An oil stain collecting device for a range hood

By incorporating a rotating tube, scraper, and magnetic positioning structure into the range hood, efficient automatic collection of oil stains and convenient disassembly and cleaning are achieved, solving the problems of inefficient collection and inconvenient disassembly of existing devices.

CN224316259UActive Publication Date: 2026-06-02SHENGYUAN AGRICULTURE (SHAOGUAN CITY) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENGYUAN AGRICULTURE (SHAOGUAN CITY) CO LTD
Filing Date
2025-08-11
Publication Date
2026-06-02

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Abstract

This utility model discloses an oil stain collection device for range hoods, relating to the field of range hood technology. It includes a rotating tube, a device body, and a screw. A collection box is installed on the inner side of the lower part of the device body, and a rotating bearing is installed at the middle position of the inner side of the collection box. The top of the screw is connected to the rotating tube, and connecting frames are installed on the outer walls of both ends of the rotating tube. Scrapers are connected to both sides of the connecting frames. A cleaning liquid box is installed on one outer wall of the upper part of the device body. This utility model utilizes a rotating nut, with its threaded engagement, to remove the nut from the anti-slip pad. Then, by applying downward force, the collection box is pulled downwards, separating the second magnetic block from the first magnetic block. Continuing to pull the collection box downwards causes the positioning block to move downwards within the positioning groove, allowing the collection box to be removed for cleaning. This solves the problem of inconvenient disassembly and cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to an oil stain collection device for range hoods. Background Technology

[0002] A range hood, also known as a kitchen exhaust hood, is a kitchen appliance that purifies the kitchen environment. Installed above the stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors. It also condenses and collects these fumes, reducing pollution, purifying the air, and providing safety features such as protection against poisoning and explosions. Each time we use a range hood, a lot of grease accumulates on its inner walls. This grease is difficult to clean, sticking to the walls. While existing grease collection devices can collect this grease, they suffer from inefficiency and are difficult to disassemble and clean once a certain amount of grease has been collected. Therefore, this project was developed to address these issues through in-depth research. Utility Model Content

[0003] The purpose of this utility model is to provide an oil stain collection device for range hoods, so as to solve the problem mentioned in the background art that the existing oil stain collection device for range hoods does not have an automatic collection structure and is easy to disassemble and clean.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an oil stain collection device for a range hood, comprising a rotating tube, a device body, and a screw. Mounting plates are evenly installed on the outer wall of the device body. A control switch is installed on one side of the lower outer wall of the device body. A collection box is installed on the inner side of the lower outer wall of the device body. A rotating bearing is installed at the middle position of the inner side of the collection box, and a screw is installed on the inner side of the rotating bearing. The top end of the screw is connected to the rotating tube. Connecting frames are installed on the outer walls of both ends of the rotating tube, and scrapers are connected to both sides of the connecting frames. A cleaning liquid box is installed on one side of the upper outer wall of the device body, and an output pump is installed on the inner side of the cleaning liquid box.

[0005] Preferably, the output end of the output pump is connected to an output pipe, and one end of the output pipe is movably connected to the rotating pipe through a sealed bearing.

[0006] Preferably, a drive motor is installed on the outer wall of the other side above the device body, and the output end of the drive motor is connected to a second bevel gear through a drive shaft. A first bevel gear is installed on the outer wall above the rotating tube, and a meshing transmission structure is formed between the first bevel gear and the second bevel gear.

[0007] Preferably, the outer walls of both sides of the rotating tube are evenly connected with branch pipes from top to bottom, and one end of each branch pipe is connected to a spray head.

[0008] Preferably, the inner wall below the device body is uniformly provided with positioning grooves, and the outer wall of the collection box is uniformly connected with positioning blocks that cooperate with the positioning grooves.

[0009] Preferably, a first magnetic block is installed inside the upper part of each positioning block, and a second magnetic block is installed inside the upper part of each positioning groove, wherein the magnetic poles of the second magnetic block and the first magnetic block are opposite on opposite sides.

[0010] Preferably, an anti-slip pad is installed on the outer wall of the screw below the rotary bearing, and a nut is threaded onto the lower part of the anti-slip pad.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model provides a drive motor, branch pipes and spray heads. The drive motor is used to make the second bevel tooth rotate. The second bevel tooth meshes with the first bevel tooth, which drives the rotating pipe to rotate multiple branch pipes and spray heads. The output pump works to draw the cleaning liquid in the cleaning liquid box. The cleaning liquid enters the rotating pipe through the output pipe and is then sprayed onto the inner wall of the device body through multiple spray heads to dissolve the oil stains. In addition, the rotating pipe drives the scrapers on both sides of the connecting frame to rotate simultaneously. The scrapers scrape off the oil stains on the inner wall of the device body. The scraped oil stains fall into the collection box for collection, which solves the problem of not having an automatic collection structure.

[0013] (2) This utility model provides a positioning block, a second magnetic block and a first magnetic block. By rotating the nut and threading it, the nut and the anti-slip pad can be removed. Then, the collection box is pulled downward with a little force to separate the second magnetic block from the first magnetic block. Then, the collection box is pulled downward to move the positioning block downward in the positioning groove at the same time. The collection box can be removed for cleaning. By using the rotating tube and the two-section threaded installation at the top of the rotating tube, the lower section of the rotating tube and other structures can be easily disassembled and cleaned as a whole, solving the problem of inconvenient disassembly and cleaning. Attached Figure Description

[0014] Figure 1 This is a cross-sectional structural diagram of the device body of this utility model;

[0015] Figure 2 This is a schematic diagram of the meshing structure of the first and second bevel teeth of this utility model;

[0016] Figure 3 This is a top view of the collection box structure of this utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the positioning groove of this utility model;

[0018] Figure 5 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Scraper; 2. Spray head; 3. Branch pipe; 4. Rotating pipe; 5. Cleaning liquid box; 6. Output pump; 7. Output pipe; 8. Drive motor; 9. Mounting plate; 10. Device body; 11. Connecting frame; 12. Collection box; 13. First bevel tooth; 14. Second bevel tooth; 15. Control switch; 16. First magnetic block; 17. Positioning block; 18. Rotary bearing; 19. Positioning groove; 20. Second magnetic block; 21. Nut; 22. Screw; 23. Anti-slip pad. Detailed Implementation

[0020] 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.

[0021] Example 1: Please refer to Figures 1-5 A range hood oil stain collection device includes a rotating tube 4, a device body 10, and a screw 22. Mounting plates 9 are evenly installed on the outer wall of the device body 10. A control switch 15 is installed on one side of the lower outer wall of the device body 10. A collection box 12 is installed on the inner side of the lower part of the device body 10. A rotating bearing 18 is installed at the middle position of the inner side of the collection box 12. A screw 22 is installed on the inner side of the rotating bearing 18. The top end of the screw 22 is connected to the rotating tube 4. A connecting frame 11 is installed on the outer wall of both ends of the rotating tube 4. A scraper 1 is connected to both sides of the connecting frame 11. A cleaning liquid box 5 is installed on one side of the upper outer wall of the device body 10. An output pump 6 is installed on the inner side of the cleaning liquid box 5.

[0022] The output end of the output pump 6 is connected to the output pipe 7, and one end of the output pipe 7 is movably connected to the rotating pipe 4 through a sealed bearing;

[0023] A drive motor 8 is installed on the outer wall of the other side above the device body 10, and the output end of the drive motor 8 is connected to the second bevel gear 14 through the drive shaft. A first bevel gear 13 is installed on the outer wall above the rotating tube 4, and a meshing transmission structure is formed between the first bevel gear 13 and the second bevel gear 14.

[0024] The outer walls of both sides of the rotating tube 4 are evenly connected with branch pipes 3 from top to bottom, and one end of each branch pipe 3 is connected to a spray head 2;

[0025] Specifically, such as Figure 1 and Figure 2As shown, when using this structure, the second bevel gear 14 rotates by driving the motor 8. The second bevel gear 14 meshes with the first bevel gear 13, causing the rotating tube 4 to drive multiple branch pipes 3 and spray heads 2 to rotate. The output pump 6 draws cleaning liquid from the cleaning liquid box 5. The cleaning liquid enters the rotating tube 4 through the output pipe 7, and then sprays it onto the inner wall of the device body 10 through multiple spray heads 2 to dissolve the oil stains. In addition, the rotating tube 4 drives the scrapers 1 on both sides of the connecting frame 11 to rotate simultaneously. The scrapers 1 scrape off the oil stains on the inner wall of the device body 10. The scraped oil stains fall into the collection box 12 for collection, achieving efficient automatic collection.

[0026] Example 2: The inner wall below the device body 10 is uniformly provided with positioning grooves 19, and the outer wall of the collection box 12 is uniformly connected with positioning blocks 17 that cooperate with the positioning grooves 19.

[0027] The interior of each positioning block 17 is equipped with a first magnetic block 16, and the interior of each positioning groove 19 is equipped with a second magnetic block 20, with the magnetic poles of the second magnetic block 20 and the first magnetic block 16 being opposite to each other.

[0028] An anti-slip pad 23 is installed on the outer wall of the screw 22 below the rotary bearing 18, and a nut 21 is installed on the thread below the anti-slip pad 23;

[0029] Specifically, such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, when using this structure, by rotating the nut 21, the threaded engagement allows the nut 21 to be removed from the anti-slip pad 23. Then, pull the collection box 12 downwards with a little force to separate the second magnetic block 20 from the first magnetic block 16. Then, continue to pull the collection box 12 downwards so that the positioning block 17 moves downwards in the positioning groove 19. The collection box 12 can be removed for cleaning. The rotating tube 4 and the two-section threaded installation at the top of the rotating tube 4 facilitate the overall disassembly and cleaning of the lower section of the rotating tube 4 and other structures, making disassembly and cleaning convenient.

[0030] Working principle: When using this device, the oil fumes first enter the device body 10, and then are discharged from the top. The accumulated oil remains on the inner wall of the device body 10, and then slides down into the collection box 12 for collection.

[0031] Implementation steps for the first innovation point:

[0032] Step 1: The second bevel gear 14 is rotated by the drive motor 8. The second bevel gear 14 meshes with the first bevel gear 13, causing the rotating tube 4 to drive multiple branch tubes 3 and spray head 2 to rotate. The output pump 6 draws cleaning liquid from the cleaning liquid box 5. The cleaning liquid enters the rotating tube 4 through the output tube 7 and is then sprayed onto the inner wall of the device body 10 through multiple spray head 2 to dissolve the oil stains.

[0033] The second step involves rotating the tube 4 to drive the scrapers 1 on both sides of the connecting frame 11 to rotate simultaneously. The scrapers 1 scrape off the oil stains on the inner wall of the device body 10, and the scraped oil stains fall into the collection box 12 for collection, thus achieving efficient automatic collection.

[0034] Implementation steps for the second innovation point:

[0035] Step 1: By rotating the nut 21 and threading it, remove the nut 21 from the anti-slip pad 23. Then, pull the collection box 12 downward with a little force to separate the second magnetic block 20 from the first magnetic block 16. Then, continue to pull the collection box 12 downward so that the positioning block 17 moves downward in the positioning groove 19 at the same time. Remove the collection box 12 and clean it.

[0036] Step 2: By installing the rotating tube 4 with two threaded sections at the top of the rotating tube 4, it is easy to disassemble and clean the lower rotating tube 4 and other structures as a whole.

[0037] 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.

[0038] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil stain collection device for a range hood, comprising a rotating tube (4), a device body (10), and a screw (22), characterized in that: The outer wall of the device body (10) is uniformly equipped with mounting plates (9), a control switch (15) is installed on one side of the lower outer wall of the device body (10), a collection box (12) is installed on the lower inner side of the device body (10), a rotary bearing (18) is installed at the middle position of the inner side of the collection box (12), and a screw (22) is installed on the inner side of the rotary bearing (18). The top end of the screw (22) is connected to a rotating tube (4), and a connecting frame (11) is installed on the outer wall of both ends of the rotating tube (4), and a scraper (1) is connected on both sides of the connecting frame (11). A cleaning liquid box (5) is installed on one side of the upper outer wall of the device body (10), and an output pump (6) is installed on the inner side of the cleaning liquid box (5).

2. The oil stain collection device for a range hood according to claim 1, characterized in that: The output end of the output pump (6) is connected to the output pipe (7), and one end of the output pipe (7) is movably connected to the rotating pipe (4) through a sealed bearing.

3. The oil stain collection device for a range hood according to claim 1, characterized in that: A drive motor (8) is installed on the outer wall of the device body (10) on the other side, and the output end of the drive motor (8) is connected to a second bevel tooth (14) through a drive shaft. A first bevel tooth (13) is installed on the outer wall above the rotating tube (4), and a meshing transmission structure is formed between the first bevel tooth (13) and the second bevel tooth (14).

4. The oil stain collection device for a range hood according to claim 1, characterized in that: The outer walls of the rotating tube (4) are evenly connected with branch pipes (3) from top to bottom, and one end of each branch pipe (3) is connected to a spray head (2).

5. The oil stain collection device for a range hood according to claim 1, characterized in that: The inner wall below the device body (10) is uniformly provided with positioning grooves (19), and the outer wall of the collection box (12) is uniformly connected with positioning blocks (17) that cooperate with the positioning grooves (19).

6. The oil stain collection device for a range hood according to claim 5, characterized in that: The first magnetic block (16) is installed inside the upper part of the positioning block (17), and the second magnetic block (20) is installed inside the upper part of the positioning groove (19). The magnetic poles of the second magnetic block (20) and the first magnetic block (16) are opposite to each other.

7. The oil stain collection device for a range hood according to claim 1, characterized in that: An anti-slip pad (23) is installed on the outer wall of the screw (22) below the rotary bearing (18), and a nut (21) is installed on the thread below the anti-slip pad (23).