CN2278683Y - Quick rise-and-fall jack and its cranking bar - Google Patents
Quick rise-and-fall jack and its cranking bar Download PDFInfo
- Publication number
- CN2278683Y CN2278683Y CN 96242336 CN96242336U CN2278683Y CN 2278683 Y CN2278683 Y CN 2278683Y CN 96242336 CN96242336 CN 96242336 CN 96242336 U CN96242336 U CN 96242336U CN 2278683 Y CN2278683 Y CN 2278683Y
- Authority
- CN
- China
- Prior art keywords
- lifting
- jack
- screw rod
- rocking bar
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a rapid lifting jack and a rocking bar, which comprise a bottom base, a support top, a lifting connecting rod mechanism, a hinge axle and a screw rod. The utility model has the technical proposal that the screw rod of one end of the hinge axle is respectively provided with a drive moment, a drive device and a synchronous opening and closing nut which is composed of a lifting sleeve, a poking pin fixed on the lifting sleeve and an opening and closing mechanism interlocking with the lifting sleeve. The technical proposal of the rocking bar exclusively used for the jack is that the rocking bar is provided with a hook head and a universal joint. The jack and the rocking bar realize the purposes of simple structures, the reasonable arrangement of the opening and closing nuts and labor intensity decrease in use. The utility model can be used for various hoisting occasions.
Description
The utility model belongs to a kind of lifting gear, particularly a kind of quick jack.
Patent gazette disclosed a kind of fast lifting jack on February 21st, 1996, and application number: 9414934.X, this jack are by end seat, jacking, lifting connecting rod mechanism, and hinge axis, screw rod and fast automatic synchronous on-off formula half-nut device constitute.Can realize the elevating function at a slow speed soon of jack during use, its weak point is: the complex structure of the fast automatic synchronous on-off formula half-nut device of jack, and be provided with unreasonable, inconvenient operation.
The purpose of this utility model provide a kind of have simple in structure, reasonable, easy to operate fast lifting jack and crank thereof be set.
Above-mentioned fast lifting jack comprises: end seat, jacking, lifting connecting rod mechanism, hinge axis, screw rod, wherein be disposed with the driving device and the synchronous on-off nut of driving torque on the screw rod of an end of hinge axis, the synchronous on-off nut by the lifting cover, be fixed on the finger that lifting puts, can form with the open-and-close mechanism that interlock is overlapped in lifting.
With the matching used crank of above-mentioned jack, the one end is connected with through universal-joint can drive the joint that screw rod rotates, and the other end has gib head in order to stir the finger that lifting puts.
The utility model has the advantages that: on the screw rod of the same end that the driving device and the synchronous on-off nut of carry-over moment is arranged on hinge axis, saved the syn overload clutch mechanism in the former fast quick-action synchronous on-off half spiral shell device, substituted soon operating control mechanism at a slow speed with being fixed on the finger that lifting puts, realized simple in structure, the favorably situated purpose of clasp nut.When crank is provided with universal-joint and gib head use, can reduce labor intensity.
Following accompanying drawing has been described an example of the present utility model:
Fig. 1 is a contour structures sketch of the present utility model.
Fig. 2 is the diagrammatic sectional view of synchronous on-off nut of the present utility model
Fig. 3 is the special-purpose cranking bar of control jack lifting
Among Fig. 1: the end sits 1, jacking 2 be rectangular derby, and sit 1 and is connected through hinges 4 by 4 connecting rods 3 with jacking 2 at its end, screw rod 5 and pierce into hinge axis (O
1O
2), the left end head of screw rod 5 is provided with the driving device 6 of driving torque, and this device can be outer-hexagonal or prong shape.The hinge axis O of left end
2The place is provided with synchronous on-off nut 7, and screw rod 5 pierces into from clasp nut, and from hinge axis O
1In stretch out, through hinge axis O
1Part be optical axis.
Synchronous on-off nut 7 among Fig. 2, its lifting cover 8 is socketed on the screw rod 5.The post surface, outer garden of the left end of lifting cover 8 is provided with a finger 9, is provided with the closing device of being made up of supporting base, half-nut, the automatic open-and-close mechanism of half-nut 10 in the lifting cover.Rotate finger 9, lifting cover 8 rotates thereupon and through the automatic open-and-close mechanism of half-nut, drive half-nut and screw rod 5 mesh or disconnect, and realize the lifting at a slow speed soon of jack.
Its left end of the crank of describing among Fig. 3 has gib head 11, and handle 12 is a crank throw shape, and the right-hand member of crank is through center cross hexagonal crank joint in joint is connected with.
Claims (2)
1, a kind of rapid rising jack comprises the end seat (1), jacking (2), lifting connecting rod mechanism (3), hinge axis (O
1O
2), screw rod (5), it is characterized in that: hinge axis (O
1O
2) be disposed with the driving device (6) and the synchronous on-off nut (7) of driving torque on the screw rod (5) of an end, synchronous on-off nut (7) by lifting cover (8), be fixed on the finger (9) on the lifting cover (8), can form with the open-and-close mechanism (10) that interlock is overlapped in lifting.
2: a kind of crank that is exclusively used in the described jack of claim 1 is characterized in that: an end of crank is connected with through universal-joint (13) can drive the joint (14) that screw rod (5) rotates, the finger (9) that has little gib head (11) to put in order to stir lifting on the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242336 CN2278683Y (en) | 1996-10-18 | 1996-10-18 | Quick rise-and-fall jack and its cranking bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242336 CN2278683Y (en) | 1996-10-18 | 1996-10-18 | Quick rise-and-fall jack and its cranking bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2278683Y true CN2278683Y (en) | 1998-04-15 |
Family
ID=33916477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96242336 Expired - Fee Related CN2278683Y (en) | 1996-10-18 | 1996-10-18 | Quick rise-and-fall jack and its cranking bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2278683Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537989B (en) * | 2008-09-19 | 2012-02-01 | 中建工业设备安装有限公司 | Jack of quick lift |
| CN102628737A (en) * | 2012-03-21 | 2012-08-08 | 厦门市工程检测中心有限公司 | Device and method for detecting safety performance of opening fan of glass curtain wall on site |
-
1996
- 1996-10-18 CN CN 96242336 patent/CN2278683Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537989B (en) * | 2008-09-19 | 2012-02-01 | 中建工业设备安装有限公司 | Jack of quick lift |
| CN102628737A (en) * | 2012-03-21 | 2012-08-08 | 厦门市工程检测中心有限公司 | Device and method for detecting safety performance of opening fan of glass curtain wall on site |
| CN102628737B (en) * | 2012-03-21 | 2014-08-27 | 厦门市工程检测中心有限公司 | Device and method for detecting safety performance of opening fan of glass curtain wall on site |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |