CN213596814U - Movable three-dimensional crossing type multipurpose suspension bridge construction platform - Google Patents
Movable three-dimensional crossing type multipurpose suspension bridge construction platform Download PDFInfo
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- CN213596814U CN213596814U CN202021983044.8U CN202021983044U CN213596814U CN 213596814 U CN213596814 U CN 213596814U CN 202021983044 U CN202021983044 U CN 202021983044U CN 213596814 U CN213596814 U CN 213596814U
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Abstract
The utility model discloses a movable three-dimensional crossing type multipurpose suspension bridge construction platform, which provides a safe construction space convenient for operation under a catwalk through a zenith trolley, a connecting hanging bracket and a construction platform which are connected in sequence, the whole movable three-dimensional crossing type multipurpose suspension bridge construction platform is moved to a designated position by pulling the zenith trolley, the construction platform is temporarily limited and fixed through a fixed limiting device, constructors enter the construction platform through a safe crawling ladder to carry out construction operation, so that the maintenance work of lifting equipment such as normal lifting, reverse lifting and the like or other related equipment is safer and more convenient, meanwhile, the construction hanging basket can be more conveniently connected, when needing to transport components such as cable clamps, slings and the like and hanging cable tighteners and the like, the transportation components and the like can be directly connected with the zenith trolley, the transportation is mainly completed by the zenith trolley, the utility model discloses a construction on the catwalk provides convenience, is showing and is improving the efficiency of construction, has reduced construction safety risk.
Description
Technical Field
The utility model relates to a suspension bridge construction technical field. More specifically, the utility model relates to a portable three-dimensional leap-over formula multipurpose suspension bridge construction platform.
Background
The catwalk is a linear temporary construction sidewalk which is erected below a main cable and parallel to the main cable during construction of a suspension bridge, is an aerial work platform and a channel for construction workers to carry out construction work, is a key carrier for construction of a main cable system and even the whole upper structure of the suspension bridge, and has important tasks such as strand traction, strand adjustment, saddle shaping, cable tightening, cable clamp and sling installation, box girder hoisting, main cable wire wrapping, protective coating and the like, wherein the catwalk portal is arranged at intervals along the extension direction of the catwalk to support the installation of a bearing cable and related traction equipment, but part of the operation is difficult to be finished only by the catwalk, and a corresponding external hanging platform is required to be designed on the catwalk to carry out operation.
With the large-scale development of bridges, a new process provides new requirements for the working and protection range of a temporary construction platform, and under the existing experience and standards, when catwalk design is carried out, the vertical distance between a catwalk surface layer and the center of a main cable is not too large, and the height of handrail ropes on two sides is not too high, so that certain difficulty exists in operation at a certain height above and below the catwalk, and certain safety risk also exists. For example, when the conventional lifting operation is carried out by means of a forward lifting or backward lifting process of cable clamp construction, the lifting equipment is difficult to overhaul and troubleshoot under a catwalk, the operation has a large safety risk, and a working platform needs to exist at the lower part of the catwalk for a long time during operation. In addition, when the installation operation is carried out on a part of large cable clamps, the catwalk surface layer opening needs to penetrate to the lower part of the cable clamps, a lower working platform is not needed at the moment, and the installation operation is inconvenient and unsafe.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable three-dimensional leap-over formula multipurpose suspension bridge construction platform to solve among the prior art inconvenient, the big technical problem of safe risk of construction when the construction of catwalk upper and lower side.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a movable three-dimensional span-type multipurpose suspension bridge construction platform, comprising:
the traction system comprises a zenith trolley which is arranged on a pair of bearing cables above the catwalk and is in sliding connection with the bearing cables, and the zenith trolley is connected with the tower top winch through a traction rope;
the connecting hanger is positioned above the catwalk, and the upper end of the connecting hanger is fixed at the bottom of the zenith trolley;
the construction platform is positioned below the catwalk, a plurality of pairs of upright rods are symmetrically arranged upwards at two ends of the catwalk in the width direction, the space between each pair of upright rods is slightly wider than the width of the catwalk, and the upper ends of all the upright rods extend upwards respectively and are then detachably and fixedly connected with the bottom of the connecting hanger;
the upper end of the safety ladder stand is arranged on the upper end and the lower end of the handrail cable of the catwalk and is opposite to the inside of the construction platform;
and the fixed limiting device is arranged between the catwalk and the construction platform and is used for fixedly connecting the construction platform and the catwalk.
