Multi-point sampling device

Abstract

The utility model relates to the technical field of water conservancy projects, in particular to a multi-point sampling device which comprises a floating frame, a fixing plate is fixedly mounted on one side of the floating frame, sliding grooves are formed in the four sides of the fixing plate, sliding blocks are slidably mounted in the multiple sliding grooves, a water storage tank is fixedly mounted on the side, away from the fixing plate, of the floating frame, and the water storage tank is fixedly mounted on the other side of the floating frame. A plurality of water suction pumps are fixedly mounted on one side of the water storage tank; according to the scheme, a plurality of sampling pipes are arranged, so that an upper-layer water sample can be prevented from influencing a lower-layer water sample, and different sampling pipes are used for sampling at each depth, so that the risk of cross contamination is reduced, the situation that re-sampling is needed due to cross contamination is avoided, time and resources are saved, and the sampling efficiency is improved. Meanwhile, the accurate depth sampling data is beneficial to subsequent water quality analysis, the reliability of the result is ensured, the electromagnetic valve is arranged, so that when the electromagnetic valve is not opened, the sample does not make contact with the external environment, and the cross contamination risk of the sample in the collection process is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water conservancy projects, in particular to a sampling device for multi-point sampling. BACKGROUND

[0002] The water conservancy project refers to an engineering built for controlling and allocating water resources in nature through various engineering measures and non-engineering measures to achieve the purpose of eliminating harm and benefiting. The engineering usually includes different types of hydraulic structures such as dikes, reservoirs, hydropower stations, water gates, channels, waterways, raft channels, fishways and the like, and activities such as water flow control, regulation, distribution, transportation and sediment treatment through the hydraulic structures; the water quality detection sampling refers to extracting a certain amount of water sample from a water body at a specific time, place and condition through appropriate technology and method so as to carry out subsequent water quality analysis and evaluation.

[0003] The Chinese patent network discloses a water environment detection sampling device for multi-point sampling, which comprises a floating plate, a sampling hole is arranged in the floating plate, a water suction pipe is arranged in the sampling hole, a driving assembly is arranged on one side of the water suction pipe, and a limiting assembly is arranged on the other side of the water suction pipe; a water tank is arranged at one end of the floating plate away from the sampling hole, a water distribution assembly is arranged at the top end of the water tank, a water pump is arranged on the side wall of the water tank, the water inlet of the water pump is connected with the top end of the water suction pipe through a hose, and the water outlet of the water pump is connected with the water distribution assembly; a controller and a storage battery are sequentially arranged in the floating plate; a plurality of first floating balls are arranged at the bottom end of the floating plate, and a plurality of second floating balls are arranged on the outer side wall of the floating plate. The water environment detection sampling device for multi-point sampling can collect water samples at multiple depths at one time, and can efficiently complete multi-point water quality detection, and the publication number is CN219200993U.

[0004] The following problems exist in the scheme: the device moves the water suction pipe up and down to sample water at different depths, but the water suction pipe may mix water samples at different depths due to water flow or shaking when sampling water at different depths, which affects the water quality result, and the previous sample may remain in the pipe, especially if it is not properly cleaned and emptied, which may contaminate the subsequent sample.

[0005] Therefore, to solve the above problems, the application provides a sampling device for multi-point sampling. Invention content

[0006] In order to solve the problem that the water suction pipe samples water at different depths and causes cross contamination of water at different depths, the application provides a sampling device for multi-point sampling.

[0007] The application provides a sampling device for multipoint sampling, which comprises a floating frame, a fixed plate is fixedly installed on one side of the floating frame, sliding grooves are arranged on four sides of the fixed plate, sliding blocks are slidingly installed in the sliding grooves, a water storage tank is fixedly installed on the side, away from the fixed plate, of the floating frame, a plurality of water pumps are fixedly installed on one side of the water storage tank, sampling pipes are arranged between the bottom ends of the water pumps and the sliding blocks, the sampling pipes penetrate through the top of the sliding block, and electromagnetic valves are arranged at the bottom ends of the sampling pipes; sampling holes are formed through the four sides of the bottom of the floating frame, and the sliding blocks are coaxially arranged with the sampling holes; water pipes are arranged in communication between the top ends of the water pumps and one side of the water storage tank, and driving mechanisms are arranged in the sliding grooves.

[0008] Preferably, a plurality of partition plates are fixedly installed in the water storage tank, and the partition plates are respectively located between adjacent two water pumps.

[0009] Preferably, the driving mechanism comprises a screw rod and a motor, the screw rod is rotatably installed in the sliding groove, the screw rod penetrates through the sliding block, the screw rod is threadedly connected with the sliding block, the motor is fixedly installed on the top of the fixed plate, and the output end of the motor is fixedly connected with the top end of the screw rod through a bolt.

[0010] Preferably, a triangular block is fixedly installed on one side of the floating frame, a propeller propulsion mechanism is arranged on the other side of the floating frame, and a plurality of floating balls are fixedly installed on the side edges and the bottom of the floating frame.

[0011] Preferably, a tank cover is rotatably installed at the top end of the water storage tank, a sealing gasket is fixedly installed on the top of the tank cover, and a handle is fixedly installed on one side of the tank cover.

[0012] Preferably, a controller is arranged in the floating frame.

[0013] Preferably, support plates are fixedly installed at the bottom of the sliding blocks, and a plurality of support rods are fixedly installed on the bottom of the sliding blocks.

[0014] In conclusion, the application has the following beneficial technical effects: the plurality of sampling pipes can prevent the upper water sample from affecting the lower water sample, different sampling pipes are used for sampling at each depth to reduce the risk of cross contamination, and the situation of re-sampling due to cross contamination is avoided, thereby saving time and resources; accurate depth sampling data is helpful for subsequent water quality analysis and ensures the reliability of the results; when the electromagnetic valve is not opened, the sample does not contact the external environment, thereby reducing the risk of cross contamination of the sample in the sampling process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of an embodiment of the application;

[0016] Figure 2 is a perspective view of the floating frame and sampling hole of the embodiment of the present application;

[0017] Figure 3 is a perspective view of the water storage tank of the embodiment of the present application;

[0018] Figure 4 is a perspective view of the fixed plate of the embodiment of the present application;

[0019] Figure 5 is a perspective view of the fixed plate of the embodiment of the present application from another angle.

[0020] Marked as follows: 1, floating frame; 2, support rod; 3, triangular block; 4, controller; 5, floating ball; 6, tank cover; 7, handle; 8, water storage tank; 9, sampling hole; 10, propeller propulsion mechanism; 11, partition; 12, water delivery pipe; 13, water pump; 14, fixed plate; 15, screw rod; 16, motor; 17, sampling pipe; 18, sliding block; 19, electromagnetic valve; 20, support plate. DETAILED DESCRIPTION

[0021] The following will be described in detail with reference to the accompanying drawings Figure 1 - Figure 5 The present application will be further described in detail.

[0022] Embodiment:

[0023] A multi-point sampling sampling device, referring to Figure 1 - Figure 5 , comprising a floating frame 1, a fixed plate 14 is fixedly installed on one side of the floating frame 1, sliding grooves are arranged on four sides of the fixed plate 14, sliding blocks 18 are slidingly installed in the plurality of sliding grooves, a water storage tank 8 is fixedly installed on the side of the floating frame 1 away from the fixed plate 14, a plurality of water pumps 13 are fixedly installed on one side of the water storage tank 8, sampling pipes 17 are arranged between the bottom ends of the plurality of water pumps 13 and the sliding blocks 18, the plurality of sampling pipes 17 penetrate through the top of the sliding block 18, electromagnetic valves 19 are arranged at the bottom ends of the plurality of sampling pipes 17, sampling holes 9 are formed through the four sides of the bottom of the floating frame 1, and the plurality of sliding blocks 18 are coaxially arranged with the sampling holes 9; water delivery pipes 12 are arranged in communication with the top ends of the plurality of water pumps 13 and one side of the water storage tank 8, and driving mechanisms are arranged in the plurality of sliding grooves; by arranging the plurality of sampling pipes 17, the upper water sample can be prevented from affecting the lower water sample, different sampling pipes 17 are used for sampling at each depth, the risk of cross contamination is reduced, the situation of re-sampling due to cross contamination is avoided, time and resources are saved, accurate depth sampling data is helpful for subsequent water quality analysis, the reliability of the results is ensured, and by arranging the electromagnetic valves 19, the sample will not be in contact with the external environment when the electromagnetic valves 19 are not opened, the risk of cross contamination of the sample in the sampling process is reduced.

[0024] Referring toFigure 3 The water storage tank 8 is internally fixedly installed with multiple partitions 11, which are respectively located between two adjacent water pumps 13, and can separate samples of different depths.

[0025] With reference to Figure 4 Figure 5 The driving mechanism includes a screw rod 15 and a motor 16, the screw rod 15 is rotatably installed in the sliding groove, penetrates through the sliding block 18, and is threadedly connected with the sliding block 18. The top of the fixed plate 14 is fixedly installed with the motor 16, the output end of the motor 16 is fixedly connected with the top end of the screw rod 15 through a latch, so as to drive the sliding block 18 to move downward, and the sliding block 18 drives the sampling tube 17 to move downward to sample.

[0026] With reference to Figure 1 Figure 2 One side of the floating frame 1 is fixedly installed with a triangular block 3, the other side of the floating frame 1 is provided with a propeller propulsion mechanism 10, and the side edges and the bottom of the floating frame 1 are fixedly installed with multiple floating balls 5, so that the floating frame 1 can move forward, the triangular block 3 can reduce resistance, and the floating ball 5 can make the floating frame 1 float on the water surface.

[0027] With reference to Figure 1 and Figure 3 The top of the water storage tank 8 is rotatably installed with a tank cover 6, the top of the tank cover 6 is fixedly installed with a sealing gasket, and one side of the tank cover 6 is fixedly installed with a handle 7, so that the samples drawn in the water storage tank 8 can be sealed.

[0028] With reference to Figure 2 The inside of the floating frame 1 is provided with a controller 4, multiple motors 16, water pumps 13 and electromagnetic valves 19 are electrically connected with an external power supply through the controller 4, so that the start and stop of the motors 16, the water pumps 13 and the electromagnetic valves 19 can be controlled.

[0029] With reference to Figure 4 Figure 5 Multiple sampling tubes 17 are fixedly installed with support plates 20 near the bottom of the sliding block 18, and the support plates 20 and the bottom of the sliding block 18 are fixedly installed with multiple support rods 2, so that the sampling tubes 17 can be supported.

[0030] ​​​Working principle: when in use, the propeller propulsion mechanism 10 can be started to reach the designated location, the triangular block 3 reduces the resistance of the floating frame 1 when advancing, after reaching the designated location, according to the required sampling depth, one of the motors 16 is started through the controller 4, one of the motors 16 drives the screw rod 15 to rotate, the screw rod 15 drives the sliding block 18 to move downward, the sliding block 18 drives the sampling pipe 17 to move downward, the support plate 20 and the support rod 2 support the sampling pipe 17, so that the sampling pipe 17 reaches the designated depth, and then the electromagnetic valve 19 and the water pump 13 are started through the controller 4, the electromagnetic valve 19 is opened, and the water pump 13 pumps out the water at the designated depth and transports it to the water storage tank 8 through the water pipe 12.

[0031] The above describes an exemplary embodiment of a multi-point sampling sampling device provided by the present disclosure with reference to a preferred embodiment, however, those skilled in the art can understand that various modifications and changes can be made to the above specific embodiments without departing from the concept of the present disclosure, and various technical features and structures proposed by the present disclosure can be combined without exceeding the protection scope of the present disclosure, and the protection scope of the present disclosure is determined by the appended claims.

Claims

1. A sampling device for multipoint sampling comprising a float frame (1), characterized in that: One side of the floating frame (1) is fixedly installed with a fixed plate (14), the four sides of the fixed plate (14) are provided with a sliding groove, a plurality of sliding grooves are slidably installed with a sliding block (18), the side of the floating frame (1) away from the fixed plate (14) is fixedly installed with a water storage tank (8), one side of the water storage tank (8) is fixedly installed with a plurality of water pumps (13), a sampling pipe (17) is arranged between the bottom end of the plurality of water pumps (13) and the sliding block (18), the plurality of sampling pipes (17) penetrate the top of the sliding block (18), the bottom end of the plurality of sampling pipes (17) is provided with an electromagnetic valve (19), the four sides of the bottom of the floating frame (1) are throughly provided with a sampling hole (9), and the plurality of sliding blocks (18) are coaxially arranged with the sampling hole (9); the top of the plurality of water pumps (13) and one side of the water storage tank (8) are communicated with a water pipe (12), and the plurality of sliding grooves are provided with a driving mechanism.

2. The sampling device of claim 1, wherein: A plurality of partition plates (11) are fixedly installed in the water storage tank (8), and the plurality of partition plates (11) are respectively located between adjacent two water pumps (13).

3. The sampling device of claim 1, wherein: The driving mechanism comprises a screw rod (15) and a motor (16), the screw rod (15) is rotatably installed in the sliding groove, the screw rod (15) penetrates the sliding block (18), the screw rod (15) is threadedly connected with the sliding block (18), the top of the fixed plate (14) is fixedly installed with the motor (16), and the output end of the motor (16) is fixedly connected with the top end of the screw rod (15) through a bolt.

4. The sampling device of claim 1, wherein: One side of the floating frame (1) is fixedly installed with a triangular block (3), the other side of the floating frame (1) is provided with a propeller propulsion mechanism (10), and the side edge and the bottom of the floating frame (1) are fixedly installed with a plurality of floating balls (5).

5. The sampling device of claim 2, wherein: The top of the water storage tank (8) is rotatably installed with a tank cover (6), the top of the tank cover (6) is fixedly installed with a sealing gasket, and one side of the tank cover (6) is fixedly installed with a handle (7).

6. The sampling device of claim 4, wherein: The inside of the floating frame (1) is provided with a controller (4).

7. The sampling device of claim 1, wherein: The bottom of the plurality of sampling pipes (17) close to the sliding block (18) is fixedly installed with a support plate (20), and the bottom of the support plate (20) and the sliding block (18) are fixedly installed with a plurality of support rods (2).

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