CN112780596A - Pitching structure and blowing device - Google Patents

Abstract

The invention discloses a pitching structure and a blowing device, wherein the pitching structure comprises a machine head, a support and a pitching driving piece, the support comprises a first split body and a second split body which are arranged at intervals, the machine head is arranged between the first split body and the second split body, the machine head is respectively and rotatably connected with the first split body and the second split body, the pitching driving piece is used for driving the machine head to rotate relative to the support, and the center of gravity of the machine head is positioned on a rotating axis of the machine head relative to the support. Above-mentioned every single move structure, because the focus of aircraft nose is located the relative support pivoted axis of rotation of aircraft nose, drive aircraft nose every single move this moment and shake the head and need not to overcome the moment of torsion of the relative axis of rotation of focus of aircraft nose, consequently the moment of torsion that needs is less, and the moment of torsion between aircraft nose and the support mainly produces by the frictional force of aircraft nose and leg joint department, the power of every single move driving piece output can be more smooth drive aircraft nose every single move and shake the head, it is easier to the regulation of shaking the head of aircraft nose every single move, the every single move that makes the aircraft nose is shaken the head more smoothly.

Description

Pitching structure and blowing device

Technical Field

The invention relates to the technical field of blowing devices, in particular to a pitching structure and a blowing device.

Background

The fan is used as an electric appliance for cooling and increasing indoor air circulation in the household appliance, and has the advantages of low price, convenience in use and the like, and the demand is large. Along with people's requirement to indoor environment is more and more strict, and the fan is also improving constantly, compares in the mode that adopts aircraft nose center single pole to support, and the mode that the ears supported the aircraft nose can make the aircraft nose have bigger turned angle and business turn over wind area, but in traditional ears supported aircraft nose structure, the structural design who controls the every single move and shake the head has the defect, leads to the every single move and shakes the head process ears to support aircraft nose structure atress unreasonable, has the problem such as unsmooth of shaking the head.

Disclosure of Invention

Based on the above, the invention provides the pitching structure capable of shaking smoothly and the blowing device, aiming at overcoming the defect that the shaking is not smooth in the existing blowing device.

The technical scheme is as follows:

the utility model provides a every single move structure, includes aircraft nose, support and every single move driving piece, the support includes first components of a whole that can function independently and the second components of a whole that can function independently that the interval set up, the aircraft nose is located first components of a whole that can function independently with between the second components of a whole that can function independently, the every single move driving piece is used for driving the aircraft nose is relative the support rotates, the focus of aircraft nose is located the aircraft nose is relative on the support pivoted axis of rotation.

Above-mentioned every single move structure, the aircraft nose respectively with first components of a whole that can function independently and second components of a whole that can function independently rotatable coupling, then the aircraft nose bears by first components of a whole that can function independently and second components of a whole that can function independently cooperation, every single move driving piece can drive the relative support rotation of aircraft nose, the every single move angle of adjustment aircraft nose, because the focus of aircraft nose is located the relative support pivoted axis of rotation of aircraft nose, drive aircraft nose every single move and shake the head this moment and need not to overcome the moment of torsion of the relative axis of rotation of the focus of aircraft nose, consequently, the moment of torsion that needs is less, and the moment of torsion between aircraft nose and the support mainly produces by the frictional force of aircraft nose and leg joint, the power of every single move driving piece output can be more smooth drive aircraft nose every single move.

In one embodiment, the pitching driving element is a motor, one of a stator and a rotor of the pitching driving element is connected with the machine head, the other is connected with the first split body or the second split body, and a rotation axis of the rotor is coincident with a rotation axis of the machine head relative to the bracket.

In one embodiment, the pitching structure further includes a first mating member and a second mating member, the first mating member is connected to the handpiece, the second mating member is connected to the first split body, the first mating member is sleeved outside the second mating member, and the pitching driving member is configured to drive the first mating member and the second mating member to rotate relatively.

In one embodiment, the above-mentioned pitching structure further comprises a bearing, the bearing is sleeved outside the second fitting piece, and the bearing is arranged between the first fitting piece and the second fitting piece.

In one embodiment, the first fitting piece is provided with an assembling hole, the second fitting piece is inserted into the assembling hole, a limiting protrusion is arranged in the assembling hole, and the limiting protrusion is used for being abutted against the end face, far away from the first split body, of the bearing.

In one embodiment, the second fitting is externally provided with a first limiting portion and a second limiting portion, and the bearing is arranged between the first limiting portion and the second limiting portion.

In one embodiment, the second limiting portion is a snap spring, the first limiting portion is arranged at one end of the second fitting piece, a clamping groove is formed in the second fitting piece, and the second limiting portion is arranged at the snap spring.

In one embodiment, the pitch driving component is disposed between the first mating component and the handpiece, an output shaft of the pitch driving component is connected with the first mating component, and a rotation axis of the output shaft coincides with a rotation axis of the handpiece relative to the bracket.

In one embodiment, the second fitting part is provided with a transmission hole matched with the output shaft, and part of the hole wall in the transmission hole is a plane.

In one embodiment, the pitching structure further includes a first threaded member, the pitching driving member is provided with a first limiting hole, the first fitting member is provided with a second limiting hole, the machine head is provided with a third limiting hole, and the threaded member sequentially penetrates through the second limiting hole and the first limiting hole and is in threaded fit with the third limiting hole.

In one embodiment, a groove is formed in the machine head, a first protruding column and a second protruding column are arranged in the groove at intervals, the third limiting holes are formed in end faces of the first protruding column and the second protruding column, two extending portions are arranged on two sides of the pitching driving member, the first limiting holes are formed in the extending portions, and a main body of the pitching driving member is arranged between the first protruding column and the second protruding column.

In one embodiment, a first blocking portion is arranged on the first convex column, the first blocking portion surrounds a first arc-shaped groove used for placing the extension portion, an opening of the first arc-shaped groove is arranged towards the direction of the second convex column, a second blocking portion is arranged on the second convex column, the second blocking portion surrounds a second arc-shaped groove used for placing the extension portion, and an opening of the second arc-shaped groove is arranged towards the direction of the first convex column.

In one embodiment, the above-mentioned pitch structure further includes a second threaded element, the first fitting element is provided with a fourth limiting hole, the machine head is provided with a fifth limiting hole, the second threaded element penetrates through the fourth limiting hole and is in threaded fit with the fifth limiting hole, and the second limiting hole and the fourth limiting hole are arranged at intervals along the circumferential direction of the first fitting element.

In one embodiment, a bearing groove is formed in the first sub-body, and one end, far away from the machine head, of the second matching piece extends into the bearing groove and is connected with the first sub-body.

In one embodiment, the first fitting piece is arranged outside the bearing groove, the second fitting piece comprises an extending part extending into the bearing groove, and the extending part is arranged outside the first fitting piece.

In one embodiment, the pitching structure further includes a first fitting member and a second fitting member, the first fitting member is connected to the handpiece, the second fitting member is connected to the first split body, the second fitting member is sleeved outside the first fitting member, and the pitching driving member is configured to drive the first fitting member and the second fitting member to rotate relatively.

A blowing apparatus comprising a pitch structure according to any preceding claim.

Above-mentioned blast apparatus, the aircraft nose respectively with first components of a whole that can function independently and second components of a whole that can function independently rotatable coupling, then the aircraft nose bears by the cooperation of first components of a whole that can function independently and second components of a whole that can function independently, every single move driving piece can drive the relative support rotation of aircraft nose, the every single move angle of adjustment aircraft nose, because the focus of aircraft nose is located the relative support pivoted axis of rotation of aircraft nose, drive aircraft nose every single move this moment and shake the head and need not to overcome the moment of torsion of the relative axis of rotation of the focus of aircraft nose, consequently, the moment of torsion that needs is less, and the moment of torsion between aircraft nose and the support mainly produces by the frictional force of aircraft nose and leg joint, the power of every single move driving piece output can more smooth drive aircraft nose every single move the.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and are not intended to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded view of a pitch structure according to an embodiment of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the first mating member, the second mating member and the bearing after assembly according to the embodiment of the invention;

FIG. 3 is an oblique view of a first mating member according to an embodiment of the present invention;

FIG. 4 is an oblique view of a second mating member according to an embodiment of the present invention;

FIG. 5 is an oblique view of a pitch drive according to an embodiment of the present invention;

FIG. 6 is a schematic view of a portion of a handpiece in accordance with an embodiment of the present invention;

FIG. 7 is an enlarged schematic view at A of FIG. 6;

FIG. 8 is an elevation view of a second mating member according to an embodiment of the present invention;

fig. 9 is a schematic view of a portion of the structure in the direction of a in fig. 1.

Description of reference numerals:

100. the machine head comprises a machine head, 101, a third limiting hole, 102, a groove, 103, a fifth limiting hole, 110, a first convex column, 111, a first blocking part, 120, a second convex column, 121, a second blocking part, 200, a support, 210, a first split body, 211, a bearing groove, 212, a through hole, 220, a second split body, 300, a pitching driving part, 301, a stator, 302, a rotor, 303, a first limiting hole, 310, an extension part, 400, a first matching piece, 401, an assembly hole, 402, a second limiting hole, 403, a fourth limiting hole, 410, a limiting protrusion, 420, a structural flanging, 500, a second matching piece, 501, a clamping groove, 502, a transmission hole, 503, a fixing hole, 510, a first limiting part, 520, a second limiting part, 530, an extending part, 600 and a bearing.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, an embodiment discloses a pitching structure, which includes a machine head 100, a support 200 and a pitching driving element 300, wherein the support 200 includes a first split 210 and a second split 220 which are arranged at intervals, the machine head 100 is arranged between the first split 210 and the second split 220, the machine head 100 is respectively rotatably connected with the first split 210 and the second split 220, the pitching driving element 300 is used for driving the machine head 100 to rotate relative to the support 200, and the center of gravity of the machine head 100 is located on a rotation axis of the machine head 100 rotating relative to the support 200.

Above-mentioned every single move structure, aircraft nose 100 respectively with first components 210 and second components 220 rotatable coupling, then aircraft nose 100 bears by first components 210 and the cooperation of second components 220, every single move driving piece 300 can drive aircraft nose 100 and rotate relative to support 200, adjust the every single move angle of aircraft nose 100, because the focus of aircraft nose 100 is located the axis of rotation that aircraft nose 100 rotates relative to support 200, drive aircraft nose 100 every single move and shake the head this moment and need not to overcome the moment of torsion of the axis of rotation relative to the center of gravity of aircraft nose 100, therefore the moment of torsion that needs is less, and the moment of torsion between aircraft nose 100 and support 200 mainly produces by the frictional force of aircraft nose 100 and support 200 junction, the power that every single move driving piece 300 output can more smooth drive aircraft nose 100 every single move and shake the head, it is easier to the regulation of aircraft nose 100 every single move and shake the head, make the every single move of aircraft nose 100.

The machine head 100 includes an air duct, fan blades and a fan blade motor, the fan blades and the fan blade motor are both disposed in the air duct, the fan blade motor drives the fan blades to rotate, the air duct forms an air duct for air to enter and exit, and specifically, the first split 210 and the second split 220 are respectively rotatably connected with two sides of the air duct.

In one embodiment, as shown in fig. 1, pitch drive 300 is a motor, one of stator 301 and rotor 302 of pitch drive 300 is coupled to handpiece 100, the other is coupled to first segment 210 or second segment 220, and the axis of rotation of rotor 302 coincides with the axis of rotation of handpiece 100 relative to support 200. Because the rotation axis of the rotor 302 coincides with the rotation axis of the head 100 rotating relative to the bracket 200, the torque required for driving the head 100 to swing is small, the load of the pitch driving component 300 can be reduced, a motor with small maximum torque can be used, the cost is reduced, the heating of the pitch driving component 300 can be reduced, and the service life of the pitch driving component 300 can be prolonged.

In one embodiment, as shown in fig. 1 and fig. 2, the above-mentioned pitching structure further includes a first engaging element 400 and a second engaging element 500, the first engaging element 400 is connected with the handpiece 100, the second engaging element 500 is connected with the first sub-body 210, the first engaging element 400 is sleeved outside the second engaging element 500, and the pitching driving element 300 is used for driving the first engaging element 400 and the second engaging element 500 to rotate relatively. First fitting piece 400 cooperates with second fitting piece 500 this moment, and first fitting piece 400 can provide spacing and support to second fitting piece 500, makes the cooperation between aircraft nose 100 and the first components of a whole that can function independently 210 more stable, alleviates simultaneously that every single move driving piece 300 directly receives aircraft nose 100's action of gravity, makes things convenient for every single move driving piece 300 to drive aircraft nose 100 every single move and shakes head.

In other embodiments, the pitch driving element 300 can also be directly connected to the handpiece 100 and the support 200, for example, the stator 301 of the pitch driving element 300 is directly connected to the handpiece 100, the rotor 302 of the pitch driving element 300 is directly connected to the support 200, and the pitch driving element can also drive the pitch head of the handpiece 100 relative to the support 200; or stator 301 of pitch drive 300 is directly connected to bracket 200 and rotor 302 of pitch drive 300 is directly connected to handpiece 100.

In one embodiment, as shown in fig. 1 and fig. 2, the above-mentioned pitching structure further includes a bearing 600, the bearing 600 is sleeved outside the second fitting member 500, and the bearing 600 is disposed between the first fitting member 400 and the second fitting member 500. At this time, the bearing 600 can be used to realize the relative rotation between the first fitting member 400 and the second fitting member 500, and compared with the direct contact between the first fitting member 400 and the second fitting member 500, the bearing 600 can reduce the torque required for overcoming the friction force, further drive the driving head 100 to shake the head, and reduce the direct friction, thereby prolonging the overall service life of the pitching structure.

In one embodiment, as shown in fig. 1 to 3, a mounting hole 401 is provided on the first fitting element 400, the second fitting element 500 is inserted into the mounting hole 401, a limiting protrusion 410 is provided in the mounting hole 401, and the limiting protrusion 410 is used for abutting against an end surface of the bearing 600 away from the first split body 210. Can carry on spacingly through spacing arch 410 to bearing 600, prevent that it from breaking away from pilot hole 401, guarantee bearing 600's lasting effect.

Specifically, the limiting protrusion 410 is disposed on a side of the assembly hole 401 close to the handpiece 100, so that the length of the assembly hole 401 can be shortened on the basis of limiting the bearing 600, the overall size of the first fitting member 400 can be reduced, and the pitching structure can be more compact.

In one embodiment, as shown in fig. 2, the second fitting member 500 is externally provided with a first limiting portion 510 and a second limiting portion 520, and the bearing 600 is disposed between the first limiting portion 510 and the second limiting portion 520. The first position-limiting portion 510 and the second position-limiting portion 520 can limit the position of the bearing 600 together, so as to prevent the bearing 600 from moving relative to the second mating member 500.

In one embodiment, as shown in fig. 1 and 4, the second position-limiting portion 520 is a snap spring, the first position-limiting portion 510 is disposed at an end of the second mating member 500, the second mating member 500 is provided with a slot 501, and the second position-limiting portion 520 is disposed at the snap spring. The circlip can realize the limiting function of the bearing 600, and the circlip can be detached from the second fitting piece 500, so that the bearing 600 can be conveniently mounted and detached.

Optionally, the snap spring is of a ring structure with a notch, the material of the snap spring is an elastic material, and the snap spring can be separated from the snap groove 501 by breaking the snap spring, so that the bearing 600 can be installed or removed.

In other embodiments, the snap spring is disposed outside the mounting hole 401. At this time, the installation and the detachment of the snap spring are both performed outside the second fitting member 500, the operation is more convenient, and the snap spring does not interfere with the second limiting portion 520 in position.

In one embodiment, as shown in fig. 1, the pitching driving element 300 is disposed between the first fitting element 400 and the handpiece 100, and the output shaft of the pitching driving element 300 is connected to the first fitting element 400, and the rotation axis of the output shaft coincides with the rotation axis of the handpiece 100 relative to the support 200. At this time, the pitching driving element 300 directly drives the head 100 to shake the head, and the rotation axis of the output shaft of the pitching driving element 300 coincides with the rotation axis of the head 100 rotating relative to the bracket 200, so that the torque required to be output by the pitching driving element 300 to drive the head 100 to shake the head can be reduced, the load of the pitching driving element 300 can be reduced, the heat generated by the pitching driving element 300 can be reduced, and the service life of the pitching driving element 300 can be prolonged.

Specifically, the output shaft of the pitch drive 300 is the rotor 302 of the pitch drive 300.

In one embodiment, as shown in fig. 4, the second fitting 500 is provided with a transmission hole 502 matching with the output shaft, and a part of the hole wall in the transmission hole 502 is a plane. At the moment, the output shaft and the transmission hole 502 cannot slip when rotating, and the transmission effect is more stable.

The transmission hole 502 has two opposite planes therein, the cross-sectional shape of the output shaft is matched with the cross-sectional shape of the transmission hole 502, and the output shaft and the second mating member 500 are less prone to slipping during transmission.

In one embodiment, as shown in fig. 5 to 8, the pitching structure further includes a first threaded member, the pitching driving member 300 is provided with a first limiting hole 303, the first fitting member 400 is provided with a second limiting hole 402, the machine head 100 is provided with a third limiting hole 101, and the threaded member sequentially penetrates through the second limiting hole 402 and the first limiting hole 303 and is in threaded fit with the third limiting hole 101. The first fitting member 400, the pitch driving member 300 and the head 100 can be fixed by the first screw member, so that the overall structure is more stable, and the first screw member is simultaneously matched with the first fitting member 400, the pitch driving member 300 and the head 100, so that the overall structure can be simplified.

In particular, the first threaded member is a bolt or screw.

In one embodiment, as shown in fig. 5 to 7, a groove 102 is formed on the machine head 100, a first convex pillar 110 and a second convex pillar 120 are spaced in the groove 102, third limiting holes 101 are formed on end surfaces of the first convex pillar 110 and the second convex pillar 120, two outer extensions 310 are formed on two sides of the pitch driving member 300, a first limiting hole 303 is formed on each outer extension 310, and a main body of the pitch driving member 300 is disposed between the first convex pillar 110 and the second convex pillar 120. Through the cooperation of the first convex column 110, the second convex column 120 and the two outer extension portions 310, the relative rotation between the handpiece 100 and the pitching driving element 300 can be prevented, and the handpiece 100 can output better torque to enable the handpiece 100 to pitch and swing the head relative to the bracket 200. And at this time, the main body of the pitching driving element 300 is located in the groove 102 and between the first convex column 110 and the second convex column 120, so that the pitching driving element 300 is more stable after being installed, and the whole appearance surface of the machine head 100 cannot be protruded after the pitching driving element 300 is installed, so that the appearance integrity after being installed is better.

Specifically, the outer side surfaces of the first convex column 110 and the second convex column 120 are provided with reinforcing ribs connected with the groove walls of the groove 102, and the first convex column 110 and the second convex column 120 are used as main bearing parts connected with the bracket 200 and need to bear large force, so that the reinforcing ribs are arranged to protect the first convex column 110 and the second convex column 120 and prevent the first convex column 110 and the second convex column 120 from structural damage.

In one embodiment, as shown in fig. 5 to 7, a first blocking portion 111 is disposed on the first convex pillar 110, the first blocking portion 111 encloses a first arc-shaped groove for placing the extension portion 310, an opening of the first arc-shaped groove is disposed toward the second convex pillar 120, a second blocking portion 121 is disposed on the second convex pillar 120, the second blocking portion 121 encloses a second arc-shaped groove for placing the extension portion 310, and an opening of the second arc-shaped groove is disposed toward the first convex pillar 110. At this moment, the pitching driving element 300 is connected with the first convex column 110 and the second convex column 120, the extension part 310 can be placed into the first arc-shaped groove and the second arc-shaped groove, the extension part 310 is conveniently aligned with the first convex column 110 or the second convex column 120, the first blocking part 111 and the second blocking part 121 can also limit the pitching driving element 300, the displacement of the pitching driving element is prevented, the connection between the pitching driving element 300 and the machine head 100 is more stable, the pitching driving element 300 is favorable for stably driving the machine head 100 to pitch and shake the head, and the noise generated in the shaking process is reduced.

In one embodiment, as shown in fig. 6 to 8, the above-mentioned pitching structure further includes a second threaded element, the first fitting element 400 is provided with a fourth limiting hole 403, the machine head 100 is provided with a fifth limiting hole 103, the second threaded element penetrates through the fourth limiting hole 403 and is in threaded fit with the fifth limiting hole 103, and the second limiting hole 402 and the fourth limiting hole 403 are arranged at intervals along the circumferential direction of the first fitting element 400. Because the connection structure of aircraft nose 100 and first fitting piece 400 needs to bear the weight of aircraft nose 100 self, consequently on setting up the basis that first screw connects, set up the second screw again and be connected first fitting piece 400 and aircraft nose 100 alone, further strengthen being connected between aircraft nose 100 and the first fitting piece 400, improve holistic structural strength, spacing hole 402 of second simultaneously, the spacing hole 403 of fourth sets up along the circumference interval of first fitting piece 400, it is more firm to make first fitting piece 400 be connected with aircraft nose 100, the circumstances such as relative displacement can not appear.

In particular, the second threaded member is a bolt or screw.

Optionally, as shown in fig. 3 and 8, a structural flange 420 is disposed at one end of the first fitting 400 close to the machine head 100, the second limiting hole 402 and the fourth limiting hole 403 are disposed on the structural flange 420, and the second limiting hole 402 and the fourth limiting hole 403 are sequentially disposed at intervals along the circumferential direction of the first fitting 400.

In one embodiment, as shown in fig. 4 and 9, a bearing groove 211 is formed on first split body 210, and an end of second fitting member 500 away from handpiece 100 extends into bearing groove 211 and is connected with first split body 210. At this time, the gravity of the machine head 100 received by the second fitting member 500 is partially applied to the inner wall of the bearing groove 211, so that the force and torque received at the joint of the second fitting member 500 and the first sub-body 210 can be reduced, the structural damage caused by the overlarge stress at the joint of the second fitting member 500 and the first sub-body 210 can be prevented, and the service life of the whole structure can be prolonged.

Specifically, as shown in fig. 4 and 9, a fixing hole 503 is disposed on a side of the second fitting element 500 away from the machine head 100, a through hole 212 is disposed on a bottom wall of the bearing groove 211, and a screw or a bolt can be used to penetrate through the through hole 212 and be in threaded fit with the fixing hole 503, so as to realize connection and fixation of the second fitting element 500 and the first sub-body 210, and at this time, the second fitting element 500 and the first sub-body 210 can be connected from a side of the first sub-body 210 away from the second sub-body 220, which is simpler in operation.

Specifically, be equipped with the guide way on the lateral wall of bearing groove 211, be equipped with on second fitting piece 500 with guide way sliding fit's guide part, owing to need to counter-rotating fixed orifices 503 and perforation 212, consequently need confirm the gesture that second fitting piece 500 stretched into bearing groove 211, utilize the cooperation of guide part and guide way, can confirm the gesture that second fitting piece 500 stretched into bearing groove 211, guarantee that fixed orifices 503 counter-rotating perforation 212, make things convenient for second fitting piece 500 and first components of a whole that can function independently 210 to be connected.

In one embodiment, as shown in fig. 2 and 9, the first fitting member 400 is disposed outside the bearing groove 211, the second fitting member 500 includes an extending portion 530 extending into the bearing groove 211, and the extending portion 530 is disposed outside the first fitting member 400. At this time, the first engaging element 400 is not in contact with the inner wall of the bearing groove 211, so that the friction force caused by the direct contact between the first engaging element 400 and the second engaging element 500 is prevented from increasing, and the torque caused by the friction force can be reduced, thereby reducing the load of the pitch driving element 300.

Specifically, the guiding portion is an elastic member, and the guiding portion can be pressed to be not protruded on the surface of the second fitting member 500, so that the installation of the bearing 600 and the snap spring is not affected.

In one embodiment, the above-mentioned pitching structure further comprises a first engaging element 400 and a second engaging element 500, the first engaging element 400 is connected with the handpiece 100, the second engaging element 500 is connected with the first sub-body 210, the second engaging element 500 is sleeved outside the first engaging element 400, and the pitching driving element 300 is used for driving the first engaging element 400 and the second engaging element 500 to rotate relatively. Outside the first fitting member 400 is sleeved by the second fitting member 500, the pitching driving member 300 can also be used to drive the first fitting member 400 and the second fitting member 500 to rotate relatively, and meanwhile, the second fitting member 500 can limit and support the first fitting member 400.

Specifically, first fitting piece 400, second fitting piece 500 are cylindrical structure, and the central axis of first fitting piece 400, second fitting piece 500 also all coincides with aircraft nose 100 relative support 200 pivoted axis of rotation, only need overcome the moment of torsion that rotates the frictional force production of in-process when making every single move driving piece 300 drive aircraft nose 100 shake the head, and the load of every single move driving piece 300 is less, shakes the head more stably, more smoothly.

Optionally, the rotatable connection between the machine head 100 and the second component 220 may be that a rotating shaft is disposed on the machine head 100, a rotating shaft hole is disposed on the second component 220, and the rotating shaft is sleeved with the bearing 600 and extends into the rotating shaft hole, so as to realize the relative rotation between the second component 220 and the machine head 100. Or the assembly between the machine head 100 and the second sub-body 220 can refer to the assembly between the first sub-body 210 and the machine head 100, for example, a first fitting element 400 and a second fitting element 500 are arranged between the machine head 100 and the second sub-body 220, the first fitting element 400 is connected with the machine head 100, the second fitting element 500 is connected with the second sub-body 220, a pitching driving element 300 can be arranged, and the pitching driving element 300 is cooperated with the matching structure between the first sub-body 210 and the machine head 100 to drive the machine head 100 to shake the head, or the pitching driving element 300 is not arranged, and the machine head 100 is driven to shake the head only by the cooperation between the first sub-body 210.

As shown in fig. 1, an embodiment discloses a blowing device including a pitch structure according to any of the above.

Above-mentioned blast apparatus, aircraft nose 100 respectively with first components of a whole that can function independently 210 and second components of a whole that can function independently 220, then aircraft nose 100 bears by the cooperation of first components of a whole that can function independently 210 and second components of a whole that can function independently 220, every single move driving piece 300 can drive aircraft nose 100 and rotate relative to support 200, adjust the every single move angle of aircraft nose 100, because the focus of aircraft nose 100 is located the axis of rotation that aircraft nose 100 rotates relative to support 200, drive aircraft nose 100 every single move and shake the head this moment and need not to overcome the moment of torsion of the axis of rotation relative to the center of gravity of aircraft nose 100, therefore the moment of torsion that needs is less, and the moment of torsion between aircraft nose 100 and support 200 mainly produces by the frictional force of aircraft nose 100 and support 200 junction, the power that every single move driving piece 300 output can more smoothly drive aircraft nose 100 every single move and shake the head, it is easier.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (17)

1. The utility model provides a every single move structure, its characterized in that includes aircraft nose, support and every single move driving piece, the support includes first components of a whole that can function independently and the second components of a whole that can function independently that the interval set up, the aircraft nose locate first components of a whole that can function independently with between the second components of a whole that can function independently, the aircraft nose respectively with first components of a whole that can function independently second components of a whole that can function independently rotatable coupling, every single move driving piece is used for driving the aircraft nose is relative the support rotates, the focus of aircraft nose is located the aircraft nose is relative on the axis.

2. The pitch structure of claim 1 wherein the pitch drive is a motor, one of a stator and a rotor of the pitch drive is coupled to the handpiece, the other of the stator and the rotor is coupled to the first or second segments, and an axis of rotation of the rotor coincides with an axis of rotation of the handpiece relative to the frame.

3. The pitching structure of claim 1, further comprising a first engaging member and a second engaging member, wherein the first engaging member is connected to the handpiece, the second engaging member is connected to the first split body, the first engaging member is sleeved outside the second engaging member, and the pitching driving member is configured to drive the first engaging member and the second engaging member to rotate relatively.

4. The pitch structure of claim 3 further comprising a bearing, wherein the bearing is sleeved outside the second mating member, and the bearing is disposed between the first mating member and the second mating member.

5. The pitching structure of claim 4, wherein the first mating member is provided with a mounting hole, the second mating member is inserted into the mounting hole, and a limiting protrusion is provided in the mounting hole and is used for abutting against an end face of the bearing away from the first split body.

6. The pitch structure of claim 5, wherein the second mating member is externally provided with a first limiting portion and a second limiting portion, and the bearing is disposed between the first limiting portion and the second limiting portion.

7. The pitching structure of claim 6, wherein the second limiting portion is a snap spring, the first limiting portion is disposed at an end of the second fitting member, the second fitting member is provided with a snap groove, and the second limiting portion is disposed at the snap spring.

8. The pitch structure of any one of claims 3 to 7 wherein said pitch drive is disposed between said first mating member and said handpiece, an output shaft of said pitch drive being connected to said first mating member, an axis of rotation of said output shaft being coincident with an axis of rotation of said handpiece relative to said carrier.

9. The pitch structure of claim 8 wherein the second engagement member has a drive bore that mates with the output shaft, and wherein a portion of the bore wall in the drive bore is planar.

10. The pitch structure of claim 8 further comprising a first threaded member, wherein the pitch driving member is provided with a first limiting hole, the first fitting member is provided with a second limiting hole, the head is provided with a third limiting hole, and the threaded member sequentially penetrates through the second limiting hole, the first limiting hole and is in threaded engagement with the third limiting hole.

11. The pitch structure according to claim 10, wherein a groove is formed in the machine head, a first protruding pillar and a second protruding pillar are spaced in the groove, the third limiting hole is formed in end faces of the first protruding pillar and the second protruding pillar, two extending portions are formed on two sides of the pitch driving member, the first limiting hole is formed in the extending portions, and the main body of the pitch driving member is disposed between the first protruding pillar and the second protruding pillar.

12. The pitch structure according to claim 11, wherein a first blocking portion is provided on the first convex pillar, the first blocking portion defines a first arc-shaped groove for placing the extension portion, an opening of the first arc-shaped groove is provided toward the second convex pillar, a second blocking portion is provided on the second convex pillar, the second blocking portion defines a second arc-shaped groove for placing the extension portion, and an opening of the second arc-shaped groove is provided toward the first convex pillar.

13. The pitch structure of claim 10 further comprising a second threaded member, wherein the first mating member has a fourth position-limiting hole, the head has a fifth position-limiting hole, the second threaded member passes through the fourth position-limiting hole and is in threaded engagement with the fifth position-limiting hole, and the second position-limiting hole and the fourth position-limiting hole are spaced apart from each other along the circumferential direction of the first mating member.

14. The pitch structure of any one of claims 3 to 7 wherein a load bearing channel is provided in the first sub-body and the end of the second mating member remote from the head extends into the load bearing channel and is connected to the first sub-body.

15. The pitch structure of claim 14 wherein said first engagement member is disposed outside of said load bearing channel and said second engagement member includes an extension into said load bearing channel, said extension being disposed outside of said first engagement member.

16. The pitching structure of claim 1, further comprising a first engaging member and a second engaging member, wherein the first engaging member is connected to the handpiece, the second engaging member is connected to the first split body, the second engaging member is sleeved outside the first engaging member, and the pitching driving member is configured to drive the first engaging member and the second engaging member to rotate relatively.

17. A blowing device comprising a pitch structure according to any of claims 1-16.

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