Fan mechanism of stainless steel axial flow fan

Abstract

The utility model discloses a stainless steel axial flow fan mechanism, which relates to the technical field of ventilation equipment, and comprises an axial flow cylinder, a fan cylinder, a fan blade assembly and a driving motor, and the fan cylinder is sleeved at one end of the axial flow cylinder in a sliding manner; the driving motor is fixedly mounted in the axial flow cylinder; the fan blade assembly is installed on an output shaft of the driving motor in a limiting and sliding mode, a plurality of screws are connected to the joint of the axial flow barrel and the fan barrel in a threaded mode, and the bottom ends of the screws all extend into the axial flow barrel; a limiting rod is arranged in the axial flow cylinder in an up-down sliding mode and corresponds to the screw. The bottom end of the limiting rod is in limiting sliding connection with the fan blade assembly. The limiting rod, a limiting groove, a key, a limiting block and a spring are arranged; when the axial flow cylinder and the fan cylinder are installed, the screw is rotated, the screw can enable the limiting rod to automatically limit the fan blade assembly, and the fan blade assembly is prevented from sliding out in the using process; and the installation steps are reduced, so that the whole installation process is simpler and quicker.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a stainless steel axial flow fan mechanism. Background Art

[0002] An axial flow fan, as the name suggests, is a fan in which the gas flows parallel to the fan axis. Fans such as electric fans, factory cooling fans, and air conditioner outdoor unit fans are axial flow fans and have a wide range of uses.

[0003] An easy-to-maintain axial flow fan disclosed in Chinese patent CN219733686U includes an axial flow cylinder, a drive motor, a fan cylinder and fan blades. One side of the axial flow cylinder is locked with a fan cylinder flange, the fan cylinder is movably connected to the inside of the fan cylinder, the drive motor is arranged inside the drive motor, and the drive motor shaft end is transmission-connected to the fan blades. By dividing the axial flow cylinder and the fan cylinder into two detachable parts, the fan blades can be disassembled inside the fan cylinder without locking the fan blades to the drive motor.

[0004] When installing the above-mentioned existing axial flow fan, the fan blades are first installed on the connecting rod using a baffle and screws, and then the fan tube is connected to the axial flow tube flange, and finally the drive motor shaft end is inserted into the inner side of the polygonal shaft groove of the rotating shaft, so that the drive motor can drive the fan blades to rotate; the installation steps of the axial flow fan are relatively large, which makes the disassembly and assembly efficiency of the fan low, and makes it inconvenient to maintain the fan.

[0005] In order to solve the above problems, the utility model proposes a stainless steel axial flow fan mechanism. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes a stainless steel axial flow fan mechanism.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel axial flow fan fan mechanism, including an axial flow cylinder, a fan cylinder, a blade assembly and a drive motor, the fan cylinder is slidingly sleeved on one end of the axial flow cylinder; the drive motor is fixedly installed inside the axial flow cylinder; the blade assembly is limitedly slidably installed on the output shaft of the drive motor, and a plurality of screws are threadedly connected at the connection between the axial flow cylinder and the fan cylinder, and the bottom ends of the screws all extend into the interior of the axial flow cylinder; a limit rod is provided inside the axial flow cylinder for sliding up and down, and the limit rod corresponds to the screw; the bottom end of the limit rod is limitedly slidably connected to the blade assembly.

[0008] Preferably, the fan blade assembly includes a connecting tube and a plurality of fan blades; the plurality of fan blades are evenly fixed to the outside of the connecting tube.

[0009] Preferably, a key slot is provided on the output shaft of the driving motor, a key is fixedly installed on the inner side of the connecting cylinder, and the key is slidably connected to the key slot.

[0010] Preferably, an annular limiting groove is provided on the outer side of the connecting tube, and the bottom end of the limiting rod is slidably connected to the limiting groove.

[0011] Preferably, a limit block is fixedly installed on the top of the inner wall of the axial flow cylinder, a sliding groove is opened on the side wall of the limit block, and the limit rod is slidably connected to the sliding groove; a spring is fixedly connected to the top of the inner wall of the axial flow cylinder, and the bottom end of the spring is fixedly connected to the upper end face of the limit rod.

[0012] Preferably, a support base is fixedly mounted on the inner bottom side of the axial flow cylinder, and the drive motor is fixedly mounted on the upper end surface of the support base.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The fan mechanism of the stainless steel axial flow fan is provided with a limit rod, a limit slot, a key, a limit block and a spring. When the axial flow cylinder and the fan cylinder are installed, the screw is turned so that the limit rod can automatically limit the fan blade assembly to prevent the fan blade assembly from sliding out during use. The installation steps are reduced, making the entire installation process simpler and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

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

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

[0019] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the middle part A;

[0020] Figure 4 This is a partial cross-sectional structural diagram of the utility model;

[0021] Figure 5 For this utility model Figure 4 Enlarged schematic diagram of part B in the middle.

[0022] Figure markings: 1. Axial flow tube; 2. Fan tube; 3. Screw; 4. Fan blade assembly; 5. Driving motor; 6. Support seat; 7. Limit rod; 8. Limit groove; 9. Key; 10. Limit block; 11. Spring; 12. Connecting tube; 13. Fan blade. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] See also Figure 1-5 The utility model provides a technical solution: a stainless steel axial flow fan mechanism, comprising an axial flow cylinder 1, a fan cylinder 2, a fan blade assembly 4 and a drive motor 5. The fan cylinder 2 is slidably sleeved on one end of the axial flow cylinder 1. The drive motor 5 is fixedly installed inside the axial flow cylinder 1.

[0025] The fan blade assembly 4 is mounted on the output shaft of the driving motor 5 in a limited sliding manner.

[0026] Specifically, the fan blade assembly 4 includes a connecting tube 12 and a plurality of fan blades 13. The plurality of fan blades 13 are evenly fixed to the outside of the connecting tube 12.

[0027] A key slot is provided on the output shaft of the driving motor 5 , and a key 9 is fixedly mounted on the inner side of the connecting cylinder 12 , and the key 9 is slidably connected to the key slot.

[0028] A plurality of screws 3 are threadedly connected to the connection between the axial flow cylinder 1 and the fan cylinder 2 , and the bottom ends of the screws 3 extend into the interior of the axial flow cylinder 1 .

[0029] A limit rod 7 is provided inside the axial flow cylinder 1 so as to slide up and down.

[0030] Specifically, a limit block 10 is fixedly mounted on the top of the inner wall of the axial flow cylinder 1. A slot is defined on the sidewall of the limit block 10, and the limit rod 7 is slidably connected to the slot. A spring 11 is fixedly attached to the top of the inner wall of the axial flow cylinder 1, and the bottom end of the spring 11 is fixedly connected to the upper end surface of the limit rod 7.

[0031] The limiting rod 7 corresponds to the screw 3 .

[0032] The bottom end of the limiting rod 7 is connected to the connecting tube 12 in a limiting sliding manner.

[0033] Specifically, an annular limiting groove 8 is provided on the outer side of the connecting tube 12 , and the bottom end of the limiting rod 7 is slidably connected to the limiting groove 8 .

[0034] Furthermore, a support base 6 is fixedly mounted on the inner bottom side of the axial flow cylinder 1 , and the drive motor 5 is fixedly mounted on the upper end surface of the support base 6 .

[0035] Working principle:

[0036] During installation, the fan blade assembly 4 can be sleeved on the output shaft of the drive motor 5 so that the key 9 on the inner side of the connecting tube 12 is slidably connected with the keyway on the output shaft of the drive motor 5 .

[0037] The fan tube 2 is then installed, and the fan tube 2 is placed on the outer wall of the axial flow tube 1. The fan tube 2 and the axial flow tube 1 are then connected by screws 3. When the screw 3 is turned, after the screw 3 is turned a certain distance, the bottom end of the screw 3 will contact the limit rod 7. Continue to turn the screw 3, and then push the limit rod 7 to overcome the elastic force of the spring 11 and move downward. The limit rod 7 slides downward on the limit block 10, so that the bottom end of the limit rod 7 moves downward into the limit groove 8 and slides with the limit groove 8.

[0038] At this time, the limiting groove 8 on the outside of the connecting tube 12 is limited by the limiting rod 7, thereby preventing it from slipping off the output shaft of the drive motor 5. At this time, the installation is completed. While installing the fan tube 2 and the axial flow tube 1, the fan blades are limited, which reduces the installation steps and improves work efficiency.

[0039] During maintenance, the fan barrel 2 and the fan blade assembly 4 can be disassembled and assembled separately, making maintenance more convenient.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A stainless steel axial flow fan mechanism, comprising an axial flow cylinder (1), a fan cylinder (2), a fan blade assembly (4) and a drive motor (5), characterized in that: The fan tube (2) is slidably sleeved on one end of the axial flow tube (1); the drive motor (5) is fixedly mounted inside the axial flow tube (1); the fan blade assembly (4) is limitedly slidably mounted on the output shaft of the drive motor (5); a plurality of screws (3) are threadedly connected at the connection between the axial flow tube (1) and the fan tube (2), and the bottom ends of the screws (3) all extend into the interior of the axial flow tube (1); a limit rod (7) is provided inside the axial flow tube (1) for sliding up and down, and the limit rod (7) corresponds to the screw (3); the bottom end of the limit rod (7) is limitedly slidably connected to the fan blade assembly (4).

2. A stainless steel axial flow fan mechanism according to claim 1, characterized in that: The fan blade assembly (4) comprises a connecting tube (12) and a plurality of fan blades (13); the plurality of fan blades (13) are evenly fixed to the outside of the connecting tube (12).

3. The stainless steel axial flow fan mechanism according to claim 2, characterized in that: A key slot is provided on the output shaft of the driving motor (5), a key (9) is fixedly mounted on the inner side of the connecting cylinder (12), and the key (9) is slidably connected to the key slot.

4. The stainless steel axial flow fan mechanism according to claim 2, characterized in that: An annular limiting groove (8) is provided on the outer side of the connecting cylinder (12), and the bottom end of the limiting rod (7) is slidably connected to the limiting groove (8).

5. The stainless steel axial flow fan mechanism according to claim 1, characterized in that: A limit block (10) is fixedly mounted on the top of the inner wall of the axial flow cylinder (1), a sliding groove is provided on the side wall of the limit block (10), and the limit rod (7) is slidably connected to the sliding groove; a spring (11) is fixedly connected to the top of the inner wall of the axial flow cylinder (1), and the bottom end of the spring (11) is fixedly connected to the upper end surface of the limit rod (7).

6. The stainless steel axial flow fan mechanism according to claim 1, characterized in that: A support seat (6) is fixedly mounted on the inner bottom side of the axial flow cylinder (1), and the drive motor (5) is fixedly mounted on the upper end surface of the support seat (6).

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