Ecological lake water quality environment monitoring device

Abstract

The invention discloses an ecological lake water quality environment monitoring device, which is characterized in that empty sampling bottles are stored through a funnel, the empty sampling bottles are more easily added, the preparation work before diving is simplified, the operation on a ship is facilitated, the sampling bottles after sampling are stored through a turntable, the sampling bottles can be orderly arranged, and the sampling efficiency is improved. Subsequent recognition work of the sampling bottle for sampling is conveniently completed, the replaceable sampling bottle is used for keeping a water sample, the difficulty of cleaning work is reduced, and the sampling bottle is matched with the intermittent reciprocating motion mode of the chain intermittent mechanism at the two ends in the mode that the bottle body and the sliding block move relatively to control opening and closing of the valve. A plurality of actions of pushing the sampling bottle at the bottom of the funnel into the turntable, extruding the sampling bottle to open and keep the valve, and loosening the sampling bottle to automatically close the valve can be automatically completed, so that a water sample can be conveniently collected and stored.

Description

Technical Field

[0001] The invention relates to the technical field of sampling, in particular to a device for monitoring the water quality environment of an ecological lake. Background Art

[0002] Ecological lake water quality monitoring is the process of evaluating water quality by monitoring and measuring the types, concentrations, and changing trends of pollutants in water bodies. Traditionally, this monitoring has been conducted by inspectors aboard boats. Specifically, they release a submersible equipped with multiple sampling containers underwater. These containers are opened at different depths to collect water samples corresponding to the depths, which are then sent to a laboratory for analysis.

[0003] In the prior art, a Chinese patent with publication number CN119738223B and publication date June 27, 2025 discloses an underwater robot. The outer frame assembly carries multiple sampling cylinders. When the sampling cylinder descends to a specified depth, the adjustment assembly is started to change the bottom of the sampling cylinder from a sealed state to a sampling state, thereby collecting water samples. The sampling cylinder is fixed to the bottom of the outer frame assembly. The sampling cylinder is sealed by a sealing plate and a special-shaped protrusion. If multiple rounds of dives are required to collect water samples, after collecting the water samples, the entire device needs to be flipped over so that its bottom is facing upward, and the sampling cylinder is opened to take out the water sample. It is also necessary to clean the inside of the sampling cylinder to prepare for the next round of diving sampling. The sampling preparation work before diving is cumbersome, and the above work must be completed on board. There are disadvantages of high difficulty in operation and low sampling efficiency.

[0004] Therefore, it is necessary to develop a water quality monitoring device that can quickly separate water samples from the diving device, has low cleaning difficulty, and simple preparation work before diving. It is easy to operate on the ship, improve the efficiency of multiple dives, and improve the overall operational efficiency. Summary of the Invention

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

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a device for monitoring water quality in ecological lakes, comprising a funnel capable of accommodating multiple sampling bottles, the funnel being fixed to the outside of a housing, a turntable capable of accommodating multiple sampling bottles being provided in front of the funnel, each sampling bottle comprising a bottle body with an inlet tube, the inlet tube being provided with a valve, a slider capable of actuating the valve being slidably provided on the inlet tube, and a sampling return spring being provided between the slider and the bottle body for keeping the valve closed in a free state; There are multiple through holes for the inlet pipes to extend out in front of the turntable. A chain intermittent mechanism is installed in the shell. When the connecting frame of the chain intermittent mechanism moves along the straight section, the guide rod of the chain intermittent mechanism can push the sampling bottle at the bottom of the funnel into the turntable and squeeze the sampling bottle to open the valve. When the connecting frame rotates along the front sprocket, the guide rod remains stationary. The front sprocket is connected to the incomplete gear, and the turntable is detachably fixed on the indexing gear. The incomplete gear and the indexing gear are rotatably arranged in the housing. The incomplete gear rotates one circle for each cycle of the chain. When the connecting frame retreats along the straight section, the incomplete gear can mesh with the indexing gear and drive the turntable to index.

[0007] Preferably, an opening and closing gear is fixed on the input shaft of the valve, the opening and closing gear is meshedly connected to the opening and closing rack, and the opening and closing rack is fixed on the slider.

[0008] Preferably, a pressure cover is slidably provided in the funnel, the pressure cover is rotatably provided on the output end of the electric push rod, and the electric guide rod is fixed outside the shell.

[0009] Preferably, the indexing gear is coaxially fixed with a spline shaft, the turntable is splined to the spline shaft, the front end of the spline shaft is threadedly connected to a nut, and the rear end of the spline shaft is fixed with a step, and the nut can press the spline shaft against the step.

