Water quality sampling device for environmental monitoring

Abstract

The utility model provides a water quality sampling device for environmental monitoring, which comprises a base plate, the lower end of the base plate is provided with a moving mechanism and a buoyancy mechanism, the upper end of the base plate is provided with three groups of fixed cylinders, and first underwater electric push rods are fixedly mounted in the three groups of fixed cylinders; and the lower end of the first underwater electric push rod is fixedly connected with a connecting cylinder, and exhaust holes are evenly formed in the upper end of the connecting cylinder. According to the utility model, the three groups of fixed cylinders are arranged, so that water bodies with three depths can be sampled at the same time, more comprehensive water body condition information can be provided, the distribution characteristics of the water bodies, including temperature, salinity, dissolved oxygen and the like, can be better known, and the stratification phenomenon in the water bodies can be better captured, so that the structure and the characteristics of the water bodies can be better understood; multi-depth sampling provides richer data, changes and trends of the water body can be monitored more accurately, and the requirements of specific projects for water body information can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental monitoring, and in particular relates to a water quality sampling device for environmental monitoring. Background Art

[0002] Environmental monitoring is an essential basic work for environmental protection. In water quality testing, water sampling is a very important link, and sampling personnel are needed to collect water at different depths for water quality monitoring.

[0003] A water quality sampling device for environmental monitoring with publication number CN217738747U includes a bottle body, a bottle cap is movably connected to the upper surface of the bottle body, a sealing ring is fixedly connected to the lower surface of the bottle cap, a thread is provided on the bottom of the outer surface of the sealing ring, and the sealing ring is rotatably connected to the bottle body; an open groove is provided on the upper surface of the bottle cap, and a telescopic shaft is movably connected to the inner wall of the open groove. The utility model discloses an environmental monitoring water quality sampling device. Through the arrangement of a telescopic shaft, a connecting shaft, a spring column, a movable plug, a connecting rod and a fixed plug, when the water sample is collected, the telescopic shaft is lifted upward to drive the spring column to stretch. The elasticity of the spring column itself drives the connecting shaft and the movable plug to shrink upward, so that the connecting rod and the fixed plug also move accordingly, so that the fixed plug blocks the original gap of the device, and realizes that the sampling device can autonomously control itself to take in water again after sampling, thus avoiding sample confusion and improving the accuracy of the monitoring result. However, the above-mentioned environmental monitoring water quality sampling device can only collect water samples of a certain depth at a time, and the sampling depth is single. There may be differences in temperature, turbidity, dissolved oxygen, etc. in water bodies at different depths, and sampling from only one depth may not reflect these differences. Therefore, it is necessary to provide a new environmental monitoring water quality sampling device to solve the above-mentioned technical problems. Utility Model Content

[0004] The utility model aims to provide a water quality sampling device for environmental monitoring.

[0005] In order to solve the above technical problems, the utility model provides a water quality sampling device for environmental monitoring, including a base plate, a moving mechanism and a buoyancy mechanism are arranged at the lower end of the base plate, three groups of fixed cylinders are arranged at the upper end of the base plate, and a first underwater electric push rod is fixedly installed in each of the three groups of fixed cylinders, and the lower end of the first underwater electric push rod is fixedly connected to a connecting cylinder, exhaust holes are evenly opened at the upper end of the connecting cylinder, and an exhaust mechanism is arranged in the exhaust hole, the lower end of the connecting cylinder is connected to a sampling cylinder, and a piston mechanism and a sealing mechanism are arranged in the sampling cylinder.

[0006] Preferably, the moving mechanism comprises support rods, the support rods are fixedly mounted on the lower surface of the base plate, the support rods are distributed in four groups in a rectangular structure, and the lower surfaces of the four groups of support rods are all fixedly connected with rollers.

[0007] Preferably, the buoyancy mechanism comprises fixing rods, which are fixedly mounted on the lower surface of the base plate. The fixing rods are arranged in four groups in a diamond-shaped structure, and the lower surfaces of the four groups of support rods are all fixedly connected to the buoyancy sleeve.

[0008] Preferably, the exhaust mechanism includes a fixed block, which is fixedly installed in the exhaust hole. The fixed blocks are arranged in two groups in opposite directions, and the upper surfaces of the two groups of fixed blocks are connected to sealing plates through springs, and the outer size of the sealing plate matches the inner size of the exhaust hole.

[0009] Preferably, threads are distributed on the outer surface of the sampling tube, thread grooves matching the threads are provided on the inner surface of the connecting tube, and the connecting tube and the sampling tube form a threaded connection.

[0010] Preferably, a limiting sleeve is fixedly connected to the inner wall of the connecting tube, and the lower surface of the limiting sleeve is in conflict with the upper surface of the sampling tube.

[0011] Preferably, the piston mechanism includes a second underwater electric push rod, both ends of which are respectively connected to the connecting tube and the piston plate, and the piston plate is arranged in the sampling tube, and the inner size of the sampling tube matches the outer size of the piston plate.

[0012] Preferably, the sealing mechanism includes a cross bar, which is fixedly installed in the sampling barrel, and the lower surface of the cross bar is connected to a fixed sleeve, and a movable rod is movably inserted into the lower end of the fixed sleeve, and a limit block is fixedly installed on the outer surface of the movable rod, and a sliding groove matching the limit block is opened in the fixed sleeve, and the lower surface of the movable rod is fixedly connected to a buoyancy plate, and the outer size of the buoyancy plate matches the inner size of the bottom of the sampling barrel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can sample water bodies at three depths at the same time by setting three sets of fixed cylinders, which can provide more comprehensive and comprehensive water status information, help to better understand the distribution characteristics of water bodies, including temperature, salinity, dissolved oxygen, etc., and help to capture the stratification phenomenon in water bodies, so as to better understand the structure and characteristics of water bodies. Multi-depth sampling provides richer data, can more accurately monitor the changes and trends of water bodies, and can meet the needs of specific projects for water information;

[0015] 2. The utility model is provided with a mobile mechanism and a buoyancy mechanism, which can maintain the stability of the device on the ground and the water surface, simplify the transportation process of the device, reduce labor costs and time, enhance its flexibility, adaptability and ease of operation, and at the same time improve the accuracy and coverage of sampling, which is conducive to more comprehensive monitoring of water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a water quality sampling device for environmental monitoring according to the utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of a water quality sampling device for environmental monitoring according to the utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the components of a water quality sampling device for environmental monitoring according to the utility model;

[0020] Figure 4 The utility model is a water quality sampling device for environmental monitoring Figure 3 The enlarged structural diagram at A in the middle;

[0021] Figure 5 This is a schematic diagram of the exploded structure of the components of a water quality sampling device for environmental monitoring according to the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the exploded structure of the plugging mechanism components of a water quality sampling device for environmental monitoring.

[0023] In the figure: 1. base plate; 2. support rod; 3. roller; 4. fixing rod; 5. buoyancy sleeve; 6. fixing tube; 7. first underwater electric push rod; 8. connecting tube; 9. exhaust hole; 10. fixing block; 11. spring; 12. sealing plate; 13. sampling tube; 14. limiting sleeve; 15. second underwater electric push rod; 16. piston plate; 17. cross bar; 18. fixing sleeve; 19. movable rod; 20. buoyancy plate. DETAILED DESCRIPTION

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A water quality sampling device for environmental monitoring includes a substrate 1, a moving mechanism and a buoyancy mechanism are arranged at the lower end of the substrate 1, three groups of fixed tubes 6 are arranged at the upper end of the substrate 1, and the first underwater electric push rod 7 is fixedly installed in the three groups of fixed tubes 6, and the lower end of the first underwater electric push rod 7 is fixedly connected to a connecting tube 8, and exhaust holes 9 are evenly opened at the upper end of the connecting tube 8, and an exhaust mechanism is arranged in the exhaust hole 9, the lower end of the connecting tube 8 is connected to a sampling tube 13, and a piston mechanism and a blocking mechanism are arranged in the sampling tube 13. The first underwater electric push rod 7 and the second underwater electric push rod 15 in the utility model are both waterproof, and corrosion-resistant materials and high-pressure sealing technology are used to ensure stable operation in an underwater environment.

