CN116717483A

CN116717483A - Axial flow fan

Info

Publication number: CN116717483A
Application number: CN202310627090.6A
Authority: CN
Inventors: 戴尔琼
Original assignee: Shanghai Senyi New Energy Co ltd
Current assignee: Guangdong Langdi Gelinte Electrical Appliance Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-09-08
Anticipated expiration: 2043-05-30

Abstract

The invention relates to the technical field of fans, in particular to an axial flow fan, which comprises: the mounting bracket is formed into a whole by two V-shaped supports, and the two V-shaped supports are used for fixing the axial flow fan in the radial direction; and the enclasping mechanism is clamped at the vertex part of the V-shaped support and is fixedly connected with the axial flow fan. Through rotating adjusting device, and then can make the activity gather together the outer end of mechanism and present the state of gathering together or abduction, gather together the time, can make movable blade present the form of gathering together, can reduce the route that the air current flows through like this, and then improved the range, and make the impact force of air current improve, and then improved efficiency and the speed that the leaf was clear up, when clearing up on a large scale leaf, reverse rotation adjusting device, the state that leads to the outer expansion of adjustment mechanism can make the air current disperse at the outer end of direction adjustment mechanism like this, the scope of the flow of air current improves like this.

Description

Axial flow fan

Technical Field

The invention relates to the technical field of fans, in particular to an axial flow fan.

Background

The axial flow fan has very wide application, namely, the air flow in the same direction with the axis of the fan blade, such as an electric fan, and the fan of the air conditioner external unit is an axial flow running fan. This is called "axial flow" because the gas flows parallel to the fan axis. Axial fans are commonly used in applications where flow requirements are high and pressure requirements are low. The axial flow fan fixes the position and moves the air. The axial flow fan mainly comprises a fan impeller and a shell.

When the existing axial flow fan is used, the situation that the requirements for wind speed are different exists in the use scene, the wind quantity is controlled by the variable speed motor in the traditional way, when the existing axial flow fan can be practically used, for example, when cleaning leaves, the high-speed air flow is required to be provided at fixed points in the process of cleaning the dead leaves on the tree, the wind speed of the existing axial flow fan can be changed, but due to the arrangement of the shell of the existing axial flow fan, the air flow is increased or discharged from the fixed caliber, so that the situation of scattering is serious, only a large-scale blowing can be realized, in addition, the angle is required to be adjusted in the process of cleaning the leaves on the tree by the existing axial flow fan, the installation of the existing axial flow fan is inconvenient, and the stability is poor.

Disclosure of Invention

In order to solve the technical problems, the invention provides an axial flow fan.

The technical scheme of the invention is realized as follows:

an axial flow fan comprising:

the mounting bracket is formed into a whole by two V-shaped supports, and the two V-shaped supports are used for fixing the axial flow fan in the radial direction;

the enclasping mechanism is clamped at the vertex position of the V-shaped support and is fixedly connected with the axial flow fan;

the lateral supporting mechanism is detachably connected to the side face of the enclasping mechanism, and the bottom end of the lateral supporting mechanism is fixed on the mounting bracket and used for supporting the whole axial flow fan;

the fan body is in a cylindrical shape, a connecting part is arranged on the surface of the fan body at the position of the enclasping mechanism, and the connecting part is in threaded connection with a threaded cavity of the enclasping mechanism;

the speed regulating part is arranged on one side of the fan body and is used for regulating the flow speed and the range of the fan body, the speed regulating part comprises a movable gathering mechanism, a guide regulating mechanism and a regulating device, the movable gathering mechanism and the guide regulating mechanism are fixedly connected on one side of the regulating device, the movable gathering mechanism can swing radially on one side of the regulating device, and one side of the movable gathering mechanism is lapped on the outer side of the guide regulating mechanism.

Further, adjusting device includes the installation hoop, set up annular mounting groove on the installation hoop, the tip fixed connection of annular mounting groove and fan body, the cover is equipped with the swivel becket on the installation hoop, inner wall fixedly connected with arc rack on the swivel becket, the arc rack runs through the arc passageway that the installation hoop was seted up, the installation hoop is provided with annular cavity, annular cavity internal rotation is connected with the ball cover, the cover is equipped with the rotation gear with arc rack meshing on the ball cover, be provided with accommodate the lead screw in the ball cover, accommodate the lead screw's outer end fixedly connected with ball hinge pole, the outer end of ball hinge pole is provided with articulated seat, articulated seat fixed connection is in the inner wall of mechanism is gathered together in the activity.

Further, the movable gathering mechanism comprises a plurality of arc-shaped guide plates which are annularly arranged, gaps are reserved among the arc-shaped guide plates, an elastic plate is fixedly connected to the outer side of the rotating ring, connecting strips are arranged on the outer surface of the elastic plate, and the connecting strips are located in the gaps.

Further, the guiding and adjusting mechanism comprises a plurality of movable blades which are annularly arranged, and two adjacent movable blades are connected through a connecting film; the movable blade comprises a fixed plate seat fixedly connected to the outer side of the rotating ring, a sloping plate I which inclines towards the radial direction is arranged on the outer side of the fixed plate seat, an arc-shaped connecting plate which expands outwards is arranged on one side of the sloping plate I, an aggregation strip is fixedly connected to one side of the arc-shaped connecting plate, and a limit strip for blocking the arc-shaped guide plate is arranged on the outer side of the arc-shaped connecting plate.

Further, the enclasping mechanism comprises a fixing part, the fixing part is in threaded connection with the connecting part, a clamping part is fixedly connected to the outer side of the fixing part, and a tubular arc-shaped wrapping groove is formed in the top of the clamping part and the top of the fixing part.

Further, the lateral supporting mechanism comprises a supporting portion, a binding portion, an adjusting portion and a linkage portion, one end of the supporting portion is in threaded connection with a threaded hole formed in the fixing portion, the binding portion is used for clamping the V-shaped support, the adjusting portion is connected with the binding portion, the linkage portion enables the adjusting portion to be clamped with the binding portion, and the adjusting portion is rotatably arranged on the supporting portion.

Further, the binding part comprises a U-shaped hoop, L-shaped tightening plates are arranged on two sides of the U-shaped hoop, clamping openings are formed in the L-shaped tightening plates, outer thread sleeves are arranged at positions of the clamping openings, the U-shaped hoop is close to the L-shaped tightening plates, arc limiting blocks are arranged at positions of the L-shaped tightening plates, protruding strips are arranged on one sides of the arc limiting blocks, the protruding strips are abutted against the inner walls of the L-shaped tightening plates, and guide rods arranged on the arc limiting blocks penetrate through guide grooves formed in the U-shaped hoop.

Further, the regulation part comprises a connecting block, one side fixedly connected with two-way swivel nut of connecting block, fixedly connected with flitch on the two-way swivel nut, the outside threaded connection of flitch is in the outside swivel nut, the outer end rotation of two-way swivel nut is connected with the chucking axle sleeve, two-way swivel nut internal thread connection has the lead screw chucking axle sleeve runs through and sets up in the chucking mouth, the outside of lead screw is connected with the embedded block through the articulated elements, the embedded block passes through elastic block fixedly connected with semicircle board, the chucking axle sleeve with semicircle board contact surface is provided with the step arch.

Further, the supporting part is T-shaped, the supporting part comprises a transverse sleeve and a vertical sleeve, the transverse sleeve is communicated with the vertical sleeve, an adjusting part is arranged in the transverse sleeve, a linkage part is arranged in the vertical sleeve, a rotary sleeve is rotationally arranged at the top end of the vertical sleeve, a threaded bolt is fixedly connected in the rotary sleeve, the threaded bolt is in threaded connection with the fixing part, the linkage part comprises a rotary shaft, one end of the rotary shaft is fixedly connected with one side of the threaded bolt, a first bevel gear is fixedly connected with the bottom end of the threaded bolt, two connecting blocks are fixedly connected through a connecting shaft rod, a second bevel gear is sleeved on the connecting shaft rod, and the first bevel gear is meshed with the second bevel gear.

Further, the inside driving motor that is provided with of fan body, driving motor's output is provided with the cavity disc, the outside equidistance of cavity disc is run through and is provided with the stop collar, run through in the stop collar and be provided with the regulation pole, the both ends of adjusting the pole are provided with flabellum and third bevel gear respectively, cavity disc internal thread connection has the regulating disk, the regulating disk inboard be provided with third bevel gear engagement's adjusting rack, the outside fixedly connected with hexagonal nut of regulating disk.

The invention has the following beneficial effects:

1. through mutually supporting and using enclasping mechanism and side direction supporting mechanism, enclasping mechanism can keep the state of chucking on the V-arrangement supports to side direction supporting mechanism can provide ascending holding power, can form the connection characteristics of triangle state like this, and then can improve the fastness after the installation.

2. The setting of side direction supporting mechanism, when rotating adjustment part, the linkage part can be with the state of binding the part and forming the chucking on the V-arrangement supports to have the state of shrink, can make the arc stopper form extruded state to the surface that the V-arrangement supported, so, can improve the efficiency of installation, form the state that the triangle supported the top, improved the effect of chucking moreover, convenient operation more.

3. Through the hexagonal nut to the rotation outside for the regulating disk adjusts the rack and moves to the inboard, and then adjusts the rack and can make third bevel gear rotate certain angle, and then third bevel gear can make the angle change of adjusting the pole, the flabellum angle can finely tune as required like this, and then can increase when rotating with the air current contact surface, the arc surface through last is with the quick outer row of air current, and then can play the effect of the outer exhaust volume of control.

4. The setting of speed governing part, through rotating adjusting device, and then can make the activity gather together the outer end of mechanism and present the state of gathering together or abduction, when gathering together, can make movable vane present the form of gathering together, can reduce the route that the air current flows through like this, and then improved the range, and make the impact force of air current improve, and then improved the efficiency and the speed that the leaf was clear away, when clearing up on a large scale the leaf, reverse rotation adjusting device, guide adjustment mechanism's the state of expanding outward is presented, can make the air current disperse at guide adjustment mechanism's outer end like this, improve the scope of flow of air current like this.

Drawings

FIG. 1 is a perspective view of an axial flow fan according to the present invention;

FIG. 2 is a side view of an axial flow fan according to the present invention;

FIG. 3 is a right side view of an axial flow fan according to the present invention;

FIG. 4 is a schematic view of a fan body in an axial flow fan according to the present invention;

FIG. 5 is a partial cross-sectional view of a lateral support mechanism in an axial flow fan according to the present invention;

FIG. 6 is a cross-sectional side view of a side support mechanism in an axial flow fan according to the present invention;

FIG. 7 is a schematic view of a conditioning section of an axial flow fan according to the present invention;

FIG. 8 is a schematic view of a cinching portion in an axial flow fan according to the present invention;

FIG. 9 is a schematic view of an L-shaped take-up plate in the cinching portion of an axial fan in accordance with the present invention;

FIG. 10 is a schematic view of a hugging mechanism in an axial flow fan according to the present invention;

FIG. 11 is a side view of a speed governor portion of an axial flow fan according to the present invention;

FIG. 12 is a schematic diagram showing the separation of the speed regulating portion of an axial flow fan according to the present invention;

FIG. 13 is a side cross-sectional view of an adjusting device in an axial flow fan according to the present invention;

FIG. 14 is a schematic diagram of a side view of a speed regulating portion of an axial flow fan according to the present invention;

fig. 15 is a schematic view of an axial flow fan of the present invention at an insert.

Detailed Description

The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 15, an axial flow fan includes:

the mounting bracket 1, the mounting bracket 1 is formed into a whole by two V-shaped supports, and the two V-shaped supports are used for fixing the axial flow fan from the radial direction;

the enclasping mechanism 2, enclasping mechanism 2 chucking is at the summit position that the V-arrangement supported, and enclasping mechanism 2 and this axial fan fixed connection, enclasping mechanism 2 include fixed part 2.2, fixed part 2.2 and connecting portion 5 threaded connection, and the outside fixedly connected with chucking part 2.1 of fixed part 2.2, chucking part 2.1 is provided with tubular arc parcel groove 3 with the top of fixed part 2.2.

When the enclasping mechanism 2 is installed, the inner wall of the tubular arc-shaped wrapping groove 3 on the fixing part 2.2 and the clamping part 2.1 is stuck to the V-shaped support, after the fixing part 2.2 and the clamping part 2.1 are clamped, the top end of the V-shaped support can be wrapped, so that the wrapping property and the laminating property can be improved, the shaking condition can not occur after the installation, the top end of the V-shaped support is arranged into an arc-shaped bent pipe, and the overall firmness is further improved under the support of the lateral support mechanism 4.

The lateral support mechanism 4, the lateral support mechanism 4 can be dismantled and connect in the side of enclasping mechanism 2, and the bottom of lateral support mechanism 4 is fixed on installing support 1 for support whole axial fan, lateral support mechanism 4 includes supporting part 4.15, tie up the portion, adjusting part and linkage part, the one end threaded connection of supporting part 4.15 is in the screw hole that fixed part 2.2 set up, tie up the portion and be used for supporting the chucking with the V-arrangement, adjusting part is connected with tie up the portion, the linkage part makes adjusting part and tie up the portion chucking, adjusting part rotates and sets up on supporting part 4.15.

The binding part comprises a U-shaped hoop 4.1, both sides of the U-shaped hoop 4.1 are respectively provided with an L-shaped tightening plate 4.3, the L-shaped tightening plates 4.3 are respectively provided with a clamping opening, the positions of the clamping openings are provided with outer side thread sleeves 4.4, the positions of the U-shaped hoop 4.1, which are close to the L-shaped tightening plates 4.3, are provided with arc limiting blocks 4.2, one side of each arc limiting block 4.2 is provided with a protruding strip 4.21, the protruding strips 4.21 are abutted against the inner walls of the L-shaped tightening plates 4.3, and guide rods 4.7 arranged on the arc limiting blocks 4.2 penetrate through guide grooves 4.6 formed in the U-shaped hoop 4.1.

When the binding part is installed, the L-shaped tightening plate 4.3 of the U-shaped hoop 4.1 is opened outwards to form an opening, the L-shaped tightening plate 4.3 and the U-shaped hoop 4.1 are sleeved on the V-shaped support, the rubber cushion layer on the inner wall of the U-shaped hoop 4.1 is completely attached to the V-shaped support surface, the arc-shaped limiting block 4.2 is contacted with the V-shaped support surface, and then the guide rods 4.7 of the arc-shaped limiting block 4.2 are inserted into the guide grooves 4.6 on the two sides;

through using U-shaped staple bolt 4.1 and arc stopper 4.2 cooperation, be convenient for support the chucking with the V-arrangement during the installation, and at the in-process of locking, owing to two legs of V-arrangement support struts the setting, the gradient of adaptation V-arrangement support more effectively like this, keep closely the laminating state after making the installation, and then improved the effect of holding tightly, the fastness has been improved, the in-process of locking, L shape tightening plate 4.3 of both sides draws close, L shape tightening plate 4.3 is when extrudeing arc stopper 4.2 like this, arc stopper 4.2 is to the in-process that V-arrangement supporting surface is close to, guide bar 4.7 slides in guide way 4.6, can the V-arrangement support further chucking with the slope of arc stopper 4.2 slope upwards like this, when U-shaped staple bolt 4.1 receives decurrent gravity like this, the supporting effect is better.

The adjusting part comprises a connecting block 4.10, one side of the connecting block 4.10 is fixedly connected with a two-way threaded sleeve 4.11, a threaded plate 4.9 is fixedly connected to the two-way threaded sleeve 4.11, the outer side of the threaded plate 4.9 is in threaded connection with the outer side of the threaded sleeve 4.4, the outer end of the two-way threaded sleeve 4.11 is rotationally connected with a clamping shaft sleeve, the inner thread of the two-way threaded sleeve 4.11 is connected with a screw rod 4.16, the clamping shaft sleeve is arranged in a clamping opening in a penetrating mode, the outer side of the screw rod 4.16 is connected with an embedded block 4.13 through a hinge piece 4.18, the embedded block 4.13 is fixedly connected with a semicircular plate 4.17 through an elastic block 4.14, and a step protrusion 4.12 is arranged on the contact surface of the clamping shaft sleeve and the semicircular plate 4.17.

When the linkage part rotates, the connecting block 4.10 drives the thread plate 4.9 on the bidirectional thread sleeve 4.11 to rotate, so that the thread plate 4.9 moves towards the outside thread sleeve 4.4, and the outside thread sleeve 4.4 moves towards the thread plate 4.9, so that the L-shaped tightening plates 4.3 at two sides move towards opposite directions, the L-shaped tightening plates 4.3 can gradually take a tightened state, and the L-shaped tightening plates 4.3 can press the protrusion strips 4.21 inwards under the condition that the L-shaped tightening plates 4.3 are kept in a pressed state on the U-shaped anchor ear 4.1, so that the protrusion strips 4.21 can be matched with the U-shaped anchor ear 4.1 to clamp the V-shaped support, and thus the fixation can be realized rapidly;

in the above operation, since the ball groove is formed in the inner wall of the two-way screw sleeve 4.11 when the two-way screw sleeve 4.11 rotates, the screw rod 4.16 moves axially in the ball groove, the screw rod 4.16 drives the semicircular plate 4.17 to move axially through the hinge 4.18 in a state that the threaded plate 4.9 contacts with the inner side of the L-shaped tightening plate 4.3, and when the semicircular plate 4.17 moves onto the step protrusion 4.12, the semicircular plates 4.17 move upwards, so that the semicircular plates 4,17 can contact with the outer side of the L-shaped tightening plate 4.3, and the semicircular plates 4.17 and the threaded plate 4.9 can enable the two side L-shaped tightening plates 4.3 to approach each other under the clamping effect of the L-shaped tightening plate 4.3 under the action of the rotation force, thereby achieving the fixing effect.

The supporting part 4.15 is in a T-shaped structure, the supporting part 4.15 comprises a transverse sleeve 4.5 and a vertical sleeve 4.51, the transverse sleeve 4.5 is communicated with the vertical sleeve 4.51, an adjusting part is arranged in the transverse sleeve 4.5, a linkage part is arranged in the vertical sleeve 4.51, a rotary sleeve 4.52 is rotatably arranged at the top end of the vertical sleeve 4.51, a threaded bolt 4.53 is fixedly connected in the rotary sleeve 4.52, and the threaded bolt 4.53 is in threaded connection with the fixed part 2.2;

the linkage part comprises a rotating shaft 4.54, one end of the rotating shaft 4.54 is fixedly connected with one side of a threaded bolt 4.53, the bottom end of the threaded bolt 4.53 is fixedly connected with a first bevel gear 4.55, two connecting blocks 4.10 are fixedly connected through a connecting shaft lever 4.8, a second bevel gear 4.81 is sleeved on the connecting shaft lever 4.8, and the first bevel gear 4.55 is meshed with the second bevel gear 4.81.

When the lateral supporting mechanism 4 is installed, firstly, the distance between the L-shaped tightening plates 4.3 is increased, after the linkage pipe of the adjusting part is inserted into the clamping openings of the two L-shaped tightening plates 4.3, after the rotating sleeve 4.52 is rotated, the threaded bolt 4.53 on the rotating sleeve 4.52 is fixed on the fixed part 2.2, meanwhile, the threaded bolt 4.53 drives the rotating shaft 4.54 to rotate, and then the first bevel gear 4.55 on the rotating shaft 4.54 drives the second bevel gear 4.81 to rotate, so that the connecting shaft lever 4.8 can synchronously rotate, and further the function of clamping the V-shaped support can be completed.

The fan body 6, the fan body 6 is the tube-shape setting, the fan body 6 surface is located the position of enclasping mechanism 2 and is provided with connecting portion 5, connecting portion 5 threaded connection is in the screw cavity of enclasping mechanism 2, connecting portion 5 still includes cover dish and built-in rotating block, can adjust the angle of fan body 6 when using, can make the impact force that the air current produced strike on trees optional position, fan body 6 inside is provided with driving motor 6.1, driving motor 6.1's output is provided with hollow disc 6.2, the outside equidistance of hollow disc 6.2 is run through and is provided with stop collar 6.3, run through in the stop collar 6.3 and be provided with regulation pole 6.4, the both ends of regulation pole 6.4 are provided with flabellum 6.8 and third bevel gear 6.5 respectively, threaded connection has regulating disk 6.6 in the regulating disk 6.6 inboard is provided with the rack with third bevel gear 6.5 meshing, the outside fixedly connected with hexagonal nut 6.7 of regulating disk 6.6.

According to the requirement of wind power and wind flow when the axial flow fan is used, through rotating the hexagonal nut 6.7 of outside, the adjusting disk 6.6 adjusts the rack to move to the inboard, and then adjusts the rack and can make the third bevel gear 6.5 rotate certain angle, and then the third bevel gear 6.5 can make the angle of adjusting the pole 6.4 change, the flabellum 6.8 angle can finely tune as required like this, and then can increase when rotating with the air current contact surface, arrange the air current outside fast through the arcwall face on 6.8, and then can play the effect of controlling outer exhaust volume.

The speed regulating part is arranged on one side of the fan body 6 and used for regulating the flow speed and the range of the fan body 6, the speed regulating part comprises a movable gathering mechanism 8, a guide regulating mechanism 7 and a regulating device 9, the movable gathering mechanism 8 and the guide regulating mechanism 7 are fixedly connected on one side of the regulating device 9, the movable gathering mechanism 8 can swing radially on one side of the regulating device 9, and one side of the movable gathering mechanism 8 is lapped on the outer side of the guide regulating mechanism 7.

The adjusting device 9 comprises an installing hoop 9.3, an annular installing groove 9.2 is formed in the installing hoop 9.3, the annular installing groove 9.2 is fixedly connected with the end portion of the fan body 6, a rotating ring 9.1 is sleeved on the installing hoop 9.3, an arc-shaped rack 9.5 is fixedly connected to the upper inner wall of the rotating ring 9.1, the arc-shaped rack 9.5 penetrates through an arc-shaped channel 9.4 formed in the installing hoop 9.3, an annular cavity is formed in the installing hoop 9.3, a ball sleeve 9.6 is rotatably connected to the annular cavity, a rotating gear 9.7 is sleeved on the ball sleeve 9.6 and meshed with the arc-shaped rack 9.5, an adjusting screw 9.8 is arranged in the ball sleeve 9.6, the outer end of the adjusting screw 9.8 is fixedly connected with a spherical hinge rod 9.10, a hinge seat 9.9 is arranged at the outer end of the spherical hinge rod 9.10, and the hinge seat 9.9 is fixedly connected to the inner wall of the movable gathering mechanism 8.

When the wind speed and the range are improved, the rotating ring 9.1 is rotated, the rotating ring 9.1 is connected to the mounting hoop 9.3 in a threaded manner, the arc-shaped rack 9.5 on the inner wall of the rotating ring 9.1 moves in the arc-shaped channel 9.4, so that the arc-shaped rack 9.5 can enable the rotating gear 9.7 to be adjusted, the ball sleeve 9.6 in the rotating gear 9.7 can rotate, the adjusting screw rod 9.8 in the ball sleeve 9.6 can move to one side, the adjusting screw rod 9.8 drives the arc-shaped connecting plates 8.1 to move radially, and the outer ends of the arc-shaped connecting plates 8.1 are close to the axial center;

when the wind speed and the range are reduced, the rotating ring 9.1 is reversely rotated, the adjusting screw rod 9.8 in the ball sleeve 9.6 can move to the other side, the arc-shaped connecting plate 8.1 can be outwards expanded, the guiding adjusting mechanism 7 can be in an outwards expanded state, and external air flow is in a diffused state, so that the air flow range is shortened, and the wind speed is reduced.

The movable gathering mechanism 8 comprises a plurality of arc-shaped connecting plates 8.1 which are annularly arranged, gaps are reserved among the arc-shaped connecting plates 8.1, the outer side of the rotating ring 9.1 is fixedly connected with an elastic plate 8.3, the outer surface of the elastic plate 8.3 is provided with connecting strips 8.2, and the connecting strips 8.2 are positioned in the gaps;

the guiding and adjusting mechanism 7 comprises a plurality of movable blades 7.1 which are annularly arranged, and two adjacent movable blades 7.1 are connected through a connecting film 7.7; the movable blade 7.1 comprises a fixed plate seat 7.5 fixedly connected to the outer side of the rotary ring 9.1, a sloping plate I7.6 inclining towards the radial direction is arranged on the outer side of the fixed plate seat 7.5, an outwards-expanding arc-shaped connecting plate 7.4 is arranged on one side of the sloping plate I7.6, a gathering strip 7.3 is fixedly connected to one side of the arc-shaped connecting plate 7.4, and a limiting strip 7.2 for blocking the arc-shaped connecting plate 8.1 is arranged on the outer side of the arc-shaped connecting plate 7.4.

The movable gathering mechanism 8 is arranged, when the movable gathering mechanism 8 is inwardly gathered, the outer ends of the connecting strips 8.2 are in contact with the surface of the arc-shaped connecting plate 7.4, and when the movable gathering mechanism is gathered, the movable blades 7.1 can be extruded towards the axle center when sliding on the inclined surface of the arc-shaped connecting plate 7.4, so that the air flow channels at the outer ends of the movable blades 7.1 are reduced to be in a tightening state, the air flow is collected in the guide adjusting mechanism 7 and is concentrated from the channels of the tightening opening, the flow speed can be improved, the range can be improved, and the air flow can be adjusted in wind speed and range when passing through the guide adjusting mechanism 7.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims

1. An axial flow fan, comprising:

the speed regulating part is arranged on one side of the fan body and is used for regulating the flow speed and the range of the fan body, the speed regulating part comprises a movable gathering mechanism, a guide regulating mechanism and a regulating device, the gathering mechanism and the guide regulating mechanism are fixedly connected on one side of the regulating device, the movable gathering mechanism can swing radially on one side of the regulating device, and one side of the movable gathering mechanism is lapped on the outer side of the guide regulating mechanism.

2. The axial flow fan according to claim 1, wherein the adjusting device comprises a mounting hoop, an annular mounting groove is formed in the mounting hoop, the annular mounting groove is fixedly connected with the end portion of the fan body, a rotating ring is sleeved on the mounting hoop, an arc-shaped rack is fixedly connected to the upper inner wall of the rotating ring, the arc-shaped rack penetrates through an arc-shaped channel formed in the mounting hoop, an annular cavity is formed in the mounting hoop, a ball sleeve is rotationally connected to the annular cavity, a rotating gear is sleeved on the ball sleeve and meshed with the arc-shaped rack, an adjusting screw is arranged in the ball sleeve, a spherical hinge rod is fixedly connected to the outer end of the adjusting screw, and a hinge seat is arranged at the outer end of the spherical hinge rod and fixedly connected to the inner wall of the movable gathering mechanism.

3. The axial flow fan according to claim 1, wherein the movable gathering mechanism comprises a plurality of arc-shaped guide plates which are annularly arranged, gaps are reserved among the arc-shaped guide plates, an elastic plate is fixedly connected to the outer side of the rotating ring, and connecting strips are arranged on the outer surface of the elastic plate and located in the gaps.

4. The axial flow fan according to claim 1, wherein the guide adjusting mechanism comprises a plurality of movable blades which are annularly arranged, and two adjacent movable blades are connected through a connecting film; the movable blade comprises a fixed plate seat fixedly connected to the outer side of the rotating ring, a sloping plate I which inclines towards the radial direction is arranged on the outer side of the fixed plate seat, an arc-shaped connecting plate which expands outwards is arranged on one side of the sloping plate I, an aggregation strip is fixedly connected to one side of the arc-shaped connecting plate, and a limit strip for blocking the arc-shaped guide plate is arranged on the outer side of the arc-shaped connecting plate.

5. The axial flow fan according to claim 1, wherein the holding mechanism comprises a fixing portion, the fixing portion is in threaded connection with the connecting portion, a clamping portion is fixedly connected to the outer side of the fixing portion, and a tubular arc-shaped wrapping groove is formed in the top of the clamping portion and the top of the fixing portion.

6. The axial flow fan according to claim 1, wherein the lateral support mechanism includes a support portion, a binding portion, an adjusting portion, and a linking portion, one end of the support portion is screwed into a screw hole provided in the fixing portion, the binding portion is used for clamping the V-shaped support, the adjusting portion is connected to the binding portion, the linking portion clamps the adjusting portion to the binding portion, and the adjusting portion is rotatably provided on the support portion.

7. The axial flow fan according to claim 6, wherein the binding part comprises a U-shaped hoop, both sides of the U-shaped hoop are provided with L-shaped tightening plates, clamping openings are formed in the L-shaped tightening plates, outer thread sleeves are arranged at positions of the clamping openings, arc-shaped limiting blocks are arranged at positions, close to the L-shaped tightening plates, of the U-shaped hoop, protruding strips are arranged on one side of each arc-shaped limiting block and abut against the inner walls of the L-shaped tightening plates, and guide rods arranged on the arc-shaped limiting blocks penetrate through guide grooves formed in the U-shaped hoops.

8. The axial flow fan according to claim 6, wherein the adjusting part comprises a connecting block, one side of the connecting block is fixedly connected with a bidirectional screw sleeve, a threaded plate is fixedly connected to the bidirectional screw sleeve, an outer side thread of the threaded plate is in threaded connection with the outer side thread sleeve, the outer end of the bidirectional screw sleeve is rotationally connected with a clamping shaft sleeve, a screw rod is in threaded connection with the inner side of the bidirectional screw sleeve, the clamping shaft sleeve penetrates through the clamping hole, an embedded block is connected to the outer side of the screw rod through a hinge piece, a semicircular plate is fixedly connected to the embedded block through an elastic block, and a step protrusion is arranged on the contact surface of the clamping shaft sleeve and the semicircular plate.

9. The axial flow fan according to claim 6, wherein the supporting portion is T-shaped, the supporting portion includes a horizontal sleeve and a vertical sleeve, the horizontal sleeve is communicated with the vertical sleeve, an adjusting portion is arranged in the horizontal sleeve, a linkage portion is arranged in the vertical sleeve, a rotary sleeve is rotatably arranged at the top end of the vertical sleeve, a threaded bolt is fixedly connected in the rotary sleeve, the threaded bolt is in threaded connection with the fixing portion, the linkage portion includes a rotary shaft, one end of the rotary shaft is fixedly connected with one side of the threaded bolt, a first bevel gear is fixedly connected with the bottom end of the threaded bolt, two connecting blocks are fixedly connected through a connecting shaft rod, a second bevel gear is sleeved on the connecting shaft rod, and the first bevel gear is meshed with the second bevel gear.

10. The axial flow fan according to claim 1, wherein a driving motor is arranged inside the fan body, a hollow disc is arranged at the output end of the driving motor, a limit sleeve is arranged on the outer side of the hollow disc in an equidistance penetrating manner, an adjusting rod is arranged in the limit sleeve in a penetrating manner, fan blades and a third bevel gear are respectively arranged at two ends of the adjusting rod, an adjusting disc is connected with the inner thread of the hollow disc in a threaded manner, an adjusting rack meshed with the third bevel gear is arranged on the inner side of the adjusting disc, and a hexagonal nut is fixedly connected on the outer side of the adjusting disc.