Energy-saving fan

By designing a dust suppression mechanism and an adaptive dust removal mechanism, and using the fan's own power to drive the spray system, the problem of dust accumulation during fan operation was solved, achieving efficient spray dust suppression and automatic cleaning, and improving the fan's operating efficiency and stability.

CN121993426APending Publication Date: 2026-05-08SHENGZHOU ZHENGDE ELECTRIC MOTOR CO LTD
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Patent Information

Application Number
CN202610179879.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing energy-saving fans cannot simultaneously perform dust suppression spraying during operation, leading to dust accumulation, which affects air quality and equipment efficiency. In addition, the additional spraying device increases equipment costs and energy consumption.

Method used

The dust suppression mechanism is designed to use components such as gears, idlers, and spray heads to drive the spray system with the power of the fan itself, so as to achieve the coordinated effect of rotating spray and airflow. Combined with an adaptive dust removal mechanism and a fan blade angle adjustment mechanism, it can achieve automatic cleaning and dynamic optimization of air volume and air pressure.

Benefits of technology

It significantly improved the coverage and efficiency of spray dust suppression, suppressed dust generated during operations, improved air quality, reduced energy consumption, enhanced the stability and adaptability of fan operation, and avoided energy waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an energy-saving fan, and relates to the technical field of right rakes of mowers, the energy-saving fan comprises a support frame, the top of the support frame is fixedly connected with a fan shell, the bottom of the support frame is provided with four universal wheels, the circumferential surface of the fan shell is provided with a control box, the interior of the fan shell is fixedly connected with a dual-drive motor, and the dual-drive motor is fixedly connected with the bottom of the support frame. And a rotating shaft is fixedly connected to an output shaft of the dual-drive motor, a rotating disc is fixedly connected to the circumferential face of the rotating shaft, fan blades are arranged on the circumferential face of the rotating disc, and a dust falling mechanism is arranged in the fan shell. Through mutual cooperation of components such as a gear, an idle wheel and a spraying head of the dust falling mechanism, a spraying system is driven by ingeniously utilizing power of a fan, additional energy consumption is not needed, the synergistic effect of rotary spraying and airflow boosting is achieved, the coverage range, uniformity and efficiency of spraying dust falling are remarkably improved, operation dust raising is effectively restrained, and the working efficiency is improved. The energy is saved.
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Description

Technical Field

[0001] This invention belongs to the field of right-hand rake technology for lawnmowers, and in particular relates to an energy-saving fan. Background Technology

[0002] Energy-saving fans are fans that reduce energy consumption through efficient design and advanced technology. These fans are widely used in ventilation, air conditioning, industrial airflow control, and other fields. Their main purpose is to minimize energy consumption while maintaining the same or higher operating efficiency, thereby achieving energy conservation and environmental protection.

[0003] According to a public disclosure (Publication No.: CN222436676U), an energy-saving fan includes a base on which the energy-saving fan body is fixed. The air inlet of the energy-saving fan body is connected to an air inlet pipe, and a support frame is installed inside the air inlet pipe. The support frame is detachably connected to the air inlet pipe, and multiple magnetic wear-resistant plates are installed on the support frame, forming a cylinder. This utility model reduces wear on the inner wall of the air inlet pipe and extends its service life by using magnetic wear-resistant plates. When the magnetic wear-resistant plates wear out and need to be replaced, the support frame can be removed and the magnetic wear-resistant plates replaced. Compared with the prior art of pasting magnetic wear-resistant plates into the air inlet pipe with adhesive, the replacement is simple and does not require replacement of the air inlet pipe, effectively reducing production costs.

[0004] While the precise matching of the energy-saving fan body and the cylindrical assembly can effectively reduce the wear on the inner wall of the air inlet pipe, thus extending the service life of the air inlet pipe and reducing maintenance frequency and related repair costs, in actual use, the fan cannot spray dust to suppress the surrounding environment, which may lead to the accumulation of dust and particulate matter, thereby affecting air quality and negatively impacting the efficiency and stability of equipment operation. Therefore, we propose an energy-saving fan. Summary of the Invention

[0005] The purpose of this invention is to provide an energy-saving fan. Through the design of components such as gears, idlers, and spray heads in the dust suppression mechanism, this invention solves the problems in the prior art where the fan cannot perform simultaneous spray dust suppression during operation, leading to dust accumulation and decreased air quality in the working environment, as well as the need for additional independent spray devices that increase equipment costs and energy consumption.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an energy-saving fan, comprising a support frame, a fan housing fixedly connected to the top of the support frame, four casters at the bottom of the support frame, a control box on the circumferential surface of the fan housing, a dual drive motor fixedly connected inside the fan housing, a rotating shaft fixedly connected to the output shaft of the dual drive motor, a turntable fixedly connected to the circumferential surface of the rotating shaft, fan blades on the circumferential surface of the turntable, and a dust suppression mechanism inside the fan housing; the dust suppression mechanism includes gears fixedly passing through the circumferential surface of the rotating shaft, and the dual drive motors fixedly connected to the circumferential surface of the rotating shaft. The device includes a fixed plate with a support shaft rotatably connected to its side. An idler wheel is fixedly connected to the circumferential surface of the support shaft. A water storage tank is fixedly connected inside the fan housing. A conveying pipe is fixedly passed through the circumferential surface of the water storage tank. A conveying ring is rotatably connected through the inner circumferential surface of the water storage tank. Teeth are fixedly connected to the inner circumferential surface of the conveying ring. A spray head is fixedly passed through the side of the conveying ring. The purpose of this device is to enable the spray head to achieve uniform circumferential spraying for dust suppression without the need for an additional power source to drive the spraying device, effectively saving additional power consumption. At the same time, the rotating spray can improve the dust suppression coverage and efficiency.

[0007] Furthermore, the number of teeth and spray heads is set to several, and they are arranged in a circumferential array along the circumference of the conveying ring. The purpose is to ensure that the coverage area of ​​multiple spray heads can be increased and to avoid dead zones.

[0008] Furthermore, the gear meshes with the idler wheel, and the idler wheel meshes with the teeth, the purpose of which is to ensure that the rotation of the gear can be transmitted to the teeth through the idler wheel for rotation.

[0009] Furthermore, the working surface of the spray head is located directly behind the fan blades. The purpose is to use the directional airflow generated by the rotation of the fan blades to drive the water mist formed by the spray to spread rapidly along the airflow direction, thereby improving the contact efficiency and coverage of the water mist with dust in the air and enhancing the dust suppression effect.

[0010] Furthermore, an adaptive dust removal mechanism is provided on the rear side of the fan housing. The adaptive dust removal mechanism includes a second rotating shaft, which is fixedly connected to another output shaft of the dual drive motor. An expansion ring is fixedly connected to the circumferential surface of the second rotating shaft. A rotating sleeve is rotatably connected to the side of the fan housing. A cleaning plate is fixedly connected to the circumferential surface of the rotating sleeve. A brush is fixedly connected to the side of the cleaning plate. A locking groove is provided inside the rotating sleeve. The purpose of this mechanism is to allow the brush to automatically clean the dust-prone area on the rear side of the fan housing, which is driven by the coefficient of thermal expansion, thereby preventing dust accumulation from causing the internal temperature of the fan housing to become too high and increasing energy consumption.

[0011] Furthermore, the number of cleaning plates and locking grooves is set to several, and they are arranged in a circumferential array along the circumference of the rotating sleeve. The purpose of this is to ensure that the expansion ring can stably drive the rotating sleeve to rotate after it expands through multiple locking grooves.

[0012] Furthermore, the side of the brush contacts the side of the fan housing, and the inside of the locking groove is located on the expansion trajectory of the expansion ring. The purpose of this is to ensure that the expansion ring can accurately enter the locking groove during the expansion process.

