Multilayer water quality continuous sampling device

Abstract

The invention relates to the technical field of water quality sampling, and discloses a multilayer water quality continuous sampling device which comprises a base, a moving mechanism is arranged on the right side of the top of the base, the moving mechanism comprises a supporting rod, and the supporting rod is fixedly connected to the right side of the top of the base. The device comprises a supporting rod, a plurality of hollow plates are slidably connected to the outer side of the supporting rod, sampling bottles are fixedly connected to the left sides of the hollow plates, clamping grooves are formed in the front side and the rear side of the supporting rod, rotating rods are rotatably connected to the front sides and the rear sides of the interiors of the hollow plates, and clamping blocks are fixedly connected to the outer sides of the rotating rods. And the plurality of clamping blocks are respectively clamped with the corresponding clamping grooves. The two-way threaded rod is rotated to drive the sliding block to move, and the clamping block is driven to rotate through the connecting plate, so that the clamping block is separated from the clamping groove, the hollow plate can be moved, the position of the sampling bottle is moved, and the sampling depth can be freely adjusted as required.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality sampling, and particularly to a multi-layer water quality continuous sampling device. Background Art

[0002] Fishery aquaculture is a production activity of breeding, cultivating and farming aquatic organisms in an artificially controlled water environment, which not only provides a high-quality protein source for humans, but also reduces the fishing pressure on wild fishery resources and realizes the sustainable utilization of aquatic biological resources.

[0003] In fishery aquaculture, water quality is a key factor affecting the growth, health and aquaculture benefits of fish. Different aquaculture varieties have different requirements for water quality. For example, indicators such as temperature, pH value, dissolved oxygen, ammonia nitrogen and nitrite need to be controlled within an appropriate range. At this time, a water quality sampling device is required to facilitate the staff to sample and detect the aquaculture water.

[0004] Currently, the water quality sampling devices on the market mainly consist of a sampling bottle, a control cover plate and a counterweight. When in use, the water quality sampling device is placed in the water body where sampling is required. The counterweight can keep the water quality sampling device stable. By opening the control cover plate, sampling water can be added to the sampling bottle, and the sampling bottle can be sealed through the control cover plate to complete the sampling work. However, when this device is in use, it is not convenient to accurately control the sampling depth, resulting in inconvenience for the staff to adjust the sampling depth. The prior art adds a depth adjustment device to the sampling bottle, enabling the staff to sample at different depths. However, since the staff often needs to sample different depths of the same water quality separately, the staff needs to use the water quality sampling device for sampling work multiple times. To solve the above problems, the prior art adopts the method of setting multiple sampling bottles at different heights of the sampling device, enabling different depths to be sampled separately in a single use. However, the sampling bottles of this device cannot be adjusted in height according to the needs of the staff, making it inconvenient for the staff to freely select the sampling position at different depths according to the needs, reducing the practicability of the device and not meeting the needs of users. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multi-layer water quality continuous sampling device, which solves the problem that it is inconvenient to freely select the sampling position according to the needs when the water quality continuous sampling device is in use.

[0006] To achieve the above object, the present invention is realized by the following technical solutions: A multi-layer water quality continuous sampling device, including a base, a moving mechanism is arranged on the right side of the top of the base, the moving mechanism is used to conveniently adjust the position of the sampling container, a control mechanism is arranged on the upper side of the base, the control mechanism is used to conveniently perform the sampling work on the water quality, a plurality of filtering mechanisms are arranged on the upper side of the base, and the filtering mechanisms are used to conveniently filter the sampled water;

[0007] The moving mechanism includes a support rod, the support rod is fixedly connected to the right side of the top of the base, a plurality of hollow plates are slidably connected to the outside of the support rod, sampling bottles are fixedly connected to the left sides of the plurality of hollow plates, clamping grooves are formed in the front and rear sides of the support rod, rotating rods are rotatably connected to the front and rear sides of the interiors of the plurality of hollow plates, clamping blocks are fixedly connected to the outside of the plurality of rotating rods, and the plurality of clamping blocks are respectively engaged with the corresponding clamping grooves. Fixed components are arranged on the right sides of the interiors of the plurality of hollow plates.

[0008] Preferably, the control mechanism includes a hollow block, the hollow block is fixedly connected to the top of the support rod, a square column is rotatably connected to the bottom of the inner side of the hollow block, the bottom end of the square column penetrates through the hollow block, a plurality of fixing rods are fixedly connected to the outside of the square column at equal intervals, the plurality of fixing rods respectively penetrate through the corresponding sampling bottles, blocking pieces are fixedly connected to the upper and lower sides of the left ends of the plurality of fixing rods, water inlets are communicated with the left sides of the bottoms of the plurality of sampling bottles, air outlets are communicated with the left sides of the tops of the plurality of sampling bottles, and a rotating component is arranged inside the hollow block.

[0009] Preferably, the filtering mechanism includes a first filter screen, the plurality of first filter screens are respectively fixedly connected to the middle and lower parts of the inner sides of the corresponding water inlets, rotating columns are rotatably connected to the tops of the plurality of first filter screens, impellers are fixedly connected to the tops of the plurality of rotating columns, the bottom ends of the plurality of rotating columns penetrate through the corresponding first filter screens and are fixedly connected with scraping plates, and second filter screens are fixedly connected to the tops of the inner sides of the plurality of air outlets.

[0010] Preferably, the fixing component includes a connecting plate, the plurality of connecting plates are respectively slidably connected to the inner sides of the corresponding clamping blocks, a bidirectional threaded rod is rotatably connected to the right side of the interior of each of the plurality of hollow plates, the front ends of the plurality of bidirectional threaded rods penetrate through the corresponding hollow plates, sliders are threadedly connected to the front and rear sides of the outer walls of the plurality of bidirectional threaded rods, and the left sides of the plurality of sliders are respectively rotatably connected to the corresponding connecting plates.

[0011] Preferably, the rotating component includes a worm gear, the worm gear is fixedly connected to the middle and upper part of the outside of the square column, a transmission rod is rotatably connected to the right side of the hollow block, the left end of the transmission rod penetrates through the hollow block and is fixedly connected with a worm, and the worm is meshed with the worm gear.

[0012] Preferably, the moving mechanism further includes sliding grooves, and a plurality of the sliding grooves are respectively formed in the front and rear sides of the right end inside the corresponding hollow plate, and the right sides of the plurality of sliders are respectively slidably connected to the corresponding sliding grooves.

[0013] Preferably, the moving mechanism further includes a plurality of first knobs, and the plurality of first knobs are respectively fixedly connected to the front ends of the corresponding bidirectional threaded rods, and the size of the clamping block matches the size of the clamping groove.

[0014] Preferably, the moving mechanism further includes a counterweight block, the counterweight block is fixedly connected to the bottom of the base, and observation windows are formed in the front sides of the plurality of sampling bottles.

[0015] Preferably, the control mechanism further includes a connecting rod, the connecting rod is fixedly connected to the top end of the square column, and the top end of the connecting rod penetrates through the hollow block and is fixedly connected with an indicating mark.

[0016] Preferably, the control mechanism further includes a second knob, the second knob is fixedly connected to the right end of the transmission rod, and a floating ring is fixedly connected to the outer bottom of the hollow block.

[0017] The present invention provides a multi-layer water quality continuous sampling device. It has the following beneficial effects:

[0018] 1. By rotating the bidirectional threaded rod of the present invention, the slider is driven to move, and the clamping block is driven to rotate through the connecting plate, so that the clamping block is disengaged from the clamping of the clamping groove, and then the hollow plate can be moved, so as to move the position of the sampling bottle, and the sampling depth can be freely adjusted as needed, improving the practicability of the device and meeting the needs of users.

[0019] 2. By rotating the transmission rod of the present invention to drive the worm to rotate, since the worm gear meshes with the worm, the worm gear will drive the square column to rotate accordingly, and then drive the baffle to rotate through the fixed rod, so as to open the water inlet and the air outlet. The sampling water will enter the sampling bottle through the water inlet, and the air in the sampling bottle will be discharged through the air outlet, so that the sampling bottle can be filled with the sampling water, improving the convenience of the device.

[0020] 3. The water entering the sampling bottle is filtered by the first filter screen of the present invention, and when the water flow passes through the water inlet, it will impact the impeller, and the impeller will rotate accordingly, and then drive the scraper to rotate through the rotating column, so as to scrape off the impurities accumulated on the first filter screen, so that the first filter screen will not be blocked, and the second filter screen can prevent impurities from entering the sampling bottle through the air outlet, so that the sampling water can be kept clean, reducing the workload of the staff. Description of the Drawings

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is the front view of the present invention;

[0023] Figure 3 is the partial structural sectional view of the present invention;

[0024] Figure 4 is Figure 3 the enlarged view of part A in

[0025] Figure 5 is the partial structural sectional view of the control mechanism of the present invention;

[0026] Figure 6 is the structural sectional view of the sampling bottle of the present invention;

[0027] Figure 7 is the partial structural sectional view of the filtering mechanism of the present invention;

[0028] Figure 8 is Figure 7 the enlarged view of part B in

[0029] Wherein, 1, base; 2, moving mechanism; 201, support rod; 202, hollow plate; 203, sampling bottle; 204, card slot; 205, rotating rod; 206, clamping block; 207, connecting plate; 208, bidirectional threaded rod; 209, slider; 210, sliding groove; 211, first knob; 212, observation window; 213, counterweight block; 3, control mechanism; 301, hollow block; 302, square column; 303, fixed rod; 304, baffle; 305, water inlet; 306, air outlet; 307, worm gear; 308, transmission rod; 309, worm; 310, connecting rod; 311, indicator; 312, second knob; 313, floating ring; 4, filtering mechanism; 401, first filter screen; 402, rotating column; 403, impeller; 404, scraper; 405, second filter screen. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Referring to Figure 2 , Figure 3 and Figure 4, an embodiment of the present invention provides a multi-layer water quality continuous sampling device, including a base 1. A moving mechanism 2 is arranged on the right side of the top of the base 1, and the moving mechanism 2 is used to conveniently adjust the position of the sampling container. A control mechanism 3 is arranged on the upper side of the base 1, and the control mechanism 3 is used to conveniently perform water quality sampling work. A plurality of filtering mechanisms 4 are arranged on the upper side of the base 1, and the filtering mechanisms 4 are used to conveniently filter the sampled water;

[0032] The moving mechanism 2 includes a support rod 201. The support rod 201 is fixedly connected to the right side of the top of the base 1. A plurality of hollow plates 202 are slidably connected to the outside of the support rod 201. Sampling bottles 203 are fixedly connected to the left sides of the plurality of hollow plates 202. By moving the hollow plates 202, the sampling bottles 203 can be driven to move. Slots 204 are formed in the front and rear sides of the support rod 201. Rotating rods 205 are rotatably connected to the front and rear sides of the interiors of the plurality of hollow plates 202. Blocks 206 are fixedly connected to the outside of the plurality of rotating rods 205. The plurality of blocks 206 are respectively engaged with the corresponding slots 204. When the block 206 is engaged with the slot 204, the position of the hollow plate 202 can be fixed. Fixing components are arranged on the right sides of the interiors of the plurality of hollow plates 202. The fixing components include connecting plates 207. The plurality of connecting plates 207 are respectively slidably connected to the inner sides of the corresponding blocks 206. Bidirectional threaded rods 208 are rotatably connected to the right sides of the interiors of the plurality of hollow plates 202. The front ends of the plurality of bidirectional threaded rods 208 penetrate through the corresponding hollow plates 202. Sliders 209 are threadedly connected to the front and rear sides of the outer walls of the plurality of bidirectional threaded rods 208. When the bidirectional threaded rod 208 rotates, the slider 209 will move accordingly. The left sides of the plurality of sliders 209 are respectively rotatably connected to the corresponding connecting plates 207. When the slider 209 moves, the block 206 can be driven to rotate through the connecting plate 207;

[0033] Specifically, when using this device, rotate the bidirectional threaded rod 208. When the bidirectional threaded rod 208 rotates, the slider 209 will move accordingly. During the movement of the slider 209, through the connecting plate 207, the block 206 can be driven to rotate. As the block 206 rotates, it will disengage from the engagement state with the slot 204, and the position of the sampling bottle 203 can be adjusted by moving the hollow plate 202, so as to freely adjust the sampling depth according to actual needs to meet different sampling requirements. When it is necessary to fix the position of the sampling bottle 203, rotate the bidirectional threaded rod 208, and the block 206 will rotate accordingly and re-engage with the slot 204, and the sampling bottle 203 can be firmly fixed, improving the practicability of this device and meeting the needs of users.

[0034] Refer to Figure 1 、 Figure 5 and Figure 6, the control mechanism 3 includes a hollow block 301. The hollow block 301 is fixedly connected to the top of the support rod 201. The inner bottom of the hollow block 301 is rotatably connected to a square column 302. The bottom end of the square column 302 penetrates through the hollow block 301. A plurality of fixing rods 303 are fixedly connected to the outer side of the square column 302 at equal intervals. The square column 302 will drive the fixing rods 303 to rotate. The plurality of fixing rods 303 respectively penetrate through the corresponding sampling bottles 203. At the upper and lower sides of the left end of the plurality of fixing rods 303, baffle plates 304 are fixedly connected. The fixing rods 303 will drive the baffle plates 304 to rotate. At the left side of the bottom of the plurality of sampling bottles 203, water inlets 305 are communicated. Sampling water can enter the interior of the sampling bottles 203 through the water inlets 305. At the left side of the top of the plurality of sampling bottles 203, air outlets 306 are communicated. The air outlets 306 can discharge the air in the sampling bottles 203. A rotating assembly is arranged inside the hollow block 301. The rotating assembly includes a worm gear 307. The worm gear 307 is fixedly connected to the middle and upper part of the outer side of the square column 302. A transmission rod 308 is rotatably connected to the right side of the hollow block 301. The left end of the transmission rod 308 penetrates through the hollow block 301 and is fixedly connected to a worm 309. The transmission rod 308 will drive the worm 309 to rotate. The worm 309 is meshed with the worm gear 307. When the worm 309 rotates, the worm 309 will drive the square column 302 to rotate. The control mechanism 3 further includes a connecting rod 310. The connecting rod 310 is fixedly connected to the top end of the square column 302. The top end of the connecting rod 310 penetrates through the hollow block 301 and is fixedly connected to an indicating mark 311. When the square column 302 rotates, the indicating mark 311 can be driven to rotate through the connecting rod 310, providing a position mark for the staff;

[0035] Specifically, when using this device for sampling, first place the device in the water body where sampling is required. Subsequently, rotate the transmission rod 308. The transmission rod 308 will drive the rotation of the worm 309. Since the worm 309 is meshed with the worm gear 307, when the worm 309 starts to rotate, the worm gear 307 will also rotate accordingly and drive the square column 302 to start rotating. The rotation action of the square column 302 will drive the baffle plate 304 to rotate through the fixing rod 303, and then the water inlets 305 and the air outlets 306 can be opened. Sampling water can enter the sampling bottles 203 through the water inlets 305. At the same time, the air in the sampling bottles 203 will be discharged through the air outlets 306, ensuring that the sampling water can smoothly flow into the sampling bottles 203. When the sampling work is completed, rotate the transmission rod 308 again to close the water inlets 305 and the air outlets 306, thus completing the entire sampling process and improving the convenience of this device.

[0036] Refer to Figure 6 、 Figure 7 and Figure 8, the filtering mechanism 4 includes a first filter screen 401. A plurality of first filter screens 401 are respectively fixedly connected to the middle and lower parts inside the corresponding water inlet 305. The first filter screen 401 can filter the sampled water. A rotating column 402 is rotatably connected to the top of each of the plurality of first filter screens 401. An impeller 403 is fixedly connected to the top of each of the plurality of rotating columns 402. When water flows through the water inlet 305, the impeller 403 will drive the rotating column 402 to rotate. The bottom ends of the plurality of rotating columns 402 all penetrate through the corresponding first filter screen 401 and are fixedly connected with a scraper 404. The rotating column 402 will drive the scraper 404 to rotate. A second filter screen 405 is fixedly connected to the inner top end of each of the plurality of air outlets 306. The air outlet 306 can prevent impurities from entering the sampling bottle 203 through the air outlet 306;

[0037] Specifically, during the process of using the device for sampling, the first filter screen 401 can filter the water entering the sampling bottle 203 through the water inlet 305, filter out various impurities and garbage in the water, and ensure the cleanliness of the water quality. When water flows through the water inlet 305, it will impact the impeller 403, causing the impeller 403 to rotate accordingly. The impeller 403 can drive the scraper 404 to rotate through the rotating column 402, thereby scraping off the impurities accumulated on the first filter screen 401, ensuring that the first filter screen 401 will not be blocked, and thus maintaining the filtration efficiency. In addition, the second filter screen 405 prevents impurities from entering the interior of the sampling bottle 203 through the air outlet 306, enabling the sampled water to remain clean and reducing the workload of the staff.

[0038] Refer to Figure 1 、 Figure 3 and Figure 4 , the moving mechanism 2 further includes a chute 210. A plurality of chutes 210 are respectively opened on the front and rear sides of the right end inside the corresponding hollow plate 202. The right sides of the plurality of sliders 209 are respectively slidably connected to the corresponding chutes 210. The chute 210 can limit the movement of the slider 209. The moving mechanism 2 further includes a first knob 211. A plurality of first knobs 211 are respectively fixedly connected to the front ends of the corresponding bidirectional threaded rods 208. The first knob 211 facilitates the staff to rotate the bidirectional threaded rod 208. The size of the clamping block 206 matches the size of the clamping groove 204;

[0039] Specifically, the chute 210 can limit the movement of the slider 209, so that when the bidirectional threaded rod 208 rotates, the slider 209 can move accordingly. The staff can conveniently rotate the bidirectional threaded rod 208 through the first knob 211. The size of the clamping block 206 matches the size of the clamping groove 204, so that the clamping block 206 can be tightly clamped with the clamping groove 204.

[0040] Refer to Figure 1 、 Figure 2 and Figure 5, the moving mechanism 2 further includes a counterweight 213. The counterweight 213 is fixedly connected to the bottom of the base 1. The counterweight 213 can keep the device stable. Observation windows 212 are provided on the front sides of multiple sampling bottles 203. The control mechanism 3 further includes a second knob 312. The second knob 312 is fixedly connected to the right end of the transmission rod 308. The second knob 312 can facilitate the staff to rotate the transmission rod 308. A floating ring 313 is fixedly connected to the outer bottom of the hollow block 301;

[0041] Specifically, the counterweight 213 enables the device to maintain a vertical state without deviation. The observation window 212 facilitates the staff to observe the water quality after sampling. The staff can conveniently rotate the transmission rod 308 using the second knob 312. The floating ring 313 enables the device to float on the water surface.

[0042] Working principle: When using this device, rotate the bidirectional threaded rod 208. When the bidirectional threaded rod 208 rotates, the slider 209 will move accordingly. When the slider 209 moves, it can drive the clamping block 206 to rotate through the connecting plate 207. When the clamping block 206 rotates, it will disengage from the clamping state with the clamping groove 204, and then the hollow plate 202 can be moved to move the position of the sampling bottle 203, so that the sampling depth can be freely adjusted as needed. And when it is necessary to fix the position of the sampling bottle 203, rotate the bidirectional threaded rod 208, and the clamping block 206 will engage with the clamping groove 204 to fix the sampling bottle 203;

[0043] When using this device for sampling, first place the device in the water, and then rotate the transmission rod 308. The transmission rod 308 will drive the worm 309 to rotate. Since the worm gear 307 meshes with the worm 309, when the worm 309 rotates, the worm gear 307 will drive the square column 302 to rotate accordingly. When the square column 302 rotates, the fixed rod 303 will drive the baffle 304 to rotate, thus opening the water inlet 305 and the air outlet 306. The sampling water will enter the sampling bottle 203 through the water inlet 305, and the air in the sampling bottle 203 will be discharged through the air outlet 306 accordingly, so that the sampling water can smoothly enter the sampling bottle 203. After sampling is completed, rotate the transmission rod 308 again to close the sampling bottle 203, thus completing the sampling work;

[0044] During the process of sampling using this device, the first filter screen 401 can filter the water entering the sampling bottle 203 through the water inlet 305, filtering out impurities and garbage in the water. Moreover, when the water flow passes through the water inlet 305, it will impact the impeller 403, causing the impeller 403 to rotate. Through the rotating column 402, the scraper 404 can be driven to rotate, thereby scraping off the impurities accumulated on the first filter screen 401, preventing the first filter screen 401 from being blocked. Additionally, the second filter screen 405 prevents impurities from entering the interior of the sampling bottle 203 through the air outlet 306, ensuring that the sampled water remains clean.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer water quality continuous sampling device, comprising a base (1), characterized in that, On the right side of the top of the base (1), a moving mechanism (2) is provided. The moving mechanism (2) is used to conveniently adjust the position of the sampling container. On the upper side of the base (1), a control mechanism (3) is provided. The control mechanism (3) is used to conveniently perform the water sampling work. On the upper side of the base (1), a plurality of filtering mechanisms (4) are provided. The filtering mechanisms (4) are used to conveniently filter the sampled water; The moving mechanism (2) includes a support rod (201). The support rod (201) is fixedly connected to the right side of the top of the base (1). A plurality of hollow plates (202) are slidably connected to the outer side of the support rod (201). Sampling bottles (203) are fixedly connected to the left sides of the plurality of hollow plates (202). Card slots (204) are formed in the front and rear sides of the support rod (201). Rotating rods (205) are rotatably connected to the front and rear sides inside the plurality of hollow plates (202). Blocks (206) are fixedly connected to the outer sides of the plurality of rotating rods (205). The plurality of blocks (206) are respectively engaged with the corresponding card slots (204). Fixing components are provided on the right sides inside the plurality of hollow plates (202).

2. The multi-layer water quality continuous sampling device according to claim 1, characterized in that, The control mechanism (3) includes a hollow block (301). The hollow block (301) is fixedly connected to the top of the support rod (201). A square column (302) is rotatably connected to the bottom inside the hollow block (301). The bottom end of the square column (in2) penetrates through the hollow block (301). A plurality of fixing rods (303) are fixedly connected to the outer side of the square column (302) at equal intervals. The plurality of fixing rods (303) respectively penetrate through the corresponding sampling bottles (203). Flaps (304) are fixedly connected to the upper and lower sides of the left ends of the plurality of fixing rods (303). Water inlets (305) are communicated with the left sides of the bottoms of the plurality of sampling bottles (203). Air outlets (306) are communicated with the left sides of the tops of the plurality of sampling bottles (203). A rotating component is provided inside the hollow block (301).

3. The multi-layer water quality continuous sampling device according to claim 2, characterized in that, The filtering mechanism (4) includes a first filter screen (401). The plurality of first filter screens (401) are respectively fixedly connected to the middle and lower parts inside the corresponding water inlets (305). Rotating columns (402) are rotatably connected to the tops of the plurality of first filter screens (401). Impellers (403) are fixedly connected to the tops of the plurality of rotating columns (402). The bottom ends of the plurality of rotating columns (402) penetrate through the corresponding first filter screens (401) and are fixedly connected to scrapers (404). Second filter screens (405) are fixedly connected to the inner tops of the plurality of air outlets (3).

4. A multi-layer water quality continuous sampling device according to claim 1, characterized in that, The fixed component includes a connecting plate (207). A plurality of the connecting plates (207) are respectively slidably connected to the inner sides of the corresponding clamping blocks (206). A bidirectional threaded rod (208) is rotatably connected to the right side inside each of the plurality of hollow plates (202). The front ends of the plurality of bidirectional threaded rods (208) penetrate through the corresponding hollow plates (202). Sliders (209) are threadedly connected to the front and rear sides of the outer walls of the plurality of bidirectional threaded rods (208). The left sides of the plurality of sliders (209) are respectively rotatably connected to the corresponding connecting plates (207).

5. A multi-layer water quality continuous sampling device according to claim 2, characterized in that, The rotating component includes a worm gear (307). The worm gear (307) is fixedly connected to the middle upper part of the outer side of the square column (302). A transmission rod (308) is rotatably connected to the right side of the hollow block (301). The left end of the transmission rod (308) penetrates through the hollow block (301) and is fixedly connected to a worm (309). The worm (309) is meshed with the worm gear (307).

6. The continuous multi-layer water quality sampling device according to claim 4, wherein, The moving mechanism (2) further includes sliding grooves (210). A plurality of the sliding grooves (210) are respectively formed in the front and rear sides of the right ends inside the corresponding hollow plates (202). The right sides of the plurality of sliders (209) are respectively slidably connected to the corresponding sliding grooves (210).

7. A multi-layer water quality continuous sampling device according to claim 4, characterized in that, The moving mechanism (2) further includes first knobs (211). A plurality of the first knobs (211) are respectively fixedly connected to the front ends of the corresponding bidirectional threaded rods (208). The size of the clamping block (206) matches the size of the clamping groove (204).

8. A multi-layer water quality continuous sampling device according to claim 1, wherein, The moving mechanism (2) further includes a counterweight (213). The counterweight (213) is fixedly connected to the bottom of the base (1). Observation windows (212) are formed in the front sides of the plurality of sampling bottles (203).

9. The continuous multi-layer water quality sampling device according to claim 2, characterized in that, The control mechanism (3) further includes a connecting rod (310). The connecting rod (310) is fixedly connected to the top end of the square column (302). The top end of the connecting rod (310) penetrates through the hollow block (301) and is fixedly connected to an indicator (311).

10. The continuous multi-layer water quality sampling device according to claim 5, characterized in that The control mechanism (3) further includes a second knob (312). The second knob (312) is fixedly connected to the right end of the transmission rod (308). A floating ring (313) is fixedly connected to the outer bottom of the hollow block (301).

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