Underground water sampling pipe

Abstract

The utility model provides an underground water sampling pipe, and belongs to the technical field of underground water sampling. Comprising a transparent pipe, the bottom end of the transparent pipe communicates with a water injection inclined pipe through a funnel, a piston is installed at the communicating position of the water injection inclined pipe and the funnel, the outer wall of the piston is in clearance fit with the inner wall of the water injection inclined pipe, the bottom end of the piston is fixedly connected with a water injection grating, and the bottom end of the water injection grating is connected with the inner wall of the water injection inclined pipe through a reset spring; the top end of the piston is connected with one end of a water taking piston rope, and the other end of the water taking piston rope penetrates through the transparent pipe and is exposed out of the top end of the transparent pipe. The water sampling device can solve the problem of water leakage in the sampling process and the water injection process, prevents water samples from being taken out to pollute surface soil, can accurately collect water samples at specific depths, reduces manual burden, and has sampling rapidness and accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling, in particular to a groundwater sampling tube. Background Art

[0002] The site groundwater environmental survey is a process that uses a systematic survey method to determine whether the site groundwater is polluted and the degree and scope of the pollution. During the survey, it is necessary to use drilling equipment to build monitoring wells for observation and sampling, use a bele tube or other sampler to take out the groundwater of the monitoring well's focus layer, and place the water sample in a suitable device to facilitate the technicians to carefully observe, monitor, describe and take pictures of the physical and chemical properties of the water sample, such as the properties, color, odor, temperature, dissolved oxygen, and redox potential. The bele tube is more commonly used in the site groundwater environmental survey. The bele tube is generally used to collect upper layer water samples. When the bele tube is placed on the water surface, sampling begins, resulting in the inability to collect water samples at the set depth. Therefore, although the bele tube is light and can basically meet the requirements for water sampling, the defects of leakage and inability to accurately collect water samples at a specific depth during the process of taking water and injecting water into the sample bottle have affected the speed and accuracy of the site groundwater survey to a certain extent. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a groundwater sampling tube to solve the technical problems of leakage in the collection of groundwater samples and inability to accurately collect water samples at a specific depth in the prior art.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A groundwater sampling tube comprises a transparent tube, the bottom end of which is connected to a water injection inclined tube through a funnel, a piston is installed at the connection point between the water injection inclined tube and the funnel, the outer wall of the piston is gap-matched with the inner wall of the water injection inclined tube, the bottom end of the piston is fixedly connected to a water injection grid, and the bottom end of the water injection grid is connected to the inner wall of the water injection inclined tube through a reset spring; one end of a water intake piston rope is connected to the top end of the piston, and the other end of the water intake piston rope passes through the transparent tube and is exposed outside the top end of the transparent tube; a scale is provided on the water intake piston rope, and the 0 scale of the water intake piston rope is located at the binding point of the water intake piston rope and the piston.

[0006] Optionally, the open end of the funnel is connected to the bottom end of the transparent tube, and the narrow end of the funnel is connected to the top end of the water injection inclined tube.

[0007] Optionally, a water intake rope hook is installed at the top of the transparent tube, and a water intake rope is provided on the water intake rope hook.

[0008] Optionally, a water intake piston rope hook is provided at the top of the piston, and the piston is connected to the water intake piston rope via the water intake piston rope hook.

[0009] Optionally, the piston is installed at the flat end of the water injection inclined tube.

[0010] Optionally, the transparent tube is made of glass or acrylic.

[0011] Optionally, when the piston is pulled upward by the water intake piston rope, the piston drives the water injection grid to enter the funnel, and the water sample enters the funnel from the water injection grid through the water injection inclined tube.

[0012] Optionally, when the water sample is taken, the water sampling piston rope is loosened and the reset spring pulls the water injection grid to reset the water injection grid and the piston, and the piston closes the connecting port between the funnel and the water injection inclined tube.

[0013] Optionally, a counterweight ring is provided at the connection between the transparent tube and the funnel.

