CN1332873C - Anti-falling feed-through hydraulic lifting and lowering jack - Google Patents
Anti-falling feed-through hydraulic lifting and lowering jack Download PDFInfo
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- CN1332873C CN1332873C CNB2005100409438A CN200510040943A CN1332873C CN 1332873 C CN1332873 C CN 1332873C CN B2005100409438 A CNB2005100409438 A CN B2005100409438A CN 200510040943 A CN200510040943 A CN 200510040943A CN 1332873 C CN1332873 C CN 1332873C
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Abstract
The present invention relates to an anti-fall feed-through hydraulic lifting and lowering jack which has the technical scheme that the jack of the present invention comprises a support rod, a cylinder, a large cylinder cap, a base, a large piston, an upper locking mechanism, a main compression spring and a lower locking mechanism, wherein the upper locking mechanism and the lower locking mechanism are respectively composed of a spring, a piston, a cylinder cap, a thimble guide sleeve, a thimble, a clip body, a steel ball and a tower-shaped spring. The locking mechanisms with a one-way locking function only can move upwards along the support rod but can not move down. Thus, the jack of the present invention has the advantages that the jack can be firmly locked in any position in the lifting or lowering process of the support rod due to the mechanical self-locking performance, and can descend along the support rod only when a hydraulic system is forcibly opened. The jack of the present invention has strong anti-fall function, and enhances the safe reliability of construction.
Description
Technical field
The present invention relates to a kind of building engineering facility, more particularly, relate to a kind of anti-falling feed-through hydraulic and rise and the decline jack.
Background technology
The present inventor has proposed " feed-through hydraulic rises an and the decline jack " patent application the improvement design with regard to a kind of feed-through hydraulic jack in 2003, and is awarded patent (Granted publication CN2661668Y).This patented technology has solved former feed-through hydraulic jack can only bring very big convenience to building operation along the up unidirectional walking manner that can not descend of cramp bar.But, to guarantee all that in case hydraulic efficiency pressure system is out of order, then described jack just probably can fall from a certain position by hydraulic efficiency pressure system at this jack each locking position on mobile staying, bring hidden danger for the safety of building operation.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned the deficiencies in the prior art, and design can lock in a certain position certainly, and rises and the decline jack by a kind of anti-falling feed-through hydraulic that hydraulic efficiency pressure system is opened by force, and it is realized by following technical scheme:
Comprise cramp bar, cylinder barrel, big cylinder cap, the locking supporting plate, pallet, snap ring, base, big piston, the tight mechanism of last kayser, main compression spring and the tight mechanism of following kayser, described cylinder barrel upper end connects big cylinder cap, its outside, lower end connects base, the base lower end connects the locking supporting plate, be equipped with pallet on the locking supporting plate, big piston shank and the inboard socket of big cylinder cap, cramp bar places the center of cylinder barrel, described big piston skirt section, last kayser locking structure, main compression spring, following kayser locking structure places by big cylinder cap, in the space that pallet and cylinder barrel contained, and the cross-under cramp bar is characterized in that from top to down
The described tight mechanism of kayser of going up is by last card spring, last card piston, last card cylinder cap, the thimble orienting sleeve, thimble, last card body, steel ball, last card tower spring and secondary cylinder barrel are formed, described going up blocked piston shank and the socket of last card cylinder cap endoporus, the rising compression spring places card cylinder cap end, its free end can be against on the flange of card piston shank end, the thimble orienting sleeve places the card piston underside and is connected with last card body, which is provided with pilot hole, thimble places in this pilot hole, last card body is bearing on the main compression spring, which is provided with inclined hole, last card tower spring places in this inclined hole, the steel ball downside is tight against the free end of card tower spring, its upside is tight against the thimble lower end, its inboard can be tight against on cramp bar, on block cylinder cap and last card body is fixed on secondary cylinder barrel inboard, on block piston bottom and be socketed in secondary cylinder barrel inboard, secondary cylinder barrel is socketed in the cylinder barrel inboard, on block piston, thimble orienting sleeve and last card body cross-under cramp bar;
The described down tight mechanism of kayser by under block cylinder cap, under block piston, the thimble orienting sleeve, under block body, under block spring, thimble, steel ball and following card tower spring are formed, the last side bearing master compression spring of the described cylinder cap of card down, its endoporus socket is card piston shank down, the thimble orienting sleeve places down the downside of card piston and is connected with following card body, which is provided with pilot hole, thimble places in this pilot hole, under block body and be connected on the described pallet, which is provided with inclined hole, under block the tower spring and place in this inclined hole, the steel ball downside is tight against down the free end of card tower spring, and its upside is tight against the thimble lower end, and its inboard can be tight against on cramp bar, following cylinder cap is connected with cylinder barrel is inboard with following card piston bottom, under block spring and place on the described pallet, its free end can be against down on the card piston bottom end face, following card piston, thimble orienting sleeve and following card body cross-under cramp bar.
The described flange of going up card piston shank end is to be connected card piston shank end by a circular upward card spring pedestal to form.
The described lower end of going up the card piston, blocking piston down connects ejector retainner plate respectively.
Be respectively arranged with on described big cylinder cap, upper cylinder cover and the following cylinder cap main piston chamber oil inlet and oil return passage, on stick into drainback passage and under stick into drainback passage
Interlocking has snap ring on the faying face of described cylinder barrel and base junction.
Rabbet seal ring on the faying face of described piston bottom and pairing described cylinder barrel junction.
Rabbet seal ring on the faying face of described piston shank and the inboard socket place of pairing described cylinder cap.
Rabbet seal ring on the faying face of described cylinder barrel and big cylinder cap junction.
The invention has the beneficial effects as follows: utilizing the mechanical self-latching performance to make on the present invention or arbitrary position of descending up at cramp bar can both secure lock, have only hydraulic efficiency pressure system to open by force, just can make it to descend, have very strong fall arrest function, strengthen the safe reliability of building operation along cramp bar.
Description of drawings
Accompanying drawing is a structural representation of the present invention
Among the figure, 1 is big cylinder cap among the figure, the 2nd, and cylinder barrel, the 3rd, big piston, the 4th, last card spring pedestal, the 5th, secondary cylinder barrel, the 6th, rising compression spring, the 7th, last card piston, the 8th, last card cylinder cap, the 9th, thimble pressing plate, 10 thimbles, the 11st, thimble orienting sleeve, the 12nd, last card body, the 13rd, main compression spring, the 14th, following card cylinder cap, the 15th, stick into drainback passage down, the 16th, following card piston, the 17th, following card compression spring, the 18th, following card body, the 19th, pallet, the 20th, snap ring, the 21st, base, the 22nd, locking supporting plate, the 23rd, following card pagoda-shaped spring, the 24th, steel ball, the 25th, hydraulic efficiency pressure system, the 26th, the tight mechanism of last kayser, 27,28,29,35, the 36th, seal ring, the 30th, last card pagoda-shaped spring, the 31st, the tight mechanism of following kayser, the 32nd, stop up, the 33rd, on stick into drainback passage, the 34th, seal ring between main piston and cylinder barrel, the 37th, main piston chamber oil inlet and oil return passage, the 38th, cramp bar, A, B, C is an oil nozzle.
The specific embodiment
Below in conjunction with drawings and Examples the utility model and advantage thereof are described further.
The contrast accompanying drawing, cylinder barrel 2 upper ends are connected with big cylinder cap 1 with oil nozzle by stopping up 32, and the lower end is connected with base 22 and supporting plate 19, and tight mechanism of kayser, master compress A spring 13, upward tight mechanism of kayser and big piston 3 under containing in it, cylinder barrel 2 centers are equipped with cramp bar 38, and cross-under is in above-mentioned parts.
62 millimeters of the shank external diameters of big piston 3,50 millimeters of internal diameters, 120 millimeters of skirt section external diameters, high 130 millimeters, make with Fine Steel Casting iron.The shank of big piston 3 is socketed in the endoporus of big cylinder cap 1, and its faying face is provided with oil sealing 35.Big piston 3 skirt sections are socketed on the inboard of cylinder barrel 2, are provided with oil sealing 36.Oil nozzle A is connected on the big cylinder cap 1 and communicates with main oil inlet and oil return cavity 37 on it.
At the downside of last big piston 3 the tight mechanism 26 of kayser is set, it by last card spring pedestal 4, on block spring 6, on block piston 7, on block cylinder cap 8, thimble pressing plate 9, thimble orienting sleeve 11, thimble 10, on block body 12, steel ball 24, on block tower spring 30 and secondary cylinder sleeve 5 is formed.Last card cylinder cap 8 is by oil nozzle B and stop up 32 and be connected with secondary cylinder sleeve 5, and its connection fitting surface is provided with oil sealing, on block piston 7 shank be socketed in the endoporus of card cylinder cap 8, its skirt section is socketed in the inboard of secondary cylinder sleeve 5, is respectively equipped with oil sealing on the fitting surface of its socket.The shank upper end of last card piston 7 connects by screw goes up card spring pedestal 4, and its lower end, skirt section connects thimble pressing plate 9 by screw.6 cross-under of rising compression spring are at last card piston shank, and its two ends are tight against card piston bottom and last card spring pedestal 4 respectively.Thimble orienting sleeve 11 places card piston 7 downsides and is connected with the card body 12 of going up that places its downside by screw.Last card body 12 is bearing on the main compression spring 13 and with the lower end of secondary cylinder sleeve 5 and is connected, and which is provided with inclined hole, on block tower spring 30 and place in this inclined hole.Thimble orienting sleeve 11 is provided with pilot hole, and thimble 10 places in this pilot hole.Steel ball 24 downsides are tight against the free end of card tower spring 23, its upside is tight against thimble 11 lower ends, and its inboard is tight against on cramp bar 38 under the elastic force effect of last tower spring 30, and this makes this catch gear have the one-way locking performance, can only move up along cramp bar 38, can not move down.Secondary cylinder barrel 5 is socketed in the inboard of cylinder barrel 2, can slide up and down relatively.Card spring pedestal 4, on block piston 7, thimble pressing plate 9, thimble orienting sleeve 11 and go up card body 12 cross-under cramp bars 38.
The tight mechanism 31 of following kayser places the downside of main compression spring 13 and is installed on the pallet 19, it by under block cylinder cap 14, down block piston 16, thimble pressing plate 9, thimble orienting sleeve 11, down block body 18, down block spring 17, thimble 25, steel ball 24 and down card tower spring 23 form.Main compression spring 13 is bearing in down on the card cylinder cap 14, blocking the endoporus of cylinder cap 14 down matches with the shank external diameter that blocks piston 16 down, fitting surface is provided with oil sealing 29, the skirt section downside that blocks piston 16 down connects thimble pressing plate 9 by screw, its shank external diameter is 78 millimeters, matches with the inboard of cylinder barrel 2 in its skirt section, and oil sealing 28,27 is arranged respectively on its fitting surface, 120 millimeters of external diameters that block cylinder cap 14 down, following card cylinder cap 4 and cylinder barrel 2 by oil nozzle C with stop up 32 and make it to be connected, fix.Thimble orienting sleeve 11 places down the downside of card piston 16 and is connected with following card body 18 by screw, which is provided with pilot hole, and thimble 10 places in this hole.Under block body 18 and be connected with pallet 19, which is provided with inclined hole, following card tower spring 23 places in this inclined hole.Steel ball 24 downsides are tight against the free end of tower spring 23 up and down, its upside is tight against thimble 10 lower ends, and its inboard is tight against on cramp bar 38 under the elastic force effect of following tower spring 23, and this makes this catch gear have the one-way locking performance, can only move up along cramp bar 38, can not move down.Under block spring 17 and place on the pallet 19, its upper end is tight against down blocks piston 16.Under block piston 16, thimble pressing plate 9, thimble orienting sleeve 11 and card body 18 cross-under cramp bars 38 down.
Under state of nature (under hydraulic efficiency pressure system 5 off positions), thimble 10 is thrown off respectively by tight mechanism 26 of last kayser and the tight mechanism 31 of following kayser under the effect of last card compression spring 6 and the elastic force that blocks compression spring 17 down, steel ball 24 in last card body 12 and the following card body 18 upwards and to the center moves at the effect lower edge inclined hole of last card pagoda-shaped spring force 23 and following card pagoda-shaped spring force 30 respectively, compress cramp bar 38, above-mentioned two catch gears are locked on the cramp bar 38, thereby make the jack auto lock on a certain position of cramp bar 38.
As apparatus of the present invention (jack) are risen: 1) oil nozzle A oil-feed, the locking of the tight mechanism of upper and lower kayser then plays the tight mechanism of kayser to rise together with cylinder barrel 2; 2) oil nozzle A oil return, 31 lockings of the tight mechanism of following kayser, tight mechanism 26 of last kayser and big piston 3 are boosted under the effect of main compression spring 13, recover state of nature.The process that repeats above-mentioned 1-2 rises apparatus of the present invention continuously.
As apparatus of the present invention are descended: 1) oil nozzle B oil-feed, the tight mechanism 26 of last kayser unclamps by force; 2) oil nozzle A oil-feed promotes secondary cylinder barrel 5 and promptly goes up the tight mechanism 26 of kayser and move down, and main compression spring 13 is compressed; 3) oil nozzle B oil return, the tight mechanism 26 of last kayser is auto lock again; 4) oil nozzle C oil-feed, following catch gear 31 unclamps by force; 5) oil nozzle A oil return, cylinder barrel is moved down together with the following tight mechanism 31 of kayser, but the tight mechanism 26 of kayser is in locking state and can not moves on this moment, then cylinder barrel 2 and the tight mechanism 31 of following kayser that is attached thereto since relative motion and deadweight move down; 6) oil nozzle C oil return makes jack recover state of nature.The process that repeats above-mentioned 1-6 descends apparatus of the present invention continuously.
The tight mechanism of upper and lower kayser of apparatus of the present invention can only rise along cramp bar under state of nature.Can not descend; Descend and to open above-mentioned catch gear by force by hydraulic pressure as need.This makes apparatus of the present invention have the function of fall arrest, thereby makes apparatus of the present invention more safe and reliable.
Claims (8)
1, anti-falling feed-through hydraulic rises and the decline jack, comprise cramp bar, cylinder barrel, big cylinder cap, the locking supporting plate, pallet, snap ring, base, big piston, the tight mechanism of last kayser, main compression spring and the tight mechanism of following kayser, described cylinder barrel upper end connects big cylinder cap, its outside, lower end connects base, the base lower end connects the locking supporting plate, be equipped with pallet on the locking supporting plate, big piston shank and the inboard socket of big cylinder cap, cramp bar places the center of cylinder barrel, described big piston skirt section, last kayser locking structure, main compression spring, following kayser locking structure places by big cylinder cap, in the space that pallet and cylinder barrel contained, and cross-under cramp bar from top to down is characterized in that:
The described tight mechanism of kayser of going up is by last card spring, last card piston, last card cylinder cap, the thimble orienting sleeve, thimble, last card body, steel ball, last card tower spring and secondary cylinder sleeve are formed, described going up blocked piston shank and the socket of last card cylinder cap endoporus, the rising compression spring places card cylinder cap end, its free end can be against on the flange of card piston shank end, the thimble orienting sleeve places the card piston underside and is connected with last card body, which is provided with pilot hole, thimble places in this pilot hole, last card body is bearing on the main compression spring, which is provided with inclined hole, last card tower spring places in this inclined hole, the steel ball downside is tight against the free end of card tower spring, its upside is tight against the thimble lower end, its inboard can be tight against on cramp bar, on block cylinder cap and last card body is fixed on secondary cylinder sleeve inboard, on block piston bottom and be socketed in secondary cylinder barrel inboard, secondary cylinder barrel is socketed in the cylinder barrel inboard, on block piston, thimble orienting sleeve and last card body cross-under cramp bar;
The described down tight mechanism of kayser by under block cylinder cap, under block piston, the thimble orienting sleeve, under block body, under block spring, thimble, steel ball and following card tower spring are formed, the last side bearing master compression spring of the described cylinder cap of card down, its endoporus socket is card piston shank down, the thimble orienting sleeve places down the downside of card piston and is connected with following card body, which is provided with pilot hole, thimble places in this pilot hole, under block body and be connected on the described pallet, which is provided with inclined hole, under block the tower spring and place in this inclined hole, the steel ball downside is tight against down the free end of card tower spring, and its upside is tight against the thimble lower end, and its inboard can be tight against on cramp bar, following cylinder cap is connected with cylinder barrel is inboard with following card piston bottom, under block spring and place on the described pallet, its free end can be against down on the card piston bottom end face, following card piston, thimble orienting sleeve and following card body cross-under cramp bar.
2, anti-falling feed-through hydraulic rising according to claim 1 and decline jack is characterized in that the described flange of going up card piston shank end is to be connected card piston shank end by a circular upward card spring pedestal to form.
3, anti-falling feed-through hydraulic according to claim 1 rises and the decline jack, it is characterized in that the described lower end of going up the card piston, blocking piston down connects the thimble pressing plate respectively.
4, anti-falling feed-through hydraulic according to claim 1 rises and the decline jack, it is characterized in that being respectively arranged with on described big cylinder cap, upper cylinder cover and the following cylinder cap main piston chamber oil inlet and oil return passage, on stick into drainback passage and under stick into drainback passage.
5, anti-falling feed-through hydraulic according to claim 1 rises and the decline jack, and it is characterized in that rabbeting on the faying face of described cylinder barrel and base junction has snap ring.
6, anti-falling feed-through hydraulic according to claim 1 rises and the decline jack, it is characterized in that rabbeting seal ring on the faying face of described piston bottom and pairing described cylinder barrel junction.
7, anti-falling feed-through hydraulic according to claim 1 rises and the decline jack, it is characterized in that rabbeting seal ring on the faying face of described piston shank and pairing described cylinder cap inboard socket place.
8, anti-falling feed-through hydraulic according to claim 1 rises and the decline jack, it is characterized in that rabbeting seal ring on the faying face of described cylinder barrel and big cylinder cap junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100409438A CN1332873C (en) | 2005-07-08 | 2005-07-08 | Anti-falling feed-through hydraulic lifting and lowering jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100409438A CN1332873C (en) | 2005-07-08 | 2005-07-08 | Anti-falling feed-through hydraulic lifting and lowering jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1715173A CN1715173A (en) | 2006-01-04 |
| CN1332873C true CN1332873C (en) | 2007-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100409438A Active CN1332873C (en) | 2005-07-08 | 2005-07-08 | Anti-falling feed-through hydraulic lifting and lowering jack |
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| Country | Link |
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| CN (1) | CN1332873C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI607951B (en) * | 2012-02-28 | 2017-12-11 | 絕對設備私人有限公司 | Locking jacking,and jacking system comprising the same |
| CN103663244B (en) * | 2013-10-12 | 2016-01-06 | 青岛理工大学 | A kind of spiral punching jack |
| CN106321563A (en) * | 2016-10-27 | 2017-01-11 | 哈尔滨理工大学 | Annular hydraulic cylinder provided with mechanical self-locking devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1297777A (en) * | 1969-02-21 | 1972-11-29 | ||
| GB2102385A (en) * | 1981-07-23 | 1983-02-02 | Kenneth Leslie Pinel | Climbing jack |
| CN2183986Y (en) * | 1993-12-29 | 1994-11-30 | 江都滑模成套设备厂 | Hydraulic jack |
| CN2217007Y (en) * | 1994-09-24 | 1996-01-10 | 杜永深 | Pneumatic jack lifting and lowering with load |
| CN2661668Y (en) * | 2003-12-19 | 2004-12-08 | 花周建 | Inside-through hydraulic ascending and descending jack |
| CN2832771Y (en) * | 2005-07-08 | 2006-11-01 | 花周建 | Anti-falling through-type hydraulic rising and falling jack |
-
2005
- 2005-07-08 CN CNB2005100409438A patent/CN1332873C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1297777A (en) * | 1969-02-21 | 1972-11-29 | ||
| GB2102385A (en) * | 1981-07-23 | 1983-02-02 | Kenneth Leslie Pinel | Climbing jack |
| CN2183986Y (en) * | 1993-12-29 | 1994-11-30 | 江都滑模成套设备厂 | Hydraulic jack |
| CN2217007Y (en) * | 1994-09-24 | 1996-01-10 | 杜永深 | Pneumatic jack lifting and lowering with load |
| CN2661668Y (en) * | 2003-12-19 | 2004-12-08 | 花周建 | Inside-through hydraulic ascending and descending jack |
| CN2832771Y (en) * | 2005-07-08 | 2006-11-01 | 花周建 | Anti-falling through-type hydraulic rising and falling jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1715173A (en) | 2006-01-04 |
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Owner name: NANTONGSIJIAN GROUP CO.,LTD. Free format text: FORMER OWNER: HUA ZHOUJIAN Effective date: 20080801 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080801 Address after: No. 93 West Jin Sha Road, Jinsha Town, Jiangsu, Tongzhou Patentee after: Sijian Co., Ltd., Nantong Address before: Xinjin Tongzhou West Road, Jiangsu No. 93 Nantong Sijian Patentee before: Hua Zhoujian |