CN217682384U - Fan used on invisible fan lamp - Google Patents
Fan used on invisible fan lamp Download PDFInfo
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- CN217682384U CN217682384U CN202221794165.7U CN202221794165U CN217682384U CN 217682384 U CN217682384 U CN 217682384U CN 202221794165 U CN202221794165 U CN 202221794165U CN 217682384 U CN217682384 U CN 217682384U
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Abstract
A fan used on a hidden fan lamp comprises a blade frame disc, a fan synchronizing gear, a blade mounting gear, fan blades and a tension spring, wherein mounting holes are formed in the periphery of the blade frame disc, and the fan blades are locked and fixed on the blade mounting gear through fasteners; the device also comprises at least two limiting pressing blocks, and each limiting pressing block is provided with a first connecting part of a tension spring; the fan synchronous gear consists of an annular plate and a plurality of sections of teeth, and the blade mounting gear is mounted on the blade frame disc and then meshed with the corresponding plurality of sections of teeth; at least two arc blocks are arranged on the annular plate at intervals, a folding limiting baffle table is arranged at one end of each arc block, and the arc length of each arc block is greater than the rotation angle of the fan synchronous gear; the fan synchronous gear is provided with a tension spring second connecting part and a blade opening limiting part; the utility model discloses a structure is more reasonable, low in production cost and be convenient for fan blade outwards open and reset the fan that is used for on the stealthy fan lamp of receipts.
Description
Technical Field
The utility model relates to a fan structure especially indicates the fan structure who is used in stealthy fan lamp.
Background
The invisible fan lamp is a lamp which is usually a ceiling lamp or a ceiling lamp, wherein fan blades are outwards opened and rotated when the invisible fan lamp is used, and the fan blades can be folded and hidden when the invisible fan lamp is not used. Therefore, when the fan synchronous gear of the prior invisible fan is installed, a plurality of connecting pieces penetrate through the arc-shaped limiting holes one by one and then are connected and installed on the blade frame disc, the connecting pieces mainly play a role in preventing the fan synchronous gear from falling off from the blade frame disc and limiting the fan blades to be opened outwards to a certain angle during working and not to be opened continuously, so that in order to open the arc-shaped limiting holes on the fan synchronous gear, the width of the fan synchronous gear needs to be larger, and the production cost of the whole invisible fan is increased; in addition, one end of a return spring of the current invisible fan is connected to a fan synchronous gear, and the other end of the return spring is connected to the central position of a blade frame disc; it can be seen that the pull direction of the return spring and the rotation direction of the fan synchronizing gear form an included angle of about 45 degrees, so that the resistance of the return spring to the opening of the fan blade is relatively large, and the return folding of the fan blade is not facilitated.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, providing a fan that is used for on stealthy fan lamp that rational in infrastructure, low in production cost and be convenient for fan blade outwards open and reset to close and close.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a fan used on a hidden fan lamp comprises a blade frame disc, a fan synchronous gear arranged on the blade frame disc, at least three blade mounting gears, fan blades and at least two tension springs for resetting the fan blades, wherein a plurality of mounting holes for mounting the blade mounting gears are formed in the periphery of the blade frame disc, and the end parts of the fan blades are locked and fixed on the blade mounting gears through fasteners; the device also comprises at least two limiting pressing blocks fixedly connected to the blade frame disc, and each limiting pressing block is provided with a first connecting part of a tension spring; the fan synchronous gear consists of an annular plate and a plurality of sections of teeth which are uniformly distributed on the side wall of the annular plate, and each blade mounting gear is mounted in a corresponding mounting hole on the blade frame disc and then meshed with a corresponding plurality of sections of teeth on the fan synchronous gear; at least two arc blocks for pressing limiting pressing blocks are arranged on the inner side wall of the annular plate at intervals, a folding limiting blocking table is arranged at one end of each arc block, and the arc length of each arc block is larger than the rotation angle of the fan synchronous gear; the fan synchronous gear is provided with a tension spring second connecting part and a blade opening limiting part.
In the improved scheme of the fan used on the invisible fan lamp, the blade opening limiting part is a boss arranged on one side of each multi-section tooth.
In the improved scheme of the fan used for the invisible fan lamp, the blade opening limiting part is a limiting table arranged at the other end of each arc-shaped block.
Compared with the prior art, the beneficial effects of the utility model are that: because the fan synchronizing gear is arranged on the blade frame disc through the plurality of limiting pressing blocks and then pressed on the corresponding arc-shaped blocks to be arranged on the blade frame disc, the fan synchronizing gear does not need to be provided with arc-shaped limiting holes like the fan synchronizing gear used on the traditional invisible fan, so that the width of the fan synchronizing gear can be narrower, the novel structure is more reasonable, and the production cost is saved; in addition, one end of the tension spring is connected to a first tension spring connecting part of the corresponding limiting pressing block, the other end of the tension spring is connected to a second tension spring connecting part on the fan synchronizing gear, the tension direction of the tension spring is almost tangent to the rotation direction of the fan synchronizing gear, the tension of the tension spring is more reasonable, the resistance is small when the fan blades are opened, and the fan blades can be conveniently and quickly opened; the fan blades can be reset more quickly when retracted.
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
[ description of the drawings ]
Fig. 1 is a perspective view (bottom view) of an embodiment of the present invention in a normal state;
fig. 2 is a schematic perspective view (top view direction) in a normal state according to an embodiment of the present invention;
FIG. 3 is an enlarged view of detail I of FIG. 2;
FIG. 4 is a schematic view illustrating the installation of a tension spring according to an embodiment of the present invention;
FIG. 5 is an enlarged view of detail II of FIG. 4;
FIG. 6 is a schematic view of a limiting pressing block mounted on a blade carrier plate according to an embodiment of the present invention;
FIG. 7 is an enlarged view of portion III of FIG. 6;
fig. 8 is a schematic perspective view of an operating state of the embodiment of the present invention;
FIG. 9 is an enlarged view of a portion IV of FIG. 8;
FIG. 10 is an enlarged view of portion V of FIG. 8;
fig. 11 is a schematic perspective view of a second embodiment of the present invention in a normal state;
FIG. 12 is an enlarged view of detail VI of FIG. 11;
fig. 13 is a schematic perspective view of the second embodiment of the present invention in a working state;
FIG. 14 is an enlarged view of a portion VII of FIG. 13
[ detailed description ] embodiments
A fan used on a stealth fan lamp is disclosed in figures 1 to 14, and comprises a blade frame disk 1, a fan synchronizing gear 2 arranged in the middle of the blade frame disk 1, at least three blade mounting gears 3 and fan blades 4, and at least two tension springs 5 for resetting the fan blades 4, wherein a plurality of mounting holes (not shown in the figure) for mounting the blade mounting gears 3 are arranged on the periphery of the blade frame disk 1, and the ends of the fan blades 4 are locked and mounted on the blade mounting gears 3 through fasteners; the device also comprises at least two limiting pressing blocks 6 fixedly connected to the blade frame disc 1, and a first connecting part 61 of a tension spring is arranged on each limiting pressing block 6; the fan synchronous gear 2 consists of an annular plate 21 and a plurality of sections of teeth 22 uniformly distributed on the side wall of the annular plate 21, and each blade mounting gear 3 is mounted in a corresponding mounting hole on the blade frame disc 1 and then meshed with the corresponding plurality of sections of teeth 22 on the fan synchronous gear 2; at least two arc-shaped blocks 23 for pressing the limiting pressing blocks 6 are arranged on the inner side wall of the annular plate 21 at intervals, a folding limiting baffle table 7 is arranged at one end of each arc-shaped block 23, the arc length of each arc-shaped block 23 is larger than the rotation angle of the fan synchronizing gear 2, and therefore each limiting pressing block 6 can be guaranteed to always press the arc-shaped block 23 on the fan synchronizing gear 2 even if the fan blades 4 are opened outwards to the maximum, and the fan synchronizing gear 2 is prevented from falling off the blade frame disc 1; the fan synchronous gear 2 is provided with a tension spring second connecting part 8 and a blade opening limiting part 9. In the first and second embodiments, there are four blade mounting gears 3, four fan blades 4, four tension springs 5, four limiting pressing blocks 6, and four arc blocks 23.
When the utility model is assembled, the fan synchronizing gear 2 is firstly placed on the middle position of the blade frame disc 1, then each limit pressing block 6 is sequentially arranged on the corresponding position on the blade frame disc 1, and after the limit pressing blocks 6 are arranged, each limit pressing block 6 is pressed on the corresponding arc-shaped block 23 on the fan synchronizing gear 2, so that the fan synchronizing gear 2 is arranged on the blade frame disc 1; then, all the blade mounting gears 3 are mounted on corresponding mounting holes of the blade frame disc 1 one by one and meshed with corresponding sections of teeth on the fan synchronizing gear 2, and then the fan blades 4 are locked and mounted on each blade mounting gear 3 one by using locking parts; in general, after the fan blades 4 are installed, all the fan blades 3 are folded and hidden above the blade carrier disc 1 (i.e. in a non-working state), at this time, each limiting pressing block 6 is in contact with the folding limiting baffle table 7 at one end of the corresponding arc-shaped block 23, and finally, one end of each tension spring 5 is connected to the tension spring first connecting part 61 of the corresponding limiting pressing block 6, and the other end of each tension spring 5 is connected to the tension spring second connecting part 8 on the fan synchronizing gear 2 (as shown in fig. 4 and 5); thus, the assembly of each part of the utility model is completed.
In a normal state, as shown in fig. 1, 2 and 11, all the fan blades 4 are folded and hidden on the upper surface of the blade frame disc 1, and at the moment, each limit pressing block 6 is in contact with a folding limit stop table 7 at one end of a corresponding arc-shaped block 23; when people need to use the fan, the blade frame disc 1 starts to rotate, then all the fan blades 4 are opened outwards under the action of centrifugal force after overcoming the tension of the tension spring, so that the corresponding blade mounting gears 3 are driven to rotate and are limited by the blade opening limiting parts 9, the fan blades 4 cannot be opened continuously after being completely opened (as shown in figures 8 and 14), and at the moment, the blade frame disc 1 can achieve the blowing effect after continuously rotating. When the fan is not used, the blade frame disc 1 is slowly stopped, the centrifugal force is slowly reduced, the fan blades 4 are slowly reset under the action of the tension spring, and when all the limiting pressing blocks 6 are contacted with the folding limiting baffle table 7 at one end of the corresponding arc-shaped block 23, the fan blades 4 are completely folded and hidden on the upper surface of the blade frame disc 1.
