CN221148178U

CN221148178U - Liquid layered sampler

Info

Publication number: CN221148178U
Application number: CN202322975141.2U
Authority: CN
Inventors: 郭萍萍; 林文波
Original assignee: Fujian Minjiang River Estuary Wetland National Nature Reserve Management Office
Current assignee: Fujian Minjiang River Estuary Wetland National Nature Reserve Management Office
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2024-06-14
Anticipated expiration: 2033-11-03

Abstract

The utility model discloses a liquid stratified sampling device, which belongs to the technical field of liquid sampling, and comprises a shell, wherein a plurality of sampling tubes are arranged in the shell, two ends of each sampling tube extend out of the shell, a piston is arranged in each sampling tube, a piston rod is arranged on each piston, a blocking mechanism is further arranged at the lower end of the outer wall of each sampling tube and used for blocking the corresponding sampling tube, a mark is arranged at the top end of each piston rod 4, each blocking mechanism comprises a connecting strip fixedly connected to the lower end of the outer wall of each sampling tube, a blocking plug is fixedly connected to the other end of each connecting strip, the blocking plugs are matched with the corresponding sampling tubes, the stratified sampling device can be realized, the operation is simple and convenient, the mixing of liquids with different depths can be avoided during sampling, and the accuracy of the final measurement of sampling results is ensured.

Description

Liquid layered sampler

Technical Field

The utility model relates to the technical field of liquid sampling, in particular to a liquid stratified sampling device.

Background

The liquid sampling generally needs to be performed by a special liquid sampler, and because the contents of components in the liquids with different depths have certain differences, a plurality of multi-layer liquid samplers for different depths and layers, such as a layered water body sampler for water environment detection in China patent with publication number of CN115326491A, appear at present, but when the samplers are used for sampling, the operation is complex, and in the sampling process, liquids with different depths are easy to mix, although the liquids are mixed, certain influence is still generated on the measurement result, and the measurement result has deviation.

Disclosure of utility model

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a liquid stratified sampling device which can be realized, is simple and convenient to operate, can avoid mixing of liquids with different depths during sampling, and ensures the accuracy of the result during final measurement of sampling.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a liquid stratified sampling ware, includes the shell, and the shell is inside to be provided with a plurality of sampling tubes, and the shell is all extended to the both ends of sampling tube, and the sampling tube is inside to be provided with the piston, is provided with the piston rod on the piston, and the position of sampling tube outer wall low side still is provided with shutoff mechanism for carry out the shutoff to the sampling tube.

Further, the top end of the piston rod is provided with a label.

Further, the plugging mechanism comprises a connecting strip fixedly connected to the lower end of the outer wall of the sampling tube, the other end of the connecting strip is fixedly connected with a plugging plug, and the plugging plug is matched with the sampling tube.

Further, the inner wall of the sampling tube is provided with a first limiting ring, a limiting plate is arranged between the outer walls of the sampling tubes, the limiting plate is positioned above the first limiting ring, and the inner diameter of the first limiting ring is smaller than the outer diameter of the limiting plate.

Further, the position of the outer wall of each sampling tube close to the top end is fixedly connected with a second limiting ring, the top end of the sampling tube is in threaded connection with a limiting cover, and the second limiting ring abuts against the limiting cover in a screwing state of the limiting cover.

Further, the distance between the top of the first limiting ring and the top of the second limiting ring is equal to the distance between the bottom side of the limiting plate and the inner wall of the top of the limiting cover in the screwing state.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) This scheme can use different sampling tube when taking a sample the liquid of different degree of depth through being provided with a plurality of sampling tubes, easy operation, practicality.

(2) This scheme is when the sample, earlier with shutoff stopper shutoff sampling tube, then stretch into this device in the liquid that will take a sample, when different degree of depth, utilize the shutoff stopper in the sampling tube to pop out by pressure through pressing the piston rod, later can take a sample with this sampling tube, can avoid the liquid of different degree of depth to take place to mix, guarantees the accuracy of the result when taking a sample and measuring at last.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

Fig. 4 is an enlarged schematic view of the structure of fig. 2B according to the present utility model. (note that this section is smooth)

The reference numerals in the figures illustrate:

1. A housing; 2. a sampling tube; 3. a piston; 4. a piston rod; 5. a reference numeral; 6. a connecting strip; 7. sealing the plug; 8. a first stop collar; 9. a limiting plate; 10. a second limiting ring; 11. and a limit cover.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

Referring to fig. 1-4, a liquid layered sampler, including shell 1, shell 1 is inside to be provided with a plurality of sampling tubes 2, the quantity of sampling tube 2 sets up according to actual demand, the shell 1 is all extended to the both ends of sampling tube 2, the inside piston 3 that is provided with of sampling tube 2, be provided with piston rod 4 on the piston 3, the length of piston rod 4 can set up according to actual demand, be provided with a plurality of sampling tubes 2, can use different sampling tubes 2 when taking a sample to the liquid of different degree of depth, easy operation, practical, sampling tube 2 outer wall low side's position still is provided with shutoff mechanism for carry out the shutoff to sampling tube 2, when taking a sample, shutoff mechanism shutoff sampling tube 2 earlier, then stretch into this device in the liquid that is to take a sample, when different degree of depth, utilize pressure to pop out the shutoff mechanism in the sampling tube 2 through pressing the piston rod 4, afterwards, can this sampling tube 2 sample, can avoid the liquid of different degree of depth to take a mixture, guarantee the accuracy of the final measurement of taking a sample.

Referring to fig. 1, the top end of the piston rod 4 is provided with a reference numeral 5, and the reference numerals 5 are marked in the order of 1, 2, 3, 4 and 5 …, so that identification is facilitated.

Referring to fig. 1, the plugging mechanism comprises a connecting strip 6 fixedly connected to the lower end of the outer wall of the sampling tube 2, a plugging plug 7 is fixedly connected to the other end of the connecting strip 6, the plugging plug 7 is matched with the sampling tube 2, during sampling, the sampling tube 2 is plugged by the plugging plug 7, different plugging plugs 7 are respectively ejected out by pressing the piston rod 4 at different depths of liquid, then sampling is performed, mixing of the liquids at different depths can be avoided, accuracy of the result in final measurement of sampling is ensured, and the sampling tube 2 can be plugged by the plugging plug 7 after sampling, so that liquid leakage in the sampling tube 2 is prevented.

Referring to fig. 2 and3, the inner wall of the sampling tube 2 is provided with a first limiting ring 8, a limiting plate 9 is arranged between the outer walls of the sampling tubes 2, the limiting plate 9 is located above the first limiting ring 8, the inner diameter of the first limiting ring 8 is smaller than the outer diameter of the limiting plate 9, and the limiting plate 9 and the first limiting ring 8 are arranged, so that the stability of the sampling tube 2 can be ensured when the piston rod 4 is pressed downwards.

Referring to fig. 2 and 4, a second limiting ring 10 is fixedly connected to the outer wall of each sampling tube 2 near the top end, a limiting cover 11 is in threaded connection with the top end of each sampling tube 2, the second limiting ring 10 abuts against the limiting cover 11 in a screwing state of the limiting cover 11, and the second limiting ring 10 and the limiting cover 11 are arranged, so that stability of the sampling tube 2 can be ensured when the piston rod 4 is lifted upwards.

Referring to fig. 2, the distance between the top of the first stop collar 8 and the top of the second stop collar 10 is equal to the distance between the bottom side of the stop plate 9 and the inner wall of the top of the stop cap 11 in the screwed state, so that the stability of the sampling tube 2 can be ensured when the piston rod 4 is lifted upwards or pressed downwards.

When in use: during sampling, the sampling tube 2 is firstly plugged by the plugging plug 7, different plugging plugs 7 are respectively popped up by pressing different piston rods 4 at different depths of liquid, then sampling is carried out, the operation is simple, mixing of the liquids at different depths can be avoided, the accuracy of the result during final measurement of sampling is ensured, the sampling tube 2 can be plugged by the plugging plug 7 after sampling, and liquid leakage in the sampling tube 2 is prevented.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. A liquid stratified sampling device, characterized in that: including shell (1), shell (1) inside is provided with a plurality of sampling tube (2), the shell (1) is all extended at the both ends of sampling tube (2), sampling tube (2) inside is provided with piston (3), be provided with piston rod (4) on piston (3), the position of sampling tube (2) outer wall low side still is provided with shutoff mechanism for carry out the shutoff to sampling tube (2).

2. A liquid stratified sampling as claimed in claim 1, wherein: the top end of the piston rod (4) is provided with a mark (5).

3. A liquid stratified sampling as claimed in claim 1, wherein: the plugging mechanism comprises a connecting strip (6) fixedly connected to the lower end of the outer wall of the sampling tube (2), the other end of the connecting strip (6) is fixedly connected with a plugging plug (7), and the plugging plug (7) is matched with the sampling tube (2).

4. A liquid stratified sampling as claimed in claim 1, wherein: the inner wall of the sampling tube (2) is provided with a first limiting ring (8), a plurality of limiting plates (9) are arranged between the outer walls of the sampling tube (2), the limiting plates (9) are located above the first limiting rings (8), and the inner diameter of the first limiting rings (8) is smaller than the outer diameter of the limiting plates (9).

5. A liquid stratified sampling as claimed in claim 4, wherein: every sampling tube (2) outer wall is close to the position fixedly connected with second spacing ring (10) on top, sampling tube (2) top threaded connection has spacing lid (11), under spacing lid (11) screw up the state, second spacing ring (10) is close to spacing lid (11).

6. A liquid stratified sampling as claimed in claim 5, wherein: the distance between the top of the first limiting ring (8) and the top of the second limiting ring (10) is equal to the distance between the bottom side of the limiting plate (9) and the inner wall of the top of the limiting cover (11) in a screwing state.