CN218444581U - Sediment sampling device - Google Patents

Abstract

The utility model discloses a bottom mud sampling device, which comprises: a sampling structure adapted to the cavity of the box-type bottom mud sampling device, the sampling structure includes a plurality of tubular structures arranged in an array, and connected to each other , and the tubular structure is vertically connected; a negative pressure transfer mechanism; a rubber plug; a lifting mechanism, an opening is provided at the upper end, and the sampling structure can be installed in the opening, and it has a plurality of lifting mechanisms corresponding to the tubular structure. The column and the lifter used to drive the lifting column up and down. Using the sampling structure set in the box-type sediment sampling device, the collected sediment samples are directly and evenly divided into multiple parts, and at the same time, the negative pressure transfer mechanism is used to transfer them to the lifting mechanism, and each tubular structure is sealed by rubber plugs. After the bottom, the lifting mechanism can be used to sample all the tubular structures synchronously. The speed is fast, and it can satisfy the simultaneous sampling of multiple research groups in colleges and universities, improving efficiency and high sample utilization.

Description

Sediment Sampling Device

technical field

The utility model specifically relates to a bottom mud sampling device.

Background technique

Bottom mud refers to the sediment of the water body. In order to study the accumulation, distribution, transformation and migration of pollutants discharged into the water body in the bottom mud, it is necessary to collect bottom mud samples.

Sediment is usually a mixture of clay, silt, organic matter and various minerals. It is formed by depositing at the bottom of the water body after long-term physical, chemical and biological actions and water transport. Sediment with a thickness of 0-15cm on the surface is called Surface sediment, the sediment below 15cm is called deep sediment.

For deep sediment collection, box-type samplers are mostly used at present. Before collecting sediment, use the hook system to keep the two grabs in an open state, and then put the sampler into the water. When the grab touches the bottom mud, the sampler inserts the grab into the bottom mud under the action of gravity, continues to lower the rope, the hook system automatically releases, and then lifts the rope upwards. Under the action of the rope, pulleys and bearings, the two grabs close together to collect bottom mud.

After the bottom mud is collected, most of the bottom mud in the box is manually extracted at present, but because it can only be extracted in stages, and because the water content of the deep-water bottom mud is high, after one extraction, the bottom mud inside It will flow, which will lead to the deviation of the test sample, so the utilization rate of the sediment collected at one time is not high.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of the utility model is to provide a sediment sampling device.

In order to achieve the above object, the utility model provides the following technical solutions:

A sediment sampling device comprising:

The sampling structure is adapted to the cavity of the box-type sediment sampling device, the sampling structure includes a plurality of tubular structures arranged in an array, and are connected to each other, and the tubular structures are arranged vertically;

The negative pressure transfer mechanism is used to transfer the sampling structure and the sediment samples inside, which is detachably arranged at the upper opening of the sampling structure, and makes negative pressure in the tubular structure to absorb the sediment samples in the tubular structure;

A rubber stopper is used to close the lower opening of the tubular structure, and is slidably arranged in the tubular structure;

The lifting mechanism has an opening at its upper end, and the sampling structure can be installed in the opening, and it has a plurality of lifting columns corresponding to the tubular structure and a lifter for driving the lifting columns up and down.

The tubular structure is a square tube arranged in a 3*3 configuration.

A support wall is provided at the opening of the lifting mechanism, and the side wall of the sampling structure can be installed on the support wall.

The opening of the lifting mechanism is provided with a locking mechanism for limiting the sampling structure.

The lifter includes a lifting platform, a lifting mechanism arranged between the lifting platform and the base of the lifting mechanism, and an operating mechanism for driving the lifting mechanism, and the lifting column array is arranged on the lifting platform.

The lifting mechanism is a cross-arm type lifting mechanism.

A buffer layer is provided at the upper end of the lifting column.

Beneficial effects of the utility model: using the sampling structure set in the box-type sediment sampling device, the collected sediment samples are directly and evenly divided into multiple parts, and at the same time, the negative pressure transfer mechanism is used to transfer it to the lifting mechanism. After the bottom of each tubular structure is sealed by the plug, all tubular structures can be sampled synchronously by using the lifting mechanism. The speed is fast, and it can satisfy the simultaneous sampling of multiple research groups in colleges and universities, improving efficiency and high sample utilization rate.

Description of drawings

Fig. 1 is a schematic plan view of a sampling structure of the present invention placed in a box-type sediment sampling device.

Fig. 2 is a structural schematic diagram of the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

As shown in the figure, a sediment sampling device includes:

The sampling structure 2 is adapted to the cavity of the box-type sediment sampling device 1. The sampling structure includes a plurality of tubular structures 3 arranged in an array, and they are connected to each other. The tubular structures are arranged vertically, that is, their The size of the tank is generally the same as the cavity of the box-type sediment sampling device. After it is inserted, the internal cavity can be divided into several identical spaces. In terms of method, this application uses the sampling structure to divide the interior into multiple independent spaces, which is convenient for the subsequent negative pressure transfer mechanism to transfer it, and facilitates the subsequent sampling operation;

The negative pressure transfer mechanism is used to transfer the sampling structure and its internal sediment samples. It is detachably arranged at the upper opening of the sampling structure, and generates negative pressure in the tubular structure to absorb the sediment samples in the sampling structure. The pressure transfer mechanism adopts the negative pressure mechanism of the conventional soil sampling device, which is sealed with the upper opening and uses vacuum to realize the internal negative pressure, so as to maintain the sediment sample in the tubular structure and not easy to fall off. This method can be more convenient Transfer the sediment sample from the box-type sediment sampling device to the lifting mechanism;

The rubber stopper 4 is used to close the lower opening of the tubular structure, and is slidably arranged in the tubular structure. The shifting setting is convenient for the subsequent lifting mechanism to drive the internal sediment sample to rise synchronously, which is convenient for the subsequent sample dividing operation;

Lifting mechanism, its upper end is provided with opening, and described sampling structure can be installed in described opening, and it has a plurality of lifting column 5 that corresponding tubular structure is arranged and is used for driving the lifter of lifting column lifting, and this lifting mechanism mainly uses After the transfer, the sediment samples are sampled in layers, and the lifter drives the lifting column to lift up synchronously, which can realize simultaneous layered sampling of all tubular structures, and is easy to operate.

The tubular structure is a square tube, which is arranged in 3*3, or other numbers, mainly the cavity of the box-type sediment sampling device.

The opening of the lifting mechanism is provided with a support wall, and the side wall of the sampling structure can be installed on the support wall, which can be directly formed by a step formed by the side wall of the lifting mechanism to play a supporting role.

The opening of the lifting mechanism is provided with a locking mechanism for limiting the sampling structure. The locking mechanism can be a latch or a lock, and it only needs to place the opening of the lifting mechanism on the side wall of the sampling structure to form a limited fit. , to prevent it from moving upwards under the action of the lifting column.

The lifter includes a lifting platform 7, a lifting mechanism 8 arranged on the base of the lifting platform and the lifting mechanism, and an operating mechanism for driving the lifting mechanism. The lifting column array is arranged on the lifting platform.

The lifting mechanism is a structure such as a cross-arm lifting mechanism or a cylinder, and it only needs to be able to realize its axial displacement change, and use it to drive the entire lifting platform up and down.

The upper end of the lifting column is provided with a buffer layer 6 to prevent the lifting column from directly damaging the rubber plug, or directly use the buffer layer as a practical rubber plug, use the negative pressure transfer mechanism to transfer the sampling mechanism to the lifting mechanism, and push the buffer layer into the tubular structure , to achieve sealing.

The embodiment should not be regarded as limiting the utility model, but any improvement based on the spirit of the utility model should be within the protection scope of the utility model.

Claims (7)

1. The utility model provides a sediment sampling device which characterized in that: it includes:

the sampling structure (2) is matched with the containing cavity of the box type bottom sediment sampling device (1), the sampling structure (2) comprises a plurality of tubular structures (3) which are arranged in an array and connected with one another, and the tubular structures are arranged in a vertically through manner;

the negative pressure transfer mechanism is used for transferring the sampling structure (2) and the sediment sample in the sampling structure (2), is detachably arranged at the upper opening of the sampling structure (2), and enables negative pressure to be generated in the tubular structure (3) to adsorb the sediment sample in the tubular structure (3);

the rubber plug (4) is used for sealing the lower opening of the tubular structure (3) and can be arranged in the tubular structure (3) in a sliding manner;

the upper end of the lifting mechanism is provided with an opening, the sampling structure can be arranged in the opening and is provided with a plurality of lifting columns (5) corresponding to the tubular structures (3) and a lifter for driving the lifting columns (5) to lift.

2. The sediment sampling device of claim 1, wherein: the tubular structure (3) is a square tube and is 3 x 3 arranged.

3. The sediment sampling apparatus of claim 1, wherein: the opening of the lifting mechanism is provided with a supporting wall, and the side wall of the sampling structure (2) can be arranged on the supporting wall.

4. The sediment sampling apparatus of claim 1, wherein: and a locking mechanism for limiting the sampling structure is arranged at the opening of the lifting mechanism.

5. The sediment sampling device of claim 1, wherein: the lifter comprises a lifting table top (7), a lifting mechanism (8) arranged between the lifting table top (7) and a base of the lifting mechanism, and an operating mechanism used for driving the lifting mechanism to act, wherein the lifting columns are arranged on the lifting table top in an array mode.

6. The sediment sampling apparatus of claim 5, wherein: the lifting mechanism (8) is a cross arm type lifting mechanism.

7. The sediment sampling device of claim 1, wherein: the upper end of the lifting column is provided with a buffer layer (6).

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