Energy-saving low-noise axial flow fan

Abstract

The utility model discloses an energy-saving low-noise axial flow fan which comprises a shell, a supporting frame, a fan and a motor, the fan is connected to an output shaft of the motor, the fan and the motor are arranged in the shell, the shell is connected to the supporting frame, universal wheels and cushion blocks are arranged at the bottom of the supporting frame, and the universal wheels and the cushion blocks are respectively connected to the supporting frame in a rotating mode. The universal wheels and the cushion blocks are staggered in angle during use; the device has the characteristics of being convenient to move and stable to use.

Description

Technical Field

[0001] This utility model belongs to the field of axial flow fan technology, and in particular relates to an energy-saving and low-noise axial flow fan. Background Technology

[0002] An axial flow fan is one in which the airflow is parallel to the fan's axis, such as an electric fan or the outdoor unit fan of an air conditioner. It's called "axial flow" because the gas flows parallel to the fan's axis. Axial flow fans are typically used in applications requiring high flow rates but low pressure. An axial flow fan is stationary while moving air. It mainly consists of a fan impeller and a casing; its structure is simple, but it has very high performance requirements and a wide range of applications.

[0003] To facilitate movement, some existing axial flow fans have a frame and casters attached to the fan casing. However, during operation, the vibration of the motor and the flow of gas can cause the axial flow fan to shift its position, posing a safety hazard. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an energy-saving and low-noise axial flow fan.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an energy-saving and low-noise axial flow fan, comprising a housing, a support frame, a fan and a motor, wherein the fan is connected to the output shaft of the motor, the fan and the motor are disposed inside the housing, the housing is connected to the support frame, and the bottom of the support frame is provided with casters and pads, the casters and pads are rotatably connected to the support frame respectively, and the casters and pads are offset at different angles during use.

[0007] Furthermore, the support frame is provided with a first connecting device and a second connecting device. The caster wheel is connected to the support frame through the first connecting device, and the pad is connected to the support frame through the second connecting device.

[0008] Furthermore, the first connecting device includes a first connecting block and a second connecting block, both of which are arc-shaped structures. The first connecting block is provided with a first protrusion, and the second connecting block is provided with a second protrusion. The first protrusion and the second protrusion are connected by screws.

[0009] Furthermore, the first connecting block is provided with a connecting shaft, which is connected to the universal wheel, and a fixing plate is connected to one end of the connecting shaft.

[0010] Furthermore, the second connecting block is provided with a third protrusion, the third protrusion is provided with a through cavity, the first fixing rod passes through the through cavity, and the support frame is provided with a first through hole and a second through hole corresponding to the first fixing rod, the first through hole and the second through hole are set adjacent to each other at 90 degrees.

[0011] Furthermore, a cap is rotatably connected to the first fixed rod, and an extension is provided at the bottom of the cap, which is threadedly connected to the third protrusion.

[0012] Furthermore, the second connecting device includes a third connecting block and a fourth connecting block, both of which are arc-shaped structures. The third connecting block is provided with a fourth protrusion, and the fourth connecting block is provided with a fifth protrusion. The fourth and fifth protrusions are connected by screws.

[0013] Furthermore, a fifth connecting block is provided on the third connecting block, a connecting plate is provided on the fifth connecting block, and a pad is provided on the connecting plate.

[0014] Furthermore, the fourth connecting block is provided with a sixth protrusion, the sixth protrusion is provided with a through groove and a first groove, the first groove is provided on the side wall of the through groove; a second fixing rod is provided through the through groove, the second fixing rod is provided with a connecting rod, and the support frame is provided with a first fixing hole and a second fixing hole corresponding to the second fixing rod, the first fixing hole and the second fixing hole are set adjacent to each other at 90 degrees.

[0015] Furthermore, the second fixed rod is provided with a third fixed rod, the third fixed rod is provided with a first guide rod, a first spring and a fixing block, the second fixed rod is provided with a guide groove corresponding to the first guide rod, and the side wall of the through groove is provided with a fixing groove corresponding to the fixing block; the connecting rod is provided with a movable rod, the movable rod is provided with a second spring, and the third fixed rod is provided with a guide block corresponding to the movable rod.

