CN103352949A - Expansion link and telescopic structure unit thereof - Google Patents
Expansion link and telescopic structure unit thereof Download PDFInfo
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- CN103352949A CN103352949A CN2013103335962A CN201310333596A CN103352949A CN 103352949 A CN103352949 A CN 103352949A CN 2013103335962 A CN2013103335962 A CN 2013103335962A CN 201310333596 A CN201310333596 A CN 201310333596A CN 103352949 A CN103352949 A CN 103352949A
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Abstract
The invention relates to an expansion link and a telescopic structure unit thereof. According to the technical scheme, the telescopic structure unit comprises a cylinder body, a valve body dividing the cylinder body into a first sealing cavity and a second sealing cavity, and a piston rod, wherein two flow cavities are formed in the valve body along the axial direction; sealing elements are respectively arranged in the two flow cavities; an intermediate passage for mutually communicating the two flow cavities and side passages for respectively communicating the corresponding flow cavities with corresponding sealing cavities are formed in the valve body; the sealing elements can be impacted by a flowing medium in the cylinder body to move to seal the intermediate passage with the movement of the piston rod so as to fix the piston rod relative to the cylinder body; resistance elements capable of providing resistance to the sealing elements to move towards the intermediate passage are further arranged in the two flow cavities; according to the expansion link and the telescopic structure unit provided by the invention, the potential safety hazards caused by high pressure gas in the prior art are avoided; and the operation is simple and convenient.
Description
Technical field
The present invention relates to a kind of flexible rod and shrinking structure unit thereof.
Background technique
Now in the technology, telescopic rod shaped structure, can be presented as air spring, be the disclosed a kind of air spring of application for a patent for invention of CN101696717A such as application publication number, comprise the piston rod that is connected with inner tube, one end of inner tube is provided with button, described piston rod front end is provided with O-ring seal, piston rod is provided with consequent cover and bowl-type rubber pad, the rear end of piston rod is provided with O-ring seal and air hole: be provided with strut in the described inner tube, strut is provided with fastening piece, and strut is provided with enable switch, enable switch is provided with the control valve, and the control valve is provided with O-ring seal; This kind air spring structure, inside is filled with pressurized gas, and in use easily detonation has higher potential safety hazard.
This telescopic rod shaped structure also can be presented as a kind of hydraulic support, be the disclosed a kind of triple retractable column of application for a patent for invention and the hydraulic support of CN101845957A such as application publication number, triple retractable column comprises outer cylinder body, be provided with cylinder in the one-level in the outer cylinder body, be provided with cylinder in the secondary in the one-level in the cylinder, be provided with post alive in the secondary in the cylinder; Outer cylinder body is provided with epicoele hydraulic fluid port and cavity of resorption hydraulic fluid port; The diapire of cylinder is provided with the first bottom valve in the one-level, and the diapire of cylinder is provided with the first bottom valve in the one-level; The sidewall of cylinder is provided with the first oilhole that the epicoele that makes outer cylinder body communicates with the epicoele of cylinder in the one-level in the one-level; The sidewall of cylinder is provided with the first oilhole that the epicoele that makes cylinder in the one-level communicates with the epicoele of cylinder in the one-level in the one-level; This kind hydraulically extensible structure needs by the flow of fluid between the power source realization upper and lower cavity hydraulic fluid port of external hydraulic pump and so on, and the hydraulic pressure in the cylinder is acquired a certain degree, thereby realizes flexible function; The mode that this kind is flexible needs by external force, and operation is comparatively complicated.
