A range hood with a lifting type smoke suction cavity

By optimizing the design of the support and lifting mechanism of the lifting smoke chamber, the problems of instability and inconvenient maintenance of the smoke chamber in the range hood have been solved, achieving a more stable and easier-to-maintain lifting effect.

CN224364889UActive Publication Date: 2026-06-16ZHEJIANG MONI ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MONI ELECTRIC CO LTD
Filing Date
2025-05-14
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing lift-type smoke extraction chamber in range hoods is unstable and inconvenient to maintain.

Method used

The design incorporates a lifting mechanism for the support frame and the smoking chamber, combining a lifting motor, lifting gears, and rack and pinion meshing. Stability is enhanced by sliding rods and pulleys, and the smoking chamber is retracted into the support frame when not in use to reduce the load.

Benefits of technology

It improves the operational stability of lift-type range hoods, extends their service life, and reduces maintenance difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the range hood field, especially a range hood with lifting type smoke suction cavity, including support, support top with the air bellow connection, smoke suction cavity, the both sides of smoke suction cavity set up a group of lifting mechanism each, under the drive of lifting mechanism, smoke suction cavity can lift relative to the support, and smoke suction cavity ascends and is located relative in the support inside, simultaneously, the support top with smoke suction cavity top between the connection has telescopic flue. After using above -mentioned scheme, make lifting type range hood in the work running process, have more stable lifting transmission effect, and more convenient maintenance to lifting mechanism.
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Description

Technical Field

[0001] This utility model relates to the field of range hoods, and specifically to a range hood with a liftable smoke extraction chamber. Background Technology

[0002] A range hood, also known as a cooking hood, is a kitchen appliance used to purify 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 toxic substances and explosions.

[0003] Range hoods are typically installed directly above the cooktop. To make the smoke extraction chamber (the chamber where the air inlet is located) as close as possible to the cooktop where fumes are generated, existing patents have designed the smoke extraction chamber as a lift-up structure to achieve the above effect. For example, a range hood disclosed in CN117450551A has its transmission component located in the middle of the air box (upper box) and connected to the smoke extraction chamber through a connection point.

[0004] However, the above structure is not stable when the smoking chamber is raised and lowered, and it is located on the back of the bellows, making maintenance inconvenient.

[0005] Therefore, the inventors conducted further research and developed a range hood with a liftable smoke chamber, which led to this invention. Utility Model Content

[0006] The purpose of this utility model is to provide a range hood with a lifting smoke chamber, which has a more stable lifting transmission effect and is more convenient to maintain.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A range hood with a liftable smoke extraction chamber, including

[0009] The bracket, with its top connected to the bellows;

[0010] The smoking chamber has a set of lifting mechanisms on each side. Driven by the lifting mechanisms, the smoking chamber can rise and fall relative to the support, and after rising, the smoking chamber is located inside the support.

[0011] Meanwhile, a telescopic flue connects the top of the support to the top of the smoking chamber.

[0012] When the smoking chamber is not in use, it is located inside the bracket (with a shell). When it needs to work, it descends relative to the bracket, while the air box with the fan remains relatively stationary, reducing the load on the lifting mechanism. Since the lifting mechanism is located on the left and right sides of the bracket, its operation is highly stable. At the same time, the lifting mechanism can be maintained by removing the shell of the bracket.

[0013] Furthermore, the lifting mechanism includes a lifting motor, which is linked with a lifting gear, and the lifting gear meshes with racks located on both sides of the support.

[0014] Furthermore, each side of the rack is equipped with two sliding rods, which are fitted onto the top of the smoking chamber.

[0015] The stability of the smoking chamber during raising and lowering can be improved by using a sliding rod.

[0016] Furthermore, a pulley is provided on the other side of the rack corresponding to the position of the lifting gear, and the pulley moves synchronously with the lifting gear.

[0017] Pulleys are used to improve the stability of lifting gears during lifting.

[0018] Furthermore, the smoking chamber is equipped with a flap.

[0019] The flap opens when the range hood is working and remains closed at other times to prevent the smoke extraction chamber from hitting the support when it rises.

[0020] By adopting the above solution, this utility model has the following advantages compared with the prior art:

[0021] By optimizing the lifting structure of the smoke extraction chamber, the overall operational stability of the lifting range hood is improved, its service life is extended, and maintenance difficulty and cost are reduced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the smoking chamber rising;

[0023] Figure 2 This is a schematic diagram of the smoking chamber descending;

[0024] Figure 2-1 yes Figure 2 A magnified view of a section at point A in the middle;

[0025] Label Explanation

[0026] Smoking chamber 1, flap 11, support 2,

[0027] Lifting gear 3, rack 4, pulley 5, sliding rod 6, bushing 61. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 As shown, a range hood with a liftable smoke chamber includes a bracket and a smoke chamber 1. The bracket forms a lifting channel, which is used to guide the lifting of the smoke chamber 1 by means of a lifting mechanism. The top of the bracket 2 is used to install a fan box, and a connection port for the fan box smoke outlet pipe is provided at the top.

[0030] like Figure 2-1 As shown, the lifting mechanism is located at the top of the smoking chamber 1. It includes a lifting gear 3 on both sides of the bracket 2, a lifting motor (which is corresponding to the lifting gear 3 and drives the lifting gear 3 to rotate), and a rack 4. One side of the rack 4 meshes with the lifting gear 3, and the other side is provided with two pulleys 5. The lifting gear 3 and the two pulleys 5 are distributed in an isosceles triangle on both sides of the rack 4, which can ensure that the lifting gear 3 is in a stable state when it moves.

[0031] Meanwhile, a sliding rod 6 is provided on each side of the rack 4. A bushing 61 is provided on the outer sleeve of the sliding rod 6. The bushing 61 is also provided on the top of the smoking chamber 1, opposite to the sides of the lifting gear 3. The bushing moves on the sliding rod along with the lifting gear. This structure can ensure that the entire lifting mechanism has better stability during operation.

[0032] Figure 1 In the schematic diagram, the smoking chamber 1 is located inside the bracket 2 and is not yet in working condition. At this time, the lifting gears 3 on both sides of the top of the smoking chamber 1 are located at the upper end of the rack 4.

[0033] and Figure 2 In the schematic diagram, the smoking chamber 1 descends to below the bracket 2. At this time, the lifting gear 3 also arrives at the lower end of the rack 4. At this time, the top of the smoking chamber 1 and the top of the bracket 2 are separated by a distance. Therefore, the flue set between the two needs to adopt a telescopic structure.

[0034] A flap 11 structure can also be provided on the front of the smoke extraction chamber 1. When the range hood is in operation, the flap 11 opens to guide the fumes. Range hoods with a flap 11 structure are a common technical means in this field and will not be elaborated here.

[0035] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.

Claims

1. A range hood with a liftable smoke extraction chamber, characterized in that: include The bracket, with its top connected to the bellows; The smoking chamber has a set of lifting mechanisms on each side. Driven by the lifting mechanisms, the smoking chamber can rise and fall relative to the support, and after rising, the smoking chamber is located inside the support. Meanwhile, a telescopic flue connects the top of the support to the top of the smoking chamber.

2. A range hood with a liftable smoke extraction chamber according to claim 1, characterized in that: The lifting mechanism includes a lifting motor, which is linked to a lifting gear, which meshes with racks located on both sides of the support.

3. A range hood with a liftable smoke extraction chamber according to claim 2, characterized in that: Two sliding rods are provided on each side of the rack, and the sliding rods are fitted on the top of the smoking chamber.

4. A range hood with a liftable smoke extraction chamber according to claim 2 or 3, characterized in that: A pulley is provided on the other side of the rack corresponding to the position of the lifting gear, and the pulley moves synchronously with the lifting gear.

5. A range hood with a liftable smoke extraction chamber according to claim 1 or 2, characterized in that: The smoking chamber is equipped with a flap.