Sampler for water bodies with different depths

Abstract

The utility model provides a sampler for water bodies of different depths, which comprises a sampling barrel, a cover plate and a switch lever, the bottom of the sampling barrel is provided with a sealing port with a sealing cover, the top of the sampling barrel is fixedly provided with an extension pipe communicated with the sampling barrel, the top end of the extension pipe is provided with an air outlet hole, and the extension pipe is fixedly connected with a hinge seat. A sampling tube is fixedly connected to the side wall of the sampling barrel, one end of the cover plate is hinged to the sampling barrel, the other end of the cover plate is fixedly connected with a first spring, the first spring is fixed to the sampling barrel, the cover plate covers a tube opening of the sampling tube, the switch rod is hinged to the hinge seat, and a diaphragm covering the inner tube opening of the sampling tube is fixedly arranged in the sampling barrel. And liquid with density smaller than that of water is filled in the diaphragm. Through the cover plate and the switch rod which are arranged on the sampling barrel, the sampling barrel can be automatically opened when reaching the preset depth and can be automatically closed after sampling is completed, so that the steps of manual operation are reduced, and the sampling efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water body sampling, in particular to a sampler for water bodies at different depths. Background Art

[0002] Currently, hydrological surveys and water quality testing often require collecting samples from water bodies at varying depths. Existing water sampling devices are often complex, inconvenient to operate, and struggle to protect samples from environmental influences during the sampling process. This is especially true when sampling from deep water, where water pressure and sampling barrel design often hinder the ability to maintain a tight seal and ensure sample purity.

[0003] Most traditional water sampling buckets lack automatic opening and closing functions and require manual control, which not only increases sampling difficulty but also may lead to sample contamination. Furthermore, after sampling, existing sampling buckets often have difficulty completely draining the sample, affecting subsequent use. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a water sampler with different depths. In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0005] A water sampler for different depths includes a laser transmitter, a laser receiver, an alarm, a hose, a hard sleeve and several fixed cones. The laser transmitter and laser receiver are respectively fixed at the two ends of the slope. The alarm is connected to the laser transmitter and the laser receiver via wires. The hose is arranged between the laser transmitter and the laser receiver along the laser direction. Several hard sleeves are provided and slidably connected to the hoses. The hard sleeves are arranged at intervals. The fixed cones are clamped on the hard sleeves and fixed on the slope, so that the laser can be received by the laser receiver through the hose.

[0006] Furthermore, a second spring located at the end of the extension tube is fixedly connected to the extension tube, and the second spring is fixedly connected to the switch rod.

[0007] Furthermore, a limiting post is fixedly connected to the sampling barrel, the limiting post is located at the end of the cover plate, and the switch rod is located between the limiting post and the cover plate.

[0008] Furthermore, the switch rod is configured as a telescopic rod.

[0009] Furthermore, a rubber sealing gasket is fixedly connected between the cover plate and the tube opening of the sampling tube.

[0010] Furthermore, the liquid of the diaphragm is liquid paraffin.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The cover and switch rod set on the sampling barrel can automatically open when the sampling barrel reaches the predetermined depth and automatically close after the sampling is completed, which reduces the number of manual operations and improves the efficiency and accuracy of sampling;

[0013] 2. The sealing cover at the bottom of the sampling barrel and the first spring design between the cover and the sampling tube ensure good sealing of the sampling barrel when not in operation, thus avoiding leakage or contamination of samples during transportation;

[0014] 3. The sampling barrel is equipped with a diaphragm covering the inner mouth of the sampling tube. The diaphragm is filled with a liquid with a density lower than that of water. This not only prevents external impurities from entering the sampling barrel, but also helps to completely discharge the sample from the sampling barrel after the sampling is completed, simplifying the subsequent processing process.

[0015] 4. The sampling barrel has a simple and reliable structure. The overall design of the sampling barrel is compact and easy to carry and operate, which reduces the technical requirements for sampling personnel and facilitates daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure without water intake in the embodiment of the utility model;

[0018] Figure 2 This is a structural diagram of the water intake process in an embodiment of the present utility model.

[0019] In the above drawings: sampling barrel 1, cover 2, switch rod 3, sealing port 4, extension tube 5, air outlet 6, hinged seat 7, sampling tube 8, first spring 9, diaphragm 10, paraffin 11, water body 12, second spring 13, limit column 14, sealing gasket 15. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to Figure 1 、 Figure 2As shown, a sampler for water bodies of different depths includes a sampling barrel 1, a cover plate 2 and a switch rod 3. The bottom of the sampling barrel 1 is provided with a sealing port 4 with a sealing cover. An extension tube 5 communicating with the sampling barrel 1 is fixed to the top of the sampling barrel 1. An air outlet 6 is provided at the top of the extension tube 5. A hinged seat 7 is fixedly connected to the extension tube 5. A sampling tube 8 is fixedly connected to the side wall of the sampling barrel 1. One end of the cover plate 2 is hinged to the sampling barrel 1, and the other end is fixedly connected to a first spring 9. The first spring 9 is fixed to the sampling barrel 1 so that the cover plate 2 covers the pipe mouth of the sampling tube 8. The switch rod 3 is hinged to the hinged seat 7. One end of the switch rod 3 is located on the inner side of the cover plate 2, and the other end is located at the end of the extension tube 5. A diaphragm 10 covering the inner pipe mouth of the sampling tube 8 is fixed inside the sampling barrel 1. The diaphragm 10 is filled with a liquid with a density less than that of water.

[0022] The core principle of this device is that when no water sample is taken, the state of the sampling barrel 1 is as follows: Figure 1 As shown, the diaphragm 10 in the sampling barrel 1 is filled with a liquid with a density less than that of the water body 12. The bottom sealing opening 4 of the sampling barrel 1 is sealed and can be screwed on. The sampling tube 8 on the side wall of the sampling barrel 1 is closed by the cover plate 2. When taking water samples, Figure 2 As shown, the sampling barrel 1 is placed at a certain depth underwater, and the switch rod 3 is pressed. Under the action of the lever, the end of the switch rod 3 lifts the baffle. At this time, the water sample has a higher density than the liquid in the diaphragm 10 and is separated by the diaphragm 10. The water sample gradually enters the bottom of the sampling barrel 1, and the liquid in the diaphragm 10 enters the extension tube 5. After the sampling is completed, the switch rod 3 is released, and the cover plate 2 is tightened by the first spring 9 to seal the tube mouth of the sampling tube 8. After the sampling barrel 1 leaves the water body 12, the collected water sample is discharged from the sealing port 4 for collection.

[0023] In this embodiment, please refer to Figure 1 、 Figure 2 As shown, the extension tube 5 is fixedly connected to a second spring 13 at the end of the extension tube 5. The second spring 13 is fixedly connected to the switch rod 3. The second spring 13 pushes the switch rod 3 away from the extension tube 5, pressing the switch rod 3 to open the cover 2. After the switch rod 3 is released, the switch rod 3 automatically returns to its original position under the action of the second spring 13, facilitating the sampling operation.

[0024] In this embodiment, please refer to Figure 1 、 Figure 2As shown, the sampling barrel 1 is fixedly connected to a limiting post 14, which is located at the end of the cover plate 2, and the switch rod 3 is located between the limiting post 14 and the cover plate 2. The limiting post 14 has the following functions: first, it maintains the switch rod 3 in a stressed state through the elastic force of the second spring 13, preventing the switch rod 3 from becoming too loose and affecting its use; second, the limiting post 14 tightens the switch rod 3 against the cover plate 2, making it easier to press the switch rod 3 to lift the cover plate 2 to open the sampling port of the sampling tube 8, thus facilitating operation.

[0025] In this embodiment, the switch rod 3 is configured as a telescopic rod. The switch rod 3 is extended by using a multi-section sleeve. When the sampling barrel is sampling at different water depths, the telescopic switch rod 3 is convenient for the operator to press, and is easy to use.

[0026] In this embodiment, please refer to Figure 1 、 Figure 2 As shown, a rubber sealing gasket 15 is fixedly connected between the cover plate 2 and the tube opening of the sampling tube 8. The sealing gasket 15 improves the sealing effect of the cover plate 2 on the sampling tube 8.

[0027] In this embodiment, the liquid in the diaphragm 10 is liquid paraffin 11 .

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A water sampler of different depths, characterized in that: It includes a sampling barrel, a cover and a switch rod. The bottom of the sampling barrel is provided with a sealing port with a sealing cover. An extension tube connected to the sampling barrel is fixed on the top of the sampling barrel. An air outlet is opened at the top of the extension tube. A hinged seat is fixedly connected to the extension tube. The side wall of the sampling barrel is fixedly connected to the sampling tube. One end of the cover is hinged to the sampling barrel, and the other end is fixedly connected to a first spring. The first spring is fixed to the sampling barrel so that the cover is closed on the pipe mouth of the sampling tube. The switch rod is hinged on the hinged seat. One end of the switch rod is located on the inner side of the cover, and the other end is located at the end of the extension tube. A diaphragm covering the inner pipe mouth of the sampling tube is fixedly provided inside the sampling barrel, and the diaphragm is filled with a liquid with a density less than that of water.

2. A water sampler of different depths according to claim 1, characterized in that: The extension tube is fixedly connected to a second spring located at the end of the extension tube, and the second spring is fixedly connected to the switch rod.

3. A water sampler of different depths according to claim 2, characterized in that: A limiting column is fixedly connected to the sampling barrel, the limiting column is located at the end of the cover plate, and the switch rod is located between the limiting column and the cover plate.

4. The water sampler of different depths according to claim 1, characterized in that: The switch rod is configured as a telescopic rod.

5. The water sampler of different depths according to claim 1, characterized in that: A rubber sealing pad is fixedly connected between the cover plate and the pipe opening of the sampling tube.

6. The water sampler of different depths according to claim 1, characterized in that: The liquid of the diaphragm is liquid paraffin.

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