Ceiling fan capable of adjusting angles of fan blades

Abstract

The invention discloses a ceiling fan capable of adjusting the angle of fan blades, and relates to the technical field of industrial fans, the ceiling fan comprises a mounting top plate, a driving motor, a base, a rotating seat and a plurality of fan blades, the driving motor is arranged below the mounting top plate, and the output end of the driving motor is fixedly connected with a driving shaft; one end of the driving shaft penetrates through the rotating seat and then is fixedly connected with the base, the rotating seat is fixedly arranged at the upper end of the base, the fan blades are connected with the base through connecting pieces, the fan further comprises a height adjusting mechanism and an angle adjusting mechanism, the height adjusting mechanism is arranged between the mounting top plate and the driving motor, and the angle adjusting mechanism is arranged on the rotating seat. The angle adjusting mechanism is arranged on the inner side and the outer portion of the rotating base. According to the ceiling fan, the height adjusting mechanism is arranged so that the height of the fan blades can be adjusted conveniently, the angle adjusting mechanism is arranged so that the inclination angle of the fan blades can be adjusted after the ceiling fan is installed, the driving motor for driving the fan blades to rotate can provide adjusting power for the fan blades, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of industrial fans, in particular to a ceiling fan with adjustable blade angles. Background Art

[0002] Industrial fans are usually suspended on the top of industrial production workshops, and the fan blades are driven to rotate by the driving parts to achieve the air supply effect. They are widely used in large spaces in industrial plants, logistics warehousing and other fields. They can promote air movement and form a moving and circulating airflow field in the space, thereby effectively solving the air circulation problem in the space. In the prior art, in order to ensure stable air supply, the fan blades all have a certain inclination angle, but the inclination angle of the fan blades is usually fixed and cannot be adjusted according to the height and use requirements of different industrial production workshops. When the ceiling fan is installed on the top of the workshop, the inclination angle of the blades cannot be adjusted by itself, and there is no lifting structure on the top of the driving part, so the height of the fan blades cannot be adjusted, which makes it impossible to adapt to the occupation range of different lamps, decorations and other items on the top of the workshop.

[0003] Based on this, a ceiling fan with adjustable blade angle is now provided to eliminate the drawbacks of the existing technical solutions. Summary of the invention

[0004] The object of the present invention is to provide a ceiling fan with adjustable blade angles, so as to solve the problem in the background art that the height and angle of the blades cannot be adjusted after the ceiling fan is installed.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A ceiling fan with adjustable blade angles, comprising a mounting top plate, a driving motor, a base, a rotating base and a plurality of blades, wherein the driving motor is arranged below the mounting top plate, the output end of the driving motor is fixedly connected to a driving shaft, one end of the driving shaft passes through the rotating base and is fixedly connected to the base, the rotating base is fixedly arranged at the upper end of the base, and the blades are connected to the base through a connecting piece;

[0007] It also includes a height adjustment mechanism and an angle adjustment mechanism, wherein the height adjustment mechanism is arranged between the mounting top plate and the driving motor, and is used to adjust the position height of the fan blades, and the angle adjustment mechanism is arranged on the inner side and the outer side of the rotating seat, and is used to adjust the flipping and tilting angles of the fan blades;

[0008] The connecting part includes a plurality of fixed blocks fixedly arranged on the outer wall of the base, a groove is opened inside the fixed block, a rotating rod is rotatably arranged inside the groove, a sleeve is fixedly arranged on the side of the fan blade close to the base, one end of the rotating rod is inserted into the sleeve and fixedly connected to the sleeve by a plurality of bolts.

[0009] Preferably, the height adjustment mechanism includes an adjusting motor fixedly mounted on the lower surface of the mounting top plate, the output end of the adjusting motor is fixedly connected to a reciprocating screw, the outer thread of the reciprocating screw is provided with a lifting block, the cross-section of the lifting block is arranged in a "U" shape, the driving motor is fixedly mounted on the bottom of the lifting block, the bottom of the reciprocating screw is rotatably connected to a limit plate, and the limit plate is arranged inside the lifting block.

[0010] Preferably, the angle adjustment mechanism includes a chamber arranged inside the rotating seat, a first bevel gear is fixedly installed on the outer side of the driving shaft, the first bevel gear is arranged inside the chamber, a plurality of second bevel gears are meshedly arranged at the lower end of the first bevel gear, a plurality of clutches are fixedly installed inside the chamber, the input shafts of the clutches are connected to the corresponding gear shafts of the second bevel gears, the output shaft of the clutch is connected to the rotating shaft, the other end of the rotating shaft is rotatably connected to the rotating seat and extends to the outside of the rotating seat, and a transmission member for driving the fan blades to rotate is provided on one side of the rotating shaft.

[0011] Preferably, the transmission member includes a worm wheel fixedly mounted on a rotating rod, a worm being meshed with the top of the worm wheel, the worm being connected to a base via a first support frame, one end of the worm extending to the outside of the first support frame and being fixedly connected to a first gear, a second gear being meshed with the top of the first gear, the second gear being connected to the base via a second support frame, a third bevel gear being fixedly connected to one end of a gear shaft of the second gear, a fourth bevel gear being meshed with one side of the third bevel gear, and the gear shaft of the fourth bevel gear being fixedly connected to the rotating shaft.

[0012] Preferably, a plurality of groups of screw holes are evenly arranged on the surface of the rotating rod, and the size of the rotating rod is compatible with the size of the sleeve.

[0013] Preferably, guide rods are symmetrically mounted on the upper surface of the limit plate, the other ends of the guide rods are connected to the mounting top plate, and the lifting block is slidably connected to the guide rods.

[0014] Preferably, the size specifications of the first gear and the second gear are matched, and the diameter of the fourth bevel gear is smaller than the diameter of the second gear.

[0015] Preferably, the number of the second bevel gear, the clutch and the fan blades are consistent.

[0016] Preferably, a controller is provided on one side of the mounting top plate, and the controller is electrically connected to the driving motor, the regulating motor, and the clutch.

[0017] Preferably, the transmission member further comprises a flexible shaft fixedly connected to the end of the worm, and the other end of the flexible shaft is fixedly connected to the rotating shaft.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The invention is provided with a height adjustment mechanism, which is convenient for adjusting the position and height of the fan blades, so that it can adapt to the installation requirements of different industrial workshops, avoid interfering with the position of lamps, decorations and other items, and has good practicality;

[0020] 2. The present invention is provided with an angle adjustment mechanism, so that after the ceiling fan is installed, the inclination angle of the fan blades can be adjusted. When the angle needs to be adjusted, the clutch is started, so that the driving motor driving the fan blades to rotate can provide adjustment power for the fan blades through the mutual cooperation between the gears, thereby reducing the production cost. When the angle does not need to be adjusted, the clutch is in a closed state, so that the fan blades will not be tilted during the rotation of the ceiling fan.

[0021] 3. The present invention is provided with a connecting piece, which makes it easy to disassemble the fan blades from the base, facilitates subsequent maintenance operations, and can increase the rotation range and area of ​​the fan blades to achieve an extension effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of one side of Example 1.

[0023] Figure 2 This is a schematic diagram of the structure of the other side of Example 1.

[0024] Figure 3 This is a schematic structural diagram of the height adjustment mechanism of Example 1.

[0025] Figure 4 This is a schematic diagram of the internal structure of Example 1.

[0026] Figure 5 For Example 1 Figure 4 Enlarged view of point A in the middle.

[0027] Figure 6 For Example 1 Figure 4 Enlarged view of point B in the middle.

[0028] Figure 7 This is a schematic diagram of the local structure of Example 1.

[0029] Figure 8 This is a schematic diagram of the structure of Example 2.

[0030] Fig. 9 This is a schematic structural diagram of the angle adjustment mechanism of Example 2.

[0031] Fig.10 For Example 2 Fig. 9 Enlarged view of point C in the middle.

[0032] Notes on figure marks: installing top plate 101, driving motor 102, base 103, rotating seat 104, fan blades 105, driving shaft 106, connecting piece 200, fixing block 201, rotating rod 202, sleeve 203, height adjustment mechanism 300, adjusting motor 301, reciprocating screw 302, lifting block 303, limiting plate 304, guide rod 305, angle adjustment mechanism 400, chamber 401, first bevel gear 402, second bevel gear 403, clutch 404, rotating shaft 405, worm wheel 406, worm 407, first support frame 408, first gear 409, second gear 410, second support frame 411, third bevel gear 412, fourth bevel gear 413, flexible shaft 414. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] Example 1

[0035] In this embodiment, if Figure 1-Figure 7 As shown, a ceiling fan with adjustable blade angle includes a mounting top plate 101, a driving motor 102, a base 103, a rotating base 104 and a plurality of blades 105. The driving motor 102 is arranged below the mounting top plate 101. The output end of the driving motor 102 is fixedly connected to a driving shaft 106. One end of the driving shaft 106 passes through the rotating base 104 and is fixedly connected to the base 103. The rotating base 104 is fixedly arranged at the upper end of the base 103. The blades 105 are connected to the base 103 through a connecting piece 200, so that the blades 105 can be repaired and replaced, and are easy to disassemble.

[0036] The fan also includes a height adjustment mechanism 300 and an angle adjustment mechanism 400. The height adjustment mechanism 300 is arranged between the mounting top plate 101 and the driving motor 102, and is used to adjust the position height of the fan blade 105. The angle adjustment mechanism 400 is arranged on the inner side and the outer side of the rotating seat 104, and is used to adjust the flipping and tilting angle of the fan blade 105. Before the ceiling fan with adjustable fan blade angle is used, first check whether the ceiling fan can be used normally, and then fix the mounting top plate 101 at a specified position by a plurality of bolts, so that the ceiling fan enters a ready-to-use state.

[0037] The connecting member 200 includes a plurality of fixed blocks 201 fixedly arranged on the outer wall of the base 103, a groove is opened inside the fixed block 201, a rotating rod 202 is rotatably arranged inside the groove, a sleeve 203 is fixedly arranged on the side of the fan blade 105 close to the base 103, one end of the rotating rod 202 is inserted into the sleeve 203, and is fixedly connected to the sleeve 203 by a plurality of bolts, so that the fan blade 105 can be easily disassembled and the subsequent cleaning and replacement operations are facilitated.

[0038] Among them Figure 1 - Figure 4 As shown, the height adjustment mechanism 300 includes an adjustment motor 301 fixedly mounted on the lower surface of the mounting top plate 101. After the adjustment motor 301 is started, it drives the reciprocating screw 302 to rotate, thereby enabling the lifting block 303 to move up and down along the direction of the guide rod 305 and maintain a stable state during movement. The output end of the adjustment motor 301 is fixedly connected to the reciprocating screw 302, and the outer side thread of the reciprocating screw 302 is provided with the lifting block 303. The cross-section of the lifting block 303 is set in a "U" shape to ensure the normal operation of the ceiling fan. The driving motor 102 is fixedly mounted on the bottom of the lifting block 303, and the bottom of the reciprocating screw 302 is rotatably connected to the limit plate 304. The limit plate 304 is arranged inside the lifting block 303. The limit plate 304 has a limiting effect to limit the moving distance of the lifting block 303.

[0039] Among them Figure 2-Figure 7 As shown, the angle adjustment mechanism 400 includes a chamber 401 arranged inside the rotating seat 104, a first bevel gear 402 is fixedly installed on the outer side of the driving shaft 106, the first bevel gear 402 is arranged inside the chamber 401, and a plurality of second bevel gears 403 are meshed at the lower end of the first bevel gear 402, and a plurality of clutches 404 are fixedly installed inside the chamber 401. The driving motor 102 serves as a power source and starts to rotate after receiving a start signal. The clutch 404 is located between the second bevel gear 403 and the rotating shaft 405 and is used to control the transmission of power. When the clutch 404 is energized, the first bevel gear 403 is rotated. The rotational power of the second bevel gear 403 is transmitted to the rotating shaft 405, causing the rotating shaft 405 to rotate, thereby driving other components to transmit, and realizing the angle adjustment operation of the fan blade 105. When the power is off, the clutch 404 will cut off the power transmission, causing the rotating shaft 405 to stop working. The input shaft of the clutch 404 is connected to the gear shaft of the corresponding second bevel gear 403, and the output shaft of the clutch 404 is connected to the rotating shaft 405. The other end of the rotating shaft 405 is rotatably connected to the rotating seat 104 and extends to the outside of the rotating seat 104. A transmission member is provided on one side of the rotating shaft 405 for driving the fan blade 105 to rotate.

[0040] Among them Figure 4-Figure 7As shown, the transmission member includes a worm wheel 406 fixedly mounted on the rotating rod 202, a worm 407 is meshed at the top of the worm wheel 406, the worm 407 is connected to the base 103 through a first support frame 408, one end of the worm 407 extends to the outside of the first support frame 408 and is fixedly connected to a first gear 409, the worm 407 and the worm wheel 406 cooperate with each other to have self-locking properties, so as to avoid the angle deviation of the fan blade 105 when it is not adjusted, so as to ensure the normal operation of the ceiling fan during operation, and a second gear 410 is meshed at the top of the first gear 409, and the second gear 410 is meshed with the base through a second support frame 411. 103 is connected, one end of the gear shaft of the second gear 410 is fixedly connected with the third bevel gear 412, and one side of the third bevel gear 412 is meshingly provided with a fourth bevel gear 413, and the gear shaft of the fourth bevel gear 413 is fixedly connected to the rotating shaft 405. When the angle needs to be adjusted, the clutch 404 is started, and the driving shaft 106 drives the first bevel gear 402 to rotate, and then drives the second bevel gear 403 and the rotating shaft 405 to rotate, and transmits the rotational power to the fourth bevel gear 413, and drives the worm 407 to rotate through the meshing transmission between the bevel gears and the gears, and then drives the worm wheel 406 and the fan blades 105 to rotate, so as to realize the angle adjustment operation.

[0041] Among them Figure 4 and Figure 5 As shown, a plurality of groups of screw holes are evenly arranged on the surface of the rotating rod 202, and the size specifications of the rotating rod 202 are matched with the size specifications of the sleeve 203, so that the sleeve 203 can be moved to any position of the rotating rod 202 for installation and limiting operation, which is convenient for adjusting the rotation range of the fan blade 105 to achieve the extension effect.

[0042] Among them Figure 1 - Figure 4 As shown, guide rods 305 are symmetrically installed on the upper surface of the limit plate 304 to play a guiding role. The other end of the guide rod 305 is connected to the mounting top plate 101. The lifting block 303 is slidably connected to the guide rod 305, so that the lifting block 303 can move smoothly along the direction of the guide rod 305, which is convenient for adjusting the position distance between the fan blade 105 and the mounting top plate 101 and increasing the stability of the connection.

[0043] Among them Figure 7 As shown, the size specifications of the first gear 409 and the second gear 410 are adapted to each other, and the diameter of the fourth bevel gear 413 is smaller than the diameter of the second gear 410 to avoid interference between components, so that the fourth bevel gear 413 will not affect the transmission operation between the worm 407 and the worm wheel 406.

[0044] Among them Figure 1-Figure 7As shown, the number of the second bevel gear 403, the clutch 404 and the fan blades 105 are consistent, which increases the overall practicality of the ceiling fan with adjustable fan blade angles and ensures the normal operation of the height adjustment mechanism 300 and the angle adjustment mechanism 400.

[0045] Among them Figure 1 As shown, a controller is provided on one side of the mounting top plate 101, and the controller is electrically connected to the drive motor 102, the adjustment motor 301, and the clutch 404. The controller is electrically connected to the control switch assembly in the industrial production workshop, so as to facilitate the control of electrical components to execute corresponding instructions and facilitate adjustment.

[0046] Example 2

[0047] The difference from Example 1 is that Figure 8-Figure 10 As shown, the transmission member also includes a flexible shaft 414 fixedly connected to the end of the worm 407, and the other end of the flexible shaft 414 is fixedly connected to the rotating shaft 405. Both ends of the flexible shaft 414 are provided with couplings for adaptability.

[0048] When in use, first fix the mounting top plate 101 at the specified position by a number of bolts. When the height of the fan blade 105 needs to be adjusted, the adjusting motor 301 is started to drive the reciprocating screw rod 302 to rotate, so that the lifting block 303 can move up and down along the direction of the guide rod 305 and can maintain a stable state during movement. When the angle of the fan blade 105 needs to be adjusted, the clutch 404 is started, and the drive shaft 106 drives the first bevel gear 402 to rotate, and then drives the second bevel gear 403 and the rotating shaft 405 to rotate, and transmits the rotational power to the fourth bevel gear 413. Through the meshing transmission between the bevel gear and the gear, the worm 407 is driven to rotate, and then the worm wheel 406 and the fan blade 105 are driven to rotate, thereby realizing the angle adjustment operation. After adjusting to the corresponding angle, the clutch 404 is closed to cut off the power transmission, so that the ceiling fan is in a normal rotation state.

