CN101761883B - Light fitting vibration damping device - Google Patents
Light fitting vibration damping device Download PDFInfo
- Publication number
- CN101761883B CN101761883B CN 201010102658 CN201010102658A CN101761883B CN 101761883 B CN101761883 B CN 101761883B CN 201010102658 CN201010102658 CN 201010102658 CN 201010102658 A CN201010102658 A CN 201010102658A CN 101761883 B CN101761883 B CN 101761883B
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- vibration damping
- damping sheath
- vibration
- interior
- sheath
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a light fitting vibration damping device which comprises an outer vibration damping jacket and an inner vibration damping jacket coaxially arranged, wherein the outer vibration damping jacket and the inner vibration damping jacket are both elastic elements; the inner vibration damping jacket is higher than the outer vibration damping jacket; the inner vibration damping jacket is fixed on an installation plate; and a light fitting is fixed by the inner vibration damping jacket. When a system comprising the light fitting, the outer vibration damping jacket and the innervibration damping jacket receives vibration from outside, the light fitting firstly transmits the vibration energy to the inner vibration damping jacket uniformly through a pressing piece, and the inner vibration damping jacket generates elastic deformation to buffer vibration excitation, thereby achieving the purpose of damping vibration to the light fitting. When the vibration from the outside is larger, the inner vibration damping jacket generates larger deformation, and the height difference of the outer vibration damping jacket and the inner vibration damping jacket is reduced to zero. When the height difference of the outer vibration damping jacket and the inner vibration damping jacket is zero, the outer vibration damping jacket begins to be compressed, thereby assisting the inner vibration damping jacket to bear vibration impact, preventing fatigue or failure of the inner vibration damping jacket, and further improving the vibration damping effect.
Description
Technical field
The invention belongs to the vibration absorber field, relate in particular to a kind of lamp vibration damper that prevents that elastic component is tired or lost efficacy.
Background technology
Increasingly extensive along with the lighting application; the light fixture that uses in a lot of occasions through regular meeting continued, strong vibration; existing light fixture mainly is to adopt single elastic component to absorb or the buffering vibration energy; because the damped coefficient of this single elastic component is single; when being subjected to than macro-energy and during than the vibration of large amplitude; elastic component fatiguability or inefficacy cause the vibrational energy major part to pass on the light fixture, do not reach the purpose of vibration damping.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of lamp vibration damper, is running into than macro-energy and during than large-amplitude vibration, can prevent that elastic component is tired or loses efficacy, and reaches the purpose of vibration damping.
The present invention realizes like this, a kind of lamp vibration damper, be used for being connected with the screw rod of light fixture and being fixedly arranged on an installing plate, this vibration absorber comprises outer vibration damping sheath and the interior vibration damping sheath of coaxial setting, described outer vibration damping sheath and interior vibration damping sheath are elastic component, the vibration damping sheath is fixedly arranged on the described installing plate in described, the screw rod of described light fixture is slidedly arranged in the described interior vibration damping sheath, the upper surface of vibration damping sheath is higher than the upper surface of described outer vibration damping sheath in described, be installed with a compressing tablet on the screw rod of described light fixture, described compressing tablet is located at the upper surface of described interior vibration damping sheath, offer an annular groove that circumferentially arranges in described on the lateral wall of vibration damping sheath, described installing plate is arranged in the described annular groove, and the lower end of described outer vibration damping sheath contacts with described installing plate, the lower end of vibration damping sheath is provided with a pad in described, described pad is sheathed on the described screw rod, described pad is fixed by a stop collar of being located on the described screw rod, described pad places described installing plate below, and is provided with spacing between described pad and the installing plate.
Particularly, described outer vibration damping sheath and interior vibration damping sheath are hollow column structure.
Particularly, described compressing tablet center offers a draw-in groove, and the nut that described draw-in groove and is located on the described screw rod engages.
Particularly, offer blind hole on the described stop collar, be processed with internal thread in the described blind hole, the blind hole of described stop collar is connected with described screw flight.
Particularly, the madial wall of described outer vibration damping sheath is provided with a boss that circumferentially arranges, and described boss cooperates with the lateral wall of described interior vibration damping sheath.
Preferably, described outer vibration damping sheath and interior vibration damping sheath are made by elastomeric material.
The present invention also provides a kind of light fixture, comprises a screw rod and foregoing vibration absorber, and the screw rod of described light fixture is slidedly arranged in the interior vibration damping sheath of described vibration absorber.
Particularly, described interior vibration damping sheath is fixedlyed connected with an installing plate.