Summary of the invention
The purpose of this invention is to provide a kind of shrinking structure unit, fill flowing medium in its cylinder body, making the pressure in the cylinder body is barometric pressure or the barometric pressure that levels off to, thus the potential safety hazard of having avoided prior art mesohigh gas to bring; And flexible operation can be achieved by artificial drawing or compression, and is simple to operation, and can by the control to operating force, end the lasting relative displacement of piston rod and cylinder body.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of shrinking structure unit comprises cylinder body, is arranged in described cylinder body and described cylinder body is divided into two valve bodies of be used for filling the Seal cage one of flowing medium and Seal cage two, can drives the axially movable piston rod of described valve body; Have vertically on the described valve body near the flowing lumen two of the flowing lumen one of described Seal cage one with close described Seal cage two; Be provided with the center-aisle that two flowing lumens are communicated between described flowing lumen one and the described flowing lumen two; Described valve body is provided with and makes described flowing lumen one communicate in the side canal one of described Seal cage one and described flowing lumen two is communicated in the side canal two of described Seal cage two; Be provided with in the described flowing lumen one that can be hard to bear described flowing medium impacts and movable and can seal the Sealing one of described center-aisle and when described Sealing one has the trend of the described center-aisle of sealing, can apply resistance to stop described Sealing one to described center-aisle activity and still to keep described flowing lumen one to circulate in the resistance piece one of described flowing lumen two to described Sealing one to described center-aisle; During resistance that the impact force that is subject to described flowing medium when described Sealing one gives greater than described resistance piece one, described Sealing one is movable and seal described center-aisle to described center-aisle; Be provided with in the described flowing lumen two that can be hard to bear described flowing medium impacts and movable and can seal the Sealing two of described center-aisle and when described Sealing two has the trend of the described center-aisle of sealing, can apply resistance to stop described Sealing two to described center-aisle activity and still to keep described flowing lumen one to circulate in the resistance piece two of described flowing lumen two to described Sealing two to described center-aisle; During resistance that the impact force that is subject to described flowing medium when described Sealing two gives greater than described resistance piece two, described Sealing two is movable and seal described center-aisle to described center-aisle.
Artificial draw or press piston rod, two flowing mediums in the Seal cage are able to by three passages circulations, and then also make valve body produce displacement, thereby realize the relative displacement between piston rod and the cylinder body; gently draw or light pressure condition under, corresponding seal is movable and finally contact at corresponding resistance piece to center-aisle, and still can circulate between corresponding flowing lumen and the center-aisle, thereby realizes the relative displacement between piston rod and the cylinder body; Heavily drawing or weight or fast under pulling or the state of fast-holding, corresponding seal is movable and because the suffered flowing medium of sealing body has overcome the resistance that resistance piece gives to its impact force to center-aisle, thereby continue to the movable center-aisle that finally seals of center-aisle thereby make the sealing body cross resistance piece, thereby ended the circulation between two Seal cages, and then made relative fixing on the former relative displacement direction of piston rod and cylinder body; Describedly gently draw or gently press, refer to that the flowing medium that causes owing to the application of force to piston rod gives the resistance of seal less than resistance piece to the impact force of seal; Described heavy drawing or weight refers to that the flowing medium that causes owing to the application of force to piston rod has overcome the resistance that resistance piece gives seal to the impact force of seal; Described quick pulling or fast-holding refer to that the flowing medium that causes owing to the application of force to piston rod has overcome the resistance of resistance piece to seal to the instant impact of seal; And owing to center-aisle is closed, lose circulation between two Seal cages, thereby, if continue to make the motion of piston rod pressure cylinder in former application of force direction, then need overcome the corresponding Seal cage of compression or enlarge corresponding Seal cage, therefore need larger active force, generally need overcome at least the barometric pressure acting, general impersonal force can be, thereby realize relative fixing on former application of force direction of piston rod and cylinder body, and also be conducive to make two pressure in the Seal cage in preparation, namely to be set to barometric pressure or convergence barometric pressure, thereby the technical program is relative with cylinder body when static at piston rod, pressure in two Seal cages is kept barometric pressure or convergence barometric pressure, and in piston rod and cylinder body relative movement process, two interior pressure of Seal cage also level off to barometric pressure as much as possible.
As of the present invention preferred, two described flowing lumens all in the form of a ring, two described Sealings are all in the form of a ring; Opening place axis and the spacing between the described valve axis that two described side canals are communicated in corresponding described flowing lumen are communicated in the opening place axis of described respective streams cavity and the spacing between the described valve axis less than described center-aisle.
Flowing lumen in the form of a ring with seal setting in the form of a ring, the also further clear and definite activity direction of seal, namely be parallel to cylinder body axially.
As of the present invention preferred, described resistance piece one is for being located at projection or the step of described flowing lumen one sidewall.
As of the present invention preferred, described resistance piece two is for being located at projection or the step of described flowing lumen two sidewalls.
As of the present invention preferred, this kind shrinking structure unit also comprises is located at the floating piston that is dynamically connected in the described cylinder body and with described inboard wall of cylinder block sealed sliding and described cylinder body is divided into the exhaust cavity that communicates with atmosphere and the Seal cage that is comprised of described Seal cage one and described Seal cage two.
The volume that is set to the adjacent seals chamber of floating piston provides the space of axial stretching, the pressure that is conducive in the Seal cage trends towards as far as possible barometric pressure or is equal to barometric pressure, also be conducive to the pressure between balanced two Seal cages, also make the telescopic movable of piston rod more laborsaving in the above-mentioned activity of relatively gently drawing or gently depressing simultaneously.
As of the present invention preferred, described flowing lumen one near described center-aisle place along described valve body space radially less than described seal one along described valve body thickness radially; Described flowing lumen two near described center-aisle places along described valve body space radially less than described seal two along described valve body thickness radially.
Above-mentioned setting is so that seal one or seal two can be stuck in corresponding flowing lumen near the center-aisle place behind the sealing center-aisle; Thereby so that piston rod is more stable with the relative fixed effect of cylinder body on former application of force direction.
Described former application of force direction, refer to that seal seals center-aisle owing to piston rod is stressed after, continue again by last time to the direction of the piston rod application of force to the piston rod application of force.
Another object of the present invention also is to provide a kind of flexible rod, and it comprises at least two as the described shrinking structure of above-mentioned technological scheme unit.
A further object of the present invention also is to provide a kind of flexible rod, it comprises at least two as the described shrinking structure of above-mentioned technological scheme unit, except the piston rod that is positioned at this kind flexible rod termination, remaining described piston rod is connected in floating piston or the cylinder body of adjacent described shrinking structure unit.
A further object of the present invention also is to provide a kind of flexible rod, it comprises at least two as the described shrinking structure of above-mentioned technological scheme unit, except the described cylinder body that is positioned at this flexible rod termination, remaining described cylinder body or for the piston rod of adjacent described shrinking structure unit or be fixedly connected on the piston rod of adjacent described shrinking structure unit.
In sum, the present invention has following beneficial effect: the present invention is simple in structure, and is easy to implement; By the setting of seal and passage, can make the operator pass through control to piston rod application of force size or speed, realize piston rod Boring mill upwards relative with cylinder body fixing or with the lasting relative displacement of cylinder body, and simple to operate; The flowing medium of filling in the cylinder body of the present invention can be liquid or gas or gas liquid mixture, and because the existence of flowing medium makes the pressure of Seal cage generation is barometric pressure or the barometric pressure that levels off to, therefore, potential safety hazard is lower; More owing to the setting of floating piston, further guarantee the stable of the interior pressure of Seal cage, thereby further reduce potential safety hazard.
Description of drawings
Fig. 1 is that embodiment 1 is at the structural representation that gently draws under the piston rod state;
Fig. 2 is A section enlarged diagram among Fig. 1;
To be embodiment 1 heavily drawing piston rod or spurring fast structural representation under the piston rod state Fig. 3;
Fig. 4 is B section enlarged diagram among Fig. 3;
Fig. 5 is that embodiment 1 is at light structural representation of pressing under the piston rod state;
Fig. 6 is C section enlarged diagram among Fig. 5;
Fig. 7 is the structural representation of embodiment 1 under weight piston rod or fast-holding piston rod state;
Fig. 8 is D section enlarged diagram among Fig. 7;
Fig. 9 is the position view of piston rod in cylinder body among the embodiment 2.
Among the figure, 1, cylinder body, 11, Seal cage one, 12, Seal cage two, 2, valve body, 21, flowing lumen one, 211, Sealing one, 22, flowing lumen two, 221, Sealing two, 231, side canal one, 232, side canal two, 233, center-aisle, 241, resistance piece one, 242, resistance piece two, 3, piston rod, 4, floating piston, 41, exhaust cavity, 42, seal ring one, 43, seal ring two.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
This specific embodiment only is explanation of the invention; it is not limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present invention.
Embodiment 1: shown in Fig. 1-8, a kind of shrinking structure unit, comprise cylinder body 1, the floating piston 4 of being located in the cylinder body 1 and being dynamically connected by seal ring one 42 sealed sliding with cylinder body 1 inwall, and floating piston 4 with cylinder body 1 be divided into the Seal cage that is filled with flowing medium and and the exhaust cavity 41 that communicates of atmosphere; Also be provided with valve body 2 in the cylinder body 1, valve body 2 is divided into Seal cage 1 and Seal cage 2 12 with Seal cage, Seal cage 2 12 is between Seal cage 1 and exhaust cavity 41, and Seal cage 1 is barometric pressure or the barometric pressure that levels off to Seal cage 2 12 interior pressure, and flowing medium can be liquid or gas or gas liquid mixture; Be fixedly connected with piston rod 3 on the valve body 2, piston rod 3 extends to outside the cylinder body 1; In the present embodiment, piston rod 3 passes floating piston 4 and exhaust cavity 41 extends to outside the cylinder body 1, and floating piston 4 is dynamically connected by seal ring 2 43 sealed sliding with piston rod 3.
Have vertically on the valve body 2 near the flowing lumen two 22 of the flowing lumen 1 of Seal cage 1 with close Seal cage 2 12; Be provided with the center-aisle 233 that two flowing lumens are communicated between flowing lumen 1 and the flowing lumen 2 22; Valve body 2 is provided with and makes flowing lumen 1 communicate all the time in the side canal 1 of Seal cage 1 and flowing lumen 2 22 is communicated all the time in the side canal 2 232 of Seal cage 2 12; Flowing lumen 1 be arranged in parallel with flowing lumen 2 22 and all in the form of a ring.
Be provided with in the flowing lumen 1 can be hard to bear flowing medium impact and movable and can seal the Sealings 1 of center-aisle 233 and when Sealing 1 has the trend of sealing center-aisle 233, can apply resistance to stop Sealing 1 to center-aisle 233 activities and still to keep flowing lumen 1 to circulate in the resistance piece 1 of flowing lumen 2 22 to Sealing 1 to center-aisle 233; During resistance that the impact force that is subject to flowing medium when Sealing 1 gives greater than resistance piece 1, Sealing 1 is movable and seal center-aisle 233 to center-aisle 233; Sealing 1 in the form of a ring, the external diameter of Sealing 1 should equate with the internal diameter of cylinder body 1 or the external diameter of Sealing 1 should be slightly larger than the internal diameter of cylinder body 1, thereby realizes the sealing between Sealing 1 and cylinder body 1 inwall.
Be provided with in the flowing lumen 2 22 can be hard to bear flowing medium impact and movable and can seal the Sealings 2 221 of center-aisle 233 and when Sealing 2 221 has the trend of sealing center-aisle 233, can apply resistance to stop Sealing 2 221 to center-aisle 233 activities and still to keep flowing lumen 1 to circulate in the resistance piece 2 242 of flowing lumen 2 22 to Sealing 2 221 to center-aisle 233; During resistance that the impact force that is subject to flowing medium when Sealing 2 221 gives greater than resistance piece 2 242, Sealing 2 221 is movable and seal center-aisle 233 to center-aisle 233; Sealing 2 221 in the form of a ring, the external diameter of Sealing 2 221 should equate with the internal diameter of cylinder body 1 or the external diameter of Sealing 2 221 should be slightly larger than the internal diameter of cylinder body 1, thereby realizes the sealing between Sealing 2 221 and cylinder body 1 inwall.
Opening place axis and the spacing between valve body 2 axis that two side canals are communicated in the respective streams cavity are communicated in the opening place axis of respective streams cavity and the spacing between valve body 2 axis less than center-aisle.
Flowing lumen 1 near center-aisle 233 places along valve body 2 space radially less than seal 1 along valve body 2 thickness radially; Flowing lumen 2 22 near center-aisle 233 places along valve body 2 space radially less than seal 2 221 along valve body 2 thickness radially, thereby when corresponding Sealing sealing center-aisle, the seal can be stuck in corresponding flowing lumen near the center-aisle place, thereby strengthens piston rod 3 and cylinder body 1 relatively-stationary stability on former application of force direction.
As shown in Figure 1, for present embodiment at the structural representation that gently draws under the piston rod state, this moment, Sealing 2 221 contacted at resistance piece 2 242, the relative cylinder bodies 1 of piston rod 3 produce lasting displacement.
As shown in Figure 3, for present embodiment is heavily drawing piston rod or is spurring fast structural representation under the piston rod state, this moment, Sealing 2 221 suffered flowing medium impact forces overcame the resistance of 2 242 pairs of Sealings 2 221 of resistance piece, thereby make Sealing 2 221 cross resistance piece 2 242 and seal center-aisle 233, make piston rod 3 relative cylinder bodies 1 on former application of force direction, namely relatively fixing on the draw direction.
As shown in Figure 5, be the structural representation of present embodiment under light pressure piston rod state, this moment, Sealing 1 contacted at resistance piece 1, and piston rod 3 relative cylinder bodies 1 produce and continue displacement.
As shown in Figure 7, be the structural representation of present embodiment under weight piston rod or fast-holding piston rod state, this moment, Sealing one 211 suffered flowing medium impact forces overcame the resistance of one 241 pairs of Sealings 1 of resistance piece, thereby make Sealing 1 cross resistance piece 1 and seal center-aisle 233, make piston rod 3 relative cylinder bodies 1 on former application of force direction, namely relatively fixing on the compression direction.
Describedly gently draw or gently press, refer to that the flowing medium that causes owing to the application of force to piston rod 3 gives the resistance of seal less than resistance piece to the impact force of seal; Described heavy drawing or weight refers to that the flowing medium that causes owing to the application of force to piston rod 3 has overcome the resistance that resistance piece gives seal to the impact force of seal; Described quick pulling or fast-holding refer to that the flowing medium that causes owing to the application of force to piston rod 3 has overcome the resistance of resistance piece to seal to the instant impact of seal.
Embodiment 2: a kind of shrinking structure unit, as shown in Figure 9, be that with embodiment 1 difference piston rod 3 passes Seal cage 1 and extends to outside the cylinder body 1, and piston rod 3 is slidingly connected with cylinder body 1 end part seal.
Embodiment 3: a kind of flexible rod, it comprises at least two embodiments 1, and except the piston rod 3 that is positioned at this kind flexible rod termination, remaining piston rod 3 is connected in the cylinder body 1 of adjacent expansion element of construction.
Embodiment 4: a kind of flexible rod, it comprises at least two embodiments 2, and except the piston rod 3 that is positioned at this kind flexible rod termination, remaining piston rod 3 is connected in floating piston 4 or the cylinder body 1 of adjacent expansion element of construction.
Embodiment 5: a kind of flexible rod, and it comprises at least two embodiments 1, except the cylinder body 1 that is positioned at this flexible rod termination, remaining cylinder body 1 or for the piston rod 3 of adjacent expansion element of construction or be fixedly connected on the piston rod 3 of adjacent expansion element of construction.
Embodiment 6: a kind of flexible rod, and it comprises at least two embodiments 2, except the cylinder body 1 that is positioned at this flexible rod termination, remaining cylinder body 1 or for the piston rod 3 of adjacent expansion element of construction or be fixedly connected on the piston rod 3 of adjacent expansion element of construction.
Claims (9)
1. shrinking structure unit, it is characterized in that, comprise cylinder body (1), be arranged in described cylinder body (1) and described cylinder body (1) is divided into two valve bodies (2) of be used for filling the Seal cage one (11) of flowing medium and Seal cage two (12), can drives the axially movable piston rod of described valve body (2) (3);
Have vertically on the described valve body (2) near the flowing lumen two (22) of the flowing lumen one (21) of described Seal cage one (11) with close described Seal cage two (12); Be provided with the center-aisle (233) that two flowing lumens are communicated between described flowing lumen one (21) and the described flowing lumen two (22); Described valve body (2) is provided with and makes described flowing lumen one (21) communicate in the side canal one (231) of described Seal cage one (11) and described flowing lumen two (22) is communicated in the side canal two (232) of described Seal cage two (12);
Described flowing lumen one, (21) be provided with in that can be hard to bear described flowing medium impacts and to described center-aisle, (233) activity also can be sealed described center-aisle, (233) Sealing one, (211) reach when described Sealing one, (211) has the described center-aisle of sealing, can be to described Sealing one during (233) trend, (211) apply resistance to stop described Sealing one, (211) to described center-aisle, (233) movable and still keep described flowing lumen one, (21) circulate in described flowing lumen two, (22) resistance piece one, (241); During resistance that the impact force that is subject to described flowing medium when described Sealing one (211) gives greater than described resistance piece one (241), described Sealing one (211) is movable and seal described center-aisle (233) to described center-aisle (233);
Described flowing lumen two, (22) be provided with in that can be hard to bear described flowing medium impacts and to described center-aisle, (233) activity also can be sealed described center-aisle, (233) Sealing two, (221) reach when described Sealing two, (221) has the described center-aisle of sealing, can be to described Sealing two during (233) trend, (221) apply resistance to stop described Sealing two, (221) to described center-aisle, (233) movable and still keep described flowing lumen one, (21) circulate in described flowing lumen two, (22) resistance piece two, (242); During resistance that the impact force that is subject to described flowing medium when described Sealing two (221) gives greater than described resistance piece two (242), described Sealing two (221) is movable and seal described center-aisle (233) to described center-aisle (233).
2. a kind of shrinking structure according to claim 1 unit is characterized in that, two described flowing lumens all in the form of a ring, two described Sealings are all in the form of a ring; Opening place axis and the spacing between described valve body (2) axis that two described side canals are communicated in corresponding described flowing lumen are communicated in the opening place axis of described respective streams cavity and the spacing between described valve body (2) axis less than described center-aisle.
3. a kind of shrinking structure according to claim 1 and 2 unit is characterized in that, described resistance piece one (241) is for being located at projection or the step of described flowing lumen one (21) sidewall.
4. a kind of shrinking structure according to claim 1 and 2 unit is characterized in that, described resistance piece two (242) is for being located at projection or the step of described flowing lumen two (22) sidewalls.
5. a kind of shrinking structure according to claim 1 unit, it is characterized in that this kind shrinking structure unit also comprises is located at the floating piston (4) that is slidingly connected in the described cylinder body (1) and with described cylinder body (1) inner wall sealing and described cylinder body (1) is divided into the exhaust cavity (41) that communicates with atmosphere and the Seal cage that is comprised of described Seal cage one (11) and described Seal cage two (12).
6. a kind of shrinking structure according to claim 1 unit, it is characterized in that, described flowing lumen one (21) near described center-aisle (233) locate along described valve body (2) space radially less than described seal one (211) along described valve body (2) thickness radially; Described flowing lumen two (22) near described center-aisles (233) locate along described valve body (2) space radially less than described seal two (221) along described valve body (2) thickness radially.
