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CN-224216368-U - Water quality sampling device

CN224216368UCN 224216368 UCN224216368 UCN 224216368UCN-224216368-U

Abstract

The utility model relates to the technical field of water quality sampling, in particular to a water quality sampling device. The device comprises a cylinder body, wherein an upper containing cavity and a lower containing cavity are arranged in the cylinder body from top to bottom, a partition plate is arranged between the upper containing cavity and the lower containing cavity, the upper containing cavity comprises a group of cavities uniformly distributed along the circumferential direction of the cylinder body, a group of pistons are respectively sealed and floated in the cavities, a group of pull rods are arranged in the lower containing cavity, correspond to the cavities one by one and axially extend to the cavities to be connected with the pistons, a locking release mechanism is linked with each pull rod, a first state for simultaneously locking all the pistons and a second state for selectively releasing a single pull rod are arranged, a group of water inlets which are correspondingly communicated with the cavities are arranged on the side wall of the cylinder body, the device is combined with the linkage locking release mechanism through a plurality of groups of independent cavities, and can be used for triggering and collecting a plurality of water samples in a one-step mode through matching with an elastic reset piston and a graduated lifting assembly, so that independent sealing of samples is ensured, and convenience and accuracy of sampling are improved.

Inventors

  • FU JINGLEI
  • Miao Yiyu
  • ZHENG XIYUE

Assignees

  • 南京水务集团有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (8)

  1. 1. A water quality sampling device is characterized by comprising: The cylinder body (1) sequentially comprises an upper containing cavity (11) and a lower containing cavity (12) from top to bottom, wherein a partition plate (13) is arranged between the upper containing cavity (11) and the lower containing cavity (12), the upper containing cavity (11) comprises a group of chambers (110), and the chambers (110) are uniformly distributed and arranged along the circumferential direction of the cylinder body (1); The pistons (2) are respectively arranged in the cavity (110) in a sealing and floating mode; The group of pull rods (3) is arranged in the lower containing cavity (12), the group of pull rods (3) are arranged in one-to-one correspondence with the group of chambers (110), and the pull rods (3) axially extend into the chambers (110) to be connected with the pistons (2); A lock release mechanism (4), wherein the lock release mechanism (4) is configured in linkage with each pull rod (3) and is used for simultaneously locking the first state of all the positions of the pistons (2) and selectively releasing the second state of the single pull rod (3); the water inlets (10) are arranged on the side wall of the cylinder body (1), and each water inlet (10) is correspondingly communicated with the cavity (110).
  2. 2. The water sampling device according to claim 1, wherein the upper end of the cylinder body (1) is provided with a cover plate (14), the cover plate (14) is sealed to be arranged on the cylinder body (1), one side of the piston (2) far away from the pull rod (3) is provided with a guide rod (5), one end of the guide rod (5) far away from the piston (2) axially extends out of the cover plate (14), the outer side of the guide rod (5) is sleeved with an elastic piece (6), and two ends of the elastic piece (6) are respectively connected with the cover plate (14) and the piston (2).
  3. 3. A water sampling device according to claim 2, characterized in that a first sealing element (7) is arranged between the cover plate (14) and the guide rod (5), and the first sealing element (7) is arranged at a through hole of the guide rod (5) penetrating through the cover plate (14).
  4. 4. A water sampling device according to claim 1, wherein the piston (2) is provided with a containing groove (20), the containing groove (20) is arranged along the circumferential direction of the piston (2), and a second sealing element (8) is arranged in the containing groove (20).
  5. 5. A water sampling device according to claim 1, wherein a group of communicating pipes are arranged in the lower containing cavity (12), two ends of each communicating pipe are respectively communicated with the water inlet (10) and the cavity (110), a one-way valve (9) is arranged on each communicating pipe, and the one-way valve (9) is used for allowing water samples to enter the cavity (110) and preventing backflow.
  6. 6. A water sampling device according to claim 1, wherein the bottom of the cylinder (1) is provided with a bottom plate (15), the bottom plate (15) is mounted at the bottom of the cylinder (1) in a sealing way, and the locking release mechanism (4) comprises: The driving motor (41) is arranged in the lower containing cavity (12), and the driving motor (41) is arranged on the bottom plate (15); The rotary table (42), the rotary table (42) is installed on the rotating end of the driving motor (41), a locking block (31) is arranged at one end, close to the rotary table (42), of each pull rod (3), a notch (420) which is matched with the shape of the locking block (31) is arranged on the rotary table (42), when the locking release mechanism (4) is in a locking state, the locking block (31) is positioned at the lower end of the rotary table (42), and the locking block (31) is in contact with the rotary table (42) in the axial direction of the cylinder body (1); when the driving motor (41) drives the turntable (42) to rotate for a preset angle, the notch (420) is aligned with the locking block (31), so that the pull rod (3) obtains axial freedom degree.
  7. 7. A water sampling device according to claim 6, wherein an annular groove (421) is arranged on one side of the turntable (42) close to the driving motor (41), a roller (311) corresponding to the annular groove (421) is arranged on the locking block (31), the annular groove (421) is used for accommodating the roller (311), and when the turntable (42) rotates, the roller (311) rolls in the notch (420).
  8. 8. The water sampling device according to claim 2, further comprising a lifting mechanism and a lifting ring (16), wherein the lifting mechanism comprises a lifting rope (17), scale marks are arranged on the lifting rope (17), the scale marks are distributed at equal intervals along the length direction of the lifting rope (17), the scale marks are used for indicating the lowering depth of the lifting rope (17), the lifting rope (17) is arranged on the lifting ring (16) in a penetrating mode, and the lifting ring (16) is detachably arranged on the cover plate (14).

