Water conservancy and hydrology monitoring device and method

Abstract

The invention discloses a water conservancy and hydrology monitoring device and method, and belongs to the technical field of water conservancy and hydrology monitoring. The water conservancy and hydrology monitoring device comprises a monitoring ship and a winding mechanism, a fixing frame is installed on the winding mechanism, a depth meter and a wireless control module are installed on the fixing frame, a sampling barrel is clamped in the fixing frame, and a cable is fixedly connected to the top of the fixing frame; by arranging the sampling mechanism, after the sampling barrel stretches into water, sampling operation can be automatically completed without complex operation of an operator, and due to the fact that the depth meter and the wireless control module are installed on the fixing frame, a user can clearly know the depth where the sampling barrel is located; after the depth is determined, a user can control the sampling barrel to automatically complete sampling operation through the wireless control module on a monitoring ship, after sampling of the sampling barrel is finished, water samples can be automatically sealed and stored, and the user can detach the sampling barrel to carry and transport by himself / herself so as to facilitate subsequent detection and use.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydrology monitoring, and in particular relates to a water conservancy and hydrology monitoring device and method. Background Art

[0002] Water conservancy and hydrological monitoring devices are equipment used to monitor the hydrological characteristics of water bodies such as rivers, lakes, and reservoirs. They can timely respond to the hydrological conditions of each water body so that relevant departments can make corresponding arrangements to prevent the occurrence of flood disasters. For the detection of large water bodies such as rivers and lakes, staff need to drive a small ship to a specific water body, and then use a sampling device to sample deep water, and then send the sampled water to a monitoring agency for detection and processing. However, for deep water bodies, due to the large depth, when operating the sampling device to extract water samples, it is more laborious due to the influence of the depth, and generally the samples taken need to be separately filled into special containers for sealed transportation. In this way, the efficiency of sampling is reduced during the back and forth turnover of water samples, and the originality of the water quality is easily destroyed. Therefore, the present invention provides a water conservancy and hydrological monitoring device and method to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a water conservancy and hydrological monitoring device and method. By setting up a sampling mechanism, when the sampling tube is inserted into the water, the sampling operation can be automatically completed without the operator performing complicated operations. When the depth is determined, the user only needs to control the sampling tube through a wireless control module on the monitoring ship to automatically complete the sampling operation. When the sampling tube finishes sampling, the water sample will be automatically sealed and preserved. The user can disassemble it by himself for carrying and transportation, so as to facilitate subsequent detection and use, which solves the problem of low efficiency of deep water sampling by current hydrological monitoring devices.

[0004] The present invention solves the above technical problems through the following technical solutions. The present invention includes a monitoring ship and a winding mechanism, a fixing frame is installed on the winding mechanism, a depth gauge and a wireless control module are installed on the fixing frame, a sampling tube is clamped in the fixing frame, a cable is fixedly connected to the top of the fixing frame, and the winding mechanism is used to wind up the cable on the top of the fixing frame; a sampling mechanism, the sampling mechanism is used to assist operators in sampling, and the sampling mechanism is respectively connected to the sampling tube and the fixing frame; the sampling mechanism includes a base, a pull rod, a piston, an upper fixed seat and a lower fixed seat, the upper fixed seat and the lower fixed seat are respectively fixedly connected to the top and bottom of the fixing frame, the base is screwed to the bottom of the sampling tube, the pull rod is inserted in the base, and the piston is fixedly connected to one end of the pull rod.

[0005] Optionally, the bottom and top of the fixing frame are provided with a curved structure protruding outward, a lightweight groove is provided on the upper fixing seat, side clamps are symmetrically installed on both sides of the fixing frame, the side clamps are elastic structures, and the ends of the side clamps have outward flange structures, a one-way valve is installed on the sampling tube, and a baffle corresponding to the position of the one-way valve is installed on the fixing frame, and the baffle is a mesh structure.

[0006] Optionally, a positioning block is fixedly connected to the bottom of the upper fixed seat, an adapter portion is provided at the middle position of the positioning block, a round protrusion adapted to the contour of the adapter portion is fixedly connected to the top of the sampling tube, a guide groove is provided on one side of the positioning block, the positioning block is a segmented elastic structure, and a support frame is installed inside the positioning block.

[0007] Optionally, a plug block is fixedly connected to the top of the lower fixed seat, an electromagnet is fixedly connected to one side of the plug block, a limit block corresponding to the position of the plug block is fixedly connected to the bottom of the base, and a slot matching the size of the plug block is provided on the limit block.

