A river water sample collection device

Abstract

The present invention discloses a river water sample collection device, including a sampling boat, a rotating frame is arranged in the sampling boat, a plurality of rotating arms extending radially are arranged along the circumferential direction of the rotating frame, each rotating arm includes two supporting arms arranged oppositely, and the two supporting arms are used to support and position the sampling tube, and a column located at the rear side of the rotating frame is also arranged in the sampling boat, a telescopic arm extending forward is arranged at the upper end of the column, a supporting pulley is arranged at the front end of the telescopic arm, and a first steel cable reeling device is arranged at the upper end of the column, and the steel cable guided by the first steel cable reeling device extends downward through the supporting pulley and is connected to the sampling tube taking and placing claw. The present invention can realize sampling of multiple sampling points respectively, and multiple sampling tubes are sequentially grasped, sampled, and stored. At the same time, after sampling, the sampling tube storing the water sample can be directly grasped and recovered, thereby reducing the difficulty of moving the sampling tube after sampling.

Description

Technical Field

[0001] The invention relates to the technical field of environmental monitoring, and in particular to a river water sample collecting device. Background Art

[0002] Environmental monitoring is to track changes in environmental quality and determine the level of environmental quality by testing the content and emissions of various substances that have an impact on humans and the environment, providing a basis and guarantee for environmental management, pollution control and other work. Simply put, understanding the environmental level and conducting environmental monitoring are the prerequisites for carrying out all environmental work. Environmental monitoring usually includes background investigation, determining plans, optimizing site layout, on-site sampling, sample transportation, experimental analysis, data collection, analysis and synthesis, etc.

[0003] On-site sampling is an important part of environmental monitoring and testing. The collection and preservation of water samples is the basis for water pollution control and research. Collect water samples from polluted rivers and lakes, and obtain basic data on water pollution through analysis and measurement.

[0004] Since water samples need to be collected from different locations of rivers and lakes, the existing method is for personnel to collect water samples manually by boat, which is labor-intensive and difficult, especially for some staff members who are prone to seasickness. Summary of the invention

[0005] An embodiment of the present invention provides a river water sample collection device for sampling multiple sampling points. Multiple sampling tubes are sequentially grabbed, sampled, and stored. After sampling, the sampling tubes storing water samples can be directly grabbed, thereby reducing the difficulty of moving the sampling tubes after sampling.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a river water sample collection device, including a sampling boat, a rotating frame is arranged in the sampling boat, and a plurality of rotating arms extending radially are arranged along the circumferential direction of the rotating frame, each rotating arm includes two oppositely arranged support arms, and the two support arms are arranged on both sides of the rotating arm along the axial direction of the rotating frame, and the two support arms are used to support and position the sampling tube.

[0007] The sampling tube comprises a tube body with an internal sample storage cavity, the tube body is provided with at least one sampling port of the internal sample storage cavity, a sampling valve is installed on the sampling port, a water depth sensor is arranged on the outside of the tube body, a positioning shaft is arranged at both axial ends of the tube body, the ends of the two support arms are provided with a positioning groove for installing the positioning shaft, the side wall of the positioning groove is provided with a guide groove for installing a pressure plate, the pressure plate is slidably installed in the guide groove, when the pressure plate slides along the guide groove to a first limit position, the pressure plate covers the positioning groove and limits the positioning shaft in the positioning groove, when the pressure plate slides along the guide groove to a second limit position, the pressure plate opens the positioning groove, so that the positioning shaft can move along the positioning groove and detach from the support arm;

[0008] The sampling ship is also provided with a column located on the rear side of the rotating frame, the upper end of the column is provided with a telescopic arm extending forward, the front end of the telescopic arm is provided with a supporting pulley, the upper end of the column is provided with a first steel cable winding and unwinding device, the steel cable led out of the first steel cable winding and unwinding device extends downward through the supporting pulley and is connected to the buoy platform, the buoy platform is provided with a second steel cable winding and unwinding device, the steel cable led out of the second steel cable winding and unwinding device is connected to the sampling tube picking and placing claw, and the sampling tube picking and placing claw is beyond the range of the sampling ship.

[0009] Preferably, a sampling port is respectively provided at both ends of the tube body, and a sampling valve is installed on each sampling port, and the sampling valve is a solenoid valve.

[0010] Further preferably, the sampling valve is externally sheathed with an anti-blocking filter sleeve to prevent the sampling valve from being blocked.

[0011] Further preferably, the interior of the unsampled sampling tube is evacuated in a nitrogen environment, and the gas pressure in the sampling tube is made to be 0.1 atmospheres to prevent affecting the dissolved gas content in the water.

