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CN-224231334-U - Integrated collector of mud sieve

CN224231334UCN 224231334 UCN224231334 UCN 224231334UCN-224231334-U

Abstract

The utility model relates to the field of environmental monitoring and benthonic biological analysis, in particular to a mud-sieve integrated collector which comprises a grab bucket type mud collector and a sieve-washing net bag, wherein the grab bucket type mud collector consists of two grab buckets connected in a hinged mode and supports respectively connected with the two grab buckets, the sieve-washing net bag consists of a net structure made of a protoplasm material, the sieve-washing net bag is detachably connected with inner cavities of the two grab buckets, and symmetrically arranged opening and closing assemblies are respectively arranged on the inner walls of the two grab buckets. The utility model is connected to the grab bucket through the screen washing mesh bag, so that the sediment sampled by the grab bucket can directly enter the screen washing mesh bag, the problem of benthonic organism omission caused by scattering in the sediment transferring process in the prior art is avoided, and the problem of sample cross contamination caused in the sediment transferring process is also avoided.

Inventors

  • WU HAO
  • LUO SHISHANG
  • MA DAN
  • CHENG ZHONGQIN
  • WANG YONGHONG

Assignees

  • 苏州大学

Dates

Publication Date
20260512
Application Date
20250522

Claims (10)

  1. 1. The integrated mud sieve collector is characterized by comprising a grab bucket type mud collector and a sieve washing net bag (1), wherein the grab bucket type mud collector consists of two grab buckets (2) connected in a hinged mode and supports (3) respectively connected with the two grab buckets (2), the sieve washing net bag (1) consists of a net structure made of a protoplasm material, the sieve washing net bag (1) is detachably connected to inner cavities of the two grab buckets (2), and symmetrically arranged opening and closing assemblies are respectively arranged on the inner walls of the two grab buckets (2); The open end of screen wash pocket (1) has six extension, and wherein the inside of two extension departments is provided with respectively and draws post (4), the surface connection of drawing post (4) has two symmetrical extraction ropes (5) that set up, two draw the one end that draws post (4) was kept away from and extends to the outside of grab bucket (2) respectively to be located one side of support (3), and two draw the both ends of post (4) to set up respectively in the subassembly that opens and shuts that corresponds, draw the inside that the pulling force effect of post (4) through drawing rope (5) breaks away from the subassembly that opens and shuts, the surface that screen wash pocket (1) corresponds the open end is provided with two reference column (6), two reference column (6) are close to the articulated department of two grab buckets (2), and two reference column (6) can dismantle respectively and connect at the grab bucket (2) inner wall that corresponds.
  2. 2. The integrated mud sieve collector according to claim 1, wherein the opening and closing assembly comprises a fixed clamping plate (7) fixedly connected to the inner wall of the grab bucket (2), a movable clamping plate (8) rotatably connected to the fixed clamping plate (7) and a tension spring (9) arranged between the fixed clamping plate (7) and the movable clamping plate (8), two ends of the tension spring (9) are respectively hooked on the corresponding clamping plates, the inner wall of the movable clamping plate (8) is connected with a baffle (10), and the end part of the traction column (4) is arranged between the fixed clamping plate (7) and the movable clamping plate (8) and is positioned on one side of the baffle (10).
  3. 3. The integrated mud sieve collector according to claim 2, wherein the opening and closing assembly further comprises a rotating shaft (11) penetrating through the fixed clamping plate (7) and the movable clamping plate (8) at the same time, one end of the rotating shaft (11) extends to the outer side of the grab bucket (2), a nut (12) is connected with the rotating shaft in a threaded manner, and the movable clamping plate (8) rotates around the rotating shaft (11).
  4. 4. The mud sieve integrated collector according to claim 1, wherein symmetrically arranged threaded through holes (13) are respectively formed in the surfaces of the two grab buckets (2), positioning bolts (14) are respectively connected with the symmetrically arranged threaded through holes (13) in a threaded manner, thread grooves (15) are respectively formed in two ends of the positioning column (6), and one ends of the two positioning bolts (14) are respectively connected with the corresponding thread grooves (15) in a threaded manner.
  5. 5. The integrated mud sieve collector according to claim 1, wherein the surfaces of the two grab buckets (2) are respectively provided with a strip-shaped opening (16) in a penetrating way, one side of each strip-shaped opening (16) is respectively provided with a clamping column (17), the clamping columns (17) are sleeved with elastic bands (18), and one ends of the elastic bands (18) pass through the inner sides of the strip-shaped openings (16) and are connected to the surface of the sieve washing net bag (1).
  6. 6. A mud sieve integrated collector according to claim 1, wherein the surfaces of the two traction columns (4) are respectively provided with a stabilizing groove, and the two stabilizing grooves are respectively provided with a magnet block (19).
  7. 7. The integrated mud sieve collector according to claim 1, wherein the surfaces of the two grab buckets (2) are respectively provided with a sinking groove (20), the top end side of each sinking groove (20) is respectively provided with an arc-shaped frame (21) connected with the surface of the grab bucket (2), a gap is arranged between one end, far away from the surface of the grab bucket (2), of the arc-shaped frame (21) and the inner bottom wall of the sinking groove (20), and the extraction rope (5) is arranged on the inner side of the arc-shaped frame (21).
  8. 8. A mud sieve integrated collector as claimed in claim 1, wherein elastic belts (22) are respectively arranged in four extended edges of the opening end of the sieve washing net bag (1), one end of each elastic belt (22) is close to a traction column (4), and the other end of each elastic belt (22) is close to a positioning column (6).
  9. 9. The integrated mud sieve collector according to claim 1, wherein the extraction rope (5) movably penetrates through an elastic connection part of the sieve washing mesh bag (1), and one sides of the two grab buckets (2) close to each other are respectively provided with an anti-deflection opening for stabilizing the extraction rope (5), and one side of the anti-deflection opening is provided with a spacing area (23).
  10. 10. A mud sieve integrated collector according to claim 8, characterized in that the outer sides of both said elastic bands (22) are provided with locking means (24).

Description

Integrated collector of mud sieve Technical Field The utility model relates to the field of environmental monitoring and benthonic biological analysis, in particular to a mud-sieve integrated collector. Background Benthic organisms are important components of the aquatic ecosystem, including benthic microorganisms, small invertebrates, aquatic insect larvae, etc., playing a key role in the process of matter circulation, energy flow and pollutant migration and conversion. The composition, abundance and diversity of benthonic communities can sensitively reflect the long-term change of water environment, and are important indexes for evaluating the ecological health of water bodies. At present, petresen sludge collectors are widely adopted for collecting benthos in bottom sludge of natural water, the Petresen sludge collectors are used as grab bucket type sludge collectors, the structure of the Petresen sludge collectors consists of two grab buckets (namely metal petals), the two grab buckets are triggered to be closed by gravity, after the two grab buckets of the equipment are opened and lowered to the bottom of water and the bottom sludge is inserted, the two grab buckets are closed by the pulling force of a rope, and thus a bottom sludge sample is grabbed. However, the application of the equipment generally needs three processes of sludge collection, transfer and screening and washing to collect benthos in the bottom sludge of the natural water body, so that the traditional collection method has the following defects: 1. the sediment is easy to spill in the transferring process, so that benthos (such as small crustaceans or larvae) are omitted, cross contamination among samples can be possibly caused in the transferring process, and the sample loss risk is high; 2. The screen washing is carried with screen equipment (such as a dip net) additionally, the screen equipment is manually washed and cleaned after the bottom mud screen washing is finished, the operation is tedious and time-consuming, and the field operation efficiency is low; 3. The traditional step-by-step operation needs to manually transfer the collected sediment to a screen, and fragile organisms (such as aquatic insect appendages) are easily damaged due to dumping and collision in the process, so that the biological integrity is damaged, and the accuracy of laboratory analysis is affected. Disclosure of utility model The utility model provides a mud sieve integrated collector, which aims to solve the problems in the background technology. In order to solve the technical problems, the utility model adopts the following technical scheme: The integrated mud sieve collector comprises a grab bucket type mud collector and a sieve washing mesh bag, wherein the grab bucket type mud collector consists of two grab buckets connected in a hinged mode and supports respectively connected with the two grab buckets, the sieve washing mesh bag consists of a net structure made of a protoplasm material, the sieve washing mesh bag is detachably connected with inner cavities of the two grab buckets, and symmetrically arranged opening and closing assemblies are respectively arranged on the inner walls of the two grab buckets; The open end of the screen washing mesh bag is provided with six extended edges, wherein the interiors of the two extended edges are respectively provided with a traction column, the surfaces of the traction columns are connected with two symmetrically arranged extraction ropes, two ends of the extraction ropes, which are far away from the traction columns, are respectively extended to the outside of the grab bucket and are positioned on one side of the support, two ends of the traction columns are respectively arranged in the corresponding opening and closing assembly, the traction columns are separated from the inside of the opening and closing assembly through the pulling force action of the extraction ropes, two positioning columns are arranged on the surfaces of the screen washing mesh bag, which correspond to the open ends, and are close to the hinging positions of the two grab buckets, and the two positioning columns are respectively detachably connected to the inner walls of the corresponding grab buckets. Preferably, the opening and closing assembly comprises a fixed clamping plate fixedly connected to the inner wall of the grab bucket, a movable clamping plate rotationally connected to the fixed clamping plate and a tension spring arranged between the fixed clamping plate and the movable clamping plate, two ends of the tension spring are respectively hooked on the corresponding clamping plates, the inner wall of the movable clamping plate is connected with a baffle, and the end part of the traction column is arranged between the fixed clamping plate and the movable clamping plate and is positioned on one side of the baffle. Preferably, the opening and closing assembly further comprises a rotating shaft penetrating through the fixed c