7. a flexible rod is characterized in that, it comprises at least two shrinking structure as claimed in claim 1 unit.
8. flexible rod, it is characterized in that, it comprises at least two shrinking structure as claimed in claim 5 unit, and except the piston rod that is positioned at this kind flexible rod termination (3), remaining described piston rod (3) is connected in floating piston (4) or the cylinder body (1) of adjacent described shrinking structure unit.
9. flexible rod, it is characterized in that, it comprises at least two shrinking structure as claimed in claim 5 unit, except the described cylinder body (1) that is positioned at this flexible rod termination, remaining described cylinder body (1) or for the piston rod (3) of adjacent described shrinking structure unit or be fixedly connected on the piston rod (3) of adjacent described shrinking structure unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310333596.2A CN103352949B (en) | 2013-08-02 | 2013-08-02 | Expansion link and telescopic structure unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310333596.2A CN103352949B (en) | 2013-08-02 | 2013-08-02 | Expansion link and telescopic structure unit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352949A true CN103352949A (en) | 2013-10-16 |
| CN103352949B CN103352949B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310333596.2A Active CN103352949B (en) | 2013-08-02 | 2013-08-02 | Expansion link and telescopic structure unit thereof |
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| CN (1) | CN103352949B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722096A (en) * | 2019-10-22 | 2020-01-24 | 合肥工业大学 | Wax injection device |
| CN111981083A (en) * | 2020-08-21 | 2020-11-24 | 扬州市伏尔坎机械制造有限公司 | Buffer oil cylinder for vehicle shock absorption |
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| CN2152609Y (en) * | 1993-01-08 | 1994-01-12 | 桂林市工具厂 | Sprayer piston |
| US6129343A (en) * | 1997-05-28 | 2000-10-10 | Draftex Industries Limited | Gas spring with speed regulation |
| KR20010093000A (en) * | 2000-03-28 | 2001-10-27 | 밍 루 | A gas spring changed piston valve structure |
| CN201152334Y (en) * | 2008-01-14 | 2008-11-19 | 江阴强顺科技有限公司 | Gas spring with damping effect |
| KR100976011B1 (en) * | 2008-09-10 | 2010-08-17 | 남준욱 | A Gas-spring |
| CN203395067U (en) * | 2013-08-02 | 2014-01-15 | 安吉宏峰气弹簧科技有限公司 | Telescopic rod and telescopic structure unit thereof |
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2013
- 2013-08-02 CN CN201310333596.2A patent/CN103352949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152609Y (en) * | 1993-01-08 | 1994-01-12 | 桂林市工具厂 | Sprayer piston |
| US6129343A (en) * | 1997-05-28 | 2000-10-10 | Draftex Industries Limited | Gas spring with speed regulation |
| KR20010093000A (en) * | 2000-03-28 | 2001-10-27 | 밍 루 | A gas spring changed piston valve structure |
| CN201152334Y (en) * | 2008-01-14 | 2008-11-19 | 江阴强顺科技有限公司 | Gas spring with damping effect |
| KR100976011B1 (en) * | 2008-09-10 | 2010-08-17 | 남준욱 | A Gas-spring |
| CN203395067U (en) * | 2013-08-02 | 2014-01-15 | 安吉宏峰气弹簧科技有限公司 | Telescopic rod and telescopic structure unit thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722096A (en) * | 2019-10-22 | 2020-01-24 | 合肥工业大学 | Wax injection device |
| CN110722096B (en) * | 2019-10-22 | 2021-04-30 | 合肥工业大学 | Wax injection device |
| CN111981083A (en) * | 2020-08-21 | 2020-11-24 | 扬州市伏尔坎机械制造有限公司 | Buffer oil cylinder for vehicle shock absorption |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103352949B (en) | 2015-02-25 |
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