CN212055234U

CN212055234U - Fan pitching mechanism and fan using same

Info

Publication number: CN212055234U
Application number: CN202020549913.XU
Authority: CN
Inventors: 姚国宁; 周腾; 姚洲
Original assignee: Ningbo Singfun Electric Appliance Co Ltd
Current assignee: Ningbo Singfun Electric Appliance Co Ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-12-01
Anticipated expiration: 2030-04-14

Abstract

A fan pitching mechanism comprises a support and a shell, wherein the shell can perform pitching motion relative to the support in the vertical direction, the shell is sleeved at the top of the support, the fan pitching mechanism further comprises a supporting plate, the supporting plate is arranged at the top end of the support, and the shell rotates relative to the supporting plate to realize pitching motion; the brake disc is provided with a plurality of positioning grooves which are distributed along the circumferential direction of the rotating axis; the braking device is characterized by further comprising a braking protrusion, and the braking protrusion is matched with the positioning groove to limit the pitching motion of the shell. The technical scheme of the utility model has following beneficial effect: the space occupation is small, the bus is short, the structural compression functional components are distributed tightly, the moment is moderate, and the pitching angle can be adjusted conveniently.

Description

Fan pitching mechanism and fan using same

Technical Field

The utility model relates to a fan field especially relates to a fan every single move mechanism and use fan of this mechanism.

Background

At present, fan products on the market generally adjust the pitching angle of a machine head in a manual operation mode, however, as the bus of the pitching mechanism is too long and the moment is too large, the phenomenon that braking cannot be performed and the pitching angle is difficult to control is easily caused.

For example, the chinese utility model patent with the granted publication number CN203098339U and the name of an electric fan head assembly adjusting structure discloses a head assembly adjusting structure comprising a head assembly, an adjusting box, an adjusting bracket and a base, wherein a head assembly shaft at the lower end of the head assembly is rotatably inserted into a head assembly shaft hole of the adjusting box, the adjusting box and the head assembly connected with the adjusting box are installed at the upper end of the base in a pitching adjustable manner, the adjusting box is provided with a screw rod through hole for installing the adjusting box on the base through a screw rod and a nut, a concave groove is formed around the screw rod through hole, and a rotating shaft concentric with the screw rod through hole is formed outside the screw rod through hole at the center of the concave groove; the concave cavity groove is provided with a set of torsion spring arranged on the rotating shaft, the adjusting box at the lower edge of the concave cavity groove is provided with a limiting opening for limiting the free end of the torsion spring, the torsion spring is arranged in the concave cavity groove, and the lower end part of the adjusting box is provided with a spring hole. The technical scheme of the utility model has the following disadvantages: in the mechanism subassembly axle of tip inserts the adjusting box under the aircraft nose, the lower tip of adjusting the box is equipped with the spring hole, this kind of structural design leads to the every single move structure to be vertical distribution, the bus overlength, moment is too big, the aircraft nose subassembly overcomes the restriction of adjusting the support easily, in case use the phenomenon of steel ball slippage from the spring hole of adjusting the support very easily, it is difficult to control to cause the every single move angle, and this kind of structural design causes every single move mechanism occupation space too big moreover, be unfavorable for simplifying product structure.

For another example, the chinese utility model entitled pitching structure of bladeless fan and bladeless fan, with the license number CN205478589U, discloses a pitching structure of bladeless fan, comprising a plurality of pitching positioning slots, wherein the plurality of pitching positioning slots are adapted to be arranged on one of the base of the bladeless fan and the bladeless fan head and arranged along the circumferential direction of the pitching rotation axis of the bladeless fan head; the assembling groove is suitable for being arranged on the other one of the base of the bladeless fan and the head of the bladeless fan; pitching positioning beads and elastic pieces are arranged in the assembling groove, and the pitching positioning beads are matched in different pitching positioning grooves under the action of the elastic pieces along with the pitching rotation of the bladeless fan head of the bladeless fan. The technical scheme of the utility model has the following disadvantages: the moment can not be effectively controlled, and the difficulty of controlling the pitching angle is increased.

Finally, the chinese utility model patent with the name of pitch angle adjusting structure of electric fan, with the publication number CN203297125U, discloses: the two sides of the motor fixing frame corresponding to the radial direction are respectively provided with a first rotating shaft socket and a second rotating shaft socket, a first rotating shaft and a second rotating shaft are respectively inserted into the first rotating shaft socket and the second rotating shaft socket, the central axis of the first rotating shaft and the central axis of the second rotating shaft are overlapped, the first rotating shaft and the second rotating shaft are respectively fixedly inserted into two side walls of the U-shaped mounting groove, a radial elastic clamping bead is arranged at a position, located in the first rotating shaft socket, on the first rotating shaft, and can protrude or retract into the shaft surface of the first rotating shaft, and a torsion spring is sleeved on the second rotating shaft. Technical scheme has following not enough: the inner clamping gear ring is matched with the elastic clamping beads, the pitching angle adjusting torque is excessively small inevitably due to the structural design, and the torsion spring structures are symmetrically distributed on the opposite sides, so that the torque of the torsion spring is not large, and the pitching angle is adjusted too hard.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a space occupies that volume is little, the bus is short, structure compression functional unit distributes closely, moment is moderate is convenient for adjust pitch angle's fan every single move mechanism to and use the fan of this mechanism.

The utility model discloses mainly adopt following technical scheme:

a fan pitching mechanism comprises a support and a shell, wherein the shell can perform pitching motion relative to the support in the vertical direction, the shell is sleeved at the top of the support, the fan pitching mechanism further comprises a supporting plate, the supporting plate is arranged at the top end of the support, and the shell rotates relative to the supporting plate to realize pitching motion; the brake disc is provided with a plurality of positioning grooves which are distributed along the circumferential direction of the rotating axis; the braking device is characterized by further comprising a braking protrusion, and the braking protrusion is matched with the positioning groove to limit the pitching motion of the shell.

The supporting disc is arranged on the shell, the shell is connected with the upper end cover in a rotating mode through a rotating shaft, and the upper end cover is arranged on the supporting disc in a buckling mode.

The upper end cover comprises a left end and a right end, the left end and/or the right end are/is provided with a rotating shaft hole, and the rotating shaft penetrates through the rotating shaft hole.

The rotating shaft hole extends outwards along the rotating axis and is provided with a rotating shaft sleeve, and the rotating shaft penetrates through the rotating shaft sleeve.

The left side end and/or the right side end of the upper end cover are/is also provided with an installation sleeve, and the braking protrusions are arranged in the installation sleeve.

The peripheral cover of pivot is equipped with the torsional spring, the one end of torsional spring is fixed on the installation cover, the other end of torsional spring is fixed on the casing.

Wherein, the braking convex comprises an elastic piece and a ball arranged at the top end of the elastic piece.

Wherein, still be provided with the through hole on the brake disc, the pivot passes the through hole.

Wherein the brake block is connected with the casing.

A fan adopts the fan pitching mechanism.

Wherein, still include the fan mechanism of shaking the head, the fan mechanism of shaking the head includes the supporting disk, the supporting disk pass through the bearing with the top of support is rotated and is connected.

Wherein, the fan mechanism of shaking head is still including setting up moving gear in the supporting disk, moving gear and fixed gear intermeshing, fixed gear sets up the top of support, thereby moving gear can wind fixed gear revolution drives the supporting disk is followed support circumferential direction rotates in order to realize the action of shaking the head.

The fixed gear is provided with a central hole, and a lead penetrating through the cavity of the bracket penetrates out of the central hole and extends into the shell.

The circuit board is arranged on the top of the shell, and the conducting wires are connected to the circuit board.

According to the technical scheme, following beneficial effect has: the shell is sleeved on the top of the bracket, so that the space of the pitching mechanism can be compressed, and the shell plays an active role in reducing the whole volume of the handpiece assembly; the shell rotates relative to the supporting plate, so that the vertical distribution mode of the pitching mechanism is effectively changed into the transverse distribution mode, on one hand, the moment is adjusted to facilitate pitching action, on the other hand, the whole volume of the pitching mechanism is also compressed, and an active effect is achieved on a simplified machine head assembly; the upper end cover is used for realizing the rotary connection with the shell, and structures such as a rotating shaft and the like are arranged at the left side end and/or the right side end of the upper end cover, so that components for realizing pitching action are moved outwards, the flattening of a pitching mechanism is facilitated, the upper end cover not only provides support for the components such as the rotating shaft and the like, but also can be provided with a driving motor, the functions of the driving motor are intensively processed, and the structural design is more reasonable; the arrangement of the rotating shaft sleeve has a limiting effect on the rotating shaft, prevents the rotating shaft from loosening to influence the smoothness of pitching motion, can reduce the influence of a torsion spring on the rotating shaft and improves the stability of the rotating shaft; the installation sleeve provides an installation position for the braking protrusion on one hand, and also provides a fixed point for the torsion spring on the other hand, so that the design is more intensive; through set up moving gear and cooperate with the fixed gear in the supporting disk and realize that the supporting disk accomplishes the action of shaking the head for the circumferential motion of support, compact structure is reasonable, the space occupies little.

Drawings

Fig. 1 is an overall schematic view of a fan pitch mechanism.

Fig. 2 is an exploded view of a portion of the fan pitch mechanism.

Fig. 3 is a schematic structural view of the upper end cap.

Fig. 4 is a schematic cross-sectional view of a fan pitch mechanism.

The device comprises a support 1, a machine shell 2, an opening 20, a support plate 3, a brake pad 4, a positioning groove 40, a through hole 400, a brake boss 5, an upper end cover 6, an installation sleeve 61, a rotating shaft sleeve 601, a rotating shaft 7, a torsion spring 8, a bearing 9, a moving gear 101, a fixed gear 102 and a central hole 1020.

Detailed Description

The invention will be further elucidated with reference to the accompanying drawings:

referring to fig. 1-3, a fan pitching mechanism comprises a support 1 and a casing 2, wherein the casing 2 can perform pitching motion relative to the support 1 in the vertical direction, the casing 2 is sleeved on the top of the support 1, the fan pitching mechanism further comprises a support plate 3, the support plate 3 is arranged at the top end of the support 1, and the casing 2 rotates relative to the support plate 3 to perform pitching motion; the brake block 4 is provided with a plurality of positioning grooves 40 which are distributed along the circumferential direction of the rotation axis; the pitching mechanism further comprises a braking protrusion 5, and the braking protrusion 5 is matched with the positioning groove 40 to limit pitching motion of the machine shell 2. Preferably, an opening 20 is provided in the housing 2 to facilitate movement of the housing 2 relative to the stand 1 to effect a pitching motion. The shell is sleeved on the top of the bracket, so that the space of the pitching mechanism can be compressed, and the shell plays an active role in reducing the whole volume of the handpiece assembly; the casing rotates for the supporting disk, changes the vertical distribution mode of every single move mechanism into the horizontal distribution mode effectively, has carried out the adjustment to moment on the one hand and is convenient for realize the pitching action, and on the other hand has also compressed the whole volume of every single move mechanism, plays the positive role to the simplification aircraft nose subassembly.

Referring to fig. 2-3, the portable electronic device further comprises an upper end cover 6, wherein the upper end cover 6 is buckled on the supporting plate 3, and the casing 2 is rotatably connected with the upper end cover 6 through a rotating shaft 7.

Referring to fig. 2-3, the upper end cover 6 includes a left side end and a right side end, the left side end and/or the right side end is provided with a rotating shaft hole, and the rotating shaft 7 is inserted into the rotating shaft hole. The components of pitching action are moved outwards through the structural design, flattening of the pitching mechanism is facilitated, the upper end cover not only provides support for the rotating shaft and other components, the driving motor can be installed on the top surface of the upper end cover, intensive treatment is achieved under the action of the upper end cover, and the structural design is more reasonable. In other embodiments, the shaft may be integrally formed with the upper end cap, as materials and costs permit.

Referring to fig. 2-3, a rotating shaft sleeve 601 is disposed at the rotating shaft hole and extends outward along the rotating axis, and the rotating shaft 7 penetrates through the rotating shaft sleeve 601. Preferably, when the left side end and the right side end are respectively provided with the rotating shafts 7, the axes of the rotating shafts 7 coincide. The rotating shaft sleeve is arranged at the rotating shaft hole to ensure the stability of the rotating shaft and prevent the rotating shaft from loosening to influence the fluency of pitching motion.

Referring to fig. 2-3, the left side end and/or the right side end of the upper end cap 6 is further provided with a mounting sleeve 61, and the braking protrusions 5 are disposed in the mounting sleeve 61.

Referring to fig. 2, a torsion spring 8 is sleeved on the periphery of the rotating shaft 7, one end of the torsion spring 8 is fixed on the mounting sleeve 61, and the other end of the torsion spring 8 is fixed on the casing 2. Preferably, when the rotating shaft sleeve 601 is arranged at the rotating shaft hole, the torsion spring 8 is sleeved outside the rotating shaft sleeve 601 to reduce friction on the rotating shaft 7, and the stability of the rotating shaft 7 is ensured. The torsion spring can reduce the moment, and prevent that the too big braking that leads to of the loaded weight of casing from malfunctioning.

Referring to fig. 2, the braking projection 5 includes an elastic member and a ball provided at a tip end of the elastic member. Preferably, the elastic member may be a spring, may be a leaf spring, or the like.

Referring to fig. 2, the brake pad 4 is further provided with a through hole 400, and the rotating shaft 7 passes through the through hole 400. Preferably, the rotating shaft 7 is a screw rod, and the screw rod is matched and locked with a nut to prevent the casing from falling off. More preferably, in order to save space and improve the overall aesthetic degree of the product, a screw and a nut are replaced by a locking screw.

Referring to fig. 1, the brake plate 4 is connected to the housing 2. Preferably, the casing 2 is provided with a hollow structure matched with the brake piece 4, and the edge of the brake piece 4 is clamped with the casing 2.

A fan adopts the fan pitching mechanism.

Referring to fig. 4, the fan oscillating mechanism is further included, the fan oscillating mechanism includes a supporting plate 3, and the supporting plate 3 is rotatably connected with the top end of the support 1 through a bearing 9. Preferably, bearing 9 cover is established on the top of support, is provided with the through-hole on the supporting disk 3, and bearing 9 packs into in the through-hole together with support 1, more preferably, for guaranteeing the stability of supporting disk 3, can set up the turn-ups that inwards extends and take on the bearing at through-hole upper end edge.

Referring to fig. 4, the oscillating mechanism of the fan further includes a moving gear 101 disposed in the supporting plate 3, the moving gear 101 is engaged with a fixed gear 102, the fixed gear 102 is disposed above the top end of the bracket 1, and the moving gear 101 can revolve around the fixed gear 102 to drive the supporting plate 3 to rotate along the circumferential direction of the bracket 1 to realize an oscillating motion. Preferably, the fixed gear 102 is arranged coaxially with the carrier 1. Preferably, the moving gear 101 is driven by a driving motor mounted on the top surface of the upper end cap 6, and more preferably, a motor shaft hole is provided on the upper end cap 6 so that a motor shaft is connected to the moving gear 101. Preferably, the fixed gear 102 has a tooth gap, and the stroke of the moving gear 101 relative to the fixed gear 102 can be limited so as to limit the oscillation angle.

Referring to fig. 4, the fixed gear 102 is provided with a central hole 1020, and the lead wire inserted into the cavity of the bracket 1 passes through the central hole 1020 and extends into the housing 2. Preferably, the upper end cover 6 is provided with a wire passing hole for allowing a wire to pass through the central hole 1020 and then to extend into the housing 2.

Referring to fig. 1-2 and 4, the portable electronic device further comprises a circuit board, wherein the circuit board is arranged on the top of the casing 2, and leads are connected to the circuit board. Preferably, the circuit board supplies power to the driving motor after the lead is connected to the circuit board. This kind of structural design effectively utilizes the space, no longer makes the circuit board occupy the space of every single move mechanism, and this kind of structural design is convenient for carry out every single move moreover, the action of shaking the head, and can not pull and damage the wire.

While particular embodiments of the present invention have been described, modifications thereof can be made by one skilled in the art without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fan pitch mechanism comprising a support and a housing, the housing being capable of pitching relative to the support in a vertical direction, the fan pitch mechanism comprising: the shell is sleeved at the top of the support and further comprises a supporting plate, the supporting plate is arranged at the top end of the support, and the shell rotates relative to the supporting plate to realize pitching motion; the brake disc is provided with a plurality of positioning grooves which are distributed along the circumferential direction of the rotating axis; the braking device is characterized by further comprising a braking protrusion, and the braking protrusion is matched with the positioning groove to limit the pitching motion of the shell.

2. The fan pitch mechanism of claim 1, wherein: the upper end cover is buckled on the supporting disc, and the shell is rotatably connected with the upper end cover through a rotating shaft.

3. The fan pitch mechanism of claim 2, wherein: the upper end cover comprises a left side end and a right side end, the left side end and/or the right side end are/is provided with a rotating shaft hole, and the rotating shaft penetrates through the rotating shaft hole.

4. The fan pitch mechanism of claim 3, wherein: the rotating shaft hole extends outwards along the rotating axis and is provided with a rotating shaft sleeve, and the rotating shaft penetrates through the rotating shaft sleeve.

5. The fan pitch mechanism of claim 3 or 4, wherein: the left side end and/or the right side end of the upper end cover are/is also provided with an installation sleeve, and the braking protrusions are arranged in the installation sleeve.

6. The fan pitch mechanism of claim 5, wherein: the peripheral cover of pivot is equipped with the torsional spring, the one end of torsional spring is fixed on the installation cover, the other end of torsional spring is fixed on the casing.

7. The fan pitch mechanism of claim 1, wherein: the braking convex comprises an elastic piece and a ball arranged at the top end of the elastic piece.

8. The fan pitch mechanism of claim 2, wherein: the brake disc is further provided with a through hole, and the rotating shaft penetrates through the through hole.

9. A fan pitch mechanism according to any of claims 1-4, 6-8, wherein: the brake block is connected with the casing.

10. A fan, characterized by: use of a fan pitch mechanism as claimed in any of claims 1 to 9.

11. The fan as claimed in claim 10, wherein: still include the fan mechanism of shaking the head, the fan mechanism of shaking the head includes the supporting disk, the supporting disk pass through the bearing with the top of support is rotated and is connected.

12. The fan as claimed in claim 11, wherein: the fan mechanism of shaking head is still including setting up moving gear in the supporting disk, moving gear and fixed gear intermeshing, fixed gear sets up the top of support, thereby moving gear can wind fixed gear revolution drives the supporting disk is followed support circumferential direction rotates in order to realize the action of shaking the head.

13. The fan as claimed in claim 12, wherein: the fixed gear is provided with a center hole, and a lead penetrating through the cavity of the bracket penetrates out of the center hole and extends into the shell.

14. The fan as claimed in claim 13, wherein: the circuit board is arranged on the top of the shell, and the conducting wires are connected to the circuit board.