CN109723623B - Vibration damper and nitrogen-oxygen separation device using same - Google Patents
Vibration damper and nitrogen-oxygen separation device using same Download PDFInfo
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- CN109723623B CN109723623B CN201811620780.4A CN201811620780A CN109723623B CN 109723623 B CN109723623 B CN 109723623B CN 201811620780 A CN201811620780 A CN 201811620780A CN 109723623 B CN109723623 B CN 109723623B
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- vibration damper
- foot
- compressor
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- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000013016 damping Methods 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 206010020649 Hyperkeratosis Diseases 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000002640 oxygen therapy Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The invention discloses a vibration damper and a nitrogen-oxygen separation device using the same, wherein the vibration damper comprises foot pads, springs and a support, the foot pads, the springs and the support are connected in series and assembled below a mechanism to be damped, the upper ends of the foot pads are inserted into foot holes of the mechanism to be damped, the springs penetrate through the support in the foot pads to form a suspension structure, and the mechanism to be damped is in a suspension state. The vibration damper adopts a special suspension structure design, has obvious vibration damping effect, and can effectively absorb and reduce the vibration of a mechanism to be damped so as to reduce the running noise; by adopting the technical scheme of the invention, the stable value of the maximum A weight calculating sound pressure level reaches about 42dB through testing, which is about 8dB lower than that of the oxygen generator on the market, and the noise reduction effect is very obvious. In addition, the suspension structure is designed, so that the installation is convenient, the structure is simple, and the assembly and maintenance efficiency is improved.
Description
Technical Field
The invention relates to a nitrogen-oxygen separation device, in particular to a vibration damper in the nitrogen-oxygen separation device.
Background
The oxygen-nitrogen separation device is a device for separating nitrogen and oxygen in air, and is divided into a nitrogen generator and an oxygen generator, wherein the oxygen generator is a device for providing high-concentration oxygen for human respiration. Along with the improvement of the living standard of people and the improvement of society, people have more cognition on the oxygenerator, the use requirement is also increasing, and the oxygenerator is widely used in hospitals and families, and is also used in industries such as aquaculture and the like. The oxygenerator is used for carrying out oxygen therapy on people suffering from respiratory diseases, cardiovascular diseases, cerebrovascular diseases, altitude reactions and altitude diseases, for people suffering from middle-aged and elderly people, students with excessive brains, pregnant women and the like, and people working and living in an anoxic environment, and can promote blood circulation, refresh the brain, eliminate fatigue and effectively improve working efficiency because of the fact that the oxygenerator is used for facilitating the use at any time in daily life or workplace, and is also a good life style.
At present, the oxygenerator system on the market has the advantages of complex structure, complex production and assembly, low efficiency, high cost and high noise. The maximum A weight sound pressure level (stable value or peak value) of the oxygen concentrator is not more than 60dB under normal use conditions, the noise of an oxygen generator on the market is basically about 50dB, and when the oxygen generator is placed indoors at night, the noise during working can be annoying, the sleeping is influenced, and the oxygen therapy effect is seriously influenced, so that the reduction of the noise of the oxygen generator becomes an urgent need for improving the product quality and enhancing the market competitiveness.
The noise source of oxygenerator mainly includes air intake noise, exhaust noise, noise and compressor noise when the switching valve switches, mainly utilizes porous sound absorbing material to reduce noise on the oxygenerator at present, fixes sound absorbing material on the inner wall of air current passageway or arranges in the pipeline according to certain mode, constitutes a damping muffler, and damping muffler is effectual to middle-high frequency amortization, and is relatively poor to low frequency amortization effect.
Chinese patent ZL201120180708.1 discloses a compressor device and oxygenerator with good vibration-proof effect, which comprises a compressor and a base, and further comprises an upper cover plate, a first rubber gasket, a spring, a second rubber gasket, and a positioning rod (as shown in fig. 5, in a general fixing method of the compressor, the positioning rod 25 sequentially passes through a rubber pad B24, a foot spring 23 and a rubber pad a22 from below a hole on the base 26 and is then fixed on the foot 211 of the compressor, and the positioning rod 25 and the hole on the base 26 are in clearance fit, and the clearance is larger than the vibration stroke of the existing compressor 21). In addition, the existing fixing modes of the compressor without the upper cover plate are adopted in the market, and the fixing modes are produced and assembled by adopting a positioning rod mode, so that the compressor is complex, the efficiency is low, the maintenance and the replacement of the compressor are complex, and the vibration and noise reduction effects are general.
Therefore, it is necessary to improve the structural composition of the compressor of the oxygen generator so as to make the overall assembly of the compressor progress toward refinement and simplification, and especially to develop in the direction of low noise.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a vibration damping device which forms and optimizes a suspension form of a mechanism to be damped, improves assembly and maintenance efficiency and reduces noise.
The invention also aims to provide a nitrogen-oxygen separation device which uses the vibration reduction device.
The technical scheme adopted for solving the technical problems is as follows:
The damping device comprises a foot pad, a spring and a support, wherein the foot pad, the spring and the support are connected in series and assembled and connected below the damping mechanism, the upper end of the foot pad is inserted into a foot hole of the damping mechanism, the spring penetrates through the support, a suspension structure is formed, and the damping mechanism is in a suspension state.
Further, the callus on the sole is including top cap, recess, the structure of expanding, columnar structure and the arch that from the top down set up in proper order, and columnar structure runs through inside the callus on the sole and according to its axis extension, columnar structure's tip is equipped with the arch, be equipped with the annular chamber between the structure of expanding and the columnar structure, the spring housing is established columnar structure is last and the joint is in this annular intracavity.
Further, the foot holes are formed in the feet of the mechanism to be damped, and the feet of the mechanism to be damped are located below two sides of the mechanism to be damped.
Further, the foot of the mechanism to be damped comprises an extending part, a connecting part and a bending part which are sequentially connected, and the extending part, the connecting part and the bending part form a hole structure, namely the foot hole, the extending part is fixedly connected with the main body of the mechanism to be damped, the bending part is sleeved in the groove, and the bending part and the groove are correspondingly matched; or the foot holes are hollowed holes arranged on the feet of the mechanism to be damped.
Further, the number of the feet of the mechanism to be damped is 4, namely, each side of the mechanism to be damped is provided with 2 feet.
Further, the support frame is of a handle-shaped structure, and two ends of the support frame are provided with cavities and are in clamping fit with the protrusions.
Further, the foot pad, the springs and the support are made of two or three different materials so as to absorb and reduce vibration noise in different frequency bands.
A nitrogen-oxygen separation device, wherein the shell of the nitrogen-oxygen separation device is provided with any one of the vibration reduction devices.
Further, an accommodating cavity of the oxygen generating component is arranged in the shell of the nitrogen-oxygen separation device, a fixing groove or a fixing rib is arranged in the accommodating cavity, and the vibration damper is limited through the fixing groove or the fixing rib.
Still further, the casing includes first minute casing and second minute casing, and the two is assembled and is formed complete casing, corresponds on first minute casing and the second minute casing to match and be equipped with a plurality of baffle pairs, and a plurality of baffle pairs interconnect forms a semi-closed cavity that has the open-ended from top to bottom, be equipped with in the semi-closed cavity fixed slot or fixed muscle, vibration damper passes through fixed slot or fixed muscle are spacing.
The invention has the following beneficial effects:
(1) The vibration damper adopts a special suspension structure design, has obvious vibration damping effect, and can effectively absorb and reduce the vibration of a mechanism (such as a compressor) to be damped so as to reduce the running noise;
By adopting the technical scheme of the invention, the stable value of the maximum A weight calculating sound pressure level reaches about 42dB through testing, which is about 8dB lower than that of the oxygen generator on the market, and the noise reduction effect is very obvious.
(2) In addition, the suspension structure design of the vibration damper is convenient to install, simple in structure and capable of improving assembly and maintenance efficiency.
