Fan device capable of adjusting blade angle

Abstract

The utility model relates to the field of fans, and discloses a fan device capable of adjusting blade angles, which comprises a fan shell, a support frame is fixedly connected inside the fan shell, a driving component used for providing power is fixedly connected outside the support frame, a transmission shaft is fixedly connected inside the driving component, and the transmission shaft is fixedly connected inside the fan shell. The outer portion of the transmission shaft is rotatably connected with a fan cover end, the outer portion of the fan cover end is slidably connected with a sliding shell, the interior of the sliding shell is fixedly connected with a first limiting sliding groove, the interior of the first limiting sliding groove is slidably connected with a first connecting rod, and the interior of the first connecting rod is fixedly connected with fan blades. According to the utility model, under the movement of the adjusting motor, the adjusting rod drives the fan blades to adjust the angles of the blades, so that the fan device can efficiently and reliably meet various ventilation requirements, and is smoother in operation and longer in service life.

Description

Technical Field

[0001] The utility model relates to the field of fans, and in particular to a fan device with adjustable blade angles. Background Art

[0002] An adjustable-blade fan device, capable of varying air volume and direction by adjusting the blade angle, is widely used in industrial ventilation, air conditioning systems, and agricultural irrigation. By optimizing airflow direction and intensity, this device improves energy efficiency and system adaptability, meeting ventilation and cooling requirements in diverse environments and environments.

[0003] In the prior art, some fan devices with adjustable blade angles do not use fan devices with blade adjustment and up and down angle adjustment. During operation, they may encounter reduced efficiency, increased noise, vibration problems, and maintenance difficulties. Although this simplifies the design and manufacturing process, it will bring a series of problems in actual application. Therefore, a fan device with adjustable blade angle is proposed to solve the above problems. Utility Model Content

[0004] In order to remedy the above deficiencies, the present invention provides a fan device with adjustable blade angles, aiming to improve the problem in the prior art that some devices are unable to adjust the blade angles.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is connected to the drive shaft of the fan cover, and the cam is connected to the drive shaft by the shaft.

[0007] As a further description of the above technical solution:

[0008] The outside of the fan housing is fixedly connected to a fixing column 1, the outside of the fixing column 1 is fixedly connected to the housing, the inside of the fixing column 1 is fixedly connected to a driving gear, the inside of the housing is rotatably connected to a driven gear, the inside of the driven gear is rotatably connected to a connecting rod 3, the outside of the connecting rod 3 is rotatably connected to a fixing column 2, the outside of the fixing column 2 is fixedly connected to a fixed base plate, and the outside of the connecting rod 3 is rotatably connected to a ratchet;

[0009] As a further description of the above technical solution:

[0010] The outside of the support frame is fixedly connected to a resistor, the outside of the resistor is connected to a connecting wire, the outside of the connecting wire is fixedly connected to a switch, the inside of the fan housing is fixedly connected to an air inlet grille, and the inside of the fan housing is fixedly connected to an air outlet grille;

[0011] As a further description of the above technical solution:

[0012] The outer portion of the housing is fixedly connected to a first fixing plate, the outer portion of the housing is fixedly connected to a second fixing plate, and the outer portion of the second fixing plate is fixedly connected to a base;

[0013] As a further description of the above technical solution:

[0014] The outside of the base is fixedly connected to a fixing plate three, the bottom of the fixing plate three is fixedly connected to a fixing block, the bottom of the base is fixedly connected to a fixing plate four, and the bottom of the fixing plate four is fixedly connected to a universal wheel;

[0015] As a further description of the above technical solution:

[0016] The outer portion of the driving gear is meshingly connected with the outer portion of the driven gear;

[0017] As a further description of the above technical solution:

[0018] The drive assembly includes a motor, and the outer portion of the transmission shaft is fixedly connected to the drive end of the motor;

[0019] As a further description of the above technical solution:

[0020] The adjustment component includes an adjustment motor, and the outer portion of the second connecting rod is fixedly connected to the driving end of the adjustment motor.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by starting the motor, the motor drives the transmission shaft to rotate, and under the movement of the fan cover end, it slides inside the sliding shell. Under the movement of the adjustment motor, the connecting rod moves in the limiting slide groove. Under the movement of the adjustment motor, the adjustment rod drives the fan blades to adjust the angle of the blades, thereby enabling the fan device to efficiently and reliably meet various ventilation needs, with smoother operation and longer service life.

[0023] 2. In the present invention, by starting the motor, the motor drives the driving gear to rotate. Under the movement of the driving gear, the driving gear rotates outside the driven gear. Under the movement of the driving gear, the connecting rod drives the pawl to rotate to prevent the connecting rod from rotating in the opposite direction under certain circumstances, thereby realizing the adjustment of the upper and lower angles of the entire fan device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a fan device with adjustable blade angle proposed by the present invention;

[0025] Figure 2 This is a schematic structural diagram of a fan blade of a fan device with adjustable blade angle proposed by the present invention;

[0026] Figure 3 This is a schematic structural diagram of a support frame of a fan device with adjustable blade angle proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the pawl structure of a fan device with adjustable blade angle proposed by the utility model;

[0028] Figure 5 This is a structural schematic diagram of a fan cover end of a fan device with adjustable blade angle proposed by the present invention;

[0029] Figure 6 This is a schematic structural diagram of the gear of a fan device with adjustable blade angle proposed by the utility model.

[0030] Legend:

[0031] 1. Fan casing; 2. Support frame; 3. Motor; 4. Drive shaft; 5. Fan cover end; 6. Sliding shell; 7. Limit slide 1; 8. Connecting rod 1; 9. Fan blades; 10. Adjusting rod; 11. Limit slide 2; 12. Circular roller; 13. Connecting rod 2; 14. Adjusting motor; 15. Fixing frame; 16. Resistor; 17. Connecting wire; 18. Switch; 19. Air inlet grille; 20. Air outlet grille; 21. Fixing column 1; 22. Housing; 23. Driving gear; 24. Driven gear; 25. Connecting rod 3; 26. Fixing column 2; 27. Fixed bottom plate; 28. Ratchet; 29. ​​Fixing plate 1; 30. Fixing plate 2; 31. Base; 32. Fixing plate 3; 33. Fixing block; 34. Fixing plate 4; 35. Universal wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figures 1 to 2 The present invention provides an embodiment of a fan device with adjustable blade angle, comprising a fan housing 1, which serves as the external protective structure of the entire fan device and is typically made of corrosion-resistant and high-temperature-resistant materials such as aluminum alloy or engineering plastics. A support frame 2 is fixedly connected to the interior of the fan housing 1 for supporting and securing internal components to ensure the stability of the fan during operation. The support frame 2 is typically made of high-strength steel or aluminum alloy, and its design should take into account the effects of vibration and load to ensure good coordination between the various components. A drive assembly for providing power is fixedly connected to the exterior of the support frame 2 and serves as the power source for the fan. The drive assembly typically includes a motor 3 and an associated transmission system. A drive shaft 4 is fixedly connected to the interior of the drive assembly and is made of high-strength material to withstand torque and vibration and ensure good balance to reduce operating noise. The drive shaft 4 is rotatably connected to the exterior of the fan cover 5, which serves as the upper structure of the fan and is primarily used to secure a sliding housing 6 and connect other components. The design of the fan cover 5 should take into account the smoothness of air flow to improve the overall efficiency of the fan. Its material should be consistent with that of the outer shell 22 to ensure overall strength and durability. The outer sliding connection of the fan cover end 5 is connected to the sliding shell 6, allowing the connecting rod 8 to slide within the limiting slide groove 7, thereby adjusting the angle of the fan blade 9. The material of the sliding shell 6 should have a low friction coefficient to ensure smooth sliding and reduce wear. The design of the sliding shell 6 should ensure that it is not easily deformed during use to maintain good working condition.

[0034] The internal fixed connection of the sliding shell 6 is a limited slide groove 7, which provides a sliding track for the connecting rod 8 to ensure its stability and accuracy when adjusting the blade angle. The internal sliding connection of the limited slide groove 7 is connected to the connecting rod 8, which connects the fan blade 9 to the sliding shell 6, and the blade angle is adjusted by its sliding. The connecting rod 8 should have sufficient strength and rigidity to withstand the pressure exerted on the blade by the wind. Its surface can be coated with an anti-corrosion coating to extend its service life. The internal fixed connection of the connecting rod 8 is the fan blade 9, which is a key component of the fan and is responsible for the transportation and flow of air. The shape and material of the blade, such as composite materials or aluminum alloys, should be carefully designed to optimize aerodynamic performance and improve fan efficiency. The adjustable blade angle can be adjusted according to actual needs to achieve the best airflow effect. The outside of the fan blade 9 is fixedly connected with an adjusting rod 10, which is used to connect the fan blade 9 and the limited slide groove 11, and the blade angle is changed through its movement. The design of the adjusting rod 10 should ensure that it will not be deformed or damaged during the adjustment process, and should have good corrosion resistance.

[0035] The external sliding connection of the adjustment rod 10 is provided with a limited slide groove 2 11, which provides a sliding track for the adjustment rod 10 to ensure its stability when adjusting the blade angle. The external sliding connection of the fan cover end 5 is provided with a circular roller 12, which is used for the sliding of the connecting rod 2 13 to help the movement of the adjustment component to be smoother. The material of the roller should have good wear resistance to extend its service life. The design of the roller should ensure that it can rotate freely during use to reduce friction. The external fixed connection of the circular roller 12 is provided with a connecting rod 2 13, which connects the circular roller 12 and the adjustment component and is responsible for transmitting the adjustment power. The strength and rigidity of the connecting rod 2 13 should be sufficient to withstand the force generated during the adjustment process, and its connection method should ensure stability. The external fixed connection of the connecting rod 2 13 is provided with an adjustment component for providing power, which is responsible for controlling the change in the angle of the fan blade 9, usually including an adjustment motor 14 and a related transmission mechanism. The external fixed connection of the adjustment component is provided with a fixing frame 15 to ensure its stability during operation.

[0036] The fan housing 1 is externally fixedly connected to a fixing column 1 21, providing additional support for the fan housing 1. The housing 22 protects the internal components. The fixing column 1 21 is externally fixedly connected to the housing 22. The internal fixing column 21 is internally fixedly connected to a driving gear 23. The rotation of the driving gear 23 drives the rotation of the driven gear 24, thereby adjusting the vertical angle of the entire fan device. The internal rotation of the housing 22 is connected to the driven gear 24. The internal rotation of the driven gear 24 is connected to a connecting rod 3 25, which has excellent wear resistance and strength to ensure stability under high loads. The external rotation of the connecting rod 3 25 is connected to a fixing column 26. The external fixing column 26 is also fixedly connected to a fixed base plate 27. The external rotation of the connecting rod 3 25 is connected to a pawl 28, which prevents the connecting rod 3 25 from rotating in reverse under certain circumstances, ensuring the safety of the fan when it stops. The pawl 28 is designed to ensure that it can be quickly locked when needed and can be freely released when not needed.

[0037] Reference Figures 3 and 4 The support frame 2 is externally fixedly connected to a resistor 16 for regulating the current and controlling the power output of the fan. It is externally fixedly connected to the support frame 2 to ensure its stability and safety. The resistor 16 is internally fixedly connected to a connecting wire 17, which is usually made of high-temperature resistant and wear-resistant materials to ensure that it is not easily damaged during long-term use. The connecting wire 17 is externally fixedly connected to a switch 18, which is usually designed as an easy-to-operate button or toggle switch 18 so that the user can easily start or stop the fan. The fan housing 1 is internally fixedly connected to an air inlet mesh cover 19, which is located inside the fan housing 1 and is responsible for filtering the air entering the fan to prevent large particles such as dust and debris from damaging the fan blades 9. The fan housing 1 is internally fixedly connected to an air outlet mesh cover 20, which is also located inside the fan housing 1 and is responsible for protecting the air outlet of the fan to prevent foreign matter from entering. The design of the air outlet mesh cover 20 focuses on the smoothness of air flow, and usually adopts a mesh structure to reduce airflow resistance and improve the efficiency of the fan. The outer part of the housing 22 is fixedly connected to a fixing plate 1 29, which is usually considered to be tightly matched with the housing 22 to prevent loosening due to vibration or impact. The outer part of the housing 22 is fixedly connected to a fixing plate 2 30, and the outer part of the fixing plate 2 30 is fixedly connected to a base 31, the bottom support structure of the fan device, responsible for bearing the weight of the entire device. The design of the base 31 usually adopts new materials to ensure its stability during operation. The outer part of the base 31 is fixedly connected to a fixing plate 32, and the bottom of the fixing plate 32 is fixedly connected to a fixing block 33, and the bottom of the base 31 is fixedly connected to a fixing plate 4 34, and the bottom of the fixing plate 4 34 is fixedly connected to a universal wheel 35, which is responsible for providing the mobility of the fan device.

[0038] Reference Figures 5 and 6The exterior of the driving gear 23 is meshed with the exterior of the driven gear 24, typically made of high-strength steel or alloy to ensure durability and strength under high loads. The drive assembly includes a motor 3, the power source of the entire device, responsible for providing rotational power. The exterior of the transmission shaft 4 is fixedly connected to the drive end of the motor 3. The adjustment assembly includes an adjustment motor 14, responsible for controlling the angle adjustment of the fan blades 9 to optimize airflow output. The selection of the adjustment motor 14 takes into account its response speed and adjustment accuracy to ensure that the blade angle can be adjusted quickly and accurately. The exterior of the connecting rod 2 13 is fixedly connected to the drive end of the adjustment motor 14.

[0039] Working Principle: Upon starting motor 3, motor 3 begins to rotate and transmits power to fan cover 5 via drive shaft 4. The rotation of fan cover 5 drives sliding housing 6, which in turn moves connecting rod 1 8 within retaining slot 1 7. The movement of connecting rod 1 8 directly affects the angle of fan blades 9, adjusting the fan's airflow output. Simultaneously, adjusting rod 10, through its sliding connection with retaining slot 2 11, further optimizes blade angle adjustment. Through the adjustment assembly, connecting rod 2 13 and circular roller 12 work together to ensure smooth transmission of adjustment power, allowing the angle of fan blades 9 to be adjusted according to actual needs to suit diverse operating environments and user requirements. Both connecting rod 1 8 and adjusting rod 10 possess excellent strength and rigidity to withstand the pressure exerted by wind on fan blades 9 and maintain stable operation. The structural design of the entire device ensures coordinated coordination between all components, maximizing the fan's operating efficiency and stability. During adjustment, friction between all moving parts is minimized, resulting in smoother operation and a longer service life. This fan device efficiently and reliably meets various ventilation requirements.

[0040] By starting the motor 3, the power generated by the drive assembly is transmitted to the driving gear 23 through the transmission shaft 4. The driving gear 23 begins to rotate and engages with the driven gear 24, driving the driven gear 24 to rotate. At this time, the rotation of the driving gear 23 is transmitted to the fixed column 2 26 through the connecting rod three 25, thereby achieving the adjustment of the upper and lower angles of the entire fan device. The connecting rod three 25 and the fixed column two 26 firmly fix the base plate 27. During the adjustment process, the connecting rod three 25 is connected to the pawl 28. The pawl 28 ensures that it can be quickly locked when needed to prevent the connecting rod from rotating in the opposite direction under certain circumstances, thereby ensuring the safety of the fan when it stops. When the fan needs to stop, the pawl 28 can be quickly locked to avoid any accidental reverse rotation, thereby ensuring the safe parking of the fan.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fan device with adjustable blade angle, comprising a fan housing (1), characterized in that: The fan housing (1) is fixedly connected to a support frame (2) on the inside, the support frame (2) is fixedly connected to a drive assembly for providing blade rotation on the outside, the drive assembly is fixedly connected to a transmission shaft (4) on the inside, the transmission shaft (4) is rotatably connected to a fan cover end (5) on the outside, the fan cover end (5) is slidably connected to a sliding shell (6) on the outside, the sliding shell (6) is fixedly connected to a limiting slide groove (7) on the inside, the limiting slide groove (7) is slidably connected to a connecting rod (8) on the inside, and the connecting rod The first (8) is fixedly connected to a fan blade (9) on the inside, the fan blade (9) is fixedly connected to an adjusting rod (10) on the outside, the adjusting rod (10) is slidably connected to a limiting slide groove (11) on the outside, the fan cover end (5) is slidably connected to a circular roller (12) on the outside, the circular roller (12) is fixedly connected to a connecting rod (13) on the outside, the connecting rod (13) is fixedly connected to an adjusting component for adjusting the fan blade angle on the outside, and the adjusting component is fixedly connected to a fixing frame (15) on the outside.

2. A fan device with adjustable blade angle according to claim 1, characterized in that: The outside of the fan housing (1) is fixedly connected to a fixing column 1 (21), the outside of the fixing column 1 (21) is fixedly connected to a housing (22), the inside of the fixing column 1 (21) is fixedly connected to a driving gear (23), the inside of the housing (22) is rotatably connected to a driven gear (24), the inside of the driven gear (24) is rotatably connected to a connecting rod 3 (25), the outside of the connecting rod 3 (25) is rotatably connected to a fixing column 2 (26), the outside of the fixing column 2 (26) is fixedly connected to a fixed base plate (27), and the outside of the connecting rod 3 (25) is rotatably connected to a ratchet (28).

3. The fan device with adjustable blade angle according to claim 1, characterized in that: The support frame (2) is externally fixedly connected to a resistor (16), the resistor (16) is externally connected to a telecommunication terminal (17), the (17) is externally fixedly connected to a switch (18), the fan housing (1) is internally fixedly connected to an air inlet grille (19), and the fan housing (1) is internally fixedly connected to an air outlet grille (20).

4. The fan device with adjustable blade angle according to claim 2, characterized in that: The exterior of the housing (22) is fixedly connected to a first fixing plate (29), the exterior of the housing (22) is fixedly connected to a second fixing plate (30), and the exterior of the second fixing plate (30) is fixedly connected to a base (31).

5. The fan device with adjustable blade angle according to claim 4, characterized in that: The outside of the base (31) is fixedly connected to a fixing plate three (32), the bottom of the fixing plate three (32) is fixedly connected to a fixing block (33), the bottom of the base (31) is fixedly connected to a fixing plate four (34), and the bottom of the fixing plate four (34) is fixedly connected to a universal wheel (35).

6. The fan device with adjustable blade angle according to claim 2, characterized in that: The exterior of the driving gear (23) and the exterior of the driven gear (24) are in meshing connection.

7. The fan device with adjustable blade angle according to claim 1, characterized in that: The drive assembly comprises a motor (3), and the exterior of the transmission shaft (4) is fixedly connected to the drive end of the motor (3).

8. The fan device with adjustable blade angle according to claim 1, characterized in that: The adjustment assembly includes an adjustment motor (14), and the outer portion of the second connecting rod (13) is fixedly connected to the driving end of the adjustment motor (14).

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