Movable overhead bridge anti-collision wall construction platform and construction method thereof

Abstract

The application discloses a movable overhead bridge anti-collision wall construction platform and a construction method thereof, characterized in that: the outer side of the formwork is provided with an outwardly extending positioning plate, and the positioning plate is provided with a vertical through positioning hole; the form closing mechanism comprises a sliding top plate which is slidably connected with the top of the rack, a clamping arm assembly which clamps the formwork, and a locking assembly which fastens the formwork; the pre-assembly mechanism comprises a sliding bottom plate which is slidably connected with the bottom of the rack, a form core which is matched with the anti-collision wall, and a clamping assembly which overturns the formwork. Through the setting of the form closing mechanism and the pre-assembly mechanism, the positioning assembly and the position adjustment of the formwork are completed on the ground through the pre-assembly process, the formwork is integrally moved, and the overall installation of the formwork and the reinforcement cage is realized, so that the installation precision is ensured; meanwhile, the installation time of the formwork and the reinforcement cage is shortened, the continuous action speed is accelerated, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, in particular to a movable type construction platform for crash barrier of viaduct and a construction method thereof. BACKGROUND

[0002] The crash barrier, as a protective structure on the outer side of the bridge, plays an important role in safety. The construction process includes steel bar binding, formwork installation, concrete pouring, concrete curing and other processes. When installing the formwork, the inner and outer formworks need to be lifted and moved to the two sides of the steel cage. The construction personnel adjust the positions of the inner and outer formworks until they are aligned, and then fix them with connecting pieces, which results in a too cumbersome work process, difficulty in aligning the formwork hole positions, and easy errors in manual operation.

[0003] Patent application No. 202410859519.9 discloses an integrated crash barrier construction trolley. The posture of the trolley is adjusted by an automatic leveling system. The installation and removal of the formwork are realized by a formwork mechanism. The concrete pouring is carried out by an electric control distribution mechanism. After the strength meets the requirements, demolding is carried out. The formwork mechanism is lifted by a lifting mechanism to carry out formwork polishing and other processes. After completion, the formwork mechanism is lowered. The above-mentioned mechanisms are driven by a walking mechanism to move along the length direction of the crash barrier to reach the next construction position. However, the above-mentioned patent refers to a scheme in which the formwork is integrally connected with the hydraulic cylinder, which can improve the installation precision. However, the formwork and the construction trolley cannot be separated, which requires waiting for the previous crash barrier to be poured and dried before disassembling the formwork for the construction of the next crash barrier, which occupies the operation time of the construction trolley, is not conducive to continuous operation, and affects the construction efficiency. SUMMARY

[0004] The present application aims to solve the problems existing in the prior art and provides a movable type construction platform for crash barrier of viaduct and a construction method thereof.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A movable type construction platform for crash barrier of viaduct is used for installing the formwork of the crash barrier, comprising a horizontally installed rack, a lifting mechanism for controlling the lifting of the rack, a traveling mechanism for controlling the movement of the rack, and a hoisting assembly for hoisting the formwork, characterized in that it further comprises a form closing mechanism and a pre-assembly mechanism arranged on both sides of the rack.

[0007] The outer side of the formwork is provided with an outwardly extending positioning plate, and the positioning plate is provided with a vertical through positioning hole.

[0008] The mold closing mechanism comprises a sliding top plate slidably connected with the top of the frame, a clamping arm assembly for clamping the mold plate, and a locking assembly for fastening the mold plate, the clamping arm assembly is slidably connected with the sliding top plate and is clamped with the fixed plate, and the locking assembly is telescopically connected with the sliding top plate and is inserted with the fixed hole;

[0009] The preloading mechanism comprises a sliding bottom plate slidably connected with the bottom of the frame, a mold core matched with the anti-collision wall, and a clamping assembly for overturning the mold plate, the mold core is fixedly connected with the sliding bottom plate and abuts against the inner side of the mold plate, and the clamping assembly is rotatably connected with the sliding bottom plate and abuts against the outer side of the mold plate.

[0010] Preferably, the mold plate comprises oppositely arranged outer and inner plates, the top of the outer plate extends upward and is provided with a horizontally arranged threaded hole, the top of the inner plate is in L-shaped structure and is clamped with the top of the outer plate, a threaded column corresponding to the threaded hole is inserted into the top of the inner plate, the middle of the threaded column is slidably connected with the inner plate, and the end of the threaded column is threadedly connected with the threaded hole.

[0011] Preferably, the clamping arm assembly comprises a horizontal rotary joint, a rotary joint cylinder for driving the horizontal telescoping of the rotary joint, and a rotary joint motor for driving the rotation of the rotary joint, the rotary joint is horizontally aligned with the threaded column, the rotary joint is inserted with the threaded column and drives the threaded column to be screwed into the threaded hole.

[0012] Preferably, the clamping arm assembly comprises symmetrically arranged movable clamping arms, a clamp provided on the inner side of the movable clamping arm, and a buckling cylinder for driving the horizontal telescoping of the clamp, the movable clamping arms are slidably connected with the sliding top plate, the telescopic end of the buckling cylinder is connected with the clamp, the clamp is in U-shaped structure and is clamped with the fixed plate.

[0013] Preferably, the locking assembly comprises a vertically telescopic locking rod and a locking motor for driving the rotation of the locking rod, the locking rod is vertically aligned with the fixed hole, the outer side of the locking rod is provided with an external thread, the inner side of the fixed hole is provided with an internal thread matched with the external thread, the locking rod is inserted into the fixed hole and is threadedly connected with the fixed hole.

[0014] Preferably, the mold core comprises a buffer pad made of elastic material and an electromagnetic block embedded in the buffer pad, the buffer pad covers the outer side of the mold core and abuts against the inner side of the mold plate, and the electromagnetic blocks are uniformly arranged along the buffer pad and are magnetically connected with the mold plate.

[0015] Preferably, the clamping assembly comprises oppositely arranged mold closing clamps and a mold closing cylinder for driving the rotation of the mold closing clamps, the mold closing clamps are rotatably connected with the sliding bottom plate, the fixed end of the mold closing cylinder is movably connected with the sliding bottom plate, the telescopic end of the mold closing cylinder is rotatably connected with the mold closing clamps, the mold closing clamps are matched with the mold plate and abut against the mold plate.

[0016] Preferably, the clamping assembly comprises a pushing block and a blocking block respectively arranged at two ends of the clamping plate, and a pushing cylinder driving the pushing block to move towards the blocking block, the pushing cylinder being connected with the pushing block at the telescopic end, the die plate being clamped between the pushing block and the blocking block and being flush with the die core.

[0017] Preferably, the frame comprises a lifting plate slidingly connected with the sliding top plate, and a base plate slidingly connected with the sliding bottom plate, the lifting mechanism being connected between the lifting plate and the base plate, the base plate being provided at the bottom with a vertically telescopic supporting leg and a supporting cylinder driving the supporting leg to lift, and the traveling mechanism comprising traveling wheels rotatably connected at two sides of the base plate and a traveling motor driving the traveling wheels to rotate.

[0018] A construction method of a movable elevated bridge crash barrier wall construction platform, characterized in that it is implemented based on the movable elevated bridge crash barrier wall construction platform, comprising the following steps:

[0019] S1: the reinforcement cage of the crash barrier wall is installed at the left side of the elevated bridge, the lifting assembly moves the die plate to the sliding bottom plate, the die plate is placed in an inclined manner, the outer side of the die plate is attached to the clamping assembly, and the placement direction of the die plate is consistent with the die core;

[0020] S2: the clamping assembly is rotated inward to push the die plate to flip over until the inner side of the die plate is attached to the die core, the die plate is clamped between the clamping assembly and the die core, and the installation of the die plate and the pre-assembly mechanism is completed;

[0021] S3: taking the central axis of the frame as the reference, the sliding bottom plate is slid along the bottom of the frame to the left, and the sliding top plate is slid along the top of the frame to the right until the clamping arm assembly is longitudinally aligned with the clamping assembly;

[0022] S4: the lifting mechanism controls the frame to descend, driving the clamping arm assembly to move downward until it is horizontally aligned with the clamping assembly, the locking assembly is inserted into the fixed mounting hole, the die plate is locked, and the installation of the die plate and the die assembly mechanism is completed;

[0023] S5: the clamping assembly is rotated outward to release the clamping of the die plate, the lifting mechanism controls the frame to ascend, driving the clamping arm assembly to move upward, and the sliding top plate is slid along the top of the frame to the left until the clamping arm assembly is longitudinally aligned with the reinforcement cage;

[0024] S6: the lifting mechanism controls the frame to descend, driving the clamping arm assembly to move downward until it is horizontally aligned with the reinforcement cage, the clamping arm assembly moves inward to clamp the fixed mounting plate, the die plate is pushed to tightly attach to the reinforcement cage, and the die plate is fixed by using fasteners;

[0025] S7: the clamping arm assembly moves outward to release the clamping of the fixed mounting plate, the locking assembly moves upward to release the locking of the fixed mounting hole, the lifting mechanism controls the frame to ascend, driving the clamping arm assembly to move upward and separate from the die plate, and the installation of the die plate and the reinforcement cage is completed.

[0026] The present application has the following beneficial effects:

[0027] The present application sets up the mold closing mechanism and the preloading mechanism, when the mold plate needs to be installed, the mold plate is hoisted to the sliding bottom plate, the clamping assembly pushes the mold plate to overturn until it is attached to the mold core, the mold plate is clamped between the clamping assembly and the mold core, and the installation of the mold plate and the preloading mechanism is completed; the sliding bottom plate slides relative to the sliding top plate until the clamping arm assembly and the clamping assembly are longitudinally aligned, the lifting mechanism controls the rack to descend until the clamping arm assembly and the clamping assembly are horizontally aligned, the locking assembly is inserted and locked with the fixed hole, and the installation of the mold plate and the mold closing mechanism is completed; the clamping assembly is released from clamping, the lifting mechanism controls the rack to ascend, driving the preloaded mold plate to ascend, the sliding top plate slides relative to the sliding bottom plate until the clamping arm assembly and the reinforcement cage are longitudinally aligned, the lifting mechanism controls the rack to descend until the clamping arm assembly and the reinforcement cage are horizontally aligned; the clamping arm assembly moves inward to clamp the fixed plate, pushing the mold plate to tightly adhere to the reinforcement cage, and the mold plate is fixed by using fasteners; the clamping arm assembly is released from clamping, the locking assembly is released from locking, the lifting mechanism controls the rack to ascend, the clamping arm assembly and the mold plate are separated from each other, and the installation of the mold plate and the reinforcement cage is completed. After the preloading process, the mold plate is positioned and assembled on the ground, the position is adjusted, and then the mold plate is integrally moved to realize overall installation with the reinforcement cage, ensuring installation accuracy; at the same time, the installation time of the mold plate and the reinforcement cage is shortened, the continuous action speed is accelerated, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 State schematic view of step S1 of the present application

[0029] Figure 2 State schematic view of step S2 of the present application

[0030] Figure 3 State schematic view of step S3 of the present application

[0031] Figure 4 State schematic view of step S4 of the present application

[0032] Figure 5 State schematic view of step S5 of the present application

[0033] Figure 6 State schematic view of step S6 of the present application

[0034] Figure 7 State schematic view of step S7 of the present application

[0035] Figure 8 Structure schematic view of the mold closing mechanism of the present application

[0036] Figure 9Structure diagram of the pre-assembly mechanism

[0037] BRIEF DESCRIPTION OF DRAWINGS: lifting mechanism 1, hoisting assembly 2, fixed plate 3, fixed hole 4, sliding top plate 5, sliding bottom plate 6, mold core 7, outer plate 8, inner plate 9, threaded hole 10, threaded column 11, rotating joint 12, movable clamp arm 13, caliper 14, buckling cylinder 15, locking rod 16, locking motor 17, electromagnetic block 18, mold closing clamp plate 19, mold closing cylinder 20, pushing block 21, lifting plate 22, base plate 23, supporting leg 24, walking wheel 25, reinforcement cage 26. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] REFERENCE Figures 1 to 9 , the present application provides an embodiment:

[0040] A movable overhead bridge anti-collision wall construction platform is used for installing the formwork of the anti-collision wall, comprising a horizontally installed rack, a lifting mechanism 1 for controlling the lifting of the rack, a traveling mechanism for controlling the movement of the rack, and a hoisting assembly 2 for hoisting the formwork; further comprising a mold closing mechanism and a pre-assembly mechanism arranged on both sides of the rack;

[0041] The outer side of the formwork is provided with a fixed plate 3 extending outward, and the fixed plate 3 is provided with a vertical fixed hole 4;

[0042] The mold closing mechanism comprises a sliding top plate 5 slidingly connected with the top of the rack, a clamp arm assembly for clamping the formwork, and a locking assembly for fastening the formwork, the clamp arm assembly is slidingly connected with the sliding top plate 5 and is clamped with the fixed plate 3, and the locking assembly is telescopically connected with the sliding top plate 5 and is inserted with the fixed hole 4;

[0043] The pre-assembly mechanism comprises a sliding bottom plate 6 slidingly connected with the bottom of the rack, a mold core 7 matched with the anti-collision wall, and a clamping assembly for overturning the formwork, the mold core 7 is fixedly connected with the sliding bottom plate 6 and abuts against the inner side of the formwork, and the clamping assembly is rotationally connected with the sliding bottom plate 6 and abuts against the outer side of the formwork.

[0044] The rack is horizontally installed and includes a lifting plate 22 at the top and a base plate 23 at the bottom. The lifting mechanism 1 includes a plurality of vertically installed multi-section telescopic rods, the bottom of the lifting mechanism 1 is connected with the base plate 23, the top of the lifting mechanism 1 is connected with the lifting plate 22, and the lifting mechanism 1 can be driven by a hydraulic drive mode to adjust the telescopic distance of the lifting mechanism 1, thereby controlling the lifting of the rack. The traveling mechanism includes traveling wheels 25 connected with the base plate 23, and the traveling mechanism can be driven by a motor drive mode to drive the traveling wheels 25 to rotate, thereby controlling the movement of the rack. The hoisting assembly 2 includes a lifting hook suspended from the lifting plate 22, and the hoisting assembly 2 can be driven by a motor drive mode to control the lifting and traction of the lifting hook, thereby hoisting the formwork.

[0045] The formwork and the crash barrier wall are shaped and sized to correspond to each other, are erected on both sides of the reinforcement cage 26, and are constructed by formwork installation, concrete pouring, and concrete curing processes. The fixed mounting plate 3 is arranged outside the formwork and extends horizontally outward. The fixed mounting plate 3 has a rectangular structure and serves as a clamping area of the formwork. The fixed mounting hole 4 is arranged in the middle of the fixed mounting plate 3 and is formed downward from the surface of the fixed mounting plate 3. The fixed mounting hole 4 has a through structure and serves as a locking area of the formwork.

[0046] The sliding top plate 5 is arranged at the top of the rack, is slidably connected with the top of the rack, slides in the left-right direction, and is used to adjust the horizontal positions of the clamping arm assembly and the locking assembly. The clamping arm assembly is arranged downward, is slidably connected with the sliding top plate 5, slides in the left-right direction, and can be clamped with the fixed mounting plate 3 by adjusting the distance between the clamping arm assemblies, so as to push the fixed mounting plate 3 to tightly contact the reinforcement cage 26, thereby playing a role of pressurization and stabilization. The locking assembly is arranged downward, is telescopically connected with the sliding top plate 5, telescopically extends in the vertical direction, and can be inserted with the fixed mounting hole 4 by adjusting the vertical height of the locking assembly, so as to realize the fastening connection with the formwork and play a role of locking and fixing.

[0047] The sliding bottom plate 6 is arranged at the bottom of the rack, is slidably connected with the bottom of the rack, slides in the left-right direction, and is used to adjust the horizontal positions of the mold core 7 and the clamping assembly. The mold core 7 is shaped and sized to correspond to the crash barrier wall and is placed in the same direction as the reinforcement cage 26 and is fixedly connected with the sliding bottom plate 6. In the pre-assembly process, the mold core 7 plays a role of profiling the reinforcement cage 26, and after the mold core 7 abuts against the inner side of the formwork, the installation position and the relative distance of the formwork can be intuitively adjusted. The clamping assembly is arranged on both sides of the mold core 7, is rotatably connected with the sliding bottom plate 6, rotates in the direction of the mold core 7, and can abut against the outer side of the formwork by adjusting the rotation angle of the clamping assembly, so as to push the formwork to overturn and make the formwork fit the mold core 7, thereby clamping the formwork between the clamping assembly and the mold core 7.

[0048] The present application sets up the mold closing mechanism and the preloading mechanism, when the mold plate needs to be installed, the mold plate is hoisted to the sliding bottom plate 6, the clamping assembly pushes the mold plate to overturn until it is attached to the mold core 7, the mold plate is clamped between the clamping assembly and the mold core 7, the installation of the mold plate and the preloading mechanism is completed; the sliding bottom plate 6 slides relative to the sliding top plate 5 until the clamping arm assembly and the clamping assembly are longitudinally aligned, the lifting mechanism 1 controls the rack to descend until the clamping arm assembly and the clamping assembly are horizontally aligned, the locking assembly is inserted and locked with the fixed hole 4, the installation of the mold plate and the mold closing mechanism is completed; the clamping assembly is released from clamping, the lifting mechanism 1 controls the rack to ascend, driving the preloaded mold plate to ascend, the sliding top plate 5 slides relative to the sliding top plate 5 until the clamping arm assembly and the reinforcement cage 26 are longitudinally aligned, the lifting mechanism 1 controls the rack to descend until the clamping arm assembly and the reinforcement cage 26 are horizontally aligned; the clamping arm assembly moves inward to clamp the fixed plate 3, pushing the mold plate to tightly adhere to the reinforcement cage 26, and the mold plate is fixed by using fasteners; the clamping arm assembly is released from clamping, the locking assembly is released from locking, the lifting mechanism 1 controls the rack to ascend, the clamping arm assembly and the mold plate are separated from each other, and the installation of the mold plate and the reinforcement cage 26 is completed. After the preloading process, the mold plate is positioned and assembled on the ground, the position is adjusted, then the mold plate is integrally moved, and the whole installation of the mold plate and the reinforcement cage 26 is realized, so that the installation precision is ensured; at the same time, the installation time of the mold plate and the reinforcement cage 26 is shortened, the continuous action speed is accelerated, and the construction efficiency is improved.

[0049] In the embodiment, as preferred, the mold plate comprises oppositely arranged outer plate 8 and inner plate 9, the top of the outer plate 8 extends upward, and is provided with horizontally arranged screw hole 10, the top of the inner plate 9 is in L-shaped structure, and is clamped with the top of the outer plate 8, the inner plate 9 is inserted with screw column 11 corresponding to the screw hole 10, the middle part of the screw column 11 is slidingly connected with the inner plate 9, and the end part of the screw column 11 is threadedly connected with the screw hole 10.

[0050] The outer plate 8 and the inner plate 9 are oppositely arranged and respectively matched with both sides of the crash barrier, the reinforcement cage 26 of the crash barrier can be installed on the left side of the viaduct, the outer plate 8 is arranged relative to the left side of the reinforcement cage 26, and the inner plate 9 is arranged relative to the right side of the reinforcement cage 26. The top of the outer plate 8 extends upward, and is provided with horizontally arranged screw hole 10, the top of the inner plate 9 is in L-shaped structure, and is clamped with the top of the outer plate 8, the inner plate 9 is inserted with screw column 11 corresponding to the screw hole 10, the middle part of the screw column 11 is slidingly connected with the inner plate 9, and the end part of the screw column 11 is threadedly connected with the screw hole 10.

[0051] In the embodiment, preferably, the clamping arm assembly comprises a horizontal rotary joint 12, a rotary pressing cylinder for driving the horizontal extension and retraction of the rotary joint 12, and a rotary motor for driving the rotation of the rotary joint 12, the rotary joint 12 is horizontally aligned with the screwing column 11, the rotary joint 12 is inserted into the screwing column 11, and the screwing column 11 is screwed into the screwing hole 10.

[0052] The rotary joint 12 is horizontally arranged and opposite to the outer side of the inner plate 9, and horizontally aligned with the screwing column 11. The rotary pressing cylinder is arranged in the horizontal direction, and the output end of the rotary pressing cylinder is connected with the rotary joint 12. The rotary joint 12 can be driven to extend and retract horizontally by using a hydraulic driving mode. The rotary motor is connected with the rotary joint 12 to drive the rotary joint 12 to rotate. When the formwork needs to be fixed, the outer plate 8, the inner plate 9 and the reinforcement cage 26 are butted, the top of the outer plate 8 is clamped with the top of the inner plate 9, the rotary pressing cylinder drives the rotary joint 12 to extend until the rotary joint 12 is inserted into and fixed with the screwing column 11, and the rotary motor drives the rotary joint 12 to rotate so that the screwing column 11 is screwed into the screwing hole 10, thereby improving the installation efficiency.

[0053] In the embodiment, preferably, the clamping arm assembly comprises symmetrically arranged movable clamping arms 13, clamps 14 arranged on the inner side of the movable clamping arms 13, and a buckling pressing cylinder 15 for driving the horizontal extension and retraction of the clamps 14. The movable clamping arms 13 are slidingly connected with the sliding top plate 5. The extension and retraction end of the buckling pressing cylinder 15 is connected with the clamps 14. The clamps 14 have a U-shaped structure and are clamped with the fixed plate 3.

[0054] The movable clamping arms 13 are symmetrically arranged and vertically extended downward, and are slidingly connected with the sliding top plate 5 and slide in the left-right direction. The clamps 14 are arranged on the inner side of the movable clamping arms 13 and horizontally extend from the inner side of the movable clamping arms 13. The clamps 14 have a U-shaped structure and are matched in shape and corresponding in position with the fixed plate 3. The fixed end of the buckling pressing cylinder 15 is connected with the movable clamping arms 13, and the extension and retraction end of the buckling pressing cylinder 15 is connected with the clamps 14. The clamps 14 can be driven to extend and retract horizontally by using a hydraulic driving mode. When the formwork needs to be pushed to closely adhere to the reinforcement cage 26, the lifting mechanism 1 controls the rack to descend until the movable clamping arms 13 are horizontally aligned with the reinforcement cage 26. The movable clamping arms 13 are respectively arranged on both sides of the reinforcement cage 26. The clamping arm assembly moves inward, the clamps 14 are clamped with the fixed plate 3, the buckling pressing cylinder 15 drives the clamps 14 to extend, the clamps 14 drive the fixed plate 3, so that the formwork closely adheres to the reinforcement cage 26, and the formwork is maintained to exert pressure, thereby improving the installation stability.

[0055] In the embodiment, preferably, the locking assembly comprises a vertically extending and retracting locking rod 16 and a locking motor 17 for driving the rotation of the locking rod 16. The locking rod 16 is vertically aligned with the fixed hole 4. The outer side of the locking rod 16 is provided with external threads. The inner side of the fixed hole 4 is provided with internal threads matched with the external threads. The locking rod 16 is inserted into the fixed hole 4 and is threadedly connected with the fixed hole 4.

[0056] The locking rod 16 is vertically installed and is arranged to be retractable downward, and is vertically aligned with the fixing hole 4. The locking rod 16 is externally threaded, and the inside of the fixing hole 4 is internally threaded to match the external thread. The locking seat is slidably connected with the sliding top plate 5 and slides in the left-right direction. The locking rod 16 and the locking motor 17 are installed on the locking seat, and the locking rod 16 is drivingly connected with the locking motor 17. When it is necessary to insert and fix the locking rod 16 into the fixing hole 4, the locking rod 16 is extended downward until the locking rod 16 is inserted and fixed with the fixing hole 4. The locking motor 17 drives the locking rod 16 to rotate, so that the locking rod 16 is screwed into the fixing hole 4, thereby achieving fixed connection.

[0057] In the embodiment, preferably, the mold core 7 comprises a buffer pad made of elastic material, and the electromagnetic block 18 embedded in the buffer pad. The buffer pad covers the outside of the mold core 7 and abuts against the inside of the mold plate. The electromagnetic block 18 is uniformly arranged along the buffer pad and is magnetically connected with the mold plate.

[0058] The buffer pad is made of elastic material, which can be rubber material. The buffer pad covers the outside of the mold core 7 and is used to abut against the inside of the mold plate, so as to avoid rigid contact and damage the pouring and fitting surface of the mold plate. The electromagnetic block 18 is embedded in the buffer pad and is uniformly arranged along the buffer pad, and has electromagnetic adsorption function. When it is necessary to fit the mold plate with the mold core 7, the clamping assembly pushes the mold plate to overturn until the mold plate abuts against the buffer pad. The mold plate is clamped between the clamping assembly and the mold core 7, and the mold plate is magnetically fixed by the electromagnetic block 18, thereby improving the installation and fastening.

[0059] In the embodiment, preferably, the clamping assembly comprises the mold closing clamping plate 19 oppositely arranged, and the mold closing cylinder 20 driving the mold closing clamping plate 19 to rotate. The mold closing clamping plate 19 is rotatably connected with the sliding bottom plate 6. The fixed end of the mold closing cylinder 20 is movably connected with the sliding bottom plate 6, and the telescopic end of the mold closing cylinder 20 is rotatably connected with the mold closing clamping plate 19. The mold closing clamping plate 19 is matched with the mold plate and abuts against the mold plate.

[0060] The mold closing clamping plate 19 is oppositely arranged and is located on the left and right sides of the mold core 7 and is matched with the shape of the mold plate. The mold closing clamping plate 19 is rotatably connected with the sliding bottom plate 6 and rotates in the direction of the mold core 7. The fixed end of the mold closing cylinder 20 is movably connected with the sliding bottom plate 6, and the telescopic end of the mold closing cylinder 20 is rotatably connected with the mold closing clamping plate 19. The mold closing cylinder 20 can be driven by hydraulic drive to drive the mold closing clamping plate 19 to rotate. When it is necessary to fit the mold plate with the mold core 7, the hoisting assembly 2 moves the mold plate to the sliding bottom plate 6, the mold plate abuts against the mold closing clamping plate 19, the mold closing cylinder 20 drives the mold closing clamping plate 19 to rotate in the direction of the mold core 7, and the mold plate is pushed to overturn until the mold plate is fitted with the mold core 7. The mold plate is clamped between the mold closing clamping plate 19 and the mold core 7, thereby achieving position fixation of the mold plate.

[0061] In this embodiment, as preferred, the clamping assembly includes a pushing block 21 and a blocking block respectively arranged at both ends of the mold clamping plate 19, and a pushing cylinder driving the pushing block 21 to move towards the blocking block, the telescopic end of the pushing cylinder is connected with the pushing block 21, the mold plate is clamped between the pushing block 21 and the blocking block, and is flush with the mold core 7.

[0062] The pushing block 21 and the blocking block are oppositely arranged and respectively located at the front and rear ends of the mold clamping plate 19, the blocking block can be fixedly connected with the rear end of the mold clamping plate 19, and the pushing block 21 is movably connected with the front end of the mold clamping plate 19, the blocking block is flush with the rear end of the mold core 7 and serves as a front and rear limiting reference of the mold plate. The pushing cylinder is installed on the mold clamping plate 19 and is arranged in the front and rear directions, the telescopic end of the pushing cylinder is connected with the pushing block 21, and the pushing cylinder can be driven in a hydraulic manner to drive the pushing block 21 to move towards the blocking block. When the mold plate needs to be abutted against the mold clamping plate 19, the hoisting assembly 2 moves the mold plate to the sliding bottom plate 6, the mold plate is inclined and abutted against the mold clamping plate 19, the pushing cylinder drives the pushing block 21 to move rearward, the pushing block 21 abuts against the front end of the mold plate, the mold plate is pushed to move towards the blocking block, until the mold plate abuts against the blocking block, the mold plate is clamped between the pushing block 21 and the blocking block, and is flush with the mold core 7, thereby improving the positioning accuracy.

[0063] In this embodiment, as preferred, the rack includes a lifting plate 22 slidably connected with the sliding top plate 5, and a base plate 23 slidably connected with the sliding bottom plate 6, the lifting mechanism 1 is connected between the lifting plate 22 and the base plate 23, the base plate 23 is provided with vertically telescopic supporting feet 24 and a supporting cylinder driving the supporting feet 24 to lift, and the traveling mechanism includes traveling wheels 25 rotatably connected to both sides of the base plate 23 and a traveling motor driving the traveling wheels 25 to rotate.

[0064] The lifting plate 22 is located at the top of the rack and is slidably connected with the sliding top plate 5, and the mold clamping mechanism is arranged below the lifting plate 22. The base plate 23 is located at the bottom of the rack and is slidably connected with the sliding bottom plate 6, and the pre-assembly mechanism is arranged above the base plate 23. The lifting mechanism 1 is located between the lifting plate 22 and the base plate 23, the fixed end of the lifting mechanism 1 is connected with the base plate 23, the telescopic end of the lifting mechanism 1 is connected with the lifting plate 22, and the lifting movement of the lifting plate 22 is realized through the lifting mechanism 1. The traveling wheels 25 are located at both sides of the base plate 23, the traveling motor is drivingly connected with the traveling wheels 25, drives the traveling wheels 25 to rotate, and realizes the traveling function of the rack. The supporting feet 24 are located at the bottom of the base plate 23 and are arranged to be telescopic downward, the telescopic end of the supporting cylinder is connected with the supporting feet 24, the supporting cylinder is driven in a hydraulic manner to drive the supporting feet 24 to lift, so that the rack is supported to avoid movement during use.

[0065] Referring to Figures 1 to 9 , the present application provides another embodiment:

[0066] A construction method of a movable overhead bridge crash wall construction platform, which is implemented based on the movable overhead bridge crash wall construction platform, and comprises the following steps:

[0067] S1: The reinforcement cage 26 of the crash wall is installed on the left side of the overhead bridge, the lifting assembly 2 moves the formwork to the sliding bottom plate 6, the formwork is placed in an inclined manner, the outer side of the formwork is attached to the clamping assembly, and the placement direction of the formwork and the mold core 7 is consistent;

[0068] Specifically, the lifting assembly 2 moves the formwork to the sliding bottom plate 6, the formwork is placed in an inclined manner on the combined mold clamping plate 19, the pushing block 21 is driven by the pushing cylinder to move backward, the pushing block 21 abuts against the front end of the formwork, the formwork is pushed to move in the direction of the blocking block, until the formwork abuts against the blocking block, the formwork is clamped between the pushing block 21 and the blocking block, and is flush with the mold core 7.

[0069] S2: The clamping assembly is rotated inward, the formwork is pushed to flip, until the inner side of the formwork is attached to the mold core 7, the formwork is clamped between the clamping assembly and the mold core 7, and the installation of the formwork and the pre-assembly mechanism is completed;

[0070] Specifically, the combined mold clamping plate 19 is driven by the combined mold cylinder 20 to rotate in the direction of the mold core 7, the formwork is flipped, until the formwork is attached to the mold core 7, the formwork is clamped between the combined mold clamping plate 19 and the mold core 7, and the formwork is fixed by the electromagnetic block 18.

[0071] S3: Taking the central axis of the rack as the reference, the sliding bottom plate 6 slides along the bottom of the rack to the left, and the sliding top plate 5 slides along the top of the rack to the right, until the clamping arm assembly and the clamping assembly are longitudinally aligned;

[0072] S4: The lifting mechanism 1 controls the rack to descend, drives the clamping arm assembly to move downward, until it is horizontally aligned with the clamping assembly, the locking assembly is inserted into the fixed mounting hole 4, the formwork is locked, and the installation of the formwork and the combined mold mechanism is completed;

[0073] Specifically, the locking rod 16 extends downward, until the locking rod 16 is inserted and fixed with the fixed mounting hole 4, and the locking motor 17 drives the locking rod 16 to rotate, so that the locking rod 16 is screwed into the fixed mounting hole 4.

[0074] S5: The clamping assembly is rotated outward to release the clamping of the formwork, the lifting mechanism 1 controls the rack to ascend, drives the clamping arm assembly to move upward, and the sliding top plate 5 slides along the top of the rack to the left, until the clamping arm assembly and the reinforcement cage 26 are longitudinally aligned;

[0075] S6: The lifting mechanism 1 controls the rack to descend, drives the clamping arm assembly to move downward, until it is horizontally aligned with the reinforcement cage 26, the clamping arm assembly moves inward to clamp the fixed mounting plate 3, the formwork is pushed to tightly adhere to the reinforcement cage 26, and the formwork is fixed by using fasteners;

[0076] Specifically, the clamping arm assembly moves inward, the calipers 14 are clamped with the fixed plate 3, the clamping cylinder 15 pushes the calipers 14 to extend, the calipers 14 push the fixed plate 3, so that the formwork is tightly attached to the reinforcement cage 26, and the pressure on the formwork is maintained. At the same time, the top of the outer plate 8 is clamped with the top of the inner plate 9, the rotating cylinder drives the rotating joint 12 to extend until the rotating joint 12 is inserted and fixed with the threaded column 11, the rotating motor drives the rotating joint 12 to rotate, so that the threaded column 11 is screwed into the threaded hole 10.

[0077] S7: The clamping arm assembly moves outward, the clamping with the fixed plate 3 is released, the locking assembly moves upward, the locking with the fixed hole 4 is released, the lifting mechanism 1 controls the frame to rise, drives the clamping arm assembly to move upward, and separates from the formwork, completes the installation of the formwork and the reinforcement cage 26.

[0078] The above is only the preferred embodiment 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, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A mobile elevated bridge crash barrier construction platform for installing crash barrier formwork, comprising a horizontally installed frame, a lifting mechanism for controlling the lifting and lowering of the frame, a traveling mechanism for controlling the movement of the frame, and a hoisting assembly for hoisting the formwork, characterized in that: It also includes a mold closing mechanism and a pre-assembly mechanism located on both sides of the frame; The template has an outwardly extending mounting plate on its outer side, and the mounting plate has a vertically penetrating mounting hole. The mold clamping mechanism includes a sliding top plate that is slidably connected to the top of the frame, a clamping arm assembly for clamping the mold template, and a locking assembly for fastening the mold template. The clamping arm assembly is slidably connected to the sliding top plate and is engaged with the mounting plate. The locking assembly is telescopically connected to the sliding top plate and is inserted into the mounting hole. The pre-assembly mechanism includes a sliding base plate slidably connected to the bottom of the frame, a mold core matched with the anti-collision wall, and a clamping assembly for flipping the template. The mold core is fixedly connected to the sliding base plate and abuts against the inner side of the template. The clamping assembly is rotatably connected to the sliding base plate and abuts against the outer side of the template.

2. The mobile elevated bridge crash barrier construction platform according to claim 1, characterized in that: The template includes an outer plate and an inner plate arranged opposite to each other. The top of the outer plate extends upward and is provided with horizontally arranged screw holes. The top of the inner plate has an L-shaped structure and is snapped into the top of the outer plate. A screw post corresponding to the screw hole is inserted into the top of the inner plate. The middle part of the screw post is slidably connected to the inner plate, and the end of the screw post is threadedly connected to the screw hole.

