Mounting structure of fan impeller

Abstract

The utility model relates to the technical field of fans, and discloses a fan impeller mounting structure which comprises a machine body, a mounting part is arranged in the machine body, according to the fan impeller mounting structure, after a connecting column rotates by a certain distance, and when a sliding block coincides with an embedding groove in position, a compressed spring can push the sliding block to be inserted into the embedding groove, and the fan impeller is mounted on the mounting part. When the positions of the sliding block and the embedding groove coincide, and the sliding block and the embedding groove are embedded, the transmission block and the transmission groove coincide at the same time, so that the transmission block fixedly connected with the surface of the output shaft of the motor can be just embedded into the transmission groove, connection is completed, and the position of the impeller does not need to be repeatedly adjusted back and forth; the compressed spring abuts against the sliding block, the transmission block and the transmission groove can be aligned in position through slow rotation in the single direction, then connection is completed, and position deviation generated when the impeller is manually adjusted to be connected with the output shaft of the motor through naked eyes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a mounting structure of a fan impeller. Background Art

[0002] The fan impeller refers to the rotating part of the fan, which is composed of multiple curved blades. The main function of the fan impeller is to convert wind energy into mechanical energy, which in turn drives the fan to operate. Different fan efficiencies and operating characteristics can be achieved according to the different designs of the impeller. Common fan impellers include centrifugal, axial flow, mixed flow, etc. Centrifugal impellers are suitable for low flow and high pressure occasions, axial flow impellers are suitable for large flow and low pressure occasions, and mixed flow impellers are a combination of the two, with the characteristics of medium flow and medium pressure.

[0003] When installing the existing impeller and the output shaft of the motor, it is first necessary to align the through hole of the impeller with the output shaft of the motor and insert the output shaft of the motor into the impeller, and then it is necessary to rotate the impeller to adjust the groove on the inside of the impeller to engage with the transmission block of the motor output shaft. However, during the actual installation process, the staff needs to repeatedly rotate the impeller to align the transmission hole opened on the inside of the impeller with the transmission block of the motor output shaft to ensure that the impeller can be penetrated by the output shaft of the motor. After the connection, the staff will also insert a fitting strip between the motor output shaft and the impeller through hole, and embed the fitting strip by knocking to ensure that the output shaft of the motor and the impeller are stably connected. While the docking has no auxiliary function, once the fitting strip is knocked and inserted, it is not easy to remove, which makes the impeller inconvenient to disassemble and maintain. Utility Model Content

[0004] The purpose of the utility model is to provide a fan impeller installation structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a fan impeller installation structure, comprising a body, wherein a mounting portion is provided inside the body, and the mounting portion comprises:

[0006] A chassis, the chassis is fixedly connected to the surface of the body, a motor is fixedly connected to the inner wall of the chassis, an output shaft of the motor passes through the body and is rotatably connected, a transmission block is fixedly connected to the surface of the output shaft of the motor, and an engaging groove is provided on the output shaft of the motor;

[0007] An impeller, wherein the output shaft of the motor penetrates the impeller, a through hole is provided on the inner side of the impeller, and the entire impeller is pressed toward the motor, so that the impeller drives the connecting column to move toward the output shaft of the motor, and the inner side of the impeller is fixedly connected with the connecting column;

[0008] A transmission groove is provided on the inner side of the connecting column, a sliding groove is provided on the inner side of the connecting column, a sliding block is slidably connected to the inner side of the sliding groove, if the engaging groove and the sliding block are not aligned, the edge of the output shaft of the motor will contact the bottom of the sliding block, thereby causing the sliding block to retract into the inner side of the sliding groove.

[0009] Preferably, a pull rod is fixedly connected to the top surface of the sliding block, and the pull rod passes through the connecting column and is slidably connected. When the sliding block contracts, the spring will be compressed, and the sliding block will push the pull rod to lift the pull ring.

[0010] Preferably, a pull ring is fixedly connected to the top surface of the pull rod. When removing the installation, the pull ring is pulled upward, and the pull ring drives the pull rod to pull up the sliding block, thereby gradually removing the impeller.

[0011] Preferably, a spring is fixedly connected to the top surface of the sliding block, and one end of the spring away from the sliding block is fixedly connected to the inner side of the sliding groove.

[0012] Preferably, the cross section of the sliding block is the same as the shape of the fitting groove, and the entire impeller is rotated to make the impeller drive the connecting column to rotate, and the compressed spring will push the sliding block to be inserted into the fitting groove.

[0013] Preferably, the cross section of the transmission block is the same as the shape of the transmission groove, and when the sliding block coincides with and is engaged with the engaging groove, the transmission block also coincides with the transmission groove.

