CN203758780U - Water sampler for preventing water samples from being contaminated crossly - Google Patents

Abstract

The utility model relates to a water-collecting device for cross-contamination of waterproof samples, which comprises a water-collecting container. A water outlet rubber plug is provided, and the middle part of the water lifting rope is fixedly connected with the water inlet rubber plug. The upper part of the water collection container is provided with an upper handle, which is rotatably connected with the water collection container. The upper handle is connected to the release pull One end of the rope is fixedly connected. The waterproof sample cross-contamination water collector with this structure has a simple structure and is easy to operate. The water collection container is always in a sealed state before it descends to the designated water layer, bypassing the process of water body exchange and avoiding cross-contamination of water samples. ; During the process of raising the water collection container until it is raised to the water surface, due to the design of the sealing cover, the contact between the collected water sample and the external water environment is avoided, thereby also ensuring the cross-contamination of the water sample, and the collected water sample fully meets the experimental requirements. Require.

Description

Water collector for cross-contamination of waterproof samples

technical field

The utility model relates to the technical field of water body sampling, in particular to a water sampling device for cross-contamination of waterproof samples.

Background technique

In the water quality monitoring and investigation of rivers and lakes, especially in deep-water lakes, the collection of water samples at different depths is often involved. The traditional deep-water water sampling device will have water exchange during the work process, and the water samples in each water layer will definitely cross. Pollution, it cannot be guaranteed that the water sample collected is the water layer we need, resulting in sampling errors. In routine water sample collection and analysis, traditional water collectors can already meet our needs, but in molecular biology experiments, the requirements for water samples are more stringent, although there are currently some methods aimed at avoiding cross-contamination of water samples caused by water body exchange. However, its structure is complex and in the process of pulling the water sample out of the water surface, it is difficult to prevent the water sample from contacting other water layers due to the problem of sealing. Therefore, in order to solve the water exchange problem during the sinking process of the water sampler and the sealing problem during the rising process of the water sampler, it is necessary to provide a water sampler that can well avoid cross-contamination of water samples.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings in the prior art, and to provide a water sampling device with good airtightness of the water sampling container, less water body exchange, and waterproof cross-contamination of the collected water samples meeting the experimental requirements.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions for the water sampler of waterproof cross-contamination:

The main feature of the waterproof cross-contamination water sampling device is that it includes a water sampling container, the upper part of the water sampling container has a water inlet, the water inlet is provided with a water inlet rubber plug, and the water sampling container The lower part of the water outlet has a water outlet, and the water outlet is provided with a water outlet rubber stopper, and the middle part of the water-lifting stay rope is fixedly connected with the water inlet rubber stopper.

The upper part of the water collection container in the waterproof sample cross-contamination water collection device is provided with an upper handle, the upper handle is rotatably connected to the water collection container, and the upper handle is fixedly connected to one end of the release pull cord .

The lower part of the water collection container in the waterproof cross-contamination water collection device is provided with a lower handle, and the lower handle is rotatably connected to the water collection container; The lower handle described above is fixedly connected.

The inner cavity of the water collection container in the water sampling device for cross-contamination of the waterproof sample is provided with a sealing cover near the water inlet. The sealing cover is located below the water inlet of the water collection container. A sheet and a hinge, the silicone sheet is hinged to the inner wall of the water collection container through the hinge.

The inner cavity of the water collection container in the water collection device for cross-contamination of the waterproof sample has a funnel-shaped conical slope near the water outlet, and the upper edge of the funnel-shaped conical slope is connected with the inner side wall of the water collection container. The lower edge of the funnel-shaped conical slope corresponds to the water outlet of the water collection container.

The bottom of the water sampling container in the water sampling device for cross-contamination of waterproof samples is fixedly provided with counterweight iron blocks.

There are 2 or 4 counterweight iron blocks in the water sampler for cross-contamination of the waterproof sample.

The waterproof sample cross-contamination water collector with this structure has a simple structure and easy operation. The water collection container is always in a sealed state until it descends to the designated water layer, bypassing the process of water body exchange and avoiding cross-contamination of water samples. ; When the water collection container rises until the water surface is raised, due to the design of the sealing cover, the contact between the collected water sample and the external water environment is avoided, thereby also ensuring the cross-contamination of the water sample, and the collected water sample fully meets the molecular requirements Requirements for biological experiments.

Description of drawings

Fig. 1 is a schematic cross-sectional view of a water collector of the present invention.

Fig. 2 is a top view of the utility model.

Fig. 3 is the bottom view of the utility model.

Fig. 4 is a top view of the sealing cover of the present invention.

The symbols in the figure are explained as follows:

1 handle

2 release cord

3 Lifting rope

4 Water inlet rubber plug

5 water container

6 sealing cap

7 Funnel-shaped conical slope

8 Outlet rubber plug

9 counterweight iron block

10 lower handle

11 Silicone sheet

12 hinges

Detailed ways

In order to understand the technical content of the present utility model more clearly, the following examples are given in detail.

Please refer to Fig. 1 to Fig. 4, the water sampling device of this waterproof sample cross-contamination comprises water sampling container 5, and the top of water sampling container 5 has water inlet, and water inlet is provided with water inlet rubber stopper 4, and the bottom of water sampling container 5 has A water outlet, the water outlet is provided with a water outlet rubber plug 8, and the middle part of the water-lifting stay rope 3 is fixedly connected with the water inlet rubber plug 4.

The top of the water collection container 5 is provided with an upper handle 1, which is rotatably connected with the water collection container 5, and the upper handle 1 is fixedly connected with one end of the release stay cord 2.

The bottom of water collecting container 5 is provided with lower handle 10, and lower handle 10 is rotatably connected with water collecting container 5;

The inner cavity of the water collection container 5 is provided with a sealing cover 6 near the water inlet, and the sealing cover 6 is located below the water inlet of the water collection container 5. The sealing cover 6 includes a silica gel sheet 11 and a hinge 12, and the silica gel sheet 11 passes through the hinge. 12 is hinged with the inwall of water collecting container 5.

The inner cavity of the water collection container 5 has a funnel-shaped conical slope 7 near the water outlet, the upper edge of the funnel-shaped conical slope 7 is connected with the inner sidewall of the water collection container 5, and the lower edge of the funnel-shaped conical slope 7 corresponds to the water collection container 5 at the water outlet.

The bottom of the water collection container 5 is fixedly provided with counterweight iron blocks 9, and the counterweight iron blocks can be 2 or 4.

Before collecting water samples, check that the release pull rope 2 is fastened to the upper handle 1, the water lifting pull rope 3 is fastened to the water inlet rubber plug 4 and the lower handle 10, and the water inlet rubber plug 4 and the water outlet rubber plug 8 are respectively placed in the inlet Water inlet and outlet. Holding the release stay cord 2, the water collector is slowly sunk into the water required to collect samples, and the release speed of the stay cord 3 for keeping the water is always faster than that of the release stay cord 2. By observing the scale above the release stay cord 2, the water collector reaches the required water collection layer, and at this time, lift the water lift stay cord 3 upwards, so that the water inlet rubber plug 4 is separated from the water inlet, and the water sample is filled with the water collection container 5. , the water picker is proposed to the water surface by pulling the water stay rope 3. Pull out the water outlet rubber stopper 8 after proposing the water surface and collect the water sample in the sampling bottle.

The waterproof sample cross-contamination water collector with this structure has a simple structure and easy operation. The water collection container is always in a sealed state until it descends to the designated water layer, bypassing the process of water body exchange and avoiding cross-contamination of water samples. ; When the water collection container rises until the water surface is raised, due to the design of the sealing cover, the contact between the collected water sample and the external water environment is avoided, thereby also ensuring the cross-contamination of the water sample, and the collected water sample completely meets the molecular requirements Requirements for biological experiments.

In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.

Claims (7)

1. the hydrophore of an anti-water sample cross pollution, it is characterized in that, comprise and adopt water receptacle, the described top of adopting water receptacle has water inlet, described water inlet is provided with water inlet rubber stopper, the described bottom of adopting water receptacle has water delivering orifice, and this water delivering orifice is provided with water delivering orifice rubber stopper, and the middle part of water lift stay cord is fixedly connected with described water inlet rubber stopper.

2. the hydrophore of anti-water sample cross pollution according to claim 1, it is characterized in that, the described top of adopting water receptacle is provided with up knob, and described up knob is adopted water receptacle for to be connected turnably with this, and described up knob is fixedly connected with the one end that discharges stay cord.

3. the hydrophore of anti-water sample cross pollution according to claim 1, is characterized in that, the described bottom of adopting water receptacle is provided with lower handle, and described lower handle is adopted water receptacle for to be connected turnably with described; The lower end of described water lift stay cord is fixedly connected with described lower handle.

4. the hydrophore of anti-water sample cross pollution according to claim 1, it is characterized in that, the described nearly water inlet of the inner chamber of adopting water receptacle is provided with gland bonnet, sealing lid is positioned at the below of the described water inlet of adopting water receptacle, described gland bonnet comprises silica gel piece and hinge, and described silica gel piece is hinged by described hinge and the described inwall of adopting water receptacle.

5. the hydrophore of anti-water sample cross pollution according to claim 1, it is characterized in that, the described nearly water outlet of the inner chamber of adopting water receptacle has infundibulate circular cone inclined-plane, the upper limb on described infundibulate circular cone inclined-plane is connected with the described madial wall of adopting water receptacle, and the lower edge on described infundibulate circular cone inclined-plane is corresponding to the described water outlet of adopting water receptacle.

6. the hydrophore of anti-water sample cross pollution according to claim 1, is characterized in that, the described bottom of adopting water receptacle is fixedly installed counterweight iron block.

7. the hydrophore of anti-water sample cross pollution according to claim 6, is characterized in that, described counterweight iron block is 2 or 4.