Multi-stage purification filter device for frying oil recycling
The filter box is tilted by the support frame and telescopic rod to accelerate the flow of oil. Combined with the limit plate and filter cover to collect oil residue, the problem of filter residue clogging in frying oil filtration device is solved, and the filtration efficiency and cleaning convenience are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XIANGMANYUAN GRAIN & OIL CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-02
AI Technical Summary
Existing frying oil filtration devices experience a decrease in filtration efficiency when the mesh density of multi-stage filter plates increases, and filter residue blockage makes it difficult for oil to flow, thus affecting the filtration effect.
The system uses a combination of components such as a support frame, discharge mechanism, rotating seat, rotating frame, and telescopic rod. It accelerates oil flow by tilting the filter box and collects oil residue through a limit plate and filter cover. The filter screen structure is designed for quick disassembly and assembly for easy cleaning.
It improves the filtration efficiency of frying oil, avoids filter clogging, achieves smooth oil flow and quick cleaning, and extends the number of times frying oil can be recycled.
Smart Images

Figure CN224308000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frying oil purification technology, and in particular to a multi-stage purification and filtration device for recycling frying oil. Background Technology
[0002] When frying food, a large amount of frying oil is needed. In order to reduce costs, this frying oil is reused three to four times. In order to achieve the maximum number of uses and not affect the taste of the finished product, the frying oil needs to be purified and filtered to prevent impurities in the oil caused by previous frying from affecting its reuse.
[0003] Chinese patent document CN218073322U discloses a utility model belonging to the field of frying oil filtration technology, which discloses a combined edible frying oil filter, including a filter box. The bottom of the filter box is equipped with casters and wheels. An oil outlet pipe is connected through the lower right side of the filter box, and a one-way valve is installed on the oil outlet pipe. A hydraulic cylinder is connected through the middle left side of the filter box. A pusher plate is placed on the left side inside the filter box and is connected to the hydraulic cylinder. A left filter screen, a middle filter screen, and a right filter screen are sequentially inserted inside the filter box to the right of the pusher plate. Positioning plates are connected to the top front and back of the left, middle, and right filter screens, which facilitates better separation and filtration of oil and impurities in the frying oil. Impurities can be squeezed out to extract oil, and the squeezed impurities are easy to clean, saving manpower.
[0004] The existing technology has the following problems:
[0005] The device uses multi-stage filter plates for filtration. As the mesh density of the filter plates increases, the filtration efficiency decreases. When filter residue accumulates on the filter screen, some oil will be blocked by the filter residue and will not be able to flow to the next stage of filter plates. Utility Model Content
[0006] This invention provides a multi-stage purification and filtration device for recycling frying oil, in order to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0008] A multi-stage purification and filtration device for recycling frying oil includes a support frame, a discharge mechanism fixedly connected to the upper side of the support frame, a filter box fixedly connected to the upper side of the discharge mechanism, a separation mechanism fixedly connected to the inner side of the filter box, a mechanism tube fixedly connected to the middle left side of the filter box, and a control valve movably installed at the bottom of the mechanism tube.
[0009] The discharge mechanism includes a rotating seat. The upper side of the rotating seat is fixedly connected to the lower side of the filter box near the left and right sides. Two rotating seats are symmetrically distributed on the left and right sides. The lower side of each of the two rotating seats is rotatably connected to a rotating frame. The lower side of the rotating frame on the left side is fixedly connected to the upper side of the support frame near the left side. The lower side of the rotating frame on the right side is rotatably connected to two first telescopic rods distributed front and back. The lower side of the first telescopic rods is rotatably connected to the right side of the inner side of the support frame near the bottom.
[0010] Preferably, the separation mechanism includes a second telescopic rod, a limiting plate is fixedly connected to the lower side of the second telescopic rod, a filter cover is fixedly connected to the bottom of the limiting plate by a round rod, the outer sides of the limiting plate and the filter cover are movably sleeved on the inner side of the mechanism tube, and the upper surface of the filter cover is slightly lower than the bottom of the inner lower surface of the filter box.
