A device for cleaning sediment from a groundwater monitoring well

Abstract

This utility model discloses a device for cleaning sediment from groundwater monitoring wells, including a submersible pump. A fixing plate is fixedly connected to the outer wall of the submersible pump, and a collection chamber is fixedly connected to the bottom of the fixing plate. A connecting seat is provided below the collection chamber, and a crushing mechanism is provided at the bottom of the connecting seat. The crushing mechanism includes a mounting base, a connecting column, crushing teeth, teeth, a clamping plate, and a spring. This utility model relates to the field of groundwater monitoring well maintenance technology. This device for cleaning sediment from groundwater monitoring wells, through the cooperation of the mounting base, connecting column, crushing teeth, teeth, clamping plate, and spring, enables the device to actively crush hardened mud or small rocks. Furthermore, it allows for the replacement of crushing teeth with different tooth shapes according to the actual hardness of the sediment, which not only improves the cleaning effect of sediment in the well but also greatly enhances the adaptability of the crushing structure to the actual working environment, further improving the cleaning capacity and service life.

Description

Technical Field

[0001] This utility model relates to the field of groundwater monitoring well maintenance technology, specifically a device for cleaning sediment from groundwater monitoring wells. Background Technology

[0002] Groundwater monitoring wells are functional wells specifically designed for long-term or periodic collection of groundwater-related data. They are core infrastructure for groundwater environmental monitoring, resource assessment, and protection.

[0003] For example, a groundwater monitoring well cleaning device (authorization number CN215889981U) includes an external steel pipe with connecting flanges fixedly installed at the top and bottom. A submersible pump is fixedly installed inside the external steel pipe, below the top connecting flange. The top connecting flange has three through holes for the inlet and outlet of the three cables of the submersible pump. This groundwater monitoring well cleaning device works by installing the device into the monitoring well and using the suction generated by the submersible pump to draw the silt and large particles of sediment at the bottom of the well into the interior of the external steel pipe. The silt is pumped out with the water flow from the submersible pump, and the large particles of mud and sand are adsorbed and accumulated at the bottom of the steel pipe. After cleaning or when there is a lot of sediment inside the external steel pipe, the bottom connecting flange is opened and the sediment is poured out. It is extremely convenient to use. However, in actual use, when hardened mud or small rocks or other hard sediments appear at the bottom of the well, traditional groundwater monitoring well sediment cleaning devices may experience cleaning interruptions due to large particles clogging the suction channel. This can result in frequent cleaning of the suction channel, reducing cleaning efficiency, or even damage to the submersible pump, thus reducing the lifespan of the entire cleaning device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a groundwater monitoring well sediment cleaning device. It solves the problem that in actual use, when hard sediment such as hardened mud or small rocks appears at the bottom of the well, traditional groundwater monitoring well sediment cleaning devices may experience cleaning interruptions due to large particles clogging the suction channel. This can lead to frequent cleaning of the suction channel, reducing cleaning efficiency, or even damage to the submersible pump, thus reducing the service life of the entire cleaning device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a groundwater monitoring well sediment cleaning device, comprising a submersible pump, a fixing plate fixedly connected to the outer wall of the submersible pump, a collection chamber fixedly connected to the bottom of the fixing plate, a connecting seat provided below the collection chamber, and a crushing mechanism provided at the bottom of the connecting seat; the crushing mechanism comprises a mounting base, a connecting column, crushing teeth, teeth, a clamping plate, and a spring; the mounting base is threadedly connected to the outer wall of the connecting seat, the connecting column is fixedly connected to the bottom of the mounting base, the crushing teeth are threadedly connected to the outer wall of the connecting column, the top of the crushing teeth is attached to the bottom of the mounting base, teeth are fixedly connected to the outer wall of the crushing teeth, a clamping plate is provided inside the crushing teeth, the top of the clamping plate is attached to the bottom of the connecting column, a spring is fixedly connected to the bottom of the clamping plate, and the end of the spring is fixedly connected to the bottom of the inner wall of the crushing teeth.

[0006] Preferably, the input end of the submersible pump is connected to a suction pipe, and a guide mechanism is provided below the suction pipe; the guide mechanism includes a filter seat, a limiting cover, a spiral groove, and a conveying pipe; the filter seat is threaded to the outer wall of the suction pipe, the bottom of the filter seat is fixedly connected to the limiting cover, the inner wall of the limiting cover is machined with a spiral groove, and a conveying pipe is provided below the limiting cover, the bottom of the conveying pipe is fixedly connected to the bottom of the inner wall of the collection chamber.

