CN221942764U - High-efficient mixed flow fan - Google Patents

Abstract

The utility model discloses a high-efficiency mixed flow fan, which comprises a fan base, wherein the upper side of the fan base is hinged with a mixed flow fan outer shell through a supporting mechanism, the inner wall of the mixed flow fan outer shell is provided with a sound damping layer, the inner side of the sound damping layer is provided with a sound absorption groove and a sound absorption hole, the upper side of the other end of the fan base is provided with a stable support through a screw rod, the outer side of the lower end of the mixed flow fan outer shell is provided with a guide support, one end of the stable support is arranged with a guide slide Kong Gundong in the guide support through a limit roller, the inner wall of the mixed flow fan outer shell is provided with the sound damping layer, and the inner side of the sound damping layer is provided with the sound absorption groove and the sound absorption hole, so that the inner wall of the mixed flow fan outer shell has excellent sound absorption and silencing performance, a great amount of noise is prevented from interfering surrounding personnel when a motor works, and the upper and lower inclined use angle of an air outlet of the mixed flow fan can be adjusted through the movement adjustment of the guide support by a screw rod.

Description

A high efficiency mixed flow fan

Technical Field

The utility model relates to the technical field of mixed flow fans, in particular to a high-efficiency mixed flow fan.

Background Art

A mixed flow fan is a fan between an axial flow fan and a centrifugal fan. The impeller of a mixed flow fan allows the air to move both centrifugally and axially. The movement of the air in the shell is a mixture of axial and centrifugal movement, so it is called "mixed flow". The fan is mainly composed of impellers, casings, inlet collectors, guide vanes, motors and other components. The impeller is welded on the hub with a twisted flat plate with meridian acceleration characteristics. After dynamic balancing and overspeed tests, it has good aerodynamic performance and good airflow distribution effects. Existing mixed flow fans are not easy to adjust the angle according to actual needs when in use.

In the prior art, a mixed flow fan with an angle adjustment structure with application number CN202221317534.3 is used. By rotating the adjusting screw, the movable connecting ear moves and drives the connecting rod to move. The connecting rod then supports the main body of the mixed flow fan, thereby achieving the purpose of angle adjustment. However, the silencing effect is poor, and the stability of the tilt angle adjustment support is poor, which is easy to cause a lot of noise and is not conducive to environmental protection.

Utility Model Content

The purpose of the utility model is to provide a high-efficiency mixed flow fan to solve the problems in the prior art that it is inconvenient to fix the solar panel on the upper part of the sanitation vehicle body, the stability of the installation and fixation of the solar panel and the supporting casing is poor, the disassembly and assembly are inconvenient, and it is inconvenient to protect the solar panel.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency mixed flow fan, comprising a fan base, a mixed flow fan outer shell hinged on the upper side of the fan base through a supporting mechanism, a motor is arranged inside the mixed flow fan outer shell through a supporting seat, a wind wheel and axial flow blades are arranged at the output end of the motor, a sound-absorbing layer is arranged on the inner wall of the mixed flow fan outer shell, and a sound-absorbing groove and a sound-absorbing hole are arranged on the inner side of the sound-absorbing layer, a stable bracket is arranged on the upper side of the other end of the fan base through a lead screw, a guide support is arranged on the outer side of the lower end of the mixed flow fan outer shell, a guide slide hole is opened inside the guide support, and one end of the stable bracket is rolledly arranged through a limiting roller and the guide slide hole.

Furthermore, the support mechanism includes a first hinge seat arranged on the upper side of one end of the fan base, and the lower side of one end of the mixed flow fan outer shell is hinged to the first hinge seat through a second hinge seat and a pin shaft.

Furthermore, the guide support is configured as a 匚-shaped seat, and one end of the guide support is fixedly welded to both sides of the middle of the mixed flow fan outer shell through a connecting plate.

Furthermore, the screw includes a screw rod rotatably arranged in a groove on the upper side of one end of the fan base, a limit slider is provided on the outer thread of the screw rod, and the lower end of the stabilizing bracket is vertically welded to the limit slider.

Furthermore, a guide rod is provided on the inner wall of the groove, and both ends of the limit slider are slidably arranged with the guide rod through the guide hole, and an adjustment handle is provided at one end of the screw rod.

Furthermore, pulleys are provided at the four corners of the lower end of the fan base, and the pulleys are self-locking universal wheels.

Furthermore, a limiting groove is provided in the middle of the outer side of the limiting roller, and the limiting groove is rollingly clamped in the guide sliding hole.

Furthermore, the sound absorbing hole is configured as a horn hole, and the narrow end of the sound absorbing hole is connected to the middle part of one side of the sound absorbing groove, and the sound absorbing groove is configured in an arc shape.

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

1. The utility model provides a sound-absorbing layer on the inner wall of the mixed flow fan housing, and a sound-absorbing groove and a sound-absorbing hole are provided on the inner side of the sound-absorbing layer. The sound-absorbing hole is configured as a trumpet hole, and the narrow end of the sound-absorbing hole is connected to the middle of one side of the sound-absorbing groove, so that the inner wall of the mixed flow fan housing has excellent sound-absorbing and sound-absorbing performance, which prevents the motor from generating a large amount of noise when working and causing interference to the surrounding personnel, and the sound-absorbing effect is good.

2. The utility model also provides a stabilizing bracket on the upper side of the other end of the fan base through a lead screw, a guide support is provided on the outer side of the lower end of the mixed flow fan outer shell, a guide slide hole is opened inside the guide support, and one end of the stabilizing bracket is rolledly arranged with a limiting roller and the guide slide hole, so that the stabilizing bracket is driven by the lead screw to move and adjust on the guide support, thereby being able to adjust the up and down tilt angle of the air outlet of the mixed flow fan, the adjustment is convenient and quick, the tilt adjustment support has high stability, is not easy to generate noise, and is beneficial to environmental protection.

3. The utility model opens a limiting groove in the middle part of the outer side of the limiting roller, and the limiting groove is rollingly clamped in the guide slide hole, so that it is convenient to roll one end of the stabilizing bracket with the guide slide hole of the guide support, which is beneficial to improve the stability and smoothness of the connection support between the stabilizing bracket and the guide support, and the adjustment is convenient and quick.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

FIG1 is a front view of the internal structure of the fan housing of the utility model;

Figure 2 is a front view of the overall structure of the utility model;

FIG3 is a schematic diagram of the guide support structure of the utility model;

FIG4 is a schematic diagram of a stable support structure of the present utility model;

Fig. 5 is a cross-sectional view taken along line B-B of the present invention;

FIG. 6 is an enlarged schematic diagram of the structure at point A of the present invention.

In the figure: 1. fan base; 2. first hinge seat; 3. second hinge seat; 4. pin shaft; 5. mixed flow fan outer shell; 6. motor; 7. sound-absorbing layer; 8. wind wheel; 9. axial flow blade; 10. groove; 11. limit slider; 12. stable bracket; 13. pulley; 14. adjustment handle; 15. guide support; 16. guide slide hole; 17. limit roller; 18. limit groove; 19. sound-absorbing groove; 20. sound-absorbing hole; 21. connecting plate; 22. screw rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-6. In the embodiment of the utility model, a high-efficiency mixed flow fan includes a fan base 1. A mixed flow fan outer shell 5 is hingedly connected to the upper side of the fan base 1 through a supporting mechanism. A motor 6 is arranged inside the mixed flow fan outer shell 5 through a supporting seat. A wind wheel 8 and an axial flow blade 9 are arranged at the output end of the motor 6 to facilitate the high-speed rotation of the wind wheel 8 and the axial flow blade 9 by the motor 6 for air supply processing. A sound-absorbing layer 7 is arranged on the inner wall of the mixed flow fan outer shell 5. The sound-absorbing layer 7 adopts foam sound-absorbing cotton, and a sound-absorbing groove 19 and a sound-absorbing hole 20 are arranged on the inner side of the sound-absorbing layer 7, so that the inner wall of the mixed flow fan outer shell 5 has an excellent Good sound absorption and silencing performance, preventing the motor 6 from generating a lot of noise when working and causing interference to the surrounding personnel, and the silencing effect is good. A stable bracket 12 is provided on the upper side of the other end of the fan base 1 through a screw, and a guide support 15 is provided on the outer side of the lower end of the mixed flow fan outer shell 5. A guide slide hole 16 is opened inside the guide support 15. One end of the stable bracket 12 is rolled with the guide slide hole 16 through a limiting roller 17, which is convenient for driving the stable bracket 12 to move and adjust in the guide support 15 through the screw, so that the up and down inclination angle of the mixed flow fan outlet can be adjusted, the adjustment is convenient and quick, and the adjustment support stability is high.

As shown in Figure 1, the supporting mechanism includes a first hinge seat 2 arranged on the upper side of one end of the fan base 1, and the lower side of one end of the mixed flow fan outer shell 5 is hinged to the first hinge seat 2 through a second hinge seat 3 and a pin 4, so that the lower side of one end of the mixed flow fan outer shell 5 is hinged to the upper side of one end of the fan base 1. The stability of the hinged support is relatively high. Pulleys 13 are provided at the four corners of the lower end of the fan base 1, and the pulleys 13 are self-locking universal wheels, which are convenient for moving, transporting and using the equipment.

As shown in Figure 2-4, the guide support 15 is configured as a 匚-shaped seat, and one end of the guide support 15 is fixedly welded to the two sides of the middle part of the mixed flow fan outer shell 5 through a connecting plate 21, so that the stability of the connection and fixation between the guide support 15 and the two sides of the middle part of the mixed flow fan outer shell 5 is relatively high, which is beneficial to improving the stability of the lifting and lowering adjustment of one end of the mixed flow fan outer shell 5; a limiting groove 18 is provided in the middle part of the outer side of the limiting roller 17, and the limiting groove 18 is rollingly clamped in the guide slide hole 16, so that it is convenient to roll one end of the stabilizing bracket 12 with the guide slide hole 16 of the guide support 15, which is beneficial to improving the stability and smoothness of the connection support between the stabilizing bracket 12 and the guide support 15, and the adjustment is convenient and quick.

As shown in Figure 1, the lead screw includes a lead screw 22 rotatably arranged in the upper groove 10 at one end of the fan base 1, a limit slider 11 is provided on the outer thread of the lead screw 22, and the lower end of the stabilizing bracket 12 is vertically welded to the limit slider 11, so that the horizontal movement of the stabilizing bracket 12 can be adjusted by rotating the lead screw 22, thereby facilitating the lifting and lowering adjustment of one end of the mixed flow fan outer shell 5; a guide rod is also provided on the inner wall of the groove 10, and the two ends of the limit slider 11 are slidably arranged with the guide rod through a guide hole, and an adjustment handle 14 is provided at one end of the lead screw 22, which is convenient for adjusting the forward and reverse rotation of the lead screw 22.

As shown in FIG6 , the sound absorbing hole 20 is configured as a speaker hole, and the narrow end of the sound absorbing hole 20 is connected to the middle of one side of the sound absorbing groove 19. The sound absorbing groove 19 is configured in an arc shape, so that once the sound enters the sound absorbing groove 19, it is difficult to be transmitted out, so that the sound-absorbing effect is better.

The working principle and use process of the utility model are as follows: the inner wall of the mixed flow fan outer shell 5 is provided with a sound-absorbing layer 7, and the inner side of the sound-absorbing layer 7 is provided with a sound-absorbing groove 19 and a sound-absorbing hole 20, so that the inner wall of the mixed flow fan outer shell 5 has excellent sound absorption and noise reduction performance, which prevents the motor 6 from generating a large amount of noise when working and causing interference to the surrounding personnel, and the noise reduction effect is good; and the stable bracket 12 is driven by the screw to move and adjust in the guide support 15, so that the up and down tilt angle of the mixed flow fan outlet can be adjusted, the adjustment is convenient and quick, the tilt adjustment support stability is high, it is not easy to generate noise, and it is beneficial to environmental protection.

Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded 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 utility model shall be included in the protection scope of the utility model.

Claims (8)

1. A high-efficiency mixed flow fan, comprising a fan base (1), characterized in that: a mixed flow fan outer shell (5) is hingedly connected to the upper side of the fan base (1) through a supporting mechanism, a motor (6) is arranged inside the mixed flow fan outer shell (5) through a supporting seat, a wind wheel (8) and an axial flow blade (9) are arranged at the output end of the motor (6), a sound-absorbing layer (7) is arranged on the inner wall of the mixed flow fan outer shell (5), and a sound-absorbing groove (19) and a sound-absorbing hole (20) are arranged inside the sound-absorbing layer (7), a stabilizing bracket (12) is arranged on the upper side of the other end of the fan base (1) through a lead screw, a guide support (15) is arranged on the outer side of the lower end of the mixed flow fan outer shell (5), a guide sliding hole (16) is opened inside the guide support (15), and one end of the stabilizing bracket (12) is arranged to roll with the guide sliding hole (16) through a limiting roller (17). 2. A high-efficiency mixed flow fan according to claim 1, characterized in that: the supporting mechanism includes a first hinge seat (2) arranged on the upper side of one end of the fan base (1), and the lower side of one end of the mixed flow fan outer shell (5) is hinged to the first hinge seat (2) through a second hinge seat (3) and a pin shaft (4). 3. A high-efficiency mixed flow fan according to claim 1, characterized in that: the guide support (15) is configured as a 匚-shaped seat, and one end of the guide support (15) is fixedly welded to both sides of the middle part of the mixed flow fan outer shell (5) through a connecting plate (21). 4. A high-efficiency mixed flow fan according to claim 1, characterized in that: the screw includes a screw (22) rotatably arranged in a groove (10) on the upper side of one end of the fan base (1), a limit slider (11) is provided on the outer side of the screw (22), and the lower end of the stabilizing bracket (12) is vertically welded to the limit slider (11). 5. A high-efficiency mixed flow fan according to claim 4, characterized in that: a guide rod is also provided on the inner wall of the groove (10), and both ends of the limit slider (11) are slidably arranged with the guide rod through the guide hole, and an adjustment handle (14) is provided at one end of the screw rod (22). 6. A high-efficiency mixed flow fan according to claim 1, characterized in that pulleys (13) are provided at the four corners of the lower end of the fan base (1), and the pulleys (13) are self-locking universal wheels. 7. A high-efficiency mixed flow fan according to claim 1, characterized in that a limiting groove (18) is provided in the middle of the outer side of the limiting roller (17), and the limiting groove (18) is rollingly clamped in the guide sliding hole (16). 8. A high-efficiency mixed flow fan according to claim 1, characterized in that: the sound absorption hole (20) is configured as a trumpet hole, and the narrow end of the sound absorption hole (20) is connected to the middle part of one side of the sound absorption groove (19), and the sound absorption groove (19) is configured in an arc shape.