CN201756804U - Self-climbing type lifting mechanism - Google Patents
Self-climbing type lifting mechanism Download PDFInfo
- Publication number
- CN201756804U CN201756804U CN2010201535580U CN201020153558U CN201756804U CN 201756804 U CN201756804 U CN 201756804U CN 2010201535580 U CN2010201535580 U CN 2010201535580U CN 201020153558 U CN201020153558 U CN 201020153558U CN 201756804 U CN201756804 U CN 201756804U
- Authority
- CN
- China
- Prior art keywords
- self
- lifting mechanism
- locking piece
- carriage
- climbing
- 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 - Lifetime
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The utility model provides a self-climbing type lifting mechanism which comprises a standing pillar, a lifting plate, an oil cylinder, a first sliding apparatus, and a second sliding apparatus. The two ends of the oil cylinder are respectively connected with the first sliding apparatus and the second sliding apparatus. Pressing apparatuses are arranged at two ends of one side of a locking piece. A back-up block is connected with the sliding apparatuses. The lifting mechanism further includes a direction guide apparatus. Plate holes are distributed with equal distances, and the largest travelling range of a piston rod is greater than or equal to the interval space between two plate holes. The locking piece is provided inside the sliding apparatuses and the two ends of the other side of the locking piece are provided respectively with position limiting protuberance and an end part. The position limiting protuberance is provided with a guide plane and a position limiting plane while the end part is provided with an end face and a position clamping face. The utility model is designed in such a manner that the functions of the lifting of the standing pillar and the self-climbing of the lifting mechanism are realized by two apparatuses, which means that when faults occur, more convenient repair and change can be made. The bi-directional design of the locking piece also enables the lifting mechanism to self-climb or self-descend, which saves costs and increases working efficiency.
Description
Technical field
The utility model relates to a kind of mechanical device that is used for lifting between the floor of building operations building site, but especially for the lifting mechanism of the self-climbing of the fixed boom of concrete distributing.
Background technology
In the high-building construction process, increase along with the height of building, the construction machine that flooring is used also must raise along with the rising of flooring, thus need a kind of mechanical device can be at the fixing construction implement of floor gap lifting, as fixed concrete placing boom.
When building machinery was given rise to the last layer flooring by lifting device, lifting device was retained on the original floor, in order to finish next lifting circulation, lifting device also must be risen on the corresponding flooring of high one deck accordingly.Present way has: lifting device is removed, be transported to upper floor then, perhaps with manual or electric lifting tool lifting device is risen to upper floor.
As publication number is the patent application document of CN101512082A, and it provides a kind of coagulation upper conveyor of being furnished with boom on the adjustable for height coagulation.But above-mentioned publication remains in defective, and one, the guide rail that climbs of this device are offered porose window and snapped in for lock piece, and the effect that has guide rail simultaneously and supply the lock piece screens, so the intensity of the guide rail that climbs will be descended, in case and its when breaking down, it is complicated that maintenance and transposing become; Its two, the lock piece of this device only has the effect of monodirectional locking, and pillar or load are risen, the rising of self still need be finished by other haulage gears (as hoist engine), and structure is complicated.
The utility model content
But one of the purpose of this utility model provides a kind of lifting load and realizes the also relative simple mechanism of self-climbing and structure; Another purpose of the present utility model provides a kind of lifting mechanism that improves the self-climbing of guide rail intensity.
In order to solve the problems of the technologies described above, the lifting mechanism of the utility model self-climbing comprises: column, side are provided with a stake pocket along its longitudinal extension; Raising board parallels with column and to be arranged on described stake pocket inside, which is provided with plate hole; Hydraulic cylinder, in be provided with piston and piston rod; Supporting mechanism; First and second carriages comprise a guiding body respectively, and are arranged on the locking piece that flexibly connects with the guiding body in the described guiding body; Described locking piece one side two ends are respectively equipped with restriction protrusion and end; Described restriction protrusion is provided with guide surface and confined planes, and described end is provided with screens face, at the two ends of described locking piece opposite side hold down gag is set respectively; Guiding device comprises guide holder and guide strip, and described guide strip is arranged on described stake pocket two inboards; Described guide holder is arranged on described guiding body both sides; Described hydraulic cylinder two ends are connected with second carriage, one end with first carriage respectively; Described supporting mechanism is arranged on first or second carriage.
Can be separately for the raising board of locking piece location and the guiding device with guide effect, promptly, make that each device is more independent climbing and two functions that lead realize by two devices, when breaking down, keep in repair and transposing is more prone to; Simultaneously, the newly-designed locking piece of the utility model has two-way lock function, and the design of its bidirectionally limited projection makes climbing device can finish the lifting of column and two actions of self climbing; Owing between two restriction protrusion of locking piece, be provided with two guide surfaces, make two restriction protrusion in the process that rises or descend, can slip over the border on plate hole inwall and raising board surface very smooth-goingly; Confined planes makes locking piece withstand the inwall up and down of plate hole, reach the effect of longitudinal spacing, when confined planes withstands the inwall of plate hole, screens face also withstands the raising board surface, reach the effect of cross spacing, it is excessive and influence locating effect to cross ambassador's locking piece rotation amplitude with the elastic force of avoiding hold down gag.Acting in conjunction by confined planes and screens face makes locking piece more firmly to fix with raising board.
Described plate hole is for being equally spaced, and the range of piston rod is more than or equal to the center to center distance of described adjacent plate hole.
Above plate hole be equally spaced and piston rod stroke and plate hole center to center distance between the design of relation, guaranteed that the restriction protrusion of second locking piece can snap in the adjacent plate hole at least when the restriction protrusion that hydraulic cylinder drives first locking piece is blocked a certain plate hole in the action that continues.
Described hydraulic cylinder comprises rod chamber and rodless cavity, and its distribution mode has multiple, and it is a kind of to be: rod chamber is connected with the described guiding body of first carriage, and rodless cavity is connected with the described guiding body of second carriage; Another kind is: rod chamber is connected with the described guiding body of second carriage; Rodless cavity is connected with the described guiding body of first carriage.
The design scheme of guide holder and guide strip also has multiple, and the described guide holder of the first is formed guide rail by two boards, and described guide strip embeds in the described guide rail; It two is that described guide holder is a directive wheel, and described guide strip is made up of two boards, and places described directive wheel both sides.
Described hold down gag comprises a group permanent-magnet and with the spring of its driving; Described raising board is flat board or bending plate; Described stake pocket is " V " shape or " U " shape; Described locking piece is " X " shape or " Y " shape or "T"-shaped.
The lifting mechanism of the utility model self-climbing has following advantage: one, the track of the raising board of screens and column and load operation separately when the utility model handle supplied lifting column and load, make that the function of each device is simpler, and the intensity of assurance mechanism, when breaking down, it is convenient to maintenance and transposing more; They are two years old, the locking piece that the utility model adopts is a bi-directional design, makes climbing device can finish lifting and two actions of self-climbing of load and column, and need not by other haulage gear, make simple in structurely, and reduce the instability of coming because of haulage gear manual operation generation.
Description of drawings
Fig. 1 is the lifting mechanism elevation of the utility model self-climbing.
Fig. 2 is the lifting mechanism side sectional view of the utility model self-climbing.
Fig. 3 is the structure chart of the lifting mechanism locking piece of the utility model self-climbing.
Fig. 4 is the vertical view of the lifting mechanism guiding device of the utility model self-climbing.
Fig. 5 a is the schematic diagram of lifting mechanism lifting column when deciding the basic point step in the using method of lifting mechanism of the utility model self-climbing.
Fig. 5 b is the schematic diagram of lifting mechanism lifting column when column arrives step in the using method of lifting mechanism of the utility model self-climbing.
Fig. 5 c is the schematic diagram of using method lifting mechanism lifting column when playbacking the ground zero step of the lifting mechanism of the utility model self-climbing.
Fig. 6 a is climb voluntarily a schematic diagram when deciding the basic point step of the using method lifting mechanism of the lifting mechanism of the utility model self-climbing.
Fig. 6 b is climb voluntarily a schematic diagram when hydraulic cylinder and carriage arrive step of the using method lifting mechanism of the lifting mechanism of the utility model self-climbing.
Fig. 6 c is climb voluntarily a schematic diagram when playbacking the ground zero step of the using method lifting mechanism of the lifting mechanism of the utility model self-climbing.
Description of reference numerals in the lifting mechanism accompanying drawing of the utility model self-climbing:
10-column 11-stake pocket 20-raising board
21-plate hole 30-guiding device 31-guide holder
The 32-guide strip 40-first carriage 41-second carriage
The 420-first guiding body 421-second guiding body 430-first upper end
The 431-first bottom 432-second upper end 433-second bottom
Guide surface on first time guide surface 46-second of guide surface 45-on the 44-first
Screens face 51-first upper limit plane on second time guide surface 50-first of 47-
Screens face on first time screens face 53-of 52-, the first lower limit plane 54-second
Second time screens face 57-of 55-second upper limit plane 56-, the second lower limit plane
60-oil cylinder 61-rod chamber 62-rodless cavity
63-piston 64-piston rod 70-back-up block
81-spring 90-first locking piece
The 91-second locking piece 92-first upper limit projection 93-first lower limit projection
The 94-second upper limit projection 95-second lower limit projection 96-first plate hole
The 97-second plate hole 98-the 3rd plate hole 99-the 4th plate hole
The specific embodiment
Be described in further detail below in conjunction with the lifting mechanism and the using method thereof of accompanying drawing the utility model self-climbing.
As shown in Figure 1 and Figure 2, the lifting mechanism of the utility model self-climbing comprises: column 10, side are provided with a stake pocket 11 along its longitudinal extension, and present embodiment central post groove 11 is " V " shape, and it can also be " U " shape; Raising board 20, raising board is dull and stereotyped in the present embodiment, it can also be bending plate; Parallel with column 10 and to be arranged on stake pocket 11 inside, which is provided with some plate holes 21; Hydraulic cylinder, hydraulic cylinder is an oil cylinder 60 in the present embodiment, is provided with piston 63 and piston rod 64 in it; Supporting mechanism, supporting mechanism is a back-up block 70 in the present embodiment, and its preferred embodiment is for being arranged on first carriage 40, and it can also be arranged on second carriage 41.First carriage 40 and second carriage 41 comprise the first guiding body 420 and the second guiding body 421 respectively, and are arranged in the first guiding body 420 and the second guiding body 421 first locking piece 90 and second locking piece 91 with its flexible connection.Two ends at locking piece 90,91 opposite sides are provided with hold down gag respectively, and hold down gag comprises a group permanent-magnet (not shown) and with the spring 81 of its driving.
As shown in Figure 3, first locking piece, 90 1 side two ends are respectively equipped with the first upper limit projection 92 and corresponding with it first upper end 430 and the first lower limit projection 93 and corresponding with it first bottom 431; Second locking piece, 91 1 side two ends are respectively equipped with between the second upper limit projection 94 and corresponding with it second upper end 432 and the second lower limit projection 95 and corresponding with it second bottom, 433, the first upper limit projections 92 and the first lower limit projection 93 and are provided with guide surface 44 and first time guide surface 45 on first; Be provided with between the second upper limit projection 94 and the second lower limit projection 95 that guide surface 46 on second and second time guide surface 47, the first upper limit projection 92 are provided with first upper limit plane 51 and are arranged on that first upper end 430 intersects with it first on screens face 50; The first lower limit projection 93 is provided with the first lower limit plane 53 and is arranged on first time screens face 52 that intersect with it first bottom 431; The second upper limit projection 94 be provided with second upper limit plane 55 and be arranged on that second upper end 432 intersects with it second on screens face 54; The second lower limit projection 95 is provided with the second lower limit plane 57 and is arranged on second time screens face 56 that intersect with it second bottom 433, and the locking piece of present embodiment is " X " shape, and it can also be " Y " shape or "T"-shaped.
As shown in Figure 4, guiding device comprises guide holder 31 and guide strip 32, and guide strip 32 is arranged in the stake pocket 11; Guide holder 31 is arranged on guiding body 42,42 ' both sides; Preferred embodiment of the present utility model is that guide holder 31 is formed guide rail by two boards, and guide strip 32 embeds in the guide rails.It can also be for guide holder be a directive wheel, and guide strip is made up of two boards, and places the directive wheel both sides.
As shown in Figure 2, oil cylinder 60 two ends are connected with second carriage, 41 1 ends with first carriage 40 respectively, and oil cylinder 60 comprises rod chamber 61 and rodless cavity 62, and rod chamber 61 is connected with the guiding body 42 of first carriage 40 in the present embodiment; Rodless cavity 62 is connected with the guiding body 42 of second carriage 41.As another embodiment, rod chamber is connected with the guiding body of second carriage, and rodless cavity is connected with the guiding body of first carriage.Plate hole 21 is for being equally spaced; The range of piston rod is more than or equal to adjacent plate hole center to center distance.
The using method of the lifting mechanism of the utility model self-climbing comprises lifting mechanism lifting column and lifting mechanism two steps of climbing voluntarily, and lifting column step comprises the steps.
Shown in Fig. 5 a, step 1, decide basic point: the back-up block 70 of being located at second carriage 41 is supported in floor, and the piston 63 in the oil cylinder 60 is in start position, and have the beeline of both having established between two carriages this moment; First locking piece 90 of first carriage 40 is rotation counterclockwise under the effect of hold down gag, and is pressed towards raising board 20; The first upper limit projection 92 of first locking piece 90 contacts simultaneously, and the second upper limit projection 94 of second locking piece 91 contacts with the inboard of raising board 20 with the inboard of raising board 20; Change the turnover oil direction of oil cylinder 60 by the reversal valve of hydraulic system, oil cylinder 60 is connected hydraulic oil, rodless cavity 62 oil-feeds, when rod chamber 61 is fuel-displaced, piston rod 64 is overhanging, oil cylinder 60 drives first carriage 40 to begin to move upward, when first carriage 40 moves to the position of first plate hole 96, first locking piece 90 first on guide surface 44 slip over the border on 96 times inwalls of first plate hole and surface, the first upper limit projection 92 of first locking piece 90 is pressed in first plate hole 96 by spring 81, first upper limit plane 51 contacts with inwall on first plate hole 96, screens face 50 contacts with raising board 20 surfaces on first, screens face 50 actings in conjunction on first upper limit plane 51 and first, make the locking piece 90 of winning stable, the weight of column 10 and raising board 20 is by first locking piece 90, oil cylinder 60, second carriage 41, back-up block 70 is delivered to floor successively.
Step 2, column start: oil cylinder 60 continuation effects, and first carriage 40 continues to move upward, and begins to withstand raising board 20 and drives column 10 and load is synchronized with the movement;
Shown in Fig. 5 b, step 3, column arrives: under the continuation effect of oil cylinder 60, first locking piece 90 of first carriage 40 drives raising board 20 and column 10 rises until the height that reaches setting; Oil cylinder 60 inner carriers 63 are in the final position, and have the longest distance of both having established between two carriages this moment; Simultaneously, because the effect of spring 81, second locking piece 91 of second carriage 41 second on guide surface 46 slip over the border on 97 times inwalls of second plate hole and surface, the second upper limit projection 94 of second locking piece 91 is pressed in second plate hole 97 by spring 81, second upper limit plane 55 contacts with inwall on second plate hole 97, screens face 54 contacts with raising board 20 surfaces on second, withstand raising board 20 and column 10, screens face 54 actings in conjunction on second upper limit plane 55 and second, make that second locking piece 91 is stable, the weight of column 10 and raising board 20 is delivered to floor by second locking piece 91 and the back-up block 70 of second carriage 41.
Shown in Fig. 5 c, step 4, ground zero playbacks: oil cylinder 60 conversion oil-feed and fuel-displaced directions, oil cylinder 60 is connected hydraulic oil, and rodless cavity 62 is fuel-displaced, during rod chamber 61 oil-feeds, piston rod 64 shrinks, oil cylinder 60 inner carriers 63 reverse movements are to start position, and first carriage 40 drives first locking piece 90 and moves downward, and has the beeline of setting up to returning to two carriages.
Step 1 to step 4 is a complete lifting action, moves in circles and can finish the continuous lifting of column and load.
