A self-propelled lifting arch bridge construction platform device

Abstract

The utility model belongs to the field of descending construction platform technology, specifically, a self-propelled escalable arch bridge construction platform device, including a telescopic basket, 2 groups of 32 steel wire ropes are arranged at the main arch top surface, which are tied to the main span arch top body as the anchor point of the traction steel wire rope of the maintenance construction platform, and the telescopic basket is moved to the center position of the bottom of the arch bridge. A compression support unit is movably sleeved on the outer surface of the telescopic basket, and the compression support unit includes a moving frame and a support frame. The utility model arranges 2 groups of 32 steel wire ropes at the main arch top surface, which are tied to the main span arch top body as the anchor point of the traction steel wire rope of the maintenance construction platform, and the telescopic basket is moved to the center position of the bottom of the arch bridge, and moves on the surface of the telescopic basket in cooperation with the moving frame, and one end of the lifting main machine is installed on the outer surface of the guide frame, so that the operating platform can be adjusted in the face of arch bridges of different sizes, and the support frame is limited in position in cooperation with the support rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of a descent construction platform, in particular to a self-propelled descent arch bridge construction platform device. Background Art

[0002] The main load-bearing structure of an arch bridge is the arch ring, which is mainly used for bearing pressure and can be built with masonry materials with strong pressure resistance. Concrete arch bridges generally use a hingeless arch system. The exterior of the hingeless arch structure increases the number of static indeterminate times, which will cause greater additional internal forces. Due to the importance of the arch ring to the stress and safety of the arch bridge, it is very necessary to inspect the arch ring after the arch bridge has been built for a certain number of years. A device is needed that can provide a working platform to inspect the entire arch ring. The existing bridge maintenance vehicles have a limited working distance and cannot reach parts far from the bridge deck. Most parts of the arch ring have a large height difference from the natural ground.

[0003] The distance is far and it is not suitable to set up scaffolding.

[0004] A Chinese patent with publication number CN213681766U discloses a lifting work platform for arch ring inspection of an arch bridge, including a work platform and a lifting mechanism bracket arranged on both sides of the arch bridge deck. The left and right ends of the work platform are connected to a winch through a working wire rope through pulley a, pulley b and pulley c on the lifting mechanism bracket in sequence. A safety lock is provided on the work platform. One end of the safety wire rope is connected to a safety wire rope fixing ear arranged on the lifting mechanism bracket, and the other end passes through the safety lock and extends to the ground. The utility model shortens or lengthens the working wire rope by starting the winch, thereby raising or lowering the work platform. The lifting mechanism bracket is moved in the direction of the rolling wheel, thereby moving the work platform in the direction of the bridge. The position of the work platform is easy to move, and it can reach every position at the bottom of the arch ring, which is convenient for construction. The use of the equipment does not require interruption of traffic, reducing interference caused by construction.

[0005] In the current existing technology, when inspecting arch bridges in China, aerial platforms, cranes and hangers are generally used as construction platforms. When aerial platforms or cranes are used as construction platforms, they have a great impact on the driving under the bridge and pose a great safety risk. The working platforms are directly fixed on the surface of the inspection frame, and the ductility of the working platforms is limited. The scope, area and length that can be constructed are limited, and it is impossible to cover a large area. In addition, the existing fences are fixed. When encountering the curved surface of the arch bridge, the construction platform cannot be tilted, which will result in the problem of limited contact range and area between the construction platform and the curved arch bridge.

[0006] To this end, the utility model provides a self-propelled liftable arch bridge construction platform device. Utility Model Content

[0007] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0008] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a self-propelled liftable arch bridge construction platform device, including a telescopic basket, 2 groups of 32 steel wire ropes are arranged at the main arch top surface, tied to the main span arch top body as anchor points for traction steel wire ropes of the maintenance construction platform, and the telescopic basket is moved to the central position of the bottom of the arch bridge. A compression support unit is movably sleeved on the outer surface of the telescopic basket, and the compression support unit includes a moving frame and a supporting frame. A lifting and moving unit is movably sleeved on the outer surface of the support frame, and the lifting and moving unit includes an external telescopic ladder, a guide frame and a climber. A swing extension unit is arranged on the outer surface of the guide frame, and the swing extension unit includes a double-strand limit rod, a pusher and an operating platform.

[0009] Preferably, the inner surface of the movable frame is slidably connected to the outer surface of the telescopic basket, and the movable frame moves on the surface of the telescopic basket. One end of the lifting main unit is installed on the outer surface of the guide frame, and the operating platform can be adjusted to arch bridges of different sizes. There are multiple support frames.

[0010] Preferably, the bottom end of the support frame is fixedly mounted on the top surface of the left side of the telescopic basket, the bottom surface of the other support frame is fixedly mounted on the top surface of the mobile frame, and the top surface of the mobile frame is fixedly connected with a support rod arranged on the outer surface of the support frame, and the support rod is cooperated with to limit the position of the support frame, and the climber is cooperated to move upward on the surface of the external telescopic ladder to raise or lower its height.

[0011] Preferably, the outer side surface of the external telescopic ladder is arranged on the outer side surface of the supporting frame, and the position of the climber is arranged on the inner side surface of the guide frame.

[0012] Preferably, the outer surface of the output end of the climber is slidably sleeved on the outer surface of the supporting frame and the outer surface of the external telescopic ladder respectively, and the outer surface of the guide frame is detachably installed with a lifting main unit, and a weighing main platform is fixedly connected to the output end of the lifting main unit, and the weighing main platform is rotated in cooperation with the lifting main unit to adjust the angle, so that the top surface of the operating platform can fit as closely as possible to the bottom surface of the arch bridge, thereby increasing the contact range and area between the construction platform and the arc-shaped arch bridge, and can be adjusted along the curvature of the arc-shaped arch bridge, and a snap-on sleeve is fixedly installed on the outer surface of the weighing main platform.

[0013] Preferably, one end of the double-strand limit rod is fixedly connected to the outer surface of the snap-fit ​​sleeve, and the outer surface of the pusher is fixedly mounted on the bottom surface of the snap-fit ​​sleeve. When the operating platform moves, the double-strand limit rod on the outer surface of the snap-fit ​​sleeve is used to support the surface of the operating platform, and the length of the double-strand limit rod is used to determine the expansion range of the operating platform.

[0014] Preferably, the bottom surface of the operating platform is fixedly connected to the output end of the pusher, and the pusher is used to push and extend the operating platform to expand the contact area with the bottom surface of the arc-shaped arch bridge, and the double-strand limit rod is movably sleeved on the outer surface of the operating platform, which is convenient for employees inside the operating platform to construct the wall on the inner surface of the arch bridge. The maintenance platform moves forward and backward through the traction walking device, pulley block and traction wire rope. An S-type 1000 hoist is placed on each of the left and right sides of the traction walking device as traction power, and the load-bearing main Four walking wheels are arranged at the bottom of the platform device, which moves along the platform between the arch pipes under the pulling of the traction wire rope of the S-type 1000 hoist. A protective cover is movably sleeved on the inner surface of the operating platform and the outer surface of the double-strand limit rod, and the protective cover is wrapped on the outer surface of the double-strand limit rod to prevent employees from touching the outer surface of the double-strand limit rod when moving, thereby causing accidental injury. The extension of the operating platform can increase the ductility of the working platform, increase the scope, area and length of construction, and increase the coverage area.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model discloses a self-propelled lifting arch bridge construction platform device, in which two groups of 32 steel wire ropes are arranged on the main arch top surface, which are tied to the main span arch top body as anchor points for traction steel wire ropes of the maintenance construction platform. The telescopic basket is moved to the central position of the bottom of the arch bridge, and the mobile frame is moved on the surface of the telescopic basket in cooperation with the mobile frame. One end of the lifting main machine is installed on the outer surface of the guide frame, and the operating platform can be adjusted for arch bridges of different sizes. The support frame is limited in position in cooperation with the support rod, and the climber is moved upward on the surface of the outer telescopic ladder to lift and lower the height. When the lifting main machine is cooperated with the weighing main platform, the main platform is weighed. Rotate to adjust the angle so that the top surface of the operating platform can fit as closely as possible to the bottom surface of the arch bridge, increasing the contact range and area between the construction platform and the arc-shaped arch bridge, and can be adjusted along with the curvature of the arc-shaped arch bridge, making it convenient for employees inside the operating platform to construct the wall on the inner surface of the arch bridge. The maintenance platform moves forward and backward through the traction walking device, pulley block and traction wire rope. An S-type 1000 hoist is placed on each of the left and right sides of the traction walking device as traction power. Four walking wheels are set at the bottom of the load-bearing main platform device, and it moves along the platform between the arch top pipes under the pull of the traction wire rope of the S-type 1000 hoist;

[0017] 2. The utility model describes a self-propelled liftable arch bridge construction platform device, which cooperates with a pusher to push and extend the operating platform to expand the contact area with the bottom surface of the arc-shaped arch bridge. When the operating platform moves, the double-strand limit rod on the outer surface of the clamping sleeve is used to support the surface of the operating platform. At the same time, the length of the double-strand limit rod is used to determine the expandable range of the operating platform. The protective sleeve is used to wrap the outer surface of the double-strand limit rod to prevent employees from contacting the outer surface of the double-strand limit rod when moving, thereby preventing accidental injuries. The extension of the operating platform can increase the ductility of the working platform, increase the scope, area, and length of construction, and increase the coverage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the support frame in the utility model;

[0021] Figure 3 It is a schematic diagram of a cross-sectional three-dimensional structure of the support frame in the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the main weighing platform in the utility model;

[0023] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the weighing main platform in the utility model.

[0024] In the figure: 11, telescopic basket; 12, mobile frame; 13, support rod; 14, support frame; 15, external telescopic ladder; 16, guide frame; 17, climber; 18, lifting host; 19, weighing main platform; 110, snap-on sleeve; 111, double-strand limit rod; 112, pusher; 113, operating platform; 114, protective sleeve. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figures 1 to 5As shown, a self-propelled lifting arch bridge construction platform device of an embodiment of the utility model comprises a telescopic basket 11, two groups of 32 steel wire ropes are arranged at the main arch top surface, which are tied to the main span arch top body as anchor points for traction steel wire ropes of the maintenance construction platform, and the telescopic basket 11 is moved to the central position of the bottom of the arch bridge. A compression support unit is movably sleeved on the outer surface of the telescopic basket 11, and the compression support unit comprises a moving frame 12 and a supporting frame 14. A lifting and moving unit is movably sleeved on the outer surface of the supporting frame 14, and the lifting and moving unit comprises an outer telescopic ladder 15, a guide The guide frame 16 and the climber 17 are provided with a swing expansion unit on the outer surface of the guide frame 16, and the swing expansion unit includes a double-strand limit rod 111, a pusher 112 and an operating platform 113. The inner surface of the mobile frame 12 is slidably sleeved on the outer surface of the telescopic basket 11, and the mobile frame 12 moves on the surface of the telescopic basket 11. One end of the lifting host 18 is installed on the outer surface of the guide frame 16, and the operating platform 113 can be adjusted facing arch bridges of different sizes. The number of support frames 14 is set to be multiple, and the bottom end of the support frame 14 is fixedly installed On the top surface of the left side of the telescopic basket 11, the bottom surface of another support frame 14 is fixedly installed on the top surface of the mobile frame 12. The top surface of the mobile frame 12 is fixedly connected with a support rod 13 arranged on the outer surface of the support frame 14. The support rod 13 is used to limit the position of the support frame 14, and the climber 17 is used to move up on the surface of the outer telescopic ladder 15 to raise or lower its height. The outer surface of the outer telescopic ladder 15 is set on the outer surface of the support frame 14, and the position of the climber 17 is set on the inner surface of the guide frame 16. The outer surface of the output end of the device 17 is slidably sleeved on the outer surfaces of the supporting frame 14 and the outer telescopic ladder 15 respectively, and the outer surface of the guide frame 16 is detachably installed with a lifting host 18, and a weighing main platform 19 is fixedly connected to the output end of the lifting host 18. The weighing main platform 19 is rotated in cooperation with the lifting host 18 to adjust the angle, so that the top surface of the operating platform 113 can fit as closely as possible to the bottom surface of the arch bridge, thereby increasing the contact range and area between the construction platform and the arc-shaped arch bridge, and can be adjusted along the curvature of the arc-shaped arch bridge.

[0027] like Figures 1 to 5As shown, a snap-fit ​​sleeve 110 is fixedly installed on the outer surface of the weighing main platform 19, one end of a double-strand limit rod 111 is fixedly connected to the outer surface of the snap-fit ​​sleeve 110, and the outer surface of the pusher 112 is fixedly installed on the bottom surface of the snap-fit ​​sleeve 110. When the operating platform 113 moves, the double-strand limit rod 111 on the outer surface of the snap-fit ​​sleeve 110 supports the surface of the operating platform 113, and the length of the double-strand limit rod 111 is used to determine the expandable extension range of the operating platform 113. The bottom surface of the operating platform 113 is fixedly connected to the output end of the pusher 112, and the pusher 112 is used to push and extend the operating platform 113, so as to expand the contact area with the bottom surface of the arc-shaped arch bridge, and the double-strand limit rod 111 is movably sleeved on the outer surface of the operating platform 113, which is convenient for operating the platform 1 13 The employees inside are constructing the wall on the inner surface of the arch bridge. The maintenance platform moves forward and backward through the traction walking device, pulley block and traction wire rope. An S-type 1000 hoist is placed on each of the left and right sides of the traction walking device as traction power. Four walking wheels are arranged at the bottom of the load-bearing main platform device. It moves along the platform between the arch pipes under the pulling of the traction wire rope of the S-type 1000 hoist. The inner surface of the operating platform 113 and the outer surface of the double-strand limit rod 111 are movably sleeved with a protective sleeve 114, which is wrapped on the outer surface of the double-strand limit rod 111 with the protective sleeve 114 to prevent employees from touching the outer surface of the double-strand limit rod 111 when moving, thereby preventing accidental injury. The extension of the operating platform 113 can increase the ductility of the working platform, increase the scope, area and length of construction, and increase the coverage area.

[0028] Working principle:

[0029] Two groups of 32 steel wire ropes are arranged on the main arch surface and tied to the main span arch body as anchor points for traction steel wire ropes of the maintenance construction platform. The telescopic basket 11 is moved to the central position of the bottom of the arch bridge, and the mobile frame 12 is cooperated to move on the surface of the telescopic basket 11. One end of the lifting host 18 is installed on the outer surface of the guide frame 16. The operating platform 113 can be adjusted for arch bridges of different sizes. The support frame 14 is limited in position by the support rod 13, and the climber 17 is cooperated to move upward on the surface of the outer telescopic ladder 15 to raise or lower its height. The lifting host 18 is cooperated to rotate the main weighing platform 19 to adjust the height of the arch bridge. The angle is adjusted in this way so that the top surface of the operating platform 113 can fit as closely as possible to the bottom surface of the arch bridge, thereby increasing the contact range and area between the construction platform and the curved arch bridge, and being able to adjust along with the curvature of the curved arch bridge, making it convenient for employees inside the operating platform 113 to construct the wall on the inner surface of the arch bridge. The maintenance platform moves forward and backward through the traction walking device, pulley block and traction wire rope. An S-type 1000 hoist is placed on each of the left and right sides of the traction walking device as traction power. Four walking wheels are arranged at the bottom of the load-bearing main platform device, which moves along the platform between the arch top pipes under the pull of the traction wire rope of the S-type 1000 hoist.

[0030] The pusher 112 is used to push and extend the operating platform 113 to expand the contact area with the bottom surface of the arc-shaped arch bridge. When the operating platform 113 moves, the double-strand limit rod 111 on the outer surface of the snap-on sleeve 110 is used to support the surface of the operating platform 113. At the same time, the length of the double-strand limit rod 111 is used to determine the expandable range of the operating platform 113. The protective sleeve 114 is used to wrap the outer surface of the double-strand limit rod 111 to prevent employees from contacting the outer surface of the double-strand limit rod 111 when moving, thereby causing accidental injuries. The operating platform 113 slides on the surface of the double-strand limit rod 111, and its sliding area can increase the ductility of the working platform, increase the scope, area, and length of construction, and increase the coverage area.

[0031] To prevent the traction device from malfunctioning, a safety lock is set on each side. When the traction device fails, the wire rope can be locked in time. An adjustable center of gravity mechanism is designed in the middle of the load-bearing main platform device, and 5 rollers are designed around the mechanism. The mechanism can automatically adjust the angle of the lifting truss as the traction walking device moves forward, so that the lifting truss always maintains a vertical and horizontal state. The bottom mobile platform can be extended and retracted left and right. Now in the process of the traction device moving, the bottom mobile platform is extended and retracted to pass the boom, and the inner telescopic ladder is lifted by lifting the gear rack of the main machine, so that the entire equipment passes through the cross brace. When in working state, the telescopic truss can be bolted to the telescopic ladder to ensure the stability of the bottom mobile platform.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-propelled lifting arch bridge construction platform device, characterized in that: The invention comprises a telescopic basket (11), a compression-resistant support unit movably sleeved on the outer surface of the telescopic basket (11), the compression-resistant support unit comprising a moving frame (12) and a support frame (14), a lifting and moving unit movably sleeved on the outer surface of the support frame (14), the lifting and moving unit comprising an external telescopic ladder (15), a guide frame (16) and a climber (17), a swing expansion unit being arranged on the outer surface of the guide frame (16), the swing expansion unit comprising a double-strand limit rod (111), a pusher (112) and an operating platform (113).

2. The self-propelled escalable arch bridge construction platform device according to claim 1, characterized in that: The inner surface of the movable frame (12) is slidably sleeved on the outer surface of the telescopic basket (11), and a plurality of the supporting frames (14) are provided.

3. The self-propelled escalable arch bridge construction platform device according to claim 1, characterized in that: The bottom end of the support frame (14) is fixedly mounted on the top surface of the left side of the telescopic basket (11), and the bottom surface of another support frame (14) is fixedly mounted on the top surface of the mobile frame (12). The top surface of the mobile frame (12) is fixedly connected to a support rod (13) arranged on the outer surface of the support frame (14).

4. The self-propelled lifting arch bridge construction platform device according to claim 1 is characterized in that: The outer surface of the external telescopic ladder (15) is arranged on the outer surface of the support frame (14), and the position of the climber (17) is arranged on the inner surface of the guide frame (16).

5. The self-propelled escalable arch bridge construction platform device according to claim 1, characterized in that: The outer surface of the output end of the climber (17) is slidably sleeved on the outer surfaces of the support frame (14) and the outer telescopic ladder (15), respectively; the outer surface of the guide frame (16) is detachably mounted with a lifting host (18); the output end of the lifting host (18) is fixedly connected with a weighing main platform (19); and a snap-on sleeve (110) is fixedly mounted on the outer surface of the weighing main platform (19).

6. The self-propelled escalable arch bridge construction platform device according to claim 1, characterized in that: One end of the double-stranded limiting rod (111) is fixedly connected to the outer surface of the snap-fit ​​sleeve (110), and the outer surface of the pusher (112) is fixedly mounted on the bottom surface of the snap-fit ​​sleeve (110).

7. The self-propelled liftable arch bridge construction platform device according to claim 1, characterized in that: The bottom surface of the operating platform (113) is fixedly connected to the output end of the pusher (112), and the double-strand limiting rod (111) is movably sleeved on the outer surface of the operating platform (113), and a protective shell (114) is movably sleeved on the inner surface of the operating platform (113) and on the outer surface of the double-strand limiting rod (111).

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