[0012] Optionally, one end of the pressing plate away from the positioning groove is connected to the motor shaft of the linear drive motor. The motor shaft of the linear drive motor drives the pressing plate to slide back and forth along the guide groove.

[0013] Optionally, the rotating frame is rotatably arranged on the sampling ship via a rotating shaft, and the sampling ship is also provided with a first driving motor for driving the rotating shaft to rotate. The rotating frame is driven to rotate by the first driving motor.

[0014] Optionally, the first wire rope winding and unwinding device comprises a wire rope reel wound with the wire rope and a second drive motor, wherein the wire rope reel is connected to a motor shaft of the second drive motor for transmission. The second drive motor drives the wire rope reel to rotate forward or reversely, thereby realizing winding and unwinding of the wire rope.

[0015] Optionally, the second wire rope winding and unwinding device comprises a wire rope reel wound with the wire rope and a third driving motor, wherein the wire rope reel is connected to a motor shaft of the third driving motor for transmission. The third driving motor drives the wire rope reel to rotate forward or reversely, thereby realizing winding and unwinding of the wire rope.

[0016] Preferably, the sampling ship is provided with a first communication control device, and the telescopic arm, the linear drive motor, the first drive motor and the second drive motor are all electrically connected to the first communication control device. The first communication control device is connected to the main control ship via a communication network.

[0017] Further preferably, the sampling ship is provided with a camera for image acquisition and a navigation locator for positioning the sampling ship, and the camera and the navigation locator are electrically connected to the first communication control device respectively.

[0018] Preferably, a second communication control device is provided on the sampling tube, and the sampling valve is a solenoid valve, which is electrically connected to the second communication control device, and the second communication control device is connected to the first communication control device and / or the main control ship via a communication network.

[0019] Preferably, in order to reduce the disturbance of the sampling ship to the water body, before the sampling ship is about to reach the monitoring point where sampling is required, the sampling tube is started to be dropped underwater through the cooperation of the second steel cable reeling device, the first steel cable reeling device, the telescopic arm and the sampling tube taking and placing claw, and the sampling tube reaches a specific depth near the monitoring point. At the same time, the propulsion device of the sampling ship is shut down, and the sampling ship drags the sampling tube toward the monitoring point by inertia, and sampling begins when the sampling tube approaches the sampling point. In this way, before sampling, the propulsion device of the sampling ship is shut down, which can eliminate the disturbance of the sampling ship's propulsion device to the water body, making the sampling results more accurate and reliable.

[0020] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0021] When the pressure plate of the present invention slides along the guide groove to the first extreme position, the pressure plate covers the positioning groove and limits the positioning shaft in the positioning groove; when the pressure plate slides along the guide groove to the second extreme position, the pressure plate opens the positioning groove so that the positioning shaft can move along the positioning groove and detach from the support arm. This structure can facilitate the taking and placing of the sampling tube, so that the repeated taking and placing of the sampling tube will not reduce the operating efficiency.

[0022] The present invention can release different sampling tubes to different set depths by unwinding the steel cable through the first steel cable reeling and unwinding device, so that the present invention has multi-layer functions.

[0023] The present invention can realize sampling at multiple sampling points respectively, and multiple sampling tubes can be grabbed, sampled and stored in sequence. At the same time, after sampling, the sampling tubes storing water samples can be directly grabbed and recovered, reducing the difficulty of moving the sampling tubes after sampling.

[0024] The invention has a simple structure and is easy to use. It is suitable for collecting water samples at various points in the lake. It can realize remote control water sample collection without manual collection by staff, which brings convenience to on-site water sample collection. It does not require staff to take a boat to collect water samples, which can effectively reduce the labor intensity of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the installation structure of the sampling tube and the support arm;

[0027] Figure 3 This is a schematic diagram of the pressure plate installation structure;

[0028] Figure 4 This is a schematic diagram of the structure of the main control ship grabbing the sampling tube;

[0029] Figure 5 This is a schematic diagram of the workflow of the sampling vessel relying on inertial gliding during the sampling process. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1 As shown, an embodiment of the present invention provides a river water sample collection device, including a sampling boat 1, a rotating frame 2 is arranged in the sampling boat 1, and a plurality of rotating arms 3 extending radially are arranged along the circumferential direction of the rotating frame 2, each rotating arm 3 includes two oppositely arranged support arms 4, and the two support arms 4 are arranged on both sides of the rotating arm 3 along the axial direction of the rotating frame 2, and the two support arms 4 are used to support and position the sampling tube 5.

[0032] Combination Figure 2 , Figure 3 As shown, the sampling tube 5 includes a tube body 6 with an internal sample storage cavity, the tube body 6 is provided with at least one sampling port of the internal sample storage cavity, the sampling port is installed with a sampling valve 7, the outside of the tube body 6 is provided with a water depth sensor 22, the axial ends of the tube body 6 are provided with a positioning shaft 8, the ends of the two support arms 4 are provided with a positioning groove 9 for installing the positioning shaft 8, the side wall of the positioning groove 9 is provided with a guide groove 10 for installing a pressing plate 11, the pressing plate 11 is slidably installed in the guide groove 10, when the pressing plate 11 slides along the guide groove 10 to the first limit position, the pressing plate 11 covers the positioning groove 9 and limits the positioning shaft 8 in the positioning groove 9, when the pressing plate 11 slides along the guide groove 10 to the second limit position, the pressing plate 11 opens the positioning groove 9, so that the positioning shaft 8 can move along the positioning groove 9 and detach from the support arm 4;

[0033] The sampling ship 1 is also provided with a column 12 located on the rear side of the rotating frame 2, and the upper end of the column 12 is provided with a telescopic arm 13 extending forward, and the front end of the telescopic arm 13 is provided with a supporting pulley 14, and the upper end of the column 12 is provided with a first steel cable winding and unwinding device 15, and the steel cable 16 derived from the first steel cable winding and unwinding device 15 extends downward through the supporting pulley 14 and is connected to the buoy platform 23, and the buoy platform 23 is provided with a second steel cable winding and unwinding device 24, and the steel cable 25 derived from the second steel cable winding and unwinding device 24 is connected to the sampling tube picking and placing claw 17. When the telescopic arm 13 is fully extended forward, the sampling tube picking and placing claw 17 is beyond the range of the sampling ship 1.

[0034] When the sampling vessel 1 reaches the sampling point, the rotating frame 2 rotates a rotating arm 3 to the top of the rotating frame 2, and then the two pressing plates 11 on the two supporting arms 4 of the rotating arm 3 slide along the guide groove 10 to the second limit position; the telescopic arm 13 gradually extends forward from the fully retracted state, so that the sampling tube pick-up claw 17 is located directly above the sampling tube 5 on the rotating arm 3 directly above the rotating frame 2. Then the first steel cable reeling device 15 unwinds the steel cable 16, so that the sampling tube pick-up claw 17 in the open state abuts against the sampling tube 5 on the rotating arm 3 directly above the rotating frame 2, and the sampling tube pick-up claw 17 tightens and grabs the sampling tube 5, and then the first steel cable reeling device 15 rewinds the steel cable 16 so that the sampling tube 5 grabbed by the sampling tube pick-up claw 17 leaves the rotating frame 2. The telescopic arm 13 continues to extend forward, so that the sampling tube pick-up claw 17 grabbing the sampling tube 5 is out of the range of the sampling vessel 1. Afterwards, the first steel cable unwinding device 15 unwinds the steel cable 16, allowing the buoy platform 23 to float on the water surface. Then the second steel cable unwinding device 24 starts to unwind the steel cable 25. The tube picking claw that grabs the sampling tube 5 moves downward, and the water depth sensor 22 detects the water depth of the sampling tube 5. When the sampling tube 5 sinks to a specific depth, the second steel cable unwinding device 24 stops unwinding, and the sampling operation is completed by the sampling tube 5.

[0035] Afterwards, the second steel cable reeling and unwinding device 24, the first steel cable reeling and unwinding device 15, the telescopic arm 13 and the sampling tube taking and placing claw 17 cooperate to put the sampling tube 5 that has completed sampling back into the rotating frame 2, and the corresponding pressing plate 11 limits the positioning shaft 8 in the positioning groove 9. In this way, the sampling action of a sampling tube 5 is completed.

[0036] By rotating the rotating frame 2, the next sampling tube 5 to be sampled is moved to the top of the rotating frame 2. Thus, the next sampling tube 5 to be sampled can be sampled at a fixed point or at a fixed depth.

[0037] When the sampling tube 5 reaches the sampling depth, the sampling valve 7 is opened to take samples, and the sampling valve 7 is closed after the sampling is completed.

[0038] Further preferably, Figure 2As shown, a sampling port is provided at each end of the tube body 6, and a sampling valve 7 is installed on each sampling port, and the sampling valve is a solenoid valve. Therefore, when sampling, the two solenoid valves are opened at the same time, one for water sample intake and the other for emptying, which can effectively solve the problem of incomplete water intake at a single port. Further preferably, the outside of the sampling valve 7 is provided with an anti-blocking filter screen sleeve 26 to prevent the sampling valve from being blocked.

[0039] Further preferably, the unsampled sampling tube 5 is internally evacuated in a nitrogen environment, and the gas pressure in the sampling tube 5 is made to be 0.1 atmospheres to prevent affecting the dissolved gas content in the water.

[0040] After the sampling is completed, the sampling ship 1 returns to the side of the main control ship, and the rotating frame 2 rotates a rotating arm 3 to the top of the rotating frame 2, and then the two pressing plates 11 on the two supporting arms 4 of the rotating arm 3 slide along the guide groove 10 to the second limit position, and the telescopic arm 13 is converted to a fully retracted state. Figure 4 As shown, the sampling tube picking claw 21 on the main control ship can grab the sampling tube 5 on the rotating arm 3 just above the rotating frame 2 to the main control ship, thereby completing the recovery of the sampling tube 5.

[0041] Optionally, one end of the pressing plate 11 away from the positioning groove 9 is connected to the motor shaft of the linear drive motor 18. The motor shaft of the linear drive motor 18 drives the pressing plate 11 to slide back and forth along the guide groove 10.

[0042] Optionally, the rotating frame 2 is rotatably mounted on the sampling vessel 1 via a rotating shaft, and a first driving motor for driving the rotating shaft to rotate is also provided on the sampling vessel 1. The rotating frame 2 is driven to rotate by the first driving motor.

[0043] Optionally, the first cable winding and unwinding device 15 includes a cable drum wound with the cable 16 and a second drive motor, the cable drum is connected to the motor shaft of the second drive motor for transmission. The second drive motor drives the cable drum to rotate forward or reversely, thereby realizing the winding and unwinding of the cable 16.

[0044] Optionally, the second cable winding and unwinding device 24 includes a cable drum wound with the cable 25 and a third drive motor, wherein the cable drum is connected to the motor shaft of the third drive motor for transmission. The third drive motor drives the cable drum to rotate forward or reversely, thereby realizing winding and unwinding of the cable 25.

[0045] Preferably, the sampling ship 1 is provided with a first communication control device, and the telescopic arm 13, the linear drive motor 18, the first drive motor and the second drive motor are all electrically connected to the first communication control device. The first communication control device is connected to the main control ship through a communication network.

[0046] Further preferably, the sampling ship 1 is provided with a camera 19 for image acquisition and a navigation locator 20 for positioning the sampling ship 1, and the camera 19 and the navigation locator 20 are electrically connected to the first communication control device respectively.

[0047] Preferably, a second communication control device is provided on the sampling tube 5, and the sampling valve is a solenoid valve, which is electrically connected to the second communication control device, and the second communication control device is connected to the first communication control device and / or the main control ship through a communication network.

[0048] Preferably, in order to reduce the disturbance of the sampling vessel 1 to the water body, Figure 5 As shown, before the sampling ship 1 is about to reach the monitoring point where sampling is required, the sampling tube 5 is started to be dropped underwater through the cooperation of the second steel cable reel 24, the first steel cable reel 15, the telescopic arm 13 and the sampling tube pick-up and release claw 17, and the sampling tube 5 reaches a specific depth near the monitoring point. At the same time, the propulsion device of the sampling ship 1 is shut down, and the sampling ship drags the sampling tube toward the monitoring point by inertia, and sampling begins when the sampling tube 5 approaches the sampling point. In this way, before sampling, the propulsion device of the sampling ship 1 is shut down, which can eliminate the disturbance of the propulsion device of the sampling ship 1 to the water body, making the sampling result more accurate and reliable.

[0049] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The words "comprise" or "include" do not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc., does not indicate any order, and these words may be interpreted as names.

[0050] One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0051] When the pressure plate of the present invention slides along the guide groove to the first extreme position, the pressure plate covers the positioning groove and limits the positioning shaft in the positioning groove; when the pressure plate slides along the guide groove to the second extreme position, the pressure plate opens the positioning groove so that the positioning shaft can move along the positioning groove and detach from the support arm. This structure can facilitate the taking and placing of the sampling tube, so that the repeated taking and placing of the sampling tube will not reduce the operating efficiency.

[0052] The present invention can release different sampling tubes to different set depths by unwinding the steel cable through the first steel cable reeling and unwinding device, so that the present invention has multi-layer functions.

[0053] The present invention can realize sampling at multiple sampling points respectively, and multiple sampling tubes can be grabbed, sampled and stored in sequence. At the same time, after sampling, the sampling tubes storing water samples can be directly grabbed and recovered, reducing the difficulty of moving the sampling tubes after sampling.

[0054] The invention has a simple structure and is easy to use. It is suitable for collecting water samples at various points in the lake. It can realize remote control water sample collection without manual collection by staff, which brings convenience to on-site water sample collection. It does not require staff to take a boat to collect water samples, which can effectively reduce the labor intensity of staff.

[0055] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0056] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0057] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A river water sample collection device, characterized in that: The sampling vessel includes a rotating frame, a rotating frame A plurality of rotating arms extending radially are arranged along the circumferential direction, each rotating arm comprises two supporting arms arranged opposite to each other, the two supporting arms are arranged on both sides of the rotating arm along the axial direction of the rotating frame, and the two supporting arms are used to support and position the sampling tube. The sampling tube comprises a tube body with an internal sample storage cavity, the tube body is provided with at least one sampling port of the internal sample storage cavity, a sampling valve is installed on the sampling port, a water depth sensor is arranged on the outside of the tube body, a positioning shaft is arranged at both axial ends of the tube body, the ends of the two support arms are provided with a positioning groove for installing the positioning shaft, the side wall of the positioning groove is provided with a guide groove for installing a pressure plate, the pressure plate is slidably installed in the guide groove, when the pressure plate slides along the guide groove to a first limit position, the pressure plate covers the positioning groove and limits the positioning shaft in the positioning groove, when the pressure plate slides along the guide groove to a second limit position, the pressure plate opens the positioning groove, so that the positioning shaft can move along the positioning groove and detach from the support arm; The sampling ship is also provided with a column located at the rear side of the rotating frame, the upper end of the column is provided with a telescopic arm extending forward, the front end of the telescopic arm is provided with a supporting pulley, the upper end of the column is provided with a first steel cable winding and unwinding device, the steel cable led out of the first steel cable winding and unwinding device extends downward through the supporting pulley and is connected to the buoy platform, the buoy platform is provided with a second steel cable winding and unwinding device, the steel cable led out of the second steel cable winding and unwinding device is connected to the sampling tube picking and placing claw, when the telescopic arm is fully extended forward, the sampling tube picking and placing claw is beyond the range of the sampling ship.

2. A river water sample collection device as claimed in claim 1, characterized in that: One end of the pressing plate away from the positioning groove is connected to the motor shaft of the linear drive motor.

3. A river water sample collection device as claimed in claim 2, characterized in that: The rotating frame is rotatably arranged on the sampling ship via a rotating shaft, and a first driving motor for driving the rotating shaft to rotate is also arranged on the sampling ship.

4. A river water sample collection device as claimed in claim 3, characterized in that: The first steel cable retracting and unwinding device comprises a steel cable drum wound with the steel cable and a second driving motor, and the steel cable drum is connected to the motor shaft of the second driving motor for transmission.

5. A river water sample collection device as claimed in claim 4, characterized in that: The sampling ship is provided with a first communication control device, the telescopic arm, the linear drive motor, the first drive motor and the second drive motor are all electrically connected to the first communication control device, and the first communication control device is connected to the main control ship through a communication network.

6. A river water sample collection device as claimed in claim 5, characterized in that: The sampling ship is provided with a camera for image acquisition and a navigation locator for positioning the sampling ship, and the camera and the navigation locator are electrically connected to the first communication control device respectively.

7. A river water sample collection device as claimed in claim 5, characterized in that: The sampling tube is provided with a second communication control device, the sampling valve is a solenoid valve, the solenoid valve is electrically connected to the second communication control device, and the second communication control device is connected to the first communication control device and / or the main control ship through a communication network.

8. A river water sample collection device as claimed in claim 1, characterized in that: A sampling port is respectively arranged at both ends of the tube body, and a sampling valve is installed on each sampling port, and the sampling valve is a solenoid valve.

9. A river water sample collection device as claimed in claim 8, characterized in that: The sampling valve is externally sheathed with an anti-blocking filter screen sleeve.

10. A river water sample collection device as claimed in claim 1, characterized in that: When the sampling ship is about to reach the monitoring point where sampling is required, the sampling tube is lowered underwater through the cooperation of the second steel cable reeling and unwinding device, the first steel cable reeling and unwinding device, the telescopic arm and the sampling tube picking and placing claws. The sampling tube reaches a specific depth near the monitoring point. At the same time, the propulsion device of the sampling ship is stopped, and the sampling ship drags the sampling tube toward the monitoring point by inertia. Sampling begins when the sampling tube approaches the sampling point.

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