CN104495688B - Caravan automatic rising-sinking platform - Google Patents
Caravan automatic rising-sinking platform Download PDFInfo
- Publication number
- CN104495688B CN104495688B CN201410829787.2A CN201410829787A CN104495688B CN 104495688 B CN104495688 B CN 104495688B CN 201410829787 A CN201410829787 A CN 201410829787A CN 104495688 B CN104495688 B CN 104495688B
- Authority
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- China
- Prior art keywords
- inner sleeve
- block
- leading screw
- outer tube
- cover plate
- 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
- 230000000694 effects Effects 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000007373 indentation Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 2
- 206010040007 Sense of oppression Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a kind of caravan automatic rising-sinking platform, including：The leading screw fixed with lifting platform supporting part, the inner sleeve and outer tube of leading screw are wrapped up successively；Outer tube is only rotated under the drive of external power supply, and leading screw is fixed with supporting part, and itself does not rotate, and the motion in short transverse only occurs, and inner sleeve not only rotates but also the motion of short transverse occurs.Described leading screw, inner sleeve and outer tube is driven by respective screw thread respectively, and the top of the outer tube has a cover plate I, and cover plate I center has one with female through hole I, described inner sleeve and through hole I thread connections.The bottom of the inner sleeve is provided with a block plate, and the external diameter of the block plate is more than the external diameter of inner sleeve, block plate and outer tube thread connection；The top of the inner sleeve is provided with a cover plate II coupled with the threads of lead screw, and the center of the cover plate has one with female through hole II, described leading screw and through hole II thread connections；The bottom of outer tube is provided with cover plate III, and the cover plate is provided with diameter and is slightly less than overcoat bore and slightly larger than the groove of block plate diameter.
Description
Technical field
The present invention relates to a kind of caravan with from lifting platform.It is related to Patent classificating number B66 elevators；Lifting；Traction B66F is not wrapped
Elevator, lifting, traction or the promotion being contained in other classifications, such as lifting force or motive force are directly acted on the dress on load surface
The device that B66F3/00 is used to continuously lift load is put, as jack B66F3/08 spirals manipulate.
Background technology
With the continuous development of caravan industry, quality and multifunction requirement to caravan also improve constantly, in caravan
The requirement of portion's facility also accordingly improves, and the proposition of self-raising platform is favorably improved the automatization level of whole caravan, improves
The quality of caravan.
At present, common lowering or hoisting gear has pneumatic type, fluid pressure type, steel wire rope type etc., and air lifter bearing capacity is low,
It is poor to stablize, and to have air power source；Hydraulicefficiency elevation structure requirement on machining accuracy is high, low operating temperatures poor performance；Steel wire rope liter
Descending mechanism is complicated, and it is excessive to be not easy joint number, therefore shrinks height and be restricted；Although truss-like, subrack and collapsible hold
It is also very big to carry big but its deadweight and volume.
The content of the invention
The present invention is directed to the proposition of problem above, and the present invention proposes a kind of caravan self-raising platform, including：With lifting
The leading screw that platform supporting part is fixed, the inner sleeve and outer tube of leading screw are wrapped up successively；Outer tube is only under the drive of external power supply
Rotated, leading screw is fixed with supporting part, and itself does not rotate, and the motion in short transverse only occurs, and inner sleeve not only rotated but also sent out
The motion of raw short transverse.
Described leading screw, inner sleeve and outer tube is driven by respective screw thread respectively, in order to meet screw-driven
Relation, each part concrete form are as follows：
The top of the outer tube has a cover plate I, and cover plate I center has one with female through hole I, described
Inner sleeve and through hole I thread connections；The bottom of the outer tube has a cover plate III, and the cover plate III is provided with groove, its
Diameter is slightly less than overcoat bore and is slightly larger than block plate diameter.
The bottom of the inner sleeve is provided with a block plate, and the external diameter of the block plate is more than the external diameter of inner sleeve；The inner sleeve
Top is provided with a cover plate II coupled with the threads of lead screw, and the center of the cover plate has one with female through hole II, institute
The leading screw stated and through hole II thread connections.
Described block plate is provided with a unidirectional stopping means I, and the device includes the briquetting I and position positioned at inner sleeve side-wall outer side
In the unidirectional limited block I of inner sleeve inside sidewalls, described briquetting and unidirectional limited block I linkages.
The cover plate II of described inner sleeve is provided with unidirectional stopping means II, and the device is included on overcoat tube cover plate II
The briquetting II and the unidirectional limited block II below the cover plate II, the unidirectional limited block II and leading screw lower end block of side are in
On same rotation round.
Described leading screw bottom has a block for stopping inner sleeve rotation during raising and lowering.
When lifting platform rises by fully collapsed condition：Outer tube starts rotation in the presence of external power supply, and
Start to influence inner sleeve by the screw thread of its inwall, now, inner sleeve begins with the trend of rotation, still, below the leading screw
Block and the support plate on unidirectional position limiting slide block I act on, limit the inner sleeve and rotate, inner sleeve spiral shell in outer tube
Motion is begun to ramp up under line effect.
When the block plate of the inner sleeve is close to overcoat tube cover plate I, cover plate I compressings (are produced) branch by the upward motion of support plate
Briquetting I on support plate, the headspace I entered with the unidirectional limited block I and briquetting I of briquetting I linkages in block plate, i.e. leading screw bottom
Block it is no longer restricted.Now, leading screw no longer limits inner sleeve rotation, and inner sleeve rotates under the threaded function of outer tube,
Leading screw is begun to ramp up in the presence of interior casing threads.
When the block of leading screw is reached at the top of inner sleeve, uphill process terminates, and unidirectional limited block II is to the gear during this
Block does not act that (unidirectional limited block II does not act to the block of leading screw in uphill process, to institute during decline
Block is stated to act), cut off external power supply.
When being declined by complete elongation state, outer tube is in the presence of external power supply round about (with ascent direction
Conversely) rotating, leading screw prevents inner sleeve from being rotated under the turning effort of outer tube by the effect of block and unidirectional limited block II,
Inner sleeve is begun to decline together with leading screw, and during this, the relative altitude of inner sleeve and leading screw is fixed, and is not changed.Work as block plate
During close to outer tube bottom surface, the briquetting II (outer ledges of briquetting in unidirectional stopping means II described in the cover plate I liftings of outer tube
Positioned at the outside of inner sleeve side wall), the unidirectional upward liftings of limited block II to be linked with it, into the headspace II in cover plate II
In, inner sleeve loses the limitation that leading screw rotates to it, starts and outer tube rotates together with, and now leading screw is made in the screw thread of inner sleeve
Begun to decline under, until income inner sleeve completely, completes contraction process.
Further, it is contemplated that, screw thread is transmitted when being worked due to lifting platform and is easy to wear, if inner outer tube bottom
Portion's friction comes locked, uses for a long time to thread abrasion degree than more serious, pretends as preferred embodiment, under outer tube
End is provided with the groove that an external diameter is less than overcoat bore；Described block plate has unidirectional locking mechanism, and block plate lowers into the groove
When middle, the relative rotation of unidirectional locking mechanism limitation inner sleeve and outer tube, after locked, inner sleeve is in the presence of screw thread with outside
Sleeve pipe rotating Vortex.
As preferred embodiment, described unidirectional locking mechanism includes：It is multiple outer peripheral positioned at the support plate
Wedge-shaped indentation, the interior deep-slotted chip breaker provided with a ball and support ball of wedge-shaped indentation, the deep-slotted chip breaker can ensure inner sleeve in decline process
In, ball can be rolled in deep-slotted chip breaker all the time, and the inwall with outer tube is not in contact (because the external diameter of block plate is more than inner sleeve
External diameter, i.e., have space between inner sleeve pipe outer wall and outer sleeve inner wall), generation friction that will not be too early causes block plate into groove
It is before just too early locked.
When block plate drops to the trench bottom, groove rubs relative to the less inwall of outer sleeve inner wall diameter with ball
Wipe, and with groove bottom wall collective effect, drive the ball move to the narrow end of wedge-shaped indentation, up to locked block plate.
As preferred embodiment, described unidirectional limited block I includes inclined-plane and the facade vertical with support plate；It is described
Leading screw uphill process in, the block of leading screw lower end and unidirectional limited block I contact of incline plane, the inclined-plane in the presence of block,
It is retracted in headspace I, the rotation to inner sleeve does not have an impact.
As preferred embodiment, described unidirectional limited block II includes inclined-plane and the facade vertical with cover plate；It is described
Leading screw decline during, the block of leading screw lower end and unidirectional limited block II contact of incline plane, the inclined-plane in the presence of block,
It is retracted in headspace I, the rotation to inner sleeve does not have an impact.
Brief description of the drawings
, below will be to embodiment or existing for clearer explanation embodiments of the invention or the technical scheme of prior art
There is the required accompanying drawing used in technology description to do one and simply introduce, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
The present invention shares 4 width accompanying drawings, wherein：
The self-raising platform general arrangement of accompanying drawing 1
The inner sleeve of accompanying drawing 2 and the structural representation of unidirectional stopping means II
The block plate of accompanying drawing 3 and unidirectional stopping means I structural representations
The screw structure schematic diagram of accompanying drawing 4
Embodiment
To make the purpose, technical scheme and advantage of embodiments of the invention clearer, with reference to the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly completely described：
Embodiment 1, as Figure 1-4：
A kind of caravan is mainly included with from lifting platform：Leading screw 1, wrap up the inner sleeve 2 of leading screw 1 and wrap up the outer of inner sleeve 1
Sleeve pipe 3, leading screw I top are provided with lifting platform supporting surface 6, the base frame 8 of lifting platform bottom, and the side of lifting platform is provided with sleeve 7.
The push pipe of the outer tube 3 (can also be arranged to removable company to be integrally formed with the side wall of outer tube 3 according to actual conditions
Connect) cover plate I, cover plate I center has one to join with female through hole I, described inner sleeve 2 with through hole I screw threads
Connect.
The bottom of the inner sleeve 2 is provided with a block plate 21, and the external diameter of the block plate 21 is more than the external diameter of inner sleeve 2, in guarantee
Certain space between sleeve pipe 2 and outer tube 3 be present.The top of the inner sleeve 2 is provided with cover plate II32, the lid with outer tube 3
Plate I is provided with one with female through hole II33, described leading screw 1 and through hole II33 screw threads similar to cover plate II32 center
Connection and transmission.
Block plate 21 is provided with a unidirectional stopping means I22, is included under unforced state, respectively outside the side wall of inner sleeve 2
The briquetting I23 of the side and unidirectional limited block I24 positioned at inner sleeve inside sidewalls, described briquetting I23 and unidirectional limited block I pass through
One connecting rod I connections, as shown in figure 3, unidirectional limited block I 24 includes an inclined-plane and facade, briquetting I23 is cylinder, in support plate 21
Corresponding position be provided with orthographic projection shape with unidirectional limited block I24, connecting rod I and briquetting I23 in support plate 21 and be engaged
Headspace I26, meanwhile, connecting rod I, be connected by a spring I27 with headspace I26 bottom surface, to be whole unidirectional spacing
Device I22 provides the screen resilience after suffering oppression, and compressing includes the pressure that briquetting I23 is received, and unidirectional limited block I inclined-planes receive
The block 11 of leading screw 1 acts on caused pressing force.Stator 28 is additionally provided with above headspace I26, limiting rod I is moved
Make scope.
When the block 11 of the bottom of leading screw 1 is rotated forward by Fig. 3, the ramp effect with unidirectional limited block I24, i.e., do not produce
The obstruction rotated against to leading screw 1 and inner sleeve 2, when leading screw 1 carries out the reversion of position as shown in Figure 3, unidirectional limited block I24
Acted on the block 11 of the bottom of leading screw 1, hinder rotating against for leading screw 1 and inner sleeve 2.
Described block plate 21 is additionally provided with centrosymmetric 4 wedge-shaped indentations 41, and the bottom surface of wedge-shaped indentation 41 is (with the bottom of block plate 21
Face is a plane) deep-slotted chip breaker 42 is provided with, ball 43 rolls on deep-slotted chip breaker 42.
As shown in Figure 2：Cover plate II32 is provided with described unidirectional stopping means II34, the structure class with unidirectional limited block I
Seemingly, the unidirectional limited block II36 of briquetting II35 and inner side including on the outside of cover plate II32, unidirectional limited block II36 it is non-by
Compel under state, cover plate II is stretched out, positioned at cover plate II32 lower section；Briquetting II35 is higher by cover plate II32's under unforced state
Upper surface, while briquetting II35 edge exceeds the outer wall of inner sleeve 2, unidirectional limited block II36 and briquetting II35 pass through connecting rod II37
Connection, connecting rod II37 are connected by spring with pressure plates II 38.
The bottom of outer tube 3 is provided with groove 5, is provided with bevel gear I51 in the lower section of groove 5, the bevel gear I51 is horizontal by one
Bevel gear II52 drives.
Set under contraction state, leading screw 1 is taken in inner sleeve 2 completely, and inner sleeve 2 is taken in outer tube 3 completely.Rose
When journey starts, bevel gear II52 rotates forward outer tube 3 by bevel gear I51 first, now, the unidirectional limited block on block plate 21
I24 by the bottom block 11 of leading screw 1 effect, it is locked between inner sleeve 2 and leading screw 1, relative motion does not occur.Inner sleeve 2 exists
Rise under rotation threaded function.When inner sleeve 2 is risen to close to the cover plate I of outer tube 3, briquetting I23 suffers oppression to be retracted and reserved
In space, the unidirectional limited block I24 to be linked with it is also retracted in headspace, now, the limitation between leading screw 1 and inner sleeve 2
Disappear, leading screw 1 starts following outer tube 3 to rotate.Leading screw 1 is begun to ramp up to extreme position in the presence of screw thread is rotated, this
Rotation of the Shi Danxiang limited blocks II36 inclined-plane in face of the block 11, not limit stop 11 and leading screw 1 of leading screw 1.
When starting to shrink at, bevel gear II52 drives outer tube 3 to invert by bevel gear I51, the cover plate II32 of inner sleeve 2 list
Block 11 is faced to limited block II36 facade, the relative rotation of leading screw 1 and inner sleeve 2 is hindered, that is, hinders inner sleeve 2 itself
Rotating, inner sleeve 2 is begun to decline in the presence of screw thread rotation, when inner sleeve 2 drops to described 5 bottom of groove, block plate 21
It is locked.It is meanwhile briquetting II35 is caused the unidirectional limited block II36 income headspaces of linkage by cover plate I31 lifting, i.e., interior
The limitation of the rotation of sleeve pipe 2 disappears, and inner sleeve 2 starts the rotation for following outer tube 3 to synchronize in the presence of screw thread is rotated, silk
Thick stick 1 declines (leading screw 1 is fixed, and rotation does not occur all the time) in the presence of screw thread is rotated.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
- A kind of 1. caravan self-raising platform, it is characterised in that including：The leading screw fixed with lifting platform supporting part, wraps up silk successively The inner sleeve and outer tube of thick stick；The top of the outer tube has a cover plate I, and cover plate I center has one with female through hole I, and described is interior Sleeve pipe and through hole I thread connections；The bottom of the inner sleeve is provided with a block plate, and the external diameter of the block plate is more than the external diameter of inner sleeve, block plate and outer sleeve inner wall Leave certain interval；The top of the inner sleeve is provided with a cover plate II coupled with the threads of lead screw, the center tool of the cover plate Have one with female through hole II, described leading screw and through hole II thread connections；Described block plate is provided with a unidirectional stopping means I, and the device is included positioned at the briquetting I of inner sleeve side-wall outer side and positioned at interior Unidirectional limited block I on the inside of sleeve side walls, described briquetting I and unidirectional limited block I linkages；The cover plate II of described inner sleeve is provided with unidirectional stopping means II, and the device is included on inner sleeve tube cover plate II outer walls Briquetting II and the unidirectional limited block II below the cover plate II, described briquetting II and unidirectional limited block II linkage；Described leading screw bottom has a block, and the block and unidirectional limited block II are located on same rotation round；When lifting platform is risen by fully collapsed condition：Block below the leading screw and the unidirectional position limiting slide block I on the block plate Effect, limit the inner sleeve and rotate, inner sleeve together rises under the effect of outer tube internal thread with leading screw；When the block plate of the inner sleeve is close to overcoat tube cover plate I, the briquetting I on cover plate I compressing block plates, the list with briquetting I linkages The headspace I entered to limited block I and briquetting I in block plate；Now, leading screw no longer limits inner sleeve rotation, and inner sleeve is outside Rotated under the threaded function of sleeve pipe, leading screw starts to depart from inner sleeve and rise under the effect of interior casing threads；When the block of leading screw is reached at the top of inner sleeve, uphill process terminates, during this unidirectional limited block II to the block not Produce barrier effect；When decline process starts, outer tube rotates round about, barrier effect of the leading screw by block by unidirectional limited block II Inner sleeve is prevented to be rotated under the turning effort of outer tube, inner sleeve is begun to decline together with leading screw；When block plate is close to outer tube bottom During face, the briquetting II described in the cover plate I liftings of outer tube, the unidirectional upward liftings of limited block II to be linked with it, into cover plate II In headspace II in, when block plate is locked by the lid panel notches of outer sleeve bottom, at the same time, inner sleeve loses leading screw to it The limitation of rotation, and in the presence of outer tube and outer tube starts to rotate together, now threaded function of the leading screw in inner sleeve Under begin to decline, until completely income inner sleeve.
- 2. caravan self-raising platform according to claim 1, it is further characterized in that the cover plate of described outer tube lower end III, which is provided with a diameter, is less than overcoat bore and slightly larger than the groove of block plate；Described block plate has unidirectional locking mechanism, block plate When lowering into the groove, the relative rotation of unidirectional locking mechanism limitation inner sleeve and outer tube, after locked, inner sleeve is in spiral shell In the presence of line with outer tube rotating Vortex.
- 3. automobile-used self-raising platform according to claim 2, it is further characterized in that described unidirectional locking mechanism includes：It is more It is individual to be located at the outer peripheral wedge-shaped indentation of the block plate, the deep-slotted chip breaker of a ball and support ball is provided with wedge-shaped indentation；When block plate is dropped in the groove, the narrow end of the wedge-shaped indentation is driven to transport under the inwall of groove and the collective effect of bottom wall It is dynamic, locked block plate.
- 4. caravan self-raising platform according to claim 1, is further characterized in that：Described unidirectional limited block I includes Inclined-plane and the facade vertical with support plate；In described leading screw uphill process, the block of leading screw lower end is oblique with unidirectional limited block I's Face is contacted, and the inclined-plane is retracted in headspace I, the rotation to inner sleeve does not have an impact in the presence of block.
- 5. automobile-used self-raising platform according to claim 1, is further characterized in that：Described unidirectional limited block II includes oblique Face and the facade vertical with cover plate；During described leading screw declines, the inclined-plane of the block of leading screw lower end and unidirectional limited block II Contact, the inclined-plane are retracted in headspace I, the rotation to inner sleeve does not have an impact in the presence of block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829787.2A CN104495688B (en) | 2014-12-26 | 2014-12-26 | Caravan automatic rising-sinking platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829787.2A CN104495688B (en) | 2014-12-26 | 2014-12-26 | Caravan automatic rising-sinking platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104495688A CN104495688A (en) | 2015-04-08 |
| CN104495688B true CN104495688B (en) | 2018-01-09 |
Family
ID=52937170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410829787.2A Expired - Fee Related CN104495688B (en) | 2014-12-26 | 2014-12-26 | Caravan automatic rising-sinking platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495688B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105152049A (en) * | 2015-09-11 | 2015-12-16 | 夏雨 | Construction engineering lifting device powered by solar energy and provided with LED lamp |
| CN105152050A (en) * | 2015-09-11 | 2015-12-16 | 方新刚 | Shock-absorbing large construction stone lifting device |
| CN107522136A (en) * | 2017-09-03 | 2017-12-29 | 李保龙 | A kind of railroad bridge construction lowering or hoisting gear |
| CN111532656B (en) * | 2020-04-30 | 2020-12-29 | 广东工业大学 | Single-power-source lifting and rotating device for production line and production line conveyor belt |
| CN113023617B (en) * | 2021-03-04 | 2022-09-20 | 安徽同方工程咨询有限公司 | Water conservancy environmental protection decontamination system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1927598A (en) * | 1931-04-02 | 1933-09-19 | Schlichter Oscar | Portable elevating table |
| US5709286A (en) * | 1996-05-13 | 1998-01-20 | Joyce/Dayton Corp. | Mechanical replacement for hydraulic in-ground vehicle lift |
| JP2003285994A (en) * | 2002-03-28 | 2003-10-07 | Hirata Corp | Elevating apparatus |
| CN101734575A (en) * | 2009-12-17 | 2010-06-16 | 中国航天科技集团公司第五研究院第五一○研究所 | Design method of three-level lead screw linkage mechanical platform lifting |
| CN202099010U (en) * | 2011-06-13 | 2012-01-04 | 无锡帝凡精工机械有限公司 | Screw lifting mechanism and automatic lifting platform |
| CN102745620A (en) * | 2012-07-03 | 2012-10-24 | 江苏永钢集团有限公司 | Manual liftable saddle |
| CN204549949U (en) * | 2014-12-26 | 2015-08-12 | 大连理工大学 | Caravan self-raising platform |
-
2014
- 2014-12-26 CN CN201410829787.2A patent/CN104495688B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1927598A (en) * | 1931-04-02 | 1933-09-19 | Schlichter Oscar | Portable elevating table |
| US5709286A (en) * | 1996-05-13 | 1998-01-20 | Joyce/Dayton Corp. | Mechanical replacement for hydraulic in-ground vehicle lift |
| JP2003285994A (en) * | 2002-03-28 | 2003-10-07 | Hirata Corp | Elevating apparatus |
| CN101734575A (en) * | 2009-12-17 | 2010-06-16 | 中国航天科技集团公司第五研究院第五一○研究所 | Design method of three-level lead screw linkage mechanical platform lifting |
| CN202099010U (en) * | 2011-06-13 | 2012-01-04 | 无锡帝凡精工机械有限公司 | Screw lifting mechanism and automatic lifting platform |
| CN102745620A (en) * | 2012-07-03 | 2012-10-24 | 江苏永钢集团有限公司 | Manual liftable saddle |
| CN204549949U (en) * | 2014-12-26 | 2015-08-12 | 大连理工大学 | Caravan self-raising platform |
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| Publication number | Publication date |
|---|---|
| CN104495688A (en) | 2015-04-08 |
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