Novel axial flow fan

Abstract

The utility model discloses a novel axial flow fan which comprises a mounting sleeve, a driver, fan blades and a mounting structure. The mounting structure is arranged, the fixing frame is in the herringbone shape, higher stability is achieved, shaking is reduced, the fixing frame can be attached to the inner side surface of the limiting base after being mounted in the limiting base, the fixing frame is positioned and clamped through the limiting base during vibration or shaking, the mounting stability is improved, bolt looseness is greatly reduced, and the service life of the fixing frame is prolonged. The pressing frame is pressed on the limiting seat, then the pressing block is pressed at the bolt installation position of the fixing frame, then the butt joint nut is connected with the butt joint screw rod, the pressing frame is limited and fixed, the bolt installation position of the fixing frame is pressed and fastened through the pressing block, the stability of connection between the fixing frame and the installation sleeve is improved, and the fixing frame is prevented from being damaged. And the phenomenon of loosening is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the field of axial flow fans, in particular to a new type of axial flow fan. Background Art

[0002] Axial flow fans are widely used. They are fans in which the airflow direction is in the same direction as the axis of the fan blades. For example, electric fans and air conditioner outdoor fans are fans that operate in an axial flow manner. They are called "axial flow" because the gas flows parallel to the fan axis. Axial flow fans are usually used in situations where the flow requirements are higher and the pressure requirements are lower. Axial flow fans are fixed in position and move the air.

[0003] Existing patent: CN206071907U, discloses a low-noise axial flow fan, including: a wind cover, a motor mounting base arranged at the rear end of the wind cover, a motor arranged on the fan mounting base, the motor is connected to the wind cover through a plurality of L-shaped motor fixing rods, a fixing plate is arranged at one end of the L-shaped motor fixing rod connected to the wind cover, the L-shaped motor fixing rod is connected to the wind cover through a fixing plate and a first bolt, a connecting plate is arranged on one end of the L-shaped motor fixing rod connected to the motor, a fixing base cooperating with the connecting plate is arranged on the motor, the L-shaped motor fixing rod is connected to the motor through a connecting plate, a fixing base, a second bolt and a nut, a grounding mark is fixedly arranged on one of the second bolts through a grounding mark fixing nut, a protective net is arranged at the front end of the wind cover, a plurality of serrated fan blades are arranged inside the wind cover, and the serrated fan blades are fixed to a fan blade fixing plate.

[0004] The above patents or existing axial flow fans have the following problems:

[0005] When the existing axial flow fan driver is installed in the mounting sleeve, it is usually fixed with bolts. The driver will vibrate during operation. Long-term vibration can easily cause the bolts to loosen, causing the driver to shake unstably and causing the fan blades to hit the mounting sleeve. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a new axial flow fan.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new type of axial flow fan, including a mounting sleeve, a driver is arranged inside the mounting sleeve, and a fan blade is installed on the output shaft of the driver. A mounting structure is arranged inside the mounting sleeve, and the mounting structure includes a docking plate, and the docking plate is arranged on the surface of the driver. The docking plate is plugged into a retaining ring, and a fixing frame is arranged on the surface of the retaining ring. The fixing frame is fixed to the inner wall of the mounting sleeve by bolts, and a limiting seat is arranged on the inner wall of the mounting sleeve, and a fastening structure is arranged on the limiting seat.

[0008] Preferably, the fastening structure includes an extension block, which is arranged at the edge of the limit seat, and a docking screw is arranged on the extension block, a pressure frame is pressed on the limit seat, a pressure block is arranged on the inner side of the pressure frame, a docking block is arranged on the surface of the pressure frame, and a docking nut is connected to the docking screw.

[0009] Preferably, the fixing frame is in a "human" shape, and at least four fixing frames are provided and fixed on the clamping ring in a cross distribution.

[0010] Preferably, the groove in the middle of the limiting seat for placing the fixing frame is adapted to the shape of the end of the fixing frame, and the fixing frame fits with the inner surface of the limiting seat when placed in the limiting seat.

[0011] Preferably, a spring is arranged inside the extension block, the spring is sleeved on the docking screw, and a pressure pad is arranged at the end of the spring, and the pressure pad can slide along the surface of the docking screw.

[0012] Beneficial effects of the utility model:

[0013] The utility model is provided with an installation structure, and the fixing frame is in a "human" shape, has higher stability, and reduces shaking. After the fixing frame is installed in the limiting seat, it will fit with the inner surface of the limiting seat to position the fixing frame, and the limiting seat will be used to clamp the fixing frame when it vibrates or shakes, thereby improving the stability of the installation, greatly reducing the loosening of the bolts, and improving the stability after installation. The pressing frame is pressed onto the limiting seat, and then the pressing block is pressed on the bolt installation position of the fixing frame, and then the docking nut is connected with the docking screw, and the pressing frame is limited and fixed, and the bolt installation position of the fixing frame is pressed and tightened by the pressing block, which improves the stability of the connection between the fixing frame and the installation sleeve and is not prone to loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0016] Figure 3 This is a rear view structural diagram of the installation structure of the utility model;

[0017] Figure 4 It is a rear view cross-sectional structural schematic diagram of the limit seat of the utility model.

[0018] Among them: installation sleeve-1, driver-2, fan blade-3, installation structure-4, docking plate-41, retaining ring-42, fixing frame-43, limiting seat-44, fastening structure-45, extension block-451, docking screw-452, pressure frame-453, pressure block-454, docking block-455, docking nut-456, spring-457, pressure pad-458. DETAILED DESCRIPTION

[0019] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0020] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a novel axial flow fan, including a mounting sleeve 1, a mounting structure 4 is assembled inside the mounting sleeve 1, a driver 2 is fixed in the mounting structure 4 by bolts, and the mounting structure 4 is fixed inside the mounting sleeve 1 by bolts, so that the driver 2 is installed and fixed inside the mounting sleeve 1, and a fan blade 3 is installed on the output shaft of the driver 2;

[0021] Turn on the driver 2 to rotate the fan blade 3. When the fan blade 3 rotates, the gas enters the fan blade 3 axially from the air inlet of the mounting sleeve 1, and then is pushed by the blades on the fan blade 3 to increase its energy, and then flows into the guide vane, which deflects the airflow direction to axial flow.

[0022] See also Figure 3 and Figure 4 The utility model provides a new type of axial flow fan. The mounting structure 4 includes a docking plate 41. The docking plate 41 is integrally formed on the surface of the driver 2. The docking plate 41 is plugged with a clamping ring 42 to enable the driver 2 to be loaded into the clamping ring 42 and limited. Then, the driver 2 is fixed in the clamping ring 42 by bolt positioning. Four fixing frames 43 are arranged on the surface of the clamping ring 42. The fixing frames 43 are in a "human" shape, have higher stability, and reduce shaking. The fixing frames 43 are fixed to the inner wall of the mounting sleeve 1 by bolts. A limit seat 44 is provided on the inner wall of the sleeve 1, and the fixing frame 43 is installed in the limit seat 44. The groove in the middle of the limit seat 44 for placing the fixing frame 43 is adapted to the shape of the end of the fixing frame 43, and the fixing frame 43 fits with the inner surface of the limit seat 44 when placed in the limit seat 44, so that the fixing frame 43 can be positioned. When vibrating or shaking, the limit seat 44 will be used to lock the fixing frame 43, thereby improving the stability of the installation, greatly reducing the loosening of the bolts, and improving the stability after installation. A fastening structure 45 is provided on the limit seat 44;

[0023] The fastening structure 45 includes an extension block 451, which is integrally formed at the upper and lower ends of the limiting seat 44. The extension block 451 is equipped with a docking screw 452, a pressing frame 453 pressed on the limiting seat 44, a pressing block 454 is arranged inside the pressing frame 453, and a docking block 455 is integrally formed on the outer surface of the pressing frame 453, the docking block 455 can be connected with the docking screw 452, the docking nut 456 is threadedly connected with the docking screw 452, and pushes the pressing frame 453 to fix it on the limiting seat 44, a spring 457 is arranged inside the extension block 451, the spring 457 is sleeved on the docking screw 452, and a pressure pad 458 is arranged at the end of the spring 457, and the pressure pad 458 can slide along the surface of the docking screw 452;

[0024] When the fixing frame 43 is installed in the limiting seat 44 and fixed by bolts, the pressing frame 453 is pressed onto the limiting seat 44, at which time the docking block 455 is plugged into the docking screw 452, and then the pressing block 454 is pressed on the bolt installation position of the fixing frame 43, then the docking nut 456 is connected with the docking screw 452, and then the docking nut 456 is rotated to tighten the pressing frame 453 on the limiting seat 44, at this time, the pressing block 454 is tightly pressed on the fixing frame 43, at this time, the spring 457 is compressed to generate elastic force, and under the action of the elastic force, the pressure pad 458 is pushed to push the docking block 455, and then the docking nut 456 is pushed to make its internal thread fit with the inner side of the thread of the docking screw 452, thereby improving stability, and the bolt installation position of the fixing frame 43 is pressed and tightened by the pressing block 454, thereby improving the stability of the connection between the fixing frame 43 and the mounting sleeve 1, and it is not easy to loosen.

[0025] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel axial flow fan, comprising a mounting sleeve (1), a driver (2) being arranged inside the mounting sleeve (1), and a fan blade (3) mounted on an output shaft of the driver (2); Features: The mounting sleeve (1) further comprises a mounting structure (4), wherein the mounting sleeve (1) is provided with a mounting structure (4), wherein the mounting structure (4) comprises a docking plate (41), wherein the docking plate (41) is provided on the surface of the driver (2), wherein the docking plate (41) is plugged into a retaining ring (42), wherein a fixing frame (43) is provided on the surface of the retaining ring (42), wherein the fixing frame (43) is fixed to the inner wall of the mounting sleeve (1) by bolts, wherein a limiting seat (44) is provided on the inner wall of the mounting sleeve (1), wherein a fastening structure (45) is provided on the limiting seat (44).

2. According to claim 1, a novel axial flow fan is characterized in that: The fastening structure (45) comprises an extension block (451), the extension block (451) is arranged on the edge of the limiting seat (44), a docking screw (452) is arranged on the extension block (451), a pressing frame (453) pressed on the limiting seat (44), a pressing block (454) is arranged on the inner side of the pressing frame (453), a docking block (455) is arranged on the surface of the pressing frame (453), and a docking nut (456) connected to the docking screw (452).

3. According to the new axial flow fan of claim 1, it is characterized by: The fixing frame (43) is in a "human" shape, and at least four fixing frames (43) are provided and are fixed on the clamping ring (42) in a cross-distributed manner.

4. A novel axial flow fan according to claim 3, characterized in that: The groove in the middle of the limiting seat (44) for placing the fixing frame (43) is matched with the shape of the end of the fixing frame (43), and the fixing frame (43) fits with the inner surface of the limiting seat (44) when placed in the limiting seat (44).

5. According to claim 2, the novel axial flow fan is characterized in that: A spring (457) is arranged inside the extension block (451), and the spring (457) is sleeved on the docking screw (452). A pressure pad (458) is arranged at the end of the spring (457), and the pressure pad (458) can slide along the surface of the docking screw (452).

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