A garden water quality sampling device

Abstract

This invention discloses a garden water quality sampling device, including a barrier protection mechanism and a sampling sealing mechanism. The barrier protection mechanism includes a base plate, with a protective outer box fixedly installed on the top of the base plate. Buoyancy frames are fixedly connected to both sides, front, and rear of the base plate via brackets. This invention relates to the field of water quality sampling technology. This garden water quality sampling device, by combining the barrier protection mechanism and the sampling sealing mechanism, allows the buoyancy of the buoyancy cylinder and the water to scrape away algae directly below the positioning cylinder when the barrier protection mechanism is placed on the water surface. This enables the sampling net cylinder to sink quickly and unaffected into the water for sampling. Furthermore, during sampling, the first cable can be fixed first, and then the second cable can be pulled up and down to allow the sealing outer cylinder and the annular shovel to slide on the surface of the sampling net cylinder, thereby allowing the annular shovel to scrape away floating matter from the surface of the sampling net cylinder.

Description

Technical Field

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

[0002] Garden water features refer to landscape forms in gardens that are centered around water bodies, including types such as lakes, streams, waterfalls, and fountains. According to the water flow pattern, they are divided into four categories: still water, flowing water, falling water, and pressurized water. Their functions include spatial isolation and flood control and drought resistance. Modern landscape design needs to coordinate the water supply and drainage system and integrate water quality maintenance technology and water-saving measures.

[0003] In existing garden water features, the water volume is replenished daily through irrigation, rainwater, or artificial water diversion. Therefore, it is difficult to effectively determine pollutants in the garden water, such as heavy metals and pesticide residues. To achieve routine monitoring and pollution control of garden water quality, it is necessary to regularly sample and test the water quality at different water levels and in different areas of the water feature to accurately determine the types and concentrations of pollutants. However, existing water sampling equipment has significant shortcomings in practical applications in garden settings, such as:

[0004] 1. The problem of algae interference is prominent. Garden water features are mostly relatively still water bodies with sufficient light and rich nutrients, which easily breed a large number of green algae and other phytoplankton. These algae float on the water surface or are suspended in the water body. During the process of sinking to collect samples and rising to retrieve them, the sampling device will come into close contact with the algae. On the one hand, this increases the operating resistance of the equipment and affects the sampling efficiency. On the other hand, the surface of the algae adsorbs a large amount of water and pollutants, which are easily mixed with the target water sample after sampling, resulting in distorted test results.

[0005] 2. Problems of clogging and cleaning of floating matter: There are various floating matter in garden water bodies, such as dead branches and leaves, aquatic organism excrement, and suspended silt. During the sampling process, these floating matter can easily adhere to the surface of the sampling components or block the sampling channel, which not only affects the smoothness of sampling, leading to insufficient sampling or sampling interruption, but also makes the floating matter dry and adhered after sampling, increasing the difficulty of equipment cleaning. Long-term accumulation will also affect the service life of the equipment.

[0006] 3. Sampling operations are cumbersome and prone to contamination. Existing sampling equipment often requires pouring water samples directly into storage containers after sampling. Water spillage is likely to occur during the operation, resulting in water stains on the ground. Furthermore, secondary contamination may be introduced when the sampling components come into contact with the outside environment, further affecting the accuracy of the test.

[0007] 4. Insufficient protection during equipment storage: After sampling, the sampling channel is directly exposed to the external environment, and dust and impurities in the air can easily enter the equipment, which not only affects the accuracy of the next sampling, but may also cause the internal transmission components to jam or corrode, reducing the stability of the equipment.

[0008] To address the shortcomings of the existing technologies, this invention proposes a garden water quality sampling device that integrates algae blocking, suspended matter removal, safe water sample collection, and equipment protection through structural innovation, thus solving these deficiencies. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a garden water quality sampling device that solves the problem that existing water quality sampling methods are easily affected by algae and planktonic matter.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a garden water quality sampling device, comprising a barrier protection mechanism and a sampling closure mechanism. The barrier protection mechanism includes a base plate, a protective outer box fixedly installed on the top of the base plate, and buoyancy frames fixedly connected to both sides, front, and rear of the base plate via brackets. Sliding frames are fixedly connected to the front and rear of the inner cavity of the protective outer box, and guide seats are slidably installed inside the sliding frames. A liquid storage tank is fixedly connected between the front and rear guide seats. A push-pull slot is provided on the left side of the base plate, and the left end of the liquid storage tank passes through the push-pull slot and extends to the outside of the base plate. The sampling closure mechanism is located inside the base plate.

