CN221896841U - Axial flow fan with easy-to-disassemble rotor blades - Google Patents

Abstract

The utility model discloses an axial flow fan convenient to detach a rotating blade, which belongs to the technical field of axial flow fans, and the technical scheme is characterized by comprising a machine shell, wherein a driving device is fixedly connected to the bottom of the inner wall of the machine shell, an output end of the driving device is movably connected with a mounting disc, the surface of the mounting disc is fixedly connected with a mounting block, a connecting component is arranged in the mounting block, the front side of the connecting component is fixedly connected with a rotating blade main body, through the arrangement of the connecting component, a connecting block can enter a groove at the front side of the mounting disc, a clamping block can be clamped in a limiting groove, the limiting groove can have the limiting effect on the clamping block, so that the rotating blade main body can be supported and limited, when the rotating blade is required to be detached, the L-shaped block is driven by extrusion pressing the pressing block to drive the clamping block to reset, so that the connecting block can be taken out from the inside of the mounting disc, the effect of quick dismounting is achieved, and the subsequent maintenance on the rotating blade is convenient.

Description

Axial flow fan with easy-to-disassemble rotor blades

Technical Field

The utility model relates to the technical field of axial flow fans, in particular to an axial flow fan with conveniently disassembled rotor blades.

Background Art

Axial flow fans, also known as local ventilators, are a type of fan commonly used in industrial and mining enterprises. Axial flow fans are mainly composed of fan impellers and casings. Axial flow fans can be divided into steel fans, anti-corrosion fans, PVC fans, and stainless steel fans. Axial flow fans are usually used in situations where flow requirements are high and pressure requirements are low. They can be used for ventilation or enhanced heat dissipation in metallurgy, chemical industry, light industry, food, medical equipment, mechanical equipment, and civil buildings. The rotor is the fan blade of the axial flow fan.

The rotor blades of existing axial flow fans are generally fixed by riveting. When the rotor blades need to be removed, this fixing method requires the use of external tools at the riveted joints for convenient removal. Therefore, it is inconvenient for users to remove them alone, which is not conducive to subsequent maintenance of the rotor blades of the axial flow fan.

Utility Model Content

The utility model provides an axial flow fan with easy-to-remove rotor blades, aiming to solve the problem that the rotor blades of the existing axial flow fans are generally fixed by riveting. When the rotor blades need to be removed, this fixing method requires the use of external tools at the riveted parts for convenient disassembly. Therefore, it is inconvenient for the user to disassemble it alone, which affects the subsequent maintenance of the rotor blades of the axial flow fan.

The utility model is implemented as follows: an axial flow fan for easy removal of rotor blades comprises a casing, a driving device is fixedly connected to the bottom of the inner wall of the casing, a mounting plate is movably connected to the output end of the driving device, a mounting block is fixedly connected to the surface of the mounting plate, a connecting assembly is arranged inside the mounting block, and a rotor blade body is fixedly connected to the front side of the connecting assembly;

The connecting assembly includes a connecting block, a telescopic rod, a return spring and a clamping block. The interior of the connecting block is set as a cavity. The telescopic rod is movably connected to the interior of the connecting block. The clamping block is fixedly connected to the top of the telescopic rod. The return spring is sleeved on the surface of the telescopic rod, and the return spring is fixedly connected to the connecting block and the clamping block on one side thereof.

In order to facilitate the reset of the card block, as a preferred axial flow fan of the utility model for easy removal of the rotor blades, the bottom of the telescopic rod is fixedly connected to an L-shaped rod, and the right side of the top of the L-shaped rod is fixedly connected to a pressing block.

In order to achieve the effect of supporting and limiting the mounting plate, as a preferred axial flow fan of the utility model that is easy to disassemble the rotor blades, a slot is provided at the bottom of the mounting plate, and a key block is fixedly connected to the surface of the output end of the drive device, and the key block is used in conjunction with the slot.

In order to achieve the effect that the clamping block can be used in conjunction with the limiting groove, as a preferred axial flow fan of the utility model that is easy to disassemble the rotor blades, a groove is provided on the front side of the mounting block, and limiting grooves are provided on the top and bottom of the groove, and the clamping block is movably connected inside the limiting groove.

In order to achieve the effect of limiting the top of the mounting plate, as a preferred axial flow fan of the utility model that is easy to disassemble the rotor blades, the surface of the top end of the output end of the driving device is provided with a thread, and the surface of the thread is threadedly connected to a limiting sleeve.

In order to achieve the effect of not affecting the normal use of the connecting component, as a preferred axial flow fan with easy-to-remove rotor blades of the utility model, the L-shaped rod is arranged inside the connecting block, the pressing block is movably connected inside the connecting block and its top end is located outside the connecting block.

In order to achieve the effect that the connecting block can smoothly enter the interior of the mounting plate, as a preferred embodiment of the utility model of an axial flow fan that is easy to remove the rotor blades, the area of the front side of the groove is larger than the area of the rear side of the connecting block.

Compared with the prior art, the beneficial effects of the utility model are:

The axial flow fan with easy-to-remove rotor blades is provided with a driving device, which can drive the rotor blade body to rotate, so that a low-temperature airflow can be generated to achieve the effect of cooling and heat dissipation. By providing a connecting component, the connecting block can enter the groove on the front side of the mounting plate. When the clamping block moves to the limiting groove, the squeezing force of the top and bottom of the clamping block by the inner wall of the groove will disappear, and then the two clamping blocks will move in opposite directions under the elastic force of their respective corresponding reset springs, so that the clamping block can be clamped in the inside of the limiting groove, and the limiting groove can limit the clamping block, thereby supporting and limiting the rotor blade body. When the rotor blade body needs to be disassembled, the extrusion and pressing block will drive the L-shaped block to drive the clamping block to reset, so that the connecting block can be taken out from the inside of the mounting plate, achieving the effect of quick disassembly and assembly, and facilitating subsequent maintenance of the rotor blade body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is an overall structural diagram of an axial flow fan with easily disassembled rotor blades according to the present invention;

FIG2 is a schematic diagram of the connection between the drive device and the connecting assembly in the utility model;

FIG3 is a schematic structural diagram of the main body of the transfer blade of the utility model;

FIG4 is a schematic diagram of the connection between the mounting plate and the output end of the driving device in the present invention;

FIG5 is a schematic diagram of the structure of the output end of the drive device in the utility model;

FIG6 is a bottom view of the mounting plate of the present invention;

FIG. 7 is a schematic diagram of the connection of the connection group, the L-shaped rod and the pressing block in the utility model

FIG8 is an enlarged schematic diagram of point A in FIG3 of the present invention.

In the figure, 1, housing; 2, driving device; 3, mounting plate; 4, mounting block; 5, connecting assembly; 501, connecting block; 502, telescopic rod; 503, reset spring; 504, clamping block; 6, rotor body; 7, L-shaped rod; 8, pressing block; 9, clamping slot; 10, key block; 11, groove; 12, limit slot; 13, limit sleeve.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

Please refer to Figures 1-8. The utility model provides a technical solution: an axial flow fan with easy-to-remove rotor blades, comprising a casing 1, a driving device 2 is fixedly connected to the bottom of the inner wall of the casing 1, an output end of the driving device 2 is movably connected to a mounting plate 3, a mounting block 4 is fixedly connected to the surface of the mounting plate 3, a connecting component 5 is arranged inside the mounting block 4, and a rotor blade body 6 is fixedly connected to the front side of the connecting component 5;

The connecting assembly 5 includes a connecting block 501, a telescopic rod 502, a return spring 503 and a clamping block 504. The interior of the connecting block 501 is set as a cavity. The telescopic rod 502 is movably connected to the interior of the connecting block 501. The clamping block 504 is fixedly connected to the top of the telescopic rod 502. The return spring 503 is sleeved on the surface of the telescopic rod 502, and the return spring 503 is fixedly connected to the connecting block 501 and the clamping block 504 on one side thereof.

In this embodiment: by setting the connecting component 5, the connecting block 501 can enter the groove 11 on the front side of the mounting plate 3, and when the block 504 moves to the limiting groove 12, the squeezing force of the top and bottom of the block 504 by the inner wall of the groove 11 will disappear, and then the two blocks 504 will move in opposite directions under the elastic force of their respective corresponding reset springs 503, so that the block 504 can be clamped in the inside of the limiting groove 12, and the limiting groove 12 can limit the block 504, so that the rotating blade body 6 can be supported and limited. When the rotating blade body 6 needs to be disassembled, the squeezing and pressing block 8 will drive the L-shaped block to drive the block 504 to reset, so that the connecting block 501 can be taken out from the inside of the mounting plate 3, thereby achieving the effect of quick disassembly and assembly.

As a technical optimization solution of the present invention, the bottom of the telescopic rod 502 is fixedly connected with an L-shaped rod 7 , and the right side of the top of the L-shaped rod 7 is fixedly connected with a pressing block 8 .

In this embodiment: by providing an L-shaped rod 7 and a pressing block 8, when the rotor body 6 needs to be disassembled, squeezing the pressing block 8 will drive the L-shaped block and the clamping block 504 to reset, so that the connecting block 501 can be taken out from the groove 11 inside the mounting plate 3.

As a technical optimization solution of the utility model, a card slot 9 is provided at the bottom of the mounting plate 3 , and a key block 10 is fixedly connected to the surface of the output end of the driving device 2 , and the key block 10 is used in conjunction with the card slot 9 .

In this embodiment: by providing the card slot 9 and the key block 10, the card slot 9 can support and limit the key block 10, so that the mounting plate 3 will not slide on the surface of the output end of the driving device 2, thereby improving the stability during use.

As a technical optimization solution of the utility model, a groove 11 is provided on the front side of the mounting block 4 , and limiting grooves 12 are provided on the top and bottom of the groove 11 , and the clamping block 504 is movably connected inside the limiting groove 12 .

In this embodiment: by setting the groove 11 and the limiting groove 12, the groove 11 can facilitate the connection between the connecting component 5 and the mounting plate 3, and the limiting groove 12 can be used in conjunction with the clamping block 504, so that the position of the connecting block 501 can be limited, thereby limiting the connecting component 5, thereby improving the stability during use.

As a technical optimization solution of the utility model, a thread is provided on the surface of the top end of the output end of the driving device 2, and the surface of the thread is threadedly connected to the limiting sleeve 13.

In this embodiment, by providing a limiting sleeve 13, the limiting sleeve 13 can be threadedly connected to the output end of the driving device 2, so that the limiting sleeve 13 can limit the top of the mounting plate 3, further improving the stability during use.

As a technical optimization solution of the present invention, the L-shaped rod 7 is arranged inside the connecting block 501 , and the pressing block 8 is movably connected inside the connecting block 501 with its top end located outside the connecting block 501 .

In this embodiment, through the above arrangement, the L-shaped rod 7 and the pressing block 8 can be arranged inside the connecting block 501 to avoid affecting the normal use of the connecting component 5.

As a technical optimization solution of the present invention, the area of the front side of the groove 11 is larger than the area of the rear side of the connecting block 501 .

In this embodiment, through the above arrangement, the connecting block 501 can smoothly enter the interior of the groove 11, thereby improving the convenience during use.

Working principle: First, the mounting plate 3 is sleeved on the surface of the output end of the driving device 2 so that the key block 10 can be snapped into the inside of the slot 9, and then the connecting block 501 is placed into the inside of the groove 11. When the block 504 moves to the limit slot 12, the top and bottom of the block 504 are squeezed by the inner wall of the groove 11 and the pressure will disappear. Then, the two blocks 504 will move in opposite directions under the elastic force of their respective corresponding reset springs 503, so that the block 504 can be snapped into the inside of the limit slot 12. The limit slot 12 can limit the block 504, so that the rotor body 6 can be supported and limited, and the axial flow fan can operate normally. When the rotor body 6 needs to be disassembled, the pressing block 8 is squeezed, and the pressing block 8 will drive the L-shaped rod 7 to move downward. When the L-shaped rod 7 moves downward, it will drive the block 504 to move downward, so that the block 504 will be separated from the limit slot 12, and then the block 504 can be moved out of the groove 11.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An axial flow fan with easily removable rotor blades, comprising a casing (1), characterized in that: a driving device (2) is fixedly connected to the bottom of the inner wall of the casing (1), an output end of the driving device (2) is movably connected to a mounting plate (3), a mounting block (4) is fixedly connected to the surface of the mounting plate (3), a connecting component (5) is arranged inside the mounting block (4), and a rotor blade body (6) is fixedly connected to the front side of the connecting component (5); The connection assembly (5) comprises a connection block (501), a telescopic rod (502), a return spring (503) and a clamping block (504); the interior of the connection block (501) is arranged as a cavity; the telescopic rod (502) is movably connected to the interior of the connection block (501); the clamping block (504) is fixedly connected to the top of the telescopic rod (502); the return spring (503) is sleeved on the surface of the telescopic rod (502); and the return spring (503) is fixedly connected to the connection block (501) and the clamping block (504) on one side thereof; the bottom of the telescopic rod (502) is fixedly connected to an L-shaped rod (7); the right side of the top of the L-shaped rod (7) is fixedly connected to a pressing block (8); a groove (11) is provided on the front side of the mounting block (4); a limiting groove (12) is provided on the top and the bottom of the groove (11); and the clamping block (504) is movably connected to the interior of the limiting groove (12). 2. An axial flow fan with easily disassembled rotor blades according to claim 1, characterized in that: a slot (9) is provided at the bottom of the mounting plate (3), a key block (10) is fixedly connected to the surface of the output end of the drive device (2), and the key block (10) is used in conjunction with the slot (9). 3. An axial flow fan with easily disassembled rotor blades according to claim 1, characterized in that: a surface of the top end of the output end of the driving device (2) is provided with a thread, and the surface of the thread is threadedly connected to a limiting sleeve (13). 4. An axial flow fan with easily disassembled rotor blades according to claim 1, characterized in that: the L-shaped rod (7) is arranged inside the connecting block (501), and the pressing block (8) is movably connected inside the connecting block (501) and its top end is located outside the connecting block (501). 5. An axial flow fan with easily disassembled rotor blades according to claim 1, characterized in that the area of the front side of the groove (11) is larger than the area of the rear side of the connecting block (501).