[0008] Optionally, a triangular spring block is slidably connected inside the limit block, one side of the triangular spring block is a triangular structure and the other side is a curved elastic structure, a magnetic sheet is fixedly connected to the inner wall of the triangular spring block, and an avoidance groove corresponding to the position of the magnetic sheet is provided on the curved elastic side of the triangular spring block, and the bottom end of the pull rod is fixedly connected to a triangular block.

[0009] Optionally, the top of the base and the top of the pull rod are fixedly connected to a mounting plate, a mounting groove is provided on the mounting plate, a piston is clamped on the top of the mounting plate on the pull rod, a mounting block matching the size of the mounting groove is fixedly connected to the bottom of the piston, and the piston is made of rubber.

[0010] Optionally, an elastic frame is installed between the mounting plate located at the top of the base and the mounting plate located at the top of the pull rod. The elastic frame is a curved elastic structure and is made of plastic. Both ends of the elastic frame are fixedly connected with an insertion plate. A groove body that is adapted to the contour of the insertion plate is opened on the mounting plate. The elastic frame is fixed to the mounting plate through the insertion plate.

[0011] Optionally, a sliding block is fixedly connected to the outer wall of the piston, a sliding groove corresponding to the position of the sliding block is provided on the inner wall of the sampling cylinder, and a scale is provided on the outer wall of the sampling cylinder.

[0012] The present invention also provides a method for a water conservancy and hydrology monitoring device, comprising the following steps:

[0013] Step 1: Assemble the sampling tube to the fixing frame: let the limit block at the bottom of the base be sleeved on the plug block at the top of the lower fixing seat, then move the upper fixing seat to let the round protrusion slide into the adapter along the guide groove, when the plug block is inserted into the slot on the limit block, and the round protrusion is clamped in the adapter in the positioning block, the assembly of the sampling tube is completed;

[0014] Step 2: Place the sampling tube into the water area: The user adjusts the reeling mechanism to retract the cable on the top of the fixed frame, allowing the fixed frame to sink into the water under its own gravity. The user determines the depth of the sampling tube based on the depth gauge on the fixed frame.

[0015] Step 3, sampling processing: when the sampling tube reaches the specified depth, the user energizes the electromagnet through the wireless control module. After power is turned on, the electromagnet attracts the magnetic sheet inside the triangular spring block. Under the adsorption effect, the triangular spring block avoids the triangular block on the pull rod. Under the pulling force of the elastic frame, the piston moves toward the base. During the movement of the piston, negative pressure is generated in the sampling tube. As the negative pressure increases, the water outside the sampling tube enters the sampling tube from the one-way valve and is stored in the sampling tube under the sealing effect of the piston.

[0016] Step 4, retract the sampling tube: After the sampling is completed, the user readjusts the winding mechanism to take the sampling tube out of the water. After the sampling tube is taken out, follow the reverse operation of step 1 to remove the sampling tube from the fixed frame. After the sampling tube is removed, the water sample inside the sampling tube can be carried and transported. When the water sample needs to be taken out, screw the base and remove the base from the bottom of the sampling tube to pour out the sample in the sampling tube.

[0017] Compared with the prior art, the beneficial effect of the present invention is that: the present application sets up a sampling mechanism, so that when the sampling tube is inserted into the water, the sampling operation can be automatically completed without the operator performing complicated operations. Since a depth gauge and a wireless control module are installed on the fixed frame, the user can clearly understand the depth of the sampling tube. When the depth is determined, the user only needs to control the sampling tube through the wireless control module on the monitoring ship to automatically complete the sampling operation. When the sampling tube finishes sampling, the water sample will be automatically sealed and preserved, and the user can disassemble it by himself to carry and transport it for subsequent detection and use.

[0018] By setting up a fixing frame, the overall contour of the fixing frame is an elastic structure, and the fixing frame has an elastic tendency to clamp toward the middle position. Such a setting allows the sampling tube to be installed and fixed with the help of the elastic action of the fixing frame. Since the sizes of the plug block and the slot are compatible, the user can first insert the plug block into the slot when installing the sampling tube, and limit the plug block and the slot to each other to achieve a pre-fixing effect on the sampling tube; since the positioning block is a segmented elastic structure and has an adapter portion in the middle that is compatible with the contour of the round convex block, the round convex block is allowed to slide into the adapter portion along the guide groove, and the sampling tube can be locked and fixed with the help of the positioning block.

