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CN-224203119-U - River benthos sampling and analyzing device

CN224203119UCN 224203119 UCN224203119 UCN 224203119UCN-224203119-U

Abstract

The utility model discloses a sampling and analyzing device for river benthos, which relates to the technical field of sampling devices and comprises a mounting frame, a sampling and analyzing assembly and a lifting assembly, wherein the sampling and analyzing assembly is used for sampling excretory sediment of the river benthos and comprises a sampling cylinder and a balancing weight fixedly arranged at the bottom end of the sampling cylinder, and the lifting assembly is used for automatically lifting the sampling and analyzing assembly. According to the river benthonic organism sampling and analyzing device disclosed by the utility model, the sampling and analyzing assembly is arranged, so that the purpose of automatically sampling the excrement of the river benthonic organism is realized when the device samples the excrement of the river benthonic organism, in the sampling process, the rotation of the small motor can drive the three L-shaped rods and the bristles to stir the river bottom, the excrement positioned at the periphery of the bottom end of the sampling cylinder can be lifted, and thus the excrement is sucked into the sampling cylinder, the purpose of sampling the periphery of the sampling cylinder in a large range is realized, and the sampling sufficiency is improved.

Inventors

  • CHEN CHENGYONG
  • XIE CUIYUE

Assignees

  • 聊城市水文中心(聊城市水土保持监测站)

Dates

Publication Date
20260505
Application Date
20250321

Claims (7)

  1. 1. A river benthos sampling and analysis device, comprising: -a mounting frame (100), the mounting frame (100) being mounted on a marine guardrail; The sampling analysis assembly (200) is used for sampling excretory sediments of river benthos, the sampling analysis assembly (200) comprises a sampling cylinder (201) and a balancing weight (202) fixedly arranged at the bottom end of the sampling cylinder (201), a plurality of feed inlets (203) are circumferentially formed in the outer surface of the bottom end of the sampling cylinder (201), a partition plate is fixedly arranged on the inner wall of the sampling cylinder (201), a feed pipe (204) extending to the lower surface of the partition plate is embedded on the upper surface of the partition plate, a feed one-way valve is arranged on the surface of the feed pipe (204), a sealing piston (205) is slidably arranged on the inner wall of the sampling cylinder (201), and a waterproof air pump (206) used for driving the sealing piston (205) to move up and down is fixedly arranged at the top of the sampling cylinder (201); Lifting unit (300), it is used for carrying out automatic lifting to sampling analysis subassembly (200), lifting unit (300) are including setting firmly driving motor (301) in mounting bracket (100) side, driving motor (301)'s output extends to inside of mounting bracket (100) and sets firmly rolling dish (302), the inside coiling of rolling dish (302) is provided with stay cord (303), and the one end that rolling dish (302) was kept away from to stay cord (303) is connected with the fixed surface of waterproof air pump (206).
  2. 2. The device for sampling and analyzing benthonic organisms in rivers according to claim 1, wherein a discharge pipe (207) extending to the outer surface of the sampling tube (201) is embedded in the inner wall of the sampling tube (201) above the partition plate, and a discharge valve is arranged on the surface of the discharge pipe (207).
  3. 3. The river benthonic sampling and analyzing device according to claim 1, wherein the air extraction end of the waterproof air pump (206) extends to the inside of the sampling cylinder (201), and an inductively coupled plasma mass spectrum sensor (208) is fixedly arranged on the inner wall of the sampling cylinder (201) above the partition plate, and the model of the inductively coupled plasma mass spectrum sensor (208) is amble ICP-MS 7850.
  4. 4. The river benthonic biological sampling and analyzing device according to claim 1, characterized in that a heavy metal analyzer (209) is fixedly arranged on the upper surface of the mounting frame (100), the model of the heavy metal analyzer (209) is JC-ZJS-X type, the heavy metal analyzer (209) is electrically connected with the inductively coupled plasma mass spectrum sensor (208) through a wire, and a controller (400) is fixedly arranged on the side surface of the mounting frame (100).
  5. 5. The river benthonic biological sampling and analyzing device according to claim 1, wherein a plurality of positioning cones (2010) are fixedly arranged at the bottom end of the balancing weight (202) in a circumferential array, and the balancing weight (202) is made of metal iron.
  6. 6. The river benthonic biological sampling and analyzing device according to claim 1, characterized in that an annular cavity is formed in the balancing weight (202), an annular opening is formed in the inner top wall of the annular cavity, a rotating ring (2011) is rotatably arranged on the inner wall of the annular opening, three L-shaped rods (2012) are fixedly arranged at the top of the rotating ring (2011) in a circumferential array, and bristles (2013) are fixedly arranged on the surfaces of the three L-shaped rods (2012).
  7. 7. The river benthonic biological sampling and analyzing device according to claim 6, characterized in that the inner top wall of the annular cavity is fixedly provided with a small motor (2014), the output end of the small motor (2014) is fixedly provided with a first fluted disc (2015), and the outer annular surface of the rotating ring (2011) is fixedly provided with a second toothed ring (2016) meshed with the first fluted disc (2015).

Description

River benthos sampling and analyzing device Technical Field The utility model relates to the technical field of sampling devices, in particular to a river benthonic organism sampling and analyzing device. Background River benthos is used as a sensitive indicator species for the health and pollution degree of water, the heavy metal content in the body can reflect the pollution condition of the water, and the heavy metal content in benthos excrement is closely related to the accumulation amount of the heavy metal in the body. Research shows that the accumulation of heavy metals in benthic organisms has a direct relationship with the content of excrement. Therefore, when biological pollution is detected, the sludge of the river benthonic excrement needs to be sampled and analyzed, wherein a common sampling device is a bucket dredger, the sampling device mainly comprises a square box component, a bucket component, a rope wheel component, a balance beam and a lifting hook component, two anchor chains used for pulling the bucket on the bucket component are hung on the lifting hook in the use process, the dredger is quickly thrown into a preset seabed or underwater sediment through a rope or a steel wire rope, the anchor chains are pulled out of the lifting hook when the steel wire rope is continuously put, the limitation on the bucket is relieved, the two buckets are closed by the steel wire rope on the balance beam when the dredger is pulled up, and the sediment is sampled. In view of the above, the application provides a river benthonic organism sampling and analyzing device. Disclosure of utility model The utility model discloses a river benthonic organism sampling and analyzing device, and aims to solve the technical problems of laborious operation and limited sampling range in the background technology. In order to achieve the above purpose, the present utility model adopts the following technical scheme: a river benthonic sampling and analysis device, comprising: the installation frame is installed on the ship guardrail; The sampling analysis component is used for sampling excretory sediments of river benthos and comprises a sampling cylinder and a balancing weight fixedly arranged at the bottom end of the sampling cylinder, a plurality of feed inlets are formed in the circumference of the outer surface of the bottom end of the sampling cylinder, a partition plate is fixedly arranged on the inner wall of the sampling cylinder, a feed pipe extending to the lower surface of the partition plate is embedded on the upper surface of the partition plate, a feed one-way valve is arranged on the surface of the feed pipe, a sealing piston is slidably arranged on the inner wall of the sampling cylinder, and a waterproof air pump for driving the sealing piston to move up and down is fixedly arranged at the top of the sampling cylinder; The lifting assembly is used for automatically lifting the sampling analysis assembly, the lifting assembly comprises a driving motor fixedly arranged on the side face of the mounting frame, the output end of the driving motor extends to the inside of the mounting frame and fixedly provided with a winding disc, the inside of the winding disc is wound with a pull rope, and one end of the pull rope, far away from the winding disc, is fixedly connected with the surface of the waterproof air pump. In a preferred scheme, the inner wall of the sampling tube above the partition plate is embedded with a discharge pipe extending to the outer surface of the sampling tube, and the surface of the discharge pipe is provided with a discharge valve. Through setting up row material pipe, can open row material valve, be convenient for discharge the sample after taking a sample. In a preferred scheme, the air extraction end of the waterproof air pump extends to the inside of the sampling cylinder, and an inductively coupled plasma mass spectrum sensor is fixedly arranged on the inner wall of the sampling cylinder above the partition plate, and the model of the inductively coupled plasma mass spectrum sensor is Anjie ICP-MS 7850. Through setting up inductively coupled plasma mass spectrum sensor, can detect the heavy metal element in the inside river benthos excrement sample of sampling tube automatically. In a preferred scheme, the upper surface of mounting bracket has set firmly heavy metal analysis appearance, heavy metal analysis appearance's model is JC-ZJS-X type, heavy metal analysis appearance passes through wire and inductive coupling plasma mass spectrum sensor electric connection, just the side of mounting bracket has set firmly the controller. Through setting up heavy metal analysis appearance, be convenient for show the heavy metal content that detects through inductively coupled plasma mass spectrum sensor. In a preferred scheme, the bottom of balancing weight is circumference array and sets firmly a plurality of locating cone, and the material of balancing weight is metallic iron. Through se