Water quality detection continuous sampling device

Abstract

The application discloses a water quality detection continuous sampling device and relates to the technical field of water sample collection. The device comprises a sampling cylinder, an extension mechanism capable of being inserted into sludge is arranged outside the sampling cylinder, a sealing mechanism capable of avoiding sample overflow is arranged outside the sampling cylinder, a locking mechanism capable of avoiding the mixing of external water sources and samples is arranged inside the sampling cylinder, and a stabilizing mechanism capable of avoiding the deviation of the sampling cylinder is arranged outside the extension mechanism. The extension mechanism is provided with a combination design of a conical sharp cone and a hollow cylinder, can penetrate through the soft sludge layer at the bottom of a water body, and the water inlet is arranged on the side wall of the hollow cylinder, thereby breaking the limitation of traditional samplers that can only obtain overlying water samples. The inner side of the blocking plate in the extension mechanism is provided with a sealing rubber strip, the water inlet is completely sealed in a non-sampling state, the exchange between the sample and external water bodies in the transportation process is blocked, dilution or pollution is avoided, and the authenticity of water quality monitoring data is improved.

Description

Technical Field

[0001] This invention relates to the field of water sampling technology, specifically to a continuous water quality sampling device. Background Technology

[0002] In the fields of water treatment and environmental protection, water quality testing is a crucial task. Continuous monitoring of water quality allows for the timely detection and prevention of pollution sources, ensuring the safety of drinking water.

[0003] Traditional sampling equipment relies primarily on directly extracting water samples from below the surface. However, in areas with abundant silt, only samples can be collected above the silt, making it difficult to obtain samples from within the silt. Since the silt may contain even more pollutants, this sampling method can lead to significant discrepancies between test results and actual water quality, failing to accurately reflect the true condition of the water body.

[0004] Therefore, this invention proposes a continuous water quality sampling device to compensate for and improve the shortcomings of the prior art. Summary of the Invention

[0005] In view of the above problems, the present invention provides a continuous water quality sampling device, which can effectively solve the problem of difficulty in obtaining water samples from inside silt in the prior art. To achieve the above objective, the embodiments of this application provide the following technical solutions:

[0006] This invention discloses a continuous water quality sampling device, including a sampling tube, an extension mechanism that can be inserted into silt on the outside of the sampling tube, a sealing mechanism to prevent sample spillage on the outside of the sampling tube, a locking mechanism to prevent external water source from mixing with the sample on the inside of the sampling tube, and a stabilizing mechanism to prevent the sampling tube from shifting on the outside of the extension mechanism.

[0007] The extension mechanism includes a hollow cylinder that is slidably sleeved on the outside of the sampling cylinder. A conical tip is fixedly connected to the bottom of the hollow cylinder, and an inlet for water to enter is provided on the side of the hollow cylinder.

[0008] Furthermore, a sliding rod is symmetrically and fixedly connected to the bottom surface of the hollow cylinder, and a blocking plate for sealing the water inlet is slidably inserted into the outside of the sliding rod. A return spring is also sleeved on the outside of the sliding rod, and the return spring is located between the blocking plate and the bottom surface of the hollow cylinder.

[0009] Furthermore, both of the blocking plates are arc-shaped, and a sealing strip is fixedly connected to the side of the blocking plate near the hollow cylinder. The bottoms of the two blocking plates are fixedly connected to each other through a connecting plate.

[0010] Furthermore, the extension mechanism also includes a push rod extending into the hollow cylinder, with a handle fixedly connected to the top of the push rod.

[0011] Furthermore, the closing mechanism includes a cover plate that is slidably sleeved on the outside of the push rod for closing the top of the sampling cylinder, an annular outward-expanding plate fixedly connected to the side of the cover plate, and a blocking ring fixedly connected to the inner wall of the hollow cylinder for pushing the outward-expanding plate and the cover plate upward.

[0012] Furthermore, the closing mechanism also includes a compression spring that is slidably sleeved on the outside of the push rod, and a limit block is fixedly connected to the outside of the push rod. The compression spring is located between the limit block and the cover plate.

[0013] Furthermore, the locking mechanism includes an extension rod fixedly connected to the bottom of the push rod, a crossbar fixedly connected to the outside of the extension rod, and arc-shaped strips for blocking the two ends of the crossbar symmetrically fixedly connected to the inner wall of the sampling cylinder.

[0014] Furthermore, the locking mechanism also includes a threaded section at the bottom of the extension rod, and a threaded hole is provided on the bottom surface of the sampling cylinder, the threaded hole being threadedly connected to the threaded section.

[0015] Furthermore, the stabilizing mechanism includes a mounting plate fixedly connected to the outside of the hollow cylinder, a support rod rotatably connected to the outside of the mounting plate, and a circular tray fixedly connected to the end of the support rod away from the mounting plate.

[0016] Furthermore, the stabilizing mechanism also includes anchor bolts fixedly connected to the bottom of the tray, and each tray has an upwardly curved plate fixedly connected to its exterior.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This device, with its extension mechanism and combination of a conical tip and a hollow cylinder, can penetrate the soft silt layer at the bottom of the water body. The inlet is located on the side wall of the hollow cylinder and is equipped with an arc-shaped blocking plate driven by a return spring. After the silt is inserted, the blocking plate opens, allowing the pore water inside the silt to enter the sampling cylinder smoothly. After sampling, the blocking plate closes, breaking through the limitation of traditional samplers that can only obtain samples from the upper layer of water. The blocking plate in the extension mechanism has a sealing strip on the inside, ensuring that the inlet is completely sealed when not sampling, preventing the exchange of samples with external water bodies during transportation, avoiding dilution or contamination, ensuring the high fidelity of the submitted water samples, realizing the collection of pore water from the bottom sediment of the water body, and improving the authenticity of water quality monitoring data.

[0019] 2. This device is equipped with a sealing mechanism. The sealing mechanism, through the cooperation of the cover plate, the outer expansion plate and the blocking ring, automatically seals the top of the sampling cylinder when the push rod is lifted, which enhances the sealing reliability of the sampling cylinder and prevents the sample from leaking, diluting or being cross-contaminated with external water bodies during the lifting process, thereby improving the accuracy of the sample test results.

[0020] 3. This device is equipped with a locking mechanism that uses the mechanical locking of the crossbar and the arc-shaped bar to prevent the sampling tube from accidentally separating from the push rod assembly during the insertion of the sampling tube into the silt or during the lifting process, thus ensuring the structural integrity of the sampling process. It also achieves axial fixation by tightening the threaded section and the screw hole, which not only prevents the sampling tube from separating but also further blocks external water from seeping in from the bottom, ensuring the purity of the sample.

[0021] 4. This device is equipped with a stabilizing mechanism. When the device is pressed down and inserted into the silt, the tray rotates outward and unfolds, and the anchor rod is embedded in the bottom mud to form multi-point anchoring. This increases the contact area between the device and the bottom bed, disperses local pressure, and suppresses tilting or lateral displacement caused by unilateral settlement or water flow impact. This ensures that the sampling tube always penetrates vertically into the target layer, ensuring accurate sampling location. It is suitable for continuous operation in complex bottom waters such as lakes, estuaries, and ponds. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the invention from a first perspective.

[0024] Figure 2 This is a three-dimensional structural diagram of the invention from a second perspective.

[0025] Figure 3 This is a three-dimensional structural diagram of the extension mechanism in this invention.

[0026] Figure 4 This is a three-dimensional structural diagram of the closing mechanism in this invention.

[0027] Figure 5 This is a three-dimensional structural diagram of the locking mechanism in this invention.

[0028] Figure 6 In this invention Figure 5 Enlarged view of the structure at point A in the middle.

[0029] Figure 7 This is a three-dimensional structural diagram of the stabilizing mechanism in this invention.

[0030] The labels in the diagram represent: 10, sampling cylinder; 20, extension mechanism; 201, hollow cylinder; 202, cone; 203, inlet; 204, push rod; 205, handle; 206, slide rod; 207, return spring; 208, blocking plate; 209, connecting plate; 30, sealing mechanism; 301, cover plate; 302, compression spring; 303, limit block; 304, blocking ring; 305, outward plate; 40, locking mechanism; 401, extension rod; 402, threaded section; 403, screw hole; 404, crossbar; 405, arc strip; 50, stabilizing mechanism; 501, mounting plate; 502, support rod; 503, tray; 504, anchor bolt; 505, bending plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] The present invention will be further described below with reference to embodiments.

[0033] See Figures 1 to 7 This embodiment of a continuous water quality sampling device includes a sampling cylinder 10. The sampling cylinder 10 is provided with an extension mechanism 20 that can be inserted into silt on the outside. The sampling cylinder 10 is provided with a sealing mechanism 30 to prevent sample spillage on the outside. The sampling cylinder 10 is provided with a locking mechanism 40 to prevent external water source from mixing with the sample on the inside. The extension mechanism 20 is provided with a stabilizing mechanism 50 to prevent the sampling cylinder 10 from shifting.

[0034] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The extension mechanism 20 includes a hollow cylinder 201 that is slidably sleeved on the outside of the sampling cylinder 10. A conical tip 202 is fixedly connected to the bottom of the hollow cylinder 201, and an inlet 203 for water to enter is provided on the side of the hollow cylinder 201.

[0035] A sliding rod 206 is symmetrically and fixedly connected to the bottom surface of the hollow cylinder 201. A blocking plate 208 for sealing the water inlet 203 is slidably inserted into the outside of the sliding rod 206. A return spring 207 is also sleeved on the outside of the sliding rod 206, and the return spring 207 is located between the blocking plate 208 and the bottom surface of the hollow cylinder 201.

[0036] Both of the blocking plates 208 are arc-shaped, and a sealing strip is fixedly connected to the side of the blocking plate 208 near the hollow cylinder 201. The bottoms of the two blocking plates 208 are fixedly connected to each other through a connecting plate 209.

[0037] The extension mechanism 20 also includes a push rod 204 extending into the hollow cylinder 201, with a handle 205 fixedly connected to the top of the push rod 204.

[0038] In actual operation, when no sampling is being performed, the sampling cylinder 10 is in an empty state, and the inside is clean and dry. The extension mechanism 20 is sleeved on the outside of the sampling cylinder 10. At this time, the hollow cylinder 201 is slidably sleeved on the outer periphery of the sampling cylinder 10, the pointed cone 202 is located at the bottom end, and is conical in shape, which is conducive to penetrating the silt. The water inlet 203 is opened in the lower middle part of the side wall of the hollow cylinder 201. The blocking plate 208 is tightly attached to the water inlet 203 under the action of the return spring 207. The sealing strip on the inner side of the blocking plate 208 ensures complete sealing. The push rod 204 passes through the cover plate 301, the compression spring 302, and the limit block 303. The top of the push rod 204 is connected to the handle 205.

[0039] The equipment is lowered into the target water area and penetrates the silt. The operator holds the hollow cylinder 201 and vertically lowers the equipment into the water area to be tested. The pointed cone 202 first contacts the surface of the silt at the bottom of the water and penetrates the soft silt layer by means of its conical structure, its own weight, and the applied pressure. The operator holds the handle 205 and slowly presses down the push rod 204, which moves the entire extension mechanism 20 downward. At this time, the blocking plate 208 tightly fits the inlet 203 under the action of the return spring 207. The sealing strip on the inner side of the blocking plate 208 ensures complete sealing, and the inlet 203 remains sealed to prevent the upper water or mud from entering prematurely. The sealing strip on the inner side of the blocking plate 208 in the extension mechanism 20 ensures that the inlet 203 is completely sealed when not sampling, blocking the exchange of samples with external water bodies during transportation, avoiding dilution or contamination, ensuring the high fidelity of the water sample submitted for testing, realizing the collection of pore water from the bottom sediment of the water body, and improving the authenticity of water quality monitoring data. Once the device reaches the target depth, continue pressing down on the handle 205 to move the push rod 204 further down relative to the hollow cylinder 201. The push rod 204 drives the sampling cylinder 10 to push the connecting plate 209 downward. The connecting plate 209 drives the two arc-shaped blocking plates 208 to slide downward along the slide rod 206. The blocking plates 208 disengage from the inlet 203, and the inlet 203 opens. Under the action of hydrostatic pressure or slight negative pressure, the pore water inside the sludge flows into the inner cavity of the hollow cylinder 201 through the inlet 203 and enters the sampling cylinder 10.

[0040] After the pore water fills the sampling tube 10, a preset time can be used to determine when to stop pressing down and slowly lift the handle 205. The push rod 204 begins to move upward, the blocking plate 208 loses its pushing force, and automatically slides upward along the slide rod 206 to reset under the action of the return spring 207. The blocking plate 208 then covers the water inlet 203 again, and the sealing strip presses tightly onto the cover, completely sealing the water inlet channel to prevent sample leakage or external water infiltration. Continue lifting the handle 205, and the entire sampling tube 10 is vertically pulled out of the hollow cylinder 201. Since the water inlet 203 is sealed and the top cover plate 301 of the sampling tube 10 is locked, the sample is in a sealed and isolated state throughout the process, with no dilution, no contamination, and no leakage. After the sampling tube 10 is lifted out of the water, the sampling tube 10 can be disassembled or the sample can be directly transferred to the detection container.

[0041] See Figure 1 , Figure 3 and Figure 4 The closing mechanism 30 includes a cover plate 301 that is slidably sleeved on the outside of the push rod 204 for closing the top of the sampling cylinder 10. An annular outer expansion plate 305 is fixedly connected to the side of the cover plate 301. A blocking ring 304 is fixedly connected to the inner wall of the hollow cylinder 201 for pushing the outer expansion plate 305 and the cover plate 301 upward.

[0042] The closing mechanism 30 also includes a compression spring 302 that is slidably sleeved on the outside of the push rod 204. A limit block 303 is also fixedly connected to the outside of the push rod 204. The compression spring 302 is located between the limit block 303 and the cover plate 301.

[0043] In actual operation, when no sample is taken, the closing mechanism 30 is in the closed state: the cover plate 301 is located at the top of the sampling cylinder 10, closing the cylinder opening, and the outer extension plate 305 is sleeved on the push rod 204 together with the cover plate 301.

[0044] During sampling, pressing down on the handle 205 causes the push rod 204 to move further down relative to the hollow cylinder 201. As the push rod 204 drives the sampling cylinder 10 to push the connecting plate 209 downwards, the outer extension plate 305 outside the cover plate 301 is blocked by the blocking ring 304, causing the cover plate 301 to detach from the top of the sampling cylinder 10. At this time, the sampling cylinder 10 is in the open state. When the sampling cylinder 10 pushes the blocking plate 208 to continue to descend, the pore water inside the sludge flows into the inner cavity of the hollow cylinder 201 through the inlet 203 under the action of hydrostatic pressure or slight negative pressure, and enters the interior of the sampling cylinder 10.

[0045] After sampling, lift the handle 205, and the entire sampling cylinder 10 is pulled vertically out of the hollow cylinder 201. Under the elastic force of the compression spring 302, the cover plate 301 descends along the push rod 204, and the cover plate 301 re-closes the top of the sampling cylinder 10 to prevent the external water source from mixing with the sample during the process of lifting the sampling cylinder 10 after sampling.

[0046] See Figure 1 , Figure 2 , Figure 5 and Figure 6 The locking mechanism 40 includes an extension rod 401 fixedly connected to the bottom of the push rod 204. A crossbar 404 is fixedly connected to the outside of the extension rod 401. Arc-shaped strips 405 for blocking both ends of the crossbar 404 are symmetrically fixedly connected to the inner wall of the sampling cylinder 10.

[0047] The locking mechanism 40 also includes a threaded section 402 at the bottom of the extension rod 401, and a screw hole 403 is provided on the bottom surface of the sampling cylinder 10, which is threadedly connected to the threaded section 402.

[0048] In actual operation, when no sample is being taken, the push rod 204 is separated from the sampling cylinder 10.

[0049] During the sampling process, the threaded section 402 at the bottom of the extension rod 401 is always screwed into the threaded hole 403 on the bottom surface of the sampling cylinder 10 to achieve axial locking and bottom sealing. After the crossbar 404 descends to below the arc-shaped bar 405, the arc-shaped bar 405 will lock the two ends of the crossbar 404 to form a mechanical anti-detachment lock.

[0050] After sampling is completed, the sampling cylinder 10 can be rotated to separate it from the bottom of the push rod 204, and then the sample can be poured out and transferred to the detection container.

[0051] See Figure 1 , Figure 2 and Figure 7 The stabilizing mechanism 50 includes a mounting plate 501 fixedly connected to the outside of the hollow cylinder 201. A support rod 502 is rotatably connected to the outside of the mounting plate 501. A circular tray 503 is fixedly connected to one end of the support rod 502 away from the mounting plate 501.

[0052] The stabilizing mechanism 50 also includes an anchor rod 504 fixedly connected to the bottom of the tray 503, and each tray 503 is externally fixedly connected to an upwardly curved plate 505.

[0053] In actual operation, when no sampling is performed, the stabilizing mechanism 50 is in a retracted state: the tray 503 is close to the outer wall of the hollow cylinder 201, the support rod 502 rotates around the mounting plate 501 and is in a folded position, and the anchor rod 504 and the bending plate 505 do not contact the base bed.

[0054] During sampling, manually rotate and unfold the support rod 502 in the stabilizing mechanism 50 outward, open the tray 503 outward, insert the anchor rod 504 into the surrounding silt, and bend the plate 505 upward to form a "grip hook" to increase the support area and prevent the equipment from tilting or shifting laterally.

[0055] Working principle:

[0056] During sampling, the operator holds the hollow cylinder 201 and vertically lowers the device into the water area to be tested. The pointed cone 202 first contacts the surface of the bottom silt and penetrates the soft silt layer by means of its conical structure, its own weight, and applied pressure. The operator holds the handle 205 and slowly presses down the push rod 204, causing the entire extension mechanism 20 to move downwards. The blocking plate 208, under the action of the return spring 207, tightly fits against the inlet 203. The sealing strip on the inner side of the blocking plate 208 ensures a complete seal, keeping the inlet 203 sealed to prevent upper water or mud from entering prematurely. When the device reaches the target depth, the operator manually rotates the support rod 502 in the stabilizing mechanism 50 outwards, causing the tray 503 to open outwards. The anchor rod 504 inserts into the surrounding silt, and the bending plate 505 tilts upwards to form a "grip hook," increasing the support area and preventing the device from tilting or shifting laterally. The operator continues to press down on the handle 205, making... The push rod 204 moves further down relative to the hollow cylinder 201, and the push rod 204 drives the sampling cylinder 10 to push the connecting plate 209 downward. The connecting plate 209 drives the two arc-shaped blocking plates 208 to slide downward along the slide rod 206. The blocking plates 208 disengage from the inlet 203, and the inlet 203 opens. Under the action of hydrostatic pressure or slight negative pressure, the pore water inside the sludge flows into the inner cavity of the hollow cylinder 201 through the inlet 203 and enters the sampling cylinder 10. When the sampling cylinder 10 descends to the bottom along the hollow cylinder 201, the outer extension plate 305 outside the cover plate 301 is blocked by the blocking ring 304, causing the cover plate 301 to detach from the top of the sampling cylinder 10. At this time, the sampling cylinder 10 is in the open state, and the pore water inside the sludge flows into the inner cavity of the hollow cylinder 201 through the inlet 203 under the action of hydrostatic pressure or slight negative pressure and enters the sampling cylinder 10. During the sampling process, the threaded section 402 at the bottom of the extension rod 401 is always screwed into the threaded hole 403 on the bottom surface of the sampling cylinder 10 to achieve axial locking and bottom sealing. After the crossbar 404 descends to below the arc-shaped bar 405, the arc-shaped bar 405 will lock the two ends of the crossbar 404 to form a mechanical anti-detachment lock.

[0057] After sampling, lift the handle 205, and the push rod 204 begins to move upward. The blocking plate 208 loses its pushing force and automatically slides upward along the slide rod 206 under the action of the reset spring 207. The blocking plate 208 covers the water inlet 203 again, and the sealing strip presses the cover tightly, completely sealing the water inlet channel to prevent sample leakage or external water seepage. At the same time, under the elastic force of the compression spring 302, the cover plate 301 descends along the push rod 204 and re-closes the top of the sampling cylinder 10 to prevent external water from mixing with the sample during the process of lifting the sampling cylinder 10 after sampling. After sampling is completed, the sampling cylinder 10 can be rotated to separate from the bottom of the push rod 204, and then the sample can be poured out and transferred to the detection container.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A continuous water quality sampling device, characterized in that, The sample includes a sampling tube (10), an extension mechanism (20) that can be inserted into the sludge is provided on the outside of the sampling tube (10), a sealing mechanism (30) that prevents the sample from overflowing is provided on the outside of the sampling tube (10), a locking mechanism (40) that prevents the external water source from mixing with the sample is provided inside the sampling tube (10), and a stabilizing mechanism (50) that prevents the sampling tube (10) from shifting is provided on the outside of the extension mechanism (20). The extension mechanism (20) includes a hollow cylinder (201) that is slidably sleeved outside the sampling cylinder (10). A conical cone (202) is fixedly connected to the bottom of the hollow cylinder (201), and an inlet (203) for water to enter is provided on the side of the hollow cylinder (201).

2. The continuous water quality sampling device according to claim 1, characterized in that, The hollow cylinder (201) has a sliding rod (206) symmetrically fixedly connected to its bottom surface. A blocking plate (208) for sealing the water inlet (203) is slidably inserted into the outside of the sliding rod (206). A return spring (207) is also sleeved on the outside of the sliding rod (206), and the return spring (207) is located between the blocking plate (208) and the bottom surface of the hollow cylinder (201).

3. The continuous water quality sampling device according to claim 2, characterized in that, Both of the blocking plates (208) are arc-shaped, and a sealing strip is fixedly connected to the side of the blocking plate (208) near the hollow cylinder (201). The bottoms of the two blocking plates (208) are fixedly connected to each other through a connecting plate (209).

4. The continuous water quality sampling device according to claim 1, characterized in that, The extension mechanism (20) also includes a push rod (204) extending into the hollow cylinder (201), with a handle (205) fixedly connected to the top of the push rod (204).

5. A continuous water quality sampling device according to claim 4, characterized in that, The closing mechanism (30) includes a cover plate (301) that is slidably sleeved on the outside of the push rod (204) for closing the top of the sampling cylinder (10). An annular outer plate (305) is fixedly connected to the side of the cover plate (301). A blocking ring (304) is fixedly connected to the inner wall of the hollow cylinder (201) for pushing the outer plate (305) and the cover plate (301) upward.

6. The continuous water quality sampling device according to claim 5, characterized in that, The closing mechanism (30) also includes a compression spring (302) that is slidably sleeved on the outside of the push rod (204). A limit block (303) is also fixedly connected to the outside of the push rod (204). The compression spring (302) is located between the limit block (303) and the cover plate (301).

7. The continuous water quality sampling device according to claim 1, characterized in that, The locking mechanism (40) includes an extension rod (401) fixedly connected to the bottom of the push rod (204), a crossbar (404) fixedly connected to the outside of the extension rod (401), and arc-shaped strips (405) for blocking the two ends of the crossbar (404) symmetrically fixedly connected to the inner wall of the sampling cylinder (10).

8. A continuous water quality sampling device according to claim 7, characterized in that, The locking mechanism (40) also includes a threaded section (402) at the bottom of the extension rod (401), and a screw hole (403) is provided on the bottom surface of the sampling cylinder (10), and the screw hole (403) is threadedly connected to the threaded section (402).

9. A continuous water quality sampling device according to claim 1, characterized in that, The stabilizing mechanism (50) includes a mounting plate (501) fixedly connected to the outside of the hollow cylinder (201), a support rod (502) rotatably connected to the outside of the mounting plate (501), and a circular tray (503) fixedly connected to one end of the support rod (502) away from the mounting plate (501).

10. A continuous water quality sampling device according to claim 9, characterized in that, The stabilizing mechanism (50) also includes an anchor rod (504) fixedly connected to the bottom of the tray (503), and each tray (503) is fixedly connected to an upwardly curved plate (505).

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