CN102878150A - Lockable lift cylinder - Google Patents
Lockable lift cylinder Download PDFInfo
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- CN102878150A CN102878150A CN2012103795957A CN201210379595A CN102878150A CN 102878150 A CN102878150 A CN 102878150A CN 2012103795957 A CN2012103795957 A CN 2012103795957A CN 201210379595 A CN201210379595 A CN 201210379595A CN 102878150 A CN102878150 A CN 102878150A
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- sleeve
- piston rod
- cylinder
- piston
- steel ball
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Abstract
The invention discloses a lockable lift cylinder which comprises a cylinder barrel, a piston rod, a piston and a cylinder bottom. A guide sleeve, a bushing and a clamping sleeve are sequentially arranged in the cylinder barrel in a clinging manner, the end of the cylinder barrel is connected with a pressing sleeve for pressing the guide sleeve, the bushing and the clamping sleeve, inner holes of the pressing sleeve and the guide sleeve are in sliding contact with the piston rod, at least three steel balls are uniformly distributed on the periphery of the piston, grooves capable of holding the steel balls in a clamping manner are arranged on the clamping sleeve, and a slide sleeve used for squeezing the steel balls into the grooves to further lock the cylinder when extending of the piston rod is ended is arranged among the inner holes of the bushing and the clamping sleeve and the piston rod. At the end of a stroke of the cylinder, the steel balls uniformly distributed on the periphery of the piston are squeezed into the grooves correspondingly arranged on the clamping sleeve under the action of the slide sleeve, so that the cylinder in place is locked, and retraction of the cylinder is prevented.
Description
Technical field
The present invention relates to technical field of hydraulic oil cylinder, especially a kind of elevating ram of locking.
Background technique
Hydraulic jack is widely used in all trades and professions as a kind of power plant.In some special industry, the elevating ram etc. of picture radar truck, owing to be movement in vertical direction, the stability after all requiring oil cylinder to have to put in place, can effectively oil cylinder be locked in certain position at end of travel, oil cylinder can not produce rebound phenomenon because of Gravity Problem in the high-altitude.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in the prior art, a kind of elevating ram of locking is provided, produce rebound phenomenon effectively to prevent oil cylinder after putting in place.
The technical solution adopted for the present invention to solve the technical problems is: a kind of elevating ram of locking, comprise cylinder barrel, piston rod, piston and cylinder bottom, be provided with in the cylinder barrel and be arranged in order the guide sleeve that is adjacent to, lining and cutting ferrule, the cylinder barrel end is connected with and compresses described guide sleeve, the gland of lining and cutting ferrule, the endoporus of gland and guide sleeve all with the piston rod sliding contact, piston circumferentially is evenly equipped with at least three steel balls, offer the groove that can snap in steel ball on the cutting ferrule, be provided with between the endoporus of lining and cutting ferrule and the piston rod to stretch out at piston rod and at the end steel ball clamp-oned in the groove and the flip sleeve of locking cylinder.
Specifically, described steel ball number is six, offers the through hole of placing steel ball on the circumferential wall of piston.
Further, be provided with the guide rod suitable with steel ball number in the described guide sleeve, cover has an end to contact with flip sleeve and promotes flip sleeve steel ball is clamp-oned Compress Spring in the groove on the guide rod.
Be to improve dust-proof effect, described piston rod stretch out the cylinder barrel place be set with can be with the fore and aft motion of piston rod the protective housing of synchronization telescope.
The invention has the beneficial effects as follows: the present invention is when oil cylinder stroke is terminal, effect by flip sleeve, with piston circumferentially uniform steel ball clamp-on on the cutting ferrule in the corresponding groove of offering, thereby the oil cylinder that puts in place is produced locking effect, prevented that oil cylinder from producing rebound phenomenon.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention.
1. cylinder barrels, 2. piston rods, 3. pistons, 31. through holes, 4. cylinder bottoms, 5. guide sleeves, 6. linings, 7. cutting ferrules, 8. glands, 9. steel balls, 10. grooves, 11. flip sleeves, 12. guide rods, 13. Compress Springs, 14. protective housings among the figure
Embodiment
The present invention is further illustrated with preferred embodiment by reference to the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of elevating ram of locking as shown in Figure 1, the cylinder bottom 4 that comprises cylinder barrel 1, piston rod 2, is fixed on the piston 3 of piston rod 2 rear ends and is fixed on cylinder barrel 1 bottom, piston 3 is slidingly matched with cylinder barrel 1 inwall.
