CN113623253A - Telescopic portable fan - Google Patents

Telescopic portable fan Download PDF

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Publication number
CN113623253A
CN113623253A CN202111080669.2A CN202111080669A CN113623253A CN 113623253 A CN113623253 A CN 113623253A CN 202111080669 A CN202111080669 A CN 202111080669A CN 113623253 A CN113623253 A CN 113623253A
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CN
China
Prior art keywords
telescopic
fan
flabellum
subassembly
fan blade
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Granted
Application number
CN202111080669.2A
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Chinese (zh)
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CN113623253B (en
Inventor
毛苍斌
周刚毅
刘军
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Ningbo University
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Ningbo University
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Priority to CN202111080669.2A priority Critical patent/CN113623253B/en
Publication of CN113623253A publication Critical patent/CN113623253A/en
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Publication of CN113623253B publication Critical patent/CN113623253B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/084Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/002Details, component parts, or accessories especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38Blades
    • F04D29/388Blades characterised by construction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/522Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a telescopic portable fan which is characterized by comprising a handheld rod, a telescopic fan blade component, a fan blade driving mechanism and a telescopic face mask component, wherein the fan blade driving mechanism is fixed with or hinged with the handheld rod; the fan has the advantages that the fan blade component and the mask component in the fan can be stretched, so that the fan blade component and the mask component are in an extended state when the fan is used, and the wind power of the fan when the fan is used is ensured; when the fan is not used, the fan blade assembly and the mask assembly are in a contraction state, the size of the fan is reduced, the fan is convenient to carry, and the problem of contradiction between portability and wind power of the fan which always exists at present is solved.

Description

Telescopic portable fan
Technical Field
The invention relates to a small household electric fan used in daily life, in particular to a telescopic portable fan.
Background
In summer, the electric fan is an indispensable part, and the electric fans in the market at present comprise a floor fan, a table fan, an air-conditioning fan, a handheld electric fan and the like. Among them, the handheld electric fan is a small electric fan suitable for personal use, which has been popular in recent years, and is more suitable for outdoor carrying than the conventional electric fan. However, the volume of the fan is small, so that the blades of the fan are small, the generated wind power is limited, and if the wind power of the fan is increased, the area of the blades must be increased, and the volume of the fan is increased, so that the fan is inconvenient to carry.
Although many of the existing handheld electric fans can be folded, the folding of the handle is almost limited, and the fan blades and the face mask cannot be folded or contracted, so that the contradiction between the portability of the electric fan and the wind power exists and cannot be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a telescopic portable fan, which can solve the contradiction between the portability and the wind power of the conventional electric fan by contracting fan blades and a fan cover, so that the carrying volume of the fan can be reduced on the premise of ensuring the wind power of the electric fan, and the portable fan is convenient to carry.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a portable fan of telescopic, includes handheld pole, telescopic flabellum subassembly, flabellum actuating mechanism and telescopic face guard subassembly, flabellum actuating mechanism with handheld pole fixed mutually or articulated mutually, telescopic face guard subassembly cladding be in telescopic flabellum subassembly outside, just telescopic face guard subassembly fix flabellum actuating mechanism on.
Further, flabellum actuating mechanism include motor and motor casing, the motor casing with handheld pole fixed mutually or articulated mutually, the motor fix the motor casing in, the drive shaft of motor stretch out the motor casing with telescopic flabellum subassembly fixed mutually.
Further, telescopic flabellum subassembly include center seat and three sets of flabellum groups, the center seat with the drive shaft coaxial fixed of motor, three sets of flabellum group follow the circumferencial direction evenly distributed of center seat, the flabellum group include interior flabellum, well flabellum and the outer flabellum that cup joints in proper order from inside to outside, interior flabellum with well flabellum slidable relatively, well flabellum with outer flabellum slidable relatively, interior flabellum with center seat fixed mutually.
Furthermore, the outer fan blade is provided with an outer plug hole with two ends penetrating through, the middle fan blade penetrates through the outer plug hole, two sides of the big end of the middle fan blade are integrally provided with middle positioning blocks, the middle positioning blocks are clamped at the small end of the outer plug hole to prevent the middle fan blade from sliding out of the outer fan blade towards the center seat, the middle fan blade is provided with middle plug holes with two ends penetrating through, the inner fan blade penetrates through the middle plug holes, two sides of the big end of the inner fan blade are integrally provided with inner positioning blocks, and the inner positioning blocks are clamped at the small end of the middle plug holes to prevent the inner fan blade from sliding out of the middle fan blade towards the center seat.
Further, the little head end an organic whole of interior fan blade be provided with the joint piece of T type, the center seat on be provided with the joint annular, the outer periphery of center seat on be provided with the draw-in groove that the joint annular is linked together, the little head end card of joint piece be in the draw-in groove in, the big head end of joint piece be located the joint annular in, the center seat on the fixed end cover that is provided with, make interior fan blade fixed the center seat on.
Furthermore, the telescopic mask assembly comprises a front mask assembly and a rear mask assembly which are identical in structure, the rear mask assembly is fixed with the motor shell, the front mask assembly and the rear mask assembly are fixed through side rods, and a telescopic driving mechanism is arranged on the front mask assembly.
Furthermore, the front hood component comprises a front bottom plate and a plurality of groups of telescopic framework rod components which are uniformly distributed along the circumferential direction of the bottom plate, each framework rod component comprises at least one first telescopic rod, the inner end of each first telescopic rod is rotatably connected with the front bottom plate through a pin shaft, at least one group of connecting rod components is hinged between two adjacent groups of framework rod components, each connecting rod component comprises a first connecting rod and a second connecting rod, one end of each first connecting rod is hinged with one group of framework rod components, the other end of each first connecting rod is hinged with one end of each second connecting rod, the other end of each second connecting rod is hinged with the other group of framework rod components, the outer ends of the two adjacent groups of framework rod components are hinged with telescopic rod components, each telescopic rod component comprises a second telescopic rod and a third telescopic rod, and one end of each second telescopic rod is hinged with the outer end of one group of framework rod components, the other end of the second telescopic link with the one end of the third telescopic link articulated mutually, the other end of the third telescopic link articulated mutually with the outer end of another group's skeleton pole subassembly, the outer end of the skeleton pole subassembly in the preceding cover subassembly and the outer end of the corresponding skeleton pole subassembly in the back cover subassembly pass through the side lever fixed mutually, the back bottom plate in the back cover subassembly with the motor casing fixed mutually.
Furthermore, a support rod is fixedly arranged on a front bottom plate of the front hood assembly, and the support rod is rotatably connected with the center seat.
Further, the skeleton pole subassembly include two piece at least first telescopic links, first telescopic link along axial fixed connection in proper order.
Furthermore, the telescopic driving mechanism comprises a knob, a central gearwheel, a reduction gear set, a winding wheel and a central shaft, the central shaft is coaxially and rotatably connected with the front bottom plate, the winding wheel is coaxially fixed on the central shaft, the central gearwheel is coaxially sleeved on the central shaft, the inner end of a first telescopic rod in the front cover assembly is integrally provided with transmission gears, the transmission gears are sleeved on the pin shaft in a one-to-one correspondence manner, all the transmission gears are all meshed with the central gearwheel, the knob is fixed with the central shaft, the inner end surface of the knob is integrally provided with a driving pinion, the reduction gear set is coaxial with one of the transmission gears and is rotatably connected with the pin shaft, the reduction gear set comprises a gearwheel and a reduction pinion which are coaxially fixed, the drive pinion with the gear wheel mesh mutually, the speed reduction pinion with central gear wheel mesh mutually, the knob on be provided with positioning mechanism, every group the skeleton pole subassembly of preceding cover subassembly in all be provided with the stay cord, the stay cord axial pass the skeleton pole subassembly after radially pass drive gear with the reel radial fixation, make the reel rotate the time drive the stay cord winding, the skeleton pole subassembly of preceding cover subassembly in be provided with canceling release mechanical system.
Further, the reset mechanism is a first spring arranged in the first telescopic rod.
Furthermore, the positioning mechanism comprises a button, a T-shaped positioning pin, a sleeve and a second spring, a positioning hole is formed in the knob, the button penetrates into the positioning hole, the sleeve is fixed on one of the pin shafts of the front cover assembly, the T-shaped positioning pin is located in the sleeve, the small end of the T-shaped positioning pin penetrates out of the sleeve, when the small end of the T-shaped positioning pin extends into the positioning hole, the knob is positioned, the second spring is located in the sleeve, and the second spring abuts between the T-shaped positioning pin and the inner end face of the sleeve.
Compared with the prior art, the fan has the advantages that the fan blade component and the mask component in the fan can stretch out and draw back, so that the fan blade component and the mask component are in an extending state when the fan is used, and the wind power of the fan when the fan is used is ensured; when the fan is not used, the fan blade assembly and the mask assembly are in a contraction state, the size of the fan is reduced, the fan is convenient to carry, and the problem of contradiction between portability and wind power of the fan which always exists at present is solved.
Drawings
FIG. 1 is a schematic view of the present invention in an expanded state;
FIG. 2 is a schematic view of the present invention in a contracted state;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic structural diagram of the telescopic driving mechanism of the present invention;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is a cross-sectional view of the telescoping drive mechanism of the present invention;
FIG. 7 is a cross-sectional view of an skeletal rod assembly in accordance with the present invention;
FIG. 8 is a schematic view of a retractable fan blade assembly according to the present invention;
fig. 9 is a schematic view of the connection between the first telescopic rod and the rear bottom plate in the rear hood assembly of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in the figure, a portable fan of telescopic, including handheld pole 1, telescopic flabellum subassembly, flabellum actuating mechanism and telescopic face guard subassembly, flabellum actuating mechanism includes motor (not shown in the figure) and motor casing 3, motor casing 3 is fixed mutually or articulated mutually with handheld pole 1, the motor is fixed in motor casing 3, the drive shaft of motor stretches out motor casing 3 and is fixed mutually with telescopic flabellum subassembly, telescopic face guard subassembly cladding is outside telescopic flabellum subassembly, and telescopic face guard subassembly is fixed on motor casing 3. Specifically, the method comprises the following steps:
the telescopic fan blade assembly comprises a central seat 4 and three fan blade sets 5, the central seat 4 is coaxially fixed with a driving shaft of a motor 2, the three fan blade sets 5 are uniformly distributed along the circumferential direction of the central seat 4, each fan blade set 5 comprises an inner fan blade 51, a middle fan blade 52 and an outer fan blade 53 which are sequentially sleeved from inside to outside, an outer inserting hole 531 with two ends penetrating is arranged on each outer fan blade 53, each middle fan blade 52 penetrates through the outer inserting hole 531, middle positioning blocks 521 are integrally arranged on two sides of the large end of each middle fan blade 52, each middle positioning block 521 is clamped at the small end of each outer inserting hole 531 to prevent each middle fan blade 52 from sliding out of each outer fan blade 53 towards the central seat 4, an inner inserting hole 522 with two ends penetrating is arranged on each middle fan blade 52, each inner fan blade 51 penetrates through the corresponding middle inserting hole 522, inner positioning blocks 511 are integrally arranged on two sides of the large end of each inner fan blade 51, each inner positioning block 511 is clamped at the small end of each middle inserting hole 522 to prevent each inner fan blade 51 from sliding out of each middle fan blade 52 towards the direction of the central seat 4, a T-shaped clamping block 512 is integrally arranged at the small end of the inner fan blade 51, a clamping ring groove 41 is arranged on the central seat 4, a clamping groove 42 communicated with the clamping ring groove 41 is arranged on the outer circumferential surface of the central seat 4, the small end of the clamping block 512 is clamped in the clamping groove 42, the large end of the clamping block 512 is positioned in the clamping ring groove 41, and an end cover 43 is fixedly arranged on the central seat 4, so that the inner fan blade 51 is fixed on the central seat 4;
