Underground water sampling equipment for environmental monitoring

Abstract

The utility model discloses underground water sampling equipment for environmental monitoring, which comprises a bracket, a rotating shaft rotationally connected in the bracket, a first motor mounted at one end of the bracket, a pull rope wound on the outer side of the rotating shaft, a sampling shell arranged at the other end of the pull rope, and a sampling barrel arranged in the sampling shell, a sampling opening is formed in one end of the sampling shell, a second motor is installed in the sampling shell, an electric push rod is arranged on a power output shaft of the second motor, and a connecting plate is arranged at the lower end of the electric push rod; an electromagnet is arranged at the far end of the connecting plate, a spring is arranged at the position, between the piston and the sampling barrel, of the outer side of the pull rod, and an electromagnetic valve is arranged at the sampling opening. When the underground water sampling device is used for sampling water resources, underground water at multiple depths can be sampled after the underground water sampling device is lowered at one time.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling, in particular to groundwater sampling equipment for environmental monitoring. Background Art

[0002] Groundwater is an important body of water on the earth and has a close relationship with human society. The storage of groundwater is like forming a huge reservoir underground, which has become an important water resource indispensable to human society. Groundwater monitoring is the monitoring of groundwater levels, water quality and other data within the jurisdiction by the groundwater monitoring management department, so as to grasp the dynamic changes in time and carry out long-term protection of groundwater. When conducting groundwater monitoring, it is necessary to sample groundwater. In the prior art, a sampler is usually used to sample groundwater when sampling. However, when the existing sampler is used, after sampling once, the sampler needs to be retracted, the water needs to be removed, and then the sampler is lowered for the next sampling. Only one depth of groundwater can be sampled at a time, which is very inconvenient to use. Utility Model Content

[0003] The utility model aims to provide a groundwater sampling device for environmental monitoring, which can complete the sampling of groundwater at multiple depths after being lowered once when sampling water resources.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A groundwater sampling device for environmental monitoring, comprising a bracket, wherein a horizontally arranged rotating shaft is rotatably connected inside the bracket, a first motor for driving the rotating shaft to rotate is installed at one end of the bracket, a pull rope is wound around the outer side of the rotating shaft, one end of the pull rope is connected to the rotating shaft, a sampling shell is arranged at the other end of the pull rope, a plurality of sampling cylinders are arranged at equal intervals at one end of the sampling shell away from the pull rope, a piston is slidably connected inside each sampling cylinder, a pull rod passing through the sampling shell and slidably connected to the piston is arranged at one end of each piston close to the pull rope, and an iron block is arranged at one end of each pull rod passing through the sampling shell;

[0006] A plurality of sampling ports which are arranged at equal intervals and correspond one to one with the sampling tubes are provided at one end of the sampling housing away from the pull rope, a second motor is installed inside the sampling housing near the end of the pull rope, an electric push rod is provided on the power output shaft of the second motor, a connecting plate is provided at the lower end of the electric push rod, an electromagnet matching the iron block is provided at one end of the connecting plate away from the electric push rod, a spring is provided on the outer side of each pull rod between the corresponding piston and the corresponding sampling tube, a solenoid valve is provided at each sampling port, and when the electromagnet is energized, a force of attraction with the iron block is generated which is greater than the elastic force generated by the spring.

[0007] By adopting the above technical solution, when sampling groundwater, first fix the bracket, then start the first motor, the first motor drives the rotating shaft to rotate, the pull rope is lowered from the rotating shaft, and then the sampling shell is lowered into the groundwater. When sampling is needed, start the second motor, open the solenoid valve, the second motor drives the electric push rod to rotate, the electric push rod drives the connecting plate to rotate, the connecting plate drives the electromagnet to rotate, the electromagnet is rotated to the top of the magnet, and then the electromagnet is energized, suction is generated between the electromagnet and the iron block, and then the electric push rod is retracted, and the electric push rod is driven by the electromagnetic The iron drives the pull rod to slide relative to the sampling tube, and then pulls the piston to extract the groundwater from the sampling port into the sampling tube, and then closes the corresponding solenoid valve. When changing the depth for sampling, the electromagnet attracts each iron block, shrinks the electric push rod, drives the piston of each sampling tube to slide, and extracts groundwater of different depths into the sampling tube, and then closes the corresponding solenoid valve. When it is necessary to take out the groundwater in the sampling tube, open the solenoid valve, and then the spring force drives the piston to slide relative to the sampling tube, and then the piston presses the groundwater to take the groundwater out of the sampling tube through the sampling port.

[0008] The utility model is further configured as follows: a support foot is provided at the spacing at the lower end of the bracket, and a conical block is provided at one end of each bracket away from the second motor.

[0009] The utility model is further configured as follows: a plurality of control buttons are arranged at equal intervals on the upper end of the bracket, and a storage battery for providing power is arranged at one end of the bracket.

[0010] The utility model is further configured as follows: a conical counterweight is provided at one end of the sampling housing away from the pull rope.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] After being lowered once, it is convenient to sample groundwater at different depths. The electromagnet is energized to generate suction between it and the iron block, and then the electric push rod is contracted to drive the piston to slide relative to the sampling tube, and then the groundwater is ejected into the sampling tube. The electromagnet generates suction with the iron block respectively, and the electric push rod is contracted to drive the pistons in each sampling tube to slide, allowing groundwater at different depths to enter the sampling tube. After sampling is completed, the piston is driven to slide under the elastic force of the spring to take out the groundwater in the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial cross-sectional view of the utility model;

[0015] Figure 3 It is a partial cross-sectional view of the sampling housing of the utility model.

[0016] In the figure: 1. bracket; 2. first motor; 3. rotating shaft; 4. pull rope; 5. battery; 6. sampling housing; 7. sampling port; 8. solenoid valve; 9. sampling tube; 10. piston; 11. pull rod; 12. iron block; 13. second motor; 14. electric push rod; 15. connecting plate; 16. electromagnet; 17. spring; 18. conical block; 19. conical counterweight block; 20. control button. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0019] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example, see Figure 1-3A groundwater sampling device for environmental monitoring includes a bracket 1, the upper end of the bracket 1 is rotatably connected to a horizontally arranged rotating shaft 3, a first motor 2 for driving the rotating shaft 3 to rotate is installed on the upper side of the right end of the bracket 1, an operating table is arranged at the upper end of the bracket 1, six control buttons 20 are arranged at equal intervals at the upper end of the bracket 1, a battery 5 for providing power is arranged at the lower side of the left end of the bracket 1, four conical blocks 18 are arranged at equal intervals at the lower end of the bracket 1, which can facilitate the bracket 1 to be stably fixed and prevent the bracket 1 from shaking, a pull rope 4 is wrapped around the outer side of the rotating shaft 3, one end of the pull rope 4 is connected to the rotating shaft 3, and the other end of the pull rope 4 is provided with a sampling shell 6.

[0022] Four sampling tubes 9 are arranged at equal intervals at the lower end of the sampling housing 6, and four sampling ports 7 are arranged at equal intervals and correspond to the sampling tubes 9 one by one at the lower end of the sampling housing 6. A solenoid valve 8 is arranged at each sampling port 7, and a piston 10 is slidably connected to the inside of each sampling tube 9. A pull rod 11 is arranged at the upper end of each piston 10, which passes through the sampling tube 9 and is slidably connected to the piston 10. An iron block 12 is arranged at the upper end of each pull rod 11, which passes through the sampling tube 9. A spring 17 is arranged on the outer side of each pull rod 11 between the corresponding piston 10 and the corresponding sampling tube 9, so that the groundwater in the sampling tube 9 can be easily taken out.

[0023] A second motor 13 is installed at the upper end of the sampling shell 6, and an electric push rod 14 is set on the power output shaft of the second motor 13. A connecting plate 15 is set at the lower end of the electric push rod 14. An electromagnet 16 cooperating with the iron block 12 is set at the end of the connecting plate 15 away from the electric push rod 14, which can facilitate the sampling of groundwater and the sampling of groundwater that does not pass the depth. When the electromagnet 16 is energized, it generates a force of attraction with the iron block 12 and is greater than the elastic force generated by the spring 17. A conical counterweight block 19 is set in the middle of the lower end of the sampling shell 6, which can reduce the resistance during sinking and increase the weight during sinking, so as to facilitate the sampling shell 6 to sink to different depths.

[0024] Usage: When sampling groundwater, first fix the bracket 1 through the conical block, then start the first motor 2, the battery 5 provides power, the first motor 2 drives the shaft 3 to rotate, the pull rope 4 is lowered from the shaft 3, and then the sampling shell 6 is lowered into the groundwater. Under the action of the counterweight, it can sink to a deeper depth. When sampling is required, the second motor 13 is started through the control button 20, and a solenoid valve 8 is opened. The second motor 13 drives the electric push rod 14 to rotate, and the electric push rod 14 drives the connecting plate 15 to rotate, and the connecting plate 15 drives the electromagnet 16 to rotate, and the electromagnet 16 is rotated to the top of the magnet, and then the electromagnet 16 is energized, and suction is generated between the electromagnet 16 and the iron block 12, and then the electromagnet 16 is retracted. The electric push rod 14 is driven, and the electric push rod 14 drives the pull rod 11 to slide relative to the sampling tube 9 through the electromagnet 16, and then pulls the piston 10, compresses the spring 17, and extracts the groundwater from the sampling port 7 into the sampling tube 9, and then closes the solenoid valve 8. When the sampling depth is changed, the electromagnet 16 attracts each iron block 12, shrinks the electric push rod 14, drives the piston 10 of each sampling tube 9 to slide, and extracts the groundwater of different depths into the sampling tube 9, and then closes the corresponding solenoid valve 8. When it is necessary to take out the groundwater in the sampling tube 9, open the solenoid valve 8, and then the spring 17 drives the piston 10 to slide relative to the sampling tube 9 under the elastic force, and then the piston 10 presses the groundwater to take the groundwater out of the sampling tube 9 through the sampling port 7.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A groundwater sampling device for environmental monitoring, comprising a bracket (1), characterized in that: The bracket (1) is internally rotatably connected to a horizontally arranged rotating shaft (3), one end of the bracket (1) is equipped with a first motor (2) for driving the rotating shaft (3) to rotate, a pull rope (4) is wound around the outer side of the rotating shaft (3), one end of the pull rope (4) is connected to the rotating shaft (3), the other end of the pull rope (4) is provided with a sampling housing (6), a plurality of sampling barrels (9) are evenly spacedly arranged at one end of the sampling housing (6) away from the pull rope (4), each sampling barrel (9) is slidably connected to a piston (10), each piston (10) is provided with a pull rod (11) passing through the sampling housing (6) and slidably connected to the piston (10), and each pull rod (11) passing through the sampling housing (6) and slidably connected to the pull rope (4) is provided at one end, and an iron block (12) is provided at one end of each pull rod (11) passing through the sampling housing (6); The sampling housing (6) is provided with a plurality of sampling ports (7) arranged at equal intervals and corresponding to the sampling tubes (9) at one end thereof, and a second motor (13) is installed inside the sampling housing (6) at one end thereof close to the pulling rope (4). The power output shaft of the second motor (13) is provided with an electric push rod (14). A connecting plate (15) is provided at the lower end of the electric push rod (14). An electromagnet (16) matching the iron block (12) is provided at one end of the connecting plate (15) away from the electric push rod (14). A spring (17) is provided on the outer side of each pulling rod (11) between the corresponding piston (10) and the corresponding sampling tube (9). A solenoid valve (8) is provided at each sampling port (7). When the electromagnet (16) is energized, it generates a force that attracts the iron block (12) and is greater than the elastic force generated by the spring (17).

2. A groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A support foot is provided at the spacing at the lower end of the bracket (1), and a conical block (18) is provided at one end of each bracket (1) away from the second motor (13).

3. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A plurality of control buttons (20) are arranged at equal intervals on the upper end of the bracket (1), and a storage battery (5) for providing power is arranged on one end of the bracket (1).

4. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that: A conical counterweight (19) is provided at one end of the sampling housing (6) away from the pull rope (4).

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