Preferably, the construction platform comprises a bottom plate which is horizontally arranged, the lower ends of each pair of vertical rods are respectively fixed at two ends of the bottom plate in the width direction of the catwalk, and a circle of fence is fixedly arranged on the edge of the bottom plate upwards.
Preferably, the connection gallows includes four jibs that are the rectangular distribution, and every jib is respectively the setting of just inclining downwards and outwards, connects between every two adjacent jibs and is provided with a horizontal pole.
Preferably, the pole setting is in the width direction's of catwalk both ends symmetry is provided with two pairs, and every pole setting is vertical to be set up and the upper end can be dismantled fixed connection and fix in the bottom of a jib, lower extreme a vertex angle department of bottom plate, the round fence is including connecting the four sides fence that sets up between all adjacent two pole settings respectively.
Preferably, the bottom plate includes the edge a pair of fly leaf and a pair of fixed plate that the symmetry axis symmetry of catwalk set up, and a pair of fly leaf is located between a pair of fixed plate and is connected with the pivot between the fixed plate of homonymy respectively, and the lower extreme of all pole settings is fixed on the fixed plate, connects between a pair of fly leaf and is provided with first detachable connections spare, is located catwalk ascending two-sided fence all includes a pair of fixed part and a pair of movable part of setting between a pair of fixed part, and the length of fixed part is unanimous with the fixed plate and the lower extreme is fixed respectively on a pair of fixed plate, and the opposite one side of a pair of fixed part respectively with the pole setting fixed connection who corresponds the side, a pair of movable part respectively with a pair of.
Preferably, the first detachable connecting piece comprises base plates fixedly arranged on the pair of movable plates respectively, a pair of through holes are formed in the pair of base plates in a relatively opened mode, a screw rod penetrates through the pair of through holes, and nuts are respectively in threaded connection with two ends of the screw rod extending out of the pair of base plates.
Preferably, the second detachable connecting member is a chain lock.
Preferably, every the fly leaf includes along a plurality of little fly leaves that the extending direction of catwalk arranged the setting in proper order, every little fly leaf rotates with the fixed plate that corresponds the side respectively and is connected, every is to being located all connect between the little fly leaf on the same width direction of catwalk and be provided with one first detachable connecting piece.
Preferably, the fixed limiting device comprises a steel wire rope, a plurality of rope clamps are arranged on the steel wire rope, and the steel wire rope is wound between the construction platform and the catwalk and then is fixedly connected through the rope clamps.
The utility model discloses at least, include following beneficial effect: the movable three-dimensional crossing type multipurpose suspension bridge construction platform of the utility model is provided with the zenith trolley, the connecting hanging bracket and the construction platform which are connected in sequence from top to bottom, the structure of the upper zenith trolley and the lower construction platform is integrally formed, not only a safety barrier is provided for the construction operation above a catwalk, but also a safe working platform is provided for the construction operation below the catwalk, the whole movable three-dimensional crossing type multipurpose suspension bridge construction platform is moved to a designated position by pulling the zenith trolley, the construction platform is temporarily limited and fixed by utilizing the fixed limiting device, constructors enter the construction platform through the safety ladder stand to carry out construction operation, so that the maintenance work of lifting equipment such as normal lifting, reverse lifting and the like or other related equipment is safer and more convenient, meanwhile, the construction hanging basket can be more conveniently connected, and the construction efficiency is obviously improved, when only need carry on work such as transporting cable clamp, hoist cable and hang tight cable machine, can be connected transporting component etc. and zenith dolly, mainly accomplish the transportation by the zenith dolly independently, set up the structure of dismantling the connection in addition on construction platform for whole portable three-dimensional leap type multipurpose suspension bridge construction platform can stride across the hoist cable smoothly.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a side view of the structure of the present invention;
FIG. 3 is a front view of an embodiment of the present invention as it passes through a sling;
fig. 4 is a schematic structural diagram of a first detachable connecting member according to an embodiment of the present invention.
The specification reference numbers indicate: 1. catwalk, 2, bearing rope, 3, zenith dolly, 4, haulage rope, 5, connect the gallows, 6, construction platform, 7, pole setting, 8, safe cat ladder, 9, fixed stop device, 10, bottom plate, 11, fence, 12, jib, 13, horizontal pole, 14, fly leaf, 15, fixed plate, 16, first detachable connector, 17, fixed part, 18, movable part, 19, second detachable connector, 20, backing plate, 21, screw rod, 22, nut, 23, little fly leaf, 24, hoist cable.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a portable three-dimensional leap-over type multipurpose suspension bridge construction platform, include:
the traction system comprises a zenith trolley 3 which is arranged on a pair of bearing cables 2 above the catwalk 1 and is in sliding connection with the bearing cables 2, and the zenith trolley 3 is connected with a tower top winch through a traction rope 4;
the connecting hanger 5 is positioned above the catwalk 1, and the upper end of the connecting hanger is fixed at the bottom of the zenith trolley 3;
the construction platform 6 is positioned below the catwalk 1, a plurality of pairs of upright rods 7 are symmetrically arranged at two ends of the catwalk 1 in the width direction upwards, the space between each pair of upright rods 7 is slightly wider than the width of the catwalk 1, and the upper ends of all the upright rods 7 are respectively extended upwards and then detachably and fixedly connected with the bottom of the connecting hanger 5;
the upper end of the safety ladder 8 is arranged on the upper end and the lower end of the handrail cable of the catwalk 1 and is opposite to the inside of the construction platform 6;
and the fixed limiting device 9 is arranged between the catwalk 1 and the construction platform 6 and is used for fixedly connecting the construction platform 6 with the catwalk 1.
When the maintenance work and the connection construction hanging flower basket of handle equipment such as needs just promote, lift up or other relevant equipment, install in bearing cable below the utility model discloses a portable three-dimensional leap-over formula multipurpose suspension bridge construction platform:
(1) the method comprises the steps of sequentially lifting and installing a zenith trolley, a connecting hanger and a construction platform which are respectively assembled at the bottom of a tower by a tower top crane, firstly installing the zenith trolley on a pair of bearing cables, connecting the zenith trolley with a tower top winch through a traction rope, retracting and releasing the traction rope through tower top traction equipment such as the tower top winch to drive the zenith trolley to move along the bearing cables, generally arranging a group of sliding wheels at two ends of a horizontally arranged rectangular frame respectively and downwards, arranging each group of sliding wheels on one bearing cable at the corresponding side, facilitating the connection with the traction rope through the rectangular frame, then sequentially installing the connecting hanger below the zenith trolley, installing the construction platform below the connecting hanger and a catwalk, enabling the width of the construction platform to exceed two sides of the catwalk by about 50cm so as to facilitate the upward extension of upright posts, and enabling the size of the construction platform in the longitudinal bridge direction to be 3m, according to the construction operation needs shortening or lengthening, the distance between the bottom of the construction platform and the bottom of the catwalk can be as 1.8m as long as a person with the normal height is not hindered to stand, and the upper end of the connecting hanger frame is fixedly connected with the lower end of the zenith trolley and the upper end of the construction platform through bolts.
(2) Pull the zenith dolly through the top of the tower hoist engine, remove construction platform to the assigned position after, utilize fixed stop device to be connected construction platform and catwalk fixed to towards construction platform internally mounted safety cat ladder on the handrail cable of catwalk, constructor carries out relevant construction operation by the safety cat ladder after getting into construction platform downwards from the catwalk, also can directly be on the net upper and lower personnel of opening of face in the cable clip position.
