Composite water source circulating water sampling device and sampling method

Abstract

The invention discloses a composite water source circulating water sampling device and a sampling method, and relates to the technical field of water body sampling. The device comprises a winding assembly, an insertion assembly is mounted on the winding assembly, a clamping assembly is in insertion fit with the insertion assembly, and a sampling assembly is mounted at the bottom of the clamping assembly. The winding assembly and the sampling assembly are arranged; the pulling rope is controlled to release, the pulling rope measures the release length through the meter counter so as to accurately control the diving depth of the sampling assembly, and meanwhile, the diving depth of the sampling assembly is controlled by controlling the pressure intensity in the air cavity, and the pressure intensity of the to-be-sampled assembly in the water body is greater than the pressure intensity in the air cavity, so that the water body is automatically collected; after the water body is collected, the water body in the sampling cavity is automatically blocked by the sealing plate under the cooperation of the blocking assembly and the sealing triggering assembly, so that the sealing performance of the sampling assembly is improved, the device can be used for collecting water samples at different depths of the water body, and the accuracy of the samples is improved.

Description

Technical Field

[0001] This invention belongs to the field of water sampling technology, and in particular relates to a composite water source circulating water sampling device and sampling method. Background Technology

[0002] Water sources are the general geographical term for the origins and forms of water. As the source of life and an irreplaceable resource for survival, they play a vital intermediary role in the transfer of matter, information, and energy. They mainly include oceans, surface water, groundwater, and glaciers / snow-capped mountains, and are renewed through atmospheric circulation. Functionally, they can be categorized into emergency water sources and industrial water sources, with industrial water sources encompassing surface water, groundwater, and tap water. To better study the properties of water sources, it is generally necessary to sample the water body and then analyze the samples. Existing composite water source circulating water sampling equipment cannot sample water at a specified depth during sampling, resulting in water samples being collected at varying depths, which affects the accuracy of post-sampling analysis. To address this issue, we provide a composite water source circulating water sampling device and method to resolve the aforementioned problems. Summary of the Invention

[0003] The purpose of this invention is to provide a composite water source circulating water sampling device and method. By setting up a winding component and a sampling component, and controlling the release of the traction rope (the release length of which is measured by a meter counter), the diving depth of the sampling component is precisely controlled. Simultaneously, the diving depth of the sampling component is controlled by adjusting the pressure inside the air chamber. When the pressure of the sampling component in the water is greater than the pressure inside the air chamber, automatic water sampling is achieved. After water sampling is completed, the water inside the sampling chamber is automatically sealed by a sealing plate through the cooperation of a sealing component and a sealing trigger component, thereby improving the sealing performance of the sampling component. This allows the device to collect water samples at different depths, thus improving sample accuracy. This invention solves the problem in existing composite water source circulating water sampling equipment where the sampling device cannot collect water at a specified depth, resulting in water samples being collected at different depths, which affects the accuracy of post-sampling analysis.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a composite water source circulating water sampling device, including a winding assembly, a plug-in assembly installed on the winding assembly, a snap-fit ​​assembly plugged into the plug-in assembly, and a sampling assembly installed at the bottom of the snap-fit ​​assembly; the winding assembly is used to release and retrieve the sampling assembly, and the winding assembly is equipped with a meter counting function, which can accurately control the sampling assembly to collect water samples in water at different depths; the plug-in assembly and the snap-fit ​​assembly are used together to allow the sampling assembly to be quickly installed and removed from the winding assembly; the sampling assembly can accurately sample in water at a specific depth by utilizing the combined use of air pressure and water pressure.

[0005] Furthermore, the winding assembly includes a base, with several support columns symmetrically fixedly connected to the bottom of the base. Each support column is equipped with a caster wheel with a foot brake at its bottom. A first upright plate is symmetrically fixedly connected to the top of the base, and a winding roller is rotatably connected between two first upright plates. A motor is fixedly connected to one side of one of the first upright plates, and the output end of the motor passes through the first upright plate and is fixedly connected to the output shaft of the winding roller. A fixing plate is fixedly connected to the top of the base, and a second upright plate is symmetrically fixedly connected to one side of the fixing plate. A first guide roller and a second guide roller are rotatably connected between two second upright plates. A traction rope passing through the second guide roller and the first guide roller is wound around the outer wall of the winding roller, and a connector is fixedly connected to the end of the traction rope. A meter counter is fixedly connected to one side of one of the second upright plates, and the output shaft of the meter counter is fixedly connected to the output shaft of the second guide roller. A display screen is fixedly connected to the top of the base.

[0006] Furthermore, the plug-in assembly includes a connecting post fixedly connected to the connector head, a plug-in post fixedly connected to the bottom of the connecting post, a calibration block symmetrically fixedly connected to the outer wall of the plug-in post, grooves symmetrically opened on the outer wall of the plug-in post, a plug rod slidably connected to the inner wall of the groove, and a first spring fixedly connected between the plug rod and the groove.

[0007] Furthermore, the snap-fit ​​assembly includes a cylindrical tube that slides with the insertion post. The inner wall of the cylindrical tube has symmetrically formed limiting grooves that slide with the two insertion rods. The inner wall of the cylindrical tube also has two arc-shaped grooves arranged in a circumferential array and connected to the limiting grooves. The arc-shaped grooves slide with the corresponding insertion rods. The outer wall of the cylindrical tube has symmetrically formed snap holes that communicate with the arc-shaped grooves and are inserted with the insertion rods. A trigger rod is symmetrically slidably connected to the outer wall of the cylindrical tube. The trigger rod slides with the snap hole. One end of the trigger rod is fixedly connected to a first baffle. A second spring sleeved on the trigger rod is fixedly connected between the first baffle and the cylindrical tube.

[0008] Furthermore, the sampling assembly includes a sampling box fixedly connected to the bottom of the cylindrical tube. A first partition is fixedly connected to the inner wall of the sampling box. A second partition is fixedly connected between the first partition and the inner wall of the sampling box. One side of the first partition is a sampling chamber. The space enclosed between the second partition and the first partition and located below the second partition is an air chamber. The upper part of the second partition is a counterweight chamber. A counterweight block is fixedly connected to the top of the second partition.

[0009] Furthermore, the sampling box has handles symmetrically fixedly connected to its top; an air injection pipe connected to the air chamber is fixedly inserted into one outer side of the sampling box; a drain pipe connected to the sampling chamber is fixedly inserted into the bottom of the sampling box; solenoid valves are installed on the outer walls of both the air injection pipe and the drain pipe; a water inlet pipe connected to the sampling chamber is fixedly inserted into one outer side of the sampling box; a first annular groove is formed on the inner wall of the water inlet pipe; a second annular groove is formed on the outer wall of the water inlet pipe and is coaxial with the first annular groove; an annular sealing groove is formed on one inner side of the sampling chamber and is connected to the outer side of the water inlet pipe; a first sliding groove is formed on one inner side of the counterweight chamber; a sliding plate is slidably connected to the inner wall of the sampling chamber; a guide rod extending through to the outside of the sampling box is fixedly connected to the top of the sliding plate; a second baffle is fixedly connected to the end of the guide rod; and a first wedge block is fixedly connected to the top of the sliding plate.

[0010] Furthermore, a sealing assembly is provided inside the sampling chamber. The sealing assembly includes a first square rod that is slidably connected through the first partition plate. A sealing plate is fixedly connected to one end of the first square rod. An annular sleeve that is inserted into and cooperates with an annular sealing groove is fixedly connected to one side of the sealing plate. A circular plate located inside the air cavity is fixedly connected to the outer wall of the first square rod. A second wedge block is fixedly connected to one side of the circular plate. A first return spring sleeved on the first square rod is fixedly connected between the circular plate and the air cavity.

[0011] Furthermore, a sealing trigger assembly is provided inside the counterweight cavity. The sealing trigger assembly includes a lead screw rotatably connected to the top of the counterweight cavity. A gear is fixedly connected to the outer wall of the lead screw. A second square rod extending into the sampling cavity is slidably connected to one inner side of the counterweight cavity. A first abutment rod that abuts against the first wedge block is fixedly connected to one end of the second square rod. A toothed plate that meshes with the gear is fixedly connected to the other end of the second square rod. A second return spring is fixedly connected between the toothed plate and the counterweight cavity. A lifting plate that slides with the first sliding groove is threadedly connected to the outer wall of the lead screw. An L-shaped plate is fixedly connected to the bottom of the lifting plate. A second abutment rod that penetrates into the air cavity and abuts against the second wedge block is fixedly connected to the bottom of the L-shaped plate.

[0012] Furthermore, the inlet pipe is equipped with a protective assembly, which includes an annular magnetic plate rotatably connected to the outer wall of the inlet pipe. Screws are symmetrically fixed to one side of the annular magnetic plate. The protective assembly also includes a filter cover threaded onto the inlet pipe. A scraper that contacts the filter cover is slidably connected between the two screws, and a nut that abuts against the scraper is threaded onto the outer wall of the screw. The protective assembly also includes a rotating column rotatably connected to the inner wall of the inlet pipe. A plurality of oblique guide grooves arranged in a circumferential array are opened through one side of the rotating column. The protective assembly also includes an annular plate rotatably connected to the inner wall of the inlet pipe. The annular plate rotatably engages with the first annular groove. The annular plate is made of iron material that can be attracted by the annular magnetic plate. A plurality of through holes are opened through one side of the annular plate, and guide plates arranged in a circumferential array and engaging with the oblique guide grooves are fixedly connected to one side of the annular plate.

[0013] This invention also includes a method for sampling composite water source circulating water, comprising the following steps: S01: First, the snap-fit ​​component on the sampling component is installed on the plug-in component, thereby enabling the sampling component to be installed on the take-up component.

