Self-cleaning hydrological monitoring filter

Abstract

The utility model discloses a self -cleaning formula hydrology monitoring filter belongs to hydrology monitoring field. The utility model relates to a kind of self -cleaning formula hydrology monitoring filter, including filter jar, the top of filter jar is provided with sealing assembly, the outside of filter jar is fixed with the water inlet pipe of oblique arrangement, the inside of filter jar is provided with support assembly, support assembly is provided with filter screen, the inside bottom end of filter jar is fixed with positioning ring. The utility model solves the problem that the existing hydrology monitoring filter lacks the unpowered cleaning structure of filter screen when using, the filter screen is easy to be blocked due to impurity accumulation, affects the accuracy of monitoring data, the utility model is optimized filter internal structure, when water flow enters equipment, high-speed cyclone is formed, water and impurity are effectively separated using centrifugal force effect, impurity is deposited along inner wall under the action of gravity, finally automatically discharged through waste pipe, this process does not need additional power device, can continuously remove silt impurity.

Description

Technical Field

[0001] This utility model relates to the field of hydrological monitoring, specifically a self-cleaning hydrological monitoring filter. Background Technology

[0002] Hydrological monitoring filters are key devices used for water quality sampling and data acquisition. They are mainly used to filter impurities such as suspended solids, silt, and algae in water bodies to ensure the accuracy of monitoring data and the stability of instruments. Their core structure includes filter screens, filter membranes or filter elements. The materials are mostly stainless steel, ceramic or polymer materials, which have corrosion resistance and anti-clogging properties. They are usually integrated into automatic monitoring stations or portable samplers and can be adapted to sensors such as turbidity, pH, and dissolved oxygen. They are suitable for scenarios such as rivers, lakes, and groundwater. Existing hydrological monitoring filters lack a power-free cleaning mechanism for the filter screen during use. As a result, the filter screen is prone to clogging due to the accumulation of impurities after long-term operation. This not only reduces the efficiency of water flow but also affects the accuracy of monitoring data and may even cause sensor misreading or equipment damage. Although some models support self-cleaning functions, they still rely on electricity or manual intervention, resulting in high maintenance costs in unattended environments in the field. This problem limits the application of filters in long-term continuous monitoring, especially in water bodies with high turbidity or rich in organic matter.

[0003] In summary, to improve the long-term stability and data reliability of hydrological monitoring filters, it is necessary to solve the problem of filter screen clogging due to impurity accumulation, so that it can maintain high-efficiency filtration performance even in unattended or high-turbidity environments, thereby extending the equipment maintenance cycle and improving monitoring accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning hydrological monitoring filter. By optimizing the internal structure of the filter, the water flow will rotate and generate centrifugal force after entering the filter, thereby achieving the separation of rainwater and impurities. The impurities will be discharged from the filter by gravity, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning hydrological monitoring filter, comprising a filter tank, a sealing assembly at the top of the filter tank, an inclined inlet pipe fixed to the outside of the filter tank, a support assembly inside the filter tank, a filter screen on the support assembly, a positioning ring fixed to the bottom of the filter tank, a funnel installed on the positioning ring, an outlet pipe and a waste pipe installed on the outside of the filter tank, a connecting pipe installed at the end of the inlet pipe via a flange, and a flow regulating mechanism for adjusting the inlet water volume on the connecting pipe.

[0006] Preferably, the sealing assembly includes a connecting ring fixed to the top of the filter tank, an external thread formed on the outside of the connecting ring, a sealing groove formed on the top of the filter tank, and a sealing cap provided on the outside of the connecting ring, the sealing cap being threadedly connected to the connecting ring.

[0007] Preferably, the support assembly includes a fixing ring fixed inside the filter tank, multiple support plates installed at the bottom of the fixing ring, a slot formed on the fixing ring, and a locking block fixed to the outside of the filter screen. The locking block is adapted to the slot, and the support plates are fixedly connected to the inner wall of the filter tank.

[0008] Preferably, the flow regulating mechanism includes a water-blocking component disposed on the connecting pipe, a guide component disposed on the outside of the connecting pipe, a rotating component disposed on the guide component, and a drive component disposed on the rotating component. The drive component drives the water-blocking component to rotate through the rotating component, and the guide component is used to limit the rotation component.

[0009] Preferably, the water-blocking assembly includes a rotating shaft disposed on the connecting pipe and a baffle plate fixed at the bottom of the rotating shaft, wherein the rotating shaft is rotatably and sealed to the connecting pipe.

[0010] Preferably, the rotating assembly includes a gear fixed to the outside of the rotating shaft and a rack disposed on the side of the gear, the rack meshing with the gear.

[0011] Preferably, the guide assembly includes a support rod fixed to the connecting pipe and a guide rail fixed to the end of the support rod, with the rack slidably connected to the guide rail.

[0012] Preferably, the drive assembly includes two supports fixed on the connecting pipe, a lead screw rotatably connected between the two supports, and a knob fixed at the end of the lead screw. The lead screw passes through a rack and is threadedly connected to the rack.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention optimizes the internal structure of the filter, creating a high-speed vortex when water enters the device. Centrifugal force effectively separates water from impurities. This design causes heavier suspended particles to be thrown outwards during rotation and settle along the inner wall under gravity, eventually being automatically discharged from the system through the bottom waste pipe. This process requires no additional power unit and continuously removes accumulated impurities, significantly reducing the risk of filter clogging. Simultaneously, the turbulence generated by the vortex prevents algae and other organic matter from adhering to the filter surface, ensuring a stable water flow during long-term operation. It is suitable for long-term, unattended water quality monitoring in the field, providing a reliable guarantee for obtaining continuous and accurate hydrological data. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a three-dimensional structural diagram of the connecting pipe of this utility model; Figure 3 This is a schematic diagram of the three-dimensional structure of the rack of this utility model; Figure 4 This is a three-dimensional structural diagram of the baffle plate of this utility model; Figure 5 This is a three-dimensional structural diagram of the internal structure of the filter tank of this utility model; Figure 6 This is a schematic diagram of the support component structure of this utility model.

[0015] In the diagram: 1. Filter tank; 21. Connecting ring; 22. External thread; 23. Sealing groove; 24. Sealing cover; 3. Inlet pipe; 41. Fixing ring; 42. Support plate; 43. Clamping block; 5. Filter screen; 6. Positioning ring; 7. Funnel; 8. Outlet pipe; 9. Waste pipe; 10. Connecting pipe; 111. Rotating shaft; 112. Baffle plate; 113. Gear; 114. Support rod; 115. Guide rail; 116. Support; 117. Lead screw; 118. Knob; 119. Rack. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments.

[0017] Refer to the instruction manual appendix Figures 1 to 5 A self-cleaning hydrological monitoring filter includes a filter tank 1, a sealing assembly at the top of the filter tank 1, an inclined inlet pipe 3 fixed to the outside of the filter tank 1, a support assembly inside the filter tank 1, a filter screen 5 on the support assembly, a positioning ring 6 fixed to the bottom inside the filter tank 1, a funnel 7 installed on the positioning ring 6, an outlet pipe 8 and a waste pipe 9 installed on the outside of the filter tank 1, and a connecting pipe 10 installed at the end of the inlet pipe 3 via a flange, with a flow regulating mechanism for adjusting the inlet water volume on the connecting pipe 10.

[0018] It should be noted that the inclined inlet pipe 3 guides the water flow tangentially into the filter tank 1, forming a high-speed vortex. Under the action of centrifugal force, the vortex generates centrifugal force to penetrate the filter screen 5, filtering out clean water, which flows out through the outlet pipe 8. Impurities, leaves, particles, silt, etc., settle under the action of gravity. When they are deposited on the arc surface of the arc-shaped funnel 7, they accelerate downward vortex, enhancing the sewage discharge capacity of the filter tank 1. Impurities, particles, and wastewater flow out from the bottom of the funnel 7 and are discharged through the waste pipe 9. The outlet pipe 8 is located above the waste pipe 9. The flow rate of the waste pipe 9 is less than that of the inlet pipe 3 and the outlet pipe 8. Rainwater forms a vortex and turbulence in the filter screen 5, which plays an automatic cleaning role for the filter screen 5. The waste pipe 9 is located at the bottom of the filter tank 1. When no water flows into the inlet pipe 3, the water inside the filter tank 1 flows out quickly through the waste pipe 9 under the action of gravity, realizing the automatic cleaning function of the filter screen 5 without the need for backwashing.

[0019] Refer to the instruction manual appendix Figure 1 and Figure 2 The sealing assembly includes a connecting ring 21 fixed to the top of the filter tank 1, an external thread 22 opened on the outside of the connecting ring 21, a sealing groove 23 opened on the top of the filter tank 1, and a sealing cover 24 provided on the outside of the connecting ring 21. The sealing cover 24 is threadedly connected to the connecting ring 21.

[0020] It should be noted that by rotating the sealing cover 24 and connecting ring 21 in a threaded fit, and in conjunction with the function of the sealing groove 23, a reliable seal is ensured at the top of the filter tank 1 to prevent water leakage or contaminant intrusion. At the same time, it can be easily opened and closed, facilitating the maintenance or replacement of the internal filter screen 5.

[0021] Refer to the instruction manual appendix Figure 2 and Figure 6 The support assembly includes a fixing ring 41 fixed inside the filter tank 1, multiple support plates 42 installed at the bottom of the fixing ring 41, a slot opened on the fixing ring 41, and a locking block 43 fixed on the outside of the filter screen 5. The locking block 43 is adapted to the slot, and the support plate 42 is fixedly connected to the inner wall of the filter tank 1.

[0022] It should be noted that the fixing ring 41 and the support plate 42 together form a rigid support structure to ensure that the filter screen 5 remains stable under the impact of high-speed water flow. The matching design of the slot and the block 43 facilitates the quick positioning, installation and removal of the filter screen 5.

[0023] Refer to the instruction manual appendix Figures 2 to 4 The flow regulating mechanism includes a water-blocking component disposed on the connecting pipe 10, a guide component disposed on the outside of the connecting pipe 10, a rotating component disposed on the guide component, and a drive component disposed on the rotating component. The drive component drives the water-blocking component to rotate through the rotating component, and the guide component is used to limit the rotation component.

[0024] It should be noted that by operating the drive component, the water-blocking component can be driven to move through the rotating component, changing its position within the connecting pipe 10, thereby adjusting the effective water flow area of ​​the water flow channel and achieving precise control of the water inlet volume. The guide component ensures the smoothness and directionality of the movement.

[0025] Refer to the instruction manual appendix Figures 2 to 4 The water-blocking assembly includes a rotating shaft 111 mounted on the connecting pipe 10 and a baffle 112 fixed to the bottom of the rotating shaft 111. The rotating shaft 111 is rotatably and sealed to the connecting pipe 10.

[0026] It should be noted that the baffle 112 rotates with the rotating shaft 111 inside the connecting pipe 10. The change in its angle directly changes the degree of obstruction to the water flow. It is a key actuator for adjusting the water inlet volume. The sealed connection between the rotating shaft 111 and the connecting pipe 10 prevents water from leaking along the rotating shaft 111.

[0027] Refer to the instruction manual appendix Figures 2 to 4 The rotating assembly includes a gear 113 fixed to the outside of the rotating shaft 111 and a rack 119 disposed on the side of the gear 113, the rack 119 meshing with the gear 113.

[0028] It should be noted that the linear movement of the rack 119 drives the gear 113 meshing with it to rotate, which in turn drives the rotating shaft 111 and the baffle 112 to rotate.

[0029] Refer to the instruction manual appendix Figures 2 to 4 The guide assembly includes a support rod 114 fixed on the connecting pipe 10 and a guide rail 115 fixed to the end of the support rod 114, with a rack 119 slidably connected to the guide rail 115.

[0030] It should be noted that the guide rail 115 provides precise linear motion trajectory constraints for the rack 119, ensuring its smooth movement and maintaining the correct meshing relationship with the gear 113, preventing deviation or jamming during movement.

[0031] Refer to the instruction manual appendix Figures 2 to 4 The drive assembly includes two supports 116 fixed on the connecting pipe 10, a lead screw 117 rotatably connected between the two supports 116, and a knob 118 fixed at the end of the lead screw 117. The lead screw 117 passes through a rack 119 and is threadedly connected to the rack 119.

[0032] It should be noted that by manually rotating the knob 118, the lead screw 117 is driven to rotate within the support 116. The threaded engagement between the lead screw 117 and the rack 119 converts the rotational motion of the lead screw 117 into the linear motion of the rack 119, thereby realizing the manual adjustment and control of the flow rate.

[0033] Working principle: When water flows tangentially into filter tank 1 through inlet pipe 3, the inclined angle guides the water flow to form a high-speed vortex. This vortex generates centrifugal force within filter tank 1, causing impurities (such as leaves, mud, and particles) to be thrown outwards. Simultaneously, the centrifugal force drives the water flow through filter screen 5. The filtered clean water gathers upwards and flows out through outlet pipe 8. The separated impurities settle downwards along the tank wall under gravity, accelerating upon impacting the arc-shaped inner wall of funnel 7, increasing the downward speed of the vortex, and finally depositing and being discharged through waste pipe 9 at the bottom of funnel 7. It is worth noting that the flow rate of waste pipe 9 is designed to be less than that of inlet pipe 3 and outlet pipe 8. The continuous vortex and turbulence formed by the water flow within filter screen 5 itself serves to flush the filter screen 5. When inlet pipe 3 stops supplying water, the remaining water in filter tank 1 will quickly pass through under gravity. The waste pipe 9 is completely emptied, which further removes residual impurities attached to the filter screen 5, achieving an automatic cleaning function without the need for backwashing power. The sealing cover 24 is tightened by the external thread 22 on the connecting ring 21 and pressed into the sealing groove 23 to ensure a top seal. The filter screen 5 is positioned by the outer locking block 43 embedded in the slot on the fixing ring 41 and is stably supported by the support plate 42 welded to the bottom of the fixing ring 41 and the inner wall of the filter tank 1. The screw 117 is rotated by manually rotating the knob 118, which forces the threaded rack 119 to move linearly along the guide rail 115, driving the gear 113 meshing with the rack 119 to rotate, thereby driving the rotating shaft 111 and the baffle 112 fixed at the bottom of the shaft to rotate within the connecting pipe 10, thereby adjusting the size of the water inlet channel and controlling the flow rate.

[0034] 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.

[0035] 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.

Claims

1. A self-cleaning hydrological monitoring filter, comprising a filter tank (1), characterized in that, A sealing assembly is provided on the top of the filter tank (1). An inclined inlet pipe (3) is fixed on the outside of the filter tank (1). A support assembly is provided inside the filter tank (1). A filter screen (5) is provided on the support assembly. A positioning ring (6) is fixed at the bottom inside the filter tank (1). A funnel (7) is installed on the positioning ring (6). An outlet pipe (8) and a waste pipe (9) are installed on the outside of the filter tank (1). A connecting pipe (10) is installed at the end of the inlet pipe (3) through a flange. A flow regulating mechanism for adjusting the inlet water volume is provided on the connecting pipe (10).

2. The self-cleaning hydrological monitoring filter according to claim 1, characterized in that, The sealing assembly includes a connecting ring (21) fixed to the top of the filter tank (1), an external thread (22) opened on the outside of the connecting ring (21), a sealing groove (23) opened on the top of the filter tank (1), and a sealing cap (24) provided on the outside of the connecting ring (21), the sealing cap (24) being threadedly connected to the connecting ring (21).

3. The self-cleaning hydrological monitoring filter according to claim 1, characterized in that, The support assembly includes a fixing ring (41) fixed inside the filter tank (1), multiple support plates (42) installed at the bottom of the fixing ring (41), a slot opened on the fixing ring (41) and a block (43) fixed on the outside of the filter screen (5). The block (43) is adapted to the slot, and the support plate (42) is fixedly connected to the inner wall of the filter tank (1).

4. The self-cleaning hydrological monitoring filter according to claim 1, characterized in that, The flow regulating mechanism includes a water-blocking component disposed on the connecting pipe (10), a guide component disposed on the outside of the connecting pipe (10), a rotating component disposed on the guide component, and a drive component disposed on the rotating component. The drive component drives the water-blocking component to rotate through the rotating component, and the guide component is used to limit the rotation component.

5. A self-cleaning hydrological monitoring filter according to claim 4, characterized in that, The water-blocking assembly includes a rotating shaft (111) disposed on the connecting pipe (10) and a baffle (112) fixed at the bottom of the rotating shaft (111). The rotating shaft (111) is sealed and rotatably connected to the connecting pipe (10).

6. A self-cleaning hydrological monitoring filter according to claim 5, characterized in that, The rotating assembly includes a gear (113) fixed to the outside of the rotating shaft (111) and a rack (119) disposed on the side of the gear (113), the rack (119) meshing with the gear (113).

7. A self-cleaning hydrological monitoring filter according to claim 6, characterized in that, The guide assembly includes a support rod (114) fixed on the connecting pipe (10) and a guide rail (115) fixed to the end of the support rod (114), with a rack (119) slidably connected to the guide rail (115).

8. A self-cleaning hydrological monitoring filter according to claim 7, characterized in that, The drive assembly includes two supports (116) fixed on the connecting pipe (10), a lead screw (117) rotatably connected between the two supports (116), and a knob (118) fixed at the end of the lead screw (117). The lead screw (117) passes through the rack (119) and is threadedly connected to the rack (119).

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