[0007] Preferably, a first connecting pipe is fixedly connected to the top of the fixing plate, and a second connecting pipe is fixedly connected to the end of the first connecting pipe.

[0008] Preferably, the top of the submersible pump is connected to a waterproof pipe, the outer wall of which is sequentially inserted into the inner walls of the first connecting pipe and the second connecting pipe, and a sewage pipe is provided on the side of the waterproof pipe. The end of the sewage pipe is connected to the output end of the submersible pump, and the outer wall of the sewage pipe is sequentially inserted into the inner walls of the first connecting pipe and the second connecting pipe.

[0009] Preferably, the outer wall of the submersible pump is fitted with a filter screen, the inner wall of the filter screen is fitted with the outer wall of the suction pipe, and the top of the filter screen is fixedly connected to the bottom of the fixing plate.

[0010] Preferably, a backflow preventer is fixedly connected to the bottom of the collection chamber, and the bottom of the backflow preventer is fixedly connected to the top of the connecting seat. Beneficial effects

[0011] This utility model provides a device for cleaning sediment from groundwater monitoring wells. It offers the following advantages: Through the cooperation of a mounting base, connecting column, crushing teeth, toothed blades, a clamping plate, and a spring, this device can actively crush hardened mud or small rocks. Furthermore, it allows for the replacement of crushing teeth with different shapes to suit the actual hardness of the sediment. This not only improves the cleaning effect of sediment in the well but also greatly enhances the adaptability of the crushing structure to the actual working environment, further improving cleaning capacity and service life.

[0012] By combining the filter seat, limiting cover, spiral groove and conveying pipe, the water flow is guided to carry the sediment upward along the spiral trajectory. Centrifugal force is used to throw the sediment against the groove wall and transport it to the collection bin in a directional manner. This allows the sediment to actively gather and reduces disorderly diffusion in the well, thereby improving sediment collection efficiency, preventing impurities from flowing back to the bottom of the well, and greatly reducing the subsequent cleaning burden. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 An exterior schematic diagram; Figure 3 for Figure 1 A structural schematic diagram of the connecting seat, mounting seat, and connecting column; Figure 4 for Figure 1 A schematic diagram of the structure of the suction pipe, filter seat, and limiting cover.

[0014] In the diagram: 1. Submersible pump; 2. Fixed plate; 3. Collection chamber; 4. Connecting seat; 5. Mounting seat; 6. Connecting column; 7. Crushing tooth; 8. Tooth; 9. Clamping plate; 10. Spring; 11. Suction pipe; 12. Filter seat; 13. Limiting cover; 14. Spiral groove; 15. Conveying pipe; 16. First connecting pipe; 17. Second connecting pipe; 18. Waterproof pipe; 19. Sewage pipe; 20. Filter screen; 21. Check valve. Detailed Implementation

[0015] 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.

[0016] In actual use, when hardened mud or small rocks or other hard sediments appear at the bottom of the well, traditional groundwater monitoring well sediment cleaning devices may experience cleaning interruptions due to large particles clogging the suction channel. This can result in frequent cleaning of the suction channel, reducing cleaning efficiency, or even damage to the submersible pump, thus reducing the service life of the entire cleaning device.

[0017] In view of this, the present invention provides a groundwater monitoring well sediment cleaning device. This device, through the cooperation of a mounting base, connecting column, crushing teeth, toothed blades, a clamping plate, and a spring, enables it to actively crush hardened mud clumps or small rocks. Furthermore, it allows for the replacement of crushing teeth with different tooth shapes according to the actual hardness of the sediment, thus improving not only the cleaning effect of the sediment in the well but also greatly enhancing the adaptability of the crushing structure to the actual working environment, further improving cleaning capacity and service life.

[0018] Those skilled in the art will connect the electrical components and their compatible power supplies in this case using wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without further explanation of electrical control.

[0019] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0020] Example 1, by Figure 1-4 It is known that a groundwater monitoring well sediment cleaning device includes a submersible pump 1, a fixing plate 2 fixedly connected to the outer wall of the submersible pump 1, a collection chamber 3 fixedly connected to the bottom of the fixing plate 2, a connecting seat 4 provided below the collection chamber 3, and a crushing mechanism provided at the bottom of the connecting seat 4; the crushing mechanism includes a mounting base 5, a connecting column 6, crushing teeth 7, teeth 8, a clamping plate 9, and a spring 10; the mounting base 5 is threadedly connected to the outer wall of the connecting seat 4, the connecting column 6 is fixedly connected to the bottom of the mounting base 5, the crushing teeth 7 are threadedly connected to the outer wall of the connecting column 6, the top of the crushing teeth 7 is attached to the bottom of the mounting base 5, the teeth 8 are fixedly connected to the outer wall of the crushing teeth 7, the clamping plate 9 is provided inside the crushing teeth 7, the top of the clamping plate 9 is attached to the bottom of the connecting column 6, the spring 10 is fixedly connected to the bottom of the clamping plate 9, and the end of the spring 10 is fixedly connected to the bottom of the inner wall of the crushing teeth 7; In the specific implementation process, it is worth noting that the specific model of submersible pump 1 can be selected according to actual needs, as long as it meets the operational requirements. For example, it can be model QDX1.5-16-0.37, with a flow rate of 1.5-10 m³ / h, a head of 15-16 m, and an IP68 protection rating. It is equipped with a YCW-0.6 / 1kV 3×1.5mm² (heavy-duty rubber-sheathed waterproof cable). During use, its power cord can be directly connected to an external power source. The fixing plate 2 is a stainless steel ring-shaped structure, fixed to the outer wall of submersible pump 1. The collection chamber 3 is made of high-strength PVC and consists of two parts, which are fixed together with bolts. In actual use, it can be lengthened as needed to increase the volume of the collection chamber 3. Its top is connected to the fixing plate 2 with bolts, and its bottom has a through hole with a flange structure for easy connection to subsequent structures. A sealing ring is installed between the fixing plate 2 and the collection chamber 3. Additional sealing rings can be added to other parts as needed. The sealing ring and connecting seat 4 are tubular structures with a flange at the top for easy fixing. External threads are machined on the lower outer wall. The material can be stainless steel. The mounting seat 5 is made of the same material as the connecting seat 4, and is a circular ring with internal threads on its inner wall. A circular through hole in its center connects to the inner wall of the connecting seat 4. The number of connecting posts 6 can be set according to actual needs, for example, four. They are made of the same material as the mounting seat 5, with external threads on their outer wall, and their bottom is machined into a trapezoidal frustum shape. The breaking teeth 7 are made of WC-Co alloy, and their number is the same as the connecting posts 6. Internal threads are machined on their inner wall, enabling… The device is threaded to the external thread of the connecting column 6, and a sealing ring is provided between the crushing tooth 7 and the mounting base 5. Multiple teeth 8 are machined onto the outer wall of the crushing tooth 7 to improve its crushing effect. The clamping plate 9 is made of stainless steel and is circular in shape. A groove is machined on its top to accommodate the tapered structure at the end of the connecting column 6. The spring 10 can be made of stainless steel spring steel, and its elastic coefficient can be selected according to actual needs to meet operational requirements. In actual operation, when cleaning the interior of the groundwater monitoring well is required, the operator places the device inside the well and connects it via the power cord of the submersible pump 1. An external power source activates submersible pump 1, which then begins working to clean foreign objects from inside the monitoring well. The teeth 8 of the crushing gear 7 at the bottom of the device directly contact the sediment. The high-frequency vibration generated by the submersible pump 1 is transmitted through the collection chamber 3, connecting seat 4, and mounting seat 5 to the connecting column 6. The connecting column 6 then drives the crushing gear 7 to vibrate synchronously. The teeth 8 use this vibration to generate a high-frequency impact on the sediment, gradually breaking it into smaller particles. If harder sediment is encountered, workers apply downward pressure using a ground-suspended device. This pressure is transmitted through the mounting seat 5 and connecting column 6 to the crushing gear 7. The protruding bottom of the crushing gear 7 utilizes the stress concentration effect at its tip to split the hard sediment.The crushed sediment enters the collection chamber 3 through the mounting base 5 and connecting base 4. Smaller sediment particles are directly discharged outside the well via the submersible pump 1 along with the wastewater, while larger sediment particles remain inside the collection chamber 3 and are removed when disassembling the collection chamber 3 after work is completed. When it is necessary to replace the crushing teeth 7, the crushing teeth 7 can be rotated to separate them from the connecting column 6. Crushing teeth 7 with different tooth profiles can be replaced. After reinstallation, the rebound force of the spring 10 pushes the clamping plate 9 to tightly fit against the bottom of the connecting column 6, ensuring the threaded connection between the crushing teeth 7 and the connecting column 6, thereby guaranteeing the stability of the crushing process. Furthermore, the input end of the submersible pump 1 is connected to a suction pipe 11, and a guide mechanism is provided below the suction pipe 11; the guide mechanism includes a filter seat 12, a limiting cover 13, a spiral groove 14, and a conveying pipe 15; the filter seat 12 is threaded to the outer wall of the suction pipe 11, the bottom of the filter seat 12 is fixedly connected to the limiting cover 13, the inner wall of the limiting cover 13 is machined with a spiral groove 14, the bottom of the limiting cover 13 is provided below the limiting cover 13, and the bottom of the conveying pipe 15 is fixedly connected to the bottom of the inner wall of the collection chamber 3; In the specific implementation process, it is worth noting that the suction pipe 11 is directly connected to the input end of the submersible pump 1. Its overall shape is similar to a trumpet, with the wider end facing downwards. External threads are machined on the lower part of its outer wall. The material can be reinforced PVC. The filter seat 12 is generally circular, with a circular groove machined on its top. Internal threads are machined on the inner wall of the groove, and a filter screen is fixedly connected to its center. The filter screen's aperture can be 5mm-7mm. The filter screen can be replaced after wear. The limiting cover 13 is generally cylindrical and umbrella-shaped, and its material can be stainless steel. A spiral groove 14 is machined on the inner wall of the limiting cover 13, and its specific parameters can be groove depth... The screw diameter is 5-8mm and the pitch is 15-20mm. The surface is chrome-plated. The material of the conveying pipe 15 is the same as that of the suction pipe 11. The top opening is funnel-shaped. In actual operation, when the submersible pump 1 pumps water, the water in the well carries the broken sediment through the mounting seat 5, the connecting seat 4 and the conveying pipe 15 into the area of ​​the limiting cover 13 inside the collection chamber 3. As the water flows up along the spiral groove 14, due to centrifugal force and spiral guidance, large particles of sediment will be thrown into the groove and slide down along the spiral trajectory, eventually accumulating at the bottom of the collection chamber 3, thereby achieving the separation of large particles of sediment from fine mud and sand, and thus improving the service life of the submersible pump 1. Furthermore, a first connecting pipe 16 is fixedly connected to the top of the fixing plate 2, and a second connecting pipe 17 is fixedly connected to the end of the first connecting pipe 16. In the specific implementation process, it is worth noting that both ends of the first connecting pipe 16 are processed with flange structures, which are fixed to the fixing plate 2 and the second connecting pipe 17 by bolts respectively. The material can be glass fiber reinforced plastic. The connecting part of the second connecting pipe 17 is the same as that of the first connecting pipe 16. Its main body is a corrugated pipe style, which can be lengthened or shortened as needed to meet the actual working needs. When the submersible pump 1 needs to be maintained, it can be quickly repaired by removing the first connecting pipe 16 and the second connecting pipe 17, thereby improving the maintenance convenience of the groundwater monitoring well sediment cleaning device. Among them, sealing rings are provided between the fixing plate 2, the first connecting pipe 16 and the second connecting pipe 17. Example 2, by Figure 1-4 It can be seen that the top of the submersible pump 1 is connected to a waterproof pipe 18, the outer wall of the waterproof pipe 18 is sequentially inserted into the inner wall of the first connecting pipe 16 and the second connecting pipe 17, and a sewage pipe 19 is provided on the side of the waterproof pipe 18. The end of the sewage pipe 19 is connected to the output end of the submersible pump 1, and the outer wall of the sewage pipe 19 is sequentially inserted into the inner wall of the first connecting pipe 16 and the second connecting pipe 17. In the specific implementation process, it is worth noting that the waterproof pipe 18 is connected to the terminal of the submersible pump 1 to ensure that the power line of the submersible pump 1 is not affected by the water inside the monitoring well, thus ensuring the stability of power transmission and reducing the risk of power leakage. The waterproof pipe 18 can be made of polytetrafluoroethylene. The sewage pipe 19 is directly connected to the output end of the submersible pump 1. Its material can be ultra-high molecular weight polyethylene, which has strong wear resistance, smooth inner wall, and high strength, ensuring the transportation of sediment and improving the working stability of the groundwater monitoring well sediment cleaning device. Furthermore, a filter screen 20 is fitted onto the outer wall of the submersible pump 1, the inner wall of the filter screen 20 is fitted onto the outer wall of the suction pipe 11, and the top of the filter screen 20 is fixedly connected to the bottom of the fixing plate 2. In the specific implementation process, it is worth noting that the filter screen 20 is made of stainless steel, and its pore size can be selected according to actual needs, such as 5mm-8mm. It is fitted onto the outer wall of the submersible pump 1 to prevent the sediment inside the collection chamber 3 from scratching the submersible pump 1. At the same time, it can also ensure that the water inside the collection chamber 3 can directly contact the outer wall of the submersible pump 1, thereby ensuring the heat dissipation effect of the submersible pump 1. Furthermore, a backstop 21 is fixedly connected to the bottom of the collection chamber 3, and the bottom of the backstop 21 is fixedly connected to the top of the connecting seat 4. In the specific implementation process, it is worth noting that the working principle of the check valve 21 is the same as that of the check valve. Its material can be stainless steel, and its internal one-way sealing material can be nitrile rubber. In actual use, the rubber sealing surface is oil and water resistant, the stainless steel skeleton ensures the structural strength, and the one-way sealing pressure is ≥0.1MPa to prevent backflow, thereby ensuring the cleaning and collection efficiency of the groundwater monitoring well cleaning sediment removal device. 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 device for cleaning sediment from a groundwater monitoring well, comprising a submersible pump (1), characterized in that: A fixing plate (2) is fixedly connected to the outer wall of the submersible pump (1), and a collection chamber (3) is fixedly connected to the bottom of the fixing plate (2). A connecting seat (4) is provided below the collection chamber (3), and a crushing mechanism is provided at the bottom of the connecting seat (4). The crushing mechanism includes a mounting base (5), a connecting column (6), crushing teeth (7), teeth (8), a clamping plate (9), and a spring (10); The mounting base (5) is threaded to the outer wall of the connecting base (4). The bottom of the mounting base (5) is fixedly connected to the connecting column (6). The outer wall of the connecting column (6) is threadedly connected to the breaking tooth (7). The top of the breaking tooth (7) is attached to the bottom of the mounting base (5). The outer wall of the breaking tooth (7) is fixedly connected to the tooth (8). The inside of the breaking tooth (7) is provided with a pressing plate (9). The top of the pressing plate (9) is attached to the bottom of the connecting column (6). The bottom of the pressing plate (9) is fixedly connected to the spring (10). The end of the spring (10) is fixedly connected to the bottom of the inner wall of the breaking tooth (7).

2. The device for cleaning the sediment of a groundwater monitoring well according to claim 1, characterized in that: The input end of the submersible pump (1) is connected to a suction pipe (11), and a guide mechanism is provided below the suction pipe (11). The guiding mechanism includes a filter seat (12), a limiting cover (13), a spiral groove (14), and a conveying pipe (15); The filter seat (12) is threaded to the outer wall of the suction pipe (11). The bottom of the filter seat (12) is fixedly connected to the limit cover (13). The inner wall of the limit cover (13) is machined with a spiral groove (14). A conveying pipe (15) is provided below the limit cover (13). The bottom of the conveying pipe (15) is fixedly connected to the bottom of the inner wall of the collection chamber (3).

3. The device of claim 1, wherein: The top of the fixing plate (2) is fixedly connected to a first connecting pipe (16), and the end of the first connecting pipe (16) is fixedly connected to a second connecting pipe (17).

4. The device of claim 3, wherein: The top of the submersible pump (1) is connected to a waterproof pipe (18). The outer wall of the waterproof pipe (18) is sequentially inserted into the inner wall of the first connecting pipe (16) and the second connecting pipe (17). A sewage pipe (19) is provided on the side of the waterproof pipe (18). The end of the sewage pipe (19) is connected to the output end of the submersible pump (1). The outer wall of the sewage pipe (19) is sequentially inserted into the inner wall of the first connecting pipe (16) and the second connecting pipe (17).

5. The device of claim 2, wherein: The outer wall of the submersible pump (1) is fitted with a filter screen (20), the inner wall of the filter screen (20) is fitted with the outer wall of the suction pipe (11), and the top of the filter screen (20) is fixedly connected to the bottom of the fixing plate (2).

6. The device of claim 1, wherein: The bottom of the collection chamber (3) is fixedly connected to a backstop (21), and the bottom of the backstop (21) is fixedly connected to the top of the connecting seat (4).

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