Exhaust device of range hood

Abstract

The utility model discloses an exhaust device of a range hood. The exhaust device comprises an exhaust fume collecting hood, an air inlet duct and an exhaust duct, a purification box is fixedly connected to the front side of the exhaust fume collecting hood, a filter screen is inserted into the purification box, sliding blocks are fixedly connected to the two sides of the filter screen, a handle is fixedly connected to the top of the filter screen, a guide plate is fixedly connected to the interior of the exhaust fume collecting hood, an air inlet duct is fixedly connected to the tail of the exhaust fume collecting hood, the air inlet duct is a gradually-shrinking air duct and gradually shrinks from an opening of the exhaust fume collecting hood, and a fan is fixedly connected to the tail end of the air inlet duct. The top of the draught fan is fixedly connected with a power source, the top of the power source is fixedly connected with a supporting rod, the top of the supporting rod is fixedly connected with a solar panel, and the exhaust duct is fixedly connected to the other end of the draught fan. The rotating speed of the draught fan can be automatically adjusted according to the oil smoke concentration, the smoke exhaust efficiency is improved, and the air flow resistance and the air noise are reduced through the gradually-shrinking and gradually-expanding design of the air inlet duct and the air exhaust duct.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to an exhaust device for a range hood. Background Technology

[0002] The exhaust system of a range hood is an important component of the kitchen ventilation system. Its main function is to efficiently remove cooking fumes and odors generated during cooking, while maintaining low noise levels and high energy efficiency. As people's demands for quality of life increase, the exhaust systems of range hoods are constantly being improved and developed.

[0003] Traditional range hood exhaust systems are inadequate in terms of smoke extraction efficiency, especially when dealing with large amounts of cooking fumes, often resulting in incomplete smoke removal. Existing range hoods also generate significant noise during operation, affecting the comfort of the kitchen environment. Traditional exhaust systems are not effective at separating oil and smoke, leading to oil accumulation inside the range hood and affecting its lifespan. In multi-family dwellings, traditional exhaust systems cannot effectively prevent cooking fumes from other residents from entering one's own kitchen. Utility Model Content

[0004] To solve the above problems, this utility model provides an exhaust device for a range hood, which is achieved through the following technical solution.

[0005] An exhaust device for a range hood includes a smoke collection hood, an air inlet duct, and an exhaust duct. A purification box is fixedly connected to the front of the smoke collection hood, a filter screen is inserted into the purification box, sliders are fixedly connected to both sides of the filter screen, and a handle is fixedly connected to the top of the filter screen. A guide plate is fixedly connected inside the smoke collection hood. The air inlet duct is fixedly connected to the rear of the smoke collection hood and is a gradually narrowing duct that gradually narrows from the opening of the smoke collection hood. A fan is fixedly connected to the rear end of the air inlet duct, a power supply is fixedly connected to the top of the fan, a support rod is fixedly connected to the top of the power supply, the top cross-section of the support rod is sloped, and a solar panel is fixedly connected to the top of the support rod. The exhaust duct is fixed to the other end of the fan and is designed as a gradually expanding duct that gradually widens from the fan outlet.

[0006] Furthermore, an intelligent sensing module is fixedly connected inside the smoke collection hood.

[0007] Furthermore, the rear side of the smoke collection hood is funnel-shaped and the entire structure is made of aluminum alloy.

[0008] Furthermore, the fan is a high-efficiency energy-saving fan, and the fan is controlled by an intelligent sensing module.

[0009] Furthermore, the surface of the smoke collection hood is provided with a non-stick oil coating.

[0010] Furthermore, an anti-backflow device is fixedly connected to the bottom of the exhaust duct.

[0011] The beneficial effects of this utility model are that the oil fumes are separated by the filter, which is conducive to smoke exhaust. The addition of an intelligent sensing module inside the smoke collection hood can automatically adjust the fan speed according to the oil fume concentration, thereby improving the smoke exhaust efficiency. The tapered and expanding designs of the air inlet and exhaust ducts reduce airflow resistance and wind noise. The various components of the device are simple to connect and easy to install. Key components such as the fan and control switch are easy to maintain and replace, reducing maintenance costs. An anti-backflow device is installed at the bottom of the exhaust duct to prevent outdoor air from flowing back in. Attached Figure Description

[0012] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 : A perspective view of the exhaust device of a range hood according to the present invention;

[0014] Figure 2 : Rear view of the exhaust device of a range hood according to the present invention;

[0015] Figure 3 : A cross-sectional view of the exhaust device of a range hood according to the present invention.

[0016] The attached figures are labeled as follows:

[0017] 1-Smoke hood, 11-Purification box, 12-Filter screen, 13-Slider, 14-Handle, 15-Baffle plate, 16-Intelligent sensing module, 17-Non-stick coating, 2-Air inlet duct, 21-Fan, 22-Power supply, 23-Support rod, 24-Solar panel, 3-Exhaust duct, 31-Anti-backflow device. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3The present invention provides the following embodiments: an exhaust device for a range hood, characterized in that it includes a smoke collection hood 1, an air inlet duct 2, and an exhaust duct 3; a purification box 11 is fixedly connected to the front side of the smoke collection hood 1, a filter screen 12 is inserted into the purification box 11, sliders 13 are fixedly connected to both sides of the filter screen 12, a handle 14 is fixedly connected to the top of the filter screen 12, a guide plate 15 is fixedly connected inside the smoke collection hood 1, the air inlet duct 2 is fixedly connected to the tail of the smoke collection hood 1, the air inlet duct 2 is a gradually narrowing duct that gradually narrows from the opening of the smoke collection hood 1, a fan 21 is fixedly connected to the tail end of the air inlet duct 2, a power supply 22 is fixedly connected to the top of the fan 21, a support rod 23 is fixedly connected to the top of the power supply 22, the top cross-section of the support rod 23 is a slope, a solar panel 24 is fixedly connected to the top of the support rod 23, and the exhaust duct 3 is fixedly connected to the other end of the fan 21, the exhaust duct 3 is designed as a gradually expanding duct that gradually widens from the outlet of the fan 21.

[0020] Preferably, an intelligent sensing module 16 is fixedly connected inside the smoke collection hood 1.

[0021] Preferably, the rear side of the smoke hood 1 is funnel-shaped and the whole is made of aluminum alloy.

[0022] Preferably, the fan 21 is a high-efficiency energy-saving fan, and the fan 21 is controlled by the intelligent sensing module 16.

[0023] Preferably, the surface of the smoke hood 1 is provided with a non-stick coating 17.

[0024] Preferably, an anti-backflow device 31 is fixedly connected to the bottom of the exhaust duct 3.

[0025] A specific embodiment of this utility model is as follows:

[0026] The device is fixed behind the range hood. After turning on the device, the fan 21 is turned on to extract the fumes. The fumes enter the purification box 11 from the range hood. The filter 12 in the purification box 11 will separate the fumes and put them into the fume collection hood 1. The intelligent sensing module 16 will adjust the fan 21 according to the amount of smoke to ensure that the fumes do not remain in the fume collection hood 1. The smoke enters the air inlet duct 2, passes through the fan 21, and is accelerated to be discharged through the exhaust duct 3. The solar panel 24 can store electricity for the power supply 22 on sunny days to save energy. The filter 12 can be removed by the handle 14 for replacement or cleaning.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An exhaust device for a range hood, characterized in that: It includes a smoke hood (1), an air inlet duct (2), and an exhaust duct (3); a purification box (11) is fixedly connected to the front of the smoke hood (1), a filter screen (12) is inserted into the purification box (11), sliders (13) are fixedly connected to both sides of the filter screen (12), and a handle (14) is fixedly connected to the top of the filter screen (12). A guide plate (15) is fixedly connected inside the smoke hood (1). The air inlet duct (2) is fixedly connected to the rear of the smoke hood (1). The air inlet duct (2) is a tapering duct that draws air from the smoke hood. The opening of the cover (1) gradually narrows. A fan (21) is fixed to the end of the air inlet duct (2). A power supply (22) is fixed to the top of the fan (21). A support rod (23) is fixed to the top of the power supply (22). The top of the support rod (23) has a slope. A solar panel (24) is fixed to the top of the support rod (23). The exhaust duct (3) is fixed to the other end of the fan (21). The exhaust duct (3) is designed as a gradually expanding duct, gradually widening from the outlet of the fan (21).

2. The exhaust device of a range hood according to claim 1, characterized in that: The smoke collection hood (1) is fixedly connected to an intelligent sensing module (16).

3. The exhaust device for a range hood according to claim 1, characterized in that: The rear side of the smoke collection hood (1) is funnel-shaped and the whole is made of aluminum alloy.

4. The exhaust device of a range hood according to claim 1, characterized in that: The fan (21) is a high-efficiency energy-saving fan (21), and the fan (21) is controlled by the intelligent sensing module (16).

5. The exhaust device of a range hood according to claim 1, characterized in that: The surface of the smoke collection hood (1) is provided with a non-stick coating (17).

6. The exhaust device of a range hood according to claim 1, characterized in that: The bottom of the exhaust duct (3) is fixed with an anti-backflow device (31).

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