Static balance adjustable fan blade

Abstract

The utility model relates to the technical field of fans, and discloses a static balance adjustable fan blade which comprises an installation ring, a plurality of fan blades are arranged on the circumferential side face of the installation ring, a connecting piece is arranged between every two adjacent fan blades, reinforcing ribs are arranged on the outer surfaces of the connecting pieces, and adjusting blocks are arranged on the outer surfaces of the fan blades. According to the utility model, one adjusting block is additionally arranged on each fan blade of the fan, so that a mold can be directly adjusted according to the static unbalance state of a first product before mass production of each batch of products, the situation that the fan uses a balancing weight is reduced, the consistency of the fan is improved, and the fan has better practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a static balance adjustable fan blade. Background Technique

[0002] A fan is a household appliance that uses an electric motor to drive the fan blade to rotate to accelerate the flow of air. It is mainly used for cooling and circulating air. It generates air flow by rotating the fan blade to promote air flow to lower the indoor temperature or provide a cool wind feeling.

[0003] The static unbalance amount is the main performance parameter of the cooling fan. The size of the static unbalance amount will directly affect the key performances such as the noise, vibration, and service life of the product. There is a process of balancing the fan before leaving the factory, and it is necessary to control the static unbalance amount of the fan within a qualified range by adding counterweights. The fans in the prior art cannot detect the static unbalance amount of the fan well. In view of the above problems, a static balance adjustable fan blade is provided. Content of the Utility Model

[0004] The purpose of the utility model is to provide a static balance adjustable fan blade to solve the problems put forward in the above background technique.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a static balance adjustable fan blade, including an installation ring. A plurality of fan blades are arranged on the circumferential side surface of the installation ring. A connecting piece is arranged between every two adjacent fan blades. Reinforcing ribs are arranged on the outer surface of the connecting piece. An adjusting block is arranged on the outer surface of the fan blade.

[0007] Further, the adjusting block includes a first cylinder. The first cylinder is arranged on the outer surface of the fan blade. A first installation groove is opened on the upper surface of the first cylinder. A second cylinder is arranged at one end of the first cylinder. The second cylinder is installed inside the first installation groove through a fixing component.

[0008] Further, the fixing component includes an installation block. An installation hole is opened in the middle of the installation block. A threaded section is threadedly connected inside the installation hole. A blocking block is arranged on the upper surface of the threaded section. An extrusion block is arranged on the lower surface of the threaded section. An expansion sleeve is arranged on the outer surface of the extrusion block.

[0009] Further, a first limiting plate is arranged on the upper surface of the blocking block. A connecting rod is arranged on the lower surface of the first limiting plate. One end of the connecting rod sequentially penetrates through the blocking block, the threaded section, and the extrusion block and extends downward. A second limiting plate is arranged on the lower surface of the expansion sleeve. A connecting rod is arranged on the upper surface of the second limiting plate.

[0010] Further, an expansion sleeve is arranged inside the first installation groove, a second installation groove is formed on the lower surface of the second cylinder, and an installation block is installed inside the second installation groove.

[0011] Further, anti-slip stripes are arranged on the outer surface of the expansion sleeve.

[0012] The utility model has the following beneficial effects:

[0013] (1) By adding an adjustment block to each fan blade of the utility model, the mold can be directly adjusted according to the static unbalance state of the first-piece product before mass production of each batch of products, reducing the use of counterweights for the fan, improving the consistency of the fan, and having good practicability.

[0014] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0016] Figure 1 Schematic diagram of the overall structure of the present utility model Figure 1 ;

[0017] Figure 2 Schematic diagram of the overall structure of the present utility model Figure 2 ;

[0018] Figure 3 Sectional view of the structure of the adjustment block and the fixing component of the present utility model;

[0019] Figure 4 Schematic diagram of the structure of the fixing component of the present utility model;

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] In the figure: 1, mounting ring; 2, fan blade; 3, connecting piece; 4, reinforcing rib; 5, adjustment block; 501, first cylinder; 502, second cylinder; 6, fixing component; 601, mounting block; 602, threaded section; 603, stop block; 604, extrusion block; 605, expansion sleeve; 606, first limiting plate; 607, connecting rod; 608, second limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 - Figure 4 As shown, the present utility model is a static balance adjustable fan blade, which includes an installation ring 1. A plurality of fan blades 2 are provided on the circumferential side surface of the installation ring 1. A connecting piece 3 is provided between every two adjacent fan blades 2. Reinforcing ribs 4 are provided on the outer surface of the connecting piece 3. An adjusting block 5 is provided on the outer surface of the fan blade 2;

[0024] When detecting the static unbalance of the fan, by adding an adjusting block 5 to each fan blade 2 of the fan, the mold can be directly adjusted according to the static unbalance state of the first-piece product before mass production of each batch of products, reducing the use of counterweight blocks for the fan, improving the consistency of the fan, and having good practicability;

[0025] The adjusting block 5 includes a first cylinder body 501. The first cylinder body 501 is provided on the outer surface of the fan blade 2. A first installation groove is opened on the upper surface of the first cylinder body 501. One end of the first cylinder body 501 is provided with a second cylinder body 502. The second cylinder body 502 is installed inside the first installation groove through a fixing component 6;

[0026] The fixing component 6 includes a mounting block 601. An installation hole is opened in the middle of the mounting block 601. A threaded section 602 is threadedly connected inside the installation hole. A stop block 603 is provided on the upper surface of the threaded section 602. An extrusion block 604 is provided on the lower surface of the threaded section 602. An expansion sleeve 605 is provided on the outer surface of the extrusion block 604;

[0027] A first limiting plate 606 is provided on the upper surface of the stop block 603. A connecting rod 607 is provided on the lower surface of the first limiting plate 606. One end of the connecting rod 607 sequentially penetrates through the stop block 603, the threaded section 602 and the extrusion block 604 and extends downward. A second limiting plate 608 is provided on the lower surface of the expansion sleeve 605. A connecting rod 607 is provided on the upper surface of the second limiting plate 608;

[0028] An expansion sleeve 605 is provided inside the first installation groove. A second installation groove is opened on the lower surface of the second cylinder body 502. The mounting block 601 is installed inside the second installation groove;

[0029] When a certain fan blade 2 needs to remove the second cylinder 502, by rotating the second cylinder 502 clockwise, the second cylinder 502 drives the mounting block 601 to rotate. When the mounting block 601 rotates, the threaded section 602 can move axially upward, and then the extrusion block 604 moves upward, so that the extrusion block 604 cancels the extrusion of the expansion sleeve 605. At this time, the second cylinder 502 can be pulled upward to separate the second cylinder 502 from the first cylinder 501, reducing the weight of the corresponding fan blade 2;

[0030] When a certain fan blade 2 needs to install the second cylinder 502, by placing the second cylinder 502 outside the first cylinder 501 of the fan blade 2 where the second cylinder 502 needs to be installed, the fixing component 6 is located inside the first installation groove. By rotating the second cylinder 502 counterclockwise, the second cylinder 502 drives the mounting block 601 to rotate. When the mounting block 601 rotates, the threaded section 602 can move axially downward, and then the extrusion block 604 moves downward, so that the extrusion block 604 extrudes the expansion sleeve 605, causing the expansion sleeve 605 to expand outward and tightly adhere to the inner wall of the first installation groove, thereby completing the fixed installation between the second cylinder 502 and the first cylinder 501, increasing the weight of the corresponding fan blade 2;

[0031] The outer surface of the expansion sleeve 605 is provided with anti-slip stripes;

[0032] Through the anti-slip stripes provided on the outer surface of the expansion sleeve 605, the friction between the expansion sleeve 605 and the first cylinder 501 can be increased, avoiding the displacement of the expansion sleeve 605 inside the first installation groove.

[0033] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A statically balanced adjustable fan blade, comprising a mounting ring (1), characterized in that: A plurality of fan blades (2) are provided on the peripheral side surface of the mounting ring (1); A connecting piece (3) is provided between every two adjacent blades (2); a reinforcing rib (4) is provided on the outer surface of the connecting piece (3); and an adjusting block (5) is provided on the outer surface of the blade (2).

2. The statically balanced adjustable fan blade according to claim 1, characterized in that: The regulating block (5) comprises a first column (501), the outer surface of the fan blade (2) is provided with the first column (501), and the upper surface of the first column (501) is provided with a first mounting groove; A second column (502) is provided at one end of the first column (501), and the second column (502) is mounted inside the first mounting groove by means of a fixing assembly (6).

3. The statically balanced adjustable fan blade according to claim 2, characterized in that: The fixing assembly (6) comprises a mounting block (601), a mounting hole is provided in the middle of the mounting block (601), and a threaded section (602) is connected to the inner thread of the mounting hole; A stopper (603) is provided on the upper surface of the threaded section (602), an extrusion block (604) is provided on the lower surface of the threaded section (602), and an expansion sleeve (605) is provided on the outer surface of the extrusion block (604).

4. The statically balanced adjustable fan blade according to claim 3, characterized in that: A first limiting plate (606) is provided on the upper surface of the stopper (603), and a connecting rod (607) is provided on the lower surface of the first limiting plate (606); One end of the connecting rod (607) passes through the stopper (603), the threaded section (602) and the extrusion block (604) in sequence and extends downward; a second limiting plate (608) is provided on the lower surface of the expansion sleeve (605); and a connecting rod (607) is provided on the upper surface of the second limiting plate (608).

5. The statically balanced adjustable fan blade according to claim 2, characterized in that: An expansion sleeve (605) is arranged inside the first installation groove, a second installation groove is opened on the lower surface of the second column (502), and a mounting block (601) is installed inside the second installation groove.

6. The statically balanced adjustable fan blade according to claim 3, characterized in that: The outer surface of the expansion sleeve (605) is provided with anti-slip stripes.

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