Kitchen exhaust hood structure

By introducing filters, grease traps, and auxiliary cleaning mechanisms into kitchen exhaust hoods, the problem of inconvenient cleaning of existing exhaust hoods has been solved, achieving automated cleaning and convenient washing results, and improving ease of use and smoke extraction efficiency.

CN223939512UActive Publication Date: 2026-02-24JIANGXI GUFENG ENVIRONMENTAL PROTECTION EQUIP CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520639603.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-02-24
Estimated Expiration
2035-04-07

AI Technical Summary

Technical Problem

Existing kitchen exhaust hoods have complex structures and lack auxiliary cleaning functions, which makes cleaning inconvenient during use, affecting their performance and making maintenance difficult.

Method used

A fume hood structure including a filter screen, an oil collection tank, and an auxiliary cleaning mechanism was designed. The filter screen filters oil fumes, the oil collection tank collects oil, and a micro pump and cleaning fluid nozzle are used to achieve automatic cleaning, which facilitates the cleaning of the filter screen and the inner wall of the fume hood.

Benefits of technology

It achieves automated cleaning, reduces manual cleaning workload, keeps the inside of the fume hood clean, reduces the risk of equipment failure, and improves ease of use and smoke extraction effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223939512U_ABST
    Figure CN223939512U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of smoke exhaust hoods, in particular to a kitchen smoke exhaust hood structure which comprises a smoke hood shell, a smoke inlet is formed in one side of the smoke hood shell, a filter screen is installed at the smoke inlet in a sliding mode, an oil collecting groove is installed at the inner bottom end of the smoke hood shell in a sliding mode, and an auxiliary cleaning mechanism is arranged at the inner top end of the smoke hood shell. The auxiliary cleaning mechanism comprises a cleaning liquid conveying pipe, and a plurality of cleaning liquid nozzles are fixedly arranged on the outer side of the cleaning liquid conveying pipe. The micro pump is started through the control panel, cleaning liquid is pumped and discharged into the cleaning liquid conveying pipe from the cleaning liquid storage box and sprayed to the inner wall of the smoke hood shell through the cleaning liquid spraying head, cleaning sewage flows into the oil collecting groove from the inner wall of the smoke hood shell to be treated in a centralized mode, the auxiliary cleaning effect of the smoke exhaust hood is achieved, and the workload and frequency of manual cleaning are greatly reduced; according to the smoke exhaust hood, the interior of the smoke exhaust hood can be kept clean, the smoke exhaust effect is improved, and meanwhile the risks of oil stain accumulation and equipment failures caused by untimely or incomplete manual cleaning are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of exhaust hood technology, specifically a kitchen exhaust hood structure. Background Technology

[0002] The main function of a kitchen exhaust hood is to collect and remove cooking fumes, odors, and heat generated during cooking. It effectively prevents fumes from spreading in the kitchen and from adhering to walls, cookware, and other surfaces, maintaining kitchen cleanliness and hygiene. Simultaneously, it improves kitchen air quality, reduces the health hazards of cooking fumes, and creates a comfortable and healthy working environment for kitchen staff. Furthermore, it helps protect kitchen appliances and equipment, extending their lifespan.

[0003] As disclosed in the authorization announcement number CN209726287U, a kitchen exhaust hood installation structure includes an exhaust hood with L-shaped connecting plates at both the top and bottom ends of one side. Each L-shaped connecting plate contains several connecting bolts. An ultraviolet germicidal lamp is located inside the exhaust hood at the end furthest from the L-shaped connecting plates. Hanging bases are located on both sides of the outer wall of the exhaust hood above the ultraviolet germicidal lamp. Compared with the prior art, the advantages of this utility model are: The utility model, through its limiting ring, connecting rope, and key ring, provides protection when the hanging rope is suspended from the exhaust hood. When the hook at the bottom of the hanging rope falls off, the limiting ring, connecting rope, and key ring ensure that the exhaust hood will not fall accidentally, avoiding the danger of the exhaust hood falling. The ultraviolet germicidal lamp also gives the range hood a sterilization function, preventing residual fumes from harming the human body. Furthermore, the multiple L-shaped connecting plates...

[0004] However, the structure of this utility model is relatively complex and lacks auxiliary cleaning functions, which makes it difficult to ensure the cleanliness of the utility model during use, affecting the use effect. It also brings inconvenience to the later cleaning and maintenance of the utility model. To this end, we propose a kitchen exhaust hood structure, which solves the problems of lack of auxiliary cleaning measures and inconvenience in maintenance during the use of this utility model, and improves the convenience and practical effect of the utility model. Utility Model Content

[0005] The purpose of this utility model is to provide a kitchen exhaust hood structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A kitchen exhaust hood structure includes an exhaust hood shell, an exhaust inlet on one side of the exhaust hood shell, a filter screen slidably installed in the exhaust inlet, an oil collection groove slidably installed at the bottom of the exhaust hood shell, and an auxiliary cleaning mechanism provided at the top of the exhaust hood shell.

[0008] By adopting the above technical solution: the filter screen is set so that the oil fumes entering the inside of the fume hood from the smoke inlet are filtered, reducing the risk of blockage of the exhaust channel; and the oil collection tank is set so that the oil inside the fume hood can be collected and treated uniformly.

[0009] Preferably, the auxiliary cleaning mechanism includes a cleaning fluid delivery pipe, and a plurality of cleaning fluid nozzles are fixedly installed on the outside of the cleaning fluid delivery pipe. The spray direction of the cleaning fluid nozzles covers the inner side wall and inner top surface of the fume hood shell. The cleaning fluid delivery pipe is fixedly installed inside the fume hood shell. A micro pump is fixedly connected to one end of the cleaning fluid delivery pipe. A cleaning fluid storage tank is fixedly connected to the input end of the micro pump. The micro pump and the cleaning fluid storage tank are fixedly installed on one side of the fume hood shell. An injection port is opened at the top of the cleaning fluid storage tank.

[0010] By adopting the above technical solution: the cleaning liquid is pumped from the cleaning liquid storage tank into the cleaning liquid delivery pipe by a micro pump, and then sprayed out by the cleaning liquid nozzle onto the inner wall of the fume hood. The cleaning wastewater flows from the inner wall of the fume hood into the oil collection tank for centralized treatment, thereby achieving the auxiliary cleaning effect of the fume hood.

[0011] Preferably, the smoke inlet has a slot, and the filter screen has locking strips fixed at both ends that fit the slot. The bottom of the smoke hood shell has a square mounting hole near the cleaning liquid storage tank. The oil collection tank is slidably installed inside the smoke hood shell through the square mounting hole. One end of the oil collection tank has a hidden pull groove, and one end of the filter screen has an L-shaped pull block.

[0012] By adopting the above technical solution: the setting of the slot and the strip facilitates the installation and removal of the filter screen; the setting of the L-shaped pull block and the hidden pull groove makes it easy for users to pull the filter screen and the oil collection tank out of the fume hood shell.

[0013] Preferably, the top of the smoke hood shell is fixedly provided with an exhaust port, and the filter screen is made of stainless steel.

[0014] Preferably, a control panel is fixedly installed on the top side of the fume hood housing, and the control panel is electrically connected to the micro pump.

[0015] By adopting the above technical solution, the control panel settings make it convenient for users to perform regular auxiliary cleaning of the fume hood casing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This kitchen exhaust hood structure uses a micro pump to draw cleaning liquid from a storage tank into a delivery pipe, and then sprays it onto the inner wall of the hood through nozzles. The wastewater from cleaning flows into an oil collection tank for centralized treatment, thus achieving an auxiliary cleaning effect for the exhaust hood. This greatly reduces the workload and frequency of manual cleaning, maintains the cleanliness of the inside of the exhaust hood, improves the exhaust effect, and also reduces the risk of oil accumulation and equipment failure caused by untimely or incomplete manual cleaning.

[0018] 2. This kitchen exhaust hood structure allows the filter screen to be pulled out from one side of the hood shell by pulling out an L-shaped pull block. This not only facilitates thorough cleaning of the filter screen but also exposes the inside of the hood shell, making it easier to clean the inner wall of the hood shell. Compared with traditional exhaust hoods with fixed filters, this exhaust hood is easier to clean.