It can be seen from the above that, the fan synchronizing gear 2 is installed on the blade carrier disc 1 by installing a plurality of limiting pressing blocks 6 on the blade carrier disc 1 and then pressing the limiting pressing blocks on the corresponding arc-shaped blocks 23, and it does not need to provide arc-shaped limiting holes on the fan synchronizing gear like the fan synchronizing gear used on the traditional invisible fan, so that the width of the fan synchronizing gear 2 can be narrower (in actual products, the width of the fan synchronizing gear is at least half narrower than that of the fan synchronizing gear used on the traditional invisible fan), thereby the novel structure is more reasonable, and the production cost of the whole invisible fan is saved; in addition, one end of the tension spring 5 is connected to the tension spring first connecting part 61 of the corresponding limiting pressing block 6, the other end of the tension spring 5 is connected to the tension spring second connecting part 8 on the fan synchronizing gear 2, the tension direction of the tension spring 5 is almost tangent to the rotation direction of the fan synchronizing gear 2, the tension of the tension spring 5 is more reasonable, resistance is small when the fan blades 4 are opened, and the fan blades 4 can be conveniently and quickly opened; it is possible to reset more quickly when the fan blades 4 are stowed.
In the first embodiment shown in fig. 3 and 9, the blade opening limiting part 9 is a boss provided on one side of each multi-segment tooth 22, so that when the blade carrier disk 1 starts to rotate and all the fan blades 4 are opened outwards under the action of centrifugal force, all the blade mounting gears 3 rotate simultaneously to drive the fan synchronizing gear 2 to rotate; when the end of one of the teeth on the blade mounting gear 3 contacts the boss on the side of the corresponding multi-end tooth 22, the fan blades cannot be opened any further outward (i.e., the fan blades are fully opened).
In the second embodiment shown in fig. 12 and 14, the blade opening limiting portion 9 is a limiting platform provided at the other end of each arc-shaped block 23, and each limiting pressing block 6 is in contact with the closing limiting stop platform 7 at one end of the corresponding arc-shaped block 23 in a normal state (i.e., in a non-working state); when the invisible fan starts to work, the blade frame disc 1 starts to rotate, all the fan blades 4 are opened outwards under the action of centrifugal force, and when each limiting pressing block 6 is in limiting contact with the other end of the corresponding arc-shaped block 23, the fan blades cannot be opened outwards any more (namely the fan blades are completely opened).
In summary, the preferred embodiments of the present invention are not intended to limit the scope of the present invention, and all equivalent changes and modifications made according to the content of the claims of the present invention should fall within the technical scope of the present invention.
Claims (3)
1. A fan used on a stealthy fan lamp comprises a blade frame disk, a fan synchronous gear arranged on the blade frame disk, at least three blade mounting gears, a fan blade and at least two tension springs for resetting the fan blade, wherein a plurality of mounting holes for mounting the blade mounting gears are formed in the periphery of the blade frame disk, and the end part of the fan blade is locked and fixed on the blade mounting gears through fasteners; the device is characterized by also comprising at least two limiting pressing blocks fixedly connected to the blade frame disc, wherein each limiting pressing block is provided with a first connecting part of a tension spring; the fan synchronous gear consists of an annular plate and a plurality of sections of teeth which are uniformly distributed on the side wall of the annular plate, and each blade mounting gear is mounted in a corresponding mounting hole on the blade frame disc and then meshed with a corresponding plurality of sections of teeth on the fan synchronous gear; at least two arc blocks for pressing the limiting pressing blocks are arranged on the inner side wall of the annular plate at intervals, a folding limiting baffle table is arranged at one end of each arc block, and the arc length of each arc block is larger than the rotation angle of the fan synchronous gear; the fan synchronizing gear is provided with a tension spring second connecting part and a blade opening limiting part.
2. The fan for the invisible fan lamp as claimed in claim 1, wherein the blade opening limiting portion is a boss provided on one side of each of the plurality of teeth.
3. The fan as claimed in claim 1, wherein the blade opening limiting portion is a limiting platform provided at the other end of each of the arc blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221794165.7U CN217682384U (en) | 2022-07-12 | 2022-07-12 | Fan used on invisible fan lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221794165.7U CN217682384U (en) | 2022-07-12 | 2022-07-12 | Fan used on invisible fan lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217682384U true CN217682384U (en) | 2022-10-28 |
Family
ID=83715072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221794165.7U Active CN217682384U (en) | 2022-07-12 | 2022-07-12 | Fan used on invisible fan lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217682384U (en) |
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2022
- 2022-07-12 CN CN202221794165.7U patent/CN217682384U/en active Active
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