CN109538734A - Gear regulating device and projection device - Google Patents
Gear regulating device and projection device Download PDFInfo
- Publication number
- CN109538734A CN109538734A CN201710860920.4A CN201710860920A CN109538734A CN 109538734 A CN109538734 A CN 109538734A CN 201710860920 A CN201710860920 A CN 201710860920A CN 109538734 A CN109538734 A CN 109538734A
- Authority
- CN
- China
- Prior art keywords
- gear
- elastic slice
- regulating device
- casing
- gear regulating
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/185—Leaf springs characterised by shape or design of individual leaves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02069—Gearboxes for particular applications for industrial applications
Abstract
The present invention provides a kind of gear regulating device, including casing, the second gear that first gear on the housing is set and is driven by the first gear, the first gear and second gear intermeshing are arranged, the gear regulating device generates axial displacement by the rotation of the first gear and the second gear, the elastic slice for damping is provided in first gear and/or the second gear, pass through the setting of elastic slice, overcome the vibration that the vibration sources such as loudspeaker are conducted between prior art middle gear, the problems such as vibration abnormal sound occurs, effectively improve properties of product, with good user experience.
Description
Technical field
The present invention relates to mechanical shock absorption fields, more particularly to a kind of gear regulating device with shock-absorbing function and projection
Equipment.
Background technique
Currently, projection device has minimized, in use, the scene used can be converted constantly, need to pass through tune
The height of whole support leg adjusts the angle of projection image to reach perfect visual effect.For using gear regulating device
The projection device of support leg protrusion height is adjusted, a pair of of gear needs of engagement make one of gear generate axis by rotating
To displacement namely adjust support leg height change value, to realize the height adjusting function of support leg.It can be solid in design
Determining to reserve certain gap width between screw and the end face of gear ensures the normal rotation of size, due to the presence of this gap, easily
Lead to the vibration for conducting the vibration sources such as loudspeaker between gear, vibration abnormal sound occurs, customer experience is bad.
Based on the above reasons, there is an urgent need to provide a kind of gear regulating device, the normal rotation of gear had not only been can guarantee, but also not
A problem that vibrating abnormal sound can occur.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of gear regulating devices with shock-absorbing function and application should
The projection device of gear regulating device is vibrated with solving to conduct the vibration of the vibration sources such as loudspeaker between prior art middle gear
Abnormal sound, the bad problem of customer experience.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of gear regulating device is provided, is wrapped
The second gear for including casing, first gear on the housing being set and is driven by the first gear, the first gear
It is intermeshed and is arranged with the second gear, turn that the gear regulating device passes through the first gear and the second gear
It is dynamic so that at least one of the first gear and the second gear generate axial displacement, the first gear and/or
The elastic slice for damping is provided in the second gear.
Preferably, the elastic slice includes the first elastic slice being arranged in the first gear and is arranged in the second gear
On the second elastic slice.
Preferably, first elastic slice is circular configuration, is fitted in the first gear far from the casing side
End face.
Preferably, it is provided on the casing to the first gear direction fixed column outstanding, the first gear can
It is rotatably set in the fixed column, fixation hole is provided in the fixed column, is provided on first elastic slice in being located at
The through-hole of the heart, the through-hole are correspondingly arranged with the fixation hole, and first elastic slice is by passing through the through-hole and the fixation
The screw in hole is arranged on the end face of the first gear.
Preferably, the gear regulating device further includes fixed gear stand on the housing, the gear stand
Accommodating space is formed between the casing, the second gear is housed in the accommodating space.
Preferably, the gear stand includes with the bracket main body portion of casing relative spacing setting and from the rack body
The bracket fixture portions that two sides in portion extend to the bending of casing direction, the bracket fixture portions are fixedly connected with the casing.
Preferably, second elastic slice includes the elastic slice main part being oppositely arranged with the bracket main body portion, from described
The both ends of the first direction of two elastic slices extend and the first elastic slice fixed part for being fixedly connected with the bracket fixture portions and from institute
State the both ends of the second direction of the second elastic slice extend and are connected with the second gear far from the end face of casing side second
Elastic slice fixed part.
Preferably, the positioning region being correspondingly arranged with the second gear, the gear are provided on the bracket main body portion
Regulating device includes a wheel shaft to match with the positioning region, and the wheel is arranged in the second gear in which can axially move
On axis.
Preferably, the wheel shaft is fixed by screws on the bracket main body portion, is provided on the elastic slice main part
The relief hole being oppositely arranged with the positioning region.
Preferably, the elastic slice using stainless steel material prepare, the elastic slice with a thickness of 0.1-0.3mm.
Preferably, symmetrical salient point is provided on the elastic slice.
Preferably, the groove of die sinking is provided on the elastic slice.
In order to solve the above technical problems, another technical solution used in the present invention is: a kind of projection device is provided, including
Gear regulating device as described above.
