CN203395067U - Telescopic rod and telescopic structure unit thereof - Google Patents
Telescopic rod and telescopic structure unit thereof Download PDFInfo
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- CN203395067U CN203395067U CN201320469350.3U CN201320469350U CN203395067U CN 203395067 U CN203395067 U CN 203395067U CN 201320469350 U CN201320469350 U CN 201320469350U CN 203395067 U CN203395067 U CN 203395067U
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Abstract
The utility model relates to a telescopic rod and a telescopic structure unit thereof. The technical scheme includes that the telescopic structure unit comprises a cylinder, a valve and a piston rod; the valve divides the cylinder into a first sealing cavity and a second sealing cavity; two communication cavities are axially arranged on the valve; sealing parts are respectively arranged in the two communication cavities; a middle channel and side channels are arranged on the valve, and the two communication cavities can be communicated with each other via the middle channel and can be communicated with the corresponding sealing cavities via the side channels; the sealing parts can be impacted by flow media in the cylinder along with movement of the piston rod and act to seal the middle channel, so that the piston rod can be fixed relative to the cylinder; resistance parts capable of generating resistance for providing resistance for the sealing parts to act to move towards the middle channel are further arranged in the two communication cavities. The telescopic rod and the telescopic structure unit have the advantages that the problem of potential safety hazards caused by high-pressure gas in the prior art can be solved, and the telescopic rod and the telescopic structure unit can be operated easily and conveniently.
Description
Technical field
The utility model relates to a kind of flexible rod and shrinking structure unit thereof.
Background technique
Now in technology, telescopic rod-like structure, can be presented as air spring, as the application publication number disclosed a kind of air spring of application for a patent for invention that is CN101696717A, comprise the piston rod being 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: in described inner tube, be provided with strut, strut is provided with fastening piece, and strut is provided with enable switch, enable switch is provided with control valve, and control valve is provided with O-ring seal; This kind of air spring structure, inside is filled with pressurized gas, and in use easily detonation, has higher potential safety hazard.
This telescopic rod-like structure also can be presented as a kind of hydraulic support, as application publication number be CN101845957A the disclosed a kind of triple retractable column of application for a patent for invention and hydraulic support, triple retractable column comprises outer cylinder body, in outer cylinder body, be provided with cylinder in one-level, in one-level, in cylinder, be provided with cylinder in secondary, in secondary, in cylinder, be provided with post alive; Outer cylinder body is provided with epicoele hydraulic fluid port and cavity of resorption hydraulic fluid port; In one-level, the diapire of cylinder is provided with the first bottom valve, and in one-level, the diapire of cylinder is provided with the first bottom valve; In one-level, the sidewall of cylinder is provided with the first oilhole that the epicoele of outer cylinder body and the epicoele of cylinder in one-level are communicated; In one-level, the sidewall of cylinder is provided with the first oilhole that the epicoele of cylinder in one-level and the epicoele of cylinder in one-level are communicated; This kind of hydraulically extensible structure, need realize the flow of fluid between upper and lower cavity hydraulic fluid port by the power source of external hydraulic pump and so on, and the hydraulic pressure in cylinder is acquired a certain degree, thereby realizes flexible function; This kind of flexible mode, need be by external force, and operation is comparatively complicated.
Model utility content
The purpose of this utility model is to provide a kind of shrinking structure unit, fills flowing medium in its cylinder body, and making the pressure in 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, simple to operation, and can pass through the control to operating force, end the lasting relative displacement of piston rod and cylinder body.
Above-mentioned technical purpose of the present utility model 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 for filling the Seal cage one of flowing medium and the valve body of Seal cage two, can driving the axially movable piston rod of described valve body; On described valve body, have vertically the flowing lumen two with close described Seal cage two near the flowing lumen one of described Seal cage one; Between described flowing lumen one and described flowing lumen two, be provided with the center-aisle that can make two flowing lumens communicate; 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; In described flowing lumen one, being provided with the hard to bear described flowing medium of energy impacts and also can seal the Sealing one of described center-aisle and 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 when described Sealing one has the trend of the described center-aisle of sealing to described center-aisle is movable; When the impact force that is subject to described flowing medium when described Sealing one is greater than the resistance that described resistance piece one gives, described Sealing one is movable and seal described center-aisle to described center-aisle; In described flowing lumen two, being provided with the hard to bear described flowing medium of energy impacts and also can seal the Sealing two of described center-aisle and 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 when described Sealing two has the trend of the described center-aisle of sealing to described center-aisle is movable; When the impact force that is subject to described flowing medium when described Sealing two is greater than the resistance that described resistance piece two gives, described Sealing two is movable and seal described center-aisle to described center-aisle.
Artificial draw or press piston rod, make two flowing mediums in Seal cage be able to circulate by three passages, and then also make valve body produce displacement, thereby realize the relative displacement between piston rod and 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 center-aisle, thereby realizes the relative displacement between piston rod and cylinder body, heavily draw weight or pull fast or the state of fast-holding under, corresponding seal is to center-aisle activity and because the suffered flowing medium of sealing body has overcome to its impact force the resistance that resistance piece gives, thereby continue to the movable center-aisle that finally seals of center-aisle thereby make sealing body cross resistance piece, thereby ended the circulation between two Seal cages, so make piston rod with cylinder body relative fixing in former relative displacement direction, described gently drawing or gently pressing, and refers to because the flowing medium that the application of force of piston rod is caused is less than to the impact force of seal the resistance that resistance piece gives seal, described heavily draw or weight, refers to because the flowing medium that the application of force of piston rod is caused has overcome to the impact force of seal the resistance that resistance piece gives seal, described pulls or fast-holding fast, refers to because the flowing medium that the application of force of piston rod is caused has overcome the resistance of resistance piece to seal to the instant impact of seal, and because center-aisle is closed, between two Seal cages, lose circulation, thereby, if continue to make the motion of piston rod pressure cylinder in former application of force direction, need to overcome the corresponding Seal cage of compression or expand corresponding Seal cage, therefore need larger active force, generally at least need to overcome barometric pressure acting, general impersonal force can be, thereby realize piston rod with cylinder body relative fixing in former application of force direction, and be also conducive to make two pressure in Seal cage in preparation, 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 maintains barometric pressure or convergence barometric pressure, in piston rod and cylinder body relative movement process, pressure in two Seal cages also levels off to barometric pressure as much as possible.
As of the present utility model preferred, all in the form of a ring, two described Sealings all in the form of a ring for two described flowing lumens; Two described side canals are communicated in the opening place axis of corresponding described flowing lumen and the spacing between described valve axis and are less than described center-aisle and are communicated in the opening place axis of described respective streams cavity and the spacing between described valve axis.
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, be parallel to cylinder body axially.
As of the present utility model preferred, described resistance piece one is for being located at projection or the step of described flowing lumen one sidewall.
As of the present utility model preferred, described resistance piece two is for being located at projection or the step of described flowing lumen two sidewalls.
As of the present utility model preferably, this kind of shrinking structure unit also comprises to be located in described cylinder body and to be dynamically connected with described inboard wall of cylinder block sealed sliding and described cylinder body to be divided into the floating piston of the exhaust cavity communicating with atmosphere and the Seal cage being comprised of described Seal cage one and described Seal cage two.
The volume that is set to adjacent seals chamber of floating piston provides the space of axial stretching, the pressure being conducive in 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 utility model preferred, described flowing lumen one is less than described seal one along described valve body thickness radially near described center-aisle place along described valve body space radially; Described flowing lumen two is less than described seal two along described valve body thickness radially near described center-aisle place along described valve body space radially.
Above-mentioned setting, makes seal one or seal two can be stuck in corresponding flowing lumen near center-aisle place after sealing center-aisle; Thereby make piston rod more stable with the relative fixed effect of cylinder body in former application of force direction.
Described former application of force direction, refers to that seal seals after center-aisle because piston rod is stressed, then continue 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 utility model is also to provide a kind of flexible rod, and it comprises at least two shrinking structure unit as described in technique scheme.
An object more of the present utility model is also to provide a kind of flexible rod, it comprises at least two shrinking structure unit as described in technique scheme, except being positioned at the piston rod of this kind of flexible rod termination, described in remaining, piston rod is connected in floating piston or the cylinder body of adjacent described shrinking structure unit.
An object more of the present utility model is also to provide a kind of flexible rod, it comprises at least two shrinking structure unit as described in technique scheme, except being positioned at the described cylinder body of this flexible rod termination, 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 described in remaining.
In sum, the utlity model has following beneficial effect: the utility model is simple in structure, easy to implement; By the setting of seal and passage, can make operator pass through the 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 utility model cylinder body can be liquid or gas or gas liquid mixture, and the pressure that Seal cage is produced due to the existence of flowing medium is barometric pressure or the barometric pressure that levels off to, and therefore, potential safety hazard is lower; More, due to the setting of floating piston, further guarantee the stable of the interior pressure of Seal cage, thereby further reduce potential safety hazard.
Accompanying drawing explanation
Fig. 1 is that embodiment 1 is at the structural representation gently drawing under piston rod state;
Fig. 2 is A portion enlarged diagram in Fig. 1;
Fig. 3 is that embodiment 1 is heavily drawing piston rod or pulling fast the structural representation under piston rod state;
Fig. 4 is B portion enlarged diagram in Fig. 3;
Fig. 5 is that embodiment 1 is at light structural representation of pressing under piston rod state;
Fig. 6 is C portion enlarged diagram in 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 portion enlarged diagram in Fig. 7;
Fig. 9 is the position view of piston rod in cylinder body in embodiment 2.
In 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 utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the modification that there is no creative contribution as required after reading this specification, but as long as within the scope of claim of the present utility model, are all subject to the protection of Patent Law.
Embodiment 1: as shown in Fig. 1-8, a kind of shrinking structure unit, comprise cylinder body 1, the floating piston 4 of being located in cylinder body 1 and being dynamically connected by seal ring one 42 sealed sliding with cylinder body 1 inwall, and floating piston 4 by cylinder body 1 be divided into be filled with flowing medium Seal cage and and the exhaust cavity 41 that communicates of atmosphere; In cylinder body 1, be also provided with valve body 2, valve body 2 is divided into Seal cage 1 and Seal cage 2 12 by 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 the interior pressure of Seal cage 2 12, and flowing medium can be liquid or gas or gas liquid mixture; On valve body 2, be fixedly connected with piston rod 3, piston rod 3 extends to outside cylinder body 1; In the present embodiment, piston rod 3 extends to outside cylinder body 1 through floating piston 4 and exhaust cavity 41, and floating piston 4 is dynamically connected by seal ring 2 43 sealed sliding with piston rod 3.
On valve body 2, have vertically the flowing lumen 2 22 with close Seal cage 2 12 near the flowing lumen 1 of Seal cage 1; Between flowing lumen 1 and flowing lumen 2 22, be provided with the center-aisle 233 that can make two flowing lumens communicate; 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.
In flowing lumen 1, be provided with can be hard to bear flowing medium impact and movable and can seal the Sealing 1 of center-aisle 233 and 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 when Sealing 1 has the trend of sealing center-aisle 233 to center-aisle 233; When the impact force that is subject to flowing medium when Sealing 1 is greater than the resistance that resistance piece 1 gives, Sealing 1 is movable and seal center-aisle 233 to center-aisle 233; In the form of a ring, the external diameter of Sealing 1 should equate with the internal diameter of cylinder body 1 Sealing 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.
In flowing lumen 2 22, be provided with can be hard to bear flowing medium impact and movable and can seal the Sealing 2 221 of center-aisle 233 and 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 when Sealing 2 221 has the trend of sealing center-aisle 233 to center-aisle 233; When the impact force that is subject to flowing medium when Sealing 2 221 is greater than the resistance that resistance piece 2 242 gives, Sealing 2 221 is movable and seal center-aisle 233 to center-aisle 233; In the form of a ring, the external diameter of Sealing 2 221 should equate with the internal diameter of cylinder body 1 Sealing 2 221 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.
Two side canals are communicated in the opening place axis of respective streams cavity and the spacing between valve body 2 axis and are less than center-aisle and are communicated in the opening place axis of respective streams cavity and the spacing between valve body 2 axis.
Flowing lumen 1 is less than seal 1 along valve body 2 thickness radially near center-aisle 233 places along valve body 2 space radially; Flowing lumen 2 22 is less than seal 2 221 along valve body 2 thickness radially near center-aisle 233 places along valve body 2 space radially, thereby when corresponding Sealing sealing center-aisle, the seal can be stuck in corresponding flowing lumen near center-aisle place, thereby strengthens piston rod 3 and cylinder body 1 relatively-stationary stability in former application of force direction.
As shown in Figure 1, for the present embodiment is at the structural representation gently drawing under piston rod state, now Sealing 2 221 contacts at resistance piece 2 242, and the relative cylinder body 1 of piston rod 3 produces and continues displacement.
As shown in Figure 3, for the present embodiment is heavily drawing piston rod or is pulling fast the structural representation under piston rod state, now the suffered flowing medium impact force of Sealing 2 221 overcomes 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 the relative cylinder body 1 of piston rod 3 in former application of force direction, relatively fixing on draw direction.
As shown in Figure 5, for the present embodiment is at light structural representation of pressing under piston rod state, now Sealing 1 contacts at resistance piece 1, and the relative cylinder body 1 of piston rod 3 produces and continues displacement.
As shown in Figure 7, for the structural representation of the present embodiment under weight piston rod or fast-holding piston rod state, now the suffered flowing medium impact force of Sealing 1 overcomes 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 the relative cylinder body 1 of piston rod 3 in former application of force direction, relatively fixing on compression direction.
Described gently drawing or gently pressing, and refers to because the flowing medium that the application of force of piston rod 3 is caused is less than to the impact force of seal the resistance that resistance piece gives seal; Described heavily draw or weight, refers to because the flowing medium that the application of force of piston rod 3 is caused has overcome to the impact force of seal the resistance that resistance piece gives seal; Described pulls or fast-holding fast, refers to because the flowing medium that the application of force of piston rod 3 is caused 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 with embodiment 1 difference, and piston rod 3 extends to outside cylinder body 1 through Seal cage 1, and piston rod 3 is slidably connected with cylinder body 1 end part seal.
Embodiment 3: a kind of flexible rod, it comprises at least two embodiments 1, and except being positioned at the piston rod 3 of this kind of 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 being positioned at the piston rod 3 of this kind of 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 being positioned at the cylinder body 1 of 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 being positioned at the cylinder body 1 of 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. a 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 for filling the Seal cage one (11) of flowing medium and the valve body (2) of Seal cage two (12), can driving the axially movable piston rod of described valve body (2) (3);
On described valve body (2), have vertically the flowing lumen two (22) with close described Seal cage two (12) near the flowing lumen one (21) of described Seal cage one (11); Between described flowing lumen one (21) and described flowing lumen two (22), be provided with the center-aisle (233) that can make two flowing lumens communicate; 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) in, be provided with 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) and when described Sealing one, (211) there is the described center-aisle of sealing, (233) can be to described Sealing one during 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), when the impact force that is subject to described flowing medium when described Sealing one (211) is greater than the resistance that described resistance piece one (241) gives, described Sealing one (211) is movable and seal described center-aisle (233) to described center-aisle (233),
Described flowing lumen two, (22) in, be provided with 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) and when described Sealing two, (221) there is the described center-aisle of sealing, (233) can be to described Sealing two during 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), when the impact force that is subject to described flowing medium when described Sealing two (221) is greater than the resistance that described resistance piece two (242) gives, 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, all in the form of a ring, two described Sealings all in the form of a ring for two described flowing lumens; Two described side canals are communicated in the opening place axis of corresponding described flowing lumen and the spacing between described valve body (2) axis and are less than described center-aisle and are communicated in the opening place axis of described respective streams cavity and the spacing between described valve body (2) axis.
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 of shrinking structure unit also comprises to be located in described cylinder body (1) and to be slidably connected with described cylinder body (1) inner wall sealing and described cylinder body (1) to be divided into the floating piston (4) of the exhaust cavity (41) communicating with atmosphere and the Seal cage being 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, what described flowing lumen one (21) was located near described center-aisle (233) is less than described seal one (211) along described valve body (2) thickness radially along described valve body (2) space radially; What described flowing lumen two (22) was located near described center-aisle (233) is less than described seal two (221) along described valve body (2) thickness radially along described valve body (2) space radially.
7. a flexible rod, is characterized in that, it comprises at least two shrinking structure as claimed in claim 1 unit.
8. a flexible rod, it is characterized in that, it comprises at least two shrinking structure as claimed in claim 5 unit, and except being positioned at the piston rod (3) of this kind of flexible rod termination, piston rod described in remaining (3) is connected in floating piston (4) or the cylinder body (1) of adjacent described shrinking structure unit.
9. a flexible rod, it is characterized in that, it comprises at least two shrinking structure as claimed in claim 5 unit, except being positioned at the described cylinder body (1) of this flexible rod termination, cylinder body described in remaining (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 |
|---|---|---|---|
| CN201320469350.3U CN203395067U (en) | 2013-08-02 | 2013-08-02 | Telescopic rod and telescopic structure unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469350.3U CN203395067U (en) | 2013-08-02 | 2013-08-02 | Telescopic rod and telescopic structure unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395067U true CN203395067U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320469350.3U Expired - Fee Related CN203395067U (en) | 2013-08-02 | 2013-08-02 | Telescopic rod and telescopic structure unit thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN203395067U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352949A (en) * | 2013-08-02 | 2013-10-16 | 安吉宏峰气弹簧科技有限公司 | Expansion link and telescopic structure unit thereof |
| CN103775552A (en) * | 2012-10-22 | 2014-05-07 | 安吉宏峰气弹簧有限公司 | Compressed type gas spring capable of achieving stopping at will |
| CN104653686A (en) * | 2015-02-06 | 2015-05-27 | 伍志勇 | Buffer with controllable buffering force |
-
2013
- 2013-08-02 CN CN201320469350.3U patent/CN203395067U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775552A (en) * | 2012-10-22 | 2014-05-07 | 安吉宏峰气弹簧有限公司 | Compressed type gas spring capable of achieving stopping at will |
| CN103775552B (en) * | 2012-10-22 | 2016-01-06 | 安吉宏峰气弹簧有限公司 | A kind of can the compression type air spring of random stop |
| CN103352949A (en) * | 2013-08-02 | 2013-10-16 | 安吉宏峰气弹簧科技有限公司 | Expansion link and telescopic structure unit thereof |
| CN104653686A (en) * | 2015-02-06 | 2015-05-27 | 伍志勇 | Buffer with controllable buffering force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20170802 |