CN220454914U

CN220454914U - Sediment sampling device

Info

Publication number: CN220454914U
Application number: CN202322278740.9U
Authority: CN
Inventors: 梅峥; 徐贺超; 关喜才; 关莉莉; 杨春景; 孟苗苗; 李�瑞; 张雪锋; 段舒予; 赵东阳
Original assignee: Yellow River Conservancy Technical Institute
Current assignee: Yellow River Conservancy Technical Institute
Priority date: 2023-08-24
Filing date: 2023-08-24
Publication date: 2024-02-06
Anticipated expiration: 2033-08-24

Abstract

A sediment sampling device comprises a sampling barrel, a guide pipe and a sealing device; one end of the sampling bucket is open, the sampling bucket is coaxially connected with a guide pipe, both ends of the guide pipe extend out of the sampling bucket, a movable shaft, the both ends of which extend out of the guide pipe, is inserted into the guide pipe, a sealing device capable of sealing the open end of the sampling bucket is arranged between one end, corresponding to the open end of the sampling bucket, of the movable shaft and the guide pipe, and the other end of the movable shaft is in threaded connection with the guide pipe; the sealing device comprises an annular cloth sleeve sleeved on the movable shaft, one end of the annular cloth sleeve is rotationally connected with the movable shaft through the annular sleeve, the other end of the annular cloth sleeve is fixedly connected with the guide pipe, and a folding mechanism for expanding or contracting the annular cloth sleeve is arranged between the annular sleeve and the guide pipe; the utility model has simple structure and convenient use, is not only suitable for sediment sampling with high water content, but also suitable for sediment sampling with low water content and even dry sediment sampling.

Description

Sediment sampling device

Technical Field

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

Background

In the well known river course governance hydraulic engineering, how to utilize sediment resources in the river course is an important research direction in recent years, for example, special curing agents are doped in sediment to cure the sediment, so that the river course governance hydraulic engineering can be used for river course revetment construction or dykes and dams construction; in the research process of the curing agent, sediment samples are required to be extracted from river channels, no special sediment sampling device exists in the market at present, most of sediment is sampled by using a sleeve-shaped soil sampler, sediment is different from soil, has poor viscosity and is not easy to form, sampling failure occurs frequently when the sediment is sampled by the existing soil sampler, and especially for sediment lands with lower water content, the existing soil sampler cannot sample; therefore, a special sediment sampling device is required to be designed so as to improve the sediment sampling success rate;

chinese patent (publication number: CN114062017 a) discloses a runoff sediment sampling device for soil and water conservation research, which includes an outer cylinder, an inner cylinder, a connecting seat and a handle; a switch component capable of sealing the lower end opening of the inner cylinder is also arranged in the outer cylinder; however, the switch assembly is complex in structure and high in assembly difficulty.

Disclosure of Invention

In order to overcome the defects in the background technology, the utility model discloses a sediment sampling device.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:

a sediment sampling device comprises a sampling barrel, a guide pipe and a sealing device; one end of the sampling bucket is open, the sampling bucket is coaxially connected with a guide pipe, both ends of the guide pipe extend out of the sampling bucket, a movable shaft, the both ends of which extend out of the guide pipe, is inserted into the guide pipe, a sealing device capable of sealing the open end of the sampling bucket is arranged between one end, corresponding to the open end of the sampling bucket, of the movable shaft and the guide pipe, and the other end of the movable shaft is in threaded connection with the guide pipe;

the sealing device comprises an annular cloth sleeve sleeved on a movable shaft, one end of the annular cloth sleeve is connected with the movable shaft in a rotating mode through the annular sleeve, the other end of the annular cloth sleeve is fixedly connected with a guide pipe, a folding mechanism used for enabling the annular cloth sleeve to be unfolded or contracted is arranged between the annular sleeve and the guide pipe, the folding mechanism comprises a plurality of folding units distributed along annular intervals, the folding units comprise two connecting rods with one ends corresponding to the connecting rods in a hinged mode, one connecting rod is corresponding to the guide pipe in a hinged mode, and the other connecting rod is corresponding to the annular sleeve in a hinged mode.

Preferably, the guide pipe body is movably sleeved with a striking hammer.

Preferably, the guide tube is provided with a support disc corresponding to the top of the sampling barrel.

Preferably, a handle is arranged at one end of the movable shaft far away from the sealing device.

Preferably, the movable shaft is provided with a pointed cone at one end corresponding to the sealing device.

Preferably, the sampling barrel is of a transparent structure.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

the sediment sampling device disclosed by the utility model is simple in structure and convenient to use; when the sampling bucket is inserted into the sediment field, the movable shaft is reversely screwed, so that the movable shaft drives the movable sleeve to be close to the guide pipe, the folding mechanism is folded, the two connecting rods are prevented from being overlapped, the annular cloth sleeve is unfolded, the open end of the sampling bucket is further closed, the sampling bucket can be lifted upwards, sediment sampling is completed, and the sampling bucket is not only suitable for sediment sampling with high water content, but also suitable for sediment sampling with low water content even dry; the guiding tube body movable sleeve is provided with the hammering hammer, and in the process of inserting the sampling barrel into the silt field, an operator can hammer the sampling barrel through hammering, so that the sampling barrel is downwardly inserted into the silt field, and the sampling difficulty is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic perspective view of a sealing device;

fig. 3 is a cross-sectional view of the closure.

In the figure: 1. a sampling barrel; 2. a guide tube; 3. a sealing device; 3-1, a loop; 3-2, annular cloth cover; 3-3, connecting rod; 4. a movable shaft; 5. beating a hammer; 6. a support plate; 7. a handle; 8. and (5) a pointed cone.

Detailed Description

The present utility model will be explained in detail by the following examples, and the purpose of the present utility model is to protect all technical improvements within the scope of the present utility model, and in the description of the present utility model, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., only correspond to the drawings of the present application, and in order to facilitate description of the present utility model, it is not necessary to indicate or imply that the apparatus or element referred to has a specific orientation.

Embodiment 1, with reference to fig. 1 to 3, a sediment sampling device comprises a sampling barrel 1, a guide pipe 2 and a sealing device 3; one end of the sampling barrel 1 is opened, namely, the sampling barrel 1 can be opened downwards when in use and is inserted into a silt field; the sampling barrel 1 is coaxially connected with a guide pipe 2 of which both ends extend out of the sampling barrel 1, a movable shaft 4 of which both ends extend out of the guide pipe 2 is inserted into the guide pipe 2, a sealing device 3 capable of sealing the open end of the sampling barrel 1 is arranged between one end of the movable shaft 4 corresponding to the open end of the sampling barrel 1 and the guide pipe 2, the other end of the movable shaft 4 is in threaded connection with the guide pipe 2, namely, the guide pipe 2 can be kept motionless, and the movable shaft 4 is screwed, so that the movable shaft 4 moves axially relative to the guide pipe 2;

the sealing device 3 comprises an annular cloth sleeve 3-2 sleeved on a movable shaft 4, one end of the annular cloth sleeve 3-2 is rotatably connected with the movable shaft 4 through an annular sleeve 3-1, the other end of the annular cloth sleeve 3-2 is fixedly connected with a guide pipe 2, a folding mechanism for expanding or contracting the annular cloth sleeve 3-2 is arranged between the annular sleeve 3-1 and the guide pipe 2, the folding mechanism comprises a plurality of folding units distributed at intervals along the annular direction, each folding unit comprises two connecting rods 3-3 with one end correspondingly hinged, one connecting rod 3-3 is correspondingly hinged with the guide pipe 2, and the other connecting rod 3-3 is correspondingly hinged with the annular sleeve 3-1;

before the sampling bucket 1 is inserted into the sediment field, the movable shaft 4 can be screwed to enable the movable shaft 4 to drive the movable sleeve 3-1 to be far away from the guide pipe 2, the folding mechanism is unfolded, and the annular cloth sleeve 3-2 is tightened; when the sampling bucket 1 is inserted into a sediment field, the movable shaft 4 is reversely screwed, so that the movable shaft 4 drives the movable sleeve 3-1 to be close to the guide pipe 2, the folding mechanism is folded, the two connecting rods 3-3 are prevented from overlapping, the annular cloth sleeve 3-2 is unfolded, the open end of the sampling bucket 1 is further closed, and the sampling bucket 1 can be lifted upwards to finish sediment sampling; after taking out the sediment sample, the folding mechanism is unfolded again, and the sediment sample taken out by the sampling bucket 1 can be dumped.

Embodiment 2, with reference to fig. 1 to 3, is different from embodiment 1 in that, on the basis of embodiment 1, a driving hammer 5 is movably sleeved on the pipe body of the guide pipe 2, that is, in the process of inserting the sampling barrel 1 into a silt field, an operator can strike the sampling barrel 1 through the driving hammer 5, so that the sampling barrel 1 is inserted into the silt field downwards; the guide tube 2 is provided with a support disc 6 corresponding to the top position of the sampling barrel 1, namely, the driving hammer 5 can be enabled to strike the support disc 6, the force is indirectly transmitted to the sampling barrel 1, and the driving hammer 5 is prevented from damaging the sampling barrel 1.

In embodiment 3, referring to fig. 1 to 3, in the sediment sampling device, on the basis of embodiment 1 or 2, a handle 7 is disposed at one end of the movable shaft 4 far away from the sealing device 3, that is, the movable shaft 4 can be screwed by the handle 7, or the sampling barrel 1 is pulled up after sampling, so as to reduce the operation difficulty; the movable shaft 4 is provided with a pointed cone 8 at one end corresponding to the sealing device 3, and the pointed cone 8 is used for perforating on the silt floor, so that the friction resistance between the sealing device 3 and the silt floor is reduced, and the sampling operation is facilitated; the sampling bucket 1 is transparent structure, can observe the sample situation in the sampling bucket 1 in the sampling process promptly to make the adjustment in time, improve the success rate of taking a sample.

The utility model has not been described in detail in the prior art, and it is apparent to those skilled in the art that the utility model is not limited to the details of the above-described exemplary embodiments, but that the utility model can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.

Claims

1. A sediment sampling device, which is characterized in that: comprises a sampling barrel (1), a guide pipe (2) and a sealing device (3); one end of the sampling barrel (1) is open, the sampling barrel (1) is coaxially connected with a guide pipe (2) with two ends extending out of the sampling barrel (1), a movable shaft (4) with two ends extending out of the guide pipe (2) is inserted into the guide pipe (2), a sealing device (3) capable of sealing the open end of the sampling barrel (1) is arranged between one end of the movable shaft (4) corresponding to the open end of the sampling barrel (1) and the guide pipe (2), and the other end of the movable shaft (4) is in threaded connection with the guide pipe (2);

the sealing device is characterized in that the sealing device (3) comprises an annular cloth sleeve (3-2) sleeved on the movable shaft (4), one end of the annular cloth sleeve (3-2) is rotatably connected with the movable shaft (4) through the annular sleeve (3-1), the other end of the annular cloth sleeve (3-2) is fixedly connected with the guide pipe (2), a folding mechanism used for enabling the annular cloth sleeve (3-2) to be unfolded or contracted is arranged between the annular sleeve (3-1) and the guide pipe (2), the folding mechanism comprises a plurality of folding units distributed at intervals along the annular direction, each folding unit comprises two connecting rods (3-3) with one ends corresponding to the hinge, one connecting rod (3-3) is correspondingly hinged with the guide pipe (2), and the other connecting rod (3-3) is correspondingly hinged with the annular sleeve (3-1).

2. The sediment sampling device of claim 1, wherein: the guide pipe (2) is movably sleeved with a striking hammer (5).

3. The sediment sampling device of claim 2, wherein: the guide tube (2) is provided with a support disc (6) corresponding to the top of the sampling barrel (1).

4. The sediment sampling device of claim 1, wherein: one end of the movable shaft (4) far away from the sealing device (3) is provided with a handle (7).

5. The sediment sampling device of claim 1, wherein: one end of the movable shaft (4) corresponding to the sealing device (3) is provided with a pointed cone (8).

6. The sediment sampling device of claim 1, wherein: the sampling barrel (1) is of a transparent structure.