CN215444469U

CN215444469U - Hand-held split type fan

Info

Publication number: CN215444469U
Application number: CN202121080776.0U
Authority: CN
Inventors: 谢谨逊; 龙啸; 史耀军
Original assignee: 浙江德硕电器有限公司
Current assignee: Zhejiang Deshuo Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2022-01-07
Anticipated expiration: 2031-05-19

Abstract

The utility model discloses a handheld split type fan which comprises a fan head and a driving host machine, wherein the fan head and the driving host machine are detachably connected, the driving host machine comprises a shell, the driving host machine is provided with a motor arranged in the shell, the motor is provided with a rotating shaft, the fan head is provided with a fan wheel linked with the motor, the rotating shaft center of the fan wheel is collinear with the rotating shaft center of the motor, and wind power generated by the rotation of the fan wheel is vertical to the rotating shaft center of the motor. Compared with the prior art, the fan head has the advantages that the fan head is detachably connected with the driving host, so that the fan head is convenient to disassemble, carry and store; the driving host is provided with the motor arranged in the shell, so that the motor is protected from being impacted by foreign objects when the motor is not connected with an external fan head, the rotating axis of the fan wheel and the axis of the rotating shaft of the motor are not easy to deviate when the fan head is connected with the driving host, and the service life of the handheld split type fan is prolonged; the wind power generated by the rotation of the fan wheel is vertical to the axis of the rotating shaft of the motor, so that the guide and the folding are convenient.

Description

Hand-held split type fan

Technical Field

The utility model relates to the technical field of electric tools, in particular to a fan, and particularly relates to a handheld split type fan.

Background

The existing hand-held fan mostly adopts a motor and a fan wheel to be arranged in the same shell, in order to save the manufacturing cost, the fan wheel in part of the hand-held fan rotates coaxially with the motor, the generated wind force is blown out along the axial direction of the fan wheel, the generated wind force is not easy to be guided and gathered, and the fan is large in size.

The detachable design of part hand-held type fan is convenient for the fan aircraft nose installation, and the host computer pivot of connecting the fan aircraft nose generally exposes outside, easily receives the foreign object striking to lead to the pivot off-centre during daily use, and the fan wheel rotation axle center skew in the fan aircraft nose influences life.

The handheld split type fan has the advantages that the size of the fan is reduced, the service life is prolonged, and the wind power can be guided conveniently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a handheld split type fan which is small in size, long in service life and convenient for guiding wind power.

The technical scheme adopted by the utility model for solving the technical problems is as follows: handheld split type fan, its characterized in that is including the fan aircraft nose and the host computer that can dismantle the connection, the host computer that drives includes the casing, and the host computer that drives is equipped with the motor of installing in the casing, the motor is equipped with the pivot, and the fan aircraft nose is equipped with the impeller with the motor linkage, and the impeller rotates axle center and motor shaft axle center collineation, and the perpendicular motor shaft center of wind-force that the impeller rotation produced.

Furthermore, the fan head comprises a connecting shell and a housing which are fixedly installed, the fan wheel is rotatably installed on the connecting shell, and the fan wheel is located between the connecting shell and the housing.

Furthermore, the fan head comprises an air guide pipe, and the air guide pipe and the connecting shell/housing are integrally formed.

Furthermore, the fan aircraft nose includes the guide duct, and the connection shell and/or the housing of fixed mounting can be dismantled in the guide duct connection.

Furthermore, a connecting assembly detachably connected with the driving host is fixed on the fan head.

Furthermore, coupling assembling is including installing the spacing connecting piece on the connection shell, and spacing connecting piece can be dismantled with the host computer of drive and be connected.

Furthermore, a deflector rod connected with a forward and reverse rotation switch of the control motor is arranged on the driving host, a limiting part is arranged on the fan head/limiting connecting piece, and the limiting part limits the deflector rod adjusting switch.

Furthermore, the fan wheel is connected with the transmission shaft, and a spline is arranged between the transmission shaft and the rotating shaft for linkage connection.

Furthermore, a cushion block is arranged on the connecting shell, and a limiting section which is abutted against the cushion block is arranged on the transmission shaft.

Furthermore, the connecting shell is provided with a limiting block, the transmission shaft is provided with a clamp spring, and the limiting block, the limiting block and the clamp spring are matched to limit the transmission shaft to be separated from the connecting shell.

Compared with the prior art, the utility model has the advantages that the fan head is detachably connected with the driving host machine, so that the fan head is convenient to disassemble and carry; the driving host is provided with the motor arranged in the shell, so that the motor is protected from being impacted by foreign objects when the motor is not connected with an external fan head, the rotating axis of the fan wheel and the axis of the rotating shaft of the motor are not easy to deviate when the fan head is connected with the driving host, and the service life of the handheld split type fan is prolonged; the wind power generated by the rotation of the fan wheel is vertical to the axis of the rotating shaft of the motor, so that the guide and the folding are convenient.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and therefore should not be taken as limiting the scope of the utility model, and further that, unless otherwise indicated, the drawings are only schematic in nature and represent compositions or configurations of the described objects and may contain exaggerated displays, and that the drawings are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram of a handheld split type blower;

FIG. 2 is an exploded view of a hand-held split blower;

FIG. 3 is a schematic structural diagram of a driving host;

FIG. 4 is a partial cross-sectional view of a blower head;

FIG. 5 is a schematic structural view of an air guide duct;

FIG. 6 is a cross-sectional view of the housing;

FIG. 7 is a cross-sectional view of the coupling housing;

FIG. 8 is a schematic structural view of a transmission shaft;

FIG. 9 is a schematic structural diagram of a position limiting member;

FIG. 10 is a partial cross-sectional view of a connection assembly

FIG. 11 is a schematic view of a spacing connector;

FIG. 12 is a cross-sectional view of the spline housing.

In the figure: 001. driving a host: 1. a rotating shaft; 2. a spline shaft; 3. a deflector rod;

002. a fan head: 4. a fan wheel; 5. the device comprises a transmission shaft 5-1, a first connecting section 5-2, a second connecting section 5-3, a binding surface 5-4, a connecting part 5-5, a limiting section 5-6, an insertion section I5-7, an insertion section II 5-8, a clamping groove I5-9 and a spacing section; 6. the connecting shell 6-1, the connecting end II, 6-2, the protrusion II, 6-3, the external connecting section 6-4, the through hole I, 6-5, the mounting part I, 6-6, the mounting hole I, 6-7, the mounting part II, 6-8, the through groove 6-9 and the buckling surface; 7. the heat dissipation device comprises a housing, 7-1, a first connecting end, 7-2, a first bulge, 7-3 and a heat dissipation port; 8. 8-1 of an air guide pipe, 8-2 of an insertion section, 8-3 of an opening, 8-4 of a channel, 8-5 of a limiting hole, 8-6 of a guide surface, 8-7 of an air outlet and a concave-convex pattern; 9. cushion blocks; 10. a limiting block; 11. a clamp spring I; 12. the device comprises a limiting piece 12-1, a wrapping ring 12-2, a limiting rib 12-3, a connecting buckle 12-4 and a barb; 13. a first fixing part; 14. a second fixing part;

003. connecting components: 15. the limiting connecting piece is 15-1, the second through hole is 15-2, the third mounting part is 15-3, the second mounting hole is 15-4, and the limiting connecting section is arranged; 16. a bearing; 17. 17-1 parts of spline housing, 17-2 parts of plug bush, 17-3 parts of spline hole, 17-4 parts of plug shaft, 17-5 parts of clamping groove II, 17-6 parts of jack and rotation limiting surface; 18. a second clamp spring; 19. and a third fixing part.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and those skilled in the art will appreciate that the descriptions are illustrative only, exemplary and should not be construed as limiting the scope of the present invention.

It should be noted that: like reference numerals refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

This embodiment mainly explains reducing fan volume, increase of service life and being convenient for the direction and gathering together handheld split type fan of closing wind-force, specifically as follows:

as shown in fig. 1~3, handheld split type fan, including dismantling fan aircraft nose 002 and the host computer of drive 001 of connecting, be fixed with coupling assembling 003 on the fan aircraft nose 002, coupling assembling 003 can be dismantled and connect host computer of drive 001, be equipped with the motor of connecting power and circular telegram work in the host computer of drive 001, the motor is equipped with pivoted pivot 1, host computer of drive 001 includes the casing, motor and pivot 1 are installed in the casing, and fan aircraft nose 002 inserts demountable installation in the casing of host computer of drive 001 through coupling assembling 003.

Preferably, the driving main unit 001 is an existing component, and the detailed structure can refer to the patent with the publication number of CN212578534U and the patent name of the head-body quick-change structure of the multifunctional power tool and the multifunctional power tool, wherein the driving main unit 001 is a component of the patent except for the components included in the head.

As shown in fig. 4, a cavity is formed in the fan head 002, a fan wheel 4 capable of rotating to generate wind power is arranged in the cavity of the fan head 002, a transmission shaft 5 for connecting the motor rotating shaft 1 and the fan wheel 4 is arranged in the fan head 002, a spline connection is formed between the rotating shaft 1 and the transmission shaft 5, and the rotating axes of the fan wheel 4, the transmission shaft 5 and the rotating shaft 1 are collinear.

The fan head 002 comprises a connecting shell 6 and a housing 7 which are covered outside the fan wheel 4 and the transmission shaft 5, the connecting shell 6 and the housing 7 are respectively provided with a local cavity, the fan wheel 4 is arranged between the connecting shell 6 and the housing 7 to be rotatably installed, and the connecting shell 6 is fixedly installed on a limiting connecting piece 15 arranged on the connecting component 003.

Connecting shell 6 passes through screw fixed mounting on spacing connecting piece 15, and can be equipped with sand grip and recess cooperation between connecting shell 6 and spacing connecting piece 15, and housing 7 covers on connecting shell 6 and through modes fixed mounting such as screws, forms complete cavity between housing 7 and connecting shell 6.

The motor rotating shaft 1 rotates, the fan wheel 4 is driven by the spline and the transmission shaft 5 to generate wind power, the wind power generated by the fan wheel 4 is perpendicular to the rotating axis of the straight fan wheel 4, the air guide pipe 8 is detachably connected with the connecting shell 6 and/or the housing 7 in a buckling mode or the like, and preferably, the air guide pipe 8 and the connecting shell 6/the housing 7 can be integrally formed.

As shown in figure 5, one end of an air guide pipe 8 is provided with an insertion section 8-1 with a cylindrical structure, the outer wall of the air guide pipe 8, which is close to the insertion section 8-1, is provided with a plurality of friction-enhancing raised grains 8-7, the insertion section 8-1 is provided with a limiting connection section 15-4, the limiting connection section 15-4 comprises an opening 8-2 which is radially penetrated and axially arranged at the port of the insertion section 8-1, the opening 8-2 is connected with a channel 8-3 which is radially penetrated, the other end of the channel 8-3 is connected with a limiting hole 8-4 which is also radially penetrated, an obliquely arranged guide surface 8-5 is arranged between the opening 8-2 and the channel 8-3, and preferably, the width size of the channel 8-3 is smaller than the aperture of the limiting hole 8-4.

In order to facilitate the wind power generated by the fan wheel 4 to be gathered and blown out, the other end of the air guide pipe 8 is provided with an air outlet 8-6, and the size of the air outlet 8-6 is smaller than the inner diameter of the insertion section 8-1.

As shown in fig. 6, the housing 7 is provided with a first connecting end 7-1, the inner wall of the first connecting end 7-1 is provided with a first protrusion 7-2 capable of being clamped with the insertion section 8-1 of the air guide pipe 8, because the wind power generated by the fan wheel 4 is perpendicular to the rotation axis of the straight fan wheel 4 in the embodiment, the housing 7 is provided with a heat dissipation port 7-3, when the housing 7 and the connecting shell 6 are fixedly installed, the heat dissipation port 7-3 on the housing 7 is located above the fan wheel 4, preferably, when an external pipeline is located at the heat dissipation port 7-3, the fan can be used for air extraction.

As shown in FIG. 7, the connecting shell 6 is provided with a connecting end II 6-1, the inner wall of the connecting end II 6-1 is provided with a protrusion II 6-2 which can be clamped with the inserting section 8-1 of the air guide pipe 8, and preferably, the positions of the protrusion I7-2 on the housing 7, the protrusion II 6-2 on the connecting shell 6 and the limiting connecting section 15-4 on the air guide pipe 8 can be interchanged.

In this embodiment, the transmission shaft 5 is rotatably and limitedly mounted on the connecting shell 6, as shown in fig. 8, one end of the transmission shaft 5 is provided with a first connecting section 5-1, the other end is provided with a second connecting section 5-2 for connecting a spline, and the second connecting section 5-2 is provided with a binding surface 5-3.

The fan wheel 4 is sleeved and fixed on the first connecting section 5-1, in order to prevent the fan wheel 4 from being separated from the rotating shaft in the axial direction, a connecting part 5-4 is arranged at one axial end of the first connecting section 5-1, a first fixing part 13 is arranged on the connecting part 5-4, and the first fixing part 13 is arranged at one end of the transmission shaft 5 in a threaded or buckled mode.

The wind power generated by the rotation of the fan wheel 4 is related to the arrangement of fan blades on the fan wheel 4, namely, the fan wheel 4 can only generate wind power in the forward rotation/reverse rotation process, in order to ensure that the fan wheel 4 is in the forward rotation/reverse rotation state when the motor rotates, the driving host 001 is provided with a shifting rod 3 connected with and controlling a forward and reverse rotation switch of the motor, the fan head 002/limiting connecting piece 15 is provided with a limiting piece 12, the limiting piece 12 limits the shifting rod 3 to move the switch, namely, the limiting switch can not adjust the forward and reverse rotation of the motor, and the motor can only rotate in the forward/reverse rotation process.

The connecting shell 6 is provided with an external section 6-3 provided with a limiting piece 12, and as shown in fig. 9, in order to enhance the integral aesthetic property, the limiting piece 12 is provided with a wrapping ring 12-1, the wrapping ring 12-1 is wrapped on the external section 6-3 of the connecting shell 6, and the limiting piece 12 is provided with a limiting rib 12-2 inserted into the driving host 001 to limit the adjustment of the deflector rod 3.

The limiting part 12 and the connecting shell 6 are matched and quickly connected in a buckling mode, a notch mode and the like, a plurality of connecting buckles 12-3 with barbs 12-4 are arranged on the limiting part 12, a plurality of through grooves 6-8 penetrating through the connecting shell 6 are arranged on the connecting shell 6, the connecting buckles 12-3 on the limiting part 12 are inserted into the connecting shell 6 from the through grooves 6-8 of the connecting shell 6, buckling surfaces 6-9 are arranged in the connecting shell 6, the barbs 12-4 on the connecting buckles 12-3 are attached to the buckling surfaces 6-9, the limiting part 12 is limited to be separated from the connecting shell 6, and preferably, limiting ribs 12-2 on the limiting part 12 can be integrally formed with the connecting shell 6/the limiting connecting part 15.

The external section 6-3 of the connecting shell 6 is provided with a through perforation I6-4, the perforation I6-4 is communicated with a local cavity on the connecting shell 6, one end of the perforation I6-4 is provided with a mounting part I6-5, the mounting part I6-5 is communicated with the local cavity on the connecting shell 6, the size of the mounting part I6-5 is larger than the size of the perforation I6-4, the other end of the transmission shaft 5 is inserted into the perforation I6-4 from the end provided with the local cavity on the connecting shell 6, a cushion block 9 is arranged at the mounting part I6-5 of the connecting shell 6, the cushion block 9 is sleeved on the transmission shaft 5, simultaneously, in order to prevent the fan wheel 4 on the transmission shaft 5 from rubbing the cushion block 9 when rotating, the other end of the first connecting section 5-1 is provided with a limiting section 5-5, and the other end of the limiting section 5-5 is provided with an insertion end I5-6 sleeved on the cushion block 9, the limiting section 5-5 abuts against the cushion block 9 and is isolated from the contact of the fan wheel 4 with the cushion block 9, in order to avoid that the cushion block 9 drives the transmission shaft 5 to be separated from the through hole I6-4 due to the fact that a product shakes when in use, the periphery of the first mounting part 6-5 of the connecting shell 6 is provided with a plurality of first mounting holes 6-6 capable of mounting the second mounting part 14, preferably, the second mounting part 14 comprises a screw with a nut, and the nut on the screw is locally pressed at the opening part of the first mounting part 6-5 to limit the cushion block 9 to be separated from the first mounting part 6-5.

The transmission shaft 5 is easy to rotate and float upwards due to wind power generated by the rotation of the fan wheel 4, the connecting shell 6 is also provided with a limiting block 10 for limiting the transmission shaft 5 to rotate and float upwards, the connecting shell 6 is provided with a second mounting part 6-7 for mounting the limiting block 10, the second mounting part 6-7 is positioned at the other end of the first perforation 6-4, the size of the second mounting part 6-7 is larger than that of the first perforation 6-4, and the transmission shaft 5 is provided with an insertion end II 5-7 which is sleeved on the limiting block 10 in a penetrating way, a spacing section 5-9 is arranged between the insertion end I5-6 and the insertion end II 5-7, in addition, in order to facilitate quick installation and avoid the falling of the limiting block 10, the side wall of the insertion end II 5-7 far away from the spacing section 5-9 is provided with a clamping groove I5-8 capable of installing the clamp spring I11, and the cushion block 9, the limiting block 10 and the clamp spring I11 are matched to limit the transmission shaft 5 to be separated from the through hole I6-4 of the connecting shell 6.

Preferably, the fan wheel 4, the cushion block 9 and the limiting block 10 which are sleeved on the transmission shaft 5 are provided with intervals, and the cushion block 9 and the limiting block 10 can be provided with bearings for assisting the rotation of the transmission shaft 5.

The spline for connecting the motor rotating shaft 1 and the transmission shaft 5 comprises a spline shaft 2 and a spline housing 17, the spline shaft 2 is fixedly installed on the motor rotating shaft 1, as shown in fig. 10, the connecting assembly 003 comprises the spline housing 17 installed in the limit connecting piece 15, in order to ensure that the transmission shaft 5 rotates smoothly and does not wear the limit connecting piece 15, the limit connecting piece 15 is internally provided with a bearing 16 for assisting in rotating, the bearing 16 is installed on the spline housing 17 in a penetrating manner, the bearing 16 is installed on the limit connecting piece 15 through a fixing piece III 19 in a matched manner, preferably, the second connecting section 5-2 of the transmission shaft 5 is installed by inserting the spline housing 17, and the fixing piece III 19 comprises a screw with a nut.

As shown in fig. 11, the limit connecting piece 15 is provided with a second through hole 15-1, one end of the second through hole 15-1 is provided with a third mounting part 15-2 with the inner dimension larger than the aperture of the second through hole 15-1, the bearing 16 is mounted at the third mounting part 15-2, the periphery of the third mounting part 15-2 is provided with a plurality of second mounting holes 15-3, and the third fixing piece 19 is in threaded connection with the second mounting holes 15-3 and limits the bearing 16 to be separated from the limit connecting piece 15.

The limit connecting piece 15 is provided with a limit connecting section 15-4 which is connected with the driving host 001 and limits the separation from the driving host 001, preferably, the structure of the limit connecting section 15-4 can refer to the structure with the publication number of CN212578534U, the patent name is the head and body quick-change structure of the multifunctional power tool and the structure described by the connector in the patent of the multifunctional power tool, and the matching between the limit connecting section 15-4 and the driving host 001 can refer to the connection relationship between the connector and the host in the patent.

When the fan head 002 and the driving main machine 001 are installed for use, the spline housing 17 and the insert 17-1 are installed on the spline shaft 2, and the motor rotates, the spline shaft 2 drives the spline housing 17, the transmission shaft 5 and the fan wheel 4 to rotate for work.

As shown in FIG. 12, an insert sleeve 17-1 is arranged at one end of the spline sleeve 17, a spline hole 17-2 is arranged at the axis of the insert sleeve 17-1, the spline hole 17-2 is connected with a spline shaft 2 on the motor rotating shaft 1 in a matching manner, and the spline hole 17-2 is communicated with the end part of the insert sleeve 17-1.

The other end of the spline housing 17 is provided with an insertion shaft 17-3, the outer dimension of the insertion shaft 17-3 is smaller than that of the insertion housing 17-1, the insertion shaft 17-3 is inserted into the bearing 16 for installation, the end part of the bearing 16 abuts against the end part of the insertion housing 17-1, the side wall of the insertion shaft 17-3, far away from the insertion housing 17-1, is provided with a second clamping groove 17-4 capable of installing a second clamping spring 18, preferably, the second clamping spring 18 limits the bearing 16 to be separated from the spline housing 17, and a gasket can be arranged between the end part of the bearing 16 and the end part of the insertion housing 17-1.

The center of the inserting shaft 17-3 is provided with an inserting hole 17-5, the side wall of the inserting hole 17-5 is provided with a rotation limiting surface 17-6, the rotation limiting surface 17-6 is close to the axis of the inserting hole 17-5, the second connecting section 5-2 of the transmission shaft 5 is inserted into the inserting hole 17-5, the binding surface 5-3 on the second connecting section 5-2 is attached to the rotation limiting surface 17-6 in the inserting hole 17-5, and when the spline shaft 2 on the motor rotating shaft 1 drives the spline sleeve 17 to rotate, the spline sleeve 17 can also drive the transmission shaft 5 to rotate.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the products of the present invention usually put in use, are only for convenience of describing the present invention and simplifying the description, but do not refer to or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

While the above detailed description of the handheld split-type air blower provided by the present invention has been provided, and the principle and the embodiments of the present invention have been described herein by using specific examples, the above description of the embodiments is only for the purpose of facilitating understanding of the present invention and the core idea, it should be noted that, for those skilled in the art, many modifications and modifications may be made to the present invention without departing from the principle of the present invention, and these modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. Handheld split type fan, its characterized in that is including the fan aircraft nose and the host computer that can dismantle the connection, the host computer that drives includes the casing, and the host computer that drives is equipped with the motor of installing in the casing, the motor is equipped with the pivot, and the fan aircraft nose is equipped with the impeller with the motor linkage, and the impeller rotates axle center and motor shaft axle center collineation, and the perpendicular motor shaft center of wind-force that the impeller rotation produced.

2. The handheld split type fan of claim 1, wherein the fan head comprises a connecting shell and a cover shell which are fixedly installed, the fan wheel is rotatably installed on the connecting shell, and the fan wheel is located between the connecting shell and the cover shell.

3. The hand-held split blower of claim 2 wherein the blower head includes a duct integrally formed with the connecting shell/shroud.

4. The hand-held split type fan according to claim 2, wherein the fan head comprises an air guide pipe, and the air guide pipe is detachably connected with the fixedly installed connecting shell and/or the cover shell.

5. The handheld split type fan of claim 2, wherein the fan head is fixed with a connection assembly detachably connected with the main driving unit.

6. The handheld split type fan of claim 5, wherein the connection assembly comprises a limit connector mounted on the connection housing, and the limit connector is detachably connected with the main drive unit.

7. The handheld split type fan according to claim 6, wherein the driving host is provided with a deflector rod connected with a forward and reverse rotation switch of the control motor, and the fan head/limiting connecting piece is provided with a limiting piece which limits the deflector rod adjusting switch.

8. The hand-held split type fan according to claim 2, wherein the fan wheel is connected with the transmission shaft, and a spline linkage connection is arranged between the transmission shaft and the rotating shaft.

9. The handheld split type fan according to claim 8, wherein the connecting shell is provided with a cushion block, and the transmission shaft is provided with a limit section which abuts against the cushion block.

10. The handheld split type fan according to claim 9, wherein the connecting shell is provided with a limiting block, the transmission shaft is provided with a clamp spring, and the cushion block, the limiting block and the clamp spring are matched to limit the transmission shaft from being separated from the connecting shell.