[0019] By providing side clamps and baffles, the side clamps can clamp and limit the outer wall of the sampling tube, thereby improving the stability of the sampling tube. Since the end of the side clamp has an outward flange structure, the user can use the flange structure to bend the side clamp outward during the installation of the sampling tube, thereby improving the efficiency of the sampling tube assembly process. The baffle is provided at the water inlet of the sampling tube and has a mesh structure. Such an arrangement prevents impurities from blocking the water inlet when the sampling tube absorbs water under the blocking effect of the baffle.

[0020] By setting the pull rod, piston, triangular block and triangular spring block, when the user continues to push the pull rod into the sampling tube, the inclined surface on the triangular block will squeeze the inclined surface on the triangular spring block, and in the process of squeezing, the triangular spring block will be deformed with the help of the guidance of the inclined surface. After the deformation, the triangular spring block will shrink into the limit block until the triangular block passes over the triangular spring block. At this time, the triangular spring block will reset under the action of elasticity, and the plane of the top of the reset triangular spring block will fit on the plane of the bottom of the triangular block. When the user stops pushing the pull rod, the pull rod will be pushed in the opposite direction under the elastic action of the elastic frame until the plane of the bottom of the triangular block hits the inclined surface at the top of the triangular spring block. At this time, the triangular block cannot pass through the triangular spring block under the blocking action of the triangular spring block, so the pull rod cannot continue to slide out of the sampling tube. This arrangement ensures that when the piston is pushed to the sampling tube, the pull rod will be pushed in the opposite direction until the bottom of the triangular block hits the inclined surface at the top of the triangular spring block. After the sample is put into the tube, the pull rod can be limited by the triangular spring block, so that the elastic frame is consistently in a stretched loading state, and the pull rod also keeps a tendency to slide outward. The operator energizes the electromagnet through the wireless control module. Since the positions of the electromagnet and the magnetic sheet correspond, the magnetic sheet will move toward the electromagnet under the action of the magnetic attraction force after power is turned on. Since an avoidance groove corresponding to the position of the magnetic sheet is provided on the limit block, the magnetic sheet can slide smoothly toward the electromagnet. During the sliding process of the magnetic sheet, the triangular spring block will cause the deformation and shrink into the limit block. At this time, the triangular spring block will not block and limit the triangular block. The pull rod will pull the piston to slide outside the sampling tube under the elastic force of the elastic frame, and allow the sampling tube to complete automatic sampling during the sliding process. Such a setting is reasonable and ingenious, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the three-dimensional structure of the water conservancy and hydrological monitoring device;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing frame, the sampling tube and the sampling mechanism from the first perspective;

[0023] Figure 3 It is a schematic diagram of the stereoscopic structure of the fixing frame, the sampling tube and the sampling mechanism from the second viewing angle;

[0024] Figure 4 for Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing frame, the sampling tube and the sampling mechanism from the third perspective;

[0026] Figure 6 for Figure 5 The enlarged three-dimensional structure diagram at B in the middle;

[0027] Figure 7 It is a schematic diagram of the enlarged three-dimensional structure of the fixing frame;

[0028] Figure 8 It is a schematic diagram of the enlarged three-dimensional structure of the sampling tube;

[0029] Fig. 9 It is a schematic diagram of the cutaway three-dimensional structure of the sampling tube and the positioning block;

[0030] Fig.10 It is an enlarged three-dimensional structural diagram of the base, the tie rod, the piston and the elastic frame;

[0031] Fig.11 for Fig.10 Schematic diagram of the explosion three-dimensional structure;

[0032] Fig.12 for Fig.10 A schematic diagram of a top view structure;

[0033] Fig.13 It is a schematic diagram of the cross-sectional structure of the tie rod in cooperation with the fixing frame and the base before being locked;

[0034] Fig.14 for Fig.13 The enlarged three-dimensional structure diagram at C in the middle;

[0035] Fig.15 It is a schematic diagram of the cross-sectional structure of the tie rod after being locked and cooperating with the fixing frame and the base;

[0036] Fig.16 for Fig.15 The enlarged three-dimensional structure diagram at D in the middle;

[0037] Fig.17This is an enlarged structural diagram of the tie rod after it is locked and coordinated with the fixing frame and the base;

[0038] Fig.18 It is a schematic diagram of the three-dimensional structure of the triangular spring block and the limit block.

[0039] The numbers in the figure represent:

[0040] 1-monitoring ship; 2-winding mechanism; 3-fixed frame; 301-upper fixed seat; 302-lower fixed seat; 303-side clamp; 304-blocking plate; 305-positioning block; 306-adapter; 307-guide groove; 308-insertion block; 309-electromagnet; 4-sampling tube; 401-round convex block; 402-one-way valve; 5-base; 501-limiting block; 502-slot; 503-triangular spring block; 504-magnetic suction sheet; 505-avoidance groove; 6-pull rod; 601-triangular block; 602-mounting plate; 603-mounting groove; 7-piston; 701-mounting block; 8-elastic frame; 801-insertion plate. DETAILED DESCRIPTION

[0041] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0042] This embodiment provides a technical solution: a water conservancy and hydrology monitoring device and method, such as Figures 1 to 8 As shown, it includes a monitoring ship 1 and a winding mechanism 2, a fixing frame 3 is installed on the winding mechanism 2, a depth gauge and a wireless control module are installed on the fixing frame 3, a sampling tube 4 is clamped in the fixing frame 3, a cable is fixedly connected to the top of the fixing frame 3, and the winding mechanism 2 is used to wind up the cable on the top of the fixing frame 3; a sampling mechanism, the sampling mechanism is used to assist operators in sampling, and the sampling mechanism is respectively connected to the sampling tube 4 and the fixing frame 3; the sampling mechanism includes a base 5, a pull rod 6, a piston 7, an upper fixing seat 301 and a lower fixing seat 302, the upper fixing seat 301 and the lower fixing seat 302 are respectively fixedly connected to the top and the bottom of the fixing frame 3, the base 5 is screwed to the bottom of the sampling tube 4, the pull rod 6 is inserted in the base 5, and the piston 7 is fixed The device provided in the present application is fixedly connected to one end of the pull rod 6. By arranging a sampling mechanism, when the sampling tube 4 is inserted into the water, the sampling operation can be automatically completed without the operator performing complicated operations. Since a depth gauge and a wireless control module are installed on the fixed frame 3 (both are disclosed as prior art in this application and will not be described in detail), the user can clearly understand the depth of the sampling tube 4. When the depth is determined, the user only needs to control the sampling tube 4 through the wireless control module on the monitoring ship 1 to automatically complete the sampling operation. When the sampling tube 4 finishes sampling, the water sample will be automatically sealed and stored, and the user can disassemble it for carrying and transportation by himself for subsequent detection and use.

[0043] In this embodiment, if Figures 1 to 7 As shown, the bottom and top of the fixing frame 3 are both provided with a curved structure protruding outward, a lightweight groove is provided on the upper fixing seat 301, side clamps 303 are symmetrically installed on both sides of the fixing frame 3, the side clamps 303 are elastic structures, and the ends of the side clamps 303 have an outward flange structure, a one-way valve 402 is installed on the sampling tube 4, and a baffle 304 corresponding to the position of the one-way valve 402 is installed on the fixing frame 3, and the baffle 304 is a mesh structure. The bottom of the upper fixing seat 301 is fixed A positioning block 305 is fixedly connected, and an adapter portion 306 is arranged at the middle position of the positioning block 305. A round convex block 401 matching the contour of the adapter portion 306 is fixedly connected to the top of the sampling tube 4. A guide groove 307 is provided on one side of the positioning block 305. The positioning block 305 is a segmented elastic structure. A support frame is installed in the positioning block 305. An insert block 308 is fixedly connected to the top of the lower fixed seat 302, and a limit block corresponding to the position of the insert block 308 is fixedly connected to the bottom of the base 5. 501, a slot 502 matching the size of the insert block 308 is provided on the limit block 501, and the sampling tube 4 can be freely disassembled and assembled on the fixing frame 3. Specifically, since the bottom and top of the fixing frame 3 are both provided with a curved surface structure protruding outward, the overall profile of the fixing frame 3 is an elastic structure, and the fixing frame 3 has an elastic tendency to clamp toward the middle position. Such a setting enables the sampling tube 4 to be installed and fixed by means of the elastic effect of the fixing frame 3. Due to the elasticity of the insert block 308 and the slot 502, the sampling tube 4 can be freely disassembled and assembled on the fixing frame 3. The sizes are compatible, so when the user installs the sampling tube 4, the user can first insert the plug block 308 into the slot 502, and limit the plug block 308 and the slot 502 to each other to achieve a pre-fixing effect on the sampling tube 4; since the positioning block 305 is a segmented elastic structure and has an adapter part 306 in the middle that is compatible with the contour of the round protrusion 401, the round protrusion 401 is allowed to slide into the adapter part 306 along the guide groove 307, and the sampling tube 4 can be locked and fixed with the help of the positioning block 305.

[0044] Furthermore, the positioning block 305 is not only an elastic structure but also has a supporting frame arranged inside, so that the positioning block 305 can not only install and fix the sampling tube 4 with the help of elastic force, but also can play a certain buffering effect, thereby improving the safety of the sampling tube 4. Secondly, side clamps 303 are also installed on both sides of the fixing frame 3, and the side clamps 303 can clamp and limit the outer wall of the sampling tube 4, thereby improving the stability of the sampling tube 4. Since the end of the side clamp 303 has an outward flange structure, the user can use the flange structure to move the sampling tube 4 in the process of installing the sampling tube 4. The side clamp 303 is bent outward to improve the efficiency of the sampling tube 4 assembly process. The above-mentioned structure can not only quickly realize the fast disassembly and assembly between the fixing frame 3 and the sampling tube 4, but also the fixing frame 3 can buffer and protect the sampling tube 4, improve the safety of the sampling tube 4 during use, and ensure the integrity of the sample. In addition, a blocking piece 304 is also arranged on the fixing frame 3. The blocking piece 304 is arranged at the water inlet of the sampling tube 4 and has a mesh structure. Such an arrangement prevents impurities from blocking the water inlet when the sampling tube 4 absorbs water under the blocking effect of the blocking piece 304.

[0045] In this embodiment, if Figures 1 to 12As shown, the top of the base 5 and the top of the pull rod 6 are fixedly connected with a mounting plate 602, a mounting groove 603 is provided on the mounting plate 602, a piston 7 is clamped on the top of the mounting plate 602 on the pull rod 6, a mounting block 701 that matches the size of the mounting groove 603 is fixedly connected to the bottom of the piston 7, the piston 7 is made of rubber, an elastic frame 8 is installed between the mounting plate 602 at the top of the base 5 and the mounting plate 602 at the top of the pull rod 6, the elastic frame 8 is a curved elastic structure and is made of plastic, both ends of the elastic frame 8 are fixedly connected with plug plates 801, and a mounting plate 602 is provided on the mounting plate 602. The groove body is adapted to the contour of the plug plate 801, the elastic frame 8 is fixed to the mounting plate 602 through the plug plate 801, a slider is fixedly connected to the outer wall of the piston 7, a slide groove corresponding to the position of the slider is opened on the inner wall of the sampling tube 4, and a scale is set on the outer wall of the sampling tube 4. The piston 7 is plugged and fixed to the mounting plate 602 at the top of the pull rod 6 through the mounting block 701. Since the slider is fixedly connected to the outer wall of the piston 7 and the slide groove corresponding to the position of the slider is opened on the inner wall of the sampling tube 4, the piston 7 can only slide in the sampling tube 4 but cannot rotate, thereby ensuring that the piston 7 does not slide up and down The phenomenon of misalignment occurs during the process, thereby improving the sealing between the piston 7 and the sampling tube 4; since the top of the base 5 and the top of the pull rod 6 are fixedly connected to the mounting plate 602, and the elastic frame 8 is fixed between the two mounting plates 602, when the user pushes and pulls the pull rod 6 to make the piston 7 slide into the sampling tube 4, the elastic frame 8 will be stretched and deformed, and exert a reverse pulling force on the piston 7 during the deformation process. During the inward sliding of the piston 7, the user can open the one-way valve 402 to allow the outside air to enter the sampling tube 4 to ensure that the sampling tube 4 is consistent with the outside air pressure. When the user stops pulling When the pull rod 6 is moved, the piston 7 will slide in the opposite direction under the elastic action of the elastic frame 8, and the air pressure in the sampling tube 4 will be increased during the sliding process. When the air pressure is large enough, the outside air will enter the sampling tube 4 from the one-way valve 402. Through such an arrangement, when the sampling tube 4 is placed in water, the water can be sampled; the elastic frame 8 and the two mounting plates 602 are fixed by plugging in the plug plates 801. Such an installation method is not only simple in structure, but also convenient for disassembly and assembly, which improves the practicability of the elastic frame 8 and ensures that the sampling tube 4 can be disassembled, tilted and disinfected after each use.

[0046] In this embodiment, if Figures 13 to 18As shown, one side of the plug block 308 is fixedly connected to the electromagnet 309, and a triangular spring block 503 is slidably connected in the limit block 501. One side of the triangular spring block 503 is a triangular structure and the other side is a curved elastic structure. A magnetic suction piece 504 is fixedly connected to the inner wall of the triangular spring block 503. A avoidance groove 505 corresponding to the position of the magnetic suction piece 504 is provided on one side of the curved elastic surface of the triangular spring block 503. A triangular block 601 is fixedly connected to one end of the bottom of the pull rod 6. When the user continues to push the pull rod 6 into the sampling tube 4, the pull rod 6 will drive the piston 7 to move into the sampling tube 4 until the triangular block 601 at the end of the pull rod 6 hits the triangular spring block 503 (as shown in FIG. Fig.13 and Fig.14 As shown in the figure, the inclined surface of the triangular block 601 and the inclined surface on the triangular spring block 503 conflict with each other. The user continues to push the pull rod 6 into the sampling tube 4. The inclined surface on the triangular block 601 will squeeze the inclined surface on the triangular spring block 503, and in the process of squeezing, the triangular spring block 503 will be deformed with the help of the guidance of the inclined surface. After the deformation, the triangular spring block 503 will shrink into the limit block 501 until the triangular block 601 passes over the triangular spring block 503. At this time, the triangular spring block 503 will be reset under the action of elasticity. The plane of the top of the reset triangular spring block 503 will fit on the plane of the bottom of the triangular block 601. When the user stops pushing the pull rod 6, the pull rod 6 will be pushed in the opposite direction under the elastic action of the elastic frame 8 until the plane at the bottom of the triangular block 601 conflicts with the inclined surface at the top of the triangular spring block 503 (as shown in the figure). Fig.15 and Fig.16 As shown in the figure, at this time, due to the blocking effect of the triangular spring block 503, the triangular block 601 cannot pass through the triangular spring block 503, so the pull rod 6 cannot continue to slide out of the sampling tube 4. This arrangement ensures that when the piston 7 is pushed into the sampling tube 4, the pull rod 6 can be limited by the triangular spring block 503, so that the elastic frame 8 is consistently in a stretched loading state, and the pull rod 6 also keeps the tendency to slide outward.

[0047] When the sampling tube 4 penetrates into the water area, the operator energizes the electromagnet 309 through the wireless control module. Since the positions of the electromagnet 309 and the magnetic sheet 504 correspond to each other, the magnetic sheet 504 will move toward the electromagnet 309 under the action of the magnetic attraction force after power is turned on. Since the avoidance groove 505 corresponding to the position of the magnetic sheet 504 is provided on the limit block 501, the magnetic sheet 504 can slide smoothly toward the electromagnet 309. During the sliding process of the magnetic sheet 504, the triangular spring block 503 will be deformed and contracted into the limit block 501. At this time, the triangular spring block 503 will not block and limit the triangular block 601. The pull rod 6 will pull the piston 7 to slide out of the sampling tube 4 under the elastic force of the elastic frame 8, and allow the sampling tube 4 to complete automatic sampling during the sliding process. Such a setting is reasonable and ingenious, and the cost is low.

[0048] In the present application, since the piston 7, the base 5 and the elastic frame 8 are all freely detachable structures, such a configuration can ensure that the internal structure of the sampling tube 4 is disassembled and cleaned after use, thereby increasing the service life of the device. Moreover, when the sampling is completed, the user can remove the sampling tube 4 from the fixed frame 3, and then install a new sampling tube 4 to sample water in different areas, thereby realizing the function of multiple sampling.

[0049] According to the working principle of the present invention, the position of the piston 7 needs to be adjusted before the sampling tube 4 is used. Since the top of the base 5 and the top of the pull rod 6 are fixedly connected with the mounting plate 602, and the elastic frame 8 is fixed between the two mounting plates 602, when the user pushes and pulls the pull rod 6 to make the piston 7 slide into the sampling tube 4, the elastic frame 8 will be stretched and deformed, and a reverse pulling force will be applied to the piston 7 during the deformation process. During the inward sliding of the piston 7, the user can open the one-way valve 402 to allow external air to enter the sampling tube 4 to ensure that the sampling tube 4 and the external air pressure are consistent. When the user continues to push the pull rod 6 into the sampling tube 4, the pull rod 6 will drive the piston 7 to move into the sampling tube 4 until the triangular block 601 at the end of the pull rod 6 hits the triangular spring block 503, and the inclined surface of the triangular block 601 hits the inclined surface on the triangular spring block 503. The user continues to push the pull rod 6 into the sampling tube 4. When the pull rod 6 is pushed in the tube 4, the inclined surface on the triangular block 601 will squeeze the inclined surface on the triangular spring block 503, and in the process of squeezing, the triangular spring block 503 will be deformed with the help of the guidance of the inclined surface. After the deformation, the triangular spring block 503 will shrink into the limit block 501 until the triangular block 601 passes over the triangular spring block 503. At this time, the triangular spring block 503 will be reset under the action of elasticity, and the plane of the top of the reset triangular spring block 503 will fit on the plane of the bottom of the triangular block 601. When the user stops pushing the pull rod 6, the pull rod 6 will be pushed in the opposite direction under the elastic action of the elastic frame 8 until the plane at the bottom of the triangular block 601 hits the inclined surface at the top of the triangular spring block 503. At this time, the triangular block 601 cannot pass through the triangular spring block 503 under the blocking action of the triangular spring block 503, so the pull rod 6 cannot continue to slide outside the sampling tube 4. When the pull rod 6 is locked, the position adjustment of the piston 7 is completed.

[0050] After the piston 7 is adjusted, the user first allows the limit block 501 at the bottom of the base 5 to be sleeved on the plug block 308 at the top of the lower fixed seat 302. Since the sizes of the plug block 308 and the slot 502 are compatible, the user can first insert the plug block 308 into the slot 502 when installing the sampling tube 4, so that the plug block 308 and the slot 502 limit each other to achieve a pre-fixing effect on the sampling tube 4, and then bend the upper fixed seat 301 to allow the round protrusion 401 to slide into the adapter portion 306 along the guide groove 307. Since the positioning block 305 is a segmented elastic structure and has an adapter portion 306 in the middle that is compatible with the contour of the round protrusion 401, the round protrusion 401 is allowed to slide into the adapter portion 306 along the guide groove 307, which can not only lock and fix the sampling tube 4 with the help of the positioning block 305, but also the positioning block 305 can have a certain buffering effect on the sampling tube 4, thereby improving the safety of the sampling tube 4.

[0051] When the sampling tube 4 is fixed, the user adjusts the winding mechanism 2 to retract and release the cable on the top of the fixing frame 3 to allow the fixing frame 3 to sink into the water under its own gravity. The user determines the depth of the sampling tube 4 based on the depth gauge on the fixing frame 3. When the sampling tube 4 reaches the specified depth, the user energizes the electromagnet 309 through the wireless control module. Since the positions of the electromagnet 309 and the magnetic suction piece 504 correspond to each other, the magnetic suction piece 504 will move toward the electromagnet 309 under the action of magnetic attraction after power is turned on. Since the avoidance groove 505 corresponding to the position of the magnetic suction piece 504 is provided on the limit block 501, the magnetic suction piece 504 can slide smoothly toward the electromagnet 309. During the sliding process of the magnetic suction piece 504, the triangular spring block 503 will be deformed and contracted to the limit block. 501, at this time the triangular spring block 503 will not block and limit the triangular block 601, and the pull rod 6 will pull the piston 7 to slide outside the sampling tube 4 under the elastic force of the elastic frame 8. During the movement of the piston 7, negative pressure is generated in the sampling tube 4. As the negative pressure increases, the water outside the sampling tube 4 enters the sampling tube 4 from the one-way valve 402 and is stored in the sampling tube 4 under the sealing action of the piston 7. After the sampling is completed, the user readjusts the winding mechanism 2 to take the sampling tube 4 out of the water. After the sampling tube 4 is taken out, the sampling tube 4 is removed from the fixed frame 3 in the reverse operation of step 1. After the sampling tube 4 is removed, the water sample inside the sampling tube 4 can be carried and transported. When the water sample needs to be taken out, the base 5 is screwed and the base 5 is removed from the bottom of the sampling tube 4 to pour out the sample in the sampling tube 4.

[0052] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A water conservancy and hydrological monitoring device, comprising a monitoring vessel and a winding mechanism, characterized in that: A fixing frame is installed on the reeling mechanism, a depth gauge and a wireless control module are installed on the fixing frame, a sampling tube is clamped in the fixing frame, a cable is fixedly connected to the top of the fixing frame, and the reeling mechanism is used to reel the cable on the top of the fixing frame; A sampling mechanism, which is used to assist operators in sampling, and is connected to the sampling tube and the fixing frame respectively; The sampling mechanism includes a base, a pull rod, a piston, an upper fixed seat and a lower fixed seat. The upper fixed seat and the lower fixed seat are respectively fixedly connected to the top and bottom of the fixed frame. The base is screwed to the bottom of the sampling tube. The pull rod is inserted into the base, and the piston is fixedly connected to one end of the pull rod.

2. The water conservancy and hydrology monitoring device according to claim 1, characterized in that: The bottom and top of the fixing frame are both provided with a curved surface structure protruding outward, the upper fixing seat is provided with a lightweight groove, side clamps are symmetrically installed on both sides of the fixing frame, the side clamps are elastic structures, and the ends of the side clamps have outward flange structures, a one-way valve is installed on the sampling tube, and a baffle corresponding to the position of the one-way valve is installed on the fixing frame, and the baffle is a mesh structure.

3. The water conservancy and hydrology monitoring device according to claim 1, characterized in that: A positioning block is fixedly connected to the bottom of the upper fixing seat, an adapter portion is provided at the middle position of the positioning block, a round protrusion adapted to the contour of the adapter portion is fixedly connected to the top of the sampling tube, a guide groove is provided on one side of the positioning block, the positioning block is a segmented elastic structure, and a support frame is installed in the positioning block.

4. The water conservancy and hydrology monitoring device according to claim 1, characterized in that: The top of the lower fixing seat is fixedly connected with an insert block, one side of the insert block is fixedly connected with an electromagnet, the bottom of the base is fixedly connected with a limit block corresponding to the position of the insert block, and the limit block is provided with a slot adapted to the size of the insert block.

5. The water conservancy and hydrology monitoring device according to claim 4, characterized in that: A triangular spring block is slidably connected inside the limit block, one side of the triangular spring block is a triangular structure and the other side is a curved elastic structure, a magnetic sheet is fixedly connected to the inner wall of the triangular spring block, and an avoidance groove corresponding to the position of the magnetic sheet is provided on the curved elastic side of the triangular spring block, and a triangular block is fixedly connected to one end of the bottom of the pull rod.

6. The water conservancy and hydrology monitoring device according to claim 1, characterized in that: The top of the base and the top of the pull rod are both fixedly connected with a mounting plate, a mounting groove is opened on the mounting plate, a piston is clamped on the top of the mounting plate on the pull rod, and a mounting block matching the size of the mounting groove is fixedly connected to the bottom of the piston, and the piston is made of rubber.

7. The water conservancy and hydrology monitoring device according to claim 6, characterized in that: An elastic frame is installed between the mounting plate located at the top of the base and the mounting plate located at the top of the pull rod. The elastic frame is a curved elastic structure and is made of plastic. Both ends of the elastic frame are fixedly connected with plug plates. A groove body that is adapted to the contour of the plug plate is opened on the mounting plate. The elastic frame is fixed to the mounting plate through the plug plate.

8. The water conservancy and hydrology monitoring device according to claim 6, characterized in that: A sliding block is fixedly connected to the outer wall of the piston, a sliding groove corresponding to the position of the sliding block is opened on the inner wall of the sampling cylinder, and a scale is arranged on the outer wall of the sampling cylinder.

9. A method of the water conservancy and hydrology monitoring device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Assemble the sampling tube to the fixing frame: let the limit block at the bottom of the base be sleeved on the plug block at the top of the lower fixing seat, then move the upper fixing seat to let the round protrusion slide into the adapter along the guide groove, when the plug block is inserted into the slot on the limit block, and the round protrusion is clamped in the adapter in the positioning block, the assembly of the sampling tube is completed; Step 2: Place the sampling tube into the water area: The user adjusts the reeling mechanism to retract the cable on the top of the fixed frame, allowing the fixed frame to sink into the water under its own gravity. The user determines the depth of the sampling tube based on the depth gauge on the fixed frame. Step 3, sampling processing: when the sampling tube reaches the specified depth, the user energizes the electromagnet through the wireless control module. After power is turned on, the electromagnet attracts the magnetic sheet inside the triangular spring block. Under the adsorption effect, the triangular spring block avoids the triangular block on the pull rod. Under the pulling force of the elastic frame, the piston moves toward the base. During the movement of the piston, negative pressure is generated in the sampling tube. As the negative pressure increases, the water outside the sampling tube enters the sampling tube from the one-way valve and is stored in the sampling tube under the sealing effect of the piston. Step 4, retract the sampling tube: After the sampling is completed, the user readjusts the winding mechanism to take the sampling tube out of the water. After the sampling tube is taken out, follow the reverse operation of step 1 to remove the sampling tube from the fixed frame. After the sampling tube is removed, the water sample inside the sampling tube can be carried and transported. When the water sample needs to be taken out, screw the base and remove the base from the bottom of the sampling tube to pour out the sample in the sampling tube.

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