Recovery and storage device for kitchen waste oil

By combining scrapers and pressure plates, the problem of incomplete separation of waste oil from waste residue in kitchen waste oil recycling and storage devices is solved, achieving efficient recycling of waste oil and stable operation of the filter screen, thus protecting the health of the ecosystem.

CN223887510UActive Publication Date: 2026-02-10SHANGHAI WEIRUI ENVIRONMENTAL PROTECTION ENG CO LTD
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Patent Information

Application Number
CN202520114227.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-02-10
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing kitchen waste oil recycling and storage devices lack the function of effectively separating waste oil from waste residue, resulting in a large amount of waste oil being discharged into the environment, affecting soil microorganisms and plant growth, and thus affecting the ecological balance.

Method used

The filter screen is scraped by a scraper while the waste residue is pressed by a pressure plate to separate the waste oil from the residue. The design of the pressure relief port and the discharge port ensures the effective recovery of waste oil and the stable operation of the filter screen.

Benefits of technology

It achieves effective separation of waste oil from waste residue, improves the recovery rate, avoids filter clogging, ensures the stable operation of recycling work, and protects the health of the ecosystem.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kitchen waste oil recovery and storage device which comprises a storage tank, the top of the storage tank is fixedly connected with a treatment box, the top of the storage tank is provided with an opening, the inner wall of the bottom end of the treatment box is fixedly connected with a filter screen, the top of the storage tank is fixedly connected with a supporting frame, and the top of the supporting frame is fixedly connected with a motor. The output end of the motor is fixedly connected with a driving lead screw, the driving lead screw is sleeved with a lead screw nut, the lead screw nut is matched with the driving lead screw, the outer wall of the lead screw nut is fixedly connected with a fixing plate, the bottoms of the two ends of the fixing plate are fixedly connected with fixing rods, and the bottoms of the two fixing rods are fixedly connected with the same pressing plate. The bottom of the driving lead screw is fixedly connected with a driving rod, and the bottom of the driving rod is fixedly connected with a scraper. Waste oil contained in waste residues can be discharged, more waste oil can be recycled, the recycling rate is increased, the filter screen can be prevented from being blocked, and it is guaranteed that recycling work can be conducted stably and normally.
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Description

Technical Field

[0001] This utility model relates to the field of kitchen waste oil treatment technology, and in particular to a recycling and storage device for kitchen waste oil. Background Technology

[0002] Waste cooking oil refers to the grease waste generated during cooking and food processing. It mainly refers to edible oil used in frying, stir-frying, baking, etc. After repeated cooking, it becomes greasy and contains food residue. It also includes waste oil generated when processing ingredients (such as meat, fish, and vegetables). Directly dumping waste cooking oil will pollute water sources and soil, causing ecological damage. If waste oil is discharged into sewers, it can easily cause pipe blockages, leading to floods or sanitation problems. Therefore, it is necessary to collect and store waste cooking oil for centralized treatment. However, most existing waste cooking oil collection and storage devices still have problems that need to be solved.

[0003] Most existing waste cooking oil recycling and storage devices use filters, which lack the function of separating the waste oil contained in the waste residue. The waste residue also contains a lot of waste oil. Discharging waste residue containing waste oil into the environment may have toxic effects on microorganisms and plant growth in the soil, thereby affecting the food chain and ecological balance, and impacting the health of the ecosystem. There is an urgent need to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a recycling and storage device for kitchen waste oil.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waste cooking oil recycling and storage device includes a storage tank, a processing box fixedly connected to the top of the storage tank, an opening at the top of the storage tank, a filter screen fixedly connected to the inner wall of the bottom end of the processing box, a support frame fixedly connected to the top of the storage tank, a motor fixedly connected to the top of the support frame, a drive screw fixedly connected to the output end of the motor, a screw nut fitted on the drive screw, the screw nut being compatible with the drive screw, a fixing plate fixedly connected to the outer wall of the screw nut, fixing rods fixedly connected to the bottom of both ends of the fixing plate, a common pressure plate fixedly connected to the bottom of both fixing rods, a drive rod fixedly connected to the bottom of the drive screw, and a scraper fixedly connected to the bottom of the drive rod. The scraper contacts the surface of the filter screen. This device utilizes a technique where the scraper scrapes the filter screen while the pressure plate presses down on the waste residue. Therefore, scraping the filter screen with a scraper can disperse the accumulated waste residue on the filter screen surface, preventing clogging. Pressing the waste residue with a pressure plate can discharge the waste oil contained in the waste residue. When the pressure plate rises, the scraper can rotate again to disperse the waste residue. This effectively solves the problem mentioned in the background technology that most existing kitchen waste oil recycling and storage devices generally use filter screens for filtration, lacking the function of separating the waste oil contained in the waste residue. The waste residue also contains a lot of waste oil. Discharging waste residue containing waste oil into the environment may have toxic effects on microorganisms and plant growth in the soil, thereby affecting the food chain and ecological balance, and affecting the health of the ecosystem. This technology can discharge the waste oil contained in the waste residue, allowing more waste oil to be recycled, improving the recycling rate, avoiding filter screen clogging, and ensuring that the recycling work can be carried out stably and normally.

[0007] Preferably, the top of both ends of the pressure plate is fixedly connected to a limiting rod, both limiting rods pass through the support frame, both limiting rods are fitted with limiting sleeves, the limiting rods are slidably connected to the limiting sleeves, and the limiting sleeves are fixedly connected to the inner wall of the support frame.

[0008] Preferably, the top of the support frame has two limiting holes, which are adapted to limiting rods, and the limiting rods are disposed in the limiting holes.

[0009] Preferably, the pressure plate has a circular hole, and a first sealing ring is disposed in the circular hole of the pressure plate. The first sealing ring is fixedly connected to the pressure plate, and the inner wall of the first sealing ring is in contact with the drive rod.

[0010] Preferably, a second sealing ring is fixedly connected to the outer wall of the pressure plate, and the bottom end of the second sealing ring is a bevel.

[0011] Preferably, the storage tank is provided with a pressure relief port at the top and a discharge port at the bottom, and both the pressure relief port and the discharge port are provided with valves.

[0012] Preferably, a base is fixedly connected to the bottom of the storage tank.

[0013] The beneficial effects of this utility model are as follows:

[0014] By employing a scraper to scrape the filter screen while a pressure plate presses down on the waste residue, the scraper disperses the accumulated waste residue on the filter screen surface, preventing clogging. The pressure plate then discharges the waste oil contained within the residue. The rising pressure plate further disperses the waste residue by rotating the scraper. This effectively solves the problem presented in the background section: most existing kitchen waste oil recycling and storage devices typically use filters, lacking the function of separating the waste oil contained in the residue. Furthermore, the waste residue often contains a significant amount of waste oil, and discharging it into the environment could have toxic effects on soil microorganisms and plant growth, thereby impacting the food chain, ecological balance, and the health of the ecosystem. This technology achieves the goal of discharging the waste oil contained in the residue, enabling more waste oil to be recycled, increasing the recycling rate, preventing filter clogging, and ensuring stable and normal operation of the recycling process. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a waste cooking oil recycling and storage device proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the processing box structure of a recycling and storage device for kitchen waste oil proposed in this utility model;

[0017] Figure 3 This is a partial structural diagram of a waste cooking oil recycling and storage device proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the pressure plate structure of a waste cooking oil recycling and storage device proposed in this utility model;

[0019] Figure 5 This is a cross-sectional structural diagram of the second sealing ring of a waste cooking oil recycling and storage device proposed in this utility model.

[0020] In the diagram: 1. Storage tank; 2. Processing box; 3. Filter screen; 4. Support frame; 5. Motor; 6. Drive screw; 7. Screw nut; 8. Fixing plate; 9. Fixing rod; 10. Pressure plate; 11. Drive rod; 12. Scraper; 13. Limiting rod; 14. Limiting sleeve; 15. Limiting hole; 16. First sealing ring; 17. Second sealing ring; 18. Pressure relief port; 19. Discharge port; 20. Base. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-5 A waste cooking oil recycling and storage device includes a storage tank 1, a processing box 2 fixedly connected to the top of the storage tank 1, an opening at the top of the storage tank 1, a filter screen 3 fixedly connected to the inner wall of the bottom end of the processing box 2, a support frame 4 fixedly connected to the top of the storage tank 1, a motor 5 fixedly connected to the top of the support frame 4, a drive screw 6 fixedly connected to the output end of the motor 5, a screw nut 7 fitted on the drive screw 6, the screw nut 7 being compatible with the drive screw 6, a fixing plate 8 fixedly connected to the outer wall of the screw nut 7, fixing rods 9 fixedly connected to the bottom of both ends of the fixing plate 8, a pressure plate 10 fixedly connected to the bottom of both fixing rods 9, a drive rod 11 fixedly connected to the bottom of the drive screw 6, a scraper 12 fixedly connected to the bottom of the drive rod 11, the scraper 12 contacting the surface of the filter screen 3, and the scraper scrapes the filter screen while the pressure plate presses the waste residue. This technical approach utilizes a scraper to scrape the filter screen, dispersing accumulated waste residue and preventing clogging. A pressure plate presses down on the waste residue, expelling the waste oil within it. As the pressure plate rises, the scraper rotates again, further dispersing the waste residue. This effectively addresses the problem presented in the background: most existing kitchen waste oil recycling and storage devices rely on filters, lacking the ability to separate the waste oil from the residue. Furthermore, the waste residue often contains significant amounts of waste oil, and releasing it into the environment could have toxic effects on soil microorganisms and plant growth, impacting the food chain, ecological balance, and overall ecosystem health. This new approach allows for the discharge of waste oil from the residue, enabling greater waste oil recovery, increasing the recovery rate, preventing filter clogging, and ensuring stable and normal operation of the recycling process.

[0023] In this utility model, the top of both ends of the pressure plate 10 are fixedly connected to limit rods 13. Both limit rods 13 pass through the support frame 4. Both limit rods 13 are fitted with limit sleeves 14. The limit rods 13 are slidably connected to the limit sleeves 14. When the pressure plate 10 moves, it will drive the limit rods 13 to move along the limit sleeves 14 to ensure the stability of the pressure plate 10 when it moves. The limit sleeves 14 are fixedly connected to the inner wall of the support frame 4.

[0024] In this utility model, the top of the support frame 4 has two limiting holes 15, which are adapted to the limiting rod 13, and the limiting rod 13 is set in the limiting hole 15.

[0025] In this utility model, a circular hole is provided on the pressure plate 10, and a first sealing ring 16 is provided in the circular hole on the pressure plate 10. The first sealing ring 16 is fixedly connected to the pressure plate 10, and the inner wall of the first sealing ring 16 is in contact with the drive rod 11.

[0026] In this utility model, a second sealing ring 17 is fixedly connected to the outer wall of the pressure plate 10. The bottom end of the second sealing ring 17 is a slope. When the pressure plate 10 is lowered, the second sealing ring 17 will also be lowered. The slope of the second sealing ring 17 will first contact the processing box 2, so that the second sealing ring 17 can move smoothly to the inner wall of the processing box 2 and fit tightly against the inner wall of the processing box 2.

[0027] In this utility model, the top of the storage tank 1 is provided with a pressure relief port 18. When the kitchen waste is squeezed to extract oil, the pressure inside the storage tank 1 is discharged through the pressure relief port 18. The bottom of the storage tank 1 is provided with a discharge port 19. Both the pressure relief port 18 and the discharge port 19 are provided with valves. The pressure relief and discharge are controlled by the valves on the pressure relief port 18 and the discharge port 19.

[0028] In this utility model, a base 20 is fixedly connected to the bottom of the storage tank 1.

[0029] Working Principle: When using this device, the pressure plate 10 is raised so that it is not inside the processing tank 2. The collected kitchen waste is placed into the processing tank 2 and filtered through the filter screen 3. Waste oil will fall into the storage tank 1 through the filter screen 3, while the waste residue will remain on top of the filter screen 3. The waste residue contains a significant amount of waste oil. At this time, the motor 5 is started. The output end of the motor 5 will drive the drive screw 6 to rotate. The drive screw 6 will drive the screw nut 7 to descend. The screw nut 7 will drive the fixing plate 8 to descend. The fixing plate 8 will drive the fixing rod 9 to descend. The fixing rod 9 will drive the pressure plate 10 to descend. The pressure plate 10 will drive the first sealing ring 16 and the second sealing ring 17 to descend. The second sealing ring 17 descends until it contacts the inner wall of the processing tank 2, sealing it through the first sealing ring 16 and the second sealing ring 17 to prevent waste oil from overflowing. The pressure plate 10 continues to descend, pressing the waste residue to allow the waste oil contained in the residue to be discharged again. The waste oil enters the storage tank 1 through the filter screen 3 for collection. When the pressure plate 10 moves, it also drives the limit rod 13 to move along the limit sleeve 14 to ensure the stability of the pressure plate 10 during movement. When the drive screw 6 rotates, it also drives the drive rod 11 to rotate. After the pressure plate 10 completes pressing the waste residue, the output end of the motor 5 is reversed, which causes the drive screw 6 to reverse, thus raising the pressure plate 10. The drive screw 6 then drives the scraper 12 to rotate again, which scrapes the surface of the filter screen 3 to disperse the waste residue on the surface of the filter screen 3, preventing the waste residue from clogging the filter screen 3 and ensuring that the filtration work can proceed normally. After the collection and filtration work is completed, the pressure plate 10 continues to rise and is removed from the processing box 2 to remove the waste residue from the surface of the filter screen 3. The pressure plate 10 is then lowered back into the processing box 2 for sealing. When it is necessary to discharge the stored waste oil later, the valve on the discharge port 19 is opened to discharge the waste oil.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A recycling and storage device for kitchen waste oil, comprising a storage tank (1), characterized in that, The storage tank (1) is fixedly connected to the top of the processing box (2). The top of the storage tank (1) has an opening. The bottom inner wall of the processing box (2) is fixedly connected to the filter screen (3). The top of the storage tank (1) is fixedly connected to the support frame (4). The top of the support frame (4) is fixedly connected to the motor (5). The output end of the motor (5) is fixedly connected to the drive screw (6). The drive screw (6) is fitted with a screw nut (7). The screw nut (7) is adapted to the drive screw (6). The outer wall of the screw nut (7) is fixedly connected to the fixing plate (8). The bottom of both ends of the fixing plate (8) is fixedly connected to the fixing rod (9). The bottom of both fixing rods (9) is fixedly connected to the same pressure plate (10). The bottom of the drive screw (6) is fixedly connected to the drive rod (6). The bottom of the drive rod (11) is fixedly connected to the scraper (12). The scraper (12) is in contact with the surface of the filter screen (3).

2. The waste cooking oil recycling and storage device according to claim 1, characterized in that, Limiting rods (13) are fixedly connected to the top of both ends of the pressure plate (10). Both limiting rods (13) pass through the support frame (4). Both limiting rods (13) are fitted with limiting sleeves (14). The limiting rods (13) are slidably connected to the limiting sleeves (14). The limiting sleeves (14) are fixedly connected to the inner wall of the support frame (4).

3. The waste cooking oil recycling and storage device according to claim 1, characterized in that, The top of the support frame (4) has two limiting holes (15), which are adapted to the limiting rod (13), and the limiting rod (13) is set in the limiting hole (15).

4. The waste cooking oil recycling and storage device according to claim 1, characterized in that, The pressure plate (10) has a circular hole, and a first sealing ring (16) is provided in the circular hole of the pressure plate (10). The first sealing ring (16) is fixedly connected to the pressure plate (10), and the inner wall of the first sealing ring (16) is in contact with the drive rod (11).

5. The waste cooking oil recycling and storage device according to claim 4, characterized in that, The outer wall of the pressure plate (10) is fixedly connected to a second sealing ring (17), the bottom end of which is a slope.

6. The waste cooking oil recycling and storage device according to claim 1, characterized in that, The storage tank (1) is provided with a pressure relief port (18) at the top and a discharge port (19) at the bottom. Both the pressure relief port (18) and the discharge port (19) are provided with valves.

7. The waste cooking oil recycling and storage device according to claim 6, characterized in that, The bottom of the storage tank (1) is fixedly connected to a base (20).