Lamp vibration damper provided by the invention, when vibration that system that light fixture, outer vibration damping sheath and interior vibration damping sheath are formed is come from the outside, vibration damping sheath in light fixture at first evenly passes to its vibrational energy by compressing tablet, interior vibration damping sheath produces strain and comes the buffering vibration excitation, in this process, the vibrational energy of vibration source is given birth to heat by the strain generation damping of interior vibration damping sheath and is lost gradually, thereby reaches the purpose to the light fixture vibration damping; When being subjected to the vibration that comes from the outside bigger, interior vibration damping sheath produces bigger distortion, the difference in height of outer vibration damping sheath and interior vibration damping sheath is dwindled until being zero, when the difference in height of outer vibration damping sheath and interior vibration damping sheath is zero, outer vibration damping sheath begins compressed, the vibration damping sheath bears vibratory impulse in auxiliary, and the tired or inefficacy of vibration damping sheath further improves effectiveness in vibration suppression in preventing.
Description of drawings
Fig. 1 is the schematic diagram that vibration absorber that the embodiment of the invention provides is installed on the light fixture below;
Fig. 2 is the A place enlarged diagram among Fig. 1;
Fig. 3 is the generalized section of the interior vibration damping sheath that provides of the embodiment of the invention;
Fig. 4 is the side view of the interior vibration damping sheath that provides of the embodiment of the invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As Fig. 1～shown in Figure 4, a kind of lamp vibration damper that the embodiment of the invention provides, be used for being connected with the screw rod 21 of light fixture 2 and being fixedly arranged on an installing plate 3, this vibration absorber comprises outer vibration damping sheath 11 and the interior vibration damping sheath 12 of coaxial setting, described outer vibration damping sheath 11 and interior vibration damping sheath 12 are elastic component, vibration damping sheath 12 is fixedly arranged on the described installing plate 3 in described, the screw rod 21 of described light fixture 2 is slidedly arranged in the described interior vibration damping sheath 12, the upper surface of vibration damping sheath 12 is higher than the upper surface of described outer vibration damping sheath 11 in described, be installed with a compressing tablet 13 on the screw rod 21 of described light fixture 2, described compressing tablet 13 is located at the upper surface of described interior vibration damping sheath 12.When vibration that system that light fixture 2, outer vibration damping sheath 11 and interior vibration damping sheath 12 are formed is come from the outside, vibration damping sheath 12 in light fixture 2 at first evenly passes to its vibrational energy by compressing tablet 13, interior vibration damping sheath 12 produces strain and comes the buffering vibration excitation, in this process, the vibrational energy of vibration source is given birth to heat by the strain generation damping of interior vibration damping sheath 12 and is lost gradually, thereby reaches the purpose to light fixture 2 vibration dampings; When the vibration that is subjected to coming from the outside bigger of system that light fixture 2, outer vibration damping sheath 11 and interior vibration damping sheath 12 are formed, interior vibration damping sheath 12 produces bigger distortion, the difference in height of outer vibration damping sheath 11 and interior vibration damping sheath 12 is dwindled until being zero, when the difference in height of outer vibration damping sheath 11 and interior vibration damping sheath 12 is zero, outer vibration damping sheath 11 beginnings are compressed, vibration damping sheath 12 bears vibratory impulse in auxiliary, and the 12 tired or inefficacies of vibration damping sheath further improve effectiveness in vibration suppression in preventing.
Particularly, described outer vibration damping sheath 11 and interior vibration damping sheath 12 are hollow column structure.Offer an installing hole 121 that axially arranges in described on the vibration damping sheath 12, the screw rod 21 of described light fixture 2 is slidedly arranged in the described installing hole 121.Offer an annular groove 122 that circumferentially arranges in described on the lateral wall of vibration damping sheath 12, described annular groove 122 cooperates with described installing plate 3, thereby vibration damping sheath 12 is positioned at installing plate 3 places in making.The madial wall of described outer vibration damping sheath 11 is provided with a boss 111 that circumferentially arranges, and described boss 111 cooperates with the lateral wall of described interior vibration damping sheath 12, thereby makes boss 111 outer vibration damping sheath 11 is positioned at the excircle place of interior vibration damping sheath 12.
On vibration damping sheath 12 in light fixture 2 is fixed on, the upper surface of vibration damping sheath 12 at first described compressing tablet 13 being fitted in, compressing tablet 13 centers offer a draw-in groove 131, the nut 14 that draw-in groove 131 and is located on the screw rod 21 engages, draw-in groove 131 is used for preventing that nut 14 from rotating, and after installing, the torsion of nut 14 acts on the compressing tablet 13 by draw-in groove 131, compressing tablet 13 imposes on power interior vibration damping sheath 12 more equably, and vibration damping sheath 12 is subjected to precommpression in making; Next, in the lower end of interior vibration damping sheath 12 pad 14 is set, pad 14 is sheathed on the screw rod 21, and pad 14 is fixed by a stop collar 15 of being located on the screw rod 21, vibration damping sheath 12 is subjected to precommpression in making, thus the purpose on the vibration damping sheath 12 in having realized light fixture 2 is fixed on.
Particularly, offer the blind hole (not shown) on the stop collar 15, be processed with internal thread in the blind hole, the blind hole of stop collar 15 is threaded with screw rod 21, the position of vibration damping sheath 12 in the blind hole of stop collar 15 is used for limiting is with the pre compressed magnitude of vibration damping sheath 12 in controlling.
In order to improve the elastic force of outer vibration damping sheath 11 and interior vibration damping sheath 12, outer vibration damping sheath 11 and interior vibration damping sheath 12 preferred rubber materials are made, the coefficient of elasticity height of rubber, add by outer vibration damping sheath 11 and interior vibration damping sheath 12 and realize the two-stage vibration damping, guaranteed interior vibration damping sheath 12 indefatigability or inefficacy, played light fixture 2 good damping effects.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. lamp vibration damper, be used for being connected with the screw rod of light fixture and being fixedly arranged on an installing plate, it is characterized in that: this vibration absorber comprises outer vibration damping sheath and the interior vibration damping sheath of coaxial setting, described outer vibration damping sheath and interior vibration damping sheath are elastic component, the vibration damping sheath is fixedly arranged on the described installing plate in described, the screw rod of described light fixture is slidedly arranged in the described interior vibration damping sheath, the upper surface of vibration damping sheath is higher than the upper surface of described outer vibration damping sheath in described, be installed with a compressing tablet on the screw rod of described light fixture, described compressing tablet is located at the upper surface of described interior vibration damping sheath, offer an annular groove that circumferentially arranges in described on the lateral wall of vibration damping sheath, described installing plate is arranged in the described annular groove, and the lower end of described outer vibration damping sheath contacts with described installing plate, the lower end of vibration damping sheath is provided with a pad in described, described pad is sheathed on the described screw rod, described pad is fixed by a stop collar of being located on the described screw rod, described pad places described installing plate below, and is provided with spacing between described pad and the installing plate.
2. lamp vibration damper as claimed in claim 1, it is characterized in that: described outer vibration damping sheath and interior vibration damping sheath are hollow column structure.
3. lamp vibration damper as claimed in claim 1, it is characterized in that: described compressing tablet center offers a draw-in groove, and the nut that described draw-in groove and is located on the described screw rod engages.
4. lamp vibration damper as claimed in claim 1, it is characterized in that: offer blind hole on the described stop collar, be processed with internal thread in the described blind hole, the blind hole of described stop collar is connected with described screw flight.
5. lamp vibration damper as claimed in claim 4 is characterized in that: the madial wall of described outer vibration damping sheath is provided with a boss that circumferentially arranges, and described boss cooperates with the lateral wall of described interior vibration damping sheath.
6. lamp vibration damper as claimed in claim 1, it is characterized in that: described outer vibration damping sheath and interior vibration damping sheath are made by elastomeric material.
7. a light fixture comprises a screw rod, it is characterized in that: also comprise each described vibration absorber of claim 1～6, the screw rod of described light fixture is slidedly arranged in the interior vibration damping sheath of described vibration absorber.
8. light fixture as claimed in claim 7 is characterized in that: the vibration damping sheath is fixedlyed connected with an installing plate in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010102658 CN101761883B (en) | 2010-01-25 | 2010-01-25 | Light fitting vibration damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010102658 CN101761883B (en) | 2010-01-25 | 2010-01-25 | Light fitting vibration damping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101761883A CN101761883A (en) | 2010-06-30 |
| CN101761883B true CN101761883B (en) | 2013-10-09 |
Family
ID=42493197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010102658 Expired - Fee Related CN101761883B (en) | 2010-01-25 | 2010-01-25 | Light fitting vibration damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101761883B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595858A (en) * | 2013-10-30 | 2015-05-06 | 海洋王（东莞）照明科技有限公司 | Damping device and lamp with damping device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782222B (en) * | 2010-01-27 | 2012-05-23 | 海洋王照明科技股份有限公司 | Luminaire with limit pre-pressing structure |
| CN104421856B (en) * | 2013-08-30 | 2019-02-22 | 深圳市海洋王照明工程有限公司 | The damping frame structure and Projecting Lamp of Projecting Lamp |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140019A (en) * | 2006-09-04 | 2008-03-12 | 上海通运汽车科技有限公司 | Multilevel stiffness changing structure of spiral compression spring |
-
2010
- 2010-01-25 CN CN 201010102658 patent/CN101761883B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140019A (en) * | 2006-09-04 | 2008-03-12 | 上海通运汽车科技有限公司 | Multilevel stiffness changing structure of spiral compression spring |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2007-4917A 2007.01.11 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595858A (en) * | 2013-10-30 | 2015-05-06 | 海洋王（东莞）照明科技有限公司 | Damping device and lamp with damping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101761883A (en) | 2010-06-30 |
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Granted publication date: 20131009 Termination date: 20190125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |