CN219161725U

CN219161725U - Liquid layering sampling device

Info

Publication number: CN219161725U
Application number: CN202223178000.XU
Authority: CN
Inventors: 康万里
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-09
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a liquid layered sampling device which comprises an elastic component and a closed water storage cylinder, wherein the water storage cylinder is provided with a water inlet, a traction piece with scales and a one-way valve for exhausting outwards, the fixed end of the elastic component is movably arranged on the water storage cylinder, and the telescopic end of the elastic component is used for sealing the water inlet. The traction piece is held to throw the water storage barrel into liquid to be sampled, and the sinking depth of the water storage barrel is observed through scales of the traction piece. The water pressure and the buoyancy that the water storage barrel receives at different water depths are all different, through setting up the elastic component in the different positions of water storage barrel for the elasticity between elastic component and the water storage barrel can overcome the buoyancy that the water storage barrel receives in different water depths department, thereby open or seal the water inlet, in order to realize the effect to different water depth liquid sampling.

Description

Liquid layering sampling device

Technical Field

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

Background

When the water quality of the ecological environment is monitored and sampled, a water sample with a specific depth needs to be collected through a sampler. Most samplers are not easy to control the sampling depth in the sampling process, and the samplers are easy to collect water samples with specific depth and above the specific depth, so that the collected samples are inaccurate.

Accordingly, there is a need to provide sampling devices for collecting liquids of different depths.

Disclosure of Invention

The utility model aims to provide a liquid layering sampling device which can collect liquid samples with different preset depths and has higher sampling accuracy.

Embodiments of the present utility model are implemented as follows:

the embodiment of the application provides a liquid layering sampling device, including elastic component and confined water storage section of thick bamboo, the water storage section of thick bamboo is equipped with water inlet, takes the traction element of scale and is used for outside exhaust check valve, and elastic component's stiff end movably sets up on the water storage section of thick bamboo, and elastic component's flexible end is used for sealed water inlet.

In some embodiments of the utility model, the direction of expansion of the elastic component is parallel to the axis of the water storage cylinder.

In some embodiments of the utility model, the fixed end of the elastic component includes a mounting member; the telescopic end of the elastic component comprises a spring and a floating piece;

the water storage cylinder is provided with at least one mounting position along the axis for being detachably connected with the mounting piece; one end of the floating piece is used for sealing the water inlet, and the other end of the floating piece is connected with the mounting piece in a sliding way; one end of the spring is connected with the mounting piece, and the other end of the spring is connected with the floating piece.

In some embodiments of the present utility model, the fixed end of the elastic component further includes a fastening bolt; the installation position is a connecting hole penetrating through the side wall of the water storage barrel, the installation piece is provided with a threaded hole matched with a fastening bolt, and the fastening bolt penetrates through the connecting hole and is in threaded connection with the installation piece.

In some embodiments of the present utility model, the outer side wall of the mounting member and the inner side wall of the water storage barrel are both provided with threads, and the water storage barrel is in threaded connection with the mounting member.

In some embodiments of the present utility model, the mounting location is a slot provided on a sidewall of the water storage barrel, and the slot is matched with the mounting piece.

In some embodiments of the present utility model, the water storage cylinder includes a cover and a cylinder, wherein one end of the cylinder is provided with a water inlet, and the other end of the cylinder is provided with a water outlet; the cover body is close to the water outlet and is detachably connected with the cylinder body; the one-way valve is arranged on the cover body.

In some embodiments of the present utility model, the inner side wall of the cover body and the outer side wall of the cylinder body are provided with threads, and the cover body is in threaded connection with the cylinder body.

In some embodiments of the utility model, the water storage cylinder is provided with a thermometer for detecting the temperature of the water sample, and the part of the water storage cylinder close to the thermometer is made of transparent materials.

In some embodiments of the utility model, the end of the water storage cylinder near the water inlet is provided with a filter screen.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

according to the liquid layered sampling device, the traction piece is held to throw the water storage barrel into liquid to be sampled, and the sinking depth of the water storage barrel is observed through scales of the traction piece. The water pressure and the buoyancy that the water storage barrel receives at different water depths are all different, through setting up the elastic component in the different positions of water storage barrel for the elasticity between elastic component and the water storage barrel can overcome the buoyancy that the water storage barrel receives in different water depths department, thereby open or seal the water inlet, in order to realize the effect to different water depth liquid sampling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a liquid layered sampling apparatus according to embodiment 1 of the present utility model;

FIG. 2 is a schematic diagram showing another structure of a liquid layered sampling apparatus according to embodiment 1 of the present utility model;

FIG. 3 is a schematic view showing one of the elastic components of embodiment 1 of the present utility model;

FIG. 4 is a schematic diagram of a liquid layered sampling apparatus according to embodiment 2 of the present utility model;

FIG. 5 is a schematic view showing the structure of the fixed end of the elastic component in embodiment 3 of the present utility model;

FIG. 6 is a schematic view of a structure of a fixed end of an elastic component according to embodiment 4 of the present utility model;

FIG. 7 is a schematic view of the installation site of embodiment 5 of the present utility model;

fig. 8 is a schematic view of another structure of the installation position of embodiment 5 of the present utility model.

Icon: 100. a water storage cylinder; 110. a cover body; 120. a cylinder; 121. a water inlet; 122. a bottom plate; 123. a water outlet; 124. a connection hole; 125. a clamping groove; 200. an elastic component; 210. a fixed end; 211. a mounting member; 2111. a flow hole; 2112. a column; 2113. a bar-shaped hole; 212. a fastening bolt; 220. a telescoping end; 221. a spring; 222. a floating member; 2221. a floating plate; 2222. a support rod; 2223. a mounting table; 223. a sealing gasket; 300. a traction member; 400. a one-way valve; 500. a thermometer; 600. a filter screen; 700. a weight.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, it is merely for convenience in describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present utility model, "plurality" means at least 2.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1, the present embodiment provides a liquid layered sampling device, which includes an elastic assembly 200 and a closed water storage barrel 100, wherein the water storage barrel 100 is provided with a water inlet 121, a traction member 300 with scales, and a check valve 400 for exhausting air outwards, a fixed end 210 of the elastic assembly 200 is movably disposed on the water storage barrel 100, and a telescopic end 220 of the elastic assembly 200 is used for sealing the water inlet 121.

In this embodiment, as shown in fig. 1, the upper side and the side wall of the water storage drum 100 are closed, the water inlet 121 is provided below the water storage drum 100, and the axis of the water inlet 121 may be parallel to or intersect with the axis of the water storage drum 100. Before the water storage barrel 100 is put into the liquid to be sampled, one side of the elastic component 200 away from the telescopic end 220 is arranged on the water storage barrel 100, the installation positions of the elastic component 200 and the water storage barrel 100 are determined according to the depth of the water sample to be collected, for example, when a liquid sample with H water depth needs to be collected, the elastic component 200 is moved to the H position of the water storage barrel 100, the telescopic end 220 of the elastic component 200 is continuously influenced by upward buoyancy in the process that the water storage barrel 100 is sunk to the H water depth, and at the moment, the telescopic end 220 is matched with the water inlet 121, so that the liquid cannot enter the water storage barrel 100; when the water storage barrel 100 moves to the depth of H water, the elasticity of the elastic component 200 and the buoyancy of the elastic component in the depth of H water are balanced, the telescopic end 220 is separated from the water inlet 121, liquid flows into the water storage barrel 100 from the water inlet 121, and the gas in the water storage barrel 100 is extruded by the sampling liquid and then is discharged from the one-way valve 400. During the ascending process of the water storage cylinder 100, the buoyancy force born by the telescopic end 220 of the elastic component 200 is gradually reduced, and the telescopic end 220 is gradually close to the water inlet 121 to finally seal the water inlet 121. When the water storage cylinder 100 is positioned at the water depth of H and below H, the water inlet 121 can be opened. When the liquid sample of the water depth at M is sampled, the elastic assembly 200 is moved to M positions of the water storage drum 100, where M is different from h. The sidewall of the cartridge 100 may be graduated along the axis to mark the location of m and h. In the collection process, an operator holds the traction member 300 to throw the water storage barrel 100 into the liquid to be sampled, the sinking depth of the water storage barrel 100 is judged according to the scales on the traction member 300, the traction member 300 is used for assisting the operator to collect a liquid sample with a specific depth, and the traction member 300 can be a rope, an iron chain, a long straight rod and the like. The outer sidewall of the water storage drum 100 may be provided with a weight 700, and the weight 700 serves to increase the weight of the water storage drum 100 so that the water storage drum 100 smoothly sinks in the liquid.

The fixed end 210 of the elastic component 200 is movably disposed on the water storage barrel 100, the telescopic end 220 of the elastic component 200 is a movable end, when the elastic component 200 is not affected by buoyancy, the elastic component is in a stretched or compressed state, the stretching or compression is determined by the installation position of the elastic component 200, but the elastic force between the elastic component 200 and the water storage barrel 100 is always opposite to the buoyancy direction in both the stretched state and the compressed state.

In detail, the water storage cartridge 100 is in a vertically downward state during sinking, i.e., the axis of the water storage cartridge 100 is vertical. The expansion and contraction direction of the elastic member 200 may be parallel to the axis of the water storage drum 100, and as shown in fig. 1, the expansion and contraction direction of the elastic member 200 is an up-and-down direction, and the elastic member 200 may move up-and-down with respect to the water storage drum 100. The direction of expansion of the resilient assembly 200 may also intersect the axis of the water reservoir 100, as shown in fig. 2.

In the present embodiment, the fixed end 210 of the elastic member 200 may include a mounting member 211; the telescoping end 220 of the spring assembly 200 may include a spring 221 and a float 222; the water storage cartridge 100 is provided with at least one mounting location along the axis for detachable connection with the mounting member 211; one end of the floating piece 222 is used for sealing the water inlet 121, and the other end of the floating piece 222 is connected with the mounting piece 211 in a sliding manner; one end of the spring 221 is connected to the mounting member 211, and the other end of the spring 221 is connected to the floating member 222.

In detail, as shown in fig. 1, the float 222 may include a float plate 2221 and a support bar 2222, the float plate 2221 being in contact with the bottom plate 122 of the water storage cartridge 100, the water inlet 121 being provided on the bottom plate 122, the water inlet 121 being sealed when the float plate 2221 is in contact with the bottom plate 122; when the floating plate 2221 is away from the bottom plate 122, the water inlet 121 is opened. A gasket 223 may be provided at a side of the floating plate 2221 contacting the bottom plate 122 for improving sealability between the floating plate 2221 and the bottom plate 122.

Referring to fig. 1, one end of a support bar 2222 is connected to the floating plate 2221, and the other end of the support bar 2222 is slidably connected to the mount 211. The mounting member 211 may be provided with a through hole that is clearance-fitted with the support bar 2222, and the support bar 2222 may slide axially along the through hole. The spring 221 may be sleeved outside the support bar 2222, one end of the spring 221 is connected to the floating plate 2221, and the other end of the spring 221 is connected to the mounting member 211. When the floating plate 2221 seals the water inlet 121, the spring 221 is in a stretched state, and at this time, the mounting member 211 is fixed with respect to the water storage cartridge 100, the spring 221 applies a downward tension to the floating plate 2221, and the floating plate 2221 is in close contact with the bottom plate 122 under the tension; when the lower end surface of the floating plate 2221 receives upward buoyancy, the buoyancy is greater than the tension of the spring 221, the spring 221 is again stretched, the floating plate 2221 moves upward with the support bar 2222, and the water inlet 121 is opened.

In detail, as shown in fig. 3, in other embodiments, a lower end of the support bar 2222 is connected to the mounting member 211, and an upper end of the support bar 2222 passes through the floating plate 2221 and is slidably connected to the floating plate 2221. The upper end of the support bar 2222 is provided with a mounting table, the spring 221 is sleeved outside the support bar 2222, one end of the spring 221 is abutted with the mounting table, and the other end of the spring 221 is abutted with the floating plate 2221. When the floating plate 2221 seals the water inlet 121, the spring 221 is in a compressed state, and at this time, the mounting member 211 is fixed with respect to the water storage cartridge 100, the spring 221 applies a downward tensile force to the floating plate 2221, and the floating plate 2221 is in close contact with the bottom plate 122 under pressure; when the lower end surface of the floating plate 2221 receives upward buoyancy, the spring 221 is compressed again when the buoyancy is greater than the pressure of the spring 221, the floating plate 2221 moves upward with the support bar 2222, and the water inlet 121 is opened. A column 2112 with graduations may be further disposed below the mounting member 211, and the graduations of the column 2112 and the cylinder 120 are compared, so as to adjust the relative positions of the mounting member 211 and the cylinder 120.

The mounting position may be a through hole penetrating through the sidewall of the water storage drum 100, the number of the through holes is plural, and the through hole is penetrated by a bolt and is in threaded connection with the mounting member 211; the installation position can be a threaded hole formed by arranging threads on the inner side wall of the water storage barrel 100, the outer side wall of the installation piece 211 is also provided with threads, and the installation piece 211 is in threaded connection with the water storage barrel 100; the mounting position may also be a clamping groove 125 formed on the side wall of the water storage barrel 100, the mounting member 211 may be long-strip-shaped, and two ends of the mounting member 211 may be matched with the clamping groove 125. The mounting position is not limited to the above, and the mounting member 211 may be disk-shaped, elongated, or the like, and when the mounting member 211 is disk-shaped, it may be provided with at least one circulation hole 2111 for passing the liquid therethrough; the shape of the mount 211 is not limited.

In this embodiment, as shown in fig. 1, the water storage barrel 100 includes a cover 110 and a barrel 120, one end of the barrel 120 is provided with a water inlet 121, and the other end of the barrel 120 is provided with a water outlet 123; the cover 110 is close to the water outlet 123 and is detachably connected with the cylinder 120; the check valve 400 is provided on the cover 110. In detail, the water inlet 121 is located at the lower end of the cylinder 120, and the water outlet 123 is located at the upper end of the cylinder 120. After the sampling is completed, the water storage barrel 100 is lifted to the ground, at this time, the cover 110 and the barrel 120 can be detached, and the collected liquid is poured out from the water outlet 123. The check valve 400 may be provided on the cover 110. The cover 110 may be in a cone shape, and the traction member 300 is disposed on the cover 110, so that the cover 110 is stressed less when the liquid rises, and the operator can pull the water storage tank 100 conveniently.

The connection between the cover 110 and the cylinder 120 may include a threaded connection, a snap connection, etc.

In this embodiment, the inner side wall of the cover body 110 and the outer side wall of the cylinder 120 may be provided with threads, the cover body 110 is in threaded connection with the cylinder 120, the cover body 110 is sleeved outside the cylinder 120, and the cover body 110 can be mounted or dismounted from the cylinder 120 by rotating the cover body 110. In other examples, the snap-fit connection is implemented as follows: the buckle comprises a female buckle and a male buckle which are matched with each other, the female buckle is arranged on the outer side of the cover body 110, and the male buckle matched with the female buckle is arranged on the outer side of the cylinder 120.

In this embodiment, referring to fig. 1, the water storage barrel 100 is provided with a thermometer 500 for detecting the temperature of the water sample, and the portion of the water storage barrel 100 near the thermometer 500 is made of a transparent material. In detail, a thermometer 500 is fixed to an inner sidewall of the water storage cartridge 100, and the thermometer 500 is used to detect the temperature of the sampling liquid. The water storage drum 100 may be entirely made of a transparent material, or only a portion corresponding to the thermometer 500 may be made of a transparent material so that an operator can observe the indication of the thermometer 500 from the outside of the water storage drum 100. The transparent material can be glass, acrylic and other materials.

In this embodiment, the end of the water storage tube 100 near the water inlet 121 is provided with a filter screen 600. In detail, referring to fig. 1, the screen 600 may be positioned below the water inlet 121, where "below" refers to the lower side in fig. 1. The filter screen 600 can prevent impurities in the sampled liquid from entering the water storage barrel 100 from the water inlet 121, so that the cleanliness of the sampled water sample is ensured. The filter screen 600 is detachably connected with the water storage drum 100, for example, the filter screen 600 is inlaid in the lower end opening of the water storage drum 100, the side wall of the water storage drum 100 is perforated, and ropes are used to pass through the through holes of the filter screen 600 and the side wall of the water storage drum 100 and connect the two.

Example 2

The liquid layered sampling device provided in this embodiment is substantially the same as that in embodiment 1, except that: in the present embodiment, the expansion and contraction direction of the elastic assembly 200 is parallel to the axis of the water reservoir 100. The telescoping end 220 of the spring assembly 200 may include a spring element, which may be a spring 221, against which the spring assembly 200 telescopes. Referring to fig. 1, the number of elastic elements may be 1, in which case the axes of the elastic elements are parallel to the axis of the water storage drum 100, and the expansion and contraction direction of the elastic assembly 200 is parallel to the axis of the water storage drum 100.

As shown in fig. 4, the number of elastic elements may be 2, and the elastic elements are uniformly distributed along the circumferential direction of the water storage barrel 100, at this time, the axes of the elastic elements intersect with the axis of the water storage barrel 100, but the resultant force direction of the 2 elastic elements is parallel to the axis of the water storage barrel 100, so that the elastic assembly 200 may stretch along the axis of the water storage barrel 100. Similarly, the number of elastic elements may be 3 or more, and the elastic assembly 200 can expand and contract along the axis of the water storage drum 100 as long as the resultant force direction of all the elastic elements is parallel to the axis of the water storage drum 100. The mounting member 211 is provided with a bar-shaped hole 2113 which is engaged with the support bar 2222, and the support bar 2222 does not interfere with the mounting member 211 when moving up and down along the axis of the water storage tube 100.

Example 3

The liquid layered sampling device provided in this embodiment is substantially the same as that in embodiment 1, except that: in the present embodiment, as shown in fig. 5, the fixed end 210 of the elastic assembly 200 may further include a fastening bolt 212; the mounting position is a connecting hole 124 penetrating through the side wall of the water storage cylinder 100; the mounting member 211 is provided with a screw hole to be fitted with a fastening bolt 212, and the fastening bolt 212 passes through the connection hole 124 and is screw-coupled with the mounting member 211.

In detail, the axis of the connection hole 124 is perpendicular to the sidewall of the water storage drum 100, the number of the connection holes 124 may be plural, for example, 10, and the arrangement direction of the connection holes 124 is parallel to the axis of the water storage drum 100, each connection hole 124 corresponds to different water depths for collection, for example, the connection hole 124 may be located at h or m of the water storage drum 100, and when the mounting member 211 is fixed at m or h, the extension or compression amount of the spring 221 is different, thereby overcoming the buoyancy of different magnitudes to collect liquid samples of different water depths. The threaded hole axis of the mount 211 is also perpendicular to the side wall of the water reservoir 100. The connecting hole 124 may be located at one side of the water storage barrel 100, and at this time, the depth of the threaded hole of the mounting member 211 may be hollowed to be greater than the distance between the opening of the threaded hole and the center of the mounting member 211, and the mounting member 211 is fixed to the side wall of the water storage barrel 100 by using a longer fastening bolt 212; the connection holes 124 may be located at both sides of the water storage cartridge 100, and at this time, the screw hole depth of the mounting member 211 is shallow, and two shorter fastening bolts 212 are used to fix the mounting member 211 from both sides of the water storage cartridge 100.

Example 4

The liquid layered sampling device provided in this embodiment is substantially the same as that in embodiment 3, except that: in this embodiment, as shown in fig. 6, the outer side wall of the mounting member 211 and the inner side wall of the water storage drum 100 are both provided with threads, and the water storage drum 100 is screwed with the mounting member 211.

In detail, the end surface of the mounting member 211 far from the water inlet 121 may be provided with a handle, and an operator can change the relative position between the mounting member 211 and the water storage barrel 100 by rotating the handle, so that the mounting member 211 moves along the axis of the water storage barrel 100.

Example 5

The liquid layered sampling device provided in this embodiment is substantially the same as that in embodiment 3, except that: in this embodiment, as shown in fig. 7, the mounting position may be a clamping groove 125 provided on a side wall of the water storage barrel 100, and the clamping groove 125 is matched with the mounting member 211. The number of the clamping grooves 125 may be plural and the arrangement direction is parallel to the axial direction of the water storage drum 100. The clamping groove 125 can be positioned on the inner side wall of the water storage barrel 100, the mounting piece 211 can be in a strip shape, two ends of the mounting piece 211 are matched with the clamping groove 125, and the mounting piece 211 can be mounted or detached from the clamping groove 125 by rotating around the axis of the water storage barrel 100.