The beneficial effects of the present invention are: being in contrast to the prior art, the present invention provides a kind of gear regulating device,
It is provided with the elastic slice for damping in first gear and/or the second gear, the prior art is overcome by the setting of elastic slice
The vibration that the vibration sources such as loudspeaker are conducted between middle gear, occurs the problems such as vibrating abnormal sound, effectively improves properties of product, has good
Good user experience.
Detailed description of the invention
Fig. 1 is the part assembling structure schematic diagram of gear regulating device of the present invention；
Fig. 2 is the structural schematic diagram of the first elastic slice of gear regulating device of the present invention；
Fig. 3 is the structural schematic diagram of the second elastic slice of gear regulating device of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of gear regulating device and the projection device using the gear regulating device.
As shown in Figure 1, gear regulating device of the present invention includes casing 1, gear stand 2, first gear 3 and second gear 4.
First gear 3 can be rotatably set on casing 1, and first gear 3 and the second gear 4 intermeshing are arranged,
It drives second gear 4 to rotate by first gear 3 and generates along axial displacement, to realize height adjustment vertically.
It should be noted that in the present embodiment, axial displacement is generated for second gear 4, in selectable other embodiments
In, it can also be to be axially fixed setting, and first gear 3 generates axial displacement with second gear 4；In addition, alternatively possible
Embodiment in, axially opposed movement can be done with first gear 3 and second gear 4, that is, first gear 3 and second gear 4
Axial displacement is generated, and can be implemented.
Specifically, being provided on casing 1 to 3 direction of first gear fixed column 11 outstanding, first gear 3 rotatably covers
It is located in fixed column 11, to realize the rotation of first gear 3 in the horizontal direction.
First gear 3 includes adjusting idler wheel 31 and being fixed on to adjust on idler wheel 31 by the gear of the drive rotation of adjusting idler wheel 31
Driving portion 32.When being applied to projection device, the shell exterior that 31 at least part of idler wheel extends to projection device is adjusted, is used for
Gear regulating device is manually adjusted, specific application environment for example adjusts the pitch angle etc. of projection lenses equipment.When manual
Rotation adjusts idler wheel 31, will drive the rotation of gear driving portion 32, so that second gear 4 be driven to rotate.
Gear stand 2 is fixed on casing 1 and forms the accommodating space of receiving second gear 4 between casing 1.Specifically
, gear stand 2 includes with the bracket main body portion 21 of 1 relative spacing of casing setting and two sides from bracket main body portion 21 to casing
The bracket fixture portions 22 that the bending of 1 direction extends, bracket fixture portions 22 are fixedly connected with casing 1.
Positioning region is provided on bracket main body portion 21, wherein positioning region can be the locating slot being recessed to 1 direction of casing,
It can be location hole.Gear regulating device further comprises a wheel shaft to match with positioning region, in the present embodiment, wheel shaft
The screw 8 for passing through positioning region by one is fixed on bracket main body portion 21, and wheel shaft is arranged in can axially move in second gear 4
On.When manual rotation adjusts idler wheel 31, it will drive the rotation of gear driving portion 32 and rotated so that second gear 4 be driven to rotate
While generate along wheel axis direction displacement, thus play the role of adjust projection device pitch angle.
In order to solve to conduct the vibration of the vibration sources such as loudspeaker between prior art middle gear, vibration abnormal sound, customer experience occurs
Bad problem, gear regulating device of the invention include the first elastic slice 5 being arranged in first gear 3 and are arranged in the second tooth
The second elastic slice 6 on wheel 4.Wherein the first elastic slice 5 and the second elastic slice 6 are respectively used to first gear 3 and the damping of second gear 4 is made
With.
As shown in Figures 2 and 3, the first elastic slice 5 is circular configuration, is fitted in end face of the first gear 3 far from 1 side of casing
On, specifically in the present embodiment, it is provided with fixation hole 110 in fixed column 11, through-hole 51, through-hole 51 are provided on the first elastic slice
It is correspondingly arranged with fixation hole 110.
After first gear 3 is set in fixed column 11, the first elastic slice 5 is sticked on the end face of first gear 3, and by through-hole
51 is corresponding with fixation hole 110, first gear 3 and the first elastic slice 5 is fixed on casing 1 by screw 7, and realize the first tooth
Wheel 3 is along the rotation of plane and the shock-absorbing function of the first elastic slice 5.
Second elastic slice 6 includes the elastic slice main part 61 being oppositely arranged with bracket main body portion 21, from the first party of the second elastic slice 6
To the first elastic slice fixed part 62 for extending of both ends and the second elastic slice for extending of both ends of second direction from the second elastic slice fix
Portion 63.In the present embodiment, the elongated structure of the second elastic slice, first direction are long axis direction, and second direction is short axle side
To corresponding bracket main body portion 21 is also string configuration, and bracket fixture portions 22 are also disposed at the long axis direction of gear stand 2
On.In fact, or other structures, as long as realize the first elastic slice fixed part 62 be fixed on bracket fixture portions 22, being can
With implementation.
Wherein two first elastic slice fixed parts 62 are fixedly connected with two stands fixed part 22 by two fixing screws 9 respectively,
Second elastic slice fixed part 63 is connected with second gear 6 far from the end face of 1 side of casing.Wherein it is provided on elastic slice main part 61
Relief hole 611, for being avoided to the screw 8 on the wheel shaft or wheel shaft in second gear 4.
First elastic slice 5 and the second elastic slice 6 be all made of stainless steel material preparation, elastic slice with a thickness of 0.1-0.3mm, preferably
, keep shock-proof effect more preferable at this point it is possible to reach best elastic property for 0.2mm stainless steel elastic slice.Certainly, it may be selected
Other embodiments in, or other materials or other thickness.In the present embodiment, the first elastic slice 5 and the second bullet
Piece 6 is two mutually independent separate structures, in implementation, in selectable other embodiments, and the first elastic slice 5 and the second bullet
Piece 6 or integral structure.
Further, salient point can also be set on the first elastic slice 5 and the second elastic slice 6, salient point includes being arranged in the first elastic slice 5
On first salient point 53 and the second salient point 65 for being arranged on the second elastic slice 6.Salient point is scattered in symmetric shape to maintain to tooth
The balance of the elastic force of wheel.Preferably, the edge of the gear of first gear 3 and second gear 4 far from gear shaft is arranged in salient point,
In this way, elastic arm can be increased, better elastic effect is obtained.
Further, the first elastic slice 5 and the second elastic slice 6 are additionally provided with the groove of die sinking, wherein offering on the first elastic slice 5
Square groove 64 offers kidney slot 52 on second elastic slice 6, and effect is the sectional area for reducing the arm of force, to increase elasticity, plays more preferable
Elastic effect.
In the present embodiment, the elastic slice for damping is provided in first gear 3 and second gear 4, this is one
Kind preferably embodiment, in fact, only wherein one it is upper elastic slice is set, and a degree of damping and drop can be played
The effect of low noise, and can achieve the object of the invention.
The beneficial effects of the present invention are: being in contrast to the prior art, the present invention provides a kind of gear regulating device,
It is provided with the elastic slice for damping in first gear and/or the second gear, the prior art is overcome by the setting of elastic slice
The vibration that the vibration sources such as loudspeaker are conducted between middle gear, occurs the problems such as vibrating abnormal sound, effectively improves properties of product, has good
Good user experience.
In addition, the present invention also provides a kind of projection device using gear regulating device as described above, the projection device
Support leg protrusion height can be adjusted effectively to adjust the angle of projection image to reach perfect visual effect, and can be with
A problem that generating noise during the adjustment effectively is avoided, there is good customer experience.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (13)
1. a kind of gear regulating device, driven including casing, setting first gear on the housing and by the first gear
Dynamic second gear, the first gear and second gear intermeshing are arranged, and the gear regulating device passes through described
The rotation of first gear and the second gear is so that at least one of the first gear and the second gear generate axis
To displacement, which is characterized in that the elastic slice for damping is provided in the first gear and/or the second gear.
2. gear regulating device according to claim 1, which is characterized in that the elastic slice includes being arranged in first tooth
The first elastic slice on wheel and the second elastic slice being arranged in the second gear.
3. gear regulating device according to claim 2, which is characterized in that first elastic slice is circular configuration, patch
It closes in end face of the first gear far from the casing side.
4. gear regulating device according to claim 3, which is characterized in that be provided on the casing to first tooth
Direction fixed column outstanding is taken turns, the first gear is rotatably set in the fixed column, is provided in the fixed column
Fixation hole is provided with centrally located through-hole on first elastic slice, and the through-hole is correspondingly arranged with the fixation hole, and described
One elastic slice is arranged on the end face of the first gear by passing through the screw of the through-hole and the fixation hole.
5. gear regulating device according to claim 2, which is characterized in that the gear regulating device further includes being fixed on
Gear stand on the casing forms accommodating space, the second gear receiving between the gear stand and the casing
In the accommodating space.
6. gear regulating device according to claim 5, which is characterized in that between the gear stand includes opposite with casing
The bracket fixture portions that bracket main body portion every setting and two sides from the bracket main body portion extend to the bending of casing direction, it is described
Bracket fixture portions are fixedly connected with the casing.
7. gear regulating device according to claim 6, which is characterized in that second elastic slice includes and the bracket master
Elastic slice main part that body portion is oppositely arranged, extend from the both ends of the first direction of second elastic slice and with the bracket fixture portions
The both ends of the first elastic slice fixed part for being fixedly connected and the second direction from second elastic slice extend and with second tooth
Take turns the second elastic slice fixed part that the end face far from casing side is connected.
8. gear regulating device according to claim 7, which is characterized in that be provided on the bracket main body portion with it is described
The positioning region that second gear is correspondingly arranged, the gear regulating device includes a wheel shaft to match with the positioning region, described
Second gear is arranged on the wheel shaft in which can axially move.
9. gear regulating device according to claim 8, which is characterized in that the wheel shaft is fixed by screws in the branch
In frame body portion, the relief hole being oppositely arranged with the positioning region is provided on the elastic slice main part.
10. gear regulating device according to claim 1, which is characterized in that the elastic slice is prepared using stainless steel material,
The elastic slice with a thickness of 0.1-0.3mm.
11. gear regulating device according to claim 1, which is characterized in that be provided on the elastic slice symmetrical
Salient point.
12. gear regulating device according to claim 1, which is characterized in that be arranged on the elastic slice fluted.
13. a kind of projection device, which is characterized in that adjust dress including the gear as described in any one of claims 1 to 12
It sets.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860920.4A CN109538734B (en) | 2017-09-21 | 2017-09-21 | Gear adjusting device and projection equipment |
| PCT/CN2017/114747 WO2019056585A1 (en) | 2017-09-21 | 2017-12-06 | Gear adjustment device, and projection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860920.4A CN109538734B (en) | 2017-09-21 | 2017-09-21 | Gear adjusting device and projection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538734A true CN109538734A (en) | 2019-03-29 |
| CN109538734B CN109538734B (en) | 2021-04-30 |
Family
ID=65810546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710860920.4A Active CN109538734B (en) | 2017-09-21 | 2017-09-21 | Gear adjusting device and projection equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109538734B (en) |
| WO (1) | WO2019056585A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200513780A (en) * | 2003-10-09 | 2005-04-16 | Coretronic Corp | Adjusting structure of projector |
| CN2694034Y (en) * | 2004-04-16 | 2005-04-20 | 重庆通盛机械工业有限公司 | Motorcycle clutch |
| US20070081263A1 (en) * | 2005-09-01 | 2007-04-12 | Samsung Electro-Mechanics Co., Ltd. | Vibration type tilting device and damping adjustment method therefor |
| CN101373242A (en) * | 2007-08-20 | 2009-02-25 | 中强光电股份有限公司 | Lens adjusting apparatus |
| CN102200676A (en) * | 2010-03-24 | 2011-09-28 | 鸿富锦精密工业（深圳）有限公司 | Image projection equipment |
| CN102654724A (en) * | 2011-03-01 | 2012-09-05 | 中强光电股份有限公司 | Projector and lifting module thereof |
| CN203707919U (en) * | 2013-12-31 | 2014-07-09 | 宁国中创科技密封件有限公司 | Fan electromotor positioning rubber sheet |
| CN205780709U (en) * | 2016-05-25 | 2016-12-07 | 深圳市恒浩伟业科技有限公司 | A kind of silent gear |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008116577A (en) * | 2006-11-01 | 2008-05-22 | Sharp Corp | Height adjustment device and projection type video display device |
| CN102193282B (en) * | 2010-03-12 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Projector |
| CN202108960U (en) * | 2011-06-28 | 2012-01-11 | 杨仲磊 | Combined elastic gear |
-
2017
- 2017-09-21 CN CN201710860920.4A patent/CN109538734B/en active Active
- 2017-12-06 WO PCT/CN2017/114747 patent/WO2019056585A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200513780A (en) * | 2003-10-09 | 2005-04-16 | Coretronic Corp | Adjusting structure of projector |
| CN2694034Y (en) * | 2004-04-16 | 2005-04-20 | 重庆通盛机械工业有限公司 | Motorcycle clutch |
| US20070081263A1 (en) * | 2005-09-01 | 2007-04-12 | Samsung Electro-Mechanics Co., Ltd. | Vibration type tilting device and damping adjustment method therefor |
| CN101373242A (en) * | 2007-08-20 | 2009-02-25 | 中强光电股份有限公司 | Lens adjusting apparatus |
| CN102200676A (en) * | 2010-03-24 | 2011-09-28 | 鸿富锦精密工业（深圳）有限公司 | Image projection equipment |
| CN102654724A (en) * | 2011-03-01 | 2012-09-05 | 中强光电股份有限公司 | Projector and lifting module thereof |
| CN203707919U (en) * | 2013-12-31 | 2014-07-09 | 宁国中创科技密封件有限公司 | Fan electromotor positioning rubber sheet |
| CN205780709U (en) * | 2016-05-25 | 2016-12-07 | 深圳市恒浩伟业科技有限公司 | A kind of silent gear |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019056585A1 (en) | 2019-03-28 |
| CN109538734B (en) | 2021-04-30 |
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