CN108678396A - The base construction of lift-on/lift-off type building-supporting device - Google Patents
The base construction of lift-on/lift-off type building-supporting device Download PDFInfo
- Publication number
- CN108678396A CN108678396A CN201810547620.5A CN201810547620A CN108678396A CN 108678396 A CN108678396 A CN 108678396A CN 201810547620 A CN201810547620 A CN 201810547620A CN 108678396 A CN108678396 A CN 108678396A
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- Prior art keywords
- lift
- base
- post
- column
- supporting device
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention provides a kind of base construction of lift-on/lift-off type building-supporting device, including lifting column, and the bottom of lifting column is equipped with base for post, and lifting column is equipped with the support arm opened close to the position of bottom, and the free end of support arm is equipped with lifting jack.It is equipped with pedestal in the lower section of base for post, the bottom of base for post is arc, and pedestal is corresponding arc, and base for post is located at pedestal, and arcwall face contacts with each other., can be quickly by entire support device leveling by using above-mentioned structure, the arc positioning device of setting can realize automatic centering, and the axial location of entire support device is made not change, and improve Adjustment precision.It in the preferred scheme, can easily vertically support post improves the utilization ratio of loop wheel machine to free loop wheel machine using the structure of " V " type groove.The advantage of the present invention is that above-mentioned technique effect is realized with relatively simple structure, can largely reduce construction cost, be easy to implement multiple columns while lifting.
Description
Technical field
The present invention relates to the auxiliary hoisting device of assembled construction, especially a kind of base of lift-on/lift-off type building-supporting device
Holder structure.
Background technology
Assembled architecture in the prior art mostly uses assembled column, beam and panel structure, is lifted by loop wheel machine, in column
Hoisting process in, have the following problems：
1, it needs to connect the steel pipe and longitudinal reinforcement in column in hoisting process, in the process, needs loop wheel machine to suspend in midair always vertical
Column occupies the construction period of loop wheel machine.
2, also there is the scheme using temporary support, but temporary support needs that at least two groups buttress is arranged, and also needs to be equipped with phase
The safety measures answered, therefore larger interference is caused to construction site, and also it is very troublesome using buttress leveling and positioning.
3, the steel pipe and longitudinal reinforcement that column is needed in assembled architecture are accurately positioned, the column of part also need to by
Steel pipe mutually socket-connects, and ensures to precisely align flange hole, and the heavier-weight of column, the position of column and posture are adjusted
Whole, labor intensity is larger, and construction efficiency is relatively low.
4, in the prior art column is kept needing to use fork-shaped gripper vertically, but the structure of the gripper is more
Complexity will realize heavy weight crawl, and the requirement to structure is very high, and realize expensive.
In the prior art, there is not yet comparatively ideal solution.
Invention content
Technical problem to be solved by the invention is to provide a kind of base construction of lift-on/lift-off type building-supporting device, Neng Goufang
Just leveling is carried out to support device, and the position of positioning datum axis will not change, in preferred scheme, convenient for pair
Column is fixed, and simple in structure, registration.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of lift-on/lift-off type building-supporting device
The bottom of base construction, including lifting column, lifting column is equipped with base for post, and lifting column is equipped with the support opened close to the position of bottom
The free end of arm, support arm is equipped with lifting jack.
In preferred scheme, it is equipped with pedestal in the lower section of base for post, the bottom of base for post is arc, and pedestal is corresponding arc,
Base for post is located at pedestal, and arcwall face contacts with each other.
In preferred scheme, the bottom of base for post is the arc of indent, and the top of pedestal is the arc of evagination.
In preferred scheme, the bottom of base for post is the arc of evagination, and the top of pedestal is the arc of indent.
In preferred scheme, polytetrafluoroethylene (PTFE) axle sleeve is equipped between base for post and the arcwall face of pedestal.
In preferred scheme, the lifting jack is hydraulic jack, hand power screw jack and electric screw thousand
Jin top.
In preferred scheme, the line between lifting jack, except being located at the column parallel with the line to section.
In preferred scheme, in the lifting column, fixed column is socketed with portable pillar, is equipped between fixed column and portable pillar
Screw jack.
In preferred scheme, one end of fixed column and suspension cable connects, and the other end of suspension cable is connect with ground.
In preferred scheme, in the lifting column, portable pillar is connect with " V " type groove, and the axis and ground of " V " type groove are hung down
Directly, it is equipped with the edge of a wing in the both sides of " V " type groove, the both ends of stretching wire rope are connect with the edge of a wing, in stretching wire rope and " V " type groove
The space of side is used for vertical columns.
A kind of base construction of lift-on/lift-off type building-supporting device provided by the invention can by using above-mentioned structure
Quickly by entire support device leveling, in preferred scheme, the arc positioning device of setting can realize automatic centering, make whole
The axial location of a support device will not change, and improve Adjustment precision.In the preferred scheme, using the knot of " V " type groove
Structure easily vertically support post can improve the utilization ratio of loop wheel machine to free loop wheel machine.The present invention
Another advantage be that above-mentioned technique effect is realized with relatively simple structure, can largely reduce construction cost, just
It is lifted simultaneously in the multiple columns of realization.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the B-B schematic cross-sectional views of Fig. 2.
Fig. 2 is the main structure diagram of the present invention..
Fig. 3 is the structural schematic diagram of lateral adjustments disk and lateral adjustments disk in the present invention.
Fig. 4 is another preferred structure schematic diagram of lateral adjustments disk and lateral adjustments disk in the present invention.
Fig. 5 is the A-A schematic cross-sectional views of Fig. 2.
Fig. 6 is the structural schematic diagram after central post of the present invention lifting.
In figure：Lifting column 1, portable pillar 101, fixed column 102, support arm 103, lifting jack 104, base for post 105, tensioning
Steel wire rope 2, lateral adjustments disk 3, longitudinally adjust disk 3', guide rail 31, longitudinally adjust disk 32, limited block 33, stop nut 34, handle
35, fixed seat 36, retarder 37, regulation motor 38, adjusting screw rod 39, fixed seat 4, locating rod 5, laser emitter 51, turntable
Device 6, first flange disk 61, position-arresting disk 62, shaft 63, second flange disk 64,65 fixing device 7 of fixing muscle, " V " type groove 71,
Reinforcing rib 72, the edge of a wing 73, column 8, corbels support 81, cushion block 9, protection board 10, suspension cable 11, pedestal 12, gyroscope 13, crossbeam
14。
Specific implementation mode
Embodiment 1：
Embodiment 1：
In Fig. 1 ~ 5, a kind of base construction of lift-on/lift-off type building-supporting device, including lifting column 1, the bottom of lifting column 1 are equipped with
Base for post 105, lifting column 1 are equipped with the support arm 103 opened close to the position of bottom, and the free end of support arm 103 is equipped with lifting thousand
Jin top 104, in lifting, column 8 is located between the support arm 103 opened.Thus structure is convenient for fast leveling lifting column 1,
Axis is avoided to be subjected to displacement.
In preferred scheme such as Fig. 1,2, it is equipped with pedestal 12 in the lower section of base for post 105, the bottom of base for post 105 is arc, base
Seat 12 is corresponding arc, and base for post 105 is located at pedestal 12, and arcwall face contacts with each other.Thus structure, so that in adjustment process,
Axial location generally remains constant.
In preferred scheme such as Fig. 2, the bottom of base for post 105 is the arc of indent, and the top of pedestal 12 is the arc of evagination.
In preferred scheme, the bottom of base for post 105 is the arc of evagination, and the top of pedestal 12 is the arc of indent.In figure
It is not shown.
In preferred scheme such as Fig. 1, polytetrafluoroethylene (PTFE) axle sleeve is equipped between base for post 105 and the arcwall face of pedestal 12.It is excellent
Choosing, axle sleeve is equipped with multiple vertical holes using the arcuate structure of bronze base on the arcuate structure, and poly- four are filled in hole
Vinyl fluoride column, the height of polytetrafluoroethylene (PTFE) column are higher than the edge in hole, and thus structure, improves lubricant effect.
In preferred scheme such as Fig. 1, the lifting jack 104 is hydraulic jack, hand power screw jack and electricity
Dynamic screw jack.Electric screw-jacks are preferably used in this example.Electric screw-jacks are sufficient for jacking and require, and
It being capable of self-locking and the fine tuning that is easy to implement under automatically controlling.Certain structure coordinated using hydraulic jack and locking device
It is feasible, but automatically adjusts precision and be not so good as electric screw-jacks.Electric screw-jacks and hydraulic jack are existing
There is the accessory in technology, details are not described herein again.
In preferred scheme such as Fig. 1, the line between lifting jack 104, longer dotted line in Fig. 5, to be located at and this
Except the parallel column 8 of line is to dotted line shorter in sectional view 5, so that the center of gravity of column 8 is fallen between support arm 103, keep away
Exempt to topple over.Of course, the scheme as the limit, due to the presence of support device dead weight, two dotted lines are concordant, or even slightly reversed
It is also feasible, but this can increase the risk toppled over.As shown in Figure 5, refer in Fig. 5 except described herein far from base for post
105 side.
In preferred scheme such as Fig. 2, in the lifting column 1, fixed column 102 is socketed with portable pillar 101, fixed column 102
Screw jack is equipped between portable pillar 101.
In preferred scheme such as Fig. 2, fixed column 102 is connect with one end of suspension cable 11, the other end of suspension cable 11 with bury
It is connected in the anchoring pile of ground or beam.Tensioning apparatus, such as double thread sleeve tensioning apparatus are equipped on suspension cable 11.
In preferred scheme, in the lifting column 1, portable pillar 101 is connect with " V " type groove 71, the axis of " V " type groove 71
It is perpendicular to the ground, it is equipped with the edge of a wing 73 in the both sides of " V " type groove 71, the both ends of stretching wire rope 2 are connect with the edge of a wing 73, in tensioning steel
Cord 2 and the space of 71 inside of " V " type groove are used for vertical columns 8.The rib of column 8 is resisted against in " V " type groove 71, and by tensioning steel
Cord 2 compresses column 8.Thus structure realizes accurate, the reliable location of column 8.
It has been installed near column 8 in use, pedestal 12 is accurately positioned, has lifted lifting column 1, lifting jack 104 is adjusted
It is flat, it is detected with reference to the level meter for being located at base for post 105 during leveling.Whether the position of detection " V " type groove 71 after leveling
Accurate positioning continues to adjust, and after detection is qualified, column 8 is connect by hoisting upright column 8 with " V " type groove 71, and detecting column 8 again is
No centering, after detection is qualified, the lifting of column 8 is realized in the lifting by controlling lifting column 1.
Embodiment 2：
For ease of further understanding the present invention, on the basis of embodiment 1, in preferred scheme such as Fig. 1, in stretching wire rope 2
Protection board 10 is equipped between column 8, protection board 10 is located at the position of rib on column 8.
In preferred scheme such as Fig. 5, the end of stretching wire rope 2 is equipped with screw rod, and the position on the edge of a wing 73 is equipped with fixed seat 4,
Screw rod is connect across fixed seat 4 with nut.It is tightened by punching hydraulic cylinder or torque wrench.Since stretching wire rope 2 is soft
Property, when column 8 is by Gravitational sliding, then stretching wire rope 2 the more draws the more tight, until reaching balance.
In preferred scheme such as Fig. 2, cushion block 9 is equipped between the top of " V " type groove 71 and the corbels support 81 of column 8.By
This structure, convenient for the reliably limit in an axial direction by column 8.
In preferred scheme such as Fig. 5,73 position of the edge of a wing is equipped with open slot, the fixed seat 4 be on one side oblique
The washer in face, the inclined-plane are contacted with open slot, and the another side of fixed seat 4 is the plane vertical with screw rod.Thus structure, convenient for fast
The installation of speed.
In preferred scheme such as Fig. 2, the stretching wire rope 2 is 2-3 roots from top to bottom.
In preferred scheme such as Fig. 2,5, it is equipped with the reference plane parallel with " V " 71 inner walls of type groove in the outer wall of " V " type groove 71,
Gyroscope 13 is installed in the reference plane.
In preferred scheme, it is equipped with the reference plane vertical with " V " 71 inner walls of type groove at the top of " V " type groove 71, in the base
Gyroscope 13 is installed on quasi- face.It is not shown in figure
In preferred scheme, the gyroscope 13 is connect with control device, and control device is electrically connected with display device.Thus it ties
Structure is convenient for the spatial attitude of real-time display column 8, to improve regulated efficiency.
In preferred scheme such as Fig. 2,5, it is additionally provided in the outer wall of " V " type groove 71 and is installed with locating rod 5, the end of locating rod 5
Head is equipped with laser emitter 51, and laser emitter 51 is perpendicularly oriented to ground, is positioned with auxiliary plane.
In preferred scheme such as Fig. 5, " V " type groove 71 is connect with one in two ring flanges, such as in Fig. 5, " V " type groove
71 are fixedly connected with first flange disk 61, are additionally provided with multiple reinforcing ribs 72 between " V " type groove 71 and first flange disk 61, two
It is bolted between ring flange, such as is bolted between first flange disk 61 and second flange disk 64, wherein one
The bolt hole of a ring flange such as first flange disk 61 is arcuate socket, in order to adjust corner, another ring flange such as second
Ring flange 64 is connect with lifting column 1, and X, Y-axis regulating device are equipped in lifting column.Such as lateral adjustments disk 3 and longitudinally adjust disk
3'.Column 8 is reliably fixed through the above structure, and convenient for accurate adjustment position.
Embodiment 3：
Of the invention for ease of understanding, on the basis of Examples 1 and 2, a kind of lift-on/lift-off type building-supporting device, it includes：
Fixing device 7, fixing device 7 are used for vertical columns 8；In Fig. 1,2, fixing device 7 makes column 8 by vertical fixation,
And the axial reference of column 8 can be transferred to other component, such as gyroscope.
Rotating-table apparatus 6, rotating-table apparatus 6 are fixedly connected with fixing device 7, and fixing device 7 can be made to be rotated along trunnion axis；
Under the effect of gravity, column 8 is rough keeps vertical.As shown in Fig. 1,2.
Lifting column 1, lifting column 1 are connect with rotating-table apparatus 6, and the bottom of lifting column 1 is equipped with base for post 105, and lifting column 1 is equipped with
The support arm 103 of opening, column 8 are located between the support arm 103 opened, and the free end of support arm 103 is equipped with lifting jack
104。
In preferred scheme such as Fig. 2,5, the fixing device 7 uses the structure of embodiment 2.
Second flange disk 64 is fixedly connected with lifting column 1, and the position of both sides is equipped between second flange disk 64 and lifting column 1
Fixing muscle 65.
In preferred scheme such as Fig. 2, in the lifting column 1, fixed column 102 is socketed with portable pillar 101, fixed column 102
Screw jack, preferably electric screw-jacks are equipped between portable pillar 101.In order to finely tune the height of " V " type groove 71
Journey.Alternative screw jack can also be replaced by hydraulic jack.
In preferred scheme such as Fig. 2,3,4, lateral adjustments disk 3 and/or longitudinally adjust disk 3' are equipped in portable pillar 101；
In the lateral adjustments disk 3 and longitudinally adjust disk 3', the component of two relative motions is connected by guide rail 31, and wherein one
A moving component is equipped with stop nut 34, and the rotatable adjusting screw rod 39 not being axially movable connects with 34 screw thread of stop nut
It connects.The limit of adjusting screw rod 39 uses the structure of limited block 33 and stop nut 34 in this example, accordingly in adjusting screw rod 39
It also is provided with the stage coordinated with limited block 33.It is equipped with handle 35 in the end of adjusting screw rod 39.Or preferably such as Fig. 4, adjust
The end of screw rod 39 is connect with retarder 37, and retarder 37 is connect with regulation motor 38, and the retarder 37 in this example preferably uses
RV retarders, i.e. planetary cycloidal pin gear two stage reducer are commercially available product, and producer is essence retarder, and regulation motor 38 is adopted
Use servo motor.
In preferred scheme such as Fig. 2,5, it is installed with locating rod 5 in the side of " V " type groove 71, the free end of locating rod 5 is set
There is the laser emitter 51 for being perpendicularly oriented to ground.Before lifting, X, Y are generated according to the parameter position of support device and locating rod 5
The axial location of column 8 is transferred near the position in ground where laser emitter 51 by the parameter of axis, is laterally adjusted adjusting
When saving disk 3 and longitudinally adjust disk 3', operating personnel only need observation transfer axis with the transmitting laser of laser emitter 51 to agreeing to do a favour
Condition, when the laser of laser emitter 51 is aligned with transfer axis, then column 8 realizes alignment, thus greatly improves adjusting efficiency.
In preferred scheme such as Fig. 1,2, the bottom of base for post 105 is arc, and pedestal 12 is corresponding arc, base for post 105
In on pedestal 12, polytetrafluoroethylene (PTFE) axle sleeve is equipped between base for post 105 and the arcwall face of pedestal 12；Structure in this example, substantially carries
The high efficiency of leveling, it is generally the case that due to the constant height of pedestal 12, by the lifting thousand in a wherein support arm 103
Jin top 104 is set as corresponding steady state value, therefore only the lifting jack 104 adjusted in a support arm 103 is needed to can be realized
Fast leveling.In preferred scheme, level meter is equipped on base for post 105.Level meter is connect with control device, control device with it is aobvious
Showing device connects, to assist leveling.Lifting jack 104 preferably uses electric or hand screw jack.
Structure after the completion of lifting is as shown in Figure 6, later carry out shear wall or fill wall installation, joint location with cut
The formwork erection of power wall pours, the lifting of crossbeam 14, that is, completes the installation process of assembled architecture.
When lifting, the L first according to the position of column 8 and the parameter positioning pedestal 12 of support device, such as in Fig. 2 is flat
Pedestal 12, is lifted the lifting column 1 for installing top in place, will tentatively lifted very heavy by the distance of shifting, the position of positioning transfer axis
104 leveling are pushed up, loop wheel machine lifts by crane column 8, reaches the position of " V " type groove 71, and installation stretching wire rope 2 installs cushion block 9, again
Compensative level gap accumulated error and structural member deform accumulated error, adjust the angular errors compensation of rotating-table apparatus 6, open laser
Transmitter 51,8 X of adjusting post, Y-axis position column 8 is connected by the height and position of 1 adjusting post 8 of lifting column first
Then steel-tube construction connects reinforcement structure, can start formwork erection cast at this time.The quick accurate of column is completed by above step
Lifting.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, mutually can arbitrarily combine.The protection model of the present invention
Enclose the equivalent replacement side of technical characteristic in the technical solution that should be recorded with claim, including the technical solution of claim record
Case is protection domain.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of base construction of lift-on/lift-off type building-supporting device, it is characterized in that：Including lifting column（1）, lifting column（1）Bottom
Equipped with base for post（105）, lifting column（1）Position close to bottom is equipped with the support arm opened（103）, support arm（103）Freedom
End is equipped with lifting jack（104）.
2. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 1, it is characterized in that：In base for post
（105）Lower section be equipped with pedestal（12）, base for post（105）Bottom be arc, pedestal（12）For corresponding arc, base for post（105）
Positioned at pedestal（12）, arcwall face contacts with each other.
3. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 2, it is characterized in that：Base for post（105）
Bottom be indent arc, pedestal（12）Top be evagination arc.
4. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 2, it is characterized in that：Base for post（105）
Bottom be evagination arc, pedestal（12）Top be indent arc.
5. according to a kind of base construction of lift-on/lift-off type building-supporting device of claim 2 ~ 3 any one of them, it is characterized in that：
Base for post（105）With pedestal（12）Arcwall face between be equipped with polytetrafluoroethylene (PTFE) axle sleeve.
6. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 1, it is characterized in that：The lifting
Jack（104）For hydraulic jack, hand power screw jack and electric screw-jacks.
7. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 1, it is characterized in that：Lifting jack
（104）Between line, be located at the column parallel with the line（8）Except section.
8. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 1, it is characterized in that：The lifting
Column（1）In, fixed column（102）With portable pillar（101）Socket, fixed column（102）With portable pillar（101）Between be equipped with spiral it is very heavy
Top.
9. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 8, it is characterized in that：Fixed column
（102）With suspension cable（11）One end connection, suspension cable（11）The other end connect with ground.
10. a kind of base construction of lift-on/lift-off type building-supporting device according to claim 1, it is characterized in that：The liter
Column drops（1）In, portable pillar（101）With " V " type groove（71）Connection, " V " type groove（71）Axis it is perpendicular to the ground, in " V " type groove
（71）Both sides be equipped with the edge of a wing（73）, stretching wire rope（2）Both ends and the edge of a wing（73）Connection, in stretching wire rope（2）With " V "
Type groove（71）The space of inside is used for vertical columns（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547620.5A CN108678396B (en) | 2018-05-31 | 2018-05-31 | Base structure of hoisting type building supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810547620.5A CN108678396B (en) | 2018-05-31 | 2018-05-31 | Base structure of hoisting type building supporting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108678396A true CN108678396A (en) | 2018-10-19 |
| CN108678396B CN108678396B (en) | 2021-03-26 |
Family
ID=63809292
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810547620.5A Expired - Fee Related CN108678396B (en) | 2018-05-31 | 2018-05-31 | Base structure of hoisting type building supporting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005209A (en) * | 2019-04-24 | 2019-07-12 | 中交第二航务工程局有限公司 | A kind of walking multiple degrees of freedom stretch-draw jack hydraulic jumbo certainly |
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| WO2008118170A1 (en) * | 2007-03-26 | 2008-10-02 | Visual Connections, Inc. | Automatic needle guard for medication pen |
| CN201666012U (en) * | 2010-03-30 | 2010-12-08 | 中十冶集团有限公司 | Lift-type movable work shed |
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| CN206397179U (en) * | 2017-01-04 | 2017-08-11 | 甘肃中水电水工机械有限公司 | A kind of steel-structure factory building pre-buried steel structure column apparatus for correcting |
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2018
- 2018-05-31 CN CN201810547620.5A patent/CN108678396B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| WO2008118170A1 (en) * | 2007-03-26 | 2008-10-02 | Visual Connections, Inc. | Automatic needle guard for medication pen |
| CN201666012U (en) * | 2010-03-30 | 2010-12-08 | 中十冶集团有限公司 | Lift-type movable work shed |
| CN102140897A (en) * | 2011-04-02 | 2011-08-03 | 建湖县鸿达阀门管件有限公司 | Automatic racking device for drill rod |
| CN206397179U (en) * | 2017-01-04 | 2017-08-11 | 甘肃中水电水工机械有限公司 | A kind of steel-structure factory building pre-buried steel structure column apparatus for correcting |
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| CN110005209A (en) * | 2019-04-24 | 2019-07-12 | 中交第二航务工程局有限公司 | A kind of walking multiple degrees of freedom stretch-draw jack hydraulic jumbo certainly |
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| CN108678396B (en) | 2021-03-26 |
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