Water taking device for water quality detection

Abstract

The invention belongs to the technical field of water quality detection, and discloses a water taking device for water quality detection, which comprises a rack, the front end and the rear end of the rack are fixedly provided with extension lug plates, the position, close to the right side, of the rack is fixedly sleeved with a water taking assembly, and the left side of the rack is fixedly provided with a bottom guide rail; a movable frame is arranged at the top end of the bottom guide rail, a guide block is fixedly installed in the middle of the bottom end of the movable frame, and the movable frame is movably connected with the bottom guide rail in a clamped mode through the guide block. Through cooperation of the sampling pipes and the water taking assembly, the sampling pipes can be automatically switched after sampling at a single position is finished, that is, the sampling pipes which are not sampled correspond to the water taking assembly, the corresponding sampling process is carried out, continuous water flow sampling at different positions is achieved, and the sampling efficiency is improved. The device does not need to be taken out frequently for water flow transfer, so that the intermediate waiting time is remarkably shortened, and the overall sampling efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water quality detection, and in particular relates to a water intake device for water quality detection. Background Art

[0002] Water quality testing is to analyze and evaluate the pollutants, microorganisms, minerals and other indicators in the water body through physical, chemical, biological and other methods to determine whether the water quality meets the standards for specific purposes (such as drinking, irrigation, and industry). Its core purpose is to ensure the safety of water resources, prevent water pollution, and support environmental protection and sustainable development. During the water quality testing process, a dedicated water intake device must be used for water intake operations.

[0003] Conventional water sampling devices are mainly composed of water sampling components. When sampling water, the water inlet end of the water sampling component is placed in the target water area, and the water sample is absorbed by the rise of the piston plate. After the absorption is completed, the water sample is sent to the inside of the sampling tube to complete the storage process. When sampling water flows in different areas, this water sampling method requires frequent taking out of the device and sending the water sample into the inside of the sampling tube. It is impossible to achieve a continuous sampling process of multiple water samples, and the sampling efficiency is low.

[0004] Moreover, during the transportation of water samples, the water collection end may be contaminated with a certain amount of sludge, resulting in a certain amount of contamination during the transportation of water samples. At the same time, when the water samples are stored in the sampling tube, the sampling tube needs to be frequently docked with the water collection component. The entire docking process is relatively cumbersome and may cause leakage, which urgently needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a water intake device for water quality detection to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water intake device for water quality detection, comprising a frame, wherein the front and rear ends of the frame are fixedly installed with extended ear plates, a water intake assembly is fixedly sleeved at a position close to the right side of the frame, a bottom guide rail is fixedly installed at the left side of the frame, a movable frame is provided at the top of the bottom guide rail, a guide block is fixedly installed at the middle of the bottom end of the movable frame, the movable frame is movably connected with the bottom guide rail through the guide block, the movable frame is displaced left and right relative to the bottom guide rail, a bottom plate is provided at a position close to the right side of the movable frame, mounting grooves are equidistantly provided at the top of the bottom plate, sampling tubes are movably clamped inside the mounting grooves, one end of the sampling tube close to the water intake assembly is fixedly connected with an auxiliary sealing assembly, one end of the water intake assembly close to the auxiliary sealing assembly is fixedly connected with an extended rubber tube, the left and right ends of the left side of the movable frame are fixedly installed with auxiliary docking assemblies, the other end of the auxiliary docking assembly is connected to the top of the water intake assembly, and when the sampling tube is located at the rightmost side, the auxiliary sealing assembly and the extended rubber tube are movably sleeved.

[0007] Before use, the device can be fixed to the boat or the external telescopic rod by extending the ear plate, and the device can be placed at different water depths through the external telescopic rod to complete the sampling process of water bodies at different depths. At the same time, during the sampling process, the device needs to be powered by an external power supply, and no water samples are stored inside the water collection assembly and the sampling tube before water collection, thereby completing the preparation before water collection.

[0008] As a further technical solution of the present invention, the water intake assembly includes a water intake pipe, the bottom end of the water intake pipe is fixedly connected to a water inlet valve, the outer side surface of the water inlet valve is fixedly socketed with the frame, the left side of the water intake pipe near the bottom end is fixedly connected to a drain valve, and the drain valve is connected to an extended rubber tube.

