CN211527909U

CN211527909U - Water sample collection system

Info

Publication number: CN211527909U
Application number: CN201921929325.2U
Authority: CN
Inventors: 任坤; 潘晓东; 曾洁
Original assignee: Institute of Karst Geology of CAGS
Current assignee: Institute of Karst Geology of CAGS
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-09-18
Anticipated expiration: 2029-11-11

Abstract

The utility model relates to a water sample collection system belongs to water quality analysis test technical field, can't interrupt at any time when having solved current water sample collection sampling, filtration membrane change the problem that speed is slow, work efficiency is low. The utility model discloses a water sample collecting device, which comprises a bucket body and a filtering component, wherein the bucket body comprises an upper bucket body and a lower bucket body, a switch is arranged between the upper bucket body and the lower bucket body, and the switch is used for controlling the communication state between the upper bucket body and the lower bucket body; the filtering component is detachably mounted on the lower hopper body and used for filtering impurities in the natural water sample. The utility model discloses can interrupt the sampling at any time as required to can quick replacement filtration membrane, improved work efficiency greatly.

Description

Water sample collection system

Technical Field

The utility model relates to a water quality analysis tests technical field, especially relates to a water sample collection device.

Background

The method is used for collecting natural water samples (including rivers, lakes, oceans and the like) in the field and analyzing various physical and chemical indexes of the natural water samples, and is important content of scientific research on the physics, chemistry, biology and environment of the natural water samples.

At present, when a geologist collects a natural water sample in the field, impurities need to be filtered out in a collection field due to the fact that the water sample has sundries such as silt and broken stones. Current water sample collection system includes funnel, filtration membrane and collection appearance bottle, during the sampling, covers the filtration membrane at collection appearance bottle bottleneck earlier, is connected funnel liquid outlet and collection appearance bottle bottleneck again, and collection appearance bottle bottleneck fixes filtration membrane at collection appearance bottle bottleneck with the cooperation of funnel liquid outlet, pours the natural water sample of gathering into the funnel, and impurity stays on filtration membrane, and natural water appearance gets into collection appearance bottle through the filtration membrane.

However, in actual operation, if the sample collection bottle is full of the collected sample or the filtering membrane has too much impurities to affect the filtering effect, the sample collection needs to be interrupted and the sample collection bottle or the filtering membrane needs to be replaced again. When the existing water sample collection device needs to interrupt sample collection, the residual natural water sample in the funnel needs to be completely poured out, and a new sample collection bottle or a new filtering membrane needs to be replaced. On one hand, the water body samples need to be collected on site again, and a certain time interval exists between two times of collection, so that the element content in the water body samples collected twice is different, and the accuracy of an experimental result is influenced; on the other hand, the installation of filtration membrane is wasted time and energy, gathers a water sample outward in succession and need change filtration membrane many times, and working strength is big, changes filtration membrane and occupies a large amount of time, seriously influences work efficiency. Therefore, it is urgently needed to provide a water sample collecting device which can interrupt water sample collection at any time and realize quick replacement of a filtering membrane.

SUMMERY OF THE UTILITY MODEL

In view of the aforesaid analysis, the utility model aims at providing a water sample collection system for can't interrupt at any time when solving current water sample collection sampling, filtration membrane change the problem that speed is slow, work efficiency is low.

The purpose of the utility model is mainly realized through the following technical scheme:

a water sample collecting device comprises a bucket body and a filtering component, wherein the bucket body comprises an upper bucket body and a lower bucket body, a switch is arranged between the upper bucket body and the lower bucket body, and the switch is used for controlling the communication state between the upper bucket body and the lower bucket body; the filtering component is detachably arranged on the lower hopper body and used for filtering impurities in the natural water sample.

On the basis of the above scheme, the utility model discloses following improvement has still been made:

further, the liquid outlet of lower bucket body and the inlet threaded connection of collection appearance bottle, perhaps, the liquid outlet of lower bucket body can stretch into in the collection appearance bottle.

Further, the lower bucket body is provided with a mounting opening for mounting the filtering component, and the filtering component can be inserted into the mounting opening and is in seamless contact with the inner wall of the lower bucket body.

Further, the horizontal projection of the mounting opening is semicircular; the internal diameter of filter assembly and bucket body equals down, and after filter assembly inserted the installing port, filter assembly's horizontal projection coincided with the horizontal projection of bucket body liquid outlet down.

Furthermore, the upper bucket body is connected with the lower bucket body through a pipeline, and the switch is arranged on the pipeline.

Furthermore, the filtering assembly comprises an upper filtering frame, a lower filtering frame and a filtering membrane, and the filtering membrane can be detachably arranged between the upper filtering frame and the lower filtering frame; go up to filter the frame and filter down the frame and be hollow out structure, go up to filter the frame and be equipped with spacing portion, filter the frame down and be equipped with spacing hole, spacing portion can insert spacing hole.

Further, the periphery wall of the lower filter frame is provided with a clamping portion, and the clamping portion can be clamped on the mounting port and used for fixedly supporting the filter assembly.

Furthermore, the inner wall of the lower bucket body is provided with a supporting part, and after the filter assembly is inserted into the mounting opening, the lower surface of the edge of the filter assembly can be in contact with the upper surface of the supporting part.

Furthermore, the filtering component is provided with a handle which is arranged on the lower filtering rack.

Further, the water sample collection device is also provided with a sealing assembly, and the sealing assembly can be sleeved on the lower hopper body and can coat the mounting opening.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

a) the utility model provides a water sample collection system, through last bucket body and be equipped with the switch down between the bucket body, the switch is used for controlling the intercommunication state between bucket body and the bucket body down, can interrupt the sampling at any time according to the site conditions, need not fall unfiltered natural water sample and resample, has saved the time greatly, is showing and has improved work efficiency, has avoided leading to the production error because of same lot of sample divides the sampling many times moreover, and then influences the reliability of test result.

b) The utility model provides a water sample collection system, through setting up filtering component into detachable construction, filtering component demountable installation is in bucket body under promptly, can assemble multiunit filtering component in advance, when needing to change filtration membrane when field sampling, the cooperation switch can realize quick replacement filtering component, and convenient operation is showing and is improving work efficiency.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is a schematic structural diagram of a water sample collection device in an embodiment;

FIG. 2 is a sectional view of the filter assembly of the embodiment shown disassembled;

FIG. 3 is a top view of a lower filter frame of the filter assembly of the example embodiment;

fig. 4 is a bottom view of a filter frame on the filter assembly of the embodiment.

Reference numerals:

1-a bucket body; 11-upper bucket body; 12-lower bucket body; 13; a switch; 14-a mounting port; 2-a filter assembly; 21-mounting a filter frame; 211-a limiting part; 22-lower filter stand; 221-limiting hole; 222-a clamping part; 23-a filtration membrane; 24-a handle; 3-sample collection bottle.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

The utility model discloses a concrete embodiment of the utility model discloses a water sample collecting device, as shown in figures 1 to 4, comprising a bucket body 1 and a filtering component 2, wherein the bucket body 1 comprises an upper bucket body 11 and a lower bucket body 12, the lower bucket body 12 is an inverted funnel-shaped structure, a switch 13 is arranged between the upper bucket body 11 and the lower bucket body 12, and the switch 13 is used for controlling the communication state between the upper bucket body 11 and the lower bucket body 12; filter assembly 2 demountable installation is in bucket body 12 down for filter the impurity in the natural water sample.

In this embodiment, the liquid outlet of the lower bucket body 12 is connected with the liquid inlet of the sample collecting bottle 3 by screw thread or by plug-pull sealing, or the liquid outlet of the lower bucket body 12 is smaller than the liquid inlet of the sample collecting bottle 3, and the liquid outlet of the lower bucket body 12 extends into the sample collecting bottle 3. In order to avoid natural water sample and air contact among the sampling process, the liquid outlet and 3 threaded connection or plug sealing connection of collection appearance bottle of bucket body 12 under the preferred adoption, simultaneously, the top of going up bucket body 11 is equipped with the lid, and the lid can be sealed with the inlet of going up bucket body 11. During the filtration, close the inlet that the lid will go up bucket body 11 and cover, preferably, lid and last bucket body 11 liquid inlet contact position are equipped with the sealing member, can effectively avoid water sample and air contact in the filtering process, lead to influencing quality of water.

In this embodiment, the upper bucket body 11 and the lower bucket body 12 may be integrally formed, the joint between the upper bucket body 11 and the lower bucket body 12 is a thin tubular structure, the diameter of the thin tubular structure is smaller than the diameters of the upper bucket body 11 and the lower bucket body 12, the switch 13 is disposed on the thin tubular structure, or the upper bucket body 11 and the lower bucket body 12 are connected through a pipeline, and the switch 13 is disposed on the pipeline. Preferably, the switch 13 is a valve, and the valve can control opening and closing of a pipeline between the bucket body 11 and the lower bucket body 12, and can also control flow velocity and flow rate of fluid in the pipeline.

In this embodiment, the lower bucket body 12 is provided with a mounting opening 14 for mounting the filter assembly 2, and the filter assembly 2 is inserted into the mounting opening 14 and is in seamless contact with the inner wall of the lower bucket body 12. The horizontal projection of the mounting opening 14 is semicircular; the internal diameter of filter assembly 2 and bucket body 12 equals down, and filter assembly 2 inserts the installing port 14 back, and the horizontal projection of filter assembly 2 coincides with the horizontal projection of bucket body 12 liquid outlet down.

In this embodiment, as shown in fig. 2, the filtering assembly 2 includes an upper filtering frame 21, a lower filtering frame 22 and a filtering membrane 23, and the filtering membrane 23 is detachably mounted between the upper filtering frame 21 and the lower filtering frame 22; in order to make the water sample leak to collection appearance bottle 3 smoothly down, go up filter frame 21 and filter frame 22 down and all be hollow out construction, and have certain intensity, preferably adopt hard material to make, exemplarily, go up filter frame 21 and filter frame 22 down and all be provided with the through-hole, the through-hole is circular through-hole or bar through-hole.

In order to prevent the upper filter frame 21 and the lower filter frame 22 from being dislocated, the upper filter frame 21 is provided with a limiting portion 211, the lower filter frame 22 is provided with a limiting hole 221, the limiting portion 211 can be inserted into the limiting hole 221, and preferably, the number of the limiting portions 211 and the limiting holes 221 is more than 2 and is uniformly distributed. During the use, lay filtration membrane 23 under on the filter stand 23, will go up filter stand 21 lock on lower filter stand 22, go up filter stand 21 spacing portion 211 and insert the spacing hole 221 of lower filter stand 22, spacing portion 211 and the spacing hole 221 cooperation will go up filter stand 21 and the rigidity of lower filter stand 22, the effectual filtration effect that has prevented to be influenced because of last filter stand 21 and lower filter stand 22 take place the dislocation and lead to filtration membrane 23 to shift or roll over.

In order to improve the stability of the filter assembly 2 after being inserted into the mounting opening 14, the outer peripheral wall of the lower filter frame 22 is provided with a clamping portion 222, the clamping portion 222 is perpendicular to the plane of the lower filter frame 22, the clamping portion 222 is fixedly arranged at the lower end of the outer peripheral wall of the lower filter frame 22, the clamping portion is clamped on the mounting opening 14 and used for fixedly supporting the filter assembly 2, the clamping portion 222 can be attached to the outer side wall of the lower filter frame 22 below the mounting opening 14, and the arrangement of the clamping portion 222 does not affect the filter assembly 2 to be completely inserted into the mounting opening 14. Preferably, the number of the locking portions 22 is at least two, and taking two locking portions as an example, a straight distance between the setting points of the two locking portions is smaller than the diameter of the lower filter frame 22. Setting device

In order to further improve the stability after filter assembly 2 inserts installing port 14, the inner wall of bucket body 12 is equipped with the supporting part down, preferably, the supporting part is the loop configuration, the supporting part of loop configuration is fixed and is set up in the inner wall of bucket body 12 down, after filter assembly 2 inserts installing port 14, filter assembly 2 is close to the lower surface at edge and the upper surface contact of supporting part, this structure sets up, filter assembly 2 after the installation is more stable, avoided producing the space because of filter assembly 2 installation is unstable between filter assembly 2 and the bucket body 12 inner wall down, thereby the filter effect has been guaranteed.

In order to facilitate the installation and the disassembly of the filter assembly 2, the filter assembly 2 is provided with a handle 24, the handle 24 is arranged on the lower filter frame 22, the handle 24 is arranged to facilitate the installation and the disassembly of the filter assembly 2 by operators, and the operation efficiency can be improved.

In order to prevent the water sample from overflowing from the gap between the filtering component 2 and the mounting opening 14, the water sample collecting device of this embodiment is further provided with a sealing component, the sealing component is sleeved on the lower bucket body 12 and covers the mounting opening 14, preferably, the sealing component is an elastic rubber sealing ring, the diameter of the elastic rubber sealing ring is smaller than that of the lower bucket body 12, when the water sample collecting device is used, the filtering component 2 is inserted into the mounting opening 14, the elastic rubber sealing ring is sleeved on the lower bucket body 12, and the position of the elastic rubber sealing ring is adjusted to cover the mounting opening 13.

Considering that different experimental tests have different requirements for filtering impurities in water samples, some experiments need to filter micron-sized particle impurities or bacterial microorganisms, for example, when the filtering membrane 23 is a 0.45 μm filtering membrane, the pressure pump is used in combination, and the pressure pump can apply downward pressure to the natural water sample located above the filtering membrane 3, and under the action of the pressure, the natural water sample is filtered by the 0.45 μm filtering membrane to filter the micron-sized particle impurities or bacterial microorganisms. Illustratively, a pressurizing hole is formed in the cover body of the upper bucket body 11 and is communicated with a pressurizing pump through a pipeline, during filtering, the sample collecting bottle 3 is hermetically connected with a liquid outlet of the lower bucket body 12, a natural water sample is added into the upper bucket body 11, the cover body is closed, the switch 13 is opened, and the pressurizing pump is started to perform filtering operation.

In operation, the switch 13 provided between the upper bucket 11 and the lower bucket 12 is closed. Installing the filtering component 2, specifically, laying the filtering membrane 23 on the lower filtering rack 23, and buckling the upper filtering rack 21 on the lower filtering rack 22 to complete the installation of the filtering component 2. Insert installing port 14 with filtering membrane 23's filter assembly 2, connect the liquid outlet of bucket body 12 and the inlet of collection appearance bottle 3 down, perhaps, the liquid outlet of bucket body 12 stretches into collection appearance bottle 3 in, pours the natural water sample of field collection into bucket body 11, opens switch 13, and natural water sample gets into collection appearance bottle 3 after filtering membrane 23 filters in, and impurity stays on filtering membrane 23. When the sample collection bottle 3 is filled with a water sample and the filtration is required to be stopped, the switch 13 is closed, after the sample collection bottle 3 is replaced, the switch 13 is opened again, and the water sample collection is continued; when 23 impurity of filtration membrane influences the filter effect too much, need to change filtration membrane 23, close switch 3, extract filtration subassembly 2, reinstallate filtration membrane 23 or directly change and install reserve filtration subassembly 2 in advance, filtration subassembly 2 changes and accomplishes the back, opens switch 13, continues to gather the water sample.

Compared with the prior art, the water sample collection system that this embodiment provided, through last bucket body 11 with be equipped with switch 13 down between the bucket body 12, switch 13 is used for controlling the communicating state between bucket body 11 and the bucket body 12 down, can interrupt the sampling at any time according to the on-the-spot condition, need not pour unfiltered nature water sample and resample, time has been saved greatly, work efficiency is showing and has been improved, and avoided leading to the production error because of same batch sample divides sampling many times, and then influence the reliability of test result. Through setting up filter assembly 2 into detachable construction, filter assembly 2 demountable installation is in bucket body 12 down promptly, can assemble multiunit filter assembly 2 in advance, when needing to change the filter membrane when the field sampling, and quick replacement filter assembly 2 can be realized to cooperation switch 13, and convenient operation is showing and is improving work efficiency.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. A water sample collecting device comprises a bucket body (1) and a filtering assembly (2), and is characterized in that the bucket body (1) comprises an upper bucket body (11) and a lower bucket body (12), a switch (13) is arranged between the upper bucket body (11) and the lower bucket body (12), and the switch (13) is used for controlling the communication state between the upper bucket body (11) and the lower bucket body (12);

the filtering component (2) is detachably mounted on the lower hopper body (12) and is used for filtering impurities in the natural water sample.

2. The water sample collecting device according to claim 1, wherein the liquid outlet of the lower bucket body (12) is in threaded connection with the liquid inlet of the sample collecting bottle (3), or the liquid outlet of the lower bucket body (12) extends into the sample collecting bottle (3).

3. The water sample collection device according to claim 1, characterized in that the lower bucket body (12) is provided with a mounting opening (14) for mounting the filter assembly (2), and the filter assembly (2) is inserted into the mounting opening (14) and is in seamless contact with the inner wall of the lower bucket body (12).

4. A water sampling device according to claim 3, characterized in that the horizontal projection of the mounting opening (14) is semicircular;

filtering component (2) with the internal diameter of bucket body (12) equals down, filtering component (2) insert behind installing port (14), the horizontal projection of filtering component (2) with the horizontal projection coincidence of bucket body (12) liquid outlet down.

5. The water sample collecting device according to claim 1, characterized in that the upper hopper body (11) and the lower hopper body (12) are connected through a pipeline, and the switch (13) is arranged on the pipeline.

6. The water sample collection device according to claim 3 or 4, wherein the filter assembly (2) comprises an upper filter frame (21), a lower filter frame (22) and a filter membrane (23), and the filter membrane (23) is detachably mounted between the upper filter frame (21) and the lower filter frame (22);

go up filter frame (21) and filter frame (22) down and be hollow out construction, it is equipped with spacing portion (211) to go up filter frame (21), filter frame (22) down is equipped with spacing hole (221), spacing portion (211) insert spacing hole (221).

7. The water sample collecting device according to claim 6, characterized in that the peripheral wall of the lower filter frame (22) is provided with a clamping part (222) clamped on the mounting opening (14) for fixedly supporting the filter assembly (2).

8. The water sample collecting device as claimed in claim 7, characterized in that the inner wall of the lower bucket body (12) is provided with a supporting part, and when the filter assembly (2) is inserted into the mounting opening (14), the lower surface of the edge of the filter assembly (2) is in contact with the upper surface of the supporting part.

9. A water sample collection device according to claim 6 wherein the filter assembly (2) is provided with a handle (24), the handle (24) being provided on the lower filter frame (22).

10. The water sample collecting device as claimed in claim 3, characterized in that a sealing component is further provided, and the sealing component is sleeved on the lower hopper body (12) and covers the mounting opening (14).