Drawings
FIG. 1 is a block diagram of a compressor;
FIG. 2 is a compressor block diagram from another perspective;
fig. 3 is a schematic view of a suspension structure of a compressor: (a) a side view; (b) A-A cross-sectional view; (c) a perspective view;
FIG. 4 is an assembly view of a vibration reduction compressor within a nitrogen-oxygen separation device;
FIG. 5 is a schematic view of a conventional fixing mode of a compressor mentioned in the background art;
wherein 11-the first sub-housing; 20-a compressor; 30-an adsorption tower; 1100-a first caster; 1101-atomizing joint; 1102-oxygen out joint; 1107—a first air outlet; 1108-a first air inlet; 1109-separator 1; 1110-a first compressor rack securing slot; 1111-separator 2; 1112-separator 3; 1113-a second fan fixing groove; 1118-separator 4; 200-compressor feet; 201-foot pads, 2011-top caps, 2012-grooves, 2013-expansion structures, 2014-columnar structures, 2015-protrusions; 202-a spring; 203-a stent; 204-a safety valve; 205-compressor outlet fitting; 206-a fan; 207-line 1; 208-line 2; 209-line 3; 210-compressor inlet fitting; 301-switching valve; 303-an air inlet gland; 305, a molecular sieve cylinder; 308-a pressure regulating valve; 309-a gas outlet gland; 400-control panel; 401-detecting plate; 402-a display panel; 403-a key sheet;
21-an existing compressor; 211-compressor feet; 22-rubber pad A; 23-foot springs; 24-rubber pad B; 25-positioning rods; 26-base.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The vibration damping mechanism to be damped of the present embodiment is a compressor 20, referring to fig. 1 to 4, the vibration damping device of the present embodiment includes a foot pad 201, a spring 202 and a bracket 203, the foot pad 201, the spring 202 and the bracket 203 are connected in series and assembled under the compressor 20, wherein the upper end of the foot pad 201 is inserted into holes of the compressor feet 200 at two sides of the compressor 20, the spring 202 is sleeved inside the foot pad 201 and penetrates through the bracket 203 to form a suspension structure, so that the compressor 20 is in a suspension state, and compared with the prior art (as shown in fig. 5), the vibration damping device of the present embodiment has the advantages of simple structure, high assembly efficiency and reduced maintenance and replacement time of the compressor 20.
As shown in fig. 1 and 2, the compressor 20 is provided with a compressor outlet joint 205, a compressor inlet joint 210, connecting pipes (pipe 1207, pipe 2 208, pipe 3 209), a relief valve 204, a fan 206, and a compressor foot 200.
The compressor outlet joint 205 is connected with the inlet joint of the adsorption tower in the oxygenerator through a pipeline 1 and a pipeline 2. The compressor inlet connector 210 is connected with an inlet filter tube on the oxygenerator housing. The fan 206 is located above the compressor 20.
The compressor feet 200 are located below both sides of the compressor 20. There are preferably 4 compressor feet 200, 2 on each side of the compressor 20. Preferably, the compressor foot 200 is integrally manufactured with the compressor 20.
The compressor foot 200 is provided with a protruding hook-shaped structure, the hook-shaped structure comprises an extending part, a connecting part and a bending part which are sequentially connected, the extending part, the connecting part and the bending part form a hole structure, namely a hole of the compressor foot 200, the extending part is fixedly connected with the compressor (preferably integrally formed), the bending part is sleeved at the upper end of the foot pad 201, and the bending part and a groove 2012 at the upper end of the foot pad 201 are correspondingly matched.
Or the holes of the compressor foot 200 are hollowed holes arranged on the foot of the compressor 20.
The callus on sole 201 is established to "piece of cloth" style of calligraphy structure, and callus on sole 201 is including top cap 2011, recess 2012, the expansion structure 2013, columnar structure 2014 and the protruding 2015 that set up from the top down in proper order, and columnar structure runs through inside callus on the sole 201 and extends according to its axis, and columnar structure's tip is equipped with protruding 2015, is equipped with the annular chamber between expansion structure 2013 and the columnar structure 2014, and the last joint of columnar structure is established to spring 202 cover and is in this annular chamber. Preferably, the top cap 2011, the groove 2012, the enlarged structure 2013, the columnar structure 2014, and the boss 2015 are integrally formed.
The bracket 203 is in a handle structure with round ends, and the two ends are provided with cavities and the protrusions 2015 in clamping fit.
The foot pad 201, the spring 202 and the bracket 203 are made of two or three materials (density) with different materials, so as to absorb and reduce vibration of different frequency bands when the compressor 20 works, and effectively reduce noise.
The footpad 201 is made of a material having a certain elasticity and hardness, such as rubber. The spring 202 is made of metal, and the bracket 203 is made of ABS plastic. The flexible connection between the foot pad 201 and the compressor foot 200, and the flexible connection between the foot pad 201 and the bracket 203 is realized through the spring 202.
The casing in the nitrogen oxygen separator includes first minute casing 11 and second minute casing, and first minute casing 11 and second minute casing are located the front and back both sides of casing respectively, and the shape symmetry of two sets up, and two minute casings are assembled and are formed a complete casing, and first minute casing 11 and second minute casing are assembled the back inside and are formed the oxygen subassembly holding chamber, and all oxygen subassemblies are all placed in the inside holding intracavity of casing.
The fan fixed slot and the compressor bracket fixed slot are correspondingly matched and arranged in the first sub-shell 11 and the second sub-shell, and because the first sub-shell 11 and the second sub-shell are assembled, a limiting structure is respectively formed between the fan fixed slot and the compressor bracket fixed slot in the first sub-shell 11 and the second sub-shell and is used for limiting and fixing the fan 206 and the compressor bracket 203, so that installation parts can be saved, the device is quite convenient, and the limiting effect is good.
The compressor 20 is disposed in the accommodating cavity in the casing, and the fan fixing groove corresponding to the fan 206 on the compressor 20, the compressor bracket fixing groove corresponding to the bracket 203 below the compressor, and the accommodating cavity form a certain limiting effect on the compressor 20 in multiple directions.
Specifically, the fan 206 is inserted into the fan fixing groove 1113 of the first sub-housing 11 in the direction of arrow K shown in fig. 4, and the fan 206 is caught in the other fan fixing groove when the second sub-housing is assembled. Two foot pads 201 and two springs 202 are arranged on the support 203, two supports 203 are arranged below the compressor 20, one end of each support 203 is inserted into a fixing groove 1110 of the compressor support according to the arrow K direction in fig. 4, and the other end of the support 203 is clamped into the fixing groove of the other compressor support when the second sub-shell is assembled.
After the first sub-housing 11 and the second sub-housing are assembled, the partition board 1 1109, the partition board 2 1111, the partition board 3 1112 and the partition board corresponding to each other on the first sub-housing 11 form a cavity with openings at the upper and lower parts (i.e. a semi-closed cavity with openings at the upper and lower parts), the compressor 20 is assembled in the semi-closed cavity with openings at the upper and lower parts, and five limits with a certain gap are arranged at the front, back, left and right parts and the upper part of the semi-closed cavity facing the compressor 20, and the support 203 is arranged below the semi-closed cavity, so that the compressor 20 is in a suspension state, and vibration with different frequencies during the operation of the compressor 20 is effectively absorbed and reduced, and noise is effectively reduced.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a damping device, its characterized in that, damping device includes callus on the sole, spring and support, callus on the sole, spring and support three concatenate the assembly connection in the below of waiting damping mechanism, wherein the callus on the sole upper end is inserted in waiting damping mechanism's foot hole, and the callus on the sole is inside to be worn to be overlapped the spring and to pass the support forms suspended structure, makes waiting damping mechanism is in suspended state, the callus on the sole is including top cap, recess, the structure that expands, columnar structure and the arch that from top to bottom set up in proper order, columnar structure runs through inside the callus on the sole and extends according to its axis, columnar structure's tip is equipped with the arch, be equipped with the annular chamber between structure and the columnar structure, the spring housing is established on the columnar structure and the joint is in this annular chamber, the callus on the sole upper end includes the top cap recess with the structure that expands, the recess inserts wait damping mechanism's foot hole.
2. A vibration damper according to claim 1, wherein said foot holes are provided in the feet of said mechanism to be damped, the feet of said mechanism to be damped being located below both sides of said mechanism to be damped.
3. The vibration damper according to claim 2, wherein the foot of the mechanism to be damped comprises an extending part, a connecting part and a bending part which are sequentially connected, wherein the extending part is fixedly connected with the main body of the mechanism to be damped, the bending part is sleeved in the groove, and the bending part and the groove are correspondingly matched; or the foot holes are hollowed holes arranged on the feet of the mechanism to be damped.
4. A vibration damper according to claim 2, wherein the number of feet of the mechanism to be damped is 4, i.e. 2 feet per side of the mechanism to be damped.
5. A vibration damper according to claim 1, wherein said support is of a handle-like configuration having cavities at opposite ends thereof for snap-fit engagement with said protrusions.
6. A vibration damper according to any one of claims 1 to 5, wherein the foot pad, the spring and the bracket are made of two or three different materials to absorb and reduce vibration noise in different frequency bands.
7. A nitrogen-oxygen separation device, characterized in that a vibration damper according to any one of claims 1-6 is provided on the housing of the nitrogen-oxygen separation device.
8. The nitrogen-oxygen separation device as recited in claim 7, wherein a housing cavity of the oxygen generating component is arranged in a housing of the nitrogen-oxygen separation device, a fixing groove or a fixing rib is arranged in the housing cavity, and the vibration damper is limited by the fixing groove or the fixing rib.
9. The nitrogen-oxygen separation device as recited in claim 8 wherein the housing comprises a first sub-housing and a second sub-housing which are assembled to form a complete housing, wherein a plurality of baffle pairs are correspondingly and matingly arranged on the first sub-housing and the second sub-housing, the baffle pairs are mutually connected to form a semi-closed chamber with openings at the upper and lower parts, the semi-closed chamber is internally provided with the fixing groove or the fixing rib, and the vibration reduction device is limited by the fixing groove or the fixing rib.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620780.4A CN109723623B (en) | 2018-12-28 | 2018-12-28 | Vibration damper and nitrogen-oxygen separation device using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811620780.4A CN109723623B (en) | 2018-12-28 | 2018-12-28 | Vibration damper and nitrogen-oxygen separation device using same |
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| Publication Number | Publication Date |
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| CN109723623A CN109723623A (en) | 2019-05-07 |
| CN109723623B true CN109723623B (en) | 2024-05-28 |
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301035A (en) * | 2003-03-31 | 2004-10-28 | Sanyo Electric Co Ltd | Vibration control device for compressor |
| JP2007132260A (en) * | 2005-11-10 | 2007-05-31 | Matsushita Electric Ind Co Ltd | Hermetic compressor |
| JP2009243539A (en) * | 2008-03-29 | 2009-10-22 | Tokai Rubber Ind Ltd | Vibration damping device |
| JP2010281425A (en) * | 2009-06-08 | 2010-12-16 | Polymatech Co Ltd | Viscous fluid-sealed damper |
| CN201952643U (en) * | 2010-12-20 | 2011-08-31 | 苏州三星电子有限公司 | Spring damper for wave-wheel washing machine |
| CN102758759A (en) * | 2012-07-27 | 2012-10-31 | 奇瑞汽车股份有限公司 | Suspension system of air compressor |
| CN103727006A (en) * | 2013-12-13 | 2014-04-16 | 科迈（常州）电子有限公司 | Shock-absorption and noise-reduction device of domestic oxygenerator |
| JP2014105793A (en) * | 2012-11-28 | 2014-06-09 | Mitsubishi Motors Corp | Suspension device |
| CN204647103U (en) * | 2015-04-23 | 2015-09-16 | 诸暨市诚翔机械有限公司 | A kind of coil tension spring device |
| CN204716850U (en) * | 2015-06-11 | 2015-10-21 | 西安航空制动科技有限公司 | A kind of relief spring pre-tightening apparatus |
| JP2015189284A (en) * | 2014-03-27 | 2015-11-02 | 豊田合成株式会社 | steering wheel |