[0014] Compared with the prior art, the utility model provides a fan impeller installation structure, which has the following beneficial effects:

[0015] 1. The installation structure of the fan impeller is that after the connecting column rotates a certain distance and the position of the sliding block coincides with the fitting groove, the compressed spring will push the sliding block to insert into the fitting groove and make the sliding block fit with the fitting groove. When the position of the sliding block coincides with the fitting groove and fits, the transmission block also coincides with the transmission groove, so that the transmission block fixedly connected to the surface of the motor output shaft can just fit into the transmission groove, thereby completing the connection. There is no need to repeatedly adjust the position of the impeller back and forth. The compressed spring resists the sliding block and slowly rotates in one direction to align the transmission block with the transmission groove, thereby completing the connection. This avoids the position deviation caused by manual adjustment of the connection between the impeller and the output shaft of the motor by the naked eye.

[0016] 2. The installation structure of the fan impeller is that when removing the installation, the pull ring is pulled upwards, and the pull ring drives the pull rod to pull up the sliding block. When the pull rod pulls up the sliding block to a certain extent, the spring will be compressed to the limit and drive the entire connecting column away from the inside of the body, so that the impeller is gradually removed, so that the sliding block can assist in positioning the impeller and the output shaft of the motor when they are connected during installation and disassembly, making disassembly and installation more convenient, accurate and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the machine body of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the body of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the chassis of the utility model;

[0021] Figure 5 This is a schematic diagram of the enlarged structure of the impeller of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the connecting column of the utility model;

[0023] Figure 7 It is a schematic diagram of the enlarged cross-sectional structure of the connecting column of the utility model.

[0024] In the figure: 1, body; 2, mounting part; 21, chassis; 22, motor; 23, transmission block; 24, fitting groove; 25, impeller; 26, through hole; 27, connecting column; 28, transmission groove; 29, sliding groove; 210, pull rod; 211, sliding block; 212, spring; 213, pull ring. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 7 As shown, the utility model provides a technical solution: a fan impeller installation structure, including a body 1, an installation part 2 is arranged inside the body 1, and the installation part 2 includes: a chassis 21, a motor 22, a transmission block 23, an interlocking groove 24, an impeller 25, a through hole 26, a connecting column 27, a transmission groove 28, a sliding groove 29, a pull rod 210, a sliding block 211, a spring 212, and a pull ring 213.

[0026] The chassis 21 is fixedly connected to the surface of the body 1, and the inner wall of the chassis 21 is fixedly connected with a motor 22. The output shaft of the motor 22 penetrates the body 1 and is rotatably connected. The surface of the output shaft of the motor 22 is fixedly connected with a transmission block 23. The output shaft of the motor 22 is provided with a fitting groove 24, and the impeller 25 is penetrated by the output shaft of the motor 22. A through hole 26 is provided on the inner side of the impeller 25. When the impeller 25 is installed, the output shaft of the motor 22 is aligned with the through hole 26 and the output shaft of the motor 22 is passed through the through hole 26, and the entire impeller 25 is pressed toward the direction of the motor 22, so that the impeller 25 drives the connecting column 27 to rotate. The motor 22 moves in the same direction as the output shaft direction. The inner side of the impeller 25 is fixedly connected with a connecting column 27. The transmission groove 28 is provided on the inner side of the connecting column 27. A sliding groove 29 is provided on the inner side of the connecting column 27. A sliding block 211 is slidably connected to the inner side of the sliding groove 29. If the interlocking groove 24 is not aligned with the sliding block 211, the edge of the output shaft of the motor 22 will contact the bottom of the sliding block 211, thereby causing the sliding block 211 to retract into the inner side of the sliding groove 29. When the sliding block 211 retracts, the spring 212 is compressed, and the sliding block 211 pushes the pull rod 210 to lift the pull ring 213. The top surface of the sliding block 211 is fixedly connected with a pull rod 210. The pull rod 210 passes through the connecting column 27 and is slidably connected. When the sliding block 211 retracts, the spring 212 is compressed, and the sliding block 211 pushes the pull rod 210 to lift the pull ring 213. The top surface of the pull rod 210 is fixedly connected with a pull ring 213. When removing the installation, the pull ring 213 is pulled upward, and the pull rod 210 is driven by the pull ring 213 to pull up the sliding block 211. When the pull rod 210 pulls up the sliding block 211 to a certain extent, the spring 212 is compressed to the limit and the entire connecting column 27 is driven away from the inner side of the body 1, so that the impeller 25 is gradually removed. The top surface of the sliding block 211 is fixedly connected with a spring 212, and one end of the spring 212 away from the sliding block 211 is fixedly connected to the inner side of the sliding groove 29. The cross section of the sliding block 211 is the same as the shape of the fitting groove 24. The entire impeller 25 is rotated to drive the connecting column 27 to rotate. When the connecting column 27 rotates, it drives the sliding block 211 to rotate together through the pull rod 210. After the connecting column 27 rotates a certain distance, and the position of the sliding block 211 coincides with the fitting groove 24, the compressed spring 212 pushes the sliding block 211 to insert into the fitting groove 24. The cross section of the transmission block 23 is the same as the shape of the transmission groove 28. When the position of the sliding block 211 coincides with the fitting groove 24 and is fitted, the transmission block 23 also coincides with the position of the transmission groove 28, so that the transmission block 23 fixedly connected to the output shaft surface of the motor 22 can be just embedded in the transmission groove 28, thereby completing the connection.

[0027] Based on the above embodiment, when the impeller 25 is installed, the output shaft of the motor 22 is aligned with the through hole 26 and the output shaft of the motor 22 passes through the through hole 26, and the entire impeller 25 is pressed in the direction of the motor 22, so that the impeller 25 drives the connecting column 27 to move in the direction of the output shaft of the motor 22. If the engaging groove 24 is not aligned with the sliding block 211, the edge of the output shaft of the motor 22 will contact the bottom of the sliding block 211, so that the sliding block 211 is retracted into the inner side of the sliding groove 29, and when the sliding block 211 is retracted The spring 212 will be compressed, and the sliding block 211 will push the pull rod 210 to lift the pull ring 213. At this time, the entire impeller 25 is rotated, so that the impeller 25 drives the connecting column 27 to rotate. When the connecting column 27 rotates, it drives the sliding block 211 to rotate together through the pull rod 210. After the connecting column 27 rotates a certain distance, and the position of the sliding block 211 coincides with the fitting groove 24, the compressed spring 212 will push the sliding block 211 to insert into the fitting groove 24, and the sliding block 211 is fitted with the fitting groove 24. When the sliding block 211 and the engaging groove 24 are coincident and engaged, the transmission block 23 also coincides with the transmission groove 28, so that the transmission block 23 fixedly connected to the output shaft surface of the motor 22 can be just embedded in the transmission groove 28, thereby completing the connection, and there is no need to repeatedly adjust the position of the impeller 25 back and forth. The compressed spring 212 resists the sliding block 211, and the transmission block 23 can be aligned with the transmission groove 28 by slowly rotating in one direction, thereby completing the connection, avoiding the manual adjustment of the impeller 25 and the output shaft of the motor 22 by the naked eye. The position deviation generated when the output shaft is connected can be removed by pulling up the pull ring 213 during installation. The pull ring 213 drives the pull rod 210 to pull up the sliding block 211. When the pull rod 210 pulls up the sliding block 211 to a certain extent, the spring 212 is compressed to the limit and drives the entire connecting column 27 away from the inner side of the body 1, thereby gradually removing the impeller 25. During installation and disassembly, the sliding block 211 can assist in positioning the impeller 25 and the output shaft of the motor 22 when connected, making disassembly and installation more convenient, accurate and efficient.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A fan impeller mounting structure, comprising a body (1), characterized in that: The body (1) is provided with a mounting portion (2) inside, and the mounting portion (2) comprises: A chassis (21), the chassis (21) being fixedly connected to the surface of the body (1), a motor (22) being fixedly connected to the inner wall of the chassis (21), an output shaft of the motor (22) passing through the body (1) and being rotatably connected, a transmission block (23) being fixedly connected to the surface of the output shaft of the motor (22), and an engaging groove (24) being provided on the output shaft of the motor (22); An impeller (25), wherein the output shaft of the motor (22) penetrates the impeller (25), a through hole (26) is provided on the inner side of the impeller (25), and a connecting column (27) is fixedly connected to the inner side of the impeller (25); A transmission groove (28) is provided on the inner side of the connecting column (27), a sliding groove (29) is provided on the inner side of the connecting column (27), and a sliding block (211) is slidably connected to the inner side of the sliding groove (29).

2. The fan impeller installation structure according to claim 1, characterized in that: A pull rod (210) is fixedly connected to the top surface of the sliding block (211), and the pull rod (210) passes through the connecting column (27) and is slidably connected.

3. The fan impeller installation structure according to claim 2, characterized in that: A pull ring (213) is fixedly connected to the top surface of the pull rod (210).

4. The fan impeller installation structure according to claim 1, characterized in that: A spring (212) is fixedly connected to the top surface of the sliding block (211), and one end of the spring (212) away from the sliding block (211) is fixedly connected to the inner side of the sliding groove (29).

5. The fan impeller installation structure according to claim 1, characterized in that: The cross section of the sliding block (211) is the same shape as the fitting groove (24).

6. The fan impeller installation structure according to claim 1, characterized in that: The cross section of the transmission block (23) is the same shape as the transmission groove (28).

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