Oil smoke exhaust hood with purification function

By introducing an elastic connection mechanism and a magnetic adsorption mechanism into the fume hood, the problem of inconvenient disassembly and cleaning of the existing fume hood filter mechanism is solved, realizing convenient disassembly and cleaning of the filter mechanism and improving ease of use.

CN224151009UActive Publication Date: 2026-04-21SHANGHAI HONGBEN HOTEL EQUIP ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HONGBEN HOTEL EQUIP ENG CO LTD
Filing Date
2025-05-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing fume hood's filter mechanism accumulates grease during use, affecting the filtration effect and making it inconvenient to disassemble and clean, thus causing inconvenience in use.

Method used

A range hood with purification function was designed, employing an elastic connection mechanism and a magnetic adsorption mechanism to connect the bracket and the locking block. The bracket abuts against the locking block in its natural state. The locking block is disengaged by pulling a pull ring. The bracket's structural diagram shows pull rings on both sides of its bottom, magnets on both sides of its top, a first magnet on both sides of its top, a third magnet on both sides of its bottom, and a fourth magnet on both sides of its bottom. The bracket and the locking block are connected by magnetic adsorption, and the pull rings facilitate the disassembly and cleaning of the bracket.

Benefits of technology

It enables easy disassembly and cleaning of the filter mechanism, simplifies the operation process, and improves the ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil smoke exhaust hoods, and discloses an oil smoke exhaust hood with a purification function, which comprises a hood body, a smoke exhaust pipe is mounted at the top end of the hood body, an exhaust fan connected with the smoke exhaust pipe is arranged in the hood body, the bottom of the hood body is open, and L-shaped clamping blocks are mounted on two sides of the bottom of the hood body. The bracket abuts against the interior of the clamping block of the cover body under the action of the elastic connecting mechanism and is matched with the first magnet and the third magnet to achieve connection of the bracket and the clamping block, and the filter frame is attracted in the bracket under the action of the third magnet and the fourth magnet. Oil stains and harmful gases in kitchen oil fume are filtered through the filter plate on the filter frame, and when the filter frame needs to be cleaned, the bracket is pulled through the pull ring, so that the bracket retreats from the clamping block of the cover body, the bracket is located below the cover body, and a certain distance exists between the bracket and the cover body; at the moment, the filtering frame in the bracket can be taken out for cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of fume extraction hood technology, specifically a fume extraction hood with purification function. Background Technology

[0002] A kitchen is a room where food is prepared and cooked. A modern kitchen typically includes appliances such as a stove (gas stove, electric stove, microwave oven, or oven), a countertop (sink or dishwasher), and food storage equipment (such as refrigerators and freezers). Among these, a range hood is an essential kitchen appliance.

[0003] Existing range hoods filter fumes through internal filtration mechanisms during use. However, as the usage time increases, more grease accumulates on the filtration mechanism, affecting its performance. Furthermore, existing range hoods are inconvenient to disassemble and clean, which is quite troublesome. Therefore, those skilled in the art have proposed range hoods with purification functions to solve the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to provide a fume hood with purification function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A range hood with purification features includes a hood body, an exhaust pipe installed at the top of the hood body, an exhaust fan connected to the exhaust pipe inside the hood body, an open bottom for the hood body, and L-shaped locking blocks installed on both sides of the bottom of the hood body. It also includes:

[0007] The bracket and the filter rack placed inside the bracket, the outer wall of the filter rack is in contact with the inner wall of the bracket, and two symmetrically distributed filter plates are installed on the filter rack for filtering oil and harmful gases in the fumes.

[0008] An elastic connection mechanism is provided inside the cover and connected to the top two sides of the bracket to provide elastic tension to the bracket.

[0009] As a further embodiment of this utility model: the elastic connection mechanism includes two sets of connecting frames installed inside the cover and connected to the bracket. Each set of connecting frames consists of two frames, which are symmetrically arranged on the bracket. The two sets of connecting frames are distributed on both sides of the top of the bracket. The connecting frame is fixedly connected to the sleeve, and the sleeve is slidably connected to the guide rod. The two ends of the guide rod are equipped with limiting plates connected to the cover. A spring connected to the sleeve is provided on the limiting plate at the bottom of the guide rod.

[0010] As a further improvement of this utility model: the top two sides of the bracket are provided with first magnets, and the card block is provided with second magnets.

[0011] As a further improvement of this utility model: a third magnet is provided on both sides of the bottom of the bracket, and a fourth magnet is provided on both sides of the bottom of the filter frame.

[0012] As a further improvement of this utility model, pull rings are provided on both sides of the bottom of the bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When in use, the bracket is pressed against the locking block of the cover body under the action of the elastic connecting mechanism, and the bracket is connected to the locking block with the first magnet and the third magnet. The bracket is also attracted to the filter frame under the action of the third magnet and the fourth magnet. The filter plate on the filter frame filters the oil and harmful gases in the kitchen fumes. When the filter frame needs to be cleaned, the bracket is pulled by the pull ring, so that the bracket is disengaged from the locking block of the cover body, so that the bracket is located below the cover body and there is a certain distance between the bracket and the cover body. At this time, the filter frame inside the bracket can be taken out for cleaning. The cleaning is convenient and the use is simple. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a range hood with a purification system.

[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0016] Figure 3 for Figure 1 A magnified view of a section at point B in the middle.

[0017] Figure 4 This is a schematic diagram of the bracket structure in a range hood with purification function.

[0018] In the diagram: 1. Cover; 2. Exhaust pipe; 3. Locking block; 4. Bracket; 5. First magnet; 6. Second magnet; 7. Pull ring; 8. Filter frame; 9. Filter plate; 10. Third magnet; 11. Fourth magnet; 12. Connecting frame; 13. Limiting plate; 14. Guide rod; 15. Sleeve; 16. Spring; 17. Exhaust fan. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] Please see Figures 1-4A range hood with purification features includes a hood body 1, an exhaust pipe 2 installed at the top of the hood body 1, an exhaust fan 17 connected to the exhaust pipe 2 inside the hood body 1, an open bottom for the hood body 1, and L-shaped locking blocks 3 installed on both sides of the bottom of the hood body 1. It also includes:

[0021] The bracket 4 and the filter rack 8 placed inside the bracket 4, the outer wall of the filter rack 8 is in contact with the inner wall of the bracket 4, and two symmetrically distributed filter plates 9 are installed on the filter rack 8 for filtering oil and harmful gases in the fumes.

[0022] An elastic connection mechanism is provided inside the cover 1 and connected to the top two sides of the bracket 4 to provide elastic tension to the bracket 4.

[0023] During use, under the action of the elastic connecting mechanism, the bracket 4 rests against the locking block 3 of the cover 1, and the filter rack 8 is also placed inside the bracket 4. The filter plate 9 on the filter rack 8 filters the oil stains and harmful gases in the kitchen fumes. When it is necessary to clean the filter rack 8, by pulling the bracket 4, the bracket 4 is disengaged from the locking block 3 of the cover 1, so that the bracket 4 is located below the cover 1 and there is a certain distance between the bracket 4 and the cover 1. At this time, the filter rack 8 inside the bracket 4 can be taken out for cleaning. The cleaning is relatively convenient and the use is simple.

[0024] In one embodiment, pull rings 7 are provided on both sides of the bottom of the bracket 4.

[0025] By setting pull rings 7 on both sides of the bottom of the bracket 4, when it is necessary to clean the filter rack 8 placed inside the bracket 4, the pull rings 7 can be pulled down with both hands to pull the bracket 4 down and disengage it from the locking block 3 of the cover 1, which is convenient and practical.

[0026] In one embodiment, the elastic connection mechanism includes two sets of connecting frames 12 installed inside the cover 1 and connected to the bracket 4. Each set of connecting frames 12 consists of two frames, which are symmetrically arranged on the bracket 4. The two sets of connecting frames 12 are distributed on both sides of the top of the bracket 4. The connecting frames 12 are fixedly connected to the sleeves 15, and the sleeves 15 are slidably connected to the guide rods 14. The two ends of the guide rods 14 are equipped with limiting plates 13 connected to the cover 1. A spring 16 connected to the sleeves 15 is provided on the limiting plate 13 at the bottom of the guide rods 14.

[0027] Under normal conditions, spring 16 is compressed, which causes sleeve 15 to be subjected to elastic thrust, resulting in upward elastic force on connecting bracket 12. This allows bracket 4 to naturally abut against block 3. When cleaning the filter rack 8 inside bracket 4, pull bracket 4 down by pull ring 7 until the gap between the top of bracket 4 and the bottom of cover 1 is sufficient to easily remove filter rack 8 from inside bracket 4. During this process, the downward movement of bracket 4 will cause connecting bracket 12 to descend, causing sleeve 15 to slide down along guide rod 14 and compress spring 16 at the bottom. Then, release the pull ring 7, and under the action of spring 16, sleeve 15 will rise along guide rod 14 and gradually return to its original position. This will cause connecting bracket 12 to rise and gradually return to its original position, abutting against block 3. After the filter rack 8 is cleaned, repeat the above operation, pull bracket 4 out of cover 1, put in the cleaned filter rack 8, and then release the pull ring 7 to return bracket 4 to its original position, thus completing the cleaning and replacement of filter rack 8. The operation is simple.

[0028] In one embodiment, the bracket 4 is provided with a first magnet 5 on both sides of the top, and the card block 3 is provided with a second magnet 6.

[0029] The magnetic attraction of the second magnet 6 to the first magnet 5 makes the bracket 4 and the card block 3 stably connected.

[0030] In one embodiment, a third magnet 10 is provided on both sides of the bottom of the bracket 4, and a fourth magnet 11 is provided on both sides of the bottom of the filter frame 8.

[0031] The magnetic attraction between the third magnet 10 and the fourth magnet 11 allows the filter frame 8 to be stably placed inside the bracket 4.

[0032] In use, the bracket 4 rests against the locking block 3 of the cover 1 under the action of the elastic connecting mechanism, and the bracket 4 is connected to the locking block 3 with the first magnet 5 and the third magnet 10. The bracket 4 is attached to the filter frame 8 under the action of the third magnet 10 and the fourth magnet 11. The exhaust fan 17 generates suction force to draw the oil fumes into the cover 1. The filter plate 9 on the filter frame 8 filters the oil and harmful gases in the kitchen fumes and then discharges them through the exhaust pipe 2. When it is necessary to clean the filter frame 8, the bracket 4 is pulled by the pull ring 7, so that the bracket 4 is disengaged from the locking block 3 of the cover 1, so that the bracket 4 is located below the cover 1 with a certain distance from the cover 1. At this time, the filter frame 8 inside the bracket 4 can be taken out for cleaning. The cleaning is convenient and the use is simple.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fume hood with purification, comprising a hood body, characterized in that, The top of the hood is equipped with a smoke exhaust pipe, and the inside of the hood is equipped with a fan connected to the smoke exhaust pipe. The bottom of the hood is open, and L-shaped locking blocks are installed on both sides of the bottom of the hood. It also includes: The bracket and the filter rack placed inside the bracket, the outer wall of the filter rack is in contact with the inner wall of the bracket, and two symmetrically distributed filter plates are installed on the filter rack for filtering oil and harmful gases in the fumes. An elastic connection mechanism is provided inside the cover and connected to the top two sides of the bracket to provide elastic tension to the bracket.

2. The hood with purification according to claim 1, characterized in that The elastic connection mechanism includes two sets of connecting frames installed inside the cover and connected to the bracket. Each set of connecting frames consists of two frames, which are symmetrically arranged on the bracket. The two sets of connecting frames are distributed on both sides of the top of the bracket. The connecting frames are fixedly connected to the sleeves, and the sleeves are slidably connected to the guide rods. The two ends of the guide rods are equipped with limiting plates connected to the cover. A spring connected to the sleeve is provided on the limiting plate at the bottom of the guide rod.

3. The hood with purification according to claim 1, characterized in that, The bracket has a first magnet on both sides of its top, and the card block has a second magnet inside.

4. The hood with purification according to claim 3, characterized in that The bracket has a third magnet on both sides of its bottom, and the filter has a fourth magnet on both sides of its bottom.

5. The hood with purification according to claim 4, characterized in that, Pull rings are provided on both sides of the bottom of the bracket.