Description

Water quality sampling device Technical Field The utility model relates to the technical field of water quality sampling, in particular to a water quality sampling device. Background The water quality sampling is a basic work in environmental monitoring, hydrologic research and pollution tracing, and is characterized in that water samples with space representativeness and depth diversity are obtained, and in the vertical section monitoring of rivers, lakes or oceans, layered samples with different depths are required to be simultaneously collected so as to avoid interlayer mixing caused by water disturbance. In the prior art, a common water quality sampling device is designed with a single sampling chamber, the opening and closing of the sampling chamber is controlled in a manual or mechanical driving mode, the water body sampling operation is realized, and in the actual water quality sampling process, water samples at different positions and different depths in the same water area are required to be collected for multiple times so as to acquire comprehensive and accurate water quality data. However, the device with a single chamber can only finish one sampling every time, if multiple sampling is required, the device needs to be repeatedly taken out from the water body, the position and the depth are readjusted, and then the next sampling is performed, so that the operation process is complex, a great deal of time and labor are consumed, and the water sample is polluted due to the fact that the device frequently enters and exits the water body, and the accuracy of the detection result is affected. Therefore, there is a need for a water sampling device to solve the above problems. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides the water quality sampling device, which solves the technical problems that the existing sampling device is low in sampling efficiency, water samples with different depths in the same water area are difficult to collect at one time, and the water samples are easy to pollute. In order to achieve the above object, the present utility model is realized by the following technical scheme: A water sampling device comprising: The cylinder body sequentially comprises an upper containing cavity and a lower containing cavity from top to bottom, wherein a partition plate is arranged between the upper containing cavity and the lower containing cavity, the upper containing cavity comprises a group of chambers, and a group of chambers are uniformly distributed and arranged along the circumferential direction of the cylinder body; the pistons are respectively arranged in the cavity in a sealing and floating manner; the pull rods are arranged in the lower containing cavity, the pull rods are arranged in one-to-one correspondence with the chambers, and the pull rods axially extend into the chambers and are connected with the pistons; The locking release mechanism is in linkage configuration with each pull rod and is used for simultaneously locking the first state of all piston positions and selectively releasing the second state of a single pull rod; The water inlets are arranged on the side wall of the cylinder body, and each water inlet is correspondingly communicated with the cavity. Based on the structure, the water quality sampling device is characterized in that the sampling device is immersed in a water area to be sampled, all pistons are locked by a locking release mechanism in an initial state, namely, in a first state, at the moment, a cavity is closed, all water inlets are not filled with water due to the sealing of the pistons, then corresponding pull rods are respectively released by the locking release mechanism at different depths of the water area to be sampled according to requirements, the corresponding pistons are sealed and float and arranged in the cavity, water is absorbed by the corresponding pistons, other pistons are kept motionless, namely, in a second state, after the cavity is fully filled with water samples, sampling work is completed, a group of cavities are uniformly distributed along the circumferential direction of a cylinder body, the water samples with different depths can be collected by the device under one time in cooperation with the pistons and the locking release mechanism, sampling efficiency is improved, the cavities are mutually independent, water sample mixing is prevented, the purity of the water samples is ensured, and the follow-up detection accuracy is improved. Furthermore, the upper end of the cylinder body is provided with the cover plate, the cover plate sealing cover is arranged on the cylinder body, one side of the piston, which is far away from the pull rod, is provided with the guide rod, one end of the guide rod, which is far away from the piston, axially extends out of the cover plate, the outer side of the guide rod is sleeved with the elastic piece, and two ends of the elastic piece a