To go to finish lifting moving then if enter higher floor, and then described first and first carriage, hydraulic cylinder and bracing or strutting arrangement need rise to new floor, and its step of climbing voluntarily comprises the steps.
Shown in Fig. 6 a, step 1, decide basic point: column 10 is fixed in floor, and first and second locking pieces 91 that first and second carriages are 41 li are the clockwise direction rotation under the effect of spring 81, and is pressed towards raising board 20; Has the beeline of both having established between two carriages.
Shown in Fig. 6 a, step 2: remove former basic point: back-up block 70 is packed up and no longer is fixed in floor; Simultaneously, carriage and oil cylinder glide owing to conducting oneself with dignity when losing support, the second lower limit projection 95 of second locking piece 91 is pressed in the 4th plate hole 99 by spring 81, and 99 times inwalls of the second lower limit plane 57 and the 4th plate hole contact, and second time screens face 56 contacts with raising board 20 surfaces.
Step 3, oil cylinder 60 and carriage start: change the turnover oil direction of elevating ram 60 by the reversal valve of hydraulic system, oil cylinder 60 is connected hydraulic oil, rodless cavity 62 oil-feeds, when rod chamber 61 was fuel-displaced, piston rod 64 was overhanging, drives first carriage 40 and moves upward.
Shown in Fig. 6 b, step 4: hydraulic cylinder and carriage arrive: oil cylinder 60 is shifted first carriage 40 height of setting onto, has the longest distance of setting at this moment between two carriages; And the first lower limit projection 93 of first locking piece 90 of first carriage 40 is pressed in the 3rd plate hole 98 by spring 81, and 98 times inwalls of the first lower limit plane 53 and the 3rd plate hole contact, and first time screens face 52 contacts with raising board 20 surfaces.
Shown in Fig. 6 c, step 5: ground zero playbacks: oil cylinder 60 conversion oil-feed and fuel-displaced directions, change the turnover oil direction of elevating ram 60 by the reversal valve of hydraulic system, oil cylinder 60 is connected hydraulic oil, and rod chamber 61 oil-feeds are when rodless cavity 62 is fuel-displaced, piston rod 64 shrinks, drive second carriage 41 and second locking piece 91 moves upward, have the beeline of both having established, finish a self-climbing action up to returning to two carriages.
Step 1 to step 5 is a complete action of climbing, and moves in circles and can realize constantly climbing of climbing device
Otherwise then can realize the downward motion process of whole device.
Claims (11)
1. the lifting mechanism of self-climbing comprises
Column, side are provided with a stake pocket along its longitudinal extension;
Hydraulic cylinder, in be provided with piston and piston rod;
Supporting mechanism;
It is characterized in that, also comprise
First and second carriages comprise a guiding body respectively, and are arranged on the locking piece that flexibly connects with the guiding body in the described guiding body; Described locking piece one side two ends are respectively equipped with restriction protrusion and end; Described restriction protrusion is provided with guide surface and confined planes, and described end is provided with screens face, at the two ends of described locking piece opposite side hold down gag is set respectively;
Raising board parallels with column and to be arranged on described stake pocket inside, which is provided with plate hole;
Guiding device comprises guide holder and guide strip, and described guide strip is arranged on described stake pocket two inboards; Described guide holder is arranged on described guiding body both sides;
Described hydraulic cylinder two ends are connected with second carriage, one end with first carriage respectively;
Described supporting mechanism is arranged on first or second carriage.
2. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: described plate hole is for being equally spaced.
3. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: the range of described piston rod is more than or equal to the center to center distance of described adjacent plate hole.
4. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: described hydraulic cylinder comprises rod chamber and rodless cavity, wherein rod chamber is connected with the described guiding body of first carriage; Described rodless cavity is connected with the described guiding body of second carriage.
5. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: described hydraulic cylinder comprises rod chamber and rodless cavity, wherein rod chamber is connected with the described guiding body of second carriage; Described rodless cavity is connected with the described guiding body of first carriage.
6. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: described guide holder is formed guide rail by two boards, and described guide strip embeds in the described guide rail.
7. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: described guide holder is a directive wheel, and described guide strip is made up of two boards, and places described directive wheel both sides.