[0014] S02: Next, based on the depth of the sampled water body, gas is injected into the gas chamber through the gas injection pipe to make the pressure inside the gas chamber match the depth of the sampled water body.

[0015] S03: Subsequently, control the winding assembly to release the traction rope, so that the sampling assembly is slowly released into the water body for sampling. With the use of the meter counter, the depth of the sampling assembly in the water body can be accurately controlled.

[0016] S04: Then, after the sampling component descends to the designated depth, the pressure in the water is greater than the pressure inside the air chamber, causing water to enter the sampling chamber. Once the sampling chamber is full of water, the sealing component and the sealing trigger component work together to seal the inlet pipe. Finally, the traction rope is wound up to lift the sampling component, thus completing the water sampling.

[0017] The present invention has the following beneficial effects: 1. The present invention sets up a winding component and a sampling component; controls the release of the traction rope, and the release length of the traction rope is measured by a meter counter, thereby accurately controlling the diving depth of the sampling component. At the same time, by controlling the pressure inside the air chamber, the diving depth of the sampling component is also controlled. When the pressure of the sampling component in the water is greater than the pressure inside the air chamber, automatic water sampling is achieved. After the water sampling is completed, the water inside the sampling chamber is automatically sealed by the sealing plate through the cooperation of the sealing component and the sealing trigger component, thereby improving the sealing performance of the sampling component. This allows the device to collect water samples at different depths in the water, thereby improving the accuracy of the samples.

[0018] 2. This invention simultaneously presses down on the two first baffles, causing the two trigger rods to move along the locking holes towards the axis of the cylindrical tube. This causes the trigger rods to contact the insertion rods, moving the two insertion rods towards the axis of the cylindrical tube, disengaging them from the locking holes. Then, the insertion post is controlled to rotate 90° in the opposite direction, causing the two insertion rods to rotate to the two limiting grooves. Subsequently, the insertion assembly is lifted upwards, thus completing the disassembly of the insertion assembly and the locking assembly. This allows for later replacement or maintenance of the sampling assembly, avoiding the cumbersome bolt fixing method of traditional methods and effectively improving ease of use.

[0019] 3. By setting up protective components, the water enters the sampling chamber through the inlet pipe. The water first passes through the inclined guide channel on the rotating column to generate a vortex, which then impacts the guide plate, causing the guide plate to rotate. The guide plate then rotates through the annular plate, causing the annular magnet plate to rotate. The annular magnet plate drives the scraper to rotate through the two screws, so that the scraper cleans the surface of the filter cover, preventing impurities in the water from clogging the filter cover, thereby improving the cleanliness of water sampling and the smoothness of collection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of 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.

[0021] Figure 1 A schematic diagram of a composite water source circulating water sampling device; Figure 2 This is a schematic diagram of the winding assembly in this invention; Figure 3 This is a schematic diagram of the plug-in assembly in this invention; Figure 4 This is a cross-sectional view of the snap-fit ​​assembly in this invention; Figure 5 This is a schematic diagram of the cylindrical tube structure in this invention; Figure 6 This is a cross-sectional view of the sampling component in this invention; Figure 7 This is a cross-sectional view of the connection between the sampling box, the water inlet pipe, and the snap-fit ​​assembly in this invention. Figure 8 This is a cross-sectional view of the acquisition box in this invention; Figure 9 This is a cross-sectional view of the water inlet pipe in this invention. Figure 10 This is a schematic diagram of the structure at the connection between the sliding plate and the first wedge block in this invention; Figure 11 This is a schematic diagram of the sealing component in this invention; Figure 12 This is a schematic diagram of the sealing trigger assembly in this invention; Figure 13 This is a cross-sectional view of the connection between the water inlet pipe and the protective component in this invention. Figure 14 This is a cross-sectional view of the protective component in this invention.

[0022] The attached diagram lists the components represented by each number as follows: 1. Rewinding assembly; 101. Base; 102. Support column; 103. Caster wheel; 104. First upright plate; 105. Rewinding roller; 106. Motor; 107. Fixing plate; 108. Second upright plate; 109. First guide roller; 110. Second guide roller; 111. Traction rope; 112. Connector; 113. Meter counter; 114. Display screen; 2. Plug-in assembly; 201. Connecting column; 202. Plug-in column; 203. Calibration block; 204. Groove; 205. Insert rod; 206. First spring; 3. Snap-fit ​​assembly; 301. Cylindrical tube; 302. Limiting groove; 303. Arc groove; 304. Snap hole; 305. Trigger rod; 306. First baffle; 307. Second spring; 4. Sampling assembly; 401. Sampling box; 402. First partition; 403. Second partition; 404. Sampling chamber; 405. Air chamber; 406. Counterweight chamber; 407. Counterweight block; 408. Handle; 409. Air injection tube; 4 10. Drain pipe; 411. Inlet pipe; 412. First annular groove; 413. Second annular groove; 414. Annular sealing groove; 415. First sliding groove; 416. Slide plate; 417. Guide rod; 418. Second baffle; 419. First wedge block; 5. Sealing assembly; 501. First square rod; 502. Sealing plate; 503. Annular sleeve; 504. Circular plate; 505. Second wedge block; 506. First return spring; 6. Sealing trigger assembly; 601 602. Screw; 603. Gear; 604. Second square rod; 605. First abutment rod; 606. Gear plate; 607. Second return spring; 608. Lifting plate; 609. L-shaped plate; 6000. Second abutment rod; 701. Protective assembly; 702. Annular magnet plate; 703. Screw; 704. Filter cover; 705. Scraper; 706. Nut; 707. Rotating column; 708. Angled guide channel; 709. Annular plate; 7000. Through hole; 710. Guide plate. Detailed Implementation

[0023] 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.

[0024] Example 1, please refer to Figure 1-14 The present invention provides the following technical solution: a composite water source circulating water sampling device, including a winding assembly 1, a plug-in assembly 2 installed on the winding assembly 1, a snap-fit ​​assembly 3 plugged into the plug-in assembly 2, and a sampling assembly 4 installed at the bottom of the snap-fit ​​assembly 3; the winding assembly 1 is used to release and retrieve the sampling assembly 4, and the winding assembly 1 is equipped with a meter counting function, which can accurately control the sampling assembly 4 to collect water samples in water bodies at different depths; the plug-in assembly 2 and the snap-fit ​​assembly 3 are used together to allow the sampling assembly 4 to be quickly installed and removed from the winding assembly 1; the sampling assembly 4 can accurately sample in water bodies at specific depths by utilizing the combined use of air pressure and water pressure.

[0025] The winding assembly 1 includes a base 101, with several support columns 102 symmetrically fixedly connected to the bottom of the base 101. Each support column 102 is equipped with a caster wheel 103 with a foot brake at its bottom. First upright plates 104 are symmetrically fixedly connected to the top of the base 101, and a winding roller 105 is rotatably connected between two first upright plates 104. A motor 106 is fixedly connected to one side of one of the first upright plates 104, and the output end of the motor 106 passes through the first upright plate 104 and is fixedly connected to the output shaft of the winding roller 105. A fixing plate 107 is fixedly connected to the top of the base 101. A second upright plate 108 is symmetrically fixedly connected to one side of the fixed plate 107. A first guide roller 109 and a second guide roller 110 are rotatably connected between the two second upright plates 108. A traction rope 111 passing through the second guide roller 110 and the first guide roller 109 is wound around the outer wall of the winding roller 105. A connector 112 is fixedly connected to the end of the traction rope 111. A meter counter 113 is fixedly connected to one side of one of the second upright plates 108. The output shaft of the meter counter 113 is fixedly connected to the output shaft of the second guide roller 110. A display screen 114 is fixedly connected to the top of the base 101.

[0026] The operation process of this embodiment is as follows: By controlling the motor 106 to drive the take-up roller 105 to rotate, the take-up roller 105 releases the traction rope 111. During the release of the traction rope 111, the sampling component 4 is driven by the second guide roller 110 to rotate. At the same time, with the cooperation of the meter counter 113, the meter counter 113 records the length of the traction rope 111 released, thereby reflecting the depth of the sampling component 4 in the water body. This allows for precise control of the diving position of the sampling component 4, thereby improving the accuracy of water body sampling at a specified depth and improving the accuracy of subsequent water body sample testing. By controlling the motor 106 to drive the take-up roller 105 to rotate in the opposite direction, the traction rope 111 is wound up, thereby lifting the sampling component 4 and realizing the recovery of the sampling component 4.

[0027] Example 2, please refer to Figure 1-14 This second embodiment is an improvement on the first embodiment as follows: the plug-in assembly 2 includes a connecting post 201 fixedly connected to the connector 112, a plug-in post 202 fixedly connected to the bottom of the connecting post 201, a calibration block 203 symmetrically fixedly connected to the outer wall of the plug-in post 202, grooves 204 symmetrically opened on the outer wall of the plug-in post 202, a plug rod 205 slidably connected to the inner wall of the groove 204, and a first spring 206 fixedly connected between the plug rod 205 and the groove 204.

[0028] The snap-fit ​​assembly 3 includes a cylindrical tube 301 that slides with the insertion post 202. The inner wall of the cylindrical tube 301 is symmetrically provided with limiting grooves 302 that slide with the two insertion rods 205. The inner wall of the cylindrical tube 301 is provided with two arc-shaped grooves 303 that are arranged in a circumferential array and are connected to the limiting grooves 302. The arc-shaped grooves 303 slide with the corresponding insertion rods 205. The outer wall of the cylindrical tube 301 is symmetrically provided with snap holes 304 that are connected to the arc-shaped grooves 303 and are inserted with the insertion rods 205. The outer wall of the cylindrical tube 301 is symmetrically slidably connected with trigger rods 305. The trigger rods 305 slide with the snap holes 304. One end of the trigger rod 305 is fixedly connected with a first baffle 306. A second spring 307 sleeved on the trigger rod 305 is fixedly connected between the first baffle 306 and the cylindrical tube 301.

[0029] The operation process of this embodiment is as follows: The two insert rods 205 on the insert post 202 are aligned with the two limiting grooves 302 and inserted into the cylindrical tube 301 until the insert post 202 is inserted to the bottom of the cylindrical tube 301. At this time, the two insert rods 205 are just moved to the position of the two arc-shaped grooves 303 (during the movement of the two insert rods 205 along the two limiting grooves 302, the two first springs 206 are in a compressed state). Then, the insert post 202 is controlled to rotate 90°, causing the insert post 202 to drive the two insert rods 205 to slide along the corresponding arc-shaped grooves 303, so that the two insert rods 205 are moved to be directly opposite the two locking holes 304. At this time, under the elastic force of the first springs 206, the two insert rods 205 are driven to move into the corresponding locking holes 304, thereby... The quick installation of the plug-in assembly 2 and the snap-fit ​​assembly 3 is completed by simultaneously pressing the two first baffles 306, which drives the two trigger rods 305 to move along the snap-fit ​​holes 304 towards the axis of the cylindrical tube 301. This causes the trigger rods 305 to contact the plug rods 205, which in turn moves the two plug rods 205 towards the axis of the cylindrical tube 301, disengaging them from the snap-fit ​​holes 304. Then, the plug-in post 202 is controlled to rotate 90° in the opposite direction, causing the two plug rods 205 to rotate to the two limit grooves 302. Subsequently, the plug-in assembly 2 is lifted and moved upward, thus completing the disassembly of the plug-in assembly 2 and the snap-fit ​​assembly 3. This allows for the later replacement or maintenance of the sampling assembly 4, avoiding the cumbersome traditional bolt fixing method and effectively improving ease of use.

[0030] Example 3, please refer to Figure 1-14This third embodiment improves upon the first embodiment as follows: the sampling assembly 4 includes a sampling box 401 fixedly connected to the bottom of the cylindrical tube 301. A first partition 402 is fixedly connected to the inner wall of the sampling box 401. A second partition 403 is fixedly connected between the first partition 402 and the inner wall of the sampling box 401. One side of the first partition 402 is a sampling chamber 404. The space enclosed between the second partition 403 and the first partition 402, and located below the second partition 403, is an air chamber 405. Above the second partition 403 is a counterweight chamber 406. A counterweight 407 is fixedly connected to the top of the second partition 403. Handles 408 are symmetrically fixedly connected to the top of the sampling box 401. An air injection tube 409 communicating with the air chamber 405 is fixedly inserted into one outer side of the sampling box 401. A sampling tube 409 communicating with the sampling chamber 405 is fixedly inserted into the bottom of the sampling box 401. The drain pipe 410 and air injection pipe 409 connected to the cavity 404 are all equipped with solenoid valves on their outer walls. A water inlet pipe 411 connected to the sampling cavity 404 is fixedly inserted into one outer side of the sampling box 401. A first annular groove 412 is opened on the inner wall of the water inlet pipe 411, and a second annular groove 413 is opened on the outer wall of the water inlet pipe 411, which is coaxial with the first annular groove 412. An annular sealing groove 414 is opened on one inner side of the sampling cavity 404, which is connected to the outer side of the water inlet pipe 411. A first sliding groove 415 is opened on one inner side of the counterweight cavity 406. A sliding plate 416 is slidably connected to the inner wall of the sampling cavity 404. A guide rod 417 extending to the outside of the sampling box 401 is fixedly connected to the top of the sliding plate 416. A second baffle 418 is fixedly connected to the end of the guide rod 417. A first wedge block 419 is fixedly connected to the top of the sliding plate 416.

[0031] A sealing assembly 5 is provided inside the sampling chamber 404. The sealing assembly 5 includes a first square rod 501 that is slidably connected to the first partition 402. A sealing plate 502 is fixedly connected to one end of the first square rod 501. An annular sleeve 503 that engages with an annular sealing groove 414 is fixedly connected to one side of the sealing plate 502. A circular plate 504 located inside the air chamber 405 is fixedly connected to the outer wall of the first square rod 501. A second wedge block 505 is fixedly connected to one side of the circular plate 504. A first return spring 506 sleeved on the first square rod 501 is fixedly connected between the circular plate 504 and the air chamber 405. A sealing trigger assembly 6 is provided inside the counterweight chamber 406. The sealing trigger assembly 6 includes a lead screw 601 that is rotatably connected to the top of the counterweight chamber 406. A gear 602 is fixedly connected to the outer wall of the lead screw 601. A second square rod 603 extending into the sampling chamber 404 is slidably connected to one inner side of the counterweight chamber 406. A first abutment rod 604 that abuts against the first wedge block 419 is fixedly connected to one end of the second square rod 603. A toothed plate 605 that meshes with the gear 602 is fixedly connected to the other end of the second square rod 603. A second return spring 606 is fixedly connected between the toothed plate 605 and the counterweight chamber 406. A lifting plate 607 that slides with the first slide groove 415 is threadedly connected to the outer wall of the lead screw 601. An L-shaped plate 608 is fixedly connected to the bottom of the lifting plate 607. A second abutment rod 609 that penetrates into the air chamber 405 and abuts against the second wedge block 505 is fixedly connected to the bottom of the L-shaped plate 608.

