CN219795993U - Anti-jamming transmission mechanism and electric fan with same - Google Patents
Anti-jamming transmission mechanism and electric fan with same Download PDFInfo
- Publication number
- CN219795993U CN219795993U CN202320872084.2U CN202320872084U CN219795993U CN 219795993 U CN219795993 U CN 219795993U CN 202320872084 U CN202320872084 U CN 202320872084U CN 219795993 U CN219795993 U CN 219795993U
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- rack
- gear
- transmission mechanism
- clamping block
- horizontal plate
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 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
Abstract
The utility model discloses an anti-jamming 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 device further comprises a retainer rotationally sleeved on the gear, wherein a metal clamping block is arranged on the retainer, and is abutted against the rack and drives the rack to be tightly meshed with the gear; the end surface of the metal fixture block, which is abutted against the rack, is a smooth surface. Therefore, by arranging the metal clamping block on the retainer, the metal clamping block can be abutted against the rack and drive 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. In addition, the utility model also provides an electric fan with the anti-jamming transmission mechanism.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to an anti-jamming 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 anti-jamming transmission mechanism and the electric fan with the same, and the metal clamping block is arranged on the retainer and is abutted with the rack and drives the rack to be tightly meshed with the gear all the time, so that the phenomena of jamming, 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 prevent drive mechanism of jamming, 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 rotatably sleeved on the gear, a metal clamping block is arranged on the rack, and is abutted against the rack and drives the rack to be tightly meshed with the gear;
the end surface of the metal clamping block, which is abutted against the rack, is a smooth surface.
Further, the cage includes a first horizontal plate, a second horizontal plate, and a first vertical plate, 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, and 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;
the metal clamping block is clamped on the inner side of the first vertical plate and is abutted against the rack.
Further, the metal clamping block is of a U-shaped structure and is clamped on the first vertical plate in an encircling mode.
Further, the metal fixture block is made of stainless steel.
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 anti-jamming transmission mechanism and the electric fan with the same, the metal fixture block is arranged on the retainer, and is abutted against the rack and drives the rack to be tightly meshed with the gear all the time, so that the phenomena of jamming, 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 structural view 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; 36. and a metal clamping block.
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 metal clamping block 36 is arranged on the retainer 35, and the metal clamping block 36 is abutted against the gear 33 and drives the gear 33 to be tightly meshed with the gear 34. Specifically, the retainer 35 includes a first horizontal plate 351, a second horizontal plate 352 and a first vertical plate 353, 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, and 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; the metal clamping block 36 has a U-shaped structure, and is clamped inside the first vertical plate 353 in a surrounding manner and is abutted against the rack 33.
In this embodiment, the metal clip 36 is made of stainless steel, and an end surface of the metal clip 36 contacting the rack 33 is a smooth surface.
Therefore, by arranging the metal clamping block 36 on the retainer 35, the metal clamping block 36 is abutted against the rack 33 and drives the rack 33 and the gear 34 to be tightly meshed 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 smooth 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 anti-jamming transmission mechanism 3 and the electric fan with the same, the metal clamping block 36 is arranged on the retainer 35, and the metal clamping block 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 jamming, 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 prevent drive mechanism of jamming, its characterized in that includes drive arrangement, with drive arrangement expansion end is connected the driving medium, rotate and connect rack on the driving medium and with the gear that rack engaged with, wherein:
the rack is rotatably sleeved on the gear, a metal clamping block is arranged on the rack, and is abutted against the rack and drives the rack to be tightly meshed with the gear;
the end surface of the metal clamping block, which is abutted against the rack, is a smooth surface.
2. The transmission mechanism of claim 1, wherein the cage comprises a first horizontal plate, a second horizontal plate, and a first vertical plate, 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, and 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;
the metal clamping block is clamped on the inner side of the first vertical plate and is abutted against the rack.
3. The transmission mechanism according to claim 2, wherein the metal clamping block is of a U-shaped structure and is clamped on the first vertical plate in a surrounding manner.
4. The transmission mechanism of claim 1, wherein the metal latch is made of stainless steel.
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 |
|---|---|---|---|
| CN202320872084.2U CN219795993U (en) | 2023-04-18 | 2023-04-18 | Anti-jamming transmission mechanism and electric fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320872084.2U CN219795993U (en) | 2023-04-18 | 2023-04-18 | Anti-jamming transmission mechanism and electric fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795993U true CN219795993U (en) | 2023-10-03 |
Family
ID=88150480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320872084.2U Active CN219795993U (en) | 2023-04-18 | 2023-04-18 | Anti-jamming transmission mechanism and electric fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795993U (en) |
-
2023
- 2023-04-18 CN CN202320872084.2U patent/CN219795993U/en active Active
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