Layered sampling device for water quality monitoring

Abstract

The utility model discloses a stratified sampling device for water quality monitoring. The stratified sampling device comprises a fixed plate I, a buoy, a signal receiving device, a power system, a lifting mechanism, a collecting box, a cleaning mechanism, a quick release mechanism and a self-locking mechanism, float bowls are fixedly installed on the two sides of the fixing plate I, a sampling opening is formed in the fixing plate I, and the lifting mechanism is located in the sampling opening and fixedly connected with the fixing plate I; the signal receiving device is located on one side of the lifting mechanism and fixedly connected with the fixing plate I; the power system is located at the bottom of the signal receiving device and fixedly connected with the fixing plate I; the collecting box is located on one side of the lifting mechanism and slidably connected with the lifting mechanism. A water inlet is formed in one side of the collecting box, the cleaning mechanism is mounted at the water inlet of the collecting box, and the quick release mechanism is mounted in the collecting box; the self-locking mechanism is installed on the top of the collecting box. According to the utility model, stratified sampling of different areas and different depths of a water body is realized; through the cleaning mechanism, the filter plate is prevented from being blocked; and the rapid disassembly and assembly of the collecting box are realized through the rapid disassembly mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of water quality monitoring, and particularly relates to a layered sampling device for water quality monitoring. Background Art

[0002] Water quality monitoring is an important link in environmental protection and water resource management. At present, most traditional water quality sampling methods are direct sampling or single-depth sampling, which cannot accurately obtain water quality data at different depths; moreover, when receiving water resources, the inlet filter plate is often blocked, which affects the normal progress of the sampling work; when completing the water body collection, the collection device is complex and time-consuming to disassemble, reducing the sampling efficiency.

[0003] After retrieval, the prior art publication number: CN221571969U relates to a water quality monitoring layered sampler, including a handle and a collection cylinder. A plurality of collection cavities for accommodating water samples at different depths are arranged in the collection cylinder. Collection tubes for communicating with the corresponding collection cavities are relatively arranged on both sides of the collection cylinder. An inlet and outlet water component for controlling the inlet and outlet of water samples into and out of the collection cavity is arranged in the collection tube. A switch component is arranged at the bottom end of the handle, and the switch component is used to control the opening or closing of the inlet and outlet water component; this device does not have a cleaning mechanism for the filter plate. When the collection cylinder absorbs water in the water, the filter plate is easily blocked, causing the water body to be unable to enter the collection cylinder, thereby affecting the normal progress of the sampling work and the accuracy of sampling.

[0004] Further retrieval, the prior art publication number: CN217819555U is an efficient water quality monitoring layered sampling device, including a fixed seat. Universal wheels are fixedly connected to the four corners of the bottom of the fixed seat. A cylinder body is fixedly connected to the center of the top of the fixed seat. A hydraulic cylinder is connected to the inside of the cylinder body by interference fit. The output end of the hydraulic cylinder is fixedly connected to a box body. A first motor is arranged inside the box body. The output end of the first motor is fixedly connected to a lead screw. A guide rod is arranged inside the box body and on one side of the lead screw. The output ends of the lead screw and the guide rod are jointly connected to a connecting plate. A slide plate is arranged on the outside of the lead screw. A thread hole adapted to the lead screw is opened inside the slide plate; when the sampling of this device is completed, it is necessary to remove the double-headed bolt to take out the collected water body, which is relatively complex and time-consuming, not only increasing the operation difficulty but also reducing the sampling efficiency. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a layered sampling device for water quality monitoring, which realizes layered sampling of different areas and different depths of the water body; is provided with a cleaning mechanism to avoid blockage of the filter plate; and realizes the rapid disassembly and installation of the collection box through a quick-release mechanism.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A layered sampling device for water quality monitoring, comprising a fixed plate I, a floating drum, a signal receiving device, a power system, a lifting mechanism, a collection box, a cleaning mechanism, a quick-release mechanism, and a self-locking mechanism; floating drums are fixedly installed on both sides of the fixed plate I, a sampling port is provided on the fixed plate I, the lifting mechanism is located in the sampling port and is fixedly connected to the fixed plate I; the signal receiving device is located on one side of the lifting mechanism and is fixedly connected to the fixed plate I; the power system is located at the bottom of the signal receiving device and is fixedly connected to the fixed plate I; the collection box is located on one side of the lifting mechanism and is slidably connected to the lifting mechanism; a water inlet is provided on one side of the collection box, the cleaning mechanism is installed at the water inlet of the collection box, and the quick-release mechanism is installed in the collection box; the self-locking mechanism is installed on the top of the collection box; during layered sampling, the fixed plate I floats stably on the water surface through the floating drum, after receiving a remote instruction, the power system drives the fixed plate I to move on the water surface, and the lifting mechanism drives the collection box to a preset depth for sampling; the cleaning mechanism automatically cleans the water inlet to prevent blockage; after sampling is completed, the collection box is quickly disassembled through the quick-release mechanism and taken back for detection; during the lifting process, the self-locking mechanism ensures that the collection box is lifted smoothly without falling off.