[0032] The operation process of this embodiment is as follows: Initially, the first return spring 506 is in a compressed state. Under the elastic force of the first return spring 506, the circular plate 504 is pressed against the first partition plate 402. At the same time, the sealing plate 502 is pressed against the inner wall of the sampling chamber, and the annular sleeve 503 is inserted into the annular sealing groove 414, so that the sealing plate 502 completes the sealing of the water inlet pipe 411. Before sampling the water at a certain depth, gas is injected into the air chamber 405 through the air injection pipe 409 so that the pressure inside the air chamber 405 matches the certain depth of the water being sampled. Then, the sampling component 4 is released into the water through the winding assembly 1. With the use of the meter counter 113, the sampling component 4 is accurately released into the water at the specified depth. After a certain depth, the pressure inside the air chamber 405 reaches a dynamic equilibrium with the water pressure at this depth. The sampling component 4 is then controlled to continue descending to a further depth (at this point, the position of the sampling component 4 is consistent with the target water sampling depth; this descent depth can be precisely controlled by the meter counter 113). At this point, the target water pressure is greater than the pressure inside the air chamber 405. Under the action of this water pressure, the water at the target depth squeezes the sealing plate 502, causing it to detach from the inner wall of the sampling chamber 404. This leaves the inlet pipe 411 unblocked, allowing the water at this target depth to enter the sampling chamber 404 through the inlet pipe 411. The water level inside the sampling chamber rises continuously, causing the water to move upwards against the sliding plate 416, thereby driving... The first wedge block 419 moves upward, causing it to abut against the first abutment rod 604. This moves the first abutment rod 604 closer to the counterweight cavity 406, causing it to move via the second square rod 603 away from the sampling cavity 404 (during this process, the second return spring 606 is compressed). The toothed plate 605 engages, causing the gear 602 to rotate, which in turn rotates the lead screw 601. The lead screw 601 then moves the lifting plate 607 downward, which in turn moves the second abutment rod 609 downward via the L-shaped plate 608. This causes the second abutment rod 609 to abut against the second wedge block 505, which in turn moves the circular plate 504 and the sealing plate 502 closer to the water inlet pipe 411 until sampling occurs. The cavity 404 is filled with water. At this time, the sealing plate 502 fits perfectly against the inner wall of the sampling cavity 404, sealing the water inlet pipe 411. Then, the winding assembly 1 is controlled to work, pulling the sampling assembly 4 out of the water, thereby completing the collection of water samples at the specified water depth. During the process of exiting the water, as the diving depth of the sampling assembly 4 decreases, the water pressure it experiences decreases. Combined with the pressure inside the air cavity 405, the sealing plate 502 fits more firmly against the end of the water inlet pipe 411, thereby improving the sealing performance of the sampling assembly 4. By controlling the pressure inside the air cavity 405 and using the winding assembly 1, this device can collect water samples at different depths in the water, thereby improving the accuracy of the samples.

[0033] Example 4, please refer to Figure 1-14This fourth embodiment improves upon the first embodiment as follows: a protective component 7 is provided on the water inlet pipe 411. The protective component 7 includes an annular magnet plate 701 rotatably connected to the outer wall of the water inlet pipe 411, and screws 702 symmetrically fixed to one side of the annular magnet plate 701. The protective component 7 also includes a filter cover 703 threadedly connected to the water inlet pipe 411, a scraper 704 slidably connected between the two screws 702 and in contact with the filter cover 703, and a nut 705 threadedly connected to the outer wall of the screws 702 and in contact with the scraper 704. The protective component 7 also includes a rotating column 706 rotatably connected to the inner wall of the water inlet pipe 411, and one side of the rotating column 706... The protective component 7 includes a ring plate 708 rotatably connected to the inner wall of the water inlet pipe 411. The ring plate 708 is rotatably engaged with the first ring groove 412. The ring plate 708 is made of iron material that can be attracted by the ring magnet plate 701. A number of through holes 709 are opened through one side of the ring plate 708. A guide plate 710 rotatably connected to one side of the ring plate 708 is arranged in a circular array and cooperates with the oblique flow channels 707. The display screen 114 is equipped with a PLC controller. The PLC controller is electrically connected to the display screen 114, the motor 106, and the solenoid valve through wires.

[0034] The operation process of this embodiment is as follows: When the water enters the sampling chamber 404 through the inlet pipe 411, the water first passes through the inclined guide channel 707 on the rotating column 706 to generate a vortex, which then impacts the guide plate 710, causing the guide plate 710 to rotate. Further, the annular plate 708 drives the annular magnet plate 701 to rotate, and the annular magnet plate 701 drives the scraper 704 to rotate through the two screws 702. The scraper 704 cleans the surface of the filter cover 703, preventing impurities in the water from clogging the filter cover 703, thereby improving the cleanliness of water sampling and the smoothness of collection.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A composite water source circulating water sampling device, comprising a winding assembly (1), wherein a plug-in assembly (2) is installed on the winding assembly (1), a snap-fit ​​assembly (3) is plugged into the plug-in assembly (2), and a sampling assembly (4) is installed at the bottom of the snap-fit ​​assembly (3). Its features are: The winding assembly (1) is used to release and retract the sampling assembly (4). The winding assembly (1) is equipped with a meter counting function, which can accurately control the sampling assembly (4) to collect water samples in water at different depths. The plug-in assembly (2) works in conjunction with the snap-fit ​​assembly (3) to enable the sampling assembly (4) to be quickly installed and removed from the winding assembly (1); The sampling component (4) can accurately sample water at a specific depth by using the combination of air pressure and water pressure.

2. The composite water source circulating water sampling device according to claim 1, characterized in that, The winding assembly (1) includes a base (101), a plurality of support columns (102) are symmetrically fixedly connected to the bottom of the base (101), and each support column (102) is equipped with a caster wheel (103) with a foot brake at the bottom. A first upright plate (104) is symmetrically fixedly connected to the top of the base (101), and a winding roller (105) is rotatably connected between the two first upright plates (104). A motor (106) is fixedly connected to one side of one of the first upright plates (104), and the output end of the motor (106) passes through the first upright plate (104) and is fixedly connected to the output shaft of the winding roller (105). A fixing plate (107) is fixedly connected to the top of the base (101). A second upright plate (108) is symmetrically fixedly connected to one side of the fixing plate (107). A first guide roller (109) and a second guide roller (110) are rotatably connected between the two second upright plates (108). A traction rope (111) passing through the second guide roller (110) and the first guide roller (109) is wound around the outer wall of the winding roller (105). A connector (112) is fixedly connected to the end of the traction rope (111). A meter counter (113) is fixedly connected to one side of one of the second upright plates (108). The output shaft of the meter counter (113) is fixedly connected to the output shaft of the second guide roller (110). A display screen (114) is fixedly connected to the top of the base (101).

3. The composite water source circulating water sampling device according to claim 2, characterized in that, The plug-in assembly (2) includes a connecting post (201) fixedly connected to the connector (112), a plug-in post (202) fixedly connected to the bottom of the connecting post (201), a calibration block (203) symmetrically fixedly connected to the outer wall of the plug-in post (202), a groove (204) symmetrically opened on the outer wall of the plug-in post (202), a plug rod (205) slidably connected to the inner wall of the groove (204), and a first spring (206) fixedly connected between the plug rod (205) and the groove (204).

4. The composite water source circulating water sampling device according to claim 3, characterized in that, The snap-fit ​​assembly (3) includes a cylindrical tube (301) that slides with the plug post (202). The inner wall of the cylindrical tube (301) is symmetrically provided with limiting grooves (302) that slide with the two plug rods (205). The inner wall of the cylindrical tube (301) is provided with two arc-shaped grooves (303) that are arranged in a circumferential array and connected to the limiting grooves (302). The arc-shaped grooves (303) slide with the corresponding plug rods (205). The outer wall of the cylindrical tube (301) is symmetrically provided with a locking hole (304) that communicates with the arc-shaped groove (303) and is engaged with the insertion rod (205). The outer wall of the cylindrical tube (301) is symmetrically slidably connected with a trigger rod (305). The trigger rod (305) is slidably engaged with the locking hole (304). One end of the trigger rod (305) is fixedly connected with a first baffle (306). A second spring (307) sleeved on the trigger rod (305) is fixedly connected between the first baffle (306) and the cylindrical tube (301).

5. The composite water source circulating water sampling device according to claim 4, characterized in that, The sampling assembly (4) includes a sampling box (401) fixedly connected to the bottom of a cylindrical tube (301). A first partition (402) is fixedly connected to the inner wall of the sampling box (401). A second partition (403) is fixedly connected between the first partition (402) and the inner wall of the sampling box (401). One side of the first partition (402) is a sampling chamber (404). The space enclosed between the second partition (403) and the first partition (402) and located below the second partition (403) is an air chamber (405). Above the second partition (403) is a counterweight chamber (406). A counterweight block (407) is fixedly connected to the top of the second partition (403).