| CN105275781A (en) * | 2015-03-06 | 2016-01-27 | 合肥美的电冰箱有限公司 | Fixing structure of compressor and refrigerator with fixing structure |
| CN205096031U (en) * | 2015-10-15 | 2016-03-23 | 江苏鱼跃信息***有限公司 | Hush air atomizer |
| JP2016137092A (en) * | 2015-01-28 | 2016-08-04 | 日立アプライアンス株式会社 | Washing machine |
| CN106051011A (en) * | 2016-07-14 | 2016-10-26 | 柳州长虹机器制造公司 | Brake master cylinder spring assembly and assembling method thereof |
| CN206072187U (en) * | 2016-08-31 | 2017-04-05 | 江苏朗域电力科技有限公司 | A kind of damping device of scalable compression |
| CN107035652A (en) * | 2016-12-02 | 2017-08-11 | 青岛海尔股份有限公司 | It is evacuated pump group part and refrigerating device |
| CN206723151U (en) * | 2017-01-19 | 2017-12-08 | 长沙博格泵业机械有限公司 | A kind of modified form damping water pump |
| CN108085928A (en) * | 2016-11-22 | 2018-05-29 | 苏州三星电子有限公司 | A kind of buffer gear of washing machine sunpender and washing machine sunpender |
| CN210106096U (en) * | 2018-12-28 | 2020-02-21 | 江苏鱼跃医疗设备股份有限公司 | Vibration damper and nitrogen-oxygen separation device using same |
-
2018
- 2018-12-28 CN CN201811620780.4A patent/CN109723623B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004301035A (en) * | 2003-03-31 | 2004-10-28 | Sanyo Electric Co Ltd | Vibration control device for compressor |
| JP2007132260A (en) * | 2005-11-10 | 2007-05-31 | Matsushita Electric Ind Co Ltd | Hermetic compressor |
| JP2009243539A (en) * | 2008-03-29 | 2009-10-22 | Tokai Rubber Ind Ltd | Vibration damping device |
| JP2010281425A (en) * | 2009-06-08 | 2010-12-16 | Polymatech Co Ltd | Viscous fluid-sealed damper |
| CN201952643U (en) * | 2010-12-20 | 2011-08-31 | 苏州三星电子有限公司 | Spring damper for wave-wheel washing machine |
| CN102758759A (en) * | 2012-07-27 | 2012-10-31 | 奇瑞汽车股份有限公司 | Suspension system of air compressor |
| JP2014105793A (en) * | 2012-11-28 | 2014-06-09 | Mitsubishi Motors Corp | Suspension device |
| CN103727006A (en) * | 2013-12-13 | 2014-04-16 | 科迈（常州）电子有限公司 | Shock-absorption and noise-reduction device of domestic oxygenerator |
| JP2015189284A (en) * | 2014-03-27 | 2015-11-02 | 豊田合成株式会社 | steering wheel |
| JP2016137092A (en) * | 2015-01-28 | 2016-08-04 | 日立アプライアンス株式会社 | Washing machine |
| CN105275781A (en) * | 2015-03-06 | 2016-01-27 | 合肥美的电冰箱有限公司 | Fixing structure of compressor and refrigerator with fixing structure |
| CN204647103U (en) * | 2015-04-23 | 2015-09-16 | 诸暨市诚翔机械有限公司 | A kind of coil tension spring device |
| CN204716850U (en) * | 2015-06-11 | 2015-10-21 | 西安航空制动科技有限公司 | A kind of relief spring pre-tightening apparatus |
| CN205096031U (en) * | 2015-10-15 | 2016-03-23 | 江苏鱼跃信息***有限公司 | Hush air atomizer |
| CN106051011A (en) * | 2016-07-14 | 2016-10-26 | 柳州长虹机器制造公司 | Brake master cylinder spring assembly and assembling method thereof |
| CN206072187U (en) * | 2016-08-31 | 2017-04-05 | 江苏朗域电力科技有限公司 | A kind of damping device of scalable compression |
| CN108085928A (en) * | 2016-11-22 | 2018-05-29 | 苏州三星电子有限公司 | A kind of buffer gear of washing machine sunpender and washing machine sunpender |
| CN107035652A (en) * | 2016-12-02 | 2017-08-11 | 青岛海尔股份有限公司 | It is evacuated pump group part and refrigerating device |
| CN206723151U (en) * | 2017-01-19 | 2017-12-08 | 长沙博格泵业机械有限公司 | A kind of modified form damping water pump |
| CN210106096U (en) * | 2018-12-28 | 2020-02-21 | 江苏鱼跃医疗设备股份有限公司 | Vibration damper and nitrogen-oxygen separation device using same |
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| CN109723623A (en) | 2019-05-07 |
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