High-speed rail box girder retaining wall lifting platform car

Abstract

The utility model provides a high-speed rail box girder retaining wall lifting platform truck which comprises a walking chassis and a lifting platform mechanism assembled on the walking chassis, and the lifting platform mechanism can be arranged and connected to one side of a box girder. The lifting platform mechanism comprises a frame body, a lifting driving mechanism and a lifting table. The driving end of the lifting driving mechanism is in transmission connection with the lifting table and used for driving the lifting table to ascend to correspond to and be connected with the top face of the box girder or descend to be close to and be connected with the ground. The lifting platform mechanism is driven by the walking chassis to advance, so that the lifting platform mechanism can be conveniently arranged and connected on one side of the box girder, and a conveying platform which is built between the ground and the top surface of the box girder is used for conveying construction equipment and construction materials without using expensive cranes and pump trucks to assist in material distribution; and the turnover workload of construction materials such as material equipment is reduced, the labor intensity of workers and the construction cost are also greatly reduced, and the overall construction efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -speed railway box girder construction technical field especially relates to a high -speed railway box girder retaining wall construction auxiliary device. BACKGROUND

[0002] The high-speed railway three walls arranged at the top of the high-speed railway box girder serve as important components of the box girder in high-speed railway construction and play an important role in the safety of high-speed train operation. The high-speed railway three walls mainly include an A wall, a B wall (also referred to as a vertical wall) and a protective wall (also referred to as a ballast retaining wall). At present, the three walls at the top of the high-speed railway box girder are mostly cast in situ, that is, the concrete is poured after the steel formwork is supported, the formwork is removed and transferred for reinstallation of the support. The number of steel formworks and the number of times of turnover of the steel formworks are relatively large. The time period for on-site removal and transfer of the support is long. The number of workers for manual installation and transfer of the formwork is large. The labor intensity is great. Before the construction of the high-speed railway three walls is completed, the box girders are orderly placed in the construction site. The steel formwork and the construction equipment need to be transported between different box girders. The height of the top surface of the box girder from the ground is relatively high. The transportation is very inconvenient. The equipment used for the construction of the three walls includes a concrete tank truck (used for providing concrete), a handling equipment (used for handling the steel formwork on the top surface of the box girder or the ground) and a crane (used for lifting the box girder on the handling equipment, the steel formwork and the like, and pouring and distributing materials through the hopper of the crane). The pump truck can be used in cooperation with the concrete tank truck for pouring. However, the use cost of the pump truck is too high. The pump truck is more suitable for large-area pouring. It is not conducive to pouring and construction in the narrow and long three-wall cavity. The use of the pump truck for the construction of the three walls is not only high in cost but also relatively low in efficiency. The mode of pouring and distributing materials through the crane with the hopper occupies the crane for a long time. A plurality of people need to cooperate to accurately pour and distribute materials when the crane with the hopper is used for construction. The efficiency is low and the safety is poor.

[0003] Therefore, how to provide a high-speed railway box girder retaining wall lifting platform vehicle capable of improving the construction efficiency of the high-speed railway box girder retaining wall, reducing the labor intensity and construction cost and facilitating the turnover of equipment and molds is a problem to be solved by those skilled in the art. SUMMARY

[0004] In view of the above technical problems, the utility model provides a high-speed railway box girder retaining wall lifting platform vehicle for solving the technical problem of large workload and inflexibility of the turnover of equipment and molds in the construction of the high-speed railway box girder retaining wall in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0006] The high-speed rail box girder retaining wall lifting platform vehicle comprises a walking chassis and a lifting platform mechanism arranged on the walking chassis, the lifting platform mechanism is arranged on one side of the box girder and used for conveying construction materials, equipment and / or personnel between the ground and the top surface of the box girder, the lifting platform mechanism comprises a frame body, a lifting driving mechanism arranged on the frame body and a lifting platform vertically and slidingly connected to the frame body, and the driving end of the lifting driving mechanism is in transmission connection with the lifting platform and used for driving the lifting platform to ascend to correspond to and connect to the top surface of the box girder or descend to approach and connect to the ground.

[0007] The lifting platform mechanism is driven by the walking chassis to move, so that the lifting platform mechanism can be arranged on one side of the box girder to form a construction lifting conveying channel for conveying construction materials and equipment to and from the box girder; construction personnel can also go up and down the box girder through the lifting platform mechanism, and the safety of the construction personnel going up and down the box girder is reliably ensured; the material placing and pouring vehicle, the carrying equipment, the formwork for retaining wall construction, the construction tools and the necessary materials for construction can all go up and down the box girder through the lifting platform mechanism without the assistance of a crane, thereby reducing the turnover of construction materials and equipment and improving the flexibility and efficiency of construction and reducing the construction cost.

[0008] Further, the frame body comprises at least two columns arranged in a rectangular array, a bottom cross beam fixedly connected to the bottom of the columns, a top cross beam fixedly connected to the top of the columns and a middle cross beam fixedly connected to the middle of the columns; the columns, the bottom cross beam, the top cross beam and the middle cross beam jointly form a cubic frame, and the inside of the frame body is a lifting channel; a sliding groove is formed in each column along the height direction, and the lifting platform is fixed with a sliding block matched with the sliding groove at the position corresponding to the sliding groove.

[0009] Further, in order to realize the lifting of the lifting platform, the lifting driving mechanism comprises a hydraulic cylinder, a transmission wheel and a transmission chain; the fixed end of the hydraulic cylinder is connected with the frame body, and the telescopic end is rotatably installed with the transmission wheel; the transmission wheel is slidingly connected to the column through a sliding support; one end of the transmission chain is fixed to the corresponding column, and the other end passes through the corresponding transmission wheel and is fixedly connected with the corresponding sliding block.

[0010] Further, the transmission wheel is a sprocket, and the transmission chain is a chain matched with the sprocket; or the transmission wheel is a pulley, and the transmission chain is a steel wire rope matched with the pulley.

[0011] Further, in order to improve the stability of the transmission wheel, the two opposite transmission wheels are connected through a connecting shaft.

[0012] Further, the lower side of the frame body is provided with a first channel opening for lifting the lifting platform, and the side of the frame body is provided with a second channel opening above the top surface of the box girder for lifting the box girder.

[0013] The beneficial effects of the above technical solution are: in use, the lifting platform is lowered to the lower part of the frame body and corresponds to the passage opening one, the construction equipment or construction materials enter the upper end of the lifting platform from the passage opening one, the lifting platform carries the construction equipment or construction materials to the top surface of the box girder, and the construction equipment or construction materials are transferred to the top surface of the box girder from the passage opening two.

[0014] Further, the side opposite to the passage opening two of the frame body is provided with a passage opening three corresponding to the passage opening two; when the height of the lifting platform corresponds to the height of the top surface of the box girder, the passage opening two, the space above the lifting platform and the passage opening three jointly build a through beam passage that can be built between the opposite ends of the adjacent two box girders.

[0015] The beneficial effects of the above technical solution are: the arrangement of the box girders in the box girder site is orderly, the adjacent two groups of box girders are placed opposite along the length direction, each group of box girders is placed side by side along the width direction, and a passage is designed between the adjacent two groups of box girders; in use, the lifting platform vehicle is moved to the passage between the adjacent two groups of box girders and is close to the butt joint end of the box girder, the passage opening two is butt jointed to one end of the length direction of one box girder, and the passage opening three is butt jointed to the other end of the length direction of the opposite box girder, so as to build a through beam passage above the passage between the adjacent two box girders, and the construction equipment and construction materials can be directly transferred from the top surface of one box girder to the top surface of the other box girder through the through beam passage, which greatly improves the construction efficiency and reduces the labor intensity and construction cost.

[0016] Further, in order to make the frame body liftable, the frame body is detachably connected to the top end of the walking chassis, and the bottom of the frame body is provided with a lifting leg two.

[0017] Further, the fixed end of the lifting leg two is fixedly installed at the bottom of the frame body, and the telescopic end thereof can be downwardly extended to abut against the ground and jack up the frame body, so as to separate the frame body from the walking chassis; the telescopic end of the lifting leg two can be upwardly retracted to place the frame body on the ground or support the frame body on the ground.

[0018] The beneficial effects of the above technical solution are: the lifting leg two is used as the telescopic leg of the frame body, the frame body can be separated from the walking chassis, the walking chassis can be moved away from below the frame body after the frame body is separated from the walking chassis; when the ground is flat, the telescopic end of the lifting leg two can be upwardly retracted to directly place the frame body on the ground; when the ground is uneven, the frame body can be supported on the ground by the lifting leg two (if necessary, a supporting pad block can be arranged at the bottom end of the frame body) to maintain the vertical state of the frame body, so as to ensure the stability of the lifting operation.

[0019] Further, the lifting platform mechanisms are multiple, and the multiple lifting platform mechanisms are arranged between two adjacent box girders and sequentially arranged in opposite directions of the two adjacent box girders; the beam passing channels of the multiple lifting platform mechanisms are sequentially connected to build a beam passing bridge path between the two adjacent box girders.

[0020] The beneficial effects of the above technical solution are that when the channel between two adjacent box girders is wide, the beam passing bridge path can be built by sequentially connecting the beam passing channels of multiple lifting platform mechanisms, and the rapid transfer of construction equipment and materials between two adjacent box girders is realized.

[0021] The beneficial effects of the present utility model are:

[0022] 1. The lifting platform vehicle builds the construction lifting conveying channel of the upper and lower box girders, greatly improves the flexibility and rapidity of the construction personnel, materials and equipment in the upper and lower box girders, reduces the turnover work amount of the construction materials such as formwork, greatly reduces the labor intensity and construction cost, and significantly improves the overall construction efficiency.

[0023] 2. The lifting driving mechanism is used for driving the lifting table to lift, the lifting table can be connected to the top surface of the box girder when ascending and can be connected to the ground when descending, so that the lifting table becomes a conveying platform built between the ground and the top surface of the box girder, is used for conveying construction equipment and construction materials, does not need to use the crane and pump truck to assist in material distribution, and the construction lifting conveying channel improves the flexibility and rapidity of the construction materials and equipment in the upper and lower box girders.

[0024] 3. The lifting platform vehicle can also build a beam passing bridge path between adjacent box girders, and the construction materials, equipment and personnel do not need to repeatedly go up and down the box girders, but can directly pass through the beam passing bridge path to realize rapid turnover, improve the construction efficiency, and further reduce the construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0026] Figure 1 The use schematic diagram of the present utility model;

[0027] Figure 2 The structural schematic diagram of the present utility model.

[0028] In the diagram: 1. Lifting platform vehicle; 11. Walking chassis; 12. Lifting platform mechanism; 121. Frame body; 1211. Passageway 1; 1211A. Tilting connecting plate 1; 1212. Passageway 2; 1212A. Tilting connecting plate 2; 1213. Passageway 3; 1213A. Tilting connecting plate 3; 1214. Beam passageway; 1215. Column; 1215A. Slideway; 1216. Bottom crossbeam; 1217. Top crossbeam; 1218. Middle crossbeam; 1219. Mounting plate; 122. Lifting platform; 1221. Sliding block; 123. Lifting drive mechanism; 1231. Hydraulic cylinder; 1232. Transmission wheel; 1233. Transmission chain; 1234. Connecting shaft; 1235. Sliding bracket; 124. Lifting outrigger 2; 2. Concrete placing and pouring vehicle; 3. Handling equipment; 4. Box girder. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1 As shown in Embodiment 1 of this utility model, a high-speed railway box girder retaining wall lifting platform vehicle is provided. The lifting platform vehicle 1 includes a traveling chassis 11 and a lifting platform mechanism 12 mounted on the traveling chassis 11. The lifting platform mechanism 12 can be arranged and connected to one side of the box girder 4 to construct a construction lifting and conveying channel for the upper and lower box girders, and is used to transport construction materials, construction equipment and construction personnel between the ground and the top surface of the box girder 4.

[0031] When in use, the lifting platform vehicle is driven by the chassis 11 to move the lifting platform mechanism 12. This allows the lifting platform mechanism 12 to be easily connected to one side of the box girder 4, creating a construction lifting and conveying channel for materials and equipment to and from the box girder. Construction personnel can also use the lifting platform mechanism 12 to move up and down the box girder, ensuring their safety. The concrete placing truck 2 used for concrete transport and pouring, the material handling equipment 3 used for transporting construction materials, and essential construction materials such as formwork, tools, and supplies for retaining wall construction can all be moved up and down the box girder via the lifting platform mechanism 12 without the need for a crane. This improves construction flexibility, increases efficiency, and reduces costs.

[0032] Specifically, the chassis 11 can be a self-powered, self-propelled wheeled or tracked chassis, or a non-powered chassis that is towed by other power equipment.

[0033] In some embodiments, such asFigure 2 As shown, the lifting platform mechanism 12 includes a frame 121, a lifting platform 122, and a lifting drive mechanism 123.

[0034] like Figure 2 As shown, the lifting platform 122 is arranged horizontally and slidably connected to the frame 121 along the height direction of the frame 121; the lifting drive mechanism 123 is installed on the frame 121, and its drive end is connected to the lifting platform 122, which can drive the lifting platform 122 to rise to correspond to and connect with the top surface of the box girder 4, and to fall to approach and connect with the ground.

[0035] The lifting drive mechanism 123 is used to drive the lifting platform 122 to rise and fall. When the lifting platform 122 rises, it can connect to the top surface of the box girder 4, and when it falls, it can connect to the ground. Thus, the lifting platform 122 becomes a conveying platform built between the ground and the top surface of the box girder 4, used to transport construction equipment and construction materials.

[0036] In some embodiments, such as Figure 2 As shown, the lifting platform 122 is located inside the frame body 121; the lower side of the frame body 121 is provided with a passage opening 1211 for the upper and lower lifting platform 122; the side of the frame body 121 is provided with a passage opening 1212 corresponding to the top surface of the box girder 4 for the upper and lower box girder 4.

[0037] When in use, the lifting platform 122 descends to the lower part of the frame 121 and corresponds to the first passageway 1211. Construction equipment or construction materials enter the upper part of the lifting platform 122 through the first passageway 1211. The lifting platform 122 carries the construction equipment or construction materials up to the top surface of the corresponding box girder 4. The construction equipment or construction materials are then transferred to the top surface of the box girder 4 through the second passageway 1212.

[0038] Specifically, such as Figure 2 As shown, the frame 121 is a cuboid shape, including four uprights 1215 arranged in a rectangular array, a bottom crossbeam 1216 fixedly connected to the bottom of the four uprights, a top crossbeam 1217 fixedly connected to the top of the four uprights, and a middle crossbeam 1218 fixedly connected to the middle of the four uprights. The uprights 1215, bottom crossbeam 1216, top crossbeam 1217 and middle crossbeam 1218 together form a cubic frame, and the interior of the frame 121 is a lifting channel. The lifting platform 122 is horizontally located inside the frame 121. Each of the four uprights 1215 has a sliding groove 1215A along the height direction, and a slider 1221 that matches the sliding groove is fixed on the periphery of the lifting platform 122.

[0039] Example 2 differs from Example 1 in that, as Figure 2 As shown, the frame body 121 is detachably connected to the top of the walking chassis 11; the bottom of the frame body 121 is provided with lifting support legs 124.

[0040] Specifically, the fixed end of the second lifting leg 124 is fixedly installed at the bottom of the frame body 121, and the telescopic end thereof can be extended downward to abut against the ground and jacks up the frame body 121, so that the frame body 121 is separated from the walking chassis 11 upward and downward; the telescopic end of the second lifting leg 124 can be retracted upward to place the frame body 121 on the ground or support the frame body 121 on the ground.

[0041] The second lifting leg 124 is a telescopic leg of the frame body 121, which can separate the frame body 121 from the walking chassis 11, and after the frame body 121 is separated from the walking chassis 11, the walking chassis 11 can be moved away from below the frame body 121; when the ground is flat, the telescopic end of the second lifting leg 124 can be retracted upward to place the frame body 121 directly on the ground; when the ground is uneven, the frame body 121 can be supported on the ground by the second lifting leg 124, and if necessary, support pads can be provided at the bottom end of the frame body to maintain the vertical state thereof, so as to ensure the stability of the lifting operation.