[0049] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A ceiling fan with adjustable blade angle, comprising a mounting top plate (101), a driving motor (102), a base (103), a rotating base (104) and a plurality of blades (105), wherein the driving motor (102) is arranged below the mounting top plate (101), an output end of the driving motor (102) is fixedly connected to a driving shaft (106), one end of the driving shaft (106) passes through the rotating base (104) and is fixedly connected to the base (103), the rotating base (104) is fixedly arranged at the upper end of the base (103), and the blades (105) are connected to the base (103) via a connecting piece (200); It is characterized in that It also includes a height adjustment mechanism (300), which is arranged between the mounting top plate (101) and the driving motor (102) and is used to adjust the position height of the fan blade (105); An angle adjustment mechanism (400), the angle adjustment mechanism (400) being arranged on the inner side and the outer side of the rotating seat (104) and used for adjusting the flipping and tilting angle of the fan blade (105); The connecting member (200) comprises a plurality of fixed blocks (201) fixedly arranged on the outer wall of the base (103); a groove is provided inside the fixed block (201); a rotating rod (202) is rotatably arranged inside the groove; a sleeve (203) is fixedly arranged on a side of the fan blade (105) close to the base (103); one end of the rotating rod (202) is inserted into the sleeve (203) and is fixedly connected to the sleeve (203) by a plurality of bolts.

2. A ceiling fan with adjustable blade angle according to claim 1, characterized in that: The height adjustment mechanism (300) comprises an adjustment motor (301) fixedly mounted on the lower surface of the mounting top plate (101); the output end of the adjustment motor (301) is fixedly connected to a reciprocating screw rod (302); the outer side of the reciprocating screw rod (302) is provided with a lifting block (303) through a thread; the cross section of the lifting block (303) is arranged in a "U" shape; the drive motor (102) is fixedly mounted on the bottom of the lifting block (303); the bottom of the reciprocating screw rod (302) is rotatably connected to a limit plate (304); and the limit plate (304) is arranged inside the lifting block (303).

3. A ceiling fan with adjustable blade angle according to claim 2, characterized in that: The angle adjustment mechanism (400) comprises a chamber (401) arranged inside the rotating seat (104); a first bevel gear (402) is fixedly installed on the outer side of the driving shaft (106); the first bevel gear (402) is arranged inside the chamber (401); a plurality of second bevel gears (403) are meshedly arranged at the lower end of the first bevel gear (402); a plurality of clutches (404) are fixedly installed inside the chamber (401); the input shafts of the clutches (404) are connected to the gear shafts of the corresponding second bevel gears (403); the output shaft of the clutch (404) is connected to a rotating shaft (405); the other end of the rotating shaft (405) is rotatably connected to the rotating seat (104) and extends to the outer side of the rotating seat (104); and a transmission member for driving the fan blades (105) to rotate is arranged on one side of the rotating shaft (405).

4. A ceiling fan with adjustable blade angle according to claim 3, characterized in that: The transmission member comprises a worm wheel (406) fixedly mounted on the rotating rod (202); a worm (407) is meshedly arranged at the top of the worm wheel (406); the worm (407) is connected to the base (103) via a first support frame (408); one end of the worm (407) extends to the outside of the first support frame (408) and is fixedly connected to a first gear (409); a second gear (410) is meshedly arranged at the top of the first gear (409); the second gear (410) is connected to the base (103) via a second support frame (411); one end of the gear shaft of the second gear (410) is fixedly connected to a third bevel gear (412); a fourth bevel gear (413) is meshedly arranged on one side of the third bevel gear (412); the gear shaft of the fourth bevel gear (413) is fixedly connected to the rotating shaft (405).

5. A ceiling fan with adjustable blade angle according to claim 1, characterized in that: A plurality of groups of screw holes are evenly arranged on the surface of the rotating rod (202), and the size of the rotating rod (202) is compatible with the size of the sleeve (203).

6. A ceiling fan with adjustable blade angle according to claim 2, characterized in that: A guide rod (305) is symmetrically mounted on the upper surface of the limit plate (304), the other end of the guide rod (305) is connected to the mounting top plate (101), and the lifting block (303) is slidably connected to the guide rod (305).

7. A ceiling fan with adjustable blade angle according to claim 4, characterized in that: The size specifications of the first gear (409) and the second gear (410) are matched, and the diameter of the fourth bevel gear (413) is smaller than the diameter of the second gear (410).

8. A ceiling fan with adjustable blade angle according to claim 4, characterized in that: The number of the second bevel gear (403), the clutch (404) and the fan blades (105) are consistent.

9. A ceiling fan with adjustable blade angle according to claim 4, characterized in that: A controller is provided on one side of the mounting top plate (101), and the controller is electrically connected to the driving motor (102), the regulating motor (301), and the clutch (404).

10. A ceiling fan with adjustable blade angle according to claim 4, characterized in that: The transmission member further comprises a flexible shaft (414) fixedly connected to the end of the worm (407), and the other end of the flexible shaft (414) is fixedly connected to the rotating shaft (405).

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