CN213417588U - Bridge bottom surface construction platform - Google Patents
Bridge bottom surface construction platform Download PDFInfo
- Publication number
- CN213417588U CN213417588U CN202022048285.XU CN202022048285U CN213417588U CN 213417588 U CN213417588 U CN 213417588U CN 202022048285 U CN202022048285 U CN 202022048285U CN 213417588 U CN213417588 U CN 213417588U
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- flower basket
- construction
- construction hanging
- hanging flower
- bridge
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Abstract
The utility model relates to a bridge bottom surface construction platform, it includes the construction hanging flower basket, be provided with on the construction hanging flower basket and hang the subassembly, it is used for being connected with the bridge to hang the subassembly, be provided with the fixed subassembly of multiunit on the construction hanging flower basket, fixed subassembly includes fixed plate and attaching plate, the top butt of fixed plate and construction hanging flower basket, the bottom butt of attaching plate and bridge, be provided with the connecting piece between fixed plate and the attaching plate, still be provided with the promotion subassembly that is used for promoting the material on the construction hanging flower basket. This application has the effect that can fix the construction hanging flower basket.
Description
Technical Field
The application relates to the field of bridge construction equipment, in particular to a bridge bottom surface construction platform.
Background
With the continuous change of times and the rapid traffic industry, a bridge is an essential item in traffic construction, the bridge is generally erected on rivers, lakes and seas, so that vehicles, pedestrians and other structures capable of passing smoothly are increased gradually along with the demand of bridge construction, the demand of bridge construction equipment is also increased, a hanging basket platform for bridge construction is one of the hanging basket platforms, and hanging basket platforms on the market are various in types and various in styles.
The current chinese patent with an authorization publication number CN205999795U discloses a bridge construction hanging basket platform, which has the key points of the technical scheme: including sleeve pipe, auxiliary rod, air cushion, fender frame and hanging flower basket door, sheathed tube surface mosaic has the binding and detains the stake, and the below of binding is installed and is detained the stake, the auxiliary rod is connected with the telescopic link, be fixed with safe the knot on the sliding sleeve, the sleeper is installed to the below of steelframe, the upper end of air cushion is fixed with the baffle, the below of air cushion is provided with the steelframe, it is connected with the steelframe to keep off the frame, the sleeve pipe is all installed to the left and right sides of hanging flower basket door, and the hanging flower basket door is connected with the sleeve pipe through the fixed lock.
In view of the above-mentioned related art, the inventor believes that there is a defect that the hanging basket cannot be fixed and is easy to shake.
SUMMERY OF THE UTILITY MODEL
In order to fix the construction hanging basket, the application provides a bridge bottom surface construction platform.
The application provides a bridge bottom surface construction platform adopts following technical scheme:
the utility model provides a bridge bottom surface construction platform, includes the construction hanging flower basket, be provided with the subassembly of hanging on the construction hanging flower basket, hang the subassembly and be used for being connected with the bridge, be provided with the fixed subassembly of multiunit on the construction hanging flower basket, fixed subassembly includes fixed plate and attaching plate, the top butt of fixed plate and construction hanging flower basket, the bottom butt of attaching plate and bridge, be provided with the connecting piece between fixed plate and the attaching plate, still be provided with the promotion subassembly that is used for promoting the material on the construction hanging flower basket.
Through adopting above-mentioned technical scheme, when being under construction to the bridge bottom surface, the construction hanging flower basket is hung on the bridge through hanging the subassembly, the construction hanging flower basket is located the bridge under, the fixed upper surface at the construction hanging flower basket that sets up of fixed plate, the laminating of rigging plate is at the lower surface of bridge, and be provided with the connecting piece between fixed plate and the rigging plate, the connecting piece can make and keep away from each other between fixed plate and the rigging plate, make and can produce the interact power between construction hanging flower basket and the bridge, thereby fix the construction hanging flower basket in the below of bridge to a certain extent, in order to prevent that the construction hanging flower basket from taking place to rock, staff's safety has been.
Preferably, the connecting piece includes the spliced pole, the bottom and the fixed plate of spliced pole are connected, spliced pole cavity sets up, the spliced pole endotheca is equipped with the butt post, the top and the rigging board fixed connection of butt post, all be provided with the slider on a plurality of lateral walls of butt post, first spout has all been seted up on a plurality of inside walls of spliced pole, slider and first spout sliding fit.
Through adopting above-mentioned technical scheme, the fixed top that sets up at the fixed plate of spliced pole, the butt post can slide on the spliced pole through slider and spout, when fixing fixed construction hanging flower basket on the bridge, at first laminate the upper surface of construction hanging flower basket with the fixed plate, then slide the one end that the fixed plate was kept away from towards the spliced pole to the butt post, make the setting can laminate the bottom of bridge at the laminating board on butt capital end, accomplish the fixing between bridge and the construction hanging flower basket support, when the construction hanging flower basket is dismantled to needs, make the butt post towards the direction that is close to the fixed plate slide, make the laminating board no longer laminate with the bottom of bridge, just can remove the fixed between bridge and the construction hanging flower basket, the effect of convenient dismantlement has.
Preferably, still be provided with the pneumatic cylinder in the spliced pole, seted up the mounting groove in the spliced pole, the pneumatic cylinder is fixed to be set up in the mounting groove, the piston rod of pneumatic cylinder and the bottom fixed connection of butt joint post.
Through adopting above-mentioned technical scheme, the pneumatic cylinder passes through the fixed setting of mounting groove between spliced pole and butt post, and the direction of motion of pneumatic cylinder piston rod is unanimous with the gliding direction of butt post on the spliced pole, when the butt post that slides needs, stretches out or the withdrawal just can make the butt post slide on the length direction of spout through the piston rod of control pneumatic cylinder, has convenient to use, alleviates staff intensity of labour's effect.
Preferably, the lifting assembly comprises a hopper, a plurality of base angles of the hopper are provided with lifting cables, a winch is arranged on the construction hanging basket in a rotating mode, one end, far away from the hopper, of each lifting cable is wound on the winch, a driving motor is fixedly arranged on one side of the winch, and an output shaft of each driving motor is fixedly connected with a rotating shaft of the winch.
Through adopting above-mentioned technical scheme, the lifting unit sets up on the construction hanging flower basket, when the staff worked on the construction hanging flower basket and needed the material, at first adorned the material to the hopper in, then start driving motor, driving motor's output shaft is rotating the axis of rotation that is driving the capstan winch and is rotating to driving the capstan winch and taking place to rotate, the lifting cable encircles on the capstan winch, the lifting cable shortens, thereby near lifting the hopper to the construction hanging flower basket, have the effect of the staff material loading of being convenient for.
Preferably, the installation department has been seted up to the one end of construction hanging flower basket, be provided with the extension board in the installation department, the both sides of installation department just are located the construction hanging flower basket and all set up the second spout, the both sides of extension board respectively with two second spout sliding fit.
Through adopting above-mentioned technical scheme, the second spout has been seted up to the both sides of installation department, and the both ends of extension board all with second spout sliding fit for the extension board can slide on the construction hanging flower basket, and the extension board is located the installation department when the extension board is packed up, can prolong the length of construction hanging flower basket when extending the board roll-off, conveniently in the staff to some places that are difficult to touch on the bridge be under construction, make the construction hanging flower basket more convenient to use.
Preferably, the both sides of extension board all are provided with the connection rope, the fixed couple that is provided with of one end that is close to the construction hanging flower basket of connection rope, the both sides of the one end of construction hanging flower basket all are provided with the link, couple and link clearance fit.
Through adopting above-mentioned technical scheme, after extension board roll-off installation department, the connection rope that sets up in extension board both sides can be connected to the construction hanging flower basket through the couple on, and the construction hanging flower basket, connect and constitute stable triangle-shaped structure between rope and the extension board, can strengthen the stability of extension plate structure to a certain extent, the protection is the staff's of work safety on the extension board.
Preferably, the upper surface of extension board is provided with the stopper, the top of installation department just is located the construction hanging flower basket and has seted up the spacing groove, stopper and spacing groove sliding fit, be provided with the push-and-pull rod on the stopper, the push-and-pull rod passes the spacing groove and extends to the upper surface of construction hanging flower basket.
Through adopting above-mentioned technical scheme, behind the extension board roll-off installation department, the stopper that sets up on the extension board slides in the spacing groove on the construction hanging flower basket, after the extension board slided the limit distance, the stopper can not slide again to guarantee to a certain extent that the extension board can not roll-off construction hanging flower basket, make the structure of extension board on the construction hanging flower basket more stable, the push-and-pull rod of setting on the stopper can be used for sliding the extension board, further the convenience when having strengthened the use.
Preferably, handrails are provided at a plurality of sides of the construction basket, and the handrail near one side of the extension plate is provided at an upper surface of the extension plate.
Through adopting above-mentioned technical scheme, the handrail encircles and sets up on the construction hanging flower basket, and the handrail setting of extension board one side is on extending the board, and the handrail can surround the construction hanging flower basket, prolongs the height of construction hanging flower basket, provides the guarantee for staff's safety to a certain extent.
In summary, the present application includes at least one of the following beneficial technical effects:
1. this application is through setting up fixed plate and attaching plate, and the bottom of bridge and the upper surface of construction hanging flower basket are laminated respectively to fixed plate and attaching plate to set up the connecting piece and make fixed plate and attaching plate keep away from each other, thereby to a certain extent will construct the below of fixing at the bridge at the hanging flower basket, take place to rock with preventing the construction hanging flower basket, guaranteed staff's safety to a certain extent.
2. According to the hydraulic cylinder, the hydraulic cylinder is arranged in the connecting column, and the abutting column can slide in the length direction of the sliding groove by controlling the piston rod of the hydraulic cylinder to extend or retract, so that the hydraulic cylinder has the effects of being convenient to use and reducing the labor intensity of workers;
3. this application is through setting up the handrail on the construction hanging flower basket, and the height of extension construction hanging flower basket provides the guarantee to a certain extent for staff's safety.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a construction basket according to one embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a connector according to one embodiment of the present application;
FIG. 4 is a schematic structural diagram of a lifting assembly according to one embodiment of the present application.
Description of reference numerals: 1. constructing a hanging basket; 11. a hanging component; 12. an installation part; 121. an extension plate; 1211. connecting ropes; 1212. hooking; 1213. a limiting block; 1214. a push-pull rod; 122. a second chute; 123. a limiting groove; 13. hanging a ring; 14. a handrail; 2. a bridge; 3. a fixing assembly; 31. a fixing plate; 32. attaching a plate; 4. a connecting member; 41. connecting columns; 411. a first chute; 412. mounting grooves; 413. a hydraulic cylinder; 42. a butting post; 421. a slider; 5. a lifting assembly; 51. a hopper; 52. a hoisting cable; 53. a winch; 54. the motor is driven.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses a bridge bottom surface construction platform. Referring to fig. 1 and 2, a construction platform for the bottom surface of a bridge 2 comprises a construction hanging basket 1, wherein during construction, the construction hanging basket 1 is hung on the bridge 2 and is positioned at the bottom end of the bridge 2, so that the bottom surface of the bridge 2 is convenient to construct; the construction hanging basket 1 is provided with a hanging assembly 11 used for being connected with the bridge 2, the hanging assembly 11 comprises a plurality of H-shaped steel materials, the H-shaped steel materials can slide on the upper surface of the bridge 2, so that the position of the construction hanging basket 1 on the bridge 2 is changed, the hanging assembly 11 is provided with a crawling ladder, and workers can enter the construction hanging basket 1 from the upper surface of the bridge 2 through the crawling ladder; the side faces of the construction hanging basket 1 are provided with the handrails 14, the height of each handrail 14 is close to the height of a worker, and the handrails 14 are welded on the construction hanging basket 1, so that the worker can be prevented from falling from the construction hanging basket 1 to a certain extent, and the safety of the worker is protected; still be provided with the lifting means 5 that is used for promoting the material on the construction hanging flower basket 1, lifting means 5 can promote the material of construction usefulness to construction hanging flower basket 1 on, and is more convenient during the use.
Referring to fig. 1 and 2, a plurality of groups of fixing assemblies 3 are arranged on a construction hanging basket 1, the construction hanging basket 1 is hung at the bottom end of a bridge 2, when wind is high, the construction hanging basket 1 is prone to shaking, so that safety of workers is threatened, and articles on the construction hanging basket 1 are prone to being unstably placed, the fixing assemblies 3 arranged on the construction hanging basket 1 can fix the construction hanging basket 1 to a certain extent, and the construction hanging basket 1 is prevented from shaking; fixed subassembly 3 includes fixed plate 31 and attaching plate 32, the top butt of fixed plate 31 and construction hanging flower basket 1, attaching plate 32 and the bottom butt of bridge 2, fixed plate 31 and attaching plate 32 all have a great surface area, make fixed subassembly 3 and bridge 2 and construction hanging flower basket 1 between be connected more stable, be provided with connecting piece 4 between fixed plate 31 and the attaching plate 32, connecting piece 4 sets up between fixed plate 31 and attaching plate 32, can make fixed plate 31 and attaching plate 32 have the trend of keeping away from each other, thereby support tight construction hanging flower basket 1 and bridge 2, prevent that construction hanging flower basket 1 from taking place to rock.
Referring to fig. 3, the connecting member 4 includes a connecting column 41, the bottom end of the connecting column 41 is connected to the fixing plate 31, the connecting column 41 is hollow, the abutting column 42 is disposed in the connecting column 41, the top end of the abutting column 42 is fixedly connected to the attaching plate 32, the abutting column 42 and the connecting column 41 form a structure similar to a telescopic rod in the connecting column 41, the length of the abutting column 42 and the connecting column 41 can be extended or shortened, the fixing effect is achieved during extension, and the fixing releasing effect is achieved during shortening; the sliding blocks 421 are arranged on a plurality of outer side walls of the abutting column 42, the first sliding grooves 411 are formed in a plurality of inner side walls of the connecting column 41, the sliding blocks 421 are in sliding fit with the first sliding grooves 411, and equivalently, the abutting column 42 is in sliding fit with the connecting column 41, and the abutting column 42 can slide in the connecting column 41, so that the telescopic effect is realized; mounting groove 412 has been seted up in spliced pole 41, the mounting groove 412 internal fixation is provided with pneumatic cylinder 413, the piston rod of pneumatic cylinder 413 and the bottom fixed connection of butt post 42, when pneumatic cylinder 413 starts, the piston rod of pneumatic cylinder 413 stretches out, make butt post 42 slide in spliced pole 41, butt post 42 laminates the bottom of bridge 2 with rigging plate 32, the completion is fixed to construction hanging flower basket 1, when needs are relieved fixedly, restart pneumatic cylinder 413, make the piston rod of pneumatic cylinder 413 retract, the rigging plate 32 that sets up on butt post 42 top no longer with the bottom butt of bridge 2, fixed subassembly 3 has been relieved fixed to construction hanging flower basket 1, use pneumatic cylinder 413 as the power supply, and the steam generator is convenient to use, alleviate staff intensity of labour's effect.
Referring to fig. 4, the lifting assembly 5 comprises a hopper 51, when materials are required to be conveyed to the construction basket 1, the materials are placed in the hopper 51, a lifting cable 52 is arranged at a plurality of bottom corners of the hopper 51, a winch 53 is rotatably arranged on the construction basket 1, one end of the lifting cable 52 far away from the hopper 51 is wound on the winch 53, the winch 53 rotates to withdraw the lifting cable 52, so that the hopper 51 can be vertically displaced to convey the materials to the construction basket 1; one side of capstan winch 53 is fixed and is provided with driving motor 54, driving motor 54's output shaft and capstan winch 53's axis of rotation fixed connection, driving motor 54 starts the back, and driving motor 54's output shaft rotates, is driving capstan winch 53's axis of rotation and is rotating to make capstan winch 53 take place to rotate and withdraw lifting rope 52, use driving motor 54 to rotate capstan winch 53 and have convenient to use, reduce staff intensity of labour's effect.
