CN104860224A - Large-stroke lifting jack - Google Patents
Large-stroke lifting jack Download PDFInfo
- Publication number
- CN104860224A CN104860224A CN201510294340.4A CN201510294340A CN104860224A CN 104860224 A CN104860224 A CN 104860224A CN 201510294340 A CN201510294340 A CN 201510294340A CN 104860224 A CN104860224 A CN 104860224A
- Authority
- CN
- China
- Prior art keywords
- drive spindle
- lifting arm
- joint plate
- cover plate
- hole
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Provided is a large-stroke lifting jack. A cover plate and a jointing plate are connected with the upper end and the lower end of a supporting barrel respectively. An inner hole of the supporting barrel, a center hole of the cover plate and a forward rotating threaded hole of the jointing plate are located on the same axis. A driving rod is of a screw pipe structure. An inner hole of the driving rod is arranged to be of a backward rotating threaded hole structure. An upper end head of the driving rod is connected with the forward rotating threaded hole of the jointing plate in a threaded mode. A lower end head of the driving rod is connected with an operating crank. A lifting rod is of a backward rotating stud structure. The stud wall of the lifting rod is provided with a longitudinal limiting groove. The lifting rod is arranged inside the supporting barrel. An upper end head of the lifting rod extends out of the center hole of the cover plate. The limiting groove on the lifting rod is matched with a guiding key on the center hole of the cover plate. The lower end of the lifting rod is connected with a backward rotating threaded hole inside the driving rod. The jointing plate is fixed to a building, the operating crank is rotated, and when the driving rod is raised or descended along with the forward rotating threaded hole of the jointing plate in a threaded mode, the backward rotating threaded hole inside the driving rod can drive the lifting rod to raise or descend along with the direction limited by the guiding key and the limiting groove.
Description
Technical field
The present invention relates to a kind of lifting mechanism, especially can strengthen the Long Distances lift jack of lifting stroke.
Background technology
At present, known lifting mechanism due to lifting stroke less, therefore its Applicable scope is less.
Summary of the invention
In order to overcome the less deficiency of its lifting stroke of existing lifting mechanism, the invention provides a kind of Long Distances lift jack, this Long Distances lift jack by strengthening lifting stroke, thus expands the Applicable scope of lifting mechanism.
The technical solution adopted for the present invention to solve the technical problems is: the present invention includes cover plate, top, carrying cylinder, joint plate, drive spindle, rocking handle, bolt hole, lifting arm, position-limited trough and lead key.Cover plate is the slab construction of annular arrangement, and the hole wall of cover central hole is provided with lead key.Joint plate is the slab construction of annular arrangement, and the centre hole of joint plate is set to dextrorotation thread pore structure, and the annular plate surface of joint plate evenly offers several bolts hole.Carrying cylinder is columnar structured, and cover plate is connected to the upper end of carrying cylinder, and joint plate is connected to the lower end of carrying cylinder, and the dextrorotation tapped bore of the endoporus of carrying cylinder and the centre hole of cover plate and joint plate is in same axis.Drive spindle is columnar structured, the outer tube wall of drive spindle is set to the helicitic texture closed with the dextrorotation corresponding threaded holes on joint plate, the endoporus of drive spindle is set to derotation thread pore structure, the upper end of drive spindle is threaded with the dextrorotation tapped bore of joint plate, and the lower end of drive spindle is connected with rocking handle.Top is for disc-shaped structure, and lifting arm is derotation bolt structure, and the derotation corresponding threaded holes in lifting arm and drive spindle closes, and the stud wall of lifting arm offers longitudinal position-limited trough.Lifting arm is arranged in carrying cylinder, and the centre hole that the upper end of lifting arm stretches out cover plate is connected with top, and the position-limited trough on lifting arm coordinates with the lead key on cover plate, and the lower end of lifting arm is connected in the derotation tapped bore in drive spindle.
In using, joint plate is connected on building by bolt hole, the top of lifting arm is corresponding with by lifting object, by rocking handle rotation of drive rod, when drive spindle is along dextrorotation tapped bore spiral on joint plate, derotation tapped bore in drive spindle can drive lifting arm to rise along on the direction that lead key and position-limited trough limit, and therefore promotes by lifting object.Rotate backward rocking handle, when drive spindle declines along the dextrorotation tapped bore spiral on joint plate, the derotation tapped bore in drive spindle can drive lifting arm to decline along the direction that lead key and position-limited trough limit, and therefore puts down by lifting object.