[0013] Furthermore, the fan casing is equipped with a blade angle adjustment mechanism, which includes a mounting groove located on the side of the turntable. An electric telescopic rod is fixedly connected inside the mounting groove, and a movable plate is fixedly connected to the telescopic end of the electric telescopic rod. An adjustment plate is hinged to the side of the telescopic movable plate. An adjustment groove is formed on the circumferential surface of the turntable, and the adjustment plate passes through the adjustment groove and is fixedly connected to the bottom end of the blade. A rotation groove is formed on the circumferential surface of the turntable, and a fixed shaft is rotatably connected inside the rotation groove. The circumferential surface of the fixed shaft is fixedly connected to the bottom end of the blade. The purpose of this mechanism is to match the optimal blade angle according to actual exhaust requirements (such as air volume and air pressure), avoid energy waste caused by a fixed blade angle, and improve the operating efficiency of the fan.

[0014] Furthermore, the number of adjustment plates and adjustment slots is set to several, and they are arranged in a circumferential array along the circumference of the turntable. The purpose is to ensure that the adjustment plates can adjust multiple fan blades through the adjustment slots.

[0015] Furthermore, the number of adjusting plates and adjusting slots is equal to the number of fan blades, the purpose of which is to ensure that the adjusting plates can adjust all fan blades synchronously.

[0016] The present invention has the following beneficial effects: This invention cleverly utilizes the power of the fan itself to drive the spray system through the cooperation between components such as gears, idlers, and spray heads in the dust suppression mechanism. Without additional energy consumption, it achieves the synergistic effect of rotating spray and airflow propulsion, significantly improving the coverage, uniformity, and efficiency of spray dust suppression, effectively suppressing dust during operations, and saving energy and protecting the environment.

[0017] This invention achieves automatic dust removal and automatic shutdown based on temperature changes during fan operation by cooperating with components such as the expansion ring, cleaning plate, and locking groove of the adaptive dust removal mechanism and through a temperature-controlled expansion coupling mechanism. This effectively prevents dust accumulation on the shell surface, improves heat dissipation, reduces fan energy consumption, and enhances operational stability and long-term efficiency.

[0018] This invention achieves synchronous and real-time adjustable fan blade angles through the cooperation of components such as the mounting slot, moving plate, and adjustment slot of the fan blade angle adjustment mechanism. This enables the fan to dynamically optimize airflow and air pressure according to operating conditions, effectively avoiding energy waste caused by using a large fan for a small load, and significantly improving the fan's operating efficiency and adaptability to operating conditions.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of the overall three-dimensional appearance of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional cross-section of the present invention; Figure 3 This is a three-dimensional enlarged structural schematic diagram of the dual drive motor of the present invention; Figure 4 This is a three-dimensional enlarged structural schematic diagram of the turntable of the present invention; Figure 5 This is a three-dimensional enlarged structural schematic diagram of the dust removal mechanism of the present invention; Figure 6 This is a three-dimensional enlarged structural schematic diagram of the adaptive dust removal mechanism of the present invention; Figure 7 This is a three-dimensional enlarged structural schematic diagram of the fan blade angle adjustment mechanism of the present invention.

[0022] The attached diagram lists the components represented by each number as follows: 1. Support frame; 2. Fan housing; 3. Casters; 4. Control box; 5. Dual drive motors; 6. Shaft; 7. Turntable; 8. Fan blades; 9. Dust suppression mechanism; 91. Gear; 92. Fixing plate; 93. Support shaft; 94. Idler wheel; 95. Water tank; 96. Conveying pipe; 97. Conveying ring; 98. Tooth; 99. Spray head; 10. Adaptive dust removal mechanism; 101. Expansion ring; 102. Rotating sleeve; 103. Cleaning plate; 104. Locking groove; 105. Second shaft; 106. Brush; 11. Fan blade angle adjustment mechanism; 111. Mounting groove; 112. Electric telescopic rod; 113. Moving plate; 114. Adjusting plate; 115. Adjusting groove; 116. Rotating groove; 117. Fixing shaft. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-7 This invention relates to an energy-saving fan, comprising a support frame 1, a fan housing 2 fixedly connected to the top of the support frame 1, four casters 3 at the bottom of the support frame 1, a control box 4 on the circumferential surface of the fan housing 2, a dual drive motor 5 fixedly connected inside the fan housing 2, a rotating shaft 6 fixedly connected to the output shaft of the dual drive motor 5, a turntable 7 fixedly connected to the circumferential surface of the rotating shaft 6, fan blades 8 on the circumferential surface of the turntable 7, and a dust suppression mechanism 9 inside the fan housing 2; the dust suppression mechanism 9 includes a gear 91 fixedly passing through the circumferential surface of the rotating shaft 6, and a fixing plate 92 fixedly connected to the circumferential surface of the dual drive motor 5. A support shaft 93 is rotatably connected to the side of the fixed plate 92. An idler wheel 94 is fixedly connected to the circumferential surface of the support shaft 93. A water storage tank 95 is fixedly connected inside the fan housing 2. A conveying pipe 96 is fixedly passed through the circumferential surface of the water storage tank 95. A conveying ring 97 is rotatably connected through the inner circumferential surface of the water storage tank 95. Teeth 98 are fixedly connected to the inner circumferential surface of the conveying ring 97. A spray head 99 is fixedly passed through the side of the conveying ring 97. The purpose is to enable the spray head 99 to achieve uniform circumferential spraying for dust suppression without the need for an additional power source to drive the spraying device, effectively saving additional power consumption. At the same time, rotating the spray can improve the dust suppression coverage and efficiency.

[0025] The number of teeth 98 and spray heads 99 is set to a certain number and arranged in a circumferential array along the circumference of the conveying ring 97. The purpose is to ensure that the coverage area of ​​multiple spray heads 99 can be increased and to avoid dead zones.

[0026] Gear 91 meshes with idler gear 94, and idler gear 94 meshes with tooth 98. The purpose is to ensure that the rotation of gear 91 can be transmitted to tooth 98 through idler gear 94 for rotation.

[0027] The working surface of the spray head 99 is located directly behind the fan blade 8. Its purpose is to use the directional airflow generated by the rotation of the fan blade 8 to drive the water mist formed by the spray to spread rapidly along the airflow direction, thereby improving the contact efficiency and coverage of the water mist with dust in the air and enhancing the dust suppression effect.

[0028] An adaptive dust removal mechanism 10 is provided on the rear side of the fan housing 2. The adaptive dust removal mechanism 10 includes a second rotating shaft 105, which is fixedly connected to another output shaft of the dual drive motor 5. An expansion ring 101 is fixedly connected to the circumferential surface of the second rotating shaft 105. A rotating sleeve 102 is rotatably connected to the side of the fan housing 2. A cleaning plate 103 is fixedly connected to the circumferential surface of the rotating sleeve 102. A brush 106 is fixedly connected to the side of the cleaning plate 103. A locking groove 104 is provided inside the rotating sleeve 102. The purpose of this is to allow the brush 106 to automatically clean the dust-prone area on the rear side of the fan housing 2, which is driven by the coefficient of thermal expansion, so as to avoid dust accumulation and excessive internal temperature of the fan housing 2, thereby increasing energy consumption.

[0029] The cleaning plate 103 and the locking groove 104 are arranged in a circumferential array along the circumference of the rotating sleeve 102. The purpose is to ensure that the expansion ring 101 can stably drive the rotating sleeve 102 to rotate after it expands through the multiple locking grooves 104.

[0030] The side of the brush 106 contacts the side of the fan housing 2, and the inside of the locking groove 104 is located on the expansion trajectory of the expansion ring 101. The purpose is to ensure that the expansion ring 101 can accurately enter the locking groove 104 during the expansion process.

[0031] The fan casing 2 is equipped with a blade angle adjustment mechanism 11. The blade angle adjustment mechanism 11 includes a mounting groove 111, which is located on the side of the turntable 7. An electric telescopic rod 112 is fixedly connected inside the mounting groove 111. A movable plate 113 is fixedly connected to the telescopic end of the electric telescopic rod 112. An adjustment plate 114 is hinged to the side of the telescopic movable plate 113. An adjustment groove 115 is provided on the circumferential surface of the turntable 7. The adjustment plate 114 passes through the adjustment groove 115 and is fixedly connected to the bottom end of the blade 8. A rotation groove 116 is provided on the circumferential surface of the turntable 7. A fixed shaft 117 is rotatably connected inside the rotation groove 116. The circumferential surface of the fixed shaft 117 is fixedly connected to the bottom end of the blade 8. The purpose is to match the optimal angle of the blade 8 according to the actual exhaust requirements, such as air volume and air pressure, to avoid energy waste caused by the fixed angle of the blade 8 and improve the operating efficiency of the fan.

[0032] The number of adjusting plates 114 and adjusting slots 115 is set to several, and they are arranged in a circular array along the circumference of the turntable 7. The purpose is to ensure that the adjusting plates 114 can adjust multiple fan blades 8 through the adjusting slots 115.

[0033] The number of regulating plates 114 and regulating slots 115 is equal to the number of fan blades 8, the purpose of which is to ensure that the regulating plates 114 can adjust all fan blades 8 synchronously.

[0034] A specific application of this embodiment is as follows: Before use, water needs to be injected into the water storage tank 95 through the conveying pipe 96, and the operating parameters are set through the control box 4. When the dual drive motor 5 drives the rotating shaft 6 to rotate, the gear 91 fixed on the rotating shaft 6 rotates synchronously. Through the idler wheel 94 meshing with it, the power is transmitted to the teeth 98 of the inner ring of the conveying ring 97, thereby driving the conveying ring 97 to rotate around the axis of the water storage tank 95. Under the action of gravity and rotational centrifugal force, the water in the water storage tank 95 is transported through the channel on the conveying ring 97 to multiple spray heads 99 arranged in a circular array and sprayed out to form water mist. The spray heads 99 are located behind the fan blades 8. The sprayed water mist is carried by the strong airflow generated by the rotation of the fan blades 8 and accelerated to diffuse into the surrounding space, realizing large-scale and high-efficiency spray dust suppression. This mechanism cleverly uses the fan's own power to drive the spray system without additional energy consumption. At the same time, the rotating spray combined with the airflow boost significantly improves the uniformity and effect of dust suppression coverage and effectively suppresses dust during operation.

[0035] The other output shaft of the dual drive motor 5 drives the expansion ring 101 to rotate via the rotating shaft 105. After the fan runs for a period of time, the temperature of the motor and the housing rises, and the expansion ring 101 expands radially due to the heat. Its outer edge is embedded in the locking groove 104 on the inner wall of the rotating sleeve 102, realizing power coupling. The rotation of the expansion ring 101 drives the rotating sleeve 102 to rotate synchronously through the locking groove 104. The cleaning plate 103 and brush 106 fixed on the rotating sleeve 102 rotate accordingly, automatically brushing and cleaning the dust-accumulating surface on the rear side of the fan housing 2. This design realizes that the heat generated during the operation of the fan triggers the expansion coupling, and the dust cleaning is automatically executed. After the fan stops and cools down, the expansion ring 101 contracts and disengages, and the dust cleaning stops. This effectively avoids poor heat dissipation and increased energy consumption caused by dust accumulation on the surface of the housing, and maintains the efficient operation of the fan.

[0036] The bottom end of each fan blade 8 is hinged to the rotating groove 116 of the turntable 7 via a fixed shaft 117. When it is necessary to adjust the angle of the fan blade 8 to change the air volume and air pressure, the electric telescopic rod 112 extends and retracts according to the control signal, pushing the moving plate 113 to move along the mounting groove 111. The moving plate 113 drives the fan blade 8 to rotate around the fixed shaft 117 through the hinged adjusting plate 114, thereby changing its windward angle. All fan blades 8 are linked with the moving plate 113 through the corresponding number of adjusting plates 114 to achieve synchronous angle adjustment. This mechanism allows the fan to optimize the angle of the fan blade 8 in real time according to the actual working conditions, avoiding energy waste caused by a fixed angle, such as using a large motor for a small load, and significantly improving the operating efficiency and adaptability of the fan.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An energy-saving fan, characterized in that, Includes a support frame (1), the top of which is fixedly connected to a fan housing (2), the bottom of which is provided with four casters (3), the circumferential surface of which is provided with a control box (4), the inside of which is fixedly connected with a dual drive motor (5), the output shaft of which is fixedly connected with a rotating shaft (6), the circumferential surface of which is fixedly connected with a turntable (7), the circumferential surface of which is provided with a fan blade (8), and the inside of which is provided with a dust suppression mechanism (9). The dust suppression mechanism (9) includes a gear (91) which is fixedly connected to the circumferential surface of the rotating shaft (6). A fixed plate (92) is fixedly connected to the circumferential surface of the dual drive motor (5). A support shaft (93) is rotatably connected to the side of the fixed plate (92). An idler wheel (94) is fixedly connected to the circumferential surface of the support shaft (93). A water storage tank (95) is fixedly connected inside the fan housing (2). A conveying pipe (96) is fixedly connected to the circumferential surface of the water storage tank (95). A conveying ring (97) is rotatably connected to the inner circumferential surface of the water storage tank (95). Teeth (98) are fixedly connected to the inner circumferential surface of the conveying ring (97). A spray head (99) is fixedly connected to the side of the conveying ring (97).

2. The energy-saving fan according to claim 1, characterized in that, The number of teeth (98) and spray heads (99) is set to several, and they are arranged in a circumferential array along the circumferential surface of the conveying ring (97).

3. An energy-saving fan according to claim 2, characterized in that, The gear (91) meshes with the idler gear (94), and the idler gear (94) meshes with the teeth (98).

4. An energy-saving fan according to claim 3, characterized in that, The working surface of the spray head (99) is located directly behind the fan blade (8).

5. An energy-saving fan according to claim 4, characterized in that, An adaptive dust removal mechanism (10) is provided on the rear side of the fan housing (2). The adaptive dust removal mechanism (10) includes a second rotating shaft (105), which is fixedly connected to another output shaft of the dual drive motor (5). An expansion ring (101) is fixedly connected to the circumferential surface of the second rotating shaft (105). A rotating sleeve (102) is rotatably connected to the side of the fan housing (2). A cleaning plate (103) is fixedly connected to the circumferential surface of the rotating sleeve (102). A brush (106) is fixedly connected to the side of the cleaning plate (103). A locking groove (104) is provided inside the rotating sleeve (102).

6. An energy-saving fan according to claim 5, characterized in that, The number of cleaning plates (103) and locking grooves (104) is set to several, and they are arranged in a circumferential array along the circumferential surface of the rotating sleeve (102).

7. An energy-saving fan according to claim 6, characterized in that, The side of the brush (106) is in contact with the side of the fan housing (2), and the inside of the locking groove (104) is located on the expansion trajectory of the expansion ring (101).

8. An energy-saving fan according to claim 7, characterized in that, The fan housing (2) is provided with a blade angle adjustment mechanism (11). The blade angle adjustment mechanism (11) includes a mounting groove (111). The mounting groove (111) is opened on the side of the turntable (7). An electric telescopic rod (112) is fixedly connected inside the mounting groove (111). A moving plate (113) is fixedly connected to the telescopic end of the electric telescopic rod (112). An adjustment plate (114) is hinged to the side of the telescopic moving plate (113). An adjustment groove (115) is opened on the circumferential surface of the turntable (7). The adjustment plate (114) passes through the adjustment groove (115) and is fixedly connected to the bottom end of the blade (8). A rotation groove (116) is opened on the circumferential surface of the turntable (7). A fixed shaft (117) is rotatably connected inside the rotation groove (116). The circumferential surface of the fixed shaft (117) is fixedly connected to the bottom end of the blade (8).

9. An energy-saving fan according to claim 8, characterized in that, The number of adjustment plates (114) and adjustment grooves (115) is set to several, and they are arranged in a circular array along the circumference of the turntable (7).

10. An energy-saving fan according to claim 9, characterized in that, The number of the regulating plates (114) and regulating grooves (115) is equal to the number of the fan blades (8).

Citation Information

Patent Citations

  • Energy-saving fan

    CN222436676U