Deep well sampler
By adopting elastic tablet sealing device and conical water inlet in deep well sampler, combined with the principle of communicator and counterweight box, the problem of difficulty in sampling under low water levels of deep well sampler is solved, and effective sample acquisition and reduction are achieved Lost.
Patent Information
- Application Number
- CN202421664744.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Existing deep well samplers are difficult to effectively sample when the water level of the groundwater well is low or the well depth is large, and the seal is unstable, resulting in sample leakage.
A deep well sampler is designed, using an elastic tablet sealing device and a conical water inlet, which can effectively sample under low water levels through the principle of communicator, and accelerate water inlet through the counterweight box.
It is possible to remove samples in areas with low groundwater levels in deep wells, reducing sample leakage, simple operation and improving work efficiency.
Smart Images
Figure CN222436350U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of groundwater sampling equipment, in particular to a deep well sampler. Background Art
[0002] There are two types of deep well samplers commonly used at present. One is a slender cylindrical structure that takes in water from the bottom. The bottom is sealed with a ball bearing, which can solve the problem of sampling at the bottom of a deep well with low water level. However, due to the instability of the spherical seal, sand or dirty water may enter, causing the bottom water inlet to be blocked and the seal to be poor. In addition, the deep groundwater well may cause all samples to leak out. The other is to take in water from the top, but for groundwater wells at higher altitudes, because the groundwater level is deeper, sometimes the monitoring well is more than 100 meters deep before there is water and the amount of water in the well is small, so this top-inlet sampler cannot get water. Utility Model Content
[0003] In view of the above problems existing in the prior art, the utility model provides a deep well sampler, which is provided with an elastic compression sealing device, and a water inlet structure is connected to the bottom of the sampling barrel. By utilizing the principle of communicating vessels, samples can be taken out even in areas with low groundwater levels in deep wells.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a deep well sampler, including a sampling bucket, a conical water inlet, and a traction rope. The top of the sampling bucket is connected to a bucket cover, and an air leakage hole is opened on the bucket cover. A hanging ear is arranged on the top of the sampling bucket and the hanging ear is connected to the traction rope. A conical water inlet is arranged at the bottom of one side of the sampling bucket, and the conical water inlet is provided with a filter hole cover. A water inlet is opened on the side where the sampling bucket is connected to the conical water inlet, and an elastic pressing sheet is installed on the inner side of the water inlet, and the upper end of the elastic pressing sheet is fixedly connected to the side wall of the sampling bucket.
[0005] Furthermore, a counterweight box is connected to the bottom of the sampling bucket, and the counterweight box and the conical water inlet are installed on the same side.
[0006] Beneficial effects of the utility model:
[0007] The utility model provides a deep well sampler, which can adjust the size and capacity according to different monitoring wells. The water inlet is arranged at the bottom of the sampler to meet the sampling needs when the groundwater level in the deep well is low. The device has a simple structure and adopts elastic compression sheet sealing. It can effectively reduce the leakage of large amounts of samples without the need for additional valves. The device is easy to operate and can effectively improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a schematic diagram of the structure of the utility model;
[0009] Figure 2 It is a cross-sectional view of the utility model;
[0010] In the figure, 1 is a sampling bucket, 2 is a conical water inlet, 3 is a traction rope, 4 is a bucket cover, 5 is a hanging ear, 6 is an elastic pressing piece, 7 is a filter hole cover, and 8 is a counterweight box. DETAILED DESCRIPTION
[0011] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.
[0012] A deep well sampler comprises a sampling barrel 1, a conical water inlet 2, and a traction rope 3. The sampler is suitable for monitoring wells with an inner diameter greater than or equal to 110 mm, the sampling barrel 1: 60 mm × 200 mm (diameter × height), the conical water inlet 2: the filter hole cover 7 has a radius of 30 mm and a height of 70 mm.
[0013] The top of the sampling barrel 1 is buckled with a barrel cover 4, which is used to isolate debris from falling into the sampling barrel 1 and reduce the connection between the air pressure in the barrel and the external air pressure. An air vent is provided on the barrel cover 4. The top of the sampling barrel 1 is symmetrically welded with a hanging ear 5, which is connected to a traction rope 3, and the sampler is lowered or pulled up through the traction rope 3. A conical water inlet 2 is connected to the bottom of the left side of the sampling barrel 1. The conical design can increase the water inlet pressure and improve the sampling speed. A filter hole cover 7 is installed on the top of the conical water inlet 2 to perform preliminary filtration on the water entering the sampler to prevent larger debris from entering the sampling barrel 1 and causing blockage. A water inlet is provided at the connection between the left side of the sampling barrel 1 and the conical water inlet 2, and the sampling barrel 1 and the conical water inlet 2 form a simple communicating vessel structure. An elastic pressing sheet 6 is installed on the inner side of the water inlet, and the upper end of the elastic pressing sheet 6 is fixedly connected to the side wall of the sampling barrel 1, and the lower end is longer than the water inlet and is close to the left side wall of the sampling barrel 1. A counterweight box 8 is connected to the bottom of the left side of the sampling barrel 1. The counterweight box 8 and the conical water inlet 2 are installed on the same side. After the sampler enters the water well, one side of the water inlet can sink into the well first, thereby speeding up the sampling speed. A sliding door is provided on the side wall of the counterweight box 8, which can be closed after the sampler is counterweighted according to actual needs.
[0014] When the sampling barrel 1 and the conical water inlet 2 are full of air, the air pressure in the sampling barrel 1 is greater than that in the conical water inlet 2. At this time, the elastic pressing piece 6 is close to the left side wall of the sampling barrel 1, and is locked at the water inlet, and the communicating vessel is closed. When the sampling barrel 1 is placed at the bottom of the deep well, under the action of the counterweight box 8, the sampler tilts to the left, and the water flows into the sampler after preliminary filtration from the top of the conical water inlet 2. Since the sum of the air pressure in the well and the water pressure is greater than the air pressure in the sampling barrel 1, the elastic pressing piece 6 automatically opens after being subjected to the water pressure, the communicating vessel opens, and the water automatically flows from the conical water inlet 2 into the sampling barrel 1, and the air in the sampling barrel 1 is discharged from the air vent on the bucket cover 4. When the water sample is full, the water pressure in the sampling barrel 1 and the external air pressure cause the elastic pressing piece 6 to close, which plays a sealing role on the device, ensuring that a large amount of sample water is retained in the process of extracting the water sample. After sampling, the bucket cover 4 can be opened to take out the sampled water for subsequent experiments.
[0015] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.
Claims
1. A deep well sampler, characterized in that: It includes a sampling bucket, a conical water inlet, a traction rope, and an elastic pressing piece. The top of the sampling bucket is connected to a bucket cover, the bucket cover is provided with an air leakage hole, the top of the sampling bucket is provided with a hanging ear and the hanging ear is connected to the traction rope, a conical water inlet is provided at the bottom of one side of the sampling bucket, the conical water inlet is provided with a filter hole cover, a water inlet is provided on the side where the sampling bucket is connected to the conical water inlet, an elastic pressing piece is installed on the inner side of the water inlet, and the upper end of the elastic pressing piece is fixedly connected to the side wall of the sampling bucket.
2. A deep well sampler as claimed in claim 1, characterized in that: A counterweight box is connected to the bottom of the sampling bucket, and the counterweight box and the conical water inlet are installed on the same side.