[0019] 3. This kitchen exhaust hood structure features a pull-out oil collection tray design, which facilitates the collection and handling of oil during use, preventing oil from dripping onto the countertop and causing pollution, thus improving the practicality of the exhaust hood. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a kitchen exhaust hood;

[0021] Figure 2 A partial structural diagram of a kitchen exhaust hood;

[0022] Figure 3 A schematic diagram of the filter structure of a kitchen exhaust hood;

[0023] Figure 4 This is a schematic diagram of the auxiliary cleaning mechanism of a kitchen exhaust hood structure.

[0024] In the diagram: 1. Fume hood housing; 2. Smoke inlet; 3. Filter screen; 4. Oil collection tank; 5. Cleaning fluid delivery pipe; 6. Cleaning fluid nozzle; 7. Miniature pump; 8. Cleaning fluid storage tank; 101. Square mounting hole; 102. Exhaust / exhaust port; 103. Control panel; 201. Slot; 301. Locking strip; 302. L-shaped pull block; 401. Concealed pull groove; 801. Liquid injection port. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0027] A kitchen exhaust hood structure includes an exhaust hood shell 1, an exhaust inlet 2 on one side of the exhaust hood shell 1, a filter screen 3 slidably installed in the exhaust inlet 2, an oil collection groove 4 slidably installed at the bottom inside the exhaust hood shell 1, and an auxiliary cleaning mechanism provided at the top inside the exhaust hood shell 1.

[0028] The above solution allows for the filtering of oil fumes entering the fume hood housing 1 through the smoke inlet 2, reducing the risk of blockage in the exhaust channel. The oil collection tank 4 allows for the collection and unified treatment of oil inside the fume hood housing 1, preventing oil from dripping onto the countertop and causing pollution.

[0029] In this embodiment, preferably, the auxiliary cleaning mechanism includes a cleaning liquid delivery pipe 5, and a plurality of cleaning liquid nozzles 6 are fixedly installed on the outside of the cleaning liquid delivery pipe 5. The spray direction of the cleaning liquid nozzles 6 covers the inner side wall and inner top surface of the fume hood shell 1. The cleaning liquid delivery pipe 5 is fixedly installed inside the fume hood shell 1. One end of the cleaning liquid delivery pipe 5 is fixedly connected to a micro pump 7. The input end of the micro pump 7 is fixedly connected to a cleaning liquid storage tank 8. The micro pump 7 and the cleaning liquid storage tank 8 are fixedly installed on one side of the fume hood shell 1. The top of the cleaning liquid storage tank 8 is provided with an injection port 801.

[0030] The above scheme involves using a micro pump 7 to pump cleaning fluid from the cleaning fluid storage tank 8 into the cleaning fluid delivery pipe 5, and then spraying it from the cleaning fluid nozzle 6 onto the inner wall of the fume hood housing 1. The cleaning wastewater flows from the inner wall of the fume hood housing 1 into the oil collection tank 4 for centralized treatment, thus achieving the auxiliary cleaning effect of the fume hood. This greatly reduces the workload and frequency of manual cleaning, maintains the cleanliness of the inside of the fume hood, and improves the smoke extraction effect.

[0031] In this embodiment, preferably, the smoke inlet 2 is provided with a slot 201, and the filter screen 3 is fixedly provided with a locking strip 301 that fits into the slot 201 at both ends. The bottom end of the smoke hood shell 1 is provided with a square mounting hole 101 near the cleaning liquid storage tank 8. The oil collection tank 4 is slidably installed inside the smoke hood shell 1 through the square mounting hole 101. One end of the oil collection tank 4 is fixedly provided with a hidden pull groove 401, and one end of the filter screen 3 is fixedly provided with an L-shaped pull block 302.

[0032] The above solution facilitates the installation and removal of the filter screen 3 through the design of the slot 201 and the clip 301. The design of the L-shaped pull block 302 and the hidden pull groove 401 makes it easy for users to pull the filter screen 3 and the oil collection groove 4 out of the fume hood shell 1, thus improving the maintenance convenience of the fume hood.

[0033] In this embodiment, preferably, the top of the smoke hood shell 1 is fixedly provided with an exhaust port 102, and the filter screen 3 is made of stainless steel.