Referring to fig. 1 and 2, an installation portion 12 is formed at one end of a construction hanging basket 1, the installation portion 12 is a cavity formed in one side of the construction hanging basket 1, an extension plate 121 is arranged in the installation portion 12, second sliding grooves 122 are formed in two sides of the installation portion 12 and located on the construction hanging basket 1, two sides of the extension plate 121 are respectively in sliding fit with the two second sliding grooves 122, the extension plate 121 is arranged in the installation portion 12 in a sliding mode, the extension plate 121 can extend out or retract, the installation portion 12 can accommodate the extension plate 121, and the extension plate 121 is placed in the installation portion 12 when retracted; the two sides of the extension plate 121 are both provided with a connection rope 1211, one end of the connection rope 1211, which is close to the construction hanging basket 1, is fixedly provided with a hook 1212, two sides of one end of the construction hanging basket 1 are both provided with a hanging ring 13, the hook 1212 is in clearance fit with the hanging ring 13, after the extension plate 121 extends out, the hook 1212 is hung on the hanging ring 13, so that the connection rope 1211 can fix the extension plate 121 to a certain extent, the connection rope 1211, the extension plate 121 and the construction hanging basket 1 form a triangular structure, and the structure of the extension plate 121 after extending out is more stable; the extension plate 121 can extend the length of the construction hanging basket 1 after extending out, so that the construction range of workers on the construction hanging basket 1 is larger, and the convenience in use is further enhanced.
Referring to fig. 2, a limiting block 1213 is arranged on the upper surface of the extension plate 121, a limiting groove 123 is formed in the top end of the mounting portion 12 and located on the construction hanging basket 1, the limiting block 1213 is in sliding fit with the limiting groove 123, after the extension plate 121 extends out of the mounting groove 412, the limiting block 1213 slides in the limiting groove 123, and after the extension plate 121 extends out to a limit distance, the limiting block 1213 abuts against one end of the limiting groove 123, so that the extension plate 121 cannot extend out any more, the extension plate 121 is limited, the extension plate 121 cannot extend out of the mounting portion 12 completely, and safety performance in use is enhanced; the limiting block 1213 is provided with a push-pull rod 1214, the push-pull rod 1214 passes through the limiting groove 123 and extends to the upper surface of the construction hanging basket 1, when the extension plate 121 is used, the extension plate 121 can extend out or retract into the construction hanging basket 1 by pushing the push-pull rod 1214, and the convenience in use is further enhanced; the handrail 14 near one side of the extension plate 121 is provided on the upper surface of the extension plate 121, and the extension plate 121 is also provided with the handrail 14, further enhancing safety in use.
The implementation principle of the bridge bottom construction platform in the embodiment of the application is as follows: during construction, firstly, the hanging component 11 is used for hanging the construction hanging basket 1 under the bridge 2, and then workers enter the construction hanging basket 1 through the crawling ladder on the hanging component 11; then, the hydraulic cylinder 413 is started, a piston rod of the hydraulic cylinder 413 extends out, the abutting column 42 is jacked upwards, the attaching plate 32 arranged at the top end of the abutting column 42 can be attached to the lower surface of the bridge 2, and the construction basket 1 is fixed; when materials are conveyed to the construction hanging basket 1, the materials are firstly put into the hopper 51, then the driving motor 54 is started, the output shaft of the driving motor 54 rotates to drive the winch 53 to rotate, and the winch 53 enables the hopper 51 to displace in the vertical direction, so that the materials are conveyed to the construction hanging basket 1; when the coverage of the construction basket 1 needs to be enlarged, the extension plate 121 can be slid out of the mounting portion 12 by using the push-pull rod 1214, and then the hook 1212 on the connecting rope 1211 is hung on the hanging ring 13 on the construction basket 1 to fix the extension plate 121; the construction hanging basket fixing device has the effects of fixing the construction hanging basket 1, being convenient to use and protecting workers.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a bridge bottom surface construction platform, includes construction hanging flower basket (1), be provided with on construction hanging flower basket (1) and hang subassembly (11), it is used for being connected its characterized in that with bridge (2) to hang subassembly (11): be provided with fixed subassembly (3) of multiunit on construction hanging flower basket (1), fixed subassembly (3) are including fixed plate (31) and attaching plate (32), the top butt of fixed plate (31) and construction hanging flower basket (1), the bottom butt of attaching plate (32) and bridge (2), be provided with connecting piece (4) between fixed plate (31) and attaching plate (32), still be provided with lifting means (5) that are used for promoting the material on construction hanging flower basket (1).
2. The bridge floor construction platform of claim 1, wherein: connecting piece (4) are including spliced pole (41), the bottom and fixed plate (31) of spliced pole (41) are connected, spliced pole (41) cavity sets up, spliced pole (41) endotheca is equipped with butt column (42), the top and the rigging board (32) fixed connection of butt column (42), all be provided with slider (421) on a plurality of lateral walls of butt column (42), first spout (411) have all been seted up on a plurality of inside walls of spliced pole (41), slider (421) and first spout (411) sliding fit.
3. The bridge floor construction platform of claim 2, wherein: still be provided with pneumatic cylinder (413) in spliced pole (41), seted up mounting groove (412) in spliced pole (41), pneumatic cylinder (413) are fixed to be set up in mounting groove (412), the bottom fixed connection of the piston rod of pneumatic cylinder (413) and butt joint post (42).
4. The bridge floor construction platform of claim 1, wherein: the lifting assembly (5) comprises a hopper (51), a plurality of base angles of the hopper (51) are provided with lifting cables (52), a winch (53) is arranged on the construction hanging basket (1) in a rotating mode, one end, far away from the hopper (51), of each lifting cable (52) is wound on the winch (53), a driving motor (54) is fixedly arranged on one side of the winch (53), and an output shaft of the driving motor (54) is fixedly connected with a rotating shaft of the winch (53).
5. The bridge floor construction platform of claim 1, wherein: installation department (12) have been seted up to the one end of construction hanging flower basket (1), be provided with extension board (121) in installation department (12), second spout (122) all are seted up on the both sides of installation department (12) and lie in construction hanging flower basket (1), the both sides of extension board (121) respectively with two second spout (122) sliding fit.
6. The bridge floor construction platform of claim 5, wherein: the both sides of extension board (121) all are provided with connects rope (1211), connect rope (1211) and be close to the fixed couple (1212) that is provided with of one end of construction hanging flower basket (1), the both sides of the one end of construction hanging flower basket (1) all are provided with link (13), couple (1212) and link (13) clearance fit.
7. The bridge floor construction platform of claim 5, wherein: the upper surface of extension board (121) is provided with stopper (1213), spacing groove (123) have been seted up on the top of installation department (12) just is located construction hanging flower basket (1), stopper (1213) and spacing groove (123) sliding fit, be provided with push-and-pull rod (1214) on stopper (1213), push-and-pull rod (1214) pass spacing groove (123) and extend to the upper surface of construction hanging flower basket (1).
8. The bridge floor construction platform of claim 5, wherein: a plurality of sides of the construction hanging basket (1) are provided with handrails (14), and the handrails (14) close to one side of the extension plate (121) are arranged on the upper surface of the extension plate (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048285.XU CN213417588U (en) | 2020-09-17 | 2020-09-17 | Bridge bottom surface construction platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022048285.XU CN213417588U (en) | 2020-09-17 | 2020-09-17 | Bridge bottom surface construction platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213417588U true CN213417588U (en) | 2021-06-11 |
Family
ID=76262574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022048285.XU Expired - Fee Related CN213417588U (en) | 2020-09-17 | 2020-09-17 | Bridge bottom surface construction platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213417588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232976A (en) * | 2021-12-09 | 2022-03-25 | 中建三局集团有限公司 | Lifting multi-unit combined construction operation platform |
-
2020
- 2020-09-17 CN CN202022048285.XU patent/CN213417588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232976A (en) * | 2021-12-09 | 2022-03-25 | 中建三局集团有限公司 | Lifting multi-unit combined construction operation platform |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210611 |