[0025] The moving mechanism includes a support rod 2, which is fixedly mounted on the lower surface of the substrate 1. The support rod 2 is distributed in four groups in a rectangular structure, and the lower surfaces of the four groups of support rods 2 are all fixedly connected with rollers 3, which is convenient for moving the device after the sampling is completed, reducing labor costs and time, and enhancing the flexibility of the device.

[0026] The buoyancy mechanism includes a fixed rod 4, which is fixedly installed on the lower surface of the base plate 1. The fixed rod 4 is distributed in four groups in a diamond structure, and the lower surfaces of the four groups of support rods 2 are all fixedly connected to the buoyancy sleeve 5. The fixed rod 4 can maintain the stability of the buoyancy sleeve 5, and the buoyancy sleeve 5 can maintain the stability of the device on the water surface, thereby improving the accuracy and coverage of sampling.

[0027] The exhaust mechanism includes a fixed block 10, which is fixedly installed in the exhaust hole 9. There are two groups of fixed blocks 10 distributed opposite to each other, and the upper surfaces of the two groups of fixed blocks 10 are connected to a sealing plate 12 through a spring 11, and the outer size of the sealing plate 12 matches the inner size of the exhaust hole 9. The sealing plate 12 can prevent water samples from entering the connecting tube 8 through the exhaust hole 9, thereby improving the sampling accuracy.

[0028] The outer surface of the sampling tube 13 is provided with threads, and the inner surface of the connecting tube 8 is provided with thread grooves matching the threads. The connecting tube 8 and the sampling tube 13 form a threaded connection. The threaded connection is convenient for disassembly and assembly. At the same time, it can ensure the stability of the sampling tube 13 and facilitate taking out the water sample from the sampling tube 13.

[0029] The inner wall of the connecting tube 8 is fixedly connected to a limiting sleeve 14, and the lower surface of the limiting sleeve 14 conflicts with the upper surface of the sampling tube 13. The limiting sleeve 14 can maintain the stability of the sampling tube 13 and the piston plate 16, thereby improving the stability of the device.

[0030] The piston mechanism includes a second underwater electric push rod 15, both ends of which are connected to the connecting tube 8 and the piston plate 16 respectively, and the piston plate 16 is arranged in the sampling tube 13, and the inner size of the sampling tube 13 matches the outer size of the piston plate 16. The second underwater electric push rod 15 drives the piston plate 16 to move upward, so that the water sample can be drawn into the sampling tube 13, thereby ensuring the sampling effect.

[0031] The blocking mechanism includes a cross bar 17, which is fixedly installed in the sampling tube 13. The lower surface of the cross bar 17 is connected to a fixed sleeve 18, and a movable rod 19 is movably inserted at the lower end of the fixed sleeve 18, and a limit block is fixedly installed on the outer surface of the movable rod 19. A slide groove matching the limit block is opened in the fixed sleeve 18, and a buoyancy plate 20 is fixedly connected to the lower surface of the movable rod 19, and the outer size of the buoyancy plate 20 matches the inner size of the bottom of the sampling tube 13. The buoyancy plate 20 can descend when the sampling tube 13 is moved upward, thereby blocking the sampling port at the lower end of the sampling tube 13 to avoid water sample leakage and improve the accuracy of environmental monitoring.

[0032] The working principle of the water quality sampling device for environmental monitoring provided by the utility model is as follows:

[0033] Step 1: When in use, the device is moved to a suitable position by the roller 3, and then put into the water, the buoyancy sleeve 5 supports the device, the first underwater electric push rod 7 drives the connecting tube 8 to move downward, and at the same time, the buoyancy plate 20 moves upward, and the second underwater electric push rod 15 drives the piston plate 16 to move upward, and the water sample is drawn into the sampling tube 13. At the same time, the gas in the sampling tube 13 drives the sealing plate 12 to stretch the spring 11 to discharge the gas in the sampling tube 13;

[0034] Step 2: When the piston plate 16 stops moving, the spring 11 drives the blocking plate 12 to block the exhaust hole 9, and when the sampling tube 13 moves upward, the buoyancy plate 20 drives the movable rod 19 to move downward to block the sampling port of the sampling tube 13;

[0035] The third step: the device is transferred to the ground, and the sampling tube 13 is rotated to take out the water sample in the sampling tube 13. The above is the whole working principle of the utility model.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water quality sampling device for environmental monitoring, comprising: A base plate (1), characterized in that: a moving mechanism and a buoyancy mechanism are arranged at the lower end of the base plate (1), three groups of fixed cylinders (6) are arranged at the upper end of the base plate (1), and a first underwater electric push rod (7) is fixedly installed in each of the three groups of fixed cylinders (6), and a connecting cylinder (8) is fixedly connected to the lower end of the first underwater electric push rod (7), exhaust holes (9) are evenly opened at the upper end of the connecting cylinder (8), and an exhaust mechanism is arranged in the exhaust hole (9), and a sampling cylinder (13) is connected to the lower end of the connecting cylinder (8), and a piston mechanism and a sealing mechanism are arranged in the sampling cylinder (13).

2. A water quality sampling device for environmental monitoring according to claim 1, characterized in that: The moving mechanism comprises a support rod (2), wherein the support rod (2) is fixedly mounted on the lower surface of the base plate (1), and the support rod (2) is arranged in four groups in a rectangular structure, and the lower surfaces of the four groups of support rods (2) are all fixedly connected with rollers (3).

3. A water quality sampling device for environmental monitoring according to claim 1, characterized in that: The buoyancy mechanism comprises a fixing rod (4) which is fixedly mounted on the lower surface of the base plate (1). The fixing rod (4) is arranged in four groups in a rhombus-shaped structure, and the lower surfaces of the four groups of support rods (2) are all fixedly connected to the buoyancy sleeve (5).

4. A water quality sampling device for environmental monitoring according to claim 1, characterized in that: The exhaust mechanism comprises a fixed block (10), wherein the fixed block (10) is fixedly installed in the exhaust hole (9), and the fixed blocks (10) are arranged in two groups in opposite directions, and the upper surfaces of the two groups of fixed blocks (10) are connected to a blocking plate (12) via a spring (11), and the outer size of the blocking plate (12) matches the inner size of the exhaust hole (9).

5. The water quality sampling device for environmental monitoring according to claim 1, characterized in that: The outer surface of the sampling tube (13) is provided with threads, and the inner surface of the connecting tube (8) is provided with thread grooves matching the threads. The connecting tube (8) and the sampling tube (13) form a threaded connection.

6. A water quality sampling device for environmental monitoring according to claim 1, characterized in that: The inner wall of the connecting tube (8) is fixedly connected to a limiting sleeve (14), and the lower surface of the limiting sleeve (14) is in conflict with the upper surface of the sampling tube (13).

7. A water quality sampling device for environmental monitoring according to claim 1, characterized in that: The piston mechanism comprises a second underwater electric push rod (15), the two ends of which are respectively connected to a connecting tube (8) and a piston plate (16), and the piston plate (16) is arranged in a sampling tube (13), and the inner size of the sampling tube (13) matches the outer size of the piston plate (16).

8. The water quality sampling device for environmental monitoring according to claim 1, characterized in that: The blocking mechanism comprises a cross bar (17), the cross bar (17) is fixedly installed in the sampling tube (13), the lower surface of the cross bar (17) is connected to a fixed sleeve (18), and a movable rod (19) is movably inserted at the lower end of the fixed sleeve (18), and a limit block is fixedly installed on the outer surface of the movable rod (19), a sliding groove matching the limit block is opened in the fixed sleeve (18), and a buoyancy plate (20) is fixedly connected to the lower surface of the movable rod (19), and the outer size of the buoyancy plate (20) matches the inner size of the bottom of the sampling tube (13).

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