The utility model discloses a portable three-dimensional striding type multipurpose suspension bridge construction platform, from last to connecting in proper order and having set up the zenith dolly, connect the gallows, the construction platform, not only provide a safety barrier for the construction operation above the catwalk, also provide a safe work platform for the construction operation below the catwalk, portable three-dimensional striding type multipurpose suspension bridge construction platform designs into the structure of upper layer zenith dolly + lower floor construction platform, when only needing to carry on components such as transportation cable clamp, hoist cable and hang cable tightener etc. work, can connect transportation components etc. and the zenith dolly, mainly accomplish the transportation under the traction of tower top hoist independently by the zenith dolly, or move whole portable three-dimensional striding type multipurpose suspension bridge construction platform to the assigned position through drawing the zenith dolly, and then fix the construction platform temporarily at the assigned position through fixed stop device, constructors enter the construction platform through the safety crawling ladder to carry out construction operation, so that the maintenance work of lifting beam equipment such as normal lifting and reverse lifting or other related equipment is safer and more convenient, and meanwhile, the construction hanging basket can be connected more conveniently, and the construction efficiency is obviously improved. When needing to carry out the opening operation at catwalk veil, this device also can regard as a safety protection platform.
In another technical solution, as shown in fig. 2 and 3, the construction platform 6 includes a bottom plate 10 horizontally disposed, the lower ends of each pair of vertical rods 7 are respectively fixed at two ends of the bottom plate 10 in the width direction of the catwalk 1, and a circle of fence 11 is upward fixed on the edge of the bottom plate 10. Constructors mainly move on the bottom plate, and safety protection capacity of the construction platform is improved by arranging a circle of fences on the bottom plate.
In another technical solution, as shown in fig. 1, 2, and 3, the connecting hanger 5 includes four hanger rods 12 distributed in a rectangular shape, each hanger rod 12 is respectively arranged to incline downwards and outwards, and a cross bar 13 is connected between every two adjacent hanger rods 12.
Four jibs through being the rectangle distribution are connected with the pole setting in four positions of construction platform respectively, and the jib leans out downwards to set up convenient and the great construction platform of size is connected on the horizontal direction, and the rethread sets up the joint strength and the stability that the gallows is strengthened connecting to the horizontal pole.
In another technical solution, as shown in fig. 1, 2, and 3, two pairs of vertical rods 7 are symmetrically disposed at two ends of the catwalk 1 in the width direction, each vertical rod 7 is vertically disposed, the upper end of each vertical rod 7 is detachably and fixedly connected to the bottom of a suspension rod 12, the lower end of each vertical rod is fixed at a vertex angle of the bottom plate 10, and the circle of fence 11 includes four fences 11 respectively connected and disposed between all two adjacent vertical rods 7.
Set up pole setting quantity and jib and correspond, the upper end of every pole setting can be dismantled with a jib that corresponds the position and be connected can, it tears efficiency open to improve ann, the bottom plate generally sets up to the rectangular plate, four pole settings also are the rectangle and distribute, four sides fence encloses into three-dimensional construction space with four pole settings on the bottom plate, the four sides fence can be established as required to be fixed completely on the four sides or wherein several faces are fixed completely, two pole settings at one side fence and both ends of fixing completely carry out rigid connection or welding, reinforcing construction platform's support intensity, the fixed flexibility that then improves construction platform ann and tear open of partial face fence.
In another solution, as shown in figure 1, fig. 3 shows, bottom plate 10 includes the edge a pair of fly leaf 14 and a pair of fixed plate 15 that catwalk 1's symmetry axis symmetry set up, a pair of fly leaf 14 is located between a pair of fixed plate 15 and is connected with the pivot between the fixed plate 15 of homonymy respectively, and the lower extreme of all pole settings 7 is fixed on fixed plate 15, connects between a pair of fly leaf 14 to be provided with first detachable connector 16, is located catwalk 1 ascending two-sided fence 11 all includes a pair of fixed part 17 and sets up a pair of movable part 18 between a pair of fixed part 17, and the length of fixed part 17 is unanimous with fixed plate 15 and the lower extreme is fixed respectively on a pair of fixed plate 15, and the opposite one side of a pair of fixed part 17 respectively with the pole setting 7 fixed connection of corresponding side, a pair of movable part 18 respectively with a pair of fixed part 17 between the pivot.
As shown in fig. 3, when the sling 24 needs to be spanned, the first detachable connecting piece and the second detachable connecting piece on the construction platform are removed, the pair of movable parts of the two fences are rotated, the pair of movable plates are turned upwards and outwards, a channel through which the sling passes is reserved at the central position of the construction platform, then the tower top winch is started to pull the zenith trolley, the construction platform moves towards the sling until the spanning is completed, then the pair of movable parts and the pair of movable plates on the two fences are closed, the first detachable connecting piece and the second detachable connecting piece are reinstalled, and then the construction platform is moved to a specified position to perform construction operation at the next stage. So, when meetting main push-towing rope and hoist cable system, through set up the fly leaf on the bottom plate, set up the movable part on the fence for the main push-towing rope and hoist cable system free movement can be strideed across to the extending direction of catwalk to construction platform, and it is more nimble to remove, need not frequently ann tear the adjustment position when meetting the hoist cable, has further improved the efficiency of construction.
In another technical solution, as shown in fig. 4, the first detachable connecting member 16 includes a pair of base plates 20 respectively fixed on the pair of movable plates 14, a pair of through holes are oppositely formed on the pair of base plates 20, a screw 21 passes through the pair of through holes, and a nut 22 is respectively screwed on two ends of the screw 21 extending out of the pair of base plates 20.
When the pair of movable plates are connected and locked, the pair of movable plates are closed by screwing nuts at two ends of the screw rod, and when the first detachable connecting piece is opened, the nuts are unscrewed, and the screw rod is pulled out from the pair of through holes.
In another embodiment, as shown in fig. 1, the second detachable connecting element 19 is a chain lock.
When a pair of movable parts of the two-sided fence needs to be locked respectively, a chain lock is wound on the pair of movable parts and then the movable parts are locked, so that the fence is convenient and quick.
In another technical solution, as shown in fig. 1 and fig. 2, each movable plate 14 includes a plurality of small movable plates 23 sequentially arranged along the extending direction of the catwalk 1, each small movable plate 23 is rotatably connected to the corresponding fixed plate 15, and each pair of small movable plates 23 located in the same width direction of the catwalk 1 is provided with one first detachable connecting member 16.
In order to conveniently control the turning movement of the movable plates and further improve the turning safety, the movable plates are designed into a plurality of small movable plates in a segmented mode, if the movable plates can be divided into 6 sections in the extending direction of a longitudinal bridge, namely a catwalk, each section is 50cm, the total length of a bottom plate of the construction platform is 3m, a central line is used as an axis, the part, close to the central line, of each section on the bottom plate is used as the movable plate, a first detachable connecting piece is arranged on each small movable plate in the width direction of a transverse bridge, namely the catwalk, the first detachable connecting pieces are sequentially detached when a sling is crossed, and each small movable plate is sequentially turned upwards.
In another technical scheme, as shown in fig. 1 and 3, the fixing and limiting device 9 includes a steel wire rope, a plurality of rope clips are arranged on the steel wire rope, and the steel wire rope is wound between the construction platform 6 and the catwalk 1 and then is connected and fixed through the rope clips.
Adopt the wire rope that has the rope clip as the stop device with construction platform fixed connection on the catwalk, simple structure, ann tears efficiently open, and light in weight, easily accomodate, do not account for the space, when carrying out interim spacing fixed to construction platform, can twine wire rope between the handrail cable of both sides and connection gallows and/or construction platform on the catwalk.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for the invention, and further modifications may be readily implemented by those skilled in the art, so that the invention is not limited to the specific details and figures 1, 2, 3, 4 shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (9)
1. Portable three-dimensional strideing formula multipurpose suspension bridge construction platform, its characterized in that includes:
the traction system comprises a zenith trolley which is arranged on a pair of bearing cables above the catwalk and is in sliding connection with the bearing cables, and the zenith trolley is connected with the tower top winch through a traction rope;
the connecting hanger is positioned above the catwalk, and the upper end of the connecting hanger is fixed at the bottom of the zenith trolley;
the construction platform is positioned below the catwalk, a plurality of pairs of upright rods are symmetrically arranged upwards at two ends of the catwalk in the width direction, the space between each pair of upright rods is slightly wider than the width of the catwalk, and the upper ends of all the upright rods extend upwards respectively and are then detachably and fixedly connected with the bottom of the connecting hanger;
the upper end of the safety ladder stand is arranged on the upper end and the lower end of the handrail cable of the catwalk and is opposite to the inside of the construction platform;
and the fixed limiting device is arranged between the catwalk and the construction platform and is used for fixedly connecting the construction platform and the catwalk.
2. The movable three-dimensional crossing type multipurpose suspension bridge construction platform as claimed in claim 1, wherein the construction platform comprises a horizontally arranged bottom plate, the lower ends of each pair of vertical rods are respectively fixed at two ends of the bottom plate in the width direction of the catwalk, and a circle of fence is fixedly arranged on the edge of the bottom plate upwards.
3. The movable three-dimensional crossing type multipurpose suspension bridge construction platform according to claim 2, wherein the connecting hanger comprises four hanging rods distributed in a rectangular shape, each hanging rod is respectively arranged in a downward and outward inclined manner, and a cross rod is connected between every two adjacent hanging rods.
4. The movable three-dimensional crossing type multipurpose suspension bridge construction platform according to claim 3, wherein two pairs of the vertical rods are symmetrically arranged at two ends of the catwalk in the width direction, each vertical rod is vertically arranged, the upper end of each vertical rod is detachably and fixedly connected to the bottom of a suspension rod, the lower end of each vertical rod is fixed at a top corner of the bottom plate, and the circle of fences comprises four-side fences respectively connected and arranged between every two adjacent vertical rods.
5. The movable spanned multipurpose suspension bridge construction platform of claim 4, the bottom plate includes the edge a pair of fly leaf and a pair of fixed plate that the symmetry axis symmetry of catwalk set up, a pair of fly leaf is located between a pair of fixed plate and is connected with the pivot between the fixed plate of homonymy respectively, and the lower extreme of all pole settings is fixed on the fixed plate, connects between a pair of fly leaf to be provided with first detachable connecting piece, is located catwalk extending direction's two-sided fence all includes a pair of fixed part and sets up a pair of movable part between a pair of fixed part, and the length of fixed part is unanimous with the fixed plate and the lower extreme is fixed respectively on a pair of fixed plate, and one side that a pair of fixed part is opposite respectively with the pole setting fixed connection who corresponds the side, a pair of movable part respectively.
6. The movable three-dimensional crossing type multipurpose suspension bridge construction platform according to claim 5, wherein the first detachable connecting member comprises a pair of base plates fixedly arranged on the pair of movable plates respectively, a pair of through holes are formed in the pair of base plates in an opposite way, a screw rod is inserted into the pair of through holes, and nuts are respectively connected to two ends of the screw rod extending out of the pair of base plates in a threaded manner.
7. The mobile spanned multi-purpose suspension bridge construction platform of claim 5 wherein the second detachable link is a chain lock.
8. The movable stereoscopic crossing type multipurpose suspension bridge construction platform as claimed in claim 5, wherein each of the movable plates comprises a plurality of small movable plates sequentially arranged along the extending direction of the catwalk, each of the small movable plates is rotatably connected with the corresponding side of the fixed plate, and one first detachable connecting member is connected between each pair of small movable plates located in the same width direction of the catwalk.
9. The movable three-dimensional crossing type multipurpose suspension bridge construction platform according to claim 1, wherein the fixed limiting device comprises a steel wire rope, a plurality of rope clamps are arranged on the steel wire rope, and the steel wire rope is wound between the construction platform and the catwalk and then is fixedly connected through the rope clamps.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021983044.8U CN213596814U (en) | 2020-09-11 | 2020-09-11 | Movable three-dimensional crossing type multipurpose suspension bridge construction platform |
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| CN202021983044.8U CN213596814U (en) | 2020-09-11 | 2020-09-11 | Movable three-dimensional crossing type multipurpose suspension bridge construction platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293759A (en) * | 2021-12-28 | 2022-04-08 | 中国建筑第八工程局有限公司 | Civil engineering bearing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293759A (en) * | 2021-12-28 | 2022-04-08 | 中国建筑第八工程局有限公司 | Civil engineering bearing equipment |
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