CN104728783A - Vibration reduction support for strong reciprocating swing of lamp - Google Patents
Vibration reduction support for strong reciprocating swing of lamp Download PDFInfo
- Publication number
- CN104728783A CN104728783A CN201310724112.7A CN201310724112A CN104728783A CN 104728783 A CN104728783 A CN 104728783A CN 201310724112 A CN201310724112 A CN 201310724112A CN 104728783 A CN104728783 A CN 104728783A
- Authority
- CN
- China
- Prior art keywords
- damping means
- lower carriage
- light fixture
- strong
- support body
- 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.)
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Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 30
- 238000013016 damping Methods 0.000 claims description 92
- 230000035939 shock Effects 0.000 claims description 28
- 230000003313 weakening effect Effects 0.000 claims description 9
- 210000000056 organ Anatomy 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000282693 Cercopithecidae Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/04—Resilient mountings, e.g. shock absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
- F21V21/112—Fixing lighting devices to pendants
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of lamps and provides a vibration reduction support for strong reciprocating swing of the lamp. The vibration reduction support comprising an upper support body fixedly connected with an external installation part, a lower support body fixedly connected with the lamp and two sets of absorbers; the upper support body and the lower support body are rotatably connected through a rotating shaft, and the absorbers are arranged between the upper support body and the lower support body and are respectively located on two sides of the rotating shaft. When the external installation parts vibrates, the upper support body moves, the lower support body drives the lamp to move with the upper support body, the absorbers respectively located on the two sides of the rotating shaft and arranged between the upper support body and the lower support body absorb energy generated from vibration during swinging, swinging of the lower support body is reduced, damage to the lamp due to impact during swinging of the lower support body is alleviated, the lamp is ensured to be operated normally within a rated service life span, reliability of the lamp under the strong vibration environment is improved, service life of light sources of the lamp is prolonged, maintenance time and frequencies of the lamp are greatly shortened, and maintenance cost is saved.
Description
Technical field
The present invention relates to technical field of lamps, more particularly, relate to the strong reciprocally swinging damping frame of a kind of light fixture.
Background technology
At present, the bank bridge (be also called shore container crane, be used to the equipment loaded and unloaded the container on boats and ships on bank) of port and pier unloading area needs lifting high-power light-projecting lamp implement illumination, guarantee that unloading work is safe and efficient and carry out.Monkey on bank bridge tower frame is meeting faster reciprocal motion when handling goods operation, and suddenly start, suddenly stop, the high-power light-projecting lamp be now arranged under bank bridge tower frame and monkey will be subject to strong vibration and swing.For lamp light source infringement greatly, often 1 month right and left lamp light source will by vibration damage in this judder.Bank bridge is in high-altitude, and repair and replacement light source is very inconvenient, and must stop unloading operation in repair and replacement process, and therefore the light source of frequent breakage not only has a strong impact on bank bridge unloading operation efficiency, and maintenance cost is also higher.
Summary of the invention
The object of the present invention is to provide the strong reciprocally swinging damping frame of a kind of light fixture, the problem damaged because of vibration when being intended to solve in prior art the strong reciprocally swinging of the light fixture existed.
For solving the problems of the technologies described above, technical scheme of the present invention is: provide a kind of light fixture to move back and forth damping frame by force, be fixed between the light fixture of reciprocally swinging and outside installed part, comprise the upper bracket be fixedly connected with outside installed part, the lower carriage be fixedly connected with described light fixture, and two groups of shock absorbers; Described upper bracket is connected by an axis of rotation with described lower carriage, and described two groups of shock absorbers are located between described upper bracket and described lower carriage, and described two groups of shock absorbers lay respectively at the both sides of described rotating shaft.
Preferably, described two groups of shock absorbers are symmetrical arranged centered by described rotating shaft.
Preferably, each group of described shock absorber includes the first damping means and the second damping means, described first damping means is fixed on bottom described upper bracket, described second damping means is fixed on described lower carriage top, described first damping means and described second damping means just to and when described lower carriage is around described shaft swing described in the first damping means and described second damping means mutually compress weakening.
Particularly, described first damping means comprises the first base plate be fixed on described upper bracket and the first cushion pad be located on described first base plate; Described second damping means comprises the second base plate be fixed on described lower carriage and the second cushion pad be located on described second base plate.
