Self-propelled under-bridge construction operation platform

Abstract

The utility model discloses a self-propelled under-bridge construction operation platform. Comprising walking mechanisms, a supporting structure, a suspension structure, an under-bridge workbench, a connecting piece, a bridge, an operation panel and a camera, the walking mechanisms comprise two crawler-type walking wheels, a bearing rod and a power device, and the walking mechanisms are arranged on the two sides of the bridge; the upper part of the supporting structure is connected with the suspension structure; the suspension structure is arranged outside a bridge guardrail, and the lower portion of the suspension structure is connected with the under-bridge workbench. The under-bridge workbench can be split into a plurality of sections which can be connected into a whole through connecting pieces; the operation panel is arranged on the under-bridge workbench and can be matched with the camera to achieve movement of the construction operation platform. The bridge construction device is hung on the two sides of a bridge through the supporting structures, can cross guardrails, moves along the bridge through the walking mechanisms, can achieve construction operation below the bridge, does not need to occupy carriageways, and does not affect normal traffic during construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge maintenance construction, and in particular relates to a self-propelled under-bridge construction operation platform. Background Art

[0002] As highway bridges age, they gradually develop various defects, necessitating reinforcement and repair of operating bridges. This includes repairing cracks in bridge casings, replacing beam bottom supports, replacing bolts on the lower portion of steel bridges, and applying anti-corrosion coatings to steel structures. Traditional construction methods employ scaffolding, lifts, bridge inspection vehicles, or suspended scaffolding, tailored to the structural characteristics of the bridge and the environment beneath it. However, scaffolding construction is suitable for situations where defects are concentrated and the construction location needs to be constantly moved, resulting in low construction efficiency and the need for sufficient platform space under the bridge. Bridge inspection vehicles are also expensive to construct, and they occupy the roadway, significantly impacting traffic. Suspended scaffolding requires a large area to fully cover the working surface under the bridge, resulting in high costs. Utility Model Content

[0003] To address the problems mentioned in the previous article, the present invention provides a self-propelled underbridge construction platform suitable for operations under various bridges. By being suspended from either side of the bridge, it can cross guardrails and, using a traveling mechanism, can move along the bridge, enabling construction operations beneath the bridge without occupying the roadway and without disrupting normal traffic flow. The platform is assembled from multiple components, making it easy to transport and install on site.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] The self-propelled under-bridge construction platform of the utility model comprises:

[0006] The walking mechanism is installed on the sidewalks on both sides of the bridge;

[0007] The supporting structure is fixed above the walking mechanisms on both sides;

[0008] The suspension structure is installed on the outside of the guardrails on both sides of the bridge;

[0009] The underbridge working platform is suspended under the bridge, with both sides connected to the supporting structure through suspension structures;

[0010] The walking mechanism includes two parallel arranged crawler walking wheels, a load-bearing rod, a power unit and a counterweight device. The load-bearing rod is installed on the top of the two crawler walking wheels, and the top of the load-bearing rod is fixed to the bottom of the supporting structure through a connecting piece. The power unit and the counterweight device are installed on the two crawler walking wheels.

[0011] The counterweight device includes stones and sandbags, and the weight of the entire walking mechanism must be greater than 300kg.

[0012] The crawler-type running wheels can move along the length of the bridge, with a length of 1-3 meters, and are powered by a power device that includes a battery and a generator.

[0013] The support structure, suspension structure and underbridge work platform are all composed of multiple support units welded vertically or horizontally; each support unit is a rectangular parallelepiped frame connected by vertical rods and horizontal rods, and the side of the frame is connected with diagonal rods for support;

[0014] The two supporting structures extend upward and then extend to both sides over the guardrail, and are connected to the upper parts of the two suspension structures located on the outside of the guardrail through connecting pieces;

[0015] The bottoms of the two suspension structures are connected to both ends of the work platform under the bridge through connecting pieces.

[0016] The working platform under the bridge is composed of multiple segments, the number of which is adjusted according to the width of the bridge, and the multiple segments are connected into a whole through connectors;

[0017] The connecting member includes a bolt pair and a connecting plate;

[0018] For the connectors between the support structure and the suspension structure, the connectors between the suspension structure and the work platform under the bridge, and the connectors between two adjacent segments: a connecting plate is provided at each diagonal position of the two butt joints connected by the connector, and a plurality of through holes are provided on the connecting plate, through which bolt pairs pass to fix the two connecting plates on the two butt joints;

[0019] For the connecting parts between the top of the load-bearing rod and the bottom of the supporting structure of the walking mechanism: the top of the load-bearing rod and the bottom of the supporting structure are welded with multiple connecting plates in opposite positions, and multiple through holes are opened on the connecting plates. The bolt pairs pass through the through holes to fix the two connecting plates at the top of the load-bearing rod and the bottom of the supporting structure.

[0020] An operating panel is provided on the work platform under the bridge for operating the movement of the walking mechanism, thereby controlling the forward and backward movement of the working platform along the length direction of the bridge.

[0021] A camera is provided on the side of the supporting structure for observing the situation on the bridge and realizing the movement of the working platform by cooperating with the operation panel.

[0022] Beneficial effects of the utility model:

[0023] The utility model realizes the movement of the entire working platform by arranging a walking mechanism on the sidewalk, providing power through a power device, and connecting and fixing it with a supporting structure; by arranging the walking mechanism on the sidewalk, it avoids occupying the driving lane, and adopts crawler-type walking wheels to increase the contact area with the sidewalk, thereby reducing damage to the sidewalk; and an operating panel is arranged on the workbench under the bridge, so that the operator can conveniently control the movement of the working platform; by arranging a supporting structure and extending it outward over the guardrail, the influence of the guardrail on the movement of the working platform is avoided; the splicing of various components is realized by connecting parts, which facilitates transportation and on-site lifting; by arranging a camera, the situation on the bridge can be observed, and the movement of the working platform can be realized in conjunction with the operating panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic structural diagram of Part A of the utility model;

[0026] Figure 3 This is a schematic diagram of the support structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the connecting piece of the utility model.

[0028] In the figure: 1. Traveling mechanism; 11. Crawler-type traveling wheel; 12. Load-bearing rod; 13. Power unit; 14. Counterweight device; 2. Support structure; 21. Vertical rod; 22. Horizontal rod; 23. Diagonal rod; 3. Suspension structure; 4. Underbridge work platform; 5. Connecting parts; 51. Bolt pair; 52. Connecting plate; 6. Bridge; 61. Sidewalk; 62. Guardrail; 63. Bridge deck; 7. Operation panel; 8. Camera. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. The specific embodiments described here are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] like Figure 1The self-propelled underbridge construction work platform of the present invention includes a walking mechanism 1, a supporting structure 2, a suspension structure 3, an underbridge work platform 4, a connecting piece 5, a bridge 6, an operating panel 7 and a camera 8; the walking mechanism 1 includes two crawler walking wheels 11, a load-bearing rod 12, a power device 13 and a counterweight device 14, and the walking mechanism 1 is arranged on both sides of the bridge; the supporting structure 2 is arranged on the walking mechanism 1, and the upper part is connected to the suspension structure 3; the suspension structure 3 is arranged on the outside of the guardrail 62 of the bridge 6, and the lower part is connected to the underbridge work platform 4; the underbridge work platform 4 can be divided into multiple segments, which can be connected into a whole by a connecting piece 5; the operating panel 7 is arranged on the underbridge work platform 4 for controlling the movement of the construction work platform; the camera 8 is arranged on the upper side of the supporting structure for observing the situation on the bridge, and can cooperate with the operating panel 7 to realize the movement of the work platform.

[0031] like Figure 2 As shown, the walking mechanism 1 includes two crawler wheels 11, a load-bearing rod 12, a power device 13 and a counterweight device 14. The walking mechanism 1 is arranged on the sidewalks 61 on both sides of the bridge 6, and the upper side is connected to the lower part of the supporting structure 2 through a connecting member 5. The device of the utility model realizes movement through the power device 13 and the crawler wheels 11.

[0032] like Figure 1 and Figure 3 As shown, the supporting structure 2, the suspension structure 3, and the under-bridge work platform 4 are all composed of multiple supporting units welded up and down or left and right; each supporting unit is a rectangular frame composed of vertical rods 21 and horizontal rods 22, and the side of the frame is connected with diagonal rods 23 for support.

[0033] The support structure 2 extends outward over the guardrail 62 and is connected to the upper portion of the suspension structure 3 .

[0034] The suspension structure 3 is arranged outside the guardrail 62, and the lower part is connected to the underbridge working platform 4 through a connecting piece 5. The underbridge working platform 4 can be split into multiple sections, which can be connected into a whole through the connecting piece 5.

[0035] like Figure 4 As shown, the connecting member 5 includes a bolt pair 51 and a connecting plate 52 . The connecting plate 52 is provided with a plurality of through holes, and the bolt pair 51 passes through the through holes to fix the two connecting plates 52 .

[0036] The operation panel 7 is installed on the work platform 4 under the bridge, and can operate the walking mechanism 1 to move, thereby controlling the forward and backward movement of the construction work platform. The camera 8 is installed on the side of the support structure to observe the situation on the bridge and can cooperate with the operation panel 7 to realize the movement of the work platform.