[0011] Preferably, a number of rectangularly distributed sleeves are fixedly connected to the front and rear sides of the inner side of the filter box, and a number of rectangularly distributed inserts are fixedly connected to the lower inner surface of the filter box. Filter screens are movably sleeved on the outer side of the inserts and the inner side of the sleeves, and a number of filter screens are distributed laterally.
[0012] Preferably, a rotating plate is rotatably connected to the upper side of several of the filter screens near the front and rear sides and to the upper middle part of the second telescopic rod. A pressure plate is fixedly connected to the upper front and rear sides of the mechanism tube and to the upper side of the filter box near the front and rear sides, and the rotating plate is located below the pressure plate.
[0013] Preferably, a limiting groove is formed in the middle of the lower surface of the two leftmost front and rear pressure plates.
[0014] Preferably, rubber strips are fixedly connected to the outer sides of several of the filter screens.
[0015] Preferably, the lower inner surface of the filter box is convex on both the front and back sides and concave in the middle.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. This utility model provides a multi-stage purification and filtration device for recycling frying oil. Based on the cooperation of the support frame, discharge mechanism, rotating seat, rotating frame, first telescopic rod, filter box, separation mechanism, second telescopic rod, limiting plate and filter cover, the telescopic rod drives the filter box to tilt to the lower left, so that the oil at the end of the filtration in the filter box flows to the left faster, avoiding the impurities accumulated at the bottom from affecting the filtration effect.
[0018] 2. This utility model provides a multi-stage purification and filtration device for recycling frying oil. Based on the cooperation of the filter box, separation mechanism, second telescopic rod, limiting plate, filter cover, clamp, insert, filter screen, rotating plate, pressure plate and limiting groove, the filter screen and the second telescopic rod can be quickly disassembled and assembled through the cooperation of the pressure plate and the rotating plate. This allows the residue inside the filter box to be directly swept away by a brush towards the mechanism tube, quickly collecting the oil residue and avoiding the problem of the residue being difficult to clean due to the angle at the bottom edge of the filter box. Attached Figure Description
[0019] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;
[0021] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the filter box part of this utility model;
[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram of part A in the middle;
[0023] Figure 5 This is a three-dimensional structural diagram of the filter box part of this utility model.
[0024] In the diagram: 1. Support frame; 2. Discharge mechanism; 21. Rotating seat; 22. Rotating frame; 23. First telescopic rod; 3. Filter box; 4. Separation mechanism; 41. Second telescopic rod; 42. Limiting plate; 43. Filter cover; 44. Sleeve; 45. Insert; 46. Filter screen; 47. Rotating plate; 48. Pressure plate; 49. Limiting groove; 5. Mechanism tube; 6. Control valve. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] like Figures 1-5 As shown, a multi-stage purification and filtration device for recycling frying oil includes a support frame 1, a discharge mechanism 2 fixedly connected to the upper side of the support frame 1, a filter box 3 fixedly connected to the upper side of the discharge mechanism 2, a separation mechanism 4 fixedly connected to the inner side of the filter box 3, a mechanism tube 5 fixedly connected to the middle left side of the filter box 3, and a control valve 6 movably installed at the bottom of the mechanism tube 5.
[0027] The discharge mechanism 2 includes a rotating seat 21. The upper side of the rotating seat 21 is fixedly connected to the lower side of the filter box 3 near the left and right sides. Two rotating seats 21 are symmetrically distributed on the left and right sides. The lower side of each rotating seat 21 is rotatably connected to a rotating frame 22. The lower side of the rotating frame 22 on the left side is fixedly connected to the upper side of the support frame 1 near the left side. The lower side of the rotating frame 22 on the right side is rotatably connected to two first telescopic rods 23 distributed front and back. The lower side of the first telescopic rods 23 is rotatably connected to the right side of the inner side of the support frame 1 near the bottom.
[0028] It should be noted that when the control valve 6 is opened, it is used to drain oil from the mechanism pipe 5. The telescopic rod 23 is a hydraulic rod used to move the right side of the filter box 3 up and down, thereby causing the filter box 3 to tilt to the lower left. In this way, the filtration effect of the filter screen 46 can be accelerated by gravity, and the filtered oil will automatically flow to the mechanism pipe 5.
[0029] like Figure 3 , Figure 4 As shown, the separation mechanism 4 includes a second telescopic rod 41. A limiting plate 42 is fixedly connected to the lower side of the second telescopic rod 41. A filter cover 43 is fixedly connected to the bottom of the limiting plate 42 by a round rod. The outer sides of the limiting plate 42 and the filter cover 43 are movably sleeved on the inner side of the mechanism tube 5, and the upper surface of the filter cover 43 is slightly lower than the bottom of the inner lower surface of the filter box 3.
[0030] It should be noted that the limiting plate 42 drives the limiting plate 42 to move up and down. The limiting plate 42 is used to drive the filter cover 43 to move up and down. The filter cover 43 is used to collect the oil residue inside the filter box 3, so as to prevent the oil residue from falling directly into the mechanism tube 5 and being difficult to clean. When draining oil, the filter cover 43 moves up. When draining residue, the filter cover 43 moves down.
[0031] like Figures 3-5 As shown, several rectangularly distributed sleeves 44 are fixedly connected to the front and rear sides of the inner side of the filter box 3, and several rectangularly distributed inserts 45 are fixedly connected to the lower inner surface of the filter box 3. Filter screens 46 are movably sleeved on the outer side of the inserts 45 and the inner side of the sleeves 44, and several filter screens 46 are distributed horizontally.
[0032] It should be noted that the filter screen 46 is used to filter oil residue, and the insert 45 and the clamp 44 are used to fix the filter screen 46. The filter screen 46 closer to the left has a larger mesh size.
[0033] like Figure 4 , Figure 5As shown, a rotating plate 47 is rotatably connected to the upper side of several filter screens 46 near the front and rear sides and the upper middle part of the second telescopic rod 41. A pressure plate 48 is fixedly connected to the upper front and rear sides of the mechanism tube 5 and the upper side of the filter box 3 near the front and rear sides, and the rotating plate 47 is located below the pressure plate 48.
[0034] It should be noted that there are two rotating plates 47 distributed in the front and back on the filter screen 46. Torsion springs are provided between the filter screen 46 and the rotating plate 47, as well as between the second telescopic rod 41 and the rotating plate 47, to stabilize the state of the rotating plate 47. The pressure plate 48 is used to fix the rotating plate 47.
[0035] like Figure 4 As shown, limit grooves 49 are provided in the middle of the lower surface of the two pressure plates 48 located on the far left.
[0036] It should be noted that after the filter cover 43 is installed in place, the pressure plate 48 on the second telescopic rod 41 is movably fitted into the inner side of the limiting groove 49 to prevent the second telescopic rod 41 from moving freely.
[0037] like Figure 3 As shown, rubber strips are fixedly connected to the outer sides of several filter screens 46.
[0038] It should be noted that the rubber strip is made of food-grade silicone rubber, which is oil-resistant. It is used to stabilize the position of the filter screen 46 within the insert 45 and to prevent gaps between components from causing the filter screen 46 to move.
[0039] like Figure 5 As shown, the lower inner surface of the filter box 3 is convex on both the front and back sides and concave in the middle.
[0040] It should be noted that the shape of the bottom inside the filter box 3 causes the oil inside the filter box 3 to flow automatically towards the middle of the bottom inside the filter box 3, which has the effect of gathering oil residue and oil.
[0041] The working principle of this utility model is as follows: First, the telescopic rod 23 is a hydraulic rod used to move the right side of the filter box 3 up and down, thereby causing the filter box 3 to tilt to the lower left. This method utilizes gravity to accelerate the filtration effect of the filter screen 46. The filtered oil automatically flows towards the mechanism tube 5. The shape of the bottom inner side of the filter box 3 causes the oil inside the filter box 3 to automatically flow towards the middle of the bottom inner side, which has a gathering effect on oil residue and oil. The telescopic rod 23 drives the filter box 3 to tilt to the lower left, causing the oil at the end of the filtration process to flow faster to the left, preventing impurities accumulated at the bottom from affecting the filtration effect. Finally, the limiting plate 42 moves up and down, and the limiting plate 42 is used for... The filter cover 43 moves up and down, and is used to collect the oil residue inside the filter box 3, preventing the oil residue from falling directly into the mechanism tube 5 and being difficult to clean. There are two rotating plates 47 on the filter screen 46, one in front and one behind. Torsion springs are provided between the filter screen 46 and the rotating plate 47, and between the second telescopic rod 41 and the rotating plate 47, to stabilize the state of the rotating plate 47. The pressure plate 48 is used to fix the rotating plate 47. Through the cooperation of the pressure plate 48 and the rotating plate 47, the filter screen 46 and the second telescopic rod 41 can be quickly disassembled and assembled, so that the residue inside the filter box 3 can be directly swept towards the mechanism tube 5 by a brush, quickly collecting the oil residue and avoiding the problem of the residue being difficult to clean due to the angle at the bottom edge of the filter box 3.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A multi-stage purification and filtration device for recycling frying oil, comprising a support frame (1), characterized in that: The upper side of the support frame (1) is fixedly connected to a discharge mechanism (2), the upper side of the discharge mechanism (2) is fixedly connected to a filter box (3), the inner side of the filter box (3) is fixedly connected to a separation mechanism (4), the middle left side of the filter box (3) is fixedly connected to a mechanism tube (5), and a control valve (6) is movably installed at the bottom of the mechanism tube (5). The discharge mechanism (2) includes a rotating seat (21). The upper side of the rotating seat (21) is fixedly connected to the lower side of the filter box (3) near the left and right sides. Two rotating seats (21) are symmetrically distributed on the left and right sides. The lower side of each of the two rotating seats (21) is rotatably connected to a rotating frame (22). The lower side of the rotating frame (22) on the left side is fixedly connected to the upper side of the support frame (1) near the left side. The lower side of the rotating frame (22) on the right side is rotatably connected to two first telescopic rods (23) distributed in front and behind. The lower side of the first telescopic rod (23) is rotatably connected to the right side of the inner side of the support frame (1) near the bottom.
2. The multi-stage purification and filtration device for recycling frying oil according to claim 1, characterized in that: The separation mechanism (4) includes a second telescopic rod (41), and a limiting plate (42) is fixedly connected to the lower side of the second telescopic rod (41). A filter cover (43) is fixedly connected to the bottom of the limiting plate (42) by a round rod. The outer sides of the limiting plate (42) and the filter cover (43) are movably sleeved on the inner side of the mechanism tube (5), and the upper surface of the filter cover (43) is slightly lower than the bottom of the inner lower surface of the filter box (3).
3. The multi-stage purification and filtration device for recycling frying oil according to claim 2, characterized in that: The filter box (3) has several rectangular sleeves (44) fixedly connected to its inner front and rear sides. The filter box (3) has several rectangular inserts (45) fixedly connected to its inner lower surface. The inserts (45) and the sleeves (44) are movably fitted with filter screens (46), and several filter screens (46) are distributed laterally.
4. The multi-stage purification and filtration device for recycling frying oil according to claim 3, characterized in that: A rotating plate (47) is rotatably connected to the upper side of several of the filter screens (46) near the front and rear sides and the upper middle part of the second telescopic rod (41). A pressure plate (48) is fixedly connected to the upper side of the mechanism tube (5) near the front and rear sides and the upper side of the filter box (3) near the front and rear sides, and the rotating plate (47) is located below the pressure plate (48).
5. A multi-stage purification and filtration device for recycling frying oil according to claim 4, characterized in that: Limiting grooves (49) are provided in the middle of the lower surface of the two pressure plates (48) located on the far left.
6. A multi-stage purification and filtration device for recycling frying oil according to claim 3, characterized in that: Rubber strips are fixedly connected to the outer side of several of the filter screens (46).
7. A multi-stage purification and filtration device for recycling frying oil according to claim 1, characterized in that: The inner lower surface of the filter box (3) is convex on both the front and back sides and concave in the middle.