A lake water monitoring and pretreatment device

Abstract

This utility model discloses a pretreatment device for lake water monitoring, relating to the field of lake water monitoring technology. The pretreatment device includes a support frame, with a pretreatment mechanism above the support frame: a cleaning component, comprising a support plate fixedly installed above the support frame, a housing fixedly installed above the support plate, a movable frame fixedly installed below the support plate, a baffle fixedly installed on the outer side of the movable frame, a scraper fixedly installed inside the movable frame, and a transmission gear ring inserted through the outer side of the movable frame. The cross-shaped scraper inside the movable frame rotates with it, continuously scraping the surface of the outer mesh plate and the metal mesh at the bottom of the inner tube in the filter assembly. Simultaneously, the rotating annular baffle on the outer side of the movable frame prevents contact with debris, thereby dynamically cleaning the outer side of the filter structure, preventing sediment adhesion from affecting liquid permeability, and solving the problem that traditional backwashing cannot clean outer sediment.

Description

Technical Field

[0001] This utility model relates to the field of lake water monitoring technology, specifically a lake water monitoring pretreatment device. Background Technology

[0002] Water quality monitoring is the process of monitoring the types of pollutants in natural water, the concentration of each pollutant, and their changing trends, thereby assessing the water quality status.

[0003] The existing utility model patent with publication number CN222232125U discloses a lake water monitoring pretreatment device, including a base, a pretreatment cylinder, a primary filtration structure, and a secondary filtration structure. Its key technical point is that the entire device is positioned in the lake using a base and a lifting and positioning assembly. The left and right chambers of the pretreatment cylinder are alternately used to draw in water. During this process, the primary filtration structure first filters out impurities, and then the secondary filtration structure further refines the filtration. Finally, the water flows through the left or right riser, the delivery pipeline, and the booster pump to a sampling container on the shore. When the liquid flow rate into the sampling container decreases, it indicates a blockage in the primary or secondary filtration structure. Pressurized water can be introduced into the T-shaped pipe, and then through the left or right riser into the left and right chambers to backwash the primary and secondary filtration structures. This device can be installed in the lake for continuous pretreatment, which is beneficial for real-time online monitoring of the water.

[0004] The aforementioned pretreatment device cleans the filter structure by reverse-flowing pressurized water. This method can only remove debris stuck inside the filter pores. The outer side of the filter structure will develop surface deposits due to long-term immersion in water, affecting the liquid flow of the filter structure. Furthermore, the filter structure of this device cannot be replaced quickly. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a lake water monitoring pretreatment device, which solves the problems of sediment easily forming on the outside of the filter structure and the inability to easily replace the filter structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A lake water monitoring pretreatment device includes a support frame, and a pretreatment mechanism is disposed above the support frame.

[0007] The cleaning assembly includes a support plate fixedly mounted above a support frame, a housing fixedly mounted above the support plate, a movable frame fixedly mounted below the support plate, a baffle fixedly mounted on the outer side of the movable frame, a scraper fixedly mounted inside the movable frame, and a transmission gear ring inserted through the outer side of the movable frame. The cleaning assembly also includes a transmission motor fixedly mounted above the support plate, and a transmission gear fixedly mounted on the outer side of the shaft of the transmission motor.

[0008] A filter assembly, located inside the cleaning assembly, is used to filter impurities in the water;

[0009] A delivery assembly, positioned above the cleaning assembly, is used to deliver water samples.

[0010] Preferably, a counterweight is provided at the center of the bottom of the support frame, a tubular protrusion is provided at the bottom of the support plate, the movable frame and the support plate are rotatably connected, the baffle is installed in a ring at the opening at the bottom of the movable frame, the scraper is installed in a cross shape inside the movable frame, the transmission gear ring and the transmission gear mesh with each other, and the shaft of the transmission motor passes through the support plate.

[0011] Preferably, the filter assembly includes a transmission tube movably mounted above the support plate, a pressure bearing fixedly mounted at the bottom end of the transmission tube, a drive gear ring fixedly mounted on the outer side of the transmission tube, the filter assembly also includes a drive motor fixedly mounted above the support plate, a drive gear inserted through the outer side of the drive motor shaft, an embedded tube movably mounted inside the transmission tube, and a mesh plate fixedly mounted on the outer bottom of the embedded tube.

[0012] Preferably, the transmission tube and the support plate are rotatably connected, the bottom end of the pressure bearing is in contact with the bottom of the support plate, the drive gear ring and the drive gear mesh with each other, the top two sides of the inner tube are provided with protruding structures, the inner wall of the transmission tube is provided with grooves that fit into the protruding structures of the inner tube, the inner tube and the transmission tube are slidably connected, the bottom end of the inner tube is provided with a metal mesh structure, and the mesh plate is installed on the bottom outer side of the inner tube by bolts.

[0013] Preferably, the conveying assembly includes a water pump fixedly installed on the upper part of the housing, a metal pipe fixedly installed at the water inlet end of the water pump, a flexible hose fixedly installed at the end of the metal pipe, a limiting tube fixedly installed at the bottom end of the flexible hose, a sleeve installed on the outside of the limiting tube by threads, and a filter screen fitted between the limiting tube and the sleeve.

[0014] Preferably, the outer side of the metal tube is provided with a support structure and is fixedly connected to the top of the outer shell; the end of the flexible tube is located at the center of the grid plate below the inner tube; the outer side of the sleeve is provided with a threaded structure; the lower part of the limiting tube is provided with rod-shaped protrusions distributed in a ring, and the bottom end of the rod-shaped protrusions contacts the bottom surface of the inner cavity of the sleeve; the lower part of the sleeve is provided with an opening structure; and the filter screen is fitted between the sleeve and the limiting tube.

[0015] Beneficial effects

[0016] This invention provides a pretreatment device for lake water monitoring. Compared with the prior art, it has the following advantages:

[0017] (1) The lake water monitoring pretreatment device uses a cleaning component to drive a transmission gear with a transmission motor. The transmission gear meshes with the transmission ring to rotate the movable frame. The cross-shaped scraper inside the movable frame rotates with it and continuously scrapes the surface of the outer mesh plate and the metal mesh at the bottom of the inner tube in the filter component. At the same time, the outer ring baffle of the movable frame rotates to prevent debris from contacting it. This dynamically cleans the outside of the filter structure and avoids the adhesion of sediments affecting the liquid flow. This solves the problem that traditional backwashing cannot clean the sediments on the outside.

[0018] (2) The lake water monitoring pretreatment device adapts the top protrusion of the inner tube to the groove on the inner wall of the transmission tube, which ensures that the rotation of the transmission tube can drive the rotation of the inner tube synchronously, and also supports the inner tube to slide out along the axis of the transmission tube. The grid plate is connected to the inner tube by bolts. If it needs to be replaced, the inner tube can be lifted up to detach from the transmission tube, and the bolts can be unscrewed to replace it. Then, the new grid plate is installed back into the inner tube and reset to be embedded in the transmission tube. At the same time, the sleeve and the limiting tube are threadedly connected, and the filter screen is fitted between the two. When replacing, the limiting tube and the sleeve are lifted by the hose, and the sleeve is rotated to separate it from the limiting tube, so that the old filter screen can be taken out. The new filter screen is placed in the annular space below the limiting tube, and the sleeve is rotated in the opposite direction to screw it into the limiting tube to complete the filter screen fixation and achieve rapid replacement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the movable frame of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the embedded tube and the transmission tube of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter installation structure of this utility model;

[0023] In the diagram: 1. Support frame; 2. Pretreatment mechanism; 21. Cleaning component; 211. Support plate; 212. Outer shell; 213. Movable frame; 214. Baffle; 215. Scraper; 216. Transmission gear ring; 217. Transmission motor; 218. Transmission gear; 22. Filter assembly; 221. Transmission pipe; 222. Pressure bearing; 223. Drive gear ring; 224. Drive motor; 225. Drive gear; 226. Embedded tube; 227. Mesh plate; 23. Conveying assembly; 231. Water pump; 232. Metal pipe; 233. Hose; 234. Limiting tube; 235. Sleeve; 236. Filter screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a lake water monitoring pretreatment device, including a support frame 1, and a pretreatment mechanism 2 is arranged above the support frame 1.

[0026] The cleaning assembly 21 includes a support plate 211 fixedly mounted above the support frame 1, a housing 212 fixedly mounted above the support plate 211, a movable frame 213 fixedly mounted below the support plate 211, a baffle 214 fixedly mounted on the outer side of the movable frame 213, a scraper 215 fixedly mounted inside the movable frame 213, and a transmission gear ring 216 inserted through the outer side of the movable frame 213. The cleaning assembly 21 also includes a transmission motor 217 fixedly mounted above the support plate 211. A transmission gear 218 is fixedly installed on the outside of the rotating shaft of the machine 217. A counterweight is set at the center of the bottom of the support frame 1. A tubular protrusion structure is set at the bottom of the support plate 211. The movable frame 213 and the support plate 211 are rotatably connected. The baffle 214 is installed in a ring at the opening at the bottom of the movable frame 213. The scraper 215 is installed in a cross shape inside the movable frame 213. The transmission gear ring 216 and the transmission gear 218 mesh with each other. The rotating shaft of the transmission motor 217 passes through the support plate 211.

[0027] Specifically, the support frame 1 can maintain contact between its bottom and the bottom of the lake under the influence of the counterweight, restricting the position of the upper pretreatment mechanism 2. The support plate 211 restricts the position of the lower movable frame 213. At the same time, the movable frame 213 and the support plate 211 are rotatably connected. The movable frame 213 is driven to rotate by the transmission gear ring 216 on the outer side of the top of the movable frame 213, the transmission motor 217 above the support plate 211, and the transmission gear 218 on the outer side of the shaft of the transmission motor 217. When the movable frame 213 rotates, the scraper 215 inside the movable frame 213 can clean the mesh plate 227 on the outer side of the embedded tube 226. At the same time, the bottom of the movable frame 213 is equipped with a cross-shaped brush, which can clean the metal mesh at the bottom of the embedded tube 226. When the movable frame 213 rotates, the outer baffle 214 structure rotates synchronously to prevent some debris from contacting the mesh plate 227 on the outer side of the embedded tube 226.

[0028] The filter assembly 22, disposed inside the cleaning assembly 21, is used to filter impurities in the water. The filter assembly 22 includes a transmission pipe 221 movably mounted above the support plate 211. A pressure bearing 222 is fixedly mounted at the bottom end of the transmission pipe 221, and a drive gear ring 223 is fixedly mounted on the outside of the transmission pipe 221. The filter assembly 22 also includes a drive motor 224 fixedly mounted above the support plate 211. A drive gear 225 is inserted and mounted on the outside of the shaft of the drive motor 224. An inner tube 226 is movably mounted inside the transmission pipe 221, and the bottom outer side of the inner tube 226 is fixedly mounted... A grid plate 227 is fixedly installed. A rotatable connection is formed between the transmission tube 221 and the support plate 211. The bottom end of the pressure bearing 222 contacts the bottom of the support plate 211. The drive gear ring 223 meshes with the drive gear 225. The top two sides of the inner tube 226 are provided with protruding structures. The inner wall of the transmission tube 221 is provided with grooves that fit into the protruding structures of the inner tube 226. The inner tube 226 and the transmission tube 221 are slidably connected. The bottom end of the inner tube 226 is provided with a metal mesh structure. The grid plate 227 is installed on the bottom outer side of the inner tube 226 by bolts.

[0029] Specifically, the drive gear ring 223 on the outside of the transmission tube 221 meshes with the drive gear 225 on the outside of the drive motor 224. The drive motor 224 can drive the transmission tube 221 to rotate through the drive gear ring 223 and the drive gear 225. The groove on the inner wall of the transmission tube 221 and the protrusion on the outside of the inner tube 226 allow the inner tube 226 to be removed from the inside of the transmission tube 221 by sliding while the transmission tube 221 drives the inner tube 226 to rotate. This facilitates the replacement of the mesh plate 227 on the outside of the bottom of the inner tube 226. The mesh plate 227 can block some debris that can pass through the gaps between the baffles 214 from entering the interior of the inner tube 226.

[0030] The delivery assembly 23, positioned above the cleaning assembly 21, is used to deliver water samples. The delivery assembly 23 includes a water pump 231 fixedly mounted on the housing 212. A metal pipe 232 is fixedly mounted at the inlet end of the water pump 231. A flexible hose 233 is fixedly mounted at the end of the metal pipe 232. A limiting tube 234 is fixedly mounted at the bottom end of the flexible hose 233. A sleeve 235 is threaded onto the outside of the limiting tube 234. A filter screen 2 is fitted between the limiting tube 234 and the sleeve 235. 36. A support structure is provided on the outside of the metal tube 232 and fixedly connected to the top of the outer shell 212. The end of the hose 233 is located at the center of the grid plate 227 below the inner tube 226. A threaded structure is provided on the outside of the sleeve 235. A rod-shaped protrusion distributed in a ring is provided below the limiting tube 234, and the bottom end of the rod-shaped protrusion contacts the bottom surface of the inner cavity of the sleeve 235. An opening structure is provided below the sleeve 235. The filter screen 236 is fitted between the sleeve 235 and the limiting tube 234.

[0031] Specifically, the water inlet of the water pump 231 is positioned below the liquid surface via the metal tube 232 and the flexible hose 233. The metal tube 232 restricts the position of the top of the flexible hose 233 to prevent it from contacting the top of the inner tube 226 after bending. The flexible hose 233 can also be lifted upwards to prevent it from blocking the insertion and removal of the inner tube 226. The bottom diameter of the inner cavity of the sleeve 235 is larger than the diameter of the limiting tube 234. The filter screen 236 can be fitted into the space between the outer side of the rod-shaped protrusion below the limiting tube 234 and the sleeve 235. The sleeve 235 and the limiting tube 234 restrict the position of the filter screen 236. When the filter screen 236 needs to be replaced, the sleeve 235 and the limiting tube 234 can be separated by rotation. After replacement, the sleeve 235 can be reset.

[0032] Specifically, the transmission motor 217 and the drive motor 224 are model YE3. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] During operation, the support frame 1 stands stably on the lake bottom with the help of the bottom counterweight, forming the basic support for the device. After the water pump 231 starts, it generates pumping power, and the movable frame 213 rotates continuously driven by the drive motor 217. Its outer annular baffle 214 rotates synchronously. Utilizing its own annular distribution structure, it dynamically prevents large, floating impurities from directly contacting the inner tube 226. The lake water must first pass through the gaps between the baffles 214 during rotation before it can continue to flow downwards. This initial screening intercepts large, easily clogging impurities. The water flowing through the gaps in the baffles 214 then contacts the mesh plate on the outside of the inner tube 226. 227. The drive motor 224 operates synchronously, and through the drive gear 225 meshing with the drive gear ring 223, it drives the transmission tube 221 and the inner tube 226 to rotate synchronously. The mesh plate 227 rotates with the inner tube 226, continuously intercepting and filtering suspended impurities (such as silt flocs, small aquatic plant fragments, etc.) in the water flow, allowing the relatively pure water flow to permeate into the inner tube 226. Before the water flow that has permeated into the inner tube 226 is drawn upward through the hose 233, it needs to be finely filtered again by the filter screen 236 in the conveying component 23. The filter screen 236 is embedded between the limiting tube 234 and the sleeve 235 to intercept fine particles (such as microbial aggregates, extremely fine silt, etc.) in the water flow. The water sample transported through the metal tube 232 is the pre-treated monitoring water. At the same time, as the drive motor 217 drives the movable frame 213 to rotate, its internal cross-shaped scraper 215 simultaneously scrapes the surface of the mesh plate 227 and the metal mesh at the bottom of the embedded tube 226, cleaning the attached intercepted impurities in real time. The cross-shaped brush at the bottom of the movable frame 213 also scrapes the metal mesh at the bottom of the embedded tube 226. This double cleaning ensures that the filtration structure is unobstructed and avoids the accumulation of sediment that affects the water flow efficiency.

[0034] When replacing the mesh plate 227, shut down the equipment, first remove the hose 233, lift the inner tube 226 upwards, unscrew the bolts connecting the mesh plate 227 and the inner tube 226, and remove the old mesh plate 227; install the new mesh plate 227 back into the inner tube 226 with bolts, then align the inner tube 226 with the groove on the inner wall of the transmission tube 221 and insert it back to reset, restoring the rotating connection. Then rotate the sleeve 235 to disengage it from the limiting tube 234 along the thread, and remove the old filter screen 236; place the new filter screen 236 into the fitting space between the annular rod-shaped protrusion below the limiting tube 234 and the inner cavity of the sleeve 235, rotate the sleeve 235 in the opposite direction to tighten the sleeve 235 and the limiting tube 234, and fix the new filter screen 236.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lake water body monitoring pretreatment device comprising a support frame (1), characterized in that: A pretreatment mechanism (2) is provided above the support frame (1): The cleaning assembly (21) includes a support plate (211) fixedly installed above the support frame (1), a housing (212) fixedly installed above the support plate (211), a movable frame (213) fixedly installed below the support plate (211), a baffle (214) fixedly installed on the outside of the movable frame (213), a scraper (215) fixedly installed inside the movable frame (213), and a transmission gear ring (216) inserted through the outside of the movable frame (213). The cleaning assembly (21) also includes a transmission motor (217) fixedly installed above the support plate (211), and a transmission gear (218) fixedly installed on the outside of the shaft of the transmission motor (217). A filter assembly (22) is disposed inside the cleaning assembly (21) for filtering impurities in the water; A delivery component (23) is positioned above the cleaning component (21) for delivering water samples.

2. The lake water monitoring pretreatment device according to claim 1, characterized in that: The support frame (1) has a counterweight at its bottom center, the support plate (211) has a tubular protrusion at its bottom, the movable frame (213) and the support plate (211) are rotatably connected, the baffle (214) is installed in a ring at the opening at the bottom of the movable frame (213), the scraper (215) is installed in a cross shape inside the movable frame (213), the transmission gear ring (216) and the transmission gear (218) mesh with each other, and the shaft of the transmission motor (217) passes through the support plate (211).

3. The lake water monitoring pretreatment device according to claim 1, characterized in that: The filter assembly (22) includes a transmission tube (221) movably mounted above the support plate (211), a pressure bearing (222) fixedly mounted at the bottom end of the transmission tube (221), a drive gear ring (223) fixedly mounted on the outside of the transmission tube (221), the filter assembly (22) also includes a drive motor (224) fixedly mounted above the support plate (211), a drive gear (225) inserted through the outside of the shaft of the drive motor (224), an inner tube (226) movably mounted inside the transmission tube (221), and a mesh plate (227) fixedly mounted on the bottom outside of the inner tube (226).

4. The lake water monitoring pretreatment device according to claim 3, characterized in that: The transmission tube (221) and the support plate (211) are rotatably connected. The bottom end of the pressure bearing (222) is in contact with the bottom of the support plate (211). The drive gear ring (223) and the drive gear (225) mesh with each other. The top two sides of the inner tube (226) are provided with protruding structures. The inner wall of the transmission tube (221) is provided with a groove that fits into the protruding structure of the inner tube (226). The inner tube (226) and the transmission tube (221) are slidably connected. The bottom end of the inner tube (226) is provided with a metal mesh structure. The mesh plate (227) is installed on the bottom outside of the inner tube (226) by bolts.

5. The lake water monitoring pretreatment device according to claim 4, characterized in that: The conveying assembly (23) includes a water pump (231) fixedly installed above the housing (212). A metal pipe (232) is fixedly installed at the water inlet end of the water pump (231). A flexible hose (233) is fixedly installed at the end of the metal pipe (232). A limiting tube (234) is fixedly installed at the bottom end of the flexible hose (233). A sleeve (235) is threaded onto the outside of the limiting tube (234). A filter screen (236) is fitted between the limiting tube (234) and the sleeve (235).

6. The lake water monitoring pretreatment device according to claim 5, characterized in that: The metal tube (232) has a support structure on its outer side that is fixedly connected to the top of the outer shell (212). The end of the flexible tube (233) is located at the center of the grid plate (227) below the inner tube (226). The sleeve (235) has a threaded structure on its outer side. The limiting tube (234) has a ring-shaped protrusion below it, and the bottom end of the protrusion contacts the bottom surface of the inner cavity of the sleeve (235). The sleeve (235) has an opening structure below it. The filter (236) is fitted between the sleeve (235) and the limiting tube (234).

Images