CN115306751A - Rotating mechanism and electric fan with same - Google Patents

Rotating mechanism and electric fan with same Download PDF

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Publication number
CN115306751A
CN115306751A CN202211005213.4A CN202211005213A CN115306751A CN 115306751 A CN115306751 A CN 115306751A CN 202211005213 A CN202211005213 A CN 202211005213A CN 115306751 A CN115306751 A CN 115306751A
Authority
CN
China
Prior art keywords
gear
driving device
base
tooth
rack
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211005213.4A
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Chinese (zh)
Inventor
刘艳丽
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.)
Shunde Kingtec Appliances Co ltd
Original Assignee
Shunde Kingtec Appliances Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shunde Kingtec Appliances Co ltd filed Critical Shunde Kingtec Appliances Co ltd
Priority to CN202211005213.4A priority Critical patent/CN115306751A/en
Publication of CN115306751A publication Critical patent/CN115306751A/en
Priority to JP2023019054A priority patent/JP2024029738A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps

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

Abstract

The invention discloses a rotating mechanism which comprises a driving device, a transmission piece connected with the movable end of the driving device, a first tooth piece rotationally connected to the transmission piece and a second tooth piece meshed with the first tooth piece. In addition, the invention also provides an electric fan which comprises a base, a fan main body and the rotating mechanism arranged between the base and the fan main body. According to the electric fan, after the driving part is driven by the driving device to rotate towards one direction, the forward and reverse rotation of the fan main body relative to the base can be realized through the meshing between the first tooth part and the second tooth part, the structure is simple, the control requirement on the driving device is low, the driving device is not required to perform forward and reverse rotation, and the operation is convenient.

Description

Rotary mechanism and electric fan with same
Technical Field
The invention relates to the technical field of household appliances, in particular to a rotating mechanism and an electric fan with the same.
Background
At present, most rotary electric fans in the market need to be driven to rotate by the reverse rotation of a motor after rotating for a certain angle along the clockwise direction. However, frequent positive and negative rotation of the motor will affect the service life of the motor, thereby reducing the reliability. In addition, the rotating mode has higher requirement on the control precision of the motor and is troublesome.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the rotating mechanism and the electric fan with the rotating mechanism, wherein the driving device in the rotating mechanism only needs to drive the transmission piece to rotate along one direction, so that the forward and reverse rotation of the fan main body relative to the base can be realized, the structure is simple, the forward and reverse rotation is not needed to be carried out by the driving device, and the operation is convenient.
The technical scheme adopted by the invention for solving the problems is as follows:
a rotary mechanism comprises a driving device, a transmission piece connected with the movable end of the driving device, a first tooth piece rotationally connected to the transmission piece and a second tooth piece meshed with the first tooth piece;
when the driving device is in a free state and the second tooth part is in a fixed state, the driving device drives the transmission part to rotate, then the first tooth part can be driven to rotate, and the driving device is driven to rotate in the forward and reverse directions relative to the second tooth part through the transmission part on the contrary;
when the driving device is in a fixed state and the second tooth element is in a free state, the driving device drives the transmission element to rotate, and then the driving device can drive the first tooth element to move so as to drive the second tooth element to rotate in the forward and reverse directions.
Further, the first gear is a rack, and the second gear is a gear meshed with the rack.
Furthermore, the rotating mechanism further comprises a retainer, the rack is provided with a sliding groove along the length direction of the rack, and the retainer is provided with a convex column which is inserted into the sliding groove so that the rack and the gear are always kept in a meshed state.
Further, a linear motion length of the rack is defined as L, and an indexing circumference of the gear is defined as C, wherein:
when the L/C is more than 0 and less than 1, the rotation angle of the driving device relative to the second gear or the rotation angle of the second gear is less than 360 degrees;
when L/C =1, the rotation angle of the driving device relative to the second gear or the rotation angle of the second gear is 360 degrees;
when L/C is larger than 1, the rotation angle of the driving device relative to the second gear or the rotation angle of the second gear is larger than 360 degrees.
Further, the transmission part is a crank, one end of the crank is connected with the movable end of the driving device, and the other end of the crank is hinged to the rack.
Furthermore, the driving device is a motor, and one end of the crank is sleeved on an output shaft of the motor.
In addition, the invention also provides an electric fan, which comprises a base, a fan main body and the rotating mechanism, wherein the rotating mechanism is arranged between the base and the fan main body and is used for driving the fan main body to rotate relative to the base.
Furthermore, the fan main body comprises an upper cover covered on the base, a casing connected with the upper cover and a fan head arranged on the casing, the driving device is connected with the upper cover, and the second tooth piece is connected with the base.
Furthermore, a first accommodating cavity is formed between the upper cover and the base, and the transmission piece, the first gear piece and the second gear piece are all located in the first accommodating cavity.
Furthermore, the top of the upper cover is provided with a mounting groove for placing and fixing the casing, and the mounting groove is provided with a mounting position for mounting the driving device; a second accommodating cavity is formed in the shell, and the driving device is located in the second accommodating cavity.
In summary, according to the rotating mechanism and the electric fan with the rotating mechanism, after the driving device drives the transmission member to rotate in one direction, the first tooth member and the second tooth member are engaged to realize forward and reverse rotation of the fan body relative to the base, so that the rotating mechanism is simple in structure, low in control requirement on the driving device, free of forward and reverse rotation of the driving device, and convenient to operate.
Drawings
Fig. 1 is a schematic structural diagram of an electric fan according to the present invention.
FIG. 2 is an exploded view of the electric fan of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;
FIG. 4 is a schematic view of the electric fan of the present invention with the base hidden;
FIG. 5 is a schematic view of a rotary mechanism of the electric fan according to the present invention;
fig. 6 is an exploded view of the rotary mechanism of the electric fan according to the present invention.
Wherein the reference numerals have the following meanings:
1. a base; 11. a clamping hole; 2. an upper cover; 21. mounting grooves; 22. an installation position; 221. a through hole; 23. mounting a column; 3. a housing; 4. a fan head; 5. a rotation mechanism; 51. a drive device; 52. a transmission member; 53. a first tooth member; 531. a chute; 54. a second tooth member; 541. a clamping block; 55. a cage; 551. a convex column.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1-6, the present invention provides an electric fan, which includes a base 1, a fan main body, and a rotating mechanism 5 disposed between the base 1 and the fan main body and used for driving the fan main body to rotate relative to the base 1. Specifically, the fan main body comprises an upper cover 2 covering the base 1, a casing 3 connected with the upper cover 2, and a fan head 4 arranged on the casing 3, wherein a first accommodating cavity is formed between the upper cover 2 and the base 1, and a second accommodating cavity is formed inside the casing 3. The rotating mechanism 5 includes a driving device 51, a transmission member 52 connected to a movable end of the driving device 51, a first tooth member 53 rotatably connected to the transmission member 52, and a second tooth member 54 engaged with the first tooth member 53. The driving device 51 is installed on the upper cover 2 and located in the second receiving cavity, the transmission member 52, the first tooth member 53 and the second tooth member 54 are located in the first receiving cavity, and the second tooth member 54 is connected to the base 1.
In this embodiment, the driving device 51 is a motor, the transmission member 52 is a crank, the first gear 53 is a rack, and the second gear 54 is a gear; one end of the crank is sleeved on an output shaft of the motor, and the other end of the crank is hinged with the end part of the rack; the rack is meshed with the gear.
Thus, when the base 1 of the electric fan is placed on a table, the base 1 is fixed, i.e., the gear is in a fixed (non-rotating) state. Because the rack is meshed with the gear, after the motor is started, the output shaft of the motor drives the crank to rotate so as to drive the rack to rotate, the rack drives the motor to rotate forward and backward relative to the gear through the crank, and then the fan main body rotates forward and backward relative to the base 1. Meanwhile, the motor and the fan body rotate integrally relative to the base 1, so that the problem of winding of a power cord and the like is avoided.
Of course, in other embodiments, it may be another arrangement that the motor is mounted on the base 1 and the gear is connected with the upper cover 2. Therefore, when the base 1 of the electric fan is placed on a table, the motor on the base 1 is in a fixed state, and the corresponding gear is in a free state. Therefore, when the motor is started, the output shaft of the motor drives the crank to rotate, so as to drive the rack to move back and forth, and the rack is meshed with the gear, so that the gear can be driven to rotate forward and backward, and the forward and backward rotation of the fan main body relative to the base 1 is realized. However, in this embodiment, since the motor is fixed, the power line of the motor is easily wound, but the arrangement of the power line is not the content to be protected in this application, and is not described herein again. Therefore, the fan main body can rotate forwards and backwards relative to the base 1 by adopting the arrangement mode, so that the arrangement mode is not limited.
Therefore, when the electric fan of the present invention is used, after the driving device 51 drives the transmission member 52 to rotate in one direction, the first tooth member 53 and the second tooth member 54 can be engaged with each other, so as to realize the forward and reverse rotation of the fan main body relative to the base 1, which not only has simple structure, but also has low control requirement on the driving device 51, does not need the driving device 51 to perform forward and reverse rotation, and is convenient to operate.
In this embodiment, the top of the upper cover 2 is provided with an installation groove 21 for placing and fixing the housing 3, the installation groove 21 is provided with an installation position 22 for installing the motor, and the installation position 22 is provided with a through hole 221 for passing through the output shaft of the motor; the center of the bottom of the upper cover 2 is convexly provided with a mounting column 23, and the gear is sleeved on the mounting column 23; the bottom of the gear is further convexly provided with a plurality of clamping blocks 541 along the circumferential direction, the center of the base 1 is provided with a clamping hole 11, and the clamping hole 11 is provided with a plurality of clamping grooves which are in clamping fit with the clamping blocks 541 along the circumferential direction, so that the gear is connected with the base 1.
In addition, the rotating mechanism 5 further includes a holder 55 disposed on the mounting post 23 and located between the upper cover 2 and the gear, the rack is provided with a sliding slot 531 along the length direction thereof, and the holder 55 is provided with a convex post 551 inserted into the sliding slot 531. Therefore, the rack and the gear can be always kept in a meshed state through the sliding fit between the convex column 551 and the sliding groove 531.
Referring to fig. 1 to 6, since the rack is engaged with the gear, the length of the linear motion of the rack can be changed by adjusting the length of the crank. Therefore, the linear motion length of the rack is defined as L, the indexing circumference of the gear is defined as C, and when L/C is greater than 0 and less than 1, the circular motion of the motor relative to the gear is less than 360 degrees, namely the rotation angle of the fan main body relative to the base 1 is less than 360 degrees; when L/C =1, the circular motion of the motor relative to the gear is equal to 360 degrees at this time, that is, the rotation angle of the fan body relative to the base 1 is 360 degrees; when L/C is larger than 1, the circular motion of the motor relative to the gear is larger than 360 degrees, namely the rotation angle of the fan body relative to the base 1 is larger than 360 degrees. Therefore, the rotation angle of the fan main body can be adjusted by adjusting the length of the crank, and the adjustment is simple and convenient.
In summary, according to the rotating mechanism and the electric fan with the rotating mechanism of the present invention, when the driving device 51 drives the transmission member 52 to rotate in one direction, the first tooth member 53 and the second tooth member 54 are engaged with each other, so that the forward and reverse rotation of the fan body relative to the base 1 is achieved, and not only is the structure simple, but also the control requirement for the driving device 51 is low, the driving device 51 is not required to perform forward and reverse rotation, and the operation is convenient.
The technical means disclosed in the scheme of the invention are not limited to the technical means disclosed in the above embodiments, but also include the technical means formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (10)

1. A rotary mechanism comprising a drive means, a drive member connected to a movable end of said drive means, a first gear member rotatably connected to said drive member, and a second gear member meshing with said first gear member;
when the driving device is in a free state and the second tooth part is in a fixed state, the driving device drives the transmission part to rotate, then the first tooth part can be driven to rotate, and the driving device is driven to rotate in the forward and reverse directions relative to the second tooth part through the transmission part on the contrary;
when the driving device is in a fixed state and the second tooth element is in a free state, the driving device drives the transmission element to rotate, and then the driving device can drive the first tooth element to move so as to drive the second tooth element to rotate in the forward and reverse directions.
2. The rotary mechanism of claim 1, wherein the first gear is a rack and the second gear is a gear that meshes with the rack.
3. The rotating mechanism according to claim 2, further comprising a holder, wherein the rack is provided with a sliding groove along a length direction thereof, and the holder is provided with a protruding column inserted into the sliding groove so that the rack and the gear are always engaged.
4. The rotary mechanism of claim 2, wherein a linear motion length of the rack is defined as L and an indexing circumference of the gear is defined as C, wherein:
when the L/C is more than 0 and less than 1, the rotation angle of the driving device relative to the second gear or the rotation angle of the second gear is less than 360 degrees;
when L/C =1, the rotation angle of the driving device relative to the second gear or the rotation angle of the second gear is 360 degrees;
when L/C is larger than 1, the rotation angle of the driving device relative to the second gear or the rotation angle of the second gear is larger than 360 degrees.
5. The rotary mechanism of claim 2, wherein the transmission member is a crank, one end of the crank is connected to the movable end of the drive device, and the other end of the crank is hinged to the rack.
6. The rotary mechanism of claim 5, wherein the drive mechanism is a motor, and one end of the crank is sleeved on an output shaft of the motor.
7. An electric fan, characterized by comprising a base, a fan main body and the rotating mechanism which is arranged between the base and the fan main body and is used for driving the fan main body to rotate relative to the base according to any one of claims 1 to 6.
8. The electric fan as claimed in claim 7, wherein the fan body comprises an upper cover covering the base, a housing coupled to the upper cover, and a fan head disposed on the housing, the driving unit is coupled to the upper cover, and the second teeth are coupled to the base.
9. The electric fan as claimed in claim 8, wherein a first receiving cavity is formed between the top cover and the base, and the transmission member, the first tooth member and the second tooth member are located in the first receiving cavity.
10. The electric fan as claimed in claim 8, wherein the top of the upper cover is provided with a mounting groove for placing and fixing the housing, and the mounting groove is provided with a mounting position for mounting the driving device; a second accommodating cavity is formed in the casing, and the driving device is located in the second accommodating cavity.
CN202211005213.4A 2022-08-22 2022-08-22 Rotating mechanism and electric fan with same Pending CN115306751A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202211005213.4A CN115306751A (en) 2022-08-22 2022-08-22 Rotating mechanism and electric fan with same
JP2023019054A JP2024029738A (en) 2022-08-22 2023-02-10 Rotating mechanism and electric fan with it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211005213.4A CN115306751A (en) 2022-08-22 2022-08-22 Rotating mechanism and electric fan with same

Publications (1)

Publication Number Publication Date
CN115306751A true CN115306751A (en) 2022-11-08

Family

ID=83861926

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211005213.4A Pending CN115306751A (en) 2022-08-22 2022-08-22 Rotating mechanism and electric fan with same

Country Status (2)

Country Link
JP (1) JP2024029738A (en)
CN (1) CN115306751A (en)

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Publication number Publication date
JP2024029738A (en) 2024-03-06

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