[0042] Specifically, as shown in Figure 2 The frame body 121 further includes a mounting plate 1219 fixed at the bottom end of the upright column 1215 and the bottom cross beam 1216; the mounting plate 1219 is detachably connected to the top end of the walking chassis 11 by bolts; the fixed end of the second lifting leg 124 is fixedly installed at the upper end of the mounting plate 1219, and the telescopic end thereof can be moved downward to extend through the mounting plate 1219 to the lower side thereof to abut against the ground and jack up the frame body 121, so that the mounting plate 1219 of the frame body 121 is separated from the walking chassis 11 upward and downward; the telescopic end of the second lifting leg 124 can be retracted upward to place the mounting plate 1219 of the frame body 121 on the ground or support the frame body 121 on the ground.

[0043] Specifically, the second lifting leg 124 is two groups, and each group of the second lifting leg 124 includes a plurality of second lifting legs 124; the two groups of second lifting legs 124 are symmetrically arranged on both sides of the mounting plate 1219 in the width direction thereof; and each group of second lifting legs 124 is arranged at intervals along the length direction of the mounting plate 1219. The vertical state of the frame body 121 can be adjusted by adjusting the telescopic amount of the second lifting leg 124.

[0044] Specifically, the mounting plate 1219 is rectangular, and the second lifting leg 124 is four, and the four second lifting legs 124 are respectively installed at the four corner ends of the mounting plate 1219.

[0045] Embodiment 3, which is different from Embodiment 2, is as follows: Figure 2As shown, the lifting driving mechanism 123 is four groups, each including a hydraulic cylinder 1231, a transmission wheel 1232 and a transmission chain 1233; the four hydraulic cylinders 1231 are fixed in pairs on the four vertical columns 1215 in parallel, the lower end is the fixed end and abuts on the upper end of the mounting plate 1219, and the upper end is the telescopic end; the telescopic end of the four hydraulic cylinders 1231 is rotatably installed with the transmission wheel 1232; the transmission wheel 1232 is slidably connected to the vertical column 1215 through the sliding support 1235, and the sliding support 1235 is slidably connected to the vertical column 1215 along the height direction of the vertical column 1215; one end of the four transmission chains 1233 is fixed on the outer circumferential wall of the four vertical columns 1215 in pairs, and the other end of the four transmission chains 1233 passes through the four transmission wheels 1232 in pairs and is fixedly connected with the corresponding sliding block 1221. When working, the telescopic end of the hydraulic cylinder 1231 drives the transmission wheel 1232 to lift, the transmission wheel 1232 drives the other end of the corresponding transmission chain 1233 to lift, and then drives the corresponding sliding block 1221 to lift, and the four sliding blocks 1221 synchronously lift to drive the lifting platform 122 to lift.

[0046] Specifically, the transmission wheel 1232 can be selected as a chain wheel, and the transmission chain 1233 is a chain adapted to the chain wheel; the transmission wheel 1232 can also be selected as a pulley, and the transmission chain 1233 is a steel wire rope adapted to the pulley. The two opposite transmission wheels 1232 are connected through the connecting shaft 1234.

[0047] In some embodiments, the side of the frame body 121 opposite to the passage opening two 1212 is provided with a passage opening three 1213 corresponding to the passage opening two 1212; when the height of the lifting platform 122 corresponds to the height of the top surface of the box girder 4, the passage opening two 1212, the space above the lifting platform 122 and the passage opening three 1213 jointly construct a beam passage 1214 that can be built between the opposite ends of the adjacent two box girders 4.

[0048] Embodiment 4, which is different from embodiment 2, as shown in Figure 2 As shown, the top of the frame body 121 can be installed with a top cover to prevent rain and sun, and the peripheral side can be installed with a protective net or a protective fence.

[0049] Embodiment 5, which is different from embodiment 3, as shown in Figure 2 As shown, the frame body 121 is hingedly connected with a turnover connecting plate one 1211A at the bottom corresponding to the passage opening one 1211; the frame body 121 is hingedly connected with a turnover connecting plate two 1212A at the bottom corresponding to the passage opening two 1212; the frame body 121 is hingedly connected with a turnover connecting plate three 1213A at the bottom corresponding to the passage opening three 1213.

[0050] Specifically, one end of the first flip plate 1211A is hinged to the frame body 121, and the other end is reversibly abutted against the ground to form an inclined ramp connecting the ground and the lifting platform 122; one end of the second flip plate 1212A is hinged to the frame body 121, and the other end is reversibly erected on the top surface of the box girder to form a connecting passage plate between the top surface of the box girder and the lifting platform 122; one end of the third flip plate 1213A is hinged to the frame body 121, and the other end is reversibly erected on the top surface of the box girder to form a connecting passage plate between the top surface of the box girder and the lifting platform 122.

[0051] Specifically, when the second flip plate 1212A and the third flip plate 1213A are flipped to the horizontal state, the bottom ends of the second flip plate 1212A and the third flip plate 1213A are adapted to abut against the top surface of the middle cross beam 1218; the middle cross beam 1218 serves to support the corresponding second flip plate 1212A and the third flip plate 1213A.

[0052] The box girders in the box girder site are arranged in an orderly manner, and two adjacent groups of box girders are placed opposite to each other along the length direction, each group of box girders is placed side by side along the width direction, and a passage is designed between the two adjacent groups of box girders; when the lifting platform vehicle 1 of the utility model is used, it is moved to the passage between the two adjacent groups of box girders and close to the end part of the butt joint box girder, wherein the second passage opening 1212 butt joints one end of the length direction of the box girder, and the third passage opening 1213 butt joints the other end of the length direction of the opposite box girder, so as to erect a girder passage 1214 above the passage between the two adjacent box girders, and the construction equipment and construction materials can be directly transferred from the top surface of one box girder to the top surface of another box girder through the girder passage 1214, which greatly improves the construction efficiency, reduces the labor intensity and construction cost.

[0053] Example 6 differs from example 5 in that, as shown in Figure 2 The lifting platform mechanism 12 is multiple, and the multiple lifting platform mechanisms 12 are arranged between the two adjacent box girders 4 and sequentially arranged along the opposite direction of the two adjacent box girders 4; the girder passages 1214 of the multiple lifting platform mechanisms 12 are sequentially connected to build a girder passage between the two adjacent box girders 4.

[0054] When the passage between the two adjacent box girders is wide, the girder passage can be built by sequentially connecting the girder passages 1214 of the multiple lifting platform mechanisms 12, realizing the rapid transfer of construction equipment and materials between the two adjacent box girders.

[0055] Specifically, the second flip plate 1212A and the third flip plate 1213A between the two adjacent lifting platform mechanisms 12 are connected to form a connecting passage plate between the girder passages 1214, so as to realize the seamless connection of the girder passage and ensure the smooth passing of the equipment and materials.

[0056] The lifting platform mechanism 12 is used to build a construction lifting conveying channel on one side of the box girder 4, and is used in cooperation with the concrete placing and pouring vehicle 2 to transfer and pour the concrete and to pour the retaining wall, so that the construction mode of the traditional high-speed rail box girder retaining wall construction must use a crane and a pump vehicle is changed, the turnover of construction materials and construction equipment is more rapid, the construction safety is better, the construction efficiency can be greatly improved, and the construction cost is reduced.

[0057] In the embodiment 7, the difference from the embodiment 6 is that the specific arrangement process of the lifting platform vehicle 1 of the utility model is that the walking chassis 11 of the lifting platform vehicle 1 can be selected to walk by a power chassis to move the lifting platform mechanism 12 to one side in the length direction of the box girder 4, or is dragged by other power walking equipment; in order to save equipment and construction cost, the walking chassis 11 can be designed as a non-power chassis, and the walking chassis 11 of the lifting platform vehicle 1 can be dragged by the walking vehicle body 21 of the concrete placing and pouring vehicle 2 to walk; after the lifting platform mechanism 12 is moved to one side in the length direction of the box girder 4, the walking chassis 11 is removed, and the frame body 121 is placed on the ground; the turning-over connecting plate one 1211A is opened to build the inclined ramp of the upper and lower lifting platform 122; the turning-over connecting plate two 1212A is opened to be lapped on the top surface of the box girder 4, and the arrangement of the lifting platform mechanism 12 is completed.

[0058] The construction personnel can also go up and down the box girder 4 through the lifting platform mechanism 12; when the construction steel formwork is transferred, the pouring mechanism 22 is moved away from the vehicle plate 211 by the carrying equipment 3; the steel formwork is carried by the carrying equipment 3 or is loaded on the vehicle plate 211 of the concrete placing and pouring vehicle 2, the construction steel formwork is transferred to the top surface of the box girder 4 by the walking vehicle body 21 of the concrete placing and pouring vehicle 2, the function of the construction equipment is fully utilized, and the construction cost is reduced. When the construction pouring concrete is transferred, the pouring mechanism 22 is placed on the vehicle plate 211 by the carrying equipment 3, the walking vehicle body 21 drags the pouring mechanism 22 to the concrete supply equipment 5, the height of the material inlet 2221 of the hopper 222 is adjusted by the lifting leg one 224, the slurry outlet of the concrete supply equipment 5 is connected with the material inlet 2221 of the hopper 222, and the concrete is loaded.

[0059] After the construction is completed, the concrete placing and pouring vehicle 2, the carrying equipment 3 and the construction materials are transported from the top surface of the box girder 4 to the ground by the lifting platform mechanism 12.

[0060] In the embodiment 8, the difference from the embodiment 6 is that at least one lifting platform mechanism 12 is arranged between the adjacent two box girders 4 in the opposite direction of the adjacent two box girders 4, the overpass bridge path connecting the adjacent two box girders 4 is built by sequentially connecting the overpass channels 1214 of the at least one lifting platform mechanism 12, and the concrete placing and pouring vehicle 2, the carrying equipment 3 and the construction materials are transferred or transferred through the overpass bridge path.

[0061] The number of lifting platform mechanisms 12 can be arranged flexibly according to the width of the passage between two adjacent box girders 4, so as to quickly build a bridge passage connecting the two adjacent box girders 4 at the passage between the two adjacent box girders 4, and after the construction of one box girder retaining wall is completed, the construction equipment and construction materials can be quickly transferred and transported to the top surface of the adjacent box girder, which can significantly improve the construction efficiency and reduce the construction cost.

[0062] Specifically, two lifting platform mechanisms 12 are arranged in sequence along the length direction of the box girder 4 between two adjacent box girders 4; the turnover connecting plate two 1212A and the turnover connecting plate three 1213A of the two lifting platform mechanisms 12 are both turned over to be in a horizontal state, and the turnover connecting plate two 1212A of one lifting platform mechanism 12 is butted with the turnover connecting plate three 1213A of the other lifting platform mechanism 12; and the turnover connecting plate three 1213A of one lifting platform mechanism 12 and the turnover connecting plate two 1212A of the other lifting platform mechanism 12 are both leaned on the top surface of the corresponding box girder 4, so as to form a bridge passage.

[0063] Specifically, after the construction is completed, the removed formwork can be loaded on the car plate 211 of the walking vehicle body 21 by the carrying equipment 3 for transportation.

[0064] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any modification to the technical solutions described in the foregoing embodiments, or equivalent replacement of part or all of the technical features, without departing from the spirit and principles of the present application, and these modifications or replacements, do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A high iron box girder retaining wall lifting platform car, characterized in that: The lifting platform vehicle (1) comprises a walking chassis (11) and a lifting platform mechanism (12) assembled on the walking chassis (11), the lifting platform mechanism (12) can be arranged to connect on one side of a box girder (4) for conveying construction materials and / or equipment and / or personnel between the ground and the top surface of the box girder (4); the lifting platform mechanism (12) comprises a frame body (121), a lifting drive mechanism (123) arranged on the frame body (121), and a lifting platform (122) vertically and slidingly connected to the frame body (121), the driving end of the lifting drive mechanism (123) is drivingly connected to the lifting platform (122) for driving the lifting platform (122) to rise to correspond and connect to the top surface of the box girder (4) or to lower to close to and connect to the ground.

2. The high-speed rail box girder retaining wall lifting platform vehicle according to claim 1, characterized in that: The frame body (121) comprises at least two columns (1215) arranged in a rectangular array, a bottom cross beam (1216) fixedly connected to the bottom of the column (1215), a top cross beam (1217) fixedly connected to the top of the column (1215), and a middle cross beam (1218) fixedly connected to the middle of the column (1215); the column (1215), the bottom cross beam (1216), the top cross beam (1217) and the middle cross beam (1218) together form a cubic frame, and the inside of the frame body (121) is a lifting channel; the column (1215) is provided with a sliding groove (1215A) in the height direction, and the lifting platform (122) is fixed with a sliding block (1221) matched with the sliding groove (1215A) at the position corresponding to the sliding groove (1215A).

3. The high-speed rail box girder retaining wall lifting platform vehicle according to claim 2, characterized in that: The lifting drive mechanism (123) comprises a hydraulic cylinder (1231), a transmission wheel (1232) and a transmission chain (1233); the fixed end of the hydraulic cylinder (1231) is connected to the frame body (121), and the telescopic end is rotatably installed with the transmission wheel (1232); the transmission wheel (1232) is slidingly connected to the column (1215) through a sliding support (1235); one end of the transmission chain (1233) is fixed to the corresponding column (1215), and the other end passes through the corresponding transmission wheel (1232) and is fixedly connected with the corresponding sliding block (1221).

4. The high-speed rail box girder retaining wall lifting platform vehicle according to claim 3, characterized in that: The transmission wheel (1232) is a chain wheel, and the transmission chain (1233) is a chain matched with the chain wheel; or the transmission wheel (1232) is a pulley, and the transmission chain (1233) is a steel wire rope matched with the pulley.

5. The high-speed rail box girder retaining wall lifting platform vehicle according to claim 3 or 4, characterized in that: Two opposite transmission wheels (1232) are connected by a connecting shaft (1234).

6. The high-speed railway box girder retaining wall lifting platform vehicle according to any one of claims 1-4, characterized in that: The lower side of the frame body (121) is provided with a passage port one (1211) for the construction materials and / or equipment and / or personnel to go up and down the lifting platform (122); the side of the frame body (121) is provided with a passage port two (1212) corresponding to the top surface of the box girder (4) and for the construction materials and / or equipment and / or personnel to go up and down the box girder (4).

7. The high-speed rail box girder retaining wall lifting platform vehicle according to claim 6, characterized in that: The side opposite to the second passage opening (1212) of the frame body (121) is provided with a third passage opening (1213) at the second passage opening (1212); when the height of the lifting platform (122) corresponds to the height of the top surface of the box girder (4), the second passage opening (1212), the space above the lifting platform (122) and the third passage opening (1213) jointly form a cross beam passage (1214) which can be built between the opposite ends of two adjacent box girders (4).

8. The high-speed rail box girder retaining wall lifting platform vehicle according to any one of claims 1-4 and 7, characterized in that: The frame body (121) is detachably connected to the top end of the walking chassis (11), and the bottom of the frame body (121) is provided with a second lifting leg (124).

9. The high-speed rail box girder retaining wall lifting platform vehicle according to claim 8, characterized in that: The fixed end of the second lifting leg (124) is fixedly installed at the bottom of the frame body (121), and the telescopic end of the second lifting leg (124) can be extended downward to abut against the ground and jacking the frame body (121), so that the frame body (121) is separated from the walking chassis (11) up and down; the telescopic end of the second lifting leg (124) can be retracted upward to place the frame body (121) on the ground, or support the frame body (121) on the ground.

10. The high-speed rail box girder retaining wall lifting platform vehicle according to any one of claims 1-4, 7 and 9, characterized in that: The lifting platform mechanism (12) is a plurality of, and the plurality of lifting platform mechanisms (12) are arranged between two adjacent box girders (4) and arranged in turn along the opposite direction of the two adjacent box girders (4); the cross beam passages (1214) of the plurality of lifting platform mechanisms (12) are connected in turn to form a cross beam bridge between the two adjacent box girders (4).

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