[0009] As a further technical solution of the present invention, the water inlet valve and the drain valve are both one-way valves, and the directions of the valves are respectively inward conduction and outward blockage, and outward conduction and inward blockage. A filter is installed at the bottom end of the water intake pipe by bolts.

[0010] As a further technical solution of the present invention, the water intake pipe is internally movably sleeved with a piston plate, the top of the piston plate is fixedly connected to a piston rod, the top of the piston rod passes through the top of the water intake pipe and is fixedly connected to a linkage seat, and the left side of the linkage seat is connected to the auxiliary docking assembly.

[0011] As a further technical solution of the present invention, a fixing hoop is fixedly sleeved on the outer side of the water intake pipe near the bottom end, a first electric push rod is fixedly installed on one side of the top end of the fixing hoop, an output end of the first electric push rod is connected to one side of the bottom end of the linkage seat, and a clearing rod adapted to the filter holes of the filter is fixedly installed on the bottom end of the piston plate.

[0012] When taking water samples, that is, the linkage seat is at the lowest point in the initial state, when the bottom end of the water inlet valve extends into the water body at the specified position, the first electric push rod can be opened and controlled to extend, and the piston plate will move upward accordingly, and negative pressure will be generated inside the water intake pipe. At this time, the water flow can be sucked into the water intake pipe through the water inlet valve for temporary storage, and the water flow can be filtered through the filter until the auxiliary sealing component and the extended rubber tube are connected. At this time, the first electric push rod can be controlled to shorten, and the linkage seat will move downward accordingly, and drive the piston plate to move downward, and pressure can be generated inside the water intake pipe, and the water flow can be discharged through the drain valve, and enter the interior of the auxiliary sealing component through the extended rubber tube; At the same time, when the piston plate moves down to the lowest point, the dredging rod also moves down to the lowest point, and the dredging rod is inserted into the interior of the filter to clean the interior of the filter, completing the active cleaning process.

[0013] By utilizing the filtering of the filter, the coordination of the water inlet valve and the drain valve, and the coordination between the water intake assembly and the auxiliary sealing assembly, the device can automatically filter the water flow when taking water, and export the filtered water flow through different channels to ensure the cleanliness of the exported water flow, avoid contamination of water samples during transportation due to sludge contamination of the water, and significantly improve the cleanliness of the sampling, thereby improving the detection effect.

[0014] As a further technical solution of the present invention, an adjustment guide rail is fixedly installed on one side of the movable frame close to the base plate, an adjustment block is fixedly installed in the middle of the left side of the base plate, the base plate is movably connected to the adjustment guide rail through the adjustment block, the base plate is displaced forward and backward relative to the movable frame, adjustment blocks are installed on both sides of the inner cavity of the movable frame, and one end of the second electric push rod is connected to the adjustment block.

[0015] When the extended rubber tube is docked with the designated auxiliary sealing component, the water flow derived from the water intake component can enter the interior of the sampling tube through the extended rubber tube to complete the storage. After the storage of the water sample at one position is completed, the automatic resetting of the water intake component and the auxiliary docking component can realize the automatic resetting of the movable frame position. At this time, the second electric push rod located on one side of the inner side of the adjustment guide rail can be opened, and the bottom plate can be pushed forward and backward by the second electric push rod, and the sampling tube that is not loaded with water samples can be pushed to one side until the sampling tube and the extended rubber tube correspond to each other, and the adjustment process can be completed. At this time, the device can be lowered to the specified height to continue the water flow sampling process at another position, completing the continuous sampling process.

[0016] By utilizing the coordination between the movable frame and the base plate, as well as the coordination between the sampling tube and the water collection component, the sampling tube can be automatically switched after sampling at a single position is completed, that is, the unsampled sampling tube is matched with the water collection component, and the corresponding sampling process is performed, thereby achieving continuous sampling of water flow at different positions. There is no need to frequently take out the device and transfer the water flow, which significantly shortens the waiting time in the middle and improves the overall sampling efficiency.

[0017] As a further technical solution of the present invention, the auxiliary docking assembly includes an extension rod, one side of the extension rod is connected to the movable frame, and the top of the extension rod is fixedly installed with a first fixed seat. The auxiliary docking assembly also includes a second fixed seat, which is connected to one end on the left side of the linkage seat, and a connecting rod is movably connected between the first fixed seat and the second fixed seat.

[0018] When the linkage seat moves upward, it can drive the second fixed seat to move upward. At this time, the connecting rod is deflected obliquely upward and applies tension to the extension rod. At this time, under the pulling of the two extension rods, the movable frame moves relative to the bottom guide rail, that is, moves toward the position of the water intake component. At this time, the bottom plate moves to the right, and the distance between the top sampling tube and the water intake component decreases. When the linkage seat moves downward, the second fixed seat moves downward, and finally drives the movable frame to move away from the water intake component, and the distance between the sampling tube and the water intake component increases.

[0019] As a further technical solution of the present invention, the auxiliary sealing assembly includes a water pipe, which is fixedly connected to the sampling tube at the right position near the bottom end, and a docking pipe is fixedly connected to the right side of the water pipe. The inner diameter of the water pipe is the same as the outer diameter of the extended rubber tube, and the inner diameter of the docking pipe is smaller than the inner diameter of the water pipe.

[0020] As a further technical solution of the present invention, a fixing part is fixedly installed on one side of the inner cavity of the water pipe close to the sampling tube, a telescopic rod is fixedly installed on one side of the fixing part close to the docking tube, and a sealing plate is fixedly installed on one end of the telescopic rod away from the fixing part.

[0021] As a further technical solution of the present invention, when the telescopic rod is in the initial state, the sealing plate completely seals one side of the docking tube; when the telescopic rod is in the compressed state, the sealing plate does not seal one side of the docking tube and the sealing plate is located inside the water pipe.

[0022] When the movable frame moves toward the water intake component, the sampling tube and the auxiliary sealing component can be synchronously driven to move toward the water intake component until the butt joint and the extended rubber tube are movably connected. At this time, the extended rubber tube enters the interior of the butt joint and applies pressure to the sealing plate. At this time, the telescopic rod is compressed and drives the sealing plate to move to the interior of the water pipe. At this time, the docking process of the auxiliary sealing component and the sampling tube can be completed. When the movable frame moves in the direction away from the water intake component, the sealing plate can be gradually moved to the side close to the butt joint. At this time, the water flow can enter the interior of the sampling tube through the butt joint and the water pipe until the sealing plate completely seals the butt joint, completing the water injection process. At this time, the sampling tube and the extended rubber tube can automatically release the docking process, waiting for water flow sampling at the next position.

[0023] By utilizing the cooperation between the sampling tube and the auxiliary sealing component and the water intake component, as well as the cooperation between the auxiliary docking component and the water intake component, the sampling tube and the water intake component can be docked simultaneously when the water intake component is extracting water. At the same time, the docking between the sampling tube and the water intake component can be gradually released when the water flow is discharged. When the injection of all water flows is completed, the docking can be completely released. The whole process is completed automatically, which can avoid the complicated docking process of traditional devices, reduce leakage, and further improve the sampling efficiency.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention utilizes the coordination between the movable frame and the bottom plate, and the coordination between the sampling tube and the water collection component, so that the sampling tube can be automatically switched after the sampling of a single position is completed, that is, the sampling tube that has not been sampled is matched with the water collection component, and the corresponding sampling process is performed, so as to realize the continuity of water flow sampling at different positions, without the need to frequently take out the device and transfer the water flow, which significantly shortens the waiting time in the middle and improves the overall sampling efficiency.

[0025] (2) The present invention utilizes the cooperation between the sampling tube and the auxiliary sealing component and the water intake component, as well as the cooperation between the auxiliary docking component and the water intake component, so that when the water intake component is extracting water, the sampling tube and the water intake component can be docked simultaneously. At the same time, when the water flow is being discharged, the docking between the sampling tube and the water intake component can be gradually released until the injection of all the water flow is completed. The entire process is completed automatically, which can avoid the complicated docking process of traditional devices, reduce leakage, and further improve the sampling efficiency.

[0026] (3) The present invention utilizes the filtration of the filter screen, the coordination of the water inlet valve and the water outlet valve, and the coordination between the water intake assembly and the auxiliary sealing assembly to achieve the device being able to automatically filter the water flow when taking water, and to guide the filtered water flow out through different channels, thereby ensuring the cleanliness of the guided water flow and avoiding contamination of the water sample during transportation due to sludge contamination of the taken water. This can significantly improve the cleanliness of the sampling and thereby improve the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a separate schematic diagram of the water intake assembly structure of the present invention; Figure 3 It is a cross-sectional schematic diagram of the internal structure of the water intake assembly of the present invention; Figure 4 It is an exploded schematic diagram of the bottom guide rail and the movable frame structure of the present invention; Figure 5 A cross-sectional schematic diagram of the internal structure of the adjusting guide rail of the present invention; Figure 6 It is a separate schematic diagram of the auxiliary docking assembly structure of the present invention; Figure 7 It is a schematic diagram of the matching structure of the sampling tube and the auxiliary sealing assembly of the present invention; Figure 8 It is a separate cross-sectional schematic diagram of the internal structure of the sampling tube and the auxiliary sealing assembly of the present invention.

[0028] In the figure: 1, frame; 2, extension ear plate; 3, bottom guide rail; 4, water intake assembly; 401, water intake pipe; 402, water inlet valve; 403, drain valve; 404, filter screen; 405, piston plate; 406, piston rod; 407, dredging rod; 408, linkage seat; 409, fixing hoop; 4010, first electric push rod; 5, bottom plate; 6, movable frame; 7, adjustment rail; 8, adjustment block; 9, second electric push rod; 10, mounting groove; 11, guide block; 12, auxiliary docking assembly; 121, extension rod; 122, first fixed seat; 123, second fixed seat; 124, connecting rod; 13, extension rubber tube; 14, sampling tube; 15, auxiliary sealing assembly; 151, docking tube; 152, water pipe; 153, fixing piece; 154, telescopic rod; 155, sealing plate. DETAILED DESCRIPTION

[0029] 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.

[0030] like Figures 1 to 8 As shown, in an embodiment of the present invention, a water intake device for water quality detection includes a frame 1, and the front and rear ends of the frame 1 are fixedly installed with extended ear plates 2. The frame 1 is fixedly sleeved with a water intake component 4 near the right side, and the left side of the frame 1 is fixedly installed with a bottom guide rail 3. The top of the bottom guide rail 3 is provided with a movable frame 6, and the middle part of the bottom end of the movable frame 6 is fixedly installed with a guide block 11. The movable frame 6 is movably connected with the bottom guide rail 3 through the guide block 11. The movable frame 6 is displaced left and right relative to the bottom guide rail 3. The movable frame 6 is provided with a bottom plate 5 near the right side. The top of the plate 5 is provided with mounting grooves 10 at equal intervals, and sampling tubes 14 are movably connected inside the mounting grooves 10. The end of the sampling tube 14 close to the water intake component 4 is fixedly connected to an auxiliary sealing component 15, and the end of the water intake component 4 close to the auxiliary sealing component 15 is fixedly connected to an extended rubber tube 13. Auxiliary docking components 12 are fixedly installed on both ends of the left side of the movable frame 6, and the other end of the auxiliary docking component 12 is connected to the top of the water intake component 4. When the sampling tube 14 is located at the far right, the auxiliary sealing component 15 and the extended rubber tube 13 are movably connected.

[0031] Before use, the device can be fixed to the vessel or the external telescopic rod by extending the ear plate 2, and the device can be placed at different water depths through the external telescopic rod to complete the sampling process of water bodies at different depths. At the same time, during the sampling process, the device needs to be powered by an external power supply, and before water sampling, no water samples are stored inside the water sampling component 4 and the sampling tube 14, thereby completing the preparation before water sampling.

[0032] like Figure 1 and Figure 2 as well as Figure 3As shown, the water intake assembly 4 includes a water intake pipe 401, the bottom end of the water intake pipe 401 is fixedly connected with a water inlet valve 402, the outer side of the water inlet valve 402 is fixedly sleeved with the frame 1, the left side of the water intake pipe 401 near the bottom is fixedly connected with a drain valve 403, the drain valve 403 is connected with the extended rubber tube 13, the water inlet valve 402 and the drain valve 403 are both one-way valves, and the directions of the valves are respectively inward conduction and outward cut-off, and outward conduction and inward cut-off, the bottom end of the water intake pipe 401 is installed with a filter screen 404 by bolts, and the inside of the water intake pipe 401 is movably sleeved with a piston plate 40 5. The top of the piston plate 405 is fixedly connected with a piston rod 406, the top of the piston rod 406 passes through the top of the water intake pipe 401 and is fixedly connected with a linkage seat 408, the left side of the linkage seat 408 is connected with the auxiliary docking component 12, a fixing hoop 409 is fixedly sleeved on the outer side of the water intake pipe 401 near the bottom, a first electric push rod 4010 is fixedly installed on one side of the top of the fixing hoop 409, the output end of the first electric push rod 4010 is connected to one side of the bottom end of the linkage seat 408, and a dredging rod 407 adapted to the filter hole of the filter screen 404 is fixedly installed at the bottom end of the piston plate 405.

[0033] When taking water samples, that is, in the initial state, the linkage seat 408 is at the lowest point. When the bottom end of the water inlet valve 402 extends into the water body at the specified position, the first electric push rod 4010 can be opened and controlled to extend. At this time, the piston plate 405 moves upward and generates negative pressure inside the water intake pipe 401. At this time, the water flow can be sucked into the water intake pipe 401 through the water inlet valve 402 for temporary storage. At the same time, the water flow can be filtered through the filter screen 404 until the auxiliary sealing component 15 and the extended rubber tube 13 are connected. At this time, the first electric push rod 4010 can be controlled to shorten. At this time, the linkage seat 408 moves downward and drives the piston plate 405 to move downward. At this time, pressure can be generated inside the water intake pipe 401, and the water flow is discharged through the drain valve 403, and is transported into the auxiliary sealing component 15 through the extended rubber tube 13; At the same time, when the piston plate 405 moves down to the lowest point, the dredging rod 407 also moves down to the lowest point, and the dredging rod 407 is inserted into the interior of the filter 404 to clean the interior of the filter 404, completing the active cleaning process.

[0034] By utilizing the filtering of the filter screen 404, and the coordination of the water inlet valve 402 and the drain valve 403, and the coordination between the water intake component 4 and the auxiliary sealing component 15, the device can automatically filter the water flow when taking water, and export the filtered water flow through different channels to ensure the cleanliness of the exported water flow, avoid contamination of water samples during transportation due to sludge contamination of the water, and significantly improve the cleanliness of the sampling, thereby improving the detection effect.

[0035] like Figure 1 and Figure 4 as well as Figure 5 As shown, an adjusting guide rail 7 is fixedly installed on one side of the movable frame 6 close to the bottom plate 5, and an adjusting clamp block 8 is fixedly installed in the middle of the left side of the bottom plate 5. The bottom plate 5 is movably connected with the adjusting guide rail 7 through the adjusting clamp block 8. The bottom plate 5 is displaced forward and backward relative to the movable frame 6. Adjusting clamp blocks 8 are installed on both sides of the inner cavity of the movable frame 6, and one end of the second electric push rod 9 is connected to the adjusting clamp block 8.

[0036] Embodiment: After the extended rubber tube 13 is docked with the designated auxiliary sealing component 15, the water flow derived from the water intake component 4 can enter the interior of the sampling tube 14 through the extended rubber tube 13 to complete storage. After the storage of the water sample at one position is completed, due to the automatic resetting of the water intake component 4, the automatic resetting of the position of the movable frame 6 can be achieved in cooperation with the auxiliary docking component 12. At this time, the second electric push rod 9 located on one side of the inner side of the adjustment guide rail 7 can be opened, and the bottom plate 5 can be pushed forward and backward by the second electric push rod 9, and the sampling tube 14 that is not loaded with water samples can be pushed to one side until the sampling tube 14 and the extended rubber tube 13 correspond to each other, and the adjustment process can be completed. At this time, the device can be lowered to the specified height to continue the water flow sampling process at another position, completing the continuous sampling process.

[0037] By utilizing the coordination between the movable frame 6 and the bottom plate 5, and the coordination between the sampling tube 14 and the water collection component 4, the sampling tube 14 can be automatically switched after the sampling at a single position is completed, that is, the sampling tube 14 that has not been sampled is matched with the water collection component 4, and the corresponding sampling process is performed, thereby realizing the continuity of water flow sampling at different positions, without the need to frequently take out the device and transfer the water flow, significantly shortening the waiting time in the middle and improving the overall sampling efficiency.

[0038] like Figure 1 and Figure 6 As shown, the auxiliary docking assembly 12 includes an extension rod 121, one side of the extension rod 121 is connected to the movable frame 6, and the top of the extension rod 121 is fixedly installed with a first fixed seat 122. The auxiliary docking assembly 12 also includes a second fixed seat 123, and the second fixed seat 123 is connected to one end on the left side of the linkage seat 408. A connecting rod 124 is movably connected between the first fixed seat 122 and the second fixed seat 123.

[0039] When the linkage seat 408 moves upward, it can drive the second fixed seat 123 to move upward. At this time, the connecting rod 124 deflects obliquely upward and applies tension to the extension rod 121. At this time, under the pulling of the two extension rods 121, the movable frame 6 moves relative to the bottom guide rail 3, that is, moves toward the position of the water intake component 4. At this time, the bottom plate 5 moves to the right, and the distance between the top sampling tube 14 and the water intake component 4 decreases. When the linkage seat 408 moves downward, the second fixed seat 123 moves downward, and finally drives the movable frame 6 to move away from the water intake component 4, and the distance between the sampling tube 14 and the water intake component 4 increases.

[0040] like Figure 1 and Figure 7 as well as Figure 8 As shown, the auxiliary sealing assembly 15 includes a water pipe 152, which is fixedly connected to the right side of the sampling tube 14 near the bottom end, and a butt joint 151 is fixedly connected to the right side of the water pipe 152. The inner diameter of the water pipe 152 is the same as the outer diameter of the extended rubber tube 13, and the inner diameter of the butt joint 151 is smaller than the inner diameter of the water pipe 152. A fixing member 153 is fixedly installed on the side of the inner cavity of the water pipe 152 near the sampling tube 14, and a telescopic rod 154 is fixedly installed on the side of the fixing member 153 near the butt joint 151. A sealing plate 155 is fixedly installed on the end of the telescopic rod 154 away from the fixing member 153. When the telescopic rod 154 is in the initial state, the sealing plate 155 completely seals one side of the butt joint 151. When the telescopic rod 154 is in the compressed state, the sealing plate 155 does not seal one side of the butt joint 151 and the sealing plate 155 is located inside the water pipe 152.

[0041] Embodiment: When the movable frame 6 is displaced toward the water intake component 4, the sampling tube 14 and the auxiliary sealing component 15 can be synchronously driven to move toward the water intake component 4 until the butt joint 151 and the extended rubber tube 13 are movably connected. At this time, the extended rubber tube 13 enters the interior of the butt joint 151 and applies pressure to the sealing plate 155. At this time, the telescopic rod 154 is compressed and drives the sealing plate 155 to move to the interior of the water pipe 152. At this time, the butt joint process between the auxiliary sealing component 15 and the sampling tube 14 can be completed. When the movable frame 6 is displaced in the direction away from the water intake component 4, the sealing plate 155 can be gradually displaced to the side close to the butt joint 151. At this time, the water flow can enter the interior of the sampling tube 14 through the butt joint 151 and the water pipe 152 until the sealing plate 155 completely seals the butt joint 151, completing the water injection process. At this time, the sampling tube 14 and the extended rubber tube 13 can automatically release the butt joint process, waiting for water flow sampling at the next position.

[0042] By utilizing the cooperation between the sampling tube 14 and the auxiliary sealing component 15 and the water intake component 4, as well as the cooperation between the auxiliary docking component 12 and the water intake component 4, the sampling tube 14 and the water intake component 4 can be docked simultaneously when the water intake component 4 is extracting water. At the same time, when the water flow is being discharged, the docking between the sampling tube 14 and the water intake component 4 can be gradually released until the injection of all water flows is completed. The entire process is completed automatically, which can avoid the complicated docking process of traditional devices, reduce leakage, and further improve the sampling efficiency.

[0043] Working principle and usage process: Before use, the device can be fixed to the vessel or the external telescopic rod by extending the ear plate 2, and the device can be placed at different water depths by the external telescopic rod to complete the sampling process of water bodies at different depths. At the same time, during the sampling process, the device needs to be powered by an external power supply, and no water sample is stored in the water collection component 4 and the sampling tube 14 before water collection, so as to complete the preparation before water collection; When taking water samples, that is, in the initial state, the linkage seat 408 is at the lowest point. When the bottom end of the water inlet valve 402 extends into the water body at the specified position, the first electric push rod 4010 can be opened and controlled to extend. At this time, the piston plate 405 moves upward and generates negative pressure inside the water intake pipe 401. At this time, the water flow can be sucked into the water intake pipe 401 through the water inlet valve 402 for temporary storage. At the same time, the water flow can be filtered through the filter screen 404 until the auxiliary sealing component 15 and the extended rubber tube 13 are connected. At this time, the first electric push rod 4010 can be controlled to shorten. At this time, the linkage seat 408 moves downward and drives the piston plate 405 to move downward. At this time, pressure can be generated inside the water intake pipe 401, and the water flow is discharged through the drain valve 403, and is transported into the auxiliary sealing component 15 through the extended rubber tube 13; At the same time, when the piston plate 405 moves down to the lowest point, the dredging rod 407 also moves down to the lowest point, and the dredging rod 407 is inserted into the interior of the filter screen 404 to clean the interior of the filter screen 404, completing the active cleaning process; When the linkage seat 408 moves upward, the second fixed seat 123 can be driven to move upward. At this time, the connecting rod 124 is deflected obliquely upward and exerts a pulling force on the extension rod 121. At this time, under the pulling of the two extension rods 121, the movable frame 6 is displaced relative to the bottom guide rail 3, that is, it is displaced toward the position of the water intake component 4. At this time, the bottom plate 5 is displaced to the right side, and the distance between the top sampling tube 14 and the water intake component 4 is reduced. When the linkage seat 408 moves downward, the second fixed seat 123 moves downward, and finally drives the movable frame 6 to move away from the water intake component 4, and the distance between the sampling tube 14 and the water intake component 4 is increased. When the movable frame 6 is displaced toward the water intake component 4, the sampling tube 14 and the auxiliary sealing component 15 can be synchronously driven to move toward the direction close to the water intake component 4 until the butt joint 151 and the extended rubber tube 13 are movably connected. At this time, the extended rubber tube 13 enters the interior of the butt joint 151 and applies pressure to the sealing plate 155. At this time, the telescopic rod 154 is compressed and drives the sealing plate 155 to move to the interior of the water pipe 152. At this time, the butt joint process between the auxiliary sealing component 15 and the sampling tube 14 can be completed. When the movable frame 6 is displaced in the direction away from the water intake component 4, the sealing plate 155 can be gradually displaced to the side close to the butt joint 151. At this time, the water flow can enter the interior of the sampling tube 14 through the butt joint 151 and the water pipe 152 until the sealing plate 155 completely seals the butt joint 151, completing the water injection process. At this time, the sampling tube 14 and the extended rubber tube 13 can automatically release the butt joint process, waiting for water flow sampling at the next position; When the extended rubber tube 13 is docked with the designated auxiliary sealing component 15, the water flow derived from the water intake component 4 can enter the interior of the sampling tube 14 through the extended rubber tube 13 to complete storage. After the storage of the water sample at one position is completed, due to the automatic resetting of the water intake component 4, the automatic resetting of the position of the movable frame 6 can be achieved in cooperation with the auxiliary docking component 12. At this time, the second electric push rod 9 located on one side of the inner side of the adjustment guide rail 7 can be opened, and the bottom plate 5 can be pushed forward and backward by the second electric push rod 9, and the sampling tube 14 without water sample is pushed to one side until the sampling tube 14 and the extended rubber tube 13 correspond to each other, and the adjustment process is completed. At this time, the device can be lowered to the specified height to continue the water flow sampling process at another position, completing the continuous sampling process.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water intake device for water quality detection, comprising a frame (1), characterized in that: The front and rear ends of the frame (1) are both fixedly mounted with extended ear plates (2); a water intake assembly (4) is fixedly sleeved at a position close to the right side of the frame (1); a bottom guide rail (3) is fixedly mounted at the left side of the frame (1); a movable frame (6) is provided at the top end of the bottom guide rail (3); a guide block (11) is fixedly mounted at the middle of the bottom end of the movable frame (6); the movable frame (6) is movably connected to the bottom guide rail (3) through the guide block (11); the movable frame (6) is displaced left and right relative to the bottom guide rail (3); a bottom plate (5) is provided at a position close to the right side of the movable frame (6); and the top end of the bottom plate (5) is provided with two equidistantly spaced openings. A mounting groove (10) is provided, wherein a sampling tube (14) is movably connected inside the mounting groove (10), and one end of the sampling tube (14) close to the water intake component (4) is fixedly connected to an auxiliary sealing component (15), and one end of the water intake component (4) close to the auxiliary sealing component (15) is fixedly connected to an extended rubber tube (13), and the left and right ends of the left side of the movable frame (6) are fixedly installed with auxiliary docking components (12), and the other end of the auxiliary docking component (12) is connected to the top end of the water intake component (4), and when the sampling tube (14) is located at the rightmost side, the auxiliary sealing component (15) and the extended rubber tube (13) are movably connected.

2. A water intake device for water quality detection according to claim 1, characterized in that: The water intake assembly (4) comprises a water intake pipe (401), the bottom end of the water intake pipe (401) is fixedly connected to a water inlet valve (402), the outer side surface of the water inlet valve (402) is fixedly sleeved with the frame (1), and the left side of the water intake pipe (401) near the bottom end is fixedly connected to a drain valve (403), and the drain valve (403) is connected to the extended rubber tube (13).

3. A water intake device for water quality detection according to claim 2, characterized in that: The water inlet valve (402) and the drain valve (403) are both one-way valves, and the directions of the valves are respectively inwardly conducting and outwardly blocking, and outwardly conducting and inwardly blocking. A filter screen (404) is installed at the bottom end of the water intake pipe (401) via bolts.

4. A water intake device for water quality detection according to claim 3, characterized in that: The water intake pipe (401) is internally movably sleeved with a piston plate (405), the top end of the piston plate (405) is fixedly connected to a piston rod (406), the top end of the piston rod (406) penetrates the top end of the water intake pipe (401) and is fixedly connected to a linkage seat (408), and the left side of the linkage seat (408) is connected to the auxiliary docking assembly (12).

5. A water intake device for water quality detection according to claim 4, characterized in that: A fixing hoop (409) is fixedly sleeved on a position near the bottom end of the outer side surface of the water intake pipe (401), a first electric push rod (4010) is fixedly mounted on one side of the top end of the fixing hoop (409), an output end of the first electric push rod (4010) is connected to one side of the bottom end of the linkage seat (408), and a clearing rod (407) adapted to the filter holes of the filter screen (404) is fixedly mounted on the bottom end of the piston plate (405).

6. A water intake device for water quality detection according to claim 5, characterized in that: An adjustment guide rail (7) is fixedly mounted on one side of the movable frame (6) close to the bottom plate (5); an adjustment clamping block (8) is fixedly mounted in the middle of the left side of the bottom plate (5); the bottom plate (5) is movably clamped with the adjustment guide rail (7) through the adjustment clamping block (8); the bottom plate (5) moves forward and backward relative to the movable frame (6); adjustment clamping blocks (8) are mounted on both left and right sides of the inner cavity of the movable frame (6); and one end of the second electric push rod (9) is connected to the adjustment clamping block (8).

7. A water intake device for water quality detection according to claim 6, characterized in that: The auxiliary docking assembly (12) comprises an extension rod (121), one side of the extension rod (121) is connected to the movable frame (6), a first fixing seat (122) is fixedly mounted on the top of the extension rod (121), the auxiliary docking assembly (12) further comprises a second fixing seat (123), the second fixing seat (123) is connected to one end on the left side of the linkage seat (408), and a connecting rod (124) is movably connected between the first fixing seat (122) and the second fixing seat (123).

8. A water intake device for water quality testing according to claim 7, characterized in that: The auxiliary sealing assembly (15) comprises a water pipe (152), the water pipe (152) being fixedly connected to the sampling tube (14) at a right position close to the bottom end, the right side of the water pipe (152) being fixedly connected to a butt joint pipe (151), the inner diameter of the water pipe (152) being the same as the outer diameter of the extended rubber tube (13), and the inner diameter of the butt joint pipe (151) being smaller than the inner diameter of the water pipe (152).

9. A water intake device for water quality detection according to claim 8, characterized in that: A fixing piece (153) is fixedly mounted on a side of the inner cavity of the water delivery pipe (152) close to the sampling pipe (14), a telescopic rod (154) is fixedly mounted on a side of the fixing piece (153) close to the butt joint pipe (151), and a sealing plate (155) is fixedly mounted on an end of the telescopic rod (154) away from the fixing piece (153).

10. A water intake device for water quality detection according to claim 9, characterized in that: When the telescopic rod (154) is in an initial state, the sealing plate (155) completely seals one side of the butt joint pipe (151); when the telescopic rod (154) is in a compressed state, the sealing plate (155) does not seal one side of the butt joint pipe (151) and the sealing plate (155) is located inside the water pipe (152).

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