Hub structure of axial flow fan

Abstract

The utility model discloses a hub structure of an axial flow fan, which relates to the technical field of axial flow fans, and comprises a shell, a motor, fan blades and an adjusting structure are arranged in the shell, the adjusting structure comprises a concave plate, the concave plate is movably arranged in the shell through four bolts, and the concave plate is connected with the motor through the four bolts. A supporting rod and a one-way lead screw are fixedly arranged on the inner bottom face and the inner top face of the inner side of the concave plate correspondingly, a limiting rod is slidably arranged outside the one-way lead screw, and an operation handle is rotationally arranged at the position, located outside the one-way lead screw, of the top of the limiting rod. The outer bottom face and the outer top face of the motor are rotationally connected with one end of the supporting rod and one end of the one-way lead screw correspondingly, and an output shaft of the motor is fixedly connected with the fan blades. According to the hub structure of the axial flow fan, by arranging the adjusting structure of the hub structure, the using direction of the fan can be changed, the problem that a traditional fan can only be used in a fixed direction is solved, and the hub structure of the axial flow fan has very good practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to a wheel structure of an axial flow fan. Background Art

[0002] Axial flow fans are widely used in many places, such as factories, warehouses, offices, residences and other places for ventilation. Sometimes, the working direction of the axial flow fan will be changed as needed to adapt to work needs.

[0003] However, the impeller structure of a traditional axial flow fan can only work in one direction after installation and cannot change direction according to work needs. In addition, vibration will be generated when the fan blades rotate, and the fan blade ends lack corresponding supporting structures to support and reduce the impact of vibration. Utility Model Content

[0004] The main purpose of the utility model is to provide an impeller structure of an axial flow fan, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A wheel structure of an axial flow fan comprises a housing, wherein a motor, fan blades and an adjustment structure are arranged inside the housing;

[0007] The adjustment structure includes a concave plate, which is movably arranged inside the shell by four bolts, and the inner bottom surface and inner top surface of the concave plate are respectively fixed with a support rod and a one-way screw rod, and the external sliding of the one-way screw rod is provided with a limit rod, and the top of the limit rod is located outside the one-way screw rod and is rotatably provided with an operating handle, the external bottom surface and top surface of the motor are respectively rotatably connected to the support rod and one end of the one-way screw rod, and the output shaft of the motor is fixedly connected to the fan blades.

[0008] As a further solution of the present invention, two reserved holes are respectively provided on both sides of the exterior of the motor, and the two ends of the bottom of the limiting rod are movably arranged on the inner sides of the two reserved holes.

[0009] As a further solution of the present invention, the concave plate and the housing are adaptively matched, and the motor is adaptively matched with the support rod and the one-way screw rod respectively.

[0010] As a further solution of the present invention, the fan blades are adaptively matched with the housing and the concave plate respectively, and the limit rod is adaptively matched with the motor.

[0011] As a further solution of the present invention, a supporting structure is provided at one end of the shell and the inner end of the concave plate, and the supporting structure includes a telescopic storage rack, one end of the telescopic storage rack is fixedly connected to the front of the fan blade, and the other end of the telescopic storage rack is rotatably provided with a bidirectional screw rod, and two movable rods are symmetrically slidably provided on the outside of the bidirectional screw rod, an annular plate 1 is rotatably provided at the inner end of the shell, a threaded rod is movably provided at one end of the concave plate, a bottom plate is provided at one end of the threaded rod, and an annular plate 2 is rotatably provided on the outside of the bottom plate.

[0012] As a further solution of the present invention, two guide rods are fixedly provided on both sides of the rear part of the base plate, and both guide rods pass through one end of the inner side of the concave plate. Several circular holes are opened on the inner sides of the annular plate 1 and the annular plate 2.

[0013] As a further solution of the present invention, one end of the two movable rods passes through both sides of the telescopic storage rack respectively, and the other ends of the two movable rods are movably set on the inner sides of several circular holes respectively, and the two movable rods are adaptively matched with the annular plate 1 and the annular plate 2 respectively.

[0014] The beneficial effects of the utility model are as follows:

[0015] By setting up the adjustment structure and the support structure, when in use, it can be placed at the site where it needs to work to achieve the working conditions. Compared with the traditional wheel structure, the direction of the fan blades can be adjusted, and the support force of the fan blades is improved, thereby reducing the vibration impact of the fan blades;

[0016] By setting bolts to cooperate with the concave plate, the support rod and the one-way screw to cooperate with the motor, the motor can rotate at one end of the support rod and the one-way screw, and the one-way screw and the operating handle can cooperate with the limit rod, so that the bottom two ends of the limit rod cooperate with the reserved holes of the motor to limit the position of the motor, which is conducive to adjusting the direction of the fan blades and fixing the motor.

[0017] By setting a two-way screw rod in conjunction with a movable rod, and annular plate one and annular plate two in conjunction with the movable rod, the fan blades are respectively driven by the telescopic rack and the movable rod to rotate at the inner end of the shell and the outside of the bottom plate. The setting of the threaded rod and the guide rod is conducive to adjusting the position of the annular plate two, which is convenient for adjusting the rotation of the motor and the fan blades. The setting of the annular plate one and annular plate two is conducive to strengthening the supporting force of the fan blades, thereby reducing the vibration impact caused by the fan blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the impeller structure of an axial flow fan of the present invention;

[0019] Figure 2This is a schematic diagram of the cross-sectional three-dimensional structure of the wheel structure of an axial flow fan of the present invention. Figure 1 ;

[0020] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the wheel structure of an axial flow fan of the present invention. Figure 2 ;

[0021] Figure 4 This is a schematic cross-sectional side view of the impeller structure of an axial flow fan according to the present invention.

[0022] In the figure: 1. Housing; 2. Motor; 3. Fan blades; 4. Adjustment structure; 5. Concave plate; 6. Bolt; 7. Support rod; 8. One-way screw; 9. Limit rod; 10. Support structure; 11. Telescopic storage rack; 12. Two-way screw; 13. Movable rod; 14. Annular plate 1; 15. Threaded rod; 16. Bottom plate; 17. Guide rod; 18. Annular plate 2. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-4 As shown, an axial flow fan impeller structure includes a housing 1, wherein a motor 2, fan blades 3 and an adjustment structure 4 are arranged inside the housing 1;

[0025] The adjustment structure 4 includes a concave plate 5, which is movably arranged inside the shell 1 by four bolts 6. The inner bottom surface and inner top surface of the concave plate 5 are respectively fixed with a support rod 7 and a one-way screw 8. The external sliding of the one-way screw 8 is provided with a limit rod 9. The top of the limit rod 9 is located outside the one-way screw 8 and is rotatably provided with an operating handle. The external bottom surface and top surface of the motor 2 are respectively rotatably connected to one end of the support rod 7 and the one-way screw 8, and the output shaft of the motor 2 is fixedly connected to the fan blade 3.

[0026] When the direction of use of the fan blades 3 needs to be changed, the bolts 6 are removed, so that the concave plate 5 loses its restriction and the concave plate 5 is pulled out. When the concave plate 5 is pulled out to the maximum value, the operating handle is turned to make the limit rod 9 slide outside the one-way screw rod 8 in the opposite direction of the motor 2, so that the bottom ends of the limit rod 9 are pulled out from the reserved holes at both ends of the motor 2, and then the motor 2 is turned to make the motor 2 and the fan blades 3 rotate one hundred and eighty degrees and then stop. Then, the operating handle is turned to make the limit rod 9 slide in the direction of the motor 2, and then the bottom ends of the limit rod 9 are inserted into the reserved holes of the motor 2 to complete the fixing of the motor 2. Finally, the concave plate 5 is pushed back to the initial position, and the concave plate 5 and the housing 1 are fixed by the bolts 6 to complete the adjustment of the use direction of the fan blades 3.

[0027] In this embodiment, two reserved holes are respectively provided on both sides of the exterior of the motor 2 , and the two ends of the bottom of the limiting rod 9 are movably disposed inside the two reserved holes.

[0028] The limiting rod 9 is inserted into the reserved hole to fix the position of the motor 2.

[0029] In this embodiment, the concave plate 5 and the housing 1 are adaptively matched, and the motor 2 and the support rod 7 and the one-way screw rod 8 are adaptively matched respectively.

[0030] The support rod 7 and the one-way screw rod 8 support the motor 2 .

[0031] In this embodiment, the fan blades 3 are adaptively matched with the housing 1 and the concave plate 5 respectively, and the limiting rod 9 is adaptively matched with the motor 2.

[0032] The fan blades 3 rotate inside the housing 1 under the action of the motor 2 .

[0033] In this embodiment, a support structure 10 is provided at one end of the outer shell 1 and the inner end of the concave plate 5. The support structure 10 includes a telescopic storage rack 11. One end of the telescopic storage rack 11 is fixedly connected to the front of the fan blade 3. The other end of the telescopic storage rack 11 is rotatably provided with a bidirectional screw rod 12. Two movable rods 13 are symmetrically slidably provided on the outside of the bidirectional screw rod 12. An annular plate 14 is rotatably provided at one end of the inner side of the outer shell 1, and a threaded rod 15 is movably provided at one end of the concave plate 5. A bottom plate 16 is provided at one end of the threaded rod 15, and an annular plate 2 18 is rotatably provided on the outside of the bottom plate 16.

[0034] Before pulling out the concave plate 5, rotate the bidirectional screw rod 12 so that the two movable rods 13 move closer to the middle of the bidirectional screw rod 12, so that one end of the movable rod 13 is pulled out from the inner side of the circular hole of the annular plate 14, and then retract the telescopic shelf 11 to release the position restriction of the fan blade 3, so that the concave plate 5 can be pulled out;

[0035] After the fan blades 3 are adjusted, the telescopic rack 11 is fully extended, and then the threaded rod 15 is rotated so that the threaded rod 15 moves with the bottom plate 16 toward the direction of the motor 2. When the threaded rod 15 reaches the appropriate position, the positions of the annular plate 2 18 and the telescopic rack 11 are matched, and the bidirectional screw rod 12 is rotated so that the two movable rods 13 slide toward the inner ends of the annular plate 2 18 until one end of the movable rod 13 is completely inserted into the inner side of the circular hole of the annular plate 2 18, so that the annular plate 2 18 can support the fan blades 3.

[0036] In this embodiment, two guide rods 17 are fixedly provided on both sides of the rear portion of the bottom plate 16. Both guide rods 17 pass through one end of the inner side of the concave plate 5. A plurality of circular holes are provided on the inner sides of the annular plate 14 and the annular plate 2 18.

[0037] The annular plate 14 and the annular plate 2 18 cooperate with the movable rod 13 to support the fan blade 3.

[0038] In this embodiment, one end of the two movable rods 13 passes through both sides of the telescopic storage rack 11, and the other ends of the two movable rods 13 are movably set on the inner sides of several circular holes, and the two movable rods 13 are adaptively matched with the annular plate 14 and the annular plate 2 18 respectively.

[0039] Annular plate 14 rotates along with fan blade 3 at one end inside housing 1 , annular plate 2 18 rotates along with fan blade 3 outside bottom plate 16 , and guide rod 17 limits the position of bottom plate 16 .

[0040] It should be noted that the utility model is a wheel structure of an axial flow fan. When in use, it can be placed in a place where it needs to work to achieve the working conditions.

[0041] When the fan blade 3 needs to be changed in the use direction, the bolt 6 is removed, so that the concave plate 5 loses its restriction and the concave plate 5 is pulled out. When the concave plate 5 is pulled out to the maximum value, the operating handle is turned to make the limiting rod 9 slide outside the one-way screw rod 8 in the opposite direction of the motor 2, so that the bottom ends of the limiting rod 9 are pulled out from the reserved holes at both ends of the motor 2, and the motor 2 is rotated to make the motor 2 and the fan blade 3 rotate 180 degrees and then stop. The operating handle is then turned to make the limiting rod 9 slide in the direction of the motor 2, so that the bottom ends of the limiting rod 9 are inserted into the reserved holes of the motor 2 to complete the fixing of the motor 2. Finally, the concave plate 5 is pushed back to the initial position, and the concave plate 5 and the housing 1 are fixed by the bolts 6, and the adjustment of the use direction of the fan blade 3 is completed.

[0042] During the process, before pulling out the concave plate 5, rotate the bidirectional screw rod 12 so that the two movable rods 13 move closer to the middle of the bidirectional screw rod 12, so that one end of the movable rod 13 is pulled out from the inner side of the circular hole of the annular plate 14, and then the telescopic shelf 11 is retracted and adjusted to release the position restriction of the fan blade 3, so that the concave plate 5 can be pulled out;

[0043] After the fan blades 3 are adjusted, the telescopic rack 11 is fully extended, and then the threaded rod 15 is rotated so that the threaded rod 15 moves with the bottom plate 16 toward the direction of the motor 2. When the threaded rod 15 reaches the appropriate position, the positions of the annular plate 2 18 and the telescopic rack 11 are matched, and the bidirectional screw rod 12 is rotated so that the two movable rods 13 slide toward the inner ends of the annular plate 2 18 until one end of the movable rod 13 is completely inserted into the inner side of the circular hole of the annular plate 2 18, so that the annular plate 2 18 can support the fan blades 3.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An axial flow fan impeller structure, comprising a housing (1), characterized in that: The housing (1) is provided with a motor (2), fan blades (3) and an adjustment structure (4); The adjustment structure (4) comprises a concave plate (5), the concave plate (5) is movably arranged inside the housing (1) by four bolts (6), the inner bottom surface and the inner top surface of the concave plate (5) are respectively fixedly provided with a support rod (7) and a one-way screw rod (8), the outer sliding surface of the one-way screw rod (8) is provided with a limit rod (9), the top of the limit rod (9) is located outside the one-way screw rod (8) and is rotatably provided with an operating handle, the outer bottom surface and the top surface of the motor (2) are respectively rotatably connected to one end of the support rod (7) and the one-way screw rod (8), and the output shaft of the motor (2) is fixedly connected to the fan blade (3).

2. The impeller structure of an axial flow fan according to claim 1, characterized in that: Two reserved holes are respectively provided on both sides of the exterior of the motor (2), and the two ends of the bottom of the limiting rod (9) are movably arranged on the inner sides of the two reserved holes.

3. The impeller structure of an axial flow fan according to claim 1, characterized in that: The concave plate (5) and the housing (1) are adaptively matched, and the motor (2) and the support rod (7) and the one-way screw rod (8) are adaptively matched.

4. The impeller structure of an axial flow fan according to claim 1, characterized in that: The fan blades (3) are respectively adapted to match the housing (1) and the concave plate (5), and the limiting rod (9) is adapted to match the motor (2).

5. The impeller structure of an axial flow fan according to claim 1, characterized in that: A support structure (10) is provided at one end of the shell (1) and at one end of the inner side of the concave plate (5), and the support structure (10) includes a telescopic storage rack (11), one end of the telescopic storage rack (11) is fixedly connected to the front of the fan blade (3), and the other end of the telescopic storage rack (11) is rotatably provided with a bidirectional screw rod (12), and two movable rods (13) are symmetrically slidably provided on the outside of the bidirectional screw rod (12), an annular plate 1 (14) is rotatably provided on one end of the inner side of the shell (1), a threaded rod (15) is movably provided on one end of the concave plate (5), a bottom plate (16) is provided at one end of the threaded rod (15), and an annular plate 2 (18) is rotatably provided on the outside of the bottom plate (16).

6. The impeller structure of an axial flow fan according to claim 5, characterized in that: Two guide rods (17) are fixedly provided on both sides of the rear portion of the bottom plate (16), and both guide rods (17) pass through one end of the inner side of the concave plate (5). A plurality of circular holes are provided on the inner sides of the annular plate 1 (14) and the annular plate 2 (18).

7. The impeller structure of an axial flow fan according to claim 6, characterized in that: One end of the two movable rods (13) respectively passes through the two sides of the telescopic storage rack (11), and the other ends of the two movable rods (13) are movably arranged on the inner sides of a plurality of circular holes. The two movable rods (13) are respectively adaptively matched with the annular plate 1 (14) and the annular plate 2 (18).

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