CN202420916U - Telescopic water sampling collector - Google Patents

Abstract

The utility model discloses a telescopic water sample collector, which comprises a collection tube, a telescopic water storage chamber, a support slide bar, a control rod and a pull rod; The top of the top is provided with a sliding top cover, and the control rod is connected with the sliding top cover. The utility model controls the operation of the telescopic water storage chamber below the water surface by operating the control rod above the water surface, so that the sampling volume can be controlled, the sampling depth is flexible and accurate, and at the same time, it can go deep into the inspection well with a small diameter for sampling, and the sample transfer is simple. , is not easily polluted, has the characteristics of portability, flexibility, and simple operation, and improves the accuracy and efficiency of sampling without increasing the labor intensity of monitoring personnel.

Description

Telescopic water sample collector

technical field

The utility model relates to a water sample collection device, in particular to a telescopic water sample collection device.

Background technique

At present, research on water bodies and observation of water quality and changes are realized through the collection, testing and analysis of water samples. According to the layout principles of surface water monitoring points in "Water and Wastewater Monitoring and Analysis Methods (Fourth Edition)", the collection of water samples should be determined according to the depth of the water body. When the water depth reaches a certain level, in addition to collecting surface water samples, it is also necessary to determine the location for collecting water samples underwater. In addition, in hydrogeology, it is often necessary to collect water samples in small-diameter (5-10cm) inspection wells, and the amount of water in the inspection wells is small, making it difficult to collect.

At present, the commonly used synthetic water bucket sampler is coated with Teflon on its surface. Although it can collect water samples in small-diameter inspection wells or at fixed depths, it has the following shortcomings:

1. The sampler does not have the function of measuring water depth. When collecting water samples at a certain depth, it is necessary to measure the sampling point first;

2. The sampler is large in size and generally about 1m in length, which is inconvenient to use;

3. The sampling volume of the sampler is 160-725mL. Since the sample is taken by the Teflon evacuation device, it is greatly affected by the depth of the external water sample. The height of the water sample collected by the sampler cannot exceed the external water depth each time. Shallow water samples need to be collected multiple times;

4. In the process of transferring the collected water samples after sampling, it is necessary to turn the sampler upside down and discharge water from the upper end, which will cause the water samples to be easily mixed with gas and cause interference during certain index tests. During this process, there may be Increased risk of sample contamination;

5. It is impossible to collect water samples with large water area but shallow water depth.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a telescopic water sample collector, which realizes single-person operation and accurately collects water samples.

The utility model is realized through the following technical proposals. The utility model includes a collection pipe, a telescopic water storage chamber, a support slide bar, a control rod and a pull rod; wherein: the bottom end of the telescopic water storage chamber is connected with the collection pipe, and the telescopic water storage chamber The top of the top is provided with a sliding top cover, and the control rod is connected with the sliding top cover.

The sliding top cover is provided with a pull ring, and the control rod is fixedly connected with the pull ring, which can facilitate maintenance of the control rod and the sliding top cover.

In order to realize the measurement of the sampling depth while lowering or raising the collector, scales are respectively provided on the control rod and the pull rod.

The telescopic water storage cavity is a sealed cavity, and the telescopic water storage cavity is made of polyethylene, which is elastic, resistant to acid and alkali corrosion, and can be cleaned according to the preservation method of the water sample, and the water sample will not be polluted during sampling.

The bottom end of the telescopic water storage chamber is provided with a metal disc body, which communicates with the collection pipe, and the metal disc body can increase the weight of the collector, keep it vertical in the water, and increase the accuracy of water depth measurement.

The top of the collection tube is in communication with the metal disc body, the bottom end of the collection tube is the end of the disc, and the tube body of the collection tube is provided with a water inlet hole. The disc design at the bottom of the collection tube allows the operator to perceive that the collector touches the bottom of the water body, reducing measurement errors and preventing the collection tube from being inserted into the sludge at the bottom of the water body, causing the water inlet to be blocked.

When there are excessive impurities in the sampling water body, a filter screen is provided on the water inlet hole of the collection pipe.

The ratio of the diameter to the length of the collection tube is 1:10 to 1:20, and the diameter of the collection tube is small, which can effectively prevent the backflow of the water sample.

Compared with the prior art, the utility model has the following advantages. The utility model controls the work of the telescopic water storage chamber located below the water surface by operating the control rod located above the water surface, and can control the sampling volume, and the sampling depth is flexible and accurate. Sampling deep into inspection wells with small calibers, sample transfer is simple, less likely to be polluted, and has the characteristics of portability, flexibility, and simple operation. It improves the accuracy and efficiency of sampling without increasing the labor intensity of monitoring personnel.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

The following is a detailed description of the embodiments of the present utility model. This embodiment is implemented on the premise of the technical solution of the present utility model, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present utility model is not limited to the following the described embodiment.

As shown in Figure 1, this embodiment includes a collection pipe 1, a telescopic water storage chamber 2, a support slide bar 3, a control rod 4 and a pull rod 5; wherein: the bottom end of the telescopic water storage chamber 2 is connected to the collection pipe 1, The top of the water chamber 2 is provided with a sliding top cover 6, and the control rod 4 is connected with the sliding top cover 6. The two ends of the sliding top cover 6 are provided with slide holes, and the sliding top cover 6 is sleeved on the supporting slide bar 3 through the sliding holes to support One end of the sliding rod 3 is connected to the pull rod 5, and the other end is connected to the bottom of the telescopic water storage chamber 2. In this embodiment, there are two supporting sliding rods 3, which are respectively located on both sides of the telescopic water storage chamber 2.

The control rod 4 and the pull rod 5 of the present embodiment are respectively provided with a scale, which can realize the measurement of the sampling depth while lowering or lifting the collector; the sliding top cover 6 is provided with a pull ring 7, the control rod 4 and the pull ring 7 are fixedly connected, which can facilitate the maintenance of the control rod 4 and the sliding top cover 6; in this embodiment, the telescopic water storage chamber 2 is a sealed chamber, which can be stretched; the bottom end of the telescopic water storage chamber 2 is provided with a metal plate 8 , the metal disc body 8 communicates with the collection tube 1, the metal disc body 8 can increase the weight of the collector, and keep it vertical in the water, increasing the accuracy of water depth measurement; the top of the collection tube 1 communicates with the metal disc body 8, and the collection tube 1 The bottom end of the collection tube 1 is a disc end 9, and the body of the collection tube 1 is provided with a water inlet 10. The disc design at the bottom of the collection tube 1 can allow the operator to perceive that the collector touches the bottom of the water body, reduce measurement errors, and prevent The collection pipe 1 is inserted into the sludge at the bottom of the water body, causing the water inlet 10 to be blocked. The water inlet 10 of the collection pipe 1 in this embodiment is provided with a filter 11 . In this embodiment, the ratio of the diameter to the length of the collection tube 1 is 1:10, and in other embodiments, it can be designed with a thinner diameter as required.

In this embodiment, the sampling water body is relatively shallow, and the control rod 4 and the pull rod 5 can be rigid rods. In other embodiments, when the sampling water body is relatively deep, flexible ropes are used for the control rod 4 and the pull rod 5, so as to realize sampling and detection of deep water bodies.

When this embodiment is working, use the pull rod 5 with scale to put the collector into the water body to measure the water depth, and then determine the final sampling depth according to the specific depth. When the collector reaches the predetermined depth, fix the pull rod 5, then lift the control rod 4, stretch The water storage chamber 2 rises along the support slide rod 3, stretches the sealed chamber, and the water sample enters the retractable water storage chamber 2 through the water inlet hole 10, and at the same time reads the depth of the water body according to the scale; after the collection is completed, lift the control rod at the same time 4 and pull bar 5, collector is proposed water body. Then compress the telescopic water storage chamber 2 to discharge the water sample and put it into the sampling bottle, so far, the sampling ends.

Claims (8)

1. A telescopic water sample collector, characterized in that it includes a collection tube (1), a telescopic water storage chamber (2), a support slide rod (3), a control rod (4) and a pull rod (5); wherein: The bottom of the telescopic water storage chamber (2) is connected to the collection pipe (1), the top of the telescopic water storage chamber (2) is provided with a sliding top cover (6), and the control rod (4) is connected to the sliding top cover (6). The sliding top cover (6) is sheathed on the supporting sliding rod (3), and one end of the supporting sliding rod (3) is connected with the pull rod (5), and the other end is connected with the bottom end of the telescopic water storage chamber (2). 2. The telescopic water sample collector according to claim 1, characterized in that: the sliding top cover (6) is provided with a pull ring (7), and the control rod (4) is fixedly connected to the pull ring (7) . 3. The telescopic water sample collector according to claim 1, characterized in that: the control rod (4) and the pull rod (5) are respectively provided with scales. 4. The telescopic water sample collector according to claim 1, characterized in that: the telescopic water storage chamber (2) is a sealed chamber. 5. The telescopic water sample collector according to claim 1, characterized in that: the bottom end of the telescopic water storage chamber (2) is provided with a metal disc (8), a metal disc (8) and a collection tube (1) Connectivity. 6. The telescopic water sample collector according to claim 5, characterized in that: the top end of the collection tube (1) communicates with the metal disc body (8), and the bottom end of the collection tube (1) is a disc end part (9), and the pipe body of the collection pipe (1) is provided with a water inlet hole (10). 7. The telescopic water sample collector according to claim 6, characterized in that: the water inlet hole (10) of the collection tube (1) is provided with a filter screen (11). 8. The telescopic water sample collector according to claim 1, characterized in that: the ratio of the diameter to the length of the collection tube (1) is 1:10-1:20.

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