Filtering device

Abstract

The utility model relates to a filter device which comprises a filter tank body, at least two partition plates are arranged in the filter tank body, a filter chamber is formed between every two adjacent partition plates, and a weir turning channel is arranged at the top of each partition plate. A floating object blocking mechanism is arranged on the water inlet side of each weir turning channel, and each floating object blocking mechanism comprises a supporting outer frame, a multi-stage filter screen, a height adjusting assembly and a dismounting and mounting structure. The multi-stage filter screen can efficiently intercept floating objects through inclined design, and the supporting outer frame can be installed in a lifting mode through the height adjusting assembly and can adapt to different water levels conveniently. The filter screen is mounted and replaced quickly and conveniently due to the design of a dismounting structure, and the maintenance efficiency is remarkably improved. The device has the advantages of simple structure, convenience in operation, good interception effect, convenience in maintenance and the like, and is suitable for the field of water treatment.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a filtration device. Background Technology

[0002] With the continuous development of water treatment technology, filtration devices are playing an increasingly important role in the water treatment process. Existing filtration devices include a filter tank body containing at least two baffles, with filtration chambers formed between adjacent baffles. The top of each baffle has a weir channel for water flow to overcome. Water enters from one end of the filter tank body, passes through the weir channel sequentially into each filtration chamber, and then flows out from the last filtration chamber, thus achieving the filtration effect. While existing filtration devices can achieve basic filtration functions when water flows through the weir channel, they still have some shortcomings in intercepting floating debris and ease of maintenance.

[0003] 1. Poor interception of floating debris: Existing filtration devices typically use a single filter structure, which is inefficient at intercepting floating debris, especially for debris of varying sizes and densities, where a single filter is insufficient for effective interception. Furthermore, the unreasonable tilting direction of the filter allows floating debris to easily escape or become randomly distributed on the filter, increasing the difficulty of cleaning.

[0004] 2. Complex filter replacement: Existing filtration devices often require the disassembly of a large number of parts when replacing the filter, which is cumbersome and time-consuming. This design not only increases the workload of maintenance, but may also lead to the risk of damage or leakage of the equipment during maintenance.

[0005] 3. Inconvenient height adjustment: Existing filtration devices are usually fixed in the filtration tank, making it impossible to flexibly adjust the height of the filter screen according to changes in water level. This design may result in the filter screen failing to effectively intercept floating debris when water level fluctuates significantly, affecting the filtration effect. Utility Model Content

[0006] The purpose of this invention is to provide a filtration device that solves the problems of fixed filter height, low interception efficiency, and inconvenient replacement in the prior art by setting a floating object blocking mechanism.

[0007] To achieve the above objectives, this utility model provides a filtration device, including a filter tank body. The filter tank body contains at least two partitions, forming a filtration chamber between adjacent partitions. Each partition has a weir channel at its top for water flow overtopping. Each weir channel has a floating debris blocking mechanism on its inlet side. The floating debris blocking mechanism includes a supporting frame, a multi-stage filter screen, a height adjustment component, and a disassembly / removal structure. The supporting frame is vertically and flexibly installed within the filtration chamber via the height adjustment component. The multi-stage filter screen is configured to intercept floating debris in the water flow, with its tilt direction forming an acute angle with the water flow direction. The disassembly / removal structure is located between the supporting frame and the multi-stage filter screen to enable rapid replacement of the multi-stage filter screen.

[0008] By adopting the above technical solution, the supporting outer frame is the basic structure of the entire floating object blocking mechanism, used to support the multi-stage filter screens; the multi-stage filter screens intercept floating objects in the water flow, achieving multi-stage filtration; the height adjustment component can flexibly adjust the position of the multi-stage filter screens according to changes in water flow height, ensuring that the water flow can pass through the filter screens evenly, avoiding local water flow that is too fast or too slow, thereby improving filtration efficiency and ensuring that the filter screens are always in optimal working condition; the disassembly and assembly structure makes it more convenient to replace the multi-stage filter screens, reducing maintenance time and workload.

[0009] The multi-stage filter screen is further configured such that its tilt direction forms an acute angle with the water flow direction.

[0010] By adopting the above technical solution, the inclined design makes it easier for floating debris to be intercepted and collected in the filter area when water flows through the filter screen, thereby improving interception efficiency. The inclined direction forms an acute angle with the water flow direction, which can guide the floating debris to move along the filter screen surface, reduce the random distribution of floating debris on the filter screen, and facilitate centralized cleaning.

[0011] The multi-stage filter screen is further configured such that: the multi-stage filter screen includes a metal woven mesh layer and a fiber filter layer tightly attached to its bottom surface, wherein the pore size of the fiber filter layer is smaller than that of the metal woven mesh layer.

[0012] By adopting the above technical solution, the combination of metal woven mesh layer and fiber filter layer can achieve multi-stage filtration and further improve the filtration effect.

[0013] The height adjustment assembly is further configured as follows: a slide rail is vertically fixed to the inner wall of the filter chamber, a slider is fixed to the outer support frame and slides with the slide rail, and a control component is used to lock the slider at any height position of the slide rail.

[0014] By adopting the above technical solution, the cooperative design of the slide rail and slider ensures that the support frame remains stable during the lifting process. The control component can quickly lock and unlock the slider, which facilitates the height adjustment of the support frame, thereby flexibly adjusting the height of the filter screen according to changes in water level.

[0015] The control component is further configured as follows: a plurality of positioning grooves spaced apart along the length of the slide rail, a slide groove disposed within the slider, a positioning rod slidably disposed in the slide groove, a spring forcing the positioning rod to be embedded in the positioning groove to achieve locking, and a control rope connecting the positioning rod and extending to the outside of the filter tank body for manually releasing the lock.

[0016] By adopting the above technical solution, the positioning grooves are spaced apart along the length of the slide rail, providing multiple locking positions. This makes the height adjustment of the support frame more flexible. The positioning rod slides in the slide groove and is embedded in the positioning groove under the action of the spring, achieving quick locking. This ensures that the support frame can be firmly fixed after being adjusted to the appropriate height. The spring force ensures that the positioning rod is firmly embedded in the positioning groove, avoiding displacement of the slider due to water flow impact or vibration. This method is low-cost and ensures the reliability of locking. The control rope connects to the positioning rod and extends to the outside of the filter tank body, making it easy for operators to manually release the lock, thus improving the convenience of maintenance and adjustment.

[0017] The disassembly and assembly structure is further configured as follows: the disassembly and assembly structure includes a placement cavity on the supporting outer frame for accommodating multi-stage filters, an inlet and outlet channel communicating with the outside of the placement cavity, a cover plate hinged to the opening of the inlet and outlet channel, a fixing clip hinged to the cover plate and engaged with the supporting outer frame, and a torsion spring for forcing the fixing clip to engage with the supporting outer frame.

[0018] By adopting the above technical solution, the design of the placement chamber and inlet / outlet channel allows for easy insertion and removal of multi-stage filters. The combined design of the cover plate and fixing clips allows for quick fixing or disassembly of multi-stage filters. Operators can quickly open the cover plate, remove the old filter, install the new filter, and then close the cover plate and lock the fixing clips. The whole process is simple and quick, reducing maintenance time and workload, and improving the operating efficiency of the equipment. The combination design of the fixing clips and torsion springs ensures that the filter remains stable after installation.

[0019] The setting is further configured such that there are two fixing clips, and a linkage rod connects the two fixing clips.

[0020] By adopting the above technical solution, the linkage rod can achieve synchronous operation of the two fixed clips, further improving the efficiency of disassembly and assembly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this embodiment;

[0023] Figure 3 This is a schematic diagram of the supporting outer frame in this embodiment;

[0024] Figure 4This is a cross-sectional view of the height adjustment component in this embodiment;

[0025] Figure 5 This is an example. Figure 2 Enlarged view at point A in the middle;

[0026] In the diagram: 1. Filter tank body; 11. Baffle plate; 12. Filter chamber; 13. Overturning channel; 2. Floating debris blocking mechanism; 21. Support frame; 22. Multi-stage filter screen; 221. Metal woven mesh layer; 222. Fiber filter layer; 23. Height adjustment component; 25. Disassembly and assembly structure; 231. Slide rail; 232. Slider; 233. Slide groove; 24. Control component; 241. Positioning groove; 242. Positioning rod; 243. Spring; 245. Control rope; 251. Placement chamber; 256. Inlet and outlet channel; 252. Cover plate; 253. Fixing clip; 254. Torsion spring; 26. Linkage rod. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] refer to Figures 1 to 5 A filtration device includes a filter tank body 1, which contains at least two partitions 11. Adjacent partitions 11 form filter chambers 12. Each filter chamber 12 has a sand removal port at its bottom, and all sand removal ports converge into a main pipe for sand discharge. The top of each partition 11 has a rectangular weir channel 13 for water flow overpass. Each weir channel 13 has a floating debris blocking mechanism 2 on its inlet side. The floating debris blocking mechanism 2 includes a supporting frame 21, multi-stage filter screens 22, a height adjustment component 23, and a disassembly / removal structure 25. The supporting frame 21 is vertically and flexibly installed within the filter chambers 12 via the height adjustment component 23. The multi-stage filter screens 22 are configured to intercept floating debris in the water flow. The disassembly / removal structure 25 is located between the supporting frame 21 and the multi-stage filter screens 22 to enable quick replacement of the multi-stage filter screens 22.

[0029] The support frame 21 is rectangular in shape and can be raised and lowered within the filter chamber 12 via the height adjustment assembly 23. Mounting holes are provided at the top and bottom of the support frame 21 for connection to the height adjustment assembly 23.

[0030] The multi-stage filter 22 includes a metal woven mesh layer 221 and a fiber filter layer 222 tightly adhered to its bottom surface. The metal woven mesh layer 221 is used to intercept larger floating objects, while the fiber filter layer 222 has a smaller pore size and is used to intercept finer impurities. The multi-stage filter 22 is installed at an angle within the supporting outer frame 21, with its tilt direction forming an acute angle with the water flow direction to facilitate the interception and aggregation of floating objects.

[0031] The height adjustment assembly 23 includes a slide rail 231 vertically fixed to the inner wall of the filter chamber 12, a slider 232 fixed to the supporting outer frame 21 and sliding in cooperation with the slide rail 231, and a control component 24. The slide rail 231 is fixed to the inner wall of the filter chamber 12 by bolts, and the slider 232 is fixed to both sides of the supporting outer frame 21 by bolts and slides in cooperation with the slide rail 231.

[0032] The control component 24 includes a plurality of positioning slots 241 spaced apart along the length of the slide rail 231, a slide groove 233 disposed within the slider 232, a positioning rod 242 slidably disposed in the slide groove 233, a spring 243 forcing the positioning rod 242 into the positioning slot 241 to lock it, and a control rope 245 connecting the positioning rod 242 and extending to the outside of the filter tank body 1 for manual unlocking. The positioning slots 241 are evenly distributed on the slide rail 231. The positioning rod 242 is embedded in the positioning slot 241 by the elastic force of the spring 243. The control rope 245 is led out from the top of the filter tank body 1, making it easy for the operator to manually unlock it. When the control rope 245 is pulled, the positioning rod 242 moves away from the positioning slot 241 until it exits.

[0033] The disassembly / assembly structure 25 includes a placement cavity 251 on the supporting outer frame 21 for accommodating a multi-stage filter screen 22, an inlet / outlet channel 256 communicating with the outside of the placement cavity 251, a cover plate 252 hinged to the opening of the inlet / outlet channel 256, a fixing clip 253 hinged to the cover plate 252 and engaged with the edge of the supporting outer frame 21, and a torsion spring 254 forcing the fixing clip 253 to engage with the supporting outer frame 21. The torsion spring 254 is fitted onto the pivot of the fixing clip 253, with one end of the torsion spring 254 fixedly connected to the fixing clip 253 and the other end fixedly connected to the cover plate 251. The placement cavity 251 is located on the front of the supporting outer frame 21, the inlet / outlet channel 256 is located on the top of the supporting outer frame 21, and the cover plate 252 is connected to the opening of the inlet / outlet channel 256 via a hinge. Two fixing clips 253 are provided, located on both sides of the cover plate 252 respectively, and the two fixing clips 253 are connected by a linkage rod 26. The linkage rod 26 ensures that the two fixing clips 253 can operate synchronously, improving the efficiency of disassembly and assembly.

[0034] Overall workflow: Water enters from one end of the filter tank body 1 and passes through each filter chamber 12 sequentially. When the water flows through the weir channel 13, floating debris is intercepted by the floating debris blocking mechanism 2. The inclined design of the multi-stage filter screen 22 causes floating debris to accumulate along the filter screen surface, facilitating cleaning. When the filter screen needs to be replaced, the operator releases the lock via the control rope 245, adjusts the height of the supporting frame 21, opens the cover plate 252, removes the multi-stage filter screen 22, installs a new multi-stage filter screen 22, and quickly secures it using the fixing clips 253. The entire process is simple to operate and highly efficient in maintenance.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A filtration device comprising a filter tank body (1), wherein at least two baffles (11) are provided within the filter tank body (1), and a filter chamber (12) is formed between adjacent baffles (11), wherein a weir channel (13) for water flow to overturn is provided at the top of the baffles (11), characterized in that: Each of the overturning channels (13) is provided with a floating object blocking mechanism (2) on the water inlet side. The floating object blocking mechanism (2) includes a supporting outer frame (21), a multi-stage filter screen (22), a height adjustment component (23), and a disassembly and assembly structure (25). The supporting outer frame (21) is installed in the filter chamber (12) in a height-adjustable manner through the height adjustment component (23). The multi-stage filter screen (22) is configured to intercept floating objects in the water flow. The disassembly and assembly structure (25) is set between the supporting outer frame (21) and the multi-stage filter screen (22) to realize the quick replacement of the multi-stage filter screen (22).

2. The filtration device according to claim 1, characterized in that: The tilt direction of the multi-stage filter (22) forms an acute angle with the direction of water flow.

3. The filtration device according to claim 1, characterized in that: The multi-stage filter (22) includes a metal woven mesh layer (221) and a fiber filter layer (222) tightly attached to its bottom surface, wherein the pore size of the fiber filter layer (222) is smaller than that of the metal woven mesh layer (221).

4. A filtration device according to claim 1, characterized in that: The height adjustment assembly (23) includes a slide rail (231) vertically fixed to the inner wall of the filter chamber (12), a slider (232) fixed to the support frame (21) and sliding in conjunction with the slide rail (231), and a control component (24) for locking the slider (232) at any height position of the slide rail (231).

5. A filtration device according to claim 4, characterized in that: The control component (24) includes a plurality of positioning grooves (241) spaced apart along the length of the slide rail (231), a slide groove (233) provided in the slider (232), a positioning rod (242) slidably provided in the slide groove (233), a spring (243) forcing the positioning rod (242) to be embedded in the positioning groove (241) to achieve locking, and a control rope (245) connecting the positioning rod (242) and extending to the outside of the filter body (1) for manually releasing the lock.

6. A filtration device according to claim 1, characterized in that: The disassembly and assembly structure (25) includes a placement cavity (251) on the supporting outer frame (21) for accommodating a multi-stage filter screen (22), an inlet and outlet channel (256) communicating with the outside of the placement cavity (251), a cover plate (252) hinged to the opening of the inlet and outlet channel (256), a fixing clip (253) hinged to the cover plate (252) and engaged with the supporting outer frame (21), and a torsion spring (254) forcing the fixing clip (253) to engage with the supporting outer frame (21).

7. A filtration device according to claim 6, characterized in that: Two fixing clips (253) are provided, and a linkage rod (26) is connected between the two fixing clips (253).

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