A fan blade connection stability and balance structure

Abstract

This utility model relates to a stable and balanced structure for connecting fan blades, belonging to the field of fan blade connection technology. It includes a fan disc and a fan blade body disposed outside the fan disc. A buffer and fixing structure is provided between the fan blade body and the fan disc to mount the fan blade body. The buffer and fixing structure includes a mounting component fixedly connected to the side of the fan disc near the fan blade body. This stable and balanced structure for connecting fan blades, by setting the mounting component and the insertion plate, allows the fan blade body to be mounted to the fan disc. Four fixing bolts are used to fix the fan blade body to the mounting component and improve the stability of the fan blade body installation. Furthermore, the rubber gasket improves the balance of the fan blade body during high-speed rotation and also provides a certain degree of noise reduction and buffering effect.

Description

Technical Field

[0001] This utility model relates to the field of fan blade connection technology, specifically a stable and balanced structure for connecting fan blades. Background Technology

[0002] Fan blades are one of the core components of a fan, playing a crucial role in its performance and usability. Common fan blade shapes include various types, such as traditional straight blades, propeller blades, and backward-curved blades. Different blade shapes exhibit different aerodynamic performance. Fan blades are typically made of materials such as plastic and metal. Plastic fan blades offer advantages such as light weight, low cost, and rust resistance; metal fan blades are more robust and durable, with better heat dissipation, but are relatively more expensive.

[0003] Fan blades rotate at high speed driven by a motor, generating airflow. The rotation of the blades draws in surrounding air, then accelerates and expels it through centrifugal or axial force, creating wind. Factors such as the shape, angle, and number of fan blades affect the fan's performance indicators, including airflow, air pressure, and noise.

[0004] Chinese utility model patent CN210829853U discloses a fan blade buffer device, including a fan blade body with a blade stalk on one side. The fan blade body is fixedly connected to the blade stalk, and a countersunk hole is formed on the blade stalk. A bushing is provided inside the countersunk hole. The bushing includes an outer sleeve and an inner sleeve inside the outer sleeve. Vibration-damping rubber is provided between the outer sleeve and the inner sleeve, and the outer sleeve and the inner sleeve are connected as one unit by the vibration-damping rubber. The outer sleeve is located inside the countersunk hole. This utility model is easy to process, low in cost, and has strong pressure resistance. However, in use, since fan blades are usually mounted on a fan disc, and this device does not mention the structure of the fan disc, it is unclear how to fix and install the fan blades, which cannot meet production requirements. Therefore, a fan blade connection stability and balance structure is proposed to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a stable and balanced fan blade connection structure, which has the advantage of facilitating the installation of fan blades on the fan disc. This solves the problem that since fan blades are usually installed on the fan disc, and the structure of the fan disc is not mentioned in this device, it is unclear how to fix and install the fan blades, thus failing to meet production requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fan blade connection stability and balance structure, including a fan wheel and a fan blade body disposed outside the fan wheel, wherein a buffer fixing structure capable of installing the fan blade body is provided between the fan blade body and the fan wheel.

[0007] The buffer fixing structure includes a mounting component fixedly connected to the fan disc near the fan blade body. A connecting plate is fixedly connected to the side of the fan blade body near the mounting component. An insertion plate extending into the mounting component is fixedly connected to the side of the connecting plate away from the fan blade body. A rubber gasket is fixedly connected to the front of the insertion plate. A fixing bolt that passes through both the rubber gasket and the insertion plate is threadedly connected to the front of the mounting component. A bolt catch that can engage the fixing bolt is slidably connected to the back of the mounting component.

[0008] Furthermore, the areas of the connecting plate and the mounting component on opposite sides are equal, and the interior of the rubber gasket and the insertion plate are provided with bolt holes that are compatible with the fixing bolts.

[0009] Furthermore, there are two rubber gaskets, which are respectively distributed on the front and back of the insertion plate, and both rubber gaskets are in contact with the inner wall of the mounting component.

[0010] Furthermore, the sum of the thicknesses of the insertion plate and the two rubber gaskets is equal to the inner diameter of the mounting component, and the length of the insertion plate is equal to the inner length of the mounting component.

[0011] Furthermore, the number of fixing bolts is four, and the four fixing bolts are evenly distributed on the front of the mounting component. The front and back of the mounting component are provided with through holes that are compatible with the fixing bolts.

[0012] Furthermore, a positioning rod extending into the insertion plate is fixedly connected to the inner bottom wall of the mounting component, and a positioning groove adapted to the positioning rod is provided inside the insertion plate.

[0013] Furthermore, both sides of the insertion plate are fixedly connected to extension blocks extending into the interior of the mounting component, and the inner wall of the mounting component is provided with sliding grooves that are adapted to the extension blocks.

[0014] Compared with the prior art, this utility model provides a stable and balanced structure for connecting fan blades, which has the following beneficial effects:

[0015] 1. This fan blade connection and stabilization structure, through the inclusion of mounting components and an insertion plate, allows the fan blade body to be installed onto the fan disc. Four fixing bolts secure the fan blade body to the mounting components and improve the stability of the fan blade installation. Rubber gaskets further enhance the balance of the fan blade body during high-speed rotation and provide a degree of noise reduction. 2. This fan blade connection and stabilization structure, with its positioning rods and slots, facilitates the positioning of the insertion plate. It also ensures the insertion plate is stable before the fixing bolts are installed, improving the efficiency of fan blade installation. This addresses the problem that fan blades are typically mounted on the fan disc, but this device does not mention the structure of the fan disc, leading to uncertainty about how to secure the fan blades and thus failing to meet production requirements. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A magnified structural diagram of structure A is shown below;

[0018] Figure 3 This is a three-dimensional view of the insertion plate of this utility model;

[0019] Figure 4 This is a three-dimensional structural view of the mounting component of this utility model;

[0020] Figure 5 This is a schematic diagram of the bolt clamp of this utility model.

[0021] In the diagram: 1 Fan wheel, 2 Fan blade body, 3 Mounting parts, 4 Connecting plate, 5 Insertion plate, 6 Rubber gasket, 7 Fixing bolt, 8 Bolt clip, 9 Bolt hole, 10 Positioning rod, 11 Positioning groove, 12 Extension block. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] Please see Figures 1 to 5This embodiment of a fan blade connection stabilization and balancing structure includes a fan wheel 1 and a fan blade body 2 disposed outside the fan wheel 1. A buffer fixing structure for mounting the fan blade body 2 is provided between the fan blade body 2 and the fan wheel 1. The buffer fixing structure includes a mounting member 3 fixedly connected to the side of the fan wheel 1 near the fan blade body 2. A connecting plate 4 is fixedly connected to the side of the fan blade body 2 near the mounting member 3. An insertion plate 5 extending into the mounting member 3 is fixedly connected to the side of the connecting plate 4 away from the fan blade body 2. A rubber gasket 6 is fixedly connected to the front of the insertion plate 5. A fixing bolt 7 that passes through both the rubber gasket 6 and the insertion plate 5 is threadedly connected to the front of the mounting member 3. A bolt clip 8 that can engage the fixing bolt 7 is slidably connected to the back of the mounting member 3.

[0025] The areas of the connecting plate 4 and the mounting part 3 on opposite sides are equal. The rubber gasket 6 and the insertion plate 5 are both provided with bolt holes 9 that are compatible with the fixing bolts 7. There are two rubber gaskets 6, which are distributed on the front and back of the insertion plate 5 respectively. Both rubber gaskets 6 are in contact with the inner wall of the mounting part 3. By setting the mounting part 3 and the insertion plate 5, the fan blade body 2 can be installed with the fan wheel 1. By setting four fixing bolts 7, the fan blade body 2 can be fixedly installed with the mounting part 3, and the stability of the fan blade body 2 installation can be improved.

[0026] It should be noted that the thickness of the insertion plate 5 and the two rubber gaskets 6 is equal to the inner diameter of the mounting part 3, the length of the insertion plate 5 is equal to the inner length of the mounting part 3, and there are four fixing bolts 7. The four fixing bolts 7 are evenly distributed on the front of the mounting part 3. The front and back of the mounting part 3 are provided with through holes that are compatible with the fixing bolts 7. By setting the rubber gaskets 6, the balance of the fan blade body 2 can be improved during the high-speed rotation of the fan blade body 2, and at the same time, it can play a certain role in noise reduction and buffering.

[0027] In this embodiment, extension blocks 12 extending into the interior of the mounting component 3 are fixedly connected to both the left and right sides of the insertion plate 5. A sliding groove adapted to the extension block 12 is provided on the inner wall of the mounting component 3. By setting the extension block 12 and the sliding groove, the stability between the insertion plate 5 and the mounting component 3 can be further improved before the fixing bolt 7 is installed.

[0028] Example 2:

[0029] Please see Figures 1 to 3 Based on Embodiment 1, it includes a positioning rod 10 that is fixedly connected to the inner bottom wall of the mounting component 3 and extends into the insertion plate 5. The insertion plate 5 has a positioning groove 11 that is adapted to the positioning rod 10.

[0030] In this embodiment, the length of the positioning rod 10 is equal to the length of the positioning groove 11.

[0031] By adopting the above technical solution, the positioning rod 10 and the positioning groove 1 are set to facilitate the positioning of the insertion plate 5. At the same time, the insertion plate 5 can be in a stable state before the workers install the fixing bolts 7, which improves the efficiency of installing the fan blade body 2.

[0032] The working principle of the above embodiments is as follows:

[0033] First, the worker inserts the insertion plate 5 on the fan blade body 2 into the mounting part 3. During the insertion process, the positioning groove 11 on the insertion plate 5 should be aligned with the positioning rod 10 inside the mounting part 3 until the insertion plate 5 is completely placed inside the mounting part 3. At this time, the connecting plate 4 should be in contact with the mounting part 3. Then, the worker rotates the fixing bolt 7 through the bolt hole 9 into the mounting part 3. When the other end of the fixing bolt 7 protrudes from the mounting part 3, the fixing bolt 7 can be fixed by using the bolt clip 8.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fan blade connection stabilization and balancing structure, comprising a fan disc (1) and a fan blade body (2) disposed outside the fan disc (1), characterized in that: A buffer fixing structure is provided between the fan blade body (2) and the fan wheel (1) to install the fan blade body (2); The buffer fixing structure includes a mounting part (3) fixedly connected to the fan wheel (1) on the side near the fan blade body (2). A connecting plate (4) is fixedly connected to the side of the fan blade body (2) near the mounting part (3). An insertion plate (5) extending into the mounting part (3) is fixedly connected to the side of the connecting plate (4) away from the fan blade body (2). A rubber gasket (6) is fixedly connected to the front of the insertion plate (5). A fixing bolt (7) that passes through both the rubber gasket (6) and the insertion plate (5) is threadedly connected to the front of the mounting part (3). A bolt clip (8) that can engage the fixing bolt (7) is slidably connected to the back of the mounting part (3).

2. The fan blade connection stability and balance structure according to claim 1, characterized in that: The areas of the connecting plate (4) and the mounting part (3) on opposite sides are equal, and the rubber gasket (6) and the insertion plate (5) are both provided with bolt holes (9) that are compatible with the fixing bolts (7).

3. The fan blade connection stability and balance structure according to claim 1, characterized in that: There are two rubber pads (6), which are distributed on the front and back of the insertion plate (5) respectively, and both rubber pads (6) are in contact with the inner wall of the mounting part (3).

4. The fan blade connection stability and balance structure according to claim 1, characterized in that: The thickness of the insert plate (5) and the two rubber pads (6) is equal to the inner diameter of the mounting part (3), and the length of the insert plate (5) is equal to the inner length of the mounting part (3).

5. The fan blade connection stability and balance structure according to claim 1, characterized in that: The number of fixing bolts (7) is four. The four fixing bolts (7) are evenly distributed on the front of the mounting part (3). The front and back of the mounting part (3) are provided with through holes that are compatible with the fixing bolts (7).

6. The fan blade connection stability and balance structure according to claim 1, characterized in that: The mounting component (3) has a positioning rod (10) that extends into the insertion plate (5) and is fixedly connected to the inner bottom wall of the mounting component (3). The insertion plate (5) has a positioning groove (11) that is compatible with the positioning rod (10).

7. The fan blade connection stability and balance structure according to claim 1, characterized in that: The insertion plate (5) has extension blocks (12) that extend into the interior of the mounting component (3) fixedly connected to both the left and right sides. The inner wall of the mounting component (3) is provided with sliding grooves that are compatible with the extension blocks (12).

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