CN201027880Y - Compressed gas spring - Google Patents
Compressed gas spring Download PDFInfo
- Publication number
- CN201027880Y CN201027880Y CNU2007200376528U CN200720037652U CN201027880Y CN 201027880 Y CN201027880 Y CN 201027880Y CN U2007200376528 U CNU2007200376528 U CN U2007200376528U CN 200720037652 U CN200720037652 U CN 200720037652U CN 201027880 Y CN201027880 Y CN 201027880Y
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- China
- Prior art keywords
- gas spring
- piston rod
- cylinder body
- utility
- model
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- 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.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model provides a pressurized gas spring and comprises a cylinder body, a piston, a lower end enclosure, and a piston rod passing through an upper end enclosure. The piston rod is a hollow pipe and is provided inside with at least more than one gas spring module. The gas spring modules respectively comprise a piston, a hollow piston rod and an upper end enclosure. The utility model consists of a plurality of gas springs, namely the hollow piston rod of a first gas spring is used as the cylinder body of a second gas spring, the hollow piston rod of the second gas spring is used as the cylinder body of a third gas spring by parity of reasoning. Every gas spring module can be independently stretched or compressed; thereby the length of the piston rod is increased exponentially and is longer than one half the extension length. Under the condition of a certain extension length, the needed installation length of the compression gas spring of the utility model is shorter, and the application range is enlarged. The utility model is simple in structure and convenient in installation, and is widely used for the opening and closing, lifting or supporting of full-open type back doors of vehicle, luggage bin gates, medical appliances, furniture, the covers of mechanical equipment, etc.
Description
Technical field
The utility model relates to a kind of air spring, relate in particular to a kind of full-open type back door that is used for vehicle, luggage door, engine compartment cover, medical apparatus, furniture, machinery aspects such as cover, instrument control panel unlatching and closed, lifting or support the pressurized gas spring of usefulness.
Background technique
Present widely used pressurized gas spring is to utilize the compressibility of gas to store and the principle that releases energy is produced mostly.YQ type pressurized gas spring as shown in Figure 1 mainly is made of cylinder body 1 ', piston 2 ', lower seal head 5 ', the piston rod 3 ' that passes upper cover 4 '-1.This traditional air spring is owing to be subjected to the restriction of cylinder body length, and its piston rod stroke is less than 1/2nd spread length.Under the certain situation of spread length, air spring installing space length is short for requiring, stroke must be greater than the use occasion of 1/2nd spread lengths, and existing known pressurized gas spring often can not satisfy above-mentioned requirements, thereby causes very big inconvenience to the user.
The model utility content
The technical problems to be solved in the utility model provides a kind of piston rod stroke greater than 1/2nd spread lengths and pressurized gas spring simple in structure.
For solving the problems of the technologies described above, a kind of pressurized gas spring of the present utility model, comprise cylinder body, piston, lower seal head, pass the piston rod of upper cover, its improvement is: described piston rod be hollow tube and in be provided with at least one joint with last gas spring assembly, described gas spring assembly comprises piston, hollow piston rod and upper cover respectively.
As a kind of improvement of the present utility model, the bottom Joint of described lower seal head and described cylinder body.
As another kind of improvement the of the present utility model, described lower seal head engages by the annular convex shoulder that is provided with on the annular groove that is provided with on its excircle and the described cylinder body inner circumference and is fixed together, and also is provided with seal ring at least at described lower seal head between described cylinder body.
Adopt after such more piece air spring structure, it is the hollow piston rod of the first segment air spring cylinder body as the second solar term spring, with the hollow piston rod of the second solar term spring cylinder body as the 3rd solar term spring, by that analogy.At least one joint promptly was set with last gas spring assembly in the hollow piston rod of first segment air spring, and every solar term spring assembly can stretch or compress independently, therefore, the piston rod stroke is increased exponentially, makes the piston rod stroke greater than 1/2nd spread lengths.Under the certain situation of spread length, the required length of installation of this air spring is shorter, has enlarged the using scope of air spring, and it is simple in structure, easy for installation.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of known pressurized gas spring.
Fig. 2 is the structural representation of a kind of pressurized gas spring of the utility model.
Fig. 3 is the structural representation of the another kind of pressurized gas spring of the utility model.
Fig. 4 is the structural representation of the utility model pressurized gas spring under compressive state.
Fig. 5 is the structural representation of the utility model pressurized gas spring under extended configuration.
Embodiment
Referring to Fig. 1 to Fig. 5, a kind of pressurized gas spring, comprise cylinder body 1, piston 2, lower seal head 5, pass the piston rod 3 of upper cover 4-1, it is characterized in that: described piston rod 3 for hollow tube and in be provided with at least one joint with last gas spring assembly, described gas spring assembly comprise respectively piston 2-1,2-2 ..., hollow piston rod 3-1,3-2 ... and upper cover 4-2,4-3 ....
Referring to Fig. 2, described lower seal head 5 can be fixed together by welding or other known approaches with described cylinder body 1 bottom.
Referring to Fig. 3, described lower seal head 5 engages by the annular convex shoulder 1-1 that is provided with on the annular groove 5-1 that is provided with on its excircle and described cylinder body 1 inner circumference and is fixed together, and also is provided with seal ring 8 at least at described lower seal head 5 between described cylinder body 1.Described upper cover 4-1,4-2,4-3 ... the below also be respectively arranged with seal ring 7-1,7-2,7-3 ....
Be provided with screw rod 9 in the bottom of cylinder body 1, also can be designed to internal thread, be convenient to be installed on other device.Be provided with the attachment hole 10 that is used to connect other device on the top of piston rod 3-2.This piston rod 3-2 can be through becoming the cylinder body of another solar term spring again after the machining repacking.Certainly, if this piston rod 3-2 has become the piston rod of minor details gas spring assembly, just can make solidly, rigidity is better like this.
Claims (4)
1. pressurized gas spring, comprise cylinder body (1), piston (2), lower seal head (5), pass the piston rod (3) of upper cover (4-1), it is characterized in that: described piston rod (3) for hollow tube and in be provided with at least one joint with last gas spring assembly, described gas spring assembly comprise respectively piston (2-1,2-2 ...), hollow piston rod (3-1,3-2 ...) and upper cover (4-2,4-3 ...).
2. pressurized gas spring according to claim 1 is characterized in that: the bottom Joint of described lower seal head (5) and described cylinder body (1).
3. pressurized gas spring according to claim 1, it is characterized in that: described lower seal head (5) engages by the annular convex shoulder (1-1) that is provided with on the annular groove (5-1) that is provided with on its excircle and described cylinder body (1) inner circumference and is fixed together, and also is provided with seal ring (8) at least at described lower seal head (5) between described cylinder body (1).
4. pressurized gas spring according to claim 1 is characterized by: described upper cover (4-1,4-2,4-3 ...) the below also be respectively arranged with seal ring (7-1,7-2,7-3 ...).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376528U CN201027880Y (en) | 2007-05-14 | 2007-05-14 | Compressed gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200376528U CN201027880Y (en) | 2007-05-14 | 2007-05-14 | Compressed gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027880Y true CN201027880Y (en) | 2008-02-27 |
Family
ID=39132090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200376528U Expired - Fee Related CN201027880Y (en) | 2007-05-14 | 2007-05-14 | Compressed gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027880Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010072126A1 (en) * | 2008-12-22 | 2010-07-01 | 奇瑞汽车股份有限公司 | Durability test desk for vehicle gas spring and test method thereof |
| CN103829930A (en) * | 2009-11-16 | 2014-06-04 | 泰科保健集团有限合伙公司 | Thermometer probe |
| CN106968825A (en) * | 2017-03-03 | 2017-07-21 | 华晨汽车集团控股有限公司 | A kind of twin cylinder engine lid supports gas spring |
| CN108533660A (en) * | 2018-05-04 | 2018-09-14 | 东风商用车有限公司 | Shock absorber |
| CN109855471A (en) * | 2019-04-03 | 2019-06-07 | 山西北方机械制造有限责任公司 | A kind of multistage gas big gun recoil mechanism |
| CN111623079A (en) * | 2020-05-25 | 2020-09-04 | 北京凌空天行科技有限责任公司 | Flexible aluminium honeycomb buffer |
| CN113280067A (en) * | 2021-04-28 | 2021-08-20 | 徐州东宏机械制造有限公司 | Flexible air spring of flexible range |
-
2007
- 2007-05-14 CN CNU2007200376528U patent/CN201027880Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010072126A1 (en) * | 2008-12-22 | 2010-07-01 | 奇瑞汽车股份有限公司 | Durability test desk for vehicle gas spring and test method thereof |
| CN103829930A (en) * | 2009-11-16 | 2014-06-04 | 泰科保健集团有限合伙公司 | Thermometer probe |
| CN103829930B (en) * | 2009-11-16 | 2017-04-12 | 泰科保健集团有限合伙公司 | Thermometer probe |
| CN106968825A (en) * | 2017-03-03 | 2017-07-21 | 华晨汽车集团控股有限公司 | A kind of twin cylinder engine lid supports gas spring |
| CN108533660A (en) * | 2018-05-04 | 2018-09-14 | 东风商用车有限公司 | Shock absorber |
| CN108533660B (en) * | 2018-05-04 | 2023-05-12 | 东风商用车有限公司 | Shock absorber |
| CN109855471A (en) * | 2019-04-03 | 2019-06-07 | 山西北方机械制造有限责任公司 | A kind of multistage gas big gun recoil mechanism |
| CN109855471B (en) * | 2019-04-03 | 2021-08-06 | 山西北方机械制造有限责任公司 | Anti-recoil device of multistage air cannon |
| CN111623079A (en) * | 2020-05-25 | 2020-09-04 | 北京凌空天行科技有限责任公司 | Flexible aluminium honeycomb buffer |
| CN113280067A (en) * | 2021-04-28 | 2021-08-20 | 徐州东宏机械制造有限公司 | Flexible air spring of flexible range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20100514 |