CN212871838U

CN212871838U - Portable deep water sampling device

Info

Publication number: CN212871838U
Application number: CN202021964888.8U
Authority: CN
Inventors: 钟浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-04-02
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a portable deep water sampling device belongs to environmental monitoring equipment technical field. The sampling device comprises a sampling barrel, wherein a lower cover and a filter screen are arranged at the bottom of the sampling barrel, and the lower cover is movably connected with the edge of the bottom of the sampling barrel; the center of the lower cover is provided with a detachable gravity accessory with multi-stage weight. The utility model discloses simple structure, through the difference of water pressure and gravity, water pressure upwards promotes the lower cover, opens the water inlet and to the interior drainage of sampling barrel. According to the gravity accessories with different gravities, the whole sampling device can enter different depths, deep water sample collection in multiple intervals is achieved, and the water sample collection range is expanded. When the telescopic part is pulled upwards after collection, the lower cover moves downwards under the action of water and gravity fittings inside the sampling barrel along with the reduction of water pressure, the edge of the lower cover is connected with the cover brim at the bottom of the sampling barrel to achieve closing, and the outflow of water in the sampling barrel is prevented.

Description

Portable deep water sampling device

Technical Field

The utility model relates to an environmental monitoring equipment technical field, concretely relates to portable deep water sampling device.

Background

The collection, assay and analysis of water samples are important means for water body research and observation of water quality and change at present. According to the principle of arrangement of the surface water monitoring points in water and wastewater monitoring and analysis method (fourth edition), water sampling is determined according to the depth of the water body. When the water depth reaches a certain degree, besides collecting surface water samples, the water samples are also required to be collected in a certain depth under water. At present, China basically collects surface water by manpower nearby and rowing or uses simple gravity water-entering sampling equipment. The gravity water inlet sampling falls through the self weight of the sampler, the sampling depth is limited, deep water multi-stage collection cannot be determined, such as water bodies at stages of 1 meter, 2 meters or 5 meters underwater, the water sample collection range is greatly limited, the representativeness of the water sample is reduced, and the real water quality condition that the experimental result cannot be completely reflected is caused. Most of the existing sampler devices also adopt the gravity principle, but have complex structures.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a simple structure can get into different deep waters, the portable deep water sampling device of quick sampling.

In order to achieve the above purpose, the present invention is realized by the following technical solutions:

a portable deepwater sampling device comprises a sampling barrel, wherein a lower cover and a filter screen are arranged at the bottom of the sampling barrel, and the filter screen is arranged below the lower cover; one side of the lower cover is movably connected with the edge of the bottom of the sampling barrel; the lower cover runs into the sampling barrel to form a water inlet between the lower cover and the bottom of the sampling barrel; the center of the lower cover is provided with a detachable gravity accessory with multi-level weight, and the gravity accessory is arranged at a position close to the center of the sampling barrel; the edge of the bottom of the sampling barrel is provided with a cover brim, and a groove is arranged on the cover brim; the edge of the lower cover is provided with a bulge matched with the groove; the top of the sampling barrel is provided with a telescopic component and an exhaust port, and the exhaust port is provided with a one-way exhaust valve.

Furthermore, one side of the lower cover is movably connected with the bottom edge of the sampling barrel through a hinge piece.

Further, the gravity fitting is in threaded connection with the center of the lower cover.

Furthermore, a silica gel sealing layer is arranged on the cover brim.

Furthermore, the top of the sampling barrel is provided with an upper cover, and the upper cover is connected to the top of the sampling barrel in a threaded manner.

Furthermore, the telescopic part is a telescopic rod or a rope.

Furthermore, scales are arranged on the telescopic part.

Further, the sampling barrel bottom outside is equipped with the external screw thread, be equipped with the internal thread on the filter screen, filter screen threaded connection be in sampling barrel bottom.

The utility model discloses portable deep water sampling device, its beneficial effect lies in:

(1) the deepwater sampling device is simple in structure, and the lower cover is pushed upwards by water pressure through the difference between the water pressure and the gravity, and the water inlet is opened to drain water into the sampling barrel. According to the gravity accessories with different gravities, the whole sampling device can enter different depths, deep water sample collection in multiple intervals is achieved, and the water sample collection range is expanded. When the telescopic part is pulled upwards after collection, the lower cover moves downwards under the action of water and gravity fittings inside the sampling barrel along with the reduction of water pressure, the edge of the lower cover is connected with the cover brim at the bottom of the sampling barrel to achieve closing, and the outflow of water in the sampling barrel is prevented.

(2) The one-way valve is arranged, so that gas in the barrel can be discharged outwards through the one-way valve, and the normal sampling is guaranteed. And be equipped with the silica gel sealing layer on the eaves, produce suction through the hydrone when making it contact with the lower cover, make the sampling bucket further sealed, avoided the water sample of gathering to flow out.

(3) The gravity accessory is fixed with the bottom of the lower cover through threads, is convenient to detach, can be replaced at any time, and achieves water sample collection of multi-level water levels.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of the utility model with the lower cover opened for water collection;

FIG. 2 is a schematic structural view of the present invention showing the closing of the lower cover;

FIG. 3 is a schematic view of the connection between the cover edge and the lower cover;

1 sampling bucket, 2 lower covers, 3 filter screens, 4 upper covers, 5 one-way discharge valve, 6 water inlets, 7 gravity accessories, 8 eaves, 9 grooves, 10 bulges, 11 silica gel sealing layers, 12 telescopic parts.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Example 1

A portable deepwater sampling device is shown in figures 1-3 and comprises a sampling barrel 1, wherein the bottom of the sampling barrel 1 is provided with a lower cover 2 and a filter screen 3, and the filter screen 3 is arranged below the lower cover 2; one side of the lower cover 2 is movably connected with the bottom edge of the sampling barrel 1; the lower cover 2 operates towards the interior of the sampling barrel 1, so that a water inlet 6 is formed between the lower cover 2 and the bottom of the sampling barrel 1; a detachable gravity fitting 7 with multi-stage weight is arranged in the center of the lower cover 2, and the gravity fitting 7 is arranged at a position close to the center of the sampling barrel 1; the edge of the bottom of the sampling barrel 1 is provided with a cover brim 8, and the cover brim 8 is provided with a groove 9; the edge of the lower cover 2 is provided with a bulge 10 matched with the groove 9; the top of sampling bucket 1 is equipped with flexible part 12 and gas vent, be equipped with one-way discharge valve 5 on the gas vent, one-way discharge valve 5 can make the gaseous outwards getting rid of in the bucket, has ensured the normal clear of sampling.

In the utility model, one side of the lower cover 2 is connected with the bottom edge of the sampling barrel 1 through the articulated elements. The hinge is a conventional rotatable hinge as long as the lower cover 2 can be turned upward. However, the selection of the hinged member requires that the downward pressure applied by the hinged member to the lower cover 2 is minimum or zero, so that water samples in different stages can be more accurately taken through the action of the gravity fitting 7 and the water pressure.

In the utility model, the edge of the bottom of the sampling barrel 1 is provided with a cover brim 8, and the cover brim 8 is provided with a groove 9; the edge of lower cover 2 be equipped with recess 9 matched with arch 10 is equipped with the silica gel sealing layer on the eaves 8. When the water fills the entire sampling barrel 1, during the rising process, the water pressure outside the lower cover 2 is reduced, and the gravity fitting 7 inside the lower cover 2 causes the lower cover 2 to fall down and contact the brim 8. The groove 9 of the cover brim 8 and the bulge 10 of the lower cover 2 are mutually matched to form a mutually buckled structure, so that the sampling barrel 1 is sealed; the silica gel sealing layer 11 is added, so that the two are connected more closely through the suction force of water molecules when in contact, and the sampling water is effectively prevented from leaking.

The utility model discloses in, 7 threaded connection of gravity accessory are in lower cover 2 centers, but not only are limited to the center, also can set up the offside of articulated elements on lower cover 2, make the stress point be close to 6 departments of water inlet, faster closure at lower cover 2 when offside setting can make lower cover 2 closed.

The utility model discloses in, 1 top of sampling bucket is equipped with

upper cover

4, 4 threaded connection of upper cover are in 1 top of sampling bucket. The upper cover 4 is convenient to open by setting the upper cover 4, the gravity accessory 7 is convenient to replace, the telescopic part 12 is a telescopic rod or a rope, and scales are arranged on the telescopic part 12. The scale serves as a reference for launching water.

The utility model discloses in, the 1 bottom outside of sampling bucket is equipped with the external screw thread, be equipped with the internal thread on the

filter screen

3, 3 threaded connection of filter screen are in 1 bottom of sampling bucket. The filter screen 3 mainly intercepts larger impurities in water, and the filter screen 3 is detachably arranged and is mainly convenient to replace.

The utility model discloses in, put the bucket of adopting water in the aquatic, lower cover 2 earlier with the surface of water contact and annihilate gradually in the aquatic, along with the water pressure increase of 2 bottoms of lower cover, lower cover 2 is automatic inwards opened, during the water sample gets into the bucket of adopting water, to lifting flexible part 12 afterwards, along with water pressure changes, lower cover 2 closes downwards according to the effect automation of gravity accessory 7. During which a standard gravity fitting 7 needs to be preset. Standard gravity fittings 7 can be chosen such as: a gravity metal 7 with a depth of 1m, a gravity metal 7 with a depth of 2m, a gravity metal 7 with a depth of 5m, and the like. The weight of the gravity fitting 7 varies with the depth of the water.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a portable deep water sampling device which characterized in that: the sampling device comprises a sampling barrel, wherein a lower cover and a filter screen are arranged at the bottom of the sampling barrel, and the filter screen is arranged below the lower cover; one side of the lower cover is movably connected with the edge of the bottom of the sampling barrel; the lower cover runs into the sampling barrel to form a water inlet between the lower cover and the bottom of the sampling barrel; the center of the lower cover is provided with a detachable gravity accessory with multi-level weight, and the gravity accessory is arranged at a position close to the center of the sampling barrel; the edge of the bottom of the sampling barrel is provided with a cover brim, and a groove is arranged on the cover brim; the edge of the lower cover is provided with a bulge matched with the groove; the top of the sampling barrel is provided with a telescopic component and an exhaust port, and the exhaust port is provided with a one-way exhaust valve.

2. The portable deepwater sampling device of claim 1, further comprising: one side of the lower cover is movably connected with the bottom edge of the sampling barrel through a hinge piece.

3. The portable deepwater sampling device of claim 1, further comprising: the gravity fitting is in threaded connection with the center of the lower cover.

4. The portable deepwater sampling device of claim 1, further comprising: and a silica gel sealing layer is arranged on the cover brim.

5. The portable deepwater sampling device of claim 1, further comprising: the top of the sampling barrel is provided with an upper cover, and the upper cover is connected to the top of the sampling barrel in a threaded manner.

6. The portable deepwater sampling device of claim 1, further comprising: the telescopic part is a telescopic rod or a rope.

7. The portable deepwater sampling device of claim 6, further comprising: scales are arranged on the telescopic part.

8. The portable deepwater sampling device of claim 1, further comprising: the sampling barrel is characterized in that external threads are arranged on the outer side of the bottom of the sampling barrel, internal threads are arranged on the filter screen, and the filter screen is in threaded connection with the bottom of the sampling barrel.