[0010] Preferably, the indexing gear is coaxially fixed with a positioning wheel, a plurality of positioning slots are provided on the positioning wheel, a pin is slidably provided in the housing, a locking reset spring is provided in the housing, and the locking reset spring keeps the pin inserted into the positioning slot in the free state; A cam is coaxially fixed on the incomplete gear. The profile of the cam includes a near-rest profile, a lift profile, a far-rest profile, and a return profile. A push rod is slidably provided in the housing. The push rod can contact the cam. The descent of the push rod can drive the pin to descend, and the rise of the push rod can drive the pin to rise. When the guide rod of the chain intermittent mechanism retreats along the bottom of the funnel, the far rest profile of the cam contacts the push rod, completely separating the pin from the positioning groove.

[0011] Preferably, a connecting plate is fixed under the top rod, a pin is fixed on the connecting plate, the connecting plate is slidably arranged in the shell, a locking reset spring is arranged between the connecting plate and the shell, and the locking reset spring keeps the connecting plate rising in the free state.

[0012] Preferably, a worm is coaxially fixed to the front sprocket, the worm is meshed with a worm wheel, the worm wheel is rotatably arranged in the housing, the worm wheel is coaxially fixed to an input sprocket, the input sprocket is rotatably arranged in the housing, the input sprocket is connected to the output sprocket via a chain, and the output sprocket is coaxially fixed to the incomplete gear.

[0013] Preferably, the inlet tube is threadedly connected to the bottle body.

[0014] Preferably, a conductivity detector is fixed in the shell, and a probe of the conductivity detector extends out of the shell.

[0015] Preferably, a ball spring pin is fixed on the funnel. In the free state, the pin of the ball spring pin extends to prevent the sampling bottle at the bottom of the funnel from moving forward, and can prevent the sampling bottle in the turntable aligned with the bottom of the funnel from retreating to the bottom of the funnel.

[0016] Compared with the prior art, the present invention has the following advantages: empty sampling bottles are stored through the funnel, which makes it easier to add empty sampling bottles, simplifies the preparation work before diving, and facilitates operation on board; the sampling bottles that have completed sampling are stored through the turntable, which enables the sampling bottles to be arranged in an orderly manner, facilitates the subsequent identification of the sampling bottles that have completed sampling; and the use of replaceable sampling bottles to maintain water samples reduces the difficulty of cleaning work.

[0017] The device features independent sampling bottles, each of which can be removed and replaced individually. Once sampling is complete, the filled bottle can simply be removed from the turntable, eliminating the need to clean or dispose of the entire device. While traditional water sampling devices may require repeated cleaning of fixed containers, this application eliminates the tedious internal cleaning process by simply replacing the sampling bottle. Bottles removed from the turntable can be directly processed or sent for inspection, reducing cleaning workload onboard or in the laboratory.

[0018] The sampling bottle controls the opening and closing of the valve by the relative movement of the bottle body and the slider, and the chain intermittent mechanism has a reciprocating motion with stops at both ends. It can automatically complete multiple actions such as pushing the sampling bottle at the bottom of the funnel into the turntable, squeezing the sampling bottle to open and hold its valve, and releasing the sampling bottle to automatically close the valve, which is convenient for the collection and storage of water samples.

[0019] Through the cooperation of the chain intermittent mechanism, the incomplete gear and the indexing gear, the turntable can be driven to index when the chain intermittent mechanism is reset, preparing for the next sampling and facilitating multiple sampling. The turntable is detachably fixed on the indexing gear, which facilitates the quick separation of the turntable from the shell and the replacement of the new turntable, thus simplifying the preparation work before diving, improving the efficiency of multiple dives, and improving the overall operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a first angle axonometric view of the present invention; Figure 2 It is an axonometric view of the sampling bottle of the present invention; Figure 3 is a cross-sectional view of a turntable of the present invention; Figure 4 This is a second angle isometric view of the present invention, with part of the housing removed; Figure 5 Schematic diagram of the chain link and connecting frame of the present invention; Figure 6 This is a third angle isometric view of the present invention, with part of the housing removed; Figure 7 A schematic diagram of the locking and unlocking structure of the turntable of the present invention; Figure 8 This is a fourth-angle isometric view of the present invention, with part of the housing removed; Figure 9 is a schematic diagram of a cam of the present invention; Figure 10 For the present invention Figure 1 A partial enlarged view of point A.

[0021] In the figure: 101, housing, 102, funnel, 103, turntable, 104, disk, 105, baffle, 106, through hole, 107, receiving groove, 108, gland, 109, electric push rod, 110, spline shaft, 111, nut, 112, step, 113, conductivity detector, 114, ball spring pin, 200, sampling bottle, 201, bottle body, 202, inlet pipe, 203, valve, 204, slider, 205, sampling return spring, 206, opening and closing gear, 207, opening and closing rack, 300, chain intermittent mechanism, 3 01. Front sprocket, 302. Rear sprocket, 303. Chain, 304. Connecting frame, 305. Guide rod, 306. Main motor, 401. Incomplete gear, 402. Indexing gear, 403. Positioning wheel, 404. Positioning groove, 406. Pin, 407. Locking return spring, 408. Cam, 409. Near-rest profile, 410. Lift profile, 411. Far-rest profile, 412. Return profile, 413. Push rod, 414. Connecting plate, 415. Worm, 416. Worm wheel, 417. Input sprocket, 418. Output sprocket. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0023] The present invention provides a technical solution: a device for monitoring water quality in ecological lakes, such as Figure 1 、 2As shown, in order to facilitate the storage of water samples, a funnel 102 is included. The funnel 102 can hold Y sampling bottles 200. The funnel 102 is fixed to the outside of the housing 101. The housing 101 in this embodiment is connected to the ship by a rope, and the housing 101 is released underwater by the rope. A turntable 103 is provided in front of the funnel 102. The turntable 103 is rotatably mounted on the housing 101. The turntable 103 can hold X sampling bottles 200. In this embodiment, Y is greater than X. When sampling, a recovery device is required every time X water samples are collected. The sampling bottles 200 in the turntable 103 are taken out and the funnel 102 is opened. The number Y of stored sampling bottles 200 is greater than the number X of sampling bottles 200 that can be stored in the turntable 103, which can reduce the frequency of adding sampling bottles 200 to the funnel 102 and improve work efficiency. It is not necessary for each sampling bottle 200 to include a bottle body 201, an inlet pipe 202 is fixed on the bottle body 201, a valve 203 is provided on the inlet pipe 202, a slider 204 is slidingly provided on the inlet pipe 202, the slider 204 can drive the valve 203, and a sampling reset spring 205 is provided between the slider 204 and the bottle body 201, and the sampling reset spring 205 keeps the valve 203 closed in a free state.

[0024] When the bottle body 201 is squeezed and the slider 204 is kept stationary so that the bottle body 201 is close to the slider 204, the movement of the slider 204 relative to the valve 203 can open the valve 203, thereby allowing water to flow into the bottle body 201. When the bottle body 201 is released, the bottle body 201 is away from the slider 204 under the action of the sampling return spring 205, and the movement of the slider 204 relative to the valve 203 can close the valve 203, thereby storing the water sample in the bottle body 201 of the sampling bottle 200.

[0025] like Figure 2-5 As shown, in order to facilitate the squeezing of the bottle body 201, the turntable 103 includes a disc body 104 and a baffle 105. The disc body 104 is rotatably mounted outside the housing 101. The disc body 104 is provided with X receiving slots 107. Each receiving slot 107 can accommodate a sampling bottle 200. A baffle 105 is fixed in front of the disc body 104. The baffle 105 is provided with X through holes 106 corresponding to the receiving slots 107. The inlet pipe 202 of the sampling bottle 200 can extend from the through hole 106. A chain intermittent mechanism 300 is provided in the housing 101 (shown in FIG. Figure 4), the chain intermittent mechanism 300 is a commonly used intermittent mechanism, and the chain intermittent mechanism 300 includes a front sprocket 301 and a rear sprocket 302 of equal size, and a chain 303 is sleeved on the front sprocket 301 and the rear sprocket 302, and a connecting frame 304 is fixed on a link of the chain 303, and a guide rod 305 is rotatably provided on the connecting frame 304, and the length of the connecting frame 304 is equal to the radius of the sprocket. In this embodiment, the front sprocket 301 and the rear sprocket 302 are rotatably set in the housing 101, and the guide rod 305 is slidably set in the housing 101, and the front sprocket 301 is fixed on the output shaft of the main motor 306, and the main motor 306 is fixed in the housing 101.

[0026] During sampling, the sampling bottle 200 in the funnel 102 drops to the bottom of the funnel 102, and the connecting frame 304 is in the initial position (i.e., the connecting frame 304 is in the initial position). Figure 4 The connecting frame 304 is vertically arranged at this time, and the main motor 306 drives the front sprocket 301 to rotate, thereby driving the chain 303 to move, and then driving the rear sprocket 302 to rotate. The movement of the chain 303 drives the connecting frame 304 to move. When the connecting frame 304 moves forward along the straight section of the chain 303, that is, moves toward the direction close to the turntable 103, it can drive the guide rod 305 forward, so that the guide rod 305 pushes the sampling bottle 200 at the bottom of the funnel 102 into the receiving groove 107 of the turntable 103. As the guide rod 305 moves forward, the sampling bottle 200 The inlet pipe 202 first extends from the through hole 106 of the baffle 105, and the slider 204 is blocked by the baffle 105 of the turntable 103. Then the guide rod 305 continues to push the bottle body 201 to move, thereby driving the inlet pipe 202 to continue to extend, squeezing the bottle body 201 to make it close to the slider 204, and then the slider 204 opens the valve 203, allowing water to flow into the bottle body 201. When the guide rod 305 advances to the limit position, the connecting frame 304 begins to rotate along the front sprocket 301, so that the guide rod 305 remains stationary, allowing water to continue to flow into the bottle body 201.

[0027] As the front sprocket 301 continues to rotate, it drives the chain 303 to move, and then drives the connecting frame 304 to retreat along the straight section of the chain 303, that is, when it moves in the direction away from the turntable 103, it can drive the guide rod 305 to retreat, and then the guide rod 305 releases the sampling bottle 200. The bottle body 201 moves away from the slider 204 under the action of the sampling return spring 205. The movement of the slider 204 relative to the valve 203 can close the valve 203, and then the water sample is stored in the bottle body 201 of the sampling bottle 200.

[0028] In summary, the empty sampling bottles 200 are stored through the funnel 102, which makes it easier to add empty sampling bottles 200, simplifies the preparation work before diving, and facilitates operation on the ship. The sampling bottles 200 that have completed sampling are stored through the turntable 103, which can arrange the sampling bottles 200 in an orderly manner, facilitates the subsequent identification of the sampling bottles 200 that have completed sampling, and uses replaceable sampling bottles 200 to maintain water samples, reducing the difficulty of cleaning work.

[0029] The device is designed with independent sampling bottles 200, and each sampling bottle 200 can be removed and replaced individually. After sampling is completed, it is only necessary to remove the sampling bottle 200 filled with water sample from the turntable 103, without cleaning or processing the entire device. Traditional water sample collection devices may require repeated cleaning of fixed containers, but the present application avoids the tedious steps of internal cleaning by directly replacing the sampling bottles 200. The sampling bottles 200 removed from the turntable 103 can be directly processed or sent for inspection, reducing the cleaning workload on board or in the laboratory.

[0030] The sampling bottle 200 controls the opening and closing of the valve 203 by the relative movement of the bottle body 201 and the slider 204, and cooperates with the chain intermittent mechanism 300 to have a reciprocating motion with stops at both ends. It can automatically complete multiple actions of pushing the sampling bottle 200 at the bottom of the funnel 102 into the turntable 103, squeezing the sampling bottle 200 to open and hold its valve 203, and releasing the sampling bottle 200 to automatically close the valve 203, thereby facilitating the collection and storage of water samples.

[0031] like Figure 3-8 As shown, in order to facilitate resetting, the front sprocket 301 is connected to the incomplete gear 401 through a transmission mechanism, and the turntable 103 is detachably fixed on the indexing gear 402. The incomplete gear 401 and the indexing gear 402 are rotatably arranged in the housing 101. The front sprocket 301 rotates an arc of α, the chain 303 circulates once, and the incomplete gear 401 rotates one circle, that is, the transmission ratio i of the transmission mechanism is i=α / 2π. When the connecting frame 304 of the chain intermittent mechanism 300 retreats along the straight segment (that is, moves in the direction away from the turntable 103), the incomplete gear 401 can mesh with the indexing gear 402 and drive the turntable 103 to index.

[0032] After the connecting frame 304 completes its rotation along the front sprocket 301, the chain intermittent mechanism 300 begins to reset, and the connecting frame 304 begins to retreat along the straight segment, thereby driving the guide rod 305 to retreat. The bottle body 201 of the sampling bottle 200 is reset under the action of the sampling reset spring 205, and the slider 204 moves away from the bottle body 201, thereby closing the valve 203, and thus storing the water sample in the sampling bottle 200. At the same time as the guide rod 305 retreats, the front sprocket 301 drives the incomplete gear 401 (shown in FIG. 2 ) through the transmission mechanism. Figure 7The guide rod 305 moves back to the rear limit position, and the sampling bottle 200 in the funnel 102 continues to descend to the bottom of the funnel 102. Then, the connecting frame 304 rotates along the rear sprocket 302 to return to the initial position, completing the reset work and preparing for the next sampling.

[0033] In summary, through the cooperation of the chain intermittent mechanism 300, the incomplete gear 401 and the indexing gear 402, the turntable 103 can be driven to index when the chain intermittent mechanism 300 is reset, so as to prepare for the next sampling and facilitate multiple sampling. The turntable 103 is detachably fixed on the indexing gear 402, which facilitates the quick separation of the turntable 103 from the shell 101 and the replacement of the new turntable 103, simplifies the preparation work before diving, improves the efficiency of multiple rounds of diving, and improves the overall operation efficiency.

[0034] like Figure 2 As shown, the specific structure of squeezing the slider 204 to open the valve 203 is as follows: an opening and closing gear 206 is fixed to the input shaft of the valve 203, the opening and closing gear 206 is meshed and connected to the opening and closing rack 207, and the opening and closing rack 207 is fixed to the slider 204.

[0035] When the slider 204 approaches the bottle body 201, the opening and closing rack 207 moves relative to the inlet pipe 202, thereby driving the opening and closing gear 206 to rotate, thereby driving the input shaft of the valve 203 to rotate, thereby driving the valve core of the valve 203 to rotate, thereby opening the valve 203. When the slider 204 moves away from the bottle body 201, the opening and closing rack 207 moves in the opposite direction relative to the inlet pipe 202, thereby driving the opening and closing gear 206 to rotate in the opposite direction, thereby driving the input shaft of the valve 203 to rotate in the opposite direction, thereby driving the valve core of the valve 203 to rotate in the opposite direction, thereby closing the valve 203.

[0036] like Figure 1 As shown, in order to improve the stability of the funnel 102 in discharging the sampling bottle 200, a pressure cover 108 is slidingly provided in the funnel 102, and the pressure cover 108 is rotatably provided on the output end of the electric push rod 109, and the electric push rod 109 is fixed outside the shell 101.

[0037] When discharging the sampling bottle 200, the electric push rod 109 shortens, thereby driving the pressure cap 108 to descend, and thereby driving the sampling bottle 200 to move downward. When adding the sampling bottle 200, the electric push rod 109 extends, thereby driving the pressure cap 108 to rise, so that the pressure cap 108 extends out of the funnel 102, and then the pressure cap 108 is rotated to be staggered with the funnel 102, so as to facilitate adding the sampling bottle 200 into the funnel 102. After the sampling bottle 200 is added, the pressure cap 108 is rotated to align with the funnel 102, and then the electric push rod 109 shortens, driving the pressure cap 108 back into the funnel 102.

[0038] like Figure 3 As shown, in order to facilitate the replacement of the turntable 103, the indexing gear 402 is coaxially fixed with a spline shaft 110, the turntable 103 is splined to the spline shaft 110, the front end of the spline shaft 110 is threadedly connected to a nut 111, and the rear end of the spline shaft 110 is fixed with a step 112, and the nut 111 can press the spline shaft 110 against the step 112.

[0039] When disassembling the turntable 103 , first remove the nut 111 and then separate the turntable 103 from the spline shaft 110 . When installing the turntable 103 , first put the turntable 103 on the spline shaft 110 and then use the nut 111 to press the turntable 103 onto the step 112 of the spline shaft 110 .

[0040] like Figure 6 、 7 As shown, in order to facilitate locking and unlocking the turntable 103, the indexing gear 402 is coaxially fixed with a positioning wheel 403, and the positioning wheel 403 is provided with X positioning slots 404. A pin 406 is slidingly provided in the shell 101, and a locking return spring 407 is provided in the shell 101. In the free state, the locking return spring 407 keeps the pin 406 inserted into the positioning slot 404.

[0041] like Figure 6 、 7 As shown in Figure 9, a cam 408 is coaxially fixed on the incomplete gear 401. The profile of the cam 408 includes a near-rest profile 409, a lift profile 410, a far-rest profile 411 and a return profile 412. A push rod 413 is slidingly provided in the housing 101. The push rod 413 can contact the cam 408. The descent of the push rod 413 can drive the pin 406 to descend, and the rise of the push rod 413 can drive the pin 406 to rise.

[0042] When the near-rest profile 409 of the cam 408 contacts the push rod 413, the push rod 413 and the pin 406 are in the upper limit position, and the pin 406 is inserted into the positioning groove 404 of the positioning wheel 403, thereby locking the positioning wheel 403, and then locking the indexing gear 402, and then locking the turntable 103.

[0043] When the lift profile 410 of the cam 408 contacts the push rod 413 , the push rod 413 begins to descend, thereby driving the pin 406 to descend, so that the pin 406 is gradually separated from the positioning groove 404 of the positioning wheel 403 .

[0044] When the distal rest profile 411 of the cam 408 contacts the push rod 413 , the push rod 413 and the pin 406 drop to the lower limit position, and the pin 406 is completely separated from the positioning groove 404 of the positioning wheel 403 .

[0045] When the return profile 412 of the cam 408 contacts the push rod 413, the push rod 413 and the pin 406 rise to the upper limit position under the action of the locking return spring 407, and the pin 406 is inserted into the positioning groove 404 of the positioning wheel 403, thereby locking the positioning wheel 403, and then locking the indexing gear 402, and then locking the turntable 103.

[0046] Each time the chain 303 moves in a cycle, the incomplete gear 401 rotates one circle, thereby driving the cam 408 to rotate one circle. When the connecting frame 304 of the chain intermittent mechanism 300 rotates along the front sprocket 301, the lifting profile 410 of the cam 408 contacts the push rod 413, causing the pin 406 to descend and gradually disengage from the positioning groove 404. When the guide rod 305 of the chain intermittent mechanism 300 retreats along the bottom of the funnel 102, the far rest profile 411 contacts the push rod 413, and the pin 406 is completely separated from the positioning groove 404 of the positioning wheel 403. At the same time, the incomplete gear 401 meshes and engages with the indexing gear 402. The turntable 103 is driven to index, and then the connecting frame 304 rotates along the rear sprocket 302. At this time, the locking return spring 407 makes the push rod 413 contact the return profile 412 of the cam 408, and then the pin 406 is inserted into the positioning groove 404 of the positioning wheel 403, thereby locking the positioning wheel 403, and then locking the indexing gear 402, and then locking the turntable 103. Then the connecting frame 304 continues to move, and the locking return spring 407 makes the push rod 413 keep in contact with the near-rest profile 409 of the cam 408, keeping the pin 406 inserted into the positioning groove 404 of the positioning wheel 403, thereby keeping the turntable 103 stationary.

[0047] In summary, through the cooperation of the chain intermittent mechanism 300, the incomplete gear 401, the indexing gear 402, the positioning wheel 403, the pin 406, the cam 408 and the push rod 413, the turntable 103 can be unlocked and driven to index when the guide rod 305 retreats along the bottom of the funnel 102. When the connecting frame 304 moves along other routes, the turntable 103 remains locked, which facilitates the driving and control of the turntable 103.

[0048] like Figure 6 、 7 As shown, the specific structure of the synchronous lifting of the top rod 413 and the pin 406 is as follows: a connecting plate 414 is fixed under the top rod 413, a pin 406 is fixed on the connecting plate 414, the connecting plate 414 is slidably arranged in the shell 101, and a locking return spring 407 is arranged between the connecting plate 414 and the shell 101. The locking return spring 407 keeps the connecting plate 414 rising in the free state.

[0049] like Figure 6-8As shown, the transmission mechanism connecting the front sprocket 301 and the incomplete gear 401 has the following specific structure: the front sprocket 301 is coaxially fixed with a worm 415, the worm 415 is meshed with a worm wheel 416, the worm wheel 416 is rotatably arranged in the housing 101, and the worm wheel 416 is coaxially fixed with an input sprocket 417 (shown in FIG. Figure 7 ), the input sprocket 417 is rotatably disposed in the housing 101, and the input sprocket 417 is connected to the output sprocket 418 via a chain. The output sprocket 418 is coaxially fixed to the incomplete gear 401. In order to satisfy the transmission ratio i=α / 2π of the transmission mechanism, in this embodiment, the transmission ratio of the input sprocket 417 and the output sprocket 418 is 1, and the transmission ratio of the worm 415 and the worm wheel 416 is i=α / 2π.

[0050] The rotation of the front sprocket 301 can drive the worm 415 to rotate, which in turn drives the worm wheel 416 to rotate, which in turn drives the input sprocket 417 to rotate, which in turn drives the output sprocket 418 to rotate through the chain, and further drives the partial gear 401 to rotate.

[0051] like Figure 2 As shown, in order to facilitate opening of the sampling bottle 200 , the inlet tube 202 is threadedly connected to the bottle body 201 , and the inlet tube 202 can be separated from the bottle body 201 through a spiral motion.

[0052] like Figure 4 As shown, in order to improve the efficiency of water quality analysis, a conductivity detector 113 is fixed in the shell 101. The conductivity detector 113 is a device that measures the conductivity of water and then analyzes parameters such as soluble salts. The probe of the conductivity detector 113 extends out of the shell 101.

[0053] like Figure 10 As shown, in order to prevent the sampling bottle 200 at the bottom of the funnel 102 from accidentally sliding, a ball spring pin 114 is fixed to the funnel 102. The ball spring pin 114 is a commonly used positioning part. The spring keeps the ball pin inside it extended. In the free state, the ball pin of the ball spring pin 114 is extended to prevent the sampling bottle 200 at the bottom of the funnel 102 from moving forward, and can prevent the sampling bottle 200 in the turntable 103 that is aligned with the bottom of the funnel 102 from retreating to the bottom of the funnel 102.

[0054] When the sampling bottle 200 is pushed by the guide rod 305 , the ball pin of the ball spring pin 114 can be squeezed back into the ball spring pin 114 , thereby allowing the sampling bottle 200 to enter the turntable 103 .

[0055] Working process: When sampling, the sampling bottle 200 in the funnel 102 drops to the bottom of the funnel 102, and the connecting frame 304 is in the initial position. At this time, the connecting frame 304 is set vertically, and the main motor 306 drives the front sprocket 301 to rotate, thereby driving the chain 303 to move, and then driving the rear sprocket 302 to rotate. The movement of the chain 303 drives the connecting frame 304 to move. When the connecting frame 304 moves along the straight section of the chain 303, that is, when it moves toward the direction close to the turntable 103, it can drive the guide rod 305 forward, so that the guide rod 305 pushes the sampling bottle 200 at the bottom of the funnel 102 to the receiving slot 10 of the turntable 103. 7, as the guide rod 305 moves forward, the inlet tube 202 of the sampling bottle 200 first extends from the through hole 106 of the baffle 105, and the slider 204 is blocked by the baffle 105 of the turntable 103. Then the guide rod 305 continues to push the bottle body 201 to move, thereby driving the inlet tube 202 to continue to extend, squeezing the bottle body 201 to make it close to the slider 204, and then the slider 204 opens the valve 203, allowing water to flow into the bottle body 201. When the guide rod 305 moves to the limit position, the connecting frame 304 starts to rotate along the front sprocket 301, so that the guide rod 305 remains stationary, allowing water to continue to flow into the bottle body 201.

[0056] As the front sprocket 301 continues to rotate, it drives the chain 303 to move, and then drives the connecting frame 304 to retreat along the straight section of the chain 303, that is, when it moves in the direction away from the turntable 103, it can drive the guide rod 305 to retreat, and then the guide rod 305 releases the sampling bottle 200. The bottle body 201 moves away from the slider 204 under the action of the sampling return spring 205. The movement of the slider 204 relative to the valve 203 can close the valve 203, and then the water sample is stored in the bottle body 201 of the sampling bottle 200.

[0057] After the connecting frame 304 has completed its rotation along the front sprocket 301, the chain intermittent mechanism 300 begins to reset, and the connecting frame 304 begins to retreat along the straight segment, thereby driving the guide rod 305 to retreat. The bottle body 201 of the sampling bottle 200 is reset under the action of the sampling reset spring 205, and the slider 204 moves away from the bottle body 201, thereby closing the valve 203, and thus storing the water sample in the sampling bottle 200. The retreat of the guide rod 305 can drive the incomplete gear 401 to rotate, thereby driving the indexing gear 402 to rotate, thereby driving the turntable 103 to index, aligning an empty receiving groove 107 with the bottom of the funnel 102, and after the guide rod 305 retreats to the rear limit position, the sampling bottle 200 in the funnel 102 continues to descend to the bottom of the funnel 102, and then the connecting frame 304 rotates along the rear sprocket 302 to return to the initial position, completing the reset work and preparing for the next sampling.

[0058] When the connecting frame 304 of the chain intermittent mechanism 300 rotates along the front sprocket 301, the lifting profile 410 of the cam 408 contacts the push rod 413, causing the pin 406 to descend and gradually disengage from the positioning groove 404. When the guide rod 305 of the chain intermittent mechanism 300 retreats along the bottom of the funnel 102, the far rest profile 411 contacts the push rod 413, and the pin 406 is completely separated from the positioning groove 404 of the positioning wheel 403. At the same time, the incomplete gear 401 meshes with the indexing gear 402 and drives the turntable 103 to index.

[0059] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for monitoring water quality in ecological lakes, characterized by: The invention comprises a funnel (102) capable of accommodating a plurality of sampling bottles (200), the funnel (102) being fixed outside a housing (101), a turntable (103) capable of accommodating a plurality of sampling bottles (200) being provided in front of the funnel (102), each sampling bottle (200) comprising a bottle body (201) with an inlet tube (202), a valve (203) being provided on the inlet tube (202), a slider (204) capable of driving the valve (203) being provided slidingly on the inlet tube (202), and a sampling return spring (205) for keeping the valve (203) closed in a free state being provided between the slider (204) and the bottle body (201); A plurality of through holes (106) for extending the inlet pipe (202) are provided in front of the turntable (103), and a chain intermittent mechanism (300) is provided in the housing (101). When the connecting frame (304) of the chain intermittent mechanism (300) moves forward along the straight section, the guide rod (305) of the chain intermittent mechanism (300) can push the sampling bottle (200) at the bottom of the funnel (102) into the turntable (103) and squeeze the sampling bottle (200) to open the valve (203). When the connecting frame (304) rotates along the front sprocket (301), the guide rod (305) remains stationary. The front sprocket (301) is connected to the incomplete gear (401), and the turntable (103) is detachably fixed on the indexing gear (402). The incomplete gear (401) and the indexing gear (402) are rotatably arranged in the housing (101). Each time the chain (303) moves in a cycle, the incomplete gear (401) rotates one circle. When the connecting frame (304) retreats along the straight line segment, the incomplete gear (401) can mesh with the indexing gear (402) and drive the turntable (103) to index.

2. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: An opening and closing gear (206) is fixed to the input shaft of the valve (203), the opening and closing gear (206) is meshed and connected to an opening and closing rack (207), and the opening and closing rack (207) is fixed to the slider (204).

3. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: A pressure cover (108) is slidably provided in the funnel (102), and the pressure cover (108) is rotatably provided on the output end of an electric push rod (109), and the electric push rod (109) is fixed outside the housing (101).

4. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: The indexing gear (402) is coaxially fixed with a spline shaft (110), the turntable (103) is spline-connected to the spline shaft (110), the front end of the spline shaft (110) is threadedly connected to a nut (111), and the rear end of the spline shaft (110) is fixed with a step (112), and the nut (111) can press the turntable (103) against the step (112).

5. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: A positioning wheel (403) is coaxially fixed to the indexing gear (402), a plurality of positioning slots (404) are provided on the positioning wheel (403), a pin (406) is slidably provided in the housing (101), a locking return spring (407) is provided in the housing (101), and the locking return spring (407) keeps the pin (406) inserted into the positioning slot (404) in a free state; A cam (408) is coaxially fixed on the incomplete gear (401). The profile of the cam (408) includes a near-rest profile (409), a lift profile (410), a far-rest profile (411), and a return profile (412). A push rod (413) is slidably provided in the housing (101). The push rod (413) can contact the cam (408). The descent of the push rod (413) can drive the pin (406) to descend, and the rise of the push rod (413) can drive the pin (406) to rise. When the guide rod (305) of the chain intermittent mechanism (300) retreats along the bottom of the funnel (102), the distal rest profile (411) of the cam (408) contacts the push rod (413), so that the pin (406) is completely separated from the positioning groove (404).

6. The device for monitoring water quality of ecological lakes according to claim 5, characterized in that: A connecting plate (414) is fixed under the top rod (413), a pin (406) is fixed on the connecting plate (414), the connecting plate (414) is slidably arranged in the housing (101), a locking return spring (407) is arranged between the connecting plate (414) and the housing (101), and the locking return spring (407) keeps the connecting plate (414) rising in a free state.

7. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: A worm (415) is coaxially fixed to the front sprocket (301), the worm (415) is meshedly connected to a worm wheel (416), the worm wheel (416) is rotatably arranged in the housing (101), an input sprocket (417) is coaxially fixed to the worm wheel (416), the input sprocket (417) is rotatably arranged in the housing (101), the input sprocket (417) is connected to an output sprocket (418) via a chain (303), and the output sprocket (418) is coaxially fixed to the incomplete gear (401).

8. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: The inlet pipe (202) is threadedly connected to the bottle body (201).

9. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: A conductivity detector (113) is fixed in the housing (101), and a probe of the conductivity detector (113) extends out of the housing (101).

10. The device for monitoring water quality of ecological lakes according to claim 1, characterized in that: A ball spring pin (114) is fixed to the funnel (102). In a free state, the ball pin of the ball spring pin (114) extends to prevent the sampling bottle (200) at the bottom of the funnel (102) from moving forward, and can prevent the sampling bottle (200) in the turntable (103) aligned with the bottom of the funnel (102) from retreating to the bottom of the funnel (102).

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