the telescopic mask component comprises a front mask component 6 and a rear mask component 7 which have the same structure, the front mask component 6 comprises a front bottom plate 61 and a plurality of groups of telescopic framework rod components 8 which are uniformly distributed along the circumferential direction of the front bottom plate 61, the framework rod components 8 comprise two first telescopic rods 81 which are fixedly connected along the axial direction, the inner ends of the first telescopic rods 81 are rotatably connected with the front bottom plate 61 through pin shafts 62, two groups of connecting rod components are hinged between two adjacent groups of framework rod components 8, each connecting rod component comprises a first connecting rod 9 and a second connecting rod 10, one end of the first connecting rod 9 is hinged with one group of framework rod components 8, the other end of the first connecting rod 9 is hinged with one end of the second connecting rod 10, the other end of the second connecting rod 10 is hinged with the other group of framework rod components 8, the outer ends of the two adjacent groups of framework rod components 8 are hinged with telescopic rod components, each telescopic rod component comprises a second telescopic rod 11 and a third telescopic rod 12, one end of a second telescopic rod 11 is hinged with the outer end of one group of framework rod assemblies 8, the other end of the second telescopic rod 11 is hinged with one end of a third telescopic rod 12, the other end of the third telescopic rod 12 is hinged with the outer end of the other group of framework rod assemblies 8, the outer end of the framework rod assembly 8 in the front cover assembly 6 is fixed with the outer end of the corresponding framework rod assembly 8 in the rear cover assembly 7 through a side rod 13, a support rod 63 is fixedly arranged on a front bottom plate 61 of the front cover assembly 6, the support rod 63 is rotatably connected with an end cover 43, and a rear bottom plate 71 in the rear cover assembly 7 is fixed with the motor shell 3;
the front cover component 6 is provided with a telescopic driving mechanism, the telescopic driving mechanism comprises a knob 14, a central big gear 15, a reduction gear set 16, a winding wheel 17 and a central shaft 18, the central shaft 18 is coaxially and rotatably connected with the front bottom plate 61, the winding wheel 17 is coaxially fixed on the central shaft 18, the central big gear 15 is coaxially sleeved on the central shaft 18, the inner end of a first telescopic rod 81 in the front cover component 6 is integrally provided with transmission gears 82, the transmission gears 82 are sleeved on a pin shaft 62 in a one-to-one correspondence manner, all the transmission gears 82 are meshed with the central big gear 15, the knob 14 is fixed with the central shaft 18, the inner end surface of the knob 14 is integrally provided with a driving pinion 141, the reduction gear set 16 is coaxial with one of the transmission gears 82 and rotatably connected with the pin shaft 62, the reduction gear set 16 comprises a big gear 161 and a reduction pinion 162 which are coaxially fixed, and the driving pinion 141 is meshed with the big gear 161, the speed reduction pinion 162 is meshed with the central gearwheel 15, the knob 14 is provided with a positioning mechanism, each group of framework rod assemblies 8 of the front cover assembly 6 is provided with a pull rope 19, the pull ropes 19 axially penetrate through the framework rod assemblies 8 and then radially penetrate through the transmission gear 82 to be radially fixed with the winding wheel 17, so that the winding wheel 17 drives the pull ropes 19 to be wound on the winding wheel when rotating, the framework rod assemblies 8 of the front cover assembly 6 are provided with a reset mechanism, and the reset mechanism is a first spring 83 arranged in the first telescopic rod 81;
the positioning mechanism comprises a button 20, a T-shaped positioning pin 21, a sleeve 22 and a second spring 23, a positioning hole 142 is formed in the knob 14, the button 20 penetrates into the positioning hole 142, the sleeve 22 is fixed on one pin 62 of the front mask assembly 6, the T-shaped positioning pin 21 is located in the sleeve 22, the small end of the T-shaped positioning pin 21 penetrates out of the sleeve 22, when the small end of the T-shaped positioning pin 21 extends into the positioning hole 142, the knob 14 is positioned, the second spring 23 is located in the sleeve 22, and the second spring 23 abuts between the T-shaped positioning pin 21 and the inner end face of the sleeve 22.
In the above embodiment, the method for extending and retracting the portable fan includes: when the fan is not used, the button 20 is pressed to push the T-shaped positioning pin 21 to move into the sleeve 22 to separate from the positioning hole 142 on the knob 14, the second spring 23 is compressed, then the knob 14 in the telescopic driving mechanism is rotated, the driving pinion 141 drives the large gear 161 and the reducing pinion 162 in the reducing gear set 16 to rotate, the reducing pinion 162 drives the central large gear 15 to rotate, the central large gear 15 drives all the transmission gears 82 to synchronously rotate, all the framework rod assemblies 8 in the front cover assembly 6 are rotated, meanwhile, the knob 14 drives the rolling wheel 17 to rotate through the central shaft 18, the pull ropes 19 in all the framework rod assemblies 8 are synchronously wound on the rolling wheel 17, the pull ropes 19 drive the first telescopic rods 81 in the framework rod assemblies 8 to contract, meanwhile, the first spring 83 is compressed, because the framework rod assemblies 8 are contracted while rotating under the action of the telescopic driving mechanism, so that the connecting rod assembly and the telescopic rod assembly between the skeleton rod assemblies 8 are also folded and contracted simultaneously, and the whole front cover assembly 6 is in a contracted state; the outer end of the framework rod component 8 in the front cover component 6 and the outer end of the framework rod component 8 in the corresponding rear cover component 7 are fixed through the side rods 13, the rear cover component 7 is synchronously driven to contract while the front cover component 6 contracts through the connection effect of the side rods 13, and when the whole cover component contracts, the outer fan sheet 53 and the middle fan sheet 52 in the telescopic fan blade component are pushed to sequentially contract inwards, so that the whole fan is contracted, the volume is reduced, and the fan is convenient to carry; and when the knob 14 is rotated once, the T-shaped positioning pin 21 is inserted into the positioning hole 142 by the elastic force of the second spring 23, so that the rotation 14 is positioned.
When the fan needs to be used, the button 20 is pressed again, the T-shaped positioning pin 21 is pushed to move into the sleeve 22 to be separated from the positioning hole 142 on the knob 14, then the knob 14 is rotated reversely, the framework rod assemblies 8 in the front mask assembly 6 are rotated and reset, meanwhile, the first telescopic rods 81 are extended and reset under the action of the elastic force of the first springs 83, the connecting rod assemblies and the telescopic rod assemblies between the framework rod assemblies 8 are also extended and reset simultaneously, so that the front mask assembly 6 is in an extended state, the front mask assembly 6 drives the rear mask assembly 7 to be extended and reset simultaneously, and the whole mask assembly is in an extended state; after the knob 14 rotates one turn, the T-shaped positioning pin 21 extends into the positioning hole 142 again under the action of the elastic force of the second spring 23, so that the knob 14 is positioned; then the fan is started, the motor drives the telescopic fan blade assembly to rotate, the middle fan blade 52 and the outer fan blade 53 extend outwards under the action of centrifugal force, and the wind power of the fan during use is guaranteed.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.

Claims (10)

1. The utility model provides a portable fan of telescopic, its characterized in that includes handheld pole, telescopic flabellum subassembly, flabellum actuating mechanism and telescopic face guard subassembly, flabellum actuating mechanism with handheld pole fixed mutually or articulated mutually, telescopic face guard subassembly cladding be in telescopic flabellum subassembly outside, just telescopic face guard subassembly fix flabellum actuating mechanism on.
2. A retractable, portable fan, as recited in claim 1, further comprising: the fan blade driving mechanism comprises a motor and a motor shell, the motor shell is fixed with the handheld rod or hinged to the handheld rod, the motor is fixed in the motor shell, and a driving shaft of the motor extends out of the motor shell and is fixed with the telescopic fan blade assembly.
3. A retractable, portable fan, as recited in claim 2, further comprising: telescopic flabellum subassembly include center seat and three sets of flabellum groups, the center seat with the drive shaft coaxial fixed of motor, three sets of the flabellum group follow the circumferencial direction evenly distributed of center seat, the flabellum group include interior flabellum, well flabellum and the outer flabellum that cup joints in proper order from inside to outside, interior flabellum with well flabellum slidable relatively, well flabellum with outer flabellum slidable relatively, interior flabellum with center seat fixed mutually.
4. A retractable, portable fan, as recited in claim 3, further comprising: the outer fan blade is provided with outer inserting holes with two ends penetrating through, the middle fan blade penetrates through the outer inserting holes, middle positioning blocks are integrally arranged on two sides of a big head end of the middle fan blade and clamped at a small head end of the outer inserting holes to prevent the middle fan blade from sliding out of the outer fan blade towards the center seat, middle inserting holes with two ends penetrating through are arranged on the middle fan blade, the inner fan blade penetrates through the middle inserting holes, inner positioning blocks are integrally arranged on two sides of a big head end of the inner fan blade and clamped at a small head end of the middle inserting holes to prevent the inner fan blade from sliding out of the middle fan blade towards the center seat.
5. A retractable, portable fan, as recited in claim 3, further comprising: interior fan blade's little head end an organic whole be provided with the joint piece of T type, the center seat on be provided with the joint annular, the outer periphery of center seat on be provided with the draw-in groove that the joint annular is linked together, the little head end card of joint piece be in the draw-in groove in, the major part end of joint piece be located the joint annular in, the center seat on the fixed end cover that is provided with, make interior fan blade fixed the center seat on.
6. A retractable, portable fan, as recited in claim 3, further comprising: the telescopic mask component comprises a front mask component and a rear mask component which are identical in structure, the rear mask component is fixed with the motor shell, the front mask component is fixed with the rear mask component through a side rod, and a telescopic driving mechanism is arranged on the front mask component.
7. A retractable, portable fan, as recited in claim 6, further comprising: the front hood component comprises a front bottom plate and a plurality of groups of telescopic framework rod components which are uniformly distributed along the circumferential direction of the front bottom plate, each framework rod component comprises at least one first telescopic rod, the inner end of each first telescopic rod is rotatably connected with the front bottom plate through a pin shaft, at least one group of connecting rod components is hinged between every two adjacent groups of framework rod components, each connecting rod component comprises a first connecting rod and a second connecting rod, one end of each first connecting rod is hinged with one group of framework rod components, the other end of each first connecting rod is hinged with one end of each second connecting rod, the other end of each second connecting rod is hinged with the other group of framework rod components, the outer ends of the two adjacent groups of framework rod components are hinged with telescopic rod components, each telescopic rod component comprises a second telescopic rod and a third telescopic rod, and one end of each second telescopic rod is hinged with the outer end of one group of framework rod components, the other end of second telescopic link with the one end of third telescopic link articulated mutually, the other end of third telescopic link articulated mutually with the outer end of another group skeleton pole subassembly, the outer end of the skeleton pole subassembly in the preceding cover subassembly pass through with the outer end of the corresponding skeleton pole subassembly in the back cover subassembly the side lever fixed mutually, the preceding bottom plate of preceding cover subassembly on fixed be provided with the bracing piece, the bracing piece with center seat rotate to be connected, the back bottom plate in the back cover subassembly with the motor casing fixed mutually.
8. A retractable, portable fan, as recited in claim 7, further comprising: the framework rod assembly comprises at least two first telescopic rods which are fixedly connected in sequence along the axial direction.
9. A retractable, portable fan, as recited in claim 7, further comprising: the telescopic driving mechanism comprises a knob, a central gearwheel, a reduction gear set, a winding wheel and a central shaft, wherein the central shaft is coaxially and rotationally connected with the front bottom plate, the winding wheel is coaxially fixed on the central shaft, the central gearwheel is coaxially sleeved on the central shaft, the inner end of a first telescopic rod in the front cover assembly is integrally provided with transmission gears, the transmission gears are sleeved on the pin shaft in a one-to-one correspondence manner, all the transmission gears are all meshed with the central gearwheel, the knob is fixed with the central shaft, the inner end surface of the knob is integrally provided with a driving pinion, the reduction gear set is coaxial with one of the transmission gears and rotationally connected with the pin shaft, the reduction gear set comprises a gearwheel and a reduction pinion which are coaxially fixed, and the driving pinion is meshed with the gearwheel, the speed reduction pinion with the central gear wheel mesh mutually, the knob on be provided with positioning mechanism, every group the skeleton pole subassembly of front shroud subassembly in all be provided with the stay cord, the stay cord axial pass the skeleton pole subassembly after radially pass drive gear with the winding wheel radial fixity, make the winding wheel drive when rotating the stay cord winding, the skeleton pole subassembly of front shroud subassembly in be provided with canceling release mechanical system, canceling release mechanical system be for setting up first spring in the first telescopic link.
10. A retractable, portable fan, as recited in claim 9, further comprising: the positioning mechanism comprises a button, a T-shaped positioning pin, a sleeve and a second spring, a positioning hole is formed in the knob, the button penetrates into the positioning hole, the sleeve is fixed on one of the pin shafts of the front cover assembly, the T-shaped positioning pin is located in the sleeve, the small end of the T-shaped positioning pin penetrates out of the sleeve, when the small end of the T-shaped positioning pin extends into the positioning hole, the knob is positioned, the second spring is located in the sleeve, and the second spring abuts between the T-shaped positioning pin and the inner end face of the sleeve.
CN202111080669.2A 2021-09-15 2021-09-15 Telescopic portable fan Active CN113623253B (en)

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