Movable vibration reduction fan

Abstract

The utility model discloses a movable vibration reduction fan which is characterized in that a triangular structure or trapezoidal structure rack is adopted, a cross beam is arranged on the rack, and a fixing seat is arranged on the cross beam and is locked and fixed with a barrel body of the fan; a fan is fixed in the barrel body; the fan is fixed below half of the overall height of the rack; due to the design, the overall gravity center of the movable vibration reduction fan can be reduced, and the movable vibration reduction fan is more stable during operation; the traction part is arranged in the center of the top of the rack, hoisting of the damping ball is achieved through the traction part, due to the fact that the length design of the traction part is different, the influence caused by axial shaking of the fan can be counteracted through swinging of the damping ball according to different vibration frequencies of the fan, and therefore overall vibration of the fan is reduced, and it is guaranteed that the fan can run stably.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment technology, and in particular to a portable vibration-damping fan for use in civil buildings, industrial plants, and various venues. Background Technology

[0002] Axial flow fans have a wide range of applications and are used in large quantities. They are usually installed in civil buildings, industrial and mining plants, and various venues for ventilation or as cooling fans.

[0003] For axial flow fans, vibration is a crucial parameter. Fan vibration is typically caused by impeller imbalance, and is also related to factors such as the thickness of the fan casing plates, as well as the roundness, strength, and levelness of the machining. Axial flow fan vibration generally originates in two directions: radial and axial. Radial vibration mainly stems from impeller imbalance, while axial vibration comes from airflow impact. The axial airflow impact force is very strong when the fan is first started. This has a significant impact on suspended fans, especially mobile axial flow fans, causing axial swaying during startup and normal operation. For such suspended fans, if vibration is not properly controlled before leaving the factory, it can easily lead to vibration after installation on-site, potentially transmitting to other connected equipment and causing greater damage, resulting in more harm than good.

[0004] In view of the above drawbacks, if the vibration of a mobile fan is not well controlled, it will also have a great impact on the fan support and the moving pulleys, greatly shortening the overall service life of the fan. Therefore, a better solution is urgently needed to address the axial vibration problem of the fan. Utility Model Content

[0005] To overcome the shortcomings of existing technology, this utility model discloses a movable vibration-damping fan, as shown in the attached figure. Its purpose is to improve the fan mounting frame by lowering the fan's fixed position and installing damping balls to eliminate the effects of swaying.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a movable vibration damping fan, which includes a frame, the frame is set in a triangular structure or a trapezoidal structure, a crossbeam is set on the frame, and a fixing seat is set on the crossbeam and locked and fixed to the cylinder of the fan; the fan is fixed inside the cylinder.

[0007] The fan is fixed at less than half the overall height of the frame; this design can lower the overall center of gravity of this movable vibration damping fan.

[0008] A traction unit is provided at the top center of the frame, through which the damping ball is hoisted; a buffer base is provided at the bottom of the frame.

[0009] The damping balls are arranged in multiple ways at different heights, and damping and vibration prevention are achieved through the staggered arrangement of the damping balls.

[0010] An adjustment seat is provided on the outside of the cylinder. The adjustment seat cooperates with the fixed seat to support and erect the entire cylinder. An adjustment groove is also provided on the cylinder to adjust the swing angle of the entire cylinder.

[0011] The frame is provided with a swing arm on its side, and an angle connector is provided at the lower part of the swing arm. A support wheel is provided on the angle connector. The swing arm and the frame are provided with a number of positioning holes, which can realize positioning in the folded state and the supported state.

[0012] The present invention, with the above-described structural configuration, has the following advantages compared to the prior art: It adopts a triangular or trapezoidal frame with a crossbeam on it. A fixed seat is installed on the crossbeam and locked to the fan's cylinder. The fan is fixed inside the cylinder, and the fan is fixed at less than half the overall height of the frame. This design lowers the overall center of gravity of the movable vibration-damping fan, making it more stable during operation. A traction unit is located at the top center of the frame, through which the damping ball is hoisted. Due to the different lengths of the traction unit, the damping ball's swing can counteract the axial sway of the fan according to the different frequencies of fan vibration, thereby reducing the overall vibration of the fan and ensuring its stable operation. Attached Figure Description

[0013] Figure 1 : Side view structural schematic diagram of this utility model;

[0014] Figure 2 : A schematic diagram of the main structure of this utility model;

[0015] Figure 3 : Figure 1 Enlarged schematic diagram of the structure of region A in the middle;

[0016] Figure 4 : Schematic diagram of the moving state structure of this utility model;

[0017] In the diagram: 1. Frame, 11. Upper crossbeam, 12. Inclined frame, 13. Lower crossbeam, 14. Positioning plate, 15. Middle positioning hole, 16. Bottom crossbeam, 17. Buffer base, 18. Fixed seat, 181. Adjustment locking hole, 19. Locking bolt, 2. Cylinder, 21. Adjustment seat, 211. Adjustment groove, 22. Motor support plate, 23. Motor, 24. Fan blade, 3. Damping ball, 31. Pull rope, 32. Locking point, 4. Swing rod, 41. Angle connector, 42. Hinge point, 43. Support wheel, 44. Handle, 45. Upper positioning hole, 46. Lower positioning hole. Detailed Implementation

[0018] The present invention will be described in detail below through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the following technical solutions. The scope of protection of this patent application is determined by the claims.

[0019] Example 1: Combined with Appendix Figure 1 , 2 As shown, a portable vibration-damping fan includes a frame 1. The frame 1 is configured with a triangular structure or a trapezoidal structure. In this embodiment, the frame is configured with a triangular structure, including an inclined frame 12. An upper crossbeam 11, a lower crossbeam 13, and a bottom crossbeam 16 are horizontally arranged at different heights on the inclined frame. The upper crossbeam 11, the lower crossbeam 13, and the bottom crossbeam 16 are all arranged in a ring around the perimeter. A fixed seat 18 is provided on the upper crossbeam 11. The fixed seat 18 is provided with an adjustment locking hole 181. An adjustment seat 21 is provided on the cylinder 2 in conjunction with the fixed seat 18. The adjustment seat 21 is provided with an adjustment groove 211. A locking bolt 19 is also provided between the fixed seat 18 and the adjustment seat 21. By cooperating with the locking bolt 19 and the adjustment locking hole 181 and the adjustment groove 211, the air delivery angle of the fan can be adjusted and locked.

[0020] When the fan is fixed, the motor 23 is supported and fixed by setting a motor support plate 22 inside the cylinder 2, and the fan blades 24 are set at the end of the motor 23.

[0021] This utility model also fixes the fan to less than half the overall height of the frame 1. In this embodiment, the fan is fixed on the upper crossbeam 11, which is set to less than half the overall height of the frame 1. This design can lower the overall center of gravity of this movable vibration damping fan.

[0022] In a further design, a locking point 32 is provided at the top center of the frame 1 to fix the pull rope 31. A damping ball 3 is provided at the bottom of the pull rope 31. Multiple damping balls 3 are provided; in this embodiment, three damping balls 3 are arranged at different heights to achieve damping and vibration reduction. Therefore, the cantilever lengths of the three damping balls 3 are different. This allows the oscillation of the damping balls 3 to counteract the axial sway of the fan according to the different vibration frequencies. Because the damping balls 3 are set at different heights, the longer damping balls 3 oscillate during low-frequency operation, while the shorter damping balls oscillate during high-frequency operation, thereby reducing the overall vibration of the fan, ensuring stable operation, and improving the service life of the fan itself and the support 1.

[0023] The present invention also provides a buffer base 17 at the bottom of the frame 1. This buffer base can be made of rubber material, and the buffer base can be used to fix the present invention during equipment operation.

[0024] Example 2: Based on the mechanism of Example 1, this utility model is used on the ground and can be moved at any time. Moreover, the fan itself can rotate to meet ventilation and heat dissipation in different directions, which is flexible and convenient. Therefore, based on the above, this utility model provides a swing rod 4 on the side of the frame 1. An angle connector 41 is provided at the lower part of the swing rod 4. A support wheel 43 is provided on the angle connector 41. An upper positioning hole 45 and a lower positioning hole 46 are provided at intervals on the swing rod 4. Correspondingly, a positioning plate 14 is provided in the middle of the lower crossbeam 13. A positioning hole for the support wheel 43 in the non-use state is provided on the positioning plate. A positioning hole for the support wheel 43 in the use state is provided on the frame 1.

[0025] When this utility model is moved, such as Figure 4 As shown, by moving the swing rod 4 to the left and right sides respectively, the swing rod is equipped with a handle 44 for easy application of force. The lower positioning hole 46 on the swing rod 4 is locked with the positioning hole on the frame 1. At this time, the four support wheels 43 support the entire movable vibration damping fan vertically off the ground. The present invention can be moved flexibly by the four support wheels 43.

[0026] like Figure 1 As shown, by moving the swing rod 4 towards the center of the frame 1, the upper positioning hole 45 on the swing rod 4 locks with the positioning hole on the positioning plate 14. At this time, the four support wheels 43 are stored and vertical support is achieved through the buffer base 17. The four buffer bases 17 can be used to fix the present invention in the working state.

[0027] In summary, this utility model can adjust the fixed angle of the fan, and can also achieve vibration buffering through the damping ball 3, reducing the overall vibration of the fan and ensuring that the fan can operate smoothly; it can also adjust the height of the support wheel 43 by adjusting the swing rod 4, realizing the adjustment between working and non-working states. This utility model overcomes the drawbacks of the prior art and is an ideal movable vibration-damping fan.

Claims

1. A portable vibration damping fan, characterized in that: It includes a frame, which is configured in a triangular or trapezoidal structure. A crossbeam is provided on the frame, and a fixing seat is provided on the crossbeam to lock and fix it to the cylinder of the fan. The fan is fixed inside the cylinder. The fan is fixed at less than half the overall height of the frame; this design can lower the overall center of gravity of this movable vibration damping fan. A traction unit is provided at the top center of the frame, through which the damping ball is hoisted; a buffer base is provided at the bottom of the frame.

2. The portable vibration damping fan according to claim 1, characterized in that: The damping balls are arranged in multiple ways at different heights, and damping and vibration prevention are achieved through the staggered arrangement of the damping balls.

3. A portable vibration-damping fan according to claim 1, characterized in that: An adjustment seat is provided on the outside of the cylinder. The adjustment seat cooperates with the fixed seat to support and erect the entire cylinder. An adjustment groove is also provided on the cylinder to adjust the swing angle of the entire cylinder.

4. A portable vibration-damping fan according to claim 1, characterized in that: The frame is provided with a swing arm on its side, and an angle connector is provided at the lower part of the swing arm. A support wheel is provided on the angle connector. The swing arm and the frame are provided with a number of positioning holes, which can realize positioning in the folded state and the supported state.

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