[0011] Preferably, a manual valve pipe is fixedly installed at the bottom of the liquid storage tank and outside the base plate through an opening; an arc-shaped retaining ring is fixedly connected to the top of the liquid storage tank and inside the base plate through a bracket; a horizontal guide rod is fixedly connected to the right side of the inner cavity of the base plate through a fixing block; an L-shaped sliding guide plate is slidably installed on the surface of the horizontal guide rod, and the left end of the L-shaped sliding guide plate is fixedly connected to the liquid storage tank; a spring is sleeved on the surface of the horizontal guide rod and between the L-shaped sliding guide plate and the inner wall of the base plate.

[0012] Preferably, the front and rear of the protective outer casing are fixedly connected to a linkage elongated box. The bottom of the linkage elongated box is provided with a first rectangular groove on both sides. The front and rear of the top sides of the base plate are provided with a second rectangular groove that cooperates with the first rectangular groove. The top and bottom sides of the linkage elongated box are provided with lifting grooves. The two sides between the front and rear of the linkage elongated box are rotatably connected to a gear cylinder through bearing components.

[0013] Preferably, an L-shaped toothed plate frame that meshes with the gear cylinder is slidably installed on the inner side of the lifting groove, and the bottom end of the L-shaped toothed plate frame passes through the base plate and extends to the bottom of the base plate. A buoyancy cylinder is fixedly connected to one end of the L-shaped toothed plate frame that extends to the bottom of the base plate. The top end of the L-shaped toothed plate frame passes through the lifting groove and extends to the top of the linkage box. A counterweight plate is fixedly connected to one end of the L-shaped toothed plate frame that extends to the top of the linkage box. An L-shaped rectangular frame is slidably installed on the inner side of the first rectangular groove, and a U-shaped toothed plate that meshes with the gear cylinder is fixedly connected to one end of the L-shaped rectangular frame that is located inside the linkage box. The bottom end of the L-shaped rectangular frame passes through the second rectangular groove and extends to the bottom of the base plate.

[0014] Preferably, a positioning cylinder is fixedly installed at the bottom of the inner cavity of the protective outer box through an opening. The bottom end of the positioning cylinder passes through the base plate and extends to the bottom of the base plate. An isolation mesh frame is fixedly connected between the bottom ends of the two L-shaped rectangular frames on the same side. An arc-shaped clamp plate that cooperates with the positioning cylinder is fixedly connected to the bottom of each of the two isolation mesh frames.

[0015] Preferably, scraper plates are fixedly connected to the bottom of the two isolation frames on opposite sides. Insertion slots are provided at the front and rear of the scraper plate on the left side. Side isolation mesh plates are fixedly connected to the front and rear of the scraper plate on the right side, and the side isolation mesh plates are slidably installed inside the insertion slots. An arc-shaped cylinder is fixedly installed on the top of the protective outer box through an opening.

[0016] Preferably, the sampling enclosure mechanism includes a rectangular frame and a sampling mesh tube, and the rectangular frame is fixedly installed on the top of the protective outer box by a bracket. The front and rear sides of the top of the rectangular frame are provided with binding grooves. The front and rear parts of the rectangular frame are connected to threaded rods by opening threads, and the threaded rods are rotatably connected to arc-head locking blocks by bearing components inside the binding grooves.

[0017] Preferably, the sampling net cylinder is located inside the protective outer casing. A flaring frame is fixedly installed at the bottom of the sampling net cylinder through an opening. An arched frame is fixedly connected to the top of the sampling net cylinder. A first pull cable is fixedly connected to the top of the arched frame, and the top of the first pull cable passes through the arc-shaped cylinder and extends into the interior of the rear restraint groove. A sealing outer cylinder is slidably installed on the surface of the sampling net cylinder, and a ring shovel is fixedly connected to the top of the sealing outer cylinder. A sealing ball that cooperates with the flaring frame is fixedly connected to the bottom of the sealing outer cylinder through a bracket. A second pull cable is fixedly connected to the top of the sealing ball, and the top of the second pull cable passes through the sampling net cylinder and the arc-shaped cylinder in sequence and extends into the interior of the front restraint groove.

[0018] This invention provides a garden water quality sampling device. Compared with existing technologies, it has the following advantages:

[0019] (1) The garden water quality sampling device combines the barrier protection mechanism and the sampling sealing mechanism. When the barrier protection mechanism is placed on the water surface, the buoyancy of the buoyancy cylinder and the water will scrape off the algae directly below the positioning cylinder, so that the sampling net cylinder can sink into the water quickly and without interference for sampling. When sampling, the first cable can be fixed first, and then the sealing outer cylinder and the ring shovel can be slid on the surface of the sampling net cylinder by pulling the second cable up and down, so that the ring shovel can scrape off the floating matter on the surface of the sampling net cylinder, avoiding the attachment of floating matter, thus avoiding blockage during sampling and facilitating subsequent cleaning.

[0020] (2) The garden water quality sampling device is used by setting two isolation net frames at the bottom of the base plate, and using a scraper and a side isolation net plate. When the base plate is lowered, the buoyancy of the buoyancy cylinder pushes the L-shaped toothed plate frame to rise, thereby causing the two isolation net frames to separate and the scraper to scrape off the algae on the water surface. At the same time, the side isolation net plate forms a closed clean sampling area at the bottom of the positioning cylinder, effectively preventing algae from mixing with the target water sample, ensuring the accuracy of the test results from the source, reducing the resistance of algae to the sampling operation, and improving the sampling efficiency. When the base plate leaves the water surface, the weight of the counterweight plate can also drive the L-shaped toothed plate frame to descend, thereby causing the two isolation net frames to close again and seal the positioning cylinder for protection, which is convenient for subsequent storage.

[0021] (3) The garden water quality sampling device is equipped with a push-pull liquid storage tank. After sampling, the water sample can be directly introduced into the liquid storage tank for temporary storage, avoiding the pollution caused by water sample spillage during the traditional sampling process. The liquid storage tank is equipped with a manual valve pipe, which facilitates the accurate export of water samples. At the same time, the spring-driven reset structure reduces the manual operation steps and improves the convenience of sampling operations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a bottom view of the buoyancy cylinder, L-shaped rectangular frame, and isolation mesh frame structure of the present invention;

[0024] Figure 3 This is a cross-sectional view of the protective outer casing structure of the present invention;

[0025] Figure 4 This is a cross-sectional view of the liquid storage tank structure of the present invention;

[0026] Figure 5 This is a cross-sectional view of the linkage elongated box structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the L-shaped toothed plate frame, buoyancy cylinder, and rectangular frame structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the protective outer casing of the present invention;

[0029] Figure 8 This is a schematic diagram of the isolation mesh frame, arc-shaped clamp, and scraper structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the scraper, insertion groove, and side isolation mesh structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the sampling and sealing mechanism structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the rectangular frame, binding groove, threaded rod, and arc-head locking block structure of the present invention.

[0033] Figure 12 This is a cross-sectional view of the sampling mesh cylinder and sealing outer cylinder structure of the present invention;

[0034] Figure 13 This is a schematic diagram of the first cable, sealing outer cylinder, and annular shovel structure of the present invention.

[0035] In the diagram: 1. Barrier and protective mechanism; 2. Sampling and sealing mechanism; 101. Base plate; 102. Protective outer casing; 103. Buoyancy frame; 104. Sliding frame; 105. Guide seat; 106. Liquid storage tank; 107. Push-pull slot; 108. Manual valve pipe; 109. Arc retaining ring; 110. Horizontal guide rod; 111. L-shaped sliding guide plate; 112. Spring; 113. Linkage long box; 114. First rectangular groove; 115. Second rectangular groove; 116. Lifting groove; 117. Gear cylinder; 118. L-shaped gear plate frame; 119. Buoyancy cylinder; 120. 121. L-shaped rectangular frame; 122. U-shaped toothed plate; 123. Positioning cylinder; 124. Isolation mesh frame; 125. Arc-shaped clamping plate; 126. Scraper plate; 127. Insertion groove; 128. Side isolation mesh plate; 129. Arc-shaped cylinder; 1201. Counterweight plate; 201. Rectangular long frame; 202. Binding groove; 203. Threaded rod; 204. Arc-shaped head block; 205. Sampling mesh cylinder; 206. Expanding mouth frame; 207. Bow-shaped frame; 208. First cable; 209. Sealing outer cylinder; 210. Ring shovel; 211. Sealing ball; 212. Second cable. Detailed Implementation

[0036] 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.

[0037] Please see Figures 1-13 The present invention provides a technical solution: a garden water quality sampling device, comprising a barrier protection mechanism 1 and a sampling sealing mechanism 2;

[0038] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The diagram shows the overall structure of the barrier protection mechanism 1. The barrier protection mechanism 1 includes a base plate 101, a protective outer box 102 fixedly installed on the top of the base plate 101, and buoyancy frames 103 fixedly connected to the sides, front and rear of the base plate 101 via brackets. The buoyancy frames 103 are hollow rectangular frames made of lightweight waterproof material to ensure that the entire device can float stably on the water surface. Sliding frames 104 are fixedly connected to the front and rear of the inner cavity of the protective outer box 102. Guide seats 105 are slidably installed inside the sliding frames 104. A liquid storage tank 106 is fixedly connected between the front and rear guide seats 105. A push-pull slot 107 is opened on the left side of the base plate 101, and the left end of the liquid storage tank 106 passes through the push-pull slot 107 and extends to the outside of the base plate 101. The sampling sealing mechanism 2 is set inside the base plate 101.

[0039] A manual valve pipe 108 is fixedly installed at the bottom of the storage tank 106 and outside the base plate 101 through an opening. The manual valve pipe 108 adopts a ball valve structure for precise control of water sample release. An arc-shaped retaining ring 109 is fixedly connected to the top of the storage tank 106 and inside the base plate 101 through a bracket. The inner diameter of the arc-shaped retaining ring 109 is adapted to the outer diameter of the sampling net tube 205 for locking and fixing the sampling net tube 205 after sampling. A horizontal guide rod 110 is fixedly connected to the right side of the inner cavity of the base plate 101 through a fixing block. An L-shaped sliding guide plate 111 is slidably installed on the surface of the horizontal guide rod 110, and the left end of the L-shaped sliding guide plate 111... A spring 112 is fitted on the surface of the horizontal guide rod 110, located between the L-shaped sliding guide plate 111 and the inner wall of the base plate 101, and is fixedly connected to the liquid storage tank 106. A linkage long box 113 is fixedly connected to the front and rear of the protective outer box 102. A first rectangular groove 114 is opened on both sides of the bottom of the inner cavity of the linkage long box 113. A second rectangular groove 115 is opened on the front and rear sides of the top of the base plate 101, which cooperates with the first rectangular groove 114. A lifting groove 116 is opened on both sides of the top and bottom of the linkage long box 113. A gear cylinder 117 is rotatably connected to both sides of the inner cavity between the front and rear of the linkage long box 113 through bearing components.

[0040] An L-shaped gear plate frame 118, which meshes with a gear cylinder 117, is slidably mounted on the inner side of the lifting groove 116. The bottom end of the L-shaped gear plate frame 118 passes through the base plate 101 and extends to the bottom of the base plate 101. A buoyancy cylinder 119 is fixedly connected to one end of the L-shaped gear plate frame 118 extending to the bottom of the base plate 101. The buoyancy cylinder 119 is a sealed cylindrical body made of lightweight and high-strength material. It uses the buoyancy of water to drive the lifting of the L-shaped gear plate frame 118. The top end of the L-shaped gear plate frame 118 passes through the lifting groove 116 and extends to the linkage box 113. At the top, a counterweight plate 129 is fixedly connected to one end of the L-shaped toothed plate frame 118 extending to the top of the linkage box 113. The counterweight plate 129 is a rectangular metal plate used to provide gravity drive for the descent of the L-shaped toothed plate frame 118 when the equipment leaves the water. An L-shaped rectangular frame 120 is slidably installed on the inner side of the first rectangular groove 114, and a U-shaped toothed plate 121 that meshes with the gear cylinder 117 is fixedly connected to one end of the L-shaped rectangular frame 120 located inside the linkage box 113. The bottom end of the L-shaped rectangular frame 120 passes through the second rectangular groove 115 and extends to the bottom of the base plate 101.

[0041] A positioning cylinder 122 is fixedly installed at the bottom of the inner cavity of the protective outer casing 102 through an opening. The bottom end of the positioning cylinder 122 passes through the base plate 101 and extends to the bottom of the base plate 101. An isolation mesh frame 123 is fixedly connected between the bottom ends of two L-shaped rectangular frames 120 on the same side. An arc-shaped clamping plate 124 that cooperates with the positioning cylinder 122 is fixedly connected to the bottom of each of the two isolation mesh frames 123. A scraper plate 125 is fixedly connected to the bottom of each of the two isolation mesh frames 123 on opposite sides. An insertion groove 126 is opened at the front and rear of one side of the left scraper plate 125. A side isolation mesh plate 127 is fixedly connected to the front and rear of the left side of the right scraper plate 125. The side isolation mesh plate 127 is slidably installed inside the insertion groove 126. An arc-shaped cylinder 128 is fixedly installed at the top of the protective outer casing 102 through an opening.

[0042] Please refer to Figure 10 , Figure 11 , Figure 12 and Figure 13 The overall structure of the sampling enclosure mechanism 2 is shown. The sampling enclosure mechanism 2 includes a rectangular frame 201 and a sampling net tube 205. The rectangular frame 201 is fixedly installed on the top of the protective outer box 102 by a bracket. The front and rear sides of the top of the rectangular frame 201 are provided with restraint grooves 202. The front and rear parts of the rectangular frame 201 are connected to threaded rods 203 by opening threads. The threaded rods 203 are located inside the restraint grooves 202 and are rotatably connected to arc head locking blocks 204 by bearing components.

[0043] The sampling net cylinder 205 is located inside the protective outer casing 102. The bottom of the sampling net cylinder 205 is fixedly installed with a flaring frame 206 through an opening. The top of the sampling net cylinder 205 is fixedly connected with an arc-shaped frame 207. The top of the arc-shaped frame 207 is fixedly connected with a first cable 208. The top of the first cable 208 passes through the arc-shaped cylinder 128 and extends into the interior of the rear restraint groove 202. A sealing outer cylinder 209 is slidably installed on the surface of the sampling net cylinder 205. The sampling net cylinder 205 and the sealing outer cylinder 209 are in close contact. The top of the sealing outer cylinder 209 is fixedly connected with a ring shovel 210. The bottom of the sealing outer cylinder 209 is fixedly connected with a sealing ball 211 that cooperates with the flaring frame 206 through a bracket. The top of the sealing ball 211 is fixedly connected with a second cable 212. The top of the second cable 212 passes through the sampling net cylinder 205 and the arc-shaped cylinder 128 in sequence and extends into the interior of the front restraint groove 202.

