Multi-blade air circulation fan structure with high uniform wind feeling

Abstract

The multi-blade air circulation fan structure comprises a hub and a plurality of blades, the blades are distributed outside the hub in an annular structure mode, an arc-shaped groove is formed in the front surface of the hub, a plurality of connecting grooves are formed in the inner wall face of the arc-shaped groove in an annular structure mode, and connecting plates are arranged in the connecting grooves. And one ends of the blades are installed on the outer side faces of the corresponding connecting plates, the interiors of the arc-shaped grooves are in threaded connection with locking rings for pressing and fixing the connecting plates to the hub, and locking assemblies are installed between the locking rings and the hub. The hub is simple in structure and can adapt to different conditions and environments by changing the number of the blades so as to increase adaptability, the blades can be rapidly disassembled and assembled, the smoothness of the surface of the hub can be ensured through the locking ring, the connecting plate and the sealing plug, and wind diversion is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, and particularly relates to a multi-blade air circulation fan structure with a high uniform wind feeling. Background Art

[0002] Compared with traditional electric fans, an air circulation fan can blow air out in a spiral shape along a certain direction. With the agitation of the fan blades, a spiral columnar wind can be formed. The wind blown by the air circulation fan is at a relatively long distance and has good directivity. Such wind has a larger contact area with the surrounding air, disperses the surrounding air, drives more air to participate in the indoor air circulation, and accelerates the indoor air flow, thereby balancing the indoor temperature.

[0003] At present, the blades used in air circulation fans are all fixed, the blades cannot be disassembled, and the number of blades cannot be changed, so it cannot be adjusted according to the indoor area or usage situation, resulting in poor adaptability of the air circulation fan. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a multi-blade air circulation fan structure with a high uniform wind feeling, which can install different blades according to the use environment and the blades can be replaced to solve the problems raised in the above background art.

[0005] The utility model is realized by the following technical solutions: a multi-blade air circulation fan structure with a high uniform wind feeling, including a hub and a plurality of blades. The blades are distributed in an annular structure outside the hub. An arc-shaped groove is provided on the front surface of the hub. A plurality of connecting grooves are provided on the inner wall surface of the arc-shaped groove in an annular structure. Connecting plates are provided in the connecting grooves. One end of each blade is installed on the outer side surface of the corresponding connecting plate. A locking ring that presses and fixes the connecting plate on the hub is threadedly connected inside the arc-shaped groove. A locking component is installed between the locking ring and the hub.

[0006] As a preferred technical solution, the locking component includes a positioning post and a sealing plug. A first arc-shaped groove is provided on the inner ring surface of the annular groove. A second arc-shaped groove is provided on the inner ring surface of the locking ring corresponding to the first arc-shaped groove. The first arc-shaped groove and the second arc-shaped groove form a positioning hole together. The positioning post is inserted into the positioning hole, and the sealing plug is inserted into the opening outside the positioning hole.

[0007] As a preferred technical solution, the locking component further includes a stud. A screw hole is provided on the inner wall surface of the first arc-shaped groove. One end of the stud is installed on the positioning post, and the other end is threadedly connected to the screw hole. A cross groove is provided at the end of the positioning post away from the stud. The outer side surface of the sealing plug is flush with the front surface of the hub. [[ID=2...]]

[0008] As a preferred technical solution, the cross-sections of the connecting groove and the connecting plate are both arranged in a dovetail structure, and the outer side surface of the connecting plate is flush with the outer ring surface of the hub.

[0009] As a preferred technical solution, the outer ring surface of the locking ring is provided with an arc-shaped inclined flow guiding surface, and the inclined flow guiding surface is flush with the front surface of the hub.

[0010] As a preferred technical solution, the connecting plate is divided into those with blades installed and those without blades installed.

[0011] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. As the number of blades increases, the air is cut more finely, and when the wind blows on people, it will be softer and more comfortable, which helps to reduce the discomfort caused by direct blowing of the fan. As the number of fan blades decreases, the noise generated by air cutting will also decrease accordingly. The reduction in the number of blades will reduce the energy consumption of the air circulation fan to increase adaptability, and the blades can be quickly disassembled and assembled. Moreover, through the locking ring, the connecting plate and the sealing plug, the flatness of the hub surface can be ensured, avoiding affecting the flow guidance of the wind. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 It is a rear view of the present utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the present utility model after removing the locking ring;

[0016] Figure 4 It is a schematic diagram of the structure of the present utility model after further removing the locking assembly.

[0017] Among them, 1, hub; 2, blade; 3, connecting plate; 4, locking ring; 5, sealing plug; 6, positioning column; 7, annular groove; 8, first arc groove; 9, screw hole. Detailed Embodiments

[0018] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0019] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0021] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in

[0022] a multi-blade air circulation fan structure with a high-uniform air feeling of the present utility model includes a hub 1 and a plurality of blades 2. The blades 2 are distributed in an annular structure outside the hub 1. An arc-shaped groove is provided on the front surface of the hub 1. A plurality of connecting grooves are provided on the inner wall surface of the arc-shaped groove in an annular structure. Connecting plates 3 are provided in the connecting grooves. One ends of the blades 2 are all installed on the outer side surfaces of the corresponding connecting plates 3. A locking ring 4 that is threadedly connected inside the arc-shaped groove and presses and fixes the connecting plate 3 on the hub 1 is provided. A locking component is installed between the locking ring 4 and the hub 1.

[0023] In this embodiment, the locking component includes a positioning post 6 and a sealing plug 5. A first arc-shaped groove 8 is provided on the inner circumferential surface of the annular groove 7. A second arc-shaped groove is provided on the inner circumferential surface of the locking ring 4 corresponding to the first arc-shaped groove 8. The first arc-shaped groove 8 and the second arc-shaped groove combine to form a positioning hole. The positioning post 6 is inserted into the positioning hole, and the sealing plug 5 is inserted into the opening outside the positioning hole.

[0024] In this embodiment, the cross-sections of the connecting groove and the connecting plate 3 are both arranged in a dovetail-shaped structure, and the outer side surface of the connecting plate 3 is flush with the outer circumferential surface of the hub 1. The dovetail structure can position the connecting plate and prevent the connecting plate from directly disengaging from the connecting groove.

[0025] In this embodiment, the outer circumferential surface of the locking ring 4 is provided with an arc-shaped inclined flow guiding surface, which is flush with the front surface of the hub 1, so that the wind energy generated by the blades can pass along the inclined flow guiding surface, avoiding wind chaos.

[0026] In this embodiment, the connecting plate 3 is divided into the one with the blade 2 installed and the one without the blade 2 installed. The connecting plate without the blade installed can block the connecting groove to ensure the flatness of the outer surface of the hub.

[0027] During use, the number of blades can be adjusted according to the usage situation or the indoor area. When adjusting, the sealing plug can be pulled out, and the positioning post can be removed from the positioning hole by a screwdriver. After the blocking of the positioning post is removed, the locking ring can be disengaged from the annular groove, so that the connecting plate can be taken out or inserted into the connecting plate with blades outward. Whether increasing or decreasing the number of blades, a connecting plate needs to be inserted into the connecting groove to ensure the flatness of the outer wall surface of the hub, avoiding affecting the wind guiding effect.

[0028] Among them, after the connecting plate is inserted, the locking ring can be threadedly connected to the annular groove again. The connecting plate can be pressed and positioned by the locking ring to ensure the stability of the blade installation. To avoid loosening of the locking ring, the positioning post can be inserted into the positioning hole again, and the locking ring can be positioned on the hub by the positioning ring to ensure the stability of the locking ring installation. After the positioning post is fixed, the sealing plug is inserted into the positioning hole again, and the flatness of the front surface of the hub can be ensured by the sealing plug.

[0029] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A multi-blade air circulation fan structure with a high uniform wind feeling, characterized in that: It includes a hub (1) and a plurality of blades (2). The blades (2) are distributed in an annular structure outside the hub (1). An arc-shaped groove is provided on the front surface of the hub (1). A plurality of connecting grooves are provided on the inner wall surface of the arc-shaped groove in an annular structure. Connecting plates (3) are provided in the connecting grooves. One end of each blade (2) is installed on the outer side surface of the corresponding connecting plate (3). A locking ring (4) that presses and fixes the connecting plate (3) on the hub (1) is threadedly connected inside the arc-shaped groove. A locking assembly is installed between the locking ring (4) and the hub (1).

2. The structure of the multi-blade air circulation fan with high uniform air feeling according to claim 1, characterized in that: The locking assembly includes a positioning post (6) and a sealing plug (5). A first arc-shaped groove (8) is provided on the inner circumferential surface of the annular groove (7). A second arc-shaped groove is provided on the inner circumferential surface of the locking ring (4) corresponding to the first arc-shaped groove (8). The first arc-shaped groove (8) and the second arc-shaped groove combine to form a positioning hole. The positioning post (6) is inserted into the positioning hole, and the sealing plug (5) is inserted into the opening outside the positioning hole.

3. The structure of the multi-blade air circulation fan with high uniform air feeling according to claim 2, wherein: The locking assembly further includes a stud. A screw hole (9) is provided on the inner wall surface of the first arc-shaped groove (8). One end of the stud is installed on the positioning post (6), and the other end is threadedly connected to the screw hole (9). A cross groove is provided at the end of the positioning post (6) away from the stud. The outer side surface of the sealing plug (5) is flush with the front surface of the hub (1).

4. The structure of the multi-blade air circulation fan with high uniform air feeling according to claim 1, characterized in that: The cross-sections of the connecting groove and the connecting plate (3) are both arranged in a dovetail structure, and the outer side surface of the connecting plate (3) is flush with the outer circumferential surface of the hub (1).

5. The structure of the multi-blade air circulation fan with high uniform air feeling according to claim 1, characterized in that: The outer circumferential surface of the locking ring (4) is provided with an arc-shaped inclined guiding surface, and the inclined guiding surface is flush with the front surface of the hub (1).

6. The structure of the multi-blade air circulation fan with high uniform air feeling according to claim 1, characterized in that: The connecting plates (3) are divided into those with blades (2) installed and those without blades (2) installed.

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