3. The movable elevated bridge crash barrier construction platform according to claim 2, characterized in that: The clamping arm assembly includes a horizontally arranged rotary joint, a rotary joint pressure cylinder for driving the rotary joint to extend and retract horizontally, and a rotary joint motor for driving the rotary joint to rotate. The rotary joint and the screw post are horizontally aligned, the rotary joint and the screw post are inserted into each other, and the screw post is driven to be screwed into the screw hole.

4. The mobile elevated bridge crash barrier construction platform according to claim 1, characterized in that: The clamping arm assembly includes symmetrically arranged movable clamping arms, a caliper located inside the movable clamping arms, and a locking cylinder that drives the caliper to extend and retract horizontally. The movable clamping arms are slidably connected to the sliding top plate, and the extension end of the locking cylinder is connected to the caliper. The caliper has a U-shaped structure and is engaged with the mounting plate.

5. The mobile elevated bridge crash barrier construction platform according to claim 1, characterized in that: The locking assembly includes a vertically telescopic locking rod and a locking motor that drives the locking rod to rotate. The locking rod is vertically aligned with the mounting hole. The outer side of the locking rod is provided with an external thread, and the inner side of the mounting hole is provided with an internal thread that matches the external thread. The locking rod is inserted into the mounting hole and is threadedly connected to the mounting hole.

6. The mobile elevated bridge crash barrier construction platform according to claim 1, characterized in that: The mold core includes a buffer pad made of elastic material and an electromagnetic block embedded in the buffer pad. The buffer pad covers the outside of the mold core and abuts against the inside of the template. The electromagnetic blocks are evenly distributed along the buffer pad and are magnetically connected to the template.

7. The movable elevated bridge crash barrier construction platform according to claim 1, characterized in that: The clamping assembly includes a mold clamping plate disposed opposite to the mold clamping plate, and a mold clamping cylinder for driving the mold clamping plate to rotate. The mold clamping plate is rotatably connected to the sliding base plate. The fixed end of the mold clamping cylinder is movably connected to the sliding base plate. The telescopic end of the mold clamping cylinder is rotatably connected to the mold clamping plate. The mold clamping plate is matched with the template and abuts against the template.

8. The movable elevated bridge crash barrier construction platform according to claim 7, characterized in that: The clamping assembly includes a pusher block and a stop block respectively located at both ends of the mold clamping plate, and a pusher cylinder that drives the pusher block to move towards the stop block. The telescopic end of the pusher cylinder is connected to the pusher block. The template is clamped between the pusher block and the stop block and is flush with the mold core.

9. The mobile elevated bridge crash barrier construction platform according to claim 1, characterized in that: The frame includes a lifting plate slidably connected to the sliding top plate and a base plate slidably connected to the sliding bottom plate. A lifting mechanism is connected between the lifting plate and the base plate. The bottom of the base plate is provided with vertically extendable support feet and a support cylinder for driving the support feet to rise and fall. The traveling mechanism includes traveling wheels rotatably connected to both sides of the base plate and a traveling motor for driving the traveling wheels to rotate.

10. A construction method for a movable elevated bridge crash barrier construction platform, characterized in that, The construction platform based on any one of claims 1 to 9 for a movable viaduct crash barrier includes the following steps: S1: The steel cage of the crash barrier is installed on the left side of the viaduct. The hoisting assembly moves the formwork to the sliding base plate. The formwork is placed at an angle, with the outer side of the formwork in contact with the clamping assembly. The placement direction of the formwork and the core is consistent. S2: The clamping component rotates inward, pushing the template to flip until the inner side of the template fits against the mold core. The template is clamped between the clamping component and the mold core, completing the installation of the template and the pre-assembly mechanism. S3: Using the central axis of the frame as a reference, the sliding base plate slides to the left along the bottom of the frame, and the sliding top plate slides to the right along the top of the frame until the clamping arm assembly and the clamping assembly are longitudinally aligned. S4: The lifting mechanism controls the frame to descend, driving the clamping arm assembly to move downward until it is horizontally aligned with the clamping assembly. The locking assembly is then inserted downward into the fixed mounting hole to lock the template, completing the installation of the template and the mold closing mechanism. S5: The clamping assembly rotates outward to release the clamp on the template. The lifting mechanism controls the frame to rise, which drives the clamping arm assembly to move upward. The sliding top plate slides to the left along the top of the frame until the clamping arm assembly is longitudinally aligned with the rebar cage. S6: The lifting mechanism controls the frame to descend, driving the clamping arm assembly to move downward until it is horizontally aligned with the rebar cage. The clamping arm assembly moves inward to engage the fixed plate, pushes the template tightly against the rebar cage, and uses fasteners to fix the template. S7: The clamping arm assembly moves outward to release the clamping of the fixed plate, the locking assembly moves upward to release the locking of the fixed hole, the lifting mechanism controls the frame to rise, driving the clamping arm assembly to move upward and separate from the template, thus completing the installation of the template and the rebar cage.

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