The invention has the beneficial effects as follows, by strengthening lifting stroke, thus expanding the Applicable scope of lifting mechanism.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is front view of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the upward view of Fig. 1.
Fig. 4 is the enforcement illustration of Fig. 1.
Fig. 5 is the A-A profile of Fig. 1.
Fig. 6 is the B-B section-drawing of Fig. 1.
Fig. 7 is the enforcement illustration of Fig. 6.
In figure: 1. cover plate.2. come directly towards.3. carrying cylinder.4. joint plate.5. drive spindle.6. rocking handle.7. bolt hole.8. lifting arm.9. position-limited trough.10. lead key.
Detailed description of the invention
In Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 6, cover plate 1 is the slab construction of annular arrangement, and the hole wall of cover plate 1 centre hole is provided with lead key 10.Joint plate 4 is the slab construction of annular arrangement, and the centre hole of joint plate 4 is set to dextrorotation thread pore structure, and the annular plate surface of joint plate 4 evenly offers several bolts hole 7.Carrying cylinder 3 is columnar structured, and cover plate 1 is connected to the upper end of carrying cylinder 3, and joint plate 4 is connected to the lower end of carrying cylinder 3, and the dextrorotation tapped bore of the endoporus of carrying cylinder 3 and the centre hole of cover plate 1 and joint plate 4 is in same axis.Drive spindle 5 is columnar structured, the outer tube wall of drive spindle 5 is set to the helicitic texture closed with the dextrorotation corresponding threaded holes on joint plate 4, the endoporus of drive spindle 5 is set to derotation thread pore structure, the upper end of drive spindle 5 is threaded with the dextrorotation tapped bore of joint plate 4, and the lower end of drive spindle 5 is connected with rocking handle 6.Top 2 is disc-shaped structure, and lifting arm 8 is derotation bolt structure, and lifting arm 8 closes with the derotation corresponding threaded holes in drive spindle 5, and the stud wall of lifting arm 8 offers longitudinal position-limited trough 9.Lifting arm 8 is arranged in carrying cylinder 3, and the centre hole that the upper end of lifting arm 8 stretches out cover plate 1 is connected with top 2, and the position-limited trough 9 on lifting arm 8 coordinates with the lead key 10 on cover plate 1, and the lower end of lifting arm 8 is connected in the derotation tapped bore in drive spindle 5.
In Fig. 1, Fig. 4, Fig. 6, Fig. 7, in using, joint plate 4 is connected on building by bolt hole 7, the top 2 of lifting arm 8 is corresponding with by lifting object, by rocking handle 6 rotation of drive rod 5, when drive spindle 5 is along dextrorotation tapped bore spiral on joint plate 4, the derotation tapped bore in drive spindle 5 can drive lifting arm 8 to rise along on the direction that lead key 10 and position-limited trough 9 limit, and therefore promotes by lifting object.Rotate backward rocking handle 6, when drive spindle 5 declines along the dextrorotation tapped bore spiral on joint plate 4, the derotation tapped bore in drive spindle 5 can drive lifting arm 8 to decline along the direction that lead key 10 and position-limited trough 9 limit, and therefore puts down by lifting object.
Claims (5)
1. a Long Distances lift jack, it comprises cover plate, top, carrying cylinder, joint plate, drive spindle, rocking handle, bolt hole, lifting arm, position-limited trough and lead key, it is characterized in that: on the hole wall of cover central hole, be provided with lead key, the centre hole of joint plate is set to dextrorotation thread pore structure, the annular plate surface of joint plate evenly offers several bolts hole, cover plate is connected to the upper end of carrying cylinder, joint plate is connected to the lower end of carrying cylinder, the dextrorotation tapped bore of the endoporus of carrying cylinder and the centre hole of cover plate and joint plate is in same axis, drive spindle is columnar structured, the outer tube wall of drive spindle is set to the helicitic texture closed with the dextrorotation corresponding threaded holes on joint plate, the endoporus of drive spindle is set to derotation thread pore structure, the upper end of drive spindle is threaded with the dextrorotation tapped bore of joint plate, the lower end of drive spindle is connected with rocking handle, top is disc-shaped structure, lifting arm is derotation bolt structure, derotation corresponding threaded holes in lifting arm and drive spindle closes, the stud wall of lifting arm offers longitudinal position-limited trough, lifting arm is arranged in carrying cylinder, the centre hole that the upper end of lifting arm stretches out cover plate is connected with top, position-limited trough on lifting arm coordinates with the lead key on cover plate, the lower end of lifting arm is connected in the derotation tapped bore in drive spindle.
2. Long Distances lift jack according to claim 1, is characterized in that: described cover plate is the slab construction of annular arrangement.
3. Long Distances lift jack according to claim 1, is characterized in that: described joint plate is the slab construction of annular arrangement.
4. Long Distances lift jack according to claim 1, is characterized in that: described carrying cylinder is columnar structured.
5. Long Distances lift jack according to claim 1, is characterized in that: described joint plate is connected on building by bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294340.4A CN104860224A (en) | 2015-06-02 | 2015-06-02 | Large-stroke lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294340.4A CN104860224A (en) | 2015-06-02 | 2015-06-02 | Large-stroke lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104860224A true CN104860224A (en) | 2015-08-26 |
Family
ID=53906474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510294340.4A Pending CN104860224A (en) | 2015-06-02 | 2015-06-02 | Large-stroke lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104860224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502465A (en) * | 2020-04-22 | 2020-08-07 | 北京航天发射技术研究所 | Parallel lifting device based on mechanical synchronization |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2625488A1 (en) * | 1987-12-30 | 1989-07-07 | Zw Hydraulik Ag | Telescopic mechanical raising device |
| CN2268019Y (en) * | 1995-07-22 | 1997-11-19 | 易荣任 | Lifting device for telescopic screw rod |
| CN2286476Y (en) * | 1997-03-13 | 1998-07-22 | 易荣任 | High lifting height type screw jack |
| CN1393390A (en) * | 2001-07-02 | 2003-01-29 | 理研精工株式会社 | Jack on vehicle |
| CN201201883Y (en) * | 2008-04-29 | 2009-03-04 | 王树声 | Portable split jack |
| CN201458645U (en) * | 2009-04-30 | 2010-05-12 | 谢迎开 | Automobile-used double-screw lifting mechanism |
| CN102009922A (en) * | 2010-06-04 | 2011-04-13 | 哈尔滨工程大学 | Multi-section spiral lifting mechanism |
| CN204057843U (en) * | 2014-08-22 | 2014-12-31 | 中联重科股份有限公司 | Screw lifting device and jack |
| CN204661222U (en) * | 2015-06-02 | 2015-09-23 | 张卫 | Long Distances lift jack |
-
2015
- 2015-06-02 CN CN201510294340.4A patent/CN104860224A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2625488A1 (en) * | 1987-12-30 | 1989-07-07 | Zw Hydraulik Ag | Telescopic mechanical raising device |
| CN2268019Y (en) * | 1995-07-22 | 1997-11-19 | 易荣任 | Lifting device for telescopic screw rod |
| CN2286476Y (en) * | 1997-03-13 | 1998-07-22 | 易荣任 | High lifting height type screw jack |
| CN1393390A (en) * | 2001-07-02 | 2003-01-29 | 理研精工株式会社 | Jack on vehicle |
| CN201201883Y (en) * | 2008-04-29 | 2009-03-04 | 王树声 | Portable split jack |
| CN201458645U (en) * | 2009-04-30 | 2010-05-12 | 谢迎开 | Automobile-used double-screw lifting mechanism |
| CN102009922A (en) * | 2010-06-04 | 2011-04-13 | 哈尔滨工程大学 | Multi-section spiral lifting mechanism |
| CN204057843U (en) * | 2014-08-22 | 2014-12-31 | 中联重科股份有限公司 | Screw lifting device and jack |
| CN204661222U (en) * | 2015-06-02 | 2015-09-23 | 张卫 | Long Distances lift jack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502465A (en) * | 2020-04-22 | 2020-08-07 | 北京航天发射技术研究所 | Parallel lifting device based on mechanical synchronization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |