CN218093547U - Rotation limiting device and electric fan - Google Patents
Rotation limiting device and electric fan Download PDFInfo
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- CN218093547U CN218093547U CN202220837490.0U CN202220837490U CN218093547U CN 218093547 U CN218093547 U CN 218093547U CN 202220837490 U CN202220837490 U CN 202220837490U CN 218093547 U CN218093547 U CN 218093547U
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Abstract
The utility model discloses a rotation limiting device and an electric fan, which comprises a bracket component, a rotating component and a rotating component, wherein the rotating component is rotatably arranged on the bracket; the first limiting mechanism comprises a first connecting piece and a second connecting piece, and the first connecting piece is arranged on the rotating piece; the second connecting piece is arranged on the support; the second connecting piece is used for being connected with or separated from the first connecting piece when the rotating piece rotates around the horizontal shaft; the second limiting mechanism comprises a third connecting piece and a fourth connecting piece, and the third connecting piece is arranged on the rotating piece; the fourth connecting piece is arranged on the support; the fourth connecting member is used for connecting or disconnecting with the third connecting member when the rotating member rotates around the vertical axis. An electric fan comprises the rotation limiting device. The utility model discloses a rotate the piece and can rotate around horizontal axis and vertical axle, and rotate spacing protection by first stop gear and second stop gear when rotating.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a rotate stop device and electric fan.
Background
The circulating fan in the electric fan category is mainly used for room air convection circulation by utilizing large wind speed, long air supply distance and wide angle, enhances the use comfort of the air conditioning fan, and is popular with people.
The circulating fans in the current market basically have a left-right automatic oscillating air supply mechanism, and an up-down oscillating mode is a manual mode; the high-end circulating fan is provided with a left-right automatic oscillating mechanism and an up-down automatic oscillating mechanism. Generally, an automatic oscillating mechanism of a circulating fan has three forms of gear transmission, a four-bar linkage mechanism and a crank rocker mechanism, and in the three forms of mechanisms, a clutch holding mechanism is not designed generally and is used for preventing the external force from being suddenly increased to damage a driving motor. In practice there is still a considerable probability that the circulation fan will be subjected to a large resistance during automatic head shaking. For example, the user pulls the moving fan head with his hand, or the fan head encounters an object blocking phenomenon. If the oscillating mechanism is not engaged with the holding device, the driving electric appliance in the oscillating mechanism is easy to damage.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a rotation limiting device, which can rotate around a horizontal shaft and a vertical shaft and is rotated by a first limiting mechanism and a second limiting mechanism for limiting protection when rotating.
A second object of the utility model is to provide an electric fan, its fan head can rotate around horizontal axis and vertical axle, and rotates spacing protection by first stop gear and second stop gear when rotating, reduces the condition that the fan damaged.
The utility model discloses an one of the purpose adopts following technical scheme to realize:
a rotation limiting device comprises a rotating shaft,
the bracket assembly comprises a support and a rotating piece, wherein the rotating piece is rotatably arranged on the support and is used for rotating around a horizontal shaft; the rotating piece is used for rotating around a vertical shaft;
the first limiting mechanism comprises a first connecting piece and a second connecting piece, and the first connecting piece is arranged on the rotating piece; the second connecting piece is arranged on the support; the second connecting piece is used for being connected with or separated from the first connecting piece when the rotating piece rotates around the horizontal shaft;
the second limiting mechanism comprises a third connecting piece and a fourth connecting piece, and the third connecting piece is arranged on the rotating piece; the fourth connecting piece is arranged on the support; the fourth connecting member is adapted to be coupled to or decoupled from the third connecting member when the rotation member is rotated about the vertical axis.
Furthermore, the support comprises a connecting seat and a base, and the rotating piece is pivoted on the connecting seat and can rotate around a horizontal shaft; the connecting seat is pivoted on the base and can rotate around a vertical shaft; the first connecting piece is arranged on the rotating piece; the second connecting piece is arranged on the connecting seat; the third connecting piece is arranged on the connecting seat; the fourth connecting piece is arranged on the base.
Furthermore, the first connecting piece is a limiting disc; the bottom end of the limiting disc is provided with a plurality of limiting grooves which are distributed at intervals in the rotating direction of the rotating part; the limiting disc is arranged on the rotating piece; the second connecting piece is used for approaching or departing from the limiting groove when the rotating piece rotates; the second connecting piece is used for being clamped into one of the limiting grooves after being close to the limiting grooves.
Furthermore, the second connecting piece comprises an elastic part and a limiting column, and one end of the elastic part is connected to the connecting seat; the other end of the elastic component is connected to the limiting column; the elastic component is used for providing elastic stress for driving the limiting column to move close to the limiting groove.
Furthermore, the third connecting piece is a positioning disc which is arranged at the bottom end of the connecting seat; a plurality of positioning grooves are formed in the positioning plate; the positioning grooves are distributed at intervals in the rotating direction of the connecting seat; the fourth connecting piece is used for sliding from one positioning groove to the other adjacent positioning groove when the connecting seat rotates.
Furthermore, the fourth connecting piece is a positioning sleeve which is connected to the top end of the support in a penetrating manner and is fixed with the support; the top end of the positioning sleeve is convexly provided with a positioning column; the positioning column is used for sliding from one positioning groove to the adjacent other positioning groove when the connecting seat rotates.
Furthermore, a plurality of positioning grooves are formed in the two sides of the positioning disc; the positioning columns are arranged on two sides of the positioning sleeve; each positioning column is correspondingly matched with the positioning grooves on the same side in a sliding mode.
Furthermore, a connecting sleeve is arranged at the bottom end of the positioning plate; the connecting sleeve is inserted into the positioning sleeve and is in pivot fit with the positioning sleeve; and a clearance groove is formed in the positioning sleeve.
Furthermore, connecting arms are arranged on two sides of the connecting seat; an assembly interval is formed between the two connecting arms at intervals; two sides of the rotating part are pivoted on the two connecting arms.
The second purpose of the utility model is realized by adopting the following technical scheme:
an electric fan comprises the rotation limiting device, wherein a fan head of the electric fan is formed into the rotating part; the support of the electric fan is formed as said support.
Compared with the prior art, the beneficial effects of the utility model reside in that: it rotates the rotatable installation of piece on the support, and rotates the piece and can rotate around horizontal axis and vertical axis, rotates piece and can the tilting and rotate about and, rotates spacing protection by first stop gear and second stop gear during the rotation, reduces to rotate the condition that the piece received external force and the damage appears rotating the in-process.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is a partial cross-sectional view of the present invention;
fig. 5 is a schematic structural view of the limiting plate of the present invention;
fig. 6 is a schematic structural view of the positioning plate of the present invention;
fig. 7 is a schematic structural view of the positioning sleeve of the present invention.
In the figure: 10. a support; 11. a connecting seat; 111. a connecting arm; 12. a base; 20. a rotating member; 31. a limiting disc; 311. a limiting groove; 32. a limiting post; 33. an elastic member; 41. positioning a plate; 411. positioning a groove; 42. a positioning sleeve; 421. a positioning column; 422. and (7) avoiding a clearance groove.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to 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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the case of the example 1, the following examples are given,
a rotation limiting device as shown in fig. 1 to 6 includes a bracket assembly including a support 10 and a rotation member 20, the rotation member 20 being rotatably mounted on the support 10, the rotation member 20 being rotatable about a horizontal axis, and the rotation member 20 being rotatable about a vertical axis.
The first limiting mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the rotating piece 20, the second connecting piece is arranged on the support 10, and the second connecting piece can be connected with or separated from the first connecting piece when the rotating piece 20 rotates around a horizontal shaft;
and the second stop gear includes third connecting piece and fourth connecting piece, and the third connecting piece is located on rotating piece 20, and the fourth connecting piece is located on support 10, and the fourth connecting piece is connected or is separated with the third connecting piece when rotating piece 20 around vertical axis rotation.
On the basis of the structure, use the utility model discloses a during rotation stop device, can rotate piece 20 and the rotatable assembly of support 10, the rotation of the relative support 10 of rotation of rotating piece 20 can be through the staff rotation, also can be through the motor drive.
When rotating piece 20 rotates around the horizontal axis, rotating piece 20 rotates and can drive first connecting piece to rotate to second connecting piece on the relative support 10 rotates, in this process, second connecting piece on support 10 can be close to or keep away from first connecting piece, when rotating piece 20 rotates a position, second connecting piece can be close to first connecting piece and realize the connection, rotating piece 20 alright fixed relatively, when rotating once more, first connecting piece can be kept away from to the second connecting piece, rotating piece 20 alright normally rotates relative support 10. Since the connection and disconnection are performed by the approaching or separating motion of the second link and the first link during the rotation of the rotation member 20 about the horizontal axis, the rotation motion can be restricted, preventing the damage of the driving structure due to the sudden increase of the external force.
And when rotating piece 20 around vertical axis rotation, it can drive the third connecting piece that is connected with it to rotate to the fourth connecting piece on the relative support 10 rotates, at this in-process, the fourth connecting piece on the support 10 can be close to or keep away from the third connecting piece, when rotating piece 20 rotates a position, the fourth connecting piece can be close to the third connecting piece and realize connecting, rotate piece 20 alright relatively fixed, when rotating once more, the third connecting piece can be kept away from to the fourth connecting piece, rotate piece 20 alright normally rotate relative support 10. Since the connection and disconnection are performed by the approaching or separating motion of the fourth and third connecting members during the rotation of the rotation member 20 about the horizontal axis, the rotation motion can be restricted, preventing the damage of the driving structure due to the sudden increase of the external force.
So, when rotating piece 20 and rotating, can rotate spacing protection by first stop gear and second stop gear, reduce and rotate piece 20 and receive external force and the condition that the damage appears rotating the in-process.
Further, the support 10 of the present embodiment includes a connecting seat 11 and a base 12, and the rotating element 20 is pivotally connected to the connecting seat 11, and the rotating element 20 can rotate around a horizontal axis. The connecting base 11 is pivotally connected to the base 12, and the connecting base 11 can rotate around the vertical axis. On the basis of the structure, the first connecting piece is arranged on the rotating piece 20, and the second connecting piece is arranged on the connecting seat 11; the third connecting piece is arranged on the connecting seat 11; the fourth connecting member is provided on the base 12.
When carrying out the installation that rotates piece 20, rotate piece 20 can the pin joint on connecting seat 11, and connecting seat 11 then can the pin joint on base 12, when rotating piece 20 rotates around the horizontal axis promptly, rotates piece 20 and can rotate about connecting seat 11 relatively, and when rotating piece 20 need rotate around vertical axle, can make connecting seat 11 rotate base 12 relatively, alright realize rotating the left and right sides of piece 20.
Further, the first connecting element is a limiting disc 31, a plurality of limiting grooves 311 are disposed at the bottom end of the limiting disc 31, and the plurality of limiting grooves 311 are distributed at intervals in the rotating direction of the rotating element 20, specifically, the plurality of limiting grooves 311 may be in the rotating direction of the rotating element 20 rotating around the horizontal axis, and the limiting disc 31 is disposed on the rotating element 20. On the basis of this structure, the second connecting member may be close to or far away from the limiting groove 311 when the rotating member 20 rotates, and the second connecting member may be clamped into one of the limiting grooves 311 after being close to the limiting groove 311.
In the initial state, the second connecting piece can be in joint in one of them spacing groove 311, when rotating piece 20 rotates around the horizontal axis, spacing dish 31 can rotate along with rotating piece 20, the second connecting piece can keep away from spacing groove 311 at spacing dish 31 pivoted in-process, rotate piece 20 and rotate to a position after, the second connecting piece returns the joint again to another spacing groove 311, so, in the in-process that rotating piece 20 lasts the pivoted, the second connecting piece can withdraw from by one of them spacing groove 311, then the joint is to another spacing groove 311 again, realize rotating in-process spacing.
Of course, a plurality of limiting grooves 311 may be disposed on the second connecting member, and the first connecting member may be clamped in one of the limiting grooves 311 of the second connecting member during the rotation of the rotating member 20.
More specifically, the second connecting member includes an elastic member 33 and a position-limiting post 32, one end of the elastic member 33 is connected to the connecting seat 11, and the other end of the elastic member 33 is connected to the position-limiting post 32, the elastic member 33 can provide an elastic stress, and the elastic stress can drive the position-limiting post 32 to move close to the position-limiting groove 311.
Under initial condition, spacing post 32 can be close to spacing groove 311 under the effect of elastic stress, and the joint is in spacing groove 311, when rotating 20 and rotating, elastic stress can be overcome to the turning force that rotates 20, elastomeric element 33 is compressed, spacing post 32 alright withdraw from spacing groove 311, rotating a position at the rolling disc that rotates 20, when another spacing groove 311 corresponds spacing post 32, spacing post 32 alright reset again under the effect of elastic stress, the joint is in spacing groove 311, so, alright realize being close to of second connecting piece or keeping away from spacing groove 311.
Of course, the limiting groove 311 may be a tooth groove in the prior art, and the tooth groove has an inclined tooth surface, which can decompose the force in the rotation process, so as to press the second connecting member to exit from the limiting groove 311.
In addition, the second connecting piece also can directly select for use the elastic rubber block, and the elastic reset capability of the second connecting piece is used for realizing the purpose of keeping away from or approaching to the limiting groove 311.
Further, the third connecting member in this embodiment is a positioning plate 41, the positioning plate 41 is disposed at the bottom end of the connecting seat 11, a plurality of positioning slots 411 are disposed on the positioning plate 41, and the plurality of positioning slots 411 are spaced apart from each other in the rotating direction of the connecting seat 11. The fourth connecting member can slide from one of the positioning slots 411 to the other adjacent positioning slot 411 when the connecting base 11 rotates.
Similarly, during the initial state, the fourth connecting piece on the base 12 can be in joint in one of them constant head tank 411 of positioning disk 41, because connecting seat 11 and base 12 pivot cooperation, therefore when rotating piece 20 needs the left and right rotation, can make connecting seat 11 rotate relative to base 12, positioning disk 41 can rotate, the fourth connecting piece on the base 12 can be slided to adjacent another constant head tank 411 by one of them constant head tank 411 in, so, in the continuous pivoted in-process of connecting seat 11, the fourth connecting piece can withdraw from by one of them constant head tank 411, then joint to another constant head tank 411 in again, realize rotating in-process spacing.
More specifically, the fourth connecting member is a positioning sleeve 42, the positioning sleeve 42 can be inserted into the top end of the support 10 and fixed with the support 10, and a positioning column 421 is convexly disposed on the top end of the positioning sleeve 42. The positioning column 421 can slide from one of the positioning slots 411 to another adjacent positioning slot 411 when the connecting base 11 rotates.
During assembly, the bottom end of the connecting seat 11 can be pivoted to the positioning slot 411, and after assembly, the positioning column 421 on the positioning sleeve 42 can be embedded in the positioning slot 411 of the positioning disc 41 of the connecting seat 11, so as to facilitate the pivoting fit between the positioning disc 41 and the positioning sleeve 42.
Of course, the positioning slot 411 may also be a tooth slot or an arc slot, so that the positioning column 421 can slide from one of the positioning slots 411 to the other positioning slot 411.
Further, can also all be equipped with a plurality of constant head tanks 411 in the both sides of positioning disk 41, correspond and all be equipped with reference column 421 in the both sides of position sleeve 42, each reference column 421 corresponds with a plurality of constant head tanks 411 sliding fit of homonymy, so, when connecting seat 11 rotates relative base 12, can cooperate the spacing cooperation of a plurality of constant head tanks 411 of both sides by the reference column 421 of both sides, spacing process is more stable.
It should be noted that, the connection seat 11 may also be provided with a positioning column 421, and the base 12 is correspondingly provided with a plurality of positioning slots 411, so that the above-mentioned limiting function can also be achieved.
Further, the bottom end of the positioning plate 41 is provided with a connecting sleeve, and when the connecting base 11 and the support 10 are assembled, the connecting sleeve of the positioning plate 41 can be inserted into the positioning sleeve 42 and pivotally matched with the positioning sleeve 42. In addition, the positioning sleeve 42 can be further provided with a clearance groove 422, when further fixing is carried out, the positioning disc 41 can be further fixed through structures such as screws or bolts, the clearance groove 422 can avoid a protruding structure on the positioning disc 41, and the rotation process is not interfered.
Further, connecting arms 111 are arranged on two sides of the connecting base 11; the two connecting arms 111 are spaced to form an assembly interval; the rotating member 20 is pivoted at both sides thereof to two connecting arms 111.
In the case of the example 2, the following examples are given,
an electric fan as shown in fig. 1 to 6, which comprises the above-described rotation limiting device, is different from embodiment 1 in that a fan head of the electric fan is formed as a rotating member 20 in the rotation limiting device; the holder 10 of the electric fan is formed as a holder 10 of a rotation restricting means, and other structures and operation principles are the same as those of embodiment 1.
On the basis of the structure, the fan head can rotate back and forth and left and right relative to the support 10 of the electric fan, and the first limiting mechanism and the second limiting mechanism of the rotating limiting device are used for rotating limiting protection, so that the condition that the motor is damaged due to external force applied to the fan head in the rotating process is reduced.
Various other modifications and changes can be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims.
Claims (10)
1. A rotation limiting device is characterized by comprising,
the bracket assembly comprises a support and a rotating piece, the rotating piece is rotatably arranged on the support, and the rotating piece is used for rotating around a horizontal shaft; the rotating piece is used for rotating around a vertical shaft;
the first limiting mechanism comprises a first connecting piece and a second connecting piece, and the first connecting piece is arranged on the rotating piece; the second connecting piece is arranged on the support; the second connecting piece is used for being connected with or separated from the first connecting piece when the rotating piece rotates around the horizontal shaft;
the second limiting mechanism comprises a third connecting piece and a fourth connecting piece, and the third connecting piece is arranged on the rotating piece; the fourth connecting piece is arranged on the support; the fourth connecting member is used for connecting or disconnecting with the third connecting member when the rotating member rotates around the vertical axis.
2. The rotation limiting device of claim 1 wherein the support comprises a connecting base and a base, and the rotating member is pivotally connected to the connecting base and rotatable about a horizontal axis; the connecting seat is pivoted on the base and can rotate around a vertical shaft; the first connecting piece is arranged on the rotating piece; the second connecting piece is arranged on the connecting seat; the third connecting piece is arranged on the connecting seat; the fourth connecting piece is arranged on the base.
3. The rotational limit apparatus of claim 2, wherein the first connector is a limiting disc; the bottom end of the limiting disc is provided with a plurality of limiting grooves which are distributed at intervals in the rotating direction of the rotating piece; the limiting disc is arranged on the rotating piece; the second connecting piece is used for approaching or departing from the limiting groove when the rotating piece rotates; the second connecting piece is used for being clamped into one of the limiting grooves after being close to the limiting grooves.
4. The rotation limiting device according to claim 3, wherein the second connecting member comprises an elastic member and a limiting post, one end of the elastic member is connected to the connecting seat; the other end of the elastic component is connected to the limiting column; the elastic component is used for providing elastic stress for driving the limiting column to move close to the limiting groove.
5. The rotation limiting device according to any one of claims 2 to 4, wherein the third connecting member is a positioning plate, and the positioning plate is arranged at the bottom end of the connecting seat; a plurality of positioning grooves are formed in the positioning disc; the positioning grooves are distributed at intervals in the rotating direction of the connecting seat; the fourth connecting piece is used for sliding from one positioning groove to the other adjacent positioning groove when the connecting seat rotates.
6. The rotation limiting device according to claim 5, wherein the fourth connecting member is a positioning sleeve, and the positioning sleeve is penetrated at the top end of the support and fixed with the support; the top end of the positioning sleeve is convexly provided with a positioning column; the positioning column is used for sliding from one positioning groove to the other adjacent positioning groove when the connecting seat rotates.
7. The rotation limiting device of claim 6, wherein a plurality of positioning slots are provided on both sides of said positioning plate; the positioning columns are arranged on two sides of the positioning sleeve; each positioning column is correspondingly matched with a plurality of positioning grooves on the same side in a sliding manner.
8. The rotation limiting device according to claim 6, wherein a connecting sleeve is arranged at the bottom end of the positioning disc; the connecting sleeve is inserted into the positioning sleeve and is in pivot fit with the positioning sleeve; and a clearance groove is formed in the positioning sleeve.
9. A rotation limiting device as claimed in any one of claims 2 to 4, wherein connecting arms are provided on both sides of the connecting socket; an assembly interval is formed between the two connecting arms at intervals; two sides of the rotating part are pivoted on the two connecting arms.
10. An electric fan comprising the rotation limiting device as claimed in any one of claims 1 to 9, wherein a fan head of the electric fan is formed as the rotating member; the support of the electric fan is formed as said support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220837490.0U CN218093547U (en) | 2022-04-12 | 2022-04-12 | Rotation limiting device and electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220837490.0U CN218093547U (en) | 2022-04-12 | 2022-04-12 | Rotation limiting device and electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218093547U true CN218093547U (en) | 2022-12-20 |
Family
ID=84460272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220837490.0U Active CN218093547U (en) | 2022-04-12 | 2022-04-12 | Rotation limiting device and electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218093547U (en) |
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2022
- 2022-04-12 CN CN202220837490.0U patent/CN218093547U/en active Active
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