobile frame 200 and the top of the base 100, and the top ends of the four rotating rods 202 are located on the same horizontal plane, and the bottom ends of the four rotating rods 202 are located on the same horizontal plane;

[0054] The sampling mechanism includes a middle seat 300 located in the middle of the front side of the mobile frame 200, and the middle seat 300 is connected to the mobile frame 200 through an extension component. Two parallel fixed rods 301 are symmetrically fixed on the left and right sides of the middle seat 300, and adjustment components are respectively arranged between the two fixed rods 301 on the left and between the two fixed rods 301 on the right, and the outer ends of the two adjustment components are each provided with an adjustment seat 400;

[0055] A first sampling assembly is disposed at the bottom of the intermediate seat 300 and the adjustment seat 400, a second sampling assembly is disposed below the first sampling assembly, a lifting assembly is disposed between the intermediate seat 300 and the adjustment seat 400, and the bottom end of the lifting assembly passes through the first sampling assembly and is connected to the second sampling assembly;

[0056] The first sampling component includes a fixed circular plate 401, and bosses 405 are symmetrically fixed on both sides of the fixed circular plate 401. Two vertical fixed shafts 406 are symmetrically fixed on the bosses 405, and the top ends of the fixed shafts 406 are fixedly connected to the bottom surfaces of the corresponding intermediate seats 300 or the adjustment seats 400. The second sampling component includes a movable circular plate 402, and the movable circular plate 402 is connected to the lifting component. Bosses 405 are symmetrically fixed on both sides of the movable circular plate 402, and a vertical movable shaft 407 is fixed in the middle of the top surface of the boss 405. The top end of the movable shaft 407 passes through the bosses 405 on the fixed circular plate 401 and is slidably connected to the bosses 405. Multiple vertical sampling barrels 600 are evenly arranged along the circumferential direction on the fixed circular plate 401 and the movable circular plate 402. A water inlet is arranged in the middle of the bottom of the sampling barrel 600, and a sealing component is connected to the top of the sampling barrel 600.

[0057] When sampling water, the sampling device is placed at a suitable position, and the mobile frame 200 is moved by extending the hydraulic telescopic rod 201, and the mobile frame 200 is kept horizontal and moves downward outside by rotating and limiting the rotating rod 202, thereby driving the sampling mechanism to move toward the water body. The position of the intermediate seat 300 and the adjustment seat 400 relative to the mobile frame 200 can be adjusted by the extension component to expand the sampling range of the device;

[0058] The adjustment seats 400 on both sides are moved outward by adjusting the assembly, and the distance between the adjustment seat 400 and the middle seat 300 is adjusted, thereby adjusting the distance between the two sampling points. Multi-point sampling is achieved through the sampling assemblies on the middle seat 300 and the two adjustment seats 400. The upper and lower positions of the water body are sampled at the same sampling point by the first sampling assembly and the second sampling assembly. The height position of the second sampling assembly can be adjusted by the lifting assembly so as to sample water bodies at different depths, thereby improving the scope of application.

[0059] When sampling is performed through the first sampling component and the second sampling component, the upper layer of the water body is sampled by the sampling tube 600 on the fixed circular plate 401, and the lower layer of the water body is sampled by the sampling tube 600 on the movable circular plate 402. The water sample enters the sampling tube 600 through the water inlet at the bottom of the sampling tube 600, and then the water inlet and the top of the sampling tube 600 are sealed by the sealing component to realize the sampling operation. After the sampling is completed, the sampling tube 600 and other structures are returned to the base 100 to facilitate the removal, transfer and detection of the water sample in the sampling tube 600.

[0060] Among them, the sealing assembly includes an annular sealing plate 602 located above multiple sampling tubes 600, the bottom of the annular sealing plate 602 is connected to the fixed circular plate 401 or the movable circular plate 402 through a movable structure, and the top of the annular sealing plate 602 is provided with a spring cavity 603 corresponding to the position of each sampling tube 600, and a spring plate 604 is provided in the spring cavity 603. A spring is connected between the top of the spring plate 604 and the top of the spring cavity 603, and two vertical spring rods 605 are fixed to the bottom surface of the spring plate 604. The bottom ends of the two spring rods 605 pass through the annular sealing plate 602, extend into the sampling tube 600, and are fixed with a sealing plug 606, and the position of the sealing plug 606 corresponds to the position of the water inlet.

[0061] When the sampling tube 600 needs to be sealed, the annular sealing plate 602 is moved downward by the movable structure, and the sealing plug 606 is first moved to the bottom end of the sampling tube 600 under the action of the spring plate 604 and the spring and other structures to seal the water inlet, and then the annular sealing plate 602 is pressed tightly against the top ends of the multiple sampling tubes 600 to seal the top ends of the sampling tubes 600. Therefore, after the sampling is completed, both ends of the sampling tube 600 are sealed to separate the water sample from the external water body.

[0062] Among them, the moving structure includes a plurality of vertical moving rods 607 evenly fixed at the bottom of the annular sealing plate 602 along the circumferential direction, the position of the moving rod 607 is staggered with the position of the sampling tube 600, and a moving cavity 408 is provided at the bottom of the fixed circular plate 401 and the moving circular plate 402 corresponding to the position of each moving rod 607, the bottom end of the moving rod 607 extends into the moving cavity 408, and a moving plate 608 is fixed thereto, the top surface of the moving plate 608 is connected to the top surface of the moving cavity 408 through a spring, and a magnet block 609 is fixed to the bottom surface of the moving plate 608, and an electromagnet 409 is fixed to the bottom of the moving cavity 408, the electromagnet 409 is electrically connected to the power supply and the switch, and is correspondingly connected to the magnet block 609.

[0063] When it is necessary to seal the sampling tube 600, the electromagnet 409 is energized to attract the magnet block 609, so that the movable plate 608 stretches the spring and moves downward, thereby driving the annular sealing plate 602 to move downward and press tightly against the top of the sampling tube 600, and the sealing plug 606 is located at the water inlet to seal the top and bottom of the sampling tube 600, and the magnet block 609 and the electromagnet 409 are attracted and fixed after contact, so that the positions of the annular sealing plate 602 and the sealing plug 606 are fixed to ensure the sealing effect.

[0064] The lifting assembly includes a vertical second threaded barrel 501, which is rotatably connected to the center of the corresponding intermediate seat 300 and the adjustment seat 400, and a vertical lifting screw 500 is threadedly connected in the second threaded barrel 501, and the bottom end of the second threaded barrel 501 is rotatably connected to the center of the fixed circular plate 401, and the bottom end of the lifting screw 500 extends out of the second threaded barrel 501 and is fixed to the center of the movable circular plate 402;

[0065] A fifth bevel gear 502 is fixed to the bottom of the second threaded cylinder 501, a transmission assembly is connected between the fifth bevel gear 502 on the adjustment seat 400 and the fifth bevel gear 502 on the intermediate seat 300, and a sixth bevel gear 503 is meshed on one side of the fifth bevel gear 502 on the intermediate seat 300, the sixth bevel gear 503 is connected to a motor, and the motor is fixed to the bottom of the intermediate seat 300.

[0066] When the height position of the second sampling component needs to be adjusted, the sixth bevel gear 503 is rotated by the motor drive, and the second threaded cylinder 501 on the intermediate seat 300 and the adjustment seat 400 is rotated at the same time through the transmission of the sixth bevel gear 503, the fifth bevel gear 502 and the transmission assembly, and the lifting screw 500 and the moving circular plate 402 are limited and guided by the moving shaft 407 and other structures, so that they move under the rotation of the second threaded cylinder 501 to adjust the height position of the second sampling component.

[0067] Among them, the transmission assembly includes a transmission cylinder 507 and a transmission shaft 506 slidably connected to the inside of the transmission cylinder 507, a strip groove is provided on the transmission shaft 506, a sliding bar is correspondingly fixed on the inner wall of the transmission cylinder 507, and the sliding bar is slidably connected to the strip groove, one end of the transmission shaft 506 extends out of the transmission cylinder 507 and is rotatably connected to the bottom of the intermediate seat 300, the protruding end of the transmission shaft 506 is fixed with the seventh bevel gear 504, the seventh bevel gear 504 is meshed with the fifth bevel gear 502 at the bottom of the intermediate seat 300, the end of the transmission cylinder 507 away from the intermediate seat 300 is rotatably connected to the bottom surface of the adjustment seat 400, and an eighth bevel gear 505 is fixed, and the eighth bevel gear 505 is meshed with the fifth bevel gear 502 at the bottom of the adjustment seat 400.

[0068] When the fifth bevel gear 502 of the middle seat 300 rotates, it drives the seventh bevel gears 504 on both sides to rotate, and then through the action of the sliding bar and the strip groove, the transmission shaft 506 drives the transmission cylinder 507 and the eighth bevel gear 505 to rotate, and the fifth bevel gear 502 on the adjustment seat 400 is driven to rotate through the eighth bevel gear 505, thereby realizing the transmission of the lifting components on the middle seat 300 and the adjustment seat 400, and enabling the three lifting components to move simultaneously.

[0069] Embodiment 2

[0070] The structure of this embodiment is basically the same as that of the first embodiment, except that the adjustment component includes an adjustment block 403 located between the two fixed rods 301, the adjustment seat 400 is fixed to the outer end of the adjustment block 403, a sliding hole 304 is provided in the fixed rod 301, sliding rods 404 are symmetrically fixed on both sides of the inner end of the adjustment block 403, and the sliding rods 404 are slidably connected to the sliding holes 304, a threaded hole is provided in the middle of the adjustment block 403, and a second screw rod 302 is threadedly connected, the second screw rod 302 is rotatably connected to the side wall of the middle seat 300, a cavity is provided inside the middle seat 300, the end of the second screw rod 302 extends into the interior of the middle seat 300, and a third bevel gear 305 is fixed, a fourth bevel gear 306 is meshed between the two third bevel gears 305, and the fourth bevel gear 306 is connected to a motor.

[0071] When it is necessary to adjust the position of the adjustment seats 400 on both sides, the fourth bevel gear 306 is driven by the motor, and the second screws 302 on both sides are rotated simultaneously through the transmission of the third bevel gear 305 and the fourth bevel gear 306, so that the adjustment block 403 moves under the guidance of the sliding rod 404 and the sliding hole 304, and the position of the adjustment seats 400 on both sides is adjusted at the same time.

[0072] The extension component includes two fixed cylinders 203 symmetrically fixed on the mobile frame 200, a first threaded cylinder 204 is rotatably connected in the fixed cylinder 203, a first screw 205 is threadedly connected in the first threaded cylinder 204, both ends of the two first screws 205 extend out of the corresponding first threaded cylinders 204, and the intermediate seat 300 is fixed to one end of the two first screws 205, a worm gear 208 is fixed on the first threaded cylinder 204, a worm 209 is meshed at the bottom of the worm gear 208, the worm 209 is rotatably connected to the mobile frame 200, and a first bevel gear 210 is fixed at the inner end, a second bevel gear 211 is meshed between the two first bevel gears 210, the second bevel gear 211 is connected to a motor, and the motor is fixed to the bottom of the mobile frame 200.

[0073] After the movable frame 200 drives the sampling mechanism to move outward, if it is necessary to further move the sampling mechanism outward, the second bevel gear 211 can be driven by the motor, and the two worm gears 209 can be rotated through the transmission of the first bevel gear 210 and the second bevel gear 211, so that the worm gear 208 drives the first threaded cylinder 204 to rotate, and drives the two first screws 205 to drive the intermediate seat 300 and the structure thereon to move outward, adjust the extended position, and expand the use range of the sampling mechanism.

[0074] Embodiment 3

[0075] The structure of this embodiment is basically the same as that of the second embodiment, except that two wheel frames 207 are symmetrically fixed to the inner side of the mobile frame 200, and the wheel frames 207 are rotatably connected with the first limiting wheel 206, and the first limiting wheel 206 is located at the top of the first screw 205, and the inner section of the first screw 205 is limited by the first limiting wheel 206. When the first screw 205 moves a large distance outward relative to the first threaded barrel 204, the sampling mechanism will cause a large force on the first threaded barrel 204 and other structures through the first screw 205, and the first limiting wheel 206 plays a downward role on the first screw 205. The pressure limiting function ensures that the first screw 205 is in a horizontal position, improves the position stability of the first screw 205, and avoids damage to structures such as the first screw 205 and the first threaded cylinder 204. The top and bottom of the outer end of the fixed rod 301 are rotatably connected with the second limiting wheels 303 respectively, and the adjustment block 403 on the corresponding side is located between the two second limiting wheels 303. When the adjustment block 403 extends outward for a large distance, the second limiting wheels 303 on the upper and lower sides provide further limiting effect for the adjustment block 403, so that it remains horizontal, reducing damage to structures such as the lifting screw 500 and the sliding rod 404.

[0076] Embodiment 4

[0077] The structure of this embodiment is basically the same as that of the first embodiment, except that a positioning assembly is provided in the middle of the mobile frame 200, and the positioning assembly includes a positioning pressure plate 701 located above the mobile frame 200, vertical positioning rods 700 are fixed on both sides of the bottom of the positioning pressure plate 701, the bottom end of the positioning rod 700 is set to a pointed cone shape, and a horizontal limiting hole is provided in the middle, a vertical third screw 707 is rotatably connected to the middle of the top of the mobile frame 200, a lifting block 706 is threadedly connected to the third screw 707, and inclined connecting rods 705 are respectively threadedly connected to the two sides of the lifting block 706, a slider 704 is rotatably connected to the bottom end of the connecting rod 705, the slider 704 is slidably connected to the top surface of the mobile frame 200, and a horizontal limiting shaft 702 is fixed to the outer end, and a guide slide 703 is provided at the position of the limiting shaft 702 at the top of the mobile frame 200, and one end of the limiting shaft 702 passes through the guide slide 703 and extends into the limiting hole of the positioning rod 700.

[0078] When the movable frame 200 moves to the outside of the base 100, the lifting block 706 is moved up by rotating the third screw rod 707, and the slider 704 and the limiting shaft 702 are driven to move through the connecting rod 705, so that the limiting shaft 702 is disengaged from the limiting hole on the positioning rod 700, and then the positioning pressure plate 701 is pressed down to insert the positioning rod 700 into the ground, thereby improving the position stability of the device during sampling.

[0079] Embodiment 5

[0080] The structure of this embodiment is basically the same as that of the first embodiment, except that the sampling barrel 600 is rotatably connected to the corresponding fixed circular plate 401 or movable circular plate 402, and a plurality of blades 601 are evenly fixed on the lower portion of the outer wall of the sampling barrel 600 along the circumferential direction. When there is air inside the sampling barrel 600, the resistance will increase when it goes deeper into the water, so the sampling barrel 600 can be opened and immersed in the water, and in the process of moving downward in the water, the sampling barrel 600 is rotated by the action of the water flow and the blades 601, and the debris adhered to the sampling barrel 600 is rotated and thrown out, which plays a certain cleaning role and reduces the impact on the subsequent sampling of the sampling barrel 600. When the corresponding depth is reached, the sampled water body is located inside the sampling barrel 600, and it can be sealed directly by the sealing component.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0082] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An environmental detection multi-point sampling device, comprising a base (100), a device box (101) is provided on one side of the top of the base (100), a mobile frame (200) is provided on the other side, and a sampling mechanism is provided on the mobile frame (200), characterized in that: Two inclined and parallel hydraulic telescopic rods (201) are rotatably connected between the bottom of the mobile frame (200) and the top of the base (100), and two parallel rotating rods (202) are rotatably connected between the left and right ends of the bottom of the mobile frame (200) and the top of the base (100); The sampling mechanism comprises a middle seat (300) located in the middle of the front side of the moving frame (200), and the middle seat (300) is connected to the moving frame (200) through an extension assembly, two parallel fixed rods (301) are symmetrically fixed on the left and right sides of the middle seat (300), and adjustment assemblies are respectively arranged between the two fixed rods (301) on the left and between the two fixed rods (301) on the right, and the outer ends of the two adjustment assemblies are each provided with an adjustment seat (400); The bottom of the intermediate seat (300) and the adjustment seat (400) are both provided with a first sampling assembly, a second sampling assembly is provided below the first sampling assembly, a lifting assembly is provided between the intermediate seat (300) and the adjustment seat (400), and the bottom end of the lifting assembly passes through the first sampling assembly and is connected to the second sampling assembly; The first sampling assembly comprises a fixed circular plate (401), and bosses (405) are symmetrically fixed on both sides of the fixed circular plate (401), and two vertical fixed shafts (406) are symmetrically fixed on the bosses (405), and the top ends of the fixed shafts (406) are fixedly connected to the bottom surfaces of the corresponding intermediate seats (300) or the adjustment seats (400); the second sampling assembly comprises a movable circular plate (402), and the movable circular plate (402) is connected to the lifting assembly, and the movable circular plate (402) is symmetrically fixed on both sides of the movable circular plate (402). A boss (405) is fixed, a vertical moving shaft (407) is fixed in the middle of the top surface of the boss (405), the top end of the moving shaft (407) passes through the boss (405) on the fixed circular plate (401), and is slidably connected to the boss (405), a plurality of vertical sampling tubes (600) are evenly arranged along the circumferential direction on the fixed circular plate (401) and the moving circular plate (402), a water inlet is arranged in the middle of the bottom of the sampling tube (600), and a sealing component is connected to the top of the sampling tube (600).

2. The multi-point sampling device for environmental detection according to claim 1, characterized in that: The adjustment assembly comprises an adjustment block (403) located between two fixed rods (301), the adjustment seat (400) is fixed to the outer end of the adjustment block (403), a sliding hole (304) is provided in the fixed rod (301), sliding rods (404) are symmetrically fixed on both sides of the inner end of the adjustment block (403), and the sliding rods (404) are slidably connected to the sliding holes (304), a threaded hole is provided in the middle of the adjustment block (403), and a second screw rod (302) is threadedly connected, the second screw rod (302) is rotatably connected to the side wall of the middle seat (300), a cavity is provided inside the middle seat (300), the end of the second screw rod (302) extends into the inside of the middle seat (300), and a third bevel gear (305) is fixed thereto, a fourth bevel gear (306) is meshed between the two third bevel gears (305), and the fourth bevel gear (306) is connected to a motor.

3. The multi-point sampling device for environmental detection according to claim 2, characterized in that: The extension assembly comprises two fixed cylinders (203) symmetrically fixed on the moving frame (200), a first threaded cylinder (204) being rotatably connected in the fixed cylinder (203), a first screw rod (205) being threadably connected in the first threaded cylinder (204), both ends of the two first screw rods (205) extending out of the corresponding first threaded cylinder (204), and an intermediate seat (300) being fixed to one end of the two first screw rods (205), a worm wheel (208) being fixed on the first threaded cylinder (204), a worm wheel (209) being meshed at the bottom of the worm wheel (208), the worm wheel (209) being rotatably connected to the moving frame (200), and a first bevel gear (210) being fixed at the inner end, a second bevel gear (211) being meshed between the two first bevel gears (210), the second bevel gear (211) being connected to a motor, and the motor being fixed to the bottom of the moving frame (200).

4. The multi-point sampling device for environmental detection according to claim 3 is characterized in that: Two wheel frames (207) are symmetrically fixed on the inner side of the movable frame (200), and a first limiting wheel (206) is rotatably connected to the wheel frame (207), and the first limiting wheel (206) is located at the top of the first screw rod (205). The top and bottom of the outer end of the fixed rod (301) are respectively rotatably connected to the second limiting wheels (303), and the adjustment block (403) on the corresponding side is located between the two second limiting wheels (303).

5. The multi-point sampling device for environmental detection according to claim 1, characterized in that: The sealing assembly comprises an annular sealing plate (602) located above the plurality of sampling barrels (600); the bottom of the annular sealing plate (602) is connected to the fixed circular plate (401) or the movable circular plate (402) via a movable structure; the top of the annular sealing plate (602) is provided with a spring cavity (603) corresponding to the position of each sampling barrel (600); a spring plate (604) is provided in the spring cavity (603); a spring is connected between the top of the spring plate (604) and the top of the spring cavity (603); two vertical spring rods (605) are fixed to the bottom surface of the spring plate (604); the bottom ends of the two spring rods (605) pass through the annular sealing plate (602) and extend into the sampling barrel (600); and a sealing plug (606) is fixed thereto; the position of the sealing plug (606) corresponds to the position of the water inlet.

6. The multi-point sampling device for environmental detection according to claim 5, characterized in that: The movable structure comprises a plurality of vertical movable rods (607) uniformly fixed to the bottom of the annular sealing plate (602) along the circumferential direction, the positions of the movable rods (607) are staggered with the positions of the sampling tube (600), and the bottoms of the fixed circular plate (401) and the movable circular plate (402) are provided with movable cavities (408) corresponding to the positions of each movable rod (607), the bottom ends of the movable rods (607) extend into the movable cavities (408), and are fixed with movable plates (608), the top surfaces of the movable plates (608) are connected to the top surfaces of the movable cavities (408) through springs, and the bottom surfaces of the movable plates (608) are fixed with magnet blocks (609), the bottom surfaces of the movable cavities (408) are fixed with electromagnets (409), the electromagnets (409) are electrically connected to a power source and a switch, and are correspondingly connected to the magnet blocks (609).

7. The multi-point sampling device for environmental detection according to claim 1, characterized in that: The lifting assembly comprises a vertical second threaded barrel (501), the second threaded barrel (501) is rotatably connected to the center of the corresponding intermediate seat (300) and the adjustment seat (400), and a vertical lifting screw rod (500) is threadedly connected in the second threaded barrel (501), the bottom end of the second threaded barrel (501) is rotatably connected to the center of the fixed circular plate (401), and the bottom end of the lifting screw rod (500) extends out of the second threaded barrel (501) and is fixed to the center of the movable circular plate (402); A fifth bevel gear (502) is fixed to the bottom of the second threaded cylinder (501), a transmission assembly is connected between the fifth bevel gear (502) located on the adjustment seat (400) and the fifth bevel gear (502) located on the intermediate seat (300), and a sixth bevel gear (503) is meshed on one side of the fifth bevel gear (502) located at the intermediate seat (300), and the sixth bevel gear (503) is connected to a motor, and the motor is fixed to the bottom of the intermediate seat (300).

8. The multi-point sampling device for environmental detection according to claim 7, characterized in that: The transmission assembly comprises a transmission cylinder (507) and a transmission shaft (506) slidably connected to the inside of the transmission cylinder (507); a strip groove is provided on the transmission shaft (506); a sliding bar is correspondingly fixed on the inner side wall of the transmission cylinder (507), and the sliding bar is slidably connected to the strip groove; one end of the transmission shaft (506) extends out of the transmission cylinder (507) and is rotatably connected to the bottom of the intermediate seat (300); a seventh bevel gear (504) is fixed to the protruding end of the transmission shaft (506), and the seventh bevel gear (504) is meshed with the fifth bevel gear (502) at the bottom of the intermediate seat (300); an end of the transmission cylinder (507) away from the intermediate seat (300) is rotatably connected to the bottom surface of the adjustment seat (400), and an eighth bevel gear (505) is fixed to the transmission cylinder, and the eighth bevel gear (505) is meshed with the fifth bevel gear (502) at the bottom of the adjustment seat (400).

9. The multi-point sampling device for environmental detection according to claim 1, characterized in that: A positioning assembly is provided in the middle of the mobile frame (200), and the positioning assembly includes a positioning pressure plate (701) located above the mobile frame (200), vertical positioning rods (700) are fixed on both sides of the bottom of the positioning pressure plate (701), the bottom end of the positioning rod (700) is set to be a pointed cone, and a horizontal limiting hole is provided in the middle, and a vertical third screw rod (707) is rotatably connected to the middle of the top of the mobile frame (200), and a lifting block (706) is threadedly connected to the third screw rod (707), and the lifting block The two sides of (706) are respectively threadedly connected with inclined connecting rods (705), and the bottom end of the connecting rod (705) is rotatably connected with a slider (704), the slider (704) is slidably connected to the top surface of the movable frame (200), and a horizontal limiting shaft (702) is fixed to the outer end, and a guide slide (703) is provided at the top of the movable frame (200) corresponding to the position of the limiting shaft (702), and one end of the limiting shaft (702) passes through the guide slide (703) and extends into the limiting hole of the positioning rod (700).

10. The multi-point sampling device for environmental detection according to any one of claims 1 to 9, characterized in that: The sampling cylinder (600) is rotatably connected to a corresponding fixed circular plate (401) or a movable circular plate (402), and a plurality of blades (601) are evenly fixed to the lower portion of the outer wall of the sampling cylinder (600) along the circumferential direction.

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