[0014] Compared with the prior art, the utility model has at least the following beneficial effects:

[0015] In the above scheme, by arranging a water injection grid on the piston and a return spring in the water injection inclined tube, water leakage during the sampling process and the process of injecting water into the sample bottle can be reduced, water samples at a specific depth can be accurately collected, the contamination of surface soil by taking out water samples can be avoided, and the repetitive work of sampling personnel can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0017] Figure 1 This is a schematic diagram of the structure of a groundwater sampling pipe according to an embodiment of the utility model;

[0018] Figure 2 It is a first partial schematic diagram of a groundwater sampling pipe according to an embodiment of the utility model;

[0019] Figure 3 This is a second partial schematic diagram of a groundwater sampling pipe according to an embodiment of the utility model.

[0020] [reference numerals]

[0021] 1. Water intake rope; 2. Water intake rope hook; 3. Water intake piston rope; 4. Transparent tube; 5. Funnel; 6. Water intake piston rope hook; 7. Piston; 8. Water injection inclined tube; 9. Water injection grid; 10. Reset spring; 11. Counterweight ring.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0023] The groundwater sampling tube provided by the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0024] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0025] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0026] It will be understood that the meaning of “on,” “over,” and “above” in this disclosure should be interpreted in the broadest manner, so that “on” means not only “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” means not only “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0027] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0028] like Figure 1-Figure 3 As shown, the present application provides a groundwater sampling tube, including a transparent tube 4, which is a transparent cylindrical tube with upper and lower ends opened, and a water intake rope hook 2 is installed on the top side wall of the transparent tube 4, and the water intake rope hook 2 is connected to the water intake rope 1. The water intake rope hook 2 can fix the transparent tube 4 when taking water, so that the water intake process is stable.

[0029] The bottom end of the transparent tube 4 is connected to the flat end of the water injection inclined tube 8 through the funnel 5, the open end of the funnel 5 is connected to the bottom end of the transparent tube 4, and the narrow end of the funnel 5 is connected to the flat end of the water injection inclined tube 8. The connecting part of the funnel 5 and the transparent tube 4 and the connecting part of the funnel 5 and the water injection inclined tube 8 are airtightly arranged. The transparent tube 4 and the funnel 5 are preferably made of glass or acrylic material, and the transparent tube body is convenient for observing the water sample. The function of the opening and closing of the piston 7 and the water injection grid 9 is to prevent the water sample from leaking and wasting during the water extraction and water injection process.

[0030] like Figure 3As shown, a piston 7 is provided at the connection between the funnel 5 and the flat end of the water injection inclined tube 8. The piston 7 is a heavy solid. The outer wall of the piston 7 is matched with the inner wall of the flat end of the water injection inclined tube 8. The piston 7 closes the connection between the water injection inclined tube 8 and the funnel 5. The bottom end of the piston 7 is fixedly connected to the water injection grid 9. The bottom end of the water injection grid 9 is connected to the inner wall of the water injection inclined tube 8 through a reset spring 10. A water intake piston rope hook 6 is provided at the top of the piston 7. The water intake piston rope hook 6 is connected to one end of the water intake piston rope 3. The water intake piston rope 3 passes through the transparent tube 4 and the other end of the water intake piston rope 3 is exposed outside the top of the transparent tube 4. A scale is provided on the water intake piston rope 3. The 0 scale of the water intake piston rope 3 is located at the binding place between the water intake piston rope 3 and the piston 7. In this embodiment, it is located at the binding place between the water intake piston rope 3 and the water intake piston rope hook 6.

[0031] When sampling and collecting water samples, pull the water piston rope 3, the water piston rope 3 drives the piston 7 and the water injection grid 9 to move upward, and the water injection grid 9 is exposed in the funnel 5, so that the water injection inclined tube 8 and the funnel 5 are connected through the water injection grid 9, and the water sample enters the water injection inclined tube 8 and enters the funnel 5 through the water injection grid 9 and then flows into the transparent tube 4. When the water sample collection is completed, release the water piston rope 3. The reset spring in the water injection inclined tube 8 pulls the water injection grid 9 to reset and then drives the piston 7 to reset, so that the piston 7 blocks the connecting port between the funnel 5 and the water injection inclined tube 8. The oblique end of the water injection inclined tube 8 is used to facilitate the injection of groundwater samples into the sample bottle and to facilitate water collection.

[0032] A weight ring 11 is provided at the connection between the transparent tube 4 and the funnel 5 to provide weight for the sampling tube to penetrate into the groundwater.

[0033] The specific working process of this utility model is as follows:

[0034] The depth of groundwater to be sampled is predetermined in advance, and the depth of the groundwater surface is measured using a test device (which is prior art and will not be described in detail here), and the oblique end of the water injection inclined tube 8 is placed at the groundwater depth to be sampled (by observing the scale when the water sampling piston rope 3 is flush with the ground surface, it is determined whether the sampling groundwater depth has been reached, and the read depth needs to be added with the length of the inclined tube), and the water sampling piston rope 3 is pulled, and the water sampling piston rope 3 drives the piston 7 and the water injection grid 9 to move upward, so that the funnel 5 is connected with the water injection inclined tube 8 through the water injection grid 9, and the water sample enters the water injection inclined tube 8, passes through the water injection grid 9, and enters the funnel 5, and then flows into the transparent tube 4. When the required water sample collection is completed, the water sampling piston rope 3 is released, and the reset spring 1 0 drives the water injection grid 9 and the piston 7 to reset, and the piston 7 blocks the connection between the water injection inclined tube 8 and the funnel 5 to prevent the water sample from continuing to enter; the groundwater sampling tube is taken out of the observation well, and a plurality of sample bottles are arranged outside the well. The oblique end of the water injection inclined tube 8 is placed in the sample bottle, and the water extraction piston rope 3 is pulled to connect the water injection inclined tube 8 with the funnel 5 through the water injection grid 9. The water sample enters the funnel 5 from the transparent tube 4 and then flows into the water injection inclined tube 8 through the water injection grid 9. The water sample is injected into the sample bottle from the water injection inclined tube 8. When the required water sample is injected, the water extraction piston rope 3 is released, and the reset spring 10 resets the piston 7. The piston 7 blocks the connection between the water injection inclined tube 8 and the funnel 5 to prevent the water sample from flowing into the water injection inclined tube 8.

[0035] The technical effect of the utility model is that, by arranging a water injection grid on the piston and arranging a return spring in the water injection inclined tube, water leakage in the sampling process and the process of injecting water into the sample bottle can be reduced, and the contamination of surface soil by taking out water samples can be avoided. Water samples at a specific depth can be accurately collected, and the repetitive work of sampling personnel can be reduced.

[0036] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the utility model, well-known methods, processes, procedures, components and circuits are not described in detail.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A groundwater sampling tube, characterized in that: It comprises a transparent tube, the bottom end of which is connected with a water injection inclined tube through a funnel, a piston is installed at the connection point between the water injection inclined tube and the funnel, the outer wall of the piston is gap-matched with the inner wall of the water injection inclined tube, the bottom end of the piston is fixedly connected with a water injection grid, the bottom end of the water injection grid is connected with the inner wall of the water injection inclined tube through a reset spring; one end of a water intake piston rope is connected to the top end of the piston, the other end of the water intake piston rope passes through the transparent tube and is exposed outside the top end of the transparent tube; a scale is arranged on the water intake piston rope, and the 0 scale of the water intake piston rope is located at the binding place between the water intake piston rope and the piston.

2. The groundwater sampling tube according to claim 1, characterized in that: The open end of the funnel is communicated with the bottom end of the transparent tube, and the narrow end of the funnel is communicated with the top end of the water injection inclined tube.

3. The groundwater sampling tube according to claim 1, characterized in that: A water intake rope hook is installed at the top end of the transparent tube, and a water intake rope is arranged on the water intake rope hook.

4. The groundwater sampling tube according to claim 1, characterized in that: A water-intake piston rope hook is provided at the top end of the piston, and the piston is connected to the water-intake piston rope through the water-intake piston rope hook.

5. The groundwater sampling tube according to claim 1, characterized in that: The piston is installed at the flat end of the water injection inclined pipe.

6. The groundwater sampling tube according to claim 1, characterized in that: The transparent tube is made of glass or acrylic.

7. The groundwater sampling tube according to claim 1, characterized in that: When the piston is pulled upwards by the water-taking piston rope, the piston drives the water injection grid to enter the funnel, and the water sample enters the funnel from the water injection grid through the water injection inclined tube.

8. The groundwater sampling tube according to claim 1, characterized in that: When the water sample is taken, the reset spring pulls the water injection grid to reset the water injection grid and the piston, and the piston closes the communication port between the funnel and the water injection inclined tube.

9. The groundwater sampling tube according to claim 1, characterized in that: A counterweight ring is arranged at the connection between the transparent tube and the funnel.

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