[0008] The lifting mechanism includes a motor I, a support plate, a cylinder, a reciprocating lead screw, a sliding rod, a sliding frame I, a fixed plate II, and a sliding frame II; the cylinders are installed on both sides of the edge of the sampling port, the support plate is fixedly connected to the telescopic end of the cylinder, the fixed plate II is provided in two groups and is located on both sides of the bottom edge of the sampling port and is fixedly connected to the fixed plate I, the fixed plate II is hollow, and the sliding frame II is located at the bottom of the fixed plate II and is slidably connected to the fixed plate II; the reciprocating lead screw and the sliding rod I are located between the support plate and the sliding frame II, the reciprocating lead screw is rotatably connected to the support plate and the sliding frame II, the sliding rod I is fixedly connected to the support plate and the sliding frame II, and the motor I is fixedly installed on the support plate, and the output shaft of the motor I is fixedly connected to the reciprocating lead screw; the sliding frame I is located at the bottom of the support plate, is slidably connected to the sliding rod I, and is threadedly connected to the reciprocating lead screw; several card slots are provided on the sliding frame I; when water quality layered sampling is required, the motor I drives the reciprocating lead screw to rotate, and the sliding frame I descends smoothly along the sliding rod I, so that the collection box installed on the sliding frame I reaches the predetermined sampling depth; during the entire lifting process, the card slots on the sliding frame I are used to fix the collection box to prevent it from shaking or falling off during the movement; after sampling is completed, the motor I rotates the reciprocating lead screw in the reverse direction, so that the sliding frame I rises smoothly along the sliding rod, driving the collection box to float out of the water surface; subsequently, the cylinder pushes the support plate and the entire lifting mechanism to rise, and the sliding frame II rises along the fixed plate II, further lifting the collection box to a higher position for convenient disassembly and subsequent operations by the staff.

[0009] The collection box structure includes a solenoid valve, a handle, a filter plate, through holes, and a buckle; multiple collection bins are provided inside the collection box, and each collection bin is provided with a water inlet and a water outlet on one side, and solenoid valves are installed on both of these ports to accurately control the inflow and outflow of water; a filter housing is installed at the water inlet, and a filter plate is installed inside the filter housing. The filter plate is arc-shaped, which is used to effectively filter impurities in the water and is convenient for cleaning; a handle is provided at the top of the collection box to facilitate the staff to carry it after sampling; two groups of sliding grooves I and two groups of sliding grooves II are provided on the back of the collection box. The sliding groove I corresponds to the sliding frame I of the lifting mechanism to ensure that the collection box can be stably connected and move with the lifting mechanism; the sliding groove II is located at the bottom of the self-locking mechanism; several groups of through holes are provided on the back of the collection box. The through holes communicate the sliding groove I and the sliding groove II and cooperate with the sliding groove I and the sliding groove II to provide a stable installation position for the self-locking mechanism; buckles are installed on both sides of the collection box to fix the quick-release mechanism, providing convenience for the quick-release mechanism and accelerating the disassembly speed of the quick-release mechanism; driven by the lifting mechanism, the collection box accurately controls the inflow and outflow of water in each collection bin through the solenoid valve to complete water quality stratified sampling.

[0010] The cleaning mechanism includes a cleaning roller, a motor II, a rotating shaft, a scraper, and a connecting rod III; the motor II is fixedly installed on the top of the filter housing, and a waterproof housing is provided outside the motor II. The rotating shaft is rotatably installed inside the filter housing, and the output shaft of the motor II is fixedly connected to the rotating shaft. There are two groups of connecting rods III, which are corresponding up and down. The connecting rod III is fixedly connected to the rotating shaft. The scraper is fixedly installed at one end of the connecting rod III. The cleaning roller is located at the opposite end of the scraper. The cleaning roller is rotatably connected to the connecting rod III. The cleaning roller is made of rubber, and several groups of protrusions are provided on the cleaning roller, which are used to clean the filter holes to ensure the smoothness of the filter plate; when the filter plate in the filter housing needs to be cleaned, the motor II is started to drive the rotating shaft to rotate inside the filter housing. The connecting rod III fixedly connected to the rotating shaft rotates accordingly, and then drives the scraper and the cleaning roller to move synchronously. The scraper is responsible for scraping off the larger impurities attached to the filter plate, while the rubber cleaning roller uses the protrusions on its surface to penetrate into the filter holes to effectively clean the fine particles and blockages, ensuring that the filter plate remains unobstructed, effectively improving the cleaning efficiency and filtering effect.

[0011] The quick-release mechanism includes a limit block, a connecting seat II, a connecting rod I, a connecting rod II, and a limit plate II; there are two sets of the quick-release mechanism, which are symmetrically arranged with the self-locking mechanism as the center. The connecting rod II is slidably installed in the sliding groove II, the top of the connecting rod II is fixedly connected to the self-locking mechanism, and there is a sliding rod III on one side of the connecting rod II. There are two sets of sliding rods III, which are slidably connected to the through hole. One end of the sliding rod III is fixedly connected to the connecting rod II, and a limit block is installed at the end of the sliding rod III that is not fixedly connected to the connecting rod II. The limit block is located in the sliding groove I. The limit block is a right triangle and can slide in the through hole. There is a limit plate I on one side of the limit block, and the limit plate I is fixedly connected to the sliding rod III. There is a spring on one side of the limit plate I, and the spring is sleeved on the sliding rod III; there is a sliding rod II on one side of the sliding rod III. The sliding rod II is located in the through hole and is slidably connected to the through hole. A limit block is installed at the opposite end of the sliding rod II and the sliding rod III. There is a limit plate I on one side of the limit block, and the limit plate I is fixedly connected to the sliding rod II. There is a spring on one side of the limit plate I, and the spring is sleeved on the sliding rod II; one end of the sliding rod II is provided with a connecting seat I, and the connecting seat I is rotatably connected to the connecting seat II. A connecting rod I is fixedly installed on one side of the connecting seat II; the limit plate II is fixedly installed in the through hole. The limit plate II is located on one side of the spring and is slidably connected to the sliding rod II and the sliding rod III.

[0012] As can be seen from the above description: when it is necessary to install the collection box, manually pull the connecting rod I to make the sliding rod II and the limit block at one end of the sliding rod II completely enter the through hole from the sliding groove I, and the spring on the sliding rod II is compressed by the force; the connecting seat I is rotatably connected to the connecting seat II, so that the connecting rod I rotates to the buckle end and is fixed on the buckle; the self-locking mechanism works, pulls the connecting rod II, so that the sliding rod III and the limit block at one end of the sliding rod III completely enter the through hole from the sliding groove I, so that there is no obstacle in the sliding groove I, and the sliding groove I in the collection box is aligned with the sliding frame I on the lifting mechanism and inserted. There are several card slots on the sliding frame I, and the positions and sizes of the card slots match those of the limit blocks. After insertion, the self-locking mechanism pushes the limit block at one end of the sliding rod III into the card slot to initially fix the collection box. Subsequently, pull out the connecting rod I from the buckle, and the sliding rod II resets under the pressure of the spring, and the limit block at one end of the sliding rod II is snapped into the card slot to completely fix the collection box; when disassembling, manually pull the connecting rod I to make the limit block at one end of the sliding rod II disengage from the card slot of the sliding frame I and completely enter the through hole from the sliding groove I; snap the connecting rod I into the buckle to keep the position of the sliding rod II; subsequently, the staff holds the handle and controls the self-locking mechanism to contract, so that the limit block at one end of the sliding rod III disengages from the card slot and completely enters the through hole from the sliding groove I. At this time, the collection box can be easily taken out from the lifting mechanism.

[0013] The self-locking mechanism includes a waterproof electric push rod, a fixed seat, a guide block, and a sliding block; the fixed seat is fixedly installed on the top of the collection box, the middle of the fixed seat is hollow, and a guide groove I is provided at the top; the waterproof electric push rod is fixedly installed at the bottom end of the fixed seat, the telescopic end of the waterproof electric push rod is slidably connected to the fixed seat, and a guide block is installed at the telescopic end of the waterproof electric push rod; sliding blocks are provided on both sides of the top end of the fixed seat, the sliding blocks are slidably connected to the fixed seat through the guide groove I, a guide groove II is provided on one side of the sliding block, and the sliding block is slidably connected to the guide block through the guide groove II; the sliding block is fixedly connected to the connecting rod II in the quick-release mechanism; the waterproof electric push rod expands and contracts in the fixed seat, driving the guide block to move along the guide groove I; the guide block is connected to the sliding block through the guide groove II, pushing the sliding block to slide synchronously; the sliding block is fixed to the connecting rod II of the quick-release mechanism, so the movement of the connecting rod II can be controlled, and then the locking and release of the sliding rod III and the limit block at one end of the sliding rod III in the quick-release mechanism can be realized, facilitating the installation and disassembly of the collection box.

[0014] The beneficial effects of the present utility model compared with the prior art are as follows:

[0015] 1) The limit block is a right triangle, with the vertical surface at the top and the inclined surface at the bottom; this enables the limit block to slide more easily when inserted into the card slot, reducing friction and resistance, making the installation process of the collection box smoother; once the limit block completely enters the card slot, the vertical surface will play a locking role, preventing the collection box from accidentally sliding out or moving during the rising process, ensuring stability;

[0016] 2) The waterproof electric push rod expands and contracts in the fixed seat, driving the guide block to move along the guide groove I; the guide block is connected to the sliding block through the guide groove II, pushing the sliding block to slide synchronously; the sliding block is fixed to the connecting rod II of the quick-release mechanism, so the movement of the connecting rod II can be controlled, and then the locking and release of the sliding rod III and the limit block in the quick-release mechanism can be realized, facilitating the installation and disassembly of the collection box;

[0017] 3) The scraper is responsible for scraping off the larger impurities attached to the filter plate, while the rubber cleaning roller uses the protrusions on its surface to penetrate into the filter holes, effectively cleaning the fine particles and blockages, ensuring that the filter plate remains unobstructed, and effectively improving the cleaning efficiency and filtering effect. Description of the Drawings

[0018] Fig. Figure 1 is a schematic structural diagram of a layered sampling device for water quality monitoring according to the present utility model;

[0019] Fig. Figure 2 is the schematic structural diagram of the collection box of the lifting mechanism in Fig. Figure 1 ;

[0020] Fig. Figure 3 is the schematic structural diagram of the collection box in Fig. Figure 1 ;

[0021] Appended Figure 4 is appended Figure 3 is the schematic structural diagram of the cleaning mechanism in

[0022] Appended Figure 5 is appended Figure 3 is the schematic position diagram of the quick-release mechanism in

[0023] Appended Figure 6 is appended Figure 4 is the schematic structural diagram of the quick-release mechanism in

[0024] Appended Figure 7 is appended Figure 3 is the schematic structural diagram of the self-locking mechanism in Figure 1 ;

[0025] Appended Figure 8 is appended Figure 3 is the schematic structural diagram of the self-locking mechanism in Figure 2 ;

[0026] In the figure: 1, fixing plate I; 101, floating cylinder; 102, signal receiving device; 103, power system; 104, sampling port; 2, lifting mechanism; 21, motor I; 22, support plate; 23, cylinder; 24, reciprocating lead screw; 25, sliding rod I; 26, sliding frame I; 27, card slot; 28, fixing plate II; 29, sliding frame II; 3, collection box; 31, water inlet; 32, water outlet; 33, solenoid valve; 34, grip; 35, filter plate; 36, sliding slot I; 37, through hole; 38, buckle; 39, sliding slot II; 310, filter housing; 4, cleaning mechanism; 41, cleaning roller; 42, motor II; 43, rotating shaft; 44, scraper; 45, connecting rod III; 5, quick-release mechanism; 51, sliding rod II; 52, sliding rod III; 53, limit block; 54, spring; 55, connecting seat I; 56, connecting seat II; 57, limit plate I; 58, connecting rod I; 59, connecting rod II; 510, limit plate II; 6, self-locking mechanism; 61, waterproof electric push rod; 62, fixed seat; 63, guiding groove I; 64, guiding block; 65, sliding block; 66, guiding groove II. Specific embodiments

[0027] For the convenience of those skilled in the art to understand, the technical solutions of the present invention will be further specifically described below in conjunction with the appended Figures 1-8 , and the technical solutions of the present invention will be further specifically described.

[0028] A layered sampling device for water quality monitoring, comprising a fixed plate I 1, a floating drum 101, a signal receiving device 102, a power system 103, a lifting mechanism 2, a collection box 3, a cleaning mechanism 4, a quick-release mechanism 5, and a self-locking mechanism 6; floating drums 101 are fixedly installed on both sides of the fixed plate I 1, the fixed plate I 1 is provided with a sampling port 104, the lifting mechanism 2 is located in the sampling port 104 and is fixedly connected to the fixed plate I 1; the signal receiving device 102 is located on one side of the lifting mechanism 2 and is fixedly connected to the fixed plate I 1; the power system 103 is located at the bottom of the signal receiving device 102 and is fixedly connected to the fixed plate I 1. The power system is one of the existing propeller thrusters and is obtained through purchase or private customization. The specific internal structural composition will not be elaborated here one by one; the collection box 3 is located on one side of the lifting mechanism 2 and is slidably connected to the lifting mechanism 2; a water inlet 31 is provided on one side of the collection box 3, the cleaning mechanism 4 is installed at the water inlet 31 of the collection box 3, and the quick-release mechanism 5 is installed in the collection box 3; the self-locking mechanism 6 is installed on the top of the collection box 3; during layered sampling, the fixed plate I 1 floats stably on the water surface through the floating drums 101. After the signal receiving device receives a remote instruction, the power system 103 provides propulsion power on the water surface to drive the fixed plate I 1 to move on the water surface, and the lifting mechanism 2 drives the collection box 3 to a preset depth for sampling; the cleaning mechanism 4 automatically cleans the water inlet 31 to prevent blockage; after sampling is completed, the collection box 3 is quickly disassembled through the quick-release mechanism 5 and taken back for detection; during the lifting process, the self-locking mechanism 6 ensures that the collection box 3 is smoothly lifted without falling off.

[0029] The lifting mechanism 2 includes a motor I 21, a support plate 22, a cylinder 23, a reciprocating lead screw 24, a sliding rod I 25, a sliding frame I 26, a fixing plate II 28, and a sliding frame II 29; the cylinder 23 is installed on both sides of the edge of the sampling port 104, the support plate 22 is fixedly connected to the telescopic end of the cylinder 23, two groups of fixing plates II 28 are provided on both sides of the bottom edge of the sampling port 104 and are fixedly connected to the fixing plate I 1, the fixing plate II 28 is hollow, and the sliding frame II 29 is located at the bottom of the fixing plate II 28 and is slidably connected to the fixing plate II 28; the reciprocating lead screw 24 and the sliding rod I 25 are located between the support plate 22 and the sliding frame II 29, the reciprocating lead screw 24 is rotatably connected to the support plate 22 and the sliding frame II 29, the sliding rod I 25 is fixedly connected to the support plate 22 and the sliding frame II 29, the motor I 21 is fixedly installed on the support plate 22, and the output shaft of the motor I 21 is fixedly connected to the reciprocating lead screw 24; the sliding frame I 26 is located at the bottom of the support plate 22, is slidably connected to the sliding rod I 25, and is threadedly connected to the reciprocating lead screw 24; several card slots 27 are provided on the sliding frame I 26; when water quality stratified sampling is required, the motor I 21 drives the reciprocating lead screw 24 to rotate, and the sliding frame I 26 smoothly descends along the sliding rod I 25, so that the collection box 3 installed on the sliding frame I 26 reaches the predetermined sampling depth; during the entire lifting process, the card slots 27 on the sliding frame I 26 are used to fix the collection box 3 to prevent it from shaking or falling off during movement; after sampling is completed, the motor I 21 reversely rotates the reciprocating lead screw 24 to make the sliding frame I 26 smoothly rise along the sliding rod I 25, driving the collection box 3 to float out of the water surface; subsequently, the cylinder 23 pushes the support plate 22 and the entire lifting mechanism 2 to rise, and the sliding frame II 29 rises along the fixing plate II 28 to further lift the collection box 3 to a higher position, facilitating the staff to disassemble and perform subsequent operations.

[0030] The structure of the collection box 3 includes a solenoid valve 33, a handle 34, a filter plate 35, through holes 37, and a buckle 38. There are multiple collection bins in the collection box 3, and each collection bin is provided with a water inlet 31 and a water outlet 32 on one side, and solenoid valves 33 are installed on both of these ports to precisely control the inflow and outflow of water. A filter housing 310 is installed at the water inlet 31, and a filter plate 35 is installed inside the filter housing 310. The filter plate 35 is arc-shaped, which is used to effectively filter impurities in the water and is convenient for cleaning. A handle 34 is provided at the top of the collection box 3 to facilitate the staff to carry it after sampling. Two groups of sliding grooves I 36 and two groups of sliding grooves II 39 are provided on the back of the collection box 3. The sliding groove I 36 corresponds to the sliding frame I 26 of the lifting mechanism 2 to ensure that the collection box 3 can be stably connected and move with the lifting mechanism 2. The sliding groove II 39 is located at the bottom of the self-locking mechanism 6. Several groups of through holes 37 are provided on the back of the collection box 3. The through holes 37 communicate the sliding groove I 36 and the sliding groove II 39, and cooperate with the sliding groove I 36 and the sliding groove II 39 to provide a stable installation position for the self-locking mechanism 6. Buckles 38 are installed on both sides of the collection box 3 to fix the quick-release mechanism 5, which provides convenience for the quick-release mechanism 5 and speeds up the disassembly speed of the quick-release mechanism 5. Driven by the lifting mechanism 2, the collection box 3 precisely controls the inflow and outflow of water in each collection bin through the solenoid valve 33 to complete the water quality stratified sampling.

[0031] The cleaning mechanism 4 includes a cleaning roller 41, a motor II 42, a rotating shaft 43, a scraper 44, and a connecting rod III 45. The motor II 42 is fixedly installed on the top of the filter housing 310, and a waterproof housing is provided outside the motor II 42. The rotating shaft 43 is rotatably installed inside the filter housing 310, and the output shaft of the motor II 42 is fixedly connected to the rotating shaft 43. There are two groups of connecting rods III 45 corresponding up and down. The connecting rod III 45 is fixedly connected to the rotating shaft 43. The scraper 44 is fixedly installed at one end of the connecting rod III 45. The cleaning roller 41 is located at the opposite end of the scraper 44. The cleaning roller 41 is rotatably connected to the connecting rod III 45. The cleaning roller 41 is made of rubber, and there are several groups of protrusions on the cleaning roller 41, which are used to clean the filter holes to ensure the smoothness of the filter plate 35. When the filter plate 35 in the filter housing 310 needs to be cleaned, the motor II 42 is started to drive the rotating shaft 43 to rotate inside the filter housing 310. The connecting rod III 45 fixedly connected to the rotating shaft 43 rotates accordingly, and then drives the scraper 44 and the cleaning roller 41 to move synchronously. The scraper 44 is responsible for scraping off the larger impurities attached to the filter plate 35, while the rubber cleaning roller 41 uses the protrusions on its surface to penetrate into the filter holes to effectively clean the fine particles and blockages, ensuring that the filter plate 35 remains unobstructed, effectively improving the cleaning efficiency and filtering effect.

[0032] The quick-release mechanism 5 includes a limit block 53, a connecting seat II 56, a connecting rod I 58, a connecting rod II 59, and a limit plate II 510; there are two groups of the quick-release mechanisms 5, which are symmetrically arranged with the self-locking mechanism 6 as the center. The connecting rod II 59 is slidably installed in the sliding groove II 39. The top of the connecting rod II 59 is fixedly connected to the self-locking mechanism 6. A sliding rod III 52 is provided on one side of the connecting rod II 59. There are two groups of the sliding rod III 52, and it is slidably connected to the through hole 37. One end of the sliding rod III 52 is fixedly connected to the connecting rod II 59. A limit block 53 is installed at the end of the sliding rod III 52 that is not fixedly connected to the connecting rod II 59. The limit block 53 is located in the sliding groove I 36. The limit block 53 is a right triangle and can slide in the through hole 37. A limit plate I 57 is provided on one side of the limit block 53. The limit plate I 57 is fixedly connected to the sliding rod III 52. A spring 54 is provided on one side of the limit plate I 57. The spring 54 is sleeved on the sliding rod III 52; a sliding rod II 51 is provided on one side of the sliding rod III 52. The sliding rod II 51 is located in the through hole 37 and is slidably connected to the through hole 37. A limit block 53 is installed at the opposite end of the sliding rod II 51 and the sliding rod III 52. A limit plate I 57 is provided on one side of the limit block 53. The limit plate I 57 is fixedly connected to the sliding rod II 51. A spring 54 is provided on one side of the limit plate I 57. The spring 54 is sleeved on the sliding rod II 51; one end of the sliding rod II 51 is provided with a connecting seat I 55. The connecting seat I 55 is rotatably connected to the connecting seat II 56. A connecting rod I 58 is fixedly installed on one side of the connecting seat II 56; the limit plate II 510 is fixedly installed in the through hole 37. The limit plate II 510 is located on one side of the spring 54. The limit plate II 510 is slidably connected to the sliding rod II 51 and the sliding rod III 52;

[0033] As can be seen from the above description: When the collection box 3 needs to be installed, manually pull the connecting rod I 58, so that the sliding rod II 51 and the limiting block 53 at one end of the sliding rod II 51 completely enter the through hole 37 from the sliding groove I 36, and the spring 54 on the sliding rod II 51 is compressed; the connecting seat I 55 is rotatably connected to the connecting seat II 56, so that the connecting rod I 58 rotates to the buckle 38 end and is fixed on the buckle 38; the self-locking mechanism 6 works, pull the connecting rod II 59, so that the sliding rod III 52 and the limiting block 53 at one end of the sliding rod III 52 completely enter the through hole 37 from the sliding groove I 36, so that there is no obstruction in the sliding groove I 36, and the sliding groove I 36 in the collection box 3 is aligned with the sliding frame I 26 on the lifting mechanism 2 and inserted. There are several card slots 27 on the sliding frame I 26, and the positions and sizes of the card slots 27 match those of the limiting blocks 53. After insertion, the self-locking mechanism 6 pushes the limiting block 53 at one end of the sliding rod III 52 into the card slot 27 to initially fix the collection box 3. Subsequently, pull out the connecting rod I 58 from the buckle 38, and the sliding rod II 51 resets under the pressure of the spring 54, and the limiting block 53 at one end of the sliding rod II 51 is snapped into the card slot 27 to completely fix the collection box 3; when disassembling, manually pull the connecting rod I 58, so that the limiting block 53 at one end of the sliding rod II 51 disengages from the card slot 27 of the sliding frame I 26 and completely enters the through hole 37 from the sliding groove I 36; snap the connecting rod I 58 into the buckle 38 to keep the position of the sliding rod II 51; subsequently, the staff holds the handle 34 by hand and controls the self-locking mechanism 6 to contract, so that the limiting block 53 at one end of the sliding rod III 52 disengages from the card slot 27 and completely enters the through hole 37 from the sliding groove I 36. At this time, the collection box 3 can be easily taken out from the lifting mechanism 2.

[0034] The self-locking mechanism 6 includes a waterproof electric push rod 61, a fixed seat 62, a guide block 64, and a sliding block 65; the fixed seat 62 is fixedly installed on the top of the collection box 3, the middle of the fixed seat 62 is hollow, and a guide groove I 63 is provided at the top; the waterproof electric push rod 61 is fixedly installed at the bottom end of the fixed seat 62, the telescopic end of the waterproof electric push rod 61 is slidably connected to the fixed seat 62, and a guide block 64 is installed at the telescopic end of the waterproof electric push rod 61; sliding blocks 65 are provided on both sides of the top end of the fixed seat 62, the sliding blocks 65 are slidably connected to the fixed seat 62 through the guide groove I 63, a guide groove II 66 is provided on one side of the sliding blocks 65, and the sliding blocks 65 are slidably connected to the guide block 64 through the guide groove II 66; the sliding blocks 65 are fixedly connected to the connecting rod II 59 in the quick-release mechanism 5; the waterproof electric push rod 61 expands and contracts in the fixed seat 62, driving the guide block 64 to move along the guide groove I 63; the guide block 64 is connected to the sliding blocks 65 through the guide groove II 66, pushing the sliding blocks 65 to slide synchronously; the sliding blocks 65 are fixed to the connecting rod II 59 of the quick-release mechanism 5, so that the movement of the connecting rod II 59 can be controlled, and further the locking and release of the sliding rod III 52 and the limiting block 53 at one end of the sliding rod III 52 in the quick-release mechanism 5 can be realized, facilitating the installation and disassembly of the collection box 3.

[0035] A layered sampling device for water quality monitoring has the following working process:

[0036] During layered sampling, the fixing plate I 1 floats stably on the water surface through the floating cylinder 101. After receiving a remote instruction, the power system 103 drives the fixing plate I 1 to move on the water surface, and the lifting mechanism 2 drives the collection box 3 to a preset depth for sampling; the cleaning mechanism 4 automatically cleans the water inlet 31 to prevent blockage; after sampling is completed, the collection box 3 is quickly disassembled through the quick-release mechanism 5 and taken back for detection; during the lifting process, the self-locking mechanism 6 ensures that the collection box 3 is lifted smoothly without falling off.

[0037] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In summary, including but not limited to signal receiving devices, power systems, cylinders, motors, waterproof electric push rods and other electronic or electrical components are components in the prior art, obtained through private customization or purchase. The electrical connections between the components are all conventional circuit connections or electrical connections in the prior art, and are not within the protection scope of the present utility model.

[0039] The above content is only an example and explanation of the structure of the present utility model. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the structure of the utility model or exceed the scope defined by this claim book, they should all fall within the protection scope of the present utility model.

Claims

1. A stratified sampling device for water quality monitoring, comprising a fixed plate I, a float, a signal receiving device, a power system, a lifting mechanism, a collection box, a cleaning mechanism, a quick release mechanism, and a self-locking mechanism; floats are fixedly installed on both sides of the fixed plate I, a sampling port is provided on the fixed plate I, the lifting mechanism is located in the sampling port and is fixedly connected to the fixed plate I; the signal receiving device is located on one side of the lifting mechanism and is fixedly connected to the fixed plate I; the power system is located at the bottom of the signal receiving device and is fixedly connected to the fixed plate I; the collection box is located on one side of the lifting mechanism and is slidably connected to the lifting mechanism; a water inlet is provided on one side of the collection box, the cleaning mechanism is installed at the water inlet of the collection box, and the quick release mechanism is installed in the collection box; the self-locking mechanism is installed on the top of the collection box; Features The self-locking mechanism comprises a waterproof electric push rod, a fixed seat, a guide block, and a sliding block; the fixed seat is fixedly mounted on the top of the collection box, the middle of the fixed seat is hollow, and a guide groove I is provided at the top; the waterproof electric push rod is fixedly mounted on the bottom of the fixed seat, the telescopic end of the waterproof electric push rod is slidably connected to the fixed seat, and a guide block is installed at the telescopic end of the waterproof electric push rod; sliding blocks are provided on both sides of the top of the fixed seat, the sliding blocks are slidably connected to the fixed seat through the guide groove I, a guide groove II is provided on one side of the sliding block, and the sliding block is slidably connected to the guide block through the guide groove II; the sliding block is fixedly connected to the connecting rod II in the quick release mechanism; The quick release mechanism includes a limit block, a connecting seat II, a connecting rod I, a connecting rod II, and a limit plate II; the quick release mechanism is provided with two groups, which are symmetrically arranged with the self-locking mechanism as the center, the connecting rod II is slidably installed in the sliding groove II, the top of the connecting rod II is fixedly connected to the self-locking mechanism, a sliding rod III is provided on one side of the connecting rod II, the sliding rod III is divided into two groups, and is slidably connected to the through hole, one end of the sliding rod III is fixedly connected to the connecting rod II, and a limit block is installed on the end of the sliding rod III that is not fixedly connected to the connecting rod II, the limit block is located in the sliding groove I, the limit block is a right triangle, and the limit block can slide in the through hole, a limit plate I is provided on one side of the limit block, and the limit plate I is fixedly connected to the sliding rod III Fixed connection, a spring is provided on one side of the limit plate I, and the spring is sleeved on the sliding rod III; a sliding rod II is provided on one side of the sliding rod III, and the sliding rod II is located in the through hole and slidably connected to the through hole, and a limiting block is installed on the opposite end of the sliding rod II and the sliding rod III, and a limit plate I is provided on one side of the limit block, and the limit plate I is fixedly connected to the sliding rod II, and a spring is provided on one side of the limit plate I, and the spring is sleeved on the sliding rod II; a connecting seat I is provided at one end of the sliding rod II, and the connecting seat I is rotatably connected to the connecting seat II, and a connecting rod I is fixedly installed on one side of the connecting seat II; the limit plate II is fixedly installed in the through hole, and the limit plate II is located on one side of the spring, and the limit plate II is slidably connected to the sliding rod II and the sliding rod III.

2. A stratified sampling device for water quality monitoring according to claim 1, characterized in that The lifting mechanism includes a motor I, a support plate, a cylinder, a reciprocating screw, a sliding rod I, a sliding frame I, a fixed plate II, and a sliding frame II; the cylinder is installed on both sides of the edge of the sampling port, the support plate is fixedly connected to the telescopic end of the cylinder, the fixed plate II is set to two groups and located on both sides of the bottom edge of the sampling port, and is fixedly connected to the fixed plate I, the fixed plate II is set to be hollow, and the sliding frame II is located at the bottom of the fixed plate II and is slidably connected to the fixed plate II; the reciprocating screw and the sliding rod I are located between the support plate and the sliding frame II, the reciprocating screw is rotatably connected to the support plate and the sliding frame II, the sliding rod is fixedly connected to the support plate and the sliding frame II, the motor I is fixedly installed on the support plate, and the output shaft of the motor I is fixedly connected to the reciprocating screw; the sliding frame I is located at the bottom of the support plate, is slidably connected to the sliding rod I, and is threadedly connected to the reciprocating screw; a plurality of card slots are provided on the sliding frame I.

3. A stratified sampling device for water quality monitoring according to claim 1, characterized in that The collecting box structure includes a solenoid valve, a handle, a filter plate, a through hole, and a buckle; a plurality of collecting bins are arranged in the collecting box, each of which is provided with a water inlet and a water outlet on one side, and a solenoid valve is installed on both ports; a filter shell is installed at the water inlet, a filter plate is installed in the filter shell, and the filter plate is arc-shaped; a handle is provided on the top of the collecting box; two groups of sliding grooves I and two groups of sliding grooves II are provided on the back of the collecting box, and the sliding groove I corresponds to the sliding frame I of the lifting mechanism; the sliding groove II is located at the bottom of the self-locking mechanism; a plurality of through holes are provided on the back of the collecting box, and the through holes connect the sliding groove I and the sliding groove II, and cooperate with the sliding groove I and the sliding groove II; buckles are installed on both sides of the collecting box.

4. A stratified sampling device for water quality monitoring according to claim 1, characterized in that The cleaning mechanism includes a cleaning roller, a motor II, a rotating shaft, a scraper, and a connecting rod III; the motor II is fixedly installed on the top of the filter shell, a waterproof shell is provided on the outside of the motor II, the rotating shaft is rotatably installed in the filter shell, the output shaft of the motor II is fixedly connected to the rotating shaft, the connecting rod III is provided with two groups and corresponds to each other up and down, the connecting rod III is fixedly connected to the rotating shaft, the scraper is fixedly installed at one end of the connecting rod III, the cleaning roller is located at the opposite end of the scraper, the cleaning roller is rotatably connected to the connecting rod III, the cleaning roller is made of rubber, and a plurality of groups of protrusions are provided on the cleaning roller.

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