[0044] In use, the barrier and protection mechanism 1 is first placed on the water surface. When the base plate 101 is lowered, the two insertion slots 126 are inserted into the water first, followed by the four buoyancy cylinders 119 contacting the water surface. As the base plate 101 is lowered, the buoyancy cylinders 119 push the L-shaped toothed plate frame 118 upward through their own buoyancy. When the L-shaped toothed plate frame 118 rises, it drives the gear cylinder 117 to rotate. When the gear cylinder 117 rotates, it drives the U-shaped toothed plate 121 to move laterally. At this time, the isolation net frames 123 on both sides move away from each other by the drive of the U-shaped toothed plate 121. When the two isolation net frames 123 separate from each other, the green algae at the bottom of the positioning cylinder 122 will slide apart by the scraper plate 125, and the side isolation net plate 127 will slide from the inside of the insertion slot 126. When the base plate 101 floats on the water surface through the buoyancy frame 103, the two scraper plates 125 and the two side isolation net plates 127 form a square clean sampling area at the bottom of the positioning cylinder 122, and the algae in this area are effectively scraped off and blocked. Then, by holding the second pull cable 212, the sealing ball 211 contacts and seals the nozzle frame 206. At the same time, the sealing outer cylinder 209 also seals the surface of the sampling net cylinder 205. Then, using the weight of the sampling net cylinder 205 and the sealing outer cylinder 209, the sampling net cylinder 205 passes through the positioning cylinder 122 and enters the water. Then, the second pull cable 212 is continuously lowered to make the sampling net cylinder 205 reach the designated water layer. After reaching the designated water layer, the other hand holds the first pull cable 208 and gently lowers it. Straighten the threaded rod 203 and then rotate it to push the arc head locking block 204 to fix the first cable 208. At this time, the sampling net cylinder 205 is positioned in the water layer. Then, lower the second cable 212 by hand. At this time, the lowering of the second cable 212 will separate the sealing ball 211 from the nozzle frame 206. At the same time, the sealing outer cylinder 209 exposes the surface of the sampling net cylinder 205. Water enters the interior of the sampling net cylinder 205 through the holes. While sampling, repeatedly pull the second cable 212 up and down by hand. Therefore, the sealing outer cylinder 209 also drives the ring shovel 210 to slide up and down. While the ring shovel 210 slides up and down, it will also scrape off the floating objects on the surface of the sampling net cylinder 205 to prevent foreign objects from adhering and causing blockage. After the sampling net cylinder 205 has finished taking water, pull the second cable 212 by hand. As the second cable 212 rises, the sealing outer cylinder 209 re-closes the sampling mesh cylinder 205, while the sealing ball 211 seals the flare frame 206 to prevent water leakage. Then, the sealing ball 211, pulled by the second cable 212, supports the sampling mesh cylinder 205 as it rises until it reaches the top of the protective outer casing 102. Next, the storage tank 106 is pushed to the right, positioning the arc-shaped retaining ring 109 directly below the sampling mesh cylinder 205. The second cable 212 is then lowered, causing the arc-shaped retaining ring 109 to hold the sampling mesh cylinder 205 in place. As the second cable 212 continues to descend, the sealing ball 211 and the sealing outer cylinder 209 separate from the sampling mesh cylinder 205, allowing the water inside the sampling mesh cylinder 205 to flow into the storage tank 106.Then, open the manual valve pipe 108 to remove the sample. Next, use the sampling net tube 205 to sample water from different water layers. When the equipment needs to be stored or maintained after sampling, remove the base plate 101 entirely from the water surface. Once the base plate 101 is removed from the water, the buoyancy cylinder 119 loses buoyancy. Then, the counterweight plate 129 uses gravity to press down the L-shaped toothed plate frame 118, causing the U-shaped toothed plate 121 to move and close the L-shaped rectangular frame 120 and the isolation net frames 123 on both sides, thus sealing the positioning cylinder 122.

[0045] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A garden water quality sampling device, comprising a barrier protection mechanism (1) and a sampling sealing mechanism (2), characterized in that: The barrier protection mechanism (1) includes a base plate (101), a protective outer box (102) is fixedly installed on the top of the base plate (101), and a buoyancy frame (103) is fixedly connected to both sides, front and rear of the base plate (101) by a bracket. A sliding frame (104) is fixedly connected to the front and rear of the inner cavity of the protective outer box (102). A guide seat (105) is slidably installed inside the sliding frame (104). A liquid storage tank (106) is fixedly connected between the front and rear guide seats (105). A push-pull slot (107) is opened on the left side of the base plate (101), and the left end of the liquid storage tank (106) passes through the push-pull slot (107) and extends to the outside of the base plate (101). The sampling sealing mechanism (2) is set inside the base plate (101). The protective outer casing (102) is fixedly connected to the front and rear of a linkage long box (113). The bottom of the linkage long box (113) is provided with a first rectangular groove (114) on both sides. The front and rear of the top sides of the base plate (101) are provided with a second rectangular groove (115) that cooperates with the first rectangular groove (114). The top and bottom sides of the linkage long box (113) are provided with lifting grooves (116). The front and rear sides of the inner cavity of the linkage long box (113) are rotatably connected to a gear cylinder (117) through a bearing component. An L-shaped gear plate frame (118) that meshes with a gear cylinder (117) is slidably installed on the inner side of the lifting groove (116). The bottom end of the L-shaped gear plate frame (118) passes through the base plate (101) and extends to the bottom of the base plate (101). A buoyancy cylinder (119) is fixedly connected to one end of the L-shaped gear plate frame (118) that extends to the bottom of the base plate (101). The top end of the L-shaped gear plate frame (118) passes through the lifting groove (116) and extends to the top of the linkage elongated box (113). The L-shaped toothed plate frame (118) extends to the top of the linkage box (113) and is fixedly connected to a counterweight plate (129). The L-shaped rectangular frame (120) is slidably installed on the inner side of the first rectangular groove (114), and the L-shaped rectangular frame (120) located inside the linkage box (113) is fixedly connected to a U-shaped toothed plate (121) that meshes with the gear cylinder (117). The bottom end of the L-shaped rectangular frame (120) passes through the second rectangular groove (115) and extends to the bottom of the base plate (101). A positioning cylinder (122) is fixedly installed at the bottom of the inner cavity of the protective outer box (102) through an opening. The bottom end of the positioning cylinder (122) passes through the base plate (101) and extends to the bottom of the base plate (101). An isolation frame (123) is fixedly connected between the bottom ends of the two L-shaped rectangular frames (120) on the same side. An arc-shaped clamp (124) that cooperates with the positioning cylinder (122) is fixedly connected to the bottom of the two isolation frames (123). The bottom of each of the two isolation frames (123) is fixedly connected to a scraper plate (125) on opposite sides. The front and rear of the scraper plate (125) on the left side are provided with insertion slots (126). The front and rear of the scraper plate (125) on the right side are fixedly connected to a side isolation plate (127), and the side isolation plate (127) is slidably installed inside the insertion slot (126). The top of the protective outer box (102) is fixedly installed with an arc-shaped cylinder (128) through an opening.

2. The garden water quality sampling device according to claim 1, characterized in that: A manual valve pipe (108) is fixedly installed at the bottom of the liquid storage tank (106) and outside the base plate (101) through an opening. An arc retaining ring (109) is fixedly connected to the top of the liquid storage tank (106) and inside the base plate (101) through a bracket. A horizontal guide rod (110) is fixedly connected to the right side of the inner cavity of the base plate (101) through a fixing block. An L-shaped sliding guide plate (111) is slidably installed on the surface of the horizontal guide rod (110), and the left end of the L-shaped sliding guide plate (111) is fixedly connected to the liquid storage tank (106). A spring (112) is sleeved on the surface of the horizontal guide rod (110) and between the L-shaped sliding guide plate (111) and the inner wall of the base plate (101).

3. A garden water quality sampling device according to claim 2, characterized in that: The sampling closure mechanism (2) includes a rectangular frame (201) and a sampling net tube (205). The rectangular frame (201) is fixedly installed on the top of the protective outer box (102) by a bracket. The front and rear sides of the top of the rectangular frame (201) are provided with binding grooves (202). The front and rear parts of the rectangular frame (201) are connected to threaded rods (203) by opening threads. The threaded rods (203) are located inside the binding grooves (202) and are rotatably connected to arc head blocks (204) by bearing components.

4. A garden water quality sampling device according to claim 3, characterized in that: The sampling net tube (205) is located inside the protective outer casing (102). A flared frame (206) is fixedly installed at the bottom of the sampling net tube (205) through an opening. An arched frame (207) is fixedly connected to the top of the sampling net tube (205). A first cable (208) is fixedly connected to the top of the arched frame (207), and the top of the first cable (208) passes through the arc-shaped tube (128) and extends into the interior of the rear restraint groove (202). The surface of the sampling net tube (205)... A sealing outer cylinder (209) is slidably installed on the surface, and a ring shovel (210) is fixedly connected to the top of the sealing outer cylinder (209). A sealing ball (211) that works with the nozzle frame (206) is fixedly connected to the bottom of the sealing outer cylinder (209) through a bracket. A second cable (212) is fixedly connected to the top of the sealing ball (211), and the top of the second cable (212) passes through the sampling net cylinder (205) and the arc-shaped cylinder (128) in sequence and extends to the inside of the front binding groove (202).

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