Particularly, described first cushion pad has the hollow hole of through described first base plate, and the outer wall of described first cushion pad has organ type folding line.
Particularly, described second cushion pad is round table-like, and the inside of described round platform has the chamber of hollow.
Particularly, described first base plate is provided with one first pressing plate, and described first pressing plate is fixed on bottom described upper bracket by screw, and described first cushion pad passes by described first pressing plate; Described second base plate is provided with one second pressing plate, and described second pressing plate is fixed on described lower carriage top by screw, and described second cushion pad passes by described second pressing plate.
Or the described shock absorber of each group includes a damping means, this damping means is fixed on bottom described upper bracket and the top of described lower carriage compresses this damping means weakening when described lower carriage is around described shaft swing.
Or the described shock absorber of each group includes a damping means, and this damping means is fixed on described lower carriage top and this damping means presses on weakening bottom described upper bracket when described lower carriage is around described shaft swing.
Particularly, bottom described upper bracket, two opposite edges are respectively equipped with upper junction plate, described lower carriage top two opposite edges are respectively equipped with lower connecting plate, and described two upper junction plates stretch between described two lower connecting plates, and described rotating shaft is successively through each described lower connecting plate and each described upper junction plate.
In the present invention, when outside installed part is as the vibration of bank bridge, upper bracket moves thereupon, lower carriage swings thereupon, and drive light fixture to swing, lower carriage is in swing process, lay respectively at rotating shaft both sides and be located between upper bracket and lower carriage shock absorber vibration produce energy, reduce the swing of lower carriage, cut down the damage that impact when lower carriage swings brings light fixture, guarantee that light fixture normally works in rated life time volume, improve light fixture reliability under strong vibration environment, extend lamp light source service life, great shortening light fixture maintenance time and frequency of maintenance, save maintenance cost, improve the efficiency of bank bridge turn-round operation simultaneously.
Accompanying drawing explanation
Fig. 1 is light fixture strong reciprocally swinging damping frame that the embodiment of the present invention provides structural representation when being applied to light fixture;
Fig. 2 is the structural representation of the strong reciprocally swinging damping frame of light fixture that the embodiment of the present invention provides;
Fig. 3 is another angle views structural representation of the strong reciprocally swinging damping frame of light fixture that the embodiment of the present invention provides;
Fig. 4 is the exploded view of the strong reciprocally swinging damping frame of light fixture that the embodiment of the present invention provides;
Fig. 5 is the cut away view of the strong reciprocally swinging damping frame of light fixture that the embodiment of the present invention provides;
Fig. 6 is light fixture strong reciprocally swinging damping frame that the embodiment of the present invention provides schematic diagram when being applied to light fixture and swinging left;
Fig. 7 is light fixture strong reciprocally swinging damping frame that the embodiment of the present invention provides schematic diagram when being applied to light fixture and swinging to the right.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, 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 explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1, damping frame 100 provided by the invention, vibration damping when being mainly used in light fixture strong reciprocally swinging, it is fixed between the light fixture 200 of strong reciprocally swinging and outside installed part 300.Such as, between high-power light-projecting lamp and bank bridge.Certainly, other strong vibration occasion can be also applied to.The strong reciprocally swinging damping frame 100 of light fixture, comprises upper bracket 110, lower carriage 120 and two groups of shock absorbers 130.Wherein, upper bracket 110 is fixed on outside installed part 300, as bank bridge.Lower carriage 120 is for fixing light fixture 200.Rotating shaft 140 is adopted to be rotationally connected between upper bracket 110 and lower carriage 120.Two groups of shock absorbers 130 are located between upper bracket 110 and lower carriage 120, and lay respectively at the both sides of rotating shaft 140.When outside installed part 300 vibrates, as bank bridge move time, upper bracket 110 moves thereupon, now, lower carriage 120 swings thereupon, and drive light fixture 200 to swing, lower carriage 120 is in swing process, lay respectively at rotating shaft 140 both sides and the shock absorber 130 be located between upper bracket 110 and lower carriage 120 absorbs the energy vibrating and produce, reduce the swing of lower carriage 120, cut down the damage that impact when lower carriage 120 swings brings light fixture 200, guarantee that light fixture 200 normally works in rated life time volume, improve light fixture 200 reliability under strong vibration environment, extend light fixture 200 light source service life, great shortening light fixture 200 maintenance time and frequency of maintenance, save maintenance cost, improve the efficiency of bank bridge turn-round operation simultaneously.
With reference to Fig. 2, Fig. 3, upper bracket 110 and lower carriage 120 all adopt panel beating bending punch forming.Upper bracket 110 comprises upper mounted plate 111 and two upper junction plate 112, two upper junction plates 112 that bend downwards along upper mounted plate 111 liang of long marginal center are respectively provided with the first corresponding connecting hole 1121.Lower carriage 120 is identical with upper bracket 110 structure, can regard upper bracket 110 as and be inverted.Particularly, lower carriage 120 comprises bottom plate 121 and two lower connecting plate 122, two lower connecting plates 122 that upwards bend along bottom plate 121 liang of long marginal center are respectively respectively equipped with second connecting hole 1221 corresponding with the first connecting hole 1121.The width of bottom plate 121 is slightly wide compared with the width of upper mounted plate 111.Like this, when upper bracket 110 and lower carriage 120 are installed, two upper junction plates 112 of upper bracket 110 can stretch between two lower connecting plates 122, and rotating shaft 140 is rotationally connected by upper bracket 110 and lower carriage 120 through the second corresponding connecting hole 1221 and the first connecting hole 1121 successively by the side of lower carriage 120.And the upper mounted plate 111 of upper bracket 110 is provided with the first installing hole 1122, by the first installing hole 1122 and corresponding securing member such as bolt, upper bracket 110 is fixed on outside installed part 300 as on bank bridge.And the bottom plate 121 of lower carriage 120 is provided with the second installing hole 1222, the support that lower carriage 120 and light fixture 200 carry can be fixedly connected with by the second installing hole 1222 and corresponding securing member such as bolt.
In the present embodiment, rotating shaft 140 is positioned at the middle part of upper bracket 110 and lower carriage 120, and two groups of shock absorbers 130 are positioned at the both sides of rotating shaft 140.Preferably, two groups of shock absorbers 130 are symmetrical arranged centered by rotating shaft 140.Like this, when ensureing light fixture 200 with lower carriage 120 reciprocally swinging, damping effect is played in shock absorber 130 equilibrium of rotating shaft 140 both sides.
With reference to Fig. 4, Fig. 5, each group shock absorber 130 includes the first damping means 131 and the second damping means 132.First damping means 131 is fixed on bottom the upper mounted plate 111 of upper bracket 110, and the second damping means 132 is fixed on bottom plate 121 top of lower carriage 120, and the first damping means 131 and the second damping means 132 just right.When lower carriage 120 does not vertically occur to swing, between the first damping means 131 and the second damping means 132, there is gap.This gap is less, the arranging of gap value need meet when lower carriage 120 around the shaft 140 swing time the first damping means 131 and the second damping means 132 can contact with each other and compress absorbing vibration damping.
First damping means 131 and the second damping means 132 all adopt high elastic rubber material to make.First damping means 131 comprises the first base plate 1311 and is located at the first cushion pad 1312 on the first base plate 1311.Second damping means 132 comprises the second base plate 1321 and is located at the second cushion pad 1322 on the second base plate 1321.First base plate 1311 and the second base plate 1321 fixations, the first cushion pad 1312 and the second cushion pad 1322 play absorbing weakening effect.For ensureing good shock attenuation result, in the present embodiment, the first cushion pad 1312 is different from the structure of the second cushion pad 1322.Particularly, as shown in Figure 5, the first cushion pad 1312 has the hollow hole of through first base plate 1311, and the outer wall of the first cushion pad 1312 has organ type folding line.This organ type folding line, along folding line crimp when contributing to the first cushion pad 1312 pressurized.And the second cushion pad 1322 is in round table-like, and the inside of round platform has the chamber of hollow.Round platform inside is made hollow, makes its deformability better.First cushion pad 1312 is different from the second cushion pad 1322 structure, produces different deformation when mutually compressing, and absorbing effectiveness in vibration suppression is better, reaches and makes light fixture 200 vibration damping, the effect of protection light source.
In the present embodiment, the first base plate 1311 of the first damping means 131 is provided with one first pressing plate 150, first pressing plate 150 and is fixed on the upper mounted plate 111 of upper bracket 110 by screw, and the first cushion pad 1312 passes by the first pressing plate 150; Second base plate 1321 of the second damping means 132 is provided with one second pressing plate 160, second pressing plate 160 and is fixed on the bottom plate 121 of lower carriage 120 by screw, and the second cushion pad 1322 passes by the second pressing plate 160.First pressing plate 150 and the second pressing plate 160 all adopt stainless steel punch forming.Like this, be namely that the first damping means 131 and the second damping means 132 are fixed on upper bracket 110 with on lower carriage 120 respectively by the first pressing plate 150 and the second pressing plate 160.Certainly, the first damping means 131 and the second damping means 132 also can adopt alternate manner to fix.
It should be noted that, often organize shock absorber 130 in such scheme and include the optimal technical scheme that two damping means are the present embodiment.Except this scheme, often organize shock absorber 130 and also can only have a damping means, this damping means is fixed on bottom the upper mounted plate 111 of upper bracket 110, this damping means has enough height, with ensure when lower carriage 120 around the shaft 140 swing time bottom plate 121 top can compress this damping means and carry out absorbing weakening.Certainly, this damping means also can be fixed on lower carriage 120 top and when lower carriage 120 around the shaft 140 swing time this damping means press on upper bracket 110 upper mounted plate 111 bottom carry out absorbing weakening.
In the present embodiment, the vibration attenuation mechanism of damping frame 100 is: when outside installed part 300 vibrates, as bank bridge move fast time, upper bracket 110 moves thereupon, and lower carriage 120 drives light fixture 200 that strong reciprocally swinging occurs.When lower carriage 120 drives light fixture 200 to swing as shown in Figure 6 left, the first damping means 131 and the second damping means 132 that are arranged in one group of shock absorber 130 on the left of rotating shaft 140 contact with each other and compress, there is deformation in the first cushion pad 1312 and the second cushion pad 1322, absorb the energy that vibration produces, stop lower carriage 120 to continue to swing simultaneously left; When lower carriage 120 drives light fixture 200 to swing as shown in Figure 7 to the right, the first damping means 131 and the second damping means 132 that are arranged in one group of shock absorber 130 on the right side of rotating shaft 140 contact with each other and compress, there is deformation in the first cushion pad 1312 and the second cushion pad 1322, absorb the energy that vibration produces, stop lower carriage 120 to continue to swing simultaneously to the right.Like this, when light fixture 200 makes strong reciprocally swinging under lower carriage 120 drives, two groups of shock absorbers 130 of rotating shaft 140 both sides are relied on to play damping effect, the light source of the high-power light-projecting lamp tool 200 that effective solution has lifted on bank bridge damages frequent problem, reduce maintenance cost, also ensure that normally carrying out of bank bridge turn-round operation.
These are only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the strong reciprocally swinging damping frame of light fixture, is fixed between the light fixture of reciprocally swinging and outside installed part, it is characterized in that: comprise the upper bracket be fixedly connected with outside installed part, the lower carriage be fixedly connected with described light fixture, and two groups of shock absorbers; Described upper bracket is connected by an axis of rotation with described lower carriage, and described two groups of shock absorbers are located between described upper bracket and described lower carriage, and described two groups of shock absorbers lay respectively at the both sides of described rotating shaft.
2. the strong reciprocally swinging damping frame of light fixture as claimed in claim 1, is characterized in that: described two groups of shock absorbers are symmetrical arranged centered by described rotating shaft.
3. the strong reciprocally swinging damping frame of light fixture as claimed in claim 1, it is characterized in that: the described shock absorber of each group includes the first damping means and the second damping means, described first damping means is fixed on bottom described upper bracket, described second damping means is fixed on described lower carriage top, described first damping means and described second damping means just to and when described lower carriage is around described shaft swing described in the first damping means and described second damping means mutually compress weakening.
4. the strong reciprocally swinging damping frame of light fixture as claimed in claim 3, is characterized in that: described first damping means comprises the first base plate be fixed on described upper bracket and the first cushion pad be located on described first base plate; Described second damping means comprises the second base plate be fixed on described lower carriage and the second cushion pad be located on described second base plate.
5. the strong reciprocally swinging damping frame of light fixture as claimed in claim 4, is characterized in that: described first cushion pad has the hollow hole of through described first base plate, and the outer wall of described first cushion pad has organ type folding line.