[0037] Specific implementation process:

[0038] The traveling mechanism 1 was placed on the sidewalks 61 on either side of the bridge. Connectors were used to secure the supporting structure 2 and the load-bearing rods 12 of the traveling mechanism 1 as a single unit. From below, the suspension structure 3 was hoisted onto the upper portion of the supporting structure 2 and secured using connectors 5. Construction workers climbed along the suspension structure 3 to the bottom and simultaneously hoisted the underbridge work platform 4 to the lower end of the bridge 6, completing its assembly with the suspension structure 3.

[0039] During the construction process, the construction position can be adjusted by the following methods:

[0040] Turn on the power device 13, open the operation panel 7 and the camera 8, and the camera 8 transmits the bridge surface condition to the control terminal. When an obstacle is found in front of the traveling mechanism 1, the staff on the bridge is notified to clear it. After that, the staff under the bridge operates the operation panel 7 according to the road condition of the bridge surface 63 photographed by the camera 8, and transmits the travel instructions of the operation panel 7 to the controller of the traveling mechanism 1 through the control terminal, and drives the entire device to move to the required working surface through the traveling mechanism 1.

Claims

1. A self-propelled under-bridge construction platform, characterized in that: include: A walking mechanism (1) is provided on sidewalks (61) on both sides of the bridge (6); A supporting structure (2) is fixed above the walking mechanisms (1) on both sides; A suspension structure (3) is arranged outside guardrails (62) on both sides of the bridge (6); The underbridge working platform (4) is suspended below the bridge (6), and its two sides are respectively connected to the two sides of the supporting structure (2) through the suspension structure (3); The walking mechanism (1) comprises two crawler-type walking wheels (11) arranged in parallel, a load-bearing rod (12), a power device (13) and a counterweight device (14); the load-bearing rod (12) is installed on the top of the two crawler-type walking wheels (11); the top of the load-bearing rod (12) is fixed to the bottom of the supporting structure (2) through a connecting piece (5); the power device (13) and the counterweight device (14) are installed on the two crawler-type walking wheels (11); The support structure (2), the suspension structure (3), and the underbridge work platform (4) are all composed of a plurality of support units welded vertically or horizontally; each support unit is a rectangular parallelepiped frame formed by connecting a vertical rod (21) and a horizontal rod (22), and a diagonal rod (23) is connected to the side of the frame for support; The two supporting structures (2) extend upward and then extend toward both sides to cross the guardrail (62), and are connected to the upper parts of the two suspension structures (3) located outside the guardrail (62) through the connecting pieces (5); The bottoms of the two suspension structures (3) are connected to both ends of the underbridge work platform (4) via connecting pieces (5) respectively; The underbridge working platform (4) is composed of a plurality of segments, the number of which is adjusted according to the width of the bridge, and the plurality of segments are connected into a whole via connecting pieces (5).

2. The self-propelled under-bridge construction work platform according to claim 1, characterized in that: The counterweight device (14) includes stones and sandbags, and the deadweight of the entire walking mechanism needs to be greater than 300 kg.

3. The self-propelled under-bridge construction work platform according to claim 1, characterized in that: The crawler-type running wheel (11) can move along the length direction of the bridge, has a length of 1-3 m, and is powered by a power device (13) to achieve movement.

4. The self-propelled under-bridge construction work platform according to claim 1, characterized in that: The connecting member (5) comprises a bolt pair (51) and a connecting plate (52); For the connectors between the supporting structure (2) and the suspension structure (3), the connectors between the suspension structure (3) and the underbridge work platform (4), and the connectors between two adjacent segments: A connecting plate (52) is provided at each diagonal position of two butt joint surfaces connected by a connecting member. A plurality of through holes are provided on the connecting plate (52). Bolt pairs (51) pass through the through holes to fix the two connecting plates (52) on the two butt joint surfaces. For the connection piece (5) between the top of the load-bearing rod (12) of the walking mechanism (1) and the bottom of the supporting structure (2): The top of the load-bearing rod (12) and the bottom of the supporting structure (2) are both welded with a plurality of corresponding connecting plates (52), and a plurality of through holes are opened on the connecting plates (52). Bolt pairs (51) pass through the through holes to fix the two connecting plates (52) at the top of the load-bearing rod (12) and the bottom of the supporting structure (2).

5. The self-propelled under-bridge construction platform according to claim 1, characterized in that: An operating panel (7) is provided on the underbridge work platform (4) for operating the traveling mechanism (1) to move, thereby controlling the working platform to move forward and backward along the length direction of the bridge.

6. The self-propelled under-bridge construction work platform according to claim 1, characterized in that: The top surfaces of the two supporting structures are both provided with cameras (8) for observing the conditions of the bridge deck (63) and realizing the movement of the working platform by cooperating with the operating panel (7).

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