Search

CN-121977883-A - Water quality sampler

CN121977883ACN 121977883 ACN121977883 ACN 121977883ACN-121977883-A

Abstract

The invention discloses a water quality sampler which comprises a sampler, an upper cover block and a lower cover block, wherein a sample bin is arranged on the sampler, a side block is fixed on the outer wall of the sampler, an L-shaped bent rod is fixed on the side block, a long vertical sleeve is fixed at the end part of the L-shaped bent rod, a push rod is connected in a sliding manner in the long vertical sleeve, an end block is fixed at the bottom of the push rod, and an opening at the upper end of the sample bin is shielded by the upper cover block. In the invention, before sampling, the blocking head of the lower cover block is tightly attached to the inner wall of the sample bin, the spring force pushes the sliding block to enable the lower cover block to be stably abutted against the bottom opening of the sample bin, so that initial leakage is prevented, during sampling, the upper cover block is clamped with the side block clamping groove through the clamping block to realize transverse positioning, the moving block is attached to the side block under the action of the limiting piece, the vertical displacement of the upper cover block is limited, and even if the sample bin is filled with water sample, the weight is increased, and the upper cover block is not separated from the sampler.

Inventors

  • CHEN ZHENGYING
  • ZHANG PINGPING
  • ZHANG LUN

Assignees

  • 江苏国测检测技术有限公司
  • 江苏省苏州环境监测中心

Dates

Publication Date
20260505
Application Date
20251216

Claims (7)

  1. 1. A water quality sampler, comprising: The sampler comprises a sampler (1), wherein a sample bin (2) is arranged on the sampler (1), a side block (4) is fixed on the outer wall of the sampler (1), an L-shaped bent rod (5) is fixed on the side block (4), a long vertical sleeve (6) is fixed at the end part of the L-shaped bent rod (5), a push rod (7) is connected in the long vertical sleeve (6) in a sliding manner, and an end block (8) is fixed at the bottom of the push rod (7); The upper cover block (9) shields an upper end opening of the sample bin (2), a screw hole (10) connected with the end block (8) through threads is formed in the upper cover block (9), and a positioning piece for positioning the upper cover block (9) is arranged on the side block (4); the device comprises a sliding block (15), wherein a vertical hole (16) which is in sliding connection with an L-shaped bent rod (5) is formed in the sliding block (15), the sliding block (15) is fixedly connected with a connecting rod (17), a lower cover block (18) which is in butt joint with the bottom opening of the sample bin (2) is fixed on the connecting rod (17), a blocking head (19) which is in butt joint with the inner wall of the sample bin (2) is fixed on the lower cover block (18), and a spring (14) is sleeved on the L-shaped bent rod (5); the fixed block (32), be fixed with fixed block (32) on the outer wall of sampler (1), and set up fluting (33) with shutoff head (19) looks adaptation on fixed block (32).
  2. 2. The water quality sampler according to claim 1, characterized in that the positioning piece comprises a moving block (21) which is connected with the L-shaped bent rod (5) in a sliding manner, a round hole (23) is formed in the moving block (21), a notch (12) which is matched with the moving block (21) is formed in the upper cover block (9), a clamping groove (13) is formed in the side block (4), a clamping block (11) which is clamped with the clamping groove (13) is fixed on the upper cover block (9), and the moving block (21) is kept in fit with the side block (4) under the action of the limiting piece.
  3. 3. The water quality sampler according to claim 2, wherein the limiting part comprises a rotary rod (28) rotationally connected to the L-shaped bent rod (5), a hemispherical block (30) is fixed at the bottom of the rotary rod (28), a hemispherical groove (25) matched with the hemispherical block (30) is formed in the moving block (21), a torsion spring (31) is arranged on the L-shaped bent rod (5), one end of the torsion spring (31) is fixed to the L-shaped bent rod (5), the other end of the torsion spring is fixed to the rotary rod (28), the hemispherical block (30) is made of corrosion-resistant materials, and a position limitation for the rotary rod (28) is arranged on the L-shaped bent rod (5) to prevent the hemispherical block (30) from being separated from a matching part of the hemispherical groove (25).
  4. 4. A water quality sampler according to claim 3, characterized in that the matching piece comprises a pressing block (26) which is connected with the L-shaped bent rod (5) in a sliding manner, a side groove (22) which is matched with the pressing block (26) is formed in the moving block (21), an arc-shaped block (27) is fixed on the pressing block (26), an arc-shaped groove (24) which is matched with the arc-shaped block (27) is formed in the side groove (22), and a corresponding groove (29) which is matched with the arc-shaped block (27) is formed in the rotating rod (28).
  5. 5. The water quality sampler according to claim 4, wherein a plurality of uniformly distributed filter screen openings (3) are fixed on the sampler (1), the inner wall of a sample bin (2) at one end of each filter screen opening (3) is flush, and the other end of each filter screen opening is positioned at the outer wall of the sampler (1) and is in contact with air.
  6. 6. The water quality sampler according to claim 4, wherein one end of the spring (14) is abutted against the bottom of the slider (15), and the other end is abutted against the upper surface of the pressing block (26).
  7. 7. A water sampler according to claim 3, characterized in that the spring force of the torsion spring (31) pushes the rotary rod (28) to rotate until the bottom bending of the rotary rod (28) is far away from the upper surface of the moving block (21).

Description

Water quality sampler Technical Field The invention relates to the technical field of water quality analysis, in particular to a water quality sampler. Background In the fields of environmental monitoring, water quality analysis and the like, the collection of representative water samples from water bodies such as rivers, lakes, sewage pools and the like is a basic link of subsequent detection and analysis, and the traditional water quality sampling is performed by a simple test tube, an open bucket or a sampling tool without special protection design. Because the tool lacks a sealing and protecting structure, air is easy to be mixed into the tool to form bubbles in the sampling process, or impurities such as floaters and bottom sediment on the surface of a water body are involved in the tool to directly cause water sample pollution, and meanwhile, because the tool does not have a depth control function, workers are difficult to accurately position and acquire water samples of specific water layers (such as middle water bodies and water bodies above bottom sediment), the acquired samples cannot truly reflect the water quality condition of a target monitoring area, and the accuracy of subsequent detection results is affected. In addition, the traditional sampling tool has obvious functional defects that most tools have no backflow prevention design, collected water samples are easy to flow back to a water body from the tool due to no shielding or insufficient sealing of ports in the lifting process after sampling, so that sample loss is caused, and the traditional tools cannot synchronously finish filtering when sampling water samples containing suspended particles (such as industrial wastewater and sediment particles in river water bodies), and the water samples need to be transferred to special filtering equipment for secondary treatment, so that the operation steps are increased, the sampling time is prolonged, new pollution is possibly introduced in the transfer process, and the detection efficiency and the detection precision are further influenced. Therefore, structural optimization and functional upgrading are needed to be carried out on the traditional water quality sampling device so as to solve the core problems of sampling pollution, depth control, backflow prevention, synchronous filtration and the like, and the accurate and efficient water quality sampling requirement is met. There is a need for an improved conventional sampling device that avoids the above-mentioned problems. Disclosure of Invention The invention aims to solve the problems and provides a water quality sampler. In order to achieve the above purpose, the present invention adopts the following technical scheme: A water quality sampler comprising: the sampler is provided with a sample bin, a side block is fixed on the outer wall of the sampler, an L-shaped bent rod is fixed on the side block, a long vertical sleeve is fixed at the end part of the L-shaped bent rod, a push rod is connected in a sliding manner in the long vertical sleeve, and an end block is fixed at the bottom of the push rod; The upper cover block shields the upper end opening of the sample bin, a screw hole connected with the end block through threads is formed in the upper cover block, and a positioning piece for positioning the upper cover block is arranged on the side block; The sliding block is provided with a vertical hole which is in sliding connection with the L-shaped bent rod, the sliding block is fixedly connected with a connecting rod, a lower cover block which is in butt joint with the bottom opening of the sample bin is fixed on the connecting rod, a plugging head which is in butt joint with the inner wall of the sample bin is fixed on the lower cover block, and a spring is sleeved on the L-shaped bent rod; The fixed block is fixed on the outer wall of the sampler, and a slot matched with the blocking head is formed in the fixed block. Preferably, the locating piece comprises a moving block which is connected with the L-shaped bent rod in a sliding manner, a round hole is formed in the moving block, a notch which is matched with the moving block is formed in the upper cover block, a clamping groove is formed in the side block, a clamping block which is clamped with the clamping groove is fixed on the upper cover block, and the moving block is kept fit with the side block under the action of the limiting piece. Preferably, the locating part includes the rotary rod of rotating connection on the L shape bent rod, and the bottom of rotary rod is fixed with the hemisphere piece, set up the hemisphere groove of hemisphere piece looks adaptation on the movable block, be equipped with the torsional spring on the L shape bent rod, and the one end and the L shape bent rod of torsional spring are fixed, and the other end is fixed with the rotary rod, the hemisphere piece is corrosion-resistant material constitution, be equipped with disrotatory bull stick positi