6. the strong reciprocally swinging damping frame of light fixture as claimed in claim 4, is characterized in that: described second cushion pad is round table-like, and the inside of described round platform has the chamber of hollow.
7. the strong reciprocally swinging damping frame of light fixture as claimed in claim 4, it is characterized in that: described first base plate is provided with one first pressing plate, described first pressing plate is fixed on bottom described upper bracket by screw, and described first cushion pad passes by described first pressing plate; Described second base plate is provided with one second pressing plate, and described second pressing plate is fixed on described lower carriage top by screw, and described second cushion pad passes by described second pressing plate.
8. the strong reciprocally swinging damping frame of light fixture as claimed in claim 1, it is characterized in that: the described shock absorber of each group includes a damping means, this damping means is fixed on bottom described upper bracket and the top of described lower carriage compresses this damping means weakening when described lower carriage is around described shaft swing.
9. the strong reciprocally swinging damping frame of light fixture as claimed in claim 1, it is characterized in that: the described shock absorber of each group includes a damping means, and this damping means is fixed on described lower carriage top and this damping means presses on weakening bottom described upper bracket when described lower carriage is around described shaft swing.
10. the strong reciprocally swinging damping frame of light fixture as claimed in claim 1, it is characterized in that: bottom described upper bracket, two opposite edges are respectively equipped with upper junction plate, described lower carriage top two opposite edges are respectively equipped with lower connecting plate, described two upper junction plates stretch between described two lower connecting plates, and described rotating shaft is successively through each described lower connecting plate and each described upper junction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724112.7A CN104728783B (en) | 2013-12-24 | 2013-12-24 | The strong reciprocally swinging damping frame of lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310724112.7A CN104728783B (en) | 2013-12-24 | 2013-12-24 | The strong reciprocally swinging damping frame of lamps and lanterns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728783A true CN104728783A (en) | 2015-06-24 |
| CN104728783B CN104728783B (en) | 2019-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310724112.7A Active CN104728783B (en) | 2013-12-24 | 2013-12-24 | The strong reciprocally swinging damping frame of lamps and lanterns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728783B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188161A (en) * | 2018-11-15 | 2020-05-22 | 青岛海尔洗衣机有限公司 | Vibration reduction structure and washing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344477Y (en) * | 2008-12-12 | 2009-11-11 | 上海亚明灯泡厂有限公司 | Vibration damper for luminaries |
| CN101761882A (en) * | 2010-01-12 | 2010-06-30 | 海洋王照明科技股份有限公司 | Vibration damping device and light fixture with vibration damping device |
| CN201521584U (en) * | 2009-11-05 | 2010-07-07 | 钟活明 | Adaptive turning damper |
| CN201795440U (en) * | 2010-08-24 | 2011-04-13 | 山起重型机械股份公司 | Damping lamp support for crane |
| US20110096550A1 (en) * | 2009-10-27 | 2011-04-28 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Lamp with snow removing structure |
| CN103162205A (en) * | 2011-12-15 | 2013-06-19 | 海洋王照明科技股份有限公司 | Lamp |
-
2013
- 2013-12-24 CN CN201310724112.7A patent/CN104728783B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344477Y (en) * | 2008-12-12 | 2009-11-11 | 上海亚明灯泡厂有限公司 | Vibration damper for luminaries |
| US20110096550A1 (en) * | 2009-10-27 | 2011-04-28 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Lamp with snow removing structure |
| CN201521584U (en) * | 2009-11-05 | 2010-07-07 | 钟活明 | Adaptive turning damper |
| CN101761882A (en) * | 2010-01-12 | 2010-06-30 | 海洋王照明科技股份有限公司 | Vibration damping device and light fixture with vibration damping device |
| CN201795440U (en) * | 2010-08-24 | 2011-04-13 | 山起重型机械股份公司 | Damping lamp support for crane |
| CN103162205A (en) * | 2011-12-15 | 2013-06-19 | 海洋王照明科技股份有限公司 | Lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188161A (en) * | 2018-11-15 | 2020-05-22 | 青岛海尔洗衣机有限公司 | Vibration reduction structure and washing machine |
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| Publication number | Publication date |
|---|---|
| CN104728783B (en) | 2019-08-06 |
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