Be provided with in the cylinder barrel 1 and be arranged in order the guide sleeve 5 that is adjacent to, lining 6 and cutting ferrule 7, wherein, cutting ferrule 7 one ends contact with step on cylinder barrel 1 inwall and are limited, be fixed with gland 8 in cylinder barrel 1 end, gland 8 is with described guide sleeve 5, lining 6 and cutting ferrule 7 compress, wherein, the endoporus of gland 8 and guide sleeve 5 all with piston rod 2 sliding contacts, uniformly on the piston 3 circumferential walls offer six through holes 31, be placed with steel ball 9 in the described through hole 31, offer corresponding with steel ball 9 on the cutting ferrule 7, can snap in the groove 10 of steel ball 9, the endoporus aperture of lining 6 and cutting ferrule 7 is consistent, between the endoporus and piston rod 2 of lining 6 and cutting ferrule 7, be provided with the flip sleeve 11 that is slidingly matched with piston rod 2, be provided with the guide rod 12 suitable with steel ball 9 quantity in the described guide sleeve 5, cover has Compress Spring 13 on the guide rod 12, Compress Spring 13 1 ends contact with flip sleeve 11, stretch out at the end at piston rod 2, by Compress Spring 13 effects, flip sleeve 11 inserts steel ball 9 bottoms that are arranged in piston 3 through holes 31, steel ball 9 is clamp-oned in the groove 10 corresponding on the cutting ferrule 7, produced locking effect and locking cylinder.
Simultaneously, stretch out cylinder barrel 1 place at piston rod 2 and also be set with protective housing 14, protective housing 14 can be with the fore and aft motion of piston rod 2 synchronization telescope, enter cylinder barrel 1 inside on the piston rod 2 to prevent that effectively extraneous dust and other impurities from sticking to, thereby effectively improved the dust-proof effect of oil cylinder integral body, increased the service life.
The present invention is when oil cylinder stroke is terminal, effect that can be by flip sleeve 11 is clamp-oned piston 3 circumferential uniform steel balls 9 on the cutting ferrule 7 in the corresponding groove of offering 10, thus the oil cylinder generation locking effect to putting in place, prevented that oil cylinder from producing rebound phenomenon, satisfies usage requirement.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. the elevating ram that can lock, comprise cylinder barrel (1), piston rod (2), piston (3) and cylinder bottom (4), it is characterized in that: be provided with in the described cylinder barrel (1) and be arranged in order the guide sleeve (5) that is adjacent to, lining (6) and cutting ferrule (7), cylinder barrel (1) end is connected with and compresses described guide sleeve (5), the gland (8) of lining (6) and cutting ferrule (7), the endoporus of gland (8) and guide sleeve (5) all with piston rod (2) sliding contact, piston (3) circumferentially is evenly equipped with at least three steel balls (9), offer the groove (10) that can snap in steel ball (9) on the cutting ferrule (7), be provided with between the endoporus of lining (6) and cutting ferrule (7) and the piston rod (2) to stretch out at piston rod (2) and at the end steel ball (9) clamp-oned in the groove (10) and the flip sleeve (11) of locking cylinder.
2. elevating ram of locking according to claim 1, it is characterized in that: described steel ball (9) quantity is six, piston (3) circumferentially offers the through hole (31) of placing steel ball (9) on the wall.
3. elevating ram of locking according to claim 2, it is characterized in that: be provided with the guide rod (12) suitable with steel ball (9) quantity in the described guide sleeve (5), the upper cover of guide rod (12) has an end to contact with flip sleeve (11) and promotes flip sleeve (11) steel ball (9) is clamp-oned the interior Compress Spring (13) of groove (10).
4. elevating ram of locking according to claim 1 is characterized in that: described piston rod (2) stretches out that cylinder barrel (1) locates to be set with can be with the protective housing (14) of piston rod (2) synchronization telescope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103795957A CN102878150A (en) | 2012-09-29 | 2012-09-29 | Lockable lift cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103795957A CN102878150A (en) | 2012-09-29 | 2012-09-29 | Lockable lift cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878150A true CN102878150A (en) | 2013-01-16 |
Family
ID=47479603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103795957A Pending CN102878150A (en) | 2012-09-29 | 2012-09-29 | Lockable lift cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102878150A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422545A (en) * | 2015-12-28 | 2016-03-23 | 湖州环丰机械有限公司 | Upper amplitude-varying oil cylinder |
| CN111379760A (en) * | 2018-12-28 | 2020-07-07 | 比亚迪股份有限公司 | Oil cylinder, hydraulic system and lifting equipment |
| CN112002982A (en) * | 2020-08-17 | 2020-11-27 | 中国电子科技集团公司第三十八研究所 | Multi-rod type radar side block antenna overturning and locking mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004009302U1 (en) * | 2004-06-11 | 2004-08-26 | Bümach Engineering International B.V. | Pressurized cylinder with mechanical travel lock in the depressurized state |
| WO2005052383A1 (en) * | 2003-11-27 | 2005-06-09 | Koganei Corporation | Fluid pressure cylinder |
| CN201116556Y (en) * | 2007-10-08 | 2008-09-17 | 新疆石油管理局井下作业公司 | Slag-proof hydraulic device |
| CN201407243Y (en) * | 2009-05-27 | 2010-02-17 | 陕西燎原国际航空制造有限公司 | Oil cylinder mechanical self-locking device |
| CN201636115U (en) * | 2010-03-10 | 2010-11-17 | 无锡市长江液压缸厂 | Mechanical self-locking hydraulic cylinder |
| CN202280692U (en) * | 2011-09-30 | 2012-06-20 | 北京航天发射技术研究所 | Steel ball locking type hydraulic cylinder |
| CN202833427U (en) * | 2012-09-29 | 2013-03-27 | 江苏昌力油缸有限公司 | Lifting oil cylinder capable of being fastened |
-
2012
- 2012-09-29 CN CN2012103795957A patent/CN102878150A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005052383A1 (en) * | 2003-11-27 | 2005-06-09 | Koganei Corporation | Fluid pressure cylinder |
| DE202004009302U1 (en) * | 2004-06-11 | 2004-08-26 | Bümach Engineering International B.V. | Pressurized cylinder with mechanical travel lock in the depressurized state |
| CN201116556Y (en) * | 2007-10-08 | 2008-09-17 | 新疆石油管理局井下作业公司 | Slag-proof hydraulic device |
| CN201407243Y (en) * | 2009-05-27 | 2010-02-17 | 陕西燎原国际航空制造有限公司 | Oil cylinder mechanical self-locking device |
| CN201636115U (en) * | 2010-03-10 | 2010-11-17 | 无锡市长江液压缸厂 | Mechanical self-locking hydraulic cylinder |
| CN202280692U (en) * | 2011-09-30 | 2012-06-20 | 北京航天发射技术研究所 | Steel ball locking type hydraulic cylinder |
| CN202833427U (en) * | 2012-09-29 | 2013-03-27 | 江苏昌力油缸有限公司 | Lifting oil cylinder capable of being fastened |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422545A (en) * | 2015-12-28 | 2016-03-23 | 湖州环丰机械有限公司 | Upper amplitude-varying oil cylinder |
| CN111379760A (en) * | 2018-12-28 | 2020-07-07 | 比亚迪股份有限公司 | Oil cylinder, hydraulic system and lifting equipment |
| CN111379760B (en) * | 2018-12-28 | 2021-07-09 | 比亚迪股份有限公司 | Oil cylinder, hydraulic system and lifting equipment |
| CN112002982A (en) * | 2020-08-17 | 2020-11-27 | 中国电子科技集团公司第三十八研究所 | Multi-rod type radar side block antenna overturning and locking mechanism |
| CN112002982B (en) * | 2020-08-17 | 2021-08-27 | 中国电子科技集团公司第三十八研究所 | Multi-rod type radar side block antenna overturning and locking mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |