Air duct beneficial to air intake of alcohol stove

Abstract

The utility model relates to the technical field of air guide mechanisms, in particular to an air guide cylinder beneficial to air intake of an alcohol stove, which comprises a collecting cylinder, an outer pipe and a spiral blade arranged between the collecting cylinder and the outer pipe, and the spiral blade extends spirally from the top of the collecting cylinder to the bottom of the collecting cylinder. A lower ring hole for air to enter the spiral blade is formed in the bottom between the collecting barrel and the outer pipe, an upper ring hole for air to pass through the top of the spiral blade is formed in the top between the collecting barrel and the outer pipe, a threaded column at the bottom of the collecting barrel is connected with an external base, and the collecting barrel is arranged above the external base. The lower annular hole and the upper annular hole in the bottom are large in air inlet area, fuel materials are placed in the collecting barrel, the outer glass cover is placed on the outer side of the outer pipe, the air guide barrel and the outer pipe are not blocked, blocking is not prone to occurring, and the ventilation effect is better. And the air inlet amount of the guide groove is easily influenced.

Description

Technical Field

[0001] This utility model relates to the field of air guide mechanism technology, and in particular to an air guide duct that facilitates air intake for an alcohol stove. Background Technology

[0002] Currently, Chinese Patent Publication No. CN213207936U discloses a stove with air guide grooves, including a stove body and a container for placing fuel; the stove body has a cavity in the middle; the stove body has several air guide grooves, which extend from the upper end face to the lower end face of the stove body and are connected to the inside of the cavity; the container is placed in the cavity. However, when this structure of the stove is in use, the top edge of the collecting cylinder and the bottom edge of the outer glass are installed on the stove, which can easily affect the air intake of the air guide grooves. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes an air guide duct that facilitates the air intake of an alcohol stove. It solves the problem that when the top edge of the collection tube and the bottom edge of the outer glass are installed on the stove in the existing structure of the stove, the air intake of the guide groove is easily affected.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an air guide duct for facilitating air intake in an alcohol stove, comprising a collection cylinder for holding alcohol fuel, an outer tube spaced apart on the outside of the collection cylinder, and a spiral blade disposed between the collection cylinder and the outer tube. The spiral blade extends from the top to the bottom of the collection cylinder in a vortex shape. The bottom between the collection cylinder and the outer tube has a lower annular hole for air to enter the spiral blade, and the top between the collection cylinder and the outer tube has an upper annular hole for air to pass through the top of the spiral blade.

[0005] Furthermore, the bottom of the outer tube is provided with a support ring for supporting the outer glass cover.

[0006] Furthermore, the bottom of the outer tube is provided with a threaded stud that screws into the outer glass cover.

[0007] Furthermore, the spiral blades are provided in two to five configurations.

[0008] Furthermore, the support ring is provided with a fixing mechanism for fixing the external glass.

[0009] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0010] The air intake duct of this alcohol stove features a design where the bottom threaded post of the collecting cylinder connects to the external base, with the collecting cylinder positioned above the base. Compared to existing designs that create air intake channels by opening holes in the outer pipe, this structure is more aesthetically pleasing and integrated. The lower and upper annular holes at the bottom provide a larger air intake area. Fuel is placed inside the collecting cylinder, and an external glass cover is placed outside the outer pipe. There are no obstructions between the air intake duct and the outer pipe, reducing the risk of blockage and improving ventilation. The base provides a barrier between the collecting cylinder and the tabletop, further reducing the risk of high-temperature damage to the tabletop. This design also solves the problem in existing stoves where the top edge of the collecting cylinder and the bottom edge of the external glass cover can affect the air intake of the guide channel when installed on the stove. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a partial structural cross-sectional schematic diagram of this utility model;

[0013] Figure 3 This is a schematic diagram of the collecting cylinder and spiral blades in use according to this utility model;

[0014] Figure 4 This is a partial structural cross-sectional schematic diagram of this utility model;

[0015] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model in use. Detailed Implementation

[0016] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0017] refer to Figures 1 to 5 This embodiment provides an air duct that facilitates air intake for an alcohol stove, including a collection cylinder 1 for holding alcohol fuel, an outer tube 2 spaced outside the collection cylinder 1, and a spiral blade 3 disposed between the collection cylinder 1 and the outer tube 2. The spiral blade 3 extends from the top to the bottom of the collection cylinder 1 in a vortex shape. The bottom between the collection cylinder 1 and the outer tube 2 has a lower annular hole 1a for air to enter the spiral blade 3, and the top between the collection cylinder 1 and the outer tube 2 has an upper annular hole 2a for air to pass through the top of the spiral blade 3.

