CN219795994U - Novel transmission mechanism and electric fan with same - Google Patents
Novel transmission mechanism and electric fan with same Download PDFInfo
- Publication number
- CN219795994U CN219795994U CN202320872094.6U CN202320872094U CN219795994U CN 219795994 U CN219795994 U CN 219795994U CN 202320872094 U CN202320872094 U CN 202320872094U CN 219795994 U CN219795994 U CN 219795994U
- Authority
- CN
- China
- Prior art keywords
- rack
- gear
- transmission mechanism
- top bead
- horizontal plate
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 239000011324 bead Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a novel transmission mechanism which comprises a driving device, a transmission piece connected with the movable end of the driving device, a rack rotatably connected to the transmission piece and a gear meshed with the rack. The rack is characterized by further comprising a retainer rotatably sleeved on the gear, wherein a top bead and an elastic piece are arranged in the retainer, and the top bead can be driven to abut against the rack under the elastic action of the elastic piece, so that the rack is driven to be tightly meshed with the gear. Therefore, by arranging the top bead and the elastic piece in the retainer, the top bead is abutted against the rack and drives the rack to be tightly meshed with the gear all the time under the elastic action of the elastic piece, and the phenomena of clamping stagnation, vibration and the like of the rack in the moving process are avoided. In addition, the utility model also provides an electric fan with the transmission mechanism.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to a novel transmission mechanism and an electric fan with the same.
Background
At present, most of the rotary electric fans on the market need to be rotated by reversing the motor to drive the rotary electric fans to rotate after rotating for a certain angle in the clockwise direction. However, frequent forward and reverse rotations of the motor tend to affect the service life thereof, thereby reducing reliability. In addition, the rotation mode has high control precision requirement on the motor and is troublesome.
For this reason, patent publication No. CN115306751a discloses a rotary mechanism and an electric fan having the same, the transmission mechanism includes a driving device, a transmission member connected to a movable end of the driving device, a rack rotatably connected to the transmission member, and a gear engaged with the rack, and when the driving device is in a free state and the gear is in a fixed state, the rack is rotated and drives the driving device to rotate forward and backward by engagement with the gear; when the driving device is in a fixed state and the gear is in a free state, the rack swings back and forth and drives the gear to rotate forward and backward. Therefore, after the driving device drives the transmission part to rotate towards one direction, the driving device can realize forward and reverse rotation of the fan main body relative to the base through the meshing between the racks and the gears, and the driving device is simple in structure, free from forward and reverse rotation and convenient to operate.
However, in the process of meshing the rack and the gear, although the retainer is arranged to ensure that the rack and the gear are in a meshing state, the complete meshing between the rack and the gear still cannot be well ensured, so that the rack is easy to generate the phenomena of clamping stagnation, vibration and the like in the moving process, and the fan can not swing stably.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the novel transmission mechanism and the electric fan with the novel transmission mechanism, and the top bead and the elastic piece are arranged in the retainer, and under the elastic action of the elastic piece, the top bead is abutted against the rack and drives the rack to be tightly meshed with the gear all the time, so that the phenomena of clamping stagnation, vibration and the like of the rack in the moving process are avoided.
The utility model adopts the technical proposal for solving the problems that:
the utility model provides a novel drive mechanism, includes drive arrangement, with the driving piece that drive arrangement expansion end is connected, rotate and connect rack on the driving piece and with the gear that rack engaged with, wherein:
the rack is arranged on the gear in a rotating sleeved mode, a top bead and an elastic piece are arranged in the rack, and under the elastic action of the elastic piece, the top bead can be driven to abut against the rack and drive the rack to be tightly meshed with the gear.
Further, the cage includes a first horizontal plate, a second horizontal plate, a first vertical plate, and an extension column, wherein:
the first horizontal plate is rotatably sleeved on the top of the gear and is positioned above the rack, the second horizontal plate is rotatably sleeved on the bottom of the gear and is positioned below the rack, the first vertical plate is respectively connected with the first horizontal plate and the second horizontal plate and is positioned on the outer side of the rack, and the extension column is arranged on the outer side face of the first vertical plate;
the extension column is internally provided with a mounting groove for placing the elastic piece, and the first vertical plate is provided with a limiting hole which is communicated with the mounting groove and can be used for positioning and guiding the top bead.
Further, the elastic piece is a spring, and the top bead penetrates through the limiting hole and stretches into the mounting groove; one end of the spring is abutted with the bottom wall of the mounting groove, and the other end of the spring is abutted with the top bead.
Further, the end part of the top bead, which is used for being abutted against the rack, is configured as a ball head, and the side wall of the rack is provided with a groove matched with the ball head in shape.
Further, the rack is provided with a sliding groove along the length direction, 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 an engaged state.
Further, the transmission piece 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 with the rack.
Further, the driving device is a motor, and one end of the crank is sleeved on an output shaft of the motor.
In addition, the utility model also provides an electric fan which comprises a base, a fan main body and the transmission 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.
In summary, according to the novel transmission mechanism and the electric fan with the novel transmission mechanism, the top bead and the elastic piece are arranged in the retainer, and under the elastic action of the elastic piece, the top bead is abutted against the rack and drives the rack to be tightly meshed with the gear all the time, so that the phenomena of clamping stagnation, vibration and the like of the rack in the moving process are avoided, and the fan main body is ensured to be smooth and steady in forward and reverse rotation.
Drawings
FIG. 1 is a schematic diagram of an electric fan according to the present utility model;
FIG. 2 is an exploded view of the electric fan of the present utility model;
FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;
FIG. 4 is a schematic view of the structure of the electric fan with the base hidden;
FIG. 5 is an exploded view of the transmission mechanism of the electric fan according to the present utility model;
fig. 6 is a schematic structural view of the electric fan according to the present utility model after the transmission mechanism conceals the retainer.
Wherein the reference numerals have the following meanings:
1. a base; 11. a clamping hole; 2. a fan main body; 21. a housing; 211. convex ribs; 22. the fan swings; 23. an upper cover; 231. a mounting column; 3. a transmission mechanism; 31. a driving device; 32. a transmission member; 33. a rack; 331. a chute; 34. a gear; 341. a clamping block; 35. a retainer; 351. a first horizontal plate; 352. a second horizontal plate; 353. a first vertical plate; 3531. a limiting hole; 354. an extension column; 36. top bead; 37. and (3) a spring.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1-6, the present utility model provides an electric fan, which includes a base 1, a fan body 2, and a transmission mechanism 3 disposed between the base 1 and the fan body 2 and used for driving the fan body 2 to rotate relative to the base 1. Specifically, the fan main body 2 includes a casing 21, a fan oscillating head 22 inserted into the top of the casing 21, and an upper cover 23 covering the bottom of the casing 21, wherein a first accommodating cavity is formed between the inside of the casing 21 and the upper cover 23, and a second accommodating cavity is formed between the upper cover 23 and the base 1. The transmission mechanism 3 comprises a driving device 31, a transmission member 32 connected with the movable end of the driving device 31, a rack 33 rotatably connected to the transmission member 32 and a gear 34 meshed with the rack 33; the driving device 31 is mounted on the top of the upper cover 23 and located in the first accommodating cavity, the driving member 32, the rack 33 and the gear 34 are all located in the second accommodating cavity, and the gear 34 is clamped with the base 1.
In this embodiment, the driving device 31 is a motor, and the transmission member 32 is a crank; 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 33; the rack 33 is engaged with a gear 34.
Thus, when the base 1 of the electric fan is placed on the desk surface, the base 1 is fixed, that is, the gear 34 is in a fixed (non-rotating) state. Since the rack 33 is meshed with the gear 34, when the motor is started, the output shaft of the motor drives the crank to rotate so as to drive the rack 33 to rotate, the rack 33 drives the motor to rotate forward and backward relative to the gear 34 through the crank, and the fan main body 2 rotates forward and backward relative to the base 1. At the same time, the motor and the fan body 2 are integrally rotated relative to the base 1, so that the problem of winding of a power line and the like is avoided.
Of course, in other embodiments, it may be another arrangement, i.e. the motor is mounted on the base 1, and the gear 34 is connected with the upper cover 23. Thus, when the base 1 of the electric fan is placed on the table, the motor on the base 1 is in a fixed state and the corresponding gear 34 is in a free state. Therefore, when the motor is started, the output shaft of the motor drives the crank to rotate, and then drives the rack 33 to swing back and forth, and as the rack 33 is meshed with the gear 34, the gear 34 can be driven to rotate forward and backward, so that the forward and backward rotation of the fan main body 2 relative to the base 1 is realized. As can be seen from this, the fan main body 2 can be rotated forward and backward with respect to the base 1 in the same manner as this arrangement, and thus the present utility model is not limited thereto.
Therefore, after the driving device 31 drives the transmission member 32 to rotate in one direction, the driving device 31 can rotate forward and backward relative to the base 1 through the engagement between the rack 33 and the gear 34, so that the structure is simple, the control requirement on the driving device 31 is low, the driving device 31 is not required to rotate forward and backward, and the operation is convenient.
In this embodiment, a plurality of ribs 211 are disposed in the housing 21, a mounting post 231 corresponding to the plurality of ribs 211 is disposed at the top of the upper cover 23, a groove is disposed in the mounting post 231, and the upper cover 23 and the housing 21 can be connected by inserting the ribs 211 into the groove. The bottom center of the upper cover 23 is also provided with a cylinder in a protruding manner, and the gear 34 is sleeved on the cylinder. In addition, the bottom of the gear 34 is further provided with a plurality of clamping blocks 341 in a protruding manner 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 matched with the clamping blocks 341 in a clamping manner along the circumferential direction, so that the connection between the gear 34 and the base 1 is realized.
In addition, the transmission mechanism 3 further comprises a retainer 35 rotatably sleeved on the gear 34 and surrounding the gear 33, wherein a top bead 36 and an elastic member are arranged in the retainer 35, and the top bead 36 can be driven to abut against the gear 33 under the elastic action of the elastic member, so that the gear 33 is driven to be tightly meshed with the gear 34. Specifically, the retainer 35 includes a first horizontal plate 351, a second horizontal plate 352, a first vertical plate 353 and an extension column 354, wherein the first horizontal plate 351 is rotatably sleeved on the top of the gear 34 and is located above the rack 33, the second horizontal plate 352 is rotatably sleeved on the bottom of the gear 34 and is located below the rack 33, the first vertical plate 353 is respectively connected with the first horizontal plate 351 and the second horizontal plate 352 and is located outside the rack 33, and the first horizontal plate 351, the second horizontal plate 352 and the first vertical plate 353 form a U-shaped structure and clamp and wrap the gear 34 and the rack 33; the extension column 354 is disposed on the outer side of the first vertical plate 353; the extending column 354 is provided with a mounting groove (not shown) for placing an elastic member therein, and the first vertical plate 353 is provided with a limiting hole 3531 which is communicated with the mounting groove and can be used for positioning and guiding the top bead 36.
In this embodiment, the elastic member is a spring 37, and the top bead 36 is inserted into the limiting hole 3531 and extends into the mounting groove; one end of the spring 37 is abutted against the bottom wall of the mounting groove, and the other end of the spring 37 is abutted against the top bead 36.
In addition, the end portion of the top bead 36 for abutting against the rack 33 is configured as a ball head, and a groove (not shown in the figure) adapted to the shape of the ball head is formed on the side wall of the rack 33. Therefore, the top bead 36 can be better abutted on the side wall of the rack 33 through the clamping fit of the ball head and the groove, so that the abutting stability between the ball head and the groove is improved.
Therefore, by arranging the top bead 36 and the elastic member in the retainer 35, under the elastic force of the elastic member, the top bead 36 is abutted against the rack 33 and drives the rack 33 to be tightly meshed with the gear 34 all the time, so that the phenomena of clamping stagnation, vibration and the like of the rack 33 in the moving process are avoided, and the fan main body 2 is ensured to be smooth and steady in forward and reverse rotation.
Further, the rack 33 is provided with a sliding groove 331 along a length direction thereof, and the holder 35 is provided with a protrusion (not shown) inserted into the sliding groove 331. Thus, the tightness of engagement of the rack 33 with the gear 34 can be further improved by the sliding engagement between the boss and the slide groove 331.
In summary, according to the novel transmission mechanism 3 and the electric fan with the novel transmission mechanism, the top bead 36 and the elastic piece are arranged in the retainer 35, and under the elastic action of the elastic piece, the top bead 36 is abutted against the rack 33 and drives the rack 33 to be tightly meshed with the gear 34 all the time, so that the phenomena of clamping stagnation, vibration and the like of the rack 33 in the moving process are avoided, and the fan main body 2 is ensured to be smooth and steady in forward and reverse rotation.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (8)
1. The utility model provides a novel drive mechanism, its characterized in that includes drive arrangement, with the driving piece that drive arrangement expansion end is connected, rotate and connect rack on the driving piece and with the gear that rack engaged with, wherein:
the rack is arranged on the gear in a rotating sleeved mode, a top bead and an elastic piece are arranged in the rack, and under the elastic action of the elastic piece, the top bead can be driven to abut against the rack and drive the rack to be tightly meshed with the gear.
2. The transmission mechanism of claim 1, wherein the cage comprises a first horizontal plate, a second horizontal plate, a first vertical plate, and an extension post, wherein:
the first horizontal plate is rotatably sleeved on the top of the gear and is positioned above the rack, the second horizontal plate is rotatably sleeved on the bottom of the gear and is positioned below the rack, the first vertical plate is respectively connected with the first horizontal plate and the second horizontal plate and is positioned on the outer side of the rack, and the extension column is arranged on the outer side face of the first vertical plate;
the extension column is internally provided with a mounting groove for placing the elastic piece, and the first vertical plate is provided with a limiting hole which is communicated with the mounting groove and can be used for positioning and guiding the top bead.
3. The transmission mechanism according to claim 2, wherein the elastic member is a spring, and the top bead is inserted into the limiting hole and extends into the mounting groove; one end of the spring is abutted with the bottom wall of the mounting groove, and the other end of the spring is abutted with the top bead.
4. The transmission mechanism according to claim 1, wherein an end portion of the top bead, which is used for being abutted against a rack, is configured as a ball head, and a groove matched with the ball head in shape is formed in the side wall of the rack.
5. The transmission mechanism according to any one of claims 1 to 4, wherein the rack is provided with a slide groove along a length direction thereof, and the retainer is provided with a boss inserted into the slide groove to keep the rack and the gear in an engaged state all the time.
6. A transmission mechanism according to claim 1, wherein the transmission member is a crank, one end of the crank being connected to the movable end of the drive means, the other end of the crank being hinged to the rack.
7. The transmission mechanism according to claim 6, wherein the driving device is a motor, and one end of the crank is sleeved on an output shaft of the motor.
8. An electric fan comprising a base, a fan body, and a transmission mechanism according to any one of claims 1-7 disposed between the base and the fan body for driving the fan body to rotate relative to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320872094.6U CN219795994U (en) | 2023-04-18 | 2023-04-18 | Novel transmission mechanism and electric fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320872094.6U CN219795994U (en) | 2023-04-18 | 2023-04-18 | Novel transmission mechanism and electric fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795994U true CN219795994U (en) | 2023-10-03 |
Family
ID=88153753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320872094.6U Active CN219795994U (en) | 2023-04-18 | 2023-04-18 | Novel transmission mechanism and electric fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795994U (en) |
-
2023
- 2023-04-18 CN CN202320872094.6U patent/CN219795994U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100515690C (en) | Mode selection mechanism for power tool, and power tool incorporating such mechanism | |
| CN111600981A (en) | Gear and rack linkage type clamping mechanism and mobile phone support | |
| CN219795994U (en) | Novel transmission mechanism and electric fan with same | |
| CN219795993U (en) | Anti-jamming transmission mechanism and electric fan with same | |
| CN116398593A (en) | Gear rack transmission mechanism for electric fan and electric fan | |
| CN209594042U (en) | A kind of easy-operating servo-driver operation panel | |
| CN218118098U (en) | Rotating mechanism and electric fan with same | |
| CN216083364U (en) | Lamp body support and lighting device | |
| CN215830963U (en) | Totally-enclosed precise screw rod dustproof linear module | |
| CN215130643U (en) | Reciprocating transmission mechanism of electric toothbrush | |
| CN115306751A (en) | Rotating mechanism and electric fan with same | |
| CN210624072U (en) | Electronic equipment support | |
| CN210006627U (en) | brushless motor integrated control switch | |
| CN219161205U (en) | Steering gear shell checking fixture | |
| CN212811782U (en) | Vehicle mobile phone support with automatic tracking and charging functions | |
| CN111006315B (en) | Air conditioner indoor unit | |
| CN117419323B (en) | Waterproof floodlight | |
| CN216291033U (en) | Durable electric clamping support | |
| CN220037006U (en) | Up-down oscillating mechanism for electric fan and electric fan | |
| CN220994215U (en) | Carbon steel part processing tilting mechanism | |
| CN214147153U (en) | Query all-in-one machine convenient to store | |
| CN220653168U (en) | Automatic wire hanging mechanism for stator inner winding | |
| CN215322298U (en) | Automatic clamping type wireless charging vehicle-mounted support | |
| CN113954714B (en) | Electric table board assembly and automobile | |
| CN215406261U (en) | Operating mechanism for engineering machinery with small space structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |