A hanger device based on concrete arch bridge demolition construction

Abstract

The present invention provides a hanger device based on the demolition construction of a concrete arch bridge, which relates to the technical field of hoisting equipment, including a lifting device, a steel wire rope, a hanging plate, a movable plate, an opening and closing component for driving two movable plates to move closer to or away from each other, a supporting part and a tightening part, wherein the hanging plate is fixed to the telescopic end of the lifting device by a steel wire rope, and the movable plate is slidably connected to the hanging plate by an opening and closing component; two supporting parts are provided, which are arranged in a front-and-rear mirror image and are respectively fixed to the bottom of the corresponding movable plates, so as to stably support the demolished arch bridge structure; the supporting part includes an electric roller and a supporting plate; the electric roller is fixed to the corresponding movable plate, so as to drive the supporting plate to move horizontally; the supporting plate is slidably connected to the movable plate and slidably cooperates with the electric roller, so as to clamp and support the demolished arch bridge structure; the technical effects of stable lifting and moving processes, uniform force, improved construction efficiency and expanded scope of application can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and in particular to a hanger device based on concrete arch bridge demolition construction. Background Art

[0002] A hanger is a construction device that is usually used to suspend and hoist heavy objects for transportation, installation or temporary support. For the demolition of concrete arch bridges, a hanger is essential. The hanger is used to support and hoist different parts of the arch bridge structure for demolition operations.

[0003] The Chinese invention patent with patent number CN117819403B discloses an auxiliary lifting equipment for bridge construction, including a lifting equipment, and also includes: a hanging plate, fixedly installed at the end of the wire rope of the lifting equipment, wherein the lower end of the hanging plate is connected with a symmetrically arranged L-shaped plate through an opening and closing component, and the opening and closing component is used to drive the two L-shaped plates to move closer to or away from each other; two symmetrically arranged strip rods, each of which is respectively connected to the bottom of the two L-shaped plates through a telescopic component, wherein the ends of the two strip rods are fixedly connected with an integrally formed oblique rod, and the two oblique rods are distributed in an eight-shaped shape below the hanging plate; the invention can quickly complete the angle adjustment of the bridge deck, significantly improve the installation efficiency of the bridge deck, indirectly reduce the construction cost of the bridge, and can improve the stability during the lifting process.

[0004] Although the above scheme improves the working efficiency to a certain extent during the demolition construction of concrete arch bridges, in actual use, since the arch bridge is lifted and transported mainly through the horizontal section of the L-shaped plate, and the horizontal section of the L-shaped plate is limited in length, its support method is easily affected by external factors during the lifting process, causing the supporting structure to shake, thereby affecting the stability of the lifting process, and may cause the bridge deck structure to be locally subjected to excessive force during the lifting process, especially near the contact point between the diagonal rod and the bridge deck structure, resulting in uneven force distribution on the lifting structure, thereby increasing the risk of damage to the bridge deck structure; at the same time, the diagonal rod structure is relatively fixed and difficult to adapt to bridge deck structures of different shapes and sizes, limiting its scope of application. Summary of the invention

[0005] The present application solves the technical problems of unstable lifting, uneven force, low construction efficiency and limited scope of application in the prior art by providing a hanger device based on the demolition construction of a concrete arch bridge, and achieves the technical effects of stable lifting and moving processes, uniform force, improved construction efficiency and expanded scope of application.

[0006] The present application provides a hanger device based on the demolition construction of a concrete arch bridge, comprising a lifting device, a steel wire rope, a hanging plate, a movable plate, an opening and closing component for driving two movable plates to move closer to or away from each other, a supporting part and a tightening part, wherein the hanging plate is fixed to the telescopic end of the lifting device by a steel wire rope, and the movable plate is slidably connected to the hanging plate by the opening and closing component;

[0007] The support parts are provided with two, arranged in a front and rear mirror image, and are respectively fixed at the bottom of the corresponding movable plate, for stably supporting the arch bridge structure after demolition;

[0008] The support part includes a motorized roller and a support plate;

[0009] The electric roller is fixed on the corresponding moving plate and is used to drive the supporting plate to move horizontally;

[0010] The support plate is slidably connected to the moving plate and slidably cooperates with the electric roller to clamp and support the dismantled arch bridge structure.

[0011] Furthermore, the electric roller is driven by its internal motor and connected to an external power source through wires to achieve precise control of the support plates. When the arch bridge needs to be demolished, the electric rollers on both sides are driven to drive the corresponding support plates on both sides to move toward and away from each other synchronously, thereby clamping and supporting the arch bridge that needs to be demolished.

[0012] Furthermore, an anti-slip strip is provided on one side of the electric roller that cooperates with the support plate.

[0013] Furthermore, the support plate is an arc-shaped structure, which is used to fit closely with the bottom structure of the arch bridge to better adapt to the curved surface changes of the arch bridge structure and provide stable supporting force.

[0014] Furthermore, the support portion further includes a hanging ring;

[0015] The lifting ring is slidably connected to a moving plate opposite to the support plate, and is used to support the free end of the support plate after the support plate moves and lifts the arch bridge.

[0016] Furthermore, a fixing part is provided inside the lifting ring, and the fixing part includes an electric telescopic rod and a clamping plate;

[0017] The electric telescopic rods are provided with two, arranged in mirror image up and down, and respectively fixed on the lifting rings, and are used to drive the clamping plate to move, thereby clamping and fixing the support plate;

[0018] The clamping plates are provided with two, arranged in mirror image up and down, corresponding to the electric telescopic rods one by one, and are respectively connected to the telescopic ends of the corresponding electric telescopic rods through ball hinge connection.

[0019] Furthermore, the support plate includes a track and a branch plate;

[0020] The track is an arc-shaped long strip structure, which is slidably connected in the corresponding moving plate and is used to provide a stable moving path for the support plate;

[0021] The branch plate is fixed on the track and is used to support a part of the dismantled arch bridge structure.

[0022] Furthermore, a slide rail is fixed on the hanging plate, and two slide rails are provided in an L-shaped structure, which are respectively fixed on the front and rear ends of the hanging plate and arranged in a mirror image.

[0023] Furthermore, the tightening parts are provided with two, arranged in a front-to-back mirror image, corresponding to the supporting parts one by one, and respectively arranged above the corresponding hanging plates; the tightening parts include a motor, an electric slider, a winding frame and a steel cable;

[0024] The electric slider is slidably connected to the corresponding slide rail, and is used to drive the steel cable to wrap around and tighten the arch bridge structure;

[0025] The motor is fixed on the electric slider to provide power for the tightening part;

[0026] The reeling frame is fixed above the electric slider and connected to the output shaft of the motor, and is used for reeling in and releasing the steel cable;

[0027] One end of the steel cable is fixed on the branch plate, and the other end is connected to the winding frame. The winding frame is driven by the rotation of the motor to tighten or release the steel cable.

[0028] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0029] The moving mode and lifting mode of the diagonal rod in the prior art are optimized and improved, support parts are added and the arch bridge structure after dismantling is lifted at both ends by support plates. The horizontal lifting mode at both ends can provide more stable support, reduce the shaking and tilting of the structure during the lifting process, and improve the safety of the lifting process. The technical problems of unstable lifting, uneven force, low construction efficiency and limited scope of application in the prior art are effectively solved, and the technical effects of stable lifting and moving process, uniform force, improved construction efficiency and expanded scope of application are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional structural schematic diagram of a hanger device based on the demolition construction of a concrete arch bridge according to the present invention.

[0031] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a hanger plate and a support part of a hanger device based on the demolition construction of a concrete arch bridge.

[0032] Figure 3It is a schematic diagram of the three-dimensional structure of a movable plate based on the demolition construction of a concrete arch bridge according to the present invention.

[0033] Figure 4 It is a three-dimensional structural schematic diagram of a support plate of a hanger device based on the demolition construction of a concrete arch bridge according to the present invention.

[0034] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a lifting ring of a hanger device based on the demolition construction of a concrete arch bridge.

[0035] Figure 6 It is a schematic diagram of the state of the support part of the hanger device based on the demolition construction of a concrete arch bridge of the present invention when clamping the demolished part of the arch bridge structure.

[0036] Figure 7 It is a partial enlarged schematic diagram of position A of a hanger device based on the demolition construction of a concrete arch bridge according to the present invention.

[0037] Figure 8 It is a schematic diagram of the state of a steel cable in a tightening part of a hanger device based on the demolition construction of a concrete arch bridge according to the present invention when performing surrounding tightening.

[0038] In the figure: 100, lifting equipment; 110, wire rope; 120, hanging plate; 121, slide rail; 130, moving plate; 200, opening and closing component; 300, supporting part; 310, electric roller; 320, supporting plate; 321, track; 322, branch plate; 330, lifting ring; 331, electric telescopic rod; 332, clamping plate; 400, tightening part; 410, motor; 411, electric slider; 420, winding rack; 430, steel cable. DETAILED DESCRIPTION

[0039] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0040] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] See also Figure 1 , which is a schematic diagram of the three-dimensional structure of a hanger device based on the demolition construction of a concrete arch bridge of the present invention; the hanger device based on the demolition construction of a concrete arch bridge of the present application increases a support part 300 and lifts the arch bridge structure at both ends after demolition through a support plate 320. The horizontal lifting method at both ends can provide more stable support, reduce the shaking and tilting of the structure during the lifting process, improve the safety of the lifting process, and achieve the technical effects of stable lifting and moving process, uniform force, improved construction efficiency and expanded scope of application.

[0043] Embodiment 1: Figure 1 , Figure 2 and Figure 6 As shown, the present application is a hanger device based on the demolition construction of a concrete arch bridge, comprising a lifting device 100, a steel wire rope 110, a hanging plate 120, a moving plate 130, an opening and closing component 200 for driving two moving plates 130 to move closer to or away from each other, a supporting part 300 and a tightening part 400, wherein the hanging plate 120 is fixed to the telescopic end of the lifting device 100 through the steel wire rope 110, and the moving plate 130 is slidably connected to the hanging plate 120 through the opening and closing component 200;

[0044] The support parts 300 are provided with two, arranged in front and back mirror images, and are respectively fixed at the bottom of the corresponding movable plate 130, for stably supporting the arch bridge structure after demolition;

[0045] The support part 300 includes a motorized roller 310 and a support plate 320;

[0046] The electric roller 310 is fixed on the corresponding moving plate 130 and is used to drive the supporting plate 320 to move horizontally;

[0047] The support plate 320 is slidably connected to the moving plate 130 and slidably cooperates with the electric roller 310 to clamp and support the dismantled arch bridge structure.

[0048] The electric roller 310 is driven by its internal motor and connected to an external power source through wires to achieve precise control of the support plate 320. When the arch bridge needs to be demolished, the electric rollers 310 on both sides are driven to drive the corresponding support plates 320 on both sides to move toward and away from each other synchronously, thereby clamping and supporting the arch bridge that needs to be demolished.

[0049] In order to prevent slipping and improve movement stability, preferably, an anti-slip strip is provided on one side of the electric roller 310 that cooperates with the support plate 320.

[0050] like Figure 3 As shown, arc grooves are provided in the two movable plates 130 for sliding connection with the corresponding support plates 320 , and the two support plates 320 can slide along the corresponding arc groove tracks to move toward or away from each other.

[0051] The lifting device 100 is used to drive the support part 300 and the arch bridge to move, and includes components such as a bracket, a hook, and a sling. It is preferably driven by an electric motor, and realizes the lifting and moving functions of equipment such as cranes and hoists through electric transmission; the opening and closing component 200 includes a driving motor, a double-headed threaded rod and a transmission gear. The opening and closing component 200 drives the transmission gear to rotate through the driving motor, and then drives the double-headed threaded rod to rotate, so that the two movable plates 130 are closer to or farther away from each other under the action of the double-headed threaded rod. This is a prior art and will not be elaborated here.

[0052] During actual operation of the embodiment of the present application, the steps are as follows: first, the lifting device 100 lifts the hanging plate 120 and the supporting part 300 thereunder to the top of the arch bridge structure to be demolished through the steel wire rope 110; then, the two movable plates 130 and the supporting parts 300 thereon are driven to approach each other through the opening and closing component 200, so that the support plate 320 fits and clamps the bottom structure of the arch bridge; then, the electric roller 310 is started to drive the support plate 320 to move along the movable plate 130, and the position of the support plate 320 is adjusted to better fit the curved surface of the arch bridge structure; finally, when the support plate 320 clamps and supports the arch bridge structure, the lifting device 100 is started to begin to descend, and the demolished arch bridge structure is safely and stably placed in the designated position.

[0053] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0054] It solves the technical problems of unstable lifting, uneven force, low construction efficiency and limited scope of application in the prior art, and achieves the technical effects of stable lifting and moving process, uniform force, improved construction efficiency and expanded scope of application.

[0055] Embodiment 2: In order to enhance the support force and flexibility of the hanger device, make the supporting and conveying operations faster and more convenient, and improve the stability of the device, the present application proposes the following technical solutions for the above technical problems, specifically:

[0056] like Figure 4 and Figure 5As shown, the support plate 320 is an arc-shaped structure, which is used to fit closely with the bottom structure of the arch bridge to better adapt to the curved surface changes of the arch bridge structure and provide stable supporting force.

[0057] The support portion 300 further includes a hanging ring 330;

[0058] The lifting ring 330 is slidably connected to the moving plate 130 opposite to the supporting plate 320, and is used to support the free end of the supporting plate 320 after the supporting plate 320 moves and lifts the arch bridge.

[0059] The hanging ring 330 is provided with a fixing part inside, and the fixing part includes an electric telescopic rod 331 and a clamping plate 332;

[0060] The electric telescopic rods 331 are provided with two, arranged in mirror image up and down, and are respectively fixed on the lifting ring 330, and are used to drive the clamping plate 332 to move, thereby clamping and fixing the support plate 320;

[0061] The clamping plates 332 are provided with two, which are arranged in a mirror image up and down, corresponding to the electric telescopic rods 331 one by one, and are respectively connected to the telescopic ends of the corresponding electric telescopic rods 331 through ball hinge connection.

[0062] The lifting ring 330 is slidably connected to the corresponding movable plate 130 through its internal electric driving slider. The lifting ring 330 can adjust the height position in time according to the distance between the two movable plates 130. When the support plate 320 moves to any position, the position of the lifting ring 330 can be adjusted so that the free end of the corresponding support plate 320 can pass through the lifting ring 330.

[0063] The support plate 320 of the arc-shaped structure adopted in this embodiment can better adapt to the changes in the curved surface of the arch bridge structure, thereby better fitting the curved surface of the arch bridge structure, providing a larger supporting area and a more uniform force distribution, thereby enhancing the supporting force and reducing the risk of damage to the structure due to excessive force at a single point; at the same time, the electric telescopic rod 331 and the clamping plate 332 are connected by a ball hinge, which provides sufficient freedom for the clamping and fixation of the support plate 320, so that the clamping plate 332 can be adaptively adjusted according to the different moving distances of the arc-shaped support plate 320, maintaining uniform force on both ends, improving bearing capacity and safety, facilitating operation and maintenance, and improving construction efficiency and accuracy.

[0064] Embodiment 3: In order to further expand the scope of application of the device and improve the stability of supporting transportation, the present application proposes the following technical solutions for the above technical problems, specifically:

[0065] like Figure 4 and Figure 5 As shown, the support plate 320 includes a track 321 and a branch plate 322;

[0066] The track 321 is an arc-shaped long strip structure, which is slidably connected in the corresponding moving plate 130, and is used to provide a stable moving path for the support plate 320;

[0067] The branch plate 322 is fixed on the track 321 and is used to support a portion of the dismantled arch bridge structure.

[0068] like Figure 6 and Figure 7 As shown, the tightening part 400 is provided with two, arranged in a front-to-back mirror image, corresponding to the support part 300 one by one, and respectively arranged above the corresponding hanging plate 120; the tightening part 400 includes a motor 410, an electric slider 411, a winding frame 420 and a steel cable 430;

[0069] The electric slider 411 is slidably connected to the corresponding slide rail 121, and is used to drive the steel cable 430 to wrap around and tighten the arch bridge structure;

[0070] The motor 410 is fixed on the electric slider 411 to provide power for the tightening part 400;

[0071] The reeling frame 420 is fixed above the electric slider 411 and connected to the output shaft of the motor 410, and is used to reel in and release the steel cable 430;

[0072] One end of the steel cable 430 is fixed on the branch plate 322 , and the other end is connected to the winding frame 420 . The winding frame 420 is driven by the rotation of the motor 410 to tighten or release the steel cable 430 .

[0073] The tension of the steel cable 430 can be adjusted at any time by controlling the rotation speed of the motor 410 as needed. The steel cable 430 can flexibly adjust the tightening ability of the support part 300 on the arch bridge structure exposed after disassembly, thereby achieving effective clamping and support of the complex arch bridge structure after disassembly.

[0074] In this embodiment, a steel cable 430 is arranged inside the branch plate 322, and the steel cable 430 is tightened by the motor 410 and the winding frame 420 in the tightening part 400, so that the steel cable 430 can cover more complex arch bridge structures such as exposed steel bars, thereby expanding the scope of application of the device to the disassembled arch bridge structure, and can significantly enhance the support part 300's ability to partially cover the complex arch bridge structure after disassembly, thereby reducing the safety hazards caused by structural deformation or bending.

[0075] Embodiment 4: Considering that after the arch bridge is dismantled, the steel bars and concrete with irregular shapes and structures will be unstable during the clamping and transportation process. In order to prevent them from falling from high altitudes, improve the stability during the dismantling and transportation process, and improve safety, this application proposes the following technical solutions for the above technical problems, which are as follows:

[0076] like Figure 7 and Figure 8 As shown, a slide rail 121 is fixed on the hanging plate 120. Two slide rails 121 are provided in an L-shaped structure, which are respectively fixed at the front and rear ends of the hanging plate 120 and arranged in a mirror image.

[0077] When the support plates 320 on both sides move to the position of the lifting rings 330 and the steel cables 430 need to be further tightened, the electric sliders 411 at both ends respectively drive the corresponding motors 410 and the steel cables 430 to move along the slide rails 121 on the hanging plates 120, so that the steel cables 430 wrap around and tighten the arch bridge structure as a whole, thereby tightening the partial arch bridge structure and its attached irregular, messy steel bars, cables, etc. during the demolition process.

[0078] In this embodiment, the electric slider 411 controls the motor 410 to move on the slide rail 121, so that the steel cable 430 can tightly wrap around and surround part of the arch bridge structure and its attached irregular, messy steel bars, cables, etc. during the demolition process. The surrounding and tightening method effectively prevents these objects from falling during high-altitude operations, greatly improving the stability and safety during the demolition and transportation process; at the same time, the winding tightening of the steel cable 430 not only provides additional supporting force, but also enhances the overall stability of the supporting structure, ensuring that the arch bridge structure will not be accidentally damaged or dumped during the demolition process, and can also adapt to complex demolition environments, such as high altitudes, narrow spaces, etc., to improve adaptability and flexibility; finally, the winding and surrounding tightening method reduces direct contact and impact on the arch bridge structure and its attached objects, reduces the risk of secondary damage, and protects the integrity and reuse value of the demolished objects.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hanger device for demolishing a concrete arch bridge, comprising a lifting device (100), a steel wire rope (110), a hanging plate (120), a movable plate (130), an opening and closing component (200) for driving two movable plates (130) to move closer to or farther from each other, a supporting part (300) and a tightening part (400), wherein the hanging plate (120) is fixed to the telescopic end of the lifting device (100) through the steel wire rope (110), and the movable plate (130) is slidably connected to the hanging plate (120) through the opening and closing component (200), characterized in that: The support parts (300) are provided with two parts, which are arranged in a front and rear mirror image and are respectively fixed at the bottom of the corresponding moving plate (130) to stably support the arch bridge structure after demolition; the support part (300) comprises an electric roller (310) and a support plate (320); the electric roller (310) is fixed on the corresponding moving plate (130) and is used to drive the support plate (320) to move horizontally; the support plate (320) is slidably connected to the moving plate (130) and slidably cooperates with the electric roller (310) to clamp and support the demolished arch bridge structure; The electric roller (310) is driven by an internal motor and connected to an external power source through electric wires to achieve precise control of the support plate (320). When the arch bridge needs to be dismantled, the electric rollers (310) on both sides are driven to drive the corresponding support plates (320) on both sides to move toward and away from each other synchronously, thereby clamping and supporting the arch bridge that needs to be dismantled. The support portion (300) further comprises a lifting ring (330); the lifting ring (330) is slidably connected to a movable plate (130) located opposite to the supporting plate (320), and is used to support the free end of the supporting plate (320) after the supporting plate (320) moves and lifts the arch bridge; A fixing part is arranged inside the lifting ring (330), and the fixing part includes an electric telescopic rod (331) and a clamping plate (332); two electric telescopic rods (331) are arranged in a mirror-like manner up and down, and are respectively fixed on the lifting ring (330) to drive the clamping plate (332) to move, thereby clamping and fixing the support plate (320); two clamping plates (332) are arranged in a mirror-like manner up and down, corresponding to the electric telescopic rod (331) one by one, and are respectively connected to the telescopic end of the corresponding electric telescopic rod (331) through a ball hinge connection method.

2. A hanger device based on concrete arch bridge demolition construction as claimed in claim 1, characterized in that: An anti-slip strip is provided on one side of the electric roller (310) that matches the support plate (320).

3. A hanger device based on concrete arch bridge demolition construction as claimed in claim 2, characterized in that: The support plate (320) is an arc-shaped structure, and is used to fit closely with the bottom structure of the arch bridge to better adapt to the curved surface changes of the arch bridge structure and provide stable supporting force.

4. A hanger device based on the demolition construction of a concrete arch bridge as claimed in claim 3, characterized in that: The support plate (320) comprises a track (321) and a branch plate (322); the track (321) is an arc-shaped long strip structure, slidably connected in the corresponding moving plate (130), and is used to provide a stable moving path for the support plate (320); the branch plate (322) is fixed on the track (321), and is used to support a part of the dismantled arch bridge structure.

5. The hanger device for concrete arch bridge demolition construction according to claim 1, characterized in that: A slide rail (121) is fixed on the hanging plate (120), and two slide rails (121) are provided in an L-shaped structure, which are respectively fixed at the front and rear ends of the hanging plate (120) and arranged in a mirror image.

6. A hanger device based on concrete arch bridge demolition construction as claimed in claim 5, characterized in that: The tightening parts (400) are provided with two, arranged in a front-to-back mirror image, corresponding to the support parts (300) one by one, and respectively arranged above the corresponding hanging plates (120); the tightening parts (400) include a motor (410), an electric slider (411), a winding frame (420) and a steel cable (430); The electric slider (411) is slidably connected to the corresponding slide rail (121) and is used to drive the steel cable (430) to wrap around and tighten the arch bridge structure; the motor (410) is fixed on the electric slider (411) to provide power for the tightening part (400); the winding rack (420) is fixed above the electric slider (411) and is connected to the output shaft of the motor (410) and is used to wind up and release the steel cable (430); one end of the steel cable (430) is fixed on the branch plate (322), and the other end is connected to the winding rack (420), and the winding rack (420) is driven by the rotation of the motor (410) to tighten or release the steel cable (430).

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