[0016] The advantages of this utility model are: it provides a convenient, stable, energy-saving, and low-noise axial flow fan. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

[0020] Figure 1This is a schematic diagram of the structure of an energy-saving and low-noise axial flow fan in one embodiment of the present invention.

[0021] Figure 2 for Figure 1 A cross-sectional view of the first connecting device of the energy-saving and low-noise axial flow fan in the illustrated embodiment.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0023] Figure 4 for Figure 1 Cross-sectional view of the second connecting device of the energy-saving and low-noise axial flow fan in the illustrated embodiment. Figure 1 .

[0024] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0025] Figure 6 for Figure 1 Cross-sectional view of the second connecting device of the energy-saving and low-noise axial flow fan in the illustrated embodiment. Figure 2 .

[0026] Figure 7 for Figure 6 Enlarged view of point C in the image.

[0027] The meanings of the reference numerals in the figure are as follows:

[0028] 100. Housing; 200. Support frame; 201. Second through hole; 202. First fixing hole; 203. Second fixing hole; 300. Motor; 400. Fan; 500. Caster wheel; 600. Pad; 700. First connecting device; 701. First connecting block; 7011. First protrusion; 702. Second connecting block; 7021. Second protrusion; 703. Connecting shaft; 704. Fixing plate; 705. Third protrusion; 706. First fixing rod; 707. Cap; 7071. Extension; 800. Second connecting device 801, Third connecting block; 8011, Fourth protrusion; 802, Fourth connecting block; 8021, Fifth protrusion; 803, Fifth connecting block; 804, Connecting plate; 805, Sixth protrusion; 8051, Fixing groove; 8052, First groove; 806, Connecting rod; 807, Third fixing rod; 808, First guide rod; 809, First spring; 810, Second fixing rod; 8101, Guide groove; 8102, Second groove; 811, Fixing block; 812, Movable rod; 813, Second guide rod; 814, Second spring. Detailed Implementation

[0029] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0030] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0031] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0032] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0034] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] like Figure 1-7 As shown, an energy-saving and low-noise axial flow fan includes a housing 100, a support frame 200, a fan 400, and a motor 300. The fan 400 is connected to the output shaft of the motor 300. The fan 400 and the motor 300 are housed inside the housing 100, which is connected to the support frame 200. The bottom of the support frame 200 is equipped with casters 500 and pads 600. The casters 500 are casters with brakes, and the pads 600 are made of rubber. The casters 500 and pads 600 are rotatably connected to the support frame 200, and their angles are offset during use. A frequency converter is installed on the housing 100. When the axial flow fan starts, the current of the motor 300 is higher than the rated current, which not only affects the service life of the motor 300 but also consumes more electricity. The frequency converter can achieve soft start of the motor 300 and achieve energy-saving speed regulation by changing the frequency of the equipment input voltage.

[0036] Furthermore, the support frame 200 is provided with a first connecting device 700 and a second connecting device 800. The caster wheel 500 is connected to the support frame 200 through the first connecting device 700, and the pad 600 is connected to the support frame 200 through the second connecting device 800.

[0037] Specifically, the first connecting device 700 includes a first connecting block 701 and a second connecting block 702. Both the first connecting block 701 and the second connecting block 702 have an arc-shaped structure. The first connecting block 701 is provided with a first protrusion 7011, and the second connecting block 702 is provided with a second protrusion 7021. The first protrusion 7011 and the second protrusion 7021 are respectively provided with a first threaded hole and a second threaded hole. The first protrusion 7011 and the second protrusion 7021 are connected by screws. With the setting of the first connecting block 701 and the second connecting block 702, the caster wheel 500 can be easily connected to the support frame 200. At the same time, the first connecting block 701 and the second connecting block 702 are sleeved on the support frame 200, so that the caster wheel 500 can rotate around the support frame 200 to adjust the working state of the fan.

[0038] The first connecting block 701 is provided with a connecting shaft 703, which is connected to the universal wheel 500. One end of the connecting shaft 703 is connected to a fixing plate 704. The universal wheel 500 can rotate relative to the connecting shaft, realizing multi-directional rotation of the universal wheel 500. The fixing plate 704 is connected to the bottom end of the connecting shaft 703 by screws, which makes it easy to remove the universal wheel 500 from the connecting shaft 703.

[0039] The second connecting block 702 is provided with a third protrusion 705, the third protrusion 705 is provided with a through cavity, and the first fixing rod 706 passes through the through cavity. The support frame 200 is provided with a first through hole and a second through hole 201 corresponding to the first fixing rod 706. The first through hole and the second through hole 201 are arranged adjacent to each other at 90 degrees.

[0040] A cap 707 is rotatably connected to the first fixing rod 706. The cap 707 has an extension at its bottom, which is threaded to the third protrusion 705.

[0041] Furthermore, the second connecting device 800 includes a third connecting block 801 and a fourth connecting block 802, both of which are arc-shaped structures. The third connecting block 801 is provided with a fourth protrusion 8011, and the fourth connecting block 802 is provided with a fifth protrusion 8021. The fourth connecting block 802 and the fifth protrusion 8021 are respectively provided with a third threaded hole and a fourth threaded hole. The fourth protrusion 8011 and the fifth protrusion 8021 are connected by screws. With the setting of the third connecting block 801 and the fourth connecting block 802, the pad 600 can be easily connected to the support frame 200. At the same time, the third connecting block 801 and the fourth connecting block 802 are fitted on the support frame 200, so that the pad 600 can rotate around the support frame 200 to adjust the working state of the fan.

[0042] The third connecting block 801 is provided with a fifth connecting block 803, the fifth connecting block 803 is provided with a connecting plate 804, and the pad 600 is provided on the connecting plate 804.

[0043] The fourth connecting block 802 is provided with a sixth protrusion 805, the sixth protrusion 805 is provided with a through groove and a first groove 8052, the first groove 8052 is provided on the side wall of the through groove; a second fixing rod 810 is provided in the through groove, a connecting rod 806 is provided on the second fixing rod 810, and the support frame 200 is provided with a first fixing hole 202 and a second fixing hole 203 corresponding to the second fixing rod 810, the first fixing hole 202 and the second fixing hole 203 are arranged adjacent to each other at 90 degrees.

[0044] The second fixing rod 810 is provided with a third fixing rod 807. The third fixing rod 807 is provided with a first guide rod 808, a first spring 809, and a fixing block 811. The second fixing rod 810 is provided with a guide groove 8101 corresponding to the first guide rod 808 and a second groove 8102 for installing the first spring 809. The side wall of the through groove is provided with a fixing groove 8051 corresponding to the fixing block 811. The fixing block 811 is provided with an inclined groove. The connecting rod 806 is provided with a movable rod 812. The movable rod 812 is provided with a second spring 814. The third fixing rod 807 is provided with a guide block corresponding to the movable rod 812. The guide block is provided with an inclined surface. The connecting rod 806 is provided with a second guide rod 813. The movable rod 812 is provided with a guide hole. The second guide rod 813 is inserted into the guide hole to guide the movement of the movable rod 812 and ensure the contact effect between the movable rod 812 and the guide block.

[0045] When the fan is moving, the caster 500 rotates to a vertical position, and the pad 600 rotates to a horizontal position. The caster 500 contacts the ground, and the pad 600 is suspended in the air, facilitating the movement of the fan. When the fan is in use, the caster 500 rotates to a horizontal position, and the pad 600 rotates to a vertical position. The pad 600 contacts the ground, and the caster 500 is suspended in the air, fixing the fan in place and preventing it from moving during use. The rubber material of the pad 600 absorbs the vibration generated by the motor 300 and the fan 400, preventing the support frame 200 from bouncing on the ground and reducing the noise of the fan.

[0046] The following example illustrates the adjustment method by flipping the 500 caster wheel or the 600 pad to a horizontal position:

[0047] When adjusting the angle of the caster wheel 500, rotate the cap 707 to pull the first fixing rod 706 out of the first through hole, rotate the first connecting block 701 and the second connecting block 702, the first connecting block 701 and the second connecting block 702 drive the caster wheel 500 to rotate around the support frame 200, after the caster wheel 500 is flipped from the vertical state to the horizontal state, the first fixing rod 706 moves to the position of the second through hole 201, insert the first fixing rod 706 into the second through hole 201 and then rotate the cap 707, the cap 707 fixes the first fixing rod 706 on the third protrusion 705 to ensure the stability of the caster wheel 500 after the position is adjusted.

[0048] When adjusting the angle of the pad 600, hold the connecting rod 806 and push the movable rod 812 to move. The movable rod 812 abuts against the guide block and pushes the third fixing rod 807 to move. The third fixing rod 807 drives the fixing block 811 to move out of the fixing groove 8051. Pull the connecting rod 806 to pull the second fixing rod 810 and the third fixing rod 807 out of the first fixing hole 202. Rotate the third connecting block 801 and the fourth connecting block 802. The third connecting block 801 and the fourth connecting block 802 drive the pad 600 to rotate around the support frame 20. After rotating the pad 600 to a horizontal position, the third fixing rod 807 moves to the position of the second fixing hole 203. The connecting rod 806 is pushed so that the second fixing rod 810 and the third fixing rod 807 are inserted into the second fixing hole 203. The fixing block 811 moves with the third fixing rod 807 and is inserted into the fixing groove 8051 to fix the third fixing rod 807. Thus, the second fixing rod 810 and the third fixing rod 807 are fixed in the second fixing groove 8051, ensuring the stability of the pad 600 after the position is adjusted.

[0049] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. An energy-saving and low-noise axial flow fan, comprising a housing, a support frame, a fan, and a motor, wherein the fan is connected to the output shaft of the motor, the fan and the motor are disposed within the housing, and the housing is connected to the support frame, characterized in that: The bottom of the support frame is provided with casters and pads. The casters and pads are rotatably connected to the support frame, and the casters and pads are offset at different angles during use.

2. The energy-saving and low-noise axial flow fan according to claim 1, characterized in that: The support frame is provided with a first connecting device and a second connecting device. The caster wheel is connected to the support frame through the first connecting device, and the pad is connected to the support frame through the second connecting device.

3. The energy-saving and low-noise axial flow fan according to claim 2, characterized in that: The first connecting device includes a first connecting block and a second connecting block. Both the first connecting block and the second connecting block are arc-shaped structures. The first connecting block is provided with a first protrusion, and the second connecting block is provided with a second protrusion. The first protrusion and the second protrusion are connected by screws.

4. The energy-saving and low-noise axial flow fan according to claim 3, characterized in that: The first connecting block is provided with a connecting shaft, which is connected to the universal wheel, and a fixing plate is connected to one end of the connecting shaft.

5. The energy-saving and low-noise axial flow fan according to claim 3, characterized in that: The second connecting block is provided with a third protrusion, the third protrusion is provided with a through cavity, a first fixing rod is inserted through the through cavity, and the support frame is provided with a first through hole and a second through hole corresponding to the first fixing rod, the first through hole and the second through hole are arranged adjacent to each other at 90 degrees.

6. The energy-saving and low-noise axial flow fan according to claim 5, characterized in that: A cap is rotatably connected to the first fixing rod, and the bottom of the cap is provided with an extension, which is threadedly connected to the third protrusion.

7. The energy-saving and low-noise axial flow fan according to claim 3, characterized in that: The second connecting device includes a third connecting block and a fourth connecting block, both of which are arc-shaped structures. The third connecting block has a fourth protrusion, and the fourth connecting block has a fifth protrusion. The fourth protrusion and the fifth protrusion are connected by screws.

8. The energy-saving and low-noise axial flow fan according to claim 7, characterized in that: The third connecting block is provided with a fifth connecting block, the fifth connecting block is provided with a connecting plate, and the pad is provided on the connecting plate.

9. The energy-saving and low-noise axial flow fan according to claim 7, characterized in that: The fourth connecting block is provided with a sixth protrusion, the sixth protrusion is provided with a through groove and a first groove, the first groove is provided on the side wall of the through groove; a second fixing rod is provided in the through groove, the second fixing rod is provided with a connecting rod, the support frame is provided with a first fixing hole and a second fixing hole corresponding to the second fixing rod, the first fixing hole and the second fixing hole are arranged adjacent to each other at 90 degrees.

10. The energy-saving and low-noise axial flow fan according to claim 9, characterized in that: The second fixing rod is provided with a third fixing rod, the third fixing rod is provided with a first guide rod, a first spring and a fixing block, the second fixing rod is provided with a guide groove corresponding to the first guide rod, and the side wall of the through groove is provided with a fixing groove corresponding to the fixing block; the connecting rod is provided with a movable rod, the movable rod is provided with a second spring, and the third fixing rod is provided with a guide block corresponding to the movable rod.

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