CN211527883U

CN211527883U - Columnar sediment sampler

Info

Publication number: CN211527883U
Application number: CN201922058692.6U
Authority: CN
Inventors: 宋香静; 穆泳林
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-18
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to an environmental monitoring auxiliary assembly, concretely relates to column bed mud sample thief. Comprises a hollow inner cylinder and a hollow outer sleeve sleeved outside the inner cylinder; when the device is vertically placed, the top of the inner cylinder is sealed, and one side of the middle lower part of the inner cylinder is provided with an inner cylinder opening; the top of the outer sleeve is open and provided with a detachable top cover, and one side of the middle lower part of the outer sleeve is provided with an outer sleeve opening; the top cover is provided with a through hole; also comprises a handle; one end of the handle is a connecting end, and the connecting end can downwards penetrate through the through hole in the top cover and is detachably connected with the top of the inner cylinder; the other end of the handle is a handheld end, and the size of the handheld end is larger than that of the through hole so as to ensure that the inner barrel cannot fall off from the outer sleeve; the inner and outer sleeves are relatively rotatable about a common central axis to effect opening or closing of the inner sleeve opening. The columnar sediment sampler is simple in structure, low in cost, simple in operation, convenient to carry, high in sampling efficiency and free of damage to the layered structure of the sediment.

Description

Columnar sediment sampler

Technical Field

The utility model relates to an environmental monitoring auxiliary assembly, concretely relates to column bed mud sample thief that is used for river, lake, reservoir and ocean shallow water regional sampling.

Background

Sediment at the bottom of the water body, namely bottom mud, is usually a mixture of clay, silt, organic matters and various minerals, is formed by depositing on the bottom of the water body under the action of a plurality of factors such as hydrology, physics, chemistry, biology and the like for a long time, and each parameter of the sediment is an effective index of the pollution degree of the water body. Efficient collection of deposits is therefore of paramount importance. The bottom mud sampler widely used at present mainly comprises a grab bucket type sampler and a piston type column sampler. The grab bucket type sampler is high in specific gravity, is inserted into bottom mud by means of gravity, is closed by means of gravity in the recovery process, and seals the bottom mud in the device, so that the grab bucket type sampler is complex in operation process, inconvenient to carry, incapable of layering collected samples, susceptible to strong water flow and difficult to collect the samples; piston column sample thief relies on atmospheric pressure to inhale the deposit intraductally, and when sediment water content was higher, because the sample thief lacks interception device, the sediment sample drops easily, is difficult to the collection. The above reasons make the collected sediment not meet the index requirement and the sampling purpose, so that a new effective sediment sampler needs to be designed.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned equipment existence, the utility model provides a simple, the convenient to carry of design, easy operation, the efficient column sediment sample thief of sampling.

The utility model provides a columnar sediment sampler, which comprises a hollow inner cylinder 3 and a hollow outer sleeve 1 sleeved outside the inner cylinder 3; when the device is vertically placed, the top of the inner cylinder 3 is sealed, and an inner cylinder opening 5 is formed in one side of the middle lower part of the inner cylinder 3; the top of the outer sleeve 1 is open and is provided with a detachable top cover 2, and one side of the middle lower part of the outer sleeve 1 is provided with an outer sleeve opening 6; the top cover 2 is provided with a through hole 7;

also comprises a handle 4; one end of the handle 4 is a connecting end which can downwards penetrate through the through hole 7 on the top cover 2 and is detachably connected with the top of the inner barrel 3; the other end of the handle 4 is a handheld end, and the size of the handheld end is larger than that of the through hole 7 so as to ensure that the inner barrel 3 cannot fall off from the outer sleeve 1;

the inner barrel 3 and the outer sleeve 1 are relatively rotatable about a common central axis of the inner barrel 3 and the outer sleeve 1 to effect opening of the inner barrel opening 5, i.e. the inner barrel opening 5 coincides with the outer sleeve opening 6; or closed, i.e. the inner cylinder opening 5 is closed by the side wall of the outer sleeve 1.

Preferably, the difference between the inner diameter of the outer sleeve 1 and the outer diameter of the inner cylinder 3 is just such that the inner cylinder 3 and the outer sleeve 1 can rotate relatively around a common central axis of the inner cylinder 3 and the outer sleeve 1.

Preferably, the inner cylinder 3 and the outer sleeve 1 are identical in shape; the inner barrel opening 5 and the outer sleeve opening 6 are of the same shape.

Preferably, the inner cylinder 3 and the outer sleeve 1 have a cylindrical upper part and an inverted conical lower part. The lower part of the outer sleeve 1 is in an inverted cone shape, so that labor can be saved during bottom mud sampling; the rotary handle 4 drives the inner barrel 3 to rotate to cut off the sample and encapsulate the sample in the cavity, so that the sample is prevented from falling off, the integrity of the sample is ensured, and the sample collection efficiency is improved.

Preferably, the length of the outer sleeve 1 is greater than the length of the inner barrel 3.

Preferably, the top opening of the outer sleeve 1 is screwed or snapped into the cap 2.

Preferably, the connecting end of the handle 4 is in threaded connection or snap connection with the top of the inner barrel 3.

Preferably, the holding end of the handle 4 is in the shape of a transverse rod, the connecting end is in the shape of a vertical rod, and the whole handle is in the shape of a T.

Preferably, the through hole 7 on the top cover 2 is a circular hole and is located at the center of the top cover 2.

Preferably, the outer sleeve 1, the top cap 2, the inner barrel 3 and the handle 4 are all made of stainless steel material. The sampler is made of stainless steel materials, so that the sampler not only provides enough rigidity, but also prolongs the service life.

To sum up, the utility model discloses a column bed mud sample thief has simple structure, low cost, easy operation, convenient to carry, the efficient advantage that just can not destroy bed mud layered structure of sampling.

Drawings

Fig. 1 to 8 schematically show a cylindrical sediment sampler and a composition structure thereof according to an embodiment of the present invention, and it should be understood that the scope of the present invention is not limited thereto.

Fig. 1 is a front view of a cylindrical sediment sampler in an exemplary embodiment of the present invention.

Fig. 2 is a right side view of a cylindrical sediment sampler in an exemplary embodiment of the invention.

Fig. 3 is a top view of a cylindrical sediment sampler in an exemplary embodiment of the invention.

Fig. 4 is a front view of an outer sleeve in an exemplary embodiment of the invention.

Fig. 5 is a right side view of an outer sleeve in an exemplary embodiment of the invention.

Fig. 6 is a front view of an inner barrel in an exemplary embodiment of the invention.

Fig. 7 is a right side view of the inner barrel in an exemplary embodiment of the invention.

Fig. 8 shows a schematic view of a handle with a threaded structure at the connecting end.

Description of reference numerals: 1-outer sleeve, 2-top cover, 3-inner cylinder, 4-handle, 5-inner cylinder opening, 6-outer sleeve opening and 7-through hole.

Detailed Description

The present invention will be further explained in detail with reference to the accompanying drawings. The examples provided herein are for illustration and explanation only and are not intended to limit the scope of the present invention in any way.

As shown in fig. 1, the utility model provides a columnar sediment sampler, which comprises a hollow inner cylinder 3 and a hollow outer sleeve 1 sleeved outside the inner cylinder 3; when the device is vertically placed, the top of the inner cylinder 3 is sealed, and an inner cylinder opening 5 is formed in one side of the middle lower part of the inner cylinder 3; the top of the outer sleeve 1 is open and is provided with a detachable top cover 2, and one side of the middle lower part of the outer sleeve 1 is provided with an outer sleeve opening 6; the top cover 2 is provided with a through hole 7;

The inner diameter of the outer sleeve 1 is larger than the outer diameter of the inner cylinder 3, and after the inner cylinder 3 is inserted into the outer sleeve 1, the top of the outer sleeve 1 is covered and fixed by the top cover 2. The size of the through hole 7 on the top cover 2 is larger than that of the connecting end of the handle 4, the connecting end of the handle 4 penetrates through the through hole 7 downwards and is fixed at the top of the inner barrel 3, and the inner barrel 3 can be driven to rotate through the handheld end of the rotating handle 4. When the inner cylinder 3 rotates relative to the outer sleeve 1 until the inner cylinder opening 5 is coincident with the outer sleeve opening 6, the inner cylinder opening 5 is opened; when the inner cylinder 3 is rotated relative to the outer sleeve 1 until the inner cylinder opening 5 is closed by the outer sleeve 1 side wall, the inner cylinder opening 5 is closed.

In a preferred embodiment, the difference between the inner diameter of the outer sleeve 1 and the outer diameter of the inner cylinder 3 is just such that the inner cylinder 3 and the outer sleeve 1 can rotate relatively around a common central axis of the inner cylinder 3 and the outer sleeve 1.

In a preferred embodiment, the inner cylinder 3 and the outer sleeve 1 are identical in shape; the inner barrel opening 5 and the outer sleeve opening 6 are of the same shape, for example, the outer sleeve 1 and the inner barrel 3 shown in fig. 4 and 6.

In a preferred embodiment, the inner cylinder 3 and the outer sleeve 1 have a cylindrical upper portion and an inverted conical lower portion, as shown in fig. 1, 2 and 4-7.

In some embodiments, the outer sleeve 1 and the inner cylinder 3 have the same shape and different sizes, are integrally cylindrical, have the bottom in an inverted conical shape, are hollow, and have openings on the side surfaces of the middle and lower parts.

In a preferred embodiment, the length of the outer sleeve 1 is greater than the length of the inner barrel 3.

In some embodiments, the top opening of the outer sleeve 1 is screwed or snapped into the top cap 2. The outer edge of the top opening of the outer sleeve 1 and the inner edge of the top cover 2 are respectively provided with mutually matched threads or buckles, so that the detachable connection between the outer sleeve 1 and the top cover 2 is realized.

In some embodiments, the connection end of the handle 4 is threaded or snap-fit with the top of the inner barrel 3. The outer surface of the connecting end of the handle 4 and the groove at the top of the inner barrel 3 are respectively provided with a thread or a buckle which are mutually matched, so that the detachable connection between the handle 4 and the inner barrel 3 is realized.

In some embodiments, the cap 2 is connected to the top of the outer sleeve 1 by a screw, and the handle 4 is connected to the inner barrel 3 by a screw or a snap.

In some embodiments, the handle 4 has a horizontal rod-shaped holding end and a vertical rod-shaped connecting end, and the whole handle is T-shaped, as shown in fig. 2, 7 and 8.

In other embodiments, the handle 4 may have a ring-like, pie-shaped, or any other shape suitable for grasping and rotation.

In a preferred embodiment, the through hole 7 in the top cover 2 is a circular hole and is located in the center of the top cover 2, as shown in fig. 3.

In a preferred embodiment, the outer sleeve 1, the cap 2, the inner barrel 3 and the handle 4 are all made of stainless steel material.

The utility model discloses a column bed mud sample thief, the application method is:

(1) inserting the inner barrel 3 to which the handle 4 is not connected into the outer sleeve 1 to which the top cover 2 is not connected;

(2) connecting the top cover 2 of the outer sleeve 1 to the top of the outer sleeve 1, and downwards penetrating the connecting end of the handle 4 through the through hole 7 on the top cover 2 and connecting the connecting end with the top of the inner cylinder 3;

(3) the inner cylinder 3 is driven to rotate relative to the outer sleeve 1 by rotating the handle 4, so that the position of the inner cylinder opening 5 is coincided with that of the outer sleeve opening 6;

(4) vertically inserting a sampler into the sediment, rotating a handle 4 to drive an inner cylinder 3 to cut the sediment, and then continuously rotating until an opening 5 of the inner cylinder is completely sealed by the side wall of an outer sleeve 1, so that the sediment is sealed in a cavity, and the opening 5 of the inner cylinder is ensured to be in a sealed state;

(5) slowly pulling the sampler out of the water surface, rotating the handle 4 to enable the inner cylinder opening 5 and the outer sleeve opening 6 to coincide, transferring the sediment into a sample bag or a sample bottle, and finishing sediment collection.

In some embodiments, the utility model provides a columnar sediment sampler, which consists of an outer sleeve 1 and an inner cylinder 3, wherein the inner diameter of the outer sleeve 1 is larger than the outer diameter of the inner cylinder 3, the inner length of the outer sleeve 1 is larger than the outer length of the inner cylinder 3, and the two parts are mutually adaptive; a top cover 2 with a screw is screwed on the top of the outer sleeve 1, and an opening is formed in the middle lower part of the outer sleeve 1; a handle 4 with a screw at the bottom is screwed on the top of the inner cylinder 3, and an opening is arranged at the middle lower part of the inner cylinder 3; the inner cylinder 3 is inserted into the outer sleeve 1 from the top of the outer sleeve 1 with the top cover 2, and the outer sleeve 1 is matched with the inner cylinder 3 in shape; a round hole matched with the handle 4 is formed in the central shaft of the top cover 2; the outer sleeve 1, the top cover 2 of the top of the outer sleeve, the inner cylinder 3 and the handle 4 of the top of the inner cylinder are all made of stainless steel materials. When the sampler is used, the outer sleeve 1 is inserted into sediment, the handle 4 is rotated to drive the inner cylinder 3 to cut the sediment, and the sediment is sealed in the cavity, so that a columnar sediment sample cannot slide off from the sampler; the top cover 2 at the top of the outer sleeve seals the inner cylinder 3 in the cavity of the outer sleeve 1, and ensures that the inner cylinder 3 cannot be separated from the outer sleeve 1 in operation.

Claims

1. A columnar sediment sampler is characterized in that: comprises a hollow inner cylinder (3) and a hollow outer sleeve (1) sleeved outside the inner cylinder (3); when the device is vertically placed, the top of the inner cylinder (3) is sealed, and an inner cylinder opening (5) is formed in one side of the middle lower part of the inner cylinder (3); the top of the outer sleeve (1) is open and is provided with a detachable top cover (2), and one side of the middle lower part of the outer sleeve (1) is provided with an outer sleeve opening (6); the top cover (2) is provided with a through hole (7);

also comprises a handle (4); one end of the handle (4) is a connecting end, and the connecting end can downwards penetrate through a through hole (7) in the top cover (2) and is detachably connected with the top of the inner cylinder (3); the other end of the handle (4) is a handheld end, and the size of the handheld end is larger than that of the through hole (7) so as to ensure that the inner barrel (3) cannot fall off from the outer sleeve (1);

the inner cylinder (3) and the outer sleeve (1) are relatively rotatable around a common central axis of the inner cylinder (3) and the outer sleeve (1) to achieve opening of the inner cylinder opening (5), i.e. the inner cylinder opening (5) coincides with the outer sleeve opening (6); or closed, i.e. the inner cylinder opening (5) is closed by the side wall of the outer sleeve (1).

2. The cylindrical sediment sampler of claim 1, wherein: the difference between the inner diameter of the outer sleeve (1) and the outer diameter of the inner cylinder (3) is just such that the inner cylinder (3) and the outer sleeve (1) can rotate relatively around the common central axis of the inner cylinder (3) and the outer sleeve (1).

3. The cylindrical sediment sampler of claim 1, wherein: the inner cylinder (3) and the outer sleeve (1) are the same in shape; the inner barrel opening (5) and the outer sleeve opening (6) are identical in shape.

4. The cylindrical sediment sampler of claim 3, wherein: the upper parts of the inner cylinder (3) and the outer sleeve (1) are cylindrical, and the lower parts of the inner cylinder and the outer sleeve are in an inverted conical shape.

5. The cylindrical sediment sampler of claim 1, wherein: the length of the outer sleeve (1) is greater than that of the inner cylinder (3).

6. The cylindrical sediment sampler of claim 1, wherein: the top opening of the outer sleeve (1) is in threaded connection or buckled connection with the top cover (2).

7. The cylindrical sediment sampler of claim 1, wherein: the connecting end of the handle (4) is in threaded connection or buckled connection with the top of the inner barrel (3).

8. The cylindrical sediment sampler of claim 1, wherein: the handheld end of handle (4) is horizontal rod-shaped, and the link is the montant form, and whole handle is the T font.

9. The cylindrical sediment sampler of claim 1, wherein: the through hole (7) on the top cover (2) is a round hole and is positioned in the center of the top cover (2).

10. The cylindrical sediment sampler of any one of claims 1 to 9 wherein: the outer sleeve (1), the top cover (2), the inner barrel (3) and the handle (4) are all made of stainless steel materials.