Improved device for environmental sampling

Abstract

The utility model relates to an improved device for environmental sampling, which belongs to the technical field of environmental sampling and comprises a retractable frame, a retractable roller is mounted at the top of the retractable frame, a sampling pipe is wound in the retractable roller, a small pump is fixedly mounted at the head end of the sampling pipe, a water supply pipe is fittingly arranged at the tail end of the sampling pipe, and the tail end of the sampling pipe is connected with the water supply pipe. The device has the beneficial effects that the flow rate of liquid in the sampling pipe is monitored in real time through the flow meter, and the flow meter is matched with the small pump for use, so that the sampling flow rate can be accurately controlled, the equipment cost is remarkably reduced on the premise of ensuring the sampling accuracy, and the device is more suitable for being popularized and used in grassroots environment monitoring scenes; the brush can synchronously remove impurities such as sand and sludge attached to the surface, so that the problem that a subsequent water sample is polluted by attachments of a sampling pipe in traditional equipment is solved, extra time consumption of manual cleaning is avoided, and the sampling efficiency is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of environmental sampling technology, and in particular to an improved device for environmental sampling. Background Technology

[0002] In environmental monitoring and groundwater pollution investigation, the accuracy and representativeness of groundwater sampling directly affect the reliability of the analysis conclusions. Well washing, as a key step before sampling, aims to remove stagnant water in the well pipe and ensure that the collected water samples can truly reflect the actual water quality of the aquifer.

[0003] Currently used groundwater well flushing equipment has obvious technical shortcomings: one type of high-precision equipment is expensive and difficult to popularize; another type of simple equipment, although inexpensive, lacks a flow rate control mechanism, which can easily lead to aquifer disturbance or incomplete well flushing. In actual operation, excessive flow rate may cause fine particulate matter to float up and interfere with water quality testing; insufficient flow rate will not be able to complete effective replacement and seriously affect the sampling quality.

[0004] In addition, during the recycling process, the sampling tubes of existing equipment are prone to the adhesion of a large amount of sand, silt and other debris. If these deposits are not cleaned in time, they will cause multiple problems: First, when the sampling tube is reused, the deposits may fall off and contaminate the newly collected water sample, which will affect the accuracy of the test data. Second, long-term adhesion will accelerate the corrosion or blockage of the pipeline and shorten the service life of the equipment. Third, manual cleaning of the deposits requires additional time and manpower, which reduces the sampling efficiency. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this application is to provide an improved device for environmental sampling.

[0006] The technical solution of this application is as follows: an improved device for environmental sampling includes a take-up and release frame, a take-up and release roller is installed on the top of the take-up and release frame, a sampling tube is wound inside the take-up and release roller, a small pump is fixedly installed at the first end of the sampling tube, a water supply pipe is adapted to the end of the sampling tube, the end of the sampling tube is connected to the water supply pipe, a flow meter is installed on the outside of the sampling tube and above the small pump, a bracket is fixedly connected to the top of the take-up and release frame, and a circular frame is fixedly connected to the top of the bracket.

[0007] The circular frame has several limiting rods slidably connected inside. Each limiting rod has a cleaning ball fixedly connected to one end near the sampling tube. Each cleaning ball has a brush on its outer periphery.

[0008] By adopting the above technical solution, when the sampling tube is wound up with the take-up and take-down rollers, the brush can simultaneously remove sand, silt and other debris attached to the surface. This design solves the problem of subsequent water samples being contaminated by the attachments to the sampling tube in traditional equipment.

[0009] In a preferred embodiment, a telescopic spring is sleeved on the outer side of each limiting rod. The telescopic spring is located between the cleaning ball and the inner wall of the circular frame, and the cross-sectional area of ​​the cleaning ball is larger than the cross-sectional area of ​​the telescopic spring.

[0010] By adopting the above technical solution and by setting the telescopic spring, the brush on the outer periphery of the cleaning ball can always be in contact with the surface of the sampling tube under the elastic force of the telescopic spring.

[0011] In a preferred embodiment, the small pump is fixedly connected to a fixed base at equal intervals on its outer side, and a protective frame is rotatably connected inside each fixed base. A hanging ring is fixedly connected to the side of the protective frame that is close to the small pump, and a tension spring is attached to each of the two hanging rings.

[0012] By adopting the above technical solution, the protective structure composed of the protective frame and tension spring can provide surrounding protection for the small pump during the sampling process.

[0013] In a preferred embodiment, several of the limiting rods are arranged at equal intervals, and each limiting rod has a limiting component fixedly connected to the end away from the cleaning ball.

[0014] By adopting the above technical solution and setting the limiting component, the limiting rod can play a certain limiting role.

[0015] In a preferred embodiment, a portable power supply is installed on the top of the take-up and release frame and below the take-up and release rollers, and a controller is fixedly installed on one side of the take-up and release rollers.

[0016] By adopting the above technical solution, small pumps and flow meters can be powered through the setting of a portable power supply.

[0017] In a preferred embodiment, handles for easy lifting of the take-up and take-down frame are fixedly connected to both sides of the take-up and take-down roller.

[0018] By adopting the above technical solutions, the equipment can be easily carried and transported.

[0019] In a preferred embodiment, the portable power supply, the small pump, and the flow meter are all electrically connected to the controller, and the brushes on the cleaning ball are all in contact with the outer periphery of the sampling tube.

[0020] By adopting the above technical solution and configuring the controller, the portable power supply, small pump, and flow meter can be started and stopped.

[0021] Compared with the prior art, the advantages and positive effects of this application are as follows:

[0022] 1. In this application, the device monitors the liquid flow rate in the sampling tube in real time through a flow meter and works in conjunction with a small pump to precisely control the sampling flow rate. This prevents excessive flow rate from causing fine particles in the aquifer to float and interfere with water quality, while also avoiding insufficient flow rate from causing incomplete well cleaning. It significantly reduces equipment costs while ensuring sampling accuracy, making it more suitable for widespread use in grassroots environmental monitoring scenarios. When the sampling tube is wound up with the take-up and take-down rollers, the brush can simultaneously remove sand, silt, and other debris attached to the surface. This design solves the problem of sampling tube attachments contaminating subsequent water samples in traditional equipment, while avoiding the extra time spent on manual cleaning and significantly improving sampling efficiency.

[0023] 2. In this application, the protective structure composed of the protective frame and the tension spring can form a surrounding buffer when a small pump is submerged in a muddy, gravelly water environment, reducing collision damage. Attached Figure Description

[0024] Figure 1 This application provides an overall perspective view of an improved environmental sampling device;

[0025] Figure 2 This application provides a front view of an improved environmental sampling device;

[0026] Figure 3 This application provides a partial schematic diagram of an improved environmental sampling device;

[0027] Figure 4 This application provides an improved device for environmental sampling. Figure 2 Enlarged view of point A in the middle.

[0028] Legend: 1. Take-up and release frame; 2. Take-up and release roller; 3. Portable power supply; 4. Sampling tube; 5. Small pump; 6. Bracket; 7. Flow meter; 8. Circular frame; 9. Limiting rod; 10. Telescopic spring; 11. Cleaning ball; 12. Limiting component; 13. Tension spring; 14. Protective frame; 15. Hanging ring; 16. Fixing base. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-4An improved environmental sampling device includes a take-up and release frame 1, a take-up and release roller 2 installed on the top of the take-up and release frame 1, a sampling tube 4 wound inside the take-up and release roller 2, a small pump 5 fixedly installed at the first end of the sampling tube 4, a water supply pipe adapted to the end of the sampling tube 4, the end of the sampling tube 4 being connected to the water supply pipe, a flow meter 7 installed on the outside of the sampling tube 4 and above the small pump 5, a bracket 6 fixedly connected to the top of the take-up and release frame 1, and a circular frame 8 fixedly connected to the top of the bracket 6.

[0031] The circular frame 8 has several limiting rods 9 slidably connected inside. Each limiting rod 9 is fixedly connected to a cleaning ball 11 near the end of the sampling tube 4. Each cleaning ball 11 is equipped with a brush on its outer circumference. This device monitors the liquid flow rate in the sampling tube 4 in real time through a flow meter 7 and works in conjunction with a small pump 5 to precisely control the sampling flow rate. This prevents excessive flow rate from causing fine particles in the aquifer to float and interfere with water quality, and also avoids insufficient flow rate from causing incomplete well cleaning. It significantly reduces equipment costs while ensuring sampling accuracy, making it more suitable for widespread use in grassroots environmental monitoring scenarios. When the sampling tube 4 is wound up with the take-up and unwinding roller 2, the brush can simultaneously remove sand, silt, and other debris attached to the surface. This design solves the problem of contamination of subsequent water samples by attached materials in the sampling tube 4 in traditional equipment, while avoiding the extra time spent on manual cleaning and significantly improving sampling efficiency.

[0032] Specifically, each of the limiting rods 9 is fitted with a telescopic spring 10. The telescopic spring 10 is located between the cleaning ball 11 and the inner wall of the circular frame 8. The telescopic spring 10 ensures that the brush on the outer periphery of the cleaning ball 11 remains in contact with the surface of the sampling tube 4 under the elastic force of the telescopic spring 10, thereby improving the cleaning effect. The cross-sectional area of ​​the cleaning ball 11 is larger than that of the telescopic spring 10, which prevents the telescopic spring 10 from detaching from the cleaning ball 11. The outer side of the small pump 5 is fixedly connected with a fixed seat 16 at equal intervals. The inside of the fixed seat 16 is rotatably connected with a protective frame 14. The side of the protective frame 14 that is close to the small pump 5 is fixedly connected with a hanging ring 15. The protective structure composed of the protective frame 14 and the tension spring 13 can form a surrounding protection for the small pump 5 during the sampling process, reducing collision damage. The tension spring 13 is hung on the two hanging rings 15. Several limiting rods 9 are arranged at equal intervals. The end of the limiting rod 9 away from the cleaning ball 11 is fixedly connected with a limiting member 12.

[0033] Specifically, a portable power supply 3 is installed on the top of the take-up and release frame 1 and below the take-up and release roller 2, which can power the small pump 5 and the flow meter 7. A controller is fixedly installed on one side of the take-up and release roller 2, and handles are fixedly connected to both sides of the take-up and release roller 2 to facilitate lifting the take-up and release frame 1. The design of the take-up and release roller 2 and the handles facilitates the carrying and transportation of the equipment. The portable power supply 3, the small pump 5 and the flow meter 7 are all electrically connected to the controller. Through the settings of the controller, the portable power supply 3, the small pump 5 and the flow meter 7 can be controlled to start and stop. The brushes on the cleaning ball 11 are in contact with the outer periphery of the sampling tube 4.

[0034] Working principle: First, during well washing operations, the device can be placed at the inlet of the groundwater pipe using the handle, and the take-up and release roller 2 can be rotated to immerse the small pump 5 at the head of the sampling tube 4 into the water. Then, clean water is continuously discharged into the groundwater through the sampling tube 4. The staff can preset the threshold of the flow meter 7 according to the actual well washing situation, so as to monitor the liquid flow rate in the sampling tube 4 in real time through the flow meter 7. With the cooperation of the small pump 5 and the controller, the sampling flow rate can be accurately controlled. While ensuring the accuracy of sampling, the equipment cost is significantly reduced, making it more suitable for widespread use in grassroots environmental monitoring scenarios. The protective structure composed of the protective frame 14 and the tension spring 13 can form a surrounding protection for the small pump 5 during the sampling process, reducing collision damage. When the sampling tube 4 is wound up with the take-up and release roller 2, the brush can simultaneously remove sand, silt and other debris attached to the surface. This design solves the problem of the sampling tube 4 being contaminated by the attached material in traditional equipment, so as to facilitate subsequent sampling work.

[0035] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An improved device for environmental sampling, comprising a take-up rack (1), characterized in that: The top of the take-up and release frame (1) is equipped with a take-up and release roller (2), and a sampling tube (4) is wound inside the take-up and release roller (2). A small pump (5) is fixedly installed at the head end of the sampling tube (4), and a water supply pipe is adapted to the end of the sampling tube (4). The end of the sampling tube (4) is connected to the water supply pipe. A flow meter (7) is installed on the outside of the sampling tube (4) and above the small pump (5). A bracket (6) is fixedly connected to the top of the take-up and release frame (1), and a circular frame (8) is fixedly connected to the top of the bracket (6). The circular frame (8) has several limiting rods (9) slidably connected inside. Each limiting rod (9) is fixedly connected to a cleaning ball (11) at one end near the sampling tube (4). Each cleaning ball (11) is provided with a brush on its outer periphery.

2. The improved environmental sampling device according to claim 1, characterized in that: The outer side of each limiting rod (9) is fitted with a telescopic spring (10), which is located between the cleaning ball (11) and the inner wall of the circular frame (8). The cross-sectional area of ​​the cleaning ball (11) is larger than the cross-sectional area of ​​the telescopic spring (10).

3. An improved environmental sampling device according to claim 1, characterized in that: The small pump (5) is fixedly connected to a fixed seat (16) at equal intervals on the outside. The fixed seat (16) is rotatably connected to a protective frame (14). The protective frame (14) is fixedly connected to a hanging ring (15) on the side close to the small pump (5). The two hanging rings (15) are attached to tension springs (13).

4. An improved environmental sampling device according to claim 1, characterized in that: Several of the limiting rods (9) are arranged at equal intervals, and the end of each limiting rod (9) away from the cleaning ball (11) is fixedly connected to a limiting member (12).

5. An improved environmental sampling device according to claim 1, characterized in that: A portable power supply (3) is installed on the top of the take-up and release frame (1) and below the take-up and release roller (2), and a controller is fixedly installed on one side of the take-up and release roller (2).

6. An improved environmental sampling device according to claim 1, characterized in that: Both sides of the take-up and take-down roller (2) are fixedly connected to handles that facilitate lifting the take-up and take-down frame (1).

7. An improved environmental sampling device according to claim 5, characterized in that: The portable power supply (3), the small pump (5) and the flow meter (7) are all electrically connected to the controller, and the brushes on the cleaning ball (11) are in contact with the outer periphery of the sampling tube (4).

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