CN103883660A - Double-acting buffer - Google Patents
Double-acting buffer Download PDFInfo
- Publication number
- CN103883660A CN103883660A CN201410064126.5A CN201410064126A CN103883660A CN 103883660 A CN103883660 A CN 103883660A CN 201410064126 A CN201410064126 A CN 201410064126A CN 103883660 A CN103883660 A CN 103883660A
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- sleeve
- compression volume
- piston assembly
- door
- outlet
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- 230000006835 compression Effects 0.000 claims abstract description 107
- 238000007906 compression Methods 0.000 claims abstract description 107
- 238000013016 damping Methods 0.000 claims abstract description 30
- 208000026817 47,XYY syndrome Diseases 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 9
- 230000003139 buffering effect Effects 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a double-acting buffer. The double-acting buffer comprises a hollow sleeve and a push rod used in match with the sleeve, a guide support piece, a first piston component and a second piston component are arranged inside the sleeve, a passage formed by tube expansion is formed in the sleeve, one end of the push rod penetrates through the guide support piece to be fixedly connected with the first piston component, a compression space is formed between the first piston component and the head portion of the sleeve, a second compression space is formed between the first piston component and the second piston component, a third compression space is formed between the second piston component and the bottom of the sleeve and filled with compressed air, the first compression space and the second compression space are filled with hydraulic damping oil, and the second piston component is symmetrically arranged via double Y-shaped seal rings and can slide inside the sleeve to seal the second compression space and the third compression space in double directions. The double-acting buffer is simple and exquisite in design, material-saving and longer in service life.
Description
Technical field
The present invention relates to double-acting buffer technical field, the double-acting buffer of relate in particular to a kind of simplicity of design exquisiteness, saving material, increasing the service life.
Background technique
Buffering is closed door and can be seen everywhere, closes door such as warehouse, freezer door are buffering.Refrigerator is not also found pooling feature at present, and general inside refrigerator door all can be placed castor, if refrigerator door is closed with buffering, performance is better; And buffering closes door and can also prevent that door from producing and clashing in shutting, optimal situation is to allow door shut fast and not do not clash into.
The life problems of product, the life of product of prior art is many at 20,000 to 100,000 times, and adopts double-layer sleeve structure, and volume is large, and cost is high.
The double-acting buffer of therefore, need a kind of simplicity of design exquisiteness badly, saving material, increasing the service life.
Summary of the invention
The double-acting buffer of the object of this invention is to provide a kind of simplicity of design exquisiteness, saving material, increasing the service life.
To achieve these goals, technological scheme provided by the invention is: a kind of double-acting buffer is provided, the push rod that it comprises the sleeve of hollow and is used in conjunction with sleeve, sleeve inner is provided with guide support, first piston assembly, the second piston assembly, sleeve is provided with the passage that tube forms, one end of push rod is fixedly connected with first piston assembly through guide support, between first piston assembly and sleeve head, form the first compression volume, between first and second piston assembly, form the second compression volume, between the second piston assembly and the bottom of sleeve, form the 3rd compression volume, in the 3rd compression volume, it is pressurized gas, for keeping stability taking inert gas as good.The first compression volume and the second compression volume content are hydraulic damping oil, the second piston assembly is for adopting double-Y shaped seal ring to be arranged symmetrically with, and can slide in sleeve inner, the second compression volume and the 3rd compression volume are carried out to two way sealed, when door is subject to external force and opens, push rod drives the bottom direction motion of first piston assembly to sleeve, now first piston assembly one-way valve conducting, the hydraulic damping oil of the second compression volume sensible the first compression volume without resistance, door can be opened fast without additional friction in the situation that, the second piston assembly slightly moves the variation with balance and compensation the second compression volume to the bottom direction of sleeve, the 3rd compression volume is compressed, when external force removes, under the promotion of slight door closing force, pressurized gas in the 3rd compression volume is delivered to power first piston assembly and by push rod, door is closed by the second piston assembly, now the hydraulic damping oil of the first compression volume is by sensible the second compression volume fast of the expand tube passage on sleeve, door is not because have additional friction to start quick closedown from angle of release 90 degree under pressure, when door is closed to approximately 20 while spending, expand tube passage reduces, flowed friction increases gradually, the speed of door reduces gradually, both reached and can close the door fast, can cushion again the effect of closing the door.
The two ends of the second piston assembly are provided with collar or catch, and are coated with lubricant oil between the y-type seal ring of the second piston assembly and sleeve lining, and first and second compression volume injects hydraulic damping oil, the 3rd compression volume injection pressurized gas.
Radially distribute one or several passages, passage comprises initial working stage, the smooth working stage, and transition ending phase,
Passage can have different sectional shapes, and size can determine starting point according to usage requirement vertically, and end point, to meet different usage requirements.
In the second compression volume, being also provided with elastic element, conflicts in the bottom of elastic element one end and sleeve, and the other end and collar or catch are conflicted.
On push rod, be also provided with the passage for conducting the first compression volume and the 3rd compression volume, passage comprises for allowing entrance that hydraulic damping oil enters and for allowing the outlet of hydraulic damping oil ejection.
Outlet comprises the first outlet and two second outlet and the 3rd outlets that bore is smaller that relative aperture is larger, and channel setting is in push rod inside, the first outlet, the second outlet and the 3rd outlet are all arranged on the outer wall of push rod, the first outlet is arranged on than the second outlet, the position of the more close guide support of the 3rd outlet, in the time that push rod moves to the bottom direction away from sleeve, first the first outlet enters guide support inside and is blocked gradually, so that be blocked completely, and the second outlet, the 3rd outlet is also blocked while entering guide support inside gradually, so that be blocked completely.
The second outlet is identical with the bore of the 3rd outlet.
The first outlet, the second outlet and the 3rd outlet are arranged on the outer wall of push rod for being radially rehearsal.
Sleeve is positioned at the first compression volume position, along being provided with successively initial active section, smooth working section, changeover portion and transition section away from the bottom direction of sleeve, the external diameter of initial active section is quick increase structure, the external diameter of smooth working section remains unchanged, the external diameter of changeover portion is and reduces fast structure, and the external diameter of transition section is and slowly reduces structure.
Pressurized gas, taking inert gas as good, can be also air.
The present invention also provides another double-acting buffer, the push rod that comprises the sleeve of hollow and be used in conjunction with sleeve, sleeve inner is provided with guide support, piston assembly, in sleeve, be provided with the passage that tube forms, one end of push rod is fixedly connected with piston assembly through guide support, between piston assembly and sleeve head, form the first compression volume, between piston assembly and the bottom of sleeve, form the second compression volume, the first compression volume and the second compression volume content are hydraulic damping oil, in the second compression volume, there is spring, when door is subject to external force and opens, push rod drives the bottom direction motion of piston assembly to sleeve, now piston assembly one-way valve conducting, the hydraulic damping oil of the second compression volume sensible the first compression volume without resistance, door can be opened fast without additional friction in the situation that, now spring is compressed, when external force removes, under the promotion of slight door closing force, spring is delivered to power piston assembly and by push rod, door is closed.Now the hydraulic damping oil of the first compression volume is by sensible the second compression volume fast of the expand tube passage on sleeve, door is not because have additional friction to start quick closedown from angle of release 90 degree under pressure, when door is closed to approximately 20 while spending, expand tube passage reduces, flowed friction increases gradually, the speed that door is closed reduces gradually, both reaches and can close the door fast, can cushion again the effect of closing the door.
Compared with prior art, due in double-acting buffer of the present invention, sleeve has expand tube passage, inside is provided with guide support, first piston assembly, the second piston assembly, the second piston assembly is for adopting double-Y shaped seal ring to be arranged symmetrically with, can play the effect of two way sealed, and can slide in sleeve inner, the first compression volume and the second compression volume are carried out to two way sealed, utilize pressurized gas to promote the design of hydraulic damping oil, can not utilize elastic element, therefore can overcome the problem in elastic element life-span itself.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Brief description of the drawings
Fig. 1 is the plane structure schematic diagram of double-acting buffer of the present invention.
Fig. 2 is first embodiment's of double-acting buffer as shown in Figure 1 cross-sectional view.
Fig. 3 is second embodiment's of double-acting buffer as shown in Figure 1 cross-sectional view.
Fig. 4 is the 3rd embodiment's of double-acting buffer as shown in Figure 1 cross-sectional view.
Fig. 5 is the 4th embodiment's of double-acting buffer as shown in Figure 1 cross-sectional view.
Fig. 6 is the 5th embodiment's of double-acting buffer as shown in Figure 1 cross-sectional view.
Embodiment
With reference now to accompanying drawing, describe embodiments of the invention, in accompanying drawing, similarly element numbers represents similar element.As above, as Fig. 1, shown in 2, a kind of double-acting buffer DD100 is provided, the push rod 2 that it comprises the sleeve 1 of hollow and is used in conjunction with sleeve 1, sleeve 1 inside is provided with guide support 3, first piston assembly 4, the second piston assembly 5, in sleeve 1, be provided with the passage that tube (label 13～15 present positions) forms, one end of push rod 2 is fixedly connected with first piston assembly 4 through guide support 3, between first piston assembly 4 and sleeve 1 head, form the first compression volume 8, between first piston assembly 4 and the second piston assembly 5, form the second compression volume 7, between the second piston assembly 5 and the bottom of sleeve 1, form the 3rd compression volume 6, in the 3rd compression volume 6, it is pressurized gas, for keeping stability taking inert gas as good, the first compression volume 8 and the second compression volume 7 contents are hydraulic damping oil, the second piston assembly 5 is for adopting double-Y shaped seal ring 51 to be arranged symmetrically with, and can be in the inner slip of sleeve 1, the second compression volume 7 and the 3rd compression volume 6 are carried out to two way sealed, when door is subject to external force and opens, push rod 2 drives the bottom direction motion of first piston assembly 4 to sleeve 1, now first piston assembly 4 one-way valve conductings, the hydraulic damping oil of the second compression volume 7 sensible the first compression volume 8 without resistance, door can be opened fast without additional friction in the situation that, now the second piston assembly 5 moves the variation with balance and compensation top the second compression volume 7 to the bottom direction of sleeve 1 slightly, the 3rd compression volume 6 is compressed, when external force removes, under the promotion of slight door closing force, pressurized gas in the 3rd compression volume 6 is delivered to power first piston assembly 4 and by push rod 2, door is closed by the second piston assembly 5, the now hydraulic damping of the first compression volume 8 oil is by sensible the second compression volume 7 fast of the expand tube passage on sleeve 1, door is not because have additional friction to start quick closedown from angle of release 90 degree under pressure, when door is closed to approximately 20 degree, can be according to customer requirement by adjusting the channel shape of expand tube, sectional area, starting and ending point position, and transition passage shape, when the mode of cross section and length is adjusted this angle and lockup, expand tube passage reduces, flowed friction increases gradually, the speed that door is closed reduces gradually, both reached and can close the door fast, can cushion again the effect of closing the door.The even situation generation of bounce-back of door pause that can avoid general double-acting buffer to occur in the time that buffering starts to get involved by the design of transition passage.
The two ends of the second piston assembly 5 are provided with collar or catch 52, and are coated with lubricant oil between the y-type seal ring 51 of the second piston assembly 5 and sleeve 1 inwall, and the first compression volume 8 injects hydraulic damping oil, and the second compression volume 7 injects pressurized gas.
Outer wall around first piston assembly 4 is provided with annular groove in one week, is provided with piston ring 41 in annular groove.
In embodiment as shown in Figure 2, label 16,17,18 is respectively an open position, starts buffer position and door closed position.
In embodiment as shown in Figure 3,4, in the second compression volume 6, being also provided with elastic element 9, conflicts in the bottom of elastic element 9 one end and sleeve 1, and the other end and collar or catch 52 are conflicted.
In embodiment as shown in Figure 4, the second piston assembly 5 is for adopting single y-type seal ring 51, single y-type seal ring 51 seals the first compression volume 8, in the first compression volume 8, be provided with elastic element 9, conflict in the bottom of elastic element 9 one end and sleeve, the other end and collar or catch 52 are conflicted, and in this embodiment, in the second compression volume 7, y-type seal ring 51 is not set, and the second compression volume 7 does not adopt sealing setting yet.
In embodiment as shown in Figure 5, sleeve is provided with elastic element 9 in 1 inside, and be only provided with a piston assembly 5a and a compression volume 7a, on piston assembly 5a, be provided with piston ring 51a, elastic element 9 is arranged on compression volume 7a inside, between piston assembly 5a and the mouth position of sleeve 1, is also provided with stroke overdose space 8.
In embodiment as shown in Figure 6, be also provided with the path 10 with stroke overdose space 8 for conducting the first compression volume 8 on push rod 2, path 10 comprises for allowing entrance 11 that hydraulic damping oil enters and for allowing the outlet of hydraulic damping oil ejection.Outlet comprises the first outlet 11 and two the second outlet 12 and the 3rd outlets 13 that bore is smaller that relative aperture is larger, and channel setting is in push rod 2 inside, the first outlet 11, the second outlet 12 and the 3rd outlet 13 are all arranged on the outer wall of push rod 2, the first outlet 11 is arranged on than the second outlet 12, the position of the 3rd outlet 13 more close guide support 3, in the time that push rod 2 moves to the bottom direction away from sleeve 1, first the first outlet 11 enters guide support 3 inside and is blocked gradually, so that be blocked completely, and the second outlet 12, the 3rd outlet 13 is also blocked while entering guide support 3 inside gradually, so that be blocked completely.
The second outlet 12 is identical with the bore of the 3rd outlet 13.
The first outlet 11, the second outlet 12 and the 3rd outlet 13 are arranged on the outer wall of push rod 2 for being radially rehearsal.
Above in each embodiment, sleeve 1 is positioned at the first compression volume 8(compression volume 7a) position, along being provided with successively initial active section 12, smooth working section 13, changeover portion 14 and transition section 15 away from the bottom direction of sleeve 1, the external diameter of initial active section 12 is quick increase structure, the external diameter of smooth working section 13 remains unchanged, the external diameter of changeover portion 14 is and reduces fast structure, and the external diameter of transition section 15 is and slowly reduces structure.
In an other embodiment, as shown in Figure 5, the double-acting buffer 100 providing, the push rod 2 that comprises the sleeve 1 of hollow and be used in conjunction with sleeve 1, sleeve 1 inside is provided with guide support 3, piston assembly 5a, the passage that sleeve 1 wall has tube to form, one end of push rod 2 is fixedly connected with piston assembly 5a through guide support 3, between piston assembly 5a and sleeve 1 head, form the first compression volume 8, between the bottom of piston assembly 5a and sleeve 1, form the second compression volume 7a, the first compression volume 8 and the second compression volume 7a content are hydraulic damping oil, in the second compression volume 7a, there is spring 9, when door is subject to external force and opens, push rod 2 drives the bottom direction motion of piston assembly 5a to sleeve 1, now piston assembly 5a one-way valve conducting, the hydraulic damping oil of the second compression volume 7a sensible the first compression volume 8 without resistance, door can be opened fast without additional friction in the situation that, now spring 9 is compressed, when external force removes, under the promotion of slight door closing force, spring 9 is delivered to power piston assembly 5a and by push rod 2, door is closed.The now hydraulic damping of the first compression volume 8 oil is by sensible the second compression volume 7a fast of the expand tube passage on sleeve 1, door is not because have additional friction to start quick closedown from angle of release 90 degree under pressure, when door is closed to approximately 20 while spending, expand tube passage reduces, flowed friction increases gradually, the speed that door is closed reduces gradually, both reaches and can close the door fast, can cushion again the effect of closing the door.
Shown in Fig. 1～6, due in double-acting buffer 100 of the present invention, sleeve 1 inside is provided with guide support 3, first piston assembly 4, the second piston assembly 5, the second piston assembly 5 is for adopting double-Y shaped seal ring 51 to be arranged symmetrically with, can play the effect of two way sealed, and can be in the inner slip of sleeve 1, the first compression volume 8 and the second compression volume 7 are carried out to two way sealed, utilize pressurized gas to promote the design of hydraulic damping oil, can not utilize elastic element, the problem that therefore can overcome the elastic element life-span itself, can be used more than 500,000 times.
Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (10)
1. a double-acting buffer, it is characterized in that, the push rod that comprises the sleeve of hollow and be used in conjunction with sleeve, sleeve inner is provided with guide support, first piston assembly, the second piston assembly, in sleeve, be provided with the passage that tube forms, one end of push rod is fixedly connected with first piston assembly through guide support, between first piston assembly and sleeve head, form the first compression volume, between first and second piston assembly, form the second compression volume, between the second piston assembly and the bottom of sleeve, form the 3rd compression volume, in the 3rd compression volume, it is pressurized gas, the first compression volume and the second compression volume content are hydraulic damping oil, the second piston assembly is for adopting double-Y shaped seal ring to be arranged symmetrically with, and can slide in sleeve inner, the second compression volume and the 3rd compression volume are carried out to two way sealed, when door is subject to external force and opens, push rod drives the bottom direction motion of first piston assembly to sleeve, now first piston assembly one-way valve conducting, the hydraulic damping oil of the second compression volume sensible the first compression volume without resistance, door can be opened fast without additional friction in the situation that, the second piston assembly slightly moves the variation with balance and compensation the second compression volume to the bottom direction of sleeve, the 3rd compression volume is compressed, when external force removes, under the promotion of slight door closing force, pressurized gas in the 3rd compression volume is delivered to power first piston assembly and by push rod, door is closed by the second piston assembly, now the hydraulic damping oil of the first compression volume is by sensible the second compression volume fast of the expand tube passage on sleeve, door is not because have additional friction to start quick closedown from angle of release 90 degree under pressure, when door is closed to approximately 20 while spending, expand tube passage reduces, flowed friction increases gradually, the speed that door is closed reduces gradually, both reached and can close the door fast, can cushion again the effect of closing the door.
2. double-acting buffer as claimed in claim 1, it is characterized in that, the two ends of the second piston assembly are provided with collar or catch, and be coated with lubricant oil between the y-type seal ring of the second piston assembly and sleeve lining, and first and second compression volume injects hydraulic damping oil, the 3rd compression volume injects pressurized gas.
3. double-acting buffer as claimed in claim 1, it is characterized in that, sleeve is expand tube structure, radially distributes one or several passages, passage comprises initial working stage, the smooth working stage, transition ending phase, passage can have different sectional shapes, size, can determine starting point according to usage requirement vertically, end point, to meet different usage requirements.
4. double-acting buffer as claimed in claim 2, is characterized in that, is also provided with elastic element in the second compression volume, conflicts in the bottom of elastic element one end and sleeve, and the other end and collar or catch are conflicted.
5. double-acting buffer as claimed in claim 3, is characterized in that, is also provided with the passage for conducting the first compression volume and the second compression volume on push rod, and passage comprises for allowing entrance that hydraulic damping oil enters and for allowing the outlet of hydraulic damping oil ejection.
6. double-acting buffer as claimed in claim 5, it is characterized in that, outlet comprises the first outlet and two second outlet and the 3rd outlets that bore is smaller that relative aperture is larger, and channel setting is in push rod inside, the first outlet, the second outlet and the 3rd outlet are all arranged on the outer wall of push rod, the first outlet is arranged on than the second outlet, the position of the more close guide support of the 3rd outlet, in the time that push rod moves to the bottom direction away from sleeve, first the first outlet enters guide support inside and is blocked gradually, so that be blocked completely, and the second outlet, the 3rd outlet is also blocked while entering guide support inside gradually, so that be blocked completely.
7. double-acting buffer as claimed in claim 6, is characterized in that, the second outlet is identical with the bore of the 3rd outlet.
8. as the double-acting buffer of claim 6 or 7, it is characterized in that, the first outlet, the second outlet and the 3rd outlet are arranged on the outer wall of push rod for being radially rehearsal.
9. double-acting buffer as claimed in claim 1, it is characterized in that, sleeve is positioned at the first compression volume position, along being provided with successively initial active section, smooth working section, changeover portion and transition section away from the bottom direction of sleeve, the external diameter of initial active section is quick increase structure, the external diameter of smooth working section remains unchanged, and the external diameter of changeover portion is and reduces fast structure, and the external diameter of transition section is and slowly reduces structure.
10. a double-acting buffer, it is characterized in that, the push rod that comprises the sleeve of hollow and be used in conjunction with sleeve, sleeve inner is provided with guide support, piston assembly, in sleeve, be provided with the passage that tube forms, one end of push rod is fixedly connected with piston assembly through guide support, between piston assembly and sleeve head, form the first compression volume, between piston assembly and the bottom of sleeve, form the second compression volume, the first compression volume and the second compression volume content are hydraulic damping oil, in the second compression volume, there is spring, when door is subject to external force and opens, push rod drives the bottom direction motion of piston assembly to sleeve, now piston assembly one-way valve conducting, the hydraulic damping oil of the second compression volume sensible the first compression volume without resistance, door can be opened fast without additional friction in the situation that, now spring is compressed, when external force removes, under the promotion of slight door closing force, spring is delivered to power piston assembly and by push rod, door is closed.Now the hydraulic damping oil of the first compression volume is by sensible the second compression volume fast of the expand tube passage on sleeve, door is not because have additional friction to start quick closedown from angle of release 90 degree under pressure, when door is closed to approximately 20 while spending, expand tube passage reduces, flowed friction increases gradually, the speed that door is closed reduces gradually, both reaches and can close the door fast, can cushion again the effect of closing the door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410064126.5A CN103883660B (en) | 2014-02-25 | 2014-02-25 | Double-acting buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410064126.5A CN103883660B (en) | 2014-02-25 | 2014-02-25 | Double-acting buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883660A true CN103883660A (en) | 2014-06-25 |
| CN103883660B CN103883660B (en) | 2016-08-17 |
Family
ID=50952721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410064126.5A Expired - Fee Related CN103883660B (en) | 2014-02-25 | 2014-02-25 | Double-acting buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103883660B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675904A (en) * | 2015-02-06 | 2015-06-03 | 成都佳美嘉科技有限公司 | Buffer mechanism of dynamic compactor winding rope |
| CN113431862A (en) * | 2021-07-02 | 2021-09-24 | 安徽誉林汽车部件有限公司 | Automobile barrel type hydraulic shock absorber |
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| US4323224A (en) * | 1976-04-30 | 1982-04-06 | Stabilus Gmbh | Gas spring with means for impeding piston movement away from one terminal position |
| US4433759A (en) * | 1980-09-11 | 1984-02-28 | Nissan Motor Co. Ltd. | Gas spring |
| US4948103A (en) * | 1989-01-30 | 1990-08-14 | Illinois Tool Works, Inc. | Spring-loaded dampening actuator |
| US5887857A (en) * | 1995-10-09 | 1999-03-30 | Draftex Industries Limited | Gas spring |
| US6176475B1 (en) * | 1999-11-08 | 2001-01-23 | Illinois Tool Works Inc. | Air damper with adjustable air flow rate |
| CN1309250A (en) * | 2000-02-15 | 2001-08-22 | 许金鲁 | Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby |
| US20050269176A1 (en) * | 2003-12-26 | 2005-12-08 | Nifco Inc. | Shock absorbing device for moving body |
| US20070114103A1 (en) * | 2005-11-24 | 2007-05-24 | Stabilus Gmbh | Displacement element |
| CN101988552A (en) * | 2009-08-06 | 2011-03-23 | 凯美斯有限公司 | Buffering device capable of stabilizing pressure by damping |
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2014
- 2014-02-25 CN CN201410064126.5A patent/CN103883660B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4323224A (en) * | 1976-04-30 | 1982-04-06 | Stabilus Gmbh | Gas spring with means for impeding piston movement away from one terminal position |
| US4433759A (en) * | 1980-09-11 | 1984-02-28 | Nissan Motor Co. Ltd. | Gas spring |
| US4948103A (en) * | 1989-01-30 | 1990-08-14 | Illinois Tool Works, Inc. | Spring-loaded dampening actuator |
| US5887857A (en) * | 1995-10-09 | 1999-03-30 | Draftex Industries Limited | Gas spring |
| US6176475B1 (en) * | 1999-11-08 | 2001-01-23 | Illinois Tool Works Inc. | Air damper with adjustable air flow rate |
| CN1309250A (en) * | 2000-02-15 | 2001-08-22 | 许金鲁 | Hydraulic buffer technique without elasticity and linear damping increasement and bidirectional buffer thereby |
| US20050269176A1 (en) * | 2003-12-26 | 2005-12-08 | Nifco Inc. | Shock absorbing device for moving body |
| US20070114103A1 (en) * | 2005-11-24 | 2007-05-24 | Stabilus Gmbh | Displacement element |
| CN101988552A (en) * | 2009-08-06 | 2011-03-23 | 凯美斯有限公司 | Buffering device capable of stabilizing pressure by damping |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675904A (en) * | 2015-02-06 | 2015-06-03 | 成都佳美嘉科技有限公司 | Buffer mechanism of dynamic compactor winding rope |
| CN113431862A (en) * | 2021-07-02 | 2021-09-24 | 安徽誉林汽车部件有限公司 | Automobile barrel type hydraulic shock absorber |
| CN113431862B (en) * | 2021-07-02 | 2023-09-26 | 安徽誉林汽车部件有限公司 | Automobile cylinder type hydraulic shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103883660B (en) | 2016-08-17 |
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