A water quality monitoring device to optimize urban water supply

Abstract

The present invention discloses a water quality monitoring device for optimizing urban water supply. A water sample bottle is carried by a trolley and a feeding turntable, which is convenient for the movement of an operator and the storage of the water sample bottle. The cooperation of a funnel, a conductivity sensor and a sample placing valve can detect the conductivity before collecting the water sample, thereby reducing manual operation. A stirring mechanism is used to replace the operator to oscillate the water sample, thereby reducing manual operation. A through slot is provided on the feeding turntable, an upper shading plate is slidably arranged at the entrance of a turbidity meter, and a lower shading plate is slidably arranged at the exit. The upper shading plate is opened to allow the water sample bottle to fall from the feeding turntable into the turbidity meter, and the lower shading plate is opened to allow the water sample bottle to fall from the turbidity meter into the material receiving mechanism, thereby realizing automatic taking and placing of the water sample bottle, improving the automation degree of turbidity measurement, reducing manual operation, and completing the turbidity measurement work during the movement of the trolley, thereby reducing the total time of turbidity measurement and improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of water quality monitoring, and in particular to a water quality monitoring device for optimizing urban water supply. Background Art

[0002] Urban water supply quality monitoring is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants and their changing trends, and evaluating water quality conditions. Through water quality monitoring, hidden dangers in the water supply system can be discovered in a timely manner and the quality of water supply can be improved.

[0003] The existing urban water supply water quality monitoring method mainly requires the operator to collect water samples at the sampling valve and collect the water samples into a water sample bottle. One monitoring work requires carrying multiple water sample bottles to multiple locations to collect water samples, and then taking multiple water sample bottles back to the laboratory to measure various parameters. There is a disadvantage that it is inconvenient for the operator to carry water sample bottles. In addition, in the water sample turbidity measurement, the operator first shakes the water sample in the water sample bottle to shake the water sample, then puts the water sample bottle into the turbidity meter and closes the light shielding cover. After waiting for a period of time, the turbidity meter can give the result. The operator needs to repeatedly shake the water sample and take the water sample bottle from the turbidity meter, which has the disadvantages of cumbersome operation and long measurement time.

[0004] Therefore, it is necessary to design a water quality monitoring device that is easy to carry a water sample bottle and can automatically complete the turbidity measurement of the water sample. Summary of the invention

[0005] The object of the present invention is to provide a water quality monitoring device for optimizing urban water supply to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water quality monitoring device for optimizing urban water supply, comprising a cart, a funnel and a turbidity meter, wherein an upper guard plate, a middle guard plate and a bottom plate are installed in the cart from top to bottom, the funnel is fixed on the upper guard plate, the funnel can receive water samples, a conductivity sensor is fixed in the funnel, a sample placing valve is installed at the bottom of the funnel, and a stirring mechanism is also provided in the funnel;

[0007] A feeding turntable is rotatably arranged on the middle guard plate, and a plurality of through slots are provided on the feeding turntable, and a water sample bottle is slidably arranged in the through slots. A point on the plane where the middle guard plate is located directly below the sample valve is called the sample point. A turbidity meter is fixed under the middle guard plate, and the entrance of the turbidity meter is aligned with the sample point. An upper shading plate is slidably arranged at the entrance of the turbidity meter. When the upper shading plate is opened, the water sample bottle falls from the feeding turntable into the turbidity meter.

[0008] A lower shading plate is slidably provided at the outlet of the turbidity meter, and a material receiving mechanism is rotatably provided on the bottom plate. The material receiving mechanism can accommodate multiple water sample bottles. When the lower shading plate is opened, the water sample bottles fall from the turbidity meter into the material receiving mechanism.

[0009] A controller is fixed in the trolley, and the controller is electrically connected to the sample placing valve, the conductivity sensor and the turbidity meter.

[0010] Preferably, a blow-drying hole is opened on the funnel, and the blow-drying hole is connected to an air compressor through a hose. The air compressor is installed in a trolley. A closed motor is fixed on the outer wall of the funnel, and a closed cover is fixed on the output shaft of the closed motor. The closed cover can cover the funnel entrance.

[0011] Preferably, the stirring mechanism includes stirring blades, an outer gear ring and a stirring motor. The outer gear ring is rotatably arranged on the top of the funnel, and the outer gear ring is meshed with a stirring gear. The stirring gear is driven by the stirring motor. The stirring motor is fixed on the outer wall of the funnel, and the stirring blades are fixed on the outer gear ring.

[0012] Preferably, the material receiving mechanism includes a material receiving turntable, a transmission mechanism, a groove wheel and a dial. The material receiving turntable has the same size as the material feeding turntable. Both the material receiving turntable and the material feeding turntable are evenly provided with n through grooves. The material receiving turntable is rotatably arranged on the bottom plate, and the groove wheel is rotatably arranged on the bottom plate. The groove wheel has z divisions, and the groove wheel drives the material receiving turntable and the feeding turntable to rotate synchronously through a transmission mechanism with a transmission ratio of i=n / z. The groove wheel is intermittently driven by the dial. The dial has a round pin, and the dial is rotatably arranged on the bottom plate. The dial can also drive the lower light shielding plate through a reciprocating mechanism. While driving the material receiving turntable to rotate, the dial drives the lower light shielding plate to close through the reciprocating mechanism.

[0013] Preferably, the reciprocating mechanism includes a crank, a reciprocating roller and a moving cam, the crank has a length of L, the input end of the crank is coaxially fixed with the dial, the output end of the crank is rotatably provided with the reciprocating roller, the moving cam is slidably provided on the cam bracket, a lower shading plate is fixed on the moving cam, the cam bracket is fixed on the bottom plate, an arc groove is provided on the moving cam, the arc groove radius is L, straight grooves are connected at both ends of the arc groove, the reciprocating roller can roll in the arc groove and the straight groove, and when the reciprocating roller rolls in the arc groove and the crank is on the inner side of the arc groove, the lower shading plate opens and remains stationary.

[0014] Preferably, the transmission mechanism includes two inner gear rings, two turntable gears and a chain. An inner gear ring is fixed in the receiving turntable and the feeding turntable respectively. Each inner gear ring is meshed and connected with the turntable gear respectively. The two turntable gears are fixed on a gear shaft. The gear shaft is rotatably arranged on the bottom plate. An output sprocket is fixed on the gear shaft. The output sprocket is connected to the input sprocket through the chain. The input sprocket is coaxially fixed with the groove wheel.

[0015] Preferably, a bottle cap is threadedly connected to the water sample bottle, and the thread lead of the bottle cap is p. A swing rod is rotatably arranged on the middle guard plate, and the swing rod can swing to the sampling point. A screw cap bracket is lifted and lowered at the output end of the swing rod, and a screw cap air claw is installed on the screw cap bracket. The screw cap air claw is rotated by a screw cap motor, and the screw cap motor is fixed on the screw cap bracket. A clamping mechanism is arranged on the middle guard plate, and the clamping mechanism can clamp the water sample bottle at the sampling point, and the screw cap air claw can clamp the bottle cap. When the screw cap motor rotates the screw cap air claw at an angular velocity ω and then rotates the bottle cap, the screw cap bracket rises and falls at a speed ωp and can thus unscrew or tighten the bottle cap.

[0016] Preferably, a cylindrical cam is rotatably provided on the output end of the swing arm, a lifting roller is rotatably provided on the screw cap bracket, a lifting cam groove is provided on the cylindrical cam, and the lifting roller can roll in the lifting cam groove, and the lifting cam groove comprises a fast descending groove, a spiral ascending groove, a slow ascending groove, a slow descending groove, a spiral descending groove and a fast ascending groove. When the lifting roller is in the fast descending groove, the screw capping air claw opens and moves to the bottom of the bottle cap, when the lifting roller is in the spiral ascending groove, the screw capping bracket rises at a constant speed, and the screw capping air claw unscrews the bottle cap, when the lifting roller is in the slow ascending groove, the screw capping air claw clamps the bottle cap away from the setting out point, when the lifting roller is in the slow descending groove, the screw capping air claw clamps the bottle cap and moves it to the top of the water sample bottle, when the lifting roller is in the spiral descending groove, the screw capping bracket descends at a constant speed, and the screw capping air claw tightens the bottle cap, and when the lifting roller is in the fast ascending groove, the screw capping air claw opens and moves away from the setting out point.

[0017] Preferably, a swing roller is rotatably provided at the tail end of the swing rod, a disc cam is rotatably provided on the middle guard plate, a swing cam groove is provided on the disc cam, the swing roller can roll in the swing cam groove, the swing cam groove includes a near rest groove, a push groove, a far rest groove and a return groove, when the swing roller is in the near rest groove, the swing rod is stationary at the extreme position away from the lofting point, when the swing roller is in the push groove, the swing rod moves toward the lofting point, when the swing roller is in the far rest groove, the swing rod is stationary at the lofting point, and when the swing roller is in the return groove, the swing rod is away from the lofting point;

[0018] The disc cam is coaxially fixed with an input pulley A, which drives an output pulley A through a synchronous belt B. The output pulley A is rotatably arranged on the rotation center of a swing rod, and the swing rod is provided with an intermittent mechanism. The output pulley A can drive the intermittent mechanism, and the intermittent mechanism can drive the cylindrical cam. When the swing roller is in the near-rest groove, the intermittent mechanism stops and the cylindrical cam is stationary.

[0019] Preferably, the intermittent mechanism includes an incomplete gear, a transmission gear, a convex arc block and a concave arc block, the A input pulley and the A output pulley have the same diameter, the A output pulley is coaxially fixed with the incomplete gear, the center angle of the toothless part of the incomplete gear is equal to the near-rest angle of the disc cam, the incomplete gear rotates twice to drive the transmission gear to rotate once, the incomplete gear can be meshed and connected to the transmission gear, the transmission gear is rotatably arranged on the swing rod, the transmission gear is coaxially fixed with the B input pulley, the B input pulley drives the B output pulley through the C synchronous belt, the B input pulley and the B output pulley have the same diameter, and the B output pulley and the cylindrical cam are coaxially fixed;

[0020] The incomplete gear is coaxially fixed with the convex arc block, the convex arc block overlaps with the missing teeth of the incomplete gear, and the transmission gear is coaxially fixed with the concave arc block, the concave arc block is symmetrically provided with two concave arcs, and the radius of the concave arc is equal to the radius of the convex arc block;

[0021] The cam rotation angles corresponding to the fast descending groove and the slow descending groove of the cylindrical cam are equal, and are both equal to half of the cam rotation angle corresponding to the push-stroke groove of the disc cam. The cam rotation angles corresponding to the spiral rising groove and the spiral descending groove of the cylindrical cam are equal, and are both equal to half of the cam rotation angle corresponding to the far rest groove of the disc cam. The cam rotation angles corresponding to the slow rising groove and the fast rising groove of the cylindrical cam are equal, and are both equal to half of the cam rotation angle corresponding to the return groove of the disc cam.

[0022] Compared with the prior art, the invention has the following beneficial effects: the water sample bottle is carried by the trolley and the feeding turntable, which facilitates the operation of the operator and facilitates carrying and storing the water sample bottle;

[0023] Through the cooperation of the funnel, conductivity sensor and sample placing valve, the conductivity can be tested before collecting the water sample, which reduces manual operation. The stirring mechanism replaces the operator to shake the water sample, which reduces manual operation.

[0024] A through slot is provided on the feeding turntable, an upper shading plate is slidably arranged at the entrance of the turbidity meter, and a lower shading plate is slidably arranged at the exit. The upper shading plate is opened to allow the water sample bottle to fall from the feeding turntable into the turbidity meter, and the lower shading plate is opened to allow the water sample bottle to fall from the turbidity meter into the receiving mechanism, thereby realizing automatic taking and placing of the water sample bottle, improving the automation degree of turbidity measurement, reducing manual operation, and completing turbidity measurement work while the trolley is moving, thereby reducing the total time of water quality measurement and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the cart and sampling valve of the present invention;

[0026] Figure 2 It is an axonometric diagram of the main internal structure of the present invention;

[0027] Figure 3 is a cross-sectional view of the funnel of the present invention;

[0028] Figure 4 It is an axonometric diagram of the feeding turntable, turbidity meter and material receiving mechanism of the present invention;

[0029] Figure 5 It is a top view of the feeding turntable, turbidity meter and material receiving mechanism of the present invention;

[0030] Figure 6 For the present invention Figure 5 A local enlarged view of point A;

[0031] Figure 7 It is an axonometric view of the main internal structure of the present invention from another angle;

[0032] Figure 8 A top view of the swing lever, the disc cam and the feeding turntable of the present invention;

[0033] Fig. 9 It is a schematic diagram of the swing rod, the disc cam and the capping bracket of the present invention, wherein the capping bracket is moved out of the swing rod;

[0034] Fig.10 It is an expanded view of the cylindrical cam of the present invention;

[0035] Fig.11 For the present invention Fig. 9 A partial enlarged view of point B;

[0036] Fig.12 It is an axonometric diagram of the main structure of the bottom plate part of the present invention;

[0037] Fig.13 It is an axonometric diagram of the main structure of the middle guard plate part of the present invention;

[0038] Fig.14 Another angled axonometric view of the main internal structure of the present invention;

[0039] Fig.15 is a three-dimensional cross-sectional view of the swing lever of the present invention;

[0040] Fig.16 It is an axonometric view of the reciprocating mechanism of the present invention when the lower shading plate is opened.

[0041] In the figure: 101, trolley, 102, upper guard plate, 103, middle guard plate, 104, bottom plate, 105, funnel, 106, conductivity sensor, 107, sample valve, 108, turbidity meter, 109, upper shading plate, 110, feed turntable, 111, water sample bottle, 112, lower shading plate, 113, drying hole, 114, closing motor, 115, closing cover, 116, swing rod, 117, electric push rod, 118, friction Wiping pad, 119, sampling valve, 120, cylinder, 121, support column, 200, stirring mechanism, 201, stirring blade, 202, outer gear ring, 203, stirring motor, 204, stirring gear, 300, receiving mechanism, 301, receiving turntable, 302, groove wheel, 303, dial, 304, indexing motor, 305, A synchronous belt mechanism, 400, reciprocating mechanism, 401, crank, 402, moving cam, 403 , cam bracket, 404, arc groove, 405, straight groove, 406, reciprocating roller, 500, transmission mechanism, 501, inner ring gear, 502, turntable gear, 503, chain, 504, gear shaft, 601, screw cap bracket, 602, screw cap air claw, 603, screw cap motor, 604, lifting track, 605, lifting roller, 701, cylindrical cam, 702, fast descending groove, 703, spiral ascending groove, 704, slow Slow rising groove, 705, slow descending groove, 706, spiral descending groove, 707, fast rising groove, 801, disc cam, 802, near rest groove, 803, push stroke groove, 804, return stroke groove, 805, far rest groove, 806, B synchronous belt, 807, swing motor, 900, intermittent mechanism, 901, incomplete gear, 902, transmission gear, 903, C synchronous belt, 904, convex arc block, 905, concave arc block. DETAILED DESCRIPTION

[0042] 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.

[0043] The present invention provides a technical solution: Figure 1-4 As shown, a water quality monitoring device for optimizing urban water supply includes a cart 101, a funnel 105 and a turbidity meter 108. An upper guard plate 102, a middle guard plate 103 and a bottom plate 104 are installed in the cart 101 from top to bottom. The funnel 105 is fixed on the upper guard plate 102, and the funnel 105 can receive water samples. A conductivity sensor 106 is fixed in the funnel 105, a sample placing valve 107 is installed at the bottom of the funnel 105, and a stirring mechanism 200 is also provided in the funnel 105.

[0044] The operator first inserts the hose on the sampling valve 119 into the funnel 105, opens the sampling valve 119 and adds the water sample into the funnel 105. Through the cooperation of the funnel 105, the conductivity sensor 106 and the sampling valve 107, the conductivity can be detected before collecting the water sample, which reduces manual operation. The stirring mechanism 200 replaces the operator to shake the water sample, which reduces manual operation.

[0045] like Figure 2 , 4 As shown, a feeding turntable 110 is rotatably provided on the middle guard plate 103, and a plurality of through slots are provided on the feeding turntable 110. A water sample bottle 111 is provided in the through slot to slide up and down, and the bottom of the water sample bottle 111 is in contact with the middle guard plate 103. A point on the plane where the middle guard plate 103 is located, which is located directly below the sample valve 107, is called the sample point. A turbidity meter 108 is fixed under the middle guard plate 103. The turbidity meter is a commonly used measuring device that measures turbidity by a scattering method. The entrance of the turbidity meter 108 is aligned with the sample point. An upper shading plate 109 is slidably provided at the entrance of the turbidity meter 108. The sliding slot of the upper shading plate 109 is provided on the middle guard plate 103. When the upper shading plate 109 is opened, the water sample bottle 111 falls into the turbidity meter 108 from the through slot of the feeding turntable 110.

[0046] In this embodiment, the upper shading plate 109 moves back and forth under the action of the cylinder 120, and the cylinder 120 is fixed on the middle guard plate 103.

[0047] After the funnel 105 is filled with water sample, the operator closes the sampling valve 119, removes the hose on the sampling valve 119 from the funnel 105, and then starts the stirring mechanism 200 to oscillate the water sample. After the oscillation is completed, the sampling valve 107 is opened, and the water sample is added to the water sample bottle 111 located at the sampling point. After the funnel 105 has put the water sample, the upper shading plate 109 is opened to allow the water sample bottle 111 located at the sampling point to fall into the turbidity meter 108 through the slot of the feed turntable 110, and then the upper shading plate 109 is closed, and the turbidity meter 108 measures the turbidity in the water sample bottle 111.

[0048] like Figure 2 , 4 As shown in FIG. 14 , a lower shading plate 112 is slidably provided at the outlet of the turbidity meter 108, and a material receiving mechanism 300 is rotatably provided on the bottom plate 104. The material receiving mechanism 300 can accommodate a plurality of water sample bottles 111. When the lower shading plate 112 is opened, the water sample bottles 111 fall from the turbidity meter 108 into the material receiving mechanism 300.

[0049] After the turbidity measurement is completed, the lower shading plate 112 is opened, and the water sample bottle 111 falls from the turbidity meter 108 into the material receiving mechanism 300, and then the lower shading plate 112 is closed, and a through slot is opened on the feeding turntable 110, and an upper shading plate 109 is slidably set at the entrance of the turbidity meter 108, and a lower shading plate 112 is slidably set at the exit, and the upper shading plate 109 is opened to make the water sample bottle 111 fall from the feeding turntable 110 into the turbidity meter 108, and the lower shading plate 112 is opened to make the water sample bottle 111 fall from the turbidity meter 108 into the material receiving mechanism 300, so that the water sample bottle 111 is automatically taken in and put out, which improves the automation degree of turbidity measurement, reduces manual operation, and can complete the turbidity measurement work during the movement of the trolley 101, thereby reducing the total time of water quality measurement and improving work efficiency.

[0050] A controller is fixed inside the trolley 101 , and the controller is electrically connected to the sample release valve 107 , the conductivity sensor 106 and the turbidity meter 108 , so as to facilitate the control of the sample release valve 107 and the transmission of the measurement results of the conductivity sensor 106 and the turbidity meter 108 .

[0051] like Figure 3 As shown, a blow-drying hole 113 is opened on the funnel 105, and the blow-drying hole 113 is connected to the air compressor through a hose. The air compressor is installed in the trolley 101, and a closed motor 114 is fixed to the outer wall of the funnel 105. A closed cover 115 is fixed to the output shaft of the closed motor 114, and the closed cover 115 can cover the entrance of the funnel 105.

[0052] After the funnel 105 is emptied of water samples, the closing cover 115 covers the funnel 105, and then the air compressor is started, and the compressed air dries the funnel 105 through the drying hole 113 to avoid mutual contamination between different water samples. The closing cover 115 can improve the sealing of the funnel 105 and improve the drying efficiency.

[0053] like Figure 3 As shown, the stirring mechanism 200 includes a stirring blade 201, an outer gear ring 202 and a stirring motor 203. The outer gear ring 202 is rotatably arranged on the top of the funnel 105. The outer gear ring 202 is meshedly connected with a stirring gear 204. The stirring gear 204 is driven by the stirring motor 203. The stirring motor 203 is fixed on the outer wall of the funnel 105. The stirring blade 201 is fixed on the outer gear ring 202.

[0054] like Figure 4 , 5As shown, the material receiving mechanism 300 includes a material receiving turntable 301, a transmission mechanism 500, a groove wheel 302 and a dial 303. The material receiving turntable 301 has the same size as the material feeding turntable 110. The material receiving turntable 301 and the material feeding turntable 110 are evenly provided with n through slots. The material receiving turntable 301 is rotatably arranged on the bottom plate 104. The groove wheel 302 is rotatably arranged on the bottom plate 104. The groove wheel 302 has z divisions. The groove wheel 302 is driven by a transmission mechanism with a transmission ratio i=n / z. The structure 500 drives the receiving turntable 301 and the feeding turntable 110 to rotate synchronously, and the groove wheel 302 is intermittently driven by the dial 303. The groove wheel 302 in this embodiment is locked by a concave arc, and the dial 303 has a round pin. The dial 303 is rotatably set on the bottom plate 104. The dial 303 can also drive the lower shading plate 112 through the reciprocating mechanism 400. While driving the receiving turntable 301 to rotate, the dial 303 drives the lower shading plate 112 to close through the reciprocating mechanism 400.

[0055] After the water sample bottle 111 completes the turbidity measurement work, the dial 303 first rotates a certain angle, and then drives the reciprocating mechanism 400 to open the lower shading plate 112 to make the water sample bottle 111 fall into the receiving turntable 301. At this time, the groove wheel 302 is stationary, and the dial 303 continues to rotate a certain angle, and the water sample bottle 111 completely falls into the receiving turntable 301. At this time, the lower shading plate 112 and the groove wheel 302 are both stationary, and the dial 303 continues to rotate a certain angle. At this time, the single round pin of the dial 303 drives the groove wheel 302 to rotate a division, and then drives the receiving turntable 301 and the feeding turntable 110 to rotate through the transmission mechanism 500, so that an empty through slot of the receiving turntable 301 rotates to the bottom of the turbidity meter 108, and a new water sample bottle 111 on the feeding turntable 110 rotates to the top of the turbidity meter 108. At the same time, the dial 303 drives the reciprocating mechanism 400 to close the lower shading plate 112.

[0056] Through the cooperation of the lower light shielding plate 112, the receiving turntable 301 and the feeding turntable 110, the turbidity meter 108 can automatically close the lower light shielding plate 112 and rotate the receiving turntable 301 and the feeding turntable 110 each time it releases a water sample bottle 111 inside, so as to facilitate the release of the water sample bottle 111 after the turbidity measurement and the rotation of the receiving turntable 301 and the feeding turntable 110.

[0057] In this embodiment, the dial 303 is driven by an indexing motor 304 , and the indexing motor 304 is fixed under the middle guard plate 103 . The indexing motor 304 drives the dial 303 through an A synchronous belt mechanism 305 .

[0058] like Figure 5 , 6As shown in Figures 7, 12, and 16, the reciprocating mechanism 400 includes a crank 401, a reciprocating roller 406 and a moving cam 402, the crank 401 having a length of L, the input end of the crank 401 being coaxially fixed with the dial 303, the output end of the crank 401 being rotatably provided with the reciprocating roller 406, the moving cam 402 being slidably provided on a cam bracket 403, a lower shading plate 112 being fixed on the moving cam 402, the cam bracket 403 being fixed on the bottom plate 104, an arc groove 404 being provided on the moving cam 402, the arc groove 404 having a radius of L, straight grooves 405 being connected at both ends of the arc groove 404, the reciprocating roller 406 being able to roll in the arc groove 404 and the straight groove 405, the lower shading plate 112 being opened and stationary while the reciprocating roller 406 is rolling in the arc groove 404 and the crank 401 is on the inner side of the arc groove 404.

[0059] The dial 303 drives the crank 401 to rotate, and the crank 401 starts to rotate from the outside of the arc groove 404, thereby driving the moving cam 402 to move, thereby driving the lower light shielding plate 112 to open, and the crank 401 continues to rotate. When the reciprocating roller 406 rolls in the arc groove 404 and the crank 401 is on the inside of the arc groove 404, since the length of the crank 401 is equal to the radius of the arc groove 404, the rotation of the crank 401 cannot drive the moving cam 402 to move, and the lower light shielding plate 112 remains open, allowing the water sample bottle 111 to have enough time to fall. When the reciprocating roller 406 leaves the arc groove 404 and enters the straight groove 405, the crank 401 continues to rotate, thereby driving the moving cam 402 to move, thereby driving the lower light shielding plate 112 to close. During this period, the dial 303 drives the groove wheel 302 to rotate, thereby driving the receiving turntable 301 and the feeding turntable 110 to rotate.

[0060] like Figure 7 As shown, the transmission mechanism 500 includes two inner gear rings 501, two turntable gears 502 and a chain 503. An inner gear ring 501 is fixed in the receiving turntable 301 and the feeding turntable 110 respectively. Each inner gear ring 501 is meshed with a turntable gear 502. The two turntable gears 502 are fixed on a gear shaft 504. The gear shaft 504 is rotatably set on the bottom plate 104. An output sprocket is fixed on the gear shaft 504. The output sprocket is connected to the input sprocket through the chain 503. The input sprocket is coaxially fixed with the groove wheel 302.

[0061] The groove wheel 302 drives the two turntable gears 502 to rotate through the chain 503, thereby driving the inner gear ring 501 to rotate, thereby driving the receiving turntable 301 and the feeding turntable 110 to rotate.

[0062] like Figure 8 , 9As shown in , 13 and 15, a bottle cap is threadedly connected to the water sample bottle 111, and the thread lead of the bottle cap is p. A swing rod 116 is rotatably arranged on the middle guard plate 103. The specific structure in this embodiment is that the swing rod 116 is rotatably arranged on the support column 121, and the support column 121 is fixed on the middle guard plate 103. The swing rod 116 can swing to the sampling point, and a screw cap bracket 601 is lifted and lowered at the output end of the swing rod 116. The specific structure in this embodiment is that a lifting track 604 is fixed to the output end of the swing rod 116, and a screw cap bracket 601 is slidably arranged on the lifting track 604. A capping claw 602 is installed on the capping bracket 601. The capping claw is a commonly used clamping device that realizes the clamping function through compressed air and has the ability to rotate infinitely. The capping claw 602 is rotated by a capping motor 603. The capping motor 603 is fixed on the capping bracket 601. A clamping mechanism is arranged on the middle guard plate 103. The clamping mechanism can clamp the water sample bottle 111 at the sampling point. The capping claw 602 can clamp the bottle cap. When the capping motor 603 rotates the capping claw 602 at an angular velocity ω and then rotates the bottle cap, the capping bracket 601 rises and falls at a speed ωp to unscrew or tighten the bottle cap.

[0063] Before adding water sample to the water sample bottle 111, the swing arm 116 first swings to the sampling point, the capping claw 602 clamps the bottle cap, and the clamping mechanism presses the water sample bottle 111, and then the capping motor 603 rotates the capping claw 602 at an angular velocity ω to cooperate with the capping bracket 601 to rise at a speed ωp to unscrew the bottle cap, and then the swing arm 116 swings in the opposite direction, thereby driving the bottle cap away from the sampling point. After the water sample bottle 111 is filled with water sample, the swing arm 116 swings to the sampling point again, and the capping claw 602 moves the bottle cap to the top of the water sample bottle 111, and then the capping motor 603 rotates the capping claw 602 in the opposite direction at an angular velocity ω to cooperate with the capping bracket 601 to descend at a speed ωp to tighten the bottle cap, and then the swing arm 116 swings in the opposite direction away from the sampling point.

[0064] Through the cooperation of the swing rod 116, the screw cap bracket 601, the screw cap air claw 602, and the screw cap motor 603, the bottle cap can be automatically unscrewed before adding the water sample, and the bottle cap can be automatically tightened after filling the water sample, which is convenient for using the water sample bottle 111 with the bottle cap and storing the water sample.

[0065] In this embodiment, the clamping mechanism includes an electric push rod 117 and a friction pad 118. The electric push rod 117 is fixed on the middle guard plate 103. The friction pad 118 is fixed on the output end of the electric push rod 117. The electric push rod 117 presses the water sample bottle 111 on the through groove through the friction pad 118 to prevent the water sample bottle 111 from rotating.

[0066] like Fig. 9 , 1015, a cylindrical cam 701 is rotatably provided on the output end of the swing rod 116, and a lifting roller 605 is rotatably provided on the screw cap bracket 601. A lifting cam groove is provided on the cylindrical cam 701, and the lifting roller 605 can roll in the lifting cam groove. The lifting cam groove includes a fast descending groove 702, a spiral ascending groove 703, a slow ascending groove 704, a slow descending groove 705, a spiral descending groove 706 and a fast ascending groove 707. When the lifting roller 605 is in the fast descending groove 702, the screw cap air claw 602 opens and moves to the bottom of the bottle cap, and the lifting roller 60 5 is in the spiral ascending groove 703, the screw capping bracket 601 rises at a constant speed, and the screw capping claw 602 unscrews the bottle cap. When the lifting roller 605 is in the slow ascending groove 704, the screw capping claw 602 clamps the bottle cap away from the sample setting point. When the lifting roller 605 is in the slow descending groove 705, the screw capping claw 602 clamps the bottle cap and moves to the top of the water sample bottle 111. When the lifting roller 605 is in the spiral descending groove 706, the screw capping bracket 601 descends at a constant speed, and the screw capping claw 602 tightens the bottle cap. When the lifting roller 605 is in the fast ascending groove 707, the screw capping claw 602 opens and moves away from the sample setting point.

[0067] By rotating the cylindrical cam 701 , the lifting cam groove is used to control the regular lifting of the rotary cover bracket 601 , so as to facilitate the control and driving of the rotary cover bracket 601 .

[0068] like Figure 8 As shown, a swing roller is rotatably provided at the tail end of the swing rod 116, a disc cam 801 is rotatably provided on the middle guard plate 103, a swing cam groove is provided on the disc cam 801, and the swing roller can roll in the swing cam groove, the swing cam groove includes a near rest groove 802, a push groove 803, a far rest groove 805 and a return groove 804, when the swing roller is in the near rest groove 802, the swing rod 116 is stationary at the extreme position away from the layout point, when the swing roller is in the push groove 803, the swing rod 116 moves toward the layout point, when the swing roller is in the far rest groove 805, the swing rod 116 is stationary at the layout point, and when the swing roller is in the return groove 804, the swing rod 116 is away from the layout point.

[0069] like Fig. 9 As shown, the disc cam 801 is coaxially fixed with an input pulley A, and the input pulley A drives the output pulley A through the B synchronous belt 806. The output pulley A is rotatably arranged on the rotation center of the swing rod 116. In this example, the specific structure is that the output pulley A is rotatably arranged on the support column 121, and the swing rod 116 is provided with an intermittent mechanism 900. The output pulley A can drive the intermittent mechanism 900, and the intermittent mechanism 900 can drive the cylindrical cam 701. When the swing roller is in the near-rest groove 802, the intermittent mechanism 900 stops and the cylindrical cam 701 is stationary.

[0070] The rotation of the disc cam 801 can drive the swing rod 116 to swing back and forth and stop at the extreme positions on both sides, which is convenient for controlling and driving the swing rod 116. The disc cam 801 can drive the intermittent mechanism 900 through the B synchronous belt 806, and then intermittently drive the cylindrical cam 701, which is convenient for driving and controlling the cylindrical cam 701.

[0071] In this embodiment, the disc cam 801 is driven by a swing motor 807 , and the swing motor 807 is fixed on the middle guard plate 103 .

[0072] like Fig. 9 , 11 As shown, the intermittent mechanism 900 includes an incomplete gear 901, a transmission gear 902, a convex arc block 904 and a concave arc block 905, the diameters of the A input pulley and the A output pulley are equal, the A output pulley is coaxially fixed with the incomplete gear 901, the central angle of the toothed portion of the incomplete gear 901 is equal to the near-rest angle of the disc cam 801, and the incomplete gear 901 can drive the transmission gear 902 to rotate one circle after two rotations. The specific structure in this example is that the arc length of the gear portion of the incomplete gear 901 is equal to half the circumference of the transmission gear 902, the incomplete gear 901 can be meshed and connected to the transmission gear 902, the transmission gear 902 is rotatably set on the swing rod 116, the transmission gear 902 is coaxially fixed with the B input pulley, the B input pulley drives the B output pulley through the C synchronous belt 903, the B input pulley and the B output pulley have equal diameters, and the B output pulley and the cylindrical cam 701 are coaxially fixed.

[0073] The convex arc block 904 is coaxially fixed to the incomplete gear 901 , and the convex arc block 904 overlaps with the missing teeth of the incomplete gear 901 . The transmission gear 902 is coaxially fixed to the concave arc block 905 , and the concave arc block 905 is symmetrically provided with two concave arcs, and the radius of the concave arc is equal to the radius of the convex arc block 904 .

[0074] When the swing rod 116 is near rest, the incomplete gear 901 is disengaged from the transmission gear 902, the convex arc block 904 locks the concave arc block 905, and the cylindrical cam 701 is stationary. After the swing rod 116 leaves the near rest state, the incomplete gear 901 is engaged with the transmission gear 902, and then the cylindrical cam 701 is driven to rotate through the C synchronous belt 903.

[0075] The cam rotation angles corresponding to the fast descending groove 702 and the slow descending groove 705 of the cylindrical cam 701 are equal, and are both equal to half of the cam rotation angle corresponding to the push groove 803 of the disc cam 801; the cam rotation angles corresponding to the spiral rising groove 703 and the spiral descending groove 706 of the cylindrical cam 701 are equal, and are both equal to half of the cam rotation angle corresponding to the far rest groove 805 of the disc cam 801; the cam rotation angles corresponding to the slow rising groove 704 and the fast rising groove 707 of the cylindrical cam 701 are equal, and are both equal to half of the cam rotation angle corresponding to the return groove 804 of the disc cam 801.

[0076] When unscrewing the bottle cap, the disc cam 801 rotates, the swing rod 116 enters the push stage, the disc cam 801 drives the intermittent mechanism 900 through the B synchronous belt 806, and then drives the cylindrical cam 701 to rotate, the lifting roller 605 is in the fast descending groove 702, thereby driving the screw cap bracket 601 to descend rapidly, and then the swing rod 116 enters the far rest stage, the cylindrical cam 701 continues to rotate, the lifting roller 605 is in the spiral ascending groove 703, the screw cap bracket 601 rises at a constant speed, the screw cap air claw 602 unscrews the bottle cap, and then the swing rod 116 enters the return stage, the lifting roller 605 is in the slow ascending groove 704, the screw cap bracket 601 rises slowly, and then the swing rod 116 enters the near rest stage, the intermittent The mechanism 900 stops, the cylindrical cam 701 is stationary, and when the bottle cap is tightened, the disc cam 801 rotates, the swing rod 116 enters the push stage, and the disc cam 801 drives the intermittent mechanism 900 through the B synchronous belt 806, thereby driving the cylindrical cam 701 to rotate, and the lifting roller 605 is in the slow descending groove 705, thereby driving the screw cap bracket 601 to slowly descend, and then the swing rod 116 enters the far rest stage, the cylindrical cam 701 continues to rotate, the lifting roller 605 is in the spiral descending groove 706, the screw cap bracket 601 descends at a constant speed, the screw cap air claw 602 tightens the bottle cap, and then the swing rod 116 enters the return stage, the lifting roller 605 is in the fast ascending groove 707, and the screw cap bracket 601 rises rapidly.

[0077] Through the cooperation of the disc cam 801, the intermittent mechanism 900 and the cylindrical cam 701, the swing rod 116 can automatically unscrew or tighten the bottle cap during its reciprocating swing. After unscrewing the bottle cap, the swing rod 116 can move away from the setting out point, making it easy to drive and control the swing rod 116 and the cylindrical cam 701.

[0078] Working process: The operator first inserts the hose on the sampling valve 119 into the funnel 105, opens the sampling valve 119 and adds the water sample into the funnel 105. Through the cooperation of the funnel 105, the conductivity sensor 106 and the sample placing valve 107, the conductivity can be detected before collecting the water sample.

[0079] During this period, the clamping mechanism clamps the water sample bottle 111, and the swing rod 116 swings to the sampling point and unscrews the bottle cap, and then swings in the opposite direction and drives the bottle cap away from the sampling point;

[0080] After the funnel 105 is filled with water sample, the operator closes the sampling valve 119, removes the hose on the sampling valve 119 from the funnel 105, and then starts the stirring mechanism 200 to shake the water sample. After the shaking work is completed, the sample valve 107 is opened and the water sample is added to the water sample bottle 111;

[0081] After the funnel 105 has put the water sample, the swing rod 116 swings to the sampling point and tightens the bottle cap, and then swings in the opposite direction away from the sampling point;

[0082] Then, the pressing mechanism releases the water sample bottle 111, and the upper shading plate 109 opens to allow the water sample bottle 111 to fall from the feeding turntable 110 into the turbidity meter 108, and then the upper shading plate 109 closes, and the turbidity meter 108 measures the turbidity in the water sample bottle 111;

[0083] After the turbidity measurement is completed, the lower shading plate 112 is opened, and the water sample bottle 111 falls from the turbidity meter 108 into the receiving turntable 301, and then the lower shading plate 112 is closed and drives the receiving turntable 301 and the feeding turntable 110 to rotate;

[0084] After the funnel 105 is emptied of the water sample, the closing cover 115 covers the funnel 105 , and compressed air blows the funnel 105 dry through the blow-drying hole 113 .

[0085] 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 quality monitoring device for optimizing urban water supply, characterized in that: The invention comprises a trolley (101), a funnel (105) and a turbidity meter (108); an upper guard plate (102), a middle guard plate (103) and a bottom plate (104) are installed in the trolley (101) from top to bottom; the funnel (105) is fixed on the upper guard plate (102); the funnel (105) is capable of receiving a water sample; a conductivity sensor (106) is fixed in the funnel (105); a sample placing valve (107) is installed at the bottom of the funnel (105); and a stirring mechanism (200) is also provided in the funnel (105); A feeding turntable (110) is rotatably arranged on the middle guard plate (103), and a plurality of through slots are provided on the feeding turntable (110). A water sample bottle (111) is slidably arranged in the through slots. The bottom of the water sample bottle (111) contacts the middle guard plate (103). A point on the plane where the middle guard plate (103) is located directly below the sample valve (107) is called a sample point. A turbidity meter (108) is fixed under the middle guard plate (103). The entrance of the turbidity meter (108) is aligned with the sample point. An upper shading plate (109) is slidably arranged at the entrance of the turbidity meter (108). When the upper shading plate (109) is opened, the water sample bottle (111) falls from the feeding turntable (110) into the turbidity meter (108). A lower shading plate (112) is slidably provided at the outlet of the turbidity meter (108), and a material receiving mechanism (300) is rotatably provided on the bottom plate (104). The material receiving mechanism (300) can accommodate a plurality of water sample bottles (111). When the lower shading plate (112) is opened, the water sample bottles (111) fall from the turbidity meter (108) into the material receiving mechanism (300); A controller is fixed inside the trolley (101), and the controller is electrically connected to the sample placing valve (107), the conductivity sensor (106) and the turbidity meter (108); The material receiving mechanism (300) comprises a material receiving turntable (301), a transmission mechanism (500), a groove wheel (302) and a dial (303). The material receiving turntable (301) has the same size as the material feeding turntable (110). Both the material receiving turntable (301) and the material feeding turntable (110) are evenly provided with n through grooves. The material receiving turntable (301) is rotatably arranged on a bottom plate (104). The groove wheel (302) is rotatably arranged on the bottom plate (104). The groove wheel (302) has z divisions. The groove wheel (302) is driven by a transmission ratio i. =n / z transmission mechanism (500) drives the receiving turntable (301) and the feeding turntable (110) to rotate synchronously, and the groove wheel (302) is intermittently driven by the dial (303). The dial (303) has a round pin, and the dial (303) is rotatably arranged on the bottom plate (104). The dial (303) can also drive the lower shading plate (112) through the reciprocating mechanism (400). When the dial (303) drives the receiving turntable (301) to rotate, it drives the lower shading plate (112) to close through the reciprocating mechanism (400).

2. A water quality monitoring device for optimizing urban water supply according to claim 1, characterized in that: The funnel (105) is provided with a blow-drying hole (113), which is connected to an air compressor via a hose. The air compressor is installed in the trolley (101). A closed motor (114) is fixed on the outer wall of the funnel (105), and a closed cover (115) is fixed to the output shaft of the closed motor (114). The closed cover (115) can cover the entrance of the funnel (105).

3. The water quality monitoring device for optimizing urban water supply according to claim 1, characterized in that: The stirring mechanism (200) comprises a stirring blade (201), an outer gear ring (202) and a stirring motor (203); the outer gear ring (202) is rotatably arranged on the top of the funnel (105); the outer gear ring (202) is meshedly connected with a stirring gear (204); the stirring gear (204) is driven by the stirring motor (203); the stirring motor (203) is fixed on the outer wall of the funnel (105); and the stirring blade (201) is fixed on the outer gear ring (202).

4. The water quality monitoring device for optimizing urban water supply according to claim 1, characterized in that: The reciprocating mechanism (400) comprises a crank (401), a reciprocating roller (406) and a movable cam (402); the crank (401) has a length of L; the input end of the crank (401) is coaxially fixed with the dial (303); the output end of the crank (401) is rotatably provided with the reciprocating roller (406); the movable cam (402) is slidably provided on a cam bracket (403); a lower shading plate (112) is fixed on the movable cam (402); and the cam bracket (403) is provided with a plurality of movable cams. 03) is fixed on the bottom plate (104), and a circular arc groove (404) is opened on the movable cam (402), the radius of the circular arc groove (404) is L, and straight grooves (405) are connected at both ends of the circular arc groove (404), and the reciprocating roller (406) can roll in the circular arc groove (404) and the straight groove (405). When the reciprocating roller (406) rolls in the circular arc groove (404) and the crank (401) is on the inner side of the circular arc groove (404), the lower shading plate (112) is opened and stationary.

5. The water quality monitoring device for optimizing urban water supply according to claim 1, characterized in that: The transmission mechanism (500) comprises two inner gear rings (501), two turntable gears (502) and a chain (503); one inner gear ring (501) is fixed in each of the receiving turntable (301) and the feeding turntable (110); each inner gear ring (501) is meshedly connected with the turntable gear (502); the two turntable gears (502) are fixed on a gear shaft (504); the gear shaft (504) is rotatably arranged on a bottom plate (104); an output sprocket is fixed on the gear shaft (504); the output sprocket is connected to the input sprocket via the chain (503); the input sprocket is coaxially fixed with the groove wheel (302).

6. The water quality monitoring device for optimizing urban water supply according to claim 1, characterized in that: A bottle cap is threadedly connected to the water sample bottle (111), and the thread lead of the bottle cap is p. A swing rod (116) is rotatably arranged on the middle guard plate (103), and the swing rod (116) can swing to a setting point. A capping bracket (601) is lifted and lowered at the output end of the swing rod (116). A capping air claw (602) is installed on the capping bracket (601), and the capping air claw (602) is rotated by a capping motor (603). The capping motor (603) is fixed on the capping bracket (601). A clamping mechanism is arranged on the middle guard plate (103), and the clamping mechanism can clamp the water sample bottle (111) at the setting point. The capping air claw (602) can clamp the bottle cap. When the capping motor (603) rotates the capping air claw (602) at an angular velocity ω and then rotates the bottle cap, the capping bracket (601) is lifted and lowered at a velocity ωp and can thereby unscrew or tighten the bottle cap.

7. A water quality monitoring device for optimizing urban water supply according to claim 6, characterized in that: A cylindrical cam (701) is rotatably provided on the output end of the swing rod (116), and a lifting roller (605) is rotatably provided on the capping bracket (601). A lifting cam groove is provided on the cylindrical cam (701), and the lifting roller (605) can roll in the lifting cam groove. The lifting cam groove includes a fast descending groove (702), a spiral ascending groove (703), a slow ascending groove (704), a slow descending groove (705), a spiral descending groove (706), and a fast ascending groove (707). When the lifting roller (605) is in the fast descending groove (702), the capping air claw (602) opens and moves to the bottom of the bottle cap, and the lifting roller (605) is in the spiral ascending groove. When the screw capping bracket (601) is in the spiral ascending groove (703), the screw capping air claw (602) unscrews the bottle cap; when the lifting roller (605) is in the slow ascending groove (704), the screw capping air claw (602) clamps the bottle cap away from the setting out point; when the lifting roller (605) is in the slow descending groove (705), the screw capping air claw (602) clamps the bottle cap and moves to the top of the water sample bottle (111); when the lifting roller (605) is in the spiral descending groove (706), the screw capping bracket (601) descends at a constant speed, the screw capping air claw (602) tightens the bottle cap; when the lifting roller (605) is in the fast ascending groove (707), the screw capping air claw (602) opens and moves away from the setting out point.

8. The water quality monitoring device for optimizing urban water supply according to claim 7, characterized in that: A swing roller is rotatably provided at the tail end of the swing rod (116), a disc cam (801) is rotatably provided on the middle guard plate (103), a swing cam groove is provided on the disc cam (801), the swing roller can roll in the swing cam groove, the swing cam groove comprises a near rest groove (802), a push groove (803), a far rest groove (805) and a return groove (804), when the swing roller is in the near rest groove (802), the swing rod (116) is stationary at an extreme position away from the lofting point, when the swing roller is in the push groove (803), the swing rod (116) moves toward the lofting point, when the swing roller is in the far rest groove (805), the swing rod (116) is stationary at the lofting point, and when the swing roller is in the return groove (804), the swing rod (116) is away from the lofting point; An input pulley A is coaxially fixed to the disc cam (801). The input pulley A drives an output pulley A via a synchronous belt B (806). The output pulley A is rotatably arranged on the rotation center of a swing rod (116). The swing rod (116) is provided with an intermittent mechanism (900). The output pulley A can drive the intermittent mechanism (900). The intermittent mechanism (900) can drive the cylindrical cam (701). When the swing roller is in the near-rest groove (802), the intermittent mechanism (900) stops and the cylindrical cam (701) is stationary.

9. A water quality monitoring device for optimizing urban water supply according to claim 8, characterized in that: The intermittent mechanism (900) comprises an incomplete gear (901), a transmission gear (902), a convex arc block (904) and a concave arc block (905); the diameters of the input pulley A and the output pulley A are equal; the output pulley A is coaxially fixed with the incomplete gear (901); the central angle of the missing tooth portion of the incomplete gear (901) is equal to the near-rest angle of the disc cam (801); the incomplete gear (901) rotates twice to drive the transmission gear (902) to rotate once; the incomplete gear (901) can be meshed and connected to the transmission gear (902); the transmission gear (902) is rotatably arranged on a swing rod (116); the transmission gear (902) is coaxially fixed with the input pulley B; the input pulley B drives the output pulley B through a synchronous belt C (903); the input pulley B and the output pulley B have equal diameters; the output pulley B and the cylindrical cam (701) are coaxially fixed; The convex arc block (904) is coaxially fixed to the incomplete gear (901), the convex arc block (904) overlaps with the missing teeth of the incomplete gear (901), and the concave arc block (905) is coaxially fixed to the transmission gear (902), the concave arc block (905) is symmetrically provided with two concave arcs, and the radius of the concave arcs is equal to the radius of the convex arc block (904); The cam rotation angles corresponding to the fast descending groove (702) and the slow descending groove (705) of the cylindrical cam (701) are equal, and are both equal to half of the cam rotation angle corresponding to the push-stroke groove (803) of the disc cam (801); the cam rotation angles corresponding to the spiral ascending groove (703) and the spiral descending groove (706) of the cylindrical cam (701) are equal, and are both equal to half of the cam rotation angle corresponding to the far resting groove (805) of the disc cam (801); the cam rotation angles corresponding to the slow ascending groove (704) and the fast ascending groove (707) of the cylindrical cam (701) are equal, and are both equal to half of the cam rotation angle corresponding to the return groove (804) of the disc cam (801).

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