8. the lifting mechanism of self-climbing according to claim 1 is characterized in that: described hold down gag comprises a group permanent-magnet and with the spring of its driving.
9. the lifting mechanism of self-climbing according to claim 1, it is characterized in that: described raising board is flat board or bending plate.
10. the lifting mechanism of self-climbing according to claim 1 is characterized in that: described stake pocket is " V " shape or " U " shape.
11. the lifting mechanism of self-climbing according to claim 3 is characterized in that: described locking piece is " X " shape or " Y " shape or "T"-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201535580U CN201756804U (en) | 2010-04-08 | 2010-04-08 | Self-climbing type lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201535580U CN201756804U (en) | 2010-04-08 | 2010-04-08 | Self-climbing type lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201756804U true CN201756804U (en) | 2011-03-09 |
Family
ID=43644077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201535580U Expired - Lifetime CN201756804U (en) | 2010-04-08 | 2010-04-08 | Self-climbing type lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201756804U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858146A (en) * | 2010-04-08 | 2010-10-13 | 上海汽车改装厂有限公司 | Self-climbing lifting mechanism and using method thereof |
| WO2012142785A1 (en) * | 2011-04-19 | 2012-10-26 | 湖南三一智能控制设备有限公司 | Climbing device for construction machinery and distributing mast |
| CN103303823A (en) * | 2013-06-13 | 2013-09-18 | 山东丰汇设备技术有限公司 | Supporting structure of internal climbing tower crane |
-
2010
- 2010-04-08 CN CN2010201535580U patent/CN201756804U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858146A (en) * | 2010-04-08 | 2010-10-13 | 上海汽车改装厂有限公司 | Self-climbing lifting mechanism and using method thereof |
| WO2012142785A1 (en) * | 2011-04-19 | 2012-10-26 | 湖南三一智能控制设备有限公司 | Climbing device for construction machinery and distributing mast |
| CN103303823A (en) * | 2013-06-13 | 2013-09-18 | 山东丰汇设备技术有限公司 | Supporting structure of internal climbing tower crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101858146B (en) | Self-climbing lifting mechanism and using method thereof | |
| CN202248807U (en) | Wall surface leveling calender | |
| CN201574358U (en) | Walking type translation thruster | |
| CN101979803B (en) | Method for mounting prefabricated members of roof or floor in place and mounting equipment | |
| CN201513120U (en) | Longitudinal and transversal movement device of drilling machine | |
| CN201428114Y (en) | Propulsion equipment for the construction of large-scale steel arched girders and steel box girders | |
| CN207003980U (en) | A kind of Moveable building construction platform | |
| CN102535895A (en) | Composite lifting stage | |
| CN211812921U (en) | Fixed hydraulic guide rail lift goods lift | |
| CN105088959A (en) | Self-adaptation continuous pushing system for steel truss beam joints | |
| CN211500694U (en) | Coal mine tunnel supporting equipment | |
| CN201756804U (en) | Self-climbing type lifting mechanism | |
| CN203603429U (en) | Wall whitewashing machine and lifting guide rail device thereof | |
| CN211949497U (en) | Construction platform convenient to remove | |
| CN202467279U (en) | Sliding-rail lifting shifting garage | |
| CN206144559U (en) | Portable mining lifting support that fixes | |
| CN210420901U (en) | Bridge reinforcing apparatus | |
| CN205046480U (en) | Steel purlin girder segment point self -adaptation pushes away system in top in succession | |
| CN108265830B (en) | Multi-station movable construction seat and assembly jacking type building construction method | |
| CN2833088Y (en) | Multi-direction high-pressure rotary-jetting drilling device | |
| CN202450806U (en) | Combined lifting stage | |
| CN210358603U (en) | Double-gantry hydraulic press for welding and shaping | |
| CN207956891U (en) | Engine assembly trolley lane-jumper | |
| CN103787233A (en) | Movable lifting device | |
| CN2937353Y (en) | Raising orchestra pit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 201613 No. 39, Jing Jing Road, Songjiang Industrial Zone, Shanghai Co-patentee before: Putzmeister Machinery (Shanghai)Co., Ltd. Patentee before: Shanghai Automobile Refit Factory Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110309 |
|
| CX01 | Expiry of patent term |