CN112648231A - Fan blade structure of centrifugal axial flow fan - Google Patents
Fan blade structure of centrifugal axial flow fan Download PDFInfo
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- CN112648231A CN112648231A CN202011537366.4A CN202011537366A CN112648231A CN 112648231 A CN112648231 A CN 112648231A CN 202011537366 A CN202011537366 A CN 202011537366A CN 112648231 A CN112648231 A CN 112648231A
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- main body
- fixing
- fixedly connected
- fan blade
- knob
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan blade structure of a centrifugal axial flow fan, which comprises a fan blade main body, wherein the fan blade main body comprises a flow guide cover, an adjusting main body, three blades, a fixing ring and a fixing seat, the upper end of the inner side of the flow guide cover is fixedly clamped and installed at the upper end of the adjusting main body, the lower end of the adjusting main body is rotatably inserted and installed at the upper end of the fixing seat, the three blades penetrate through the fixing ring, the blades and the fixing ring are rotatably installed together, the lower end of the fixing ring is fixedly connected to the upper end of the fixing seat, the flow guide cover comprises a cover body and an inserting rod, the upper end of the inserting rod is fixedly connected to the upper end of the inner wall of the cover body, the adjusting main body comprises a knob, a spring plate. The invention relates to the technical field of fan blade equipment, and can facilitate a user to adjust the blade angle, thereby facilitating the device to match different use requirements and better meeting the use requirements.
Description
Technical Field
The invention relates to the technical field of fan blade equipment, in particular to a blade structure of a centrifugal axial flow fan.
Background
Conventional flabellum is fixed knot usually, and the motor of different power way and rotational speed need match corresponding inclination's flabellum just can better performance effect of blowing, and the blade angle of conventional flabellum can't be adjusted, and it is more troublesome to need order specially when causing conventional flabellum to be applied to the fan of different power ways and rotational speed, so the scheme that can alleviate above-mentioned problem urgently needs one kind.
Disclosure of Invention
The present invention is directed to a fan blade structure of a centrifugal axial flow fan, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the fan blade structure of the centrifugal axial flow fan comprises a fan blade main body, wherein the fan blade main body comprises a flow guide cover, an adjusting main body, three blades, a fixing ring and a fixing seat, the upper end of the inner side of the flow guide cover is fixedly clamped and mounted at the upper end of the adjusting main body, the lower end of the adjusting main body is rotatably inserted and mounted at the upper end of the fixing seat, the number of the three blades is three, the three blades penetrate through the fixing ring, the blades and the fixing ring are rotatably mounted together, and the lower end of the fixing ring is fixedly connected to; the air guide sleeve comprises a cover body and an insertion rod, the upper end of the insertion rod is fixedly connected to the upper end of the inner wall of the cover body, the adjusting main body comprises a knob, elastic pieces and a screw rod, the upper end of the screw rod is fixedly connected to the lower end of the knob, a pair of elastic pieces are arranged, the elastic pieces are located on the inner side of the knob, and the upper ends of the elastic pieces and the knob are fixedly connected into a whole; the blades comprise a blade body, a rotating rod and a turbine, the side end of the blade body is fixedly connected with the side end of the rotating rod into a whole, and one end of the rotating rod, which is back to the blade body, is fixedly connected with the side end of the turbine; the fixing ring comprises ring bodies and three first rotating holes, and the first rotating holes are hollowed at the outer ends of the ring bodies; the fixing base includes fixed disk and connecting seat, the lower extreme fixed connection of fixed disk is in the upper end of connecting seat, fixed disk and connecting seat structure as an organic whole, the upper end fixed connection of fixed disk is at the lower extreme of ring body, ring body and fixed disk structure as an organic whole, the lower extreme of lead screw rotates installs the inner at the fixed disk, the bull stick runs through first commentaries on classics hole, the bull stick rotates and installs the inner in first commentaries on classics hole, the turbine assembles together with the lead screw meshing, the lower extreme meshing of shell fragment is installed at ring body upper portion inner wall, the upper end at the knob is installed in the inserted link grafting, the lower extreme of lamellar body is installed together with the knob lock joint, cover the body cover in the outside of adjusting the main part, the lower extreme.
Preferably, the air guide sleeve further comprises an expansion joint, and the expansion joint is arranged at the lower end of the inserted rod.
Preferably, the air guide sleeve further comprises a pair of clamping blocks, the clamping blocks are symmetrically and fixedly connected to the lower end of the inserting rod, and the clamping blocks are movably clamped at the inner end of the upper portion of the knob.
Preferably, the adjusting main body further comprises a pair of finger holes, and the finger holes are hollowed out of the outer end of the elastic piece.
Preferably, the adjusting main body further comprises a pair of clamping teeth, the upper ends of the clamping teeth are fixedly connected to the lower ends of the elastic pieces, the elastic pieces and the clamping teeth are of an integral structure, and the outer ends of the clamping teeth are meshed and mounted at the outer ends of the upper portion of the ring body.
Preferably, the adjusting body further comprises a slot, the slot is symmetrically arranged at the outer end of the knob, the slot is hollowed out in the outer wall of the knob, and the elastic sheet is located on the inner side of the slot.
Preferably, the adjusting main body further comprises a first clamping groove, and the first clamping groove is rotatably clamped at the inner end of the fixed disc.
Preferably, the fixing ring further comprises a second clamping groove, the second clamping groove is formed in the upper end of the ring body, and the inner end of the second clamping groove is meshed with the outer end of the clamping tooth.
Preferably, the fixing seat further comprises a second rotating hole, the second rotating hole is hollowed out and arranged at the upper end of the fixing disc, the lower end of the screw rod is inserted and installed at the inner end of the second rotating hole, the outer wall of the lower wall of the screw rod is slidably supported on the upper wall of the fixing disc, and the first clamping groove and the second rotating hole are rotationally clamped together.
Preferably, the fixing seat further comprises a mounting seat, the mounting seat is fixedly connected with the connecting seat into a whole, the connecting seat is communicated with the inner space of the mounting seat, the outer end of the mounting seat is provided with a threaded hole, and the threaded hole penetrates through the mounting seat and the connecting seat.
Compared with the prior art, the invention has the following beneficial effects:
in the using process, when a user needs to adjust the angle of the blades, the air guide sleeve is firstly pulled out upwards to ensure that the inserted link is separated upwards along the inner wall of the knob, then the air guide sleeve is taken down, the elastic piece is held between hands to ensure that the lower part of the elastic piece deforms inwards and is packed up, so that the lower part of the elastic piece is separated from the ring body, the knob and the ring body lose the fastening relation, then the knob is screwed to drive the screw rod to rotate, the worm gear is driven to rotate by the rotation of the screw rod, the rotating rod is driven to rotate by the rotation of the screw rod, the aim of adjusting the angle of the blade body is fulfilled by changing the inclination angle of the blade body, finally the elastic piece is loosened, the lower end of the elastic piece is squeezed and meshed at the inner end of the ring body again by utilizing the elastic force of the elastic piece to restore, so that, therefore, the stability of the blade adjusting result is guaranteed, the guide cover is covered on the outer side of the adjusting main body again, the adjusting main body is protected by the guide cover, meanwhile, the resistance of the device to air flow during working is reduced by the guide cover, and the practical value of the device is improved; the lower end of the inserted rod can generate inward elastic deformation through the expansion joint, so that the air guide sleeve can be pulled out upwards; the lower end of the inserted link is buckled with the knob through a fixture block; the finger hole is convenient for a user to clamp the finger outside the elastic sheet when operating the elastic sheet, thereby facilitating the purpose of rotating the operation knob by pinching the elastic sheet with the hand; the lower end of the elastic sheet is meshed with the ring body through the latch; the slot is convenient for a user to operate the elastic sheet; the lower end of the screw rod is rotatably installed with the fixed disc through a first clamping groove; the latch is clamped with the inner wall of the upper part of the ring body through a second clamping groove; the lower end of the screw rod is rotatably connected with the fixed disc through a second rotating hole; the device is fixedly installed with a rotor of an external motor through a connecting seat.
Drawings
FIG. 1 is a schematic view of a closed structure of a main body according to the present invention;
FIG. 2 is a schematic view of the disassembled structure of the main body of the present invention;
FIG. 3 is a schematic view of a disassembled structure of the pod of the present invention;
FIG. 4 is a schematic view of the structure of the adjusting body of the present invention;
FIG. 5 is a schematic view of a blade configuration of the present invention;
FIG. 6 is a schematic view of a retaining ring according to the present invention;
fig. 7 is a schematic view of a folding structure of the fixing base of the present invention.
In the figure: 1. a fan blade main body; 2. a pod; 3. adjusting the main body; 4. a blade; 5. a fixing ring; 6. a fixed seat; 7. a cover body; 8. inserting a rod; 9. an expansion joint; 10. a clamping block; 11. a knob; 12. a spring plate; 13. a finger hole; 14. clamping teeth; 15. a slot is formed; 16. a screw rod; 17. a first card slot; 18. a sheet body; 19. a rotating rod; 20. a turbine; 21. a ring body; 22. a second card slot; 23. a first rotary hole; 24. fixing the disc; 25. a second rotary hole; 26. a connecting seat; 27. and (7) mounting a seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships that are relative to each other, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or components must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
Referring to fig. 1-7, an embodiment of the present invention is shown: a fan blade structure of a centrifugal axial flow fan comprises a fan blade main body 1, wherein the fan blade main body 1 comprises a flow guide cover 2, an adjusting main body 3, blades 4, fixing rings 5 and a fixing seat 6, the upper end of the inner side of the flow guide cover 2 is fixedly clamped and installed at the upper end of the adjusting main body 3, the lower end of the adjusting main body 3 is rotatably inserted and installed at the upper end of the fixing seat 6, the number of the blades 4 is three, the blades 4 penetrate through the fixing rings 5, the blades 4 and the fixing rings 5 are rotatably installed together, and the lower end of the fixing rings 5 is fixedly; the air guide sleeve 2 comprises a cover body 7 and an insertion rod 8, the upper end of the insertion rod 8 is fixedly connected to the upper end of the inner wall of the cover body 7, the adjusting main body 3 comprises a knob 11, elastic pieces 12 and a screw rod 16, the upper end of the screw rod 16 is fixedly connected to the lower end of the knob 11, the elastic pieces 12 are provided with a pair, the elastic pieces 12 are located on the inner side of the knob 11, and the upper ends of the elastic pieces 12 and the knob 11 are fixedly connected into a whole; the blades 4 comprise a blade body 18, a rotating rod 19 and a turbine 20, the side end of the blade body 18 and the side end of the rotating rod 19 are fixedly connected into a whole, and one end of the rotating rod 19, which is back to the blade body 18, and the side end of the turbine 20 are fixedly connected together; the fixing ring 5 comprises a ring body 21 and three first rotating holes 23, and the first rotating holes 23 are hollowed out of the outer end of the ring body 21; the fixed seat 6 comprises a fixed disc 24 and a connecting seat 26, the lower end of the fixed disc 24 is fixedly connected to the upper end of the connecting seat 26, the fixed disc 24 and the connecting seat 26 are of an integrated structure, the upper end of the fixed disc 24 is fixedly connected to the lower end of the ring body 21, the ring body 21 and the fixed disc 24 are of an integrated structure, the lower end of the screw rod 16 is rotatably installed at the inner end of the fixed disc 24, the rotating rod 19 penetrates through the first rotating hole 23, the rotating rod 19 is rotatably installed at the inner end of the first rotating hole 23, the turbine 20 is meshed with the screw rod 16 and assembled together, the lower end of the elastic sheet 12 is meshed with the inner wall of the upper part of the ring body 21, the inserted rod 8 is inserted and installed at the upper end of the knob 11, the lower end of; in the using process, when a user needs to adjust the angle of the blades 4, the air guide sleeve 2 is firstly pulled out upwards, the inserted rod 8 is separated upwards along the inner wall of the knob 11, then the air guide sleeve 2 is taken down, the elastic sheet 12 is pinched by hands, the lower part of the elastic sheet 12 is deformed inwards and is collected, so that the lower part of the elastic sheet 12 is separated from the ring body 21, the knob 11 and the ring body 21 are out of the buckling connection, then the knob 11 is screwed to drive the screw rod 16 to rotate, the worm wheel 20 is driven to rotate by the rotation of the screw rod 16, the rotating rod 19 is driven to rotate by the rotation of the worm wheel 20, the sheet body 18 is driven to rotate by the rotation of the rotating rod 19, the purpose of adjusting the angle of the sheet body 18 is achieved, the purpose of changing the blowing effect after the rotation of the fan blades is achieved by changing the inclination angle of the sheet body 18, make ring body 21 rotation can not make knob 11 and ring body 21 produce relative rotation when accelerating or slowing down to ensured the stability that blade 4 adjusted the result, cover kuppe 2 again in the outside of adjusting main part 3 at last, through kuppe 2 protection regulation main part 3, utilize kuppe 2 to reduce the resistance of device during operation to the air current simultaneously, improved the practical value of device.
The air guide sleeve 2 also comprises an expansion joint 9, and the expansion joint 9 is arranged at the lower end of the inserted rod 8; the lower end of the inserted rod 8 can generate inward elastic deformation through the expansion joint 9, so that the air guide sleeve 2 can be pulled out upwards.
The air guide sleeve 2 further comprises a pair of clamping blocks 10, the clamping blocks 10 are symmetrically and fixedly connected to the lower end of the inserted rod 8, and the clamping blocks 10 are movably clamped at the inner end of the upper part of the knob 11; the lower end of the insert rod 8 is buckled with the knob 11 through a clamping block 10.
The adjusting main body 3 further comprises a pair of finger holes 13, and the finger holes 13 are hollowed out of the outer end of the elastic sheet 12; the finger hole 13 is convenient for a user to clamp a finger outside the elastic sheet 12 when operating the elastic sheet 12, thereby facilitating the purpose of rotating the operation knob 11 when the user holds the elastic sheet 12 by hand.
The adjusting main body 3 further comprises a pair of clamping teeth 14, the clamping teeth 14 are provided, the upper ends of the clamping teeth 14 are fixedly connected to the lower ends of the elastic sheets 12, the elastic sheets 12 and the clamping teeth 14 are of an integral structure, and the outer ends of the clamping teeth 14 are meshed and mounted at the outer ends of the upper portion of the ring body 21; the lower end of the elastic sheet 12 is engaged with the ring body 21 through the latch 14.
The adjusting main body 3 further comprises a slot 15, the slot 15 is symmetrically arranged at the outer end of the knob 11, the slot 15 is hollowed out on the outer wall of the knob 11, and the elastic sheet 12 is located on the inner side of the slot 15; the slot 15 facilitates the user's handling of the spring plate 12.
The adjusting main body 3 further comprises a first clamping groove 17, and the first clamping groove 17 is rotatably clamped and installed at the inner end of the fixed disc 24; the lower end of the screw rod 16 is rotatably mounted with the fixed disc 24 through the first clamping groove 17.
The fixing ring 5 further comprises a second clamping groove 22, the second clamping groove 22 is formed in the upper end of the ring body 21, and the inner end of the second clamping groove 22 is meshed with the outer end of the clamping tooth 14; the latch 14 is engaged with the upper inner wall of the ring body 21 through a second engaging groove 22.
The fixed seat 6 further comprises a second rotating hole 25, the second rotating hole 25 is arranged at the upper end of the fixed disk 24 in a hollow mode, the lower end of the screw rod 16 is installed at the inner end of the second rotating hole 25 in an inserted mode, the outer wall of the lower wall of the screw rod 16 is supported on the upper wall of the fixed disk 24 in a sliding mode, and the first clamping groove 17 and the second rotating hole 25 are connected in a rotating and clamping mode; the lower end of the screw rod 16 is rotatably connected with the fixed disc 24 through a second rotating hole 25.
The fixing seat 6 further comprises a mounting seat 27, the mounting seat 27 and the connecting seat 26 are fixedly connected into a whole, the inner spaces of the connecting seat 26 and the mounting seat 27 are connected in a penetrating manner, the outer end of the mounting seat 27 is provided with a threaded hole, and the threaded hole penetrates through the mounting seat 27 and the connecting seat 26; the device is fixedly mounted with the rotor of the external motor by means of a connecting base 26.
The working principle is as follows: in the using process, when a user needs to adjust the angle of the blades 4, the air guide sleeve 2 is firstly pulled out upwards, the inserted rod 8 is separated upwards along the inner wall of the knob 11, then the air guide sleeve 2 is taken down, the elastic sheet 12 is pinched by hands, the lower part of the elastic sheet 12 is deformed inwards and is collected, so that the lower part of the elastic sheet 12 is separated from the ring body 21, the knob 11 and the ring body 21 are out of the buckling connection, then the knob 11 is screwed to drive the screw rod 16 to rotate, the worm wheel 20 is driven to rotate by the rotation of the screw rod 16, the rotating rod 19 is driven to rotate by the rotation of the worm wheel 20, the sheet body 18 is driven to rotate by the rotation of the rotating rod 19, the purpose of adjusting the angle of the sheet body 18 is achieved, the purpose of changing the blowing effect after the rotation of the fan blades is achieved by changing the inclination angle of the sheet body 18, the knob 11 and the ring body 21 cannot rotate relatively when the ring body 21 autorotates to accelerate or decelerate, so that the stability of the adjusting result of the blades 4 is guaranteed, the air guide sleeve 2 is covered on the outer side of the adjusting main body 3 again, the adjusting main body 3 is protected by the air guide sleeve 2, meanwhile, the resistance of the device to air flow during working is reduced by the air guide sleeve 2, and the practical value of the device is improved; the lower end of the inserted rod 8 can generate inward elastic deformation through the expansion joint 9, so that the air guide sleeve 2 can be pulled out upwards; the lower end of the inserted rod 8 is buckled and installed with a knob 11 through a fixture block 10; the finger holes 13 facilitate the user to clamp the fingers outside the elastic sheet 12 when operating the elastic sheet 12, thereby facilitating the purpose of rotating the knob 11 when the user holds the elastic sheet 12 by hand; the lower end of the elastic sheet 12 is meshed with the ring body 21 through the latch 14; the slot 15 facilitates the user to operate the elastic sheet 12; the lower end of the screw rod 16 is rotatably installed with the fixed disc 24 through the first clamping groove 17; the latch 14 is clamped with the inner wall of the upper part of the ring body 21 through a second clamping groove 22; the lower end of the screw rod 16 is rotatably connected with the fixed disc 24 through a second rotating hole 25; the device is fixedly mounted with the rotor of the external motor by means of a connecting base 26.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a flabellum structure of centrifugal axial fan which characterized in that: the novel fan blade comprises a fan blade main body (1), wherein the fan blade main body (1) comprises a flow guide cover (2), an adjusting main body (3), blades (4), a fixing ring (5) and a fixing seat (6), the upper end of the inner side of the flow guide cover (2) is fixedly clamped and installed at the upper end of the adjusting main body (3), the lower end of the adjusting main body (3) is rotatably inserted and installed at the upper end of the fixing seat (6), the number of the blades (4) is three, the blades (4) penetrate through the fixing ring (5), the blades (4) are rotatably installed with the fixing ring (5), and the lower end of the fixing ring (5) is fixedly connected to the upper end of the fixing; the air guide sleeve (2) comprises a cover body (7) and an insertion rod (8), the upper end of the insertion rod (8) is fixedly connected to the upper end of the inner wall of the cover body (7), the adjusting main body (3) comprises a knob (11), elastic sheets (12) and a lead screw (16), the upper end of the lead screw (16) is fixedly connected to the lower end of the knob (11), a pair of elastic sheets (12) is arranged, the elastic sheets (12) are located on the inner side of the knob (11), and the upper end of the elastic sheets (12) is fixedly connected with the knob (11) into a whole; the blades (4) comprise a blade body (18), a rotating rod (19) and a turbine (20), the side end of the blade body (18) is fixedly connected with the side end of the rotating rod (19) into a whole, and one end of the rotating rod (19), which is back to the blade body (18), is fixedly connected with the side end of the turbine (20); the fixing ring (5) comprises a ring body (21) and three first rotating holes (23), and the first rotating holes (23) are hollowed out of the outer end of the ring body (21); the fixing seat (6) comprises a fixing disc (24) and a connecting seat (26), the lower end of the fixing disc (24) is fixedly connected to the upper end of the connecting seat (26), the fixing disc (24) and the connecting seat (26) are of an integrated structure, the upper end of the fixing disc (24) is fixedly connected to the lower end of a ring body (21), the ring body (21) and the fixing disc (24) are of an integrated structure, the lower end of a lead screw (16) is rotatably installed at the inner end of the fixing disc (24), a rotating rod (19) penetrates through a first rotating hole (23), the rotating rod (19) is rotatably installed at the inner end of the first rotating hole (23), a turbine (20) is meshed with the lead screw (16) and assembled together, the lower end of a spring plate (12) is meshed with the inner wall of the upper portion of the ring body (21), a plug rod (8) is inserted in the upper end of the knob (11), and the lower end of a, the cover body (7) covers the outer side of the adjusting main body (3), and the lower end of the cover body (7) is in sliding contact with the upper wall of the ring body (21).
2. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the air guide sleeve (2) further comprises an expansion joint (9), and the expansion joint (9) is arranged at the lower end of the insertion rod (8).
3. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the air guide sleeve (2) further comprises a pair of clamping blocks (10), the clamping blocks (10) are symmetrically and fixedly connected to the lower end of the inserted rod (8), and the clamping blocks (10) are movably clamped at the inner end of the upper portion of the knob (11).
4. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the adjusting main body (3) further comprises finger holes (13), a pair of finger holes (13) are formed in the finger holes (13), and the finger holes (13) are hollowed out of the outer ends of the elastic pieces (12).
5. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the adjusting main body (3) further comprises a pair of clamping teeth (14), the upper ends of the clamping teeth (14) are fixedly connected to the lower end of the elastic sheet (12), the elastic sheet (12) and the clamping teeth (14) are of an integral structure, and the outer ends of the clamping teeth (14) are meshed and mounted at the outer ends of the upper portion of the ring body (21).
6. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the adjusting main body (3) further comprises a slot (15), the slot (15) is symmetrically arranged at the outer end of the knob (11), the slot (15) is hollowed out on the outer wall of the knob (11), and the elastic sheet (12) is located on the inner side of the slot (15).
7. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the adjusting main body (3) further comprises a first clamping groove (17), and the first clamping groove (17) is rotatably connected with the inner end of the fixed disc (24) in a clamping mode.
8. The fan blade structure of a centrifugal axial flow fan according to claim 5, wherein: the fixing ring (5) further comprises a second clamping groove (22), the second clamping groove (22) is formed in the upper end of the ring body (21), and the inner end of the second clamping groove (22) is meshed with the outer end of the clamping tooth (14).
9. The fan blade structure of a centrifugal axial flow fan according to claim 7, wherein: the fixing seat (6) further comprises a second rotating hole (25), the second rotating hole (25) is hollowed out in the upper end of the fixing disc (24), the lower end of the screw rod (16) is inserted and installed at the inner end of the second rotating hole (25), the outer wall of the lower wall of the screw rod (16) is slidably supported on the upper wall of the fixing disc (24), and the first clamping groove (17) and the second rotating hole (25) are connected in a rotating and clamping mode.
10. The fan blade structure of a centrifugal axial flow fan according to claim 1, wherein: the fixing seat (6) further comprises a mounting seat (27), the mounting seat (27) is fixedly connected with the connecting seat (26) into a whole, the inner space of the connecting seat (26) is communicated with the inner space of the mounting seat (27), the outer end of the mounting seat (27) is provided with a threaded hole, and the threaded hole penetrates through the mounting seat (27) and the connecting seat (26).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011537366.4A CN112648231B (en) | 2020-12-23 | 2020-12-23 | Fan blade structure of centrifugal axial flow fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011537366.4A CN112648231B (en) | 2020-12-23 | 2020-12-23 | Fan blade structure of centrifugal axial flow fan |
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| CN112648231A true CN112648231A (en) | 2021-04-13 |
| CN112648231B CN112648231B (en) | 2022-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857090A (en) * | 2022-04-29 | 2022-08-05 | 满洲里达赉湖热电有限公司 | Air supply blower air volume adjusting and guiding device |
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| CN201318323Y (en) * | 2008-11-11 | 2009-09-30 | 漳州灿坤实业有限公司 | Fan capable of regulating blade angle |
| US20170350402A1 (en) * | 2014-12-17 | 2017-12-07 | Ziehl-Abegg Se | Axial Ventilator |
| CN209621717U (en) * | 2019-01-17 | 2019-11-12 | 佛山市粤宇风机设备有限公司 | A kind of draught fan impeller of adjustable angle |
| CN210919560U (en) * | 2019-07-17 | 2020-07-03 | 丹华海洋工程装备(南通)有限公司 | Axial flow fan with adjustable impeller |
| CN111456968A (en) * | 2020-03-24 | 2020-07-28 | 上海应达风机股份有限公司 | Axial-flow fan with adjustable blades |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857090A (en) * | 2022-04-29 | 2022-08-05 | 满洲里达赉湖热电有限公司 | Air supply blower air volume adjusting and guiding device |
| CN114857090B (en) * | 2022-04-29 | 2023-11-03 | 满洲里达赉湖热电有限公司 | Air quantity adjusting and guiding device of blower |
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| Publication number | Publication date |
|---|---|
| CN112648231B (en) | 2022-07-05 |
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Denomination of invention: A Fan Blade Structure for a Centrifugal Axial Flow Fan Effective date of registration: 20230915 Granted publication date: 20220705 Pledgee: Bank of Ningbo Co.,Ltd. Shaoxing Branch Pledgor: Zhejiang Longxin fan Co.,Ltd. Registration number: Y2023980057000 |
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