A groundwater quality detection sampling device

Abstract

The utility model relates to a groundwater quality detection sampling device, including support frame, the upper end surface of support frame is opened with square mouth, the inside slide coupling of square mouth has the sampling cylinder, the front end surface of sampling cylinder is provided with liquid level line, the inside lower fixed connection of sampling cylinder has the baffle, the upper end of baffle is provided with sampling mechanism, the inside lower end of sampling cylinder is provided with sealing mechanism, the left and right sides of support frame all are opened with sliding through slot, the inner wall sliding connection of sliding through slot has the limit slide, one end of limit slide is fixed with sampling cylinder. The utility model discloses a groundwater quality detection sampling device can open to carry out sampling processing after sampling cylinder goes into the specified depth, avoid in the process of going into the specified depth, groundwater can go into the inside of sampling cylinder in advance and influence the detection effect of subsequent, more practical.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a groundwater quality testing and sampling device. Background Technology

[0002] Groundwater refers to water found in the pores of rocks below the ground surface; in a narrower sense, it refers to water in saturated aquifers below the groundwater level. Groundwater is an important component of water resources, and due to its stable quantity and good quality, it is a vital water source for agricultural irrigation, industrial mining, and urban areas. However, under certain conditions, changes in groundwater can cause adverse natural phenomena such as marshland formation, salinization, landslides, and land subsidence. Therefore, groundwater sampling and testing are necessary during geological exploration.

[0003] The published patent document CN221445511U discloses a groundwater sampling device for engineering surveys, which includes a support frame. The support frame includes a support base and a crossbeam. A reel is provided on the crossbeam. The reel is driven by a motor. A pull rope is wound on the reel. The end of the pull rope is connected to a sampling mechanism. The sampling mechanism includes a sampling tube and a net cylinder. The sampling tube is set inside the net cylinder and has a set of sampling holes.

[0004] However, the above-mentioned sampling device has shortcomings in use. When the mesh cylinder drives the hose into the groundwater, the sampling tube is always open. During the process of penetrating the groundwater, water that has entered the hose and sampling tube before reaching the sampling depth will enter the hose and sampling tube in advance. When the sampling is carried out at the designated depth, the water that has entered the hose and sampling tube in advance will be extracted at the same time. This will cause the groundwater to be mixed with groundwater from other depths, resulting in inaccurate sample test data and affecting the groundwater quality test results. To address this, we propose a groundwater quality testing sampling device. Utility Model Content

[0005] This invention provides a groundwater quality testing and sampling device, which solves the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A groundwater quality testing and sampling device includes a support frame. A square opening is formed on the upper surface of the support frame, and a sampling cylinder is slidably connected inside the square opening. A liquid level line is provided on the front end face of the sampling cylinder. A partition is fixedly connected to the lower interior of the sampling cylinder, and a sampling mechanism is provided on the upper end of the partition. A sealing mechanism is provided on the lower interior of the sampling cylinder. Sliding grooves are formed on both the left and right sides of the support frame. A limiting slide plate is slidably connected to the inner wall of the sliding groove, and one end of the limiting slide plate is fixedly connected to the sampling cylinder. A lifting mechanism is provided inside the sliding groove on the left side of the support frame.

[0008] A further improvement of the present invention is that the sampling mechanism includes a fixed plate, the fixed plate is fixedly connected to the upper end face of the support frame, a water pump is fixedly connected to the upper end face of the fixed plate, and an outlet pipe is fixedly connected to the outlet end of the water pump.

[0009] A further improvement of the present invention is that: a pumping end of the water pump is fixedly connected to a pumping pipe, one end of the pumping pipe is fixedly connected to a sampling tube one that penetrates the fixed plate and is fixedly connected to the penetration part, a sealing ring is slidably connected to the inner wall of the sampling tube one, a sampling tube two is fixedly connected to the inner wall of the sealing ring, and the lower end of the sampling tube two penetrates the partition plate and is fixedly connected to the penetration part.

[0010] A further improvement of the present invention is that the sealing mechanism includes a sealing sleeve, the sealing sleeve passes through the partition and is fixedly connected to the through portion, and an electric push rod fixedly connected to the partition is provided at the upper end of the sealing sleeve, the telescopic rod of the electric push rod passes through the sealing sleeve and is slidably connected to the through portion.

[0011] A further improvement of this utility model is that: the lower end of the telescopic rod of the electric push rod is fixedly connected to a square filter cylinder that is slidably connected to the inner wall of the sampling cylinder; the lower end of the square filter cylinder is fixedly connected to a sealing plug plate that is sleeved and connected to the inner wall of the sampling cylinder; and a sealing plate is fixedly connected to the lower end face of the sealing plug plate.

[0012] A further improvement of the present invention is that the lifting mechanism includes a trapezoidal lead screw, which passes through the corresponding limiting slide plate and is threadedly connected to the through portion. The upper end of the trapezoidal lead screw passes through the support frame and is rotatably connected to the through portion. A fixing frame is provided at the upper end of the trapezoidal lead screw and is fixedly connected to the support frame. A servo motor is fixedly connected inside the fixing frame, and the output end of the servo motor is fixedly connected to the upper end of the trapezoidal lead screw.

[0013] A further improvement of this utility model is that: a controller is fixedly connected to the front side of the support frame, and a base plate is fixedly connected to the lower end of the support frame.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a groundwater quality testing and sampling device, which has the following advantages:

[0015] This utility model proposes a groundwater quality testing and sampling device. Through the action of a lifting mechanism, a limiting slide plate, and a sliding channel, the sampling tube can be lowered to allow it to penetrate deep into the groundwater for sampling. The depth of the sampling tube's descent can be easily observed through the liquid level line. The sealing mechanism prevents groundwater from entering the sampling tube before it penetrates the groundwater, thus avoiding the mixing of groundwater from other depths and ensuring accurate sample testing data. The sampling mechanism allows for sampling of groundwater at a specified depth.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a groundwater quality testing and sampling device provided in an embodiment of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of a groundwater quality testing and sampling device from another perspective;

[0020] Figure 3 for Figure 1 A frontal sectional view of a partial structure in a groundwater quality testing and sampling device is provided.

[0021] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A in a groundwater quality testing and sampling device is provided.

[0022] Figure 5 for Figure 3 An enlarged schematic diagram of the structure at point B in a groundwater quality testing and sampling device is provided.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Support frame; 2. Sampling cylinder; 3. Square opening; 4. Sampling tube one; 5. Liquid extraction tube; 6. Water pump; 7. Liquid outlet tube; 8. Fixing plate; 9. Sliding groove; 10. Limiting slide plate; 11. Controller; 12. Liquid level line; 13. Sealing plate; 14. Base plate; 15. Lifting mechanism; 151. Fixing frame; 152. Servo motor; 153. Trapezoidal lead screw; 16. Electric push rod; 17. Partition plate; 18. Square filter cylinder; 19. Sealing plug plate; 20. Sealing ring; 21. Sampling tube two; 22. Sealing sleeve. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0026] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example 1

[0029] like Figure 1-5As shown, this utility model provides a groundwater quality testing and sampling device, including a support frame 1. A square opening 3 is provided on the upper end face of the support frame 1. A sampling cylinder 2 is slidably connected inside the square opening 3. A liquid level line 12 is provided on the front end face of the sampling cylinder 2. A partition 17 is fixedly connected to the lower end of the sampling cylinder 2. A sampling mechanism is provided on the upper end of the partition 17. A sealing mechanism is provided on the lower end of the sampling cylinder 2. Sliding grooves 9 are provided on both the left and right sides of the support frame 1. A limiting slide plate 10 is slidably connected to the inner wall of the sliding groove 9. One end of the limiting slide plate 10 is fixedly connected to the sampling cylinder 2. A lifting mechanism 15 is provided inside the sliding groove 9 on the left side of the support frame 1.

[0030] In this embodiment, the lifting mechanism 15 can lower the limiting slide plate 10, causing the sampling cylinder 2 to descend deeper into the groundwater. The depth of the sampling cylinder 2 into the groundwater can be observed through the liquid level line 12. The sealing mechanism can seal the lower end of the sampling cylinder 2, preventing groundwater from entering the cylinder 2 before it reaches the groundwater level, thus avoiding mixing with groundwater from other depths and ensuring accurate sample data. After reaching the designated depth, the sealing mechanism can open the lower end of the sampling cylinder 2 for sampling. The sampling mechanism can then be used to extract groundwater samples.

[0031] Example 2

[0032] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the sampling mechanism includes a fixed plate 8, which is fixedly connected to the upper end face of the support frame 1. A water pump 6 is fixedly connected to the upper end face of the fixed plate 8. An outlet pipe 7 is fixedly connected to the outlet end of the water pump 6. A suction pipe 5 is fixedly connected to the suction end of the water pump 6. A sampling tube 4 that penetrates the fixed plate 8 and is fixedly connected to the penetration part is fixedly connected to one end of the suction pipe 5. A sealing ring 20 is slidably connected to the inner wall of the sampling tube 4. A sampling tube 21 that is fixedly connected to the inner wall of the sealing ring 20 is fixedly connected to the inner wall of the sealing ring 20. The lower end of the sampling tube 21 penetrates the partition plate 17 and is fixedly connected to the penetration part.

[0033] In this embodiment, starting the water pump 6 allows groundwater at a specified depth to be sampled through sampling tube 4, sampling tube 21, and extraction tube 5, and then discharged and collected through the outlet tube 7, thus performing sampling at a fixed depth. The sealing ring 20 improves the sealing performance of sampling tube 21 when it slides inside sampling tube 4.

[0034] Example 3

[0035] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the sealing mechanism includes a sealing sleeve 22, which penetrates the partition 17 and is fixedly connected to the penetration portion. An electric push rod 16 fixedly connected to the partition 17 is provided at the upper end of the sealing sleeve 22. The telescopic rod of the electric push rod 16 penetrates the sealing sleeve 22 and is slidably connected to the penetration portion. A square filter cylinder 18 slidably connected to the inner wall of the sampling cylinder 2 is fixedly connected at the lower end of the telescopic rod of the electric push rod 16. A sealing plug plate 19 sleeved and connected to the inner wall of the sampling cylinder 2 is fixedly connected at the lower end of the square filter cylinder 18. A sealing plate 13 is fixedly connected to the lower end face of the sealing plug plate 19.

[0036] In this embodiment, the electric push rod 16 can move the square filter cylinder 18, the sealing plug plate 19 and the sealing plate 13 downward, thereby opening the lower end of the sampling cylinder 2, so as to sample the groundwater at a specified depth. The square filter cylinder 18 can also prevent impurities in the groundwater from being extracted during sampling, thus filtering out impurities.

[0037] Example 4

[0038] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution. Preferably, the lifting mechanism 15 includes a trapezoidal lead screw 153, which passes through a corresponding limiting slide plate 10 and is threadedly connected to the through portion. The upper end of the trapezoidal lead screw 153 passes through a support frame 1 and is rotatably connected to the through portion. A fixing frame 151 is provided at the upper end of the trapezoidal lead screw 153 and is fixedly connected to the support frame 1. A servo motor 152 is fixedly connected inside the fixing frame 151. The output end of the servo motor 152 is fixedly connected to the upper end of the trapezoidal lead screw 153. A controller 11 is fixedly connected to the front side of the support frame 1, and a base plate 14 is fixedly connected to the lower end of the support frame 1.

[0039] In this embodiment, the servo motor 152 drives the trapezoidal lead screw 153 to rotate. The rotation of the trapezoidal lead screw 153 causes the corresponding limiting slide plate 10 to move downward, thereby moving the sampling cylinder 2 downward and allowing it to penetrate deep into the groundwater for sampling. The controller 11 can be electrically connected to the electric push rod 16 and the water pump 6 for easy control.

[0040] The specific working principle and usage method of this utility model are as follows:

[0041] This utility model provides a groundwater quality testing and sampling device, such as... Figure 1-5As shown, during use, it is powered by an external power supply. The servo motor 152 starts the trapezoidal screw 153 to rotate. The rotation of the trapezoidal screw 153 can cause the corresponding limit slide plate 10 to move down, thereby causing the sampling cylinder 2 to move down and penetrate into the groundwater for sampling. The depth of the sampling cylinder 2 into the groundwater can be observed through the liquid level line 12. The sealing plate 13 and the sealing plug plate 19 can seal the lower end of the sampling cylinder 2 to prevent groundwater from entering the interior of the sampling cylinder 2 before the specified sampling depth is reached. When the sampling depth is reached, the electric push rod 16 is controlled to move the square filter cylinder 18, the sealing plug plate 19, and the sealing plate 13 downward, thereby opening the lower end of the sampling cylinder 2. Then, the water pump 6 is started so that the groundwater at this depth can be sampled through the sampling tube 4, the sampling tube 21, and the extraction tube 5. Then, it can be discharged and collected through the discharge tube 7, thereby sampling the groundwater at the specified depth. The square filter cylinder 18 can also prevent impurities in the groundwater from being extracted during sampling, thus filtering out impurities.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A groundwater quality testing and sampling device, comprising a support frame (1), characterized in that, The upper end face of the support frame (1) is provided with a square opening (3), and a sampling tube (2) is slidably connected inside the square opening (3). A liquid level line (12) is provided on the front end face of the sampling tube (2). A partition (17) is fixedly connected to the lower end of the sampling tube (2). A sampling mechanism is provided at the upper end of the partition (17). A sealing mechanism is provided at the lower end of the sampling tube (2). Sliding grooves (9) are provided on both the left and right sides of the support frame (1). A limiting slide plate (10) is slidably connected to the inner wall of the sliding groove (9). One end of the limiting slide plate (10) is fixedly connected to the sampling tube (2). A lifting mechanism (15) is provided inside the sliding groove (9) on the left side of the support frame (1).

2. The groundwater quality testing and sampling device according to claim 1, characterized in that, The sampling mechanism includes a fixed plate (8), which is fixedly connected to the upper end face of the support frame (1). A water pump (6) is fixedly connected to the upper end face of the fixed plate (8), and an outlet pipe (7) is fixedly connected to the outlet end of the water pump (6).

3. The groundwater quality testing and sampling device according to claim 2, characterized in that, The pump (6) is fixedly connected to a pumping pipe (5). One end of the pumping pipe (5) is fixedly connected to a sampling tube (4) that passes through the fixed plate (8) and is fixedly connected to the through part. The inner wall of the sampling tube (4) is slidably connected to a sealing ring (20). The inner wall of the sealing ring (20) is fixedly connected to a sampling tube (21). The lower end of the sampling tube (21) passes through the partition plate (17) and is fixedly connected to the through part.

4. The groundwater quality testing and sampling device according to claim 1, characterized in that, The sealing mechanism includes a sealing sleeve (22), which penetrates the partition (17) and is fixedly connected to the penetration portion. An electric push rod (16) is fixedly connected to the partition (17) at the upper end of the sealing sleeve (22). The telescopic rod of the electric push rod (16) penetrates the sealing sleeve (22) and is slidably connected to the penetration portion.

5. The groundwater quality testing and sampling device according to claim 4, characterized in that, The lower end of the telescopic rod of the electric push rod (16) is fixedly connected to a square filter cylinder (18) that is slidably connected to the inner wall of the sampling cylinder (2). The lower end of the square filter cylinder (18) is fixedly connected to a sealing plug plate (19) that is sleeved and connected to the inner wall of the sampling cylinder (2). The lower end face of the sealing plug plate (19) is fixedly connected to a sealing plate (13).

6. The groundwater quality testing and sampling device according to claim 1, characterized in that, The lifting mechanism (15) includes a trapezoidal lead screw (153), which passes through the corresponding limiting slide plate (10) and is threadedly connected to the through part. The upper end of the trapezoidal lead screw (153) passes through the support frame (1) and is rotatably connected to the through part. The upper end of the trapezoidal lead screw (153) is provided with a fixing frame (151) fixedly connected to the support frame (1). A servo motor (152) is fixedly connected inside the fixing frame (151). The output end of the servo motor (152) is fixedly connected to the upper end of the trapezoidal lead screw (153).

7. The groundwater quality testing and sampling device according to claim 1, characterized in that, The front side of the support frame (1) is fixedly connected to a controller (11), and the lower end of the support frame (1) is fixedly connected to a base plate (14).

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