As shown in fig. 8, the clamping groove 125 may be located on the outer side wall of the water storage barrel 100, at this time, the mounting member 211 may be in a cover shape, the mounting member 211 may be sleeved on the outer side wall of the water storage barrel 100, the inner side wall of the mounting member 211 may be provided with a clamping block matched with the clamping groove 125, and the clamping block may be mounted or dismounted from the clamping groove 125 by rotating the mounting member 211. Pits may be provided in the side walls of the water storage drum 100, the pits forming the clamping grooves 125; a plurality of protruding blocks arranged at intervals can be arranged on the side wall of the water storage barrel 100, and the gaps between the protruding blocks form clamping grooves 125.

In summary, an embodiment of the present utility model provides a liquid layered sampling device, which includes an elastic component 200 and a closed water storage barrel 100, wherein the water storage barrel 100 is provided with a water inlet 121, a traction member 300 with scales, and a check valve 400 for exhausting air outwards, the elastic component 200 is movably disposed on the water storage barrel 100, and a telescopic end 220 of the elastic component 200 is used for sealing the water inlet 121.

In the liquid layered sampling device of the present utility model, the traction member 300 is held to put the water storage barrel 100 into the liquid to be sampled, and the sinking depth of the water storage barrel 100 is observed by the scale of the traction member 300. The water pressure and the buoyancy of the water storage barrel 100 are different at different water depths, and the elastic assembly 200 is arranged at different positions of the water storage barrel 100, so that the elastic force between the elastic assembly 200 and the water storage barrel 100 can overcome the buoyancy of the water storage barrel 100 at different water depths, and the water inlet 121 is opened or sealed, so that the effect of sampling liquid at different water depths is realized.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a liquid layering sampling device, its characterized in that includes elastic component and confined water storage section of thick bamboo, water storage section of thick bamboo is equipped with water inlet, takes the traction element of scale and is used for outwards exhaust check valve, elastic component's stiff end movably sets up on the water storage section of thick bamboo, elastic component's flexible end is used for sealedly the water inlet.

2. The liquid stratified sampling device of claim 1, wherein the direction of expansion of the elastic assembly is parallel to the axis of the water reservoir.

3. The liquid stratified sampling device of claim 1, wherein the fixed end of the elastic assembly comprises a mount; the telescoping end of the elastic assembly comprises a spring and a floating member;

the water storage barrel is provided with at least one mounting position along the axis, and the mounting position is used for being detachably connected with the mounting piece; one end of the floating piece is used for sealing the water inlet, and the other end of the floating piece is connected with the mounting piece in a sliding manner; one end of the spring is connected with the mounting piece, and the other end of the spring is connected with the floating piece.

4. A liquid layered sampling device according to claim 3, wherein the fixed end of the elastic assembly further comprises a fastening bolt; the installation position is a connecting hole penetrating through the side wall of the water storage barrel, the installation piece is provided with a threaded hole matched with the fastening bolt, and the fastening bolt penetrates through the connecting hole and is in threaded connection with the installation piece.

5. A liquid stratified sampling device as claimed in claim 3, wherein the outer side wall of the mounting member and the inner side wall of the water reservoir are provided with threads, and the water reservoir is in threaded connection with the mounting member.

6. A liquid laminar sampling device according to claim 3, in which the mounting location is a slot provided in the side wall of the cartridge, the slot being co-operable with the mounting member.

7. The liquid layered sampling device according to claim 1, wherein the water storage cylinder comprises a cover body and a cylinder body, wherein one end of the cylinder body is provided with the water inlet, and the other end of the cylinder body is provided with a water outlet; the cover body is close to the water outlet and is detachably connected with the cylinder; the one-way valve is arranged on the cover body.

8. The device of claim 7, wherein the cap body inner wall and the barrel outer wall are both threaded, and the cap body is threaded with the barrel.

9. The liquid stratified sampling device according to claim 1, wherein the water storage cylinder is provided with a thermometer for detecting the temperature of the water sample, and a portion of the water storage cylinder near the thermometer is made of a transparent material.

10. The liquid stratified sampling device of claim 1, wherein the end of the water reservoir proximate the water inlet is provided with a screen.