Filtering device capable of automatically changing membrane
The automatic membrane replacement filter device uses a servo motor and telescopic cylinder to drive the filter membrane to rewind, which solves the problem of complex and time-consuming filter membrane replacement in traditional methods, and realizes rapid filter membrane replacement and efficient operation of the filter device.
Patent Information
- Application Number
- CN202520475904.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The traditional filter membrane replacement process is complex and time-consuming, which affects the efficiency of the filtration device.
An automatic membrane replacement filter device is adopted, which uses a servo motor and a telescopic cylinder to drive the winding and replacement of the filter membrane. The servo motor drives the drive shaft to wind up the filter, and the telescopic cylinder lifts the filter to realize the automatic replacement of the filter membrane.
It enables rapid replacement of the filter membrane, improving the efficiency of the filtration device.
Smart Images

Figure CN223915111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental protection construction, and in particular to an automatic membrane replacement filter device. Background Technology
[0002] With increasingly stringent requirements for liquid quality in industries such as manufacturing, pharmaceuticals, food, and water treatment, membrane filtration technology has gradually become one of the key separation and purification technologies. By feeding used water into a filter, the membrane separates organic matter, heavy metals, and microorganisms from the water, thereby improving water quality safety and reducing environmental impact.
[0003] Traditional filters typically have the filter membrane installed inside the filter. After prolonged use, the filter is disassembled and the membrane is removed for replacement to ensure the filtration effect. However, disassembling the filter during membrane replacement is often complicated, time-consuming, and extremely inconvenient, and it also affects the efficiency of the device. Therefore, an automatic membrane replacement filtration device is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an automatic membrane replacement filtration device, which aims to improve the problem of inconvenient membrane replacement in the prior art, which affects the efficiency of the filtration device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An automatic membrane replacement filter device includes a base, a back plate fixedly connected to the top of the base, a top plate fixedly connected to the top of the back plate, a telescopic cylinder fixedly connected to the bottom of the top plate, a filter fixedly connected to the output end of the telescopic cylinder, water supply pipes fixedly connected to both sides of the filter, a drain fixedly connected to the middle of the base, a driven shaft rotatably connected to the front side of the back plate, and a drive assembly installed on the rear side of the base.
[0007] The drive assembly includes a servo motor, which is fixedly connected to the rear side of the back plate. A coupling is fixedly connected to the output end of the servo motor, and a drive shaft is fixedly connected to the other end of the coupling. A roller is mounted on the outer periphery of the driven shaft and the drive shaft. A filter membrane is sleeved on the outer periphery of one of the rollers, and the other end of the filter membrane is fixedly connected to the middle of the other roller.
[0008] As a further description of the above technical solution:
[0009] The front side of the back plate is rotatably connected to a guide shaft;
[0010] As a further description of the above technical solution:
[0011] Both the driven shaft and the driving shaft are equipped with baffles on their outer peripheries.
[0012] As a further description of the above technical solution:
[0013] The drainer has a slot in the middle, and the bottom of the filter is fixedly connected to a protrusion, which is slidably connected to the middle of the slot.
[0014] As a further description of the above technical solution:
[0015] A groove is provided in the middle of the back plate, and the water pipe connection port is opposite to the groove;
[0016] As a further description of the above technical solution:
[0017] The guide shaft is located below the driven shaft and the driving shaft;
[0018] As a further description of the above technical solution:
[0019] The filter membrane passes between the filter and the drain.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, after the filter membrane has been used for a long time, the telescopic cylinder is driven to lift the filter, and then the servo motor is driven to drive the drive shaft to rewind it, so as to pull the used filter membrane from the bottom of the filter and move the new filter membrane to the bottom of the filter. Then the telescopic cylinder is driven to press the filter membrane between the filter and the drain, so as to quickly complete the replacement of the filter membrane and improve work efficiency. Attached Figure Description
[0022] Figure 1 This is a three-dimensional schematic diagram of an automatic membrane replacement filtration device proposed in this utility model;
[0023] Figure 2 This is a schematic diagram of the structure of the telescopic cylinder of an automatic membrane changing filter device proposed in this utility model;
[0024] Figure 3 This is a schematic diagram of the filter membrane structure of an automatic membrane changing filtration device proposed in this utility model.
[0025] Legend:
[0026] 1. Base; 2. Back plate; 3. Top plate; 4. Servo motor; 5. Telescopic cylinder; 6. Filter; 7. Drain; 8. Drive shaft; 9. Baffle; 10. Coupling; 11. Driven shaft; 12. Guide shaft; 13. Slot; 14. Filter membrane; 15. Water pipe; 16. Protrusion; 17. Slide groove; 18. Reel. Detailed Implementation
[0027] 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.
[0028] Reference Figures 1-3 This utility model provides an embodiment of an automatic membrane replacement filter device, comprising a base 1, a back plate 2 fixedly connected to the top of the base 1, a top plate 3 fixedly connected to the top of the back plate 2, a telescopic cylinder 5 fixedly connected to the bottom of the top plate 3, a filter 6 fixedly connected to the output end of the telescopic cylinder 5, water supply pipes 15 fixedly connected to both sides of the filter 6, a drain 7 fixedly connected to the middle of the base 1, a driven shaft 11 rotatably connected to the front side of the back plate 2, and a drive assembly including a servo motor 4 installed on the rear side of the base 1. The servo motor 4 is fixedly connected to the rear side of the back plate 2. The output end of the servo motor 4 is fixedly connected to the coupling 10. The other end of the coupling 10 is fixedly connected to the drive shaft 8. The driven shaft 11 and the drive shaft 8 are mounted with a roller 18. A filter membrane 14 is sleeved on the outer circumference of one of the rollers 18. The other end of the filter membrane 14 is fixedly connected to the middle of the other roller 18. The front side of the back plate 2 is rotatably connected to the guide shaft 12. The guide shaft 12 is located below the driven shaft 11 and the drive shaft 8. The filter membrane 14 passes through the filter 6 and the drain 7. First, the roller 18 with the filter membrane 14 mounted on it is installed on the outer periphery of the driven shaft 11. After the filter membrane 14 is passed through the bottom of the guide shaft 12, the empty roller 18 is installed on the outer periphery of the drive shaft 8. The telescopic cylinder 5 is driven to move the filter 6, pressing the filter membrane 14 between the two guide shafts 12 between the filter 6 and the drain 7. When the filter device needs to be replaced after long-term use, the telescopic cylinder 5 is driven to lift the filter 6, so that the filter membrane 14 is no longer pressed. The servo motor 4 is then driven to move the drive shaft 8 to rewind the filter membrane 14, so that the used filter membrane 14 can be pulled out from under the filter 6 and a new filter membrane 14 can be moved to the bottom of the filter 6. Repeating this operation can quickly replace the filter membrane 14 and improve the efficiency of the filter device.
[0029] Reference Figure 1 and Figure 2Both the driven shaft 11 and the driving shaft 8 are equipped with baffles 9 on their outer peripheries. The drain 7 has a groove 13 in the middle. The bottom of the filter 6 is fixedly connected to a protrusion 16, which is slidably connected to the middle of the groove 13. The back plate 2 has a slide groove 17 in the middle, and the water supply pipe 15 is connected to the slide groove 17. The baffles 9 can prevent the filter membrane 14 from deviating during rotation. When the filter 6 presses down on the filter membrane 14, it will drive the protrusion 16 to press the filter membrane 14 into the bottom of the groove 13. At the same time, a sealing gasket can be installed at the bottom of the groove 13. Under the pressure of the protrusion 16, the filter membrane 14 can fit tightly against the sealing gasket to improve the sealing performance and prevent leakage during the filtration process. Before use, the water inlet pipe is passed through the slide groove 17 and connected to the water supply pipe 15 so that when the telescopic cylinder 5 moves the filter 6 up and down, the water inlet pipe can slide in the middle of the slide groove 17 to ensure that the water inlet pipe is not obstructed when the filter 6 moves.
[0030] Working principle: When the filter membrane 14 needs to be replaced after a long period of use, the telescopic cylinder 5 is driven to lift the filter 6, so that the filter membrane 14 is no longer pressed. The servo motor 4 drives the drive shaft 8 to rewind, so that the used filter membrane 14 can be pulled away from under the filter 6. The new filter membrane 14 is moved to the bottom of the filter 6, and then the telescopic cylinder 5 is driven to press the filter membrane 14 between the filter 6 and the drain 7. This allows for quick replacement of the filter membrane 14 and improves the efficiency of the filter.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic membrane changing filtration device comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a back plate (2), the top of the back plate (2) is fixedly connected with a top plate (3), the bottom of the top plate (3) is fixedly connected with a telescopic air cylinder (5), the output end of the telescopic air cylinder (5) is fixedly connected with a filter (6), the left and right sides of the filter (6) are fixedly connected with water pipes (15), the middle of the base (1) is fixedly connected with a water drainer (7), the front side of the back plate (2) is rotatably connected with a driven shaft (11), and the rear side of the base (1) is provided with a driving assembly; The driving assembly comprises a servo motor (4), the servo motor (4) is fixedly connected to the rear side of the back plate (2), the output end of the servo motor (4) is fixedly connected with a shaft coupling (10), the other end of the shaft coupling (10) is fixedly connected with a driving shaft (8), the outer periphery of the driven shaft (11) and the driving shaft (8) is provided with a reel (18), the outer periphery of one of the reels (18) is sleeved with a filter membrane (14), and the other end of the filter membrane (14) is fixedly connected to the middle of the other reel (18).
2. The automatic membrane changing filter device according to claim 1, characterized in that: The front side of the back plate (2) is rotatably connected with a guide shaft (12).
3. The automatic membrane changing filter apparatus according to claim 1, wherein: The outer periphery of the driven shaft (11) and the driving shaft (8) is provided with a baffle (9).
4. The automatic membrane changing filter apparatus according to claim 1, wherein: The middle of the water drainer (7) is provided with a clamping groove (13), the bottom of the filter (6) is fixedly connected with a protruding block (16), and the protruding block (16) is slidably connected to the middle of the clamping groove (13).
5. The automatic membrane changing filter apparatus according to claim 1, wherein: The middle of the back plate (2) is provided with a sliding groove (17), and the water pipe (15) connecting port is opposite to the sliding groove (17).
6. The automatic membrane changing filter apparatus according to claim 2, wherein: The guide shaft (12) is located below the driven shaft (11) and the driving shaft (8).
7. The automatic membrane changing filter apparatus according to claim 1, wherein: The filter membrane (14) passes between the filter (6) and the water drainer (7).