CN211174725U - Fan pitch angle adjusting structure - Google Patents

Fan pitch angle adjusting structure Download PDF

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Publication number
CN211174725U
CN211174725U CN201921599173.4U CN201921599173U CN211174725U CN 211174725 U CN211174725 U CN 211174725U CN 201921599173 U CN201921599173 U CN 201921599173U CN 211174725 U CN211174725 U CN 211174725U
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CN
China
Prior art keywords
fan
rotating sleeve
support
fan main
pitch angle
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Active
Application number
CN201921599173.4U
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Chinese (zh)
Inventor
霍通恩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO CETUS ELECTRIC APPLIANCE Co.,Ltd.
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霍通恩
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Priority to CN201921599173.4U priority Critical patent/CN211174725U/en
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Publication of CN211174725U publication Critical patent/CN211174725U/en
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Abstract

The utility model discloses a fan pitch angle adjusting structure, which comprises a bracket and a fan main body rotationally arranged on the bracket, wherein the bracket is provided with a rotating sleeve, the side wall of the fan main body is provided with a rotating shaft, and a bearing is arranged between the rotating shaft and the rotating sleeve; be provided with accommodate motor in the fan main part, be provided with drive assembly on the accommodate motor, drive assembly orders about the fan main part and uses the rotation axis to rotate as the relative support of rotation center. The utility model has the advantages of it is following and effect: the gear transmission assembly is adopted to drive the fan main body to rotate relative to the bracket, so that the head raising and lowering processes are realized; the bearing is adopted, so that the abrasion is small during rotation, the rotation is smoother, and the service life is longer; the maximum pitching angle of the fan main body is controlled by the limiting matching of the limiting column and the limiting hole; the bearing is adopted to abut against the step, so that the bearing can be prevented from moving.

Description

Fan pitch angle adjusting structure
Technical Field
The utility model relates to a fan technical field, in particular to fan angle of pitch regulation structure.
Background
As is well known, in order to adjust the blowing angle of an electric fan, a fan head and a base of the electric fan, a structure capable of adjusting the blowing angle of the fan horizontally or vertically is usually disposed between the fan head and the base of the electric fan in the conventional electric fans, such as a desk fan, a wall-mounted fan, and a floor fan.
The prior Chinese patent with publication number CN109717167A discloses a desk type circulating air mosquito killing fan, which comprises a mounting frame, a fan main machine pitching angle adjusting mechanism, an air supply mechanism and a mosquito killing mechanism, wherein the fan main machine is mounted on the mounting frame, rotating shaft holes on two sides of the fan main machine are respectively in clamping fit with a first rotating shaft through clamping rings, and clamping columns and a second rotating shaft are in threaded connection, so that the fan main machine is fixedly connected with the first rotating shaft and the second rotating shaft, and then the fan main machine is rotatably mounted on a right supporting rod and a left supporting rod through the first rotating shaft and the second rotating shaft, so that the air supply angle of the fan main machine can be adjusted; fan host computer every single move angle adjustment mechanism includes angle locating component, and angle locating component includes angle ware, spring housing, spring, and angle ware fixed mounting is provided with the block hole that one row of equidistance was arranged in the left-hand shaft hole on the angle ware, installs the block head with this block hole joint on the spring housing slidable, and spring housing fixed mounting is in the second pivot, and the spring housing is established on the block head and respectively with spring housing and block head butt. When the rotary driving device drives the fan main machine to rotate, the clamping head overcomes the resilience force of the spring and moves towards the direction of the spring sleeve, so that the clamping head is separated from the clamping hole in the angle device, and the angle positioning component cannot hinder the work of the angle adjusting component; when the rotation driving device does not work, the clamping head is clamped on the angle device under the action of the resilience force of the spring, so that the angle of the fan main machine cannot be adjusted under the action of no external force.
However, the mosquito eradication fan has the following disadvantages: because the positioning is realized through the matching of the clamping head and the clamping hole in the angle adjusting process, the positioning angle is fixed along with the arrangement of the clamping hole, and the positioning at any angle cannot be realized; in addition, in the long-term pitch angle adjusting process, the rotating parts of the fan main machine, the first rotating shaft and the second rotating shaft are easy to wear, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fan pitch angle regulation structure adopts the relative support of gear drive assembly drive fan main part to rotate, and sets up the mode of bearing between fan main part and support, has that pitch angle can adjust wantonly, wearing and tearing are less, life is longer effect.
The above technical purpose of the present invention can be achieved by the following technical solutions: a fan pitch angle adjusting structure comprises a support and a fan main body rotatably arranged on the support, wherein a rotating sleeve is arranged on the support, a rotating shaft is arranged on the side wall of the fan main body, a bearing is arranged between the rotating shaft and the rotating sleeve, the inner wall of the bearing is fixedly connected with the rotating shaft, and the outer wall of the bearing is fixedly connected with the rotating sleeve; be provided with accommodate motor in the fan main part, be provided with drive assembly on the accommodate motor, drive assembly orders about the fan main part and uses the rotation axis to rotate as the relative support of rotation center.
By adopting the technical scheme, when the pitch angle of the fan main body is adjusted, the adjusting motor is started, and the fan main body is driven to rotate in the vertical direction by taking the rotating shaft as a rotating center under the transmission action of the transmission assembly, so that the pitch angle of the fan main body is adjusted, and in the process that the fan main body rotates relative to the bracket, because the rotating shaft and the rotating sleeve rotate relatively through the bearing, the abrasion between the rotating shaft and the rotating sleeve is small and the rotation is smoother in the adjusting process, so that the service life can be prolonged; in addition, the adjusting motor can control the pitching angle of the fan main body through the transmission assembly, so that the head raising and head lowering processes are realized.
The utility model discloses a further set up to: the transmission assembly is set to be a gear transmission assembly, the gear transmission assembly comprises a driving gear and a driven gear which are meshed with each other, the driving gear is fixedly connected to an output shaft of the adjusting motor, and the driven gear is fixedly connected to the rotating sleeve.
Through adopting above-mentioned technical scheme, when adjusting motor's output shaft was rotatory, drive gear and rotate, under drive gear and driven gear's meshing effect, make driven gear rotate along with drive gear to drive and rotate the relative rotation axis rotation of cover, make the relative support of fan main part rotate.
The utility model discloses a further set up to: the driven gear is arranged as a sector gear.
The utility model discloses a further set up to: the lateral wall of fan main part is provided with the fixed disk, and the fixed disk sets up with the rotation axis is coaxial, is provided with spacing post on the fixed disk, rotates to sheathe in and has seted up convex spacing hole, spacing post and the spacing cooperation in tip in spacing hole, when rotating the relative rotation axis rotation of cover, spacing post slides along spacing hole.
By adopting the technical scheme, when the rotating sleeve rotates relative to the rotating shaft, the limiting column slides along the arc-shaped limiting hole, and the two ends of the limiting hole respectively correspond to the maximum angle of pitching of the fan main body.
The utility model discloses a further set up to: the outer wall of the rotating sleeve is symmetrically provided with two arc-shaped positioning blocks, and the bracket is provided with positioning grooves matched with the arc-shaped positioning blocks in a positioning manner.
Through adopting above-mentioned technical scheme, when rotating the cover and installing on the support, can inlay the arc locating piece in the constant head tank location.
The utility model discloses a further set up to: three mounting holes are formed in the support, three bolt holes are correspondingly formed in the rotating sleeve, and the rotating sleeve is fixedly connected to the support through bolts.
The utility model discloses a further set up to: the inner wall of the rotating sleeve is provided with a step, and when the rotating sleeve is sleeved on the rotating shaft, the end surface of the bearing is abutted against the step.
By adopting the technical scheme, the end face of the bearing is abutted against the step, so that the bearing can be prevented from axially moving along the rotating shaft to a certain extent.
The utility model discloses a further set up to: the support is wholly U-shaped, the rotating sleeves are fixedly arranged at two ends of the support, and the bottom of the support is also provided with a base.
Through adopting above-mentioned technical scheme, the fan main part both sides correspond rotation under the cooperation of rotating sleeve and rotation axis and connect in the both ends of support, have higher stability in the accommodation process.
To sum up, the utility model discloses following beneficial effect has:
1. in addition, the rotating sleeve and the rotating shaft are rotatably connected through the bearing, so that the rotating sleeve and the rotating shaft have the effects of less abrasion and smoothness in rotation when rotating relatively, and the service life can be prolonged;
2. the limiting column is in limiting fit with the arc-shaped limiting hole, and two ends of the limiting hole can respectively correspond to the maximum pitching angle of the fan main body;
3. the bearing is abutted against the step, so that the bearing can be prevented from moving to a certain degree.
Drawings
Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.
Fig. 2 is a schematic structural relationship diagram of the bracket of the embodiment in a separated state from the fan main body, in which the fan casing is not shown.
Fig. 3 is a schematic structural relationship diagram of the bracket, the rotating sleeve and the fan main body of the embodiment in a separated state, wherein the fan casing is not shown.
In the figure: 1. a support; 11. a base; 12. positioning a groove; 13. mounting holes; 2. a fan main body; 21. a drive section; 211. a housing; 22. a fan housing; 3. rotating the sleeve; 31. an arc-shaped positioning block; 32. bolt holes; 33. a limiting hole; 34. a step; 35. a driven gear; 4. a rotating shaft; 5. fixing the disc; 51. a limiting column; 6. a bearing; 7. adjusting the motor; 71. the gears are driven.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A fan pitch angle adjusting structure is shown in figures 1 and 2 and comprises a support 1 which is integrally U-shaped, a base 11 is arranged at the bottom of the support 1, a fan main body 2 is rotatably arranged at two ends of the support 1, the fan main body 2 comprises a driving portion 21 and a fan housing 22 arranged at the front end of the driving portion 21, and a shell 211 is arranged outside the driving portion 21.
As shown in fig. 2 and 3, the two ends of the support 1 are both provided with the rotating sleeves 3, the outer wall of each rotating sleeve 3 is symmetrically provided with two arc-shaped positioning blocks 31, positioning grooves 12 matched with the arc-shaped positioning blocks 31 in a positioning manner are respectively formed in the two ends of the support 1, three mounting holes 13 are respectively formed in each end of the support 1, three bolt holes 32 are correspondingly formed in the rotating sleeves 3, the rotating sleeves 3 are fixedly connected to the support 1 through bolts, and two arc-shaped limiting holes 33 are symmetrically formed in the rotating sleeves 3. The rotating shaft 4 and the fixed disc 5 are symmetrically arranged on two side walls of the shell 211, the fixed disc 5 and the rotating shaft 4 are coaxially arranged, two symmetrical limiting columns 51 are arranged on the fixed disc 5, the limiting columns 51 are in limiting fit with the end parts of the limiting holes 33, and when the rotating sleeve 3 rotates relative to the rotating shaft 4, the limiting columns 51 slide along the limiting holes 33; a bearing 6 is arranged on the rotating shaft 4, the inner wall of the bearing 6 is fixedly connected with the outer wall of the rotating shaft 4, the outer wall of the bearing 6 is fixedly connected with the inner wall of the rotating sleeve 3, and the rotating shaft 4 is rotatably connected with the rotating sleeve 3 through the bearing 6; the inner wall of the rotating sleeve 3 is provided with a step 34, when the rotating sleeve 3 is sleeved on the rotating shaft 4, the end surface of the bearing 6 is abutted against the step 34, and the bearing 6 can be prevented from moving along the axial direction of the rotating shaft 4 to a certain extent.
When rotating cover 3 and installing on support 1, can inlay arc locating piece 31 earlier in constant head tank 12 and fix a position, make mounting hole 13 and bolt hole 32 align, then screw up the bolt, so, when the installation quick, convenient, difficult relative displacement's phenomenon appears in the bolt screwing in-process.
As shown in fig. 3, the driving portion 21 includes an adjusting motor 7, the adjusting motor 7 is fixedly connected to the housing 211, an output shaft of the adjusting motor 7 is fixedly connected to a driving gear 71, a driven gear 35 is fixedly connected to the rotating sleeve 3 on one side, the driven gear 35 is engaged with the driving gear 71, and in this embodiment, the driven gear 35 is a sector gear.
The utility model discloses a basic operating principle does: when the pitch angle of the fan main body 2 needs to be adjusted, the adjusting motor 7 is started, the output shaft of the adjusting motor 7 rotates to drive the driving gear 71 to rotate, the driven gear 35 rotates along with the driving gear 71 under the meshing action of the driving gear 71 and the driven gear 35, so that the rotating sleeve 3 is driven to rotate relative to the rotating shaft 4, and the fan main body 2 rotates in the vertical direction by taking the rotating shaft 4 as a rotating center, so that the pitch angle of the fan main body 2 is adjusted. When the rotating sleeve 3 rotates relative to the rotating shaft 4, the limiting post 51 slides along the circular arc-shaped limiting hole 33, and two ends of the limiting hole 33 respectively correspond to the maximum pitch angle of the control fan main body 2. In the process that the fan main body 2 rotates relative to the bracket 1, as the rotating shaft 4 and the rotating sleeve 3 rotate relatively through the bearing 6, the abrasion between the rotating shaft 4 and the rotating sleeve 3 is small and the rotation is smoother in the adjusting process, so that the service life can be prolonged; in addition, the adjusting motor 7 can control the pitch angle of the fan main body 2 through a gear transmission assembly, so that the processes of raising and lowering the head are realized. Both sides of the fan main body 2 are supported by both ends of the support 1, and the stability is high during adjustment.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims (8)

1. The utility model provides a fan pitch angle regulation structure, includes support (1) and rotate set up in fan main part (2) on support (1), its characterized in that: a rotating sleeve (3) is arranged on the support (1), a rotating shaft (4) is arranged on the side wall of the fan main body (2), a bearing (6) is arranged between the rotating shaft (4) and the rotating sleeve (3), the inner wall of the bearing (6) is fixedly connected with the rotating shaft (4), and the outer wall of the bearing (6) is fixedly connected with the rotating sleeve (3); be provided with adjusting motor (7) in fan main part (2), be provided with drive assembly on adjusting motor (7), drive assembly orders about fan main part (2) use rotation axis (4) are relative for rotation support (1).
2. A fan pitch angle adjusting structure as set forth in claim 1, wherein: the transmission assembly is set to be a gear transmission assembly, the gear transmission assembly comprises a driving gear (71) and a driven gear (35) which are meshed with each other, the driving gear (71) is fixedly connected to an output shaft of the adjusting motor (7), and the driven gear (35) is fixedly connected to the rotating sleeve (3).
3. A fan pitch angle adjusting structure as set forth in claim 2, wherein: the driven gear (35) is provided as a sector gear.
4. A fan pitch angle adjusting structure as set forth in claim 1, wherein: the lateral wall of fan main part (2) is provided with fixed disk (5), fixed disk (5) with rotation axis (4) coaxial setting, be provided with spacing post (51) on fixed disk (5), the spacing hole (33) of convex have been seted up on rotating sleeve (3), spacing post (51) with the spacing cooperation of tip in spacing hole (33), work as rotating sleeve (3) relatively when rotation axis (4) rotate, spacing post (51) are followed spacing hole (33) slide.
5. A fan pitch angle adjusting structure as set forth in claim 1, wherein: the outer wall of the rotating sleeve (3) is symmetrically provided with two arc-shaped positioning blocks (31), and the bracket (1) is provided with positioning grooves (12) which are matched with the arc-shaped positioning blocks (31) in a positioning manner.
6. A fan pitch angle adjusting structure as set forth in claim 1, wherein: three mounting holes (13) are formed in the support (1), three bolt holes (32) are correspondingly formed in the rotating sleeve (3), and the rotating sleeve (3) is fixedly connected to the support (1) through bolts.
7. A fan pitch angle adjusting structure as set forth in claim 1, wherein: the inner wall of the rotating sleeve (3) is provided with a step (34), and when the rotating sleeve (3) is sleeved on the rotating shaft (4), the end face of the bearing (6) is abutted to the step (34).
8. A fan pitch angle adjusting structure as set forth in claim 1, wherein: the support (1) is integrally U-shaped, the rotating sleeve (3) is fixedly arranged at two ends of the support (1), and a base (11) is further arranged at the bottom of the support (1).
CN201921599173.4U 2019-09-25 2019-09-25 Fan pitch angle adjusting structure Active CN211174725U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921599173.4U CN211174725U (en) 2019-09-25 2019-09-25 Fan pitch angle adjusting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921599173.4U CN211174725U (en) 2019-09-25 2019-09-25 Fan pitch angle adjusting structure

Publications (1)

Publication Number Publication Date
CN211174725U true CN211174725U (en) 2020-08-04

Family

ID=71826066

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921599173.4U Active CN211174725U (en) 2019-09-25 2019-09-25 Fan pitch angle adjusting structure

Country Status (1)

Country Link
CN (1) CN211174725U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200724

Address after: 315332, Zhejiang, Ningbo province Cixi Town Industrial Development Zone

Patentee after: NINGBO CETUS ELECTRIC APPLIANCE Co.,Ltd.

Address before: 315332, Zhejiang, Ningbo province Cixi Town Industrial Development Zone

Patentee before: Huo Tongen