Three-rotating-rod quick disassembly and assembly type anti-dragging structure and fly repelling fan

Abstract

The utility model discloses a three-rotating-rod quick disassembly and assembly type anti-dragging structure and a fly repelling fan. The three-rotating-rod quick disassembly and assembly type anti-dragging structure comprises a motor shell and an installation disc. The motor shell is formed by connecting and fixing an upper shell and a lower shell, and a driving motor is arranged in the motor shell; a through hole is formed in the center of the lower shell; the output end of the driving motor is exposed outside the through hole and is fixed with the mounting disc; a fixing cylinder is arranged at the center of the mounting disc in an upward extending mode and connected with the output end of the driving motor. The mounting disc main body is circular, three groups of hollowed-out cavities are uniformly formed in the mounting disc main body in a surrounding manner, circular fixing grooves are formed between the three groups of hollowed-out cavities and the fixing cylinder, limiting strips are arranged on the outer sides of the hollowed-out cavities, and notches are formed in the middles of the limiting strips; a limiting ring is arranged at the top of the mounting disc; a limiting groove is formed in the lower part of the limiting ring positioned in the hollow cavity; a rotating rod is arranged among the circular fixing groove, the limiting groove and the notch. By means of the buckle type structure, the fan blades are convenient to disassemble and assemble, meanwhile, the limiting grooves and the notches are formed, and the stability of the fan blades can be effectively improved after the fan blades are fixed.

Description

Technical Field

[0001] This utility model relates to the field of fan manufacturing, and in particular to a three-rotor quick-release anti-pull structure and a fly-repellent fan. Background Technology

[0002] In the existing technology field of mosquito repellent fans, some fan blades are generally fixed with bolts. This requires the removal of a large number of bolts when replacing the rotating rod or maintaining the equipment, which not only consumes a lot of time and effort but also increases maintenance costs, making it difficult to meet users' needs for convenient maintenance. A search revealed that a Chinese patent with authorization announcement number CN221299582U discloses a ceiling fan with foldable blades, in which the fan blades are connected to the main body with bolts, making the disassembly and installation process relatively complicated. Secondly, some fan blades are fixed only by simple clips or flat surfaces. During the operation of the mosquito repellent fan, the rotating rod is very prone to loosening and displacement due to its own vibration or slight external pulling. In severe cases, it may even fall off, causing the mosquito repellent fan to malfunction and posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a three-rotor quick-release anti-pull structure and fly repellent fan that is easy to assemble and disassemble and prevents falling off.

[0004] The purpose of this utility model is achieved as follows: a three-rotor quick-release anti-pull structure includes a motor housing and a mounting plate placed at the bottom of the motor housing; the motor housing consists of an upper housing and a lower housing connected and fixed by bolts, and a drive motor is installed inside the motor housing; a through hole is provided at the center of the lower housing, and the output end of the drive motor protrudes outside the through hole and is fixed to the mounting plate; a fixing cylinder extends upward from the center of the mounting plate, and the fixing cylinder is connected to the output end of the drive motor; the main body of the mounting plate is circular, and three sets of hollow cavities are evenly distributed around the main body of the mounting plate, and a circular fixing groove is provided between the three sets of hollow cavities and the fixing cylinder; a limiting strip is provided on the outside of the hollow cavity, and a notch is provided in the middle of the limiting strip; a limiting ring is provided at the top of the mounting plate, and a limiting groove is provided below the limiting ring located in the hollow cavity; a rotating rod is provided between the circular fixing groove, the limiting groove, and the notch.

[0005] Preferably, one end of the inner side of the rotating rod is provided with a circular end, which is matched with a circular fixing groove for limiting.

[0006] Preferably, an arc-shaped notch is provided between the circular fixing groove and the hollow cavity, the arc-shaped notch cooperates with the rotating rod body, and an enlarged opening is provided on the outside of the arc-shaped notch.

[0007] Preferably, the upper side of the notch in the middle of the limiting strip is provided with an arc-shaped limiting part, and the lower side is provided with a guiding part, and the arc-shaped limiting part fits with the main body of the rotating rod.

[0008] Preferably, the output end of the drive motor is provided with an external thread. After the output end of the drive motor is inserted into the fixed cylinder, a nut is provided at the bottom of the fixed cylinder to limit and fix it to the mounting plate.

[0009] A fly-repellent fan includes the aforementioned three-rotor quick-release anti-pull structure.

[0010] Compared with the prior art, the advantages of this utility model are:

[0011] 1. The fixing method adopts a pressure plate and threaded connection. The rotating rod assembly can be quickly disassembled and assembled by rotating the pressure plate without complicated tools and operations. At the same time, each rotating rod is fixed to the mounting plate by snap-fit. Compared with the traditional fixing structure, it greatly shortens the time for maintenance and replacement of parts, and facilitates users' daily cleaning, inspection and replacement of damaged rotating rods.

[0012] 2. The rotating rod is limited by notches, arc-shaped notches, arc sections, and circular fixing grooves, forming a multi-dimensional stable fixation. Even if it encounters external forces such as accidental pulling, the rotating rod is not easy to loosen or shift. The motor output end is fixed to the mounting plate with bolts, making the connection structure more stable. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the back structure of the fixing plate of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the mounting plate of this utility model after the rotating rod is installed.

[0016] Figure 4 for Figure 1 A schematic diagram of the structure at point A in the middle.

[0017] Among them, 1 is the motor housing, 101 is the upper housing, 102 is the lower housing, 2 is the mounting plate, 201 is the fixing cylinder, 202 is the hollow cavity, 203 is the circular fixing groove, 2031 is the arc-shaped notch, 2032 is the enlarged opening, 204 is the limiting strip, 2041 is the notch, 20411 is the arc-shaped limiting part, 20412 is the guide part, 205 is the limiting ring, 2051 is the limiting groove, 3 is the rotating rod, and 301 is the circular end. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0019] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-4 As shown, a three-rotor quick-release anti-pull structure includes a motor housing 1 and a mounting plate 2 placed at the bottom of the motor housing. The motor housing 1 consists of an upper housing 101 and a lower housing 102 fixedly connected by bolts, and a drive motor is installed inside the motor housing 1. The lower housing 102 has a through hole at its center, and the output end of the drive motor protrudes outside the through hole and is fixed to the mounting plate 2. A fixing cylinder 201 extends upward from the center of the mounting plate 2 and is connected to the output end of the drive motor. The main body of the mounting plate 2 is circular. The mounting plate 2 has three sets of hollow cavities 202 evenly distributed around its main body. A circular fixing groove 203 is provided between the three sets of hollow cavities 202 and the fixing cylinder 201. A limiting strip 204 is provided on the outside of the hollow cavity 202, and a notch 2041 is provided in the middle of the limiting strip 204. A limiting ring 205 is provided at the top of the mounting plate 2, and a limiting groove 2051 is provided at the lower part of the limiting ring 205 located in the hollow cavity 202. A rotating rod 3 is provided between the circular fixing groove 203, the limiting groove 2021, and the notch 2041.

[0022] like Figure 1 , 3As shown, a circular end 301 is provided on one end of the inner side of the rotating rod 3. The circular end 301 is matched with the circular fixing groove 203 to further realize the stability after installation.

[0023] like Figure 1-3 As shown, an arc-shaped notch 2031 is provided between the circular fixing groove 203 and the hollow cavity 202. The arc-shaped notch 2031 cooperates with the main body of the rotating rod 3. An enlarged opening 2032 is provided on the outside of the arc-shaped notch 2031. The arc-shaped notch can better fit the shape of the rotating rod and effectively prevent the rotating rod from radially displacing or loosening during the operation of the mosquito repellent fan. The enlarged opening makes it easy for the circular end of the rotating rod to be inserted into the top of the circular fixing groove.

[0024] like Figure 1-2 As shown, the upper side of the notch 2041 in the middle of the limiting strip 204 is provided with an arc-shaped limiting part 20411, and the lower side is provided with a guide part 2042. The arc-shaped limiting part 20411 fits into the main body of the rotating rod 3. After the circular end is inserted into the circular fixing groove, the rotating rod is rotated upward so that the main body of the rotating rod and the guide part cooperate, squeezing the limiting strip to deform, and further guiding the main body of the rotating rod into the arc-shaped limiting part to complete the installation.

[0025] like Figure 1 As shown, the output end of the drive motor is provided with an external thread. After the output end of the drive motor is inserted into the fixed cylinder, a nut (not shown in the figure) is set at the bottom of the fixed cylinder to limit and fix it to the mounting plate. The motor and the mounting plate are fixed with bolts, which makes the structure more stable and the connection strength higher. It can withstand the torque and vibration generated when the mosquito repellent fan is running, and the motor and the mounting plate will not fall off.

[0026] A fly-repellent fan includes the aforementioned three-rotor quick-release anti-pull structure.

[0027] When assembling this utility model's three-rotor detachable anti-pull mosquito repellent fan, the drive motor is installed inside the motor housing. The output end is connected to the fixing cylinder of the mounting plate through the through hole in the lower housing and secured with bottom bolts to ensure stable power transmission. When installing the rotating rods, insert the round ends of the three rods into the round fixing slots and rotate the rods upwards. This causes the rod body to engage with the guide part, compressing the limiting strip and deforming it. This further guides the rod body into the arc-shaped limiting part, completing the installation. Installation is quick and easy, requiring no disassembly of parts.

[0028] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A three-rotor quick-release anti-pull structure, characterized in that, The device includes a motor housing and a mounting plate located at the bottom of the motor housing. The motor housing consists of an upper and lower housing connected and fixed by bolts, and a drive motor is installed inside the motor housing. A through hole is provided at the center of the lower housing, and the output end of the drive motor protrudes outside the through hole and is fixed to the mounting plate. A fixing cylinder extends upward from the center of the mounting plate and is connected to the output end of the drive motor. The main body of the mounting plate is circular, and three sets of hollow cavities are evenly distributed around the main body of the mounting plate. A circular fixing groove is provided between the three sets of hollow cavities and the fixing cylinder. A limiting strip is provided on the outside of the hollow cavities, and a notch is provided in the middle of the limiting strip. A limiting ring is provided at the top of the mounting plate, and a limiting groove is provided below the limiting ring located in the hollow cavity. A rotating rod is provided between the circular fixing groove, the limiting groove, and the notch.

2. The three-rotor quick-release anti-pull structure according to claim 1, characterized in that, The inner end of the rotating rod is provided with a circular end, which is matched with a circular fixing groove for limiting.

3. The three-rotor quick-release anti-pull structure according to claim 1, characterized in that, An arc-shaped notch is provided between the circular fixing groove and the hollow cavity. The arc-shaped notch cooperates with the rotating rod body, and an enlarged opening is provided on the outside of the arc-shaped notch.

4. The three-rotor quick-release anti-pull structure according to claim 1, characterized in that, The upper side of the notch in the middle of the limiting strip is provided with an arc-shaped limiting part, and the lower side is provided with a guiding part. The arc-shaped limiting part fits into the main body of the rotating rod.

5. The three-rotor quick-release anti-pull structure according to claim 1, characterized in that, The output end of the drive motor is provided with an external thread. After the output end of the drive motor is inserted into the fixed cylinder, a nut is provided at the bottom of the fixed cylinder to limit and fix it to the mounting plate.

6. A fly-repelling fan, characterized in that, Includes the three-rotor quick-release anti-pull structure as described in any one of claims 1 to 5.

Images