CN201909725U

CN201909725U - Deepwater bottom sampler

Info

Publication number: CN201909725U
Application number: CN2010206264104U
Authority: CN
Inventors: 陈启慧; 张寒; 陈敏; 董杰英; 齐亮; 王悦
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2010-11-26
Filing date: 2010-11-26
Publication date: 2011-07-27
Anticipated expiration: 2020-11-26

Abstract

The utility model discloses a deepwater bottom sampler, belonging to the sampling field of hydrology and water chemistry, in particular to a device used for collecting a water sample on the bottom layer. The deepwater bottom sampler comprises a sampling barrel and a plunger and is characterized in that a balance weight bottom, a top air outlet, a plunger vent valve, a water inlet and a plunger connecting rod are also comprised, the plunger connecting rod is welded on the plunger and is inserted in the sampling barrel, the balance weight bottom is arranged at the bottom part of the sampling barrel, the top air outlet is arranged at the top part of the sampling barrel, the water inlet is arranged at the lower end of the sampling barrel, the plunger vent valve is arranged at the top part of the plunger. The deepwater bottom sampler has the advantages that the whole device collects the water sample by self-weigh, water pressure and air pressure, the device is simple and convenient, and the bottom water sample can be obtained accurately.

Description

A kind of deep water bottom sampler

Technical field

A kind of deep water bottom sampler of the utility model belongs to hydrology water chemistry sampling field, relates in particular to the device that is used to gather the bottom water sample.

Background technology

In deep water sampling field, the sample devices of use generally is a sampling bottle at present, and the bottle submerged is filled water in the bottom by the stay cord uncap, perhaps uses the structure of long similar syringe to draw at water-bed layer.For the shortcoming of dragline type is easily to enter sampling bottle when sampling bottle is being mentioned other water layers in the process after water is filled in the bottom the water capacity, and sampling bottle dead weight deficiency, inconveniently samples in the bigger water of flow velocity.Though the sample devices of syringe cylinder structure does not have above defective, syringe cylinder structure is difficult to reach bottom, complicated operation when the depth of water is dark.

Therefore need be a kind of easy and simple to handle, the free of contamination depth sampler of sampling.

Summary of the invention

The utility model is just providing a kind of deep water bottom sampler, in order to solve the difficulty that water sample is gathered in the deep water bottom.

Particularly a kind of deep water bottom sampler of the utility model comprises sampling bucket, piston, it is characterized in that, also comprises: at the bottom of the counterweight, and the top vent port, the piston vent valve, the inlet opening, piston rod,

Described piston rod is welded on the piston, inserts in the sampling bucket, places sampling bucket bottom at the bottom of the counterweight, and the top vent port is opened at sampling bucket top, and open in sampling bucket lower end the inlet opening, and the piston exhaust valve open is at top land.

Described piston vent valve comprises deadweight venting plug and vent port.

Its principle of work is as follows:

Rope is set with the sampling thief submerged on the piston rod, in the process of submerged, because the effect of sampling bucket deadweight, piston is pulled to sampling bucket top, is full of air or water in the sampling bucket.

When sampling bucket sinks to the bottom, payout, the piston of sampling thief is sliding into the bottom under the deadweight effect in the sampling bucket, and the deadweight venting plug in the piston vent valve rises, and opens vent port, and air or water in the sampling bucket are discharged from the piston vent valve.

Slowly mention rope, rope pulling piston, the deadweight venting plug in the piston vent valve falls closed grate hole, and the bottom water body that needs to gather enters in the sampling bucket from water inlet under pressure.

Pull on the running rope rope, piston is stuck in sampling bucket top, is suggested the water surface, and water is stayed under the atmospheric pressure effect in the sampling bucket, puts into sampling jar then, finishes sampling process.

The utlity model has following advantage:

1, entire equipment is gathered water sample by deadweight and hydraulic pressure air pressure, and is simple and convenient;

2, can accurately obtain the bottom water sample.

Description of drawings

Fig. 1 is a main shaft diagrammatic cross-section of the present utility model;

Fig. 2 is a schematic top plan view of the present utility model.

Embodiment

Embodiment one

As Fig. 1, a kind of deep water bottom sampler of the utility model shown in Figure 2 comprises sampling bucket 1, piston 3, it is characterized in that, also comprises: at the bottom of the counterweight 7, and top vent port 4, piston vent valve 5, inlet opening 6, piston rod 2,

Described piston rod 2 is welded on the piston 3, inserts in the sampling bucket 1, and 7 place sampling bucket 1 bottom at the bottom of the counterweight, and top vent port 4 is opened at sampling bucket 1 top, and open in sampling bucket 1 lower end inlet opening 6, and piston vent valve 5 is opened at piston 3 tops.

Described piston vent valve 5 comprises deadweight venting plug 51 and vent port 52.

Its principle of work is as follows:

Rope is set with the sampling thief submerged on the piston rod 2, in the process of submerged, because the effect of sampling bucket 1 deadweight, piston 3 is pulled to sampling bucket 1 top, is full of air or water in the sampling bucket 1.

When sampling bucket 1 sinks to the bottom, payout, the piston 3 of sampling thief is sliding into the bottom under the deadweight effect in sampling bucket 1, and the deadweight venting plug 51 in the piston vent valve 5 rises, and opens vent port 52, and air in the sampling bucket 1 or water are discharged from piston vent valve 5.

Slowly mention rope, rope pulling piston 3, the deadweight venting plug 51 in the piston vent valve 5 falls closed grate hole 52, and the bottom water body that needs to gather enters in the sampling bucket from water inlet 6 under pressure.

Pull on the running rope rope, piston 3 is stuck in sampling bucket 1 top, is suggested the water surface, and water is stayed under the atmospheric pressure effect in the sampling bucket 1, puts into sampling jar then, finishes sampling process.

Claims

1. a kind of deep water bottom sampler of the utility model comprises sampling bucket, piston, it is characterized in that, also comprises: at the bottom of the counterweight, and the top vent port, the piston vent valve, the inlet opening, piston rod,

2. a kind of deep water bottom sampler according to claim 1 is characterized in that: described piston vent valve comprises deadweight venting plug and vent port.