[0018] The air duct is designed with a spiral blade connecting the collecting cylinder and the outer tube. The spiral blade allows air to pass freely through, and the spiral blade guides the air to form a cyclone. In use, the outer glass cover can be placed outside the outer tube. When the alcohol fuel inside the collecting cylinder burns, air enters through the lower ring hole due to the chimney effect. The air passes between the collecting cylinder and the outer tube, and because the air forms a cyclone through the spiral blade, it causes the flame burning inside the collecting cylinder to spiral upwards towards the fuel, resulting in a better aesthetic appearance. Compared to existing structures that create air guide channels by opening holes in the outer tube, this structure is more aesthetically pleasing and integrated. Furthermore, the lower and upper ring holes at the bottom have a large air intake area, making them less prone to clogging. Some air ducts have air guide channels inside the stove. When this structure is installed on the stove, the top edge of the collecting cylinder and the bottom edge of the outer glass can easily affect the air intake of the guide channel. Also, the fuel inside the stove is close to the bottom surface, which can easily cause burns to the table.

[0019] The bottom of the outer tube 2 is provided with a support ring 4 for supporting the outer glass cover, which facilitates the placement of the outer glass cover on the outside of the outer tube.

[0020] The bottom of the outer tube 2 is provided with a threaded stud 5 that screws into the outer glass cover, which facilitates screwing and fixing with the outer base.

[0021] The spiral blades 3 are provided in two to five. In actual use, the number of spiral blades can be adjusted according to the height and diameter of the collection cylinder. It is not limited to two to five, but preferably three is the best. Two to five air intakes form a good cyclone effect.

[0022] refer to Figure 4 The bottom of the outer tube 2 is provided with a threaded protrusion 2a that screws into the outer glass cover, which facilitates the screwing and fixing of the outer glass cover to the outside of the outer tube, making it less likely to fall off compared to the support ring glass cover.

[0023] The support ring 4 is provided with a fixing mechanism 6 for fixing the outer glass. The support ring 4 has guide holes 41 on both sides of the lateral direction. The fixing mechanism 6 includes a movable block 61 that is slidably disposed on both sides of the bottom surface of the support ring 4. An elastic element 62 is provided between the movable block 61 and the collecting cylinder 1. The top surface of the movable block 61 is provided with a limiting block 63 for passing through the guide hole 41. A rubber block 64 is provided on the side of the limiting block 63 away from the outer tube 2.

[0024] Before placing the outer glass on top of the support ring, first move the moving block to one side of the outer tube. The top of the moving block moves from the outside of the guide hole inside the support ring to the inside. After the moving blocks on both sides move, the distance between the top rubber blocks decreases, and the outer glass will fall down and fit against the top surface of the support ring. Then release the moving block. Under the action of the elastic element, the moving block will move outward. The rubber block on top of the moving block will fit against the bottom of the outer glass. The rubber block fits tightly against the bottom of the outer glass, making it difficult to remove the outer glass upward and preventing it from accidentally falling out of the outer tube. When it is necessary to remove the outer glass, simply push the moving blocks on both sides towards the outer tube to remove it.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A duct for facilitating air intake in an alcohol stove, characterized in that, The device includes a collection cylinder (1) for holding alcohol fuel, an outer tube (2) spaced outside the collection cylinder (1), and a spiral blade (3) located between the collection cylinder (1) and the outer tube (2). The spiral blade (3) extends from the top to the bottom of the collection cylinder (1) in a vortex shape. The bottom between the collection cylinder (1) and the outer tube (2) has a lower annular hole (1a) for air to enter the spiral blade (3), and the top between the collection cylinder (1) and the outer tube (2) has an upper annular hole (2a) for air to pass through the top of the spiral blade (3). The bottom of the outer tube (2) is provided with... There is a support ring (4) for supporting the outer glass cover. The support ring (4) is provided with a fixing mechanism (6) for fixing the outer glass. The support ring (4) has guide holes (41) on both sides of the lateral direction. The fixing mechanism (6) includes a movable block (61) that is slidably disposed on both sides of the bottom surface of the support ring (4). An elastic element (62) is provided between the movable block (61) and the collecting cylinder (1). The top surface of the movable block (61) is provided with a limiting block (63) for passing through the guide hole (41). The limiting block (63) has a rubber block (64) on the side away from the outer tube (2).

2. The air duct for facilitating air intake in an alcohol stove according to claim 1, characterized in that: The spiral blades (3) are provided in two to five.

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