Water quality sampling device

Abstract

The invention provides a water quality sampling device which comprises a rack, a lifting ring is mounted at the top of the rack, a plurality of supporting rods are fixedly mounted in the rack, two fixing plates are fixed among the supporting rods, a cabin is fixed between the two fixing plates, a sensor assembly is mounted at the bottom of the rack, and a water quality sampling device is mounted at the bottom of the rack. The sensor assembly comprises a pH value sensor, a dissolved oxygen sensor, a water quality conductivity sensor, a turbidity sensor and a temperature-salinity-depth sensor, a cabin cover is installed at the top of the cabin body, an inner cavity is formed in the top of the cabin body, a locking mechanism is installed in the inner cavity, a plurality of water sampling bottles are installed on the outer surface of the circumference of the fixing plate, and a water outlet is formed in the outer surface of the fixing plate. The water sampling bottle comprises a bottle body and two plugging covers. Compared with the prior art, the automatic water sampling device has the following beneficial effects that through the design of the locking mechanism and the resetting mechanism, the automatic sampling action of a water sample can be realized, the operation process is simplified, the submerging water sampling depth is increased, and the purpose of automatic water sampling can be realized.

Description

Technical Field

[0001] This invention is a water quality sampling device, belonging to the technical field of water quality sampling equipment. Background Technology

[0002] When collecting water from deep water, the water collection device needs to be deployed to the target depth, and then a water sample is obtained using a water collection bottle. After the collection is completed, the water collection device will seal the water bottle to ensure that the collected water sample remains in its original state when it is returned to the ground or laboratory.

[0003] Currently, traditional water samplers are typically lowered to the target depth using a guide wire, and workers use a heavy hammer to knock the cover of the water sampler to close, thus achieving the purpose of water sampling. Regarding the above water sampling method, the inventor believes that the operation of closing the cover of the water sampler is cumbersome and affects the water sampling depth.

[0004] Therefore, how to solve the above problems and design a water quality sampling device that can automatically control the closing of the cover to simplify the operation process and increase the water sampling depth is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a water quality sampling device.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A water sampling device includes a frame with a lifting ring mounted on the top. Several support rods are fixedly mounted inside the frame, and two fixing plates are fixed between the support rods. A chamber is fixed between the two fixing plates. A sensor assembly is mounted on the bottom of the frame, including a pH sensor, a dissolved oxygen sensor, a water conductivity sensor, a turbidity sensor, and a temperature, salinity, and depth sensor. A cover is mounted on the top of the chamber, and an inner cavity is formed in the top of the chamber. A locking mechanism is installed inside the inner cavity. Several water sampling bottles are mounted on the outer circumference of the fixing plates. Each water sampling bottle includes a bottle body and two sealing caps. An inlet and an outlet are respectively formed at the center of the top and bottom of the bottle body. The two sealing caps are respectively hinged to the outlet and the inlet. A linkage rope connects the upper and lower sealing caps, and a retaining ring is fixed to the linkage rope. The retaining ring engages with the locking mechanism. A reset mechanism connected to the upper and lower sealing caps is fixed in the middle of the water sampling bottle.

[0007] Furthermore, the sealing cap includes an outer shell and an inner support member. The outer shell includes a cover body, and a limiting cover plate is fixedly installed on the outer surface of the end of the cover body. The limiting cover plate is pressed together with the outer surface of the water collection bottle. A plurality of through holes are evenly opened on the outer circumference of the cover body. A rubber retainer is fixedly installed on the outer side of the through holes. Both the water outlet and the water inlet have annular grooves on their inner walls that cooperate with the rubber retainer. The inner support member includes an air bladder. The air bladder is installed in the cover body. A plurality of annular air bladders are installed on the outer circumference of the air bladder. The annular air bladders are connected to the air bladder and are installed inside the rubber retainer.

[0008] Furthermore, the locking mechanism includes a mounting plate fixedly installed on the top of the inner cavity. The edge of the mounting plate is sealed between the inner wall of the inner cavity and the mounting plate. A motor is installed at the bottom center of the mounting plate. The top output end of the motor extends through the top of the mounting plate and is connected and fixed to the turntable. An arc-shaped protrusion is fixed on one side of the outer circumference of the turntable. Several limiting rods are evenly arranged on the mounting plate and on the outer side of the turntable. The limiting rods are vertically slidably connected to the mounting plate. A discharge slope and a bevel positioning groove are formed on one side of the outer surface of the limiting rod. The bevel positioning groove is engaged and fixed with the inner wall of the retaining ring. The discharge slope is adapted to the arc-shaped protrusion. A feed slope is formed on the other side of the outer surface of the limiting rod.

[0009] Furthermore, a sleeve is fixed to the bottom of the mounting plate by bolts, and a damping spring is fixed to the inner bottom of the sleeve by bolts. The bottom end of the limiting rod extends movably through the inside of the sleeve and is connected and fixed to the limiting plate. The limiting plate is slidably connected inside the sleeve, and the bottom of the limiting plate is connected and fixed to the telescopic end of the damping spring.

[0010] Furthermore, the reset mechanism includes a fixing block fixed in the middle of the bottle body. The fixing block has an installation cavity on its upper and lower sides. A support plate is installed on one side of the installation cavity. A fixing pin is fixed on the opposite side of the support plate and the installation cavity. A spring is installed on the fixing pin. The end of the spring away from the fixing pin is fixed to a connecting pin. The connecting pin is fixed to the outer surface of the end of the winding roller. The winding roller is rotatably connected between the two fixing pins. A traction rope is wound on the winding roller.

[0011] Furthermore, the reset mechanism also includes a lifting frame vertically slidably connected to the inner wall of the mounting cavity. The bottom of the lifting frame is fixedly connected to the end of the first traction rope, and the top of the lifting frame is connected to the telescopic end of the second damping spring. The second damping spring is fixedly installed on the inner wall of the mounting cavity. A sliding groove is provided on each of the two inner walls of the lifting frame. A third damping spring is fixedly fixed on each of the left and right inner walls of the mounting cavity. An inclined slider is fixedly connected to the telescopic end of the third damping spring. The end of the inclined slider is pressed into the sliding groove. The second traction rope is fixedly fixed to the top of the lifting frame. The top end of the second traction rope movably passes through the fixing block and is fixedly connected to the inner wall of the sealing cover.

[0012] Furthermore, a slide rail is fixed on each of the two inner walls of the mounting cavity, and the lifting frame is fixed between the sliders of the two slide rails.

[0013] Furthermore, a second slide rail is fixed on each of the two inner walls of the mounting cavity, and the inclined slider is fixed between the sliders on the two slide rails.

[0014] Furthermore, a guide wheel adapted to the traction rope is fixed on the inner wall of the mounting cavity, and the cavity inside the limiting plate and the sleeve are both elliptical structures.

[0015] Furthermore, a controller and a battery pack are provided at the bottom of the inner cavity. The battery pack is electrically connected to the controller and the motor, and the controller is electrically connected to the motor and the sensor assembly.

[0016] The beneficial effects of this invention are: The design of locking and resetting mechanisms enables automated water sampling, simplifies the operation process, increases the diving depth, and achieves the goal of automatic water sampling.

[0017] Through the design of the locking mechanism, before the device is placed underwater, pulling the retaining ring will move the locking ring, which in turn pulls the linkage rope. The end of the linkage rope will pull the two sealing caps open from the inlet and outlet of the bottle, thus placing the bottle in a through-pipe structure. The end of the retaining ring is inserted into the inner cavity through the insertion hole. The retaining ring is pressed against the feed ramp on the limit rod, which in turn pushes the limit rod down, allowing the retaining ring to pass through the limit rod and engage with the inner wall of the retaining ring, thus securing the retaining ring. After the frame lowers the water collection bottle to the designated depth, the motor is started by the controller. The motor drives the turntable and the arc-shaped... When the protrusion rotates one-sixth of a turn, the arc edge of the curved protrusion will rotate and squeeze the discharge ramp on the limiting rod. In turn, the ramp will squeeze and drive the limiting rod to descend, causing the limiting rod to disengage from the inner wall of the retaining ring. Without the limiting rod locking the retaining ring, the upper and lower sealing caps will reset and rotate under the action of the reset mechanism, and then lock onto the water inlet at the top of the bottle and the water outlet at the bottom, thus achieving the effect of sealing the bottle. During the locking process, the rubber retaining ring on the outer circumference of the sealing cap will lock into the annular groove on the inner wall of the water inlet and the water outlet, thus achieving a sealing effect while locking and sealing.

[0018] Through the design of the reset mechanism, during the rotation and opening of the sealing cap, the sealing cap will pull the second traction rope, which in turn will pull the lifting frame upward. The rising lifting frame will compress the second and third damping springs, and the bottom of the lifting frame will pull the first traction rope, which will pull the winding roller to rotate. At the same time, the rotating winding roller will pull the spring through the connecting pin. When the limit rod is no longer engaged, the winding roller will reset and rotate under the action of the spring, the second and third damping springs. At the same time, the lifting frame will reset and descend, which will then pull the second traction rope to move. The second traction rope will pull the sealing cap to reset and rotate, thus sealing the bottle and ensuring that the water collection bottle is in a sealed storage state.

[0019] Through the design of the sealing cap and the annular groove, the sealing cap is equipped with an airbag and an annular airbag connected to it. When the sealing cap is not rotating to seal the bottle, both the airbag and the annular airbag are under pressure. When the sealing cap is rotated and the bottle is sealed, the airbag and its outer rubber retainer will engage in the annular groove of the inlet and outlet due to the elasticity of the material. At this time, the annular airbag no longer bears pressure, only the airbag bears pressure. Without the reverse pressure from the direction of the annular airbag, the airbag will apply pressure to the annular airbag to ensure that the annular airbag is in a taut state, thereby simultaneously tightening the rubber retainer to achieve the engagement, fixation and compression sealing action of the annular groove.

[0020] The design of the guide wheel reduces wear on the traction rope and improves the stability of its movement. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a water quality sampling device according to the present invention; Figure 2 This is a schematic cross-sectional view of the bottle body of a water quality sampling device according to the present invention; Figure 3 This is a schematic diagram of the sealing cap structure of a water quality sampling device according to the present invention; Figure 4 This is a schematic cross-sectional view of the sealing cover of a water quality sampling device according to the present invention; Figure 5 This is a schematic diagram of the locking mechanism of a water quality sampling device according to the present invention; Figure 6 This is an exploded view of the locking mechanism of a water quality sampling device according to the present invention; Figure 7 This is a schematic diagram of the reset mechanism structure of a water quality sampling device according to the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the reset mechanism structure of a water quality sampling device according to the present invention. Figure 2 ; Figure 9 This is a partial structural diagram of the reset mechanism of a water quality sampling device according to the present invention.

[0023] In the diagram, 1. Frame; 2. Lifting ring; 3. Support rod; 4. Fixing plate; 5. Cabin; 6. Water collection bottle; 7. Bottle body; 8. Sealing cap; 9. Linkage rope; 10. Clamping ring; 11. Cover body; 12. Rubber retaining ring; 13. Airbag; 14. Annular airbag; 15. Limiting cover plate; 16. Mounting plate; 17. Motor; 18. Turntable; 19. Arc-shaped protrusion; 20. Limiting rod; 21. Sleeve; 22. Limiting plate; 23. 24. Discharge ramp; 25. Inclined positioning groove; 26. Feed ramp; 27. Fixing block; 28. Mounting cavity; 29. ​​Spring; 30. Fixing pin; 31. Connecting pin; 32. Take-up roller; 33. Traction rope one; 34. Guide wheel; 35. Slide rail one; 36. Lifting frame; 37. Damping spring two; 38. Traction rope two; 39. Inclined slider; 40. Slide rail two; 41. Damping spring three; 42. Support plate; 43. Slide groove. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-9 This invention provides a water quality sampling device, comprising a frame 1, with a lifting ring 2 mounted on the top of the frame 1. Several support rods 3 are fixedly mounted inside the frame 1, and two fixing plates 4 are fixed between the support rods 3. A chamber 5 is fixed between the two fixing plates 4. A sensor assembly is mounted on the bottom of the frame 1, including a pH sensor, a dissolved oxygen sensor, a water conductivity sensor, a turbidity sensor, and a temperature, salinity, and depth sensor. The pH sensor is used to collect the pH value of the ocean, the dissolved oxygen sensor is used to collect the dissolved oxygen content of the ocean, the water conductivity sensor is used to collect the water conductivity of the ocean, the turbidity sensor is used to collect the turbidity level of the ocean, and the temperature, salinity, and depth sensor is used to collect parameters such as ocean depth, temperature, and salinity. A cover is mounted on the top of the chamber 5, and an inner cavity is opened on the top of the chamber 5. A locking mechanism is installed inside the inner cavity. Several water sampling bottles 6 are mounted on the outer circumference of the fixing plates 4. Each water sampling bottle 6 includes a bottle body 7 and two sealing caps 8. The device has an inlet and an outlet at the center of the top and bottom, respectively. Two sealing caps 8 are hinged to the outlet and inlet, respectively. A linkage rope 9 connects the upper and lower sealing caps 8, and a retaining ring 10 is fixed on the linkage rope 9. The retaining ring 10 is engaged with the locking mechanism. A reset mechanism connected to the upper and lower sealing caps 8 is fixed in the middle of the water collection bottle 6. A pressure relief valve and a drain valve are also installed on the outer surface of the water collection bottle 6. A controller and a battery pack are installed at the bottom of the inner cavity. The battery pack is electrically connected to the controller and the motor. The controller is electrically connected to the motor and the sensor assembly. Through the design of the locking and reset mechanisms, automated water sampling can be achieved, simplifying the operation process, increasing the diving depth, and realizing the purpose of automatic water collection. In addition, all parts of the device that come into contact with seawater are made of corrosion-resistant materials, and all joints are sealed. The sealing treatment can be a sealing strip, a sealing ring, or any of the existing sealing methods.

[0026] See Figures 2-4The sealing cap 8 includes an outer shell and an inner support. The outer shell includes a cover body 11. A limiting cover plate 15 is fixedly installed on the outer surface of the end of the cover body 11. The limiting cover plate 15 is pressed together with the outer surface of the water collection bottle 6. Several through holes are evenly opened on the outer circumference of the cover body 11. A rubber retainer 12 is fixedly installed on the outer side of the through holes. Both the water outlet and the water inlet have annular grooves on their inner walls that mate with the rubber retainer 12. The inner support includes an air bladder 13. The air bladder 13 is installed inside the cover body 11. Several annular air bladders 14 are installed on the outer circumference of the air bladder 13. The annular air bladders 14 communicate with the air bladder 13 and are installed inside the rubber retainer 12. The sealing cap 8 and the annular groove are designed such that the sealing cap 8 is equipped with an airbag 13 and an annular airbag 14 connected to it. When the sealing cap 8 is not rotating to seal the bottle 7, both the airbag 13 and the annular airbag 14 are under pressure. When the sealing cap 8 is rotated and the bottle 7 is sealed, the airbag 13 and its outer rubber retainer 12 will be engaged in the annular groove of the inlet and outlet due to the elastic material. At this time, the annular airbag 14 no longer bears pressure, only the airbag 13 bears pressure. Without the reverse pressure from the direction of the annular airbag 14, the airbag 13 will apply pressure to the annular airbag 14 when under pressure, ensuring that the annular airbag 14 is in a taut state, thereby simultaneously tightening the rubber retainer 12 to achieve the engagement, fixation and compression sealing action of the annular groove.

[0027] See Figures 5-6The locking mechanism includes a mounting plate 16 fixedly installed on the top of the inner cavity. The edge of the mounting plate 16 is sealed between the inner wall of the inner cavity. A motor 17, which is a stepper motor, is installed at the bottom center of the mounting plate 16. The top output end of the motor 17 extends through the top of the mounting plate 16 and is fixedly connected to the turntable 18. An arc-shaped protrusion 19 is fixed on one side of the outer circumference of the turntable 18. Several limiting rods 20 are evenly arranged on the mounting plate 16 and on the outer side of the turntable 18. The limiting rods 20 are vertically slidably connected to the mounting plate 16. A discharge ramp 23 is formed on one side of the outer surface of the limiting rod 20. The inclined positioning groove 24 is engaged and fixed to the inner wall of the retaining ring 10. The discharge inclined surface 23 is adapted to the arc-shaped protrusion 19. The other side of the outer surface of the limiting rod 20 is provided with a feeding inclined surface 25. The bottom of the mounting plate 16 is fixed to the sleeve 21 by bolts. The inner bottom of the sleeve 21 is fixed to a damping spring by bolts. The bottom end of the limiting rod 20 extends movably through the inside of the sleeve 21 and is connected and fixed to the limiting plate 22. The limiting plate 22 is slidably connected inside the sleeve 21. The bottom of the limiting plate 22 is connected and fixed to the telescopic end of the damping spring. Through the design of the locking mechanism, when this device is placed in... Before submerging, pulling the retaining ring 10 moves the linkage rope 9, which in turn pulls the two sealing caps 8 from the inlet and outlet of the bottle 7, thus placing the bottle 7 in a through-pipe structure. The end of the retaining ring 10 is then inserted into the inner cavity through the insertion hole. The retaining ring 10 is pressed together with the feed ramp 25 on the limiting rod 20, which in turn pushes the limiting rod 20 down, allowing the retaining ring 10 to pass through the limiting rod 20 and engage with the inner wall of the retaining ring 10, thus securing the retaining ring 10. After the frame 1 descends with the water collection bottle 6 to the designated depth, the motor 17 is started by the controller. The motor 17 drives the turntable 18 and the arc-shaped protrusion 1. 9. Rotating one-sixth of a turn, the arc edge of the arc-shaped protrusion 19 will rotate and squeeze the discharge slope 23 on the limiting rod 20, thereby driving the limiting rod 20 to descend through the slope extrusion, causing the limiting rod 20 to disengage from the inner wall of the retaining ring 10. Without the limiting rod 20 locking and limiting the retaining ring 10, under the action of the reset mechanism, the upper and lower sealing caps 8 will reset and rotate, thereby locking onto the water inlet at the top and the water outlet at the bottom of the bottle body 7, thus achieving the effect of sealing the bottle body 7. During the locking process, the rubber retaining ring 12 on the outer circumference of the sealing cap 8 will lock into the annular retaining groove on the inner wall of both the water inlet and the water outlet, thus achieving a sealing effect while locking and sealing.

[0028] See Figures 7-9The reset mechanism includes a fixing block 26 fixed in the middle of the bottle body 7. The fixing block 26 has an installation cavity 27 on its upper and lower sides. A support plate 41 is installed on one side of each installation cavity 27. A fixing pin 29 is fixed to the opposite side of both the support plate 41 and the installation cavity 27. A spring 28 is installed on the fixing pin 29. The end of the spring 28 away from the fixing pin 29 is fixed to a connecting pin 30. The connecting pin 30 is fixed to the outer surface of the end of the winding roller 31. The winding roller 31 rotates... Connected between the two fixing pins 29, a traction rope 32 is wound onto the winding roller 31. The reset mechanism also includes a lifting frame 35 vertically slidably connected to the inner wall of the mounting cavity 27. The bottom of the lifting frame 35 is fixedly connected to the end of the traction rope 32, and the top of the lifting frame 35 is connected to the telescopic end of the damping spring 36. The damping spring 36 is fixedly installed on the inner wall of the mounting cavity 27. A sliding groove 42 is respectively opened on the inner walls of both sides of the lifting frame 35. The left and right inner walls of the mounting cavity 27 are respectively fixed with... A damping spring 3640 is provided, with a ramp slider 38 fixedly connected to its telescopic end. The end of the ramp slider 38 is pressed into the groove 42. A traction rope 27 is fixed to the top of the lifting frame 35, and the top end of the traction rope 27 moves through the fixing block 26 and is fixedly connected to the inner wall of the sealing cover 8. Through the design of the reset mechanism, during the rotation and opening of the sealing cover 8, the sealing cover 8 will pull the traction rope 27, which will pull the lifting frame 35 upward. The rising of the lifting frame 35 will compress the damping spring 36 and the ramp slider 38. The damping spring 340 and the bottom of the lifting frame 35 will pull the traction rope 32. The traction rope 32 will pull the winding roller 31 to rotate. At the same time, the winding roller 31 will pull the spring 28 through the connecting pin 30. When the limit rod 20 is no longer engaged, the winding roller 31 will return to its original rotation under the action of the spring 28, the damping spring 36, and the damping spring 340. At the same time, the lifting frame 35 will return to its original position and descend, thereby pulling the traction rope 37 to move. The traction rope 37 will pull the sealing cap 8 to return to its original rotation to seal the bottle 7 and ensure that the water collection bottle 6 is in a sealed storage state.

[0029] See Figure 8 A slide rail 34 is fixed on each of the two inner walls of the mounting cavity 27. The lifting frame 35 is fixed between the sliders of the two slide rails 34. A slide rail 39 is also fixed on each of the two inner walls of the mounting cavity 27. The inclined slider 38 is fixed between the sliders on the two slide rails 39. By setting the slide rails 34 and 39, the stability of the movement of the lifting frame 35 and the inclined slider 38 can be improved.

[0030] See Figure 9The inner wall of the mounting cavity 27 is fixed with a guide wheel 33 that is compatible with the traction rope 32. The cavities inside the limiting plate 22 and the sleeve 21 are both elliptical structures. Through the design of the elliptical structure, while ensuring the sliding connection between the limiting plate 22 and the sleeve 21, the rotation of the limiting plate 22 and the limiting rod 20 can also be avoided, ensuring that the feeding slope 25 at the top of the limiting rod 20 is compatible with the retaining ring 10.

[0031] In use, the lifting ring 2 is connected to the trolley, and the device is placed below the water surface by the trolley. Before being placed underwater, the retaining ring 10 is pulled. The movement of the retaining ring 10 will pull the linkage rope 9, and the end of the linkage rope 9 will pull the two sealing caps 8 from the inlet and outlet of the bottle body 7, thus putting the bottle body 7 into a through-pipe structure. The end of the retaining ring 10 is inserted into the inner cavity through the insertion hole. The retaining ring 10 is pressed together with the feeding inclined surface 25 on the limiting rod 20, which in turn pushes the limiting rod 20 down, so that the retaining ring 10 passes through the limiting rod 20, and the limiting rod 20 is locked onto the inner wall of the retaining ring 10, thus achieving the locking and fixing of the retaining ring 10. After the frame 1 lowers the water collection bottle 6 to the designated depth, the motor 17 is started by the controller. The motor 17 drives The turntable 18 and the arc-shaped protrusion 19 rotate one-sixth of a turn. The arc edge of the arc-shaped protrusion 19 rotates and squeezes the discharge slope 23 on the limiting rod 20. The slope squeeze drives the limiting rod 20 to descend, causing the limiting rod 20 to disengage from the inner wall of the retaining ring 10. Without the limiting rod 20 locking the retaining ring 10, the upper and lower sealing caps 8 will reset and rotate under the action of the reset mechanism, and then lock onto the water inlet at the top and the water outlet at the bottom of the bottle body 7, thus sealing the bottle body 7. During the locking process, the rubber retaining ring 12 on the outer circumference of the sealing cap 8 will lock into the annular groove on the inner wall of the water inlet and the water outlet, thus achieving a sealing effect while locking and sealing. At the same time, the sealing cap 8 is equipped with an airbag 13. And the annular airbag 14 connected to it, when the sealing cap 8 has not rotated to seal the bottle 7, both the airbag 13 and the annular airbag 14 are under pressure. When the sealing cap 8 has rotated and is sealing the bottle 7, the airbag 13 and its outer rubber retainer 12 will be engaged in the annular grooves of the inlet and outlet due to the elastic material. At this time, the annular airbag 14 no longer bears pressure, only the airbag 13 bears pressure. Without the reverse pressure from the direction of the annular airbag 14, the airbag 13 will apply pressure to the annular airbag 14 to ensure that the annular airbag 14 is in a taut state, thereby simultaneously tightening the rubber retainer 12 to achieve the engagement, fixation and compression sealing action of the annular groove; and the movement process of the reset mechanism is as follows, when sealing During the rotation and opening of the cap 8, the cap 8 pulls the second traction rope 37, which in turn pulls the lifting frame 35 upward. The rising lifting frame 35 compresses the second damping spring 36 and the third damping spring 40. The bottom of the lifting frame 35 then pulls the first traction rope 32, which in turn pulls the winding roller 31 to rotate. As the winding roller 31 rotates, it pulls the spring 28 through the connecting pin 30. When the limiting rod 20 is no longer engaged, the winding roller 31 returns to its original rotation under the action of the spring 28, the second damping spring 36, and the third damping spring 40. At the same time, the lifting frame 35 returns to its original position and descends, which in turn pulls the second traction rope 37 to move. The second traction rope 37 pulls the cap 8 to return to its original rotation, thus sealing the bottle 7 and ensuring that the water collection bottle 6 is in a sealed state.

[0032] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water quality sampling device, characterized in that, The system includes a frame (1), with a lifting ring (2) installed on the top of the frame (1). Several support rods (3) are fixedly installed inside the frame (1), and two fixing plates (4) are fixed between the support rods (3). A chamber (5) is fixed between the two fixing plates (4). A sensor assembly is installed at the bottom of the frame (1), including a pH sensor, a dissolved oxygen sensor, a water conductivity sensor, a turbidity sensor, and a temperature, salinity, and depth sensor. A chamber cover is installed on the top of the chamber (5), and an inner cavity is opened on the top side of the inner cavity. Several insertion holes are evenly opened on the top side of the inner cavity, extending through to the outer surface of the chamber (5). A locking mechanism is installed inside the cavity. Several water collection bottles (6) are installed on the outer circumference of the fixing plate (4). Each water collection bottle (6) includes a bottle body (7) and two sealing caps (8). The top center and bottom center of the bottle body (7) are respectively provided with an inlet and an outlet. The two sealing caps (8) are respectively hinged to the outlet and the inlet. A linkage rope (9) is connected between the upper and lower sealing caps (8). A retaining ring (10) is fixed on the linkage rope (9). The retaining ring (10) passes through the insertion hole into the inner cavity and is engaged with the locking mechanism. A reset mechanism connected to the upper and lower sealing caps (8) is fixed in the middle of the water collection bottle (6).

2. The water quality sampling device according to claim 1, characterized in that, The sealing cap (8) includes an outer shell and an inner support. The outer shell includes a cover (11). A limiting cover plate (15) is fixedly installed on the outer surface of the end of the cover (11). The limiting cover plate (15) is pressed together with the outer surface of the water collection bottle (6). A number of through holes are evenly opened on the outer circumference of the cover (11). A rubber retainer (12) is fixedly installed on the outer side of the through holes. An annular groove that cooperates with the rubber retainer (12) is opened on the inner wall of both the water outlet and the water inlet. The inner support includes an air bladder (13). The air bladder (13) is installed in the cover (11). A number of annular air bladders (14) are installed on the outer circumference of the air bladder (13). The annular air bladders (14) are connected to the air bladders (13). The annular air bladders (14) are installed in the rubber retainer (12).

3. The water quality sampling device according to claim 2, characterized in that, The locking mechanism includes a mounting plate (16) fixedly installed on the top of the inner cavity. The edge of the mounting plate (16) is sealed between the inner wall of the inner cavity. A motor (17) is installed at the bottom center of the mounting plate (16). The top output end of the motor (17) extends through the top of the mounting plate (16) and is connected and fixed to the turntable (18). An arc-shaped protrusion (19) is fixed on one side of the outer circumference of the turntable (18). The mounting plate (16) is located on the turntable. (18) has several limiting rods (20) evenly arranged on its outer side. The limiting rods (20) are vertically slidably connected to the mounting plate (16). The outer surface of the limiting rod (20) has a discharge slope (23) and a bevel positioning groove (24) on one side. The bevel positioning groove (24) is engaged and fixed with the inner wall of the retaining ring (10). The discharge slope (23) is adapted to the arc-shaped protrusion (19). The outer surface of the limiting rod (20) has a feed slope (25) on the other side.

4. A water quality sampling device according to claim 3, characterized in that, The bottom of the mounting plate (16) is fixed with a sleeve (21) by bolts. The inner bottom of the sleeve (21) is fixed with a damping spring. The bottom end of the limiting rod (20) extends into the inside of the sleeve (21) and is connected and fixed with the limiting plate (22). The limiting plate (22) is slidably connected inside the sleeve (21). The bottom of the limiting plate (22) is connected and fixed with the telescopic end of the damping spring.

5. A water quality sampling device according to claim 4, characterized in that, The reset mechanism includes a fixing block (26) fixed in the middle of the bottle body (7). The fixing block (26) has an installation cavity (27) on its upper and lower sides. A support plate (41) is installed on one side of the installation cavity (27). A fixing pin (29) is fixed on the opposite side of the support plate (41) and the installation cavity (27). A spring (28) is installed on the fixing pin (29). The end of the spring (28) away from the fixing pin (29) is fixed on the connecting pin (30). The connecting pin (30) is fixed on the outer surface of the end of the winding roller (31). The winding roller (31) is rotatably connected between the two fixing pins (29). A traction rope (32) is wound on the winding roller (31).

6. A water quality sampling device according to claim 5, characterized in that, The reset mechanism also includes a lifting frame (35) that is vertically slidably connected to the inner wall of the mounting cavity (27). The bottom of the lifting frame (35) is connected and fixed to the end of the first traction rope (32). The top of the lifting frame (35) is connected to the telescopic end of the second damping spring (36). The second damping spring (36) is fixedly installed on the inner wall of the mounting cavity (27). A sliding groove (42) is opened on each of the two inner walls of the lifting frame (35). A third damping spring (40) is fixed on the left and right inner walls of the mounting cavity (27). An inclined slider (38) is fixedly connected to the telescopic end of the third damping spring (40). The end of the inclined slider (38) is pressed into the sliding groove (42). A second traction rope (37) is fixed to the top of the lifting frame (35). The top end of the second traction rope (37) moves through the fixing block (26) and is connected and fixed to the inner wall of the sealing cover (8).

7. A water quality sampling device according to claim 6, characterized in that, A slide rail (34) is fixed on each of the two inner walls of the mounting cavity (27), and the lifting frame (35) is fixed between the sliders of the two slide rails (34).

8. A water quality sampling device according to claim 7, characterized in that, A slide rail (39) is fixed on each of the two inner walls of the mounting cavity (27), and the inclined slider (38) is fixed between the sliders on the two slide rails (39).

9. A water quality sampling device according to claim 8, characterized in that, The inner wall of the mounting cavity (27) is fixed with a guide wheel (33) that is compatible with the traction rope (32). The cavities inside the limiting plate (22) and the sleeve (21) are both elliptical structures.

10. A water quality sampling device according to claim 9, characterized in that, The bottom of the inner cavity is provided with a controller and a battery pack. The battery pack is electrically connected to the controller and the motor. The controller is electrically connected to the motor and the sensor assembly.

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