6. The composite water source circulating water sampling device according to claim 5, characterized in that, The sampling box (401) has handles (408) symmetrically fixedly connected to its top. An injection tube (409) connected to the air chamber (405) is fixedly inserted into one outer side of the sampling box (401). A drain tube (410) connected to the sampling chamber (404) is fixedly inserted into the bottom of the sampling box (401). Solenoid valves are installed on the outer walls of both the injection tube (409) and the drain tube (410). A handle (408) connected to the air chamber (405) is fixedly inserted into one outer side of the sampling box (401). The sampling chamber (404) is connected to the water inlet pipe (411). The inner wall of the water inlet pipe (411) is provided with a first annular groove (412). The outer wall of the water inlet pipe (411) is provided with a second annular groove (413) that is coaxial with the first annular groove (412). The inner side of the sampling chamber (404) is provided with an annular sealing groove (414) that is parallel to the outer side of the water inlet pipe (411). The inner side of the counterweight chamber (406) is provided with a first sliding groove (415). The inner wall of the sampling chamber (404) is slidably connected to a slide plate (416), and the top of the slide plate (416) is fixedly connected to a guide rod (417) that extends through to the outside of the sampling box (401). The end of the guide rod (417) is fixedly connected to a second baffle (418), and the top of the slide plate (416) is fixedly connected to a first wedge block (419).

7. The composite water source circulating water sampling device according to claim 6, characterized in that, The sampling chamber (404) is provided with a sealing assembly (5). The sealing assembly (5) includes a first square rod (501) that is slidably connected to the first partition (402). One end of the first square rod (501) is fixedly connected to a sealing plate (502). One side of the sealing plate (502) is fixedly connected to an annular sleeve (503) that is inserted into the annular sealing groove (414). The outer wall of the first square rod (501) is fixedly connected to a circular plate (504) located inside the air chamber (405). One side of the circular plate (504) is fixedly connected to a second wedge block (505). A first return spring (506) sleeved on the first square rod (501) is fixedly connected between the circular plate (504) and the air chamber (405).

8. The composite water source circulating water sampling device according to claim 7, characterized in that, The counterweight cavity (406) is equipped with a sealing trigger assembly (6). The sealing trigger assembly (6) includes a lead screw (601) rotatably connected to the top of the counterweight cavity (406). A gear (602) is fixedly connected to the outer wall of the lead screw (601). A second square rod (603) extending into the sampling cavity (404) is slidably connected to one inner side of the counterweight cavity (406). One end of the second square rod (603) is fixedly connected to a first abutment rod (604) that abuts against the first wedge block (419). The other end is fixedly connected to a toothed plate (605) that meshes with the gear (602). A second return spring (606) is fixedly connected between the toothed plate (605) and the counterweight cavity (406). The outer wall of the lead screw (601) is threadedly connected to a lifting plate (607) that slides with the first slide groove (415). An L-shaped plate (608) is fixedly connected to the bottom of the lifting plate (607). A second abutment (609) is fixedly connected to the bottom of the L-shaped plate (608) that penetrates into the air cavity (405) and abuts against the second wedge block (505).

9. A composite water source circulating water sampling device according to claim 8, characterized in that, The water inlet pipe (411) is provided with a protective component (7). The protective component (7) includes an annular magnet plate (701) rotatably connected to the outer wall of the water inlet pipe (411). A screw (702) is symmetrically fixed to one side of the annular magnet plate (701). The protective component (7) also includes a filter cover (703) threadedly connected to the water inlet pipe (411). A scraper (704) that contacts the filter cover (703) is slidably connected between the two screws (702). A nut (705) that abuts against the scraper (704) is threadedly connected to the outer wall of the screw (702). The protective assembly (7) further includes a rotating column (706) rotatably connected to the inner wall of the water inlet pipe (411). The rotating column (706) has a plurality of oblique guide grooves (707) arranged in a circular array on one side. The protective assembly (7) further includes an annular plate (708) rotatably connected to the inner wall of the water inlet pipe (411). The annular plate (708) is rotatably engaged with the first annular groove (412). The annular plate (708) is made of iron material that can be attracted by an annular magnet plate (701). The annular plate (708) has a plurality of through holes (709) arranged in a circular array on one side. The annular plate (708) is fixedly connected to a guide plate (710) arranged in a circular array and engaged with the oblique guide grooves (707) on one side.

10. A method for sampling composite water source circulating water, applied to the composite water source circulating water sampling device described in claim 9, characterized in that, Includes the following steps: S01: First, the snap-fit ​​component (3) on the sampling component (4) is installed on the plug-in component (2), thereby realizing the installation of the sampling component (4) on the winding component (1); S02: Next, based on the depth of the sampled water body, gas is injected into the air chamber (405) through the air injection pipe (409) so that the pressure inside the air chamber (405) matches the depth of the sampled water body; S03: Subsequently, control the winding assembly (1) to work, and release the traction rope (111) to slowly release the sampling assembly (4) into the sampling water body. With the use of the meter counter (113), the depth of the sampling assembly (4) in the water body can be accurately controlled; S04: Then, after the sampling component (4) descends to the specified depth, the pressure in the water is greater than the pressure inside the air chamber (405), so that the water enters the sampling chamber (404) until the sampling chamber (404) is full of water. Then, the sealing component (5) and the sealing trigger component (6) are used together to seal the water inlet pipe (411). Finally, the traction rope (111) is wound up to lift the sampling component (4), thereby completing the sampling of the water.

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