[0034] In this embodiment, preferably, a control panel 103 is fixedly installed on the top side of the fume hood shell 1, and the control panel 103 is electrically connected to the micro pump 7.

[0035] The above solution allows users to perform regular auxiliary cleaning of the fume hood housing 1 through the settings on the control panel 103.

[0036] In this embodiment, a kitchen exhaust hood structure utilizes a micro pump 7 activated via the control panel 103 to pump cleaning fluid from the cleaning fluid storage tank 8 into the cleaning fluid delivery pipe 5. The fluid is then sprayed from the cleaning fluid nozzle 6 onto the inner wall of the hood housing 1. Wastewater from the cleaning process flows from the inner wall of the hood housing 1 into the oil collection tank 4 for centralized treatment. This provides auxiliary cleaning for the exhaust hood, significantly reducing the workload and frequency of manual cleaning, maintaining the cleanliness of the hood's interior, improving smoke extraction efficiency, and reducing the risk of oil accumulation and equipment malfunction due to untimely or incomplete manual cleaning. During actual use, users typically clean the exhaust hood periodically. By pulling out the L-shaped pull block 302, the filter screen 3 can be removed from one side of the hood housing 1. This not only facilitates thorough cleaning of the filter screen 3 but also exposes the interior of the hood housing 1, making cleaning of the inner wall easier. Compared to traditional fixed-filter exhaust hoods, this exhaust hood is significantly easier to clean. In addition, the pull-out oil collection tank 4 design facilitates the collection and treatment of oil during the use of the fume hood, preventing oil from dripping onto the countertop and causing pollution, thus improving the practical effect of the fume hood.

[0037] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A kitchen exhaust hood structure, comprising an exhaust hood shell (1), characterized in that: The smoke hood shell (1) has a smoke inlet (2) on one side, a filter screen (3) is slidably installed in the smoke inlet (2), an oil collection groove (4) is slidably installed at the bottom inside the smoke hood shell (1), and an auxiliary cleaning mechanism is provided at the top inside the smoke hood shell (1). The auxiliary cleaning mechanism includes a cleaning fluid delivery pipe (5), and a plurality of cleaning fluid nozzles (6) are fixedly installed on the outside of the cleaning fluid delivery pipe (5).

2. The kitchen exhaust hood structure according to claim 1, characterized in that: The spray direction of the cleaning fluid nozzle (6) covers the inner side wall and inner top surface of the fume hood shell (1). The cleaning fluid delivery pipe (5) is fixedly installed inside the fume hood shell (1). One end of the cleaning fluid delivery pipe (5) is fixedly connected to a micro pump (7). The input end of the micro pump (7) is fixedly connected to a cleaning fluid storage tank (8).

3. The kitchen exhaust hood structure according to claim 2, characterized in that: The micro pump (7) and the cleaning fluid storage tank (8) are fixedly installed on one side of the fume hood shell (1), and the top of the cleaning fluid storage tank (8) is provided with a liquid injection port (801).

4. The kitchen exhaust hood structure according to claim 1, characterized in that: The smoke inlet (2) is provided with a slot (201), and the filter screen (3) is fixedly provided with a strip (301) at both ends that fits the slot (201).

5. The kitchen exhaust hood structure according to claim 1, characterized in that: A square mounting hole (101) is provided at the bottom of the fume hood housing (1) near the cleaning liquid storage tank (8), and the oil collection tank (4) is slidably installed inside the fume hood housing (1) through the square mounting hole (101).

6. The kitchen exhaust hood structure according to claim 1, characterized in that: The oil collection tank (4) is fixedly provided with a hidden pull groove (401) at one end, and the filter screen (3) is fixedly provided with an L-shaped pull block (302) at one end.

7. The kitchen exhaust hood structure according to claim 1, characterized in that: The top of the smoke hood shell (1) is fixedly provided with an exhaust port (102), and the filter screen (3) is made of stainless steel.

8. The kitchen exhaust hood structure according to claim 1, characterized in that: A control panel (103) is fixedly installed on the top side of the smoke hood housing (1), and the control panel (103) is electrically connected to the micro pump (7).

Citation Information

Patent Citations

  • Exhaust hood mounting structure for kitchen decoration

    CN209726287U